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/*
* 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 "GrPathProcessor.h"
#include "gl/GrGLPathProcessor.h"
#include "gl/GrGLGpu.h"
#include "glsl/GrGLSLCaps.h"
GrPathProcessor::GrPathProcessor(GrColor color,
const SkMatrix& viewMatrix,
const SkMatrix& localMatrix)
: INHERITED(true)
, fColor(color)
, fViewMatrix(viewMatrix)
, fLocalMatrix(localMatrix) {
this->initClassID<GrPathProcessor>();
}
void GrPathProcessor::getInvariantOutputColor(GrInitInvariantOutput* out) const {
out->setKnownFourComponents(fColor);
}
void GrPathProcessor::getInvariantOutputCoverage(GrInitInvariantOutput* out) const {
out->setKnownSingleComponent(0xff);
}
void GrPathProcessor::initBatchTracker(GrBatchTracker* bt, const GrPipelineInfo& init) const {
PathBatchTracker* local = bt->cast<PathBatchTracker>();
if (!init.readsColor()) {
local->fInputColorType = kIgnored_GrGPInput;
local->fColor = GrColor_ILLEGAL;
} else {
local->fInputColorType = kUniform_GrGPInput;
if (!init.getOverrideColorIfSet(&local->fColor)) {
local->fColor = this->color();
}
}
local->fInputCoverageType = init.readsCoverage() ? kAllOnes_GrGPInput : kIgnored_GrGPInput;
local->fUsesLocalCoords = init.readsLocalCoords();
}
bool GrPathProcessor::canMakeEqual(const GrBatchTracker& m,
const GrPrimitiveProcessor& that,
const GrBatchTracker& t) const {
if (this->classID() != that.classID() || !this->hasSameTextureAccesses(that)) {
return false;
}
const GrPathProcessor& other = that.cast<GrPathProcessor>();
if (!this->viewMatrix().cheapEqualTo(other.viewMatrix())) {
return false;
}
const PathBatchTracker& mine = m.cast<PathBatchTracker>();
const PathBatchTracker& theirs = t.cast<PathBatchTracker>();
if (mine.fColor != theirs.fColor) {
return false;
}
if (mine.fUsesLocalCoords != theirs.fUsesLocalCoords) {
return false;
}
if (mine.fUsesLocalCoords && !this->localMatrix().cheapEqualTo(other.localMatrix())) {
return false;
}
return true;
}
void GrPathProcessor::getGLProcessorKey(const GrBatchTracker& bt,
const GrGLSLCaps& caps,
GrProcessorKeyBuilder* b) const {
GrGLPathProcessor::GenKey(*this, bt, caps, b);
}
GrGLPrimitiveProcessor* GrPathProcessor::createGLInstance(const GrBatchTracker& bt,
const GrGLSLCaps& caps) const {
SkASSERT(caps.pathRenderingSupport());
return SkNEW_ARGS(GrGLPathProcessor, (*this, bt));
}
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