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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 "GrRenderTarget.h"
#include "GrContext.h"
#include "GrGpu.h"
#include "GrStencilBuffer.h"
SK_DEFINE_INST_COUNT(GrRenderTarget)
bool GrRenderTarget::readPixels(int left, int top, int width, int height,
GrPixelConfig config,
void* buffer,
size_t rowBytes,
uint32_t pixelOpsFlags) {
// go through context so that all necessary flushing occurs
GrContext* context = this->getContext();
if (NULL == context) {
return false;
}
return context->readRenderTargetPixels(this,
left, top, width, height,
config, buffer, rowBytes,
pixelOpsFlags);
}
void GrRenderTarget::writePixels(int left, int top, int width, int height,
GrPixelConfig config,
const void* buffer,
size_t rowBytes,
uint32_t pixelOpsFlags) {
// go through context so that all necessary flushing occurs
GrContext* context = this->getContext();
if (NULL == context) {
return;
}
context->writeRenderTargetPixels(this,
left, top, width, height,
config, buffer, rowBytes,
pixelOpsFlags);
}
void GrRenderTarget::resolve() {
// go through context so that all necessary flushing occurs
GrContext* context = this->getContext();
if (NULL == context) {
return;
}
context->resolveRenderTarget(this);
}
size_t GrRenderTarget::sizeInBytes() const {
int colorBits;
if (kUnknown_GrPixelConfig == fDesc.fConfig) {
colorBits = 32; // don't know, make a guess
} else {
colorBits = GrBytesPerPixel(fDesc.fConfig);
}
uint64_t size = fDesc.fWidth;
size *= fDesc.fHeight;
size *= colorBits;
size *= GrMax(1, fDesc.fSampleCnt);
return (size_t)(size / 8);
}
void GrRenderTarget::flagAsNeedingResolve(const GrIRect* rect) {
if (kCanResolve_ResolveType == getResolveType()) {
if (NULL != rect) {
fResolveRect.join(*rect);
if (!fResolveRect.intersect(0, 0, this->width(), this->height())) {
fResolveRect.setEmpty();
}
} else {
fResolveRect.setLTRB(0, 0, this->width(), this->height());
}
}
}
void GrRenderTarget::overrideResolveRect(const GrIRect rect) {
fResolveRect = rect;
if (fResolveRect.isEmpty()) {
fResolveRect.setLargestInverted();
} else {
if (!fResolveRect.intersect(0, 0, this->width(), this->height())) {
fResolveRect.setLargestInverted();
}
}
}
void GrRenderTarget::setStencilBuffer(GrStencilBuffer* stencilBuffer) {
if (stencilBuffer == fStencilBuffer) {
return;
}
if (NULL != fStencilBuffer) {
fStencilBuffer->unref();
GrContext* context = this->getContext();
if (NULL != context) {
context->purgeCache();
}
if (NULL != context) {
context->purgeCache();
}
}
fStencilBuffer = stencilBuffer;
if (NULL != fStencilBuffer) {
fStencilBuffer->ref();
}
}
void GrRenderTarget::onRelease() {
this->setStencilBuffer(NULL);
INHERITED::onRelease();
}
void GrRenderTarget::onAbandon() {
this->setStencilBuffer(NULL);
INHERITED::onAbandon();
}
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