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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* 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 "MacIOSurfaceTextureClientOGL.h"
#include "mozilla/gfx/MacIOSurface.h"
#include "MacIOSurfaceHelpers.h"
#include "gfxPlatform.h"
namespace mozilla {
namespace layers {
using namespace gfx;
MacIOSurfaceTextureData::MacIOSurfaceTextureData(MacIOSurface* aSurface,
BackendType aBackend)
: mSurface(aSurface)
, mBackend(aBackend)
{
MOZ_ASSERT(mSurface);
}
MacIOSurfaceTextureData::~MacIOSurfaceTextureData()
{}
// static
MacIOSurfaceTextureData*
MacIOSurfaceTextureData::Create(MacIOSurface* aSurface, BackendType aBackend)
{
MOZ_ASSERT(aSurface);
if (!aSurface) {
return nullptr;
}
return new MacIOSurfaceTextureData(aSurface, aBackend);
}
MacIOSurfaceTextureData*
MacIOSurfaceTextureData::Create(const IntSize& aSize,
SurfaceFormat aFormat,
BackendType aBackend)
{
if (aFormat != SurfaceFormat::B8G8R8A8 &&
aFormat != SurfaceFormat::B8G8R8X8) {
return nullptr;
}
RefPtr<MacIOSurface> surf = MacIOSurface::CreateIOSurface(aSize.width, aSize.height,
1.0,
aFormat == SurfaceFormat::B8G8R8A8);
if (!surf) {
return nullptr;
}
return Create(surf, aBackend);
}
bool
MacIOSurfaceTextureData::Serialize(SurfaceDescriptor& aOutDescriptor)
{
aOutDescriptor = SurfaceDescriptorMacIOSurface(mSurface->GetIOSurfaceID(),
mSurface->GetContentsScaleFactor(),
!mSurface->HasAlpha());
return true;
}
void
MacIOSurfaceTextureData::FillInfo(TextureData::Info& aInfo) const
{
aInfo.size = gfx::IntSize(mSurface->GetDevicePixelWidth(), mSurface->GetDevicePixelHeight());
aInfo.format = mSurface->HasAlpha() ? SurfaceFormat::B8G8R8A8 : SurfaceFormat::B8G8R8X8;
aInfo.hasIntermediateBuffer = false;
aInfo.hasSynchronization = false;
aInfo.supportsMoz2D = true;
aInfo.canExposeMappedData = false;
}
bool
MacIOSurfaceTextureData::Lock(OpenMode)
{
mSurface->Lock(false);
return true;
}
void
MacIOSurfaceTextureData::Unlock()
{
mSurface->Unlock(false);
}
already_AddRefed<DataSourceSurface>
MacIOSurfaceTextureData::GetAsSurface()
{
RefPtr<SourceSurface> surf = CreateSourceSurfaceFromMacIOSurface(mSurface);
return surf->GetDataSurface();
}
already_AddRefed<DrawTarget>
MacIOSurfaceTextureData::BorrowDrawTarget()
{
MOZ_ASSERT(mBackend != BackendType::NONE);
if (mBackend == BackendType::NONE) {
// shouldn't happen, but degrade gracefully
return nullptr;
}
return Factory::CreateDrawTargetForData(
mBackend,
(unsigned char*)mSurface->GetBaseAddress(),
IntSize(mSurface->GetWidth(), mSurface->GetHeight()),
mSurface->GetBytesPerRow(),
mSurface->HasAlpha() ? SurfaceFormat::B8G8R8A8 : SurfaceFormat::B8G8R8X8,
true);
}
void
MacIOSurfaceTextureData::Deallocate(LayersIPCChannel*)
{
mSurface = nullptr;
}
void
MacIOSurfaceTextureData::Forget(LayersIPCChannel*)
{
mSurface = nullptr;
}
bool
MacIOSurfaceTextureData::UpdateFromSurface(gfx::SourceSurface* aSurface)
{
RefPtr<DrawTarget> dt = BorrowDrawTarget();
if (!dt) {
return false;
}
dt->CopySurface(aSurface, IntRect(IntPoint(), aSurface->GetSize()), IntPoint());
return true;
}
} // namespace layers
} // namespace mozilla
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