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gecko-dev/gfx/gl/GLContext.h

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/* -*- Mode: c++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 40; -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef GLCONTEXT_H_
#define GLCONTEXT_H_
#include <stdio.h>
#if defined(XP_UNIX)
#include <stdint.h>
#endif
#include <string.h>
#include <ctype.h>
#ifdef WIN32
#include <windows.h>
#endif
#include "GLDefs.h"
#include "GLLibraryLoader.h"
#include "gfxASurface.h"
#include "gfxImageSurface.h"
#include "gfxContext.h"
#include "gfxRect.h"
#include "gfx3DMatrix.h"
#include "nsISupportsImpl.h"
#include "prlink.h"
#include "nsDataHashtable.h"
#include "nsHashKeys.h"
#include "nsRegion.h"
#include "nsAutoPtr.h"
#include "nsThreadUtils.h"
#include "GLContextTypes.h"
#include "GLTextureImage.h"
typedef char realGLboolean;
#include "GLContextSymbols.h"
#include "mozilla/mozalloc.h"
#include "mozilla/Preferences.h"
namespace android {
class GraphicBuffer;
}
namespace mozilla {
namespace layers {
class LayerManagerOGL;
class ColorTextureLayerProgram;
}
namespace gl {
class GLContext;
typedef uintptr_t SharedTextureHandle;
struct THEBES_API ContextFormat
{
static const ContextFormat BasicRGBA32Format;
enum StandardContextFormat {
Empty,
BasicRGBA32,
StrictBasicRGBA32,
BasicRGB24,
StrictBasicRGB24,
BasicRGB16_565,
StrictBasicRGB16_565
};
ContextFormat() {
memset(this, 0, sizeof(ContextFormat));
}
ContextFormat(const StandardContextFormat cf) {
memset(this, 0, sizeof(ContextFormat));
switch (cf) {
case BasicRGBA32:
red = green = blue = alpha = 8;
minRed = minGreen = minBlue = minAlpha = 1;
break;
case StrictBasicRGBA32:
red = green = blue = alpha = 8;
minRed = minGreen = minBlue = minAlpha = 8;
break;
case BasicRGB24:
red = green = blue = 8;
minRed = minGreen = minBlue = 1;
break;
case StrictBasicRGB24:
red = green = blue = 8;
minRed = minGreen = minBlue = 8;
break;
case StrictBasicRGB16_565:
red = minRed = 5;
green = minGreen = 6;
blue = minBlue = 5;
break;
default:
break;
}
}
int depth, minDepth;
int stencil, minStencil;
int red, minRed;
int green, minGreen;
int blue, minBlue;
int alpha, minAlpha;
int samples;
int colorBits() const { return red + green + blue; }
};
class GLContext
: public GLLibraryLoader
{
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(GLContext)
public:
GLContext(const ContextFormat& aFormat,
bool aIsOffscreen = false,
GLContext *aSharedContext = nullptr)
: mTexBlit_Buffer(0),
mTexBlit_VertShader(0),
mTexBlit_FragShader(0),
mTexBlit_Program(0),
mTexBlit_UseDrawNotCopy(false),
mUserBoundDrawFBO(0),
mUserBoundReadFBO(0),
mInternalBoundDrawFBO(0),
mInternalBoundReadFBO(0),
#ifdef DEBUG
mInInternalBindingMode_DrawFBO(true),
mInInternalBindingMode_ReadFBO(true),
#endif
mOffscreenFBOsDirty(false),
mInitialized(false),
mIsOffscreen(aIsOffscreen),
mIsGLES2(false),
mIsGlobalSharedContext(false),
mHasRobustness(false),
mContextLost(false),
mVendor(-1),
mRenderer(-1),
mCreationFormat(aFormat),
mSharedContext(aSharedContext),
mOffscreenTexture(0),
mFlipped(false),
mBlitProgram(0),
mBlitFramebuffer(0),
mOffscreenDrawFBO(0),
mOffscreenReadFBO(0),
mOffscreenColorRB(0),
mOffscreenDepthRB(0),
mOffscreenStencilRB(0),
mMaxTextureSize(0),
mMaxCubeMapTextureSize(0),
mMaxTextureImageSize(0),
mMaxRenderbufferSize(0),
mNeedsTextureSizeChecks(false),
mWorkAroundDriverBugs(true)
#ifdef DEBUG
, mGLError(LOCAL_GL_NO_ERROR)
#endif
{
mUserData.Init();
mOwningThread = NS_GetCurrentThread();
mTexBlit_UseDrawNotCopy = Preferences::GetBool("gl.blit-draw-not-copy", false);
}
virtual ~GLContext() {
NS_ASSERTION(IsDestroyed(), "GLContext implementation must call MarkDestroyed in destructor!");
#ifdef DEBUG
if (mSharedContext) {
GLContext *tip = mSharedContext;
while (tip->mSharedContext)
tip = tip->mSharedContext;
tip->SharedContextDestroyed(this);
tip->ReportOutstandingNames();
} else {
ReportOutstandingNames();
}
#endif
}
enum ContextFlags {
ContextFlagsNone = 0x0,
ContextFlagsGlobal = 0x1,
ContextFlagsMesaLLVMPipe = 0x2
};
enum GLContextType {
ContextTypeUnknown,
ContextTypeWGL,
ContextTypeCGL,
ContextTypeGLX,
ContextTypeEGL
};
virtual GLContextType GetContextType() { return ContextTypeUnknown; }
virtual bool MakeCurrentImpl(bool aForce = false) = 0;
#ifdef DEBUG
static void StaticInit() {
PR_NewThreadPrivateIndex(&sCurrentGLContextTLS, NULL);
}
#endif
bool MakeCurrent(bool aForce = false) {
#ifdef DEBUG
PR_SetThreadPrivate(sCurrentGLContextTLS, this);
// XXX this assertion is disabled because it's triggering on Mac;
// we need to figure out why and reenable it.
#if 0
// IsOwningThreadCurrent is a bit of a misnomer;
// the "owning thread" is the creation thread,
// and the only thread that can own this. We don't
// support contexts used on multiple threads.
NS_ASSERTION(IsOwningThreadCurrent(),
"MakeCurrent() called on different thread than this context was created on!");
#endif
#endif
return MakeCurrentImpl(aForce);
}
virtual bool IsCurrent() = 0;
bool IsContextLost() { return mContextLost; }
virtual bool SetupLookupFunction() = 0;
virtual void WindowDestroyed() {}
virtual void ReleaseSurface() {}
void *GetUserData(void *aKey) {
void *result = nullptr;
mUserData.Get(aKey, &result);
return result;
}
void SetUserData(void *aKey, void *aValue) {
mUserData.Put(aKey, aValue);
}
// Mark this context as destroyed. This will NULL out all
// the GL function pointers!
void THEBES_API MarkDestroyed();
bool IsDestroyed() {
// MarkDestroyed will mark all these as null.
return mSymbols.fUseProgram == nullptr;
}
enum NativeDataType {
NativeGLContext,
NativeImageSurface,
NativeThebesSurface,
NativeDataTypeMax
};
virtual void *GetNativeData(NativeDataType aType) { return NULL; }
GLContext *GetSharedContext() { return mSharedContext; }
bool IsGlobalSharedContext() { return mIsGlobalSharedContext; }
void SetIsGlobalSharedContext(bool aIsOne) { mIsGlobalSharedContext = aIsOne; }
/**
* Returns true if the thread on which this context was created is the currently
* executing thread.
*/
bool IsOwningThreadCurrent() { return NS_GetCurrentThread() == mOwningThread; }
void DispatchToOwningThread(nsIRunnable *event) {
// Before dispatching, we need to ensure we're not in the middle of
// shutting down. Dispatching runnables in the middle of shutdown
// (that is, when the main thread is no longer get-able) can cause them
// to leak. See Bug 741319, and Bug 744115.
nsCOMPtr<nsIThread> mainThread;
if (NS_SUCCEEDED(NS_GetMainThread(getter_AddRefs(mainThread)))) {
mOwningThread->Dispatch(event, NS_DISPATCH_NORMAL);
}
}
const ContextFormat& CreationFormat() { return mCreationFormat; }
const ContextFormat& ActualFormat() { return mActualFormat; }
/**
* If this GL context has a D3D texture share handle, returns non-null.
*/
virtual void *GetD3DShareHandle() { return nullptr; }
/**
* If this context is double-buffered, returns TRUE.
*/
virtual bool IsDoubleBuffered() { return false; }
/**
* If this context is the GLES2 API, returns TRUE.
* This means that various GLES2 restrictions might be in effect (modulo
* extensions).
*/
bool IsGLES2() const {
return mIsGLES2;
}
/**
* Returns true if either this is the GLES2 API, or had the GL_ARB_ES2_compatibility extension
*/
bool HasES2Compatibility() {
return mIsGLES2 || IsExtensionSupported(ARB_ES2_compatibility);
}
/**
* Returns true if the context is using ANGLE. This should only be overridden for an ANGLE
* implementation.
*/
virtual bool IsANGLE() {
return false;
}
/**
* The derived class is expected to provide information on whether or not it
* supports robustness.
*/
virtual bool SupportsRobustness() = 0;
enum {
VendorIntel,
VendorNVIDIA,
VendorATI,
VendorQualcomm,
VendorImagination,
VendorNouveau,
VendorOther
};
enum {
RendererAdreno200,
RendererAdreno205,
RendererSGX530,
RendererSGX540,
RendererOther
};
int Vendor() const {
return mVendor;
}
int Renderer() const {
return mRenderer;
}
bool CanUploadSubTextures();
static void PlatformStartup();
protected:
static bool sPowerOfTwoForced;
static bool sPowerOfTwoPrefCached;
static void CacheCanUploadNPOT();
public:
bool CanUploadNonPowerOfTwo();
bool WantsSmallTiles();
virtual bool HasLockSurface() { return false; }
/**
* If this context wraps a double-buffered target, swap the back
* and front buffers. It should be assumed that after a swap, the
* contents of the new back buffer are undefined.
*/
virtual bool SwapBuffers() { return false; }
/**
* Defines a two-dimensional texture image for context target surface
*/
virtual bool BindTexImage() { return false; }
/*
* Releases a color buffer that is being used as a texture
*/
virtual bool ReleaseTexImage() { return false; }
/**
* Applies aFilter to the texture currently bound to GL_TEXTURE_2D.
*/
void ApplyFilterToBoundTexture(gfxPattern::GraphicsFilter aFilter);
/**
* Applies aFilter to the texture currently bound to aTarget.
*/
void ApplyFilterToBoundTexture(GLuint aTarget,
gfxPattern::GraphicsFilter aFilter);
virtual bool BindExternalBuffer(GLuint texture, void* buffer) { return false; }
virtual bool UnbindExternalBuffer(GLuint texture) { return false; }
virtual already_AddRefed<TextureImage>
CreateDirectTextureImage(android::GraphicBuffer* aBuffer, GLenum aWrapMode)
{ return nullptr; }
/*
* Offscreen support API
*/
/*
* Bind aOffscreen's color buffer as a texture to the TEXTURE_2D
* target. Returns TRUE on success, otherwise FALSE. If
* aOffscreen is not an offscreen context, returns FALSE. If
* BindOffscreenNeedsTexture() returns TRUE, then you should have
* a 2D texture name bound whose image will be replaced by the
* contents of the offscreen context. If it returns FALSE,
* the current 2D texture binding will be replaced.
*
* After a successul call to BindTex2DOffscreen, UnbindTex2DOffscreen
* *must* be called once rendering is complete.
*
* The same texture unit must be active for Bind/Unbind of a given
* context.
*/
virtual bool BindOffscreenNeedsTexture(GLContext *aOffscreen) {
return aOffscreen->mOffscreenTexture == 0;
}
virtual bool BindTex2DOffscreen(GLContext *aOffscreen) {
if (aOffscreen->GetContextType() != GetContextType()) {
return false;
}
if (!aOffscreen->mSharedContext ||
aOffscreen->mSharedContext != mSharedContext)
{
return false;
}
if (!aOffscreen->mOffscreenTexture) {
return false;
}
fBindTexture(LOCAL_GL_TEXTURE_2D, aOffscreen->mOffscreenTexture);
return true;
}
virtual void UnbindTex2DOffscreen(GLContext *aOffscreen) { }
bool IsOffscreen() {
return mIsOffscreen;
}
// Before reads from offscreen texture
void GuaranteeResolve() {
BlitDirtyFBOs();
fFinish();
}
protected:
GLuint mTexBlit_Buffer;
GLuint mTexBlit_VertShader;
GLuint mTexBlit_FragShader;
GLuint mTexBlit_Program;
bool mTexBlit_UseDrawNotCopy;
bool UseTexQuadProgram();
void DeleteTexBlitProgram();
public:
void BlitFramebufferToFramebuffer(GLuint srcFB, GLuint destFB,
const gfxIntSize& srcSize,
const gfxIntSize& destSize);
void BlitTextureToFramebuffer(GLuint srcTex, GLuint destFB,
const gfxIntSize& srcSize,
const gfxIntSize& destSize);
void BlitFramebufferToTexture(GLuint srcFB, GLuint destTex,
const gfxIntSize& srcSize,
const gfxIntSize& destSize);
void BlitTextureToTexture(GLuint srcTex, GLuint destTex,
const gfxIntSize& srcSize,
const gfxIntSize& destSize);
/*
* Resize the current offscreen buffer. Returns true on success.
* If it returns false, the context should be treated as unusable
* and should be recreated. After the resize, the viewport is not
* changed; glViewport should be called as appropriate.
*
* Only valid if IsOffscreen() returns true.
*/
virtual bool ResizeOffscreen(const gfxIntSize& aNewSize) {
if (mOffscreenDrawFBO || mOffscreenReadFBO)
return ResizeOffscreenFBOs(aNewSize, mOffscreenReadFBO != 0);
return false;
}
/*
* Return size of this offscreen context.
*
* Only valid if IsOffscreen() returns true.
*/
gfxIntSize OffscreenSize() {
return mOffscreenSize;
}
/*
* In some cases, we have to allocate a bigger offscreen buffer
* than what's requested. This is the bigger size.
*
* Only valid if IsOffscreen() returns true.
*/
gfxIntSize OffscreenActualSize() {
return mOffscreenActualSize;
}
/*
* If this context is FBO-backed, return the FBO or the color
* buffer texture. If the context is not FBO-backed, 0 is
* returned (which is also a valid FBO binding).
*
* Only valid if IsOffscreen() returns true.
*/
GLuint GetOffscreenFBO() {
// 0 is interpreted as (off)screen, whether for read or draw operations
return 0;
}
GLuint GetOffscreenTexture() {
return mOffscreenTexture;
}
virtual bool SupportsFramebufferMultisample() {
return IsExtensionSupported(EXT_framebuffer_multisample) || IsExtensionSupported(ANGLE_framebuffer_multisample);
}
virtual bool SupportsOffscreenSplit() {
return IsExtensionSupported(EXT_framebuffer_blit) || IsExtensionSupported(ANGLE_framebuffer_blit);
}
enum SharedTextureShareType {
SameProcess = 0,
CrossProcess
};
enum SharedTextureBufferType {
TextureID
#ifdef MOZ_WIDGET_ANDROID
, SurfaceTexture
#endif
};
/**
* Create new shared GLContext content handle, must be released by ReleaseSharedHandle.
*/
virtual SharedTextureHandle CreateSharedHandle(SharedTextureShareType shareType)
{ return 0; }
/*
* Create a new shared GLContext content handle, using the passed buffer as a source.
* Must be released by ReleaseSharedHandle. UpdateSharedHandle will have no effect
* on handles created with this method, as the caller owns the source (the passed buffer)
* and is responsible for updating it accordingly.
*/
virtual SharedTextureHandle CreateSharedHandle(SharedTextureShareType shareType,
void* buffer,
SharedTextureBufferType bufferType)
{ return 0; }
/**
* Publish GLContext content to intermediate buffer attached to shared handle.
* Shared handle content is ready to be used after call returns, and no need extra Flush/Finish are required.
* GLContext must be current before this call
*/
virtual void UpdateSharedHandle(SharedTextureShareType shareType,
SharedTextureHandle sharedHandle)
{ }
/**
* - It is better to call ReleaseSharedHandle before original GLContext destroyed,
* otherwise warning will be thrown on attempt to destroy Texture associated with SharedHandle, depends on backend implementation.
* - It does not require to be called on context where it was created,
* because SharedHandle suppose to keep Context reference internally,
* or don't require specific context at all, for example IPC SharedHandle.
* - Not recommended to call this between AttachSharedHandle and Draw Target call.
* if it is really required for some special backend, then DetachSharedHandle API must be added with related implementation.
* - It is recommended to stop any possible access to SharedHandle (Attachments, pending GL calls) before calling Release,
* otherwise some artifacts might appear or even crash if API backend implementation does not expect that.
* SharedHandle (currently EGLImage) does not require GLContext because it is EGL call, and can be destroyed
* at any time, unless EGLImage have siblings (which are not expected with current API).
*/
virtual void ReleaseSharedHandle(SharedTextureShareType shareType,
SharedTextureHandle sharedHandle)
{ }
typedef struct {
GLenum mTarget;
ShaderProgramType mProgramType;
gfx3DMatrix mTextureTransform;
} SharedHandleDetails;
/**
* Returns information necessary for rendering a shared handle.
* These values change depending on what sharing mechanism is in use
*/
virtual bool GetSharedHandleDetails(SharedTextureShareType shareType,
SharedTextureHandle sharedHandle,
SharedHandleDetails& details)
{ return false; }
/**
* Attach Shared GL Handle to GL_TEXTURE_2D target
* GLContext must be current before this call
*/
virtual bool AttachSharedHandle(SharedTextureShareType shareType,
SharedTextureHandle sharedHandle)
{ return false; }
/**
* Detach Shared GL Handle from GL_TEXTURE_2D target
*/
virtual void DetachSharedHandle(SharedTextureShareType shareType,
SharedTextureHandle sharedHandle)
{ }
private:
GLuint mUserBoundDrawFBO;
GLuint mUserBoundReadFBO;
GLuint mInternalBoundDrawFBO;
GLuint mInternalBoundReadFBO;
public:
void fBindFramebuffer(GLenum target, GLuint framebuffer) {
switch (target) {
case LOCAL_GL_DRAW_FRAMEBUFFER_EXT:
mUserBoundDrawFBO = framebuffer;
if (framebuffer == 0) {
mInternalBoundDrawFBO = mOffscreenDrawFBO;
} else {
mInternalBoundDrawFBO = mUserBoundDrawFBO;
}
raw_fBindFramebuffer(LOCAL_GL_DRAW_FRAMEBUFFER_EXT,
mInternalBoundDrawFBO);
break;
case LOCAL_GL_READ_FRAMEBUFFER_EXT:
mUserBoundReadFBO = framebuffer;
if (framebuffer == 0) {
mInternalBoundReadFBO = mOffscreenReadFBO;
} else {
mInternalBoundReadFBO = mUserBoundReadFBO;
}
raw_fBindFramebuffer(LOCAL_GL_READ_FRAMEBUFFER_EXT,
mInternalBoundReadFBO);
break;
case LOCAL_GL_FRAMEBUFFER:
mUserBoundDrawFBO = mUserBoundReadFBO = framebuffer;
if (framebuffer == 0) {
mInternalBoundDrawFBO = mOffscreenDrawFBO;
mInternalBoundReadFBO = mOffscreenReadFBO;
} else {
mInternalBoundDrawFBO = mUserBoundDrawFBO;
mInternalBoundReadFBO = mUserBoundReadFBO;
}
if (SupportsOffscreenSplit()) {
raw_fBindFramebuffer(LOCAL_GL_DRAW_FRAMEBUFFER_EXT,
mInternalBoundDrawFBO);
raw_fBindFramebuffer(LOCAL_GL_READ_FRAMEBUFFER_EXT,
mInternalBoundReadFBO);
} else {
raw_fBindFramebuffer(LOCAL_GL_FRAMEBUFFER,
mInternalBoundDrawFBO);
}
break;
default:
raw_fBindFramebuffer(target, framebuffer);
break;
}
}
void fGetIntegerv(GLenum pname, GLint *params) {
switch (pname)
{
// LOCAL_GL_FRAMEBUFFER_BINDING is equal to
// LOCAL_GL_DRAW_FRAMEBUFFER_BINDING_EXT, so we don't need two
// cases.
case LOCAL_GL_FRAMEBUFFER_BINDING:
*params = GetUserBoundDrawFBO();
break;
case LOCAL_GL_READ_FRAMEBUFFER_BINDING_EXT:
*params = GetUserBoundReadFBO();
break;
case LOCAL_GL_MAX_TEXTURE_SIZE:
*params = mMaxTextureSize;
break;
case LOCAL_GL_MAX_CUBE_MAP_TEXTURE_SIZE:
*params = mMaxCubeMapTextureSize;
break;
case LOCAL_GL_MAX_RENDERBUFFER_SIZE:
*params = mMaxRenderbufferSize;
break;
default:
raw_fGetIntegerv(pname, params);
break;
}
}
#ifdef DEBUG
// See comment near BindInternalDrawFBO()
bool mInInternalBindingMode_DrawFBO;
bool mInInternalBindingMode_ReadFBO;
#endif
GLuint GetUserBoundDrawFBO() {
#ifdef DEBUG
MOZ_ASSERT(IsCurrent());
GLint ret = 0;
// Don't need a branch here, because:
// LOCAL_GL_DRAW_FRAMEBUFFER_BINDING_EXT == LOCAL_GL_FRAMEBUFFER_BINDING == 0x8CA6
// We use raw_ here because this is debug code and we need to see what
// the driver thinks.
raw_fGetIntegerv(LOCAL_GL_DRAW_FRAMEBUFFER_BINDING_EXT, &ret);
bool abort = false;
if (mInInternalBindingMode_DrawFBO) {
NS_ERROR("Draw FBO still bound internally!");
printf_stderr("Current internal draw FBO: %d, user: %d)\n", ret, mUserBoundDrawFBO);
abort = true;
}
if (mInternalBoundDrawFBO != (GLuint)ret) {
NS_ERROR("Draw FBO binding misprediction!");
printf_stderr("Bound draw FBO was: %d, Expected: %d\n", ret, mInternalBoundDrawFBO);
abort = true;
}
if (abort)
NS_ABORT();
#endif
// We only ever expose the user's bound FBOs
return mUserBoundDrawFBO;
}
GLuint GetUserBoundReadFBO() {
#ifdef DEBUG
MOZ_ASSERT(IsCurrent());
GLint ret = 0;
// We use raw_ here because this is debug code and we need to see what
// the driver thinks.
if (SupportsOffscreenSplit())
raw_fGetIntegerv(LOCAL_GL_READ_FRAMEBUFFER_BINDING_EXT, &ret);
else
raw_fGetIntegerv(LOCAL_GL_FRAMEBUFFER_BINDING, &ret);
bool abort = false;
if (mInInternalBindingMode_ReadFBO) {
NS_ERROR("Read FBO still bound internally!");
printf_stderr("Current internal read FBO: %d, user: %d)\n", ret, mUserBoundReadFBO);
abort = true;
}
if (mInternalBoundReadFBO != (GLuint)ret) {
NS_ERROR("Read FBO binding misprediction!");
printf_stderr("Bound read FBO was: %d, Expected: %d\n", ret, mInternalBoundReadFBO);
abort = true;
}
if (abort)
NS_ABORT();
#endif
// We only ever expose the user's bound FBOs
return mUserBoundReadFBO;
}
void BindUserDrawFBO(GLuint name) {
if (SupportsOffscreenSplit())
fBindFramebuffer(LOCAL_GL_DRAW_FRAMEBUFFER_EXT, name);
else
fBindFramebuffer(LOCAL_GL_FRAMEBUFFER, name);
#ifdef DEBUG
mInInternalBindingMode_DrawFBO = false;
#endif
}
void BindUserReadFBO(GLuint name) {
if (SupportsOffscreenSplit())
fBindFramebuffer(LOCAL_GL_READ_FRAMEBUFFER_EXT, name);
else
fBindFramebuffer(LOCAL_GL_FRAMEBUFFER, name);
#ifdef DEBUG
mInInternalBindingMode_ReadFBO = false;
#endif
}
GLuint GetUserBoundFBO() {
MOZ_ASSERT(GetUserBoundDrawFBO() == GetUserBoundReadFBO());
return GetUserBoundReadFBO();
}
void BindUserFBO(GLuint name) {
fBindFramebuffer(LOCAL_GL_FRAMEBUFFER, name);
}
// BindInternalDraw/ReadFBO() switch us over into 'internal binding mode'
// for the corresponding Draw or Read binding.
// To exit internal binding mode, use BindUserDraw/ReadFBO().
// While in internal binding mode for Draw/Read, the corresponding
// GetBoundUserDraw/ReadFBO() is undefined, and will trigger ABORT in DEBUG builds.
void BindInternalDrawFBO(GLuint name) {
#ifdef DEBUG
mInInternalBindingMode_DrawFBO = true;
#endif
if (SupportsOffscreenSplit())
raw_fBindFramebuffer(LOCAL_GL_DRAW_FRAMEBUFFER_EXT, name);
else
raw_fBindFramebuffer(LOCAL_GL_FRAMEBUFFER, name);
mInternalBoundDrawFBO = name;
}
void BindInternalReadFBO(GLuint name) {
#ifdef DEBUG
mInInternalBindingMode_ReadFBO = true;
#endif
if (SupportsOffscreenSplit())
raw_fBindFramebuffer(LOCAL_GL_READ_FRAMEBUFFER_EXT, name);
else
raw_fBindFramebuffer(LOCAL_GL_FRAMEBUFFER, name);
mInternalBoundReadFBO = name;
}
void BindInternalFBO(GLuint name) {
BindInternalDrawFBO(name);
BindInternalReadFBO(name);
}
void InitFramebuffers() {
MakeCurrent();
BindUserDrawFBO(0);
BindUserReadFBO(0);
}
GLuint SwapUserDrawFBO(GLuint name) {
GLuint prev = GetUserBoundDrawFBO();
BindUserDrawFBO(name);
return prev;
}
GLuint SwapUserReadFBO(GLuint name) {
GLuint prev = GetUserBoundReadFBO();
BindUserReadFBO(name);
return prev;
}
private:
bool mOffscreenFBOsDirty;
void GetShaderPrecisionFormatNonES2(GLenum shadertype, GLenum precisiontype, GLint* range, GLint* precision) {
switch (precisiontype) {
case LOCAL_GL_LOW_FLOAT:
case LOCAL_GL_MEDIUM_FLOAT:
case LOCAL_GL_HIGH_FLOAT:
// Assume IEEE 754 precision
range[0] = 127;
range[1] = 127;
*precision = 23;
break;
case LOCAL_GL_LOW_INT:
case LOCAL_GL_MEDIUM_INT:
case LOCAL_GL_HIGH_INT:
// Some (most) hardware only supports single-precision floating-point numbers,
// which can accurately represent integers up to +/-16777216
range[0] = 24;
range[1] = 24;
*precision = 0;
break;
}
}
// Do whatever setup is necessary to draw to our offscreen FBO, if it's
// bound.
void BeforeGLDrawCall() {
if (mInternalBoundDrawFBO != mOffscreenDrawFBO)
return;
if (mOffscreenDrawFBO == mOffscreenReadFBO)
return;
mOffscreenFBOsDirty = true;
}
// Do whatever tear-down is necessary after drawing to our offscreen FBO,
// if it's bound.
void AfterGLDrawCall() {
}
// Do whatever setup is necessary to read from our offscreen FBO, if it's
// bound.
void BeforeGLReadCall() {
if (mInternalBoundReadFBO != mOffscreenReadFBO)
return;
if (mOffscreenDrawFBO == mOffscreenReadFBO)
return;
// If we're not dirty, there's no need to blit
if (!mOffscreenFBOsDirty)
return;
const bool scissor = fIsEnabled(LOCAL_GL_SCISSOR_TEST);
if (scissor)
fDisable(LOCAL_GL_SCISSOR_TEST);
// Store current bindings for restoring later
GLuint prevDraw = GetUserBoundDrawFBO();
GLuint prevRead = GetUserBoundReadFBO();
NS_ABORT_IF_FALSE(SupportsOffscreenSplit(), "Doesn't support offscreen split?");
// Manually setting internal bindings, entering internal mode
// Flip read/draw for blitting
BindInternalDrawFBO(mOffscreenReadFBO);
BindInternalReadFBO(mOffscreenDrawFBO);
GLint width = mOffscreenActualSize.width;
GLint height = mOffscreenActualSize.height;
raw_fBlitFramebuffer(0, 0, width, height,
0, 0, width, height,
LOCAL_GL_COLOR_BUFFER_BIT,
LOCAL_GL_NEAREST);
// Reset to emulated user binding, exiting internal mode
BindUserDrawFBO(prevDraw);
BindUserReadFBO(prevRead);
if (scissor)
fEnable(LOCAL_GL_SCISSOR_TEST);
mOffscreenFBOsDirty = false;
}
// Do whatever tear-down is necessary after reading from our offscreen FBO,
// if it's bound.
void AfterGLReadCall() {
}
public:
// Draw call hooks:
void fClear(GLbitfield mask) {
BeforeGLDrawCall();
raw_fClear(mask);
AfterGLDrawCall();
}
void fDrawArrays(GLenum mode, GLint first, GLsizei count) {
BeforeGLDrawCall();
raw_fDrawArrays(mode, first, count);
AfterGLDrawCall();
}
void fDrawElements(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices) {
BeforeGLDrawCall();
raw_fDrawElements(mode, count, type, indices);
AfterGLDrawCall();
}
// Read call hooks:
void fReadPixels(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid *pixels) {
y = FixYValue(y, height);
BeforeGLReadCall();
raw_fReadPixels(x, y, width, height, format, type, pixels);
AfterGLReadCall();
}
void fCopyTexImage2D(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border) {
y = FixYValue(y, height);
if (!IsTextureSizeSafeToPassToDriver(target, width, height)) {
// pass wrong values to cause the GL to generate GL_INVALID_VALUE.
// See bug 737182 and the comment in IsTextureSizeSafeToPassToDriver.
level = -1;
width = -1;
height = -1;
border = -1;
}
BeforeGLReadCall();
raw_fCopyTexImage2D(target, level, internalformat,
x, y, width, height, border);
AfterGLReadCall();
}
void fCopyTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height) {
y = FixYValue(y, height);
BeforeGLReadCall();
raw_fCopyTexSubImage2D(target, level, xoffset, yoffset,
x, y, width, height);
AfterGLReadCall();
}
void ForceDirtyFBOs() {
GLuint draw = SwapUserDrawFBO(0);
BeforeGLDrawCall();
// no-op; just pretend we did something
AfterGLDrawCall();
BindUserDrawFBO(draw);
}
void BlitDirtyFBOs() {
GLuint read = SwapUserReadFBO(0);
BeforeGLReadCall();
// no-op; we just want to make sure the Read FBO is updated if it needs to be
AfterGLReadCall();
BindUserReadFBO(read);
}
// Draw/Read
void fBlitFramebuffer(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter) {
BeforeGLDrawCall();
BeforeGLReadCall();
raw_fBlitFramebuffer(srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, mask, filter);
AfterGLReadCall();
AfterGLDrawCall();
}
virtual bool TextureImageSupportsGetBackingSurface() {
return false;
}
virtual bool RenewSurface() { return false; }
/**`
* Return a valid, allocated TextureImage of |aSize| with
* |aContentType|. The TextureImage's texture is configured to
* use |aWrapMode| (usually GL_CLAMP_TO_EDGE or GL_REPEAT) and by
* default, GL_LINEAR filtering. Specify
* |aFlags=UseNearestFilter| for GL_NEAREST filtering. Specify
* |aFlags=NeedsYFlip| if the image is flipped. Return
* NULL if creating the TextureImage fails.
*
* The returned TextureImage may only be used with this GLContext.
* Attempting to use the returned TextureImage after this
* GLContext is destroyed will result in undefined (and likely
* crashy) behavior.
*/
virtual already_AddRefed<TextureImage>
CreateTextureImage(const nsIntSize& aSize,
TextureImage::ContentType aContentType,
GLenum aWrapMode,
TextureImage::Flags aFlags = TextureImage::NoFlags);
/**
* In EGL we want to use Tiled Texture Images, which we return
* from CreateTextureImage above.
* Inside TiledTextureImage we need to create actual images and to
* prevent infinite recursion we need to differentiate the two
* functions.
**/
virtual already_AddRefed<TextureImage>
TileGenFunc(const nsIntSize& aSize,
TextureImage::ContentType aContentType,
TextureImage::Flags aFlags = TextureImage::NoFlags)
{
return nullptr;
}
/**
* Read the image data contained in aTexture, and return it as an ImageSurface.
* If GL_RGBA is given as the format, a ImageFormatARGB32 surface is returned.
* Not implemented yet:
* If GL_RGB is given as the format, a ImageFormatRGB24 surface is returned.
* If GL_LUMINANCE is given as the format, a ImageFormatA8 surface is returned.
*
* THIS IS EXPENSIVE. It is ridiculously expensive. Only do this
* if you absolutely positively must, and never in any performance
* critical path.
*/
already_AddRefed<gfxImageSurface> ReadTextureImage(GLuint aTexture,
const gfxIntSize& aSize,
GLenum aTextureFormat,
bool aYInvert = false);
already_AddRefed<gfxImageSurface> GetTexImage(GLuint aTexture, bool aYInvert, ShaderProgramType aShader);
/**
* Call ReadPixels into an existing gfxImageSurface.
* The image surface must be using image format RGBA32 or RGB24,
* and must have stride == width*4.
* Note that neither ReadPixelsIntoImageSurface nor
* ReadScreenIntoImageSurface call dest->Flush/MarkDirty.
*/
void THEBES_API ReadPixelsIntoImageSurface(gfxImageSurface* dest);
// Similar to ReadPixelsIntoImageSurface, but pulls from the screen
// instead of the currently bound framebuffer.
void ReadScreenIntoImageSurface(gfxImageSurface* dest);
/**
* Copy a rectangle from one TextureImage into another. The
* source and destination are given in integer coordinates, and
* will be converted to texture coordinates.
*
* For the source texture, the wrap modes DO apply -- it's valid
* to use REPEAT or PAD and expect appropriate behaviour if the source
* rectangle extends beyond its bounds.
*
* For the destination texture, the wrap modes DO NOT apply -- the
* destination will be clipped by the bounds of the texture.
*
* Note: calling this function will cause the following OpenGL state
* to be changed:
*
* - current program
* - framebuffer binding
* - viewport
* - blend state (will be enabled at end)
* - scissor state (will be enabled at end)
* - vertex attrib 0 and 1 (pointer and enable state [enable state will be disabled at exit])
* - array buffer binding (will be 0)
* - active texture (will be 0)
* - texture 0 binding
*/
void BlitTextureImage(TextureImage *aSrc, const nsIntRect& aSrcRect,
TextureImage *aDst, const nsIntRect& aDstRect);
/**
* Creates a RGB/RGBA texture (or uses one provided) and uploads the surface
* contents to it within aSrcRect.
*
* aSrcRect.x/y will be uploaded to 0/0 in the texture, and the size
* of the texture with be aSrcRect.width/height.
*
* If an existing texture is passed through aTexture, it is assumed it
* has already been initialised with glTexImage2D (or this function),
* and that its size is equal to or greater than aSrcRect + aDstPoint.
* You can alternatively set the overwrite flag to true and have a new
* texture memory block allocated.
*
* The aDstPoint parameter is ignored if no texture was provided
* or aOverwrite is true.
*
* \param aSurface Surface to upload.
* \param aDstRegion Region of texture to upload to.
* \param aTexture Texture to use, or 0 to have one created for you.
* \param aOverwrite Over an existing texture with a new one.
* \param aSrcPoint Offset into aSrc where the region's bound's
* TopLeft() sits.
* \param aPixelBuffer Pass true to upload texture data with an
* offset from the base data (generally for pixel buffer objects),
* otherwise textures are upload with an absolute pointer to the data.
* \param aTextureUnit, the texture unit used temporarily to upload the
* surface. This testure may be overridden, clients should not rely on
* the contents of this texture after this call or even on this
* texture unit being active.
* \return Shader program needed to render this texture.
*/
ShaderProgramType UploadSurfaceToTexture(gfxASurface *aSurface,
const nsIntRegion& aDstRegion,
GLuint& aTexture,
bool aOverwrite = false,
const nsIntPoint& aSrcPoint = nsIntPoint(0, 0),
bool aPixelBuffer = false,
GLenum aTextureUnit = LOCAL_GL_TEXTURE0);
void TexImage2D(GLenum target, GLint level, GLint internalformat,
GLsizei width, GLsizei height, GLsizei stride,
GLint pixelsize, GLint border, GLenum format,
GLenum type, const GLvoid *pixels);
void TexSubImage2D(GLenum target, GLint level,
GLint xoffset, GLint yoffset,
GLsizei width, GLsizei height, GLsizei stride,
GLint pixelsize, GLenum format,
GLenum type, const GLvoid* pixels);
/**
* Uses the Khronos GL_EXT_unpack_subimage extension, working around
* quirks in the Tegra implementation of this extension.
*/
void TexSubImage2DWithUnpackSubimageGLES(GLenum target, GLint level,
GLint xoffset, GLint yoffset,
GLsizei width, GLsizei height,
GLsizei stride, GLint pixelsize,
GLenum format, GLenum type,
const GLvoid* pixels);
void TexSubImage2DWithoutUnpackSubimage(GLenum target, GLint level,
GLint xoffset, GLint yoffset,
GLsizei width, GLsizei height,
GLsizei stride, GLint pixelsize,
GLenum format, GLenum type,
const GLvoid* pixels);
/** Helper for DecomposeIntoNoRepeatTriangles
*/
struct RectTriangles {
RectTriangles() { }
// Always pass texture coordinates upright. If you want to flip the
// texture coordinates emitted to the tex_coords array, set flip_y to
// true.
void addRect(GLfloat x0, GLfloat y0, GLfloat x1, GLfloat y1,
GLfloat tx0, GLfloat ty0, GLfloat tx1, GLfloat ty1,
bool flip_y = false);
/**
* these return a float pointer to the start of each array respectively.
* Use it for glVertexAttribPointer calls.
* We can return NULL if we choose to use Vertex Buffer Objects here.
*/
float* vertexPointer() {
return &vertexCoords[0].x;
}
float* texCoordPointer() {
return &texCoords[0].u;
}
unsigned int elements() {
return vertexCoords.Length();
}
typedef struct { GLfloat x,y; } vert_coord;
typedef struct { GLfloat u,v; } tex_coord;
private:
// default is 4 rectangles, each made up of 2 triangles (3 coord vertices each)
nsAutoTArray<vert_coord, 6> vertexCoords;
nsAutoTArray<tex_coord, 6> texCoords;
};
/**
* Decompose drawing the possibly-wrapped aTexCoordRect rectangle
* of a texture of aTexSize into one or more rectangles (represented
* as 2 triangles) and associated tex coordinates, such that
* we don't have to use the REPEAT wrap mode. If aFlipY is true, the
* texture coordinates will be specified vertically flipped.
*
* The resulting triangle vertex coordinates will be in the space of
* (0.0, 0.0) to (1.0, 1.0) -- transform the coordinates appropriately
* if you need a different space.
*
* The resulting vertex coordinates should be drawn using GL_TRIANGLES,
* and rects.numRects * 3 * 6
*/
static void DecomposeIntoNoRepeatTriangles(const nsIntRect& aTexCoordRect,
const nsIntSize& aTexSize,
RectTriangles& aRects,
bool aFlipY = false);
/**
* Known GL extensions that can be queried by
* IsExtensionSupported. The results of this are cached, and as
* such it's safe to use this even in performance critical code.
* If you add to this array, remember to add to the string names
* in GLContext.cpp.
*/
enum GLExtensions {
EXT_framebuffer_object,
ARB_framebuffer_object,
ARB_texture_rectangle,
EXT_bgra,
EXT_texture_format_BGRA8888,
OES_depth24,
OES_depth32,
OES_stencil8,
OES_texture_npot,
OES_depth_texture,
OES_packed_depth_stencil,
IMG_read_format,
EXT_read_format_bgra,
APPLE_client_storage,
ARB_texture_non_power_of_two,
ARB_pixel_buffer_object,
ARB_ES2_compatibility,
OES_texture_float,
ARB_texture_float,
EXT_unpack_subimage,
OES_standard_derivatives,
EXT_texture_filter_anisotropic,
EXT_texture_compression_s3tc,
EXT_texture_compression_dxt1,
ANGLE_texture_compression_dxt3,
ANGLE_texture_compression_dxt5,
AMD_compressed_ATC_texture,
IMG_texture_compression_pvrtc,
EXT_framebuffer_blit,
ANGLE_framebuffer_blit,
EXT_framebuffer_multisample,
ANGLE_framebuffer_multisample,
OES_rgb8_rgba8,
ARB_robustness,
EXT_robustness,
ARB_sync,
OES_EGL_image,
OES_EGL_sync,
OES_EGL_image_external,
EXT_packed_depth_stencil,
Extensions_Max
};
bool IsExtensionSupported(GLExtensions aKnownExtension) const {
return mAvailableExtensions[aKnownExtension];
}
void MarkExtensionUnsupported(GLExtensions aKnownExtension) {
mAvailableExtensions[aKnownExtension] = 0;
}
// Shared code for GL extensions and GLX extensions.
static bool ListHasExtension(const GLubyte *extensions,
const char *extension);
GLint GetMaxTextureImageSize() { return mMaxTextureImageSize; }
void SetFlipped(bool aFlipped) { mFlipped = aFlipped; }
// this should just be a std::bitset, but that ended up breaking
// MacOS X builds; see bug 584919. We can replace this with one
// later on. This is handy to use in WebGL contexts as well,
// so making it public.
template<size_t Size>
struct ExtensionBitset {
ExtensionBitset() {
for (size_t i = 0; i < Size; ++i)
extensions[i] = false;
}
void Load(const char* extStr, const char** extList, bool verbose = false) {
char* exts = strdup(extStr);
if (verbose)
printf_stderr("Extensions: %s\n", exts);
char* cur = exts;
bool done = false;
while (!done) {
char* space = strchr(cur, ' ');
if (space) {
*space = '\0';
} else {
done = true;
}
for (int i = 0; extList[i]; ++i) {
if (strcmp(cur, extList[i]) == 0) {
if (verbose)
printf_stderr("Found extension %s\n", cur);
extensions[i] = 1;
}
}
cur = space + 1;
}
free(exts);
}
bool& operator[](size_t index) {
MOZ_ASSERT(index < Size, "out of range");
return extensions[index];
}
const bool& operator[](size_t index) const {
MOZ_ASSERT(index < Size, "out of range");
return extensions[index];
}
bool extensions[Size];
};
protected:
ExtensionBitset<Extensions_Max> mAvailableExtensions;
public:
/**
* Context reset constants.
* These are used to determine who is guilty when a context reset
* happens.
*/
enum ContextResetARB {
CONTEXT_NO_ERROR = 0,
CONTEXT_GUILTY_CONTEXT_RESET_ARB = 0x8253,
CONTEXT_INNOCENT_CONTEXT_RESET_ARB = 0x8254,
CONTEXT_UNKNOWN_CONTEXT_RESET_ARB = 0x8255
};
bool HasRobustness() {
return mHasRobustness;
}
protected:
bool mInitialized;
bool mIsOffscreen;
bool mIsGLES2;
bool mIsGlobalSharedContext;
bool mHasRobustness;
bool mContextLost;
int32_t mVendor;
int32_t mRenderer;
public:
enum {
DebugEnabled = 1 << 0,
DebugTrace = 1 << 1,
DebugAbortOnError = 1 << 2
};
static uint32_t sDebugMode;
static uint32_t DebugMode() {
#ifdef DEBUG
return sDebugMode;
#else
return 0;
#endif
}
protected:
ContextFormat mCreationFormat;
nsRefPtr<GLContext> mSharedContext;
// The thread on which this context was created.
nsCOMPtr<nsIThread> mOwningThread;
GLContextSymbols mSymbols;
#ifdef DEBUG
// GLDebugMode will check that we don't send call
// to a GLContext that isn't current on the current
// thread.
// Store the current context when binding to thread local
// storage to support DebugMode on an arbitrary thread.
static unsigned sCurrentGLContextTLS;
#endif
void UpdateActualFormat();
ContextFormat mActualFormat;
gfxIntSize mOffscreenSize;
gfxIntSize mOffscreenActualSize;
GLuint mOffscreenTexture;
bool mFlipped;
// lazy-initialized things
GLuint mBlitProgram, mBlitFramebuffer;
void UseBlitProgram();
void SetBlitFramebufferForDestTexture(GLuint aTexture);
// Helper to create/resize an offscreen FBO,
// for offscreen implementations that use FBOs.
// Note that it does -not- clear the resized buffers.
bool ResizeOffscreenFBOs(const ContextFormat& aCF, const gfxIntSize& aSize, const bool aNeedsReadBuffer);
bool ResizeOffscreenFBOs(const gfxIntSize& aSize, const bool aNeedsReadBuffer) {
if (!IsOffscreenSizeAllowed(aSize))
return false;
ContextFormat format(mCreationFormat);
if (format.samples) {
// AA path
if (ResizeOffscreenFBOs(format, aSize, aNeedsReadBuffer))
return true;
NS_WARNING("ResizeOffscreenFBOs failed to resize an AA context! Falling back to no AA...");
format.samples = 0;
}
if (ResizeOffscreenFBOs(format, aSize, aNeedsReadBuffer))
return true;
NS_WARNING("ResizeOffscreenFBOs failed to resize non-AA context!");
return false;
}
struct GLFormats {
GLFormats()
: texColor(0)
, texColorType(0)
, rbColor(0)
, depthStencil(0)
, depth(0)
, stencil(0)
, samples(0)
{}
GLenum texColor;
GLenum texColorType;
GLenum rbColor;
GLenum depthStencil;
GLenum depth;
GLenum stencil;
GLsizei samples;
};
enum ColorByteOrder {
ForceRGBA,
DefaultByteOrder
};
GLFormats ChooseGLFormats(ContextFormat& aCF, GLContext::ColorByteOrder aByteOrder = GLContext::DefaultByteOrder);
void CreateTextureForOffscreen(const GLFormats& aFormats, const gfxIntSize& aSize,
GLuint& texture);
void CreateRenderbuffersForOffscreen(const GLContext::GLFormats& aFormats, const gfxIntSize& aSize,
GLuint& colorMSRB, GLuint& depthRB, GLuint& stencilRB);
bool AssembleOffscreenFBOs(const GLuint colorMSRB,
const GLuint depthRB,
const GLuint stencilRB,
const GLuint texture,
GLuint& drawFBO,
GLuint& readFBO);
void DeleteOffscreenFBOs();
GLuint mOffscreenDrawFBO;
GLuint mOffscreenReadFBO;
GLuint mOffscreenColorRB;
GLuint mOffscreenDepthRB;
GLuint mOffscreenStencilRB;
// Clear to transparent black, with 0 depth and stencil,
// while preserving current ClearColor etc. values.
// Useful for resizing offscreen buffers.
public:
void ClearSafely();
bool WorkAroundDriverBugs() const { return mWorkAroundDriverBugs; }
protected:
nsDataHashtable<nsPtrHashKey<void>, void*> mUserData;
void SetIsGLES2(bool aIsGLES2) {
NS_ASSERTION(!mInitialized, "SetIsGLES2 can only be called before initialization!");
mIsGLES2 = aIsGLES2;
}
bool InitWithPrefix(const char *prefix, bool trygl);
void InitExtensions();
virtual already_AddRefed<TextureImage>
CreateBasicTextureImage(GLuint aTexture,
const nsIntSize& aSize,
GLenum aWrapMode,
TextureImage::ContentType aContentType,
GLContext* aContext,
TextureImage::Flags aFlags = TextureImage::NoFlags);
bool IsOffscreenSizeAllowed(const gfxIntSize& aSize) const {
int32_t biggerDimension = NS_MAX(aSize.width, aSize.height);
int32_t maxAllowed = NS_MIN(mMaxRenderbufferSize, mMaxTextureSize);
return biggerDimension <= maxAllowed;
}
nsTArray<nsIntRect> mViewportStack;
nsTArray<nsIntRect> mScissorStack;
GLint mMaxTextureSize;
GLint mMaxCubeMapTextureSize;
GLint mMaxTextureImageSize;
GLint mMaxRenderbufferSize;
bool mNeedsTextureSizeChecks;
bool mWorkAroundDriverBugs;
bool IsTextureSizeSafeToPassToDriver(GLenum target, GLsizei width, GLsizei height) const {
if (mNeedsTextureSizeChecks) {
// some drivers incorrectly handle some large texture sizes that are below the
// max texture size that they report. So we check ourselves against our own values
// (mMax[CubeMap]TextureSize).
// see bug 737182 for Mac Intel 2D textures
// see bug 684882 for Mac Intel cube map textures
// see bug 814716 for Mesa Nouveau
GLsizei maxSize = target == LOCAL_GL_TEXTURE_CUBE_MAP ||
(target >= LOCAL_GL_TEXTURE_CUBE_MAP_POSITIVE_X &&
target <= LOCAL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z)
? mMaxCubeMapTextureSize
: mMaxTextureSize;
return width <= maxSize && height <= maxSize;
}
return true;
}
public:
/** \returns the first GL error, and guarantees that all GL error flags are cleared,
* i.e. that a subsequent GetError call will return NO_ERROR
*/
GLenum GetAndClearError() {
// the first error is what we want to return
GLenum error = fGetError();
if (error) {
// clear all pending errors
while(fGetError()) {}
}
return error;
}
#ifdef DEBUG
#ifndef MOZ_FUNCTION_NAME
# ifdef __GNUC__
# define MOZ_FUNCTION_NAME __PRETTY_FUNCTION__
# elif defined(_MSC_VER)
# define MOZ_FUNCTION_NAME __FUNCTION__
# else
# define MOZ_FUNCTION_NAME __func__ // defined in C99, supported in various C++ compilers. Just raw function name.
# endif
#endif
protected:
GLenum mGLError;
public:
void BeforeGLCall(const char* glFunction) {
if (DebugMode()) {
GLContext *currentGLContext = NULL;
currentGLContext = (GLContext*)PR_GetThreadPrivate(sCurrentGLContextTLS);
if (DebugMode() & DebugTrace)
printf_stderr("[gl:%p] > %s\n", this, glFunction);
if (this != currentGLContext) {
printf_stderr("Fatal: %s called on non-current context %p. "
"The current context for this thread is %p.\n",
glFunction, this, currentGLContext);
NS_ABORT();
}
}
}
void AfterGLCall(const char* glFunction) {
if (DebugMode()) {
// calling fFinish() immediately after every GL call makes sure that if this GL command crashes,
// the stack trace will actually point to it. Otherwise, OpenGL being an asynchronous API, stack traces
// tend to be meaningless
mSymbols.fFinish();
mGLError = mSymbols.fGetError();
if (DebugMode() & DebugTrace)
printf_stderr("[gl:%p] < %s [0x%04x]\n", this, glFunction, mGLError);
if (mGLError != LOCAL_GL_NO_ERROR) {
printf_stderr("GL ERROR: %s generated GL error %s(0x%04x)\n",
glFunction,
GLErrorToString(mGLError),
mGLError);
if (DebugMode() & DebugAbortOnError)
NS_ABORT();
}
}
}
const char* GLErrorToString(GLenum aError)
{
switch (aError) {
case LOCAL_GL_INVALID_ENUM:
return "GL_INVALID_ENUM";
case LOCAL_GL_INVALID_VALUE:
return "GL_INVALID_VALUE";
case LOCAL_GL_INVALID_OPERATION:
return "GL_INVALID_OPERATION";
case LOCAL_GL_STACK_OVERFLOW:
return "GL_STACK_OVERFLOW";
case LOCAL_GL_STACK_UNDERFLOW:
return "GL_STACK_UNDERFLOW";
case LOCAL_GL_OUT_OF_MEMORY:
return "GL_OUT_OF_MEMORY";
case LOCAL_GL_TABLE_TOO_LARGE:
return "GL_TABLE_TOO_LARGE";
case LOCAL_GL_INVALID_FRAMEBUFFER_OPERATION:
return "GL_INVALID_FRAMEBUFFER_OPERATION";
default:
return "";
}
}
#define BEFORE_GL_CALL do { \
BeforeGLCall(MOZ_FUNCTION_NAME); \
} while (0)
#define AFTER_GL_CALL do { \
AfterGLCall(MOZ_FUNCTION_NAME); \
} while (0)
#else
#define BEFORE_GL_CALL do { } while (0)
#define AFTER_GL_CALL do { } while (0)
#endif
#define ASSERT_SYMBOL_PRESENT(func) \
do {\
MOZ_ASSERT(strstr(MOZ_FUNCTION_NAME, #func) != nullptr, "Mismatched symbol check.");\
if (MOZ_UNLIKELY(!mSymbols.func)) {\
printf_stderr("RUNTIME ASSERT: Uninitialized GL function: %s\n", #func);\
MOZ_CRASH();\
}\
} while (0)
/*** In GL debug mode, we completely override glGetError ***/
GLenum fGetError() {
#ifdef DEBUG
// debug mode ends up eating the error in AFTER_GL_CALL
if (DebugMode()) {
GLenum err = mGLError;
mGLError = LOCAL_GL_NO_ERROR;
return err;
}
#endif
return mSymbols.fGetError();
}
/*** Scissor functions ***/
protected:
GLint FixYValue(GLint y, GLint height)
{
MOZ_ASSERT( !(mIsOffscreen && mFlipped) );
return mFlipped ? ViewportRect().height - (height + y) : y;
}
public:
void fScissor(GLint x, GLint y, GLsizei width, GLsizei height) {
ScissorRect().SetRect(x, y, width, height);
// GL's coordinate system is flipped compared to the one we use in
// OGL Layers (in the Y axis), so we may need to flip our rectangle.
y = FixYValue(y, height);
raw_fScissor(x, y, width, height);
}
nsIntRect& ScissorRect() {
return mScissorStack[mScissorStack.Length()-1];
}
void PushScissorRect() {
nsIntRect copy(ScissorRect());
mScissorStack.AppendElement(copy);
}
void PushScissorRect(const nsIntRect& aRect) {
mScissorStack.AppendElement(aRect);
fScissor(aRect.x, aRect.y, aRect.width, aRect.height);
}
void PopScissorRect() {
if (mScissorStack.Length() < 2) {
NS_WARNING("PopScissorRect with Length < 2!");
return;
}
nsIntRect thisRect = ScissorRect();
mScissorStack.TruncateLength(mScissorStack.Length() - 1);
if (!thisRect.IsEqualInterior(ScissorRect())) {
fScissor(ScissorRect().x, ScissorRect().y,
ScissorRect().width, ScissorRect().height);
}
}
/*** Viewport functions ***/
private:
// only does the glViewport call, no ViewportRect business
void raw_fViewport(GLint x, GLint y, GLsizei width, GLsizei height) {
BEFORE_GL_CALL;
// XXX: Flipping should really happen using the destination height, but
// we use viewport instead and assume viewport size matches the
// destination. If we ever try use partial viewports for layers we need
// to fix this, and remove the assertion.
NS_ASSERTION(!mFlipped || (x == 0 && y == 0), "TODO: Need to flip the viewport rect");
mSymbols.fViewport(x, y, width, height);
AFTER_GL_CALL;
}
public:
void fViewport(GLint x, GLint y, GLsizei width, GLsizei height) {
ViewportRect().SetRect(x, y, width, height);
raw_fViewport(x, y, width, height);
}
nsIntRect& ViewportRect() {
return mViewportStack[mViewportStack.Length()-1];
}
void PushViewportRect() {
nsIntRect copy(ViewportRect());
mViewportStack.AppendElement(copy);
}
void PushViewportRect(const nsIntRect& aRect) {
mViewportStack.AppendElement(aRect);
raw_fViewport(aRect.x, aRect.y, aRect.width, aRect.height);
}
void PopViewportRect() {
if (mViewportStack.Length() < 2) {
NS_WARNING("PopViewportRect with Length < 2!");
return;
}
nsIntRect thisRect = ViewportRect();
mViewportStack.TruncateLength(mViewportStack.Length() - 1);
if (!thisRect.IsEqualInterior(ViewportRect())) {
raw_fViewport(ViewportRect().x, ViewportRect().y,
ViewportRect().width, ViewportRect().height);
}
}
/*** other GL functions ***/
void fActiveTexture(GLenum texture) {
BEFORE_GL_CALL;
mSymbols.fActiveTexture(texture);
AFTER_GL_CALL;
}
void fAttachShader(GLuint program, GLuint shader) {
BEFORE_GL_CALL;
mSymbols.fAttachShader(program, shader);
AFTER_GL_CALL;
}
void fBindAttribLocation(GLuint program, GLuint index, const GLchar* name) {
BEFORE_GL_CALL;
mSymbols.fBindAttribLocation(program, index, name);
AFTER_GL_CALL;
}
void fBindBuffer(GLenum target, GLuint buffer) {
BEFORE_GL_CALL;
mSymbols.fBindBuffer(target, buffer);
AFTER_GL_CALL;
}
void fBindTexture(GLenum target, GLuint texture) {
BEFORE_GL_CALL;
mSymbols.fBindTexture(target, texture);
AFTER_GL_CALL;
}
void fBlendColor(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha) {
BEFORE_GL_CALL;
mSymbols.fBlendColor(red, green, blue, alpha);
AFTER_GL_CALL;
}
void fBlendEquation(GLenum mode) {
BEFORE_GL_CALL;
mSymbols.fBlendEquation(mode);
AFTER_GL_CALL;
}
void fBlendEquationSeparate(GLenum modeRGB, GLenum modeAlpha) {
BEFORE_GL_CALL;
mSymbols.fBlendEquationSeparate(modeRGB, modeAlpha);
AFTER_GL_CALL;
}
void fBlendFunc(GLenum sfactor, GLenum dfactor) {
BEFORE_GL_CALL;
mSymbols.fBlendFunc(sfactor, dfactor);
AFTER_GL_CALL;
}
void fBlendFuncSeparate(GLenum sfactorRGB, GLenum dfactorRGB, GLenum sfactorAlpha, GLenum dfactorAlpha) {
BEFORE_GL_CALL;
mSymbols.fBlendFuncSeparate(sfactorRGB, dfactorRGB, sfactorAlpha, dfactorAlpha);
AFTER_GL_CALL;
}
private:
void raw_fBufferData(GLenum target, GLsizeiptr size, const GLvoid* data, GLenum usage) {
BEFORE_GL_CALL;
mSymbols.fBufferData(target, size, data, usage);
AFTER_GL_CALL;
}
public:
void fBufferData(GLenum target, GLsizeiptr size, const GLvoid* data, GLenum usage) {
raw_fBufferData(target, size, data, usage);
// bug 744888
if (WorkAroundDriverBugs() &&
!data &&
Vendor() == VendorNVIDIA)
{
char c = 0;
fBufferSubData(target, size-1, 1, &c);
}
}
void fBufferSubData(GLenum target, GLintptr offset, GLsizeiptr size, const GLvoid* data) {
BEFORE_GL_CALL;
mSymbols.fBufferSubData(target, offset, size, data);
AFTER_GL_CALL;
}
private:
void raw_fClear(GLbitfield mask) {
BEFORE_GL_CALL;
mSymbols.fClear(mask);
AFTER_GL_CALL;
}
public:
void fClearColor(GLclampf r, GLclampf g, GLclampf b, GLclampf a) {
BEFORE_GL_CALL;
mSymbols.fClearColor(r, g, b, a);
AFTER_GL_CALL;
}
void fClearStencil(GLint s) {
BEFORE_GL_CALL;
mSymbols.fClearStencil(s);
AFTER_GL_CALL;
}
void fColorMask(realGLboolean red, realGLboolean green, realGLboolean blue, realGLboolean alpha) {
BEFORE_GL_CALL;
mSymbols.fColorMask(red, green, blue, alpha);
AFTER_GL_CALL;
}
void fCompressedTexImage2D(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const GLvoid *pixels) {
BEFORE_GL_CALL;
mSymbols.fCompressedTexImage2D(target, level, internalformat, width, height, border, imageSize, pixels);
AFTER_GL_CALL;
}
void fCompressedTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const GLvoid *pixels) {
BEFORE_GL_CALL;
mSymbols.fCompressedTexSubImage2D(target, level, xoffset, yoffset, width, height, format, imageSize, pixels);
AFTER_GL_CALL;
}
void fCullFace(GLenum mode) {
BEFORE_GL_CALL;
mSymbols.fCullFace(mode);
AFTER_GL_CALL;
}
void fDetachShader(GLuint program, GLuint shader) {
BEFORE_GL_CALL;
mSymbols.fDetachShader(program, shader);
AFTER_GL_CALL;
}
void fDepthFunc(GLenum func) {
BEFORE_GL_CALL;
mSymbols.fDepthFunc(func);
AFTER_GL_CALL;
}
void fDepthMask(realGLboolean flag) {
BEFORE_GL_CALL;
mSymbols.fDepthMask(flag);
AFTER_GL_CALL;
}
void fDisable(GLenum capability) {
BEFORE_GL_CALL;
mSymbols.fDisable(capability);
AFTER_GL_CALL;
}
void fDisableVertexAttribArray(GLuint index) {
BEFORE_GL_CALL;
mSymbols.fDisableVertexAttribArray(index);
AFTER_GL_CALL;
}
private:
void raw_fDrawArrays(GLenum mode, GLint first, GLsizei count) {
BEFORE_GL_CALL;
mSymbols.fDrawArrays(mode, first, count);
AFTER_GL_CALL;
}
void raw_fDrawElements(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices) {
BEFORE_GL_CALL;
mSymbols.fDrawElements(mode, count, type, indices);
AFTER_GL_CALL;
}
public:
void fEnable(GLenum capability) {
BEFORE_GL_CALL;
mSymbols.fEnable(capability);
AFTER_GL_CALL;
}
void fEnableVertexAttribArray(GLuint index) {
BEFORE_GL_CALL;
mSymbols.fEnableVertexAttribArray(index);
AFTER_GL_CALL;
}
void fFinish() {
BEFORE_GL_CALL;
mSymbols.fFinish();
AFTER_GL_CALL;
}
void fFlush() {
BEFORE_GL_CALL;
mSymbols.fFlush();
AFTER_GL_CALL;
}
void fFrontFace(GLenum face) {
BEFORE_GL_CALL;
mSymbols.fFrontFace(face);
AFTER_GL_CALL;
}
void fGetActiveAttrib(GLuint program, GLuint index, GLsizei maxLength, GLsizei* length, GLint* size, GLenum* type, GLchar* name) {
BEFORE_GL_CALL;
mSymbols.fGetActiveAttrib(program, index, maxLength, length, size, type, name);
AFTER_GL_CALL;
}
void fGetActiveUniform(GLuint program, GLuint index, GLsizei maxLength, GLsizei* length, GLint* size, GLenum* type, GLchar* name) {
BEFORE_GL_CALL;
mSymbols.fGetActiveUniform(program, index, maxLength, length, size, type, name);
AFTER_GL_CALL;
}
void fGetAttachedShaders(GLuint program, GLsizei maxCount, GLsizei* count, GLuint* shaders) {
BEFORE_GL_CALL;
mSymbols.fGetAttachedShaders(program, maxCount, count, shaders);
AFTER_GL_CALL;
}
GLint fGetAttribLocation (GLuint program, const GLchar* name) {
BEFORE_GL_CALL;
GLint retval = mSymbols.fGetAttribLocation(program, name);
AFTER_GL_CALL;
return retval;
}
private:
void raw_fGetIntegerv(GLenum pname, GLint *params) {
BEFORE_GL_CALL;
mSymbols.fGetIntegerv(pname, params);
AFTER_GL_CALL;
}
public:
void GetUIntegerv(GLenum pname, GLuint *params) {
fGetIntegerv(pname, reinterpret_cast<GLint*>(params));
}
void fGetFloatv(GLenum pname, GLfloat *params) {
BEFORE_GL_CALL;
mSymbols.fGetFloatv(pname, params);
AFTER_GL_CALL;
}
void fGetBooleanv(GLenum pname, realGLboolean *params) {
BEFORE_GL_CALL;
mSymbols.fGetBooleanv(pname, params);
AFTER_GL_CALL;
}
void fGetBufferParameteriv(GLenum target, GLenum pname, GLint* params) {
BEFORE_GL_CALL;
mSymbols.fGetBufferParameteriv(target, pname, params);
AFTER_GL_CALL;
}
void fGenerateMipmap(GLenum target) {
BEFORE_GL_CALL;
mSymbols.fGenerateMipmap(target);
AFTER_GL_CALL;
}
void fGetProgramiv(GLuint program, GLenum pname, GLint* param) {
BEFORE_GL_CALL;
mSymbols.fGetProgramiv(program, pname, param);
AFTER_GL_CALL;
}
void fGetProgramInfoLog(GLuint program, GLsizei bufSize, GLsizei* length, GLchar* infoLog) {
BEFORE_GL_CALL;
mSymbols.fGetProgramInfoLog(program, bufSize, length, infoLog);
AFTER_GL_CALL;
}
void fTexParameteri(GLenum target, GLenum pname, GLint param) {
BEFORE_GL_CALL;
mSymbols.fTexParameteri(target, pname, param);
AFTER_GL_CALL;
}
void fTexParameterf(GLenum target, GLenum pname, GLfloat param) {
BEFORE_GL_CALL;
mSymbols.fTexParameterf(target, pname, param);
AFTER_GL_CALL;
}
const GLubyte* fGetString(GLenum name) {
BEFORE_GL_CALL;
const GLubyte *result = mSymbols.fGetString(name);
AFTER_GL_CALL;
return result;
}
void fGetTexImage(GLenum target, GLint level, GLenum format, GLenum type, GLvoid *img) {
BEFORE_GL_CALL;
ASSERT_SYMBOL_PRESENT(fGetTexImage);
mSymbols.fGetTexImage(target, level, format, type, img);
AFTER_GL_CALL;
}
void fGetTexLevelParameteriv(GLenum target, GLint level, GLenum pname, GLint *params)
{
BEFORE_GL_CALL;
ASSERT_SYMBOL_PRESENT(fGetTexLevelParameteriv);
mSymbols.fGetTexLevelParameteriv(target, level, pname, params);
AFTER_GL_CALL;
}
void fGetTexParameterfv(GLenum target, GLenum pname, const GLfloat *params) {
BEFORE_GL_CALL;
mSymbols.fGetTexParameterfv(target, pname, params);
AFTER_GL_CALL;
}
void fGetTexParameteriv(GLenum target, GLenum pname, const GLint *params) {
BEFORE_GL_CALL;
mSymbols.fGetTexParameteriv(target, pname, params);
AFTER_GL_CALL;
}
void fGetUniformfv(GLuint program, GLint location, GLfloat* params) {
BEFORE_GL_CALL;
mSymbols.fGetUniformfv(program, location, params);
AFTER_GL_CALL;
}
void fGetUniformiv(GLuint program, GLint location, GLint* params) {
BEFORE_GL_CALL;
mSymbols.fGetUniformiv(program, location, params);
AFTER_GL_CALL;
}
GLint fGetUniformLocation (GLint programObj, const GLchar* name) {
BEFORE_GL_CALL;
GLint retval = mSymbols.fGetUniformLocation(programObj, name);
AFTER_GL_CALL;
return retval;
}
void fGetVertexAttribfv(GLuint index, GLenum pname, GLfloat* retval) {
BEFORE_GL_CALL;
mSymbols.fGetVertexAttribfv(index, pname, retval);
AFTER_GL_CALL;
}
void fGetVertexAttribiv(GLuint index, GLenum pname, GLint* retval) {
BEFORE_GL_CALL;
mSymbols.fGetVertexAttribiv(index, pname, retval);
AFTER_GL_CALL;
}
void fGetVertexAttribPointerv(GLuint index, GLenum pname, GLvoid** retval) {
BEFORE_GL_CALL;
mSymbols.fGetVertexAttribPointerv(index, pname, retval);
AFTER_GL_CALL;
}
void fHint(GLenum target, GLenum mode) {
BEFORE_GL_CALL;
mSymbols.fHint(target, mode);
AFTER_GL_CALL;
}
realGLboolean fIsBuffer(GLuint buffer) {
BEFORE_GL_CALL;
realGLboolean retval = mSymbols.fIsBuffer(buffer);
AFTER_GL_CALL;
return retval;
}
realGLboolean fIsEnabled(GLenum capability) {
BEFORE_GL_CALL;
realGLboolean retval = mSymbols.fIsEnabled(capability);
AFTER_GL_CALL;
return retval;
}
realGLboolean fIsProgram(GLuint program) {
BEFORE_GL_CALL;
realGLboolean retval = mSymbols.fIsProgram(program);
AFTER_GL_CALL;
return retval;
}
realGLboolean fIsShader(GLuint shader) {
BEFORE_GL_CALL;
realGLboolean retval = mSymbols.fIsShader(shader);
AFTER_GL_CALL;
return retval;
}
realGLboolean fIsTexture(GLuint texture) {
BEFORE_GL_CALL;
realGLboolean retval = mSymbols.fIsTexture(texture);
AFTER_GL_CALL;
return retval;
}
void fLineWidth(GLfloat width) {
BEFORE_GL_CALL;
mSymbols.fLineWidth(width);
AFTER_GL_CALL;
}
void fLinkProgram(GLuint program) {
BEFORE_GL_CALL;
mSymbols.fLinkProgram(program);
AFTER_GL_CALL;
}
void fPixelStorei(GLenum pname, GLint param) {
BEFORE_GL_CALL;
mSymbols.fPixelStorei(pname, param);
AFTER_GL_CALL;
}
void fPointParameterf(GLenum pname, GLfloat param) {
BEFORE_GL_CALL;
mSymbols.fPointParameterf(pname, param);
AFTER_GL_CALL;
}
void fPolygonOffset(GLfloat factor, GLfloat bias) {
BEFORE_GL_CALL;
mSymbols.fPolygonOffset(factor, bias);
AFTER_GL_CALL;
}
void fReadBuffer(GLenum mode) {
BEFORE_GL_CALL;
mSymbols.fReadBuffer(mode);
AFTER_GL_CALL;
}
private:
void raw_fReadPixels(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid *pixels) {
BEFORE_GL_CALL;
mSymbols.fReadPixels(x, FixYValue(y, height), width, height, format, type, pixels);
AFTER_GL_CALL;
}
public:
void fSampleCoverage(GLclampf value, realGLboolean invert) {
BEFORE_GL_CALL;
mSymbols.fSampleCoverage(value, invert);
AFTER_GL_CALL;
}
private:
void raw_fScissor(GLint x, GLint y, GLsizei width, GLsizei height) {
BEFORE_GL_CALL;
mSymbols.fScissor(x, y, width, height);
AFTER_GL_CALL;
}
public:
void fStencilFunc(GLenum func, GLint ref, GLuint mask) {
BEFORE_GL_CALL;
mSymbols.fStencilFunc(func, ref, mask);
AFTER_GL_CALL;
}
void fStencilFuncSeparate(GLenum frontfunc, GLenum backfunc, GLint ref, GLuint mask) {
BEFORE_GL_CALL;
mSymbols.fStencilFuncSeparate(frontfunc, backfunc, ref, mask);
AFTER_GL_CALL;
}
void fStencilMask(GLuint mask) {
BEFORE_GL_CALL;
mSymbols.fStencilMask(mask);
AFTER_GL_CALL;
}
void fStencilMaskSeparate(GLenum face, GLuint mask) {
BEFORE_GL_CALL;
mSymbols.fStencilMaskSeparate(face, mask);
AFTER_GL_CALL;
}
void fStencilOp(GLenum fail, GLenum zfail, GLenum zpass) {
BEFORE_GL_CALL;
mSymbols.fStencilOp(fail, zfail, zpass);
AFTER_GL_CALL;
}
void fStencilOpSeparate(GLenum face, GLenum sfail, GLenum dpfail, GLenum dppass) {
BEFORE_GL_CALL;
mSymbols.fStencilOpSeparate(face, sfail, dpfail, dppass);
AFTER_GL_CALL;
}
private:
void raw_fTexImage2D(GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *pixels) {
BEFORE_GL_CALL;
mSymbols.fTexImage2D(target, level, internalformat, width, height, border, format, type, pixels);
AFTER_GL_CALL;
}
public:
void fTexImage2D(GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *pixels) {
if (!IsTextureSizeSafeToPassToDriver(target, width, height)) {
// pass wrong values to cause the GL to generate GL_INVALID_VALUE.
// See bug 737182 and the comment in IsTextureSizeSafeToPassToDriver.
level = -1;
width = -1;
height = -1;
border = -1;
}
raw_fTexImage2D(target, level, internalformat, width, height, border, format, type, pixels);
}
void fTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid* pixels) {
BEFORE_GL_CALL;
mSymbols.fTexSubImage2D(target, level, xoffset, yoffset, width, height, format, type, pixels);
AFTER_GL_CALL;
}
void fUniform1f(GLint location, GLfloat v0) {
BEFORE_GL_CALL;
mSymbols.fUniform1f(location, v0);
AFTER_GL_CALL;
}
void fUniform1fv(GLint location, GLsizei count, const GLfloat* value) {
BEFORE_GL_CALL;
mSymbols.fUniform1fv(location, count, value);
AFTER_GL_CALL;
}
void fUniform1i(GLint location, GLint v0) {
BEFORE_GL_CALL;
mSymbols.fUniform1i(location, v0);
AFTER_GL_CALL;
}
void fUniform1iv(GLint location, GLsizei count, const GLint* value) {
BEFORE_GL_CALL;
mSymbols.fUniform1iv(location, count, value);
AFTER_GL_CALL;
}
void fUniform2f(GLint location, GLfloat v0, GLfloat v1) {
BEFORE_GL_CALL;
mSymbols.fUniform2f(location, v0, v1);
AFTER_GL_CALL;
}
void fUniform2fv(GLint location, GLsizei count, const GLfloat* value) {
BEFORE_GL_CALL;
mSymbols.fUniform2fv(location, count, value);
AFTER_GL_CALL;
}
void fUniform2i(GLint location, GLint v0, GLint v1) {
BEFORE_GL_CALL;
mSymbols.fUniform2i(location, v0, v1);
AFTER_GL_CALL;
}
void fUniform2iv(GLint location, GLsizei count, const GLint* value) {
BEFORE_GL_CALL;
mSymbols.fUniform2iv(location, count, value);
AFTER_GL_CALL;
}
void fUniform3f(GLint location, GLfloat v0, GLfloat v1, GLfloat v2) {
BEFORE_GL_CALL;
mSymbols.fUniform3f(location, v0, v1, v2);
AFTER_GL_CALL;
}
void fUniform3fv(GLint location, GLsizei count, const GLfloat* value) {
BEFORE_GL_CALL;
mSymbols.fUniform3fv(location, count, value);
AFTER_GL_CALL;
}
void fUniform3i(GLint location, GLint v0, GLint v1, GLint v2) {
BEFORE_GL_CALL;
mSymbols.fUniform3i(location, v0, v1, v2);
AFTER_GL_CALL;
}
void fUniform3iv(GLint location, GLsizei count, const GLint* value) {
BEFORE_GL_CALL;
mSymbols.fUniform3iv(location, count, value);
AFTER_GL_CALL;
}
void fUniform4f(GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3) {
BEFORE_GL_CALL;
mSymbols.fUniform4f(location, v0, v1, v2, v3);
AFTER_GL_CALL;
}
void fUniform4fv(GLint location, GLsizei count, const GLfloat* value) {
BEFORE_GL_CALL;
mSymbols.fUniform4fv(location, count, value);
AFTER_GL_CALL;
}
void fUniform4i(GLint location, GLint v0, GLint v1, GLint v2, GLint v3) {
BEFORE_GL_CALL;
mSymbols.fUniform4i(location, v0, v1, v2, v3);
AFTER_GL_CALL;
}
void fUniform4iv(GLint location, GLsizei count, const GLint* value) {
BEFORE_GL_CALL;
mSymbols.fUniform4iv(location, count, value);
AFTER_GL_CALL;
}
void fUniformMatrix2fv(GLint location, GLsizei count, realGLboolean transpose, const GLfloat* value) {
BEFORE_GL_CALL;
mSymbols.fUniformMatrix2fv(location, count, transpose, value);
AFTER_GL_CALL;
}
void fUniformMatrix3fv(GLint location, GLsizei count, realGLboolean transpose, const GLfloat* value) {
BEFORE_GL_CALL;
mSymbols.fUniformMatrix3fv(location, count, transpose, value);
AFTER_GL_CALL;
}
void fUniformMatrix4fv(GLint location, GLsizei count, realGLboolean transpose, const GLfloat* value) {
BEFORE_GL_CALL;
mSymbols.fUniformMatrix4fv(location, count, transpose, value);
AFTER_GL_CALL;
}
void fUseProgram(GLuint program) {
BEFORE_GL_CALL;
mSymbols.fUseProgram(program);
AFTER_GL_CALL;
}
void fValidateProgram(GLuint program) {
BEFORE_GL_CALL;
mSymbols.fValidateProgram(program);
AFTER_GL_CALL;
}
void fVertexAttribPointer(GLuint index, GLint size, GLenum type, realGLboolean normalized, GLsizei stride, const GLvoid* pointer) {
BEFORE_GL_CALL;
mSymbols.fVertexAttribPointer(index, size, type, normalized, stride, pointer);
AFTER_GL_CALL;
}
void fVertexAttrib1f(GLuint index, GLfloat x) {
BEFORE_GL_CALL;
mSymbols.fVertexAttrib1f(index, x);
AFTER_GL_CALL;
}
void fVertexAttrib2f(GLuint index, GLfloat x, GLfloat y) {
BEFORE_GL_CALL;
mSymbols.fVertexAttrib2f(index, x, y);
AFTER_GL_CALL;
}
void fVertexAttrib3f(GLuint index, GLfloat x, GLfloat y, GLfloat z) {
BEFORE_GL_CALL;
mSymbols.fVertexAttrib3f(index, x, y, z);
AFTER_GL_CALL;
}
void fVertexAttrib4f(GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w) {
BEFORE_GL_CALL;
mSymbols.fVertexAttrib4f(index, x, y, z, w);
AFTER_GL_CALL;
}
void fVertexAttrib1fv(GLuint index, const GLfloat* v) {
BEFORE_GL_CALL;
mSymbols.fVertexAttrib1fv(index, v);
AFTER_GL_CALL;
}
void fVertexAttrib2fv(GLuint index, const GLfloat* v) {
BEFORE_GL_CALL;
mSymbols.fVertexAttrib2fv(index, v);
AFTER_GL_CALL;
}
void fVertexAttrib3fv(GLuint index, const GLfloat* v) {
BEFORE_GL_CALL;
mSymbols.fVertexAttrib3fv(index, v);
AFTER_GL_CALL;
}
void fVertexAttrib4fv(GLuint index, const GLfloat* v) {
BEFORE_GL_CALL;
mSymbols.fVertexAttrib4fv(index, v);
AFTER_GL_CALL;
}
void fCompileShader(GLuint shader) {
BEFORE_GL_CALL;
mSymbols.fCompileShader(shader);
AFTER_GL_CALL;
}
private:
void raw_fCopyTexImage2D(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border) {
BEFORE_GL_CALL;
mSymbols.fCopyTexImage2D(target, level, internalformat, x, y, width, height, border);
AFTER_GL_CALL;
}
void raw_fCopyTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height) {
BEFORE_GL_CALL;
mSymbols.fCopyTexSubImage2D(target, level, xoffset, yoffset, x, y, width, height);
AFTER_GL_CALL;
}
public:
void fGetShaderiv(GLuint shader, GLenum pname, GLint* param) {
BEFORE_GL_CALL;
mSymbols.fGetShaderiv(shader, pname, param);
AFTER_GL_CALL;
}
void fGetShaderInfoLog(GLuint shader, GLsizei bufSize, GLsizei* length, GLchar* infoLog) {
BEFORE_GL_CALL;
mSymbols.fGetShaderInfoLog(shader, bufSize, length, infoLog);
AFTER_GL_CALL;
}
private:
void raw_fGetShaderPrecisionFormat(GLenum shadertype, GLenum precisiontype, GLint* range, GLint* precision) {
MOZ_ASSERT(mIsGLES2);
BEFORE_GL_CALL;
ASSERT_SYMBOL_PRESENT(fGetShaderPrecisionFormat);
mSymbols.fGetShaderPrecisionFormat(shadertype, precisiontype, range, precision);
AFTER_GL_CALL;
}
public:
void fGetShaderPrecisionFormat(GLenum shadertype, GLenum precisiontype, GLint* range, GLint* precision) {
if (mIsGLES2) {
raw_fGetShaderPrecisionFormat(shadertype, precisiontype, range, precision);
} else {
// Fall back to automatic values because almost all desktop hardware supports the OpenGL standard precisions.
GetShaderPrecisionFormatNonES2(shadertype, precisiontype, range, precision);
}
}
void fGetShaderSource(GLint obj, GLsizei maxLength, GLsizei* length, GLchar* source) {
BEFORE_GL_CALL;
mSymbols.fGetShaderSource(obj, maxLength, length, source);
AFTER_GL_CALL;
}
void fShaderSource(GLuint shader, GLsizei count, const GLchar** strings, const GLint* lengths) {
BEFORE_GL_CALL;
mSymbols.fShaderSource(shader, count, strings, lengths);
AFTER_GL_CALL;
}
private:
void raw_fBindFramebuffer(GLenum target, GLuint framebuffer) {
BEFORE_GL_CALL;
mSymbols.fBindFramebuffer(target, framebuffer);
AFTER_GL_CALL;
}
public:
void fBindRenderbuffer(GLenum target, GLuint renderbuffer) {
BEFORE_GL_CALL;
mSymbols.fBindRenderbuffer(target, renderbuffer);
AFTER_GL_CALL;
}
GLenum fCheckFramebufferStatus (GLenum target) {
BEFORE_GL_CALL;
GLenum retval = mSymbols.fCheckFramebufferStatus(target);
AFTER_GL_CALL;
return retval;
}
void fFramebufferRenderbuffer(GLenum target, GLenum attachmentPoint, GLenum renderbufferTarget, GLuint renderbuffer) {
BEFORE_GL_CALL;
mSymbols.fFramebufferRenderbuffer(target, attachmentPoint, renderbufferTarget, renderbuffer);
AFTER_GL_CALL;
}
void fFramebufferTexture2D(GLenum target, GLenum attachmentPoint, GLenum textureTarget, GLuint texture, GLint level) {
BEFORE_GL_CALL;
mSymbols.fFramebufferTexture2D(target, attachmentPoint, textureTarget, texture, level);
AFTER_GL_CALL;
}
void fGetFramebufferAttachmentParameteriv(GLenum target, GLenum attachment, GLenum pname, GLint* value) {
BEFORE_GL_CALL;
mSymbols.fGetFramebufferAttachmentParameteriv(target, attachment, pname, value);
AFTER_GL_CALL;
}
void fGetRenderbufferParameteriv(GLenum target, GLenum pname, GLint* value) {
BEFORE_GL_CALL;
mSymbols.fGetRenderbufferParameteriv(target, pname, value);
AFTER_GL_CALL;
}
realGLboolean fIsFramebuffer (GLuint framebuffer) {
BEFORE_GL_CALL;
realGLboolean retval = mSymbols.fIsFramebuffer(framebuffer);
AFTER_GL_CALL;
return retval;
}
private:
void raw_fBlitFramebuffer(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter) {
BEFORE_GL_CALL;
ASSERT_SYMBOL_PRESENT(fBlitFramebuffer);
mSymbols.fBlitFramebuffer(srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, mask, filter);
AFTER_GL_CALL;
}
public:
realGLboolean fIsRenderbuffer (GLuint renderbuffer) {
BEFORE_GL_CALL;
realGLboolean retval = mSymbols.fIsRenderbuffer(renderbuffer);
AFTER_GL_CALL;
return retval;
}
void fRenderbufferStorage(GLenum target, GLenum internalFormat, GLsizei width, GLsizei height) {
BEFORE_GL_CALL;
mSymbols.fRenderbufferStorage(target, internalFormat, width, height);
AFTER_GL_CALL;
}
void fRenderbufferStorageMultisample(GLenum target, GLsizei samples, GLenum internalFormat, GLsizei width, GLsizei height) {
BEFORE_GL_CALL;
ASSERT_SYMBOL_PRESENT(fRenderbufferStorageMultisample);
mSymbols.fRenderbufferStorageMultisample(target, samples, internalFormat, width, height);
AFTER_GL_CALL;
}
private:
void raw_fDepthRange(GLclampf a, GLclampf b) {
MOZ_ASSERT(!mIsGLES2);
BEFORE_GL_CALL;
ASSERT_SYMBOL_PRESENT(fDepthRange);
mSymbols.fDepthRange(a, b);
AFTER_GL_CALL;
}
void raw_fDepthRangef(GLclampf a, GLclampf b) {
MOZ_ASSERT(mIsGLES2);
BEFORE_GL_CALL;
ASSERT_SYMBOL_PRESENT(fDepthRangef);
mSymbols.fDepthRangef(a, b);
AFTER_GL_CALL;
}
void raw_fClearDepth(GLclampf v) {
MOZ_ASSERT(!mIsGLES2);
BEFORE_GL_CALL;
ASSERT_SYMBOL_PRESENT(fClearDepth);
mSymbols.fClearDepth(v);
AFTER_GL_CALL;
}
void raw_fClearDepthf(GLclampf v) {
MOZ_ASSERT(mIsGLES2);
BEFORE_GL_CALL;
ASSERT_SYMBOL_PRESENT(fClearDepthf);
mSymbols.fClearDepthf(v);
AFTER_GL_CALL;
}
public:
void fDepthRange(GLclampf a, GLclampf b) {
if (mIsGLES2) {
raw_fDepthRangef(a, b);
} else {
raw_fDepthRange(a, b);
}
}
void fClearDepth(GLclampf v) {
if (mIsGLES2) {
raw_fClearDepthf(v);
} else {
raw_fClearDepth(v);
}
}
void* fMapBuffer(GLenum target, GLenum access) {
BEFORE_GL_CALL;
ASSERT_SYMBOL_PRESENT(fMapBuffer);
void *ret = mSymbols.fMapBuffer(target, access);
AFTER_GL_CALL;
return ret;
}
realGLboolean fUnmapBuffer(GLenum target) {
BEFORE_GL_CALL;
ASSERT_SYMBOL_PRESENT(fUnmapBuffer);
realGLboolean ret = mSymbols.fUnmapBuffer(target);
AFTER_GL_CALL;
return ret;
}
private:
#ifdef DEBUG
GLContext *TrackingContext() {
GLContext *tip = this;
while (tip->mSharedContext)
tip = tip->mSharedContext;
return tip;
}
#define TRACKING_CONTEXT(a) do { TrackingContext()->a; } while (0)
#else
#define TRACKING_CONTEXT(a) do {} while (0)
#endif
GLuint GLAPIENTRY raw_fCreateProgram() {
BEFORE_GL_CALL;
GLuint ret = mSymbols.fCreateProgram();
AFTER_GL_CALL;
return ret;
}
GLuint GLAPIENTRY raw_fCreateShader(GLenum t) {
BEFORE_GL_CALL;
GLuint ret = mSymbols.fCreateShader(t);
AFTER_GL_CALL;
return ret;
}
void GLAPIENTRY raw_fGenBuffers(GLsizei n, GLuint* names) {
BEFORE_GL_CALL;
mSymbols.fGenBuffers(n, names);
AFTER_GL_CALL;
}
void GLAPIENTRY raw_fGenFramebuffers(GLsizei n, GLuint* names) {
BEFORE_GL_CALL;
mSymbols.fGenFramebuffers(n, names);
AFTER_GL_CALL;
}
void GLAPIENTRY raw_fGenRenderbuffers(GLsizei n, GLuint* names) {
BEFORE_GL_CALL;
mSymbols.fGenRenderbuffers(n, names);
AFTER_GL_CALL;
}
void GLAPIENTRY raw_fGenTextures(GLsizei n, GLuint* names) {
BEFORE_GL_CALL;
mSymbols.fGenTextures(n, names);
AFTER_GL_CALL;
}
public:
GLuint fCreateProgram() {
GLuint ret = raw_fCreateProgram();
TRACKING_CONTEXT(CreatedProgram(this, ret));
return ret;
}
GLuint fCreateShader(GLenum t) {
GLuint ret = raw_fCreateShader(t);
TRACKING_CONTEXT(CreatedShader(this, ret));
return ret;
}
void fGenBuffers(GLsizei n, GLuint* names) {
raw_fGenBuffers(n, names);
TRACKING_CONTEXT(CreatedBuffers(this, n, names));
}
void fGenFramebuffers(GLsizei n, GLuint* names) {
raw_fGenFramebuffers(n, names);
TRACKING_CONTEXT(CreatedFramebuffers(this, n, names));
}
void fGenRenderbuffers(GLsizei n, GLuint* names) {
raw_fGenRenderbuffers(n, names);
TRACKING_CONTEXT(CreatedRenderbuffers(this, n, names));
}
void fGenTextures(GLsizei n, GLuint* names) {
raw_fGenTextures(n, names);
TRACKING_CONTEXT(CreatedTextures(this, n, names));
}
private:
void GLAPIENTRY raw_fDeleteProgram(GLuint program) {
BEFORE_GL_CALL;
mSymbols.fDeleteProgram(program);
AFTER_GL_CALL;
}
void GLAPIENTRY raw_fDeleteShader(GLuint shader) {
BEFORE_GL_CALL;
mSymbols.fDeleteShader(shader);
AFTER_GL_CALL;
}
void GLAPIENTRY raw_fDeleteBuffers(GLsizei n, GLuint *names) {
BEFORE_GL_CALL;
mSymbols.fDeleteBuffers(n, names);
AFTER_GL_CALL;
}
void GLAPIENTRY raw_fDeleteFramebuffers(GLsizei n, GLuint *names) {
BEFORE_GL_CALL;
mSymbols.fDeleteFramebuffers(n, names);
AFTER_GL_CALL;
}
void GLAPIENTRY raw_fDeleteRenderbuffers(GLsizei n, GLuint *names) {
BEFORE_GL_CALL;
mSymbols.fDeleteRenderbuffers(n, names);
AFTER_GL_CALL;
}
void GLAPIENTRY raw_fDeleteTextures(GLsizei n, GLuint *names) {
BEFORE_GL_CALL;
mSymbols.fDeleteTextures(n, names);
AFTER_GL_CALL;
}
public:
void fDeleteProgram(GLuint program) {
raw_fDeleteProgram(program);
TRACKING_CONTEXT(DeletedProgram(this, program));
}
void fDeleteShader(GLuint shader) {
raw_fDeleteShader(shader);
TRACKING_CONTEXT(DeletedShader(this, shader));
}
void fDeleteBuffers(GLsizei n, GLuint *names) {
raw_fDeleteBuffers(n, names);
TRACKING_CONTEXT(DeletedBuffers(this, n, names));
}
void fDeleteFramebuffers(GLsizei n, GLuint *names) {
if (n == 1 && *names == 0) {
// Deleting framebuffer 0 causes hangs on the DROID. See bug 623228.
} else {
raw_fDeleteFramebuffers(n, names);
}
TRACKING_CONTEXT(DeletedFramebuffers(this, n, names));
}
void fDeleteRenderbuffers(GLsizei n, GLuint *names) {
raw_fDeleteRenderbuffers(n, names);
TRACKING_CONTEXT(DeletedRenderbuffers(this, n, names));
}
void fDeleteTextures(GLsizei n, GLuint *names) {
raw_fDeleteTextures(n, names);
TRACKING_CONTEXT(DeletedTextures(this, n, names));
}
GLenum GLAPIENTRY fGetGraphicsResetStatus() {
MOZ_ASSERT(mHasRobustness);
BEFORE_GL_CALL;
ASSERT_SYMBOL_PRESENT(fGetGraphicsResetStatus);
GLenum ret = mSymbols.fGetGraphicsResetStatus();
AFTER_GL_CALL;
return ret;
}
GLsync GLAPIENTRY fFenceSync(GLenum condition, GLbitfield flags) {
BEFORE_GL_CALL;
ASSERT_SYMBOL_PRESENT(fFenceSync);
GLsync ret = mSymbols.fFenceSync(condition, flags);
AFTER_GL_CALL;
return ret;
}
realGLboolean GLAPIENTRY fIsSync(GLsync sync) {
BEFORE_GL_CALL;
ASSERT_SYMBOL_PRESENT(fIsSync);
realGLboolean ret = mSymbols.fIsSync(sync);
AFTER_GL_CALL;
return ret;
}
void GLAPIENTRY fDeleteSync(GLsync sync) {
BEFORE_GL_CALL;
ASSERT_SYMBOL_PRESENT(fDeleteSync);
mSymbols.fDeleteSync(sync);
AFTER_GL_CALL;
}
GLenum GLAPIENTRY fClientWaitSync(GLsync sync, GLbitfield flags, GLuint64 timeout) {
BEFORE_GL_CALL;
ASSERT_SYMBOL_PRESENT(fClientWaitSync);
GLenum ret = mSymbols.fClientWaitSync(sync, flags, timeout);
AFTER_GL_CALL;
return ret;
}
void GLAPIENTRY fWaitSync(GLsync sync, GLbitfield flags, GLuint64 timeout) {
BEFORE_GL_CALL;
ASSERT_SYMBOL_PRESENT(fWaitSync);
mSymbols.fWaitSync(sync, flags, timeout);
AFTER_GL_CALL;
}
void GLAPIENTRY fGetInteger64v(GLenum pname, GLint64 *params) {
BEFORE_GL_CALL;
ASSERT_SYMBOL_PRESENT(fGetInteger64v);
mSymbols.fGetInteger64v(pname, params);
AFTER_GL_CALL;
}
void GLAPIENTRY fGetSynciv(GLsync sync, GLenum pname, GLsizei bufSize, GLsizei *length, GLint *values) {
BEFORE_GL_CALL;
ASSERT_SYMBOL_PRESENT(fGetSynciv);
mSymbols.fGetSynciv(sync, pname, bufSize, length, values);
AFTER_GL_CALL;
}
// OES_EGL_image (GLES)
void fEGLImageTargetTexture2D(GLenum target, GLeglImage image) {
BEFORE_GL_CALL;
ASSERT_SYMBOL_PRESENT(fEGLImageTargetTexture2D);
mSymbols.fEGLImageTargetTexture2D(target, image);
AFTER_GL_CALL;
}
#undef ASSERT_SYMBOL_PRESENT
#ifdef DEBUG
void THEBES_API CreatedProgram(GLContext *aOrigin, GLuint aName);
void THEBES_API CreatedShader(GLContext *aOrigin, GLuint aName);
void THEBES_API CreatedBuffers(GLContext *aOrigin, GLsizei aCount, GLuint *aNames);
void THEBES_API CreatedTextures(GLContext *aOrigin, GLsizei aCount, GLuint *aNames);
void THEBES_API CreatedFramebuffers(GLContext *aOrigin, GLsizei aCount, GLuint *aNames);
void THEBES_API CreatedRenderbuffers(GLContext *aOrigin, GLsizei aCount, GLuint *aNames);
void THEBES_API DeletedProgram(GLContext *aOrigin, GLuint aName);
void THEBES_API DeletedShader(GLContext *aOrigin, GLuint aName);
void THEBES_API DeletedBuffers(GLContext *aOrigin, GLsizei aCount, GLuint *aNames);
void THEBES_API DeletedTextures(GLContext *aOrigin, GLsizei aCount, GLuint *aNames);
void THEBES_API DeletedFramebuffers(GLContext *aOrigin, GLsizei aCount, GLuint *aNames);
void THEBES_API DeletedRenderbuffers(GLContext *aOrigin, GLsizei aCount, GLuint *aNames);
void SharedContextDestroyed(GLContext *aChild);
void ReportOutstandingNames();
struct NamedResource {
NamedResource()
: origin(nullptr), name(0), originDeleted(false)
{ }
NamedResource(GLContext *aOrigin, GLuint aName)
: origin(aOrigin), name(aName), originDeleted(false)
{ }
GLContext *origin;
GLuint name;
bool originDeleted;
// for sorting
bool operator<(const NamedResource& aOther) const {
if (intptr_t(origin) < intptr_t(aOther.origin))
return true;
if (name < aOther.name)
return true;
return false;
}
bool operator==(const NamedResource& aOther) const {
return origin == aOther.origin &&
name == aOther.name &&
originDeleted == aOther.originDeleted;
}
};
nsTArray<NamedResource> mTrackedPrograms;
nsTArray<NamedResource> mTrackedShaders;
nsTArray<NamedResource> mTrackedTextures;
nsTArray<NamedResource> mTrackedFramebuffers;
nsTArray<NamedResource> mTrackedRenderbuffers;
nsTArray<NamedResource> mTrackedBuffers;
#endif
public:
enum MemoryUse {
// when memory being allocated is reported to a memory reporter
MemoryAllocated,
// when memory being freed is reported to a memory reporter
MemoryFreed
};
// When memory is used/freed for tile textures, call this method
// to update the value reported by the memory reporter.
static void UpdateTextureMemoryUsage(MemoryUse action,
GLenum format,
GLenum type,
uint16_t tileSize);
};
inline bool
DoesStringMatch(const char* aString, const char *aWantedString)
{
if (!aString || !aWantedString)
return false;
const char *occurrence = strstr(aString, aWantedString);
// aWanted not found
if (!occurrence)
return false;
// aWantedString preceded by alpha character
if (occurrence != aString && isalpha(*(occurrence-1)))
return false;
// aWantedVendor followed by alpha character
const char *afterOccurrence = occurrence + strlen(aWantedString);
if (isalpha(*afterOccurrence))
return false;
return true;
}
//RAII via CRTP!
template <class Derived>
struct ScopedGLWrapper
{
private:
bool mIsUnwrapped;
protected:
GLContext* const mGL;
ScopedGLWrapper(GLContext* gl)
: mIsUnwrapped(false)
, mGL(gl)
{
MOZ_ASSERT(&ScopedGLWrapper<Derived>::Unwrap == &Derived::Unwrap);
MOZ_ASSERT(&Derived::UnwrapImpl);
MOZ_ASSERT(mGL->IsCurrent());
}
virtual ~ScopedGLWrapper() {
if (!mIsUnwrapped)
Unwrap();
}
public:
void Unwrap() {
MOZ_ASSERT(!mIsUnwrapped);
Derived* derived = static_cast<Derived*>(this);
derived->UnwrapImpl();
mIsUnwrapped = true;
}
};
struct ScopedFramebufferTexture
: public ScopedGLWrapper<ScopedFramebufferTexture>
{
friend struct ScopedGLWrapper<ScopedFramebufferTexture>;
protected:
bool mComplete; // True if the framebuffer we create is complete.
GLuint mFB;
public:
ScopedFramebufferTexture(GLContext* gl, GLuint texture)
: ScopedGLWrapper<ScopedFramebufferTexture>(gl)
, mComplete(false)
, mFB(0)
{
MOZ_ASSERT(mGL->IsCurrent());
GLuint boundFB = mGL->GetUserBoundFBO();
mGL->fGenFramebuffers(1, &mFB);
mGL->fBindFramebuffer(LOCAL_GL_FRAMEBUFFER, mFB);
mGL->fFramebufferTexture2D(LOCAL_GL_FRAMEBUFFER,
LOCAL_GL_COLOR_ATTACHMENT0,
LOCAL_GL_TEXTURE_2D,
texture,
0);
GLenum status = mGL->fCheckFramebufferStatus(LOCAL_GL_FRAMEBUFFER);
if (status == LOCAL_GL_FRAMEBUFFER_COMPLETE) {
mComplete = true;
} else {
mGL->fDeleteFramebuffers(1, &mFB);
mFB = 0;
}
mGL->BindUserFBO(boundFB);
}
protected:
void UnwrapImpl() {
if (!mFB)
return;
MOZ_ASSERT(mGL->IsCurrent());
mGL->fDeleteFramebuffers(1, &mFB);
mFB = 0;
}
public:
GLuint FB() const {
return mFB;
}
bool IsComplete() const {
return mComplete;
}
};
// Wraps glEnable/Disable.
struct ScopedGLState
: public ScopedGLWrapper<ScopedGLState>
{
friend struct ScopedGLWrapper<ScopedGLState>;
protected:
const GLenum mCapability;
bool mOldState;
public:
// Use |newState = true| to enable, |false| to disable.
ScopedGLState(GLContext* gl, GLenum capability, bool newState)
: ScopedGLWrapper<ScopedGLState>(gl)
, mCapability(capability)
{
MOZ_ASSERT(mGL->IsCurrent());
mOldState = mGL->fIsEnabled(mCapability);
// Early out if we're already in the right state.
if (newState == mOldState)
return;
if (newState)
mGL->fEnable(mCapability);
else
mGL->fDisable(mCapability);
}
protected:
void UnwrapImpl() {
MOZ_ASSERT(mGL->IsCurrent());
if (mOldState)
mGL->fEnable(mCapability);
else
mGL->fDisable(mCapability);
}
};
// Saves and restores with GetUserBoundFBO and BindUserFBO.
struct ScopedFramebufferBinding
: public ScopedGLWrapper<ScopedFramebufferBinding>
{
friend struct ScopedGLWrapper<ScopedFramebufferBinding>;
protected:
GLuint mOldState;
private:
void Init() {
MOZ_ASSERT(mGL->IsCurrent());
mOldState = mGL->GetUserBoundFBO();
}
public:
ScopedFramebufferBinding(GLContext* gl)
: ScopedGLWrapper<ScopedFramebufferBinding>(gl)
{
Init();
}
ScopedFramebufferBinding(GLContext* gl, GLuint newFB)
: ScopedGLWrapper<ScopedFramebufferBinding>(gl)
{
Init();
mGL->BindUserFBO(newFB);
}
protected:
void UnwrapImpl() {
MOZ_ASSERT(mGL->IsCurrent());
mGL->BindUserFBO(mOldState);
}
};
uint32_t GetBitsPerTexel(GLenum format, GLenum type);
} /* namespace gl */
} /* namespace mozilla */
#endif /* GLCONTEXT_H_ */
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