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pjs/gfx/gl/GLContextProviderEGL.cpp

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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Mozilla Corporation.
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Vladimir Vukicevic <vladimir@pobox.com>
* Mark Steele <mwsteele@gmail.com>
* Bas Schouten <bschouten@mozilla.com>
* Frederic Plourde <frederic.plourde@collabora.co.uk>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "mozilla/Util.h"
// please add new includes below Qt, otherwise it break Qt build due malloc wrapper conflicts
#if defined(XP_UNIX)
#ifdef MOZ_WIDGET_GTK2
#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_QT)
#include <QtOpenGL/QGLContext>
#define GLdouble_defined 1
// we're using default display for now
#define GET_NATIVE_WINDOW(aWidget) (EGLNativeWindowType)static_cast<QWidget*>(aWidget->GetNativeData(NS_NATIVE_SHELLWIDGET))->winId()
#elif defined(MOZ_WIDGET_GONK)
#define GET_NATIVE_WINDOW(aWidget) ((EGLNativeWindowType)aWidget->GetNativeData(NS_NATIVE_WINDOW))
#endif
#if defined(MOZ_X11)
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include "mozilla/X11Util.h"
#include "gfxXlibSurface.h"
#endif
#if defined(ANDROID)
/* from widget */
#if defined(MOZ_WIDGET_ANDROID)
#include "AndroidBridge.h"
#endif
#include <android/log.h>
#endif
#define GLES2_LIB "libGLESv2.so"
#define GLES2_LIB2 "libGLESv2.so.2"
#elif defined(XP_WIN)
#include "nsILocalFile.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 = NULL)
: mWnd(aWnd)
{
}
~AutoDestroyHWND() {
if (mWnd) {
::DestroyWindow(mWnd);
}
}
operator HWND() {
return mWnd;
}
HWND forget() {
HWND w = mWnd;
mWnd = NULL;
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 "nsIScreen.h"
#include "nsIScreenManager.h"
#include "gfxUtils.h"
#include "gfxFailure.h"
#include "gfxASurface.h"
#include "gfxImageSurface.h"
#include "gfxPlatform.h"
#include "GLContextProvider.h"
#include "GLLibraryEGL.h"
#include "nsDebug.h"
#include "nsThreadUtils.h"
#include "EGLUtils.h"
#include "nsIWidget.h"
#include "gfxCrashReporterUtils.h"
#ifdef MOZ_PLATFORM_MAEMO
static bool gUseBackingSurface = true;
#else
static bool gUseBackingSurface = false;
#endif
#ifdef MOZ_WIDGET_GONK
extern nsIntRect gScreenBounds;
#endif
namespace mozilla {
namespace gl {
static GLLibraryEGL sEGLLibrary;
#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)
static EGLSurface
CreateSurfaceForWindow(nsIWidget *aWidget, EGLConfig config);
static bool
CreateConfig(EGLConfig* aConfig);
#ifdef MOZ_X11
#ifdef MOZ_EGL_XRENDER_COMPOSITE
static EGLSurface
CreateBasicEGLSurfaceForXSurface(gfxASurface* aSurface, EGLConfig* aConfig);
#endif
static EGLConfig
CreateEGLSurfaceForXSurface(gfxASurface* aSurface, EGLConfig* aConfig = nsnull, EGLenum aDepth = 0);
#endif
static EGLint gContextAttribs[] = {
LOCAL_EGL_CONTEXT_CLIENT_VERSION, 2,
LOCAL_EGL_NONE
};
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,
LOCAL_EGL_NONE
};
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 ContextFormat& format,
EGLSurface surface,
EGLConfig config,
GLContextEGL *shareContext,
bool aIsOffscreen = false)
{
EGLContext context;
context = sEGLLibrary.fCreateContext(EGL_DISPLAY(),
config,
shareContext ? shareContext->mContext : EGL_NO_CONTEXT,
sEGLLibrary.HasRobustness() ? gContextAttribsRobustness
: gContextAttribs);
if (!context) {
if (shareContext) {
shareContext = nsnull;
context = sEGLLibrary.fCreateContext(EGL_DISPLAY(),
config,
EGL_NO_CONTEXT,
sEGLLibrary.HasRobustness() ? gContextAttribsRobustness
: gContextAttribs);
if (!context) {
NS_WARNING("Failed to create EGLContext!");
return nsnull;
}
}
}
nsRefPtr<GLContextEGL> glContext =
new GLContextEGL(format, shareContext, config,
surface, context, aIsOffscreen);
if (!glContext->Init())
return nsnull;
return glContext.forget();
}
public:
GLContextEGL(const ContextFormat& aFormat,
GLContext *aShareContext,
EGLConfig aConfig,
EGLSurface aSurface,
EGLContext aContext,
bool aIsOffscreen = false)
: GLContext(aFormat, aIsOffscreen, aShareContext)
, mConfig(aConfig)
, mSurface(aSurface), mContext(aContext)
, mPlatformContext(nsnull)
, mThebesSurface(nsnull)
, mBound(false)
, mIsPBuffer(false)
, mIsDoubleBuffered(false)
, mCanBindToTexture(false)
{
// any EGL contexts will always be GLESv2
SetIsGLES2(true);
#ifdef DEBUG
printf_stderr("Initializing context %p surface %p on display %p\n", mContext, mSurface, EGL_DISPLAY());
#endif
}
~GLContextEGL()
{
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;
}
bool ok = InitWithPrefix("gl", true);
PR_STATIC_ASSERT(sizeof(GLint) >= sizeof(int32_t));
mMaxTextureImageSize = PR_INT32_MAX;
#if 0
if (ok) {
EGLint v;
sEGLLibrary.fQueryContext(EGL_DISPLAY(), mContext, LOCAL_EGL_RENDER_BUFFER, &v);
if (v == LOCAL_EGL_BACK_BUFFER)
mIsDoubleBuffered = true;
}
#endif
if (ok)
InitFramebuffers();
return ok;
}
bool IsDoubleBuffered() {
return mIsDoubleBuffered;
}
void SetIsDoubleBuffered(bool aIsDB) {
mIsDoubleBuffered = aIsDB;
}
bool SupportsRobustness()
{
return sEGLLibrary.HasRobustness();
}
virtual bool IsANGLE()
{
return sEGLLibrary.IsANGLE();
}
#if defined(MOZ_X11) && defined(MOZ_EGL_XRENDER_COMPOSITE)
gfxASurface* GetOffscreenPixmapSurface()
{
return mThebesSurface;
}
virtual bool WaitNative() {
return sEGLLibrary.fWaitNative(LOCAL_EGL_CORE_NATIVE_ENGINE);
}
#endif
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;
}
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.
#ifndef MOZ_WIDGET_QT
if (!mSurface) {
// We need to be able to bind NO_SURFACE when we don't
// have access to a surface. We won't be drawing to the screen
// but we will be able to do things like resource releases.
succeeded = sEGLLibrary.fMakeCurrent(EGL_DISPLAY(),
EGL_NO_SURFACE, EGL_NO_SURFACE,
EGL_NO_CONTEXT);
if (!succeeded && sEGLLibrary.fGetError() == LOCAL_EGL_CONTEXT_LOST) {
mContextLost = true;
NS_WARNING("EGL context has been lost.");
}
NS_ASSERTION(succeeded, "Failed to make GL context current!");
return succeeded;
}
#endif
if (aForce || sEGLLibrary.fGetCurrentContext() != mContext) {
#ifdef MOZ_WIDGET_QT
// Shared Qt GL context need to be informed about context switch
if (mSharedContext) {
QGLContext* qglCtx = static_cast<QGLContext*>(static_cast<GLContextEGL*>(mSharedContext.get())->mPlatformContext);
if (qglCtx) {
qglCtx->doneCurrent();
}
}
#endif
succeeded = sEGLLibrary.fMakeCurrent(EGL_DISPLAY(),
mSurface, mSurface,
mContext);
if (!succeeded && sEGLLibrary.fGetError() == LOCAL_EGL_CONTEXT_LOST) {
mContextLost = true;
NS_WARNING("EGL context has been lost.");
}
NS_ASSERTION(succeeded, "Failed to make GL context current!");
}
return succeeded;
}
#ifdef MOZ_WIDGET_QT
virtual bool
RenewSurface() {
/* We don't support renewing on QT because we don't create the surface ourselves */
return false;
}
#else
virtual bool
RenewSurface() {
ReleaseSurface();
EGLConfig config;
CreateConfig(&config);
mSurface = CreateSurfaceForWindow(NULL, config);
return sEGLLibrary.fMakeCurrent(EGL_DISPLAY(),
mSurface, mSurface,
mContext);
}
#endif
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 = NULL;
}
}
bool SetupLookupFunction()
{
mLookupFunc = (PlatformLookupFunction)sEGLLibrary.mSymbols.fGetProcAddress;
return true;
}
void *GetNativeData(NativeDataType aType)
{
switch (aType) {
case NativeGLContext:
return mContext;
default:
return nsnull;
}
}
bool SwapBuffers()
{
if (mSurface && !mPlatformContext) {
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,
bool aUseNearestFilter=false);
// a function to generate Tiles for Tiled Texture Image
virtual already_AddRefed<TextureImage>
TileGenFunc(const nsIntSize& aSize,
TextureImage::ContentType aContentType,
bool aUseNearestFilter = false);
// 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& aSize,
const ContextFormat& aFormat,
bool aShare);
#if defined(MOZ_X11) && defined(MOZ_EGL_XRENDER_COMPOSITE)
static already_AddRefed<GLContextEGL>
CreateBasicEGLPixmapOffscreenContext(const gfxIntSize& aSize,
const ContextFormat& aFormat);
bool ResizeOffscreenPixmapSurface(const gfxIntSize& aNewSize);
#endif
static already_AddRefed<GLContextEGL>
CreateEGLPBufferOffscreenContext(const gfxIntSize& aSize,
const ContextFormat& aFormat,
bool bufferUnused = false);
void SetOffscreenSize(const gfxIntSize &aRequestedSize,
const gfxIntSize &aActualSize)
{
mOffscreenSize = aRequestedSize;
mOffscreenActualSize = aActualSize;
}
void *GetD3DShareHandle() {
if (!sEGLLibrary.HasANGLESurfaceD3DTexture2DShareHandle()) {
return nsnull;
}
void *h = nsnull;
#ifndef EGL_D3D_TEXTURE_2D_SHARE_HANDLE_ANGLE
#define EGL_D3D_TEXTURE_2D_SHARE_HANDLE_ANGLE 0x3200
#endif
if (!sEGLLibrary.fQuerySurfacePointerANGLE(EGL_DISPLAY(), mSurface,
EGL_D3D_TEXTURE_2D_SHARE_HANDLE_ANGLE, (void**) &h))
{
return nsnull;
}
return h;
}
protected:
friend class GLContextProviderEGL;
EGLConfig mConfig;
EGLSurface mSurface;
EGLContext mContext;
void *mPlatformContext;
nsRefPtr<gfxASurface> mThebesSurface;
bool mBound;
bool mIsPBuffer;
bool mIsDoubleBuffered;
bool mCanBindToTexture;
static EGLSurface CreatePBufferSurfaceTryingPowerOfTwo(EGLConfig config,
EGLenum bindToTextureFormat,
gfxIntSize& pbsize)
{
nsTArray<EGLint> pbattrs(16);
EGLSurface surface = nsnull;
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);
}
pbattrs.AppendElement(LOCAL_EGL_NONE);
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 nsnull;
}
return surface;
}
};
bool
GLContextEGL::BindTex2DOffscreen(GLContext *aOffscreen)
{
if (aOffscreen->GetContextType() != ContextTypeEGL) {
NS_WARNING("non-EGL context");
return false;
}
GLContextEGL *offs = static_cast<GLContextEGL*>(aOffscreen);
if (offs->mCanBindToTexture) {
bool ok = sEGLLibrary.fBindTexImage(EGL_DISPLAY(),
offs->mSurface,
LOCAL_EGL_BACK_BUFFER);
return ok;
}
if (offs->mOffscreenTexture) {
if (offs->GetSharedContext() != GLContextProviderEGL::GetGlobalContext())
{
NS_WARNING("offscreen FBO context can only be bound with context sharing!");
return false;
}
fBindTexture(LOCAL_GL_TEXTURE_2D, offs->mOffscreenTexture);
return true;
}
NS_WARNING("don't know how to bind this!");
return false;
}
void
GLContextEGL::UnbindTex2DOffscreen(GLContext *aOffscreen)
{
NS_ASSERTION(aOffscreen->GetContextType() == ContextTypeEGL, "wrong type");
GLContextEGL *offs = static_cast<GLContextEGL*>(aOffscreen);
if (offs->mCanBindToTexture) {
sEGLLibrary.fReleaseTexImage(EGL_DISPLAY(),
offs->mSurface,
LOCAL_EGL_BACK_BUFFER);
}
}
bool
GLContextEGL::ResizeOffscreen(const gfxIntSize& aNewSize)
{
if (!IsOffscreenSizeAllowed(aNewSize))
return false;
if (mIsPBuffer) {
gfxIntSize pbsize(aNewSize);
EGLSurface surface =
CreatePBufferSurfaceTryingPowerOfTwo(mConfig,
mCanBindToTexture
? (mCreationFormat.minAlpha
? LOCAL_EGL_TEXTURE_RGBA
: LOCAL_EGL_TEXTURE_RGB)
: LOCAL_EGL_NONE,
pbsize);
if (!surface) {
NS_WARNING("Failed to resize pbuffer");
return false;
}
if (!ResizeOffscreenFBO(pbsize, false))
return false;
SetOffscreenSize(aNewSize, pbsize);
if (mSurface && !mPlatformContext) {
sEGLLibrary.fDestroySurface(EGL_DISPLAY(), mSurface);
}
mSurface = surface;
MakeCurrent(true);
ClearSafely();
return true;
}
#ifdef MOZ_X11
if (gUseBackingSurface && mThebesSurface) {
if (aNewSize == mThebesSurface->GetSize()) {
return true;
}
EGLNativePixmapType pixmap = 0;
nsRefPtr<gfxXlibSurface> xsurface =
gfxXlibSurface::Create(DefaultScreenOfDisplay(DefaultXDisplay()),
gfxXlibSurface::FindRenderFormat(DefaultXDisplay(),
gfxASurface::ImageFormatRGB24),
aNewSize);
// Make sure that pixmap created and ready for GL rendering
XSync(DefaultXDisplay(), False);
if (xsurface->CairoStatus() != 0) {
return false;
}
pixmap = (EGLNativePixmapType)xsurface->XDrawable();
if (!pixmap) {
return false;
}
EGLSurface surface;
EGLConfig config = 0;
int depth = gfxUtils::ImageFormatToDepth(gfxPlatform::GetPlatform()->GetOffscreenFormat());
surface = CreateEGLSurfaceForXSurface(xsurface, &config, depth);
if (!config) {
return false;
}
if (!ResizeOffscreenFBO(aNewSize, true))
return false;
mThebesSurface = xsurface;
return true;
}
#endif
#if defined(MOZ_X11) && defined(MOZ_EGL_XRENDER_COMPOSITE)
if (ResizeOffscreenPixmapSurface(aNewSize)) {
if (ResizeOffscreenFBO(aNewSize, true))
return true;
}
#endif
return ResizeOffscreenFBO(aNewSize, true);
}
static GLContextEGL *
GetGlobalContextEGL()
{
return static_cast<GLContextEGL*>(GLContextProviderEGL::GetGlobalContext());
}
static GLenum
GLFormatForImage(gfxASurface::gfxImageFormat aFormat)
{
switch (aFormat) {
case gfxASurface::ImageFormatARGB32:
case gfxASurface::ImageFormatRGB24:
// Thebes only supports RGBX, not packed RGB.
return LOCAL_GL_RGBA;
case gfxASurface::ImageFormatRGB16_565:
return LOCAL_GL_RGB;
default:
NS_WARNING("Unknown GL format for Image format");
}
return 0;
}
static GLenum
GLTypeForImage(gfxASurface::gfxImageFormat aFormat)
{
switch (aFormat) {
case gfxASurface::ImageFormatARGB32:
case gfxASurface::ImageFormatRGB24:
return LOCAL_GL_UNSIGNED_BYTE;
case gfxASurface::ImageFormatRGB16_565:
return LOCAL_GL_UNSIGNED_SHORT_5_6_5;
default:
NS_WARNING("Unknown GL format for Image format");
}
return 0;
}
class TextureImageEGL
: public TextureImage
{
public:
TextureImageEGL(GLuint aTexture,
const nsIntSize& aSize,
GLenum aWrapMode,
ContentType aContentType,
GLContext* aContext)
: TextureImage(aSize, aWrapMode, aContentType)
, mGLContext(aContext)
, mUpdateFormat(gfxASurface::ImageFormatUnknown)
, mSurface(nsnull)
, mConfig(nsnull)
, mTexture(aTexture)
, mImageKHR(nsnull)
, mTextureState(Created)
, mBound(false)
, mIsLocked(false)
{
mUpdateFormat = gfxASurface::FormatFromContent(GetContentType());
if (gUseBackingSurface) {
if (mUpdateFormat != gfxASurface::ImageFormatARGB32) {
mShaderType = RGBXLayerProgramType;
} else {
mShaderType = RGBALayerProgramType;
}
Resize(aSize);
} else {
if (mUpdateFormat == gfxASurface::ImageFormatRGB16_565) {
mShaderType = RGBXLayerProgramType;
} else if (mUpdateFormat == gfxASurface::ImageFormatRGB24) {
// RGB24 means really RGBX for Thebes, which means we have to
// use the right shader and ignore the uninitialized alpha
// value.
mShaderType = BGRXLayerProgramType;
} else {
mShaderType = BGRALayerProgramType;
}
}
}
virtual ~TextureImageEGL()
{
GLContext *ctx = mGLContext;
if (ctx->IsDestroyed() || !ctx->IsOwningThreadCurrent()) {
ctx = ctx->GetSharedContext();
}
// If we have a context, then we need to delete the texture;
// if we don't have a context (either real or shared),
// then they went away when the contex was deleted, because it
// was the only one that had access to it.
if (ctx && !ctx->IsDestroyed()) {
ctx->MakeCurrent();
ctx->fDeleteTextures(1, &mTexture);
ReleaseTexImage();
DestroyEGLSurface();
}
}
virtual void GetUpdateRegion(nsIntRegion& aForRegion)
{
if (mTextureState != Valid) {
// if the texture hasn't been initialized yet, force the
// client to paint everything
aForRegion = nsIntRect(nsIntPoint(0, 0), mSize);
} else if (!mBackingSurface) {
// We can only draw a rectangle, not subregions due to
// the way that our texture upload functions work. If
// needed, we /could/ do multiple texture uploads if we have
// non-overlapping rects, but that's a tradeoff.
aForRegion = nsIntRegion(aForRegion.GetBounds());
}
}
virtual gfxASurface* BeginUpdate(nsIntRegion& aRegion)
{
NS_ASSERTION(!mUpdateSurface, "BeginUpdate() without EndUpdate()?");
// determine the region the client will need to repaint
GetUpdateRegion(aRegion);
mUpdateRect = aRegion.GetBounds();
//printf_stderr("BeginUpdate with updateRect [%d %d %d %d]\n", mUpdateRect.x, mUpdateRect.y, mUpdateRect.width, mUpdateRect.height);
if (!nsIntRect(nsIntPoint(0, 0), mSize).Contains(mUpdateRect)) {
NS_ERROR("update outside of image");
return NULL;
}
if (mBackingSurface) {
if (sEGLLibrary.HasKHRLockSurface()) {
mUpdateSurface = GetLockSurface();
} else {
mUpdateSurface = mBackingSurface;
}
return mUpdateSurface;
}
//printf_stderr("creating image surface %dx%d format %d\n", mUpdateRect.width, mUpdateRect.height, mUpdateFormat);
mUpdateSurface =
new gfxImageSurface(gfxIntSize(mUpdateRect.width, mUpdateRect.height),
mUpdateFormat);
mUpdateSurface->SetDeviceOffset(gfxPoint(-mUpdateRect.x, -mUpdateRect.y));
return mUpdateSurface;
}
virtual void EndUpdate()
{
NS_ASSERTION(!!mUpdateSurface, "EndUpdate() without BeginUpdate()?");
if (mIsLocked) {
UnlockSurface();
mTextureState = Valid;
mUpdateSurface = nsnull;
return;
}
if (mBackingSurface && mUpdateSurface == mBackingSurface) {
#ifdef MOZ_X11
if (mBackingSurface->GetType() == gfxASurface::SurfaceTypeXlib) {
XSync(DefaultXDisplay(), False);
}
#endif
mBackingSurface->SetDeviceOffset(gfxPoint(0, 0));
mTextureState = Valid;
mUpdateSurface = nsnull;
return;
}
//printf_stderr("EndUpdate: slow path");
// This is the slower path -- we didn't have any way to set up
// a fast mapping between our cairo target surface and the GL
// texture, so we have to upload data.
// Undo the device offset that BeginUpdate set; doesn't much
// matter for us here, but important if we ever do anything
// directly with the surface.
mUpdateSurface->SetDeviceOffset(gfxPoint(0, 0));
nsRefPtr<gfxImageSurface> uploadImage = nsnull;
gfxIntSize updateSize(mUpdateRect.width, mUpdateRect.height);
NS_ASSERTION(mUpdateSurface->GetType() == gfxASurface::SurfaceTypeImage &&
mUpdateSurface->GetSize() == updateSize,
"Upload image isn't an image surface when one is expected, or is wrong size!");
uploadImage = static_cast<gfxImageSurface*>(mUpdateSurface.get());
if (!uploadImage) {
return;
}
mGLContext->MakeCurrent();
mGLContext->fBindTexture(LOCAL_GL_TEXTURE_2D, mTexture);
if (mTextureState != Valid) {
NS_ASSERTION(mUpdateRect.x == 0 && mUpdateRect.y == 0 &&
mUpdateRect.Size() == mSize,
"Bad initial update on non-created texture!");
mGLContext->fTexImage2D(LOCAL_GL_TEXTURE_2D,
0,
GLFormatForImage(mUpdateFormat),
mUpdateRect.width,
mUpdateRect.height,
0,
GLFormatForImage(uploadImage->Format()),
GLTypeForImage(uploadImage->Format()),
uploadImage->Data());
} else {
mGLContext->fTexSubImage2D(LOCAL_GL_TEXTURE_2D,
0,
mUpdateRect.x,
mUpdateRect.y,
mUpdateRect.width,
mUpdateRect.height,
GLFormatForImage(uploadImage->Format()),
GLTypeForImage(uploadImage->Format()),
uploadImage->Data());
}
mUpdateSurface = nsnull;
mTextureState = Valid;
return; // mTexture is bound
}
virtual bool DirectUpdate(gfxASurface* aSurf, const nsIntRegion& aRegion, const nsIntPoint& aFrom /* = nsIntPoint(0, 0) */)
{
nsIntRect bounds = aRegion.GetBounds();
nsIntRegion region;
if (mTextureState != Valid) {
bounds = nsIntRect(0, 0, mSize.width, mSize.height);
region = nsIntRegion(bounds);
} else {
region = aRegion;
}
if (mBackingSurface && sEGLLibrary.HasKHRLockSurface()) {
mUpdateSurface = GetLockSurface();
if (mUpdateSurface) {
nsRefPtr<gfxContext> ctx = new gfxContext(mUpdateSurface);
gfxUtils::ClipToRegion(ctx, aRegion);
ctx->SetSource(aSurf, gfxPoint(-aFrom.x, -aFrom.y));
ctx->SetOperator(gfxContext::OPERATOR_SOURCE);
ctx->Paint();
mUpdateSurface = nsnull;
UnlockSurface();
}
} else {
mShaderType =
mGLContext->UploadSurfaceToTexture(aSurf,
region,
mTexture,
mTextureState == Created,
bounds.TopLeft() + aFrom,
false);
}
mTextureState = Valid;
return true;
}
virtual void BindTexture(GLenum aTextureUnit)
{
// Ensure the texture is allocated before it is used.
if (mTextureState == Created) {
Resize(mSize);
}
mGLContext->fActiveTexture(aTextureUnit);
mGLContext->fBindTexture(LOCAL_GL_TEXTURE_2D, mTexture);
mGLContext->fActiveTexture(LOCAL_GL_TEXTURE0);
}
virtual GLuint GetTextureID()
{
// Ensure the texture is allocated before it is used.
if (mTextureState == Created) {
Resize(mSize);
}
return mTexture;
};
virtual bool InUpdate() const { return !!mUpdateSurface; }
virtual void Resize(const nsIntSize& aSize)
{
NS_ASSERTION(!mUpdateSurface, "Resize() while in update?");
if (mSize == aSize && mTextureState != Created)
return;
mGLContext->fBindTexture(LOCAL_GL_TEXTURE_2D, mTexture);
// Try to generate a backin surface first if we have the ability
if (gUseBackingSurface) {
CreateBackingSurface(gfxIntSize(aSize.width, aSize.height));
}
if (!mBackingSurface) {
// If we don't have a backing surface or failed to obtain one,
// use the GL Texture failsafe
mGLContext->fTexImage2D(LOCAL_GL_TEXTURE_2D,
0,
GLFormatForImage(mUpdateFormat),
aSize.width,
aSize.height,
0,
GLFormatForImage(mUpdateFormat),
GLTypeForImage(mUpdateFormat),
NULL);
}
mTextureState = Allocated;
mSize = aSize;
}
bool BindTexImage()
{
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;
EGLBoolean success =
sEGLLibrary.fReleaseTexImage(EGL_DISPLAY(),
(EGLSurface)mSurface,
LOCAL_EGL_BACK_BUFFER);
if (success == LOCAL_EGL_FALSE)
return false;
mBound = false;
return true;
}
virtual already_AddRefed<gfxImageSurface> GetLockSurface()
{
if (mIsLocked) {
NS_WARNING("Can't lock surface twice");
return nsnull;
}
if (!sEGLLibrary.HasKHRLockSurface()) {
NS_WARNING("GetLockSurface called, but no EGL_KHR_lock_surface extension!");
return nsnull;
}
if (!CreateEGLSurface(mBackingSurface)) {
NS_WARNING("Failed to create EGL surface");
return nsnull;
}
static EGLint lock_attribs[] = {
LOCAL_EGL_MAP_PRESERVE_PIXELS_KHR, LOCAL_EGL_TRUE,
LOCAL_EGL_LOCK_USAGE_HINT_KHR, LOCAL_EGL_READ_SURFACE_BIT_KHR | LOCAL_EGL_WRITE_SURFACE_BIT_KHR,
LOCAL_EGL_NONE
};
sEGLLibrary.fLockSurfaceKHR(EGL_DISPLAY(), mSurface, lock_attribs);
mIsLocked = true;
unsigned char *data = nsnull;
int pitch = 0;
int pixsize = 0;
sEGLLibrary.fQuerySurface(EGL_DISPLAY(), mSurface, LOCAL_EGL_BITMAP_POINTER_KHR, (EGLint*)&data);
sEGLLibrary.fQuerySurface(EGL_DISPLAY(), mSurface, LOCAL_EGL_BITMAP_PITCH_KHR, &pitch);
sEGLLibrary.fQuerySurface(EGL_DISPLAY(), mSurface, LOCAL_EGL_BITMAP_PIXEL_SIZE_KHR, &pixsize);
nsRefPtr<gfxImageSurface> sharedImage =
new gfxImageSurface(data,
mBackingSurface->GetSize(),
pitch,
mUpdateFormat);
return sharedImage.forget();
}
virtual void UnlockSurface()
{
if (!mIsLocked) {
NS_WARNING("UnlockSurface called, surface not locked!");
return;
}
sEGLLibrary.fUnlockSurfaceKHR(EGL_DISPLAY(), mSurface);
mIsLocked = false;
}
virtual already_AddRefed<gfxASurface> GetBackingSurface()
{
nsRefPtr<gfxASurface> copy = mBackingSurface;
return copy.forget();
}
virtual bool CreateEGLSurface(gfxASurface* aSurface)
{
#ifdef MOZ_X11
if (!aSurface) {
NS_WARNING("no surface");
return false;
}
if (aSurface->GetType() != gfxASurface::SurfaceTypeXlib) {
NS_WARNING("wrong surface type, must be xlib");
return false;
}
if (mSurface) {
return true;
}
EGLSurface surface = CreateEGLSurfaceForXSurface(aSurface, &mConfig);
if (!surface) {
NS_WARNING("couldn't find X config for surface");
return false;
}
mSurface = surface;
return true;
#else
return false;
#endif
}
virtual void DestroyEGLSurface(void)
{
if (!mSurface)
return;
sEGLLibrary.fDestroySurface(EGL_DISPLAY(), mSurface);
mSurface = nsnull;
}
virtual bool CreateBackingSurface(const gfxIntSize& aSize)
{
ReleaseTexImage();
DestroyEGLSurface();
mBackingSurface = nsnull;
#ifdef MOZ_X11
Display* dpy = DefaultXDisplay();
XRenderPictFormat* renderFMT =
gfxXlibSurface::FindRenderFormat(dpy, mUpdateFormat);
nsRefPtr<gfxXlibSurface> xsurface =
gfxXlibSurface::Create(DefaultScreenOfDisplay(dpy),
renderFMT,
gfxIntSize(aSize.width, aSize.height));
XSync(dpy, False);
mConfig = nsnull;
if (sEGLLibrary.HasKHRImagePixmap() && sEGLLibrary.HasKHRImageTexture2D()) {
mImageKHR =
sEGLLibrary.fCreateImageKHR(EGL_DISPLAY(),
EGL_NO_CONTEXT,
LOCAL_EGL_NATIVE_PIXMAP_KHR,
(EGLClientBuffer)xsurface->XDrawable(),
NULL);
if (!mImageKHR) {
printf_stderr("couldn't create EGL image: ERROR (0x%04x)\n", sEGLLibrary.fGetError());
return false;
}
mGLContext->fBindTexture(LOCAL_GL_TEXTURE_2D, mTexture);
sEGLLibrary.fImageTargetTexture2DOES(LOCAL_GL_TEXTURE_2D, mImageKHR);
sEGLLibrary.fDestroyImageKHR(EGL_DISPLAY(), mImageKHR);
mImageKHR = NULL;
} else {
if (!CreateEGLSurface(xsurface)) {
printf_stderr("ProviderEGL Failed create EGL surface: ERROR (0x%04x)\n", sEGLLibrary.fGetError());
return false;
}
if (!BindTexImage()) {
printf_stderr("ProviderEGL Failed to bind teximage: ERROR (0x%04x)\n", sEGLLibrary.fGetError());
return false;
}
}
mBackingSurface = xsurface;
#endif
return mBackingSurface != nsnull;
}
protected:
typedef gfxASurface::gfxImageFormat ImageFormat;
GLContext* mGLContext;
nsIntRect mUpdateRect;
ImageFormat mUpdateFormat;
nsRefPtr<gfxASurface> mBackingSurface;
nsRefPtr<gfxASurface> mUpdateSurface;
EGLSurface mSurface;
EGLConfig mConfig;
GLuint mTexture;
EGLImageKHR mImageKHR;
TextureState mTextureState;
bool mBound;
bool mIsLocked;
virtual void ApplyFilter()
{
mGLContext->ApplyFilterToBoundTexture(mFilter);
}
};
already_AddRefed<TextureImage>
GLContextEGL::CreateTextureImage(const nsIntSize& aSize,
TextureImage::ContentType aContentType,
GLenum aWrapMode,
bool aUseNearestFilter)
{
nsRefPtr<TextureImage> t = new gl::TiledTextureImage(this, aSize, aContentType, aUseNearestFilter);
return t.forget();
}
already_AddRefed<TextureImage>
GLContextEGL::TileGenFunc(const nsIntSize& aSize,
TextureImage::ContentType aContentType,
bool aUseNearestFilter)
{
MakeCurrent();
GLuint texture;
fGenTextures(1, &texture);
fActiveTexture(LOCAL_GL_TEXTURE0);
fBindTexture(LOCAL_GL_TEXTURE_2D, texture);
nsRefPtr<TextureImageEGL> teximage =
new TextureImageEGL(texture, aSize, LOCAL_GL_CLAMP_TO_EDGE, aContentType, this);
GLint texfilter = aUseNearestFilter ? LOCAL_GL_NEAREST : LOCAL_GL_LINEAR;
fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_MIN_FILTER, texfilter);
fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_MAG_FILTER, texfilter);
fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_WRAP_S, LOCAL_GL_CLAMP_TO_EDGE);
fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_WRAP_T, LOCAL_GL_CLAMP_TO_EDGE);
return teximage.forget();
}
inline static ContextFormat
DepthToGLFormat(int aDepth)
{
switch (aDepth) {
case 32:
return ContextFormat::BasicRGBA32;
case 24:
return ContextFormat::BasicRGB24;
case 16:
return ContextFormat::BasicRGB16_565;
default:
break;
}
return ContextFormat::BasicRGBA32;
}
static nsRefPtr<GLContext> gGlobalContext;
static const EGLint kEGLConfigAttribsRGB16[] = {
LOCAL_EGL_SURFACE_TYPE, LOCAL_EGL_WINDOW_BIT,
LOCAL_EGL_RENDERABLE_TYPE, LOCAL_EGL_OPENGL_ES2_BIT,
LOCAL_EGL_RED_SIZE, 5,
LOCAL_EGL_GREEN_SIZE, 6,
LOCAL_EGL_BLUE_SIZE, 5,
LOCAL_EGL_ALPHA_SIZE, 0,
LOCAL_EGL_NONE
};
static const EGLint kEGLConfigAttribsRGBA32[] = {
LOCAL_EGL_SURFACE_TYPE, LOCAL_EGL_WINDOW_BIT,
LOCAL_EGL_RENDERABLE_TYPE, LOCAL_EGL_OPENGL_ES2_BIT,
LOCAL_EGL_RED_SIZE, 8,
LOCAL_EGL_GREEN_SIZE, 8,
LOCAL_EGL_BLUE_SIZE, 8,
LOCAL_EGL_ALPHA_SIZE, 8,
LOCAL_EGL_NONE
};
static bool
CreateConfig(EGLConfig* aConfig, PRInt32 depth)
{
EGLConfig configs[64];
const EGLint* attribs = depth == 16 ? kEGLConfigAttribsRGB16 :
kEGLConfigAttribsRGBA32;
EGLint ncfg = ArrayLength(configs);
if (!sEGLLibrary.fChooseConfig(EGL_DISPLAY(), attribs,
configs, ncfg, &ncfg) ||
ncfg < 1) {
return false;
}
for (int j = 0; j < ncfg; ++j) {
EGLConfig config = configs[j];
EGLint r, g, b, a;
if (sEGLLibrary.fGetConfigAttrib(EGL_DISPLAY(), config,
LOCAL_EGL_RED_SIZE, &r) &&
sEGLLibrary.fGetConfigAttrib(EGL_DISPLAY(), config,
LOCAL_EGL_GREEN_SIZE, &g) &&
sEGLLibrary.fGetConfigAttrib(EGL_DISPLAY(), config,
LOCAL_EGL_BLUE_SIZE, &b) &&
sEGLLibrary.fGetConfigAttrib(EGL_DISPLAY(), config,
LOCAL_EGL_ALPHA_SIZE, &a) &&
((depth == 16 && r == 5 && g == 6 && b == 5) ||
(depth == 24 && r == 8 && g == 8 && b == 8 && a == 8)))
{
*aConfig = config;
return true;
}
}
return false;
}
static int
GetScreenDepth()
{
nsCOMPtr<nsIScreenManager> screenMgr = do_GetService("@mozilla.org/gfx/screenmanager;1");
nsCOMPtr<nsIScreen> screen;
screenMgr->GetPrimaryScreen(getter_AddRefs(screen));
PRInt32 depth = 24;
screen->GetColorDepth(&depth);
return depth;
}
// Return true if a suitable EGLConfig was found and pass it out
// through aConfig. Return false otherwise.
//
// NB: It's entirely legal for the returned EGLConfig to be valid yet
// have the value null.
static bool
CreateConfig(EGLConfig* aConfig)
{
PRInt32 depth = GetScreenDepth();
if (!CreateConfig(aConfig, depth)) {
#ifdef MOZ_WIDGET_ANDROID
// Bug 736005
// Android doesn't always support 16 bit so also try 24 bit
if (depth == 16) {
return CreateConfig(aConfig, 24);
}
#endif
return false;
} else {
return true;
}
}
static EGLSurface
CreateSurfaceForWindow(nsIWidget *aWidget, EGLConfig config)
{
EGLSurface surface;
#ifdef DEBUG
sEGLLibrary.DumpEGLConfig(config);
#endif
#ifdef MOZ_JAVA_COMPOSITOR
surface = mozilla::AndroidBridge::Bridge()->ProvideEGLSurface();
#elif defined(MOZ_WIDGET_ANDROID)
// On Android, we have to ask Java to make the eglCreateWindowSurface
// call for us. See GLHelpers.java for a description of why.
//
// We also only have one true "window", so we just use it directly and ignore
// what was passed in.
AndroidGeckoSurfaceView& sview = mozilla::AndroidBridge::Bridge()->SurfaceView();
if (sview.isNull()) {
printf_stderr("got null surface\n");
return NULL;
}
surface = mozilla::AndroidBridge::Bridge()->
CallEglCreateWindowSurface(EGL_DISPLAY(), config, sview);
#else
surface = sEGLLibrary.fCreateWindowSurface(EGL_DISPLAY(), config, GET_NATIVE_WINDOW(aWidget), 0);
#endif
#ifdef MOZ_WIDGET_GONK
gScreenBounds.x = 0;
gScreenBounds.y = 0;
sEGLLibrary.fQuerySurface(EGL_DISPLAY(), surface, LOCAL_EGL_WIDTH, &gScreenBounds.width);
sEGLLibrary.fQuerySurface(EGL_DISPLAY(), surface, LOCAL_EGL_HEIGHT, &gScreenBounds.height);
#endif
return surface;
}
const char*
GetVendor()
{
if (!sEGLLibrary.EnsureInitialized()) {
return nsnull;
}
return reinterpret_cast<const char*>(sEGLLibrary.fQueryString(EGL_DISPLAY(), LOCAL_EGL_VENDOR));
}
already_AddRefed<GLContext>
GLContextProviderEGL::CreateForWindow(nsIWidget *aWidget)
{
EGLConfig config;
if (!sEGLLibrary.EnsureInitialized()) {
return nsnull;
}
#if defined(XP_WIN) || defined(ANDROID) || defined(MOZ_PLATFORM_MAEMO)
bool doubleBuffered = true;
#else
bool doubleBuffered = false;
#endif
void* currentContext = sEGLLibrary.fGetCurrentContext();
if (aWidget->HasGLContext() && currentContext) {
PRInt32 depth = GetScreenDepth();
void* platformContext = currentContext;
#ifdef MOZ_WIDGET_QT
QGLContext* context = const_cast<QGLContext*>(QGLContext::currentContext());
if (context && context->device()) {
depth = context->device()->depth();
}
doubleBuffered = context->format().doubleBuffer();
platformContext = context;
#endif
nsRefPtr<GLContextEGL> glContext =
new GLContextEGL(ContextFormat(DepthToGLFormat(depth)),
gGlobalContext,
NULL,
sEGLLibrary.fGetCurrentSurface(LOCAL_EGL_DRAW), // just use same surface for read and draw
currentContext,
false);
if (!glContext->Init())
return nsnull;
glContext->SetIsDoubleBuffered(doubleBuffered);
glContext->SetPlatformContext(platformContext);
if (!gGlobalContext) {
gGlobalContext = glContext;
}
return glContext.forget();
}
if (!CreateConfig(&config)) {
printf_stderr("Failed to create EGL config!\n");
return nsnull;
}
#ifdef MOZ_JAVA_COMPOSITOR
mozilla::AndroidBridge::Bridge()->RegisterCompositor();
#endif
EGLSurface surface = CreateSurfaceForWindow(aWidget, config);
if (!surface) {
return nsnull;
}
if (!sEGLLibrary.fBindAPI(LOCAL_EGL_OPENGL_ES_API)) {
sEGLLibrary.fDestroySurface(EGL_DISPLAY(), surface);
return nsnull;
}
GLContextEGL *shareContext = GetGlobalContextEGL();
nsRefPtr<GLContextEGL> glContext =
GLContextEGL::CreateGLContext(ContextFormat(ContextFormat::BasicRGB24),
surface,
config,
shareContext,
false);
if (!glContext) {
return nsnull;
}
glContext->SetIsDoubleBuffered(doubleBuffered);
return glContext.forget();
}
static void
FillPBufferAttribs(nsTArray<EGLint>& aAttrs,
const ContextFormat& aFormat,
bool aCanBindToTexture,
int aColorBitsOverride,
int aDepthBitsOverride)
{
aAttrs.Clear();
#define A1(_x) do { aAttrs.AppendElement(_x); } while (0)
#define A2(_x,_y) do { A1(_x); A1(_y); } while (0)
A2(LOCAL_EGL_RENDERABLE_TYPE, LOCAL_EGL_OPENGL_ES2_BIT);
if (aColorBitsOverride == -1) {
A2(LOCAL_EGL_RED_SIZE, aFormat.red);
A2(LOCAL_EGL_GREEN_SIZE, aFormat.green);
A2(LOCAL_EGL_BLUE_SIZE, aFormat.blue);
} else {
A2(LOCAL_EGL_RED_SIZE, aColorBitsOverride);
A2(LOCAL_EGL_GREEN_SIZE, aColorBitsOverride);
A2(LOCAL_EGL_BLUE_SIZE, aColorBitsOverride);
}
A2(LOCAL_EGL_ALPHA_SIZE, aFormat.alpha);
if (aDepthBitsOverride == -1) {
A2(LOCAL_EGL_DEPTH_SIZE, aFormat.minDepth);
} else {
A2(LOCAL_EGL_DEPTH_SIZE, aDepthBitsOverride);
}
A2(LOCAL_EGL_STENCIL_SIZE, aFormat.minStencil);
if (aCanBindToTexture) {
A2(aFormat.minAlpha ? LOCAL_EGL_BIND_TO_TEXTURE_RGBA : LOCAL_EGL_BIND_TO_TEXTURE_RGB,
LOCAL_EGL_TRUE);
}
A1(LOCAL_EGL_NONE);
#undef A1
#undef A2
}
already_AddRefed<GLContextEGL>
GLContextEGL::CreateEGLPBufferOffscreenContext(const gfxIntSize& aSize,
const ContextFormat& aFormat,
bool bufferUnused)
{
EGLConfig config;
EGLSurface surface;
EGLContext context;
bool configCanBindToTexture = true;
EGLConfig configs[64];
int numConfigs = sizeof(configs)/sizeof(EGLConfig);
int foundConfigs = 0;
// if we're running under ANGLE, we can't set BIND_TO_TEXTURE --
// it's not supported, and we have dx interop pbuffers anyway
if (sEGLLibrary.IsANGLE() || bufferUnused)
configCanBindToTexture = false;
nsTArray<EGLint> attribs(32);
int attribAttempt = 0;
int tryDepthSize = (aFormat.depth > 0) ? 24 : 0;
TRY_ATTRIBS_AGAIN:
switch (attribAttempt) {
case 0:
FillPBufferAttribs(attribs, aFormat, configCanBindToTexture, 8, tryDepthSize);
break;
case 1:
FillPBufferAttribs(attribs, aFormat, configCanBindToTexture, -1, tryDepthSize);
break;
case 2:
FillPBufferAttribs(attribs, aFormat, configCanBindToTexture, -1, -1);
break;
}
if (!sEGLLibrary.fChooseConfig(EGL_DISPLAY(),
&attribs[0],
configs, numConfigs,
&foundConfigs)
|| foundConfigs == 0)
{
if (attribAttempt < 3) {
attribAttempt++;
goto TRY_ATTRIBS_AGAIN;
}
if (configCanBindToTexture) {
NS_WARNING("No pbuffer EGL configs that can bind to texture, trying without");
configCanBindToTexture = false;
attribAttempt = 0;
goto TRY_ATTRIBS_AGAIN;
}
// no configs? no pbuffers!
NS_WARNING("Failed to select acceptable config for PBuffer creation!");
return nsnull;
}
// XXX do some smarter matching here, perhaps instead of the more complex
// minimum overrides above
config = configs[0];
#ifdef DEBUG
sEGLLibrary.DumpEGLConfig(config);
#endif
gfxIntSize pbsize(aSize);
surface = GLContextEGL::CreatePBufferSurfaceTryingPowerOfTwo(config,
configCanBindToTexture
? (aFormat.minAlpha
? LOCAL_EGL_TEXTURE_RGBA
: LOCAL_EGL_TEXTURE_RGB)
: LOCAL_EGL_NONE,
pbsize);
if (!surface) {
NS_WARNING("Failed to create PBuffer for context!");
return nsnull;
}
sEGLLibrary.fBindAPI(LOCAL_EGL_OPENGL_ES_API);
GLContextEGL* shareContext = GetGlobalContextEGL();
context = sEGLLibrary.fCreateContext(EGL_DISPLAY(),
config,
shareContext ? shareContext->mContext
: EGL_NO_CONTEXT,
sEGLLibrary.HasRobustness() ? gContextAttribsRobustness
: gContextAttribs);
if (!context) {
NS_WARNING("Failed to create GLContext from PBuffer");
sEGLLibrary.fDestroySurface(EGL_DISPLAY(), surface);
return nsnull;
}
nsRefPtr<GLContextEGL> glContext = new GLContextEGL(aFormat, shareContext,
config, surface, context,
true);
if (!glContext->Init()) {
NS_WARNING("Failed to initialize GLContext!");
return nsnull;
}
glContext->mCanBindToTexture = configCanBindToTexture;
if (!bufferUnused) { // We *are* using the buffer
glContext->SetOffscreenSize(aSize, pbsize);
glContext->mIsPBuffer = true;
}
return glContext.forget();
}
#ifdef MOZ_X11
EGLSurface
CreateEGLSurfaceForXSurface(gfxASurface* aSurface, EGLConfig* aConfig, EGLenum aDepth)
{
gfxXlibSurface* xsurface = static_cast<gfxXlibSurface*>(aSurface);
bool opaque =
aSurface->GetContentType() == gfxASurface::CONTENT_COLOR;
static EGLint pixmap_config_rgb[] = {
LOCAL_EGL_TEXTURE_TARGET, LOCAL_EGL_TEXTURE_2D,
LOCAL_EGL_TEXTURE_FORMAT, LOCAL_EGL_TEXTURE_RGB,
LOCAL_EGL_NONE
};
static EGLint pixmap_config_rgba[] = {
LOCAL_EGL_TEXTURE_TARGET, LOCAL_EGL_TEXTURE_2D,
LOCAL_EGL_TEXTURE_FORMAT, LOCAL_EGL_TEXTURE_RGBA,
LOCAL_EGL_NONE
};
EGLSurface surface = nsnull;
if (aConfig && *aConfig) {
if (opaque)
surface = sEGLLibrary.fCreatePixmapSurface(EGL_DISPLAY(), *aConfig,
(EGLNativePixmapType)xsurface->XDrawable(),
pixmap_config_rgb);
else
surface = sEGLLibrary.fCreatePixmapSurface(EGL_DISPLAY(), *aConfig,
(EGLNativePixmapType)xsurface->XDrawable(),
pixmap_config_rgba);
if (surface != EGL_NO_SURFACE)
return surface;
}
EGLConfig configs[32];
int numConfigs = 32;
static EGLint pixmap_config[] = {
LOCAL_EGL_SURFACE_TYPE, LOCAL_EGL_PIXMAP_BIT,
LOCAL_EGL_RENDERABLE_TYPE, LOCAL_EGL_OPENGL_ES2_BIT,
LOCAL_EGL_DEPTH_SIZE, aDepth,
LOCAL_EGL_BIND_TO_TEXTURE_RGB, LOCAL_EGL_TRUE,
LOCAL_EGL_NONE
};
static EGLint pixmap_lock_config[] = {
LOCAL_EGL_SURFACE_TYPE, LOCAL_EGL_PIXMAP_BIT | LOCAL_EGL_LOCK_SURFACE_BIT_KHR,
LOCAL_EGL_RENDERABLE_TYPE, LOCAL_EGL_OPENGL_ES2_BIT,
LOCAL_EGL_DEPTH_SIZE, aDepth,
LOCAL_EGL_BIND_TO_TEXTURE_RGB, LOCAL_EGL_TRUE,
LOCAL_EGL_NONE
};
if (!sEGLLibrary.fChooseConfig(EGL_DISPLAY(),
sEGLLibrary.HasKHRLockSurface() ?
pixmap_lock_config : pixmap_config,
configs, numConfigs, &numConfigs))
return nsnull;
if (numConfigs == 0)
return nsnull;
int i = 0;
for (i = 0; i < numConfigs; ++i) {
if (opaque)
surface = sEGLLibrary.fCreatePixmapSurface(EGL_DISPLAY(), configs[i],
(EGLNativePixmapType)xsurface->XDrawable(),
pixmap_config_rgb);
else
surface = sEGLLibrary.fCreatePixmapSurface(EGL_DISPLAY(), configs[i],
(EGLNativePixmapType)xsurface->XDrawable(),
pixmap_config_rgba);
if (surface != EGL_NO_SURFACE)
break;
}
if (!surface) {
return nsnull;
}
if (aConfig)
*aConfig = configs[i];
return surface;
}
#endif
already_AddRefed<GLContextEGL>
GLContextEGL::CreateEGLPixmapOffscreenContext(const gfxIntSize& aSize,
const ContextFormat& aFormat,
bool aShare)
{
gfxASurface *thebesSurface = nsnull;
EGLNativePixmapType pixmap = 0;
#ifdef MOZ_X11
nsRefPtr<gfxXlibSurface> xsurface =
gfxXlibSurface::Create(DefaultScreenOfDisplay(DefaultXDisplay()),
gfxXlibSurface::FindRenderFormat(DefaultXDisplay(),
gfxASurface::ImageFormatRGB24),
gUseBackingSurface ? aSize : gfxIntSize(16, 16));
// XSync required after gfxXlibSurface::Create, otherwise EGL will fail with BadDrawable error
XSync(DefaultXDisplay(), False);
if (xsurface->CairoStatus() != 0)
return nsnull;
thebesSurface = xsurface;
pixmap = (EGLNativePixmapType)xsurface->XDrawable();
#endif
if (!pixmap) {
return nsnull;
}
EGLSurface surface = 0;
EGLConfig config = 0;
#ifdef MOZ_X11
int depth = gfxUtils::ImageFormatToDepth(gfxPlatform::GetPlatform()->GetOffscreenFormat());
surface = CreateEGLSurfaceForXSurface(thebesSurface, &config, gUseBackingSurface ? depth : 0);
#endif
if (!config) {
return nsnull;
}
GLContextEGL *shareContext = aShare ? GetGlobalContextEGL() : nsnull;
nsRefPtr<GLContextEGL> glContext =
GLContextEGL::CreateGLContext(aFormat,
surface,
config,
shareContext,
true);
glContext->HoldSurface(thebesSurface);
glContext->mCanBindToTexture = true;
return glContext.forget();
}
// Under EGL, if we're under X11, then we have to create a Pixmap
// because Maemo's EGL implementation doesn't support pbuffers at all
// for some reason. On Android, pbuffers are supported fine, though
// often without the ability to texture from them directly.
already_AddRefed<GLContext>
GLContextProviderEGL::CreateOffscreen(const gfxIntSize& aSize,
const ContextFormat& aFormat,
const ContextFlags aFlags)
{
if (!sEGLLibrary.EnsureInitialized()) {
return nsnull;
}
#if !defined(MOZ_X11)
bool usePBuffers = false; // Generally, prefer FBOs to PBuffers
if (sEGLLibrary.IsANGLE())
usePBuffers = true; // For d3d share handle, we need an EGL surface
gfxIntSize pbufferSize = usePBuffers ? aSize : gfxIntSize(16, 16);
nsRefPtr<GLContextEGL> glContext =
GLContextEGL::CreateEGLPBufferOffscreenContext(pbufferSize, aFormat, !usePBuffers);
if (!glContext)
return nsnull;
gfxIntSize fboSize = usePBuffers ? glContext->OffscreenActualSize() : aSize;
if (!(aFlags & GLContext::ContextFlagsGlobal) && !glContext->ResizeOffscreenFBO(fboSize, !usePBuffers))
return nsnull;
return glContext.forget();
#elif defined(MOZ_X11) && defined(MOZ_EGL_XRENDER_COMPOSITE)
nsRefPtr<GLContextEGL> glContext =
GLContextEGL::CreateBasicEGLPixmapOffscreenContext(aSize, aFormat);
if (!glContext)
return nsnull;
if (!(aFlags & GLContext::ContextFlagsGlobal) && !glContext->ResizeOffscreenFBO(glContext->OffscreenActualSize(), true))
return nsnull;
return glContext.forget();
#elif defined(MOZ_X11)
nsRefPtr<GLContextEGL> glContext =
GLContextEGL::CreateEGLPixmapOffscreenContext(aSize, aFormat, true);
if (!glContext) {
return nsnull;
}
if (!(aFlags & GLContext::ContextFlagsGlobal) && !gUseBackingSurface && !glContext->ResizeOffscreenFBO(glContext->OffscreenActualSize(), true)) {
// we weren't able to create the initial
// offscreen FBO, so this is dead
return nsnull;
}
return glContext.forget();
#else
return nsnull;
#endif
}
already_AddRefed<GLContext>
GLContextProviderEGL::CreateForNativePixmapSurface(gfxASurface* aSurface)
{
if (!sEGLLibrary.EnsureInitialized())
return nsnull;
#ifdef MOZ_X11
EGLSurface surface = nsnull;
EGLConfig config = nsnull;
if (aSurface->GetType() != gfxASurface::SurfaceTypeXlib) {
// Not implemented
return nsnull;
}
surface = CreateEGLSurfaceForXSurface(aSurface, &config);
if (!config) {
return nsnull;
}
GLContextEGL *shareContext = GetGlobalContextEGL();
gfxXlibSurface* xsurface = static_cast<gfxXlibSurface*>(aSurface);
nsRefPtr<GLContextEGL> glContext =
GLContextEGL::CreateGLContext(DepthToGLFormat(xsurface->XRenderFormat()->depth),
surface, config, shareContext, false);
glContext->HoldSurface(aSurface);
return glContext.forget().get();
#else
// Not implemented
return nsnull;
#endif
}
GLContext *
GLContextProviderEGL::GetGlobalContext()
{
static bool triedToCreateContext = false;
if (!triedToCreateContext && !gGlobalContext) {
triedToCreateContext = true;
// Don't assign directly to gGlobalContext here, because
// CreateOffscreen can call us re-entrantly.
nsRefPtr<GLContext> ctx =
GLContextProviderEGL::CreateOffscreen(gfxIntSize(16, 16),
ContextFormat(ContextFormat::BasicRGB24),
GLContext::ContextFlagsGlobal);
gGlobalContext = ctx;
if (gGlobalContext)
gGlobalContext->SetIsGlobalSharedContext(true);
}
return gGlobalContext;
}
void
GLContextProviderEGL::Shutdown()
{
gGlobalContext = nsnull;
}
//------------------------------------------------------------------------------
// The following methods exist to support an accelerated WebGL XRender composite
// path for BasicLayers. This is a potentially temporary change that can be
// removed when performance of GL layers is superior on mobile linux platforms.
//------------------------------------------------------------------------------
#if defined(MOZ_X11) && defined(MOZ_EGL_XRENDER_COMPOSITE)
EGLSurface
CreateBasicEGLSurfaceForXSurface(gfxASurface* aSurface, EGLConfig* aConfig)
{
gfxXlibSurface* xsurface = static_cast<gfxXlibSurface*>(aSurface);
bool opaque =
aSurface->GetContentType() == gfxASurface::CONTENT_COLOR;
EGLSurface surface = nsnull;
if (aConfig && *aConfig) {
surface = sEGLLibrary.fCreatePixmapSurface(EGL_DISPLAY(), *aConfig,
xsurface->XDrawable(),
0);
if (surface != EGL_NO_SURFACE)
return surface;
}
EGLConfig configs[32];
int numConfigs = 32;
static EGLint pixmap_config[] = {
LOCAL_EGL_SURFACE_TYPE, LOCAL_EGL_PIXMAP_BIT,
LOCAL_EGL_RENDERABLE_TYPE, LOCAL_EGL_OPENGL_ES2_BIT,
0x30E2, 0x30E3,
LOCAL_EGL_DEPTH_SIZE, 16,
LOCAL_EGL_NONE
};
if (!sEGLLibrary.fChooseConfig(EGL_DISPLAY(),
pixmap_config,
configs, numConfigs, &numConfigs))
return nsnull;
if (numConfigs == 0)
return nsnull;
int i = 0;
for (i = 0; i < numConfigs; ++i) {
surface = sEGLLibrary.fCreatePixmapSurface(EGL_DISPLAY(), configs[i],
xsurface->XDrawable(),
0);
if (surface != EGL_NO_SURFACE)
break;
}
if (!surface) {
return nsnull;
}
if (aConfig)
{
*aConfig = configs[i];
}
return surface;
}
already_AddRefed<GLContextEGL>
GLContextEGL::CreateBasicEGLPixmapOffscreenContext(const gfxIntSize& aSize,
const ContextFormat& aFormat)
{
gfxASurface *thebesSurface = nsnull;
EGLNativePixmapType pixmap = 0;
XRenderPictFormat* format = gfxXlibSurface::FindRenderFormat(DefaultXDisplay(), gfxASurface::ImageFormatARGB32);
nsRefPtr<gfxXlibSurface> xsurface =
gfxXlibSurface::Create(DefaultScreenOfDisplay(DefaultXDisplay()), format, aSize);
// XSync required after gfxXlibSurface::Create, otherwise EGL will fail with BadDrawable error
XSync(DefaultXDisplay(), False);
if (xsurface->CairoStatus() != 0)
{
return nsnull;
}
thebesSurface = xsurface;
pixmap = xsurface->XDrawable();
if (!pixmap) {
return nsnull;
}
EGLSurface surface = 0;
EGLConfig config = 0;
surface = CreateBasicEGLSurfaceForXSurface(xsurface, &config);
if (!config) {
return nsnull;
}
EGLContext context = sEGLLibrary.fCreateContext(EGL_DISPLAY(),
config,
EGL_NO_CONTEXT,
sEGLLibrary.HasRobustness() ? gContextAttribsRobustness
: gContextAttribs);
if (!context) {
sEGLLibrary.fDestroySurface(EGL_DISPLAY(), surface);
return nsnull;
}
nsRefPtr<GLContextEGL> glContext = new GLContextEGL(aFormat, nsnull,
config, surface, context,
true);
if (!glContext->Init())
{
return nsnull;
}
glContext->HoldSurface(thebesSurface);
return glContext.forget();
}
bool GLContextEGL::ResizeOffscreenPixmapSurface(const gfxIntSize& aNewSize)
{
gfxASurface *thebesSurface = nsnull;
EGLNativePixmapType pixmap = 0;
XRenderPictFormat* format = gfxXlibSurface::FindRenderFormat(DefaultXDisplay(), gfxASurface::ImageFormatARGB32);
nsRefPtr<gfxXlibSurface> xsurface =
gfxXlibSurface::Create(DefaultScreenOfDisplay(DefaultXDisplay()),
format,
aNewSize);
// XSync required after gfxXlibSurface::Create, otherwise EGL will fail with BadDrawable error
XSync(DefaultXDisplay(), False);
if (xsurface->CairoStatus() != 0)
return nsnull;
thebesSurface = xsurface;
pixmap = xsurface->XDrawable();
if (!pixmap) {
return nsnull;
}
EGLSurface surface = 0;
EGLConfig config = 0;
surface = CreateBasicEGLSurfaceForXSurface(xsurface, &config);
if (!surface) {
NS_WARNING("Failed to resize pbuffer");
return nsnull;
}
sEGLLibrary.fDestroySurface(EGL_DISPLAY(), mSurface);
mSurface = surface;
HoldSurface(thebesSurface);
SetOffscreenSize(aNewSize, aNewSize);
MakeCurrent(true);
return true;
}
#endif
} /* namespace gl */
} /* namespace mozilla */
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