Source code
Revision control
Copy as Markdown
Other Tools
/* -*- 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
#include "RenderCompositorOGL.h"
#include "GLContext.h"
#include "GLContextEGL.h"
#include "GLContextProvider.h"
#include "mozilla/gfx/gfxVars.h"
#include "mozilla/gfx/Logging.h"
#include "mozilla/webrender/RenderThread.h"
#include "mozilla/widget/CompositorWidget.h"
namespace mozilla::wr {
extern LazyLogModule gRenderThreadLog;
#define LOG(...) MOZ_LOG(gRenderThreadLog, LogLevel::Debug, (__VA_ARGS__))
/* static */
UniquePtr<RenderCompositor> RenderCompositorOGL::Create(
const RefPtr<widget::CompositorWidget>& aWidget, nsACString& aError) {
RefPtr<gl::GLContext> gl = RenderThread::Get()->SingletonGL();
if (!gl) {
gl = gl::GLContextProvider::CreateForCompositorWidget(
aWidget, /* aHardwareWebRender */ true, /* aForceAccelerated */ true);
RenderThread::MaybeEnableGLDebugMessage(gl);
}
if (!gl || !gl->MakeCurrent()) {
gfxCriticalNote << "Failed GL context creation for WebRender: "
<< gfx::hexa(gl.get());
return nullptr;
}
return MakeUnique<RenderCompositorOGL>(std::move(gl), aWidget);
}
RenderCompositorOGL::RenderCompositorOGL(
RefPtr<gl::GLContext>&& aGL,
const RefPtr<widget::CompositorWidget>& aWidget)
: RenderCompositor(aWidget), mGL(aGL) {
MOZ_ASSERT(mGL);
LOG("RenderCompositorOGL::RenderCompositorOGL()");
mIsEGL = aGL->GetContextType() == mozilla::gl::GLContextType::EGL;
}
RenderCompositorOGL::~RenderCompositorOGL() {
LOG("RenderCompositorOGL::~RenderCompositorOGL()");
if (!mGL->MakeCurrent()) {
gfxCriticalNote
<< "Failed to make render context current during destroying.";
// Leak resources!
return;
}
}
bool RenderCompositorOGL::BeginFrame() {
if (!mGL->MakeCurrent()) {
gfxCriticalNote << "Failed to make render context current, can't draw.";
return false;
}
mGL->fBindFramebuffer(LOCAL_GL_FRAMEBUFFER, mGL->GetDefaultFramebuffer());
return true;
}
RenderedFrameId RenderCompositorOGL::EndFrame(
const nsTArray<DeviceIntRect>& aDirtyRects) {
RenderedFrameId frameId = GetNextRenderFrameId();
if (UsePartialPresent() && aDirtyRects.Length() > 0) {
gfx::IntRegion bufferInvalid;
const auto bufferSize = GetBufferSize();
for (const DeviceIntRect& rect : aDirtyRects) {
const auto left = std::clamp(rect.min.x, 0, bufferSize.width);
const auto top = std::clamp(rect.min.y, 0, bufferSize.height);
const auto right = std::clamp(rect.max.x, 0, bufferSize.width);
const auto bottom = std::clamp(rect.max.y, 0, bufferSize.height);
const auto width = right - left;
const auto height = bottom - top;
bufferInvalid.OrWith(
gfx::IntRect(left, (GetBufferSize().height - bottom), width, height));
}
gl()->SetDamage(bufferInvalid);
}
mGL->SwapBuffers();
return frameId;
}
void RenderCompositorOGL::Pause() {}
bool RenderCompositorOGL::Resume() { return true; }
LayoutDeviceIntSize RenderCompositorOGL::GetBufferSize() {
return mWidget->GetClientSize();
}
uint32_t RenderCompositorOGL::GetMaxPartialPresentRects() {
return gfx::gfxVars::WebRenderMaxPartialPresentRects();
}
bool RenderCompositorOGL::RequestFullRender() { return false; }
bool RenderCompositorOGL::UsePartialPresent() {
return gfx::gfxVars::WebRenderMaxPartialPresentRects() > 0;
}
bool RenderCompositorOGL::ShouldDrawPreviousPartialPresentRegions() {
return true;
}
size_t RenderCompositorOGL::GetBufferAge() const {
if (!StaticPrefs::
gfx_webrender_allow_partial_present_buffer_age_AtStartup()) {
return 0;
}
return gl()->GetBufferAge();
}
} // namespace mozilla::wr