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| 1 /* | 1 /* |
| 2 * Copyright 2013 Google Inc. | 2 * Copyright 2013 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 "GrBitmapTextGeoProc.h" | 8 #include "GrBitmapTextGeoProc.h" |
| 9 #include "GrInvariantOutput.h" | 9 #include "GrInvariantOutput.h" |
| 10 #include "GrTexture.h" | 10 #include "GrTexture.h" |
| 11 #include "gl/GrGLFragmentProcessor.h" | 11 #include "gl/GrGLFragmentProcessor.h" |
| 12 #include "gl/GrGLTexture.h" | 12 #include "gl/GrGLTexture.h" |
| 13 #include "gl/GrGLGeometryProcessor.h" | 13 #include "gl/GrGLGeometryProcessor.h" |
| 14 #include "gl/builders/GrGLProgramBuilder.h" | 14 #include "gl/builders/GrGLProgramBuilder.h" |
| 15 #include "glsl/GrGLSLProgramDataManager.h" | 15 #include "glsl/GrGLSLProgramDataManager.h" |
| 16 | 16 |
| 17 class GrGLBitmapTextGeoProc : public GrGLGeometryProcessor { | 17 class GrGLBitmapTextGeoProc : public GrGLGeometryProcessor { |
| 18 public: | 18 public: |
| 19 GrGLBitmapTextGeoProc() : fColor(GrColor_ILLEGAL) {} | 19 GrGLBitmapTextGeoProc() : fColor(GrColor_ILLEGAL) {} |
| 20 | 20 |
| 21 void onEmitCode(EmitArgs& args, GrGPArgs* gpArgs) override { | 21 void onEmitCode(EmitArgs& args, GrGPArgs* gpArgs) override { |
| 22 const GrBitmapTextGeoProc& cte = args.fGP.cast<GrBitmapTextGeoProc>(); | 22 const GrBitmapTextGeoProc& cte = args.fGP.cast<GrBitmapTextGeoProc>(); |
| 23 | 23 |
| 24 GrGLGPBuilder* pb = args.fPB; | 24 GrGLSLGPBuilder* pb = args.fPB; |
| 25 GrGLVertexBuilder* vsBuilder = pb->getVertexShaderBuilder(); | 25 GrGLVertexBuilder* vsBuilder = pb->getVertexShaderBuilder(); |
| 26 | 26 |
| 27 // emit attributes | 27 // emit attributes |
| 28 vsBuilder->emitAttributes(cte); | 28 vsBuilder->emitAttributes(cte); |
| 29 | 29 |
| 30 // compute numbers to be hardcoded to convert texture coordinates from i
nt to float | 30 // compute numbers to be hardcoded to convert texture coordinates from i
nt to float |
| 31 SkASSERT(cte.numTextures() == 1); | 31 SkASSERT(cte.numTextures() == 1); |
| 32 GrTexture* atlas = cte.textureAccess(0).getTexture(); | 32 GrTexture* atlas = cte.textureAccess(0).getTexture(); |
| 33 SkASSERT(atlas && SkIsPow2(atlas->width()) && SkIsPow2(atlas->height()))
; | 33 SkASSERT(atlas && SkIsPow2(atlas->width()) && SkIsPow2(atlas->height()))
; |
| 34 SkScalar recipWidth = 1.0f / atlas->width(); | 34 SkScalar recipWidth = 1.0f / atlas->width(); |
| 35 SkScalar recipHeight = 1.0f / atlas->height(); | 35 SkScalar recipHeight = 1.0f / atlas->height(); |
| 36 | 36 |
| 37 GrGLVertToFrag v(kVec2f_GrSLType); | 37 GrGLSLVertToFrag v(kVec2f_GrSLType); |
| 38 pb->addVarying("TextureCoords", &v); | 38 pb->addVarying("TextureCoords", &v); |
| 39 vsBuilder->codeAppendf("%s = vec2(%.*f, %.*f) * %s;", v.vsOut(), | 39 vsBuilder->codeAppendf("%s = vec2(%.*f, %.*f) * %s;", v.vsOut(), |
| 40 GR_SIGNIFICANT_POW2_DECIMAL_DIG, recipWidth, | 40 GR_SIGNIFICANT_POW2_DECIMAL_DIG, recipWidth, |
| 41 GR_SIGNIFICANT_POW2_DECIMAL_DIG, recipHeight, | 41 GR_SIGNIFICANT_POW2_DECIMAL_DIG, recipHeight, |
| 42 cte.inTextureCoords()->fName); | 42 cte.inTextureCoords()->fName); |
| 43 | 43 |
| 44 // Setup pass through color | 44 // Setup pass through color |
| 45 if (!cte.colorIgnored()) { | 45 if (!cte.colorIgnored()) { |
| 46 if (cte.hasVertexColor()) { | 46 if (cte.hasVertexColor()) { |
| 47 pb->addPassThroughAttribute(cte.inColor(), args.fOutputColor); | 47 pb->addPassThroughAttribute(cte.inColor(), args.fOutputColor); |
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| 183 break; | 183 break; |
| 184 case 2: | 184 case 2: |
| 185 format = kARGB_GrMaskFormat; | 185 format = kARGB_GrMaskFormat; |
| 186 break; | 186 break; |
| 187 } | 187 } |
| 188 | 188 |
| 189 return GrBitmapTextGeoProc::Create(GrRandomColor(d->fRandom), d->fTextures[t
exIdx], params, | 189 return GrBitmapTextGeoProc::Create(GrRandomColor(d->fRandom), d->fTextures[t
exIdx], params, |
| 190 format, GrTest::TestMatrix(d->fRandom), | 190 format, GrTest::TestMatrix(d->fRandom), |
| 191 d->fRandom->nextBool()); | 191 d->fRandom->nextBool()); |
| 192 } | 192 } |
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