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