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
#include "CanvasClient.h"
#include "gfx2DGlue.h" // for ImageFormatToSurfaceFormat
#include "gfxPlatform.h" // for gfxPlatform
#include "mozilla/gfx/BaseSize.h" // for BaseSize
#include "mozilla/gfx/gfxVars.h"
#include "mozilla/layers/BufferTexture.h"
#include "mozilla/layers/CompositableForwarder.h"
#include "mozilla/layers/CompositorBridgeChild.h" // for CompositorBridgeChild
#include "mozilla/layers/LayersTypes.h"
#include "mozilla/layers/OOPCanvasRenderer.h"
#include "mozilla/layers/TextureClient.h" // for TextureClient, etc
#include "mozilla/layers/TextureClientOGL.h"
#include "mozilla/layers/TextureClientRecycleAllocator.h"
#include "nsDebug.h" // for printf_stderr, NS_ASSERTION
#include "nsXULAppAPI.h" // for XRE_GetProcessType, etc
using namespace mozilla::gfx;
using namespace mozilla::gl;
namespace mozilla {
namespace layers {
void CanvasClient::UseTexture(TextureClient* const aTexture) {
MOZ_ASSERT(aTexture);
const auto isClientNonPremult =
bool(mTextureFlags & TextureFlags::NON_PREMULTIPLIED);
const auto isTextureNonPremult =
bool(aTexture->GetFlags() & TextureFlags::NON_PREMULTIPLIED);
MOZ_ALWAYS_TRUE(isTextureNonPremult == isClientNonPremult);
bool changed = false;
if (aTexture != mFrontBuffer) {
if (!aTexture->IsSharedWithCompositor()) {
if (!AddTextureClient(aTexture)) {
return;
}
}
changed = true;
mFrontBuffer = aTexture;
}
AutoTArray<CompositableForwarder::TimedTextureClient, 1> textures;
CompositableForwarder::TimedTextureClient* t = textures.AppendElement();
t->mTextureClient = aTexture;
t->mPictureRect = nsIntRect(nsIntPoint(0, 0), aTexture->GetSize());
t->mFrameID = mFrameID;
GetForwarder()->UseTextures(this, textures);
if (changed) {
aTexture->SyncWithObject(GetForwarder()->GetSyncObject());
}
}
static constexpr bool kIsWindows =
#ifdef XP_WIN
true;
#else
false;
#endif
RefPtr<TextureClient> CanvasClient::CreateTextureClientForCanvas(
const gfx::SurfaceFormat aFormat, const gfx::IntSize aSize,
const TextureFlags aFlags) {
if (kIsWindows) {
// With WebRender, host side uses data of TextureClient longer.
// Then back buffer reuse in CanvasClient2D::Update() does not work. It
// causes a lot of TextureClient allocations. For reducing the allocations,
// TextureClientRecycler is used.
if (GetForwarder() && GetForwarder()->GetCompositorBackendType() ==
LayersBackend::LAYERS_WR) {
return GetTextureClientRecycler()->CreateOrRecycle(
aFormat, aSize, BackendSelector::Canvas, mTextureFlags | aFlags);
}
return CreateTextureClientForDrawing(
aFormat, aSize, BackendSelector::Canvas, mTextureFlags | aFlags);
}
// XXX - We should use CreateTextureClientForDrawing, but we first need
// to use double buffering.
gfx::BackendType backend =
gfxPlatform::GetPlatform()->GetPreferredCanvasBackend();
return TextureClient::CreateForRawBufferAccess(
GetForwarder(), aFormat, aSize, backend, mTextureFlags | aFlags);
}
} // namespace layers
} // namespace mozilla