gecko/gfx/layers/opengl/TextureClientOGL.cpp

98 lines
2.6 KiB
C++

/* -*- 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 "mozilla/layers/TextureClientOGL.h"
#include "GLContext.h" // for GLContext, etc
#include "mozilla/Assertions.h" // for MOZ_ASSERT, etc
#include "mozilla/layers/ISurfaceAllocator.h"
#include "nsSize.h" // for nsIntSize
using namespace mozilla::gl;
namespace mozilla {
namespace layers {
class CompositableForwarder;
SharedTextureClientOGL::SharedTextureClientOGL(TextureFlags aFlags)
: TextureClient(aFlags)
, mHandle(0)
, mInverted(false)
{
MOZ_ASSERT(!(aFlags & (TEXTURE_DEALLOCATE_CLIENT|TEXTURE_DEALLOCATE_HOST)),
"SharedTextureClientOGL doesn't know how to release textures!");
}
SharedTextureClientOGL::~SharedTextureClientOGL()
{
// the data is owned externally.
}
bool
SharedTextureClientOGL::ToSurfaceDescriptor(SurfaceDescriptor& aOutDescriptor)
{
MOZ_ASSERT(IsValid());
if (!IsAllocated()) {
return false;
}
nsIntSize nsSize(mSize.width, mSize.height);
aOutDescriptor = SharedTextureDescriptor(mShareType, mHandle, nsSize, mInverted);
return true;
}
void
SharedTextureClientOGL::InitWith(gl::SharedTextureHandle aHandle,
gfx::IntSize aSize,
gl::SharedTextureShareType aShareType,
bool aInverted)
{
MOZ_ASSERT(IsValid());
MOZ_ASSERT(!IsAllocated());
mHandle = aHandle;
mSize = aSize;
mShareType = aShareType;
mInverted = aInverted;
}
bool
SharedTextureClientOGL::IsAllocated() const
{
return mHandle != 0;
}
DeprecatedTextureClientSharedOGL::DeprecatedTextureClientSharedOGL(CompositableForwarder* aForwarder,
const TextureInfo& aTextureInfo)
: DeprecatedTextureClient(aForwarder, aTextureInfo)
, mGL(nullptr)
{
}
void
DeprecatedTextureClientSharedOGL::ReleaseResources()
{
if (!IsSurfaceDescriptorValid(mDescriptor)) {
return;
}
MOZ_ASSERT(mDescriptor.type() == SurfaceDescriptor::TSharedTextureDescriptor);
mDescriptor = SurfaceDescriptor();
// It's important our handle gets released! SharedDeprecatedTextureHostOGL will take
// care of this for us though.
}
bool
DeprecatedTextureClientSharedOGL::EnsureAllocated(gfx::IntSize aSize,
gfxASurface::gfxContentType aContentType)
{
mSize = aSize;
return true;
}
} // namespace
} // namespace