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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 "GrGLRenderTarget.h"
#include "GrGLGpu.h"
void GrGLFBO::release(const GrGLInterface* gl) {
SkASSERT(gl);
if (this->isValid()) {
GR_GL_CALL(gl, DeleteFramebuffers(1, &fID));
fIsValid = false;
}
}
void GrGLFBO::abandon() { fIsValid = false; }
//////////////////////////////////////////////////////////////////////////////
#define GLGPU static_cast<GrGLGpu*>(this->getGpu())
#define GL_CALL(X) GR_GL_CALL(GLGPU->glInterface(), X)
// Because this class is virtually derived from GrSurface we must explicitly call its constructor.
GrGLRenderTarget::GrGLRenderTarget(GrGLGpu* gpu, const GrSurfaceDesc& desc, const IDDesc& idDesc)
: GrSurface(gpu, idDesc.fLifeCycle, desc)
, INHERITED(gpu, idDesc.fLifeCycle, desc) {
this->init(desc, idDesc);
this->registerWithCache();
}
GrGLRenderTarget::GrGLRenderTarget(GrGLGpu* gpu, const GrSurfaceDesc& desc, const IDDesc& idDesc,
Derived)
: GrSurface(gpu, idDesc.fLifeCycle, desc)
, INHERITED(gpu, idDesc.fLifeCycle, desc) {
this->init(desc, idDesc);
}
void GrGLRenderTarget::init(const GrSurfaceDesc& desc, const IDDesc& idDesc) {
fRenderFBO.reset(SkRef(idDesc.fRenderFBO.get()));
fTextureFBO.reset(SkSafeRef(idDesc.fTextureFBO.get()));
SkASSERT(fRenderFBO->isValid());
SkASSERT(!fTextureFBO || fTextureFBO->isValid());
fMSColorRenderbufferID = idDesc.fMSColorRenderbufferID;
fIsWrapped = kWrapped_LifeCycle == idDesc.fLifeCycle;
fViewport.fLeft = 0;
fViewport.fBottom = 0;
fViewport.fWidth = desc.fWidth;
fViewport.fHeight = desc.fHeight;
// We own one color value for each MSAA sample.
fColorValuesPerPixel = SkTMax(1, fDesc.fSampleCnt);
if (fTextureFBO && fTextureFBO != fRenderFBO) {
// If we own the resolve buffer then that is one more sample per pixel.
fColorValuesPerPixel += 1;
}
}
size_t GrGLRenderTarget::onGpuMemorySize() const {
SkASSERT(kUnknown_GrPixelConfig != fDesc.fConfig);
SkASSERT(!GrPixelConfigIsCompressed(fDesc.fConfig));
size_t colorBytes = GrBytesPerPixel(fDesc.fConfig);
SkASSERT(colorBytes > 0);
return fColorValuesPerPixel * fDesc.fWidth * fDesc.fHeight * colorBytes;
}
void GrGLRenderTarget::onRelease() {
if (!fIsWrapped) {
const GrGLInterface* gl = GLGPU->glInterface();
if (fRenderFBO) {
fRenderFBO->release(gl);
fRenderFBO.reset(NULL);
}
if (fTextureFBO) {
fTextureFBO->release(gl);
fTextureFBO.reset(NULL);
}
if (fMSColorRenderbufferID) {
GL_CALL(DeleteRenderbuffers(1, &fMSColorRenderbufferID));
fMSColorRenderbufferID = 0;
}
} else {
if (fRenderFBO) {
fRenderFBO->abandon();
fRenderFBO.reset(NULL);
}
if (fTextureFBO) {
fTextureFBO->abandon();
fTextureFBO.reset(NULL);
}
fMSColorRenderbufferID = 0;
}
INHERITED::onRelease();
}
void GrGLRenderTarget::onAbandon() {
if (fRenderFBO) {
fRenderFBO->abandon();
fRenderFBO.reset(NULL);
}
if (fTextureFBO) {
fTextureFBO->abandon();
fTextureFBO.reset(NULL);
}
fMSColorRenderbufferID = 0;
INHERITED::onAbandon();
}
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