michael@0: /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
michael@0: //  * This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: #include "mozilla/layers/TextureClientX11.h"
michael@0: #include "mozilla/layers/CompositableClient.h"
michael@0: #include "mozilla/layers/CompositableForwarder.h"
michael@0: #include "mozilla/layers/ISurfaceAllocator.h"
michael@0: #include "mozilla/layers/ShadowLayerUtilsX11.h"
michael@0: #include "mozilla/gfx/2D.h"
michael@0: #include "gfxXlibSurface.h"
michael@0: #include "gfx2DGlue.h"
michael@0: 
michael@0: #include "mozilla/X11Util.h"
michael@0: #include <X11/Xlib.h>
michael@0: 
michael@0: using namespace mozilla;
michael@0: using namespace mozilla::gfx;
michael@0: using namespace mozilla::layers;
michael@0: 
michael@0: TextureClientX11::TextureClientX11(SurfaceFormat aFormat, TextureFlags aFlags)
michael@0:   : TextureClient(aFlags),
michael@0:     mFormat(aFormat),
michael@0:     mLocked(false)
michael@0: {
michael@0:   MOZ_COUNT_CTOR(TextureClientX11);
michael@0: }
michael@0: 
michael@0: TextureClientX11::~TextureClientX11()
michael@0: {
michael@0:   MOZ_COUNT_DTOR(TextureClientX11);
michael@0: }
michael@0: 
michael@0: bool
michael@0: TextureClientX11::IsAllocated() const
michael@0: {
michael@0:   return !!mSurface;
michael@0: }
michael@0: 
michael@0: bool
michael@0: TextureClientX11::Lock(OpenMode aMode)
michael@0: {
michael@0:   MOZ_ASSERT(!mLocked, "The TextureClient is already Locked!");
michael@0:   mLocked = IsValid() && IsAllocated();
michael@0:   return mLocked;
michael@0: }
michael@0: 
michael@0: void
michael@0: TextureClientX11::Unlock()
michael@0: {
michael@0:   MOZ_ASSERT(mLocked, "The TextureClient is already Unlocked!");
michael@0:   mLocked = false;
michael@0: 
michael@0:   if (mSurface) {
michael@0:     FinishX(DefaultXDisplay());
michael@0:   }
michael@0: }
michael@0: 
michael@0: bool
michael@0: TextureClientX11::ToSurfaceDescriptor(SurfaceDescriptor& aOutDescriptor)
michael@0: {
michael@0:   MOZ_ASSERT(IsValid());
michael@0:   if (!mSurface) {
michael@0:     return false;
michael@0:   }
michael@0: 
michael@0:   aOutDescriptor = SurfaceDescriptorX11(mSurface);
michael@0:   return true;
michael@0: }
michael@0: 
michael@0: TextureClientData*
michael@0: TextureClientX11::DropTextureData()
michael@0: {
michael@0:   MOZ_ASSERT(!(mFlags & TEXTURE_DEALLOCATE_CLIENT));
michael@0:   return nullptr;
michael@0: }
michael@0: 
michael@0: bool
michael@0: TextureClientX11::AllocateForSurface(IntSize aSize, TextureAllocationFlags aTextureFlags)
michael@0: {
michael@0:   MOZ_ASSERT(IsValid());
michael@0:   //MOZ_ASSERT(mFormat != gfx::FORMAT_YUV, "This TextureClient cannot use YCbCr data");
michael@0: 
michael@0:   gfxContentType contentType = ContentForFormat(mFormat);
michael@0:   nsRefPtr<gfxASurface> surface = gfxPlatform::GetPlatform()->CreateOffscreenSurface(aSize, contentType);
michael@0:   if (!surface || surface->GetType() != gfxSurfaceType::Xlib) {
michael@0:     NS_ERROR("creating Xlib surface failed!");
michael@0:     return false;
michael@0:   }
michael@0: 
michael@0:   mSize = aSize;
michael@0:   mSurface = static_cast<gfxXlibSurface*>(surface.get());
michael@0: 
michael@0:   // The host is always responsible for freeing the pixmap.
michael@0:   mSurface->ReleasePixmap();
michael@0:   return true;
michael@0: }
michael@0: 
michael@0: TemporaryRef<DrawTarget>
michael@0: TextureClientX11::GetAsDrawTarget()
michael@0: {
michael@0:   MOZ_ASSERT(IsValid());
michael@0:   if (!mSurface) {
michael@0:     return nullptr;
michael@0:   }
michael@0: 
michael@0:   IntSize size = ToIntSize(mSurface->GetSize());
michael@0:   return Factory::CreateDrawTargetForCairoSurface(mSurface->CairoSurface(), size);
michael@0: }