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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.
#ifndef GrGLRenderTarget_DEFINED
#define GrGLRenderTarget_DEFINED
#include "include/core/SkScalar.h"
#include "include/gpu/GrBackendSurface.h"
#include "src/gpu/GrRenderTarget.h"
class GrGLCaps;
class GrGLGpu;
class GrGLAttachment;
class GrGLRenderTarget : public GrRenderTarget {
using GrSurface::glRTFBOIDis0;
bool alwaysClearStencil() const override { return this->glRTFBOIDis0(); }
// set fSingleSampleFBOID to this value to indicate that it is multisampled but
// Gr doesn't know how to resolve it.
enum { kUnresolvableFBOID = 0 };
struct IDs {
GrGLuint fMultisampleFBOID;
GrBackendObjectOwnership fRTFBOOwnership;
GrGLuint fSingleSampleFBOID;
GrGLuint fMSColorRenderbufferID;
int fTotalMemorySamplesPerPixel;
static sk_sp<GrGLRenderTarget> MakeWrapped(GrGLGpu*,
const SkISize&,
int sampleCount,
const IDs&,
int stencilBits);
GrGLuint singleSampleFBOID() const { return fSingleSampleFBOID; }
GrGLuint multisampleFBOID() const { return fMultisampleFBOID; }
GrBackendRenderTarget getBackendRenderTarget() const override;
GrBackendFormat backendFormat() const override;
bool canAttemptStencilAttachment(bool useMultisampleFBO) const override;
// GrGLRenderTarget overrides dumpMemoryStatistics so it can log its texture and renderbuffer
// components separately.
void dumpMemoryStatistics(SkTraceMemoryDump* traceMemoryDump) const override;
GrGLFormat format() const { return fRTFormat; }
bool hasDynamicMSAAAttachment() const { return SkToBool(fDynamicMSAAAttachment); }
bool ensureDynamicMSAAAttachment();
// Constructor for subclasses.
const SkISize&,
int sampleCount,
const IDs&);
void init(GrGLFormat, const IDs&);
void onAbandon() override;
void onRelease() override;
int totalMemorySamplesPerPixel() const { return fTotalMemorySamplesPerPixel; }
// Constructor for instances wrapping backend objects.
GrGLGpu*, const SkISize&, GrGLFormat, int sampleCount, const IDs&,
sk_sp<GrGLAttachment> stencil);
void setFlags(const GrGLCaps&, const IDs&);
GrGLGpu* getGLGpu() const;
bool completeStencilAttachment(GrAttachment* stencil, bool useMultisampleFBO) override;
size_t onGpuMemorySize() const override;
sk_sp<GrGLAttachment> fDynamicMSAAAttachment;
GrGLuint fMultisampleFBOID;
GrGLuint fSingleSampleFBOID;
GrGLuint fMSColorRenderbufferID;
GrGLFormat fRTFormat;
GrBackendObjectOwnership fRTFBOOwnership;
// The RenderTarget needs to be able to report its VRAM footprint even after abandon and
// release have potentially zeroed out the IDs (e.g., so the cache can reset itself). Since
// the IDs are just required for the computation in totalSamples we cache that result here.
int fTotalMemorySamplesPerPixel;
using INHERITED = GrRenderTarget;