mirror of
https://github.com/mozilla/gecko-dev.git
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129 lines
3.6 KiB
C++
129 lines
3.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "ClientCanvasLayer.h"
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#include "gfxPlatform.h"
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#include "SurfaceStream.h"
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#include "SharedSurfaceGL.h"
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#include "SharedSurfaceEGL.h"
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#ifdef MOZ_WIDGET_GONK
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#include "SharedSurfaceGralloc.h"
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#endif
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#ifdef XP_MACOSX
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#include "SharedSurfaceIO.h"
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#endif
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using namespace mozilla::gl;
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namespace mozilla {
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namespace layers {
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void
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ClientCanvasLayer::Initialize(const Data& aData)
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{
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CopyableCanvasLayer::Initialize(aData);
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mCanvasClient = nullptr;
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if (mGLContext) {
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GLScreenBuffer* screen = mGLContext->Screen();
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SurfaceStreamType streamType =
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SurfaceStream::ChooseGLStreamType(SurfaceStream::OffMainThread,
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screen->PreserveBuffer());
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SurfaceFactory_GL* factory = nullptr;
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if (!mForceReadback) {
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if (ClientManager()->GetCompositorBackendType() == mozilla::layers::LAYERS_OPENGL) {
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if (mGLContext->GetEGLContext()) {
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bool isCrossProcess = !(XRE_GetProcessType() == GeckoProcessType_Default);
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if (!isCrossProcess) {
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// [Basic/OGL Layers, OMTC] WebGL layer init.
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factory = SurfaceFactory_EGLImage::Create(mGLContext, screen->Caps());
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} else {
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// [Basic/OGL Layers, OOPC] WebGL layer init. (Out Of Process Compositing)
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#ifdef MOZ_WIDGET_GONK
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factory = new SurfaceFactory_Gralloc(mGLContext, screen->Caps(), ClientManager());
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#else
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// we could do readback here maybe
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NS_NOTREACHED("isCrossProcess but not on native B2G!");
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#endif
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}
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} else {
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// [Basic Layers, OMTC] WebGL layer init.
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// Well, this *should* work...
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#ifdef XP_MACOSX
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factory = new SurfaceFactory_IOSurface(mGLContext, screen->Caps());
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#else
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factory = new SurfaceFactory_GLTexture(mGLContext, nullptr, screen->Caps());
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#endif
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}
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}
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}
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if (factory) {
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screen->Morph(factory, streamType);
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}
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}
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}
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void
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ClientCanvasLayer::RenderLayer()
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{
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PROFILER_LABEL("ClientCanvasLayer", "Paint");
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if (!IsDirty()) {
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return;
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}
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if (GetMaskLayer()) {
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ToClientLayer(GetMaskLayer())->RenderLayer();
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}
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if (!mCanvasClient) {
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TextureFlags flags = 0;
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if (mNeedsYFlip) {
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flags |= NeedsYFlip;
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}
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bool isCrossProcess = !(XRE_GetProcessType() == GeckoProcessType_Default);
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//Append OwnByClient flag for streaming buffer under OOPC case
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if (isCrossProcess && mGLContext) {
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GLScreenBuffer* screen = mGLContext->Screen();
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if (screen && screen->Stream()) {
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flags |= OwnByClient;
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}
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}
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mCanvasClient = CanvasClient::CreateCanvasClient(GetCompositableClientType(),
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ClientManager(), flags);
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if (!mCanvasClient) {
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return;
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}
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if (HasShadow()) {
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mCanvasClient->Connect();
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ClientManager()->Attach(mCanvasClient, this);
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}
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}
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FirePreTransactionCallback();
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mCanvasClient->Update(gfx::IntSize(mBounds.width, mBounds.height), this);
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FireDidTransactionCallback();
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ClientManager()->Hold(this);
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mCanvasClient->Updated();
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}
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already_AddRefed<CanvasLayer>
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ClientLayerManager::CreateCanvasLayer()
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{
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NS_ASSERTION(InConstruction(), "Only allowed in construction phase");
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nsRefPtr<ClientCanvasLayer> layer =
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new ClientCanvasLayer(this);
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CREATE_SHADOW(Canvas);
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return layer.forget();
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}
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}
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}
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