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Diffstat (limited to 'chromium/third_party/skia/src/gpu/gl/GrGLProgram.h')
-rw-r--r--chromium/third_party/skia/src/gpu/gl/GrGLProgram.h100
1 files changed, 48 insertions, 52 deletions
diff --git a/chromium/third_party/skia/src/gpu/gl/GrGLProgram.h b/chromium/third_party/skia/src/gpu/gl/GrGLProgram.h
index 8e2ae74aab9..73a32395a29 100644
--- a/chromium/third_party/skia/src/gpu/gl/GrGLProgram.h
+++ b/chromium/third_party/skia/src/gpu/gl/GrGLProgram.h
@@ -60,9 +60,9 @@ public:
/**
* Gets the GL program ID for this program.
*/
- GrGLuint programID() const { return fProgramID; }
+ GrGLuint programID() const { return fBuilderOutput.fProgramID; }
- bool hasVertexShader() const { return fHasVertexShader; }
+ bool hasVertexShader() const { return fBuilderOutput.fHasVertexShader; }
/**
* Some GL state that is relevant to programs is not stored per-program. In particular color
@@ -103,20 +103,50 @@ public:
fRenderTargetSize.fHeight = -1;
fRenderTargetOrigin = (GrSurfaceOrigin) -1;
}
+
+ /**
+ * Gets a matrix that goes from local coords to Skia's device coordinates.
+ */
template<int Size> void getGLMatrix(GrGLfloat* destMatrix) {
+ GrGLGetMatrix<Size>(destMatrix, fViewMatrix);
+ }
+
+ /**
+ * Gets a matrix that goes from local coordinates to GL normalized device coords.
+ */
+ template<int Size> void getRTAdjustedGLMatrix(GrGLfloat* destMatrix) {
SkMatrix combined;
if (kBottomLeft_GrSurfaceOrigin == fRenderTargetOrigin) {
combined.setAll(SkIntToScalar(2) / fRenderTargetSize.fWidth, 0, -SK_Scalar1,
0, -SkIntToScalar(2) / fRenderTargetSize.fHeight, SK_Scalar1,
- 0, 0, SkMatrix::I()[8]);
+ 0, 0, 1);
} else {
combined.setAll(SkIntToScalar(2) / fRenderTargetSize.fWidth, 0, -SK_Scalar1,
0, SkIntToScalar(2) / fRenderTargetSize.fHeight, -SK_Scalar1,
- 0, 0, SkMatrix::I()[8]);
+ 0, 0, 1);
}
- combined.setConcat(combined, fViewMatrix);
+ combined.preConcat(fViewMatrix);
GrGLGetMatrix<Size>(destMatrix, combined);
}
+
+ /**
+ * Gets a vec4 that adjusts the position from Skia device coords to GL's normalized device
+ * coords. Assuming the transformed position, pos, is a homogeneous vec3, the vec, v, is
+ * applied as such:
+ * pos.x = dot(v.xy, pos.xz)
+ * pos.y = dot(v.zq, pos.yz)
+ */
+ void getRTAdjustmentVec(GrGLfloat* destVec) {
+ destVec[0] = 2.f / fRenderTargetSize.fWidth;
+ destVec[1] = -1.f;
+ if (kBottomLeft_GrSurfaceOrigin == fRenderTargetOrigin) {
+ destVec[2] = -2.f / fRenderTargetSize.fHeight;
+ destVec[3] = 1.f;
+ } else {
+ destVec[2] = 2.f / fRenderTargetSize.fHeight;
+ destVec[3] = -1.f;
+ }
+ }
};
/**
@@ -134,38 +164,12 @@ public:
private:
typedef GrGLUniformManager::UniformHandle UniformHandle;
- // handles for uniforms (aside from per-effect samplers)
- struct UniformHandles {
- UniformHandle fViewMatrixUni;
- UniformHandle fColorUni;
- UniformHandle fCoverageUni;
-
- // We use the render target height to provide a y-down frag coord when specifying
- // origin_upper_left is not supported.
- UniformHandle fRTHeightUni;
+ GrGLProgram(GrGpuGL*,
+ const GrGLProgramDesc&,
+ GrGLUniformManager*,
+ const GrGLShaderBuilder::GenProgramOutput&);
- // Uniforms for computing texture coords to do the dst-copy lookup
- UniformHandle fDstCopyTopLeftUni;
- UniformHandle fDstCopyScaleUni;
- UniformHandle fDstCopySamplerUni;
- };
-
- GrGLProgram(GrGpuGL* gpu,
- const GrGLProgramDesc& desc,
- const GrEffectStage* colorStages[],
- const GrEffectStage* coverageStages[]);
-
- bool succeeded() const { return 0 != fProgramID; }
-
- /**
- * This is the heavy initialization routine for building a GLProgram. colorStages and
- * coverageStages correspond to the output of GrGLProgramDesc::Build().
- */
- bool genProgram(GrGLShaderBuilder* builder,
- const GrEffectStage* colorStages[],
- const GrEffectStage* coverageStages[]);
-
- // Sets the texture units for samplers
+ // Sets the texture units for samplers.
void initSamplerUniforms();
// Helper for setData(). Makes GL calls to specify the initial color when there is not
@@ -179,26 +183,18 @@ private:
// Helper for setData() that sets the view matrix and loads the render target height uniform
void setMatrixAndRenderTargetHeight(const GrDrawState&);
- // GL program ID
- GrGLuint fProgramID;
-
// these reflect the current values of uniforms (GL uniform values travel with program)
- MatrixState fMatrixState;
- GrColor fColor;
- GrColor fCoverage;
- int fDstCopyTexUnit;
-
- SkAutoTDelete<GrGLProgramEffects> fColorEffects;
- SkAutoTDelete<GrGLProgramEffects> fCoverageEffects;
+ MatrixState fMatrixState;
+ GrColor fColor;
+ GrColor fCoverage;
+ int fDstCopyTexUnit;
- GrGLProgramDesc fDesc;
- GrGpuGL* fGpu;
+ GrGLShaderBuilder::GenProgramOutput fBuilderOutput;
- GrGLUniformManager fUniformManager;
- UniformHandles fUniformHandles;
+ GrGLProgramDesc fDesc;
+ GrGpuGL* fGpu;
- bool fHasVertexShader;
- int fNumTexCoordSets;
+ SkAutoTUnref<GrGLUniformManager> fUniformManager;
typedef SkRefCnt INHERITED;
};