gecko-dev/gfx/webrender_bindings/RenderCompositorEGL.cpp
sotaro 1b3de0879f Bug 1533296 - Make WebRender error as to Fallback to Compositor rendering during disabling WebRender on android r=nical
On android, android's nsWindow creates LayerManaer only in nsWindow::Create(). When WebRender error happened, gecko just stopped rendering by disabling Webrender.
The nsWindow needs to re-create LayerManager during disabling Webrender. Further, during disabling WebRender, All GeckoSurfaceTextures should not be attached to GLContext. It is for preventing a conflict with AttachToGLContext() call in SurfaceTextureHost::EnsureAttached().

Differential Revision: https://phabricator.services.mozilla.com/D26687

--HG--
extra : moz-landing-system : lando
2019-06-19 16:14:56 +00:00

155 lines
4.3 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "RenderCompositorEGL.h"
#include "GLContext.h"
#include "GLContextEGL.h"
#include "GLContextProvider.h"
#include "GLLibraryEGL.h"
#include "mozilla/webrender/RenderThread.h"
#include "mozilla/widget/CompositorWidget.h"
#ifdef MOZ_WAYLAND
# include "mozilla/widget/GtkCompositorWidget.h"
# include <gdk/gdk.h>
# include <gdk/gdkx.h>
#endif
#ifdef MOZ_WIDGET_ANDROID
# include "GeneratedJNIWrappers.h"
#endif
namespace mozilla {
namespace wr {
/* static */
UniquePtr<RenderCompositor> RenderCompositorEGL::Create(
RefPtr<widget::CompositorWidget> aWidget) {
#ifdef MOZ_WAYLAND
if (GDK_IS_X11_DISPLAY(gdk_display_get_default())) {
return nullptr;
}
#endif
if (!RenderThread::Get()->SharedGL()) {
gfxCriticalNote << "Failed to get shared GL context";
return nullptr;
}
return MakeUnique<RenderCompositorEGL>(aWidget);
}
EGLSurface RenderCompositorEGL::CreateEGLSurface() {
EGLSurface surface = EGL_NO_SURFACE;
surface = gl::GLContextEGL::CreateEGLSurfaceForCompositorWidget(
mWidget, gl::GLContextEGL::Cast(gl())->mConfig);
if (surface == EGL_NO_SURFACE) {
gfxCriticalNote << "Failed to create EGLSurface";
}
return surface;
}
RenderCompositorEGL::RenderCompositorEGL(
RefPtr<widget::CompositorWidget> aWidget)
: RenderCompositor(std::move(aWidget)), mEGLSurface(EGL_NO_SURFACE) {}
RenderCompositorEGL::~RenderCompositorEGL() {
#ifdef MOZ_WIDGET_ANDROID
java::GeckoSurfaceTexture::DestroyUnused((int64_t)gl());
java::GeckoSurfaceTexture::DetachAllFromGLContext((int64_t)gl());
#endif
DestroyEGLSurface();
}
bool RenderCompositorEGL::BeginFrame() {
#ifdef MOZ_WAYLAND
bool newSurface =
mWidget->AsX11() && mWidget->AsX11()->WaylandRequestsUpdatingEGLSurface();
if (newSurface) {
// Destroy EGLSurface if it exists and create a new one. We will set the
// swap interval after MakeCurrent() has been called.
DestroyEGLSurface();
mEGLSurface = CreateEGLSurface();
}
#endif
if (!MakeCurrent()) {
gfxCriticalNote << "Failed to make render context current, can't draw.";
return false;
}
#ifdef MOZ_WAYLAND
if (newSurface) {
// We have a new EGL surface, which on wayland needs to be configured for
// non-blocking buffer swaps. We need MakeCurrent() to set our current EGL
// context before we call eglSwapInterval, which is why we do it here rather
// than where the surface was created.
const auto& gle = gl::GLContextEGL::Cast(gl());
const auto& egl = gle->mEgl;
// Make eglSwapBuffers() non-blocking on wayland.
egl->fSwapInterval(egl->Display(), 0);
}
#endif
#ifdef MOZ_WIDGET_ANDROID
java::GeckoSurfaceTexture::DestroyUnused((int64_t)gl());
#endif
return true;
}
void RenderCompositorEGL::EndFrame() {
if (mEGLSurface != EGL_NO_SURFACE) {
gl()->SwapBuffers();
}
}
void RenderCompositorEGL::WaitForGPU() {}
void RenderCompositorEGL::Pause() {
#ifdef MOZ_WIDGET_ANDROID
java::GeckoSurfaceTexture::DestroyUnused((int64_t)gl());
java::GeckoSurfaceTexture::DetachAllFromGLContext((int64_t)gl());
DestroyEGLSurface();
#endif
}
bool RenderCompositorEGL::Resume() {
#ifdef MOZ_WIDGET_ANDROID
// Destroy EGLSurface if it exists.
DestroyEGLSurface();
mEGLSurface = CreateEGLSurface();
gl::GLContextEGL::Cast(gl())->SetEGLSurfaceOverride(mEGLSurface);
#endif
return true;
}
gl::GLContext* RenderCompositorEGL::gl() const {
return RenderThread::Get()->SharedGL();
}
bool RenderCompositorEGL::MakeCurrent() {
gl::GLContextEGL::Cast(gl())->SetEGLSurfaceOverride(mEGLSurface);
return gl()->MakeCurrent();
}
void RenderCompositorEGL::DestroyEGLSurface() {
const auto& gle = gl::GLContextEGL::Cast(gl());
const auto& egl = gle->mEgl;
// Release EGLSurface of back buffer before calling ResizeBuffers().
if (mEGLSurface) {
gle->SetEGLSurfaceOverride(EGL_NO_SURFACE);
egl->fDestroySurface(egl->Display(), mEGLSurface);
mEGLSurface = nullptr;
}
}
LayoutDeviceIntSize RenderCompositorEGL::GetBufferSize() {
return mWidget->GetClientSize();
}
} // namespace wr
} // namespace mozilla