ProgramCache.cpp revision 4121063313ac0d6f69f6253cac821d0c1c122086
154481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu/* 254481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu * Copyright (C) 2010 The Android Open Source Project 354481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu * 454481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu * Licensed under the Apache License, Version 2.0 (the "License"); 554481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu * you may not use this file except in compliance with the License. 654481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu * You may obtain a copy of the License at 754481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu * 854481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu * http://www.apache.org/licenses/LICENSE-2.0 954481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu * 1054481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu * Unless required by applicable law or agreed to in writing, software 1154481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu * distributed under the License is distributed on an "AS IS" BASIS, 1254481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1354481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu * See the License for the specific language governing permissions and 1454481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu * limitations under the License. 1554481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu */ 1654481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu 178ca4ac971a9b862fbd69c57af3a3c0029a6b9f4dPeter Qiu#define LOG_TAG "OpenGLRenderer" 186a3903fed590e369b576bddbe1ae2d788768ddfeJan Nordqvist 1954481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu#include <utils/String8.h> 2054481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu 2171a988c8e9859244b83cd55bb6b6ee913fcaf95cJan Nordqvist#include "Caches.h" 2254481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu#include "ProgramCache.h" 236a3903fed590e369b576bddbe1ae2d788768ddfeJan Nordqvist 2471a988c8e9859244b83cd55bb6b6ee913fcaf95cJan Nordqvistnamespace android { 2571a988c8e9859244b83cd55bb6b6ee913fcaf95cJan Nordqvistnamespace uirenderer { 2671a988c8e9859244b83cd55bb6b6ee913fcaf95cJan Nordqvist 2771a988c8e9859244b83cd55bb6b6ee913fcaf95cJan Nordqvist/////////////////////////////////////////////////////////////////////////////// 286a3903fed590e369b576bddbe1ae2d788768ddfeJan Nordqvist// Defines 296a3903fed590e369b576bddbe1ae2d788768ddfeJan Nordqvist/////////////////////////////////////////////////////////////////////////////// 3054481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu 3154481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu#define MODULATE_OP_NO_MODULATE 0 3254481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu#define MODULATE_OP_MODULATE 1 3354481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu#define MODULATE_OP_MODULATE_A8 2 3454481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu 3554481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu/////////////////////////////////////////////////////////////////////////////// 3654481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu// Vertex shaders snippets 3754481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu/////////////////////////////////////////////////////////////////////////////// 3854481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu 396a3903fed590e369b576bddbe1ae2d788768ddfeJan Nordqvistconst char* gVS_Header_Attributes = 406a3903fed590e369b576bddbe1ae2d788768ddfeJan Nordqvist "attribute vec4 position;\n"; 4154481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiuconst char* gVS_Header_Attributes_TexCoords = 4254481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu "attribute vec2 texCoords;\n"; 4354481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiuconst char* gVS_Header_Attributes_AAParameters = 4454481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu "attribute float vtxWidth;\n" 4554481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu "attribute float vtxLength;\n"; 466a3903fed590e369b576bddbe1ae2d788768ddfeJan Nordqvistconst char* gVS_Header_Uniforms_TextureTransform = 4754481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu "uniform mat4 mainTextureTransform;\n"; 4854481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiuconst char* gVS_Header_Uniforms = 4954481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu "uniform mat4 transform;\n"; 5054481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiuconst char* gVS_Header_Uniforms_IsPoint = 5154481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu "uniform mediump float pointSize;\n"; 5254481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiuconst char* gVS_Header_Uniforms_HasGradient[3] = { 5354481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu // Linear 5454481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu "uniform mat4 screenSpace;\n", 5554481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu // Circular 5654481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu "uniform mat4 screenSpace;\n", 5754481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu // Sweep 5854481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu "uniform mat4 screenSpace;\n" 5954481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu}; 6054481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiuconst char* gVS_Header_Uniforms_HasBitmap = 6154481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu "uniform mat4 textureTransform;\n" 6254481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu "uniform mediump vec2 textureDimension;\n"; 6354481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiuconst char* gVS_Header_Varyings_HasTexture = 6471a988c8e9859244b83cd55bb6b6ee913fcaf95cJan Nordqvist "varying vec2 outTexCoords;\n"; 6554481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiuconst char* gVS_Header_Varyings_IsAA = 6654481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu "varying float widthProportion;\n" 6754481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu "varying float lengthProportion;\n"; 6854481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiuconst char* gVS_Header_Varyings_HasBitmap[2] = { 6954481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu // Default precision 7071a988c8e9859244b83cd55bb6b6ee913fcaf95cJan Nordqvist "varying vec2 outBitmapTexCoords;\n", 7154481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu // High precision 7254481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu "varying highp vec2 outBitmapTexCoords;\n" 7354481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu}; 7454481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiuconst char* gVS_Header_Varyings_PointHasBitmap[2] = { 7554481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu // Default precision 7671a988c8e9859244b83cd55bb6b6ee913fcaf95cJan Nordqvist "varying vec2 outPointBitmapTexCoords;\n", 7771a988c8e9859244b83cd55bb6b6ee913fcaf95cJan Nordqvist // High precision 7854481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu "varying highp vec2 outPointBitmapTexCoords;\n" 7954481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu}; 8071a988c8e9859244b83cd55bb6b6ee913fcaf95cJan Nordqvistconst char* gVS_Header_Varyings_HasGradient[3] = { 8154481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu // Linear 8271a988c8e9859244b83cd55bb6b6ee913fcaf95cJan Nordqvist "varying vec2 linear;\n", 8354481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu // Circular 8471a988c8e9859244b83cd55bb6b6ee913fcaf95cJan Nordqvist "varying vec2 circular;\n", 8571a988c8e9859244b83cd55bb6b6ee913fcaf95cJan Nordqvist // Sweep 8654481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu "varying vec2 sweep;\n" 8771a988c8e9859244b83cd55bb6b6ee913fcaf95cJan Nordqvist}; 8871a988c8e9859244b83cd55bb6b6ee913fcaf95cJan Nordqvistconst char* gVS_Main = 8954481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu "\nvoid main(void) {\n"; 9054481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiuconst char* gVS_Main_OutTexCoords = 916a3903fed590e369b576bddbe1ae2d788768ddfeJan Nordqvist " outTexCoords = texCoords;\n"; 926a3903fed590e369b576bddbe1ae2d788768ddfeJan Nordqvistconst char* gVS_Main_OutTransformedTexCoords = 9354481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu " outTexCoords = (mainTextureTransform * vec4(texCoords, 0.0, 1.0)).xy;\n"; 9454481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiuconst char* gVS_Main_OutGradient[3] = { 9554481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu // Linear 9654481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu " linear = vec2((screenSpace * position).x, 0.5);\n", 9754481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu // Circular 9854481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu " circular = (screenSpace * position).xy;\n", 9954481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu // Sweep 10054481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu " sweep = (screenSpace * position).xy;\n" 10154481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu}; 10254481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiuconst char* gVS_Main_OutBitmapTexCoords = 10354481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu " outBitmapTexCoords = (textureTransform * position).xy * textureDimension;\n"; 10454481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiuconst char* gVS_Main_OutPointBitmapTexCoords = 10554481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu " outPointBitmapTexCoords = (textureTransform * position).xy * textureDimension;\n"; 10654481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiuconst char* gVS_Main_Position = 10754481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiu " gl_Position = transform * position;\n"; 10854481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiuconst char* gVS_Main_PointSize = 1096a3903fed590e369b576bddbe1ae2d788768ddfeJan Nordqvist " gl_PointSize = pointSize;\n"; 1106a3903fed590e369b576bddbe1ae2d788768ddfeJan Nordqvistconst char* gVS_Main_AA = 1116a3903fed590e369b576bddbe1ae2d788768ddfeJan Nordqvist " widthProportion = vtxWidth;\n" 1126a3903fed590e369b576bddbe1ae2d788768ddfeJan Nordqvist " lengthProportion = vtxLength;\n"; 11354481f724e41249c4e036a9f59e8cb3e6fb821d8Peter Qiuconst char* gVS_Footer = 1146a3903fed590e369b576bddbe1ae2d788768ddfeJan Nordqvist "}\n\n"; 1156a3903fed590e369b576bddbe1ae2d788768ddfeJan Nordqvist 116/////////////////////////////////////////////////////////////////////////////// 117// Fragment shaders snippets 118/////////////////////////////////////////////////////////////////////////////// 119 120const char* gFS_Header_Extension_FramebufferFetch = 121 "#extension GL_NV_shader_framebuffer_fetch : enable\n\n"; 122const char* gFS_Header_Extension_ExternalTexture = 123 "#extension GL_OES_EGL_image_external : require\n\n"; 124const char* gFS_Header = 125 "precision mediump float;\n\n"; 126const char* gFS_Uniforms_Color = 127 "uniform vec4 color;\n"; 128const char* gFS_Uniforms_AA = 129 "uniform float boundaryWidth;\n" 130 "uniform float inverseBoundaryWidth;\n" 131 "uniform float boundaryLength;\n" 132 "uniform float inverseBoundaryLength;\n"; 133const char* gFS_Header_Uniforms_PointHasBitmap = 134 "uniform vec2 textureDimension;\n" 135 "uniform float pointSize;\n"; 136const char* gFS_Uniforms_TextureSampler = 137 "uniform sampler2D sampler;\n"; 138const char* gFS_Uniforms_ExternalTextureSampler = 139 "uniform samplerExternalOES sampler;\n"; 140const char* gFS_Uniforms_GradientSampler[3] = { 141 // Linear 142 "uniform sampler2D gradientSampler;\n", 143 // Circular 144 "uniform sampler2D gradientSampler;\n", 145 // Sweep 146 "uniform sampler2D gradientSampler;\n" 147}; 148const char* gFS_Uniforms_BitmapSampler = 149 "uniform sampler2D bitmapSampler;\n"; 150const char* gFS_Uniforms_ColorOp[4] = { 151 // None 152 "", 153 // Matrix 154 "uniform mat4 colorMatrix;\n" 155 "uniform vec4 colorMatrixVector;\n", 156 // Lighting 157 "uniform vec4 lightingMul;\n" 158 "uniform vec4 lightingAdd;\n", 159 // PorterDuff 160 "uniform vec4 colorBlend;\n" 161}; 162const char* gFS_Uniforms_Gamma = 163 "uniform float gamma;\n"; 164 165const char* gFS_Main = 166 "\nvoid main(void) {\n" 167 " lowp vec4 fragColor;\n"; 168 169const char* gFS_Main_PointBitmapTexCoords = 170 " vec2 outBitmapTexCoords = outPointBitmapTexCoords + " 171 "((gl_PointCoord - vec2(0.5, 0.5)) * textureDimension * vec2(pointSize, pointSize));\n"; 172 173// Fast cases 174const char* gFS_Fast_SingleColor = 175 "\nvoid main(void) {\n" 176 " gl_FragColor = color;\n" 177 "}\n\n"; 178const char* gFS_Fast_SingleTexture = 179 "\nvoid main(void) {\n" 180 " gl_FragColor = texture2D(sampler, outTexCoords);\n" 181 "}\n\n"; 182const char* gFS_Fast_SingleModulateTexture = 183 "\nvoid main(void) {\n" 184 " gl_FragColor = color.a * texture2D(sampler, outTexCoords);\n" 185 "}\n\n"; 186const char* gFS_Fast_SingleA8Texture = 187 "\nvoid main(void) {\n" 188 " gl_FragColor = texture2D(sampler, outTexCoords);\n" 189 "}\n\n"; 190const char* gFS_Fast_SingleA8Texture_ApplyGamma = 191 "\nvoid main(void) {\n" 192 " gl_FragColor = vec4(0.0, 0.0, 0.0, pow(texture2D(sampler, outTexCoords).a, gamma));\n" 193 "}\n\n"; 194const char* gFS_Fast_SingleModulateA8Texture = 195 "\nvoid main(void) {\n" 196 " gl_FragColor = color * texture2D(sampler, outTexCoords).a;\n" 197 "}\n\n"; 198const char* gFS_Fast_SingleModulateA8Texture_ApplyGamma = 199 "\nvoid main(void) {\n" 200 " gl_FragColor = color * pow(texture2D(sampler, outTexCoords).a, gamma);\n" 201 "}\n\n"; 202const char* gFS_Fast_SingleGradient = 203 "\nvoid main(void) {\n" 204 " gl_FragColor = texture2D(gradientSampler, linear);\n" 205 "}\n\n"; 206const char* gFS_Fast_SingleModulateGradient = 207 "\nvoid main(void) {\n" 208 " gl_FragColor = color.a * texture2D(gradientSampler, linear);\n" 209 "}\n\n"; 210 211// General case 212const char* gFS_Main_FetchColor = 213 " fragColor = color;\n"; 214const char* gFS_Main_ModulateColor = 215 " fragColor *= color.a;\n"; 216const char* gFS_Main_ModulateColor_ApplyGamma = 217 " fragColor *= pow(color.a, gamma);\n"; 218const char* gFS_Main_AccountForAA = 219 " if (widthProportion < boundaryWidth) {\n" 220 " fragColor *= (widthProportion * inverseBoundaryWidth);\n" 221 " } else if (widthProportion > (1.0 - boundaryWidth)) {\n" 222 " fragColor *= ((1.0 - widthProportion) * inverseBoundaryWidth);\n" 223 " }\n" 224 " if (lengthProportion < boundaryLength) {\n" 225 " fragColor *= (lengthProportion * inverseBoundaryLength);\n" 226 " } else if (lengthProportion > (1.0 - boundaryLength)) {\n" 227 " fragColor *= ((1.0 - lengthProportion) * inverseBoundaryLength);\n" 228 " }\n"; 229const char* gFS_Main_FetchTexture[2] = { 230 // Don't modulate 231 " fragColor = texture2D(sampler, outTexCoords);\n", 232 // Modulate 233 " fragColor = color * texture2D(sampler, outTexCoords);\n" 234}; 235const char* gFS_Main_FetchA8Texture[2] = { 236 // Don't modulate 237 " fragColor = texture2D(sampler, outTexCoords);\n", 238 // Modulate 239 " fragColor = color * texture2D(sampler, outTexCoords).a;\n" 240}; 241const char* gFS_Main_FetchGradient[3] = { 242 // Linear 243 " vec4 gradientColor = texture2D(gradientSampler, linear);\n", 244 // Circular 245 " float index = length(circular);\n" 246 " vec4 gradientColor = texture2D(gradientSampler, vec2(index, 0.5));\n", 247 // Sweep 248 " float index = atan(sweep.y, sweep.x) * 0.15915494309; // inv(2 * PI)\n" 249 " vec4 gradientColor = texture2D(gradientSampler, vec2(index - floor(index), 0.5));\n" 250}; 251const char* gFS_Main_FetchBitmap = 252 " vec4 bitmapColor = texture2D(bitmapSampler, outBitmapTexCoords);\n"; 253const char* gFS_Main_FetchBitmapNpot = 254 " vec4 bitmapColor = texture2D(bitmapSampler, wrap(outBitmapTexCoords));\n"; 255const char* gFS_Main_BlendShadersBG = 256 " fragColor = blendShaders(gradientColor, bitmapColor)"; 257const char* gFS_Main_BlendShadersGB = 258 " fragColor = blendShaders(bitmapColor, gradientColor)"; 259const char* gFS_Main_BlendShaders_Modulate[3] = { 260 // Don't modulate 261 ";\n", 262 // Modulate 263 " * fragColor.a;\n", 264 // Modulate with alpha 8 texture 265 " * texture2D(sampler, outTexCoords).a;\n" 266}; 267const char* gFS_Main_GradientShader_Modulate[3] = { 268 // Don't modulate 269 " fragColor = gradientColor;\n", 270 // Modulate 271 " fragColor = gradientColor * fragColor.a;\n", 272 // Modulate with alpha 8 texture 273 " fragColor = gradientColor * texture2D(sampler, outTexCoords).a;\n" 274 }; 275const char* gFS_Main_BitmapShader_Modulate[3] = { 276 // Don't modulate 277 " fragColor = bitmapColor;\n", 278 // Modulate 279 " fragColor = bitmapColor * fragColor.a;\n", 280 // Modulate with alpha 8 texture 281 " fragColor = bitmapColor * texture2D(sampler, outTexCoords).a;\n" 282 }; 283const char* gFS_Main_FragColor = 284 " gl_FragColor = fragColor;\n"; 285const char* gFS_Main_FragColor_Blend = 286 " gl_FragColor = blendFramebuffer(fragColor, gl_LastFragColor);\n"; 287const char* gFS_Main_FragColor_Blend_Swap = 288 " gl_FragColor = blendFramebuffer(gl_LastFragColor, fragColor);\n"; 289const char* gFS_Main_ApplyColorOp[4] = { 290 // None 291 "", 292 // Matrix 293 // TODO: Fix premultiplied alpha computations for color matrix 294 " fragColor *= colorMatrix;\n" 295 " fragColor += colorMatrixVector;\n" 296 " fragColor.rgb *= fragColor.a;\n", 297 // Lighting 298 " float lightingAlpha = fragColor.a;\n" 299 " fragColor = min(fragColor * lightingMul + (lightingAdd * lightingAlpha), lightingAlpha);\n" 300 " fragColor.a = lightingAlpha;\n", 301 // PorterDuff 302 " fragColor = blendColors(colorBlend, fragColor);\n" 303}; 304const char* gFS_Footer = 305 "}\n\n"; 306 307/////////////////////////////////////////////////////////////////////////////// 308// PorterDuff snippets 309/////////////////////////////////////////////////////////////////////////////// 310 311const char* gBlendOps[18] = { 312 // Clear 313 "return vec4(0.0, 0.0, 0.0, 0.0);\n", 314 // Src 315 "return src;\n", 316 // Dst 317 "return dst;\n", 318 // SrcOver 319 "return src + dst * (1.0 - src.a);\n", 320 // DstOver 321 "return dst + src * (1.0 - dst.a);\n", 322 // SrcIn 323 "return src * dst.a;\n", 324 // DstIn 325 "return dst * src.a;\n", 326 // SrcOut 327 "return src * (1.0 - dst.a);\n", 328 // DstOut 329 "return dst * (1.0 - src.a);\n", 330 // SrcAtop 331 "return vec4(src.rgb * dst.a + (1.0 - src.a) * dst.rgb, dst.a);\n", 332 // DstAtop 333 "return vec4(dst.rgb * src.a + (1.0 - dst.a) * src.rgb, src.a);\n", 334 // Xor 335 "return vec4(src.rgb * (1.0 - dst.a) + (1.0 - src.a) * dst.rgb, " 336 "src.a + dst.a - 2.0 * src.a * dst.a);\n", 337 // Add 338 "return min(src + dst, 1.0);\n", 339 // Multiply 340 "return src * dst;\n", 341 // Screen 342 "return src + dst - src * dst;\n", 343 // Overlay 344 "return clamp(vec4(mix(" 345 "2.0 * src.rgb * dst.rgb + src.rgb * (1.0 - dst.a) + dst.rgb * (1.0 - src.a), " 346 "src.a * dst.a - 2.0 * (dst.a - dst.rgb) * (src.a - src.rgb) + src.rgb * (1.0 - dst.a) + dst.rgb * (1.0 - src.a), " 347 "step(dst.a, 2.0 * dst.rgb)), " 348 "src.a + dst.a - src.a * dst.a), 0.0, 1.0);\n", 349 // Darken 350 "return vec4(src.rgb * (1.0 - dst.a) + (1.0 - src.a) * dst.rgb + " 351 "min(src.rgb * dst.a, dst.rgb * src.a), src.a + dst.a - src.a * dst.a);\n", 352 // Lighten 353 "return vec4(src.rgb * (1.0 - dst.a) + (1.0 - src.a) * dst.rgb + " 354 "max(src.rgb * dst.a, dst.rgb * src.a), src.a + dst.a - src.a * dst.a);\n", 355}; 356 357/////////////////////////////////////////////////////////////////////////////// 358// Constructors/destructors 359/////////////////////////////////////////////////////////////////////////////// 360 361ProgramCache::ProgramCache() { 362} 363 364ProgramCache::~ProgramCache() { 365 clear(); 366} 367 368/////////////////////////////////////////////////////////////////////////////// 369// Cache management 370/////////////////////////////////////////////////////////////////////////////// 371 372void ProgramCache::clear() { 373 PROGRAM_LOGD("Clearing program cache"); 374 375 size_t count = mCache.size(); 376 for (size_t i = 0; i < count; i++) { 377 delete mCache.valueAt(i); 378 } 379 mCache.clear(); 380} 381 382Program* ProgramCache::get(const ProgramDescription& description) { 383 programid key = description.key(); 384 ssize_t index = mCache.indexOfKey(key); 385 Program* program = NULL; 386 if (index < 0) { 387 description.log("Could not find program"); 388 program = generateProgram(description, key); 389 mCache.add(key, program); 390 } else { 391 program = mCache.valueAt(index); 392 } 393 return program; 394} 395 396/////////////////////////////////////////////////////////////////////////////// 397// Program generation 398/////////////////////////////////////////////////////////////////////////////// 399 400Program* ProgramCache::generateProgram(const ProgramDescription& description, programid key) { 401 String8 vertexShader = generateVertexShader(description); 402 String8 fragmentShader = generateFragmentShader(description); 403 404 Program* program = new Program(description, vertexShader.string(), fragmentShader.string()); 405 return program; 406} 407 408String8 ProgramCache::generateVertexShader(const ProgramDescription& description) { 409 // Add attributes 410 String8 shader(gVS_Header_Attributes); 411 if (description.hasTexture || description.hasExternalTexture) { 412 shader.append(gVS_Header_Attributes_TexCoords); 413 } 414 if (description.isAA) { 415 shader.append(gVS_Header_Attributes_AAParameters); 416 } 417 // Uniforms 418 shader.append(gVS_Header_Uniforms); 419 if (description.hasTextureTransform) { 420 shader.append(gVS_Header_Uniforms_TextureTransform); 421 } 422 if (description.hasGradient) { 423 shader.append(gVS_Header_Uniforms_HasGradient[description.gradientType]); 424 } 425 if (description.hasBitmap) { 426 shader.append(gVS_Header_Uniforms_HasBitmap); 427 } 428 if (description.isPoint) { 429 shader.append(gVS_Header_Uniforms_IsPoint); 430 } 431 // Varyings 432 if (description.hasTexture || description.hasExternalTexture) { 433 shader.append(gVS_Header_Varyings_HasTexture); 434 } 435 if (description.isAA) { 436 shader.append(gVS_Header_Varyings_IsAA); 437 } 438 if (description.hasGradient) { 439 shader.append(gVS_Header_Varyings_HasGradient[description.gradientType]); 440 } 441 if (description.hasBitmap) { 442 int index = Caches::getInstance().extensions.needsHighpTexCoords() ? 1 : 0; 443 shader.append(description.isPoint ? 444 gVS_Header_Varyings_PointHasBitmap[index] : 445 gVS_Header_Varyings_HasBitmap[index]); 446 } 447 448 // Begin the shader 449 shader.append(gVS_Main); { 450 if (description.hasTextureTransform) { 451 shader.append(gVS_Main_OutTransformedTexCoords); 452 } else if (description.hasTexture || description.hasExternalTexture) { 453 shader.append(gVS_Main_OutTexCoords); 454 } 455 if (description.isAA) { 456 shader.append(gVS_Main_AA); 457 } 458 if (description.hasGradient) { 459 shader.append(gVS_Main_OutGradient[description.gradientType]); 460 } 461 if (description.hasBitmap) { 462 shader.append(description.isPoint ? 463 gVS_Main_OutPointBitmapTexCoords : 464 gVS_Main_OutBitmapTexCoords); 465 } 466 if (description.isPoint) { 467 shader.append(gVS_Main_PointSize); 468 } 469 // Output transformed position 470 shader.append(gVS_Main_Position); 471 } 472 // End the shader 473 shader.append(gVS_Footer); 474 475 PROGRAM_LOGD("*** Generated vertex shader:\n\n%s", shader.string()); 476 477 return shader; 478} 479 480String8 ProgramCache::generateFragmentShader(const ProgramDescription& description) { 481 String8 shader; 482 483 const bool blendFramebuffer = description.framebufferMode >= SkXfermode::kPlus_Mode; 484 if (blendFramebuffer) { 485 shader.append(gFS_Header_Extension_FramebufferFetch); 486 } 487 if (description.hasExternalTexture) { 488 shader.append(gFS_Header_Extension_ExternalTexture); 489 } 490 491 shader.append(gFS_Header); 492 493 // Varyings 494 if (description.hasTexture || description.hasExternalTexture) { 495 shader.append(gVS_Header_Varyings_HasTexture); 496 } 497 if (description.isAA) { 498 shader.append(gVS_Header_Varyings_IsAA); 499 } 500 if (description.hasGradient) { 501 shader.append(gVS_Header_Varyings_HasGradient[description.gradientType]); 502 } 503 if (description.hasBitmap) { 504 int index = Caches::getInstance().extensions.needsHighpTexCoords() ? 1 : 0; 505 shader.append(description.isPoint ? 506 gVS_Header_Varyings_PointHasBitmap[index] : 507 gVS_Header_Varyings_HasBitmap[index]); 508 } 509 510 // Uniforms 511 int modulateOp = MODULATE_OP_NO_MODULATE; 512 const bool singleColor = !description.hasTexture && !description.hasExternalTexture && 513 !description.hasGradient && !description.hasBitmap; 514 515 if (description.modulate || singleColor) { 516 shader.append(gFS_Uniforms_Color); 517 if (!singleColor) modulateOp = MODULATE_OP_MODULATE; 518 } 519 if (description.hasTexture) { 520 shader.append(gFS_Uniforms_TextureSampler); 521 } else if (description.hasExternalTexture) { 522 shader.append(gFS_Uniforms_ExternalTextureSampler); 523 } 524 if (description.isAA) { 525 shader.append(gFS_Uniforms_AA); 526 } 527 if (description.hasGradient) { 528 shader.append(gFS_Uniforms_GradientSampler[description.gradientType]); 529 } 530 if (description.hasBitmap && description.isPoint) { 531 shader.append(gFS_Header_Uniforms_PointHasBitmap); 532 } 533 if (description.hasGammaCorrection) { 534 shader.append(gFS_Uniforms_Gamma); 535 } 536 537 // Optimization for common cases 538 if (!description.isAA && !blendFramebuffer && 539 description.colorOp == ProgramDescription::kColorNone && !description.isPoint) { 540 bool fast = false; 541 542 const bool noShader = !description.hasGradient && !description.hasBitmap; 543 const bool singleTexture = (description.hasTexture || description.hasExternalTexture) && 544 !description.hasAlpha8Texture && noShader; 545 const bool singleA8Texture = description.hasTexture && 546 description.hasAlpha8Texture && noShader; 547 const bool singleGradient = !description.hasTexture && !description.hasExternalTexture && 548 description.hasGradient && !description.hasBitmap && 549 description.gradientType == ProgramDescription::kGradientLinear; 550 551 if (singleColor) { 552 shader.append(gFS_Fast_SingleColor); 553 fast = true; 554 } else if (singleTexture) { 555 if (!description.modulate) { 556 shader.append(gFS_Fast_SingleTexture); 557 } else { 558 shader.append(gFS_Fast_SingleModulateTexture); 559 } 560 fast = true; 561 } else if (singleA8Texture) { 562 if (!description.modulate) { 563 if (description.hasGammaCorrection) { 564 shader.append(gFS_Fast_SingleA8Texture_ApplyGamma); 565 } else { 566 shader.append(gFS_Fast_SingleA8Texture); 567 } 568 } else { 569 if (description.hasGammaCorrection) { 570 shader.append(gFS_Fast_SingleModulateA8Texture_ApplyGamma); 571 } else { 572 shader.append(gFS_Fast_SingleModulateA8Texture); 573 } 574 } 575 fast = true; 576 } else if (singleGradient) { 577 if (!description.modulate) { 578 shader.append(gFS_Fast_SingleGradient); 579 } else { 580 shader.append(gFS_Fast_SingleModulateGradient); 581 } 582 fast = true; 583 } 584 585 if (fast) { 586#if DEBUG_PROGRAMS 587 PROGRAM_LOGD("*** Fast case:\n"); 588 PROGRAM_LOGD("*** Generated fragment shader:\n\n"); 589 printLongString(shader); 590#endif 591 592 return shader; 593 } 594 } 595 596 if (description.hasBitmap) { 597 shader.append(gFS_Uniforms_BitmapSampler); 598 } 599 shader.append(gFS_Uniforms_ColorOp[description.colorOp]); 600 601 // Generate required functions 602 if (description.hasGradient && description.hasBitmap) { 603 generateBlend(shader, "blendShaders", description.shadersMode); 604 } 605 if (description.colorOp == ProgramDescription::kColorBlend) { 606 generateBlend(shader, "blendColors", description.colorMode); 607 } 608 if (blendFramebuffer) { 609 generateBlend(shader, "blendFramebuffer", description.framebufferMode); 610 } 611 if (description.isBitmapNpot) { 612 generateTextureWrap(shader, description.bitmapWrapS, description.bitmapWrapT); 613 } 614 615 // Begin the shader 616 shader.append(gFS_Main); { 617 // Stores the result in fragColor directly 618 if (description.hasTexture || description.hasExternalTexture) { 619 if (description.hasAlpha8Texture) { 620 if (!description.hasGradient && !description.hasBitmap) { 621 shader.append(gFS_Main_FetchA8Texture[modulateOp]); 622 } 623 } else { 624 shader.append(gFS_Main_FetchTexture[modulateOp]); 625 } 626 } else { 627 if ((!description.hasGradient && !description.hasBitmap) || description.modulate) { 628 shader.append(gFS_Main_FetchColor); 629 } 630 } 631 if (description.isAA) { 632 shader.append(gFS_Main_AccountForAA); 633 } 634 if (description.hasGradient) { 635 shader.append(gFS_Main_FetchGradient[description.gradientType]); 636 } 637 if (description.hasBitmap) { 638 if (description.isPoint) { 639 shader.append(gFS_Main_PointBitmapTexCoords); 640 } 641 if (!description.isBitmapNpot) { 642 shader.append(gFS_Main_FetchBitmap); 643 } else { 644 shader.append(gFS_Main_FetchBitmapNpot); 645 } 646 } 647 bool applyModulate = false; 648 // Case when we have two shaders set 649 if (description.hasGradient && description.hasBitmap) { 650 int op = description.hasAlpha8Texture ? MODULATE_OP_MODULATE_A8 : modulateOp; 651 if (description.isBitmapFirst) { 652 shader.append(gFS_Main_BlendShadersBG); 653 } else { 654 shader.append(gFS_Main_BlendShadersGB); 655 } 656 shader.append(gFS_Main_BlendShaders_Modulate[op]); 657 applyModulate = true; 658 } else { 659 if (description.hasGradient) { 660 int op = description.hasAlpha8Texture ? MODULATE_OP_MODULATE_A8 : modulateOp; 661 shader.append(gFS_Main_GradientShader_Modulate[op]); 662 applyModulate = true; 663 } else if (description.hasBitmap) { 664 int op = description.hasAlpha8Texture ? MODULATE_OP_MODULATE_A8 : modulateOp; 665 shader.append(gFS_Main_BitmapShader_Modulate[op]); 666 applyModulate = true; 667 } 668 } 669 if (description.modulate && applyModulate) { 670 if (description.hasGammaCorrection) { 671 shader.append(gFS_Main_ModulateColor_ApplyGamma); 672 } else { 673 shader.append(gFS_Main_ModulateColor); 674 } 675 } 676 // Apply the color op if needed 677 shader.append(gFS_Main_ApplyColorOp[description.colorOp]); 678 // Output the fragment 679 if (!blendFramebuffer) { 680 shader.append(gFS_Main_FragColor); 681 } else { 682 shader.append(!description.swapSrcDst ? 683 gFS_Main_FragColor_Blend : gFS_Main_FragColor_Blend_Swap); 684 } 685 } 686 // End the shader 687 shader.append(gFS_Footer); 688 689#if DEBUG_PROGRAMS 690 PROGRAM_LOGD("*** Generated fragment shader:\n\n"); 691 printLongString(shader); 692#endif 693 694 return shader; 695} 696 697void ProgramCache::generateBlend(String8& shader, const char* name, SkXfermode::Mode mode) { 698 shader.append("\nvec4 "); 699 shader.append(name); 700 shader.append("(vec4 src, vec4 dst) {\n"); 701 shader.append(" "); 702 shader.append(gBlendOps[mode]); 703 shader.append("}\n"); 704} 705 706void ProgramCache::generateTextureWrap(String8& shader, GLenum wrapS, GLenum wrapT) { 707 shader.append("\nvec2 wrap(vec2 texCoords) {\n"); 708 if (wrapS == GL_MIRRORED_REPEAT) { 709 shader.append(" float xMod2 = mod(texCoords.x, 2.0);\n"); 710 shader.append(" if (xMod2 > 1.0) xMod2 = 2.0 - xMod2;\n"); 711 } 712 if (wrapT == GL_MIRRORED_REPEAT) { 713 shader.append(" float yMod2 = mod(texCoords.y, 2.0);\n"); 714 shader.append(" if (yMod2 > 1.0) yMod2 = 2.0 - yMod2;\n"); 715 } 716 shader.append(" return vec2("); 717 switch (wrapS) { 718 case GL_CLAMP_TO_EDGE: 719 shader.append("texCoords.x"); 720 break; 721 case GL_REPEAT: 722 shader.append("mod(texCoords.x, 1.0)"); 723 break; 724 case GL_MIRRORED_REPEAT: 725 shader.append("xMod2"); 726 break; 727 } 728 shader.append(", "); 729 switch (wrapT) { 730 case GL_CLAMP_TO_EDGE: 731 shader.append("texCoords.y"); 732 break; 733 case GL_REPEAT: 734 shader.append("mod(texCoords.y, 1.0)"); 735 break; 736 case GL_MIRRORED_REPEAT: 737 shader.append("yMod2"); 738 break; 739 } 740 shader.append(");\n"); 741 shader.append("}\n"); 742} 743 744void ProgramCache::printLongString(const String8& shader) const { 745 ssize_t index = 0; 746 ssize_t lastIndex = 0; 747 const char* str = shader.string(); 748 while ((index = shader.find("\n", index)) > -1) { 749 String8 line(str, index - lastIndex); 750 if (line.length() == 0) line.append("\n"); 751 PROGRAM_LOGD("%s", line.string()); 752 index++; 753 str += (index - lastIndex); 754 lastIndex = index; 755 } 756} 757 758}; // namespace uirenderer 759}; // namespace android 760