Mercurial > sdl-ios-xcode
annotate src/render/opengles2/SDL_render_gles2.c @ 5204:523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
This compiles, but it untested.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sun, 06 Feb 2011 00:00:13 -0800 |
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children | 1f2b17f42fd0 |
rev | line source |
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5204
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1 /* |
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2 SDL - Simple DirectMedia Layer |
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3 Copyright (C) 2010 itsnotabigtruck. |
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4 |
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5 Permission is hereby granted, free of charge, to any person obtaining a |
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6 copy of this software and associated documentation files (the "Software"), |
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7 to deal in the Software without restriction, including without limitation |
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8 the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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9 and/or sell copies of the Software, and to permit persons to whom the |
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10 Software is furnished to do so, subject to the following conditions: |
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11 |
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12 The above copyright notice and this permission notice shall be included in |
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13 all copies or substantial portions of the Software. |
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14 |
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15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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20 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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21 DEALINGS IN THE SOFTWARE. |
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22 */ |
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23 |
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24 #include "SDL_config.h" |
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25 |
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26 #if SDL_VIDEO_RENDER_OGL_ES2 |
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27 |
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28 #ifdef __IPHONEOS__ |
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29 #include <OpenGLES/ES2/gl.h> |
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30 #include <OpenGLES/ES2/glext.h> |
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31 #else |
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32 #include <GLES2/gl2.h> |
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33 #include <GLES2/gl2ext.h> |
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34 #endif |
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35 #include "../SDL_sysrender.h" |
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36 #include "SDL_shaders_gles2.h" |
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37 |
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38 /************************************************************************************************* |
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39 * Bootstrap data * |
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40 *************************************************************************************************/ |
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41 |
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42 static SDL_Renderer *GLES2_CreateRenderer(SDL_Window *window, Uint32 flags); |
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43 |
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44 SDL_RenderDriver GLES2_RenderDriver = { |
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45 GLES2_CreateRenderer, |
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46 { |
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47 "opengles2", |
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48 (SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC), |
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49 #if GLES2_ASSUME_BGRA |
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50 11, |
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51 { |
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52 SDL_PIXELFORMAT_ABGR8888, |
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53 SDL_PIXELFORMAT_ABGR4444, |
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54 SDL_PIXELFORMAT_ABGR1555, |
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55 SDL_PIXELFORMAT_BGR565, |
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56 SDL_PIXELFORMAT_BGR24, |
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57 SDL_PIXELFORMAT_ARGB8888, |
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58 SDL_PIXELFORMAT_ARGB4444, |
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59 SDL_PIXELFORMAT_ARGB1555, |
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60 SDL_PIXELFORMAT_RGB565, |
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61 SDL_PIXELFORMAT_RGB24 |
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62 }, |
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63 #elif GLES2_ASSUME_BGRA8888 |
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64 7, |
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65 { |
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66 SDL_PIXELFORMAT_ABGR8888, |
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67 SDL_PIXELFORMAT_ABGR4444, |
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68 SDL_PIXELFORMAT_ABGR1555, |
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69 SDL_PIXELFORMAT_BGR565, |
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70 SDL_PIXELFORMAT_BGR24, |
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71 SDL_PIXELFORMAT_ARGB8888 |
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72 }, |
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73 #else |
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74 6, |
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75 { |
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76 SDL_PIXELFORMAT_ABGR8888, |
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77 SDL_PIXELFORMAT_ABGR4444, |
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78 SDL_PIXELFORMAT_ABGR1555, |
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79 SDL_PIXELFORMAT_BGR565, |
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80 SDL_PIXELFORMAT_BGR24 |
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81 }, |
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82 #endif |
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83 0, |
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84 0 |
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85 } |
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86 }; |
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87 |
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88 /************************************************************************************************* |
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89 * Context structures * |
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90 *************************************************************************************************/ |
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91 |
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92 typedef struct GLES2_TextureData |
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93 { |
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94 GLenum texture; |
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95 GLenum texture_type; |
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96 GLenum pixel_format; |
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97 GLenum pixel_type; |
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98 void *pixel_data; |
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99 size_t pitch; |
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100 } GLES2_TextureData; |
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101 |
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102 typedef struct GLES2_ShaderCacheEntry |
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103 { |
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104 GLuint id; |
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105 GLES2_ShaderType type; |
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106 const GLES2_ShaderInstance *instance; |
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107 int references; |
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108 struct GLES2_ShaderCacheEntry *prev; |
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109 struct GLES2_ShaderCacheEntry *next; |
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110 } GLES2_ShaderCacheEntry; |
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111 |
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112 typedef struct GLES2_ShaderCache |
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113 { |
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114 int count; |
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115 GLES2_ShaderCacheEntry *head; |
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116 } GLES2_ShaderCache; |
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117 |
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118 typedef struct GLES2_ProgramCacheEntry |
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119 { |
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120 GLuint id; |
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121 SDL_BlendMode blend_mode; |
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122 GLES2_ShaderCacheEntry *vertex_shader; |
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123 GLES2_ShaderCacheEntry *fragment_shader; |
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124 GLuint uniform_locations[16]; |
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125 struct GLES2_ProgramCacheEntry *prev; |
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126 struct GLES2_ProgramCacheEntry *next; |
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127 } GLES2_ProgramCacheEntry; |
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128 |
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129 typedef struct GLES2_ProgramCache |
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130 { |
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131 int count; |
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132 GLES2_ProgramCacheEntry *head; |
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133 GLES2_ProgramCacheEntry *tail; |
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134 } GLES2_ProgramCache; |
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135 |
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136 typedef enum |
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137 { |
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138 GLES2_ATTRIBUTE_POSITION = 0, |
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139 GLES2_ATTRIBUTE_TEXCOORD = 1 |
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140 } GLES2_Attribute; |
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141 |
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142 typedef enum |
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143 { |
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144 GLES2_UNIFORM_PROJECTION, |
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145 GLES2_UNIFORM_TEXTURE, |
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146 GLES2_UNIFORM_MODULATION, |
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147 GLES2_UNIFORM_COLOR, |
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148 GLES2_UNIFORM_COLORTABLE |
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149 } GLES2_Uniform; |
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150 |
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151 typedef enum |
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152 { |
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153 GLES2_IMAGESOURCE_SOLID, |
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154 GLES2_IMAGESOURCE_TEXTURE |
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155 } GLES2_ImageSource; |
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156 |
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157 typedef struct GLES2_DriverContext |
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158 { |
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159 SDL_GLContext *context; |
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160 int shader_format_count; |
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161 GLenum *shader_formats; |
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162 GLES2_ShaderCache shader_cache; |
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163 GLES2_ProgramCache program_cache; |
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164 GLES2_ProgramCacheEntry *current_program; |
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165 SDL_bool updateSize; |
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166 } GLES2_DriverContext; |
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167 |
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168 #define GLES2_MAX_CACHED_PROGRAMS 8 |
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169 |
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170 /************************************************************************************************* |
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171 * Renderer state APIs * |
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172 *************************************************************************************************/ |
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173 |
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174 static void GLES2_WindowEvent(SDL_Renderer * renderer, |
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175 const SDL_WindowEvent *event); |
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176 static int GLES2_ActivateRenderer(SDL_Renderer *renderer); |
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177 static int GLES2_DisplayModeChanged(SDL_Renderer *renderer); |
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178 static void GLES2_DestroyRenderer(SDL_Renderer *renderer); |
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179 |
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180 static SDL_GLContext SDL_CurrentContext = NULL; |
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181 |
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182 static int |
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183 GLES2_ActivateRenderer(SDL_Renderer * renderer) |
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184 { |
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185 GLES2_DriverContext *rdata = (GLES2_DriverContext *)renderer->driverdata; |
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186 SDL_Window *window = renderer->window; |
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187 |
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188 if (SDL_CurrentContext != rdata->context) { |
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189 /* Null out the current program to ensure we set it again */ |
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190 rdata->current_program = NULL; |
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191 |
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192 if (SDL_GL_MakeCurrent(window, rdata->context) < 0) { |
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193 return -1; |
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194 } |
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195 SDL_CurrentContext = rdata->context; |
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196 } |
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197 if (rdata->updateSize) { |
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198 int w, h; |
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199 |
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200 SDL_GetWindowSize(window, &w, &h); |
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201 glViewport(0, 0, w, h); |
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202 rdata->updateSize = SDL_FALSE; |
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203 } |
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204 return 0; |
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205 } |
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206 |
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207 static void |
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208 GLES2_WindowEvent(SDL_Renderer * renderer, const SDL_WindowEvent *event) |
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209 { |
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210 GLES2_DriverContext *rdata = (GLES2_DriverContext *)renderer->driverdata; |
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211 |
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212 if (event->event == SDL_WINDOWEVENT_RESIZED) { |
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213 /* Rebind the context to the window area */ |
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214 SDL_CurrentContext = NULL; |
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215 rdata->updateSize = SDL_TRUE; |
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216 } |
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217 } |
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218 |
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219 static void |
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220 GLES2_DestroyRenderer(SDL_Renderer *renderer) |
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221 { |
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222 GLES2_DriverContext *rdata = (GLES2_DriverContext *)renderer->driverdata; |
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223 GLES2_ProgramCacheEntry *entry; |
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224 GLES2_ProgramCacheEntry *next; |
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225 |
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226 GLES2_ActivateRenderer(renderer); |
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227 |
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228 /* Deallocate everything */ |
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229 entry = rdata->program_cache.head; |
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230 while (entry) |
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231 { |
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232 glDeleteShader(entry->vertex_shader->id); |
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233 glDeleteShader(entry->fragment_shader->id); |
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234 SDL_free(entry->vertex_shader); |
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235 SDL_free(entry->fragment_shader); |
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236 glDeleteProgram(entry->id); |
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237 next = entry->next; |
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238 SDL_free(entry); |
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239 entry = next; |
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240 } |
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241 SDL_GL_DeleteContext(rdata->context); |
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242 SDL_free(rdata->shader_formats); |
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243 SDL_free(renderer->driverdata); |
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244 SDL_free(renderer); |
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245 } |
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246 |
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247 /************************************************************************************************* |
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248 * Texture APIs * |
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249 *************************************************************************************************/ |
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250 |
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251 #define GL_BGR_EXT 0x80E0 |
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252 #define GL_BGRA_EXT 0x80E1 |
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253 |
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254 static int GLES2_CreateTexture(SDL_Renderer *renderer, SDL_Texture *texture); |
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255 static void GLES2_DestroyTexture(SDL_Renderer *renderer, SDL_Texture *texture); |
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256 static int GLES2_LockTexture(SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect *rect, |
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257 void **pixels, int *pitch); |
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258 static void GLES2_UnlockTexture(SDL_Renderer *renderer, SDL_Texture *texture); |
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259 static int GLES2_UpdateTexture(SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect *rect, |
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260 const void *pixels, int pitch); |
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261 |
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262 static int |
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263 GLES2_CreateTexture(SDL_Renderer *renderer, SDL_Texture *texture) |
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264 { |
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265 GLES2_DriverContext *rdata = (GLES2_DriverContext *)renderer->driverdata; |
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266 GLES2_TextureData *tdata; |
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267 GLenum format; |
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268 GLenum type; |
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269 |
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270 GLES2_ActivateRenderer(renderer); |
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271 |
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272 /* Determine the corresponding GLES texture format params */ |
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273 switch (texture->format) |
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274 { |
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275 case SDL_PIXELFORMAT_BGR24: |
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276 format = GL_RGB; |
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277 type = GL_UNSIGNED_BYTE; |
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278 break; |
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279 case SDL_PIXELFORMAT_ABGR8888: |
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280 format = GL_RGBA; |
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281 type = GL_UNSIGNED_BYTE; |
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282 break; |
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283 case SDL_PIXELFORMAT_BGR565: |
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284 format = GL_RGB; |
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285 type = GL_UNSIGNED_SHORT_5_6_5; |
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286 break; |
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287 case SDL_PIXELFORMAT_ABGR1555: |
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288 format = GL_RGBA; |
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289 type = GL_UNSIGNED_SHORT_5_5_5_1; |
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290 break; |
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291 case SDL_PIXELFORMAT_ABGR4444: |
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292 format = GL_RGBA; |
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293 type = GL_UNSIGNED_SHORT_4_4_4_4; |
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294 break; |
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295 #if GLES2_ASSUME_BGRA || GLES2_ASSUME_BGRA8888 |
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296 case SDL_PIXELFORMAT_ARGB8888: |
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297 format = GL_BGRA_EXT; |
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298 type = GL_UNSIGNED_BYTE; |
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299 break; |
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300 #endif /* GLES2_ASSUME_BGRA || GLES2_ASSUME_BGRA8888 */ |
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301 #if GLES2_ASSUME_BGRA |
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302 case SDL_PIXELFORMAT_RGB24: |
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303 format = GL_BGR_EXT; |
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304 type = GL_UNSIGNED_BYTE; |
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305 break; |
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306 case SDL_PIXELFORMAT_RGB565: |
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307 format = GL_BGR_EXT; |
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308 type = GL_UNSIGNED_SHORT_5_6_5; |
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309 break; |
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310 case SDL_PIXELFORMAT_ARGB1555: |
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311 format = GL_BGRA_EXT; |
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312 type = GL_UNSIGNED_SHORT_5_5_5_1; |
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313 break; |
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314 case SDL_PIXELFORMAT_ARGB4444: |
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315 format = GL_BGRA_EXT; |
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316 type = GL_UNSIGNED_SHORT_4_4_4_4; |
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317 break; |
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318 #endif /* GLES2_ASSUME_BGRA */ |
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319 default: |
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320 SDL_SetError("Texture format not supported"); |
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321 return -1; |
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322 } |
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323 |
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324 /* Allocate a texture struct */ |
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325 tdata = (GLES2_TextureData *)SDL_calloc(1, sizeof(GLES2_TextureData)); |
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326 if (!tdata) |
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327 { |
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328 SDL_OutOfMemory(); |
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329 return -1; |
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330 } |
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331 tdata->texture = 0; |
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332 tdata->texture_type = GL_TEXTURE_2D; |
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333 tdata->pixel_format = format; |
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334 tdata->pixel_type = type; |
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335 |
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336 /* Allocate a blob for image data */ |
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337 if (texture->access == SDL_TEXTUREACCESS_STREAMING) |
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338 { |
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339 tdata->pitch = texture->w * SDL_BYTESPERPIXEL(texture->format); |
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340 tdata->pixel_data = SDL_malloc(tdata->pitch * texture->h); |
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341 if (!tdata->pixel_data) |
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342 { |
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343 SDL_OutOfMemory(); |
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344 SDL_free(tdata); |
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345 return -1; |
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346 } |
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347 } |
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348 |
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349 /* Allocate the texture */ |
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350 glGetError(); |
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351 glGenTextures(1, &tdata->texture); |
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352 glActiveTexture(GL_TEXTURE0); |
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353 glBindTexture(tdata->texture_type, tdata->texture); |
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changeset
|
354 glTexParameteri(tdata->texture_type, GL_TEXTURE_MIN_FILTER, GL_LINEAR); |
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355 glTexParameteri(tdata->texture_type, GL_TEXTURE_MAG_FILTER, GL_LINEAR); |
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356 glTexParameteri(tdata->texture_type, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); |
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357 glTexParameteri(tdata->texture_type, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); |
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358 glTexImage2D(tdata->texture_type, 0, format, texture->w, texture->h, 0, format, type, NULL); |
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359 if (glGetError() != GL_NO_ERROR) |
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changeset
|
360 { |
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361 SDL_SetError("Texture creation failed"); |
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362 glDeleteTextures(1, &tdata->texture); |
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363 SDL_free(tdata); |
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364 return -1; |
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365 } |
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366 texture->driverdata = tdata; |
523409574510
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367 return 0; |
523409574510
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|
368 } |
523409574510
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369 |
523409574510
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370 static void |
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371 GLES2_DestroyTexture(SDL_Renderer *renderer, SDL_Texture *texture) |
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372 { |
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373 GLES2_TextureData *tdata = (GLES2_TextureData *)texture->driverdata; |
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374 |
523409574510
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|
375 GLES2_ActivateRenderer(renderer); |
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376 |
523409574510
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377 /* Destroy the texture */ |
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378 if (tdata) |
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379 { |
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380 glDeleteTextures(1, &tdata->texture); |
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381 SDL_free(tdata->pixel_data); |
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382 SDL_free(tdata); |
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383 texture->driverdata = NULL; |
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384 } |
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385 } |
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386 |
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387 static int |
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388 GLES2_LockTexture(SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect *rect, |
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389 void **pixels, int *pitch) |
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390 { |
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391 GLES2_TextureData *tdata = (GLES2_TextureData *)texture->driverdata; |
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392 |
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changeset
|
393 /* Retrieve the buffer/pitch for the specified region */ |
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394 *pixels = (Uint8 *)tdata->pixel_data + |
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changeset
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395 (tdata->pitch * rect->y) + |
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396 (rect->x * SDL_BYTESPERPIXEL(texture->format)); |
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397 *pitch = tdata->pitch; |
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398 |
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399 return 0; |
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400 } |
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changeset
|
401 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
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|
402 static void |
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|
403 GLES2_UnlockTexture(SDL_Renderer *renderer, SDL_Texture *texture) |
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Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
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404 { |
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405 GLES2_TextureData *tdata = (GLES2_TextureData *)texture->driverdata; |
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406 |
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changeset
|
407 GLES2_ActivateRenderer(renderer); |
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408 |
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409 glPixelStorei(GL_UNPACK_ALIGNMENT, 1); |
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410 glActiveTexture(GL_TEXTURE0); |
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411 glBindTexture(tdata->texture_type, tdata->texture); |
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412 glTexSubImage2D(tdata->texture_type, 0, 0, 0, texture->w, texture->h, |
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413 tdata->pixel_format, tdata->pixel_type, tdata->pixel_data); |
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414 } |
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changeset
|
415 |
523409574510
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changeset
|
416 static int |
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changeset
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417 GLES2_UpdateTexture(SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect *rect, |
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418 const void *pixels, int pitch) |
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changeset
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419 { |
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420 GLES2_TextureData *tdata = (GLES2_TextureData *)texture->driverdata; |
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421 Uint8 *blob = NULL; |
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changeset
|
422 Uint8 *src; |
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changeset
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423 int srcPitch; |
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|
424 Uint8 *dest; |
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changeset
|
425 int y; |
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Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
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changeset
|
426 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
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changeset
|
427 GLES2_ActivateRenderer(renderer); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
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changeset
|
428 |
523409574510
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parents:
diff
changeset
|
429 /* Bail out if we're supposed to update an empty rectangle */ |
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parents:
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changeset
|
430 if (rect->w <= 0 || rect->h <= 0) |
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|
431 return 0; |
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Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
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changeset
|
432 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
433 /* Reformat the texture data into a tightly packed array */ |
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parents:
diff
changeset
|
434 srcPitch = rect->w * SDL_BYTESPERPIXEL(texture->format); |
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parents:
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changeset
|
435 src = (Uint8 *)pixels; |
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parents:
diff
changeset
|
436 if (pitch != srcPitch) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
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parents:
diff
changeset
|
437 { |
523409574510
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parents:
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changeset
|
438 blob = (Uint8 *)SDL_malloc(srcPitch * rect->h); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
439 if (!blob) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
440 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
441 SDL_OutOfMemory(); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
442 return -1; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
443 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
444 src = blob; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
445 for (y = 0; y < rect->h; ++y) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
446 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
447 SDL_memcpy(src, pixels, srcPitch); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
448 src += srcPitch; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
449 pixels = (Uint8 *)pixels + pitch; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
450 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
451 src = blob; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
452 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
453 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
454 /* Create a texture subimage with the supplied data */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
455 glGetError(); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
456 glActiveTexture(GL_TEXTURE0); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
457 glBindTexture(tdata->texture_type, tdata->texture); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
458 glPixelStorei(GL_UNPACK_ALIGNMENT, 1); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
459 glTexSubImage2D(tdata->texture_type, |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
460 0, |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
461 rect->x, |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
462 rect->y, |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
463 rect->w, |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
464 rect->h, |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
465 tdata->pixel_format, |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
466 tdata->pixel_type, |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
467 src); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
468 if (glGetError() != GL_NO_ERROR) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
469 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
470 SDL_SetError("Failed to update texture"); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
471 return -1; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
472 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
473 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
474 /* Update the (streaming) texture buffer, in one pass if possible */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
475 if (tdata->pixel_data) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
476 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
477 dest = (Uint8 *)tdata->pixel_data + |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
478 (tdata->pitch * rect->y) + |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
479 (SDL_BYTESPERPIXEL(texture->format) * rect->x); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
480 if (rect->w == texture->w) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
481 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
482 SDL_memcpy(dest, src, srcPitch * rect->h); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
483 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
484 else |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
485 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
486 for (y = 0; y < rect->h; ++y) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
487 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
488 SDL_memcpy(dest, src, srcPitch); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
489 src += srcPitch; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
490 dest += tdata->pitch; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
491 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
492 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
493 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
494 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
495 /* Clean up and return */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
496 SDL_free(blob); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
497 return 0; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
498 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
499 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
500 /************************************************************************************************* |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
501 * Shader management functions * |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
502 *************************************************************************************************/ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
503 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
504 static GLES2_ShaderCacheEntry *GLES2_CacheShader(SDL_Renderer *renderer, GLES2_ShaderType type, |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
505 SDL_BlendMode blendMode); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
506 static void GLES2_EvictShader(SDL_Renderer *renderer, GLES2_ShaderCacheEntry *entry); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
507 static GLES2_ProgramCacheEntry *GLES2_CacheProgram(SDL_Renderer *renderer, |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
508 GLES2_ShaderCacheEntry *vertex, |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
509 GLES2_ShaderCacheEntry *fragment, |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
510 SDL_BlendMode blendMode); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
511 static int GLES2_SelectProgram(SDL_Renderer *renderer, GLES2_ImageSource source, |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
512 SDL_BlendMode blendMode); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
513 static int GLES2_SetOrthographicProjection(SDL_Renderer *renderer); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
514 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
515 static GLES2_ProgramCacheEntry * |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
516 GLES2_CacheProgram(SDL_Renderer *renderer, GLES2_ShaderCacheEntry *vertex, |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
517 GLES2_ShaderCacheEntry *fragment, SDL_BlendMode blendMode) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
518 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
519 GLES2_DriverContext *rdata = (GLES2_DriverContext *)renderer->driverdata; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
520 GLES2_ProgramCacheEntry *entry; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
521 GLES2_ShaderCacheEntry *shaderEntry; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
522 GLint linkSuccessful; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
523 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
524 /* Check if we've already cached this program */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
525 entry = rdata->program_cache.head; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
526 while (entry) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
527 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
528 if (entry->vertex_shader == vertex && entry->fragment_shader == fragment) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
529 break; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
530 entry = entry->next; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
531 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
532 if (entry) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
533 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
534 if (rdata->program_cache.count > 1) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
535 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
536 if (entry->next) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
537 entry->next->prev = entry->prev; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
538 if (entry->prev) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
539 entry->prev->next = entry->next; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
540 entry->prev = NULL; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
541 entry->next = rdata->program_cache.head; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
542 rdata->program_cache.head->prev = entry; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
543 rdata->program_cache.head = entry; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
544 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
545 return entry; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
546 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
547 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
548 /* Create a program cache entry */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
549 entry = (GLES2_ProgramCacheEntry *)SDL_calloc(1, sizeof(GLES2_ProgramCacheEntry)); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
550 if (!entry) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
551 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
552 SDL_OutOfMemory(); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
553 return NULL; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
554 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
555 entry->vertex_shader = vertex; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
556 entry->fragment_shader = fragment; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
557 entry->blend_mode = blendMode; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
558 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
559 /* Create the program and link it */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
560 glGetError(); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
561 entry->id = glCreateProgram(); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
562 glAttachShader(entry->id, vertex->id); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
563 glAttachShader(entry->id, fragment->id); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
564 glBindAttribLocation(entry->id, GLES2_ATTRIBUTE_POSITION, "a_position"); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
565 glBindAttribLocation(entry->id, GLES2_ATTRIBUTE_TEXCOORD, "a_texCoord"); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
566 glLinkProgram(entry->id); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
567 glGetProgramiv(entry->id, GL_LINK_STATUS, &linkSuccessful); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
568 if (glGetError() != GL_NO_ERROR || !linkSuccessful) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
569 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
570 SDL_SetError("Failed to link shader program"); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
571 glDeleteProgram(entry->id); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
572 SDL_free(entry); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
573 return NULL; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
574 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
575 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
576 /* Predetermine locations of uniform variables */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
577 entry->uniform_locations[GLES2_UNIFORM_PROJECTION] = |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
578 glGetUniformLocation(entry->id, "u_projection"); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
579 entry->uniform_locations[GLES2_UNIFORM_TEXTURE] = |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
580 glGetUniformLocation(entry->id, "u_texture"); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
581 entry->uniform_locations[GLES2_UNIFORM_MODULATION] = |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
582 glGetUniformLocation(entry->id, "u_modulation"); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
583 entry->uniform_locations[GLES2_UNIFORM_COLOR] = |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
584 glGetUniformLocation(entry->id, "u_color"); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
585 entry->uniform_locations[GLES2_UNIFORM_COLORTABLE] = |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
586 glGetUniformLocation(entry->id, "u_colorTable"); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
587 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
588 /* Cache the linked program */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
589 if (rdata->program_cache.head) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
590 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
591 entry->next = rdata->program_cache.head; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
592 rdata->program_cache.head->prev = entry; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
593 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
594 else |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
595 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
596 rdata->program_cache.tail = entry; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
597 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
598 rdata->program_cache.head = entry; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
599 ++rdata->program_cache.count; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
600 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
601 /* Increment the refcount of the shaders we're using */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
602 ++vertex->references; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
603 ++fragment->references; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
604 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
605 /* Evict the last entry from the cache if we exceed the limit */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
606 if (rdata->program_cache.count > GLES2_MAX_CACHED_PROGRAMS) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
607 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
608 shaderEntry = rdata->program_cache.tail->vertex_shader; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
609 if (--shaderEntry->references <= 0) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
610 GLES2_EvictShader(renderer, shaderEntry); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
611 shaderEntry = rdata->program_cache.tail->fragment_shader; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
612 if (--shaderEntry->references <= 0) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
613 GLES2_EvictShader(renderer, shaderEntry); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
614 glDeleteProgram(rdata->program_cache.tail->id); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
615 rdata->program_cache.tail = rdata->program_cache.tail->prev; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
616 SDL_free(rdata->program_cache.tail->next); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
617 rdata->program_cache.tail->next = NULL; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
618 --rdata->program_cache.count; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
619 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
620 return entry; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
621 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
622 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
623 static GLES2_ShaderCacheEntry * |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
624 GLES2_CacheShader(SDL_Renderer *renderer, GLES2_ShaderType type, SDL_BlendMode blendMode) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
625 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
626 GLES2_DriverContext *rdata = (GLES2_DriverContext *)renderer->driverdata; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
627 const GLES2_Shader *shader; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
628 const GLES2_ShaderInstance *instance = NULL; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
629 GLES2_ShaderCacheEntry *entry = NULL; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
630 GLint compileSuccessful = GL_FALSE; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
631 int i, j; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
632 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
633 /* Find the corresponding shader */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
634 shader = GLES2_GetShader(type, blendMode); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
635 if (!shader) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
636 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
637 SDL_SetError("No shader matching the requested characteristics was found"); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
638 return NULL; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
639 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
640 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
641 /* Find a matching shader instance that's supported on this hardware */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
642 for (i = 0; i < shader->instance_count; ++i) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
643 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
644 for (j = 0; j < rdata->shader_format_count; ++j) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
645 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
646 if (!shader->instances) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
647 continue; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
648 if (shader->instances[i]->format != rdata->shader_formats[j]) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
649 continue; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
650 instance = shader->instances[i]; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
651 break; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
652 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
653 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
654 if (!instance) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
655 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
656 SDL_SetError("The specified shader cannot be loaded on the current platform"); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
657 return NULL; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
658 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
659 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
660 /* Check if we've already cached this shader */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
661 entry = rdata->shader_cache.head; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
662 while (entry) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
663 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
664 if (entry->instance == instance) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
665 break; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
666 entry = entry->next; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
667 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
668 if (entry) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
669 return entry; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
670 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
671 /* Create a shader cache entry */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
672 entry = (GLES2_ShaderCacheEntry *)SDL_calloc(1, sizeof(GLES2_ShaderCacheEntry)); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
673 if (!entry) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
674 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
675 SDL_OutOfMemory(); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
676 return NULL; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
677 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
678 entry->type = type; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
679 entry->instance = instance; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
680 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
681 /* Compile or load the selected shader instance */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
682 glGetError(); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
683 entry->id = glCreateShader(instance->type); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
684 if (instance->format == (GLenum)-1) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
685 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
686 glShaderSource(entry->id, 1, (const char **)&instance->data, &instance->length); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
687 glCompileShader(entry->id); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
688 glGetShaderiv(entry->id, GL_COMPILE_STATUS, &compileSuccessful); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
689 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
690 else |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
691 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
692 glShaderBinary(1, &entry->id, instance->format, instance->data, instance->length); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
693 compileSuccessful = GL_TRUE; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
694 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
695 if (glGetError() != GL_NO_ERROR || !compileSuccessful) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
696 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
697 SDL_SetError("Failed to load the specified shader"); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
698 glDeleteShader(entry->id); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
699 SDL_free(entry); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
700 return NULL; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
701 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
702 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
703 /* Link the shader entry in at the front of the cache */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
704 if (rdata->shader_cache.head) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
705 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
706 entry->next = rdata->shader_cache.head; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
707 rdata->shader_cache.head->prev = entry; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
708 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
709 rdata->shader_cache.head = entry; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
710 ++rdata->shader_cache.count; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
711 return entry; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
712 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
713 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
714 static void |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
715 GLES2_EvictShader(SDL_Renderer *renderer, GLES2_ShaderCacheEntry *entry) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
716 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
717 GLES2_DriverContext *rdata = (GLES2_DriverContext *)renderer->driverdata; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
718 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
719 /* Unlink the shader from the cache */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
720 if (entry->next) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
721 entry->next->prev = entry->prev; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
722 if (entry->prev) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
723 entry->prev->next = entry->next; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
724 if (rdata->shader_cache.head == entry) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
725 rdata->shader_cache.head = entry->next; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
726 --rdata->shader_cache.count; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
727 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
728 /* Deallocate the shader */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
729 glDeleteShader(entry->id); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
730 SDL_free(entry); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
731 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
732 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
733 static int |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
734 GLES2_SelectProgram(SDL_Renderer *renderer, GLES2_ImageSource source, SDL_BlendMode blendMode) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
735 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
736 GLES2_DriverContext *rdata = (GLES2_DriverContext *)renderer->driverdata; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
737 GLES2_ShaderCacheEntry *vertex = NULL; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
738 GLES2_ShaderCacheEntry *fragment = NULL; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
739 GLES2_ShaderType vtype, ftype; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
740 GLES2_ProgramCacheEntry *program; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
741 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
742 /* Select an appropriate shader pair for the specified modes */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
743 vtype = GLES2_SHADER_VERTEX_DEFAULT; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
744 switch (source) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
745 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
746 case GLES2_IMAGESOURCE_SOLID: |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
747 ftype = GLES2_SHADER_FRAGMENT_SOLID_SRC; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
748 break; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
749 case GLES2_IMAGESOURCE_TEXTURE: |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
750 ftype = GLES2_SHADER_FRAGMENT_TEXTURE_SRC; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
751 break; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
752 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
753 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
754 /* Load the requested shaders */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
755 vertex = GLES2_CacheShader(renderer, vtype, blendMode); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
756 if (!vertex) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
757 goto fault; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
758 fragment = GLES2_CacheShader(renderer, ftype, blendMode); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
759 if (!fragment) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
760 goto fault; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
761 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
762 /* Check if we need to change programs at all */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
763 if (rdata->current_program && |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
764 rdata->current_program->vertex_shader == vertex && |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
765 rdata->current_program->fragment_shader == fragment) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
766 return 0; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
767 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
768 /* Generate a matching program */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
769 program = GLES2_CacheProgram(renderer, vertex, fragment, blendMode); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
770 if (!program) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
771 goto fault; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
772 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
773 /* Select that program in OpenGL */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
774 glGetError(); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
775 glUseProgram(program->id); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
776 if (glGetError() != GL_NO_ERROR) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
777 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
778 SDL_SetError("Failed to select program"); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
779 goto fault; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
780 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
781 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
782 /* Set the current program */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
783 rdata->current_program = program; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
784 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
785 /* Activate an orthographic projection */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
786 if (GLES2_SetOrthographicProjection(renderer) < 0) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
787 goto fault; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
788 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
789 /* Clean up and return */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
790 return 0; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
791 fault: |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
792 if (vertex && vertex->references <= 0) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
793 GLES2_EvictShader(renderer, vertex); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
794 if (fragment && fragment->references <= 0) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
795 GLES2_EvictShader(renderer, fragment); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
796 rdata->current_program = NULL; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
797 return -1; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
798 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
799 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
800 static int |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
801 GLES2_SetOrthographicProjection(SDL_Renderer *renderer) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
802 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
803 GLES2_DriverContext *rdata = (GLES2_DriverContext *)renderer->driverdata; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
804 SDL_Window *window = renderer->window; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
805 int w, h; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
806 GLfloat projection[4][4]; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
807 GLuint locProjection; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
808 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
809 /* Get the window width and height */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
810 SDL_GetWindowSize(window, &w, &h); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
811 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
812 /* Prepare an orthographic projection */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
813 projection[0][0] = 2.0f / w; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
814 projection[0][1] = 0.0f; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
815 projection[0][2] = 0.0f; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
816 projection[0][3] = 0.0f; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
817 projection[1][0] = 0.0f; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
818 projection[1][1] = -2.0f / h; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
819 projection[1][2] = 0.0f; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
820 projection[1][3] = 0.0f; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
821 projection[2][0] = 0.0f; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
822 projection[2][1] = 0.0f; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
823 projection[2][2] = 1.0f; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
824 projection[2][3] = 0.0f; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
825 projection[3][0] = -1.0f; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
826 projection[3][1] = 1.0f; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
827 projection[3][2] = 0.0f; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
828 projection[3][3] = 1.0f; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
829 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
830 /* Set the projection matrix */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
831 locProjection = rdata->current_program->uniform_locations[GLES2_UNIFORM_PROJECTION]; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
832 glGetError(); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
833 glUniformMatrix4fv(locProjection, 1, GL_FALSE, (GLfloat *)projection); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
834 if (glGetError() != GL_NO_ERROR) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
835 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
836 SDL_SetError("Failed to set orthographic projection"); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
837 return -1; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
838 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
839 return 0; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
840 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
841 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
842 /************************************************************************************************* |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
843 * Rendering functions * |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
844 *************************************************************************************************/ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
845 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
846 static int GLES2_RenderClear(SDL_Renderer *renderer); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
847 static int GLES2_RenderDrawPoints(SDL_Renderer *renderer, const SDL_Point *points, int count); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
848 static int GLES2_RenderDrawLines(SDL_Renderer *renderer, const SDL_Point *points, int count); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
849 static int GLES2_RenderDrawRects(SDL_Renderer *renderer, const SDL_Rect **rects, int count); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
850 static int GLES2_RenderFillRects(SDL_Renderer *renderer, const SDL_Rect **rects, int count); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
851 static int GLES2_RenderCopy(SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect *srcrect, |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
852 const SDL_Rect *dstrect); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
853 static void GLES2_RenderPresent(SDL_Renderer *renderer); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
854 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
855 static int |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
856 GLES2_RenderClear(SDL_Renderer *renderer) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
857 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
858 float r = (float)renderer->r / 255.0f; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
859 float g = (float)renderer->g / 255.0f; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
860 float b = (float)renderer->b / 255.0f; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
861 float a = (float)renderer->a / 255.0f; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
862 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
863 GLES2_ActivateRenderer(renderer); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
864 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
865 /* Clear the backbuffer with the selected color */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
866 glClearColor(r, g, b, a); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
867 glClear(GL_COLOR_BUFFER_BIT); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
868 return 0; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
869 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
870 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
871 static void |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
872 GLES2_SetBlendMode(int blendMode) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
873 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
874 switch (blendMode) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
875 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
876 case SDL_BLENDMODE_NONE: |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
877 default: |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
878 glDisable(GL_BLEND); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
879 break; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
880 case SDL_BLENDMODE_BLEND: |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
881 glEnable(GL_BLEND); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
882 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
883 break; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
884 case SDL_BLENDMODE_ADD: |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
885 glEnable(GL_BLEND); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
886 glBlendFunc(GL_SRC_ALPHA, GL_ONE); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
887 break; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
888 case SDL_BLENDMODE_MOD: |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
889 glEnable(GL_BLEND); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
890 glBlendFunc(GL_ZERO, GL_SRC_COLOR); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
891 break; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
892 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
893 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
894 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
895 static int |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
896 GLES2_RenderDrawPoints(SDL_Renderer *renderer, const SDL_Point *points, int count) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
897 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
898 GLES2_DriverContext *rdata = (GLES2_DriverContext *)renderer->driverdata; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
899 GLfloat *vertices; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
900 SDL_BlendMode blendMode; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
901 int alpha; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
902 GLuint locColor; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
903 int idx; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
904 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
905 GLES2_ActivateRenderer(renderer); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
906 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
907 blendMode = renderer->blendMode; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
908 alpha = renderer->a; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
909 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
910 /* Activate an appropriate shader and set the projection matrix */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
911 if (GLES2_SelectProgram(renderer, GLES2_IMAGESOURCE_SOLID, blendMode) < 0) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
912 return -1; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
913 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
914 /* Select the color to draw with */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
915 locColor = rdata->current_program->uniform_locations[GLES2_UNIFORM_COLOR]; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
916 glGetError(); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
917 glUniform4f(locColor, |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
918 renderer->r / 255.0f, |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
919 renderer->g / 255.0f, |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
920 renderer->b / 255.0f, |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
921 alpha / 255.0f); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
922 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
923 /* Configure the correct blend mode */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
924 GLES2_SetBlendMode(blendMode); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
925 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
926 /* Emit the specified vertices as points */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
927 vertices = SDL_stack_alloc(GLfloat, count * 2); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
928 for (idx = 0; idx < count; ++idx) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
929 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
930 GLfloat x = (GLfloat)points[idx].x + 0.5f; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
931 GLfloat y = (GLfloat)points[idx].y + 0.5f; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
932 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
933 vertices[idx * 2] = x; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
934 vertices[(idx * 2) + 1] = y; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
935 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
936 glEnableVertexAttribArray(GLES2_ATTRIBUTE_POSITION); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
937 glVertexAttribPointer(GLES2_ATTRIBUTE_POSITION, 2, GL_FLOAT, GL_FALSE, 0, vertices); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
938 glDrawArrays(GL_POINTS, 0, count); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
939 glDisableVertexAttribArray(GLES2_ATTRIBUTE_POSITION); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
940 SDL_stack_free(vertices); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
941 if (glGetError() != GL_NO_ERROR) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
942 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
943 SDL_SetError("Failed to render lines"); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
944 return -1; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
945 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
946 return 0; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
947 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
948 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
949 static int |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
950 GLES2_RenderDrawLines(SDL_Renderer *renderer, const SDL_Point *points, int count) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
951 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
952 GLES2_DriverContext *rdata = (GLES2_DriverContext *)renderer->driverdata; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
953 GLfloat *vertices; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
954 SDL_BlendMode blendMode; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
955 int alpha; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
956 GLuint locColor; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
957 int idx; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
958 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
959 GLES2_ActivateRenderer(renderer); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
960 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
961 blendMode = renderer->blendMode; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
962 alpha = renderer->a; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
963 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
964 /* Activate an appropriate shader and set the projection matrix */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
965 if (GLES2_SelectProgram(renderer, GLES2_IMAGESOURCE_SOLID, blendMode) < 0) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
966 return -1; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
967 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
968 /* Select the color to draw with */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
969 locColor = rdata->current_program->uniform_locations[GLES2_UNIFORM_COLOR]; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
970 glGetError(); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
971 glUniform4f(locColor, |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
972 renderer->r / 255.0f, |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
973 renderer->g / 255.0f, |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
974 renderer->b / 255.0f, |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
975 alpha / 255.0f); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
976 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
977 /* Configure the correct blend mode */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
978 GLES2_SetBlendMode(blendMode); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
979 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
980 /* Emit a line strip including the specified vertices */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
981 vertices = SDL_stack_alloc(GLfloat, count * 2); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
982 for (idx = 0; idx < count; ++idx) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
983 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
984 GLfloat x = (GLfloat)points[idx].x + 0.5f; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
985 GLfloat y = (GLfloat)points[idx].y + 0.5f; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
986 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
987 vertices[idx * 2] = x; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
988 vertices[(idx * 2) + 1] = y; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
989 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
990 glEnableVertexAttribArray(GLES2_ATTRIBUTE_POSITION); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
991 glVertexAttribPointer(GLES2_ATTRIBUTE_POSITION, 2, GL_FLOAT, GL_FALSE, 0, vertices); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
992 glDrawArrays(GL_LINE_STRIP, 0, count); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
993 glDisableVertexAttribArray(GLES2_ATTRIBUTE_POSITION); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
994 SDL_stack_free(vertices); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
995 if (glGetError() != GL_NO_ERROR) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
996 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
997 SDL_SetError("Failed to render lines"); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
998 return -1; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
999 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1000 return 0; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1001 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1002 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1003 static int |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1004 GLES2_RenderFillRects(SDL_Renderer *renderer, const SDL_Rect **rects, int count) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1005 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1006 GLES2_DriverContext *rdata = (GLES2_DriverContext *)renderer->driverdata; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1007 GLfloat vertices[8]; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1008 SDL_BlendMode blendMode; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1009 int alpha; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1010 GLuint locColor; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1011 int idx; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1012 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1013 GLES2_ActivateRenderer(renderer); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1014 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1015 blendMode = renderer->blendMode; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1016 alpha = renderer->a; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1017 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1018 /* Activate an appropriate shader and set the projection matrix */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1019 if (GLES2_SelectProgram(renderer, GLES2_IMAGESOURCE_SOLID, blendMode) < 0) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1020 return -1; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1021 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1022 /* Select the color to draw with */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1023 locColor = rdata->current_program->uniform_locations[GLES2_UNIFORM_COLOR]; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1024 glGetError(); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1025 glUniform4f(locColor, |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1026 renderer->r / 255.0f, |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1027 renderer->g / 255.0f, |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1028 renderer->b / 255.0f, |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1029 alpha / 255.0f); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1030 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1031 /* Configure the correct blend mode */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1032 GLES2_SetBlendMode(blendMode); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1033 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1034 /* Emit a line loop for each rectangle */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1035 glEnableVertexAttribArray(GLES2_ATTRIBUTE_POSITION); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1036 for (idx = 0; idx < count; ++idx) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1037 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1038 GLfloat xMin = (GLfloat)rects[idx]->x; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1039 GLfloat xMax = (GLfloat)(rects[idx]->x + rects[idx]->w); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1040 GLfloat yMin = (GLfloat)rects[idx]->y; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1041 GLfloat yMax = (GLfloat)(rects[idx]->y + rects[idx]->h); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1042 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1043 vertices[0] = xMin; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1044 vertices[1] = yMin; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1045 vertices[2] = xMax; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1046 vertices[3] = yMin; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1047 vertices[4] = xMin; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1048 vertices[5] = yMax; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1049 vertices[6] = xMax; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1050 vertices[7] = yMax; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1051 glVertexAttribPointer(GLES2_ATTRIBUTE_POSITION, 2, GL_FLOAT, GL_FALSE, 0, vertices); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1052 glDrawArrays(GL_TRIANGLE_STRIP, 0, 4); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1053 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1054 glDisableVertexAttribArray(GLES2_ATTRIBUTE_POSITION); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1055 if (glGetError() != GL_NO_ERROR) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1056 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1057 SDL_SetError("Failed to render lines"); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1058 return -1; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1059 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1060 return 0; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1061 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1062 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1063 static int |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1064 GLES2_RenderCopy(SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect *srcrect, |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1065 const SDL_Rect *dstrect) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1066 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1067 GLES2_DriverContext *rdata = (GLES2_DriverContext *)renderer->driverdata; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1068 GLES2_TextureData *tdata = (GLES2_TextureData *)texture->driverdata; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1069 GLES2_ImageSource sourceType; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1070 SDL_BlendMode blendMode; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1071 int alpha; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1072 GLfloat vertices[8]; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1073 GLfloat texCoords[8]; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1074 GLuint locTexture; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1075 GLuint locModulation; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1076 GLuint locColorTable; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1077 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1078 GLES2_ActivateRenderer(renderer); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1079 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1080 /* Activate an appropriate shader and set the projection matrix */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1081 blendMode = texture->blendMode; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1082 alpha = texture->a; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1083 sourceType = GLES2_IMAGESOURCE_TEXTURE; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1084 if (GLES2_SelectProgram(renderer, sourceType, blendMode) < 0) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1085 return -1; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1086 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1087 /* Select the target texture */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1088 locTexture = rdata->current_program->uniform_locations[GLES2_UNIFORM_TEXTURE]; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1089 glGetError(); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1090 glActiveTexture(GL_TEXTURE0); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1091 glBindTexture(tdata->texture_type, tdata->texture); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1092 glUniform1i(locTexture, 0); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1093 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1094 /* Configure texture blending */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1095 GLES2_SetBlendMode(blendMode); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1096 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1097 /* Configure color modulation */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1098 locModulation = rdata->current_program->uniform_locations[GLES2_UNIFORM_MODULATION]; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1099 glUniform4f(locModulation, |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1100 texture->r / 255.0f, |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1101 texture->g / 255.0f, |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1102 texture->b / 255.0f, |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1103 alpha / 255.0f); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1104 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1105 /* Emit the textured quad */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1106 glEnableVertexAttribArray(GLES2_ATTRIBUTE_TEXCOORD); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1107 glEnableVertexAttribArray(GLES2_ATTRIBUTE_POSITION); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1108 vertices[0] = (GLfloat)dstrect->x; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1109 vertices[1] = (GLfloat)dstrect->y; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1110 vertices[2] = (GLfloat)(dstrect->x + dstrect->w); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1111 vertices[3] = (GLfloat)dstrect->y; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1112 vertices[4] = (GLfloat)dstrect->x; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1113 vertices[5] = (GLfloat)(dstrect->y + dstrect->h); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1114 vertices[6] = (GLfloat)(dstrect->x + dstrect->w); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1115 vertices[7] = (GLfloat)(dstrect->y + dstrect->h); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1116 glVertexAttribPointer(GLES2_ATTRIBUTE_POSITION, 2, GL_FLOAT, GL_FALSE, 0, vertices); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1117 texCoords[0] = srcrect->x / (GLfloat)texture->w; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1118 texCoords[1] = srcrect->y / (GLfloat)texture->h; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1119 texCoords[2] = (srcrect->x + srcrect->w) / (GLfloat)texture->w; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1120 texCoords[3] = srcrect->y / (GLfloat)texture->h; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1121 texCoords[4] = srcrect->x / (GLfloat)texture->w; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1122 texCoords[5] = (srcrect->y + srcrect->h) / (GLfloat)texture->h; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1123 texCoords[6] = (srcrect->x + srcrect->w) / (GLfloat)texture->w; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1124 texCoords[7] = (srcrect->y + srcrect->h) / (GLfloat)texture->h; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1125 glVertexAttribPointer(GLES2_ATTRIBUTE_TEXCOORD, 2, GL_FLOAT, GL_FALSE, 0, texCoords); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1126 glDrawArrays(GL_TRIANGLE_STRIP, 0, 4); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1127 glDisableVertexAttribArray(GLES2_ATTRIBUTE_POSITION); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1128 glDisableVertexAttribArray(GLES2_ATTRIBUTE_TEXCOORD); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1129 if (glGetError() != GL_NO_ERROR) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1130 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1131 SDL_SetError("Failed to render texture"); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1132 return -1; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1133 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1134 return 0; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1135 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1136 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1137 static void |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1138 GLES2_RenderPresent(SDL_Renderer *renderer) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1139 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1140 GLES2_ActivateRenderer(renderer); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1141 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1142 /* Tell the video driver to swap buffers */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1143 SDL_GL_SwapWindow(renderer->window); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1144 } |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1145 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1146 /************************************************************************************************* |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1147 * Renderer instantiation * |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1148 *************************************************************************************************/ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1149 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1150 #define GL_NVIDIA_PLATFORM_BINARY_NV 0x890B |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1151 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1152 static SDL_Renderer * |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1153 GLES2_CreateRenderer(SDL_Window *window, Uint32 flags) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1154 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1155 SDL_Renderer *renderer; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1156 GLES2_DriverContext *rdata; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1157 GLint nFormats; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1158 #ifndef ZUNE_HD |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1159 GLboolean hasCompiler; |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1160 #endif |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1161 |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1162 /* Create the renderer struct */ |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1163 renderer = (SDL_Renderer *)SDL_calloc(1, sizeof(SDL_Renderer)); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1164 rdata = (GLES2_DriverContext *)SDL_calloc(1, sizeof(GLES2_DriverContext)); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1165 if (!renderer) |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1166 { |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1167 SDL_OutOfMemory(); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1168 SDL_free(renderer); |
523409574510
Added an OpenGL ES 2.0 renderer, contributed by itsnotabigtruck
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1169 SDL_free(rdata); |
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1170 return NULL; |
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1171 } |
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1172 renderer->info = GLES2_RenderDriver.info; |
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1173 renderer->window = window; |
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1174 renderer->driverdata = rdata; |
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1175 |
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1176 /* Create the GL context */ |
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1177 rdata->context = SDL_GL_CreateContext(window); |
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1178 if (!rdata->context) |
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1179 { |
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1180 SDL_free(renderer); |
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1181 SDL_free(rdata); |
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1182 return NULL; |
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1183 } |
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1184 |
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1185 /* Determine supported shader formats */ |
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1186 /* HACK: glGetInteger is broken on the Zune HD's compositor, so we just hardcode this */ |
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1187 glGetError(); |
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|
1188 #ifdef ZUNE_HD |
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1189 nFormats = 1; |
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1190 #else /* !ZUNE_HD */ |
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1191 glGetIntegerv(GL_NUM_SHADER_BINARY_FORMATS, &nFormats); |
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1192 glGetBooleanv(GL_SHADER_COMPILER, &hasCompiler); |
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1193 if (hasCompiler) |
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1194 ++nFormats; |
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1195 #endif /* ZUNE_HD */ |
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1196 rdata->shader_formats = (GLenum *)SDL_calloc(nFormats, sizeof(GLenum)); |
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1197 if (!rdata->shader_formats) |
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1198 { |
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1199 SDL_OutOfMemory(); |
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1200 SDL_free(renderer); |
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|
1201 SDL_free(rdata); |
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1202 return NULL; |
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1203 } |
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1204 rdata->shader_format_count = nFormats; |
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1205 #ifdef ZUNE_HD |
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|
1206 rdata->shader_formats[0] = GL_NVIDIA_PLATFORM_BINARY_NV; |
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parents:
diff
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|
1207 #else /* !ZUNE_HD */ |
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|
1208 glGetIntegerv(GL_SHADER_BINARY_FORMATS, (GLint *)rdata->shader_formats); |
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|
1209 if (glGetError() != GL_NO_ERROR) |
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|
1210 { |
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|
1211 SDL_SetError("Failed to query supported shader formats"); |
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|
1212 SDL_free(renderer); |
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|
1213 SDL_free(rdata->shader_formats); |
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|
1214 SDL_free(rdata); |
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|
1215 return NULL; |
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|
1216 } |
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|
1217 if (hasCompiler) |
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|
1218 rdata->shader_formats[nFormats - 1] = (GLenum)-1; |
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|
1219 #endif /* ZUNE_HD */ |
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|
1220 |
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|
1221 /* Populate the function pointers for the module */ |
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|
1222 renderer->WindowEvent = &GLES2_WindowEvent; |
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1223 renderer->CreateTexture = &GLES2_CreateTexture; |
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|
1224 renderer->UpdateTexture = &GLES2_UpdateTexture; |
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|
1225 renderer->LockTexture = &GLES2_LockTexture; |
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|
1226 renderer->UnlockTexture = &GLES2_UnlockTexture; |
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|
1227 renderer->RenderClear = &GLES2_RenderClear; |
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|
1228 renderer->RenderDrawPoints = &GLES2_RenderDrawPoints; |
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|
1229 renderer->RenderDrawLines = &GLES2_RenderDrawLines; |
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|
1230 renderer->RenderFillRects = &GLES2_RenderFillRects; |
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|
1231 renderer->RenderCopy = &GLES2_RenderCopy; |
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|
1232 renderer->RenderPresent = &GLES2_RenderPresent; |
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|
1233 renderer->DestroyTexture = &GLES2_DestroyTexture; |
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|
1234 renderer->DestroyRenderer = &GLES2_DestroyRenderer; |
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changeset
|
1235 return renderer; |
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changeset
|
1236 } |
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|
1237 |
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|
1238 #endif /* SDL_VIDEO_RENDER_OGL_ES2 */ |
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|
1239 |
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|
1240 /* vi: set ts=4 sw=4 expandtab: */ |