1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/layers/ipc/SharedRGBImage.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,123 @@
1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.7 +
1.8 +#include "SharedRGBImage.h"
1.9 +#include "ImageTypes.h" // for ImageFormat::SHARED_RGB, etc
1.10 +#include "Shmem.h" // for Shmem
1.11 +#include "gfx2DGlue.h" // for ImageFormatToSurfaceFormat, etc
1.12 +#include "gfxPlatform.h" // for gfxPlatform, gfxImageFormat
1.13 +#include "mozilla/layers/ISurfaceAllocator.h" // for ISurfaceAllocator, etc
1.14 +#include "mozilla/layers/ImageClient.h" // for ImageClient
1.15 +#include "mozilla/layers/ImageDataSerializer.h" // for ImageDataSerializer
1.16 +#include "mozilla/layers/LayersSurfaces.h" // for SurfaceDescriptor, etc
1.17 +#include "mozilla/layers/TextureClient.h" // for BufferTextureClient, etc
1.18 +#include "mozilla/layers/ImageBridgeChild.h" // for ImageBridgeChild
1.19 +#include "mozilla/mozalloc.h" // for operator delete, etc
1.20 +#include "nsAutoPtr.h" // for nsRefPtr
1.21 +#include "nsDebug.h" // for NS_WARNING, NS_ASSERTION
1.22 +#include "nsISupportsImpl.h" // for Image::AddRef, etc
1.23 +#include "nsRect.h" // for nsIntRect
1.24 +#include "nsSize.h" // for nsIntSize
1.25 +
1.26 +// Just big enough for a 1080p RGBA32 frame
1.27 +#define MAX_FRAME_SIZE (16 * 1024 * 1024)
1.28 +
1.29 +namespace mozilla {
1.30 +namespace layers {
1.31 +
1.32 +already_AddRefed<Image>
1.33 +CreateSharedRGBImage(ImageContainer *aImageContainer,
1.34 + nsIntSize aSize,
1.35 + gfxImageFormat aImageFormat)
1.36 +{
1.37 + NS_ASSERTION(aImageFormat == gfxImageFormat::ARGB32 ||
1.38 + aImageFormat == gfxImageFormat::RGB24 ||
1.39 + aImageFormat == gfxImageFormat::RGB16_565,
1.40 + "RGB formats supported only");
1.41 +
1.42 + if (!aImageContainer) {
1.43 + NS_WARNING("No ImageContainer to allocate SharedRGBImage");
1.44 + return nullptr;
1.45 + }
1.46 +
1.47 + nsRefPtr<Image> image = aImageContainer->CreateImage(ImageFormat::SHARED_RGB);
1.48 +
1.49 + if (!image) {
1.50 + NS_WARNING("Failed to create SharedRGBImage");
1.51 + return nullptr;
1.52 + }
1.53 +
1.54 + nsRefPtr<SharedRGBImage> rgbImage = static_cast<SharedRGBImage*>(image.get());
1.55 + if (!rgbImage->Allocate(gfx::ToIntSize(aSize),
1.56 + gfx::ImageFormatToSurfaceFormat(aImageFormat))) {
1.57 + NS_WARNING("Failed to allocate a shared image");
1.58 + return nullptr;
1.59 + }
1.60 + return image.forget();
1.61 +}
1.62 +
1.63 +SharedRGBImage::SharedRGBImage(ImageClient* aCompositable)
1.64 +: Image(nullptr, ImageFormat::SHARED_RGB)
1.65 +, mCompositable(aCompositable)
1.66 +{
1.67 + MOZ_COUNT_CTOR(SharedRGBImage);
1.68 +}
1.69 +
1.70 +SharedRGBImage::~SharedRGBImage()
1.71 +{
1.72 + MOZ_COUNT_DTOR(SharedRGBImage);
1.73 +
1.74 + if (mCompositable->GetAsyncID() != 0 &&
1.75 + !InImageBridgeChildThread()) {
1.76 + ImageBridgeChild::DispatchReleaseTextureClient(mTextureClient.forget().drop());
1.77 + ImageBridgeChild::DispatchReleaseImageClient(mCompositable.forget().drop());
1.78 + }
1.79 +}
1.80 +
1.81 +bool
1.82 +SharedRGBImage::Allocate(gfx::IntSize aSize, gfx::SurfaceFormat aFormat)
1.83 +{
1.84 + mSize = aSize;
1.85 + mTextureClient = mCompositable->CreateBufferTextureClient(aFormat);
1.86 + return mTextureClient->AllocateForSurface(aSize);
1.87 +}
1.88 +
1.89 +uint8_t*
1.90 +SharedRGBImage::GetBuffer()
1.91 +{
1.92 + if (!mTextureClient) {
1.93 + return nullptr;
1.94 + }
1.95 +
1.96 + ImageDataSerializer serializer(mTextureClient->GetBuffer(), mTextureClient->GetBufferSize());
1.97 + return serializer.GetData();
1.98 +}
1.99 +
1.100 +gfx::IntSize
1.101 +SharedRGBImage::GetSize()
1.102 +{
1.103 + return mSize;
1.104 +}
1.105 +
1.106 +size_t
1.107 +SharedRGBImage::GetBufferSize()
1.108 +{
1.109 + return mTextureClient ? mTextureClient->GetBufferSize()
1.110 + : 0;
1.111 +}
1.112 +
1.113 +TextureClient*
1.114 +SharedRGBImage::GetTextureClient(CompositableClient* aClient)
1.115 +{
1.116 + return mTextureClient.get();
1.117 +}
1.118 +
1.119 +TemporaryRef<gfx::SourceSurface>
1.120 +SharedRGBImage::GetAsSourceSurface()
1.121 +{
1.122 + return nullptr;
1.123 +}
1.124 +
1.125 +} // namespace layers
1.126 +} // namespace mozilla
