mirror of
https://github.com/mozilla/gecko-dev.git
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bf7599ac75
MozReview-Commit-ID: 8BjfShvh5gp
1007 lines
32 KiB
C++
1007 lines
32 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#if defined(MOZ_WIDGET_GTK)
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#include <gdk/gdkx.h>
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// we're using default display for now
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#define GET_NATIVE_WINDOW_FROM_REAL_WIDGET(aWidget) ((EGLNativeWindowType)GDK_WINDOW_XID((GdkWindow*)aWidget->GetNativeData(NS_NATIVE_WINDOW)))
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#define GET_NATIVE_WINDOW_FROM_COMPOSITOR_WIDGET(aWidget) ((EGLNativeWindowType)GDK_WINDOW_XID((GdkWindow*)aWidget->RealWidget()->GetNativeData(NS_NATIVE_WINDOW)))
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#elif defined(MOZ_WIDGET_ANDROID)
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#define GET_NATIVE_WINDOW_FROM_REAL_WIDGET(aWidget) ((EGLNativeWindowType)aWidget->GetNativeData(NS_JAVA_SURFACE))
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#define GET_NATIVE_WINDOW_FROM_COMPOSITOR_WIDGET(aWidget) (aWidget->AsAndroid()->GetEGLNativeWindow())
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#else
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#define GET_NATIVE_WINDOW_FROM_REAL_WIDGET(aWidget) ((EGLNativeWindowType)aWidget->GetNativeData(NS_NATIVE_WINDOW))
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#define GET_NATIVE_WINDOW_FROM_COMPOSITOR_WIDGET(aWidget) ((EGLNativeWindowType)aWidget->RealWidget()->GetNativeData(NS_NATIVE_WINDOW))
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#endif
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#if defined(XP_UNIX)
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#ifdef MOZ_WIDGET_ANDROID
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#include <android/native_window.h>
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#include <android/native_window_jni.h>
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#include "mozilla/widget/AndroidCompositorWidget.h"
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#endif
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#define GLES2_LIB "libGLESv2.so"
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#define GLES2_LIB2 "libGLESv2.so.2"
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#elif defined(XP_WIN)
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#include "nsIFile.h"
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#define GLES2_LIB "libGLESv2.dll"
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#ifndef WIN32_LEAN_AND_MEAN
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#define WIN32_LEAN_AND_MEAN 1
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#endif
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#include <windows.h>
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#else
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#error "Platform not recognized"
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#endif
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#include "gfxASurface.h"
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#include "gfxCrashReporterUtils.h"
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#include "gfxFailure.h"
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#include "gfxPlatform.h"
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#include "gfxUtils.h"
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#include "GLBlitHelper.h"
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#include "GLContextEGL.h"
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#include "GLContextProvider.h"
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#include "GLLibraryEGL.h"
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#include "mozilla/ArrayUtils.h"
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#include "mozilla/Preferences.h"
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#include "mozilla/layers/CompositorOptions.h"
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#include "mozilla/widget/CompositorWidget.h"
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#include "nsDebug.h"
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#include "nsIWidget.h"
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#include "nsThreadUtils.h"
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#include "ScopedGLHelpers.h"
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#include "TextureImageEGL.h"
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using namespace mozilla::gfx;
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namespace mozilla {
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namespace gl {
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using namespace mozilla::widget;
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#define ADD_ATTR_2(_array, _k, _v) do { \
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(_array).AppendElement(_k); \
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(_array).AppendElement(_v); \
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} while (0)
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#define ADD_ATTR_1(_array, _k) do { \
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(_array).AppendElement(_k); \
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} while (0)
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static bool
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CreateConfig(EGLConfig* aConfig);
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// append three zeros at the end of attribs list to work around
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// EGL implementation bugs that iterate until they find 0, instead of
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// EGL_NONE. See bug 948406.
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#define EGL_ATTRIBS_LIST_SAFE_TERMINATION_WORKING_AROUND_BUGS \
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LOCAL_EGL_NONE, 0, 0, 0
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static EGLint gTerminationAttribs[] = {
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EGL_ATTRIBS_LIST_SAFE_TERMINATION_WORKING_AROUND_BUGS
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};
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static int
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next_power_of_two(int v)
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{
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v--;
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v |= v >> 1;
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v |= v >> 2;
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v |= v >> 4;
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v |= v >> 8;
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v |= v >> 16;
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v++;
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return v;
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}
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static bool
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is_power_of_two(int v)
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{
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NS_ASSERTION(v >= 0, "bad value");
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if (v == 0)
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return true;
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return (v & (v-1)) == 0;
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}
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static void
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DestroySurface(EGLSurface oldSurface) {
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if (oldSurface != EGL_NO_SURFACE) {
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sEGLLibrary.fMakeCurrent(EGL_DISPLAY(),
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EGL_NO_SURFACE, EGL_NO_SURFACE,
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EGL_NO_CONTEXT);
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sEGLLibrary.fDestroySurface(EGL_DISPLAY(), oldSurface);
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}
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}
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static EGLSurface
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CreateSurfaceFromNativeWindow(EGLNativeWindowType window, const EGLConfig& config) {
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EGLSurface newSurface = nullptr;
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MOZ_ASSERT(window);
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#ifdef MOZ_WIDGET_ANDROID
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JNIEnv* const env = jni::GetEnvForThread();
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ANativeWindow* const nativeWindow = ANativeWindow_fromSurface(
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env, reinterpret_cast<jobject>(window));
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newSurface = sEGLLibrary.fCreateWindowSurface(
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sEGLLibrary.fGetDisplay(EGL_DEFAULT_DISPLAY),
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config, nativeWindow, 0);
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ANativeWindow_release(nativeWindow);
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#else
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newSurface = sEGLLibrary.fCreateWindowSurface(EGL_DISPLAY(), config,
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window, 0);
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#endif
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return newSurface;
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}
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/* GLContextEGLFactory class was added as a friend of GLContextEGL
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* so that it could access GLContextEGL::CreateGLContext. This was
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* done so that a new function would not need to be added to the shared
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* GLContextProvider interface.
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*/
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class GLContextEGLFactory {
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public:
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static already_AddRefed<GLContext> Create(EGLNativeWindowType aWindow,
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bool aWebRender);
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private:
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GLContextEGLFactory(){}
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~GLContextEGLFactory(){}
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};
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already_AddRefed<GLContext>
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GLContextEGLFactory::Create(EGLNativeWindowType aWindow,
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bool aWebRender)
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{
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MOZ_ASSERT(aWindow);
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nsCString discardFailureId;
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if (!sEGLLibrary.EnsureInitialized(false, &discardFailureId)) {
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MOZ_CRASH("GFX: Failed to load EGL library 3!\n");
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return nullptr;
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}
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bool doubleBuffered = true;
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EGLConfig config;
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if (!CreateConfig(&config)) {
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MOZ_CRASH("GFX: Failed to create EGLConfig!\n");
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return nullptr;
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}
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EGLSurface surface = mozilla::gl::CreateSurfaceFromNativeWindow(aWindow, config);
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if (!surface) {
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MOZ_CRASH("GFX: Failed to create EGLSurface!\n");
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return nullptr;
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}
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CreateContextFlags flags = CreateContextFlags::NONE;
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if (aWebRender) {
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flags |= CreateContextFlags::PREFER_ES3;
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}
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SurfaceCaps caps = SurfaceCaps::Any();
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RefPtr<GLContextEGL> gl = GLContextEGL::CreateGLContext(flags,
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caps, nullptr, false, config,
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surface, &discardFailureId);
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if (!gl) {
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MOZ_CRASH("GFX: Failed to create EGLContext!\n");
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mozilla::gl::DestroySurface(surface);
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return nullptr;
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}
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gl->MakeCurrent();
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gl->SetIsDoubleBuffered(doubleBuffered);
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return gl.forget();
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}
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GLContextEGL::GLContextEGL(CreateContextFlags flags, const SurfaceCaps& caps,
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GLContext* shareContext, bool isOffscreen, EGLConfig config,
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EGLSurface surface, EGLContext context)
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: GLContext(flags, caps, shareContext, isOffscreen)
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, mConfig(config)
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, mSurface(surface)
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, mContext(context)
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, mSurfaceOverride(EGL_NO_SURFACE)
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, mThebesSurface(nullptr)
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, mBound(false)
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, mIsPBuffer(false)
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, mIsDoubleBuffered(false)
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, mCanBindToTexture(false)
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, mShareWithEGLImage(false)
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, mOwnsContext(true)
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{
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// any EGL contexts will always be GLESv2
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SetProfileVersion(ContextProfile::OpenGLES, 200);
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#ifdef DEBUG
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printf_stderr("Initializing context %p surface %p on display %p\n", mContext, mSurface, EGL_DISPLAY());
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#endif
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}
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GLContextEGL::~GLContextEGL()
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{
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MarkDestroyed();
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// Wrapped context should not destroy eglContext/Surface
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if (!mOwnsContext) {
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return;
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}
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#ifdef DEBUG
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printf_stderr("Destroying context %p surface %p on display %p\n", mContext, mSurface, EGL_DISPLAY());
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#endif
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sEGLLibrary.fDestroyContext(EGL_DISPLAY(), mContext);
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sEGLLibrary.UnsetCachedCurrentContext();
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mozilla::gl::DestroySurface(mSurface);
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}
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bool
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GLContextEGL::Init()
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{
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#if defined(ANDROID)
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// We can't use LoadApitraceLibrary here because the GLContext
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// expects its own handle to the GL library
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if (!OpenLibrary(APITRACE_LIB))
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#endif
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if (!OpenLibrary(GLES2_LIB)) {
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#if defined(XP_UNIX)
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if (!OpenLibrary(GLES2_LIB2)) {
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NS_WARNING("Couldn't load GLES2 LIB.");
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return false;
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}
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#endif
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}
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SetupLookupFunction();
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if (!InitWithPrefix("gl", true))
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return false;
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bool current = MakeCurrent();
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if (!current) {
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gfx::LogFailure(NS_LITERAL_CSTRING(
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"Couldn't get device attachments for device."));
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return false;
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}
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static_assert(sizeof(GLint) >= sizeof(int32_t), "GLint is smaller than int32_t");
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mMaxTextureImageSize = INT32_MAX;
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mShareWithEGLImage = sEGLLibrary.HasKHRImageBase() &&
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sEGLLibrary.HasKHRImageTexture2D() &&
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IsExtensionSupported(OES_EGL_image);
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return true;
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}
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bool
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GLContextEGL::BindTexImage()
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{
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if (!mSurface)
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return false;
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if (mBound && !ReleaseTexImage())
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return false;
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EGLBoolean success = sEGLLibrary.fBindTexImage(EGL_DISPLAY(),
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(EGLSurface)mSurface, LOCAL_EGL_BACK_BUFFER);
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if (success == LOCAL_EGL_FALSE)
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return false;
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mBound = true;
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return true;
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}
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bool
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GLContextEGL::ReleaseTexImage()
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{
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if (!mBound)
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return true;
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if (!mSurface)
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return false;
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EGLBoolean success;
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success = sEGLLibrary.fReleaseTexImage(EGL_DISPLAY(),
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(EGLSurface)mSurface,
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LOCAL_EGL_BACK_BUFFER);
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if (success == LOCAL_EGL_FALSE)
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return false;
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mBound = false;
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return true;
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}
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void
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GLContextEGL::SetEGLSurfaceOverride(EGLSurface surf) {
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if (Screen()) {
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/* Blit `draw` to `read` if we need to, before we potentially juggle
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* `read` around. If we don't, we might attach a different `read`,
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* and *then* hit AssureBlitted, which will blit a dirty `draw` onto
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* the wrong `read`!
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*/
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Screen()->AssureBlitted();
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}
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mSurfaceOverride = surf;
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DebugOnly<bool> ok = MakeCurrent(true);
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MOZ_ASSERT(ok);
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}
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bool
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GLContextEGL::MakeCurrentImpl(bool aForce) {
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bool succeeded = true;
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// Assume that EGL has the same problem as WGL does,
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// where MakeCurrent with an already-current context is
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// still expensive.
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bool hasDifferentContext = false;
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if (sEGLLibrary.CachedCurrentContext() != mContext) {
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// even if the cached context doesn't match the current one
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// might still
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if (sEGLLibrary.fGetCurrentContext() != mContext) {
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hasDifferentContext = true;
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} else {
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sEGLLibrary.SetCachedCurrentContext(mContext);
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}
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}
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if (aForce || hasDifferentContext) {
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EGLSurface surface = mSurfaceOverride != EGL_NO_SURFACE
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? mSurfaceOverride
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: mSurface;
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if (surface == EGL_NO_SURFACE) {
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return false;
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}
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succeeded = sEGLLibrary.fMakeCurrent(EGL_DISPLAY(),
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surface, surface,
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mContext);
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if (!succeeded) {
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int eglError = sEGLLibrary.fGetError();
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if (eglError == LOCAL_EGL_CONTEXT_LOST) {
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mContextLost = true;
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NS_WARNING("EGL context has been lost.");
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} else {
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NS_WARNING("Failed to make GL context current!");
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#ifdef DEBUG
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printf_stderr("EGL Error: 0x%04x\n", eglError);
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#endif
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}
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} else {
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sEGLLibrary.SetCachedCurrentContext(mContext);
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}
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} else {
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MOZ_ASSERT(sEGLLibrary.CachedCurrentContextMatches());
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}
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return succeeded;
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}
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bool
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GLContextEGL::IsCurrent() {
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return sEGLLibrary.fGetCurrentContext() == mContext;
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}
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bool
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GLContextEGL::RenewSurface(CompositorWidget* aWidget) {
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if (!mOwnsContext) {
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return false;
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}
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// unconditionally release the surface and create a new one. Don't try to optimize this away.
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// If we get here, then by definition we know that we want to get a new surface.
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ReleaseSurface();
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MOZ_ASSERT(aWidget);
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mSurface = mozilla::gl::CreateSurfaceFromNativeWindow(GET_NATIVE_WINDOW_FROM_COMPOSITOR_WIDGET(aWidget), mConfig);
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if (!mSurface) {
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return false;
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}
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return MakeCurrent(true);
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}
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void
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GLContextEGL::ReleaseSurface() {
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if (mOwnsContext) {
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mozilla::gl::DestroySurface(mSurface);
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}
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if (mSurface == mSurfaceOverride) {
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mSurfaceOverride = EGL_NO_SURFACE;
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}
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mSurface = EGL_NO_SURFACE;
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}
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bool
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GLContextEGL::SetupLookupFunction()
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{
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mLookupFunc = (PlatformLookupFunction)sEGLLibrary.mSymbols.fGetProcAddress;
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return true;
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}
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bool
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GLContextEGL::SwapBuffers()
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{
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EGLSurface surface = mSurfaceOverride != EGL_NO_SURFACE
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? mSurfaceOverride
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: mSurface;
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if (surface) {
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return sEGLLibrary.fSwapBuffers(EGL_DISPLAY(), surface);
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} else {
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return false;
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}
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}
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void
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GLContextEGL::GetWSIInfo(nsCString* const out) const
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{
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out->AppendLiteral("EGL_VENDOR: ");
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out->Append((const char*)sEGLLibrary.fQueryString(EGL_DISPLAY(), LOCAL_EGL_VENDOR));
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out->AppendLiteral("\nEGL_VERSION: ");
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out->Append((const char*)sEGLLibrary.fQueryString(EGL_DISPLAY(), LOCAL_EGL_VERSION));
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out->AppendLiteral("\nEGL_EXTENSIONS: ");
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out->Append((const char*)sEGLLibrary.fQueryString(EGL_DISPLAY(), LOCAL_EGL_EXTENSIONS));
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#ifndef ANDROID // This query will crash some old android.
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out->AppendLiteral("\nEGL_EXTENSIONS(nullptr): ");
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out->Append((const char*)sEGLLibrary.fQueryString(nullptr, LOCAL_EGL_EXTENSIONS));
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#endif
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}
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// hold a reference to the given surface
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// for the lifetime of this context.
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void
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GLContextEGL::HoldSurface(gfxASurface* aSurf) {
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mThebesSurface = aSurf;
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}
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already_AddRefed<GLContextEGL>
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GLContextEGL::CreateGLContext(CreateContextFlags flags,
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const SurfaceCaps& caps,
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GLContextEGL* shareContext,
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bool isOffscreen,
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EGLConfig config,
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EGLSurface surface,
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nsACString* const out_failureId)
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{
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if (sEGLLibrary.fBindAPI(LOCAL_EGL_OPENGL_ES_API) == LOCAL_EGL_FALSE) {
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*out_failureId = NS_LITERAL_CSTRING("FEATURE_FAILURE_EGL_ES");
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NS_WARNING("Failed to bind API to GLES!");
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return nullptr;
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}
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EGLContext eglShareContext = shareContext ? shareContext->mContext
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: EGL_NO_CONTEXT;
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nsTArray<EGLint> contextAttribs;
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contextAttribs.AppendElement(LOCAL_EGL_CONTEXT_CLIENT_VERSION);
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if (flags & CreateContextFlags::PREFER_ES3)
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contextAttribs.AppendElement(3);
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else
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contextAttribs.AppendElement(2);
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if (sEGLLibrary.HasRobustness()) {
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// contextAttribs.AppendElement(LOCAL_EGL_CONTEXT_ROBUST_ACCESS_EXT);
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// contextAttribs.AppendElement(LOCAL_EGL_TRUE);
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}
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for (size_t i = 0; i < MOZ_ARRAY_LENGTH(gTerminationAttribs); i++) {
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contextAttribs.AppendElement(gTerminationAttribs[i]);
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}
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EGLContext context = sEGLLibrary.fCreateContext(EGL_DISPLAY(),
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config,
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eglShareContext,
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contextAttribs.Elements());
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if (!context && shareContext) {
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shareContext = nullptr;
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context = sEGLLibrary.fCreateContext(EGL_DISPLAY(), config, EGL_NO_CONTEXT,
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contextAttribs.Elements());
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}
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if (!context) {
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*out_failureId = NS_LITERAL_CSTRING("FEATURE_FAILURE_EGL_CREATE");
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NS_WARNING("Failed to create EGLContext!");
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return nullptr;
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}
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|
|
RefPtr<GLContextEGL> glContext = new GLContextEGL(flags, caps, shareContext,
|
|
isOffscreen, config, surface,
|
|
context);
|
|
|
|
if (!glContext->Init()) {
|
|
*out_failureId = NS_LITERAL_CSTRING("FEATURE_FAILURE_EGL_INIT");
|
|
return nullptr;
|
|
}
|
|
|
|
return glContext.forget();
|
|
}
|
|
|
|
EGLSurface
|
|
GLContextEGL::CreatePBufferSurfaceTryingPowerOfTwo(EGLConfig config,
|
|
EGLenum bindToTextureFormat,
|
|
mozilla::gfx::IntSize& pbsize)
|
|
{
|
|
nsTArray<EGLint> pbattrs(16);
|
|
EGLSurface surface = nullptr;
|
|
|
|
TRY_AGAIN_POWER_OF_TWO:
|
|
pbattrs.Clear();
|
|
pbattrs.AppendElement(LOCAL_EGL_WIDTH); pbattrs.AppendElement(pbsize.width);
|
|
pbattrs.AppendElement(LOCAL_EGL_HEIGHT); pbattrs.AppendElement(pbsize.height);
|
|
|
|
if (bindToTextureFormat != LOCAL_EGL_NONE) {
|
|
pbattrs.AppendElement(LOCAL_EGL_TEXTURE_TARGET);
|
|
pbattrs.AppendElement(LOCAL_EGL_TEXTURE_2D);
|
|
|
|
pbattrs.AppendElement(LOCAL_EGL_TEXTURE_FORMAT);
|
|
pbattrs.AppendElement(bindToTextureFormat);
|
|
}
|
|
|
|
for (size_t i = 0; i < MOZ_ARRAY_LENGTH(gTerminationAttribs); i++) {
|
|
pbattrs.AppendElement(gTerminationAttribs[i]);
|
|
}
|
|
|
|
surface = sEGLLibrary.fCreatePbufferSurface(EGL_DISPLAY(), config, &pbattrs[0]);
|
|
if (!surface) {
|
|
if (!is_power_of_two(pbsize.width) ||
|
|
!is_power_of_two(pbsize.height))
|
|
{
|
|
if (!is_power_of_two(pbsize.width))
|
|
pbsize.width = next_power_of_two(pbsize.width);
|
|
if (!is_power_of_two(pbsize.height))
|
|
pbsize.height = next_power_of_two(pbsize.height);
|
|
|
|
NS_WARNING("Failed to create pbuffer, trying power of two dims");
|
|
goto TRY_AGAIN_POWER_OF_TWO;
|
|
}
|
|
|
|
NS_WARNING("Failed to create pbuffer surface");
|
|
return nullptr;
|
|
}
|
|
|
|
return surface;
|
|
}
|
|
|
|
static const EGLint kEGLConfigAttribsOffscreenPBuffer[] = {
|
|
LOCAL_EGL_SURFACE_TYPE, LOCAL_EGL_PBUFFER_BIT,
|
|
LOCAL_EGL_RENDERABLE_TYPE, LOCAL_EGL_OPENGL_ES2_BIT,
|
|
// Old versions of llvmpipe seem to need this to properly create the pbuffer (bug 981856)
|
|
LOCAL_EGL_RED_SIZE, 8,
|
|
LOCAL_EGL_GREEN_SIZE, 8,
|
|
LOCAL_EGL_BLUE_SIZE, 8,
|
|
LOCAL_EGL_ALPHA_SIZE, 0,
|
|
EGL_ATTRIBS_LIST_SAFE_TERMINATION_WORKING_AROUND_BUGS
|
|
};
|
|
|
|
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,
|
|
EGL_ATTRIBS_LIST_SAFE_TERMINATION_WORKING_AROUND_BUGS
|
|
};
|
|
|
|
static const EGLint kEGLConfigAttribsRGB24[] = {
|
|
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, 0,
|
|
EGL_ATTRIBS_LIST_SAFE_TERMINATION_WORKING_AROUND_BUGS
|
|
};
|
|
|
|
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,
|
|
EGL_ATTRIBS_LIST_SAFE_TERMINATION_WORKING_AROUND_BUGS
|
|
};
|
|
|
|
static bool
|
|
CreateConfig(EGLConfig* aConfig, int32_t depth)
|
|
{
|
|
EGLConfig configs[64];
|
|
const EGLint* attribs;
|
|
EGLint ncfg = ArrayLength(configs);
|
|
|
|
switch (depth) {
|
|
case 16:
|
|
attribs = kEGLConfigAttribsRGB16;
|
|
break;
|
|
case 24:
|
|
attribs = kEGLConfigAttribsRGB24;
|
|
break;
|
|
case 32:
|
|
attribs = kEGLConfigAttribsRGBA32;
|
|
break;
|
|
default:
|
|
NS_ERROR("Unknown pixel depth");
|
|
return false;
|
|
}
|
|
|
|
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) ||
|
|
(depth == 32 && r == 8 && g == 8 && b == 8 && a == 8)))
|
|
{
|
|
*aConfig = config;
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// 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)
|
|
{
|
|
int32_t depth = gfxPlatform::GetPlatform()->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);
|
|
}
|
|
// Bug 970096
|
|
// Some devices that have 24 bit screens only support 16 bit OpenGL?
|
|
if (depth == 24) {
|
|
return CreateConfig(aConfig, 16);
|
|
}
|
|
#endif
|
|
return false;
|
|
} else {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
already_AddRefed<GLContext>
|
|
GLContextProviderEGL::CreateWrappingExisting(void* aContext, void* aSurface)
|
|
{
|
|
nsCString discardFailureId;
|
|
if (!sEGLLibrary.EnsureInitialized(false, &discardFailureId)) {
|
|
MOZ_CRASH("GFX: Failed to load EGL library 2!\n");
|
|
return nullptr;
|
|
}
|
|
|
|
if (!aContext || !aSurface)
|
|
return nullptr;
|
|
|
|
SurfaceCaps caps = SurfaceCaps::Any();
|
|
EGLConfig config = EGL_NO_CONFIG;
|
|
RefPtr<GLContextEGL> gl = new GLContextEGL(CreateContextFlags::NONE, caps, nullptr,
|
|
false, config, (EGLSurface)aSurface,
|
|
(EGLContext)aContext);
|
|
gl->SetIsDoubleBuffered(true);
|
|
gl->mOwnsContext = false;
|
|
|
|
return gl.forget();
|
|
}
|
|
|
|
already_AddRefed<GLContext>
|
|
GLContextProviderEGL::CreateForCompositorWidget(CompositorWidget* aCompositorWidget, bool aForceAccelerated)
|
|
{
|
|
MOZ_ASSERT(aCompositorWidget);
|
|
return GLContextEGLFactory::Create(GET_NATIVE_WINDOW_FROM_COMPOSITOR_WIDGET(aCompositorWidget),
|
|
aCompositorWidget->GetCompositorOptions().UseWebRender());
|
|
}
|
|
|
|
already_AddRefed<GLContext>
|
|
GLContextProviderEGL::CreateForWindow(nsIWidget* aWidget,
|
|
bool aWebRender,
|
|
bool aForceAccelerated)
|
|
{
|
|
MOZ_ASSERT(aWidget);
|
|
return GLContextEGLFactory::Create(GET_NATIVE_WINDOW_FROM_REAL_WIDGET(aWidget),
|
|
aWebRender);
|
|
}
|
|
|
|
#if defined(ANDROID)
|
|
EGLSurface
|
|
GLContextProviderEGL::CreateEGLSurface(void* aWindow)
|
|
{
|
|
// NOTE: aWindow is an ANativeWindow
|
|
nsCString discardFailureId;
|
|
if (!sEGLLibrary.EnsureInitialized(false, &discardFailureId)) {
|
|
MOZ_CRASH("GFX: Failed to load EGL library 4!\n");
|
|
}
|
|
|
|
EGLConfig config;
|
|
if (!CreateConfig(&config)) {
|
|
MOZ_CRASH("GFX: Failed to create EGLConfig 2!\n");
|
|
}
|
|
|
|
MOZ_ASSERT(aWindow);
|
|
|
|
EGLSurface surface = sEGLLibrary.fCreateWindowSurface(EGL_DISPLAY(), config, aWindow,
|
|
0);
|
|
if (surface == EGL_NO_SURFACE) {
|
|
MOZ_CRASH("GFX: Failed to create EGLSurface 2!\n");
|
|
}
|
|
|
|
return surface;
|
|
}
|
|
|
|
void
|
|
GLContextProviderEGL::DestroyEGLSurface(EGLSurface surface)
|
|
{
|
|
nsCString discardFailureId;
|
|
if (!sEGLLibrary.EnsureInitialized(false, &discardFailureId)) {
|
|
MOZ_CRASH("GFX: Failed to load EGL library 5!\n");
|
|
}
|
|
|
|
sEGLLibrary.fDestroySurface(EGL_DISPLAY(), surface);
|
|
}
|
|
#endif // defined(ANDROID)
|
|
|
|
static void
|
|
FillContextAttribs(bool alpha, bool depth, bool stencil, bool bpp16,
|
|
bool es3, nsTArray<EGLint>* out)
|
|
{
|
|
out->AppendElement(LOCAL_EGL_SURFACE_TYPE);
|
|
out->AppendElement(LOCAL_EGL_PBUFFER_BIT);
|
|
|
|
out->AppendElement(LOCAL_EGL_RENDERABLE_TYPE);
|
|
if (es3) {
|
|
out->AppendElement(LOCAL_EGL_OPENGL_ES3_BIT_KHR);
|
|
} else {
|
|
out->AppendElement(LOCAL_EGL_OPENGL_ES2_BIT);
|
|
}
|
|
|
|
out->AppendElement(LOCAL_EGL_RED_SIZE);
|
|
if (bpp16) {
|
|
out->AppendElement(alpha ? 4 : 5);
|
|
} else {
|
|
out->AppendElement(8);
|
|
}
|
|
|
|
out->AppendElement(LOCAL_EGL_GREEN_SIZE);
|
|
if (bpp16) {
|
|
out->AppendElement(alpha ? 4 : 6);
|
|
} else {
|
|
out->AppendElement(8);
|
|
}
|
|
|
|
out->AppendElement(LOCAL_EGL_BLUE_SIZE);
|
|
if (bpp16) {
|
|
out->AppendElement(alpha ? 4 : 5);
|
|
} else {
|
|
out->AppendElement(8);
|
|
}
|
|
|
|
out->AppendElement(LOCAL_EGL_ALPHA_SIZE);
|
|
if (alpha) {
|
|
out->AppendElement(bpp16 ? 4 : 8);
|
|
} else {
|
|
out->AppendElement(0);
|
|
}
|
|
|
|
out->AppendElement(LOCAL_EGL_DEPTH_SIZE);
|
|
out->AppendElement(depth ? 16 : 0);
|
|
|
|
out->AppendElement(LOCAL_EGL_STENCIL_SIZE);
|
|
out->AppendElement(stencil ? 8 : 0);
|
|
|
|
// EGL_ATTRIBS_LIST_SAFE_TERMINATION_WORKING_AROUND_BUGS
|
|
out->AppendElement(LOCAL_EGL_NONE);
|
|
out->AppendElement(0);
|
|
|
|
out->AppendElement(0);
|
|
out->AppendElement(0);
|
|
}
|
|
|
|
static GLint
|
|
GetAttrib(GLLibraryEGL* egl, EGLConfig config, EGLint attrib)
|
|
{
|
|
EGLint bits = 0;
|
|
egl->fGetConfigAttrib(egl->Display(), config, attrib, &bits);
|
|
MOZ_ASSERT(egl->fGetError() == LOCAL_EGL_SUCCESS);
|
|
|
|
return bits;
|
|
}
|
|
|
|
static EGLConfig
|
|
ChooseConfig(GLLibraryEGL* egl, CreateContextFlags flags, const SurfaceCaps& minCaps,
|
|
SurfaceCaps* const out_configCaps)
|
|
{
|
|
nsTArray<EGLint> configAttribList;
|
|
FillContextAttribs(minCaps.alpha, minCaps.depth, minCaps.stencil, minCaps.bpp16,
|
|
bool(flags & CreateContextFlags::PREFER_ES3), &configAttribList);
|
|
|
|
const EGLint* configAttribs = configAttribList.Elements();
|
|
|
|
// We're guaranteed to get at least minCaps, and the sorting dictated by the spec for
|
|
// eglChooseConfig reasonably assures that a reasonable 'best' config is on top.
|
|
const EGLint kMaxConfigs = 1;
|
|
EGLConfig configs[kMaxConfigs];
|
|
EGLint foundConfigs = 0;
|
|
if (!egl->fChooseConfig(egl->Display(), configAttribs, configs, kMaxConfigs,
|
|
&foundConfigs)
|
|
|| foundConfigs == 0)
|
|
{
|
|
return EGL_NO_CONFIG;
|
|
}
|
|
|
|
EGLConfig config = configs[0];
|
|
|
|
*out_configCaps = minCaps; // Pick up any preserve, etc.
|
|
out_configCaps->color = true;
|
|
out_configCaps->alpha = bool(GetAttrib(egl, config, LOCAL_EGL_ALPHA_SIZE));
|
|
out_configCaps->depth = bool(GetAttrib(egl, config, LOCAL_EGL_DEPTH_SIZE));
|
|
out_configCaps->stencil = bool(GetAttrib(egl, config, LOCAL_EGL_STENCIL_SIZE));
|
|
out_configCaps->bpp16 = (GetAttrib(egl, config, LOCAL_EGL_RED_SIZE) < 8);
|
|
|
|
return config;
|
|
}
|
|
|
|
/*static*/ already_AddRefed<GLContextEGL>
|
|
GLContextEGL::CreateEGLPBufferOffscreenContext(CreateContextFlags flags,
|
|
const mozilla::gfx::IntSize& size,
|
|
const SurfaceCaps& minCaps,
|
|
nsACString* const out_failureId)
|
|
{
|
|
bool forceEnableHardware = bool(flags & CreateContextFlags::FORCE_ENABLE_HARDWARE);
|
|
if (!sEGLLibrary.EnsureInitialized(forceEnableHardware, out_failureId)) {
|
|
return nullptr;
|
|
}
|
|
|
|
SurfaceCaps configCaps;
|
|
EGLConfig config = ChooseConfig(&sEGLLibrary, flags, minCaps, &configCaps);
|
|
if (config == EGL_NO_CONFIG) {
|
|
*out_failureId = NS_LITERAL_CSTRING("FEATURE_FAILURE_EGL_NO_CONFIG");
|
|
NS_WARNING("Failed to find a compatible config.");
|
|
return nullptr;
|
|
}
|
|
|
|
if (GLContext::ShouldSpew()) {
|
|
sEGLLibrary.DumpEGLConfig(config);
|
|
}
|
|
|
|
mozilla::gfx::IntSize pbSize(size);
|
|
EGLSurface surface = GLContextEGL::CreatePBufferSurfaceTryingPowerOfTwo(config,
|
|
LOCAL_EGL_NONE,
|
|
pbSize);
|
|
if (!surface) {
|
|
*out_failureId = NS_LITERAL_CSTRING("FEATURE_FAILURE_EGL_POT");
|
|
NS_WARNING("Failed to create PBuffer for context!");
|
|
return nullptr;
|
|
}
|
|
|
|
RefPtr<GLContextEGL> gl = GLContextEGL::CreateGLContext(flags, configCaps, nullptr,
|
|
true, config, surface,
|
|
out_failureId);
|
|
if (!gl) {
|
|
NS_WARNING("Failed to create GLContext from PBuffer");
|
|
sEGLLibrary.fDestroySurface(sEGLLibrary.Display(), surface);
|
|
return nullptr;
|
|
}
|
|
|
|
return gl.forget();
|
|
}
|
|
|
|
/*static*/ already_AddRefed<GLContext>
|
|
GLContextProviderEGL::CreateHeadless(CreateContextFlags flags,
|
|
nsACString* const out_failureId)
|
|
{
|
|
mozilla::gfx::IntSize dummySize = mozilla::gfx::IntSize(16, 16);
|
|
SurfaceCaps dummyCaps = SurfaceCaps::Any();
|
|
return GLContextEGL::CreateEGLPBufferOffscreenContext(flags, dummySize, dummyCaps,
|
|
out_failureId);
|
|
}
|
|
|
|
// Under EGL, on Android, pbuffers are supported fine, though
|
|
// often without the ability to texture from them directly.
|
|
/*static*/ already_AddRefed<GLContext>
|
|
GLContextProviderEGL::CreateOffscreen(const mozilla::gfx::IntSize& size,
|
|
const SurfaceCaps& minCaps,
|
|
CreateContextFlags flags,
|
|
nsACString* const out_failureId)
|
|
{
|
|
bool forceEnableHardware = bool(flags & CreateContextFlags::FORCE_ENABLE_HARDWARE);
|
|
if (!sEGLLibrary.EnsureInitialized(forceEnableHardware, out_failureId)) { // Needed for IsANGLE().
|
|
return nullptr;
|
|
}
|
|
|
|
bool canOffscreenUseHeadless = true;
|
|
if (sEGLLibrary.IsANGLE()) {
|
|
// ANGLE needs to use PBuffers.
|
|
canOffscreenUseHeadless = false;
|
|
}
|
|
|
|
RefPtr<GLContext> gl;
|
|
SurfaceCaps minOffscreenCaps = minCaps;
|
|
|
|
if (canOffscreenUseHeadless) {
|
|
gl = CreateHeadless(flags, out_failureId);
|
|
if (!gl) {
|
|
return nullptr;
|
|
}
|
|
} else {
|
|
SurfaceCaps minBackbufferCaps = minOffscreenCaps;
|
|
if (minOffscreenCaps.antialias) {
|
|
minBackbufferCaps.antialias = false;
|
|
minBackbufferCaps.depth = false;
|
|
minBackbufferCaps.stencil = false;
|
|
}
|
|
|
|
gl = GLContextEGL::CreateEGLPBufferOffscreenContext(flags, size,
|
|
minBackbufferCaps,
|
|
out_failureId);
|
|
if (!gl)
|
|
return nullptr;
|
|
|
|
// Pull the actual resulting caps to ensure that our offscreen matches our
|
|
// backbuffer.
|
|
minOffscreenCaps.alpha = gl->Caps().alpha;
|
|
if (!minOffscreenCaps.antialias) {
|
|
// Only update these if we don't have AA. If we do have AA, we ignore
|
|
// backbuffer depth/stencil.
|
|
minOffscreenCaps.depth = gl->Caps().depth;
|
|
minOffscreenCaps.stencil = gl->Caps().stencil;
|
|
}
|
|
}
|
|
|
|
// Init the offscreen with the updated offscreen caps.
|
|
if (!gl->InitOffscreen(size, minOffscreenCaps)) {
|
|
*out_failureId = NS_LITERAL_CSTRING("FEATURE_FAILURE_EGL_OFFSCREEN");
|
|
return nullptr;
|
|
}
|
|
|
|
return gl.forget();
|
|
}
|
|
|
|
// Don't want a global context on Android as 1) share groups across 2 threads fail on many Tegra drivers (bug 759225)
|
|
// and 2) some mobile devices have a very strict limit on global number of GL contexts (bug 754257)
|
|
// and 3) each EGL context eats 750k on B2G (bug 813783)
|
|
/*static*/ GLContext*
|
|
GLContextProviderEGL::GetGlobalContext()
|
|
{
|
|
return nullptr;
|
|
}
|
|
|
|
/*static*/ void
|
|
GLContextProviderEGL::Shutdown()
|
|
{
|
|
}
|
|
|
|
} /* namespace gl */
|
|
} /* namespace mozilla */
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#undef EGL_ATTRIBS_LIST_SAFE_TERMINATION_WORKING_AROUND_BUGS
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