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

annotate src/render/opengles2/SDL_render_gles2.c @ 5254:7a963be087ef

Mostly fixed fullscreen mode on Mac OS X, and you can toggle it on and off. There are still some problems with the ConvertNSRect() calculations when switching video modes, which causes wierd window positioning issues, and the fullscreen window is still minimized on exit.

author	Sam Lantinga <slouken@libsdl.org>
date	Fri, 11 Feb 2011 00:25:44 -0800
parents	9c0c4d767ef6
children	62d2bc792002

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
5231 710d00cb3a6a Made it possible to disable the rendering subsystem with configure --disable-render Sam Lantinga <slouken@libsdl.org> parents: 5229 diff changeset	26 #if SDL_VIDEO_RENDER_OGL_ES2 && !SDL_RENDER_DISABLED
5204 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
5229 2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	136 static int GLES2_ActivateRenderer(SDL_Renderer *renderer);
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	137 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	138 const SDL_WindowEvent *event);
5229 2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	139 static void GLES2_SetClipRect(SDL_Renderer * renderer, const SDL_Rect * rect);
5204 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
5229 2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	182 GLES2_SetClipRect(SDL_Renderer * renderer, const SDL_Rect * rect)
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	183 {
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	184 GLES2_ActivateRenderer(renderer);
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	185
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	186 if (rect) {
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	187 int w, h;
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	188
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	189 SDL_GetWindowSize(renderer->window, &w, &h);
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	190 glScissor(rect->x, (h-(rect->y+rect->h)), rect->w, rect->h);
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	191 glEnable(GL_SCISSOR_TEST);
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	192 } else {
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	193 glDisable(GL_SCISSOR_TEST);
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	194 }
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	195 }
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	196
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	197 static void
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	198 GLES2_DestroyRenderer(SDL_Renderer *renderer)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	199 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	200 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	201 GLES2_ProgramCacheEntry *entry;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	202 GLES2_ProgramCacheEntry *next;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	203
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	204 /* 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	205 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	206 GLES2_ActivateRenderer(renderer);
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	207
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	208 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	209 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	210 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	211 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	212 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	213 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	214 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	215 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	216 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	217 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	218 }
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	219 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	220 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	221 }
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	222 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	223 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	224 }
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	225 SDL_free(rdata);
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	226 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	227 SDL_free(renderer);
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
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	230 /*************************************************************************************************
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	231 * Texture APIs *
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	232 *************************************************************************************************/
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 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	235 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	236 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	237 void *pixels, int pitch);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	238 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	239 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	240 const void *pixels, int pitch);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	241
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	242 static int
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	243 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	244 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	245 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	246 GLES2_TextureData *tdata;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	247 GLenum format;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	248 GLenum type;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	249
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	250 GLES2_ActivateRenderer(renderer);
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 /* 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	253 switch (texture->format)
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 case SDL_PIXELFORMAT_ABGR8888:
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	256 format = GL_RGBA;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	257 type = GL_UNSIGNED_BYTE;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	258 break;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	259 default:
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	260 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	261 return -1;
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
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	264 /* Allocate a texture struct */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	265 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	266 if (!tdata)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	267 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	268 SDL_OutOfMemory();
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 tdata->texture = 0;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	272 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	273 tdata->pixel_format = format;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	274 tdata->pixel_type = type;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	275
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	276 /* 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	277 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	278 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	279 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	280 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	281 if (!tdata->pixel_data)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	282 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	283 SDL_OutOfMemory();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	284 SDL_free(tdata);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	285 return -1;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	286 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	287 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	288
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	289 /* Allocate the texture */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	290 glGetError();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	291 glGenTextures(1, &tdata->texture);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	292 glActiveTexture(GL_TEXTURE0);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	293 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	294 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	295 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	296 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	297 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	298 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	299 if (glGetError() != GL_NO_ERROR)
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 SDL_SetError("Texture creation failed");
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	302 glDeleteTextures(1, &tdata->texture);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	303 SDL_free(tdata);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	304 return -1;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	305 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	306 texture->driverdata = tdata;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	307 return 0;
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 static void
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	311 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	312 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	313 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	314
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	315 GLES2_ActivateRenderer(renderer);
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 /* Destroy the texture */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	318 if (tdata)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	319 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	320 glDeleteTextures(1, &tdata->texture);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	321 SDL_free(tdata->pixel_data);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	322 SDL_free(tdata);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	323 texture->driverdata = NULL;
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
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	327 static int
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	328 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	329 void *pixels, int pitch)
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_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	332
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	333 /* 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	334 pixels = (Uint8 )tdata->pixel_data +
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	335 (tdata->pitch * rect->y) +
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	336 (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	337 *pitch = tdata->pitch;
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 return 0;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	340 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	341
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	342 static void
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	343 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	344 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	345 GLES2_TextureData tdata = (GLES2_TextureData )texture->driverdata;
5232 9c0c4d767ef6 Reduce duplicated code in the texture update code paths Sam Lantinga <slouken@libsdl.org> parents: 5231 diff changeset	346 SDL_Rect rect;
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	347
5232 9c0c4d767ef6 Reduce duplicated code in the texture update code paths Sam Lantinga <slouken@libsdl.org> parents: 5231 diff changeset	348 /* We do whole texture updates, at least for now */
9c0c4d767ef6 Reduce duplicated code in the texture update code paths Sam Lantinga <slouken@libsdl.org> parents: 5231 diff changeset	349 rect.x = 0;
9c0c4d767ef6 Reduce duplicated code in the texture update code paths Sam Lantinga <slouken@libsdl.org> parents: 5231 diff changeset	350 rect.y = 0;
9c0c4d767ef6 Reduce duplicated code in the texture update code paths Sam Lantinga <slouken@libsdl.org> parents: 5231 diff changeset	351 rect.w = texture->w;
9c0c4d767ef6 Reduce duplicated code in the texture update code paths Sam Lantinga <slouken@libsdl.org> parents: 5231 diff changeset	352 rect.h = texture->h;
9c0c4d767ef6 Reduce duplicated code in the texture update code paths Sam Lantinga <slouken@libsdl.org> parents: 5231 diff changeset	353 GLES2_UpdateTexture(renderer, texture, &rect, tdata->pixel_data, tdata->pitch);
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	354 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	355
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	356 static int
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	357 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	358 const void *pixels, int pitch)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	359 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	360 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	361 Uint8 *blob = NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	362 Uint8 *src;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	363 int srcPitch;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	364 int y;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	365
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	366 GLES2_ActivateRenderer(renderer);
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 /* 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	369 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	370 return 0;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	371
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	372 /* 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	373 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	374 src = (Uint8 *)pixels;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	375 if (pitch != srcPitch)
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 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	378 if (!blob)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	379 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	380 SDL_OutOfMemory();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	381 return -1;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	382 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	383 src = blob;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	384 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	385 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	386 SDL_memcpy(src, pixels, srcPitch);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	387 src += srcPitch;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	388 pixels = (Uint8 *)pixels + pitch;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	389 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	390 src = blob;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	391 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	392
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	393 /* 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	394 glGetError();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	395 glActiveTexture(GL_TEXTURE0);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	396 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	397 glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	398 glTexSubImage2D(tdata->texture_type,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	399 0,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	400 rect->x,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	401 rect->y,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	402 rect->w,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	403 rect->h,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	404 tdata->pixel_format,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	405 tdata->pixel_type,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	406 src);
5232 9c0c4d767ef6 Reduce duplicated code in the texture update code paths Sam Lantinga <slouken@libsdl.org> parents: 5231 diff changeset	407 if (blob) {
9c0c4d767ef6 Reduce duplicated code in the texture update code paths Sam Lantinga <slouken@libsdl.org> parents: 5231 diff changeset	408 SDL_free(blob);
9c0c4d767ef6 Reduce duplicated code in the texture update code paths Sam Lantinga <slouken@libsdl.org> parents: 5231 diff changeset	409 }
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	410
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	411 if (glGetError() != GL_NO_ERROR)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	412 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	413 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	414 return -1;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	415 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	416 return 0;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	417 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	418
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	419 /*************************************************************************************************
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	420 * Shader management functions *
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	421 *************************************************************************************************/
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	422
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	423 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	424 SDL_BlendMode blendMode);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	425 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	426 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	427 GLES2_ShaderCacheEntry *vertex,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	428 GLES2_ShaderCacheEntry *fragment,
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	429 SDL_BlendMode blendMode);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	430 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	431 SDL_BlendMode blendMode);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	432 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	433
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	434 static GLES2_ProgramCacheEntry *
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	435 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	436 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	437 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	438 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	439 GLES2_ProgramCacheEntry *entry;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	440 GLES2_ShaderCacheEntry *shaderEntry;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	441 GLint linkSuccessful;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	442
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	443 /* 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	444 entry = rdata->program_cache.head;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	445 while (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 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	448 break;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	449 entry = entry->next;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	450 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	451 if (entry)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	452 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	453 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	454 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	455 if (entry->next)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	456 entry->next->prev = entry->prev;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	457 if (entry->prev)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	458 entry->prev->next = entry->next;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	459 entry->prev = NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	460 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	461 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	462 rdata->program_cache.head = entry;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	463 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	464 return entry;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	465 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	466
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	467 /* Create a program cache entry */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	468 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	469 if (!entry)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	470 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	471 SDL_OutOfMemory();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	472 return NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	473 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	474 entry->vertex_shader = vertex;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	475 entry->fragment_shader = fragment;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	476 entry->blend_mode = blendMode;
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 /* 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	479 glGetError();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	480 entry->id = glCreateProgram();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	481 glAttachShader(entry->id, vertex->id);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	482 glAttachShader(entry->id, fragment->id);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	483 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	484 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	485 glLinkProgram(entry->id);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	486 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	487 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	488 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	489 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	490 glDeleteProgram(entry->id);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	491 SDL_free(entry);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	492 return NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	493 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	494
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	495 /* Predetermine locations of uniform variables */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	496 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	497 glGetUniformLocation(entry->id, "u_projection");
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	498 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	499 glGetUniformLocation(entry->id, "u_texture");
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	500 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	501 glGetUniformLocation(entry->id, "u_modulation");
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	502 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	503 glGetUniformLocation(entry->id, "u_color");
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	504 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	505 glGetUniformLocation(entry->id, "u_colorTable");
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 /* Cache the linked program */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	508 if (rdata->program_cache.head)
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 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	511 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	512 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	513 else
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	514 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	515 rdata->program_cache.tail = entry;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	516 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	517 rdata->program_cache.head = entry;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	518 ++rdata->program_cache.count;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	519
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	520 /* 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	521 ++vertex->references;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	522 ++fragment->references;
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 /* 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	525 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	526 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	527 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	528 if (--shaderEntry->references <= 0)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	529 GLES2_EvictShader(renderer, shaderEntry);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	530 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	531 if (--shaderEntry->references <= 0)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	532 GLES2_EvictShader(renderer, shaderEntry);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	533 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	534 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	535 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	536 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	537 --rdata->program_cache.count;
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 return entry;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	540 }
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 static GLES2_ShaderCacheEntry *
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	543 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	544 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	545 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	546 const GLES2_Shader *shader;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	547 const GLES2_ShaderInstance *instance = NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	548 GLES2_ShaderCacheEntry *entry = NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	549 GLint compileSuccessful = GL_FALSE;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	550 int i, j;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	551
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	552 /* Find the corresponding shader */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	553 shader = GLES2_GetShader(type, blendMode);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	554 if (!shader)
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 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	557 return NULL;
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
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	560 /* 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	561 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	562 {
5209 7d64745f1363 Fixed crash when binary shaders are not available. Sam Lantinga <slouken@libsdl.org> parents: 5207 diff changeset	563 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	564 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	565 if (!shader->instances)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	566 continue;
5209 7d64745f1363 Fixed crash when binary shaders are not available. Sam Lantinga <slouken@libsdl.org> parents: 5207 diff changeset	567 if (!shader->instances[i])
7d64745f1363 Fixed crash when binary shaders are not available. Sam Lantinga <slouken@libsdl.org> parents: 5207 diff changeset	568 continue;
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	569 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	570 continue;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	571 instance = shader->instances[i];
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	572 }
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 if (!instance)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	575 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	576 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	577 return NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	578 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	579
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	580 /* 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	581 entry = rdata->shader_cache.head;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	582 while (entry)
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 if (entry->instance == instance)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	585 break;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	586 entry = entry->next;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	587 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	588 if (entry)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	589 return entry;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	590
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	591 /* Create a shader cache entry */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	592 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	593 if (!entry)
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 SDL_OutOfMemory();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	596 return NULL;
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 entry->type = type;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	599 entry->instance = instance;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	600
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	601 /* 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	602 glGetError();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	603 entry->id = glCreateShader(instance->type);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	604 if (instance->format == (GLenum)-1)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	605 {
5215 7b6101f3ea58 Fixed compiling source shaders Sam Lantinga <slouken@libsdl.org> parents: 5212 diff changeset	606 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	607 glCompileShader(entry->id);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	608 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	609 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	610 else
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	611 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	612 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	613 compileSuccessful = GL_TRUE;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	614 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	615 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	616 {
5215 7b6101f3ea58 Fixed compiling source shaders Sam Lantinga <slouken@libsdl.org> parents: 5212 diff changeset	617 char *info = NULL;
7b6101f3ea58 Fixed compiling source shaders Sam Lantinga <slouken@libsdl.org> parents: 5212 diff changeset	618 int length;
7b6101f3ea58 Fixed compiling source shaders Sam Lantinga <slouken@libsdl.org> parents: 5212 diff changeset	619
7b6101f3ea58 Fixed compiling source shaders Sam Lantinga <slouken@libsdl.org> parents: 5212 diff changeset	620 glGetShaderiv(entry->id, GL_INFO_LOG_LENGTH, &length);
7b6101f3ea58 Fixed compiling source shaders Sam Lantinga <slouken@libsdl.org> parents: 5212 diff changeset	621 if (length > 0) {
7b6101f3ea58 Fixed compiling source shaders Sam Lantinga <slouken@libsdl.org> parents: 5212 diff changeset	622 info = SDL_stack_alloc(char, length);
7b6101f3ea58 Fixed compiling source shaders Sam Lantinga <slouken@libsdl.org> parents: 5212 diff changeset	623 if (info) {
7b6101f3ea58 Fixed compiling source shaders Sam Lantinga <slouken@libsdl.org> parents: 5212 diff changeset	624 glGetShaderInfoLog(entry->id, length, &length, info);
7b6101f3ea58 Fixed compiling source shaders Sam Lantinga <slouken@libsdl.org> parents: 5212 diff changeset	625 }
7b6101f3ea58 Fixed compiling source shaders Sam Lantinga <slouken@libsdl.org> parents: 5212 diff changeset	626 }
7b6101f3ea58 Fixed compiling source shaders Sam Lantinga <slouken@libsdl.org> parents: 5212 diff changeset	627 if (info) {
7b6101f3ea58 Fixed compiling source shaders Sam Lantinga <slouken@libsdl.org> parents: 5212 diff changeset	628 SDL_SetError("Failed to load the shader: %s", info);
7b6101f3ea58 Fixed compiling source shaders Sam Lantinga <slouken@libsdl.org> parents: 5212 diff changeset	629 SDL_stack_free(info);
7b6101f3ea58 Fixed compiling source shaders Sam Lantinga <slouken@libsdl.org> parents: 5212 diff changeset	630 } else {
7b6101f3ea58 Fixed compiling source shaders Sam Lantinga <slouken@libsdl.org> parents: 5212 diff changeset	631 SDL_SetError("Failed to load the shader");
7b6101f3ea58 Fixed compiling source shaders Sam Lantinga <slouken@libsdl.org> parents: 5212 diff changeset	632 }
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	633 glDeleteShader(entry->id);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	634 SDL_free(entry);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	635 return NULL;
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
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	638 /* 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	639 if (rdata->shader_cache.head)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	640 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	641 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	642 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	643 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	644 rdata->shader_cache.head = entry;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	645 ++rdata->shader_cache.count;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	646 return entry;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	647 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	648
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	649 static void
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	650 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	651 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	652 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	653
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	654 /* 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	655 if (entry->next)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	656 entry->next->prev = entry->prev;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	657 if (entry->prev)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	658 entry->prev->next = entry->next;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	659 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	660 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	661 --rdata->shader_cache.count;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	662
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	663 /* Deallocate the shader */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	664 glDeleteShader(entry->id);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	665 SDL_free(entry);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	666 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	667
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	668 static int
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	669 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	670 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	671 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	672 GLES2_ShaderCacheEntry *vertex = NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	673 GLES2_ShaderCacheEntry *fragment = NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	674 GLES2_ShaderType vtype, ftype;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	675 GLES2_ProgramCacheEntry *program;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	676
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	677 /* 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	678 vtype = GLES2_SHADER_VERTEX_DEFAULT;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	679 switch (source)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	680 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	681 case GLES2_IMAGESOURCE_SOLID:
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	682 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	683 break;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	684 case GLES2_IMAGESOURCE_TEXTURE:
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	685 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	686 break;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	687 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	688
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	689 /* Load the requested shaders */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	690 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	691 if (!vertex)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	692 goto fault;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	693 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	694 if (!fragment)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	695 goto fault;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	696
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	697 /* 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	698 if (rdata->current_program &&
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	699 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	700 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	701 return 0;
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 /* Generate a matching program */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	704 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	705 if (!program)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	706 goto fault;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	707
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	708 /* Select that program in OpenGL */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	709 glGetError();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	710 glUseProgram(program->id);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	711 if (glGetError() != GL_NO_ERROR)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	712 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	713 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	714 goto fault;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	715 }
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 /* Set the current program */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	718 rdata->current_program = program;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	719
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	720 /* Activate an orthographic projection */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	721 if (GLES2_SetOrthographicProjection(renderer) < 0)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	722 goto fault;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	723
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	724 /* Clean up and return */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	725 return 0;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	726 fault:
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	727 if (vertex && vertex->references <= 0)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	728 GLES2_EvictShader(renderer, vertex);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	729 if (fragment && fragment->references <= 0)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	730 GLES2_EvictShader(renderer, fragment);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	731 rdata->current_program = NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	732 return -1;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	733 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	734
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	735 static int
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	736 GLES2_SetOrthographicProjection(SDL_Renderer *renderer)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	737 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	738 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	739 SDL_Window *window = renderer->window;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	740 int w, h;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	741 GLfloat projection[4][4];
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	742 GLuint locProjection;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	743
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	744 /* 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	745 SDL_GetWindowSize(window, &w, &h);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	746
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	747 /* Prepare an orthographic projection */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	748 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	749 projection[0][1] = 0.0f;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	750 projection[0][2] = 0.0f;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	751 projection[0][3] = 0.0f;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	752 projection[1][0] = 0.0f;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	753 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	754 projection[1][2] = 0.0f;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	755 projection[1][3] = 0.0f;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	756 projection[2][0] = 0.0f;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	757 projection[2][1] = 0.0f;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	758 projection[2][2] = 1.0f;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	759 projection[2][3] = 0.0f;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	760 projection[3][0] = -1.0f;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	761 projection[3][1] = 1.0f;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	762 projection[3][2] = 0.0f;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	763 projection[3][3] = 1.0f;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	764
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	765 /* Set the projection matrix */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	766 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	767 glGetError();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	768 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	769 if (glGetError() != GL_NO_ERROR)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	770 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	771 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	772 return -1;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	773 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	774 return 0;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	775 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	776
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	777 /*************************************************************************************************
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	778 * Rendering functions *
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
5229 2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	781 static const float inv255f = 1.0f / 255.0f;
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	782
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	783 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	784 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	785 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	786 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	787 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	788 const SDL_Rect *dstrect);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	789 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	790
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	791 static int
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	792 GLES2_RenderClear(SDL_Renderer *renderer)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	793 {
5229 2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	794 float r = (float)renderer->r * inv255f;
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	795 float g = (float)renderer->g * inv255f;
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	796 float b = (float)renderer->b * inv255f;
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	797 float a = (float)renderer->a * inv255f;
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	798
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	799 GLES2_ActivateRenderer(renderer);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	800
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	801 /* 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	802 glClearColor(r, g, b, a);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	803 glClear(GL_COLOR_BUFFER_BIT);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	804 return 0;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	805 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	806
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	807 static void
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	808 GLES2_SetBlendMode(int blendMode)
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 switch (blendMode)
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 case SDL_BLENDMODE_NONE:
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	813 default:
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	814 glDisable(GL_BLEND);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	815 break;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	816 case SDL_BLENDMODE_BLEND:
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	817 glEnable(GL_BLEND);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	818 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	819 break;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	820 case SDL_BLENDMODE_ADD:
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	821 glEnable(GL_BLEND);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	822 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	823 break;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	824 case SDL_BLENDMODE_MOD:
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	825 glEnable(GL_BLEND);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	826 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	827 break;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	828 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	829 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	830
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	831 static int
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	832 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	833 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	834 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	835 GLfloat *vertices;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	836 SDL_BlendMode blendMode;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	837 int alpha;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	838 GLuint locColor;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	839 int idx;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	840
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	841 GLES2_ActivateRenderer(renderer);
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 blendMode = renderer->blendMode;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	844 alpha = renderer->a;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	845
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	846 /* 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	847 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	848 return -1;
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 /* 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	851 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	852 glGetError();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	853 glUniform4f(locColor,
5229 2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	854 renderer->r * inv255f,
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	855 renderer->g * inv255f,
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	856 renderer->b * inv255f,
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	857 alpha * inv255f);
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	858
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	859 /* Configure the correct blend mode */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	860 GLES2_SetBlendMode(blendMode);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	861
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	862 /* 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	863 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	864 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	865 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	866 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	867 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	868
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	869 vertices[idx * 2] = x;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	870 vertices[(idx * 2) + 1] = y;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	871 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	872 glEnableVertexAttribArray(GLES2_ATTRIBUTE_POSITION);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	873 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	874 glDrawArrays(GL_POINTS, 0, count);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	875 glDisableVertexAttribArray(GLES2_ATTRIBUTE_POSITION);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	876 SDL_stack_free(vertices);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	877 if (glGetError() != GL_NO_ERROR)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	878 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	879 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	880 return -1;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	881 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	882 return 0;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	883 }
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 static int
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	886 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	887 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	888 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	889 GLfloat *vertices;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	890 SDL_BlendMode blendMode;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	891 int alpha;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	892 GLuint locColor;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	893 int idx;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	894
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	895 GLES2_ActivateRenderer(renderer);
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 blendMode = renderer->blendMode;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	898 alpha = renderer->a;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	899
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	900 /* 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	901 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	902 return -1;
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 /* 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	905 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	906 glGetError();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	907 glUniform4f(locColor,
5229 2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	908 renderer->r * inv255f,
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	909 renderer->g * inv255f,
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	910 renderer->b * inv255f,
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	911 alpha * inv255f);
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	912
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	913 /* Configure the correct blend mode */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	914 GLES2_SetBlendMode(blendMode);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	915
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	916 /* 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	917 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	918 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	919 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	920 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	921 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	922
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	923 vertices[idx * 2] = x;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	924 vertices[(idx * 2) + 1] = y;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	925 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	926 glEnableVertexAttribArray(GLES2_ATTRIBUTE_POSITION);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	927 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	928 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	929 glDisableVertexAttribArray(GLES2_ATTRIBUTE_POSITION);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	930 SDL_stack_free(vertices);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	931 if (glGetError() != GL_NO_ERROR)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	932 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	933 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	934 return -1;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	935 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	936 return 0;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	937 }
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 static int
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	940 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	941 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	942 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	943 GLfloat vertices[8];
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	944 SDL_BlendMode blendMode;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	945 int alpha;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	946 GLuint locColor;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	947 int idx;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	948
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	949 GLES2_ActivateRenderer(renderer);
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 blendMode = renderer->blendMode;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	952 alpha = renderer->a;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	953
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	954 /* 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	955 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	956 return -1;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	957
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	958 /* 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	959 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	960 glGetError();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	961 glUniform4f(locColor,
5229 2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	962 renderer->r * inv255f,
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	963 renderer->g * inv255f,
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	964 renderer->b * inv255f,
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	965 alpha * inv255f);
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	966
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	967 /* Configure the correct blend mode */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	968 GLES2_SetBlendMode(blendMode);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	969
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	970 /* 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	971 glEnableVertexAttribArray(GLES2_ATTRIBUTE_POSITION);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	972 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	973 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	974 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	975 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	976 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	977 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	978
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	979 vertices[0] = xMin;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	980 vertices[1] = yMin;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	981 vertices[2] = xMax;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	982 vertices[3] = yMin;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	983 vertices[4] = xMin;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	984 vertices[5] = yMax;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	985 vertices[6] = xMax;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	986 vertices[7] = yMax;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	987 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	988 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	989 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	990 glDisableVertexAttribArray(GLES2_ATTRIBUTE_POSITION);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	991 if (glGetError() != GL_NO_ERROR)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	992 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	993 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	994 return -1;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	995 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	996 return 0;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	997 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	998
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	999 static int
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1000 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	1001 const SDL_Rect *dstrect)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1002 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1003 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	1004 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	1005 GLES2_ImageSource sourceType;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1006 SDL_BlendMode blendMode;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1007 int alpha;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1008 GLfloat vertices[8];
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1009 GLfloat texCoords[8];
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1010 GLuint locTexture;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1011 GLuint locModulation;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1012 GLuint locColorTable;
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 GLES2_ActivateRenderer(renderer);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1015
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1016 /* 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	1017 blendMode = texture->blendMode;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1018 alpha = texture->a;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1019 sourceType = GLES2_IMAGESOURCE_TEXTURE;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1020 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	1021 return -1;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1022
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1023 /* Select the target texture */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1024 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	1025 glGetError();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1026 glActiveTexture(GL_TEXTURE0);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1027 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	1028 glUniform1i(locTexture, 0);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1029
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1030 /* Configure texture blending */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1031 GLES2_SetBlendMode(blendMode);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1032
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1033 /* Configure color modulation */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1034 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	1035 glUniform4f(locModulation,
5229 2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	1036 texture->r * inv255f,
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	1037 texture->g * inv255f,
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	1038 texture->b * inv255f,
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	1039 alpha * inv255f);
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1040
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1041 /* Emit the textured quad */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1042 glEnableVertexAttribArray(GLES2_ATTRIBUTE_TEXCOORD);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1043 glEnableVertexAttribArray(GLES2_ATTRIBUTE_POSITION);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1044 vertices[0] = (GLfloat)dstrect->x;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1045 vertices[1] = (GLfloat)dstrect->y;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1046 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	1047 vertices[3] = (GLfloat)dstrect->y;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1048 vertices[4] = (GLfloat)dstrect->x;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1049 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	1050 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	1051 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	1052 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	1053 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	1054 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	1055 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	1056 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	1057 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	1058 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	1059 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	1060 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	1061 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	1062 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	1063 glDisableVertexAttribArray(GLES2_ATTRIBUTE_POSITION);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1064 glDisableVertexAttribArray(GLES2_ATTRIBUTE_TEXCOORD);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1065 if (glGetError() != GL_NO_ERROR)
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 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	1068 return -1;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1069 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1070 return 0;
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
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1073 static void
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1074 GLES2_RenderPresent(SDL_Renderer *renderer)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1075 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1076 GLES2_ActivateRenderer(renderer);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1077
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1078 /* 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	1079 SDL_GL_SwapWindow(renderer->window);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1080 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1081
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1082 /*************************************************************************************************
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1083 * Renderer instantiation *
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1084 *************************************************************************************************/
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1085
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1086 #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	1087
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1088 static SDL_Renderer *
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1089 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	1090 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1091 SDL_Renderer *renderer;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1092 GLES2_DriverContext *rdata;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1093 GLint nFormats;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1094 #ifndef ZUNE_HD
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1095 GLboolean hasCompiler;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1096 #endif
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1097
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1098 /* Create the renderer struct */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1099 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	1100 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	1101 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	1102 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	1103 }
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	1104
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1105 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	1106 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	1107 GLES2_DestroyRenderer(renderer);
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1108 SDL_OutOfMemory();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1109 return NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1110 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1111 renderer->info = GLES2_RenderDriver.info;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1112 renderer->window = window;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1113 renderer->driverdata = rdata;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1114
5207 daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h Sam Lantinga <slouken@libsdl.org> parents: 5205 diff changeset	1115 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	1116
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	1117 /* 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	1118 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	1119 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	1120
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1121 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	1122 if (!rdata->context)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1123 {
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	1124 GLES2_DestroyRenderer(renderer);
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1125 return NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1126 }
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	1127 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	1128 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	1129 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	1130 }
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	1131
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	1132 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	1133 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	1134 } 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	1135 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	1136 }
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	1137 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	1138 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	1139 }
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1140
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1141 /* Determine supported shader formats */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1142 /* 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	1143 glGetError();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1144 #ifdef ZUNE_HD
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1145 nFormats = 1;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1146 #else /* !ZUNE_HD */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1147 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	1148 glGetBooleanv(GL_SHADER_COMPILER, &hasCompiler);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1149 if (hasCompiler)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1150 ++nFormats;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1151 #endif /* ZUNE_HD */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1152 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	1153 if (!rdata->shader_formats)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1154 {
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	1155 GLES2_DestroyRenderer(renderer);
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1156 SDL_OutOfMemory();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1157 return NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1158 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1159 rdata->shader_format_count = nFormats;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1160 #ifdef ZUNE_HD
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1161 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	1162 #else /* !ZUNE_HD */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1163 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	1164 if (glGetError() != GL_NO_ERROR)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1165 {
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	1166 GLES2_DestroyRenderer(renderer);
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1167 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	1168 return NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1169 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1170 if (hasCompiler)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1171 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	1172 #endif /* ZUNE_HD */
5216 25ad4a50d34f OpenGL ES 2.0 rendering LIVES! Sam Lantinga <slouken@libsdl.org> parents: 5215 diff changeset	1173
25ad4a50d34f OpenGL ES 2.0 rendering LIVES! Sam Lantinga <slouken@libsdl.org> parents: 5215 diff changeset	1174 rdata->updateSize = SDL_TRUE;
5204 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 /* 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	1177 renderer->WindowEvent = &GLES2_WindowEvent;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1178 renderer->CreateTexture = &GLES2_CreateTexture;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1179 renderer->UpdateTexture = &GLES2_UpdateTexture;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1180 renderer->LockTexture = &GLES2_LockTexture;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1181 renderer->UnlockTexture = &GLES2_UnlockTexture;
5229 2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	1182 renderer->SetClipRect = &GLES2_SetClipRect;
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1183 renderer->RenderClear = &GLES2_RenderClear;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1184 renderer->RenderDrawPoints = &GLES2_RenderDrawPoints;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1185 renderer->RenderDrawLines = &GLES2_RenderDrawLines;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1186 renderer->RenderFillRects = &GLES2_RenderFillRects;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1187 renderer->RenderCopy = &GLES2_RenderCopy;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1188 renderer->RenderPresent = &GLES2_RenderPresent;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1189 renderer->DestroyTexture = &GLES2_DestroyTexture;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1190 renderer->DestroyRenderer = &GLES2_DestroyRenderer;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1191 return renderer;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1192 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1193
5231 710d00cb3a6a Made it possible to disable the rendering subsystem with configure --disable-render Sam Lantinga <slouken@libsdl.org> parents: 5229 diff changeset	1194 #endif /* SDL_VIDEO_RENDER_OGL_ES2 && !SDL_RENDER_DISABLED */
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1195
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1196 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/render/opengles2/SDL_render_gles2.c @ 5254:7a963be087ef