Bug 950903 - 1/8 - Expose GLContextEGL publicly - r=jgilbert

This commit is contained in:
Benoit Jacob 2014-01-07 15:02:18 -05:00
parent 6f2c10f6ac
commit 174b06912b
3 changed files with 424 additions and 340 deletions

132
gfx/gl/GLContextEGL.h Normal file
View File

@ -0,0 +1,132 @@
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* vim: set ts=8 sts=4 et sw=4 tw=80: */
/* 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 GLCONTEXTEGL_H_
#define GLCONTEXTEGL_H_
#include "GLContext.h"
#include "GLLibraryEGL.h"
#ifdef MOZ_WIDGET_GONK
#include "HwcComposer2D.h"
#endif
namespace mozilla {
namespace gl {
class GLContextEGL : public GLContext
{
friend class TextureImageEGL;
static already_AddRefed<GLContextEGL>
CreateGLContext(const SurfaceCaps& caps,
GLContextEGL *shareContext,
bool isOffscreen,
EGLConfig config,
EGLSurface surface);
public:
GLContextEGL(const SurfaceCaps& caps,
GLContext* shareContext,
bool isOffscreen,
EGLConfig config,
EGLSurface surface,
EGLContext context);
~GLContextEGL();
GLContextType GetContextType() {
return ContextTypeEGL;
}
bool Init();
bool IsDoubleBuffered() {
return mIsDoubleBuffered;
}
void SetIsDoubleBuffered(bool aIsDB) {
mIsDoubleBuffered = aIsDB;
}
bool SupportsRobustness()
{
return sEGLLibrary.HasRobustness();
}
virtual bool IsANGLE()
{
return sEGLLibrary.IsANGLE();
}
bool BindTexImage();
bool ReleaseTexImage();
void SetEGLSurfaceOverride(EGLSurface surf);
bool MakeCurrentImpl(bool aForce = false);
virtual bool IsCurrent();
virtual bool
RenewSurface();
virtual void
ReleaseSurface();
bool SetupLookupFunction();
void *GetNativeData(NativeDataType aType);
bool SwapBuffers();
// hold a reference to the given surface
// for the lifetime of this context.
void HoldSurface(gfxASurface *aSurf);
EGLContext Context() {
return mContext;
}
bool BindTex2DOffscreen(GLContext *aOffscreen);
void UnbindTex2DOffscreen(GLContext *aOffscreen);
bool ResizeOffscreen(const gfx::IntSize& aNewSize);
void BindOffscreenFramebuffer();
static already_AddRefed<GLContextEGL>
CreateEGLPixmapOffscreenContext(const gfxIntSize& size);
static already_AddRefed<GLContextEGL>
CreateEGLPBufferOffscreenContext(const gfxIntSize& size);
protected:
friend class GLContextProviderEGL;
EGLConfig mConfig;
EGLSurface mSurface;
EGLSurface mSurfaceOverride;
EGLContext mContext;
nsRefPtr<gfxASurface> mThebesSurface;
bool mBound;
bool mIsPBuffer;
bool mIsDoubleBuffered;
bool mCanBindToTexture;
bool mShareWithEGLImage;
#ifdef MOZ_WIDGET_GONK
nsRefPtr<HwcComposer2D> mHwc;
#endif
static EGLSurface CreatePBufferSurfaceTryingPowerOfTwo(EGLConfig config,
EGLenum bindToTextureFormat,
gfxIntSize& pbsize);
};
}
}
#endif // GLCONTEXTEGL_H_

View File

@ -5,7 +5,7 @@
#include "mozilla/ArrayUtils.h"
#include "GLContext.h"
#include "GLContextEGL.h"
#if defined(XP_UNIX)
@ -214,394 +214,345 @@ CreateSurfaceForWindow(nsIWidget* widget, const EGLConfig& config) {
return newSurface;
}
class GLContextEGL : public GLContext
GLContextEGL::GLContextEGL(
const SurfaceCaps& caps,
GLContext* shareContext,
bool isOffscreen,
EGLConfig config,
EGLSurface surface,
EGLContext context)
: GLContext(caps, shareContext, isOffscreen)
, mConfig(config)
, mSurface(surface)
, mSurfaceOverride(EGL_NO_SURFACE)
, mContext(context)
, mThebesSurface(nullptr)
, mBound(false)
, mIsPBuffer(false)
, mIsDoubleBuffered(false)
, mCanBindToTexture(false)
, mShareWithEGLImage(false)
{
friend class TextureImageEGL;
static already_AddRefed<GLContextEGL>
CreateGLContext(const SurfaceCaps& caps,
GLContextEGL *shareContext,
bool isOffscreen,
EGLConfig config,
EGLSurface surface)
{
if (sEGLLibrary.fBindAPI(LOCAL_EGL_OPENGL_ES_API) == LOCAL_EGL_FALSE) {
NS_WARNING("Failed to bind API to GLES!");
return nullptr;
}
EGLContext eglShareContext = shareContext ? shareContext->mContext
: EGL_NO_CONTEXT;
EGLint* attribs = sEGLLibrary.HasRobustness() ? gContextAttribsRobustness
: gContextAttribs;
EGLContext context = sEGLLibrary.fCreateContext(EGL_DISPLAY(),
config,
eglShareContext,
attribs);
if (!context && shareContext) {
shareContext = nullptr;
context = sEGLLibrary.fCreateContext(EGL_DISPLAY(),
config,
EGL_NO_CONTEXT,
attribs);
}
if (!context) {
NS_WARNING("Failed to create EGLContext!");
return nullptr;
}
nsRefPtr<GLContextEGL> glContext = new GLContextEGL(caps,
shareContext,
isOffscreen,
config,
surface,
context);
if (!glContext->Init())
return nullptr;
return glContext.forget();
}
public:
GLContextEGL(const SurfaceCaps& caps,
GLContext* shareContext,
bool isOffscreen,
EGLConfig config,
EGLSurface surface,
EGLContext context)
: GLContext(caps, shareContext, isOffscreen)
, mConfig(config)
, mSurface(surface)
, mSurfaceOverride(EGL_NO_SURFACE)
, mContext(context)
, mThebesSurface(nullptr)
, mBound(false)
, mIsPBuffer(false)
, mIsDoubleBuffered(false)
, mCanBindToTexture(false)
, mShareWithEGLImage(false)
{
// any EGL contexts will always be GLESv2
SetProfileVersion(ContextProfile::OpenGLES, 200);
// any EGL contexts will always be GLESv2
SetProfileVersion(ContextProfile::OpenGLES, 200);
#ifdef DEBUG
printf_stderr("Initializing context %p surface %p on display %p\n", mContext, mSurface, EGL_DISPLAY());
printf_stderr("Initializing context %p surface %p on display %p\n", mContext, mSurface, EGL_DISPLAY());
#endif
#if defined(MOZ_WIDGET_GONK)
if (!mIsOffscreen) {
mHwc = HwcComposer2D::GetInstance();
MOZ_ASSERT(!mHwc->Initialized());
if (!mIsOffscreen) {
mHwc = HwcComposer2D::GetInstance();
MOZ_ASSERT(!mHwc->Initialized());
if (mHwc->Init(EGL_DISPLAY(), mSurface)) {
NS_WARNING("HWComposer initialization failed!");
mHwc = nullptr;
}
if (mHwc->Init(EGL_DISPLAY(), mSurface)) {
NS_WARNING("HWComposer initialization failed!");
mHwc = nullptr;
}
#endif
}
#endif
}
~GLContextEGL()
{
MarkDestroyed();
GLContextEGL::~GLContextEGL()
{
MarkDestroyed();
#ifdef DEBUG
printf_stderr("Destroying context %p surface %p on display %p\n", mContext, mSurface, EGL_DISPLAY());
printf_stderr("Destroying context %p surface %p on display %p\n", mContext, mSurface, EGL_DISPLAY());
#endif
sEGLLibrary.fDestroyContext(EGL_DISPLAY(), mContext);
mozilla::gl::DestroySurface(mSurface);
}
sEGLLibrary.fDestroyContext(EGL_DISPLAY(), mContext);
mozilla::gl::DestroySurface(mSurface);
}
GLContextType GetContextType() {
return ContextTypeEGL;
}
bool Init()
{
bool
GLContextEGL::Init()
{
#if defined(ANDROID)
// We can't use LoadApitraceLibrary here because the GLContext
// expects its own handle to the GL library
if (!OpenLibrary(APITRACE_LIB))
// We can't use LoadApitraceLibrary here because the GLContext
// expects its own handle to the GL library
if (!OpenLibrary(APITRACE_LIB))
#endif
if (!OpenLibrary(GLES2_LIB)) {
if (!OpenLibrary(GLES2_LIB)) {
#if defined(XP_UNIX)
if (!OpenLibrary(GLES2_LIB2)) {
NS_WARNING("Couldn't load GLES2 LIB.");
return false;
}
#endif
if (!OpenLibrary(GLES2_LIB2)) {
NS_WARNING("Couldn't load GLES2 LIB.");
return false;
}
SetupLookupFunction();
if (!InitWithPrefix("gl", true))
return false;
bool current = MakeCurrent();
if (!current) {
gfx::LogFailure(NS_LITERAL_CSTRING(
"Couldn't get device attachments for device."));
return false;
#endif
}
PR_STATIC_ASSERT(sizeof(GLint) >= sizeof(int32_t));
mMaxTextureImageSize = INT32_MAX;
SetupLookupFunction();
if (!InitWithPrefix("gl", true))
return false;
mShareWithEGLImage = sEGLLibrary.HasKHRImageBase() &&
sEGLLibrary.HasKHRImageTexture2D() &&
IsExtensionSupported(OES_EGL_image);
bool current = MakeCurrent();
if (!current) {
gfx::LogFailure(NS_LITERAL_CSTRING(
"Couldn't get device attachments for device."));
return false;
}
PR_STATIC_ASSERT(sizeof(GLint) >= sizeof(int32_t));
mMaxTextureImageSize = INT32_MAX;
mShareWithEGLImage = sEGLLibrary.HasKHRImageBase() &&
sEGLLibrary.HasKHRImageTexture2D() &&
IsExtensionSupported(OES_EGL_image);
return true;
}
bool
GLContextEGL::BindTexImage()
{
if (!mSurface)
return false;
if (mBound && !ReleaseTexImage())
return false;
EGLBoolean success = sEGLLibrary.fBindTexImage(EGL_DISPLAY(),
(EGLSurface)mSurface, LOCAL_EGL_BACK_BUFFER);
if (success == LOCAL_EGL_FALSE)
return false;
mBound = true;
return true;
}
bool
GLContextEGL::ReleaseTexImage()
{
if (!mBound)
return true;
if (!mSurface)
return false;
EGLBoolean success;
success = sEGLLibrary.fReleaseTexImage(EGL_DISPLAY(),
(EGLSurface)mSurface,
LOCAL_EGL_BACK_BUFFER);
if (success == LOCAL_EGL_FALSE)
return false;
mBound = false;
return true;
}
void
GLContextEGL::SetEGLSurfaceOverride(EGLSurface surf) {
if (Screen()) {
/* Blit `draw` to `read` if we need to, before we potentially juggle
* `read` around. If we don't, we might attach a different `read`,
* and *then* hit AssureBlitted, which will blit a dirty `draw` onto
* the wrong `read`!
*/
Screen()->AssureBlitted();
}
bool IsDoubleBuffered() {
return mIsDoubleBuffered;
}
mSurfaceOverride = surf ? (EGLSurface) surf : mSurface;
MakeCurrent(true);
}
void SetIsDoubleBuffered(bool aIsDB) {
mIsDoubleBuffered = aIsDB;
}
bool
GLContextEGL::MakeCurrentImpl(bool aForce) {
bool succeeded = true;
bool SupportsRobustness()
{
return sEGLLibrary.HasRobustness();
}
virtual bool IsANGLE()
{
return sEGLLibrary.IsANGLE();
}
bool BindTexImage()
{
if (!mSurface)
return false;
if (mBound && !ReleaseTexImage())
return false;
EGLBoolean success = sEGLLibrary.fBindTexImage(EGL_DISPLAY(),
(EGLSurface)mSurface, LOCAL_EGL_BACK_BUFFER);
if (success == LOCAL_EGL_FALSE)
return false;
mBound = true;
return true;
}
bool ReleaseTexImage()
{
if (!mBound)
return true;
if (!mSurface)
return false;
EGLBoolean success;
success = sEGLLibrary.fReleaseTexImage(EGL_DISPLAY(),
(EGLSurface)mSurface,
LOCAL_EGL_BACK_BUFFER);
if (success == LOCAL_EGL_FALSE)
return false;
mBound = false;
return true;
}
void SetEGLSurfaceOverride(EGLSurface surf) {
if (Screen()) {
/* Blit `draw` to `read` if we need to, before we potentially juggle
* `read` around. If we don't, we might attach a different `read`,
* and *then* hit AssureBlitted, which will blit a dirty `draw` onto
* the wrong `read`!
*/
Screen()->AssureBlitted();
}
mSurfaceOverride = surf ? (EGLSurface) surf : mSurface;
MakeCurrent(true);
}
bool MakeCurrentImpl(bool aForce = false) {
bool succeeded = true;
// Assume that EGL has the same problem as WGL does,
// where MakeCurrent with an already-current context is
// still expensive.
if (aForce || sEGLLibrary.fGetCurrentContext() != mContext) {
EGLSurface surface = mSurfaceOverride != EGL_NO_SURFACE
? mSurfaceOverride
: mSurface;
succeeded = sEGLLibrary.fMakeCurrent(EGL_DISPLAY(),
surface, surface,
mContext);
int eglError = sEGLLibrary.fGetError();
if (!succeeded) {
if (eglError == LOCAL_EGL_CONTEXT_LOST) {
mContextLost = true;
NS_WARNING("EGL context has been lost.");
} else {
NS_WARNING("Failed to make GL context current!");
// Assume that EGL has the same problem as WGL does,
// where MakeCurrent with an already-current context is
// still expensive.
if (aForce || sEGLLibrary.fGetCurrentContext() != mContext) {
EGLSurface surface = mSurfaceOverride != EGL_NO_SURFACE
? mSurfaceOverride
: mSurface;
succeeded = sEGLLibrary.fMakeCurrent(EGL_DISPLAY(),
surface, surface,
mContext);
int eglError = sEGLLibrary.fGetError();
if (!succeeded) {
if (eglError == LOCAL_EGL_CONTEXT_LOST) {
mContextLost = true;
NS_WARNING("EGL context has been lost.");
} else {
NS_WARNING("Failed to make GL context current!");
#ifdef DEBUG
printf_stderr("EGL Error: 0x%04x\n", eglError);
printf_stderr("EGL Error: 0x%04x\n", eglError);
#endif
}
}
}
return succeeded;
}
virtual bool IsCurrent() {
return sEGLLibrary.fGetCurrentContext() == mContext;
}
return succeeded;
}
virtual bool
RenewSurface() {
bool
GLContextEGL::IsCurrent() {
return sEGLLibrary.fGetCurrentContext() == mContext;
}
bool
GLContextEGL::RenewSurface() {
#ifndef MOZ_WIDGET_ANDROID
MOZ_CRASH("unimplemented");
// to support this on non-Android platforms, need to keep track of the nsIWidget that
// this GLContext was created for (with CreateForWindow) so that we know what to
// pass again to CreateSurfaceForWindow below.
// The reason why Android doesn't need this is that it delegates EGLSurface creation to
// Java code which is the only thing that knows about our actual widget.
MOZ_CRASH("unimplemented");
// to support this on non-Android platforms, need to keep track of the nsIWidget that
// this GLContext was created for (with CreateForWindow) so that we know what to
// pass again to CreateSurfaceForWindow below.
// The reason why Android doesn't need this is that it delegates EGLSurface creation to
// Java code which is the only thing that knows about our actual widget.
#endif
// unconditionally release the surface and create a new one. Don't try to optimize this away.
// If we get here, then by definition we know that we want to get a new surface.
ReleaseSurface();
mSurface = mozilla::gl::CreateSurfaceForWindow(nullptr, mConfig); // the nullptr here is where we assume Android.
if (mSurface == EGL_NO_SURFACE) {
return false;
}
return MakeCurrent(true);
// unconditionally release the surface and create a new one. Don't try to optimize this away.
// If we get here, then by definition we know that we want to get a new surface.
ReleaseSurface();
mSurface = mozilla::gl::CreateSurfaceForWindow(nullptr, mConfig); // the nullptr here is where we assume Android.
if (mSurface == EGL_NO_SURFACE) {
return false;
}
return MakeCurrent(true);
}
virtual void
ReleaseSurface() {
DestroySurface(mSurface);
mSurface = nullptr;
}
void
GLContextEGL::ReleaseSurface() {
DestroySurface(mSurface);
mSurface = nullptr;
}
bool SetupLookupFunction()
{
mLookupFunc = (PlatformLookupFunction)sEGLLibrary.mSymbols.fGetProcAddress;
return true;
}
bool
GLContextEGL::SetupLookupFunction()
{
mLookupFunc = (PlatformLookupFunction)sEGLLibrary.mSymbols.fGetProcAddress;
return true;
}
void *GetNativeData(NativeDataType aType)
{
switch (aType) {
case NativeGLContext:
return mContext;
default:
return nullptr;
}
}
bool SwapBuffers()
{
if (mSurface) {
#ifdef MOZ_WIDGET_GONK
if (!mIsOffscreen) {
if (mHwc) {
return mHwc->Render(EGL_DISPLAY(), mSurface);
} else {
return GetGonkDisplay()->SwapBuffers(EGL_DISPLAY(), mSurface);
}
} else
#endif
return sEGLLibrary.fSwapBuffers(EGL_DISPLAY(), mSurface);
} else {
return false;
}
}
// hold a reference to the given surface
// for the lifetime of this context.
void HoldSurface(gfxASurface *aSurf) {
mThebesSurface = aSurf;
}
EGLContext Context() {
void*
GLContextEGL::GetNativeData(NativeDataType aType)
{
switch (aType) {
case NativeGLContext:
return mContext;
default:
return nullptr;
}
}
bool BindTex2DOffscreen(GLContext *aOffscreen);
void UnbindTex2DOffscreen(GLContext *aOffscreen);
bool ResizeOffscreen(const gfx::IntSize& aNewSize);
void BindOffscreenFramebuffer();
static already_AddRefed<GLContextEGL>
CreateEGLPixmapOffscreenContext(const gfxIntSize& size);
static already_AddRefed<GLContextEGL>
CreateEGLPBufferOffscreenContext(const gfxIntSize& size);
protected:
friend class GLContextProviderEGL;
EGLConfig mConfig;
EGLSurface mSurface;
EGLSurface mSurfaceOverride;
EGLContext mContext;
nsRefPtr<gfxASurface> mThebesSurface;
bool mBound;
bool mIsPBuffer;
bool mIsDoubleBuffered;
bool mCanBindToTexture;
bool mShareWithEGLImage;
bool
GLContextEGL::SwapBuffers()
{
if (mSurface) {
#ifdef MOZ_WIDGET_GONK
nsRefPtr<HwcComposer2D> mHwc;
#endif
static EGLSurface CreatePBufferSurfaceTryingPowerOfTwo(EGLConfig config,
EGLenum bindToTextureFormat,
gfxIntSize& pbsize)
{
nsTArray<EGLint> pbattrs(16);
EGLSurface surface = nullptr;
TRY_AGAIN_POWER_OF_TWO:
pbattrs.Clear();
pbattrs.AppendElement(LOCAL_EGL_WIDTH); pbattrs.AppendElement(pbsize.width);
pbattrs.AppendElement(LOCAL_EGL_HEIGHT); pbattrs.AppendElement(pbsize.height);
if (bindToTextureFormat != LOCAL_EGL_NONE) {
pbattrs.AppendElement(LOCAL_EGL_TEXTURE_TARGET);
pbattrs.AppendElement(LOCAL_EGL_TEXTURE_2D);
pbattrs.AppendElement(LOCAL_EGL_TEXTURE_FORMAT);
pbattrs.AppendElement(bindToTextureFormat);
}
for (size_t i = 0; i < MOZ_ARRAY_LENGTH(gTerminationAttribs); i++) {
pbattrs.AppendElement(gTerminationAttribs[i]);
}
surface = sEGLLibrary.fCreatePbufferSurface(EGL_DISPLAY(), config, &pbattrs[0]);
if (!surface) {
if (!is_power_of_two(pbsize.width) ||
!is_power_of_two(pbsize.height))
{
if (!is_power_of_two(pbsize.width))
pbsize.width = next_power_of_two(pbsize.width);
if (!is_power_of_two(pbsize.height))
pbsize.height = next_power_of_two(pbsize.height);
NS_WARNING("Failed to create pbuffer, trying power of two dims");
goto TRY_AGAIN_POWER_OF_TWO;
if (!mIsOffscreen) {
if (mHwc) {
return mHwc->Render(EGL_DISPLAY(), mSurface);
} else {
return GetGonkDisplay()->SwapBuffers(EGL_DISPLAY(), mSurface);
}
} else
#endif
return sEGLLibrary.fSwapBuffers(EGL_DISPLAY(), mSurface);
} else {
return false;
}
}
NS_WARNING("Failed to create pbuffer surface");
return nullptr;
// hold a reference to the given surface
// for the lifetime of this context.
void
GLContextEGL::HoldSurface(gfxASurface *aSurf) {
mThebesSurface = aSurf;
}
already_AddRefed<GLContextEGL>
GLContextEGL::CreateGLContext(const SurfaceCaps& caps,
GLContextEGL *shareContext,
bool isOffscreen,
EGLConfig config,
EGLSurface surface)
{
if (sEGLLibrary.fBindAPI(LOCAL_EGL_OPENGL_ES_API) == LOCAL_EGL_FALSE) {
NS_WARNING("Failed to bind API to GLES!");
return nullptr;
}
EGLContext eglShareContext = shareContext ? shareContext->mContext
: EGL_NO_CONTEXT;
EGLint* attribs = sEGLLibrary.HasRobustness() ? gContextAttribsRobustness
: gContextAttribs;
EGLContext context = sEGLLibrary.fCreateContext(EGL_DISPLAY(),
config,
eglShareContext,
attribs);
if (!context && shareContext) {
shareContext = nullptr;
context = sEGLLibrary.fCreateContext(EGL_DISPLAY(),
config,
EGL_NO_CONTEXT,
attribs);
}
if (!context) {
NS_WARNING("Failed to create EGLContext!");
return nullptr;
}
nsRefPtr<GLContextEGL> glContext = new GLContextEGL(caps,
shareContext,
isOffscreen,
config,
surface,
context);
if (!glContext->Init())
return nullptr;
return glContext.forget();
}
EGLSurface
GLContextEGL::CreatePBufferSurfaceTryingPowerOfTwo(EGLConfig config,
EGLenum bindToTextureFormat,
gfxIntSize& pbsize)
{
nsTArray<EGLint> pbattrs(16);
EGLSurface surface = nullptr;
TRY_AGAIN_POWER_OF_TWO:
pbattrs.Clear();
pbattrs.AppendElement(LOCAL_EGL_WIDTH); pbattrs.AppendElement(pbsize.width);
pbattrs.AppendElement(LOCAL_EGL_HEIGHT); pbattrs.AppendElement(pbsize.height);
if (bindToTextureFormat != LOCAL_EGL_NONE) {
pbattrs.AppendElement(LOCAL_EGL_TEXTURE_TARGET);
pbattrs.AppendElement(LOCAL_EGL_TEXTURE_2D);
pbattrs.AppendElement(LOCAL_EGL_TEXTURE_FORMAT);
pbattrs.AppendElement(bindToTextureFormat);
}
for (size_t i = 0; i < MOZ_ARRAY_LENGTH(gTerminationAttribs); i++) {
pbattrs.AppendElement(gTerminationAttribs[i]);
}
surface = sEGLLibrary.fCreatePbufferSurface(EGL_DISPLAY(), config, &pbattrs[0]);
if (!surface) {
if (!is_power_of_two(pbsize.width) ||
!is_power_of_two(pbsize.height))
{
if (!is_power_of_two(pbsize.width))
pbsize.width = next_power_of_two(pbsize.width);
if (!is_power_of_two(pbsize.height))
pbsize.height = next_power_of_two(pbsize.height);
NS_WARNING("Failed to create pbuffer, trying power of two dims");
goto TRY_AGAIN_POWER_OF_TWO;
}
return surface;
NS_WARNING("Failed to create pbuffer surface");
return nullptr;
}
};
return surface;
}
bool
GLContextEGL::ResizeOffscreen(const gfx::IntSize& aNewSize)

View File

@ -32,6 +32,7 @@ EXPORTS += [
'GLBlitTextureImageHelper.h',
'GLConsts.h',
'GLContext.h',
'GLContextEGL.h',
'GLContextProvider.h',
'GLContextProviderImpl.h',
'GLContextSymbols.h',