зеркало из https://github.com/mozilla/gecko-dev.git
113 строки
2.7 KiB
C++
113 строки
2.7 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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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#include "X11TextureHost.h"
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#include "mozilla/layers/BasicCompositor.h"
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#include "mozilla/layers/X11TextureSourceBasic.h"
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#include "mozilla/layers/CompositorOGL.h"
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#include "mozilla/layers/X11TextureSourceOGL.h"
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#include "gfxXlibSurface.h"
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#include "gfx2DGlue.h"
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namespace mozilla {
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namespace layers {
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using namespace mozilla::gfx;
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X11TextureHost::X11TextureHost(TextureFlags aFlags,
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const SurfaceDescriptorX11& aDescriptor)
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: TextureHost(aFlags)
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{
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mSurface = aDescriptor.OpenForeign();
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if (mSurface && !(aFlags & TextureFlags::DEALLOCATE_CLIENT)) {
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mSurface->TakePixmap();
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}
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}
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bool
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X11TextureHost::Lock()
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{
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if (!mCompositor || !mSurface) {
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return false;
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}
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if (!mTextureSource) {
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switch (mCompositor->GetBackendType()) {
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case LayersBackend::LAYERS_BASIC:
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mTextureSource =
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new X11TextureSourceBasic(mCompositor->AsBasicCompositor(), mSurface);
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break;
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case LayersBackend::LAYERS_OPENGL:
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mTextureSource =
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new X11TextureSourceOGL(mCompositor->AsCompositorOGL(), mSurface);
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break;
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default:
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return false;
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}
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}
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return true;
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}
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void
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X11TextureHost::SetTextureSourceProvider(TextureSourceProvider* aProvider)
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{
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mProvider = aProvider;
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if (mProvider) {
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mCompositor = mProvider->AsCompositor();
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} else {
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mCompositor = nullptr;
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}
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if (mTextureSource) {
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mTextureSource->SetTextureSourceProvider(aProvider);
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}
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}
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SurfaceFormat
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X11TextureHost::GetFormat() const
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{
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if (!mSurface) {
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return SurfaceFormat::UNKNOWN;
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}
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gfxContentType type = mSurface->GetContentType();
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if (mCompositor->GetBackendType() == LayersBackend::LAYERS_OPENGL) {
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return X11TextureSourceOGL::ContentTypeToSurfaceFormat(type);
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}
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return X11TextureSourceBasic::ContentTypeToSurfaceFormat(type);
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}
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IntSize
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X11TextureHost::GetSize() const
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{
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if (!mSurface) {
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return IntSize();
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}
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return mSurface->GetSize();
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}
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already_AddRefed<gfx::DataSourceSurface>
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X11TextureHost::GetAsSurface()
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{
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if (!mTextureSource || !mTextureSource->AsSourceBasic()) {
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return nullptr;
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}
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RefPtr<DrawTarget> tempDT =
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gfxPlatform::GetPlatform()->CreateOffscreenContentDrawTarget(
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GetSize(), GetFormat());
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if (!tempDT) {
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return nullptr;
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}
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RefPtr<SourceSurface> surf = mTextureSource->AsSourceBasic()->GetSurface(tempDT);
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if (!surf) {
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return nullptr;
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}
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return surf->GetDataSurface();
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}
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}
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}
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