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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 "GrGpuGL.h"
#define GPUGL static_cast<GrGpuGL*>(getGpu())
#define GL_CALL(X) GR_GL_CALL(GPUGL->glInterface(), X)
void GrGLRenderTarget::init(const Desc& desc,
const GrGLIRect& viewport,
GrGLTexID* texID) {
fRTFBOID = desc.fRTFBOID;
fTexFBOID = desc.fTexFBOID;
fMSColorRenderbufferID = desc.fMSColorRenderbufferID;
fViewport = viewport;
fTexIDObj.reset(SkSafeRef(texID));
this->registerWithCache();
}
namespace {
GrTextureDesc MakeDesc(GrTextureFlags flags,
int width, int height,
GrPixelConfig config, int sampleCnt,
GrSurfaceOrigin origin) {
GrTextureDesc temp;
temp.fFlags = flags;
temp.fWidth = width;
temp.fHeight = height;
temp.fConfig = config;
temp.fSampleCnt = sampleCnt;
temp.fOrigin = origin;
return temp;
}
};
GrGLRenderTarget::GrGLRenderTarget(GrGpuGL* gpu,
const Desc& desc,
const GrGLIRect& viewport,
GrGLTexID* texID,
GrGLTexture* texture)
: INHERITED(gpu,
desc.fIsWrapped,
texture,
MakeDesc(kNone_GrTextureFlags,
viewport.fWidth, viewport.fHeight,
desc.fConfig, desc.fSampleCnt,
desc.fOrigin)) {
SkASSERT(texID);
SkASSERT(texture);
// FBO 0 can't also be a texture, right?
SkASSERT(0 != desc.fRTFBOID);
SkASSERT(0 != desc.fTexFBOID);
// we assume this is true, TODO: get rid of viewport as a param.
SkASSERT(viewport.fWidth == texture->width());
SkASSERT(viewport.fHeight == texture->height());
this->init(desc, viewport, texID);
}
GrGLRenderTarget::GrGLRenderTarget(GrGpuGL* gpu,
const Desc& desc,
const GrGLIRect& viewport)
: INHERITED(gpu,
desc.fIsWrapped,
NULL,
MakeDesc(kNone_GrTextureFlags,
viewport.fWidth, viewport.fHeight,
desc.fConfig, desc.fSampleCnt,
desc.fOrigin)) {
this->init(desc, viewport, NULL);
}
void GrGLRenderTarget::onRelease() {
if (!this->isWrapped()) {
if (fTexFBOID) {
GL_CALL(DeleteFramebuffers(1, &fTexFBOID));
}
if (fRTFBOID && fRTFBOID != fTexFBOID) {
GL_CALL(DeleteFramebuffers(1, &fRTFBOID));
}
if (fMSColorRenderbufferID) {
GL_CALL(DeleteRenderbuffers(1, &fMSColorRenderbufferID));
}
}
fRTFBOID = 0;
fTexFBOID = 0;
fMSColorRenderbufferID = 0;
fTexIDObj.reset(NULL);
INHERITED::onRelease();
}
void GrGLRenderTarget::onAbandon() {
fRTFBOID = 0;
fTexFBOID = 0;
fMSColorRenderbufferID = 0;
if (fTexIDObj.get()) {
fTexIDObj->abandon();
fTexIDObj.reset(NULL);
}
INHERITED::onAbandon();
}
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