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

annotate src/render/opengles2/SDL_render_gles2.c @ 5232:9c0c4d767ef6

Reduce duplicated code in the texture update code paths

author	Sam Lantinga <slouken@libsdl.org>
date	Tue, 08 Feb 2011 10:38:12 -0800
parents	710d00cb3a6a
children	7a963be087ef

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
5229 2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	1088 /* Used to re-create the window with OpenGL capability */
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	1089 extern int SDL_RecreateWindow(SDL_Window * window, Uint32 flags);
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	1090
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1091 static SDL_Renderer *
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1092 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	1093 {
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1094 SDL_Renderer *renderer;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1095 GLES2_DriverContext *rdata;
5227 c66b2a778b7e Try to create an OpenGL ES 2.0 context on Android and successfully fall back to OpenGL ES 1.1 if that fails. Sam Lantinga <slouken@libsdl.org> parents: 5217 diff changeset	1096 Uint32 window_flags;
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1097 GLint nFormats;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1098 #ifndef ZUNE_HD
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1099 GLboolean hasCompiler;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1100 #endif
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1101
5227 c66b2a778b7e Try to create an OpenGL ES 2.0 context on Android and successfully fall back to OpenGL ES 1.1 if that fails. Sam Lantinga <slouken@libsdl.org> parents: 5217 diff changeset	1102 window_flags = SDL_GetWindowFlags(window);
c66b2a778b7e Try to create an OpenGL ES 2.0 context on Android and successfully fall back to OpenGL ES 1.1 if that fails. Sam Lantinga <slouken@libsdl.org> parents: 5217 diff changeset	1103 if (!(window_flags & SDL_WINDOW_OPENGL)) {
c66b2a778b7e Try to create an OpenGL ES 2.0 context on Android and successfully fall back to OpenGL ES 1.1 if that fails. Sam Lantinga <slouken@libsdl.org> parents: 5217 diff changeset	1104 if (SDL_RecreateWindow(window, window_flags \| SDL_WINDOW_OPENGL) < 0) {
c66b2a778b7e Try to create an OpenGL ES 2.0 context on Android and successfully fall back to OpenGL ES 1.1 if that fails. Sam Lantinga <slouken@libsdl.org> parents: 5217 diff changeset	1105 return NULL;
c66b2a778b7e Try to create an OpenGL ES 2.0 context on Android and successfully fall back to OpenGL ES 1.1 if that fails. Sam Lantinga <slouken@libsdl.org> parents: 5217 diff changeset	1106 }
c66b2a778b7e Try to create an OpenGL ES 2.0 context on Android and successfully fall back to OpenGL ES 1.1 if that fails. Sam Lantinga <slouken@libsdl.org> parents: 5217 diff changeset	1107 }
c66b2a778b7e Try to create an OpenGL ES 2.0 context on Android and successfully fall back to OpenGL ES 1.1 if that fails. Sam Lantinga <slouken@libsdl.org> parents: 5217 diff changeset	1108
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1109 /* Create the renderer struct */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1110 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	1111 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	1112 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	1113 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	1114 }
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	1115
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1116 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	1117 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	1118 GLES2_DestroyRenderer(renderer);
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1119 SDL_OutOfMemory();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1120 return NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1121 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1122 renderer->info = GLES2_RenderDriver.info;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1123 renderer->window = window;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1124 renderer->driverdata = rdata;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1125
5207 daa5463466c5 Fixed building on Android, added SDL_opengles2.h, removed unnecessary SDL_glesfuncs.h Sam Lantinga <slouken@libsdl.org> parents: 5205 diff changeset	1126 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	1127
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 /* 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	1129 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	1130 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	1131
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1132 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	1133 if (!rdata->context)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1134 {
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	1135 GLES2_DestroyRenderer(renderer);
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1136 return NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1137 }
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	1138 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	1139 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	1140 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	1141 }
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	1142
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	1143 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	1144 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	1145 } 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	1146 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	1147 }
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	1148 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	1149 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	1150 }
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1151
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1152 /* Determine supported shader formats */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1153 /* 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	1154 glGetError();
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1155 #ifdef ZUNE_HD
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1156 nFormats = 1;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1157 #else /* !ZUNE_HD */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1158 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	1159 glGetBooleanv(GL_SHADER_COMPILER, &hasCompiler);
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1160 if (hasCompiler)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1161 ++nFormats;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1162 #endif /* ZUNE_HD */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1163 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	1164 if (!rdata->shader_formats)
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_OutOfMemory();
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 rdata->shader_format_count = nFormats;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1171 #ifdef ZUNE_HD
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1172 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	1173 #else /* !ZUNE_HD */
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1174 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	1175 if (glGetError() != GL_NO_ERROR)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1176 {
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	1177 GLES2_DestroyRenderer(renderer);
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1178 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	1179 return NULL;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1180 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1181 if (hasCompiler)
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1182 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	1183 #endif /* ZUNE_HD */
5216 25ad4a50d34f OpenGL ES 2.0 rendering LIVES! Sam Lantinga <slouken@libsdl.org> parents: 5215 diff changeset	1184
25ad4a50d34f OpenGL ES 2.0 rendering LIVES! Sam Lantinga <slouken@libsdl.org> parents: 5215 diff changeset	1185 rdata->updateSize = SDL_TRUE;
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1186
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1187 /* 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	1188 renderer->WindowEvent = &GLES2_WindowEvent;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1189 renderer->CreateTexture = &GLES2_CreateTexture;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1190 renderer->UpdateTexture = &GLES2_UpdateTexture;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1191 renderer->LockTexture = &GLES2_LockTexture;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1192 renderer->UnlockTexture = &GLES2_UnlockTexture;
5229 2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5227 diff changeset	1193 renderer->SetClipRect = &GLES2_SetClipRect;
5204 523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1194 renderer->RenderClear = &GLES2_RenderClear;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1195 renderer->RenderDrawPoints = &GLES2_RenderDrawPoints;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1196 renderer->RenderDrawLines = &GLES2_RenderDrawLines;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1197 renderer->RenderFillRects = &GLES2_RenderFillRects;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1198 renderer->RenderCopy = &GLES2_RenderCopy;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1199 renderer->RenderPresent = &GLES2_RenderPresent;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1200 renderer->DestroyTexture = &GLES2_DestroyTexture;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1201 renderer->DestroyRenderer = &GLES2_DestroyRenderer;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1202 return renderer;
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1203 }
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1204
5231 710d00cb3a6a Made it possible to disable the rendering subsystem with configure --disable-render Sam Lantinga <slouken@libsdl.org> parents: 5229 diff changeset	1205 #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	1206
523409574510 Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1207 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/render/opengles2/SDL_render_gles2.c @ 5232:9c0c4d767ef6