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GLContextProviderEGL.cpp
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GLContextProviderEGL.cpp
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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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/. */
#include "GLContext.h"
#include "mozilla/Util.h"
#if defined(XP_UNIX)
#ifdef MOZ_WIDGET_GTK
#include <gdk/gdkx.h>
// we're using default display for now
#define GET_NATIVE_WINDOW(aWidget) (EGLNativeWindowType)GDK_WINDOW_XID((GdkWindow *) aWidget->GetNativeData(NS_NATIVE_WINDOW))
#elif defined(MOZ_WIDGET_GONK)
#define GET_NATIVE_WINDOW(aWidget) ((EGLNativeWindowType)aWidget->GetNativeData(NS_NATIVE_WINDOW))
#include "HwcComposer2D.h"
#include "libdisplay/GonkDisplay.h"
#endif
#if defined(ANDROID)
/* from widget */
#if defined(MOZ_WIDGET_ANDROID)
#include "AndroidBridge.h"
#include "nsSurfaceTexture.h"
#endif
#include <android/log.h>
#define LOG(args...) __android_log_print(ANDROID_LOG_INFO, "Gonk" , ## args)
# if defined(MOZ_WIDGET_GONK)
# include "cutils/properties.h"
# include <ui/GraphicBuffer.h>
using namespace android;
# endif
#endif
#define GLES2_LIB "libGLESv2.so"
#define GLES2_LIB2 "libGLESv2.so.2"
#elif defined(XP_WIN)
#include "nsIFile.h"
#define GLES2_LIB "libGLESv2.dll"
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN 1
#endif
#include <windows.h>
// a little helper
class AutoDestroyHWND {
public:
AutoDestroyHWND(HWND aWnd = nullptr)
: mWnd(aWnd)
{
}
~AutoDestroyHWND() {
if (mWnd) {
::DestroyWindow(mWnd);
}
}
operator HWND() {
return mWnd;
}
HWND forget() {
HWND w = mWnd;
mWnd = nullptr;
return w;
}
HWND operator=(HWND aWnd) {
if (mWnd && mWnd != aWnd) {
::DestroyWindow(mWnd);
}
mWnd = aWnd;
return mWnd;
}
HWND mWnd;
};
#else
#error "Platform not recognized"
#endif
#include "mozilla/Preferences.h"
#include "gfxUtils.h"
#include "gfxFailure.h"
#include "gfxASurface.h"
#include "gfxImageSurface.h"
#include "gfxPlatform.h"
#include "GLContextProvider.h"
#include "GLLibraryEGL.h"
#include "TextureImageEGL.h"
#include "nsDebug.h"
#include "nsThreadUtils.h"
#include "nsIWidget.h"
#include "gfxCrashReporterUtils.h"
using namespace mozilla::gfx;
#ifdef MOZ_WIDGET_GONK
extern nsIntRect gScreenBounds;
#endif
namespace mozilla {
namespace gl {
#define ADD_ATTR_2(_array, _k, _v) do { \
(_array).AppendElement(_k); \
(_array).AppendElement(_v); \
} while (0)
#define ADD_ATTR_1(_array, _k) do { \
(_array).AppendElement(_k); \
} while (0)
#ifndef MOZ_ANDROID_OMTC
static EGLSurface
CreateSurfaceForWindow(nsIWidget *aWidget, EGLConfig config);
#endif
static bool
CreateConfig(EGLConfig* aConfig);
// append three zeros at the end of attribs list to work around
// EGL implementation bugs that iterate until they find 0, instead of
// EGL_NONE. See bug 948406.
#define EGL_ATTRIBS_LIST_SAFE_TERMINATION_WORKING_AROUND_BUGS \
LOCAL_EGL_NONE, 0, 0, 0
static EGLint gTerminationAttribs[] = {
EGL_ATTRIBS_LIST_SAFE_TERMINATION_WORKING_AROUND_BUGS
};
static EGLint gContextAttribs[] = {
LOCAL_EGL_CONTEXT_CLIENT_VERSION, 2,
EGL_ATTRIBS_LIST_SAFE_TERMINATION_WORKING_AROUND_BUGS
};
static EGLint gContextAttribsRobustness[] = {
LOCAL_EGL_CONTEXT_CLIENT_VERSION, 2,
//LOCAL_EGL_CONTEXT_ROBUST_ACCESS_EXT, LOCAL_EGL_TRUE,
LOCAL_EGL_CONTEXT_RESET_NOTIFICATION_STRATEGY_EXT, LOCAL_EGL_LOSE_CONTEXT_ON_RESET_EXT,
EGL_ATTRIBS_LIST_SAFE_TERMINATION_WORKING_AROUND_BUGS
};
static int
next_power_of_two(int v)
{
v--;
v |= v >> 1;
v |= v >> 2;
v |= v >> 4;
v |= v >> 8;
v |= v >> 16;
v++;
return v;
}
static bool
is_power_of_two(int v)
{
NS_ASSERTION(v >= 0, "bad value");
if (v == 0)
return true;
return (v & (v-1)) == 0;
}
class GLContextEGL : public GLContext
{
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)
, mCurSurface(surface)
, mContext(context)
, mPlatformContext(nullptr)
, mThebesSurface(nullptr)
, mBound(false)
, mIsPBuffer(false)
, mIsDoubleBuffered(false)
, mCanBindToTexture(false)
, mShareWithEGLImage(false)
, mTemporaryEGLImageTexture(0)
{
// 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());
#endif
#if defined(MOZ_WIDGET_GONK)
if (!mIsOffscreen) {
mHwc = HwcComposer2D::GetInstance();
MOZ_ASSERT(!mHwc->Initialized());
if (mHwc->Init(EGL_DISPLAY(), mSurface)) {
NS_WARNING("HWComposer initialization failed!");
mHwc = nullptr;
}
}
#endif
}
~GLContextEGL()
{
if (MakeCurrent()) {
if (mTemporaryEGLImageTexture != 0) {
fDeleteTextures(1, &mTemporaryEGLImageTexture);
mTemporaryEGLImageTexture = 0;
}
}
MarkDestroyed();
// If mGLWidget is non-null, then we've been given it by the GL context provider,
// and it's managed by the widget implementation. In this case, We can't destroy
// our contexts.
if (mPlatformContext)
return;
#ifdef DEBUG
printf_stderr("Destroying context %p surface %p on display %p\n", mContext, mSurface, EGL_DISPLAY());
#endif
sEGLLibrary.fDestroyContext(EGL_DISPLAY(), mContext);
if (mSurface && !mPlatformContext) {
sEGLLibrary.fDestroySurface(EGL_DISPLAY(), mSurface);
}
}
GLContextType GetContextType() {
return ContextTypeEGL;
}
bool 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))
#endif
if (!OpenLibrary(GLES2_LIB)) {
#if defined(XP_UNIX)
if (!OpenLibrary(GLES2_LIB2)) {
NS_WARNING("Couldn't load GLES2 LIB.");
return false;
}
#endif
}
bool current = MakeCurrent();
if (!current) {
gfx::LogFailure(NS_LITERAL_CSTRING(
"Couldn't get device attachments for device."));
return false;
}
SetupLookupFunction();
if (!InitWithPrefix("gl", true))
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 IsDoubleBuffered() {
return mIsDoubleBuffered;
}
void SetIsDoubleBuffered(bool aIsDB) {
mIsDoubleBuffered = aIsDB;
}
virtual EGLContext GetEGLContext() {
return mContext;
}
virtual GLLibraryEGL* GetLibraryEGL() {
return &sEGLLibrary;
}
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;
}
#ifdef MOZ_WIDGET_GONK
EGLImage CreateEGLImageForNativeBuffer(void* buffer) MOZ_OVERRIDE
{
EGLint attrs[] = {
LOCAL_EGL_IMAGE_PRESERVED, LOCAL_EGL_TRUE,
LOCAL_EGL_NONE, LOCAL_EGL_NONE
};
return sEGLLibrary.fCreateImage(EGL_DISPLAY(),
EGL_NO_CONTEXT,
LOCAL_EGL_NATIVE_BUFFER_ANDROID,
buffer, attrs);
}
void DestroyEGLImage(EGLImage image) MOZ_OVERRIDE
{
sEGLLibrary.fDestroyImage(EGL_DISPLAY(), image);
}
#endif
virtual void MakeCurrent_EGLSurface(void* surf) {
EGLSurface eglSurface = (EGLSurface)surf;
if (!eglSurface)
eglSurface = mSurface;
if (eglSurface == mCurSurface)
return;
// Else, surface changed...
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();
}
mCurSurface = eglSurface;
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) {
succeeded = sEGLLibrary.fMakeCurrent(EGL_DISPLAY(),
mCurSurface, mCurSurface,
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);
#endif
}
}
}
return succeeded;
}
virtual bool IsCurrent() {
return sEGLLibrary.fGetCurrentContext() == mContext;
}
virtual bool
RenewSurface() {
sEGLLibrary.fMakeCurrent(EGL_DISPLAY(), EGL_NO_SURFACE, EGL_NO_SURFACE,
EGL_NO_CONTEXT);
if (!mSurface) {
#ifdef MOZ_ANDROID_OMTC
mSurface = mozilla::AndroidBridge::Bridge()->ProvideEGLSurface();
if (!mSurface) {
return false;
}
#else
EGLConfig config;
CreateConfig(&config);
mSurface = CreateSurfaceForWindow(nullptr, config);
#endif
}
return sEGLLibrary.fMakeCurrent(EGL_DISPLAY(),
mSurface, mSurface,
mContext);
}
virtual void
ReleaseSurface() {
if (mSurface && !mPlatformContext) {
sEGLLibrary.fMakeCurrent(EGL_DISPLAY(), EGL_NO_SURFACE, EGL_NO_SURFACE,
EGL_NO_CONTEXT);
sEGLLibrary.fDestroySurface(EGL_DISPLAY(), mSurface);
mSurface = nullptr;
}
}
bool 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 && !mPlatformContext) {
#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;
}
}
// GLContext interface - returns Tiled Texture Image in our case
virtual already_AddRefed<TextureImage>
CreateTextureImage(const nsIntSize& aSize,
TextureImage::ContentType aContentType,
GLenum aWrapMode,
TextureImage::Flags aFlags = TextureImage::NoFlags,
TextureImage::ImageFormat aImageFormat = gfxImageFormatUnknown);
// a function to generate Tiles for Tiled Texture Image
virtual already_AddRefed<TextureImage>
TileGenFunc(const nsIntSize& aSize,
TextureImage::ContentType aContentType,
TextureImage::Flags aFlags = TextureImage::NoFlags,
TextureImage::ImageFormat aImageFormat = gfxImageFormatUnknown) MOZ_OVERRIDE;
// hold a reference to the given surface
// for the lifetime of this context.
void HoldSurface(gfxASurface *aSurf) {
mThebesSurface = aSurf;
}
void SetPlatformContext(void *context) {
mPlatformContext = context;
}
EGLContext Context() {
return mContext;
}
bool BindTex2DOffscreen(GLContext *aOffscreen);
void UnbindTex2DOffscreen(GLContext *aOffscreen);
bool ResizeOffscreen(const gfxIntSize& aNewSize);
void BindOffscreenFramebuffer();
static already_AddRefed<GLContextEGL>
CreateEGLPixmapOffscreenContext(const gfxIntSize& size);
static already_AddRefed<GLContextEGL>
CreateEGLPBufferOffscreenContext(const gfxIntSize& size);
virtual SharedTextureHandle CreateSharedHandle(SharedTextureShareType shareType,
void* buffer,
SharedTextureBufferType bufferType);
virtual void UpdateSharedHandle(SharedTextureShareType shareType,
SharedTextureHandle sharedHandle);
virtual void ReleaseSharedHandle(SharedTextureShareType shareType,
SharedTextureHandle sharedHandle);
virtual bool GetSharedHandleDetails(SharedTextureShareType shareType,
SharedTextureHandle sharedHandle,
SharedHandleDetails& details);
virtual bool AttachSharedHandle(SharedTextureShareType shareType,
SharedTextureHandle sharedHandle);
protected:
friend class GLContextProviderEGL;
EGLConfig mConfig;
EGLSurface mSurface;
EGLSurface mCurSurface;
EGLContext mContext;
void *mPlatformContext;
nsRefPtr<gfxASurface> mThebesSurface;
bool mBound;
bool mIsPBuffer;
bool mIsDoubleBuffered;
bool mCanBindToTexture;
bool mShareWithEGLImage;
#ifdef MOZ_WIDGET_GONK
nsRefPtr<HwcComposer2D> mHwc;
#endif
// A dummy texture ID that can be used when we need a texture object whose
// images we're going to define with EGLImageTargetTexture2D.
GLuint mTemporaryEGLImageTexture;
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;
}
NS_WARNING("Failed to create pbuffer surface");
return nullptr;
}
return surface;
}
};
enum SharedHandleType {
SharedHandleType_Image
#ifdef MOZ_WIDGET_ANDROID
, SharedHandleType_SurfaceTexture
#endif
};
class SharedTextureHandleWrapper
{
public:
SharedTextureHandleWrapper(SharedHandleType aHandleType) : mHandleType(aHandleType)
{
}
virtual ~SharedTextureHandleWrapper()
{
}
SharedHandleType Type() { return mHandleType; }
SharedHandleType mHandleType;
};
#ifdef MOZ_WIDGET_ANDROID
class SurfaceTextureWrapper: public SharedTextureHandleWrapper
{
public:
SurfaceTextureWrapper(nsSurfaceTexture* aSurfaceTexture) :
SharedTextureHandleWrapper(SharedHandleType_SurfaceTexture)
, mSurfaceTexture(aSurfaceTexture)
{
}
virtual ~SurfaceTextureWrapper() {
mSurfaceTexture = nullptr;
}
nsSurfaceTexture* SurfaceTexture() { return mSurfaceTexture; }
nsRefPtr<nsSurfaceTexture> mSurfaceTexture;
};
#endif // MOZ_WIDGET_ANDROID
class EGLTextureWrapper : public SharedTextureHandleWrapper
{
public:
EGLTextureWrapper() :
SharedTextureHandleWrapper(SharedHandleType_Image)
, mEGLImage(nullptr)
, mSyncObject(nullptr)
{
}
// Args are the active GL context, and a texture in that GL
// context for which to create an EGLImage. After the EGLImage
// is created, the texture is unused by EGLTextureWrapper.
bool CreateEGLImage(GLContextEGL *ctx, GLuint texture) {
MOZ_ASSERT(!mEGLImage && texture && sEGLLibrary.HasKHRImageBase());
static const EGLint eglAttributes[] = {
LOCAL_EGL_NONE
};
EGLContext eglContext = (EGLContext)ctx->GetEGLContext();
mEGLImage = sEGLLibrary.fCreateImage(EGL_DISPLAY(), eglContext, LOCAL_EGL_GL_TEXTURE_2D,
(EGLClientBuffer)texture, eglAttributes);
if (!mEGLImage) {
#ifdef DEBUG
printf_stderr("Could not create EGL images: ERROR (0x%04x)\n", sEGLLibrary.fGetError());
#endif
return false;
}
return true;
}
virtual ~EGLTextureWrapper() {
if (mEGLImage) {
sEGLLibrary.fDestroyImage(EGL_DISPLAY(), mEGLImage);
mEGLImage = nullptr;
}
}
const EGLImage GetEGLImage() {
return mEGLImage;
}
// Insert a sync point on the given context, which should be the current active
// context.
bool MakeSync(GLContext *ctx) {
MOZ_ASSERT(mSyncObject == nullptr);
if (sEGLLibrary.IsExtensionSupported(GLLibraryEGL::KHR_fence_sync)) {
mSyncObject = sEGLLibrary.fCreateSync(EGL_DISPLAY(), LOCAL_EGL_SYNC_FENCE, nullptr);
// We need to flush to make sure the sync object enters the command stream;
// we can't use EGL_SYNC_FLUSH_COMMANDS_BIT at wait time, because the wait
// happens on a different thread/context.
ctx->fFlush();
}
if (mSyncObject == EGL_NO_SYNC) {
// we failed to create one, so just do a finish
ctx->fFinish();
}
return true;
}
bool WaitSync() {
if (!mSyncObject) {
// if we have no sync object, then we did a Finish() earlier
return true;
}
// wait at most 1 second; this should really be never/rarely hit
const uint64_t ns_per_ms = 1000 * 1000;
EGLTime timeout = 1000 * ns_per_ms;
EGLint result = sEGLLibrary.fClientWaitSync(EGL_DISPLAY(), mSyncObject, 0, timeout);
sEGLLibrary.fDestroySync(EGL_DISPLAY(), mSyncObject);
mSyncObject = nullptr;
return result == LOCAL_EGL_CONDITION_SATISFIED;
}
private:
EGLImage mEGLImage;
EGLSync mSyncObject;
};
void
GLContextEGL::UpdateSharedHandle(SharedTextureShareType shareType,
SharedTextureHandle sharedHandle)
{
if (shareType != SameProcess) {
NS_ERROR("Implementation not available for this sharing type");
return;
}
SharedTextureHandleWrapper* wrapper = reinterpret_cast<SharedTextureHandleWrapper*>(sharedHandle);
NS_ASSERTION(wrapper->Type() == SharedHandleType_Image, "Expected EGLImage shared handle");
NS_ASSERTION(mShareWithEGLImage, "EGLImage not supported or disabled in runtime");
EGLTextureWrapper* wrap = reinterpret_cast<EGLTextureWrapper*>(wrapper);
// We need to copy the current GLContext drawing buffer to the texture
// exported by the EGLImage. Need to save both the read FBO and the texture
// binding, because we're going to munge them to do this.
ScopedBindTexture autoTex(this, mTemporaryEGLImageTexture);
fEGLImageTargetTexture2D(LOCAL_GL_TEXTURE_2D, wrap->GetEGLImage());
// CopyTexSubImage2D, is ~2x slower than simple FBO render to texture with
// draw quads, but if we want that, we need to assure that our default
// framebuffer is texture-backed.
gfxIntSize size = OffscreenSize();
BlitFramebufferToTexture(0, mTemporaryEGLImageTexture, size, size);
// Make sure our copy is finished, so that we can be ready to draw
// in different thread GLContext. If we have KHR_fence_sync, then
// we insert a sync object, otherwise we have to do a GuaranteeResolve.
wrap->MakeSync(this);
}
SharedTextureHandle
GLContextEGL::CreateSharedHandle(SharedTextureShareType shareType,
void* buffer,
SharedTextureBufferType bufferType)
{
// Both EGLImage and SurfaceTexture only support same-process currently, but
// it's possible to make SurfaceTexture work across processes. We should do that.
if (shareType != SameProcess)
return 0;
switch (bufferType) {
#ifdef MOZ_WIDGET_ANDROID
case SharedTextureBufferType::SurfaceTexture:
if (!IsExtensionSupported(GLContext::OES_EGL_image_external)) {
NS_WARNING("Missing GL_OES_EGL_image_external");
return 0;
}
return (SharedTextureHandle) new SurfaceTextureWrapper(reinterpret_cast<nsSurfaceTexture*>(buffer));
#endif
case SharedTextureBufferType::TextureID: {
if (!mShareWithEGLImage)
return 0;
GLuint texture = (uintptr_t)buffer;
EGLTextureWrapper* tex = new EGLTextureWrapper();
if (!tex->CreateEGLImage(this, texture)) {
NS_ERROR("EGLImage creation for EGLTextureWrapper failed");
delete tex;
return 0;
}
return (SharedTextureHandle)tex;
}
default:
NS_ERROR("Unknown shared texture buffer type");
return 0;
}
}
void GLContextEGL::ReleaseSharedHandle(SharedTextureShareType shareType,
SharedTextureHandle sharedHandle)
{
if (shareType != SameProcess) {
NS_ERROR("Implementation not available for this sharing type");
return;
}
SharedTextureHandleWrapper* wrapper = reinterpret_cast<SharedTextureHandleWrapper*>(sharedHandle);
switch (wrapper->Type()) {
#ifdef MOZ_WIDGET_ANDROID
case SharedHandleType_SurfaceTexture:
delete wrapper;
break;
#endif
case SharedHandleType_Image: {
NS_ASSERTION(mShareWithEGLImage, "EGLImage not supported or disabled in runtime");
EGLTextureWrapper* wrap = (EGLTextureWrapper*)sharedHandle;
delete wrap;
break;
}
default:
NS_ERROR("Unknown shared handle type");
return;
}
}
bool GLContextEGL::GetSharedHandleDetails(SharedTextureShareType shareType,
SharedTextureHandle sharedHandle,
SharedHandleDetails& details)
{
if (shareType != SameProcess)
return false;
SharedTextureHandleWrapper* wrapper = reinterpret_cast<SharedTextureHandleWrapper*>(sharedHandle);
switch (wrapper->Type()) {
#ifdef MOZ_WIDGET_ANDROID
case SharedHandleType_SurfaceTexture: {
SurfaceTextureWrapper* surfaceWrapper = reinterpret_cast<SurfaceTextureWrapper*>(wrapper);
details.mTarget = LOCAL_GL_TEXTURE_EXTERNAL;
details.mTextureFormat = FORMAT_R8G8B8A8;
surfaceWrapper->SurfaceTexture()->GetTransformMatrix(details.mTextureTransform);
break;
}
#endif
case SharedHandleType_Image:
details.mTarget = LOCAL_GL_TEXTURE_2D;
details.mTextureFormat = FORMAT_R8G8B8A8;
break;
default:
NS_ERROR("Unknown shared handle type");
return false;
}
return true;
}
bool GLContextEGL::AttachSharedHandle(SharedTextureShareType shareType,
SharedTextureHandle sharedHandle)
{
if (shareType != SameProcess)
return false;
SharedTextureHandleWrapper* wrapper = reinterpret_cast<SharedTextureHandleWrapper*>(sharedHandle);
switch (wrapper->Type()) {
#ifdef MOZ_WIDGET_ANDROID
case SharedHandleType_SurfaceTexture: {
#ifndef DEBUG
/**
* NOTE: SurfaceTexture spams us if there are any existing GL errors, so we'll clear
* them here in order to avoid that.
*/
GetAndClearError();
#endif
SurfaceTextureWrapper* surfaceTextureWrapper = reinterpret_cast<SurfaceTextureWrapper*>(wrapper);
// FIXME: SurfaceTexture provides a transform matrix which is supposed to
// be applied to the texture coordinates. We should return that here
// so we can render correctly. Bug 775083
surfaceTextureWrapper->SurfaceTexture()->UpdateTexImage();
break;
}
#endif // MOZ_WIDGET_ANDROID
case SharedHandleType_Image: {
NS_ASSERTION(mShareWithEGLImage, "EGLImage not supported or disabled in runtime");
EGLTextureWrapper* wrap = (EGLTextureWrapper*)sharedHandle;
wrap->WaitSync();
fEGLImageTargetTexture2D(LOCAL_GL_TEXTURE_2D, wrap->GetEGLImage());
break;
}
default:
NS_ERROR("Unknown shared handle type");
return false;
}
return true;
}
bool
GLContextEGL::ResizeOffscreen(const gfxIntSize& aNewSize)
{
return ResizeScreenBuffer(aNewSize);
}
already_AddRefed<TextureImage>
GLContextEGL::CreateTextureImage(const nsIntSize& aSize,
TextureImage::ContentType aContentType,
GLenum aWrapMode,
TextureImage::Flags aFlags,
TextureImage::ImageFormat aImageFormat)
{
nsRefPtr<TextureImage> t = new gl::TiledTextureImage(this, aSize, aContentType, aFlags, aImageFormat);
return t.forget();
}
already_AddRefed<TextureImage>
GLContextEGL::TileGenFunc(const nsIntSize& aSize,
TextureImage::ContentType aContentType,
TextureImage::Flags aFlags,
TextureImage::ImageFormat aImageFormat)
{