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

annotate src/render/opengles2/SDL_render_gles2.c @ 5217:b0797947dd1c

You don't need to copy the pixels into the streaming texture's pixel data. This behavior is defined specifically to optimize the UpdateTexture path.

author	Sam Lantinga <slouken@libsdl.org>
date	Sun, 06 Feb 2011 20:56:21 -0800
parents	25ad4a50d34f
children	c66b2a778b7e

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
5207 daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h Sam Lantinga <slouken@libsdl.org> parents: 5205 diff changeset	28 #include "SDL_opengles2.h"
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	29 #include "../SDL_sysrender.h"
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	30 #include "SDL_shaders_gles2.h"
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	31
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	32 /*************************************************************************************************
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	33 * Bootstrap data *
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	34 *************************************************************************************************/
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	35
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	36 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	37
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	38 SDL_RenderDriver GLES2_RenderDriver = {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	39 GLES2_CreateRenderer,
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 "opengles2",
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	42 (SDL_RENDERER_ACCELERATED \| SDL_RENDERER_PRESENTVSYNC),
5205 1f2b17f42fd0 Removed extra unneeded pixel formats, added support for VSYNC on other platforms besides Zune HD. Sam Lantinga <slouken@libsdl.org> parents: 5204 diff changeset	43 1,
1f2b17f42fd0 Removed extra unneeded pixel formats, added support for VSYNC on other platforms besides Zune HD. Sam Lantinga <slouken@libsdl.org> parents: 5204 diff changeset	44 {SDL_PIXELFORMAT_ABGR8888},
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	45 0,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	46 0
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	47 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	48 };
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	49
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	50 /*************************************************************************************************
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	51 * Context structures *
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	52 *************************************************************************************************/
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	53
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	54 typedef struct GLES2_TextureData
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	55 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	56 GLenum texture;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	57 GLenum texture_type;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	58 GLenum pixel_format;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	59 GLenum pixel_type;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	60 void *pixel_data;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	61 size_t pitch;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	62 } GLES2_TextureData;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	63
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	64 typedef struct GLES2_ShaderCacheEntry
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 GLuint id;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	67 GLES2_ShaderType type;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	68 const GLES2_ShaderInstance *instance;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	69 int references;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	70 struct GLES2_ShaderCacheEntry *prev;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	71 struct GLES2_ShaderCacheEntry *next;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	72 } GLES2_ShaderCacheEntry;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	73
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	74 typedef struct GLES2_ShaderCache
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 int count;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	77 GLES2_ShaderCacheEntry *head;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	78 } GLES2_ShaderCache;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	79
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	80 typedef struct GLES2_ProgramCacheEntry
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 GLuint id;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	83 SDL_BlendMode blend_mode;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	84 GLES2_ShaderCacheEntry *vertex_shader;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	85 GLES2_ShaderCacheEntry *fragment_shader;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	86 GLuint uniform_locations[16];
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	87 struct GLES2_ProgramCacheEntry *prev;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	88 struct GLES2_ProgramCacheEntry *next;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	89 } GLES2_ProgramCacheEntry;
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 typedef struct GLES2_ProgramCache
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	92 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	93 int count;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	94 GLES2_ProgramCacheEntry *head;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	95 GLES2_ProgramCacheEntry *tail;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	96 } GLES2_ProgramCache;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	97
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	98 typedef enum
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	99 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	100 GLES2_ATTRIBUTE_POSITION = 0,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	101 GLES2_ATTRIBUTE_TEXCOORD = 1
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	102 } GLES2_Attribute;
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 typedef enum
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	105 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	106 GLES2_UNIFORM_PROJECTION,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	107 GLES2_UNIFORM_TEXTURE,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	108 GLES2_UNIFORM_MODULATION,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	109 GLES2_UNIFORM_COLOR,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	110 GLES2_UNIFORM_COLORTABLE
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	111 } GLES2_Uniform;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	112
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	113 typedef enum
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	114 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	115 GLES2_IMAGESOURCE_SOLID,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	116 GLES2_IMAGESOURCE_TEXTURE
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	117 } GLES2_ImageSource;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	118
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	119 typedef struct GLES2_DriverContext
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	120 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	121 SDL_GLContext *context;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	122 int shader_format_count;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	123 GLenum *shader_formats;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	124 GLES2_ShaderCache shader_cache;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	125 GLES2_ProgramCache program_cache;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	126 GLES2_ProgramCacheEntry *current_program;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	127 SDL_bool updateSize;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	128 } GLES2_DriverContext;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	129
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	130 #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	131
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	132 /*************************************************************************************************
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	133 * Renderer state APIs *
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	134 *************************************************************************************************/
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 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	137 const SDL_WindowEvent *event);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	138 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	139 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	140 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	141
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	142 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	143
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	144 static int
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	145 GLES2_ActivateRenderer(SDL_Renderer * renderer)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	146 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	147 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	148 SDL_Window *window = renderer->window;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	149
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	150 if (SDL_CurrentContext != rdata->context) {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	151 /* 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	152 rdata->current_program = NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	153
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	154 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	155 return -1;
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 SDL_CurrentContext = rdata->context;
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 if (rdata->updateSize) {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	160 int w, h;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	161
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	162 SDL_GetWindowSize(window, &w, &h);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	163 glViewport(0, 0, w, h);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	164 rdata->updateSize = SDL_FALSE;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	165 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	166 return 0;
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
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	169 static void
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	170 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	171 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	172 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	173
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	174 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	175 /* 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	176 SDL_CurrentContext = NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	177 rdata->updateSize = SDL_TRUE;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	178 }
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
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	181 static void
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	182 GLES2_DestroyRenderer(SDL_Renderer *renderer)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	183 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	184 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	185 GLES2_ProgramCacheEntry *entry;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	186 GLES2_ProgramCacheEntry *next;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	187
5212 115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	188 /* Deallocate everything */
115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	189 if (rdata) {
115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	190 GLES2_ActivateRenderer(renderer);
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	191
5212 115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	192 entry = rdata->program_cache.head;
115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	193 while (entry) {
115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	194 glDeleteShader(entry->vertex_shader->id);
115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	195 glDeleteShader(entry->fragment_shader->id);
115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	196 SDL_free(entry->vertex_shader);
115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	197 SDL_free(entry->fragment_shader);
115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	198 glDeleteProgram(entry->id);
115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	199 next = entry->next;
115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	200 SDL_free(entry);
115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	201 entry = next;
115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	202 }
115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	203 if (rdata->context) {
115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	204 SDL_GL_DeleteContext(rdata->context);
115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	205 }
115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	206 if (rdata->shader_formats) {
115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	207 SDL_free(rdata->shader_formats);
115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	208 }
115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	209 SDL_free(rdata);
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	210 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	211 SDL_free(renderer);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	212 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	213
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	214 /*************************************************************************************************
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	215 * Texture APIs *
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 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	219 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	220 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	221 void *pixels, int pitch);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	222 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	223 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	224 const void *pixels, int pitch);
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 static int
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	227 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	228 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	229 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	230 GLES2_TextureData *tdata;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	231 GLenum format;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	232 GLenum type;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	233
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	234 GLES2_ActivateRenderer(renderer);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	235
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	236 /* 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	237 switch (texture->format)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	238 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	239 case SDL_PIXELFORMAT_ABGR8888:
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	240 format = GL_RGBA;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	241 type = GL_UNSIGNED_BYTE;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	242 break;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	243 default:
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	244 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	245 return -1;
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 /* Allocate a texture struct */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	249 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	250 if (!tdata)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	251 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	252 SDL_OutOfMemory();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	253 return -1;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	254 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	255 tdata->texture = 0;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	256 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	257 tdata->pixel_format = format;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	258 tdata->pixel_type = type;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	259
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	260 /* 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	261 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	262 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	263 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	264 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	265 if (!tdata->pixel_data)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	266 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	267 SDL_OutOfMemory();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	268 SDL_free(tdata);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	269 return -1;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	270 }
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
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	273 /* Allocate the texture */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	274 glGetError();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	275 glGenTextures(1, &tdata->texture);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	276 glActiveTexture(GL_TEXTURE0);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	277 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	278 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	279 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	280 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	281 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	282 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	283 if (glGetError() != GL_NO_ERROR)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	284 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	285 SDL_SetError("Texture creation failed");
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	286 glDeleteTextures(1, &tdata->texture);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	287 SDL_free(tdata);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	288 return -1;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	289 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	290 texture->driverdata = tdata;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	291 return 0;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	292 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	293
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	294 static void
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	295 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	296 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	297 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	298
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	299 GLES2_ActivateRenderer(renderer);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	300
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	301 /* Destroy the texture */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	302 if (tdata)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	303 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	304 glDeleteTextures(1, &tdata->texture);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	305 SDL_free(tdata->pixel_data);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	306 SDL_free(tdata);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	307 texture->driverdata = NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	308 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	309 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	310
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	311 static int
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	312 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	313 void *pixels, int pitch)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	314 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	315 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	316
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	317 /* 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	318 pixels = (Uint8 )tdata->pixel_data +
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	319 (tdata->pitch * rect->y) +
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	320 (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	321 *pitch = tdata->pitch;
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 return 0;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	324 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	325
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	326 static void
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	327 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	328 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	329 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	330
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	331 GLES2_ActivateRenderer(renderer);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	332
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	333 glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	334 glActiveTexture(GL_TEXTURE0);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	335 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	336 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	337 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	338 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	339
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	340 static int
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	341 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	342 const void *pixels, int pitch)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	343 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	344 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	345 Uint8 *blob = NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	346 Uint8 *src;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	347 int srcPitch;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	348 Uint8 *dest;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	349 int y;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	350
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	351 GLES2_ActivateRenderer(renderer);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	352
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	353 /* 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	354 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	355 return 0;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	356
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	357 /* 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	358 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	359 src = (Uint8 *)pixels;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	360 if (pitch != srcPitch)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	361 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	362 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	363 if (!blob)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	364 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	365 SDL_OutOfMemory();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	366 return -1;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	367 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	368 src = blob;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	369 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	370 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	371 SDL_memcpy(src, pixels, srcPitch);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	372 src += srcPitch;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	373 pixels = (Uint8 *)pixels + pitch;
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 src = blob;
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
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	378 /* 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	379 glGetError();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	380 glActiveTexture(GL_TEXTURE0);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	381 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	382 glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	383 glTexSubImage2D(tdata->texture_type,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	384 0,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	385 rect->x,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	386 rect->y,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	387 rect->w,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	388 rect->h,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	389 tdata->pixel_format,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	390 tdata->pixel_type,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	391 src);
5217 b0797947dd1c You don't need to copy the pixels into the streaming texture's pixel data. This behavior is defined specifically to optimize the UpdateTexture path. Sam Lantinga <slouken@libsdl.org> parents: 5216 diff changeset	392 SDL_free(blob);
b0797947dd1c You don't need to copy the pixels into the streaming texture's pixel data. This behavior is defined specifically to optimize the UpdateTexture path. Sam Lantinga <slouken@libsdl.org> parents: 5216 diff changeset	393
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	394 if (glGetError() != GL_NO_ERROR)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	395 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	396 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	397 return -1;
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 /*************************************************************************************************
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	403 * Shader management functions *
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
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	406 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	407 SDL_BlendMode blendMode);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	408 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	409 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	410 GLES2_ShaderCacheEntry *vertex,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	411 GLES2_ShaderCacheEntry *fragment,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	412 SDL_BlendMode blendMode);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	413 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	414 SDL_BlendMode blendMode);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	415 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	416
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	417 static GLES2_ProgramCacheEntry *
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	418 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	419 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	420 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	421 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	422 GLES2_ProgramCacheEntry *entry;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	423 GLES2_ShaderCacheEntry *shaderEntry;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	424 GLint linkSuccessful;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	425
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	426 /* 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	427 entry = rdata->program_cache.head;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	428 while (entry)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	429 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	430 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	431 break;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	432 entry = entry->next;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	433 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	434 if (entry)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	435 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	436 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	437 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	438 if (entry->next)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	439 entry->next->prev = entry->prev;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	440 if (entry->prev)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	441 entry->prev->next = entry->next;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	442 entry->prev = NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	443 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	444 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	445 rdata->program_cache.head = entry;
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 return entry;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	448 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	449
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	450 /* Create a program cache entry */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	451 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	452 if (!entry)
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 SDL_OutOfMemory();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	455 return NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	456 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	457 entry->vertex_shader = vertex;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	458 entry->fragment_shader = fragment;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	459 entry->blend_mode = blendMode;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	460
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	461 /* 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	462 glGetError();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	463 entry->id = glCreateProgram();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	464 glAttachShader(entry->id, vertex->id);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	465 glAttachShader(entry->id, fragment->id);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	466 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	467 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	468 glLinkProgram(entry->id);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	469 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	470 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	471 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	472 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	473 glDeleteProgram(entry->id);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	474 SDL_free(entry);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	475 return NULL;
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
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	478 /* Predetermine locations of uniform variables */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	479 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	480 glGetUniformLocation(entry->id, "u_projection");
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	481 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	482 glGetUniformLocation(entry->id, "u_texture");
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	483 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	484 glGetUniformLocation(entry->id, "u_modulation");
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	485 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	486 glGetUniformLocation(entry->id, "u_color");
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	487 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	488 glGetUniformLocation(entry->id, "u_colorTable");
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	489
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	490 /* Cache the linked program */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	491 if (rdata->program_cache.head)
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 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	494 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	495 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	496 else
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	497 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	498 rdata->program_cache.tail = entry;
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 rdata->program_cache.head = entry;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	501 ++rdata->program_cache.count;
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 /* 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	504 ++vertex->references;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	505 ++fragment->references;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	506
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	507 /* 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	508 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	509 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	510 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	511 if (--shaderEntry->references <= 0)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	512 GLES2_EvictShader(renderer, shaderEntry);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	513 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	514 if (--shaderEntry->references <= 0)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	515 GLES2_EvictShader(renderer, shaderEntry);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	516 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	517 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	518 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	519 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	520 --rdata->program_cache.count;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	521 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	522 return entry;
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
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	525 static GLES2_ShaderCacheEntry *
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	526 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	527 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	528 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	529 const GLES2_Shader *shader;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	530 const GLES2_ShaderInstance *instance = NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	531 GLES2_ShaderCacheEntry *entry = NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	532 GLint compileSuccessful = GL_FALSE;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	533 int i, j;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	534
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	535 /* Find the corresponding shader */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	536 shader = GLES2_GetShader(type, blendMode);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	537 if (!shader)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	538 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	539 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	540 return NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	541 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	542
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	543 /* Find a matching shader instance that's supported on this hardware */
5209 7d64745f1363 Fixed crash when binary shaders are not available. Sam Lantinga <slouken@libsdl.org> parents: 5207 diff changeset	544 for (i = 0; i < shader->instance_count && !instance; ++i)
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	545 {
5209 7d64745f1363 Fixed crash when binary shaders are not available. Sam Lantinga <slouken@libsdl.org> parents: 5207 diff changeset	546 for (j = 0; j < rdata->shader_format_count && !instance; ++j)
5204 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 if (!shader->instances)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	549 continue;
5209 7d64745f1363 Fixed crash when binary shaders are not available. Sam Lantinga <slouken@libsdl.org> parents: 5207 diff changeset	550 if (!shader->instances[i])
7d64745f1363 Fixed crash when binary shaders are not available. Sam Lantinga <slouken@libsdl.org> parents: 5207 diff changeset	551 continue;
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	552 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	553 continue;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	554 instance = shader->instances[i];
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	555 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	556 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	557 if (!instance)
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 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	560 return NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	561 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	562
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	563 /* 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	564 entry = rdata->shader_cache.head;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	565 while (entry)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	566 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	567 if (entry->instance == instance)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	568 break;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	569 entry = entry->next;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	570 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	571 if (entry)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	572 return entry;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	573
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	574 /* Create a shader cache entry */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	575 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	576 if (!entry)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	577 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	578 SDL_OutOfMemory();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	579 return NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	580 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	581 entry->type = type;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	582 entry->instance = instance;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	583
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	584 /* 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	585 glGetError();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	586 entry->id = glCreateShader(instance->type);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	587 if (instance->format == (GLenum)-1)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	588 {
5215 7b6101f3ea58 Fixed compiling source shaders Sam Lantinga <slouken@libsdl.org> parents: 5212 diff changeset	589 glShaderSource(entry->id, 1, (const char **)&instance->data, NULL);
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	590 glCompileShader(entry->id);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	591 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	592 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	593 else
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	594 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	595 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	596 compileSuccessful = GL_TRUE;
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 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	599 {
5215 7b6101f3ea58 Fixed compiling source shaders Sam Lantinga <slouken@libsdl.org> parents: 5212 diff changeset	600 char *info = NULL;
7b6101f3ea58 Fixed compiling source shaders Sam Lantinga <slouken@libsdl.org> parents: 5212 diff changeset	601 int length;
7b6101f3ea58 Fixed compiling source shaders Sam Lantinga <slouken@libsdl.org> parents: 5212 diff changeset	602
7b6101f3ea58 Fixed compiling source shaders Sam Lantinga <slouken@libsdl.org> parents: 5212 diff changeset	603 glGetShaderiv(entry->id, GL_INFO_LOG_LENGTH, &length);
7b6101f3ea58 Fixed compiling source shaders Sam Lantinga <slouken@libsdl.org> parents: 5212 diff changeset	604 if (length > 0) {
7b6101f3ea58 Fixed compiling source shaders Sam Lantinga <slouken@libsdl.org> parents: 5212 diff changeset	605 info = SDL_stack_alloc(char, length);
7b6101f3ea58 Fixed compiling source shaders Sam Lantinga <slouken@libsdl.org> parents: 5212 diff changeset	606 if (info) {
7b6101f3ea58 Fixed compiling source shaders Sam Lantinga <slouken@libsdl.org> parents: 5212 diff changeset	607 glGetShaderInfoLog(entry->id, length, &length, info);
7b6101f3ea58 Fixed compiling source shaders Sam Lantinga <slouken@libsdl.org> parents: 5212 diff changeset	608 }
7b6101f3ea58 Fixed compiling source shaders Sam Lantinga <slouken@libsdl.org> parents: 5212 diff changeset	609 }
7b6101f3ea58 Fixed compiling source shaders Sam Lantinga <slouken@libsdl.org> parents: 5212 diff changeset	610 if (info) {
7b6101f3ea58 Fixed compiling source shaders Sam Lantinga <slouken@libsdl.org> parents: 5212 diff changeset	611 SDL_SetError("Failed to load the shader: %s", info);
7b6101f3ea58 Fixed compiling source shaders Sam Lantinga <slouken@libsdl.org> parents: 5212 diff changeset	612 SDL_stack_free(info);
7b6101f3ea58 Fixed compiling source shaders Sam Lantinga <slouken@libsdl.org> parents: 5212 diff changeset	613 } else {
7b6101f3ea58 Fixed compiling source shaders Sam Lantinga <slouken@libsdl.org> parents: 5212 diff changeset	614 SDL_SetError("Failed to load the shader");
7b6101f3ea58 Fixed compiling source shaders Sam Lantinga <slouken@libsdl.org> parents: 5212 diff changeset	615 }
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	616 glDeleteShader(entry->id);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	617 SDL_free(entry);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	618 return NULL;
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
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	621 /* 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	622 if (rdata->shader_cache.head)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	623 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	624 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	625 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	626 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	627 rdata->shader_cache.head = entry;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	628 ++rdata->shader_cache.count;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	629 return entry;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	630 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	631
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	632 static void
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	633 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	634 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	635 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	636
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	637 /* 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	638 if (entry->next)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	639 entry->next->prev = entry->prev;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	640 if (entry->prev)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	641 entry->prev->next = entry->next;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	642 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	643 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	644 --rdata->shader_cache.count;
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 /* Deallocate the shader */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	647 glDeleteShader(entry->id);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	648 SDL_free(entry);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	649 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	650
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	651 static int
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	652 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	653 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	654 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	655 GLES2_ShaderCacheEntry *vertex = NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	656 GLES2_ShaderCacheEntry *fragment = NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	657 GLES2_ShaderType vtype, ftype;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	658 GLES2_ProgramCacheEntry *program;
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 /* 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	661 vtype = GLES2_SHADER_VERTEX_DEFAULT;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	662 switch (source)
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 case GLES2_IMAGESOURCE_SOLID:
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	665 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	666 break;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	667 case GLES2_IMAGESOURCE_TEXTURE:
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	668 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	669 break;
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
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	672 /* Load the requested shaders */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	673 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	674 if (!vertex)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	675 goto fault;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	676 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	677 if (!fragment)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	678 goto fault;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	679
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	680 /* 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	681 if (rdata->current_program &&
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	682 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	683 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	684 return 0;
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 /* Generate a matching program */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	687 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	688 if (!program)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	689 goto fault;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	690
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	691 /* Select that program in OpenGL */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	692 glGetError();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	693 glUseProgram(program->id);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	694 if (glGetError() != GL_NO_ERROR)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	695 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	696 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	697 goto fault;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	698 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	699
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	700 /* Set the current program */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	701 rdata->current_program = program;
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 /* Activate an orthographic projection */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	704 if (GLES2_SetOrthographicProjection(renderer) < 0)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	705 goto fault;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	706
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	707 /* Clean up and return */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	708 return 0;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	709 fault:
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	710 if (vertex && vertex->references <= 0)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	711 GLES2_EvictShader(renderer, vertex);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	712 if (fragment && fragment->references <= 0)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	713 GLES2_EvictShader(renderer, fragment);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	714 rdata->current_program = NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	715 return -1;
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
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	718 static int
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	719 GLES2_SetOrthographicProjection(SDL_Renderer *renderer)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	720 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	721 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	722 SDL_Window *window = renderer->window;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	723 int w, h;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	724 GLfloat projection[4][4];
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	725 GLuint locProjection;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	726
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	727 /* 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	728 SDL_GetWindowSize(window, &w, &h);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	729
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	730 /* Prepare an orthographic projection */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	731 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	732 projection[0][1] = 0.0f;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	733 projection[0][2] = 0.0f;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	734 projection[0][3] = 0.0f;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	735 projection[1][0] = 0.0f;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	736 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	737 projection[1][2] = 0.0f;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	738 projection[1][3] = 0.0f;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	739 projection[2][0] = 0.0f;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	740 projection[2][1] = 0.0f;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	741 projection[2][2] = 1.0f;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	742 projection[2][3] = 0.0f;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	743 projection[3][0] = -1.0f;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	744 projection[3][1] = 1.0f;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	745 projection[3][2] = 0.0f;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	746 projection[3][3] = 1.0f;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	747
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	748 /* Set the projection matrix */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	749 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	750 glGetError();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	751 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	752 if (glGetError() != GL_NO_ERROR)
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 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	755 return -1;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	756 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	757 return 0;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	758 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	759
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	760 /*************************************************************************************************
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	761 * Rendering functions *
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	762 *************************************************************************************************/
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	763
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	764 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	765 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	766 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	767 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	768 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	769 const SDL_Rect *dstrect);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	770 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	771
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	772 static int
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	773 GLES2_RenderClear(SDL_Renderer *renderer)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	774 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	775 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	776 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	777 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	778 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	779
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	780 GLES2_ActivateRenderer(renderer);
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 /* 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	783 glClearColor(r, g, b, a);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	784 glClear(GL_COLOR_BUFFER_BIT);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	785 return 0;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	786 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	787
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	788 static void
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	789 GLES2_SetBlendMode(int blendMode)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	790 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	791 switch (blendMode)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	792 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	793 case SDL_BLENDMODE_NONE:
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	794 default:
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	795 glDisable(GL_BLEND);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	796 break;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	797 case SDL_BLENDMODE_BLEND:
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	798 glEnable(GL_BLEND);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	799 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	800 break;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	801 case SDL_BLENDMODE_ADD:
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	802 glEnable(GL_BLEND);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	803 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	804 break;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	805 case SDL_BLENDMODE_MOD:
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	806 glEnable(GL_BLEND);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	807 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	808 break;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	809 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	810 }
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 static int
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	813 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	814 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	815 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	816 GLfloat *vertices;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	817 SDL_BlendMode blendMode;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	818 int alpha;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	819 GLuint locColor;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	820 int idx;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	821
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	822 GLES2_ActivateRenderer(renderer);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	823
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	824 blendMode = renderer->blendMode;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	825 alpha = renderer->a;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	826
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	827 /* 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	828 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	829 return -1;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	830
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	831 /* 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	832 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	833 glGetError();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	834 glUniform4f(locColor,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	835 renderer->r / 255.0f,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	836 renderer->g / 255.0f,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	837 renderer->b / 255.0f,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	838 alpha / 255.0f);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	839
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	840 /* Configure the correct blend mode */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	841 GLES2_SetBlendMode(blendMode);
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 /* 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	844 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	845 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	846 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	847 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	848 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	849
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	850 vertices[idx * 2] = x;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	851 vertices[(idx * 2) + 1] = y;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	852 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	853 glEnableVertexAttribArray(GLES2_ATTRIBUTE_POSITION);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	854 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	855 glDrawArrays(GL_POINTS, 0, count);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	856 glDisableVertexAttribArray(GLES2_ATTRIBUTE_POSITION);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	857 SDL_stack_free(vertices);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	858 if (glGetError() != GL_NO_ERROR)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	859 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	860 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	861 return -1;
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 return 0;
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
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	866 static int
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	867 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	868 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	869 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	870 GLfloat *vertices;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	871 SDL_BlendMode blendMode;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	872 int alpha;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	873 GLuint locColor;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	874 int idx;
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 GLES2_ActivateRenderer(renderer);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	877
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	878 blendMode = renderer->blendMode;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	879 alpha = renderer->a;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	880
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	881 /* 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	882 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	883 return -1;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	884
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	885 /* 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	886 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	887 glGetError();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	888 glUniform4f(locColor,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	889 renderer->r / 255.0f,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	890 renderer->g / 255.0f,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	891 renderer->b / 255.0f,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	892 alpha / 255.0f);
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 /* Configure the correct blend mode */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	895 GLES2_SetBlendMode(blendMode);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	896
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	897 /* 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	898 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	899 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	900 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	901 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	902 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	903
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	904 vertices[idx * 2] = x;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	905 vertices[(idx * 2) + 1] = y;
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 glEnableVertexAttribArray(GLES2_ATTRIBUTE_POSITION);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	908 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	909 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	910 glDisableVertexAttribArray(GLES2_ATTRIBUTE_POSITION);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	911 SDL_stack_free(vertices);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	912 if (glGetError() != GL_NO_ERROR)
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 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	915 return -1;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	916 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	917 return 0;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	918 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	919
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	920 static int
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	921 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	922 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	923 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	924 GLfloat vertices[8];
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	925 SDL_BlendMode blendMode;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	926 int alpha;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	927 GLuint locColor;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	928 int 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 GLES2_ActivateRenderer(renderer);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	931
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	932 blendMode = renderer->blendMode;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	933 alpha = renderer->a;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	934
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	935 /* 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	936 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	937 return -1;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	938
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	939 /* 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	940 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	941 glGetError();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	942 glUniform4f(locColor,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	943 renderer->r / 255.0f,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	944 renderer->g / 255.0f,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	945 renderer->b / 255.0f,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	946 alpha / 255.0f);
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 /* Configure the correct blend mode */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	949 GLES2_SetBlendMode(blendMode);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	950
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	951 /* 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	952 glEnableVertexAttribArray(GLES2_ATTRIBUTE_POSITION);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	953 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	954 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	955 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	956 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	957 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	958 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	959
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	960 vertices[0] = xMin;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	961 vertices[1] = yMin;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	962 vertices[2] = xMax;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	963 vertices[3] = yMin;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	964 vertices[4] = xMin;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	965 vertices[5] = yMax;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	966 vertices[6] = xMax;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	967 vertices[7] = yMax;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	968 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	969 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	970 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	971 glDisableVertexAttribArray(GLES2_ATTRIBUTE_POSITION);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	972 if (glGetError() != GL_NO_ERROR)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	973 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	974 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	975 return -1;
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 return 0;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	978 }
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 static int
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	981 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	982 const SDL_Rect *dstrect)
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 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	985 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	986 GLES2_ImageSource sourceType;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	987 SDL_BlendMode blendMode;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	988 int alpha;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	989 GLfloat vertices[8];
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	990 GLfloat texCoords[8];
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	991 GLuint locTexture;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	992 GLuint locModulation;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	993 GLuint locColorTable;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	994
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	995 GLES2_ActivateRenderer(renderer);
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 /* 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	998 blendMode = texture->blendMode;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	999 alpha = texture->a;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1000 sourceType = GLES2_IMAGESOURCE_TEXTURE;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1001 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	1002 return -1;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1003
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1004 /* Select the target texture */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1005 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	1006 glGetError();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1007 glActiveTexture(GL_TEXTURE0);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1008 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	1009 glUniform1i(locTexture, 0);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1010
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1011 /* Configure texture blending */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1012 GLES2_SetBlendMode(blendMode);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1013
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1014 /* Configure color modulation */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1015 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	1016 glUniform4f(locModulation,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1017 texture->r / 255.0f,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1018 texture->g / 255.0f,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1019 texture->b / 255.0f,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1020 alpha / 255.0f);
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 /* Emit the textured quad */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1023 glEnableVertexAttribArray(GLES2_ATTRIBUTE_TEXCOORD);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1024 glEnableVertexAttribArray(GLES2_ATTRIBUTE_POSITION);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1025 vertices[0] = (GLfloat)dstrect->x;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1026 vertices[1] = (GLfloat)dstrect->y;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1027 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	1028 vertices[3] = (GLfloat)dstrect->y;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1029 vertices[4] = (GLfloat)dstrect->x;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1030 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	1031 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	1032 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	1033 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	1034 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	1035 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	1036 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	1037 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	1038 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	1039 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	1040 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	1041 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	1042 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	1043 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	1044 glDisableVertexAttribArray(GLES2_ATTRIBUTE_POSITION);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1045 glDisableVertexAttribArray(GLES2_ATTRIBUTE_TEXCOORD);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1046 if (glGetError() != GL_NO_ERROR)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1047 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1048 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	1049 return -1;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1050 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1051 return 0;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1052 }
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 static void
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1055 GLES2_RenderPresent(SDL_Renderer *renderer)
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 GLES2_ActivateRenderer(renderer);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1058
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1059 /* 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	1060 SDL_GL_SwapWindow(renderer->window);
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 /*************************************************************************************************
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1064 * Renderer instantiation *
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1065 *************************************************************************************************/
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 #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	1068
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1069 static SDL_Renderer *
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1070 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	1071 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1072 SDL_Renderer *renderer;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1073 GLES2_DriverContext *rdata;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1074 GLint nFormats;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1075 #ifndef ZUNE_HD
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1076 GLboolean hasCompiler;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1077 #endif
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1078
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1079 /* Create the renderer struct */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1080 renderer = (SDL_Renderer *)SDL_calloc(1, sizeof(SDL_Renderer));
5212 115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	1081 if (!renderer) {
115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	1082 SDL_OutOfMemory();
115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	1083 return NULL;
115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	1084 }
115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	1085
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1086 rdata = (GLES2_DriverContext *)SDL_calloc(1, sizeof(GLES2_DriverContext));
5212 115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	1087 if (!rdata) {
115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	1088 GLES2_DestroyRenderer(renderer);
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1089 SDL_OutOfMemory();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1090 return NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1091 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1092 renderer->info = GLES2_RenderDriver.info;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1093 renderer->window = window;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1094 renderer->driverdata = rdata;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1095
5207 daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h Sam Lantinga <slouken@libsdl.org> parents: 5205 diff changeset	1096 renderer->info.flags = SDL_RENDERER_ACCELERATED;
daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h Sam Lantinga <slouken@libsdl.org> parents: 5205 diff changeset	1097
5212 115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	1098 /* Create an OpenGL ES 2.0 context */
115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	1099 SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	1100 SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	1101
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1102 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	1103 if (!rdata->context)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1104 {
5212 115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	1105 GLES2_DestroyRenderer(renderer);
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1106 return NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1107 }
5205 1f2b17f42fd0 Removed extra unneeded pixel formats, added support for VSYNC on other platforms besides Zune HD. Sam Lantinga <slouken@libsdl.org> parents: 5204 diff changeset	1108 if (SDL_GL_MakeCurrent(window, rdata->context) < 0) {
5212 115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	1109 GLES2_DestroyRenderer(renderer);
5205 1f2b17f42fd0 Removed extra unneeded pixel formats, added support for VSYNC on other platforms besides Zune HD. Sam Lantinga <slouken@libsdl.org> parents: 5204 diff changeset	1110 return NULL;
1f2b17f42fd0 Removed extra unneeded pixel formats, added support for VSYNC on other platforms besides Zune HD. Sam Lantinga <slouken@libsdl.org> parents: 5204 diff changeset	1111 }
1f2b17f42fd0 Removed extra unneeded pixel formats, added support for VSYNC on other platforms besides Zune HD. Sam Lantinga <slouken@libsdl.org> parents: 5204 diff changeset	1112
1f2b17f42fd0 Removed extra unneeded pixel formats, added support for VSYNC on other platforms besides Zune HD. Sam Lantinga <slouken@libsdl.org> parents: 5204 diff changeset	1113 if (flags & SDL_RENDERER_PRESENTVSYNC) {
1f2b17f42fd0 Removed extra unneeded pixel formats, added support for VSYNC on other platforms besides Zune HD. Sam Lantinga <slouken@libsdl.org> parents: 5204 diff changeset	1114 SDL_GL_SetSwapInterval(1);
1f2b17f42fd0 Removed extra unneeded pixel formats, added support for VSYNC on other platforms besides Zune HD. Sam Lantinga <slouken@libsdl.org> parents: 5204 diff changeset	1115 } else {
1f2b17f42fd0 Removed extra unneeded pixel formats, added support for VSYNC on other platforms besides Zune HD. Sam Lantinga <slouken@libsdl.org> parents: 5204 diff changeset	1116 SDL_GL_SetSwapInterval(0);
1f2b17f42fd0 Removed extra unneeded pixel formats, added support for VSYNC on other platforms besides Zune HD. Sam Lantinga <slouken@libsdl.org> parents: 5204 diff changeset	1117 }
1f2b17f42fd0 Removed extra unneeded pixel formats, added support for VSYNC on other platforms besides Zune HD. Sam Lantinga <slouken@libsdl.org> parents: 5204 diff changeset	1118 if (SDL_GL_GetSwapInterval() > 0) {
1f2b17f42fd0 Removed extra unneeded pixel formats, added support for VSYNC on other platforms besides Zune HD. Sam Lantinga <slouken@libsdl.org> parents: 5204 diff changeset	1119 renderer->info.flags \|= SDL_RENDERER_PRESENTVSYNC;
1f2b17f42fd0 Removed extra unneeded pixel formats, added support for VSYNC on other platforms besides Zune HD. Sam Lantinga <slouken@libsdl.org> parents: 5204 diff changeset	1120 }
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1121
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1122 /* Determine supported shader formats */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1123 /* 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	1124 glGetError();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1125 #ifdef ZUNE_HD
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1126 nFormats = 1;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1127 #else /* !ZUNE_HD */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1128 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	1129 glGetBooleanv(GL_SHADER_COMPILER, &hasCompiler);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1130 if (hasCompiler)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1131 ++nFormats;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1132 #endif /* ZUNE_HD */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1133 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	1134 if (!rdata->shader_formats)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1135 {
5212 115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	1136 GLES2_DestroyRenderer(renderer);
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1137 SDL_OutOfMemory();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1138 return NULL;
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 rdata->shader_format_count = nFormats;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1141 #ifdef ZUNE_HD
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1142 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	1143 #else /* !ZUNE_HD */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1144 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	1145 if (glGetError() != GL_NO_ERROR)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1146 {
5212 115fff0641ee Prefer the OpenGL ES 2.0 context when it's available, make it possible to create an OpenGL 2.0 context on iPhoneOS Sam Lantinga <slouken@libsdl.org> parents: 5209 diff changeset	1147 GLES2_DestroyRenderer(renderer);
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1148 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	1149 return NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1150 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1151 if (hasCompiler)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1152 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	1153 #endif /* ZUNE_HD */
5216 25ad4a50d34f OpenGL ES 2.0 rendering LIVES! Sam Lantinga <slouken@libsdl.org> parents: 5215 diff changeset	1154
25ad4a50d34f OpenGL ES 2.0 rendering LIVES! Sam Lantinga <slouken@libsdl.org> parents: 5215 diff changeset	1155 rdata->updateSize = SDL_TRUE;
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1156
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1157 /* 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	1158 renderer->WindowEvent = &GLES2_WindowEvent;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1159 renderer->CreateTexture = &GLES2_CreateTexture;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1160 renderer->UpdateTexture = &GLES2_UpdateTexture;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1161 renderer->LockTexture = &GLES2_LockTexture;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1162 renderer->UnlockTexture = &GLES2_UnlockTexture;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1163 renderer->RenderClear = &GLES2_RenderClear;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1164 renderer->RenderDrawPoints = &GLES2_RenderDrawPoints;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1165 renderer->RenderDrawLines = &GLES2_RenderDrawLines;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1166 renderer->RenderFillRects = &GLES2_RenderFillRects;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1167 renderer->RenderCopy = &GLES2_RenderCopy;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1168 renderer->RenderPresent = &GLES2_RenderPresent;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1169 renderer->DestroyTexture = &GLES2_DestroyTexture;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1170 renderer->DestroyRenderer = &GLES2_DestroyRenderer;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1171 return renderer;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1172 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1173
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1174 #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	1175
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1176 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/render/opengles2/SDL_render_gles2.c @ 5217:b0797947dd1c