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
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "DMABUFTextureClientOGL.h"
#include "mozilla/widget/DMABufSurface.h"
#include "gfxPlatform.h"
namespace mozilla::layers {
using namespace gfx;
DMABUFTextureData::DMABUFTextureData(DMABufSurface* aSurface,
BackendType aBackend)
: mSurface(aSurface), mBackend(aBackend) {
MOZ_ASSERT(mSurface);
}
DMABUFTextureData::~DMABUFTextureData() = default;
/* static */ DMABUFTextureData* DMABUFTextureData::Create(
const IntSize& aSize, SurfaceFormat aFormat, BackendType aBackend) {
if (aFormat != SurfaceFormat::B8G8R8A8 &&
aFormat != SurfaceFormat::B8G8R8X8) {
// TODO
NS_WARNING("DMABUFTextureData::Create() - wrong surface format!");
return nullptr;
}
int flags = DMABUF_TEXTURE;
if (aFormat == SurfaceFormat::B8G8R8A8) {
flags |= DMABUF_ALPHA;
}
RefPtr<DMABufSurface> surf =
DMABufSurfaceRGBA::CreateDMABufSurface(aSize.width, aSize.height, flags);
if (!surf) {
NS_WARNING("DMABUFTextureData::Create() failed!");
return nullptr;
}
return new DMABUFTextureData(surf, aBackend);
}
TextureData* DMABUFTextureData::CreateSimilar(
LayersIPCChannel* aAllocator, LayersBackend aLayersBackend,
TextureFlags aFlags, TextureAllocationFlags aAllocFlags) const {
return DMABUFTextureData::Create(
gfx::IntSize(mSurface->GetWidth(), mSurface->GetHeight()),
mSurface->GetFormat(), mBackend);
}
bool DMABUFTextureData::Serialize(SurfaceDescriptor& aOutDescriptor) {
return mSurface->Serialize(aOutDescriptor);
}
void DMABUFTextureData::FillInfo(TextureData::Info& aInfo) const {
aInfo.size = gfx::IntSize(mSurface->GetWidth(), mSurface->GetHeight());
aInfo.format = mSurface->GetFormat();
aInfo.hasSynchronization = false;
aInfo.supportsMoz2D = true;
aInfo.canExposeMappedData = false;
}
bool DMABUFTextureData::Lock(OpenMode) {
auto surf = mSurface->GetAsDMABufSurfaceRGBA();
MOZ_ASSERT(!surf->IsMapped(), "Already locked?");
surf->Map();
return true;
}
void DMABUFTextureData::Unlock() {
auto surf = mSurface->GetAsDMABufSurfaceRGBA();
MOZ_ASSERT(surf->IsMapped(), "Already unlocked?");
surf->Unmap();
}
already_AddRefed<DataSourceSurface> DMABUFTextureData::GetAsSurface() {
// TODO: Update for debug purposes.
return nullptr;
}
already_AddRefed<DrawTarget> DMABUFTextureData::BorrowDrawTarget() {
MOZ_ASSERT(mBackend != BackendType::NONE);
if (mBackend == BackendType::NONE) {
// shouldn't happen, but degrade gracefully
return nullptr;
}
auto surf = mSurface->GetAsDMABufSurfaceRGBA();
if (!surf->GetMappedRegion()) {
return nullptr;
}
return Factory::CreateDrawTargetForData(
mBackend, (unsigned char*)surf->GetMappedRegion(),
IntSize(surf->GetWidth(), surf->GetHeight()),
surf->GetMappedRegionStride(), surf->GetFormat(), true);
}
void DMABUFTextureData::Deallocate(LayersIPCChannel*) { mSurface = nullptr; }
void DMABUFTextureData::Forget(LayersIPCChannel*) { mSurface = nullptr; }
bool DMABUFTextureData::UpdateFromSurface(gfx::SourceSurface* aSurface) {
RefPtr<DrawTarget> dt = BorrowDrawTarget();
if (!dt) {
return false;
}
dt->CopySurface(aSurface, IntRect(IntPoint(), aSurface->GetSize()),
IntPoint());
return true;
}
} // namespace mozilla::layers