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Support GL_SAMPLES queries in null contexts

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BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2085043002

Committed: https://skia.googlesource.com/skia/+/64b92a59294a2f73448b3fa8f36f39079f032521
Review-Url: https://codereview.chromium.org/2085043002
This commit is contained in:
csmartdalton 2016-06-22 13:47:08 -07:00 committed by Commit bot
parent 17b64b2fd4
commit 57e98530c1
4 changed files with 446 additions and 85 deletions
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441
src/gpu/gl/GrGLCreateNullInterface.cpp
View File

@ -6,19 +6,97 @@
*/
#include "GrNonAtomicRef.h"
#include "gl/GrGLInterface.h"
#include "GrGLTestInterface.h"
#include "SkMutex.h"
#include "SkTDArray.h"
#include <type_traits>
// added to suppress 'no previous prototype' warning and because this code is duplicated in
// SkNullGLContext.cpp
namespace {
class BufferObj {
class GLObject : public GrNonAtomicRef<GLObject> {
public:
BufferObj(GrGLuint id) : fID(id), fDataPtr(nullptr), fSize(0), fMapped(false) {}
~BufferObj() { delete[] fDataPtr; }
GLObject(GrGLuint id) : fID(id) {}
GrGLuint id() const { return fID; }
private:
GrGLuint fID;
};
// This class maintains a sparsely populated array of object pointers.
template<typename T> class TGLObjectManager {
static_assert(std::is_convertible<T*, GLObject*>::value, "T must be a subclass of GLObject");
public:
TGLObjectManager() : fFreeListHead(kFreeListEnd) {
*fGLObjects.append() = nullptr; // 0 is not a valid GL object id.
}
~TGLObjectManager() {
// nullptr out the entries that are really free list links rather than ptrs before deleting.
intptr_t curr = fFreeListHead;
while (kFreeListEnd != curr) {
intptr_t next = reinterpret_cast<intptr_t>(fGLObjects[SkToS32(curr)]);
fGLObjects[SkToS32(curr)] = nullptr;
curr = next;
}
fGLObjects.safeUnrefAll();
}
T* lookUp(GrGLuint id) {
T* object = fGLObjects[id];
SkASSERT(object && object->id() == id);
return object;
}
T* create() {
GrGLuint id;
T* object;
if (kFreeListEnd == fFreeListHead) {
// no free slots - create a new one
id = fGLObjects.count();
object = new T(id);
*fGLObjects.append() = object;
} else {
// grab the head of the free list and advance the head to the next free slot.
id = static_cast<GrGLuint>(fFreeListHead);
fFreeListHead = reinterpret_cast<intptr_t>(fGLObjects[id]);
object = new T(id);
fGLObjects[id] = object;
}
return object;
}
void free(T* object) {
SkASSERT(object);
SkASSERT(fGLObjects.count() > 0);
GrGLuint id = object->id();
object->unref();
fGLObjects[id] = reinterpret_cast<T*>(fFreeListHead);
fFreeListHead = id;
}
private:
static const intptr_t kFreeListEnd = -1;
// Index of the first entry of fGLObjects in the free list. Free slots in fGLObjects are indices
// to the next free slot. The last free slot has a value of kFreeListEnd.
intptr_t fFreeListHead;
SkTDArray<T*> fGLObjects;
};
class Buffer : public GLObject {
public:
Buffer(GrGLuint id) : INHERITED(id), fDataPtr(nullptr), fSize(0), fMapped(false) {}
~Buffer() { delete[] fDataPtr; }
void allocate(GrGLsizeiptr size, const GrGLchar* dataPtr) {
if (fDataPtr) {
@ -30,7 +108,6 @@ public:
fDataPtr = new char[size];
}
GrGLuint id() const { return fID; }
GrGLchar* dataPtr() { return fDataPtr; }
GrGLsizeiptr size() const { return fSize; }
@ -38,82 +115,119 @@ public:
bool mapped() const { return fMapped; }
private:
GrGLuint fID;
GrGLchar* fDataPtr;
GrGLsizeiptr fSize; // size in bytes
bool fMapped;
typedef GLObject INHERITED;
};
// This class maintains a sparsely populated array of buffer pointers.
class BufferManager {
class FramebufferAttachment : public GLObject {
public:
BufferManager() : fFreeListHead(kFreeListEnd) {
*fBuffers.append() = nullptr; // 0 is not a valid GL buffer id.
}
FramebufferAttachment(int id) : INHERITED(id), fNumSamples(1) {}
int numSamples() const { return fNumSamples; }
~BufferManager() {
// nullptr out the entries that are really free list links rather than ptrs before deleting.
intptr_t curr = fFreeListHead;
while (kFreeListEnd != curr) {
intptr_t next = reinterpret_cast<intptr_t>(fBuffers[SkToS32(curr)]);
fBuffers[SkToS32(curr)] = nullptr;
curr = next;
protected:
int fNumSamples;
typedef GLObject INHERITED;
};
class Renderbuffer : public FramebufferAttachment {
public:
Renderbuffer(int id) : INHERITED(id) {}
void setNumSamples(int numSamples) { fNumSamples = numSamples; }
private:
typedef FramebufferAttachment INHERITED;
};
class Texture : public FramebufferAttachment {
public:
// We currently only use FramebufferAttachment objects for a sample count, and all textures in
// Skia have one sample, so there is no need as of yet to track individual textures. This also
// works around a bug in chromium's cc_unittests where they send us texture IDs that were
// generated by cc::TestGLES2Interface.
static Texture* GetSingleInstance() {
static Texture* singleInstance;
if (!singleInstance) {
singleInstance = new Texture();
}
fBuffers.deleteAll();
}
BufferObj* lookUp(GrGLuint id) {
BufferObj* buffer = fBuffers[id];
SkASSERT(buffer && buffer->id() == id);
return buffer;
}
BufferObj* create() {
GrGLuint id;
BufferObj* buffer;
if (kFreeListEnd == fFreeListHead) {
// no free slots - create a new one
id = fBuffers.count();
buffer = new BufferObj(id);
*fBuffers.append() = buffer;
} else {
// grab the head of the free list and advance the head to the next free slot.
id = static_cast<GrGLuint>(fFreeListHead);
fFreeListHead = reinterpret_cast<intptr_t>(fBuffers[id]);
buffer = new BufferObj(id);
fBuffers[id] = buffer;
}
return buffer;
}
void free(BufferObj* buffer) {
SkASSERT(buffer);
SkASSERT(fBuffers.count() > 0);
GrGLuint id = buffer->id();
delete buffer;
fBuffers[id] = reinterpret_cast<BufferObj*>(fFreeListHead);
fFreeListHead = id;
return singleInstance;
}
private:
static const intptr_t kFreeListEnd = -1;
// Index of the first entry of fBuffers in the free list. Free slots in fBuffers are indices to
// the next free slot. The last free slot has a value of kFreeListEnd.
intptr_t fFreeListHead;
SkTDArray<BufferObj*> fBuffers;
Texture() : INHERITED(1) {}
typedef FramebufferAttachment INHERITED;
};
class Framebuffer : public GLObject {
public:
Framebuffer(int id) : INHERITED(id) {}
void setAttachment(GrGLenum attachmentPoint, const FramebufferAttachment* attachment) {
switch (attachmentPoint) {
default:
SK_ABORT("Invalid framebuffer attachment.");
break;
case GR_GL_STENCIL_ATTACHMENT:
fAttachments[(int)AttachmentPoint::kStencil].reset(SkRef(attachment));
break;
case GR_GL_DEPTH_ATTACHMENT:
fAttachments[(int)AttachmentPoint::kDepth].reset(SkRef(attachment));
break;
case GR_GL_COLOR_ATTACHMENT0:
fAttachments[(int)AttachmentPoint::kColor].reset(SkRef(attachment));
break;
}
}
void notifyAttachmentDeleteWhileBound(const FramebufferAttachment* deleted) {
for (auto& attachment : fAttachments) {
if (attachment == deleted) {
attachment.reset(nullptr);
}
}
}
int numSamples() const {
int numSamples = 0;
for (auto& attachment : fAttachments) {
if (!attachment) {
continue;
}
if (numSamples) {
GrAlwaysAssert(attachment->numSamples() == numSamples);
continue;
}
numSamples = attachment->numSamples();
}
GrAlwaysAssert(numSamples);
return numSamples;
}
private:
enum AttachmentPoint {
kStencil,
kDepth,
kColor
};
constexpr int static kNumAttachmentPoints = 1 + (int)AttachmentPoint::kColor;
SkAutoTUnref<const FramebufferAttachment> fAttachments[kNumAttachmentPoints];
typedef GLObject INHERITED;
};
/** Null interface implementation */
class NullInterface : public GrGLTestInterface {
public:
NullInterface(bool enableNVPR)
: fCurrProgramID(0)
: fCurrDrawFramebuffer(0)
, fCurrReadFramebuffer(0)
, fCurrRenderbuffer(0)
, fCurrProgramID(0)
, fCurrShaderID(0)
, fCurrGenericID(0)
, fCurrUniformLocation(0)
@ -140,7 +254,7 @@ public:
GrGLvoid genBuffers(GrGLsizei n, GrGLuint* ids) override {
for (int i = 0; i < n; ++i) {
BufferObj* buffer = fBufferManager.create();
Buffer* buffer = fBufferManager.create();
ids[i] = buffer->id();
}
}
@ -149,7 +263,7 @@ public:
GrGLenum usage) override {
GrGLuint id = fBoundBuffers[GetBufferIndex(target)];
if (id > 0) {
BufferObj* buffer = fBufferManager.lookUp(id);
Buffer* buffer = fBufferManager.lookUp(id);
buffer->allocate(size, (const GrGLchar*) data);
}
}
@ -184,26 +298,168 @@ public:
// Then actually "delete" the buffers.
for (int i = 0; i < n; ++i) {
if (ids[i] > 0) {
BufferObj* buffer = fBufferManager.lookUp(ids[i]);
Buffer* buffer = fBufferManager.lookUp(ids[i]);
fBufferManager.free(buffer);
}
}
}
GrGLvoid genFramebuffers(GrGLsizei n, GrGLuint *framebuffers) override {
this->genGenericIds(n, framebuffers);
for (int i = 0; i < n; ++i) {
Framebuffer* framebuffer = fFramebufferManager.create();
framebuffers[i] = framebuffer->id();
}
}
GrGLvoid bindFramebuffer(GrGLenum target, GrGLuint framebuffer) override {
SkASSERT(GR_GL_FRAMEBUFFER == target || GR_GL_DRAW_FRAMEBUFFER == target ||
GR_GL_READ_FRAMEBUFFER == target);
if (GR_GL_READ_FRAMEBUFFER != target) {
fCurrDrawFramebuffer = framebuffer;
}
if (GR_GL_DRAW_FRAMEBUFFER != target) {
fCurrReadFramebuffer = framebuffer;
}
}
GrGLvoid deleteFramebuffers(GrGLsizei n, const GrGLuint* ids) override {
for (int i = 0; i < n; ++i) {
if (ids[i] == fCurrDrawFramebuffer) {
fCurrDrawFramebuffer = 0;
}
if (ids[i] == fCurrReadFramebuffer) {
fCurrReadFramebuffer = 0;
}
if (ids[i] > 0) {
Framebuffer* framebuffer = fFramebufferManager.lookUp(ids[i]);
fFramebufferManager.free(framebuffer);
}
}
}
GrGLvoid genQueries(GrGLsizei n, GrGLuint *ids) override { this->genGenericIds(n, ids); }
GrGLvoid genRenderbuffers(GrGLsizei n, GrGLuint *renderbuffers) override {
this->genGenericIds(n, renderbuffers);
for (int i = 0; i < n; ++i) {
Renderbuffer* renderbuffer = fRenderbufferManager.create();
renderbuffers[i] = renderbuffer->id();
}
}
GrGLvoid bindRenderbuffer(GrGLenum target, GrGLuint renderbuffer) override {
SkASSERT(GR_GL_RENDERBUFFER == target);
fCurrRenderbuffer = renderbuffer;
}
GrGLvoid deleteRenderbuffers(GrGLsizei n, const GrGLuint* ids) override {
for (int i = 0; i < n; ++i) {
if (ids[i] <= 0) {
continue;
}
if (ids[i] == fCurrRenderbuffer) {
fCurrRenderbuffer = 0;
}
Renderbuffer* renderbuffer = fRenderbufferManager.lookUp(ids[i]);
if (fCurrDrawFramebuffer) {
Framebuffer* drawFramebuffer = fFramebufferManager.lookUp(fCurrDrawFramebuffer);
drawFramebuffer->notifyAttachmentDeleteWhileBound(renderbuffer);
}
if (fCurrReadFramebuffer) {
Framebuffer* readFramebuffer = fFramebufferManager.lookUp(fCurrReadFramebuffer);
readFramebuffer->notifyAttachmentDeleteWhileBound(renderbuffer);
}
fRenderbufferManager.free(renderbuffer);
}
}
GrGLvoid renderbufferStorage(GrGLenum target, GrGLenum internalformat, GrGLsizei width,
GrGLsizei height) override {
GrAlwaysAssert(GR_GL_RENDERBUFFER == target);
GrAlwaysAssert(fCurrRenderbuffer);
Renderbuffer* renderbuffer = fRenderbufferManager.lookUp(fCurrRenderbuffer);
renderbuffer->setNumSamples(1);
}
GrGLvoid renderbufferStorageMultisample(GrGLenum target, GrGLsizei samples,
GrGLenum internalformat, GrGLsizei width,
GrGLsizei height) override {
GrAlwaysAssert(GR_GL_RENDERBUFFER == target);
GrAlwaysAssert(samples > 0);
GrAlwaysAssert(fCurrRenderbuffer);
Renderbuffer* renderbuffer = fRenderbufferManager.lookUp(fCurrRenderbuffer);
renderbuffer->setNumSamples(samples);
}
GrGLvoid namedRenderbufferStorage(GrGLuint renderbuffer, GrGLenum GrGLinternalformat,
GrGLsizei width, GrGLsizei height) override {
SK_ABORT("Not implemented");
}
GrGLvoid namedRenderbufferStorageMultisample(GrGLuint renderbuffer, GrGLsizei samples,
GrGLenum GrGLinternalformat, GrGLsizei width,
GrGLsizei height) override {
SK_ABORT("Not implemented");
}
GrGLvoid framebufferRenderbuffer(GrGLenum target, GrGLenum attachment,
GrGLenum renderbuffertarget,
GrGLuint renderBufferID) override {
GrGLuint id = this->getBoundFramebufferID(target);
GrAlwaysAssert(id);
Framebuffer* framebuffer = fFramebufferManager.lookUp(id);
GrAlwaysAssert(GR_GL_RENDERBUFFER == renderbuffertarget);
GrAlwaysAssert(fCurrRenderbuffer);
Renderbuffer* renderbuffer = fRenderbufferManager.lookUp(fCurrRenderbuffer);
framebuffer->setAttachment(attachment, renderbuffer);
}
GrGLvoid namedFramebufferRenderbuffer(GrGLuint framebuffer, GrGLenum attachment,
GrGLenum renderbuffertarget,
GrGLuint renderbuffer) override {
SK_ABORT("Not implemented");
}
GrGLvoid genTextures(GrGLsizei n, GrGLuint *textures) override {
this->genGenericIds(n, textures);
}
GrGLvoid framebufferTexture2D(GrGLenum target, GrGLenum attachment, GrGLenum textarget,
GrGLuint textureID, GrGLint level) override {
GrGLuint id = this->getBoundFramebufferID(target);
GrAlwaysAssert(id);
Framebuffer* framebuffer = fFramebufferManager.lookUp(id);
framebuffer->setAttachment(attachment, Texture::GetSingleInstance());
}
GrGLvoid framebufferTexture2DMultisample(GrGLenum target, GrGLenum attachment,
GrGLenum textarget, GrGLuint texture, GrGLint level,
GrGLsizei samples) override {
SK_ABORT("Not implemented");
}
GrGLvoid namedFramebufferTexture1D(GrGLuint framebuffer, GrGLenum attachment,
GrGLenum textarget, GrGLuint texture,
GrGLint level) override {
SK_ABORT("Not implemented");
}
GrGLvoid namedFramebufferTexture2D(GrGLuint framebuffer, GrGLenum attachment,
GrGLenum textarget, GrGLuint texture,
GrGLint level) override {
SK_ABORT("Not implemented");
}
GrGLvoid namedFramebufferTexture3D(GrGLuint framebuffer, GrGLenum attachment,
GrGLenum textarget, GrGLuint texture, GrGLint level,
GrGLint zoffset) override {
SK_ABORT("Not implemented");
}
GrGLvoid genVertexArrays(GrGLsizei n, GrGLuint *arrays) override {
this->genGenericIds(n, arrays);
}
@ -220,9 +476,12 @@ public:
case GR_GL_STENCIL_BITS:
*params = 8;
break;
case GR_GL_SAMPLES:
*params = 1;
case GR_GL_SAMPLES: {
GrAlwaysAssert(fCurrDrawFramebuffer);
Framebuffer* framebuffer = fFramebufferManager.lookUp(fCurrDrawFramebuffer);
*params = framebuffer->numSamples();
break;
}
case GR_GL_FRAMEBUFFER_BINDING:
*params = 0;
break;
@ -376,7 +635,7 @@ public:
GrGLuint id = fBoundBuffers[GetBufferIndex(target)];
if (id > 0) {
// We just ignore the offset and length here.
BufferObj* buffer = fBufferManager.lookUp(id);
Buffer* buffer = fBufferManager.lookUp(id);
SkASSERT(!buffer->mapped());
buffer->setMapped(true);
return buffer->dataPtr();
@ -387,7 +646,7 @@ public:
GrGLvoid* mapBuffer(GrGLenum target, GrGLenum access) override {
GrGLuint id = fBoundBuffers[GetBufferIndex(target)];
if (id > 0) {
BufferObj* buffer = fBufferManager.lookUp(id);
Buffer* buffer = fBufferManager.lookUp(id);
SkASSERT(!buffer->mapped());
buffer->setMapped(true);
return buffer->dataPtr();
@ -400,7 +659,7 @@ public:
GrGLboolean unmapBuffer(GrGLenum target) override {
GrGLuint id = fBoundBuffers[GetBufferIndex(target)];
if (id > 0) {
BufferObj* buffer = fBufferManager.lookUp(id);
Buffer* buffer = fBufferManager.lookUp(id);
SkASSERT(buffer->mapped());
buffer->setMapped(false);
return GR_GL_TRUE;
@ -416,7 +675,7 @@ public:
*params = GR_GL_FALSE;
GrGLuint id = fBoundBuffers[GetBufferIndex(target)];
if (id > 0) {
BufferObj* buffer = fBufferManager.lookUp(id);
Buffer* buffer = fBufferManager.lookUp(id);
if (buffer->mapped()) {
*params = GR_GL_TRUE;
}
@ -448,14 +707,19 @@ private:
}
constexpr int static kNumBufferTargets = 6;
BufferManager fBufferManager;
GrGLuint fBoundBuffers[kNumBufferTargets];
GrGLuint fCurrProgramID;
GrGLuint fCurrShaderID;
GrGLuint fCurrGenericID;
GrGLuint fCurrUniformLocation;
GrGLuint fCurrPathID;
SkTArray<const char*> fExtensions;
TGLObjectManager<Buffer> fBufferManager;
GrGLuint fBoundBuffers[kNumBufferTargets];
TGLObjectManager<Framebuffer> fFramebufferManager;
GrGLuint fCurrDrawFramebuffer;
GrGLuint fCurrReadFramebuffer;
TGLObjectManager<Renderbuffer> fRenderbufferManager;
GrGLuint fCurrRenderbuffer;
GrGLuint fCurrProgramID;
GrGLuint fCurrShaderID;
GrGLuint fCurrGenericID;
GrGLuint fCurrUniformLocation;
GrGLuint fCurrPathID;
SkTArray<const char*> fExtensions;
// the OpenGLES 2.0 spec says this must be >= 128
static const GrGLint kDefaultMaxVertexUniformVectors = 128;
@ -469,6 +733,19 @@ private:
// the OpenGLES 2.0 spec says this must be >= 8
static const GrGLint kDefaultMaxVaryingVectors = 8;
GrGLuint getBoundFramebufferID(GrGLenum target) {
switch (target) {
case GR_GL_FRAMEBUFFER:
case GR_GL_DRAW_FRAMEBUFFER:
return fCurrDrawFramebuffer;
case GR_GL_READ_FRAMEBUFFER:
return fCurrReadFramebuffer;
default:
SK_ABORT("Invalid framebuffer target.");
return 0;
}
}
const GrGLubyte* CombinedExtensionString() {
static SkString gExtString;
static SkMutex gMutex;

79
tools/gpu/gl/debug/DebugGLTestContext.cpp
View File

@ -373,6 +373,34 @@ public:
}
}
GrGLvoid renderbufferStorage(GrGLenum target, GrGLenum internalformat, GrGLsizei width,
GrGLsizei height) override {
GrAlwaysAssert(GR_GL_RENDERBUFFER == target);
GrRenderBufferObj* renderBuffer = this->getRenderBuffer();
GrAlwaysAssert(renderBuffer);
renderBuffer->setNumSamples(1);
}
GrGLvoid renderbufferStorageMultisample(GrGLenum target, GrGLsizei samples,
GrGLenum internalformat, GrGLsizei width,
GrGLsizei height) override {
GrAlwaysAssert(GR_GL_RENDERBUFFER == target);
GrRenderBufferObj* renderBuffer = this->getRenderBuffer();
GrAlwaysAssert(renderBuffer);
renderBuffer->setNumSamples(samples);
}
GrGLvoid namedRenderbufferStorage(GrGLuint renderbuffer, GrGLenum GrGLinternalformat,
GrGLsizei width, GrGLsizei height) override {
SK_ABORT("Not implemented");
}
GrGLvoid namedRenderbufferStorageMultisample(GrGLuint renderbuffer, GrGLsizei samples,
GrGLenum GrGLinternalformat, GrGLsizei width,
GrGLsizei height) override {
SK_ABORT("Not implemented");
}
GrGLvoid framebufferRenderbuffer(GrGLenum target,
GrGLenum attachment,
GrGLenum renderbuffertarget,
@ -410,6 +438,12 @@ public:
}
GrGLvoid namedFramebufferRenderbuffer(GrGLuint framebuffer, GrGLenum attachment,
GrGLenum renderbuffertarget,
GrGLuint renderbuffer) override {
SK_ABORT("Not implemented");
}
////////////////////////////////////////////////////////////////////////////////
GrGLvoid framebufferTexture2D(GrGLenum target, GrGLenum attachment, GrGLenum textarget,
GrGLuint textureID, GrGLint level) override {
@ -450,6 +484,30 @@ public:
};
}
GrGLvoid framebufferTexture2DMultisample(GrGLenum target, GrGLenum attachment,
GrGLenum textarget, GrGLuint texture, GrGLint level,
GrGLsizei samples) override {
SK_ABORT("Not implemented");
}
GrGLvoid namedFramebufferTexture1D(GrGLuint framebuffer, GrGLenum attachment,
GrGLenum textarget, GrGLuint texture,
GrGLint level) override {
SK_ABORT("Not implemented");
}
GrGLvoid namedFramebufferTexture2D(GrGLuint framebuffer, GrGLenum attachment,
GrGLenum textarget, GrGLuint texture,
GrGLint level) override {
SK_ABORT("Not implemented");
}
GrGLvoid namedFramebufferTexture3D(GrGLuint framebuffer, GrGLenum attachment,
GrGLenum textarget, GrGLuint texture, GrGLint level,
GrGLint zoffset) override {
SK_ABORT("Not implemented");
}
GrGLuint createProgram() override {
GrProgramObj *program = CREATE(GrProgramObj, kProgram_ObjTypes);
@ -530,9 +588,26 @@ public:
case GR_GL_STENCIL_BITS:
*params = 8;
break;
case GR_GL_SAMPLES:
*params = 1;
case GR_GL_SAMPLES: {
GrFrameBufferObj* framebuffer = this->getFrameBuffer();
GrAlwaysAssert(framebuffer);
int numSamples = 0;
if (GrFBBindableObj* stencil = framebuffer->getStencil()) {
numSamples = stencil->numSamples();
}
if (GrFBBindableObj* depth = framebuffer->getDepth()) {
GrAlwaysAssert(!numSamples || numSamples == depth->numSamples());
numSamples = depth->numSamples();
}
if (GrFBBindableObj* color = framebuffer->getColor()) {
GrAlwaysAssert(!numSamples || numSamples == color->numSamples());
numSamples = color->numSamples();
}
GrAlwaysAssert(numSamples);
*params = numSamples;
break;
}
case GR_GL_FRAMEBUFFER_BINDING:
*params = 0;
break;

6
tools/gpu/gl/debug/GrFBBindableObj.h
View File

@ -18,7 +18,8 @@ class GrFBBindableObj : public GrFakeRefObj {
public:
GrFBBindableObj()
: GrFakeRefObj() {
: GrFakeRefObj()
, fNumSamples(1) {
}
virtual ~GrFBBindableObj() {
@ -75,8 +76,11 @@ public:
return 0 != fStencilReferees.count();
}
int numSamples() { return fNumSamples; }
protected:
int fNumSamples;
private:
SkTDArray<GrFakeRefObj *> fColorReferees; // frame buffers that use this as a color buffer (via "glFramebufferRenderbuffer" or "glFramebufferTexture2D")
SkTDArray<GrFakeRefObj *> fDepthReferees; // frame buffers that use this as a depth buffer (via "glFramebufferRenderbuffer" or "glFramebufferTexture2D")

5
tools/gpu/gl/debug/GrRenderBufferObj.h
View File

@ -30,6 +30,11 @@ public:
this->INHERITED::deleteAction();
}
void setNumSamples(int numSamples) {
GrAlwaysAssert(numSamples > 0);
fNumSamples = numSamples;
}
protected:
private:
bool fBound; // is this render buffer currently bound via "glBindRenderbuffer"?