mirror of
https://github.com/mozilla/gecko-dev.git
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141 lines
4.4 KiB
C++
141 lines
4.4 KiB
C++
/* -*- Mode: C++; tab-width: 20; 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 "mozilla/layers/CanvasClient.h"
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#include "mozilla/layers/TextureClient.h"
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#include "ClientCanvasLayer.h"
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#include "mozilla/layers/ShadowLayers.h"
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#include "SharedTextureImage.h"
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#include "nsXULAppAPI.h"
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#include "GLContext.h"
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#include "SurfaceStream.h"
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#include "SharedSurface.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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using namespace mozilla::gl;
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namespace mozilla {
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namespace layers {
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/* static */ TemporaryRef<CanvasClient>
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CanvasClient::CreateCanvasClient(CompositableType aCompositableHostType,
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CompositableForwarder* aForwarder,
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TextureFlags aFlags)
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{
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if (aCompositableHostType == BUFFER_IMAGE_SINGLE) {
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return new CanvasClient2D(aForwarder, aFlags);
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}
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if (aCompositableHostType == BUFFER_IMAGE_BUFFERED) {
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if (aForwarder->GetCompositorBackendType() == LAYERS_OPENGL) {
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return new CanvasClientWebGL(aForwarder, aFlags);
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}
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return new CanvasClient2D(aForwarder, aFlags);
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}
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return nullptr;
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}
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void
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CanvasClient::Updated()
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{
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mForwarder->UpdateTexture(this, 1, mDeprecatedTextureClient->GetDescriptor());
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}
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CanvasClient2D::CanvasClient2D(CompositableForwarder* aFwd,
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TextureFlags aFlags)
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: CanvasClient(aFwd, aFlags)
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{
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mTextureInfo.mCompositableType = BUFFER_IMAGE_SINGLE;
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}
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void
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CanvasClient2D::Update(gfx::IntSize aSize, ClientCanvasLayer* aLayer)
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{
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if (!mDeprecatedTextureClient) {
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mDeprecatedTextureClient = CreateDeprecatedTextureClient(TEXTURE_CONTENT);
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MOZ_ASSERT(mDeprecatedTextureClient, "Failed to create texture client");
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}
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bool isOpaque = (aLayer->GetContentFlags() & Layer::CONTENT_OPAQUE);
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gfxASurface::gfxContentType contentType = isOpaque
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? gfxASurface::CONTENT_COLOR
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: gfxASurface::CONTENT_COLOR_ALPHA;
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mDeprecatedTextureClient->EnsureAllocated(aSize, contentType);
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gfxASurface* surface = mDeprecatedTextureClient->LockSurface();
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aLayer->UpdateSurface(surface);
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mDeprecatedTextureClient->Unlock();
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}
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void
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CanvasClientWebGL::Updated()
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{
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mForwarder->UpdateTextureNoSwap(this, 1, mDeprecatedTextureClient->GetDescriptor());
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}
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CanvasClientWebGL::CanvasClientWebGL(CompositableForwarder* aFwd,
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TextureFlags aFlags)
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: CanvasClient(aFwd, aFlags)
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{
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mTextureInfo.mCompositableType = BUFFER_IMAGE_BUFFERED;
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}
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void
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CanvasClientWebGL::Update(gfx::IntSize aSize, ClientCanvasLayer* aLayer)
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{
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if (!mDeprecatedTextureClient) {
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mDeprecatedTextureClient = CreateDeprecatedTextureClient(TEXTURE_STREAM_GL);
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MOZ_ASSERT(mDeprecatedTextureClient, "Failed to create texture client");
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}
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NS_ASSERTION(aLayer->mGLContext, "CanvasClientWebGL should only be used with GL canvases");
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// the content type won't be used
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mDeprecatedTextureClient->EnsureAllocated(aSize, gfxASurface::CONTENT_COLOR);
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GLScreenBuffer* screen = aLayer->mGLContext->Screen();
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SurfaceStream* stream = screen->Stream();
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bool isCrossProcess = !(XRE_GetProcessType() == GeckoProcessType_Default);
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if (isCrossProcess) {
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// swap staging -> consumer so we can send it to the compositor
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SharedSurface* surf = stream->SwapConsumer();
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if (!surf) {
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printf_stderr("surf is null post-SwapConsumer!\n");
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return;
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}
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#ifdef MOZ_WIDGET_GONK
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if (surf->Type() != SharedSurfaceType::Gralloc) {
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printf_stderr("Unexpected non-Gralloc SharedSurface in IPC path!");
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return;
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}
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SharedSurface_Gralloc* grallocSurf = SharedSurface_Gralloc::Cast(surf);
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mDeprecatedTextureClient->SetDescriptor(grallocSurf->GetDescriptor());
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#else
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printf_stderr("isCrossProcess, but not MOZ_WIDGET_GONK! Someone needs to write some code!");
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MOZ_ASSERT(false);
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#endif
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} else {
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SurfaceStreamHandle handle = stream->GetShareHandle();
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mDeprecatedTextureClient->SetDescriptor(SurfaceStreamDescriptor(handle, false));
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// Bug 894405
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//
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// Ref this so the SurfaceStream doesn't disappear unexpectedly. The
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// Compositor will need to unref it when finished.
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aLayer->mGLContext->AddRef();
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}
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aLayer->Painted();
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}
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}
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}
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