void
CanvasLayerOGL::Initialize(const Data& aData)
{
NS_ASSERTION(mCanvasSurface == nullptr, "BasicCanvasLayer::Initialize called twice!");
if (aData.mGLContext != nullptr &&
aData.mSurface != nullptr)
{
NS_WARNING("CanvasLayerOGL can't have both surface and WebGLContext");
return;
}
mOGLManager->MakeCurrent();
if (aData.mDrawTarget &&
aData.mDrawTarget->GetNativeSurface(gfx::NATIVE_SURFACE_CGCONTEXT_ACCELERATED)) {
mDrawTarget = aData.mDrawTarget;
mNeedsYFlip = false;
mBounds.SetRect(0, 0, aData.mSize.width, aData.mSize.height);
return;
} else if (aData.mDrawTarget) {
mDrawTarget = aData.mDrawTarget;
mCanvasSurface = gfxPlatform::GetPlatform()->CreateThebesSurfaceAliasForDrawTarget_hack(mDrawTarget);
mNeedsYFlip = false;
} else if (aData.mSurface) {
mCanvasSurface = aData.mSurface;
mNeedsYFlip = false;
#if defined(GL_PROVIDER_GLX)
if (aData.mSurface->GetType() == gfxASurface::SurfaceTypeXlib) {
gfxXlibSurface *xsurf = static_cast<gfxXlibSurface*>(aData.mSurface);
mPixmap = xsurf->GetGLXPixmap();
if (mPixmap) {
mLayerProgram = ShaderProgramFromContentType(aData.mSurface->GetContentType());
MakeTextureIfNeeded(gl(), mUploadTexture);
}
}
#endif
} else if (aData.mGLContext) {
mGLContext = aData.mGLContext;
NS_ASSERTION(mGLContext->IsOffscreen(), "Canvas GLContext must be offscreen.");
mIsGLAlphaPremult = aData.mIsGLAlphaPremult;
mNeedsYFlip = true;
// [OGL Layers, MTC] WebGL layer init.
GLScreenBuffer* screen = mGLContext->Screen();
SurfaceStreamType streamType =
SurfaceStream::ChooseGLStreamType(SurfaceStream::MainThread,
screen->PreserveBuffer());
SurfaceFactory_GL* factory = nullptr;
if (!mForceReadback) {
factory = new SurfaceFactory_GLTexture(mGLContext, gl(), screen->Caps());
}
if (factory) {
screen->Morph(factory, streamType);
}
} else {
NS_WARNING("CanvasLayerOGL::Initialize called without surface or GL context!");
return;
}
mBounds.SetRect(0, 0, aData.mSize.width, aData.mSize.height);
// Check the maximum texture size supported by GL. glTexImage2D supports
// images of up to 2 + GL_MAX_TEXTURE_SIZE
GLint texSize = 0;
gl()->fGetIntegerv(LOCAL_GL_MAX_TEXTURE_SIZE, &texSize);
MOZ_ASSERT(texSize != 0);
if (mBounds.width > (2 + texSize) || mBounds.height > (2 + texSize)) {
mDelayedUpdates = true;
MakeTextureIfNeeded(gl(), mUploadTexture);
// This should only ever occur with 2d canvas, WebGL can't already have a texture
// of this size can it?
NS_ABORT_IF_FALSE(mCanvasSurface || mDrawTarget,
"Invalid texture size when WebGL surface already exists at that size?");
}
}
void
ClientCanvasLayer::Initialize(const Data& aData)
{
CopyableCanvasLayer::Initialize(aData);
mCanvasClient = nullptr;
if (mGLContext) {
GLScreenBuffer* screen = mGLContext->Screen();
SurfaceCaps caps;
if (mStream) {
// The screen caps are irrelevant if we're using a separate stream
caps = aData.mHasAlpha ? SurfaceCaps::ForRGBA() : SurfaceCaps::ForRGB();
} else {
caps = screen->mCaps;
}
MOZ_ASSERT(caps.alpha == aData.mHasAlpha);
SurfaceStreamType streamType =
SurfaceStream::ChooseGLStreamType(SurfaceStream::OffMainThread,
screen->PreserveBuffer());
UniquePtr<SurfaceFactory> factory;
if (!gfxPrefs::WebGLForceLayersReadback()) {
switch (ClientManager()->AsShadowForwarder()->GetCompositorBackendType()) {
case mozilla::layers::LayersBackend::LAYERS_OPENGL: {
if (mGLContext->GetContextType() == GLContextType::EGL) {
#ifdef MOZ_WIDGET_GONK
factory = MakeUnique<SurfaceFactory_Gralloc>(mGLContext,
caps,
ClientManager()->AsShadowForwarder());
#else
bool isCrossProcess = !(XRE_GetProcessType() == GeckoProcessType_Default);
if (!isCrossProcess) {
// [Basic/OGL Layers, OMTC] WebGL layer init.
factory = SurfaceFactory_EGLImage::Create(mGLContext, caps);
} else {
// we could do readback here maybe
NS_NOTREACHED("isCrossProcess but not on native B2G!");
}
#endif
} else {
// [Basic Layers, OMTC] WebGL layer init.
// Well, this *should* work...
#ifdef XP_MACOSX
factory = SurfaceFactory_IOSurface::Create(mGLContext, caps);
#else
GLContext* nullConsGL = nullptr; // Bug 1050044.
factory = MakeUnique<SurfaceFactory_GLTexture>(mGLContext, nullConsGL, caps);
#endif
}
break;
}
case mozilla::layers::LayersBackend::LAYERS_D3D10:
case mozilla::layers::LayersBackend::LAYERS_D3D11: {
#ifdef XP_WIN
if (mGLContext->IsANGLE()) {
factory = SurfaceFactory_ANGLEShareHandle::Create(mGLContext, caps);
}
#endif
break;
}
default:
break;
}
}
if (mStream) {
// We're using a stream other than the one in the default screen
mFactory = Move(factory);
if (!mFactory) {
// Absolutely must have a factory here, so create a basic one
mFactory = MakeUnique<SurfaceFactory_Basic>(mGLContext, caps);
}
gfx::IntSize size = gfx::IntSize(aData.mSize.width, aData.mSize.height);
mTextureSurface = SharedSurface_GLTexture::Create(mGLContext, mGLContext,
mGLContext->GetGLFormats(),
size, caps.alpha, aData.mTexID);
SharedSurface* producer = mStream->SwapProducer(mFactory.get(), size);
if (!producer) {
// Fallback to basic factory
mFactory = MakeUnique<SurfaceFactory_Basic>(mGLContext, caps);
producer = mStream->SwapProducer(mFactory.get(), size);
MOZ_ASSERT(producer, "Failed to create initial canvas surface with basic factory");
}
} else if (factory) {
screen->Morph(Move(factory), streamType);
}
}
}
void
CanvasLayerD3D10::Initialize(const Data& aData)
{
NS_ASSERTION(mSurface == nullptr, "BasicCanvasLayer::Initialize called twice!");
if (aData.mGLContext) {
mGLContext = aData.mGLContext;
NS_ASSERTION(mGLContext->IsOffscreen(), "Canvas GLContext must be offscreen.");
mDataIsPremultiplied = aData.mIsGLAlphaPremult;
mNeedsYFlip = true;
GLScreenBuffer* screen = mGLContext->Screen();
SurfaceStreamType streamType =
SurfaceStream::ChooseGLStreamType(SurfaceStream::MainThread,
screen->PreserveBuffer());
SurfaceFactory_GL* factory = nullptr;
if (!gfxPrefs::WebGLForceLayersReadback()) {
if (mGLContext->IsANGLE()) {
factory = SurfaceFactory_ANGLEShareHandle::Create(mGLContext,
device(),
screen->Caps());
}
}
if (factory) {
screen->Morph(factory, streamType);
}
} else if (aData.mDrawTarget) {
mDrawTarget = aData.mDrawTarget;
mNeedsYFlip = false;
mDataIsPremultiplied = true;
void *texture = mDrawTarget->GetNativeSurface(NativeSurfaceType::D3D10_TEXTURE);
if (texture) {
mTexture = static_cast<ID3D10Texture2D*>(texture);
NS_ASSERTION(!aData.mGLContext,
"CanvasLayer can't have both DrawTarget and WebGLContext/Surface");
mBounds.SetRect(0, 0, aData.mSize.width, aData.mSize.height);
device()->CreateShaderResourceView(mTexture, nullptr, getter_AddRefs(mSRView));
return;
}
// XXX we should store mDrawTarget and use it directly in UpdateSurface,
// bypassing Thebes
mSurface = mDrawTarget->Snapshot();
} else {
NS_ERROR("CanvasLayer created without mSurface, mDrawTarget or mGLContext?");
}
mBounds.SetRect(0, 0, aData.mSize.width, aData.mSize.height);
mIsD2DTexture = false;
// Create a texture in case we need to readback.
CD3D10_TEXTURE2D_DESC desc(DXGI_FORMAT_B8G8R8A8_UNORM, mBounds.width, mBounds.height, 1, 1);
desc.Usage = D3D10_USAGE_DYNAMIC;
desc.CPUAccessFlags = D3D10_CPU_ACCESS_WRITE;
HRESULT hr = device()->CreateTexture2D(&desc, nullptr, getter_AddRefs(mTexture));
if (FAILED(hr)) {
NS_WARNING("Failed to create texture for CanvasLayer!");
return;
}
device()->CreateShaderResourceView(mTexture, nullptr, getter_AddRefs(mUploadSRView));
}
void
ClientCanvasLayer::Initialize(const Data& aData)
{
CopyableCanvasLayer::Initialize(aData);
mCanvasClient = nullptr;
if (mGLContext) {
GLScreenBuffer* screen = mGLContext->Screen();
SurfaceCaps caps = screen->Caps();
if (mStream) {
// The screen caps are irrelevant if we're using a separate stream
caps = GetContentFlags() & CONTENT_OPAQUE ? SurfaceCaps::ForRGB() : SurfaceCaps::ForRGBA();
}
SurfaceStreamType streamType =
SurfaceStream::ChooseGLStreamType(SurfaceStream::OffMainThread,
screen->PreserveBuffer());
SurfaceFactory_GL* factory = nullptr;
if (!gfxPrefs::WebGLForceLayersReadback()) {
if (ClientManager()->AsShadowForwarder()->GetCompositorBackendType() == mozilla::layers::LayersBackend::LAYERS_OPENGL) {
if (mGLContext->GetContextType() == GLContextType::EGL) {
bool isCrossProcess = !(XRE_GetProcessType() == GeckoProcessType_Default);
if (!isCrossProcess) {
// [Basic/OGL Layers, OMTC] WebGL layer init.
factory = SurfaceFactory_EGLImage::Create(mGLContext, caps);
} else {
// [Basic/OGL Layers, OOPC] WebGL layer init. (Out Of Process Compositing)
#ifdef MOZ_WIDGET_GONK
factory = new SurfaceFactory_Gralloc(mGLContext, caps, ClientManager()->AsShadowForwarder());
#else
// we could do readback here maybe
NS_NOTREACHED("isCrossProcess but not on native B2G!");
#endif
}
} else {
// [Basic Layers, OMTC] WebGL layer init.
// Well, this *should* work...
#ifdef XP_MACOSX
factory = new SurfaceFactory_IOSurface(mGLContext, caps);
#else
factory = new SurfaceFactory_GLTexture(mGLContext, nullptr, caps);
#endif
}
}
}
if (mStream) {
// We're using a stream other than the one in the default screen
mFactory = factory;
if (!mFactory) {
// Absolutely must have a factory here, so create a basic one
mFactory = new SurfaceFactory_Basic(mGLContext, caps);
}
gfx::IntSize size = gfx::IntSize(aData.mSize.width, aData.mSize.height);
mTextureSurface = SharedSurface_GLTexture::Create(mGLContext, mGLContext,
mGLContext->GetGLFormats(),
size, caps.alpha, aData.mTexID);
SharedSurface* producer = mStream->SwapProducer(mFactory, size);
if (!producer) {
// Fallback to basic factory
delete mFactory;
mFactory = new SurfaceFactory_Basic(mGLContext, caps);
producer = mStream->SwapProducer(mFactory, size);
MOZ_ASSERT(producer, "Failed to create initial canvas surface with basic factory");
}
} else if (factory) {
screen->Morph(factory, streamType);
}
}
}