bool
ISurfaceAllocator::AllocSurfaceDescriptorWithCaps(const gfxIntSize& aSize,
gfxASurface::gfxContentType aContent,
uint32_t aCaps,
SurfaceDescriptor* aBuffer)
{
bool tryPlatformSurface = true;
#ifdef DEBUG
tryPlatformSurface = !PR_GetEnv("MOZ_LAYERS_FORCE_SHMEM_SURFACES");
#endif
if (tryPlatformSurface &&
PlatformAllocSurfaceDescriptor(aSize, aContent, aCaps, aBuffer)) {
return true;
}
if (XRE_GetProcessType() == GoannaProcessType_Default) {
gfxImageFormat format =
gfxPlatform::GetPlatform()->OptimalFormatForContent(aContent);
int32_t stride = gfxASurface::FormatStrideForWidth(format, aSize.width);
uint8_t *data = new uint8_t[stride * aSize.height];
memset(data, 0, stride * aSize.height);
*aBuffer = MemoryImage((uintptr_t)data, aSize, stride, format);
return true;
}
nsRefPtr<gfxSharedImageSurface> buffer;
if (!AllocSharedImageSurface(aSize, aContent,
getter_AddRefs(buffer))) {
return false;
}
*aBuffer = buffer->GetShmem();
return true;
}
bool
ISurfaceAllocator::AllocSurfaceDescriptorWithCaps(const gfxIntSize& aSize,
gfxASurface::gfxContentType aContent,
uint32_t aCaps,
SurfaceDescriptor* aBuffer)
{
bool tryPlatformSurface = true;
#ifdef DEBUG
tryPlatformSurface = !PR_GetEnv("MOZ_LAYERS_FORCE_SHMEM_SURFACES");
#endif
if (tryPlatformSurface &&
PlatformAllocSurfaceDescriptor(aSize, aContent, aCaps, aBuffer)) {
return true;
}
if (XRE_GetProcessType() == GeckoProcessType_Default) {
gfxImageFormat format =
gfxPlatform::GetPlatform()->OptimalFormatForContent(aContent);
int32_t stride = gfxASurface::FormatStrideForWidth(format, aSize.width);
uint8_t *data = new (std::nothrow) uint8_t[stride * aSize.height];
if (!data) {
return false;
}
#ifdef XP_MACOSX
// Workaround a bug in Quartz where drawing an a8 surface to another a8
// surface with OPERATOR_SOURCE still requires the destination to be clear.
if (format == gfxASurface::ImageFormatA8) {
memset(data, 0, stride * aSize.height);
}
#endif
*aBuffer = MemoryImage((uintptr_t)data, aSize, stride, format);
return true;
}
nsRefPtr<gfxSharedImageSurface> buffer;
if (!AllocSharedImageSurface(aSize, aContent,
getter_AddRefs(buffer))) {
return false;
}
*aBuffer = buffer->GetShmem();
return true;
}
bool
ISurfaceAllocator::AllocSurfaceDescriptorWithCaps(const gfxIntSize& aSize,
gfxASurface::gfxContentType aContent,
uint32_t aCaps,
SurfaceDescriptor* aBuffer)
{
bool tryPlatformSurface = true;
#ifdef DEBUG
tryPlatformSurface = !PR_GetEnv("MOZ_LAYERS_FORCE_SHMEM_SURFACES");
#endif
if (tryPlatformSurface &&
PlatformAllocSurfaceDescriptor(aSize, aContent, aCaps, aBuffer)) {
return true;
}
nsRefPtr<gfxSharedImageSurface> buffer;
if (!AllocSharedImageSurface(aSize, aContent,
getter_AddRefs(buffer))) {
return false;
}
*aBuffer = buffer->GetShmem();
return true;
}