зеркало из https://github.com/mozilla/gecko-dev.git
113 строки
3.6 KiB
C++
113 строки
3.6 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 "WaylandDMABUFTextureClientOGL.h"
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#include "mozilla/widget/WaylandDMABufSurface.h"
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#include "gfxPlatform.h"
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namespace mozilla::layers {
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using namespace gfx;
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WaylandDMABUFTextureData::WaylandDMABUFTextureData(
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WaylandDMABufSurface* aSurface, BackendType aBackend)
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: mSurface(aSurface), mBackend(aBackend) {
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MOZ_ASSERT(mSurface);
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}
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WaylandDMABUFTextureData::~WaylandDMABUFTextureData() = default;
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/* static */ WaylandDMABUFTextureData* WaylandDMABUFTextureData::Create(
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const IntSize& aSize, SurfaceFormat aFormat, BackendType aBackend) {
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if (aFormat != SurfaceFormat::B8G8R8A8 &&
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aFormat != SurfaceFormat::B8G8R8X8) {
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// TODO
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NS_WARNING("WaylandDMABUFTextureData::Create() - wrong surface format!");
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return nullptr;
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}
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int flags = DMABUF_TEXTURE;
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if (aFormat == SurfaceFormat::B8G8R8A8) {
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flags |= DMABUF_ALPHA;
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}
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RefPtr<WaylandDMABufSurface> surf =
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WaylandDMABufSurfaceRGBA::CreateDMABufSurface(aSize.width, aSize.height,
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flags);
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return new WaylandDMABUFTextureData(surf, aBackend);
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}
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TextureData* WaylandDMABUFTextureData::CreateSimilar(
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LayersIPCChannel* aAllocator, LayersBackend aLayersBackend,
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TextureFlags aFlags, TextureAllocationFlags aAllocFlags) const {
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return WaylandDMABUFTextureData::Create(
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gfx::IntSize(mSurface->GetWidth(), mSurface->GetHeight()),
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mSurface->GetFormat(), mBackend);
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}
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bool WaylandDMABUFTextureData::Serialize(SurfaceDescriptor& aOutDescriptor) {
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mSurface->Serialize(aOutDescriptor);
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return true;
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}
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void WaylandDMABUFTextureData::FillInfo(TextureData::Info& aInfo) const {
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aInfo.size = gfx::IntSize(mSurface->GetWidth(), mSurface->GetHeight());
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aInfo.format = mSurface->GetFormat();
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aInfo.hasIntermediateBuffer = false;
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aInfo.hasSynchronization = false;
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aInfo.supportsMoz2D = true;
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aInfo.canExposeMappedData = false;
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}
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bool WaylandDMABUFTextureData::Lock(OpenMode) {
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auto surf = mSurface->GetAsWaylandDMABufSurfaceRGBA();
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MOZ_ASSERT(!surf->IsMapped(), "Already locked?");
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surf->Map();
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return true;
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}
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void WaylandDMABUFTextureData::Unlock() {
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auto surf = mSurface->GetAsWaylandDMABufSurfaceRGBA();
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MOZ_ASSERT(surf->IsMapped(), "Already unlocked?");
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surf->Unmap();
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}
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already_AddRefed<DataSourceSurface> WaylandDMABUFTextureData::GetAsSurface() {
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// TODO: Update for debug purposes.
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return nullptr;
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}
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already_AddRefed<DrawTarget> WaylandDMABUFTextureData::BorrowDrawTarget() {
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MOZ_ASSERT(mBackend != BackendType::NONE);
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if (mBackend == BackendType::NONE) {
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// shouldn't happen, but degrade gracefully
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return nullptr;
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}
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auto surf = mSurface->GetAsWaylandDMABufSurfaceRGBA();
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return Factory::CreateDrawTargetForData(
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mBackend, (unsigned char*)surf->GetMappedRegion(),
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IntSize(surf->GetWidth(), surf->GetHeight()),
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surf->GetMappedRegionStride(), surf->GetFormat(), true);
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}
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void WaylandDMABUFTextureData::Deallocate(LayersIPCChannel*) {
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mSurface = nullptr;
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}
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void WaylandDMABUFTextureData::Forget(LayersIPCChannel*) { mSurface = nullptr; }
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bool WaylandDMABUFTextureData::UpdateFromSurface(gfx::SourceSurface* aSurface) {
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RefPtr<DrawTarget> dt = BorrowDrawTarget();
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if (!dt) {
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return false;
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}
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dt->CopySurface(aSurface, IntRect(IntPoint(), aSurface->GetSize()),
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IntPoint());
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return true;
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}
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} // namespace mozilla::layers
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