OLD | NEW |
1 /* | 1 /* |
2 * Copyright 2014 Google Inc. | 2 * Copyright 2014 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #include "SkColorCubeFilter.h" | 8 #include "SkColorCubeFilter.h" |
9 #include "SkColorPriv.h" | 9 #include "SkColorPriv.h" |
10 #include "SkOnce.h" | 10 #include "SkOnce.h" |
11 #include "SkOpts.h" | 11 #include "SkOpts.h" |
12 #include "SkReadBuffer.h" | 12 #include "SkReadBuffer.h" |
13 #include "SkUnPreMultiply.h" | 13 #include "SkUnPreMultiply.h" |
14 #include "SkWriteBuffer.h" | 14 #include "SkWriteBuffer.h" |
15 #if SK_SUPPORT_GPU | 15 #if SK_SUPPORT_GPU |
16 #include "GrContext.h" | 16 #include "GrContext.h" |
17 #include "GrCoordTransform.h" | 17 #include "GrCoordTransform.h" |
18 #include "GrInvariantOutput.h" | 18 #include "GrInvariantOutput.h" |
19 #include "GrTexturePriv.h" | 19 #include "GrTexturePriv.h" |
20 #include "SkGr.h" | 20 #include "SkGr.h" |
21 #include "gl/GrGLFragmentProcessor.h" | 21 #include "gl/GrGLFragmentProcessor.h" |
22 #include "gl/builders/GrGLProgramBuilder.h" | 22 #include "glsl/GrGLSLFragmentShaderBuilder.h" |
| 23 #include "glsl/GrGLSLProgramBuilder.h" |
23 #include "glsl/GrGLSLProgramDataManager.h" | 24 #include "glsl/GrGLSLProgramDataManager.h" |
24 #endif | 25 #endif |
25 | 26 |
26 /////////////////////////////////////////////////////////////////////////////// | 27 /////////////////////////////////////////////////////////////////////////////// |
27 namespace { | 28 namespace { |
28 | 29 |
29 int32_t SkNextColorCubeUniqueID() { | 30 int32_t SkNextColorCubeUniqueID() { |
30 static int32_t gColorCubeUniqueID; | 31 static int32_t gColorCubeUniqueID; |
31 // do a loop in case our global wraps around, as we never want to return a 0 | 32 // do a loop in case our global wraps around, as we never want to return a 0 |
32 int32_t genID; | 33 int32_t genID; |
(...skipping 204 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
237 } | 238 } |
238 | 239 |
239 GrColorCubeEffect::GLProcessor::~GLProcessor() { | 240 GrColorCubeEffect::GLProcessor::~GLProcessor() { |
240 } | 241 } |
241 | 242 |
242 void GrColorCubeEffect::GLProcessor::emitCode(EmitArgs& args) { | 243 void GrColorCubeEffect::GLProcessor::emitCode(EmitArgs& args) { |
243 if (nullptr == args.fInputColor) { | 244 if (nullptr == args.fInputColor) { |
244 args.fInputColor = "vec4(1)"; | 245 args.fInputColor = "vec4(1)"; |
245 } | 246 } |
246 | 247 |
247 fColorCubeSizeUni = args.fBuilder->addUniform(GrGLProgramBuilder::kFragment_
Visibility, | 248 fColorCubeSizeUni = args.fBuilder->addUniform(GrGLSLProgramBuilder::kFragmen
t_Visibility, |
248 kFloat_GrSLType, kDefault_GrSLPrecis
ion, | 249 kFloat_GrSLType, kDefault_GrSLPrecis
ion, |
249 "Size"); | 250 "Size"); |
250 const char* colorCubeSizeUni = args.fBuilder->getUniformCStr(fColorCubeSizeU
ni); | 251 const char* colorCubeSizeUni = args.fBuilder->getUniformCStr(fColorCubeSizeU
ni); |
251 fColorCubeInvSizeUni = args.fBuilder->addUniform(GrGLProgramBuilder::kFragme
nt_Visibility, | 252 fColorCubeInvSizeUni = args.fBuilder->addUniform(GrGLSLProgramBuilder::kFrag
ment_Visibility, |
252 kFloat_GrSLType, kDefault_GrSLPre
cision, | 253 kFloat_GrSLType, kDefault_GrSLPre
cision, |
253 "InvSize"); | 254 "InvSize"); |
254 const char* colorCubeInvSizeUni = args.fBuilder->getUniformCStr(fColorCubeIn
vSizeUni); | 255 const char* colorCubeInvSizeUni = args.fBuilder->getUniformCStr(fColorCubeIn
vSizeUni); |
255 | 256 |
256 const char* nonZeroAlpha = "nonZeroAlpha"; | 257 const char* nonZeroAlpha = "nonZeroAlpha"; |
257 const char* unPMColor = "unPMColor"; | 258 const char* unPMColor = "unPMColor"; |
258 const char* cubeIdx = "cubeIdx"; | 259 const char* cubeIdx = "cubeIdx"; |
259 const char* cCoords1 = "cCoords1"; | 260 const char* cCoords1 = "cCoords1"; |
260 const char* cCoords2 = "cCoords2"; | 261 const char* cCoords2 = "cCoords2"; |
261 | 262 |
262 // Note: if implemented using texture3D in OpenGL ES older than OpenGL ES 3.
0, | 263 // Note: if implemented using texture3D in OpenGL ES older than OpenGL ES 3.
0, |
263 // the shader might need "#extension GL_OES_texture_3D : enable". | 264 // the shader might need "#extension GL_OES_texture_3D : enable". |
264 | 265 |
265 GrGLFragmentBuilder* fsBuilder = args.fBuilder->getFragmentShaderBuilder(); | 266 GrGLSLFragmentBuilder* fsBuilder = args.fBuilder->getFragmentShaderBuilder()
; |
266 | 267 |
267 // Unpremultiply color | 268 // Unpremultiply color |
268 fsBuilder->codeAppendf("\tfloat %s = max(%s.a, 0.00001);\n", nonZeroAlpha, a
rgs.fInputColor); | 269 fsBuilder->codeAppendf("\tfloat %s = max(%s.a, 0.00001);\n", nonZeroAlpha, a
rgs.fInputColor); |
269 fsBuilder->codeAppendf("\tvec4 %s = vec4(%s.rgb / %s, %s);\n", | 270 fsBuilder->codeAppendf("\tvec4 %s = vec4(%s.rgb / %s, %s);\n", |
270 unPMColor, args.fInputColor, nonZeroAlpha, nonZeroAlp
ha); | 271 unPMColor, args.fInputColor, nonZeroAlpha, nonZeroAlp
ha); |
271 | 272 |
272 // Fit input color into the cube. | 273 // Fit input color into the cube. |
273 fsBuilder->codeAppendf( | 274 fsBuilder->codeAppendf( |
274 "vec3 %s = vec3(%s.rg * vec2((%s - 1.0) * %s) + vec2(0.5 * %s), %s.b * (
%s - 1.0));\n", | 275 "vec3 %s = vec3(%s.rg * vec2((%s - 1.0) * %s) + vec2(0.5 * %s), %s.b * (
%s - 1.0));\n", |
275 cubeIdx, unPMColor, colorCubeSizeUni, colorCubeInvSizeUni, colorCubeInvS
izeUni, | 276 cubeIdx, unPMColor, colorCubeSizeUni, colorCubeInvSizeUni, colorCubeInvS
izeUni, |
(...skipping 49 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
325 if (textureCube) { | 326 if (textureCube) { |
326 context->textureProvider()->assignUniqueKeyToTexture(key, textureCub
e); | 327 context->textureProvider()->assignUniqueKeyToTexture(key, textureCub
e); |
327 } else { | 328 } else { |
328 return nullptr; | 329 return nullptr; |
329 } | 330 } |
330 } | 331 } |
331 | 332 |
332 return GrColorCubeEffect::Create(textureCube); | 333 return GrColorCubeEffect::Create(textureCube); |
333 } | 334 } |
334 #endif | 335 #endif |
OLD | NEW |