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gecko/gfx/thebes/GLContextProviderEGL.cpp
Chris Lord 7f1c4e37b9 Bug 675908 - Fix TiledTextureImage updates. r=joe,romaxa 
TiledTextureImage breaks BeginUpdate/EndUpdate in these cases:

- The update is encompassed by more than one tile
- The update is encompassed by a single tile that isn't the first tile
- The update is a non-rectangular region that covers more than one tile

Fixed by using signed instead of unsigned integers in tile loops, correcting
an incorrect device offset and correcting the region returned by BeginUpdate.
2011-08-19 09:36:04 +01:00

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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 ***** */
#if defined(MOZ_X11)
#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 <QWidget>
#include <QtOpenGL/QGLWidget>
#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))->handle()
#endif
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include "mozilla/X11Util.h"
#include "gfxXlibSurface.h"
typedef Display *EGLNativeDisplayType;
typedef Pixmap EGLNativePixmapType;
typedef Window EGLNativeWindowType;
#define EGL_LIB "/usr/lib/libEGL.so"
#define GLES2_LIB "/usr/lib/libGLESv2.so"
#elif defined(ANDROID)
/* from widget */
#include "AndroidBridge.h"
typedef void *EGLNativeDisplayType;
typedef void *EGLNativePixmapType;
typedef void *EGLNativeWindowType;
#define EGL_LIB "/system/lib/libEGL.so"
#define GLES2_LIB "/system/lib/libGLESv2.so"
#elif defined(XP_WIN)
#include "mozilla/Preferences.h"
#include "nsILocalFile.h"
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN 1
#endif
#include <windows.h>
typedef HDC EGLNativeDisplayType;
typedef HBITMAP EGLNativePixmapType;
typedef HWND EGLNativeWindowType;
#define GET_NATIVE_WINDOW(aWidget) ((EGLNativeWindowType)aWidget->GetNativeData(NS_NATIVE_WINDOW))
#define EGL_LIB "libEGL.dll"
#define GLES2_LIB "libGLESv2.dll"
// 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 "gfxUtils.h"
#include "gfxASurface.h"
#include "gfxImageSurface.h"
#include "gfxPlatform.h"
#include "GLContextProvider.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
namespace mozilla {
namespace gl {
typedef int EGLint;
typedef unsigned int EGLBoolean;
typedef unsigned int EGLenum;
typedef void *EGLConfig;
typedef void *EGLContext;
typedef void *EGLDisplay;
typedef void *EGLSurface;
typedef void *EGLClientBuffer;
typedef void *EGLCastToRelevantPtr;
typedef void *EGLImageKHR;
typedef void *GLeglImageOES;
#define EGL_DEFAULT_DISPLAY ((EGLNativeDisplayType)0)
#define EGL_NO_CONTEXT ((EGLContext)0)
#define EGL_NO_DISPLAY ((EGLDisplay)0)
#define EGL_NO_SURFACE ((EGLSurface)0)
#define EGL_DISPLAY() sEGLLibrary.Display()
#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)
EGLSurface
CreateSurfaceForWindow(nsIWidget *aWidget, EGLConfig config);
EGLConfig
CreateConfig();
#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 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;
}
static class EGLLibrary
{
public:
EGLLibrary()
: mInitialized(PR_FALSE),
mEGLLibrary(nsnull)
{
mIsANGLE = PR_FALSE;
mHave_EGL_KHR_image_base = PR_FALSE;
mHave_EGL_KHR_image_pixmap = PR_FALSE;
mHave_EGL_KHR_gl_texture_2D_image = PR_FALSE;
mHave_EGL_KHR_lock_surface = PR_FALSE;
mHave_EGL_ANGLE_surface_d3d_texture_2d_share_handle = PR_FALSE;
}
typedef EGLDisplay (GLAPIENTRY * pfnGetDisplay)(void *display_id);
pfnGetDisplay fGetDisplay;
typedef EGLContext (GLAPIENTRY * pfnGetCurrentContext)(void);
pfnGetCurrentContext fGetCurrentContext;
typedef EGLBoolean (GLAPIENTRY * pfnMakeCurrent)(EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx);
pfnMakeCurrent fMakeCurrent;
typedef EGLBoolean (GLAPIENTRY * pfnDestroyContext)(EGLDisplay dpy, EGLContext ctx);
pfnDestroyContext fDestroyContext;
typedef EGLContext (GLAPIENTRY * pfnCreateContext)(EGLDisplay dpy, EGLConfig config, EGLContext share_context, const EGLint *attrib_list);
pfnCreateContext fCreateContext;
typedef EGLBoolean (GLAPIENTRY * pfnDestroySurface)(EGLDisplay dpy, EGLSurface surface);
pfnDestroySurface fDestroySurface;
typedef EGLSurface (GLAPIENTRY * pfnCreateWindowSurface)(EGLDisplay dpy, EGLConfig config, EGLNativeWindowType win, const EGLint *attrib_list);
pfnCreateWindowSurface fCreateWindowSurface;
typedef EGLSurface (GLAPIENTRY * pfnCreatePbufferSurface)(EGLDisplay dpy, EGLConfig config, const EGLint *attrib_list);
pfnCreatePbufferSurface fCreatePbufferSurface;
typedef EGLSurface (GLAPIENTRY * pfnCreatePixmapSurface)(EGLDisplay dpy, EGLConfig config, EGLNativePixmapType pixmap, const EGLint *attrib_list);
pfnCreatePixmapSurface fCreatePixmapSurface;
typedef EGLBoolean (GLAPIENTRY * pfnBindAPI)(EGLenum api);
pfnBindAPI fBindAPI;
typedef EGLBoolean (GLAPIENTRY * pfnInitialize)(EGLDisplay dpy, EGLint *major, EGLint *minor);
pfnInitialize fInitialize;
typedef EGLBoolean (GLAPIENTRY * pfnChooseConfig)(EGLDisplay dpy, const EGLint *attrib_list, EGLConfig *configs, EGLint config_size, EGLint *num_config);
pfnChooseConfig fChooseConfig;
typedef EGLint (GLAPIENTRY * pfnGetError)(void);
pfnGetError fGetError;
typedef EGLBoolean (GLAPIENTRY * pfnGetConfigAttrib)(EGLDisplay dpy, EGLConfig config, EGLint attribute, EGLint *value);
pfnGetConfigAttrib fGetConfigAttrib;
typedef EGLBoolean (GLAPIENTRY * pfnGetConfigs)(EGLDisplay dpy, EGLConfig *configs, EGLint config_size, EGLint *num_config);
pfnGetConfigs fGetConfigs;
typedef EGLBoolean (GLAPIENTRY * pfnWaitNative)(EGLint engine);
pfnWaitNative fWaitNative;
typedef EGLCastToRelevantPtr (GLAPIENTRY * pfnGetProcAddress)(const char *procname);
pfnGetProcAddress fGetProcAddress;
typedef EGLBoolean (GLAPIENTRY * pfnSwapBuffers)(EGLDisplay dpy, EGLSurface surface);
pfnSwapBuffers fSwapBuffers;
typedef EGLBoolean (GLAPIENTRY * pfnCopyBuffers)(EGLDisplay dpy, EGLSurface surface,
EGLNativePixmapType target);
pfnCopyBuffers fCopyBuffers;
typedef const GLubyte* (GLAPIENTRY * pfnQueryString)(EGLDisplay, EGLint name);
pfnQueryString fQueryString;
typedef EGLBoolean (GLAPIENTRY * pfnQueryContext)(EGLDisplay dpy, EGLContext ctx,
EGLint attribute, EGLint *value);
pfnQueryContext fQueryContext;
typedef EGLBoolean (GLAPIENTRY * pfnBindTexImage)(EGLDisplay, EGLSurface surface, EGLint buffer);
pfnBindTexImage fBindTexImage;
typedef EGLBoolean (GLAPIENTRY * pfnReleaseTexImage)(EGLDisplay, EGLSurface surface, EGLint buffer);
pfnReleaseTexImage fReleaseTexImage;
typedef EGLImageKHR (GLAPIENTRY * pfnCreateImageKHR)(EGLDisplay dpy, EGLContext ctx, EGLenum target, EGLClientBuffer buffer, const EGLint *attrib_list);
pfnCreateImageKHR fCreateImageKHR;
typedef EGLBoolean (GLAPIENTRY * pfnDestroyImageKHR)(EGLDisplay dpy, EGLImageKHR image);
pfnDestroyImageKHR fDestroyImageKHR;
// New extension which allow us to lock texture and get raw image pointer
typedef EGLBoolean (GLAPIENTRY * pfnLockSurfaceKHR)(EGLDisplay dpy, EGLSurface surface, const EGLint *attrib_list);
pfnLockSurfaceKHR fLockSurfaceKHR;
typedef EGLBoolean (GLAPIENTRY * pfnUnlockSurfaceKHR)(EGLDisplay dpy, EGLSurface surface);
pfnUnlockSurfaceKHR fUnlockSurfaceKHR;
typedef EGLBoolean (GLAPIENTRY * pfnQuerySurface)(EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint *value);
pfnQuerySurface fQuerySurface;
typedef EGLBoolean (GLAPIENTRY * pfnQuerySurfacePointerANGLE)(EGLDisplay dpy, EGLSurface surface, EGLint attribute, void **value);
pfnQuerySurfacePointerANGLE fQuerySurfacePointerANGLE;
// This is EGL specific GL ext symbol "glEGLImageTargetTexture2DOES"
// Lets keep it here for now.
typedef void (GLAPIENTRY * pfnImageTargetTexture2DOES)(GLenum target, GLeglImageOES image);
pfnImageTargetTexture2DOES fImageTargetTexture2DOES;
PRBool EnsureInitialized()
{
if (mInitialized) {
return PR_TRUE;
}
mozilla::ScopedGfxFeatureReporter reporter("EGL");
#ifdef XP_WIN
// Allow for explicitly specifying the location of libEGL.dll and
// libGLESv2.dll.
do {
nsCOMPtr<nsILocalFile> eglFile, glesv2File;
nsresult rv = Preferences::GetComplex("gfx.angle.egl.path",
NS_GET_IID(nsILocalFile),
getter_AddRefs(eglFile));
if (NS_FAILED(rv) || !eglFile)
break;
nsCAutoString s;
// note that we have to load the libs in this order, because libEGL.dll
// depends on libGLESv2.dll, but is not/may not be in our search path.
nsCOMPtr<nsIFile> f;
eglFile->Clone(getter_AddRefs(f));
glesv2File = do_QueryInterface(f);
if (!glesv2File)
break;
glesv2File->Append(NS_LITERAL_STRING("libGLESv2.dll"));
PRLibrary *glesv2lib = nsnull; // this will be leaked on purpose
glesv2File->Load(&glesv2lib);
if (!glesv2lib)
break;
eglFile->Append(NS_LITERAL_STRING("libEGL.dll"));
eglFile->Load(&mEGLLibrary);
} while (false);
#endif
if (!mEGLLibrary) {
mEGLLibrary = PR_LoadLibrary(EGL_LIB);
}
if (!mEGLLibrary) {
NS_WARNING("Couldn't load EGL LIB.");
return PR_FALSE;
}
#define SYMBOL(name) \
{ (PRFuncPtr*) &f##name, { "egl" #name, NULL } }
LibrarySymbolLoader::SymLoadStruct earlySymbols[] = {
SYMBOL(GetDisplay),
SYMBOL(GetCurrentContext),
SYMBOL(MakeCurrent),
SYMBOL(DestroyContext),
SYMBOL(CreateContext),
SYMBOL(DestroySurface),
SYMBOL(CreateWindowSurface),
SYMBOL(CreatePbufferSurface),
SYMBOL(CreatePixmapSurface),
SYMBOL(BindAPI),
SYMBOL(Initialize),
SYMBOL(ChooseConfig),
SYMBOL(GetError),
SYMBOL(GetConfigs),
SYMBOL(GetConfigAttrib),
SYMBOL(WaitNative),
SYMBOL(GetProcAddress),
SYMBOL(SwapBuffers),
SYMBOL(CopyBuffers),
SYMBOL(QueryString),
SYMBOL(QueryContext),
SYMBOL(BindTexImage),
SYMBOL(ReleaseTexImage),
SYMBOL(QuerySurface),
{ NULL, { NULL } }
};
if (!LibrarySymbolLoader::LoadSymbols(mEGLLibrary, &earlySymbols[0])) {
NS_WARNING("Couldn't find required entry points in EGL library (early init)");
return PR_FALSE;
}
#if defined(MOZ_X11) && defined(MOZ_EGL_XRENDER_COMPOSITE)
mEGLDisplay = fGetDisplay((EGLNativeDisplayType) gdk_x11_get_default_xdisplay());
#else
mEGLDisplay = fGetDisplay(EGL_DEFAULT_DISPLAY);
#endif
if (!fInitialize(mEGLDisplay, NULL, NULL))
return PR_FALSE;
const char *vendor = (const char*) fQueryString(mEGLDisplay, LOCAL_EGL_VENDOR);
if (vendor && strstr(vendor, "TransGaming") != 0) {
mIsANGLE = PR_TRUE;
}
const char *extensions = (const char*) fQueryString(mEGLDisplay, LOCAL_EGL_EXTENSIONS);
if (!extensions)
extensions = "";
printf_stderr("Extensions: %s 0x%02x\n", extensions, extensions[0]);
printf_stderr("Extensions length: %d\n", strlen(extensions));
// note the extra space -- this ugliness tries to match
// EGL_KHR_image in the middle of the string, or right at the
// end. It's a prefix for other extensions, so we have to do
// this...
PRBool hasKHRImage = PR_FALSE;
if (strstr(extensions, "EGL_KHR_image ") ||
(strlen(extensions) >= strlen("EGL_KHR_image") &&
strcmp(extensions+(strlen(extensions)-strlen("EGL_KHR_image")), "EGL_KHR_image")))
{
hasKHRImage = PR_TRUE;
}
if (strstr(extensions, "EGL_KHR_image_base")) {
mHave_EGL_KHR_image_base = PR_TRUE;
}
if (strstr(extensions, "EGL_KHR_image_pixmap")) {
mHave_EGL_KHR_image_pixmap = PR_TRUE;
}
if (strstr(extensions, "EGL_KHR_gl_texture_2D_image")) {
mHave_EGL_KHR_gl_texture_2D_image = PR_TRUE;
}
if (strstr(extensions, "EGL_KHR_lock_surface")) {
mHave_EGL_KHR_lock_surface = PR_TRUE;
}
if (hasKHRImage) {
LibrarySymbolLoader::SymLoadStruct khrSymbols[] = {
{ (PRFuncPtr*) &fCreateImageKHR, { "eglCreateImageKHR", NULL } },
{ (PRFuncPtr*) &fDestroyImageKHR, { "eglDestroyImageKHR", NULL } },
{ (PRFuncPtr*) &fImageTargetTexture2DOES, { "glEGLImageTargetTexture2DOES", NULL } },
{ NULL, { NULL } }
};
LibrarySymbolLoader::LoadSymbols(mEGLLibrary, &khrSymbols[0],
(LibrarySymbolLoader::PlatformLookupFunction)fGetProcAddress);
}
if (mHave_EGL_KHR_lock_surface) {
LibrarySymbolLoader::SymLoadStruct lockSymbols[] = {
{ (PRFuncPtr*) &fLockSurfaceKHR, { "eglLockSurfaceKHR", NULL } },
{ (PRFuncPtr*) &fUnlockSurfaceKHR, { "eglUnlockSurfaceKHR", NULL } },
{ NULL, { NULL } }
};
LibrarySymbolLoader::LoadSymbols(mEGLLibrary, &lockSymbols[0],
(LibrarySymbolLoader::PlatformLookupFunction)fGetProcAddress);
if (!fLockSurfaceKHR) {
mHave_EGL_KHR_lock_surface = PR_FALSE;
}
}
if (!fCreateImageKHR) {
mHave_EGL_KHR_image_base = PR_FALSE;
mHave_EGL_KHR_image_pixmap = PR_FALSE;
mHave_EGL_KHR_gl_texture_2D_image = PR_FALSE;
}
if (!fImageTargetTexture2DOES) {
mHave_EGL_KHR_gl_texture_2D_image = PR_FALSE;
}
if (strstr(extensions, "EGL_ANGLE_surface_d3d_texture_2d_share_handle")) {
LibrarySymbolLoader::SymLoadStruct d3dSymbols[] = {
{ (PRFuncPtr*) &fQuerySurfacePointerANGLE, { "eglQuerySurfacePointerANGLE", NULL } },
{ NULL, { NULL } }
};
LibrarySymbolLoader::LoadSymbols(mEGLLibrary, &d3dSymbols[0],
(LibrarySymbolLoader::PlatformLookupFunction)fGetProcAddress);
if (fQuerySurfacePointerANGLE) {
mHave_EGL_ANGLE_surface_d3d_texture_2d_share_handle = PR_TRUE;
}
}
mInitialized = PR_TRUE;
reporter.SetSuccessful();
return PR_TRUE;
}
EGLDisplay Display() {
return mEGLDisplay;
}
PRBool IsANGLE() {
return mIsANGLE;
}
PRBool HasKHRImageBase() {
return mHave_EGL_KHR_image_base;
}
PRBool HasKHRImagePixmap() {
return mHave_EGL_KHR_image_pixmap;
}
PRBool HasKHRImageTexture2D() {
return mHave_EGL_KHR_gl_texture_2D_image;
}
PRBool HasKHRLockSurface() {
return mHave_EGL_KHR_lock_surface;
}
PRBool HasANGLESurfaceD3DTexture2DShareHandle() {
return mHave_EGL_ANGLE_surface_d3d_texture_2d_share_handle;
}
void
DumpEGLConfig(EGLConfig cfg)
{
int attrval;
int err;
#define ATTR(_x) do { \
fGetConfigAttrib(mEGLDisplay, cfg, LOCAL_EGL_##_x, &attrval); \
if ((err = fGetError()) != 0x3000) { \
printf_stderr(" %s: ERROR (0x%04x)\n", #_x, err); \
} else { \
printf_stderr(" %s: %d (0x%04x)\n", #_x, attrval, attrval); \
} \
} while(0)
printf_stderr("EGL Config: %d [%p]\n", (int)(intptr_t)cfg, cfg);
ATTR(BUFFER_SIZE);
ATTR(ALPHA_SIZE);
ATTR(BLUE_SIZE);
ATTR(GREEN_SIZE);
ATTR(RED_SIZE);
ATTR(DEPTH_SIZE);
ATTR(STENCIL_SIZE);
ATTR(CONFIG_CAVEAT);
ATTR(CONFIG_ID);
ATTR(LEVEL);
ATTR(MAX_PBUFFER_HEIGHT);
ATTR(MAX_PBUFFER_PIXELS);
ATTR(MAX_PBUFFER_WIDTH);
ATTR(NATIVE_RENDERABLE);
ATTR(NATIVE_VISUAL_ID);
ATTR(NATIVE_VISUAL_TYPE);
ATTR(PRESERVED_RESOURCES);
ATTR(SAMPLES);
ATTR(SAMPLE_BUFFERS);
ATTR(SURFACE_TYPE);
ATTR(TRANSPARENT_TYPE);
ATTR(TRANSPARENT_RED_VALUE);
ATTR(TRANSPARENT_GREEN_VALUE);
ATTR(TRANSPARENT_BLUE_VALUE);
ATTR(BIND_TO_TEXTURE_RGB);
ATTR(BIND_TO_TEXTURE_RGBA);
ATTR(MIN_SWAP_INTERVAL);
ATTR(MAX_SWAP_INTERVAL);
ATTR(LUMINANCE_SIZE);
ATTR(ALPHA_MASK_SIZE);
ATTR(COLOR_BUFFER_TYPE);
ATTR(RENDERABLE_TYPE);
ATTR(CONFORMANT);
#undef ATTR
}
void DumpEGLConfigs() {
int nc = 0;
fGetConfigs(mEGLDisplay, NULL, 0, &nc);
EGLConfig *ec = new EGLConfig[nc];
fGetConfigs(mEGLDisplay, ec, nc, &nc);
for (int i = 0; i < nc; ++i) {
printf_stderr ("========= EGL Config %d ========\n");
DumpEGLConfig(ec[i]);
}
delete [] ec;
}
private:
PRBool mInitialized;
PRLibrary *mEGLLibrary;
EGLDisplay mEGLDisplay;
PRPackedBool mIsANGLE;
PRPackedBool mHave_EGL_KHR_image_base;
PRPackedBool mHave_EGL_KHR_image_pixmap;
PRPackedBool mHave_EGL_KHR_gl_texture_2D_image;
PRPackedBool mHave_EGL_KHR_lock_surface;
PRPackedBool mHave_EGL_ANGLE_surface_d3d_texture_2d_share_handle;
} sEGLLibrary;
class GLContextEGL : public GLContext
{
friend class TextureImageEGL;
static already_AddRefed<GLContextEGL>
CreateGLContext(const ContextFormat& format,
EGLSurface surface,
EGLConfig config,
GLContextEGL *shareContext,
PRBool aIsOffscreen = PR_FALSE)
{
EGLContext context;
static EGLint cxattribs[] = {
LOCAL_EGL_CONTEXT_CLIENT_VERSION, 2,
LOCAL_EGL_NONE
};
context = sEGLLibrary.fCreateContext(EGL_DISPLAY(),
config,
shareContext ? shareContext->mContext : EGL_NO_CONTEXT,
cxattribs);
if (!context) {
if (shareContext) {
shareContext = nsnull;
context = sEGLLibrary.fCreateContext(EGL_DISPLAY(),
config,
EGL_NO_CONTEXT,
cxattribs);
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,
PRBool aIsOffscreen = PR_FALSE)
: GLContext(aFormat, aIsOffscreen, aShareContext)
, mConfig(aConfig)
, mSurface(aSurface), mContext(aContext)
, mGLWidget(nsnull)
, mThebesSurface(nsnull)
, mBound(PR_FALSE)
, mIsPBuffer(PR_FALSE)
, mIsDoubleBuffered(PR_FALSE)
, mPBufferCanBindToTexture(PR_FALSE)
{
// any EGL contexts will always be GLESv2
SetIsGLES2(PR_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 (mGLWidget)
return;
#ifdef DEBUG
printf_stderr("Destroying context %p surface %p on display %p\n", mContext, mSurface, EGL_DISPLAY());
#endif
sEGLLibrary.fDestroyContext(EGL_DISPLAY(), mContext);
sEGLLibrary.fDestroySurface(EGL_DISPLAY(), mSurface);
}
GLContextType GetContextType() {
return ContextTypeEGL;
}
PRBool Init()
{
if (!OpenLibrary(GLES2_LIB)) {
NS_WARNING("Couldn't load EGL LIB.");
return PR_FALSE;
}
MakeCurrent();
PRBool ok = InitWithPrefix("gl", PR_TRUE);
#if 0
if (ok) {
EGLint v;
sEGLLibrary.fQueryContext(EGL_DISPLAY(), mContext, LOCAL_EGL_RENDER_BUFFER, &v);
if (v == LOCAL_EGL_BACK_BUFFER)
mIsDoubleBuffered = PR_TRUE;
}
#endif
return ok;
}
PRBool IsDoubleBuffered() {
return mIsDoubleBuffered;
}
void SetIsDoubleBuffered(PRBool aIsDB) {
mIsDoubleBuffered = aIsDB;
}
#if defined(MOZ_X11) && defined(MOZ_EGL_XRENDER_COMPOSITE)
gfxASurface* GetOffscreenPixmapSurface()
{
return mThebesSurface;
}
virtual PRBool WaitNative() {
return sEGLLibrary.fWaitNative(LOCAL_EGL_CORE_NATIVE_ENGINE);
}
#endif
PRBool BindTexImage()
{
if (!mSurface)
return PR_FALSE;
if (mBound && !ReleaseTexImage())
return PR_FALSE;
EGLBoolean success = sEGLLibrary.fBindTexImage(EGL_DISPLAY(),
(EGLSurface)mSurface, LOCAL_EGL_BACK_BUFFER);
if (success == LOCAL_EGL_FALSE)
return PR_FALSE;
mBound = PR_TRUE;
return PR_TRUE;
}
PRBool ReleaseTexImage()
{
if (!mBound)
return PR_TRUE;
if (!mSurface)
return PR_FALSE;
EGLBoolean success;
success = sEGLLibrary.fReleaseTexImage(EGL_DISPLAY(),
(EGLSurface)mSurface,
LOCAL_EGL_BACK_BUFFER);
if (success == LOCAL_EGL_FALSE)
return PR_FALSE;
mBound = PR_FALSE;
return PR_TRUE;
}
PRBool MakeCurrentImpl(PRBool aForce = PR_FALSE) {
PRBool succeeded = PR_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) {
if (mGLWidget) {
#ifdef MOZ_WIDGET_QT
static_cast<QGLWidget*>(mGLWidget)->makeCurrent();
#else
succeeded = PR_FALSE;
#endif
} else {
succeeded = sEGLLibrary.fMakeCurrent(EGL_DISPLAY(),
mSurface, mSurface,
mContext);
}
NS_ASSERTION(succeeded, "Failed to make GL context current!");
}
return succeeded;
}
#ifdef MOZ_WIDGET_QT
virtual PRBool
RenewSurface() {
/* We don't support renewing on QT because we don't create the surface ourselves */
return PR_FALSE;
}
#else
virtual PRBool
RenewSurface() {
sEGLLibrary.fDestroySurface(EGL_DISPLAY(), mSurface);
EGLConfig config = CreateConfig();
mSurface = CreateSurfaceForWindow(NULL, config);
return sEGLLibrary.fMakeCurrent(EGL_DISPLAY(),
mSurface, mSurface,
mContext);
}
#endif
PRBool SetupLookupFunction()
{
mLookupFunc = (PlatformLookupFunction)sEGLLibrary.fGetProcAddress;
return PR_TRUE;
}
void *GetNativeData(NativeDataType aType)
{
switch (aType) {
case NativeGLContext:
return mContext;
default:
return nsnull;
}
}
PRBool SwapBuffers()
{
return sEGLLibrary.fSwapBuffers(EGL_DISPLAY(), mSurface);
}
// GLContext interface - returns Tiled Texture Image in our case
virtual already_AddRefed<TextureImage>
CreateTextureImage(const nsIntSize& aSize,
TextureImage::ContentType aContentType,
GLenum aWrapMode,
PRBool aUseNearestFilter=PR_FALSE);
// a function to generate Tiles for Tiled Texture Image
virtual already_AddRefed<TextureImage>
TileGenFunc(const nsIntSize& aSize,
TextureImage::ContentType aContentType,
PRBool aUseNearestFilter = PR_FALSE);
// hold a reference to the given surface
// for the lifetime of this context.
void HoldSurface(gfxASurface *aSurf) {
mThebesSurface = aSurf;
}
void SetQtGLWidget(void *widget) {
mGLWidget = widget;
}
EGLContext Context() {
return mContext;
}
PRBool BindTex2DOffscreen(GLContext *aOffscreen);
void UnbindTex2DOffscreen(GLContext *aOffscreen);
PRBool ResizeOffscreen(const gfxIntSize& aNewSize);
void BindOffscreenFramebuffer();
static already_AddRefed<GLContextEGL>
CreateEGLPixmapOffscreenContext(const gfxIntSize& aSize,
const ContextFormat& aFormat,
PRBool aShare);
#if defined(MOZ_X11) && defined(MOZ_EGL_XRENDER_COMPOSITE)
static already_AddRefed<GLContextEGL>
CreateBasicEGLPixmapOffscreenContext(const gfxIntSize& aSize,
const ContextFormat& aFormat);
PRBool ResizeOffscreenPixmapSurface(const gfxIntSize& aNewSize);
#endif
static already_AddRefed<GLContextEGL>
CreateEGLPBufferOffscreenContext(const gfxIntSize& aSize,
const ContextFormat& aFormat);
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 *mGLWidget;
nsRefPtr<gfxASurface> mThebesSurface;
PRBool mBound;
PRPackedBool mIsPBuffer;
PRPackedBool mIsDoubleBuffered;
PRPackedBool mPBufferCanBindToTexture;
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;
}
};
PRBool
GLContextEGL::BindTex2DOffscreen(GLContext *aOffscreen)
{
if (aOffscreen->GetContextType() != ContextTypeEGL) {
NS_WARNING("non-EGL context");
return PR_FALSE;
}
GLContextEGL *offs = static_cast<GLContextEGL*>(aOffscreen);
if (offs->mIsPBuffer && offs->mPBufferCanBindToTexture) {
PRBool 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 PR_FALSE;
}
fBindTexture(LOCAL_GL_TEXTURE_2D, offs->mOffscreenTexture);
return PR_TRUE;
}
NS_WARNING("don't know how to bind this!");
return PR_FALSE;
}
void
GLContextEGL::UnbindTex2DOffscreen(GLContext *aOffscreen)
{
NS_ASSERTION(aOffscreen->GetContextType() == ContextTypeEGL, "wrong type");
GLContextEGL *offs = static_cast<GLContextEGL*>(aOffscreen);
if (offs->mIsPBuffer && offs->mPBufferCanBindToTexture) {
sEGLLibrary.fReleaseTexImage(EGL_DISPLAY(),
offs->mSurface,
LOCAL_EGL_BACK_BUFFER);
}
}
PRBool
GLContextEGL::ResizeOffscreen(const gfxIntSize& aNewSize)
{
if (mIsPBuffer) {
gfxIntSize pbsize(aNewSize);
EGLSurface surface =
CreatePBufferSurfaceTryingPowerOfTwo(mConfig,
mPBufferCanBindToTexture
? (mCreationFormat.minAlpha
? LOCAL_EGL_TEXTURE_RGBA
: LOCAL_EGL_TEXTURE_RGB)
: LOCAL_EGL_NONE,
pbsize);
if (!surface) {
NS_WARNING("Failed to resize pbuffer");
return nsnull;
}
SetOffscreenSize(aNewSize, pbsize);
sEGLLibrary.fDestroySurface(EGL_DISPLAY(), mSurface);
mSurface = surface;
MakeCurrent(PR_TRUE);
ClearSafely();
return PR_TRUE;
}
#ifdef MOZ_X11
if (gUseBackingSurface && mThebesSurface) {
if (aNewSize == mThebesSurface->GetSize()) {
return PR_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 PR_FALSE;
}
pixmap = xsurface->XDrawable();
if (!pixmap) {
return PR_FALSE;
}
EGLSurface surface;
EGLConfig config = 0;
int depth = gfxUtils::ImageFormatToDepth(gfxPlatform::GetPlatform()->GetOffscreenFormat());
surface = CreateEGLSurfaceForXSurface(xsurface, &config, depth);
if (!config) {
return PR_FALSE;
}
mThebesSurface = xsurface;
return PR_TRUE;
}
#endif
#if defined(MOZ_X11) && defined(MOZ_EGL_XRENDER_COMPOSITE)
return ResizeOffscreenPixmapSurface(aNewSize);
#endif
return ResizeOffscreenFBO(aNewSize);
}
static GLContextEGL *
GetGlobalContextEGL()
{
return static_cast<GLContextEGL*>(GLContextProviderEGL::GetGlobalContext());
}
static GLenum
GLFormatForImage(gfxASurface::gfxImageFormat aFormat)
{
switch (aFormat) {
case gfxASurface::ImageFormatARGB32:
return LOCAL_GL_RGBA;
case gfxASurface::ImageFormatRGB24:
// this often isn't correct, because we can't guarantee that
// the alpha byte will be 0xff coming from the image surface
NS_WARNING("Using GL_RGBA for ImageFormatRGB24, are you sure you know what you're doing?");
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)
, mTexture(aTexture)
, mGLContext(aContext)
, mUpdateFormat(gfxASurface::ImageFormatUnknown)
, mSurface(nsnull)
, mConfig(nsnull)
, mImageKHR(nsnull)
, mTextureState(Created)
, mBound(PR_FALSE)
, mIsLocked(PR_FALSE)
{
mUpdateFormat = gfxASurface::FormatFromContent(GetContentType());
if (gUseBackingSurface) {
if (mUpdateFormat == gfxASurface::ImageFormatRGB24) {
#ifdef MOZ_GFX_OPTIMIZE_MOBILE
mUpdateFormat = gfxASurface::ImageFormatRGB16_565;
mShaderType = RGBXLayerProgramType;
#else
mUpdateFormat = gfxASurface::ImageFormatARGB32;
mShaderType = RGBALayerProgramType;
#endif
} else {
mShaderType = RGBALayerProgramType;
}
Resize(aSize);
} else {
// Convert RGB24 to either ARGB32 on mobile. We can't
// generate GL_RGB data, so we'll always have an alpha byte
// for RGB24. No easy way to upload that to GL.
//
// Note that if we start using RGB565 here, we'll need to
// watch for a) setting mIsRGBFormat to TRUE; and b) getting
// the stride right.
if (mUpdateFormat == gfxASurface::ImageFormatRGB24) {
mUpdateFormat = gfxASurface::ImageFormatARGB32;
}
// We currently always use BGRA type textures
mShaderType = BGRALayerProgramType;
}
}
virtual ~TextureImageEGL()
{
GLContext *ctx = mGLContext;
if (ctx->IsDestroyed() || !NS_IsMainThread()) {
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(mUpdateRect);
}
}
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;
}
// if we get this far, then we're using Cairo's byte order
mIsRGBFormat = PR_FALSE;
//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,
PR_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 PRBool 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;
}
PRBool BindTexImage()
{
if (mBound && !ReleaseTexImage())
return PR_FALSE;
EGLBoolean success =
sEGLLibrary.fBindTexImage(EGL_DISPLAY(),
(EGLSurface)mSurface,
LOCAL_EGL_BACK_BUFFER);
if (success == LOCAL_EGL_FALSE)
return PR_FALSE;
mBound = PR_TRUE;
return PR_TRUE;
}
PRBool ReleaseTexImage()
{
if (!mBound)
return PR_TRUE;
EGLBoolean success =
sEGLLibrary.fReleaseTexImage(EGL_DISPLAY(),
(EGLSurface)mSurface,
LOCAL_EGL_BACK_BUFFER);
if (success == LOCAL_EGL_FALSE)
return PR_FALSE;
mBound = PR_FALSE;
return PR_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 = PR_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 = PR_FALSE;
}
virtual already_AddRefed<gfxASurface> GetBackingSurface()
{
if (mBackingSurface) {
NS_ADDREF(mBackingSurface);
}
return mBackingSurface.get();
}
virtual PRBool CreateEGLSurface(gfxASurface* aSurface)
{
#ifdef MOZ_X11
if (!aSurface) {
NS_WARNING("no surface");
return PR_FALSE;
}
if (aSurface->GetType() != gfxASurface::SurfaceTypeXlib) {
NS_WARNING("wrong surface type, must be xlib");
return PR_FALSE;
}
if (mSurface) {
return PR_TRUE;
}
EGLSurface surface = CreateEGLSurfaceForXSurface(aSurface, &mConfig);
if (!surface) {
NS_WARNING("couldn't find X config for surface");
return PR_FALSE;
}
mSurface = surface;
return PR_TRUE;
#else
return PR_FALSE;
#endif
}
virtual void DestroyEGLSurface(void)
{
if (!mSurface)
return;
sEGLLibrary.fDestroySurface(EGL_DISPLAY(), mSurface);
mSurface = nsnull;
}
virtual PRBool 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 PR_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 PR_FALSE;
}
if (!BindTexImage()) {
printf_stderr("ProviderEGL Failed to bind teximage: ERROR (0x%04x)\n", sEGLLibrary.fGetError());
return PR_FALSE;
}
}
mBackingSurface = xsurface;
mIsRGBFormat = PR_TRUE;
#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;
PRPackedBool mBound;
PRPackedBool mIsLocked;
};
already_AddRefed<TextureImage>
GLContextEGL::CreateTextureImage(const nsIntSize& aSize,
TextureImage::ContentType aContentType,
GLenum aWrapMode,
PRBool aUseNearestFilter)
{
nsRefPtr<TextureImage> t = new gl::TiledTextureImage(this, aSize, aContentType);
return t.forget();
};
already_AddRefed<TextureImage>
GLContextEGL::TileGenFunc(const nsIntSize& aSize,
TextureImage::ContentType aContentType,
PRBool 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();
}
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;
}
#ifdef MOZ_WIDGET_QT
already_AddRefed<GLContext>
GLContextProviderEGL::CreateForWindow(nsIWidget *aWidget)
{
if (!sEGLLibrary.EnsureInitialized()) {
return nsnull;
}
QWidget *viewport = static_cast<QWidget*>(aWidget->GetNativeData(NS_NATIVE_SHELLWIDGET));
if (!viewport)
return nsnull;
if (viewport->paintEngine()->type() == QPaintEngine::OpenGL2) {
// Qt widget viewport already have GL context created by Qt
// Create dummy GLContextEGL class
nsRefPtr<GLContextEGL> glContext =
new GLContextEGL(ContextFormat(DepthToGLFormat(viewport->depth())),
NULL,
NULL, NULL,
sEGLLibrary.fGetCurrentContext(),
PR_FALSE);
if (!glContext->Init())
return nsnull;
glContext->SetIsDoubleBuffered(PR_TRUE);
glContext->SetQtGLWidget(viewport);
return glContext.forget();
}
// All Qt nsIWidget's have the same X-Window surface
// And EGL not allowing to create multiple GL context for the same window
// we should be able to create GL context for QGV viewport once, and reuse it for all child widgets
NS_ERROR("Need special GLContext implementation for QT widgets structure");
// Switch to software rendering here
return nsnull;
}
#else
EGLConfig
CreateConfig()
{
EGLConfig config;
EGLint attribs[] = {
LOCAL_EGL_SURFACE_TYPE, LOCAL_EGL_WINDOW_BIT,
LOCAL_EGL_RENDERABLE_TYPE, LOCAL_EGL_OPENGL_ES2_BIT,
#ifdef MOZ_GFX_OPTIMIZE_MOBILE
LOCAL_EGL_RED_SIZE, 5,
LOCAL_EGL_GREEN_SIZE, 6,
LOCAL_EGL_BLUE_SIZE, 5,
LOCAL_EGL_ALPHA_SIZE, 0,
#else
LOCAL_EGL_RED_SIZE, 8,
LOCAL_EGL_GREEN_SIZE, 8,
LOCAL_EGL_BLUE_SIZE, 8,
LOCAL_EGL_ALPHA_SIZE, 8,
#endif
LOCAL_EGL_NONE
};
EGLConfig configs[64];
EGLint ncfg = 64;
if (!sEGLLibrary.fChooseConfig(EGL_DISPLAY(), attribs, configs, ncfg, &ncfg) ||
ncfg < 1)
{
return nsnull;
}
config = 0;
for (int i = 0; i < ncfg; ++i) {
EGLint r, g, b, a;
sEGLLibrary.fGetConfigAttrib(EGL_DISPLAY(), configs[i], LOCAL_EGL_RED_SIZE, &r);
sEGLLibrary.fGetConfigAttrib(EGL_DISPLAY(), configs[i], LOCAL_EGL_GREEN_SIZE, &g);
sEGLLibrary.fGetConfigAttrib(EGL_DISPLAY(), configs[i], LOCAL_EGL_BLUE_SIZE, &b);
sEGLLibrary.fGetConfigAttrib(EGL_DISPLAY(), configs[i], LOCAL_EGL_ALPHA_SIZE, &a);
#ifdef MOZ_GFX_OPTIMIZE_MOBILE
if (r == 5 && g == 6 && b == 5) {
config = configs[i];
break;
}
#else
if (r == 8 && g == 8 && b == 8 && a == 8) {
config = configs[i];
break;
}
#endif
}
return config;
}
EGLSurface
CreateSurfaceForWindow(nsIWidget *aWidget, EGLConfig config)
{
EGLSurface surface;
#ifdef DEBUG
sEGLLibrary.DumpEGLConfig(config);
#endif
#ifdef 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.
printf_stderr("... requesting window surface from bridge\n");
surface = mozilla::AndroidBridge::Bridge()->
CallEglCreateWindowSurface(EGL_DISPLAY(), config,
mozilla::AndroidBridge::Bridge()->SurfaceView());
printf_stderr("got surface %p\n", surface);
#else
surface = sEGLLibrary.fCreateWindowSurface(EGL_DISPLAY(), config, GET_NATIVE_WINDOW(aWidget), 0);
#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;
}
config = CreateConfig();
if (!config) {
printf_stderr("Failed to create EGL config!\n");
return nsnull;
}
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,
PR_FALSE);
if (!glContext) {
return nsnull;
}
#if defined(XP_WIN) || defined(ANDROID) || defined(MOZ_PLATFORM_MAEMO)
glContext->SetIsDoubleBuffered(PR_TRUE);
#endif
return glContext.forget();
}
#endif
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)
{
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())
configCanBindToTexture = false;
nsTArray<EGLint> attribs(32);
int attribAttempt = 0;
TRY_ATTRIBS_AGAIN:
switch (attribAttempt) {
case 0:
FillPBufferAttribs(attribs, aFormat, configCanBindToTexture, 8, 24);
break;
case 1:
FillPBufferAttribs(attribs, aFormat, configCanBindToTexture, -1, 24);
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!
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)
return nsnull;
sEGLLibrary.fBindAPI(LOCAL_EGL_OPENGL_ES_API);
EGLint cxattrs[] = {
LOCAL_EGL_CONTEXT_CLIENT_VERSION, 2,
LOCAL_EGL_NONE
};
context = sEGLLibrary.fCreateContext(EGL_DISPLAY(),
config,
EGL_NO_CONTEXT,
cxattrs);
if (!context) {
NS_WARNING("Failed to create context");
sEGLLibrary.fDestroySurface(EGL_DISPLAY(), surface);
return nsnull;
}
nsRefPtr<GLContextEGL> glContext = new GLContextEGL(aFormat, nsnull,
config, surface, context,
PR_TRUE);
if (!glContext->Init()) {
return nsnull;
}
glContext->SetOffscreenSize(aSize, pbsize);
glContext->mIsPBuffer = PR_TRUE;
glContext->mPBufferCanBindToTexture = configCanBindToTexture;
return glContext.forget();
}
#ifdef MOZ_X11
EGLSurface
CreateEGLSurfaceForXSurface(gfxASurface* aSurface, EGLConfig* aConfig, EGLenum aDepth)
{
gfxXlibSurface* xsurface = static_cast<gfxXlibSurface*>(aSurface);
PRBool 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,
xsurface->XDrawable(),
pixmap_config_rgb);
else
surface = sEGLLibrary.fCreatePixmapSurface(EGL_DISPLAY(), *aConfig,
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],
xsurface->XDrawable(),
pixmap_config_rgb);
else
surface = sEGLLibrary.fCreatePixmapSurface(EGL_DISPLAY(), configs[i],
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,
PRBool 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 = 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,
PR_TRUE);
glContext->HoldSurface(thebesSurface);
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)
{
if (!sEGLLibrary.EnsureInitialized()) {
return nsnull;
}
#if defined(ANDROID) || defined(XP_WIN)
return GLContextEGL::CreateEGLPBufferOffscreenContext(aSize, aFormat);
#elif defined(MOZ_X11) && defined(MOZ_EGL_XRENDER_COMPOSITE)
return GLContextEGL::CreateBasicEGLPixmapOffscreenContext(aSize, aFormat);
#elif defined(MOZ_X11)
nsRefPtr<GLContextEGL> glContext =
GLContextEGL::CreateEGLPixmapOffscreenContext(aSize, aFormat, PR_TRUE);
if (!glContext) {
return nsnull;
}
if (!glContext->GetSharedContext()) {
// no point in returning anything if sharing failed, we can't
// render from this
return nsnull;
}
if (!gUseBackingSurface && !glContext->ResizeOffscreenFBO(aSize)) {
// we weren't able to create the initial
// offscreen FBO, so this is dead
return nsnull;
}
return glContext.forget();
#else
return nsnull;
#endif
}
static ContextFormat
ContentTypeToGLFormat(gfxASurface::gfxContentType aCType)
{
switch (aCType) {
case gfxASurface::CONTENT_COLOR_ALPHA:
return ContextFormat::BasicRGBA32;
case gfxASurface::CONTENT_COLOR:
#ifdef MOZ_GFX_OPTIMIZE_MOBILE
return ContextFormat::BasicRGB16_565;
#else
return ContextFormat::BasicRGB24;
#endif
default:
break;
}
return ContextFormat::BasicRGBA32;
}
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, PR_FALSE);
glContext->HoldSurface(aSurface);
return glContext.forget().get();
#else
// Not implemented
return nsnull;
#endif
}
static nsRefPtr<GLContext> gGlobalContext;
GLContext *
GLContextProviderEGL::GetGlobalContext()
{
static bool triedToCreateContext = false;
if (!triedToCreateContext && !gGlobalContext) {
triedToCreateContext = true;
gGlobalContext =
GLContextEGL::CreateEGLPixmapOffscreenContext(gfxIntSize(16, 16),
ContextFormat(ContextFormat::BasicRGB24),
PR_FALSE);
if (gGlobalContext)
gGlobalContext->SetIsGlobalSharedContext(PR_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);
PRBool 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;
}
EGLint cxattribs[] = {
LOCAL_EGL_CONTEXT_CLIENT_VERSION, 2,
LOCAL_EGL_NONE
};
EGLContext context = sEGLLibrary.fCreateContext(EGL_DISPLAY(),
config,
EGL_NO_CONTEXT,
cxattribs);
if (!context) {
sEGLLibrary.fDestroySurface(EGL_DISPLAY(), surface);
return nsnull;
}
nsRefPtr<GLContextEGL> glContext = new GLContextEGL(aFormat, nsnull,
config, surface, context,
PR_TRUE);
if (!glContext->Init())
{
return nsnull;
}
glContext->HoldSurface(thebesSurface);
return glContext.forget();
}
PRBool 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(PR_TRUE);
return PR_TRUE;
}
#endif
} /* namespace gl */
} /* namespace mozilla */
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