Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2010 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #define LOG_TAG "OpenGLRenderer" |
| 18 | |
| 19 | #include <utils/String8.h> |
| 20 | |
| 21 | #include "ProgramCache.h" |
| 22 | |
| 23 | namespace android { |
| 24 | namespace uirenderer { |
| 25 | |
| 26 | /////////////////////////////////////////////////////////////////////////////// |
Romain Guy | 707b2f7 | 2010-10-11 16:34:59 -0700 | [diff] [blame] | 27 | // Defines |
| 28 | /////////////////////////////////////////////////////////////////////////////// |
| 29 | |
| 30 | #define MODULATE_OP_NO_MODULATE 0 |
| 31 | #define MODULATE_OP_MODULATE 1 |
| 32 | #define MODULATE_OP_MODULATE_A8 2 |
| 33 | |
| 34 | /////////////////////////////////////////////////////////////////////////////// |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 35 | // Vertex shaders snippets |
| 36 | /////////////////////////////////////////////////////////////////////////////// |
| 37 | |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 38 | const char* gVS_Header_Attributes = |
| 39 | "attribute vec4 position;\n"; |
| 40 | const char* gVS_Header_Attributes_TexCoords = |
| 41 | "attribute vec2 texCoords;\n"; |
Chet Haase | 99585ad | 2011-05-02 15:00:16 -0700 | [diff] [blame] | 42 | const char* gVS_Header_Attributes_AAParameters = |
| 43 | "attribute float vtxWidth;\n" |
| 44 | "attribute float vtxLength;\n"; |
Romain Guy | aa6c24c | 2011-04-28 18:40:04 -0700 | [diff] [blame] | 45 | const char* gVS_Header_Uniforms_TextureTransform = |
| 46 | "uniform mat4 mainTextureTransform;\n"; |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 47 | const char* gVS_Header_Uniforms = |
| 48 | "uniform mat4 transform;\n"; |
Romain Guy | ed6fcb0 | 2011-03-21 13:11:28 -0700 | [diff] [blame] | 49 | const char* gVS_Header_Uniforms_IsPoint = |
Romain Guy | 80bbfb1 | 2011-03-23 16:56:28 -0700 | [diff] [blame] | 50 | "uniform mediump float pointSize;\n"; |
Romain Guy | ee916f1 | 2010-09-20 17:53:08 -0700 | [diff] [blame] | 51 | const char* gVS_Header_Uniforms_HasGradient[3] = { |
| 52 | // Linear |
Romain Guy | ee916f1 | 2010-09-20 17:53:08 -0700 | [diff] [blame] | 53 | "uniform mat4 screenSpace;\n", |
| 54 | // Circular |
Romain Guy | ddb80be | 2010-09-20 19:04:33 -0700 | [diff] [blame] | 55 | "uniform mat4 screenSpace;\n", |
Romain Guy | ee916f1 | 2010-09-20 17:53:08 -0700 | [diff] [blame] | 56 | // Sweep |
Romain Guy | ee916f1 | 2010-09-20 17:53:08 -0700 | [diff] [blame] | 57 | "uniform mat4 screenSpace;\n" |
| 58 | }; |
Romain Guy | 889f8d1 | 2010-07-29 14:37:42 -0700 | [diff] [blame] | 59 | const char* gVS_Header_Uniforms_HasBitmap = |
| 60 | "uniform mat4 textureTransform;\n" |
Romain Guy | 80bbfb1 | 2011-03-23 16:56:28 -0700 | [diff] [blame] | 61 | "uniform mediump vec2 textureDimension;\n"; |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 62 | const char* gVS_Header_Varyings_HasTexture = |
| 63 | "varying vec2 outTexCoords;\n"; |
Chet Haase | 99585ad | 2011-05-02 15:00:16 -0700 | [diff] [blame] | 64 | const char* gVS_Header_Varyings_IsAA = |
| 65 | "varying float widthProportion;\n" |
| 66 | "varying float lengthProportion;\n"; |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 67 | const char* gVS_Header_Varyings_HasBitmap = |
| 68 | "varying vec2 outBitmapTexCoords;\n"; |
Romain Guy | ed6fcb0 | 2011-03-21 13:11:28 -0700 | [diff] [blame] | 69 | const char* gVS_Header_Varyings_PointHasBitmap = |
| 70 | "varying vec2 outPointBitmapTexCoords;\n"; |
Romain Guy | ee916f1 | 2010-09-20 17:53:08 -0700 | [diff] [blame] | 71 | const char* gVS_Header_Varyings_HasGradient[3] = { |
| 72 | // Linear |
Romain Guy | 7537f85 | 2010-10-11 14:38:28 -0700 | [diff] [blame] | 73 | "varying vec2 linear;\n", |
Romain Guy | ee916f1 | 2010-09-20 17:53:08 -0700 | [diff] [blame] | 74 | // Circular |
Romain Guy | ddb80be | 2010-09-20 19:04:33 -0700 | [diff] [blame] | 75 | "varying vec2 circular;\n", |
Romain Guy | ee916f1 | 2010-09-20 17:53:08 -0700 | [diff] [blame] | 76 | // Sweep |
| 77 | "varying vec2 sweep;\n" |
| 78 | }; |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 79 | const char* gVS_Main = |
| 80 | "\nvoid main(void) {\n"; |
| 81 | const char* gVS_Main_OutTexCoords = |
| 82 | " outTexCoords = texCoords;\n"; |
Romain Guy | aa6c24c | 2011-04-28 18:40:04 -0700 | [diff] [blame] | 83 | const char* gVS_Main_OutTransformedTexCoords = |
| 84 | " outTexCoords = (mainTextureTransform * vec4(texCoords, 0.0, 1.0)).xy;\n"; |
Romain Guy | ee916f1 | 2010-09-20 17:53:08 -0700 | [diff] [blame] | 85 | const char* gVS_Main_OutGradient[3] = { |
| 86 | // Linear |
Romain Guy | 7537f85 | 2010-10-11 14:38:28 -0700 | [diff] [blame] | 87 | " linear = vec2((screenSpace * position).x, 0.5);\n", |
Romain Guy | ee916f1 | 2010-09-20 17:53:08 -0700 | [diff] [blame] | 88 | // Circular |
Romain Guy | 1483094 | 2010-10-07 15:07:45 -0700 | [diff] [blame] | 89 | " circular = (screenSpace * position).xy;\n", |
Romain Guy | ee916f1 | 2010-09-20 17:53:08 -0700 | [diff] [blame] | 90 | // Sweep |
Romain Guy | 1483094 | 2010-10-07 15:07:45 -0700 | [diff] [blame] | 91 | " sweep = (screenSpace * position).xy;\n" |
Romain Guy | ee916f1 | 2010-09-20 17:53:08 -0700 | [diff] [blame] | 92 | }; |
Romain Guy | 889f8d1 | 2010-07-29 14:37:42 -0700 | [diff] [blame] | 93 | const char* gVS_Main_OutBitmapTexCoords = |
Romain Guy | 707b2f7 | 2010-10-11 16:34:59 -0700 | [diff] [blame] | 94 | " outBitmapTexCoords = (textureTransform * position).xy * textureDimension;\n"; |
Romain Guy | ed6fcb0 | 2011-03-21 13:11:28 -0700 | [diff] [blame] | 95 | const char* gVS_Main_OutPointBitmapTexCoords = |
| 96 | " outPointBitmapTexCoords = (textureTransform * position).xy * textureDimension;\n"; |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 97 | const char* gVS_Main_Position = |
| 98 | " gl_Position = transform * position;\n"; |
Romain Guy | ed6fcb0 | 2011-03-21 13:11:28 -0700 | [diff] [blame] | 99 | const char* gVS_Main_PointSize = |
| 100 | " gl_PointSize = pointSize;\n"; |
Chet Haase | 99585ad | 2011-05-02 15:00:16 -0700 | [diff] [blame] | 101 | const char* gVS_Main_AA = |
| 102 | " widthProportion = vtxWidth;\n" |
| 103 | " lengthProportion = vtxLength;\n"; |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 104 | const char* gVS_Footer = |
| 105 | "}\n\n"; |
| 106 | |
| 107 | /////////////////////////////////////////////////////////////////////////////// |
| 108 | // Fragment shaders snippets |
| 109 | /////////////////////////////////////////////////////////////////////////////// |
| 110 | |
Romain Guy | a5aed0d | 2010-09-09 14:42:43 -0700 | [diff] [blame] | 111 | const char* gFS_Header_Extension_FramebufferFetch = |
| 112 | "#extension GL_NV_shader_framebuffer_fetch : enable\n\n"; |
Romain Guy | aa6c24c | 2011-04-28 18:40:04 -0700 | [diff] [blame] | 113 | const char* gFS_Header_Extension_ExternalTexture = |
| 114 | "#extension GL_OES_EGL_image_external : require\n\n"; |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 115 | const char* gFS_Header = |
| 116 | "precision mediump float;\n\n"; |
| 117 | const char* gFS_Uniforms_Color = |
| 118 | "uniform vec4 color;\n"; |
Chet Haase | 99585ad | 2011-05-02 15:00:16 -0700 | [diff] [blame] | 119 | const char* gFS_Uniforms_AA = |
Chet Haase | 5b0200b | 2011-04-13 17:58:08 -0700 | [diff] [blame] | 120 | "uniform float boundaryWidth;\n" |
Chet Haase | 99585ad | 2011-05-02 15:00:16 -0700 | [diff] [blame] | 121 | "uniform float inverseBoundaryWidth;\n" |
| 122 | "uniform float boundaryLength;\n" |
| 123 | "uniform float inverseBoundaryLength;\n"; |
Romain Guy | ed6fcb0 | 2011-03-21 13:11:28 -0700 | [diff] [blame] | 124 | const char* gFS_Header_Uniforms_PointHasBitmap = |
| 125 | "uniform vec2 textureDimension;\n" |
| 126 | "uniform float pointSize;\n"; |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 127 | const char* gFS_Uniforms_TextureSampler = |
| 128 | "uniform sampler2D sampler;\n"; |
Romain Guy | aa6c24c | 2011-04-28 18:40:04 -0700 | [diff] [blame] | 129 | const char* gFS_Uniforms_ExternalTextureSampler = |
| 130 | "uniform samplerExternalOES sampler;\n"; |
Romain Guy | ee916f1 | 2010-09-20 17:53:08 -0700 | [diff] [blame] | 131 | const char* gFS_Uniforms_GradientSampler[3] = { |
| 132 | // Linear |
| 133 | "uniform sampler2D gradientSampler;\n", |
| 134 | // Circular |
| 135 | "uniform sampler2D gradientSampler;\n", |
| 136 | // Sweep |
| 137 | "uniform sampler2D gradientSampler;\n" |
| 138 | }; |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 139 | const char* gFS_Uniforms_BitmapSampler = |
| 140 | "uniform sampler2D bitmapSampler;\n"; |
| 141 | const char* gFS_Uniforms_ColorOp[4] = { |
| 142 | // None |
| 143 | "", |
| 144 | // Matrix |
| 145 | "uniform mat4 colorMatrix;\n" |
| 146 | "uniform vec4 colorMatrixVector;\n", |
| 147 | // Lighting |
Romain Guy | db1938e | 2010-08-02 18:50:22 -0700 | [diff] [blame] | 148 | "uniform vec4 lightingMul;\n" |
| 149 | "uniform vec4 lightingAdd;\n", |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 150 | // PorterDuff |
Romain Guy | db1938e | 2010-08-02 18:50:22 -0700 | [diff] [blame] | 151 | "uniform vec4 colorBlend;\n" |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 152 | }; |
| 153 | const char* gFS_Main = |
| 154 | "\nvoid main(void) {\n" |
Romain Guy | 7fbcc04 | 2010-08-04 15:40:07 -0700 | [diff] [blame] | 155 | " lowp vec4 fragColor;\n"; |
Romain Guy | 707b2f7 | 2010-10-11 16:34:59 -0700 | [diff] [blame] | 156 | |
Romain Guy | ed6fcb0 | 2011-03-21 13:11:28 -0700 | [diff] [blame] | 157 | const char* gFS_Main_PointBitmapTexCoords = |
| 158 | " vec2 outBitmapTexCoords = outPointBitmapTexCoords + " |
| 159 | "((gl_PointCoord - vec2(0.5, 0.5)) * textureDimension * vec2(pointSize, pointSize));\n"; |
| 160 | |
Romain Guy | 707b2f7 | 2010-10-11 16:34:59 -0700 | [diff] [blame] | 161 | // Fast cases |
| 162 | const char* gFS_Fast_SingleColor = |
| 163 | "\nvoid main(void) {\n" |
| 164 | " gl_FragColor = color;\n" |
| 165 | "}\n\n"; |
| 166 | const char* gFS_Fast_SingleTexture = |
| 167 | "\nvoid main(void) {\n" |
| 168 | " gl_FragColor = texture2D(sampler, outTexCoords);\n" |
| 169 | "}\n\n"; |
| 170 | const char* gFS_Fast_SingleModulateTexture = |
| 171 | "\nvoid main(void) {\n" |
| 172 | " gl_FragColor = color.a * texture2D(sampler, outTexCoords);\n" |
| 173 | "}\n\n"; |
| 174 | const char* gFS_Fast_SingleA8Texture = |
| 175 | "\nvoid main(void) {\n" |
Romain Guy | 9db9124 | 2010-10-12 13:13:09 -0700 | [diff] [blame] | 176 | " gl_FragColor = texture2D(sampler, outTexCoords);\n" |
Romain Guy | 707b2f7 | 2010-10-11 16:34:59 -0700 | [diff] [blame] | 177 | "}\n\n"; |
| 178 | const char* gFS_Fast_SingleModulateA8Texture = |
| 179 | "\nvoid main(void) {\n" |
| 180 | " gl_FragColor = color * texture2D(sampler, outTexCoords).a;\n" |
| 181 | "}\n\n"; |
| 182 | const char* gFS_Fast_SingleGradient = |
| 183 | "\nvoid main(void) {\n" |
| 184 | " gl_FragColor = texture2D(gradientSampler, linear);\n" |
| 185 | "}\n\n"; |
| 186 | const char* gFS_Fast_SingleModulateGradient = |
| 187 | "\nvoid main(void) {\n" |
| 188 | " gl_FragColor = color.a * texture2D(gradientSampler, linear);\n" |
| 189 | "}\n\n"; |
| 190 | |
| 191 | // General case |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 192 | const char* gFS_Main_FetchColor = |
| 193 | " fragColor = color;\n"; |
Romain Guy | 740bf2b | 2011-04-26 15:33:10 -0700 | [diff] [blame] | 194 | const char* gFS_Main_ModulateColor = |
| 195 | " fragColor *= color.a;\n"; |
Chet Haase | 99585ad | 2011-05-02 15:00:16 -0700 | [diff] [blame] | 196 | const char* gFS_Main_AccountForAA = |
| 197 | " if (widthProportion < boundaryWidth) {\n" |
| 198 | " fragColor *= (widthProportion * inverseBoundaryWidth);\n" |
| 199 | " } else if (widthProportion > (1.0 - boundaryWidth)) {\n" |
| 200 | " fragColor *= ((1.0 - widthProportion) * inverseBoundaryWidth);\n" |
| 201 | " }\n" |
| 202 | " if (lengthProportion < boundaryLength) {\n" |
| 203 | " fragColor *= (lengthProportion * inverseBoundaryLength);\n" |
| 204 | " } else if (lengthProportion > (1.0 - boundaryLength)) {\n" |
| 205 | " fragColor *= ((1.0 - lengthProportion) * inverseBoundaryLength);\n" |
Chet Haase | 5b0200b | 2011-04-13 17:58:08 -0700 | [diff] [blame] | 206 | " }\n"; |
Romain Guy | 707b2f7 | 2010-10-11 16:34:59 -0700 | [diff] [blame] | 207 | const char* gFS_Main_FetchTexture[2] = { |
| 208 | // Don't modulate |
| 209 | " fragColor = texture2D(sampler, outTexCoords);\n", |
| 210 | // Modulate |
| 211 | " fragColor = color * texture2D(sampler, outTexCoords);\n" |
| 212 | }; |
| 213 | const char* gFS_Main_FetchA8Texture[2] = { |
| 214 | // Don't modulate |
Romain Guy | 9db9124 | 2010-10-12 13:13:09 -0700 | [diff] [blame] | 215 | " fragColor = texture2D(sampler, outTexCoords);\n", |
Romain Guy | 707b2f7 | 2010-10-11 16:34:59 -0700 | [diff] [blame] | 216 | // Modulate |
| 217 | " fragColor = color * texture2D(sampler, outTexCoords).a;\n" |
| 218 | }; |
Romain Guy | ee916f1 | 2010-09-20 17:53:08 -0700 | [diff] [blame] | 219 | const char* gFS_Main_FetchGradient[3] = { |
| 220 | // Linear |
Romain Guy | 7537f85 | 2010-10-11 14:38:28 -0700 | [diff] [blame] | 221 | " vec4 gradientColor = texture2D(gradientSampler, linear);\n", |
Romain Guy | ee916f1 | 2010-09-20 17:53:08 -0700 | [diff] [blame] | 222 | // Circular |
Romain Guy | 1483094 | 2010-10-07 15:07:45 -0700 | [diff] [blame] | 223 | " float index = length(circular);\n" |
Romain Guy | ddb80be | 2010-09-20 19:04:33 -0700 | [diff] [blame] | 224 | " vec4 gradientColor = texture2D(gradientSampler, vec2(index, 0.5));\n", |
Romain Guy | ee916f1 | 2010-09-20 17:53:08 -0700 | [diff] [blame] | 225 | // Sweep |
| 226 | " float index = atan(sweep.y, sweep.x) * 0.15915494309; // inv(2 * PI)\n" |
| 227 | " vec4 gradientColor = texture2D(gradientSampler, vec2(index - floor(index), 0.5));\n" |
| 228 | }; |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 229 | const char* gFS_Main_FetchBitmap = |
| 230 | " vec4 bitmapColor = texture2D(bitmapSampler, outBitmapTexCoords);\n"; |
Romain Guy | 889f8d1 | 2010-07-29 14:37:42 -0700 | [diff] [blame] | 231 | const char* gFS_Main_FetchBitmapNpot = |
| 232 | " vec4 bitmapColor = texture2D(bitmapSampler, wrap(outBitmapTexCoords));\n"; |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 233 | const char* gFS_Main_BlendShadersBG = |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 234 | " fragColor = blendShaders(gradientColor, bitmapColor)"; |
Romain Guy | 06f96e2 | 2010-07-30 19:18:16 -0700 | [diff] [blame] | 235 | const char* gFS_Main_BlendShadersGB = |
| 236 | " fragColor = blendShaders(bitmapColor, gradientColor)"; |
Romain Guy | 707b2f7 | 2010-10-11 16:34:59 -0700 | [diff] [blame] | 237 | const char* gFS_Main_BlendShaders_Modulate[3] = { |
| 238 | // Don't modulate |
| 239 | ";\n", |
| 240 | // Modulate |
| 241 | " * fragColor.a;\n", |
| 242 | // Modulate with alpha 8 texture |
| 243 | " * texture2D(sampler, outTexCoords).a;\n" |
| 244 | }; |
| 245 | const char* gFS_Main_GradientShader_Modulate[3] = { |
| 246 | // Don't modulate |
| 247 | " fragColor = gradientColor;\n", |
| 248 | // Modulate |
| 249 | " fragColor = gradientColor * fragColor.a;\n", |
| 250 | // Modulate with alpha 8 texture |
| 251 | " fragColor = gradientColor * texture2D(sampler, outTexCoords).a;\n" |
| 252 | }; |
| 253 | const char* gFS_Main_BitmapShader_Modulate[3] = { |
| 254 | // Don't modulate |
| 255 | " fragColor = bitmapColor;\n", |
| 256 | // Modulate |
| 257 | " fragColor = bitmapColor * fragColor.a;\n", |
| 258 | // Modulate with alpha 8 texture |
| 259 | " fragColor = bitmapColor * texture2D(sampler, outTexCoords).a;\n" |
| 260 | }; |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 261 | const char* gFS_Main_FragColor = |
| 262 | " gl_FragColor = fragColor;\n"; |
Romain Guy | a5aed0d | 2010-09-09 14:42:43 -0700 | [diff] [blame] | 263 | const char* gFS_Main_FragColor_Blend = |
| 264 | " gl_FragColor = blendFramebuffer(fragColor, gl_LastFragColor);\n"; |
Romain Guy | f607bdc | 2010-09-10 19:20:06 -0700 | [diff] [blame] | 265 | const char* gFS_Main_FragColor_Blend_Swap = |
| 266 | " gl_FragColor = blendFramebuffer(gl_LastFragColor, fragColor);\n"; |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 267 | const char* gFS_Main_ApplyColorOp[4] = { |
| 268 | // None |
| 269 | "", |
| 270 | // Matrix |
Romain Guy | db1938e | 2010-08-02 18:50:22 -0700 | [diff] [blame] | 271 | // TODO: Fix premultiplied alpha computations for color matrix |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 272 | " fragColor *= colorMatrix;\n" |
Romain Guy | db1938e | 2010-08-02 18:50:22 -0700 | [diff] [blame] | 273 | " fragColor += colorMatrixVector;\n" |
| 274 | " fragColor.rgb *= fragColor.a;\n", |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 275 | // Lighting |
Romain Guy | db1938e | 2010-08-02 18:50:22 -0700 | [diff] [blame] | 276 | " float lightingAlpha = fragColor.a;\n" |
| 277 | " fragColor = min(fragColor * lightingMul + (lightingAdd * lightingAlpha), lightingAlpha);\n" |
| 278 | " fragColor.a = lightingAlpha;\n", |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 279 | // PorterDuff |
| 280 | " fragColor = blendColors(colorBlend, fragColor);\n" |
| 281 | }; |
| 282 | const char* gFS_Footer = |
| 283 | "}\n\n"; |
| 284 | |
| 285 | /////////////////////////////////////////////////////////////////////////////// |
| 286 | // PorterDuff snippets |
| 287 | /////////////////////////////////////////////////////////////////////////////// |
| 288 | |
Romain Guy | 48daa54 | 2010-08-10 19:21:34 -0700 | [diff] [blame] | 289 | const char* gBlendOps[18] = { |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 290 | // Clear |
| 291 | "return vec4(0.0, 0.0, 0.0, 0.0);\n", |
| 292 | // Src |
| 293 | "return src;\n", |
| 294 | // Dst |
| 295 | "return dst;\n", |
| 296 | // SrcOver |
Romain Guy | 06f96e2 | 2010-07-30 19:18:16 -0700 | [diff] [blame] | 297 | "return src + dst * (1.0 - src.a);\n", |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 298 | // DstOver |
Romain Guy | 06f96e2 | 2010-07-30 19:18:16 -0700 | [diff] [blame] | 299 | "return dst + src * (1.0 - dst.a);\n", |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 300 | // SrcIn |
Romain Guy | 06f96e2 | 2010-07-30 19:18:16 -0700 | [diff] [blame] | 301 | "return src * dst.a;\n", |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 302 | // DstIn |
Romain Guy | 06f96e2 | 2010-07-30 19:18:16 -0700 | [diff] [blame] | 303 | "return dst * src.a;\n", |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 304 | // SrcOut |
Romain Guy | 06f96e2 | 2010-07-30 19:18:16 -0700 | [diff] [blame] | 305 | "return src * (1.0 - dst.a);\n", |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 306 | // DstOut |
Romain Guy | 06f96e2 | 2010-07-30 19:18:16 -0700 | [diff] [blame] | 307 | "return dst * (1.0 - src.a);\n", |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 308 | // SrcAtop |
| 309 | "return vec4(src.rgb * dst.a + (1.0 - src.a) * dst.rgb, dst.a);\n", |
| 310 | // DstAtop |
| 311 | "return vec4(dst.rgb * src.a + (1.0 - dst.a) * src.rgb, src.a);\n", |
| 312 | // Xor |
Romain Guy | 48daa54 | 2010-08-10 19:21:34 -0700 | [diff] [blame] | 313 | "return vec4(src.rgb * (1.0 - dst.a) + (1.0 - src.a) * dst.rgb, " |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 314 | "src.a + dst.a - 2.0 * src.a * dst.a);\n", |
Romain Guy | 48daa54 | 2010-08-10 19:21:34 -0700 | [diff] [blame] | 315 | // Add |
| 316 | "return min(src + dst, 1.0);\n", |
| 317 | // Multiply |
| 318 | "return src * dst;\n", |
| 319 | // Screen |
| 320 | "return src + dst - src * dst;\n", |
| 321 | // Overlay |
| 322 | "return clamp(vec4(mix(" |
| 323 | "2.0 * src.rgb * dst.rgb + src.rgb * (1.0 - dst.a) + dst.rgb * (1.0 - src.a), " |
| 324 | "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), " |
| 325 | "step(dst.a, 2.0 * dst.rgb)), " |
| 326 | "src.a + dst.a - src.a * dst.a), 0.0, 1.0);\n", |
| 327 | // Darken |
| 328 | "return vec4(src.rgb * (1.0 - dst.a) + (1.0 - src.a) * dst.rgb + " |
| 329 | "min(src.rgb * dst.a, dst.rgb * src.a), src.a + dst.a - src.a * dst.a);\n", |
| 330 | // Lighten |
| 331 | "return vec4(src.rgb * (1.0 - dst.a) + (1.0 - src.a) * dst.rgb + " |
| 332 | "max(src.rgb * dst.a, dst.rgb * src.a), src.a + dst.a - src.a * dst.a);\n", |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 333 | }; |
| 334 | |
| 335 | /////////////////////////////////////////////////////////////////////////////// |
| 336 | // Constructors/destructors |
| 337 | /////////////////////////////////////////////////////////////////////////////// |
| 338 | |
| 339 | ProgramCache::ProgramCache() { |
| 340 | } |
| 341 | |
| 342 | ProgramCache::~ProgramCache() { |
| 343 | clear(); |
| 344 | } |
| 345 | |
| 346 | /////////////////////////////////////////////////////////////////////////////// |
| 347 | // Cache management |
| 348 | /////////////////////////////////////////////////////////////////////////////// |
| 349 | |
| 350 | void ProgramCache::clear() { |
Romain Guy | 67f2795 | 2010-12-07 20:09:23 -0800 | [diff] [blame] | 351 | PROGRAM_LOGD("Clearing program cache"); |
| 352 | |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 353 | size_t count = mCache.size(); |
| 354 | for (size_t i = 0; i < count; i++) { |
| 355 | delete mCache.valueAt(i); |
| 356 | } |
| 357 | mCache.clear(); |
| 358 | } |
| 359 | |
| 360 | Program* ProgramCache::get(const ProgramDescription& description) { |
| 361 | programid key = description.key(); |
| 362 | ssize_t index = mCache.indexOfKey(key); |
| 363 | Program* program = NULL; |
| 364 | if (index < 0) { |
Romain Guy | ee916f1 | 2010-09-20 17:53:08 -0700 | [diff] [blame] | 365 | description.log("Could not find program"); |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 366 | program = generateProgram(description, key); |
| 367 | mCache.add(key, program); |
| 368 | } else { |
| 369 | program = mCache.valueAt(index); |
| 370 | } |
| 371 | return program; |
| 372 | } |
| 373 | |
| 374 | /////////////////////////////////////////////////////////////////////////////// |
| 375 | // Program generation |
| 376 | /////////////////////////////////////////////////////////////////////////////// |
| 377 | |
| 378 | Program* ProgramCache::generateProgram(const ProgramDescription& description, programid key) { |
| 379 | String8 vertexShader = generateVertexShader(description); |
| 380 | String8 fragmentShader = generateFragmentShader(description); |
| 381 | |
| 382 | Program* program = new Program(vertexShader.string(), fragmentShader.string()); |
| 383 | return program; |
| 384 | } |
| 385 | |
| 386 | String8 ProgramCache::generateVertexShader(const ProgramDescription& description) { |
| 387 | // Add attributes |
| 388 | String8 shader(gVS_Header_Attributes); |
Romain Guy | aa6c24c | 2011-04-28 18:40:04 -0700 | [diff] [blame] | 389 | if (description.hasTexture || description.hasExternalTexture) { |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 390 | shader.append(gVS_Header_Attributes_TexCoords); |
| 391 | } |
Chet Haase | 99585ad | 2011-05-02 15:00:16 -0700 | [diff] [blame] | 392 | if (description.isAA) { |
| 393 | shader.append(gVS_Header_Attributes_AAParameters); |
Chet Haase | 5b0200b | 2011-04-13 17:58:08 -0700 | [diff] [blame] | 394 | } |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 395 | // Uniforms |
| 396 | shader.append(gVS_Header_Uniforms); |
Romain Guy | 8f0095c | 2011-05-02 17:24:22 -0700 | [diff] [blame] | 397 | if (description.hasTextureTransform) { |
Romain Guy | aa6c24c | 2011-04-28 18:40:04 -0700 | [diff] [blame] | 398 | shader.append(gVS_Header_Uniforms_TextureTransform); |
| 399 | } |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 400 | if (description.hasGradient) { |
Romain Guy | ee916f1 | 2010-09-20 17:53:08 -0700 | [diff] [blame] | 401 | shader.append(gVS_Header_Uniforms_HasGradient[description.gradientType]); |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 402 | } |
Romain Guy | 889f8d1 | 2010-07-29 14:37:42 -0700 | [diff] [blame] | 403 | if (description.hasBitmap) { |
| 404 | shader.append(gVS_Header_Uniforms_HasBitmap); |
| 405 | } |
Romain Guy | ed6fcb0 | 2011-03-21 13:11:28 -0700 | [diff] [blame] | 406 | if (description.isPoint) { |
| 407 | shader.append(gVS_Header_Uniforms_IsPoint); |
| 408 | } |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 409 | // Varyings |
Romain Guy | aa6c24c | 2011-04-28 18:40:04 -0700 | [diff] [blame] | 410 | if (description.hasTexture || description.hasExternalTexture) { |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 411 | shader.append(gVS_Header_Varyings_HasTexture); |
| 412 | } |
Chet Haase | 99585ad | 2011-05-02 15:00:16 -0700 | [diff] [blame] | 413 | if (description.isAA) { |
| 414 | shader.append(gVS_Header_Varyings_IsAA); |
Chet Haase | 5b0200b | 2011-04-13 17:58:08 -0700 | [diff] [blame] | 415 | } |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 416 | if (description.hasGradient) { |
Romain Guy | ee916f1 | 2010-09-20 17:53:08 -0700 | [diff] [blame] | 417 | shader.append(gVS_Header_Varyings_HasGradient[description.gradientType]); |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 418 | } |
| 419 | if (description.hasBitmap) { |
Romain Guy | ed6fcb0 | 2011-03-21 13:11:28 -0700 | [diff] [blame] | 420 | shader.append(description.isPoint ? |
| 421 | gVS_Header_Varyings_PointHasBitmap : |
| 422 | gVS_Header_Varyings_HasBitmap); |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 423 | } |
| 424 | |
| 425 | // Begin the shader |
| 426 | shader.append(gVS_Main); { |
Romain Guy | 8f0095c | 2011-05-02 17:24:22 -0700 | [diff] [blame] | 427 | if (description.hasTextureTransform) { |
Romain Guy | aa6c24c | 2011-04-28 18:40:04 -0700 | [diff] [blame] | 428 | shader.append(gVS_Main_OutTransformedTexCoords); |
Romain Guy | 8f0095c | 2011-05-02 17:24:22 -0700 | [diff] [blame] | 429 | } else if (description.hasTexture || description.hasExternalTexture) { |
| 430 | shader.append(gVS_Main_OutTexCoords); |
Romain Guy | aa6c24c | 2011-04-28 18:40:04 -0700 | [diff] [blame] | 431 | } |
Chet Haase | 99585ad | 2011-05-02 15:00:16 -0700 | [diff] [blame] | 432 | if (description.isAA) { |
| 433 | shader.append(gVS_Main_AA); |
Chet Haase | 5b0200b | 2011-04-13 17:58:08 -0700 | [diff] [blame] | 434 | } |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 435 | if (description.hasGradient) { |
Romain Guy | ee916f1 | 2010-09-20 17:53:08 -0700 | [diff] [blame] | 436 | shader.append(gVS_Main_OutGradient[description.gradientType]); |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 437 | } |
Romain Guy | 889f8d1 | 2010-07-29 14:37:42 -0700 | [diff] [blame] | 438 | if (description.hasBitmap) { |
Romain Guy | ed6fcb0 | 2011-03-21 13:11:28 -0700 | [diff] [blame] | 439 | shader.append(description.isPoint ? |
| 440 | gVS_Main_OutPointBitmapTexCoords : |
| 441 | gVS_Main_OutBitmapTexCoords); |
| 442 | } |
| 443 | if (description.isPoint) { |
| 444 | shader.append(gVS_Main_PointSize); |
Romain Guy | 889f8d1 | 2010-07-29 14:37:42 -0700 | [diff] [blame] | 445 | } |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 446 | // Output transformed position |
| 447 | shader.append(gVS_Main_Position); |
| 448 | } |
| 449 | // End the shader |
| 450 | shader.append(gVS_Footer); |
| 451 | |
| 452 | PROGRAM_LOGD("*** Generated vertex shader:\n\n%s", shader.string()); |
| 453 | |
| 454 | return shader; |
| 455 | } |
| 456 | |
| 457 | String8 ProgramCache::generateFragmentShader(const ProgramDescription& description) { |
| 458 | // Set the default precision |
Romain Guy | a5aed0d | 2010-09-09 14:42:43 -0700 | [diff] [blame] | 459 | String8 shader; |
| 460 | |
Romain Guy | 707b2f7 | 2010-10-11 16:34:59 -0700 | [diff] [blame] | 461 | const bool blendFramebuffer = description.framebufferMode >= SkXfermode::kPlus_Mode; |
Romain Guy | a5aed0d | 2010-09-09 14:42:43 -0700 | [diff] [blame] | 462 | if (blendFramebuffer) { |
| 463 | shader.append(gFS_Header_Extension_FramebufferFetch); |
| 464 | } |
Romain Guy | aa6c24c | 2011-04-28 18:40:04 -0700 | [diff] [blame] | 465 | if (description.hasExternalTexture) { |
| 466 | shader.append(gFS_Header_Extension_ExternalTexture); |
| 467 | } |
Romain Guy | a5aed0d | 2010-09-09 14:42:43 -0700 | [diff] [blame] | 468 | |
| 469 | shader.append(gFS_Header); |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 470 | |
| 471 | // Varyings |
Romain Guy | aa6c24c | 2011-04-28 18:40:04 -0700 | [diff] [blame] | 472 | if (description.hasTexture || description.hasExternalTexture) { |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 473 | shader.append(gVS_Header_Varyings_HasTexture); |
| 474 | } |
Chet Haase | 99585ad | 2011-05-02 15:00:16 -0700 | [diff] [blame] | 475 | if (description.isAA) { |
| 476 | shader.append(gVS_Header_Varyings_IsAA); |
Chet Haase | 5b0200b | 2011-04-13 17:58:08 -0700 | [diff] [blame] | 477 | } |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 478 | if (description.hasGradient) { |
Romain Guy | ee916f1 | 2010-09-20 17:53:08 -0700 | [diff] [blame] | 479 | shader.append(gVS_Header_Varyings_HasGradient[description.gradientType]); |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 480 | } |
| 481 | if (description.hasBitmap) { |
Romain Guy | ed6fcb0 | 2011-03-21 13:11:28 -0700 | [diff] [blame] | 482 | shader.append(description.isPoint ? |
| 483 | gVS_Header_Varyings_PointHasBitmap : |
| 484 | gVS_Header_Varyings_HasBitmap); |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 485 | } |
| 486 | |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 487 | // Uniforms |
Romain Guy | 707b2f7 | 2010-10-11 16:34:59 -0700 | [diff] [blame] | 488 | int modulateOp = MODULATE_OP_NO_MODULATE; |
Romain Guy | aa6c24c | 2011-04-28 18:40:04 -0700 | [diff] [blame] | 489 | const bool singleColor = !description.hasTexture && !description.hasExternalTexture && |
Romain Guy | 707b2f7 | 2010-10-11 16:34:59 -0700 | [diff] [blame] | 490 | !description.hasGradient && !description.hasBitmap; |
| 491 | |
| 492 | if (description.modulate || singleColor) { |
| 493 | shader.append(gFS_Uniforms_Color); |
| 494 | if (!singleColor) modulateOp = MODULATE_OP_MODULATE; |
| 495 | } |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 496 | if (description.hasTexture) { |
| 497 | shader.append(gFS_Uniforms_TextureSampler); |
Romain Guy | 8f0095c | 2011-05-02 17:24:22 -0700 | [diff] [blame] | 498 | } else if (description.hasExternalTexture) { |
Romain Guy | aa6c24c | 2011-04-28 18:40:04 -0700 | [diff] [blame] | 499 | shader.append(gFS_Uniforms_ExternalTextureSampler); |
| 500 | } |
Chet Haase | 99585ad | 2011-05-02 15:00:16 -0700 | [diff] [blame] | 501 | if (description.isAA) { |
| 502 | shader.append(gFS_Uniforms_AA); |
Chet Haase | 5b0200b | 2011-04-13 17:58:08 -0700 | [diff] [blame] | 503 | } |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 504 | if (description.hasGradient) { |
Romain Guy | ee916f1 | 2010-09-20 17:53:08 -0700 | [diff] [blame] | 505 | shader.append(gFS_Uniforms_GradientSampler[description.gradientType]); |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 506 | } |
Romain Guy | ed6fcb0 | 2011-03-21 13:11:28 -0700 | [diff] [blame] | 507 | if (description.hasBitmap && description.isPoint) { |
| 508 | shader.append(gFS_Header_Uniforms_PointHasBitmap); |
| 509 | } |
Romain Guy | 707b2f7 | 2010-10-11 16:34:59 -0700 | [diff] [blame] | 510 | |
| 511 | // Optimization for common cases |
Chet Haase | 99585ad | 2011-05-02 15:00:16 -0700 | [diff] [blame] | 512 | if (!description.isAA && !blendFramebuffer && |
Chet Haase | 5b0200b | 2011-04-13 17:58:08 -0700 | [diff] [blame] | 513 | description.colorOp == ProgramDescription::kColorNone && !description.isPoint) { |
Romain Guy | 707b2f7 | 2010-10-11 16:34:59 -0700 | [diff] [blame] | 514 | bool fast = false; |
| 515 | |
| 516 | const bool noShader = !description.hasGradient && !description.hasBitmap; |
Romain Guy | aa6c24c | 2011-04-28 18:40:04 -0700 | [diff] [blame] | 517 | const bool singleTexture = (description.hasTexture || description.hasExternalTexture) && |
Romain Guy | 707b2f7 | 2010-10-11 16:34:59 -0700 | [diff] [blame] | 518 | !description.hasAlpha8Texture && noShader; |
| 519 | const bool singleA8Texture = description.hasTexture && |
| 520 | description.hasAlpha8Texture && noShader; |
Romain Guy | aa6c24c | 2011-04-28 18:40:04 -0700 | [diff] [blame] | 521 | const bool singleGradient = !description.hasTexture && !description.hasExternalTexture && |
Romain Guy | 707b2f7 | 2010-10-11 16:34:59 -0700 | [diff] [blame] | 522 | description.hasGradient && !description.hasBitmap && |
| 523 | description.gradientType == ProgramDescription::kGradientLinear; |
| 524 | |
| 525 | if (singleColor) { |
| 526 | shader.append(gFS_Fast_SingleColor); |
| 527 | fast = true; |
| 528 | } else if (singleTexture) { |
| 529 | if (!description.modulate) { |
| 530 | shader.append(gFS_Fast_SingleTexture); |
| 531 | } else { |
| 532 | shader.append(gFS_Fast_SingleModulateTexture); |
| 533 | } |
| 534 | fast = true; |
| 535 | } else if (singleA8Texture) { |
| 536 | if (!description.modulate) { |
| 537 | shader.append(gFS_Fast_SingleA8Texture); |
| 538 | } else { |
| 539 | shader.append(gFS_Fast_SingleModulateA8Texture); |
| 540 | } |
| 541 | fast = true; |
| 542 | } else if (singleGradient) { |
| 543 | if (!description.modulate) { |
| 544 | shader.append(gFS_Fast_SingleGradient); |
| 545 | } else { |
| 546 | shader.append(gFS_Fast_SingleModulateGradient); |
| 547 | } |
| 548 | fast = true; |
| 549 | } |
| 550 | |
| 551 | if (fast) { |
Romain Guy | c15008e | 2010-11-10 11:59:15 -0800 | [diff] [blame] | 552 | #if DEBUG_PROGRAMS |
Romain Guy | 707b2f7 | 2010-10-11 16:34:59 -0700 | [diff] [blame] | 553 | PROGRAM_LOGD("*** Fast case:\n"); |
| 554 | PROGRAM_LOGD("*** Generated fragment shader:\n\n"); |
| 555 | printLongString(shader); |
Romain Guy | c15008e | 2010-11-10 11:59:15 -0800 | [diff] [blame] | 556 | #endif |
Romain Guy | 707b2f7 | 2010-10-11 16:34:59 -0700 | [diff] [blame] | 557 | |
| 558 | return shader; |
| 559 | } |
| 560 | } |
| 561 | |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 562 | if (description.hasBitmap) { |
| 563 | shader.append(gFS_Uniforms_BitmapSampler); |
| 564 | } |
| 565 | shader.append(gFS_Uniforms_ColorOp[description.colorOp]); |
| 566 | |
| 567 | // Generate required functions |
| 568 | if (description.hasGradient && description.hasBitmap) { |
Romain Guy | 48daa54 | 2010-08-10 19:21:34 -0700 | [diff] [blame] | 569 | generateBlend(shader, "blendShaders", description.shadersMode); |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 570 | } |
| 571 | if (description.colorOp == ProgramDescription::kColorBlend) { |
Romain Guy | 48daa54 | 2010-08-10 19:21:34 -0700 | [diff] [blame] | 572 | generateBlend(shader, "blendColors", description.colorMode); |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 573 | } |
Romain Guy | a5aed0d | 2010-09-09 14:42:43 -0700 | [diff] [blame] | 574 | if (blendFramebuffer) { |
| 575 | generateBlend(shader, "blendFramebuffer", description.framebufferMode); |
| 576 | } |
Romain Guy | 889f8d1 | 2010-07-29 14:37:42 -0700 | [diff] [blame] | 577 | if (description.isBitmapNpot) { |
| 578 | generateTextureWrap(shader, description.bitmapWrapS, description.bitmapWrapT); |
| 579 | } |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 580 | |
| 581 | // Begin the shader |
| 582 | shader.append(gFS_Main); { |
| 583 | // Stores the result in fragColor directly |
Romain Guy | aa6c24c | 2011-04-28 18:40:04 -0700 | [diff] [blame] | 584 | if (description.hasTexture || description.hasExternalTexture) { |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 585 | if (description.hasAlpha8Texture) { |
Romain Guy | 707b2f7 | 2010-10-11 16:34:59 -0700 | [diff] [blame] | 586 | if (!description.hasGradient && !description.hasBitmap) { |
| 587 | shader.append(gFS_Main_FetchA8Texture[modulateOp]); |
| 588 | } |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 589 | } else { |
Romain Guy | 707b2f7 | 2010-10-11 16:34:59 -0700 | [diff] [blame] | 590 | shader.append(gFS_Main_FetchTexture[modulateOp]); |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 591 | } |
| 592 | } else { |
Romain Guy | 707b2f7 | 2010-10-11 16:34:59 -0700 | [diff] [blame] | 593 | if ((!description.hasGradient && !description.hasBitmap) || description.modulate) { |
| 594 | shader.append(gFS_Main_FetchColor); |
| 595 | } |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 596 | } |
Chet Haase | 99585ad | 2011-05-02 15:00:16 -0700 | [diff] [blame] | 597 | if (description.isAA) { |
| 598 | shader.append(gFS_Main_AccountForAA); |
Chet Haase | 5b0200b | 2011-04-13 17:58:08 -0700 | [diff] [blame] | 599 | } |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 600 | if (description.hasGradient) { |
Romain Guy | ee916f1 | 2010-09-20 17:53:08 -0700 | [diff] [blame] | 601 | shader.append(gFS_Main_FetchGradient[description.gradientType]); |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 602 | } |
| 603 | if (description.hasBitmap) { |
Romain Guy | ed6fcb0 | 2011-03-21 13:11:28 -0700 | [diff] [blame] | 604 | if (description.isPoint) { |
| 605 | shader.append(gFS_Main_PointBitmapTexCoords); |
| 606 | } |
Romain Guy | 889f8d1 | 2010-07-29 14:37:42 -0700 | [diff] [blame] | 607 | if (!description.isBitmapNpot) { |
| 608 | shader.append(gFS_Main_FetchBitmap); |
| 609 | } else { |
| 610 | shader.append(gFS_Main_FetchBitmapNpot); |
| 611 | } |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 612 | } |
Romain Guy | 740bf2b | 2011-04-26 15:33:10 -0700 | [diff] [blame] | 613 | bool applyModulate = false; |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 614 | // Case when we have two shaders set |
| 615 | if (description.hasGradient && description.hasBitmap) { |
Romain Guy | 707b2f7 | 2010-10-11 16:34:59 -0700 | [diff] [blame] | 616 | int op = description.hasAlpha8Texture ? MODULATE_OP_MODULATE_A8 : modulateOp; |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 617 | if (description.isBitmapFirst) { |
| 618 | shader.append(gFS_Main_BlendShadersBG); |
| 619 | } else { |
| 620 | shader.append(gFS_Main_BlendShadersGB); |
| 621 | } |
Romain Guy | 707b2f7 | 2010-10-11 16:34:59 -0700 | [diff] [blame] | 622 | shader.append(gFS_Main_BlendShaders_Modulate[op]); |
Romain Guy | 740bf2b | 2011-04-26 15:33:10 -0700 | [diff] [blame] | 623 | applyModulate = true; |
Romain Guy | 889f8d1 | 2010-07-29 14:37:42 -0700 | [diff] [blame] | 624 | } else { |
| 625 | if (description.hasGradient) { |
Romain Guy | 707b2f7 | 2010-10-11 16:34:59 -0700 | [diff] [blame] | 626 | int op = description.hasAlpha8Texture ? MODULATE_OP_MODULATE_A8 : modulateOp; |
| 627 | shader.append(gFS_Main_GradientShader_Modulate[op]); |
Romain Guy | 740bf2b | 2011-04-26 15:33:10 -0700 | [diff] [blame] | 628 | applyModulate = true; |
Romain Guy | 889f8d1 | 2010-07-29 14:37:42 -0700 | [diff] [blame] | 629 | } else if (description.hasBitmap) { |
Romain Guy | 707b2f7 | 2010-10-11 16:34:59 -0700 | [diff] [blame] | 630 | int op = description.hasAlpha8Texture ? MODULATE_OP_MODULATE_A8 : modulateOp; |
| 631 | shader.append(gFS_Main_BitmapShader_Modulate[op]); |
Romain Guy | 740bf2b | 2011-04-26 15:33:10 -0700 | [diff] [blame] | 632 | applyModulate = true; |
Romain Guy | 889f8d1 | 2010-07-29 14:37:42 -0700 | [diff] [blame] | 633 | } |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 634 | } |
Romain Guy | 740bf2b | 2011-04-26 15:33:10 -0700 | [diff] [blame] | 635 | if (description.modulate && applyModulate) { |
| 636 | shader.append(gFS_Main_ModulateColor); |
| 637 | } |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 638 | // Apply the color op if needed |
| 639 | shader.append(gFS_Main_ApplyColorOp[description.colorOp]); |
| 640 | // Output the fragment |
Romain Guy | a5aed0d | 2010-09-09 14:42:43 -0700 | [diff] [blame] | 641 | if (!blendFramebuffer) { |
| 642 | shader.append(gFS_Main_FragColor); |
| 643 | } else { |
Romain Guy | f607bdc | 2010-09-10 19:20:06 -0700 | [diff] [blame] | 644 | shader.append(!description.swapSrcDst ? |
| 645 | gFS_Main_FragColor_Blend : gFS_Main_FragColor_Blend_Swap); |
Romain Guy | a5aed0d | 2010-09-09 14:42:43 -0700 | [diff] [blame] | 646 | } |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 647 | } |
| 648 | // End the shader |
| 649 | shader.append(gFS_Footer); |
| 650 | |
Romain Guy | c15008e | 2010-11-10 11:59:15 -0800 | [diff] [blame] | 651 | #if DEBUG_PROGRAMS |
Romain Guy | db1938e | 2010-08-02 18:50:22 -0700 | [diff] [blame] | 652 | PROGRAM_LOGD("*** Generated fragment shader:\n\n"); |
| 653 | printLongString(shader); |
Romain Guy | c15008e | 2010-11-10 11:59:15 -0800 | [diff] [blame] | 654 | #endif |
Romain Guy | db1938e | 2010-08-02 18:50:22 -0700 | [diff] [blame] | 655 | |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 656 | return shader; |
| 657 | } |
| 658 | |
Romain Guy | 48daa54 | 2010-08-10 19:21:34 -0700 | [diff] [blame] | 659 | void ProgramCache::generateBlend(String8& shader, const char* name, SkXfermode::Mode mode) { |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 660 | shader.append("\nvec4 "); |
| 661 | shader.append(name); |
| 662 | shader.append("(vec4 src, vec4 dst) {\n"); |
| 663 | shader.append(" "); |
Romain Guy | 48daa54 | 2010-08-10 19:21:34 -0700 | [diff] [blame] | 664 | shader.append(gBlendOps[mode]); |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 665 | shader.append("}\n"); |
| 666 | } |
| 667 | |
Romain Guy | 889f8d1 | 2010-07-29 14:37:42 -0700 | [diff] [blame] | 668 | void ProgramCache::generateTextureWrap(String8& shader, GLenum wrapS, GLenum wrapT) { |
| 669 | shader.append("\nvec2 wrap(vec2 texCoords) {\n"); |
| 670 | if (wrapS == GL_MIRRORED_REPEAT) { |
| 671 | shader.append(" float xMod2 = mod(texCoords.x, 2.0);\n"); |
| 672 | shader.append(" if (xMod2 > 1.0) xMod2 = 2.0 - xMod2;\n"); |
| 673 | } |
| 674 | if (wrapT == GL_MIRRORED_REPEAT) { |
| 675 | shader.append(" float yMod2 = mod(texCoords.y, 2.0);\n"); |
| 676 | shader.append(" if (yMod2 > 1.0) yMod2 = 2.0 - yMod2;\n"); |
| 677 | } |
| 678 | shader.append(" return vec2("); |
| 679 | switch (wrapS) { |
Romain Guy | 61c8c9c | 2010-08-09 20:48:09 -0700 | [diff] [blame] | 680 | case GL_CLAMP_TO_EDGE: |
| 681 | shader.append("texCoords.x"); |
| 682 | break; |
Romain Guy | 889f8d1 | 2010-07-29 14:37:42 -0700 | [diff] [blame] | 683 | case GL_REPEAT: |
| 684 | shader.append("mod(texCoords.x, 1.0)"); |
| 685 | break; |
| 686 | case GL_MIRRORED_REPEAT: |
| 687 | shader.append("xMod2"); |
| 688 | break; |
| 689 | } |
| 690 | shader.append(", "); |
| 691 | switch (wrapT) { |
Romain Guy | 61c8c9c | 2010-08-09 20:48:09 -0700 | [diff] [blame] | 692 | case GL_CLAMP_TO_EDGE: |
| 693 | shader.append("texCoords.y"); |
| 694 | break; |
Romain Guy | 889f8d1 | 2010-07-29 14:37:42 -0700 | [diff] [blame] | 695 | case GL_REPEAT: |
| 696 | shader.append("mod(texCoords.y, 1.0)"); |
| 697 | break; |
| 698 | case GL_MIRRORED_REPEAT: |
| 699 | shader.append("yMod2"); |
| 700 | break; |
| 701 | } |
| 702 | shader.append(");\n"); |
| 703 | shader.append("}\n"); |
| 704 | } |
| 705 | |
Romain Guy | db1938e | 2010-08-02 18:50:22 -0700 | [diff] [blame] | 706 | void ProgramCache::printLongString(const String8& shader) const { |
| 707 | ssize_t index = 0; |
| 708 | ssize_t lastIndex = 0; |
| 709 | const char* str = shader.string(); |
| 710 | while ((index = shader.find("\n", index)) > -1) { |
| 711 | String8 line(str, index - lastIndex); |
| 712 | if (line.length() == 0) line.append("\n"); |
| 713 | PROGRAM_LOGD("%s", line.string()); |
| 714 | index++; |
| 715 | str += (index - lastIndex); |
| 716 | lastIndex = index; |
| 717 | } |
| 718 | } |
| 719 | |
Romain Guy | ac670c0 | 2010-07-27 17:39:27 -0700 | [diff] [blame] | 720 | }; // namespace uirenderer |
| 721 | }; // namespace android |