Move GrGLProgramDesc::Build to new cpp file.

Review URL: https://codereview.chromium.org/13097007

git-svn-id: http://skia.googlecode.com/svn/trunk@8414 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
bsalomon@google.com 2013-03-27 19:50:27 +00:00
parent db4462566a
commit 798c8c4fe6
5 changed files with 199 additions and 189 deletions

View File

@ -168,6 +168,7 @@
'<(skia_src_path)/gpu/gl/GrGLPath.h',
'<(skia_src_path)/gpu/gl/GrGLProgram.cpp',
'<(skia_src_path)/gpu/gl/GrGLProgram.h',
'<(skia_src_path)/gpu/gl/GrGLProgramDesc.cpp',
'<(skia_src_path)/gpu/gl/GrGLProgramDesc.h',
'<(skia_src_path)/gpu/gl/GrGLRenderTarget.cpp',
'<(skia_src_path)/gpu/gl/GrGLRenderTarget.h',

View File

@ -13,7 +13,6 @@
#include "GrGLEffect.h"
#include "GrGpuGL.h"
#include "GrGLShaderVar.h"
#include "GrBackendEffectFactory.h"
#include "SkTrace.h"
#include "SkXfermode.h"
@ -36,193 +35,6 @@ inline const char* declared_color_output_name() { return "fsColorOut"; }
inline const char* dual_source_output_name() { return "dualSourceOut"; }
}
void GrGLProgramDesc::Build(const GrDrawState& drawState,
bool isPoints,
GrDrawState::BlendOptFlags blendOpts,
GrBlendCoeff srcCoeff,
GrBlendCoeff dstCoeff,
const GrGpuGL* gpu,
GrGLProgramDesc* desc) {
// This should already have been caught
GrAssert(!(GrDrawState::kSkipDraw_BlendOptFlag & blendOpts));
bool skipCoverage = SkToBool(blendOpts & GrDrawState::kEmitTransBlack_BlendOptFlag);
bool skipColor = SkToBool(blendOpts & (GrDrawState::kEmitTransBlack_BlendOptFlag |
GrDrawState::kEmitCoverage_BlendOptFlag));
// The descriptor is used as a cache key. Thus when a field of the
// descriptor will not affect program generation (because of the attribute
// bindings in use or other descriptor field settings) it should be set
// to a canonical value to avoid duplicate programs with different keys.
// Must initialize all fields or cache will have false negatives!
desc->fAttribBindings = drawState.getAttribBindings();
desc->fEmitsPointSize = isPoints;
bool requiresAttributeColors =
!skipColor && SkToBool(desc->fAttribBindings & GrDrawState::kColor_AttribBindingsBit);
bool requiresAttributeCoverage =
!skipCoverage && SkToBool(desc->fAttribBindings & GrDrawState::kCoverage_AttribBindingsBit);
// fColorInput/fCoverageInput records how colors are specified for the program So we strip the
// bits from the bindings to avoid false negatives when searching for an existing program in the
// cache.
desc->fAttribBindings &=
~(GrDrawState::kColor_AttribBindingsBit | GrDrawState::kCoverage_AttribBindingsBit);
desc->fColorFilterXfermode = skipColor ?
SkXfermode::kDst_Mode :
drawState.getColorFilterMode();
// no reason to do edge aa or look at per-vertex coverage if coverage is ignored
if (skipCoverage) {
desc->fAttribBindings &= ~(GrDrawState::kCoverage_AttribBindingsBit);
}
bool colorIsTransBlack = SkToBool(blendOpts & GrDrawState::kEmitTransBlack_BlendOptFlag);
bool colorIsSolidWhite = (blendOpts & GrDrawState::kEmitCoverage_BlendOptFlag) ||
(!requiresAttributeColors && 0xffffffff == drawState.getColor());
if (colorIsTransBlack) {
desc->fColorInput = kTransBlack_ColorInput;
} else if (colorIsSolidWhite) {
desc->fColorInput = kSolidWhite_ColorInput;
} else if (GR_GL_NO_CONSTANT_ATTRIBUTES && !requiresAttributeColors) {
desc->fColorInput = kUniform_ColorInput;
} else {
desc->fColorInput = kAttribute_ColorInput;
}
bool covIsSolidWhite = !requiresAttributeCoverage && 0xffffffff == drawState.getCoverage();
if (skipCoverage) {
desc->fCoverageInput = kTransBlack_ColorInput;
} else if (covIsSolidWhite) {
desc->fCoverageInput = kSolidWhite_ColorInput;
} else if (GR_GL_NO_CONSTANT_ATTRIBUTES && !requiresAttributeCoverage) {
desc->fCoverageInput = kUniform_ColorInput;
} else {
desc->fCoverageInput = kAttribute_ColorInput;
}
int lastEnabledStage = -1;
for (int s = 0; s < GrDrawState::kNumStages; ++s) {
bool skip = s < drawState.getFirstCoverageStage() ? skipColor : skipCoverage;
if (!skip && drawState.isStageEnabled(s)) {
lastEnabledStage = s;
const GrEffectRef& effect = *drawState.getStage(s).getEffect();
const GrBackendEffectFactory& factory = effect->getFactory();
bool explicitLocalCoords = (drawState.getAttribBindings() &
GrDrawState::kLocalCoords_AttribBindingsBit);
GrDrawEffect drawEffect(drawState.getStage(s), explicitLocalCoords);
desc->fEffectKeys[s] = factory.glEffectKey(drawEffect, gpu->glCaps());
} else {
desc->fEffectKeys[s] = 0;
}
}
desc->fDualSrcOutput = kNone_DualSrcOutput;
// Currently the experimental GS will only work with triangle prims (and it doesn't do anything
// other than pass through values from the VS to the FS anyway).
#if GR_GL_EXPERIMENTAL_GS
#if 0
desc->fExperimentalGS = gpu->caps().geometryShaderSupport();
#else
desc->fExperimentalGS = false;
#endif
#endif
// We leave this set to kNumStages until we discover that the coverage/color distinction is
// material to the generated program. We do this to avoid distinct keys that generate equivalent
// programs.
desc->fFirstCoverageStage = GrDrawState::kNumStages;
// This tracks the actual first coverage stage.
int firstCoverageStage = GrDrawState::kNumStages;
desc->fDiscardIfZeroCoverage = false; // Enabled below if stenciling and there is coverage.
bool hasCoverage = false;
// If we're rendering coverage-as-color then its as though there are no coverage stages.
if (!drawState.isCoverageDrawing()) {
// We can have coverage either through a stage or coverage vertex attributes.
if (drawState.getFirstCoverageStage() <= lastEnabledStage) {
firstCoverageStage = drawState.getFirstCoverageStage();
hasCoverage = true;
} else {
hasCoverage = requiresAttributeCoverage;
}
}
if (hasCoverage) {
// color filter is applied between color/coverage computation
if (SkXfermode::kDst_Mode != desc->fColorFilterXfermode) {
desc->fFirstCoverageStage = firstCoverageStage;
}
// If we're stenciling then we want to discard samples that have zero coverage
if (drawState.getStencil().doesWrite()) {
desc->fDiscardIfZeroCoverage = true;
desc->fFirstCoverageStage = firstCoverageStage;
}
if (gpu->caps()->dualSourceBlendingSupport() &&
!(blendOpts & (GrDrawState::kEmitCoverage_BlendOptFlag |
GrDrawState::kCoverageAsAlpha_BlendOptFlag))) {
if (kZero_GrBlendCoeff == dstCoeff) {
// write the coverage value to second color
desc->fDualSrcOutput = kCoverage_DualSrcOutput;
desc->fFirstCoverageStage = firstCoverageStage;
} else if (kSA_GrBlendCoeff == dstCoeff) {
// SA dst coeff becomes 1-(1-SA)*coverage when dst is partially covered.
desc->fDualSrcOutput = kCoverageISA_DualSrcOutput;
desc->fFirstCoverageStage = firstCoverageStage;
} else if (kSC_GrBlendCoeff == dstCoeff) {
// SA dst coeff becomes 1-(1-SA)*coverage when dst is partially covered.
desc->fDualSrcOutput = kCoverageISC_DualSrcOutput;
desc->fFirstCoverageStage = firstCoverageStage;
}
}
}
desc->fPositionAttributeIndex = drawState.getAttribIndex(GrDrawState::kPosition_AttribIndex);
if (requiresAttributeColors) {
desc->fColorAttributeIndex = drawState.getAttribIndex(GrDrawState::kColor_AttribIndex);
} else {
desc->fColorAttributeIndex = GrDrawState::kColorOverrideAttribIndexValue;
}
if (requiresAttributeCoverage) {
desc->fCoverageAttributeIndex = drawState.getAttribIndex(GrDrawState::kCoverage_AttribIndex);
} else {
desc->fCoverageAttributeIndex = GrDrawState::kCoverageOverrideAttribIndexValue;
}
if (desc->fAttribBindings & GrDrawState::kLocalCoords_AttribBindingsBit) {
desc->fLocalCoordsAttributeIndex = drawState.getAttribIndex(GrDrawState::kLocalCoords_AttribIndex);
}
#if GR_DEBUG
// Verify valid vertex attribute state. These assertions should probably be done somewhere
// higher up the callstack
const GrVertexAttrib* vertexAttribs = drawState.getVertexAttribs();
GrAssert(desc->fPositionAttributeIndex < GrDrawState::kVertexAttribCnt);
GrAssert(GrGLAttribTypeToLayout(vertexAttribs[desc->fPositionAttributeIndex].fType).fCount == 2);
if (requiresAttributeColors) {
GrAssert(desc->fColorAttributeIndex < GrDrawState::kVertexAttribCnt);
GrAssert(GrGLAttribTypeToLayout(vertexAttribs[desc->fColorAttributeIndex].fType).fCount == 4);
}
if (requiresAttributeCoverage) {
GrAssert(desc->fCoverageAttributeIndex < GrDrawState::kVertexAttribCnt);
GrAssert(GrGLAttribTypeToLayout(vertexAttribs[desc->fCoverageAttributeIndex].fType).fCount == 4);
}
if (desc->fAttribBindings & GrDrawState::kLocalCoords_AttribBindingsBit) {
GrAssert(desc->fLocalCoordsAttributeIndex < GrDrawState::kVertexAttribCnt);
GrAssert(GrGLAttribTypeToLayout(vertexAttribs[desc->fLocalCoordsAttributeIndex].fType).fCount == 2);
}
#endif
}
GrGLProgram* GrGLProgram::Create(const GrGLContext& gl,
const GrGLProgramDesc& desc,
const GrEffectStage* stages[]) {

View File

@ -22,7 +22,6 @@
class GrBinHashKeyBuilder;
class GrGLEffect;
class GrGLShaderBuilder;
class SkMWCRandom;
/**
* This class manages a GPU program and records per-program information.

View File

@ -0,0 +1,197 @@
/*
* Copyright 2013 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "GrGLProgramDesc.h"
#include "GrBackendEffectFactory.h"
#include "GrDrawEffect.h"
#include "GrEffect.h"
#include "GrGpuGL.h"
void GrGLProgramDesc::Build(const GrDrawState& drawState,
bool isPoints,
GrDrawState::BlendOptFlags blendOpts,
GrBlendCoeff srcCoeff,
GrBlendCoeff dstCoeff,
const GrGpuGL* gpu,
GrGLProgramDesc* desc) {
// This should already have been caught
GrAssert(!(GrDrawState::kSkipDraw_BlendOptFlag & blendOpts));
bool skipCoverage = SkToBool(blendOpts & GrDrawState::kEmitTransBlack_BlendOptFlag);
bool skipColor = SkToBool(blendOpts & (GrDrawState::kEmitTransBlack_BlendOptFlag |
GrDrawState::kEmitCoverage_BlendOptFlag));
// The descriptor is used as a cache key. Thus when a field of the
// descriptor will not affect program generation (because of the attribute
// bindings in use or other descriptor field settings) it should be set
// to a canonical value to avoid duplicate programs with different keys.
// Must initialize all fields or cache will have false negatives!
desc->fAttribBindings = drawState.getAttribBindings();
desc->fEmitsPointSize = isPoints;
bool requiresAttributeColors =
!skipColor && SkToBool(desc->fAttribBindings & GrDrawState::kColor_AttribBindingsBit);
bool requiresAttributeCoverage =
!skipCoverage && SkToBool(desc->fAttribBindings & GrDrawState::kCoverage_AttribBindingsBit);
// fColorInput/fCoverageInput records how colors are specified for the program so we strip the
// bits from the bindings to avoid false negatives when searching for an existing program in the
// cache.
desc->fAttribBindings &=
~(GrDrawState::kColor_AttribBindingsBit | GrDrawState::kCoverage_AttribBindingsBit);
desc->fColorFilterXfermode = skipColor ? SkXfermode::kDst_Mode : drawState.getColorFilterMode();
// no reason to do edge aa or look at per-vertex coverage if coverage is ignored
if (skipCoverage) {
desc->fAttribBindings &= ~(GrDrawState::kCoverage_AttribBindingsBit);
}
bool colorIsTransBlack = SkToBool(blendOpts & GrDrawState::kEmitTransBlack_BlendOptFlag);
bool colorIsSolidWhite = (blendOpts & GrDrawState::kEmitCoverage_BlendOptFlag) ||
(!requiresAttributeColors && 0xffffffff == drawState.getColor());
if (colorIsTransBlack) {
desc->fColorInput = kTransBlack_ColorInput;
} else if (colorIsSolidWhite) {
desc->fColorInput = kSolidWhite_ColorInput;
} else if (GR_GL_NO_CONSTANT_ATTRIBUTES && !requiresAttributeColors) {
desc->fColorInput = kUniform_ColorInput;
} else {
desc->fColorInput = kAttribute_ColorInput;
}
bool covIsSolidWhite = !requiresAttributeCoverage && 0xffffffff == drawState.getCoverage();
if (skipCoverage) {
desc->fCoverageInput = kTransBlack_ColorInput;
} else if (covIsSolidWhite) {
desc->fCoverageInput = kSolidWhite_ColorInput;
} else if (GR_GL_NO_CONSTANT_ATTRIBUTES && !requiresAttributeCoverage) {
desc->fCoverageInput = kUniform_ColorInput;
} else {
desc->fCoverageInput = kAttribute_ColorInput;
}
int lastEnabledStage = -1;
for (int s = 0; s < GrDrawState::kNumStages; ++s) {
bool skip = s < drawState.getFirstCoverageStage() ? skipColor : skipCoverage;
if (!skip && drawState.isStageEnabled(s)) {
lastEnabledStage = s;
const GrEffectRef& effect = *drawState.getStage(s).getEffect();
const GrBackendEffectFactory& factory = effect->getFactory();
bool explicitLocalCoords = (drawState.getAttribBindings() &
GrDrawState::kLocalCoords_AttribBindingsBit);
GrDrawEffect drawEffect(drawState.getStage(s), explicitLocalCoords);
desc->fEffectKeys[s] = factory.glEffectKey(drawEffect, gpu->glCaps());
} else {
desc->fEffectKeys[s] = 0;
}
}
desc->fDualSrcOutput = kNone_DualSrcOutput;
// Currently the experimental GS will only work with triangle prims (and it doesn't do anything
// other than pass through values from the VS to the FS anyway).
#if GR_GL_EXPERIMENTAL_GS
#if 0
desc->fExperimentalGS = gpu->caps().geometryShaderSupport();
#else
desc->fExperimentalGS = false;
#endif
#endif
// We leave this set to kNumStages until we discover that the coverage/color distinction is
// material to the generated program. We do this to avoid distinct keys that generate equivalent
// programs.
desc->fFirstCoverageStage = GrDrawState::kNumStages;
// This tracks the actual first coverage stage.
int firstCoverageStage = GrDrawState::kNumStages;
desc->fDiscardIfZeroCoverage = false; // Enabled below if stenciling and there is coverage.
bool hasCoverage = false;
// If we're rendering coverage-as-color then it's as though there are no coverage stages.
if (!drawState.isCoverageDrawing()) {
// We can have coverage either through a stage or coverage vertex attributes.
if (drawState.getFirstCoverageStage() <= lastEnabledStage) {
firstCoverageStage = drawState.getFirstCoverageStage();
hasCoverage = true;
} else {
hasCoverage = requiresAttributeCoverage;
}
}
if (hasCoverage) {
// color filter is applied between color/coverage computation
if (SkXfermode::kDst_Mode != desc->fColorFilterXfermode) {
desc->fFirstCoverageStage = firstCoverageStage;
}
// If we're stenciling then we want to discard samples that have zero coverage
if (drawState.getStencil().doesWrite()) {
desc->fDiscardIfZeroCoverage = true;
desc->fFirstCoverageStage = firstCoverageStage;
}
if (gpu->caps()->dualSourceBlendingSupport() &&
!(blendOpts & (GrDrawState::kEmitCoverage_BlendOptFlag |
GrDrawState::kCoverageAsAlpha_BlendOptFlag))) {
if (kZero_GrBlendCoeff == dstCoeff) {
// write the coverage value to second color
desc->fDualSrcOutput = kCoverage_DualSrcOutput;
desc->fFirstCoverageStage = firstCoverageStage;
} else if (kSA_GrBlendCoeff == dstCoeff) {
// SA dst coeff becomes 1-(1-SA)*coverage when dst is partially covered.
desc->fDualSrcOutput = kCoverageISA_DualSrcOutput;
desc->fFirstCoverageStage = firstCoverageStage;
} else if (kSC_GrBlendCoeff == dstCoeff) {
// SA dst coeff becomes 1-(1-SA)*coverage when dst is partially covered.
desc->fDualSrcOutput = kCoverageISC_DualSrcOutput;
desc->fFirstCoverageStage = firstCoverageStage;
}
}
}
desc->fPositionAttributeIndex = drawState.getAttribIndex(GrDrawState::kPosition_AttribIndex);
if (requiresAttributeColors) {
desc->fColorAttributeIndex = drawState.getAttribIndex(GrDrawState::kColor_AttribIndex);
} else {
desc->fColorAttributeIndex = GrDrawState::kColorOverrideAttribIndexValue;
}
if (requiresAttributeCoverage) {
desc->fCoverageAttributeIndex = drawState.getAttribIndex(GrDrawState::kCoverage_AttribIndex);
} else {
desc->fCoverageAttributeIndex = GrDrawState::kCoverageOverrideAttribIndexValue;
}
if (desc->fAttribBindings & GrDrawState::kLocalCoords_AttribBindingsBit) {
desc->fLocalCoordsAttributeIndex = drawState.getAttribIndex(GrDrawState::kLocalCoords_AttribIndex);
}
#if GR_DEBUG
// Verify valid vertex attribute state. These assertions should probably be done somewhere
// higher up the callstack
const GrVertexAttrib* vertexAttribs = drawState.getVertexAttribs();
GrAssert(desc->fPositionAttributeIndex < GrDrawState::kVertexAttribCnt);
GrAssert(GrGLAttribTypeToLayout(vertexAttribs[desc->fPositionAttributeIndex].fType).fCount == 2);
if (requiresAttributeColors) {
GrAssert(desc->fColorAttributeIndex < GrDrawState::kVertexAttribCnt);
GrAssert(GrGLAttribTypeToLayout(vertexAttribs[desc->fColorAttributeIndex].fType).fCount == 4);
}
if (requiresAttributeCoverage) {
GrAssert(desc->fCoverageAttributeIndex < GrDrawState::kVertexAttribCnt);
GrAssert(GrGLAttribTypeToLayout(vertexAttribs[desc->fCoverageAttributeIndex].fType).fCount == 4);
}
if (desc->fAttribBindings & GrDrawState::kLocalCoords_AttribBindingsBit) {
GrAssert(desc->fLocalCoordsAttributeIndex < GrDrawState::kVertexAttribCnt);
GrAssert(GrGLAttribTypeToLayout(vertexAttribs[desc->fLocalCoordsAttributeIndex].fType).fCount == 2);
}
#endif
}

View File

@ -9,6 +9,7 @@
#define GrGLProgramDesc_DEFINED
#include "GrGLEffect.h"
#include "GrDrawState.h"
class GrGpuGL;