sdl-ios-xcode: src/render/opengles2/SDL_render

author	Sam Lantinga <slouken@libsdl.org>
date	Sun, 06 Feb 2011 00:00:13 -0800
parents
children	1f2b17f42fd0

rev	line source
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1 /*
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	2 SDL - Simple DirectMedia Layer
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	3 Copyright (C) 2010 itsnotabigtruck.
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	4
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	5 Permission is hereby granted, free of charge, to any person obtaining a
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	6 copy of this software and associated documentation files (the "Software"),
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	7 to deal in the Software without restriction, including without limitation
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	8 the rights to use, copy, modify, merge, publish, distribute, sublicense,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	9 and/or sell copies of the Software, and to permit persons to whom the
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	10 Software is furnished to do so, subject to the following conditions:
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	11
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	12 The above copyright notice and this permission notice shall be included in
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	13 all copies or substantial portions of the Software.
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	14
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	20 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	21 DEALINGS IN THE SOFTWARE.
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	22 */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	23
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	24 #include "SDL_config.h"
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	25
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	26 #if SDL_VIDEO_RENDER_OGL_ES2
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	27
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	28 #ifdef __IPHONEOS__
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	29 #include <OpenGLES/ES2/gl.h>
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	30 #include <OpenGLES/ES2/glext.h>
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	31 #else
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	32 #include <GLES2/gl2.h>
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	33 #include <GLES2/gl2ext.h>
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	34 #endif
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	35 #include "../SDL_sysrender.h"
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	36 #include "SDL_shaders_gles2.h"
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	37
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	38 /*************************************************************************************************
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	39 * Bootstrap data *
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	40 *************************************************************************************************/
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	41
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	42 static SDL_Renderer GLES2_CreateRenderer(SDL_Window window, Uint32 flags);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	43
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	44 SDL_RenderDriver GLES2_RenderDriver = {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	45 GLES2_CreateRenderer,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	46 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	47 "opengles2",
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	48 (SDL_RENDERER_ACCELERATED \| SDL_RENDERER_PRESENTVSYNC),
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	49 #if GLES2_ASSUME_BGRA
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	50 11,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	51 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	52 SDL_PIXELFORMAT_ABGR8888,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	53 SDL_PIXELFORMAT_ABGR4444,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	54 SDL_PIXELFORMAT_ABGR1555,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	55 SDL_PIXELFORMAT_BGR565,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	56 SDL_PIXELFORMAT_BGR24,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	57 SDL_PIXELFORMAT_ARGB8888,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	58 SDL_PIXELFORMAT_ARGB4444,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	59 SDL_PIXELFORMAT_ARGB1555,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	60 SDL_PIXELFORMAT_RGB565,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	61 SDL_PIXELFORMAT_RGB24
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	62 },
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	63 #elif GLES2_ASSUME_BGRA8888
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	64 7,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	65 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	66 SDL_PIXELFORMAT_ABGR8888,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	67 SDL_PIXELFORMAT_ABGR4444,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	68 SDL_PIXELFORMAT_ABGR1555,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	69 SDL_PIXELFORMAT_BGR565,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	70 SDL_PIXELFORMAT_BGR24,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	71 SDL_PIXELFORMAT_ARGB8888
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	72 },
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	73 #else
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	74 6,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	75 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	76 SDL_PIXELFORMAT_ABGR8888,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	77 SDL_PIXELFORMAT_ABGR4444,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	78 SDL_PIXELFORMAT_ABGR1555,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	79 SDL_PIXELFORMAT_BGR565,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	80 SDL_PIXELFORMAT_BGR24
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	81 },
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	82 #endif
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	83 0,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	84 0
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	85 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	86 };
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	87
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	88 /*************************************************************************************************
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	89 * Context structures *
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	90 *************************************************************************************************/
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	91
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	92 typedef struct GLES2_TextureData
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	93 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	94 GLenum texture;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	95 GLenum texture_type;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	96 GLenum pixel_format;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	97 GLenum pixel_type;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	98 void *pixel_data;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	99 size_t pitch;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	100 } GLES2_TextureData;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	101
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	102 typedef struct GLES2_ShaderCacheEntry
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	103 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	104 GLuint id;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	105 GLES2_ShaderType type;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	106 const GLES2_ShaderInstance *instance;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	107 int references;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	108 struct GLES2_ShaderCacheEntry *prev;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	109 struct GLES2_ShaderCacheEntry *next;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	110 } GLES2_ShaderCacheEntry;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	111
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	112 typedef struct GLES2_ShaderCache
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	113 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	114 int count;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	115 GLES2_ShaderCacheEntry *head;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	116 } GLES2_ShaderCache;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	117
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	118 typedef struct GLES2_ProgramCacheEntry
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	119 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	120 GLuint id;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	121 SDL_BlendMode blend_mode;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	122 GLES2_ShaderCacheEntry *vertex_shader;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	123 GLES2_ShaderCacheEntry *fragment_shader;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	124 GLuint uniform_locations[16];
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	125 struct GLES2_ProgramCacheEntry *prev;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	126 struct GLES2_ProgramCacheEntry *next;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	127 } GLES2_ProgramCacheEntry;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	128
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	129 typedef struct GLES2_ProgramCache
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	130 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	131 int count;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	132 GLES2_ProgramCacheEntry *head;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	133 GLES2_ProgramCacheEntry *tail;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	134 } GLES2_ProgramCache;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	135
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	136 typedef enum
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	137 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	138 GLES2_ATTRIBUTE_POSITION = 0,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	139 GLES2_ATTRIBUTE_TEXCOORD = 1
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	140 } GLES2_Attribute;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	141
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	142 typedef enum
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	143 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	144 GLES2_UNIFORM_PROJECTION,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	145 GLES2_UNIFORM_TEXTURE,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	146 GLES2_UNIFORM_MODULATION,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	147 GLES2_UNIFORM_COLOR,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	148 GLES2_UNIFORM_COLORTABLE
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	149 } GLES2_Uniform;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	150
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	151 typedef enum
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	152 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	153 GLES2_IMAGESOURCE_SOLID,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	154 GLES2_IMAGESOURCE_TEXTURE
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	155 } GLES2_ImageSource;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	156
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	157 typedef struct GLES2_DriverContext
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	158 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	159 SDL_GLContext *context;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	160 int shader_format_count;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	161 GLenum *shader_formats;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	162 GLES2_ShaderCache shader_cache;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	163 GLES2_ProgramCache program_cache;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	164 GLES2_ProgramCacheEntry *current_program;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	165 SDL_bool updateSize;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	166 } GLES2_DriverContext;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	167
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	168 #define GLES2_MAX_CACHED_PROGRAMS 8
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	169
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	170 /*************************************************************************************************
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	171 * Renderer state APIs *
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	172 *************************************************************************************************/
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	173
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	174 static void GLES2_WindowEvent(SDL_Renderer * renderer,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	175 const SDL_WindowEvent *event);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	176 static int GLES2_ActivateRenderer(SDL_Renderer *renderer);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	177 static int GLES2_DisplayModeChanged(SDL_Renderer *renderer);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	178 static void GLES2_DestroyRenderer(SDL_Renderer *renderer);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	179
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	180 static SDL_GLContext SDL_CurrentContext = NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	181
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	182 static int
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	183 GLES2_ActivateRenderer(SDL_Renderer * renderer)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	184 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	185 GLES2_DriverContext rdata = (GLES2_DriverContext )renderer->driverdata;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	186 SDL_Window *window = renderer->window;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	187
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	188 if (SDL_CurrentContext != rdata->context) {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	189 /* Null out the current program to ensure we set it again */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	190 rdata->current_program = NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	191
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	192 if (SDL_GL_MakeCurrent(window, rdata->context) < 0) {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	193 return -1;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	194 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	195 SDL_CurrentContext = rdata->context;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	196 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	197 if (rdata->updateSize) {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	198 int w, h;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	199
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	200 SDL_GetWindowSize(window, &w, &h);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	201 glViewport(0, 0, w, h);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	202 rdata->updateSize = SDL_FALSE;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	203 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	204 return 0;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	205 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	206
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	207 static void
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	208 GLES2_WindowEvent(SDL_Renderer * renderer, const SDL_WindowEvent *event)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	209 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	210 GLES2_DriverContext rdata = (GLES2_DriverContext )renderer->driverdata;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	211
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	212 if (event->event == SDL_WINDOWEVENT_RESIZED) {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	213 /* Rebind the context to the window area */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	214 SDL_CurrentContext = NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	215 rdata->updateSize = SDL_TRUE;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	216 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	217 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	218
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	219 static void
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	220 GLES2_DestroyRenderer(SDL_Renderer *renderer)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	221 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	222 GLES2_DriverContext rdata = (GLES2_DriverContext )renderer->driverdata;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	223 GLES2_ProgramCacheEntry *entry;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	224 GLES2_ProgramCacheEntry *next;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	225
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	226 GLES2_ActivateRenderer(renderer);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	227
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	228 /* Deallocate everything */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	229 entry = rdata->program_cache.head;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	230 while (entry)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	231 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	232 glDeleteShader(entry->vertex_shader->id);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	233 glDeleteShader(entry->fragment_shader->id);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	234 SDL_free(entry->vertex_shader);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	235 SDL_free(entry->fragment_shader);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	236 glDeleteProgram(entry->id);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	237 next = entry->next;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	238 SDL_free(entry);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	239 entry = next;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	240 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	241 SDL_GL_DeleteContext(rdata->context);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	242 SDL_free(rdata->shader_formats);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	243 SDL_free(renderer->driverdata);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	244 SDL_free(renderer);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	245 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	246
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	247 /*************************************************************************************************
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	248 * Texture APIs *
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	249 *************************************************************************************************/
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	250
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	251 #define GL_BGR_EXT 0x80E0
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	252 #define GL_BGRA_EXT 0x80E1
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	253
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	254 static int GLES2_CreateTexture(SDL_Renderer renderer, SDL_Texture texture);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	255 static void GLES2_DestroyTexture(SDL_Renderer renderer, SDL_Texture texture);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	256 static int GLES2_LockTexture(SDL_Renderer renderer, SDL_Texture texture, const SDL_Rect *rect,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	257 void *pixels, int pitch);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	258 static void GLES2_UnlockTexture(SDL_Renderer renderer, SDL_Texture texture);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	259 static int GLES2_UpdateTexture(SDL_Renderer renderer, SDL_Texture texture, const SDL_Rect *rect,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	260 const void *pixels, int pitch);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	261
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	262 static int
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	263 GLES2_CreateTexture(SDL_Renderer renderer, SDL_Texture texture)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	264 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	265 GLES2_DriverContext rdata = (GLES2_DriverContext )renderer->driverdata;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	266 GLES2_TextureData *tdata;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	267 GLenum format;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	268 GLenum type;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	269
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	270 GLES2_ActivateRenderer(renderer);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	271
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	272 /* Determine the corresponding GLES texture format params */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	273 switch (texture->format)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	274 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	275 case SDL_PIXELFORMAT_BGR24:
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	276 format = GL_RGB;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	277 type = GL_UNSIGNED_BYTE;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	278 break;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	279 case SDL_PIXELFORMAT_ABGR8888:
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	280 format = GL_RGBA;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	281 type = GL_UNSIGNED_BYTE;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	282 break;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	283 case SDL_PIXELFORMAT_BGR565:
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	284 format = GL_RGB;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	285 type = GL_UNSIGNED_SHORT_5_6_5;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	286 break;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	287 case SDL_PIXELFORMAT_ABGR1555:
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	288 format = GL_RGBA;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	289 type = GL_UNSIGNED_SHORT_5_5_5_1;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	290 break;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	291 case SDL_PIXELFORMAT_ABGR4444:
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	292 format = GL_RGBA;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	293 type = GL_UNSIGNED_SHORT_4_4_4_4;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	294 break;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	295 #if GLES2_ASSUME_BGRA \|\| GLES2_ASSUME_BGRA8888
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	296 case SDL_PIXELFORMAT_ARGB8888:
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	297 format = GL_BGRA_EXT;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	298 type = GL_UNSIGNED_BYTE;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	299 break;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	300 #endif /* GLES2_ASSUME_BGRA \|\| GLES2_ASSUME_BGRA8888 */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	301 #if GLES2_ASSUME_BGRA
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	302 case SDL_PIXELFORMAT_RGB24:
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	303 format = GL_BGR_EXT;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	304 type = GL_UNSIGNED_BYTE;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	305 break;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	306 case SDL_PIXELFORMAT_RGB565:
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	307 format = GL_BGR_EXT;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	308 type = GL_UNSIGNED_SHORT_5_6_5;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	309 break;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	310 case SDL_PIXELFORMAT_ARGB1555:
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	311 format = GL_BGRA_EXT;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	312 type = GL_UNSIGNED_SHORT_5_5_5_1;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	313 break;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	314 case SDL_PIXELFORMAT_ARGB4444:
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	315 format = GL_BGRA_EXT;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	316 type = GL_UNSIGNED_SHORT_4_4_4_4;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	317 break;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	318 #endif /* GLES2_ASSUME_BGRA */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	319 default:
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	320 SDL_SetError("Texture format not supported");
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	321 return -1;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	322 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	323
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	324 /* Allocate a texture struct */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	325 tdata = (GLES2_TextureData *)SDL_calloc(1, sizeof(GLES2_TextureData));
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	326 if (!tdata)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	327 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	328 SDL_OutOfMemory();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	329 return -1;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	330 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	331 tdata->texture = 0;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	332 tdata->texture_type = GL_TEXTURE_2D;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	333 tdata->pixel_format = format;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	334 tdata->pixel_type = type;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	335
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	336 /* Allocate a blob for image data */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	337 if (texture->access == SDL_TEXTUREACCESS_STREAMING)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	338 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	339 tdata->pitch = texture->w * SDL_BYTESPERPIXEL(texture->format);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	340 tdata->pixel_data = SDL_malloc(tdata->pitch * texture->h);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	341 if (!tdata->pixel_data)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	342 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	343 SDL_OutOfMemory();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	344 SDL_free(tdata);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	345 return -1;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	346 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	347 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	348
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	349 /* Allocate the texture */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	350 glGetError();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	351 glGenTextures(1, &tdata->texture);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	352 glActiveTexture(GL_TEXTURE0);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	353 glBindTexture(tdata->texture_type, tdata->texture);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	354 glTexParameteri(tdata->texture_type, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	355 glTexParameteri(tdata->texture_type, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	356 glTexParameteri(tdata->texture_type, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	357 glTexParameteri(tdata->texture_type, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	358 glTexImage2D(tdata->texture_type, 0, format, texture->w, texture->h, 0, format, type, NULL);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	359 if (glGetError() != GL_NO_ERROR)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	360 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	361 SDL_SetError("Texture creation failed");
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	362 glDeleteTextures(1, &tdata->texture);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	363 SDL_free(tdata);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	364 return -1;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	365 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	366 texture->driverdata = tdata;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	367 return 0;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	368 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	369
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	370 static void
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	371 GLES2_DestroyTexture(SDL_Renderer renderer, SDL_Texture texture)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	372 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	373 GLES2_TextureData tdata = (GLES2_TextureData )texture->driverdata;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	374
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	375 GLES2_ActivateRenderer(renderer);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	376
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	377 /* Destroy the texture */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	378 if (tdata)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	379 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	380 glDeleteTextures(1, &tdata->texture);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	381 SDL_free(tdata->pixel_data);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	382 SDL_free(tdata);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	383 texture->driverdata = NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	384 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	385 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	386
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	387 static int
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	388 GLES2_LockTexture(SDL_Renderer renderer, SDL_Texture texture, const SDL_Rect *rect,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	389 void *pixels, int pitch)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	390 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	391 GLES2_TextureData tdata = (GLES2_TextureData )texture->driverdata;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	392
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	393 /* Retrieve the buffer/pitch for the specified region */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	394 pixels = (Uint8 )tdata->pixel_data +
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	395 (tdata->pitch * rect->y) +
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	396 (rect->x * SDL_BYTESPERPIXEL(texture->format));
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	397 *pitch = tdata->pitch;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	398
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	399 return 0;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	400 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	401
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	402 static void
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	403 GLES2_UnlockTexture(SDL_Renderer renderer, SDL_Texture texture)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	404 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	405 GLES2_TextureData tdata = (GLES2_TextureData )texture->driverdata;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	406
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	407 GLES2_ActivateRenderer(renderer);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	408
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	409 glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	410 glActiveTexture(GL_TEXTURE0);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	411 glBindTexture(tdata->texture_type, tdata->texture);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	412 glTexSubImage2D(tdata->texture_type, 0, 0, 0, texture->w, texture->h,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	413 tdata->pixel_format, tdata->pixel_type, tdata->pixel_data);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	414 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	415
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	416 static int
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	417 GLES2_UpdateTexture(SDL_Renderer renderer, SDL_Texture texture, const SDL_Rect *rect,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	418 const void *pixels, int pitch)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	419 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	420 GLES2_TextureData tdata = (GLES2_TextureData )texture->driverdata;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	421 Uint8 *blob = NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	422 Uint8 *src;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	423 int srcPitch;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	424 Uint8 *dest;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	425 int y;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	426
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	427 GLES2_ActivateRenderer(renderer);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	428
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	429 /* Bail out if we're supposed to update an empty rectangle */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	430 if (rect->w <= 0 \|\| rect->h <= 0)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	431 return 0;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	432
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	433 /* Reformat the texture data into a tightly packed array */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	434 srcPitch = rect->w * SDL_BYTESPERPIXEL(texture->format);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	435 src = (Uint8 *)pixels;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	436 if (pitch != srcPitch)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	437 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	438 blob = (Uint8 )SDL_malloc(srcPitch rect->h);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	439 if (!blob)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	440 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	441 SDL_OutOfMemory();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	442 return -1;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	443 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	444 src = blob;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	445 for (y = 0; y < rect->h; ++y)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	446 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	447 SDL_memcpy(src, pixels, srcPitch);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	448 src += srcPitch;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	449 pixels = (Uint8 *)pixels + pitch;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	450 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	451 src = blob;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	452 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	453
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	454 /* Create a texture subimage with the supplied data */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	455 glGetError();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	456 glActiveTexture(GL_TEXTURE0);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	457 glBindTexture(tdata->texture_type, tdata->texture);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	458 glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	459 glTexSubImage2D(tdata->texture_type,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	460 0,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	461 rect->x,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	462 rect->y,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	463 rect->w,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	464 rect->h,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	465 tdata->pixel_format,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	466 tdata->pixel_type,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	467 src);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	468 if (glGetError() != GL_NO_ERROR)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	469 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	470 SDL_SetError("Failed to update texture");
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	471 return -1;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	472 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	473
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	474 /* Update the (streaming) texture buffer, in one pass if possible */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	475 if (tdata->pixel_data)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	476 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	477 dest = (Uint8 *)tdata->pixel_data +
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	478 (tdata->pitch * rect->y) +
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	479 (SDL_BYTESPERPIXEL(texture->format) * rect->x);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	480 if (rect->w == texture->w)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	481 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	482 SDL_memcpy(dest, src, srcPitch * rect->h);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	483 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	484 else
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	485 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	486 for (y = 0; y < rect->h; ++y)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	487 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	488 SDL_memcpy(dest, src, srcPitch);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	489 src += srcPitch;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	490 dest += tdata->pitch;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	491 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	492 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	493 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	494
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	495 /* Clean up and return */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	496 SDL_free(blob);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	497 return 0;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	498 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	499
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	500 /*************************************************************************************************

5204

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1 /*

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

2 SDL - Simple DirectMedia Layer

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

4

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

5 Permission is hereby granted, free of charge, to any person obtaining a

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

6 copy of this software and associated documentation files (the "Software"),

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

7 to deal in the Software without restriction, including without limitation

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

8 the rights to use, copy, modify, merge, publish, distribute, sublicense,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

9 and/or sell copies of the Software, and to permit persons to whom the

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

10 Software is furnished to do so, subject to the following conditions:

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

11

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

12 The above copyright notice and this permission notice shall be included in

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

13 all copies or substantial portions of the Software.

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

14

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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parents:

diff changeset

16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

20 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

21 DEALINGS IN THE SOFTWARE.

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

22 */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

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diff changeset

23

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

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diff changeset

24 #include "SDL_config.h"

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

25

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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parents:

diff changeset

26 #if SDL_VIDEO_RENDER_OGL_ES2

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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27

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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28 #ifdef __IPHONEOS__

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29 #include <OpenGLES/ES2/gl.h>

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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30 #include <OpenGLES/ES2/glext.h>

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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diff changeset

31 #else

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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diff changeset

32 #include <GLES2/gl2.h>

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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33 #include <GLES2/gl2ext.h>

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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diff changeset

34 #endif

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

35 #include "../SDL_sysrender.h"

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

36 #include "SDL_shaders_gles2.h"

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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37

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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38 /*************************************************************************************************

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

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diff changeset

39 * Bootstrap data *

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

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diff changeset

40 *************************************************************************************************/

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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diff changeset

41

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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diff changeset

42 static SDL_Renderer *GLES2_CreateRenderer(SDL_Window *window, Uint32 flags);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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43

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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diff changeset

44 SDL_RenderDriver GLES2_RenderDriver = {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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diff changeset

45 GLES2_CreateRenderer,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

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diff changeset

46 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

47 "opengles2",

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

48 (SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC),

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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diff changeset

49 #if GLES2_ASSUME_BGRA

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50 11,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

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diff changeset

51 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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diff changeset

52 SDL_PIXELFORMAT_ABGR8888,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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diff changeset

53 SDL_PIXELFORMAT_ABGR4444,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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54 SDL_PIXELFORMAT_ABGR1555,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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55 SDL_PIXELFORMAT_BGR565,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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diff changeset

56 SDL_PIXELFORMAT_BGR24,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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diff changeset

57 SDL_PIXELFORMAT_ARGB8888,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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diff changeset

58 SDL_PIXELFORMAT_ARGB4444,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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diff changeset

59 SDL_PIXELFORMAT_ARGB1555,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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diff changeset

60 SDL_PIXELFORMAT_RGB565,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

61 SDL_PIXELFORMAT_RGB24

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

62 },

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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parents:

diff changeset

63 #elif GLES2_ASSUME_BGRA8888

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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diff changeset

64 7,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

65 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

66 SDL_PIXELFORMAT_ABGR8888,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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parents:

diff changeset

67 SDL_PIXELFORMAT_ABGR4444,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

68 SDL_PIXELFORMAT_ABGR1555,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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diff changeset

69 SDL_PIXELFORMAT_BGR565,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

70 SDL_PIXELFORMAT_BGR24,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

71 SDL_PIXELFORMAT_ARGB8888

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

72 },

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

73 #else

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

74 6,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

75 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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parents:

diff changeset

76 SDL_PIXELFORMAT_ABGR8888,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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parents:

diff changeset

77 SDL_PIXELFORMAT_ABGR4444,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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parents:

diff changeset

78 SDL_PIXELFORMAT_ABGR1555,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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parents:

diff changeset

79 SDL_PIXELFORMAT_BGR565,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

80 SDL_PIXELFORMAT_BGR24

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

81 },

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

82 #endif

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

83 0,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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parents:

diff changeset

84 0

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

85 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

86 };

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

87

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

88 /*************************************************************************************************

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89 * Context structures *

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90 *************************************************************************************************/

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91

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92 typedef struct GLES2_TextureData

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93 {

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94 GLenum texture;

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95 GLenum texture_type;

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96 GLenum pixel_format;

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97 GLenum pixel_type;

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98 void *pixel_data;

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99 size_t pitch;

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100 } GLES2_TextureData;

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101

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102 typedef struct GLES2_ShaderCacheEntry

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103 {

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104 GLuint id;

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105 GLES2_ShaderType type;

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106 const GLES2_ShaderInstance *instance;

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107 int references;

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108 struct GLES2_ShaderCacheEntry *prev;

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109 struct GLES2_ShaderCacheEntry *next;

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110 } GLES2_ShaderCacheEntry;

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111

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112 typedef struct GLES2_ShaderCache

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113 {

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114 int count;

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115 GLES2_ShaderCacheEntry *head;

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116 } GLES2_ShaderCache;

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117

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118 typedef struct GLES2_ProgramCacheEntry

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119 {

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120 GLuint id;

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121 SDL_BlendMode blend_mode;

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122 GLES2_ShaderCacheEntry *vertex_shader;

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123 GLES2_ShaderCacheEntry *fragment_shader;

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124 GLuint uniform_locations[16];

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125 struct GLES2_ProgramCacheEntry *prev;

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126 struct GLES2_ProgramCacheEntry *next;

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127 } GLES2_ProgramCacheEntry;

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128

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129 typedef struct GLES2_ProgramCache

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130 {

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131 int count;

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132 GLES2_ProgramCacheEntry *head;

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133 GLES2_ProgramCacheEntry *tail;

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134 } GLES2_ProgramCache;

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135

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136 typedef enum

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137 {

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138 GLES2_ATTRIBUTE_POSITION = 0,

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139 GLES2_ATTRIBUTE_TEXCOORD = 1

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140 } GLES2_Attribute;

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141

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142 typedef enum

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143 {

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144 GLES2_UNIFORM_PROJECTION,

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145 GLES2_UNIFORM_TEXTURE,

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146 GLES2_UNIFORM_MODULATION,

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147 GLES2_UNIFORM_COLOR,

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148 GLES2_UNIFORM_COLORTABLE

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149 } GLES2_Uniform;

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150

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151 typedef enum

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152 {

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153 GLES2_IMAGESOURCE_SOLID,

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154 GLES2_IMAGESOURCE_TEXTURE

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155 } GLES2_ImageSource;

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156

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157 typedef struct GLES2_DriverContext

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158 {

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159 SDL_GLContext *context;

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160 int shader_format_count;

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161 GLenum *shader_formats;

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162 GLES2_ShaderCache shader_cache;

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163 GLES2_ProgramCache program_cache;

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164 GLES2_ProgramCacheEntry *current_program;

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165 SDL_bool updateSize;

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166 } GLES2_DriverContext;

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167

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168 #define GLES2_MAX_CACHED_PROGRAMS 8

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169

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170 /*************************************************************************************************

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171 * Renderer state APIs *

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172 *************************************************************************************************/

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173

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174 static void GLES2_WindowEvent(SDL_Renderer * renderer,

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175 const SDL_WindowEvent *event);

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176 static int GLES2_ActivateRenderer(SDL_Renderer *renderer);

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177 static int GLES2_DisplayModeChanged(SDL_Renderer *renderer);

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178 static void GLES2_DestroyRenderer(SDL_Renderer *renderer);

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179

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180 static SDL_GLContext SDL_CurrentContext = NULL;

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181

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182 static int

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183 GLES2_ActivateRenderer(SDL_Renderer * renderer)

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184 {

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185 GLES2_DriverContext *rdata = (GLES2_DriverContext *)renderer->driverdata;

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186 SDL_Window *window = renderer->window;

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187

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188 if (SDL_CurrentContext != rdata->context) {

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189 /* Null out the current program to ensure we set it again */

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190 rdata->current_program = NULL;

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191

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192 if (SDL_GL_MakeCurrent(window, rdata->context) < 0) {

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193 return -1;

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194 }

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195 SDL_CurrentContext = rdata->context;

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196 }

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197 if (rdata->updateSize) {

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198 int w, h;

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199

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200 SDL_GetWindowSize(window, &w, &h);

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201 glViewport(0, 0, w, h);

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202 rdata->updateSize = SDL_FALSE;

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203 }

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204 return 0;

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205 }

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206

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207 static void

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208 GLES2_WindowEvent(SDL_Renderer * renderer, const SDL_WindowEvent *event)

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209 {

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210 GLES2_DriverContext *rdata = (GLES2_DriverContext *)renderer->driverdata;

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211

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212 if (event->event == SDL_WINDOWEVENT_RESIZED) {

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213 /* Rebind the context to the window area */

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214 SDL_CurrentContext = NULL;

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215 rdata->updateSize = SDL_TRUE;

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216 }

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217 }

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218

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219 static void

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220 GLES2_DestroyRenderer(SDL_Renderer *renderer)

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221 {

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222 GLES2_DriverContext *rdata = (GLES2_DriverContext *)renderer->driverdata;

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223 GLES2_ProgramCacheEntry *entry;

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224 GLES2_ProgramCacheEntry *next;

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diff changeset

225

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226 GLES2_ActivateRenderer(renderer);

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diff changeset

227

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diff changeset

228 /* Deallocate everything */

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diff changeset

229 entry = rdata->program_cache.head;

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diff changeset

230 while (entry)

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diff changeset

231 {

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diff changeset

232 glDeleteShader(entry->vertex_shader->id);

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diff changeset

233 glDeleteShader(entry->fragment_shader->id);

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diff changeset

234 SDL_free(entry->vertex_shader);

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diff changeset

235 SDL_free(entry->fragment_shader);

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diff changeset

236 glDeleteProgram(entry->id);

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diff changeset

237 next = entry->next;

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diff changeset

238 SDL_free(entry);

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diff changeset

239 entry = next;

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diff changeset

240 }

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diff changeset

241 SDL_GL_DeleteContext(rdata->context);

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242 SDL_free(rdata->shader_formats);

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diff changeset

243 SDL_free(renderer->driverdata);

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diff changeset

244 SDL_free(renderer);

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diff changeset

245 }

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diff changeset

246

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diff changeset

247 /*************************************************************************************************

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diff changeset

248 * Texture APIs *

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diff changeset

249 *************************************************************************************************/

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250

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251 #define GL_BGR_EXT 0x80E0

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252 #define GL_BGRA_EXT 0x80E1

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253

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254 static int GLES2_CreateTexture(SDL_Renderer *renderer, SDL_Texture *texture);

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255 static void GLES2_DestroyTexture(SDL_Renderer *renderer, SDL_Texture *texture);

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256 static int GLES2_LockTexture(SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect *rect,

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257 void **pixels, int *pitch);

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258 static void GLES2_UnlockTexture(SDL_Renderer *renderer, SDL_Texture *texture);

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259 static int GLES2_UpdateTexture(SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect *rect,

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diff changeset

260 const void *pixels, int pitch);

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diff changeset

261

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diff changeset

262 static int

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263 GLES2_CreateTexture(SDL_Renderer *renderer, SDL_Texture *texture)

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diff changeset

264 {

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265 GLES2_DriverContext *rdata = (GLES2_DriverContext *)renderer->driverdata;

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266 GLES2_TextureData *tdata;

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diff changeset

267 GLenum format;

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diff changeset

268 GLenum type;

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diff changeset

269

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270 GLES2_ActivateRenderer(renderer);

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diff changeset

271

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diff changeset

272 /* Determine the corresponding GLES texture format params */

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273 switch (texture->format)

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diff changeset

274 {

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275 case SDL_PIXELFORMAT_BGR24:

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276 format = GL_RGB;

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277 type = GL_UNSIGNED_BYTE;

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278 break;

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279 case SDL_PIXELFORMAT_ABGR8888:

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280 format = GL_RGBA;

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diff changeset

281 type = GL_UNSIGNED_BYTE;

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diff changeset

282 break;

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283 case SDL_PIXELFORMAT_BGR565:

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diff changeset

284 format = GL_RGB;

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285 type = GL_UNSIGNED_SHORT_5_6_5;

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diff changeset

286 break;

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287 case SDL_PIXELFORMAT_ABGR1555:

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diff changeset

288 format = GL_RGBA;

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289 type = GL_UNSIGNED_SHORT_5_5_5_1;

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290 break;

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291 case SDL_PIXELFORMAT_ABGR4444:

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292 format = GL_RGBA;

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293 type = GL_UNSIGNED_SHORT_4_4_4_4;

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294 break;

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295 #if GLES2_ASSUME_BGRA || GLES2_ASSUME_BGRA8888

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296 case SDL_PIXELFORMAT_ARGB8888:

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297 format = GL_BGRA_EXT;

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298 type = GL_UNSIGNED_BYTE;

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299 break;

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diff changeset

300 #endif /* GLES2_ASSUME_BGRA || GLES2_ASSUME_BGRA8888 */

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diff changeset

301 #if GLES2_ASSUME_BGRA

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diff changeset

302 case SDL_PIXELFORMAT_RGB24:

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diff changeset

303 format = GL_BGR_EXT;

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diff changeset

304 type = GL_UNSIGNED_BYTE;

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diff changeset

305 break;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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diff changeset

306 case SDL_PIXELFORMAT_RGB565:

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diff changeset

307 format = GL_BGR_EXT;

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diff changeset

308 type = GL_UNSIGNED_SHORT_5_6_5;

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diff changeset

309 break;

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diff changeset

310 case SDL_PIXELFORMAT_ARGB1555:

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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diff changeset

311 format = GL_BGRA_EXT;

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diff changeset

312 type = GL_UNSIGNED_SHORT_5_5_5_1;

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diff changeset

313 break;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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diff changeset

314 case SDL_PIXELFORMAT_ARGB4444:

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diff changeset

315 format = GL_BGRA_EXT;

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diff changeset

316 type = GL_UNSIGNED_SHORT_4_4_4_4;

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diff changeset

317 break;

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diff changeset

318 #endif /* GLES2_ASSUME_BGRA */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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diff changeset

319 default:

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diff changeset

320 SDL_SetError("Texture format not supported");

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diff changeset

321 return -1;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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diff changeset

322 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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diff changeset

323

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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diff changeset

324 /* Allocate a texture struct */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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diff changeset

325 tdata = (GLES2_TextureData *)SDL_calloc(1, sizeof(GLES2_TextureData));

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diff changeset

326 if (!tdata)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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diff changeset

327 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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diff changeset

328 SDL_OutOfMemory();

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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diff changeset

329 return -1;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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parents:

diff changeset

330 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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diff changeset

331 tdata->texture = 0;

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diff changeset

332 tdata->texture_type = GL_TEXTURE_2D;

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parents:

diff changeset

333 tdata->pixel_format = format;

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parents:

diff changeset

334 tdata->pixel_type = type;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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parents:

diff changeset

335

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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parents:

diff changeset

336 /* Allocate a blob for image data */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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diff changeset

337 if (texture->access == SDL_TEXTUREACCESS_STREAMING)

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parents:

diff changeset

338 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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diff changeset

339 tdata->pitch = texture->w * SDL_BYTESPERPIXEL(texture->format);

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diff changeset

340 tdata->pixel_data = SDL_malloc(tdata->pitch * texture->h);

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parents:

diff changeset

341 if (!tdata->pixel_data)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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parents:

diff changeset

342 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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diff changeset

343 SDL_OutOfMemory();

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diff changeset

344 SDL_free(tdata);

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diff changeset

345 return -1;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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diff changeset

346 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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diff changeset

347 }

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diff changeset

348

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diff changeset

349 /* Allocate the texture */

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parents:

diff changeset

350 glGetError();

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diff changeset

351 glGenTextures(1, &tdata->texture);

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parents:

diff changeset

352 glActiveTexture(GL_TEXTURE0);

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parents:

diff changeset

353 glBindTexture(tdata->texture_type, tdata->texture);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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parents:

diff changeset

354 glTexParameteri(tdata->texture_type, GL_TEXTURE_MIN_FILTER, GL_LINEAR);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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parents:

diff changeset

355 glTexParameteri(tdata->texture_type, GL_TEXTURE_MAG_FILTER, GL_LINEAR);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

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parents:

diff changeset

356 glTexParameteri(tdata->texture_type, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

357 glTexParameteri(tdata->texture_type, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

358 glTexImage2D(tdata->texture_type, 0, format, texture->w, texture->h, 0, format, type, NULL);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

359 if (glGetError() != GL_NO_ERROR)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

360 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

361 SDL_SetError("Texture creation failed");

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

362 glDeleteTextures(1, &tdata->texture);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

363 SDL_free(tdata);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

364 return -1;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

365 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

366 texture->driverdata = tdata;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

367 return 0;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

368 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

369

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

370 static void

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

371 GLES2_DestroyTexture(SDL_Renderer *renderer, SDL_Texture *texture)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

372 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

373 GLES2_TextureData *tdata = (GLES2_TextureData *)texture->driverdata;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

374

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

375 GLES2_ActivateRenderer(renderer);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

376

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

377 /* Destroy the texture */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

378 if (tdata)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

379 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

380 glDeleteTextures(1, &tdata->texture);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

381 SDL_free(tdata->pixel_data);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

382 SDL_free(tdata);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

383 texture->driverdata = NULL;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

384 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

385 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

386

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

387 static int

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

388 GLES2_LockTexture(SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect *rect,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

389 void **pixels, int *pitch)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

390 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

391 GLES2_TextureData *tdata = (GLES2_TextureData *)texture->driverdata;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

392

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

393 /* Retrieve the buffer/pitch for the specified region */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

394 *pixels = (Uint8 *)tdata->pixel_data +

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

395 (tdata->pitch * rect->y) +

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

396 (rect->x * SDL_BYTESPERPIXEL(texture->format));

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

397 *pitch = tdata->pitch;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

398

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

399 return 0;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

400 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

401

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

402 static void

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

403 GLES2_UnlockTexture(SDL_Renderer *renderer, SDL_Texture *texture)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

404 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

405 GLES2_TextureData *tdata = (GLES2_TextureData *)texture->driverdata;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

406

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

407 GLES2_ActivateRenderer(renderer);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

408

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

409 glPixelStorei(GL_UNPACK_ALIGNMENT, 1);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

410 glActiveTexture(GL_TEXTURE0);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

411 glBindTexture(tdata->texture_type, tdata->texture);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

412 glTexSubImage2D(tdata->texture_type, 0, 0, 0, texture->w, texture->h,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

413 tdata->pixel_format, tdata->pixel_type, tdata->pixel_data);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

414 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

415

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

416 static int

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

417 GLES2_UpdateTexture(SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect *rect,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

418 const void *pixels, int pitch)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

419 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

420 GLES2_TextureData *tdata = (GLES2_TextureData *)texture->driverdata;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

421 Uint8 *blob = NULL;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

422 Uint8 *src;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

423 int srcPitch;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

424 Uint8 *dest;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

425 int y;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

426

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

427 GLES2_ActivateRenderer(renderer);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

428

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

429 /* Bail out if we're supposed to update an empty rectangle */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

430 if (rect->w <= 0 || rect->h <= 0)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

431 return 0;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

432

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

433 /* Reformat the texture data into a tightly packed array */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

434 srcPitch = rect->w * SDL_BYTESPERPIXEL(texture->format);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

435 src = (Uint8 *)pixels;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

436 if (pitch != srcPitch)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

437 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

438 blob = (Uint8 *)SDL_malloc(srcPitch * rect->h);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

439 if (!blob)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

440 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

441 SDL_OutOfMemory();

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

442 return -1;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

443 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

444 src = blob;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

445 for (y = 0; y < rect->h; ++y)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

446 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

447 SDL_memcpy(src, pixels, srcPitch);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

448 src += srcPitch;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

449 pixels = (Uint8 *)pixels + pitch;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

450 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

451 src = blob;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

452 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

453

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

454 /* Create a texture subimage with the supplied data */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

455 glGetError();

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

456 glActiveTexture(GL_TEXTURE0);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

457 glBindTexture(tdata->texture_type, tdata->texture);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

458 glPixelStorei(GL_UNPACK_ALIGNMENT, 1);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

459 glTexSubImage2D(tdata->texture_type,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

460 0,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

461 rect->x,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

462 rect->y,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

463 rect->w,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

464 rect->h,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

465 tdata->pixel_format,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

466 tdata->pixel_type,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

467 src);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

468 if (glGetError() != GL_NO_ERROR)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

469 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

470 SDL_SetError("Failed to update texture");

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

471 return -1;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

472 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

473

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

474 /* Update the (streaming) texture buffer, in one pass if possible */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

475 if (tdata->pixel_data)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

476 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

477 dest = (Uint8 *)tdata->pixel_data +

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

478 (tdata->pitch * rect->y) +

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

479 (SDL_BYTESPERPIXEL(texture->format) * rect->x);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

480 if (rect->w == texture->w)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

481 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

482 SDL_memcpy(dest, src, srcPitch * rect->h);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

483 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

484 else

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

485 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

486 for (y = 0; y < rect->h; ++y)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

487 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

488 SDL_memcpy(dest, src, srcPitch);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

489 src += srcPitch;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

490 dest += tdata->pitch;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

491 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

492 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

493 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

494

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

495 /* Clean up and return */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

496 SDL_free(blob);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

497 return 0;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

498 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

499

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

500 /*************************************************************************************************

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

501 * Shader management functions *

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

502 *************************************************************************************************/

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

503

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

504 static GLES2_ShaderCacheEntry *GLES2_CacheShader(SDL_Renderer *renderer, GLES2_ShaderType type,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

505 SDL_BlendMode blendMode);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

506 static void GLES2_EvictShader(SDL_Renderer *renderer, GLES2_ShaderCacheEntry *entry);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

507 static GLES2_ProgramCacheEntry *GLES2_CacheProgram(SDL_Renderer *renderer,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

508 GLES2_ShaderCacheEntry *vertex,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

509 GLES2_ShaderCacheEntry *fragment,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

510 SDL_BlendMode blendMode);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

511 static int GLES2_SelectProgram(SDL_Renderer *renderer, GLES2_ImageSource source,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

512 SDL_BlendMode blendMode);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

513 static int GLES2_SetOrthographicProjection(SDL_Renderer *renderer);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

514

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

515 static GLES2_ProgramCacheEntry *

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

516 GLES2_CacheProgram(SDL_Renderer *renderer, GLES2_ShaderCacheEntry *vertex,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

517 GLES2_ShaderCacheEntry *fragment, SDL_BlendMode blendMode)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

518 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

519 GLES2_DriverContext *rdata = (GLES2_DriverContext *)renderer->driverdata;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

520 GLES2_ProgramCacheEntry *entry;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

521 GLES2_ShaderCacheEntry *shaderEntry;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

522 GLint linkSuccessful;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

523

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

524 /* Check if we've already cached this program */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

525 entry = rdata->program_cache.head;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

526 while (entry)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

527 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

528 if (entry->vertex_shader == vertex && entry->fragment_shader == fragment)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

529 break;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

530 entry = entry->next;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

531 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

532 if (entry)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

533 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

534 if (rdata->program_cache.count > 1)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

535 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

536 if (entry->next)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

537 entry->next->prev = entry->prev;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

538 if (entry->prev)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

539 entry->prev->next = entry->next;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

540 entry->prev = NULL;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

541 entry->next = rdata->program_cache.head;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

542 rdata->program_cache.head->prev = entry;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

543 rdata->program_cache.head = entry;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

544 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

545 return entry;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

546 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

547

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

548 /* Create a program cache entry */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

549 entry = (GLES2_ProgramCacheEntry *)SDL_calloc(1, sizeof(GLES2_ProgramCacheEntry));

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

550 if (!entry)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

551 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

552 SDL_OutOfMemory();

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

553 return NULL;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

554 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

555 entry->vertex_shader = vertex;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

556 entry->fragment_shader = fragment;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

557 entry->blend_mode = blendMode;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

558

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

559 /* Create the program and link it */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

560 glGetError();

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

561 entry->id = glCreateProgram();

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

562 glAttachShader(entry->id, vertex->id);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

563 glAttachShader(entry->id, fragment->id);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

564 glBindAttribLocation(entry->id, GLES2_ATTRIBUTE_POSITION, "a_position");

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

565 glBindAttribLocation(entry->id, GLES2_ATTRIBUTE_TEXCOORD, "a_texCoord");

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

566 glLinkProgram(entry->id);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

567 glGetProgramiv(entry->id, GL_LINK_STATUS, &linkSuccessful);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

568 if (glGetError() != GL_NO_ERROR || !linkSuccessful)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

569 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

570 SDL_SetError("Failed to link shader program");

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

571 glDeleteProgram(entry->id);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

572 SDL_free(entry);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

573 return NULL;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

574 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

575

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

576 /* Predetermine locations of uniform variables */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

577 entry->uniform_locations[GLES2_UNIFORM_PROJECTION] =

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

578 glGetUniformLocation(entry->id, "u_projection");

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

579 entry->uniform_locations[GLES2_UNIFORM_TEXTURE] =

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

580 glGetUniformLocation(entry->id, "u_texture");

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

581 entry->uniform_locations[GLES2_UNIFORM_MODULATION] =

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

582 glGetUniformLocation(entry->id, "u_modulation");

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

583 entry->uniform_locations[GLES2_UNIFORM_COLOR] =

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

584 glGetUniformLocation(entry->id, "u_color");

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

585 entry->uniform_locations[GLES2_UNIFORM_COLORTABLE] =

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

586 glGetUniformLocation(entry->id, "u_colorTable");

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

587

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

588 /* Cache the linked program */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

589 if (rdata->program_cache.head)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

590 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

591 entry->next = rdata->program_cache.head;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

592 rdata->program_cache.head->prev = entry;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

593 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

594 else

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

595 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

596 rdata->program_cache.tail = entry;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

597 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

598 rdata->program_cache.head = entry;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

599 ++rdata->program_cache.count;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

600

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

601 /* Increment the refcount of the shaders we're using */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

602 ++vertex->references;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

603 ++fragment->references;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

604

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

605 /* Evict the last entry from the cache if we exceed the limit */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

606 if (rdata->program_cache.count > GLES2_MAX_CACHED_PROGRAMS)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

607 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

608 shaderEntry = rdata->program_cache.tail->vertex_shader;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

609 if (--shaderEntry->references <= 0)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

610 GLES2_EvictShader(renderer, shaderEntry);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

611 shaderEntry = rdata->program_cache.tail->fragment_shader;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

612 if (--shaderEntry->references <= 0)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

613 GLES2_EvictShader(renderer, shaderEntry);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

614 glDeleteProgram(rdata->program_cache.tail->id);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

615 rdata->program_cache.tail = rdata->program_cache.tail->prev;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

616 SDL_free(rdata->program_cache.tail->next);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

617 rdata->program_cache.tail->next = NULL;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

618 --rdata->program_cache.count;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

619 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

620 return entry;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

621 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

622

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

623 static GLES2_ShaderCacheEntry *

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

624 GLES2_CacheShader(SDL_Renderer *renderer, GLES2_ShaderType type, SDL_BlendMode blendMode)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

625 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

626 GLES2_DriverContext *rdata = (GLES2_DriverContext *)renderer->driverdata;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

627 const GLES2_Shader *shader;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

628 const GLES2_ShaderInstance *instance = NULL;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

629 GLES2_ShaderCacheEntry *entry = NULL;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

630 GLint compileSuccessful = GL_FALSE;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

631 int i, j;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

632

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

633 /* Find the corresponding shader */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

634 shader = GLES2_GetShader(type, blendMode);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

635 if (!shader)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

636 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

637 SDL_SetError("No shader matching the requested characteristics was found");

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

638 return NULL;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

639 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

640

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

641 /* Find a matching shader instance that's supported on this hardware */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

642 for (i = 0; i < shader->instance_count; ++i)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

643 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

644 for (j = 0; j < rdata->shader_format_count; ++j)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

645 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

646 if (!shader->instances)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

647 continue;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

648 if (shader->instances[i]->format != rdata->shader_formats[j])

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

649 continue;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

650 instance = shader->instances[i];

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

651 break;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

652 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

653 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

654 if (!instance)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

655 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

656 SDL_SetError("The specified shader cannot be loaded on the current platform");

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

657 return NULL;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

658 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

659

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

660 /* Check if we've already cached this shader */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

661 entry = rdata->shader_cache.head;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

662 while (entry)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

663 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

664 if (entry->instance == instance)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

665 break;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

666 entry = entry->next;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

667 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

668 if (entry)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

669 return entry;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

670

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

671 /* Create a shader cache entry */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

672 entry = (GLES2_ShaderCacheEntry *)SDL_calloc(1, sizeof(GLES2_ShaderCacheEntry));

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

673 if (!entry)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

674 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

675 SDL_OutOfMemory();

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

676 return NULL;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

677 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

678 entry->type = type;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

679 entry->instance = instance;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

680

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

681 /* Compile or load the selected shader instance */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

682 glGetError();

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

683 entry->id = glCreateShader(instance->type);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

684 if (instance->format == (GLenum)-1)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

685 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

686 glShaderSource(entry->id, 1, (const char **)&instance->data, &instance->length);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

687 glCompileShader(entry->id);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

688 glGetShaderiv(entry->id, GL_COMPILE_STATUS, &compileSuccessful);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

689 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

690 else

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

691 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

692 glShaderBinary(1, &entry->id, instance->format, instance->data, instance->length);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

693 compileSuccessful = GL_TRUE;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

694 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

695 if (glGetError() != GL_NO_ERROR || !compileSuccessful)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

696 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

697 SDL_SetError("Failed to load the specified shader");

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

698 glDeleteShader(entry->id);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

699 SDL_free(entry);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

700 return NULL;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

701 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

702

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

703 /* Link the shader entry in at the front of the cache */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

704 if (rdata->shader_cache.head)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

705 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

706 entry->next = rdata->shader_cache.head;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

707 rdata->shader_cache.head->prev = entry;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

708 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

709 rdata->shader_cache.head = entry;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

710 ++rdata->shader_cache.count;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

711 return entry;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

712 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

713

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

714 static void

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

715 GLES2_EvictShader(SDL_Renderer *renderer, GLES2_ShaderCacheEntry *entry)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

716 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

717 GLES2_DriverContext *rdata = (GLES2_DriverContext *)renderer->driverdata;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

718

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

719 /* Unlink the shader from the cache */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

720 if (entry->next)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

721 entry->next->prev = entry->prev;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

722 if (entry->prev)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

723 entry->prev->next = entry->next;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

724 if (rdata->shader_cache.head == entry)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

725 rdata->shader_cache.head = entry->next;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

726 --rdata->shader_cache.count;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

727

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

728 /* Deallocate the shader */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

729 glDeleteShader(entry->id);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

730 SDL_free(entry);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

731 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

732

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

733 static int

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

734 GLES2_SelectProgram(SDL_Renderer *renderer, GLES2_ImageSource source, SDL_BlendMode blendMode)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

735 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

736 GLES2_DriverContext *rdata = (GLES2_DriverContext *)renderer->driverdata;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

737 GLES2_ShaderCacheEntry *vertex = NULL;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

738 GLES2_ShaderCacheEntry *fragment = NULL;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

739 GLES2_ShaderType vtype, ftype;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

740 GLES2_ProgramCacheEntry *program;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

741

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

742 /* Select an appropriate shader pair for the specified modes */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

743 vtype = GLES2_SHADER_VERTEX_DEFAULT;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

744 switch (source)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

745 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

746 case GLES2_IMAGESOURCE_SOLID:

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

747 ftype = GLES2_SHADER_FRAGMENT_SOLID_SRC;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

748 break;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

749 case GLES2_IMAGESOURCE_TEXTURE:

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

750 ftype = GLES2_SHADER_FRAGMENT_TEXTURE_SRC;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

751 break;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

752 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

753

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

754 /* Load the requested shaders */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

755 vertex = GLES2_CacheShader(renderer, vtype, blendMode);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

756 if (!vertex)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

757 goto fault;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

758 fragment = GLES2_CacheShader(renderer, ftype, blendMode);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

759 if (!fragment)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

760 goto fault;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

761

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

762 /* Check if we need to change programs at all */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

763 if (rdata->current_program &&

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

764 rdata->current_program->vertex_shader == vertex &&

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

765 rdata->current_program->fragment_shader == fragment)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

766 return 0;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

767

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

768 /* Generate a matching program */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

769 program = GLES2_CacheProgram(renderer, vertex, fragment, blendMode);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

770 if (!program)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

771 goto fault;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

772

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

773 /* Select that program in OpenGL */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

774 glGetError();

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

775 glUseProgram(program->id);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

776 if (glGetError() != GL_NO_ERROR)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

777 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

778 SDL_SetError("Failed to select program");

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

779 goto fault;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

780 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

781

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

782 /* Set the current program */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

783 rdata->current_program = program;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

784

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

785 /* Activate an orthographic projection */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

786 if (GLES2_SetOrthographicProjection(renderer) < 0)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

787 goto fault;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

788

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

789 /* Clean up and return */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

790 return 0;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

791 fault:

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

792 if (vertex && vertex->references <= 0)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

793 GLES2_EvictShader(renderer, vertex);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

794 if (fragment && fragment->references <= 0)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

795 GLES2_EvictShader(renderer, fragment);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

796 rdata->current_program = NULL;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

797 return -1;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

798 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

799

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

800 static int

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

801 GLES2_SetOrthographicProjection(SDL_Renderer *renderer)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

802 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

803 GLES2_DriverContext *rdata = (GLES2_DriverContext *)renderer->driverdata;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

804 SDL_Window *window = renderer->window;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

805 int w, h;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

806 GLfloat projection[4][4];

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

807 GLuint locProjection;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

808

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

809 /* Get the window width and height */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

810 SDL_GetWindowSize(window, &w, &h);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

811

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

812 /* Prepare an orthographic projection */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

813 projection[0][0] = 2.0f / w;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

814 projection[0][1] = 0.0f;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

815 projection[0][2] = 0.0f;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

816 projection[0][3] = 0.0f;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

817 projection[1][0] = 0.0f;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

818 projection[1][1] = -2.0f / h;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

819 projection[1][2] = 0.0f;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

820 projection[1][3] = 0.0f;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

821 projection[2][0] = 0.0f;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

822 projection[2][1] = 0.0f;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

823 projection[2][2] = 1.0f;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

824 projection[2][3] = 0.0f;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

825 projection[3][0] = -1.0f;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

826 projection[3][1] = 1.0f;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

827 projection[3][2] = 0.0f;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

828 projection[3][3] = 1.0f;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

829

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

830 /* Set the projection matrix */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

831 locProjection = rdata->current_program->uniform_locations[GLES2_UNIFORM_PROJECTION];

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

832 glGetError();

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

833 glUniformMatrix4fv(locProjection, 1, GL_FALSE, (GLfloat *)projection);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

834 if (glGetError() != GL_NO_ERROR)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

835 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

836 SDL_SetError("Failed to set orthographic projection");

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

837 return -1;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

838 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

839 return 0;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

840 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

841

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

842 /*************************************************************************************************

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

843 * Rendering functions *

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

844 *************************************************************************************************/

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

845

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

846 static int GLES2_RenderClear(SDL_Renderer *renderer);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

847 static int GLES2_RenderDrawPoints(SDL_Renderer *renderer, const SDL_Point *points, int count);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

848 static int GLES2_RenderDrawLines(SDL_Renderer *renderer, const SDL_Point *points, int count);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

849 static int GLES2_RenderDrawRects(SDL_Renderer *renderer, const SDL_Rect **rects, int count);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

850 static int GLES2_RenderFillRects(SDL_Renderer *renderer, const SDL_Rect **rects, int count);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

851 static int GLES2_RenderCopy(SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect *srcrect,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

852 const SDL_Rect *dstrect);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

853 static void GLES2_RenderPresent(SDL_Renderer *renderer);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

854

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

855 static int

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

856 GLES2_RenderClear(SDL_Renderer *renderer)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

857 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

858 float r = (float)renderer->r / 255.0f;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

859 float g = (float)renderer->g / 255.0f;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

860 float b = (float)renderer->b / 255.0f;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

861 float a = (float)renderer->a / 255.0f;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

862

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

863 GLES2_ActivateRenderer(renderer);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

864

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

865 /* Clear the backbuffer with the selected color */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

866 glClearColor(r, g, b, a);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

867 glClear(GL_COLOR_BUFFER_BIT);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

868 return 0;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

869 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

870

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

871 static void

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

872 GLES2_SetBlendMode(int blendMode)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

873 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

874 switch (blendMode)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

875 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

876 case SDL_BLENDMODE_NONE:

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

877 default:

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

878 glDisable(GL_BLEND);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

879 break;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

880 case SDL_BLENDMODE_BLEND:

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

881 glEnable(GL_BLEND);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

882 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

883 break;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

884 case SDL_BLENDMODE_ADD:

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

885 glEnable(GL_BLEND);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

886 glBlendFunc(GL_SRC_ALPHA, GL_ONE);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

887 break;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

888 case SDL_BLENDMODE_MOD:

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

889 glEnable(GL_BLEND);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

890 glBlendFunc(GL_ZERO, GL_SRC_COLOR);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

891 break;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

892 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

893 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

894

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

895 static int

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

896 GLES2_RenderDrawPoints(SDL_Renderer *renderer, const SDL_Point *points, int count)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

897 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

898 GLES2_DriverContext *rdata = (GLES2_DriverContext *)renderer->driverdata;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

899 GLfloat *vertices;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

900 SDL_BlendMode blendMode;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

901 int alpha;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

902 GLuint locColor;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

903 int idx;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

904

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

905 GLES2_ActivateRenderer(renderer);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

906

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

907 blendMode = renderer->blendMode;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

908 alpha = renderer->a;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

909

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

910 /* Activate an appropriate shader and set the projection matrix */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

911 if (GLES2_SelectProgram(renderer, GLES2_IMAGESOURCE_SOLID, blendMode) < 0)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

912 return -1;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

913

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

914 /* Select the color to draw with */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

915 locColor = rdata->current_program->uniform_locations[GLES2_UNIFORM_COLOR];

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

916 glGetError();

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

917 glUniform4f(locColor,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

918 renderer->r / 255.0f,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

919 renderer->g / 255.0f,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

920 renderer->b / 255.0f,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

921 alpha / 255.0f);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

922

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

923 /* Configure the correct blend mode */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

924 GLES2_SetBlendMode(blendMode);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

925

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

926 /* Emit the specified vertices as points */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

927 vertices = SDL_stack_alloc(GLfloat, count * 2);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

928 for (idx = 0; idx < count; ++idx)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

929 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

930 GLfloat x = (GLfloat)points[idx].x + 0.5f;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

931 GLfloat y = (GLfloat)points[idx].y + 0.5f;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

932

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

933 vertices[idx * 2] = x;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

934 vertices[(idx * 2) + 1] = y;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

935 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

936 glEnableVertexAttribArray(GLES2_ATTRIBUTE_POSITION);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

937 glVertexAttribPointer(GLES2_ATTRIBUTE_POSITION, 2, GL_FLOAT, GL_FALSE, 0, vertices);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

938 glDrawArrays(GL_POINTS, 0, count);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

939 glDisableVertexAttribArray(GLES2_ATTRIBUTE_POSITION);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

940 SDL_stack_free(vertices);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

941 if (glGetError() != GL_NO_ERROR)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

942 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

943 SDL_SetError("Failed to render lines");

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

944 return -1;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

945 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

946 return 0;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

947 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

948

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

949 static int

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

950 GLES2_RenderDrawLines(SDL_Renderer *renderer, const SDL_Point *points, int count)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

951 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

952 GLES2_DriverContext *rdata = (GLES2_DriverContext *)renderer->driverdata;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

953 GLfloat *vertices;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

954 SDL_BlendMode blendMode;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

955 int alpha;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

956 GLuint locColor;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

957 int idx;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

958

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

959 GLES2_ActivateRenderer(renderer);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

960

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

961 blendMode = renderer->blendMode;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

962 alpha = renderer->a;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

963

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

964 /* Activate an appropriate shader and set the projection matrix */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

965 if (GLES2_SelectProgram(renderer, GLES2_IMAGESOURCE_SOLID, blendMode) < 0)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

966 return -1;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

967

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

968 /* Select the color to draw with */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

969 locColor = rdata->current_program->uniform_locations[GLES2_UNIFORM_COLOR];

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

970 glGetError();

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

971 glUniform4f(locColor,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

972 renderer->r / 255.0f,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

973 renderer->g / 255.0f,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

974 renderer->b / 255.0f,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

975 alpha / 255.0f);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

976

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

977 /* Configure the correct blend mode */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

978 GLES2_SetBlendMode(blendMode);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

979

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

980 /* Emit a line strip including the specified vertices */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

981 vertices = SDL_stack_alloc(GLfloat, count * 2);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

982 for (idx = 0; idx < count; ++idx)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

983 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

984 GLfloat x = (GLfloat)points[idx].x + 0.5f;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

985 GLfloat y = (GLfloat)points[idx].y + 0.5f;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

986

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

987 vertices[idx * 2] = x;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

988 vertices[(idx * 2) + 1] = y;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

989 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

990 glEnableVertexAttribArray(GLES2_ATTRIBUTE_POSITION);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

991 glVertexAttribPointer(GLES2_ATTRIBUTE_POSITION, 2, GL_FLOAT, GL_FALSE, 0, vertices);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

992 glDrawArrays(GL_LINE_STRIP, 0, count);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

993 glDisableVertexAttribArray(GLES2_ATTRIBUTE_POSITION);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

994 SDL_stack_free(vertices);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

995 if (glGetError() != GL_NO_ERROR)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

996 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

997 SDL_SetError("Failed to render lines");

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

998 return -1;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

999 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1000 return 0;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1001 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1002

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1003 static int

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1004 GLES2_RenderFillRects(SDL_Renderer *renderer, const SDL_Rect **rects, int count)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1005 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1006 GLES2_DriverContext *rdata = (GLES2_DriverContext *)renderer->driverdata;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1007 GLfloat vertices[8];

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1008 SDL_BlendMode blendMode;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1009 int alpha;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1010 GLuint locColor;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1011 int idx;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1012

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1013 GLES2_ActivateRenderer(renderer);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1014

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1015 blendMode = renderer->blendMode;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1016 alpha = renderer->a;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1017

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1018 /* Activate an appropriate shader and set the projection matrix */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1019 if (GLES2_SelectProgram(renderer, GLES2_IMAGESOURCE_SOLID, blendMode) < 0)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1020 return -1;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1021

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1022 /* Select the color to draw with */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1023 locColor = rdata->current_program->uniform_locations[GLES2_UNIFORM_COLOR];

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1024 glGetError();

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1025 glUniform4f(locColor,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1026 renderer->r / 255.0f,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1027 renderer->g / 255.0f,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1028 renderer->b / 255.0f,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1029 alpha / 255.0f);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1030

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1031 /* Configure the correct blend mode */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1032 GLES2_SetBlendMode(blendMode);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1033

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1034 /* Emit a line loop for each rectangle */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1035 glEnableVertexAttribArray(GLES2_ATTRIBUTE_POSITION);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1036 for (idx = 0; idx < count; ++idx)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1037 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1038 GLfloat xMin = (GLfloat)rects[idx]->x;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1039 GLfloat xMax = (GLfloat)(rects[idx]->x + rects[idx]->w);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1040 GLfloat yMin = (GLfloat)rects[idx]->y;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1041 GLfloat yMax = (GLfloat)(rects[idx]->y + rects[idx]->h);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1042

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1043 vertices[0] = xMin;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1044 vertices[1] = yMin;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1045 vertices[2] = xMax;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1046 vertices[3] = yMin;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1047 vertices[4] = xMin;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1048 vertices[5] = yMax;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1049 vertices[6] = xMax;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1050 vertices[7] = yMax;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1051 glVertexAttribPointer(GLES2_ATTRIBUTE_POSITION, 2, GL_FLOAT, GL_FALSE, 0, vertices);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1052 glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1053 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1054 glDisableVertexAttribArray(GLES2_ATTRIBUTE_POSITION);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1055 if (glGetError() != GL_NO_ERROR)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1056 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1057 SDL_SetError("Failed to render lines");

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1058 return -1;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1059 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1060 return 0;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1061 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1062

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1063 static int

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1064 GLES2_RenderCopy(SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect *srcrect,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1065 const SDL_Rect *dstrect)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1066 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1067 GLES2_DriverContext *rdata = (GLES2_DriverContext *)renderer->driverdata;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1068 GLES2_TextureData *tdata = (GLES2_TextureData *)texture->driverdata;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1069 GLES2_ImageSource sourceType;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1070 SDL_BlendMode blendMode;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1071 int alpha;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1072 GLfloat vertices[8];

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1073 GLfloat texCoords[8];

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1074 GLuint locTexture;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1075 GLuint locModulation;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1076 GLuint locColorTable;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1077

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1078 GLES2_ActivateRenderer(renderer);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1079

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1080 /* Activate an appropriate shader and set the projection matrix */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1081 blendMode = texture->blendMode;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1082 alpha = texture->a;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1083 sourceType = GLES2_IMAGESOURCE_TEXTURE;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1084 if (GLES2_SelectProgram(renderer, sourceType, blendMode) < 0)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1085 return -1;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1086

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1087 /* Select the target texture */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1088 locTexture = rdata->current_program->uniform_locations[GLES2_UNIFORM_TEXTURE];

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1089 glGetError();

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1090 glActiveTexture(GL_TEXTURE0);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1091 glBindTexture(tdata->texture_type, tdata->texture);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1092 glUniform1i(locTexture, 0);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1093

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1094 /* Configure texture blending */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1095 GLES2_SetBlendMode(blendMode);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1096

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1097 /* Configure color modulation */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1098 locModulation = rdata->current_program->uniform_locations[GLES2_UNIFORM_MODULATION];

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1099 glUniform4f(locModulation,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1100 texture->r / 255.0f,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1101 texture->g / 255.0f,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1102 texture->b / 255.0f,

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1103 alpha / 255.0f);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1104

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1105 /* Emit the textured quad */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1106 glEnableVertexAttribArray(GLES2_ATTRIBUTE_TEXCOORD);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1107 glEnableVertexAttribArray(GLES2_ATTRIBUTE_POSITION);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1108 vertices[0] = (GLfloat)dstrect->x;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1109 vertices[1] = (GLfloat)dstrect->y;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1110 vertices[2] = (GLfloat)(dstrect->x + dstrect->w);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1111 vertices[3] = (GLfloat)dstrect->y;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1112 vertices[4] = (GLfloat)dstrect->x;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1113 vertices[5] = (GLfloat)(dstrect->y + dstrect->h);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1114 vertices[6] = (GLfloat)(dstrect->x + dstrect->w);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1115 vertices[7] = (GLfloat)(dstrect->y + dstrect->h);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1116 glVertexAttribPointer(GLES2_ATTRIBUTE_POSITION, 2, GL_FLOAT, GL_FALSE, 0, vertices);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1117 texCoords[0] = srcrect->x / (GLfloat)texture->w;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1118 texCoords[1] = srcrect->y / (GLfloat)texture->h;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1119 texCoords[2] = (srcrect->x + srcrect->w) / (GLfloat)texture->w;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1120 texCoords[3] = srcrect->y / (GLfloat)texture->h;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1121 texCoords[4] = srcrect->x / (GLfloat)texture->w;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1122 texCoords[5] = (srcrect->y + srcrect->h) / (GLfloat)texture->h;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1123 texCoords[6] = (srcrect->x + srcrect->w) / (GLfloat)texture->w;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1124 texCoords[7] = (srcrect->y + srcrect->h) / (GLfloat)texture->h;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1125 glVertexAttribPointer(GLES2_ATTRIBUTE_TEXCOORD, 2, GL_FLOAT, GL_FALSE, 0, texCoords);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1126 glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1127 glDisableVertexAttribArray(GLES2_ATTRIBUTE_POSITION);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1128 glDisableVertexAttribArray(GLES2_ATTRIBUTE_TEXCOORD);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1129 if (glGetError() != GL_NO_ERROR)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1130 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1131 SDL_SetError("Failed to render texture");

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1132 return -1;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1133 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1134 return 0;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1135 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1136

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1137 static void

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1138 GLES2_RenderPresent(SDL_Renderer *renderer)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1139 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1140 GLES2_ActivateRenderer(renderer);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1141

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1142 /* Tell the video driver to swap buffers */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1143 SDL_GL_SwapWindow(renderer->window);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1144 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1145

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1146 /*************************************************************************************************

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1147 * Renderer instantiation *

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1148 *************************************************************************************************/

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1149

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1150 #define GL_NVIDIA_PLATFORM_BINARY_NV 0x890B

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1151

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1152 static SDL_Renderer *

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1153 GLES2_CreateRenderer(SDL_Window *window, Uint32 flags)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1154 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1155 SDL_Renderer *renderer;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1156 GLES2_DriverContext *rdata;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1157 GLint nFormats;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1158 #ifndef ZUNE_HD

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1159 GLboolean hasCompiler;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1160 #endif

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1161

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1162 /* Create the renderer struct */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1163 renderer = (SDL_Renderer *)SDL_calloc(1, sizeof(SDL_Renderer));

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1164 rdata = (GLES2_DriverContext *)SDL_calloc(1, sizeof(GLES2_DriverContext));

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1165 if (!renderer)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1166 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1167 SDL_OutOfMemory();

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1168 SDL_free(renderer);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1169 SDL_free(rdata);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1170 return NULL;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1171 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1172 renderer->info = GLES2_RenderDriver.info;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1173 renderer->window = window;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1174 renderer->driverdata = rdata;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1175

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1176 /* Create the GL context */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1177 rdata->context = SDL_GL_CreateContext(window);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1178 if (!rdata->context)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1179 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1180 SDL_free(renderer);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1181 SDL_free(rdata);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1182 return NULL;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1183 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1184

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1185 /* Determine supported shader formats */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1186 /* HACK: glGetInteger is broken on the Zune HD's compositor, so we just hardcode this */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1187 glGetError();

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1188 #ifdef ZUNE_HD

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1189 nFormats = 1;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1190 #else /* !ZUNE_HD */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1191 glGetIntegerv(GL_NUM_SHADER_BINARY_FORMATS, &nFormats);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1192 glGetBooleanv(GL_SHADER_COMPILER, &hasCompiler);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1193 if (hasCompiler)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1194 ++nFormats;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1195 #endif /* ZUNE_HD */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1196 rdata->shader_formats = (GLenum *)SDL_calloc(nFormats, sizeof(GLenum));

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1197 if (!rdata->shader_formats)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1198 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1199 SDL_OutOfMemory();

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1200 SDL_free(renderer);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1201 SDL_free(rdata);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1202 return NULL;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1203 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1204 rdata->shader_format_count = nFormats;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1205 #ifdef ZUNE_HD

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1206 rdata->shader_formats[0] = GL_NVIDIA_PLATFORM_BINARY_NV;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1207 #else /* !ZUNE_HD */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1208 glGetIntegerv(GL_SHADER_BINARY_FORMATS, (GLint *)rdata->shader_formats);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1209 if (glGetError() != GL_NO_ERROR)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1210 {

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1211 SDL_SetError("Failed to query supported shader formats");

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1212 SDL_free(renderer);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1213 SDL_free(rdata->shader_formats);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1214 SDL_free(rdata);

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1215 return NULL;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1216 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1217 if (hasCompiler)

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1218 rdata->shader_formats[nFormats - 1] = (GLenum)-1;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1219 #endif /* ZUNE_HD */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1220

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1221 /* Populate the function pointers for the module */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1222 renderer->WindowEvent = &GLES2_WindowEvent;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1223 renderer->CreateTexture = &GLES2_CreateTexture;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1224 renderer->UpdateTexture = &GLES2_UpdateTexture;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1225 renderer->LockTexture = &GLES2_LockTexture;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1226 renderer->UnlockTexture = &GLES2_UnlockTexture;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1227 renderer->RenderClear = &GLES2_RenderClear;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1228 renderer->RenderDrawPoints = &GLES2_RenderDrawPoints;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1229 renderer->RenderDrawLines = &GLES2_RenderDrawLines;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1230 renderer->RenderFillRects = &GLES2_RenderFillRects;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1231 renderer->RenderCopy = &GLES2_RenderCopy;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1232 renderer->RenderPresent = &GLES2_RenderPresent;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1233 renderer->DestroyTexture = &GLES2_DestroyTexture;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1234 renderer->DestroyRenderer = &GLES2_DestroyRenderer;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1235 return renderer;

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1236 }

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1237

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1238 #endif /* SDL_VIDEO_RENDER_OGL_ES2 */

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1239

523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck

Sam Lantinga <slouken@libsdl.org>

parents:

diff changeset

1240 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/render/opengles2/SDL_render_gles2.c @ 5204:523409574510