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/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "GrPathRendererChain.h"
#include "GrContext.h"
#include "GrDefaultPathRenderer.h"
#include "GrGpu.h"
GrPathRendererChain::GrPathRendererChain(GrContext* context, UsageFlags flags)
: fInit(false)
, fOwner(context)
, fFlags(flags)
, fChain(fStorage.get(), kPreAllocCount) {
fInit = false;
}
GrPathRendererChain::~GrPathRendererChain() {
for (int i = 0; i < fChain.count(); ++i) {
fChain[i]->unref();
}
}
GrPathRenderer* GrPathRendererChain::addPathRenderer(GrPathRenderer* pr) {
fChain.push_back() = pr;
pr->ref();
return pr;
}
GrPathRenderer* GrPathRendererChain::getPathRenderer(const GrDrawTarget* target,
const GrPath& path,
GrPathFill fill) {
if (!fInit) {
this->init();
}
bool preferAA = target->isAntialiasState() &&
!target->getRenderTarget()->isMultisampled();
GrPathRenderer* nonAAPR = NULL;
for (int i = 0; i < fChain.count(); ++i) {
if (fChain[i]->canDrawPath(target, path, fill)) {
if (!preferAA || fChain[i]->supportsAA(target, path, fill)) {
return fChain[i];
} else {
nonAAPR = fChain[i];
}
}
}
return nonAAPR;
}
void GrPathRendererChain::init() {
GrAssert(!fInit);
GrGpu* gpu = fOwner->getGpu();
this->addPathRenderer(
new GrDefaultPathRenderer(gpu->supportsTwoSidedStencil(),
gpu->supportsStencilWrapOps()))->unref();
GrPathRenderer::AddPathRenderers(fOwner, fFlags, this);
fInit = true;
}
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