mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
126 lines
3.0 KiB
C++
126 lines
3.0 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "ImageContainerChild.h"
|
|
#include "ShadowLayers.h"
|
|
#include "SharedRGBImage.h"
|
|
#include "Shmem.h"
|
|
|
|
// Just big enough for a 1080p RGBA32 frame
|
|
#define MAX_FRAME_SIZE (16 * 1024 * 1024)
|
|
|
|
namespace mozilla {
|
|
namespace layers {
|
|
|
|
SharedRGBImage::SharedRGBImage(ImageContainerChild *aImageContainerChild) :
|
|
Image(nullptr, SHARED_RGB),
|
|
mSize(0, 0),
|
|
mImageContainerChild(aImageContainerChild),
|
|
mAllocated(false),
|
|
mShmem(new ipc::Shmem())
|
|
{
|
|
mImageContainerChild->AddRef();
|
|
}
|
|
|
|
SharedRGBImage::~SharedRGBImage()
|
|
{
|
|
mImageContainerChild->DeallocShmemAsync(*mShmem);
|
|
mImageContainerChild->Release();
|
|
delete mShmem;
|
|
}
|
|
|
|
already_AddRefed<SharedRGBImage>
|
|
SharedRGBImage::Create(ImageContainer *aImageContainer,
|
|
nsIntSize aSize,
|
|
gfxImageFormat aImageFormat)
|
|
{
|
|
NS_ASSERTION(aImageFormat == gfxASurface::ImageFormatARGB32 ||
|
|
aImageFormat == gfxASurface::ImageFormatRGB24 ||
|
|
aImageFormat == gfxASurface::ImageFormatRGB16_565,
|
|
"RGB formats supported only");
|
|
|
|
if (!aImageContainer) {
|
|
NS_WARNING("No ImageContainer to allocate SharedRGBImage");
|
|
return nullptr;
|
|
}
|
|
|
|
ImageFormat format = SHARED_RGB;
|
|
nsRefPtr<Image> image = aImageContainer->CreateImage(&format, 1);
|
|
|
|
if (!image) {
|
|
NS_WARNING("Failed to create SharedRGBImage");
|
|
return nullptr;
|
|
}
|
|
|
|
nsRefPtr<SharedRGBImage> rgbImage = static_cast<SharedRGBImage*>(image.get());
|
|
rgbImage->mSize = gfxIntSize(aSize.width, aSize.height);
|
|
rgbImage->mImageFormat = aImageFormat;
|
|
|
|
if (!rgbImage->AllocateBuffer(aSize, aImageFormat)) {
|
|
NS_WARNING("Failed to allocate shared memory for SharedRGBImage");
|
|
return nullptr;
|
|
}
|
|
|
|
return rgbImage.forget();
|
|
}
|
|
|
|
uint8_t *
|
|
SharedRGBImage::GetBuffer()
|
|
{
|
|
return mShmem->get<uint8_t>();
|
|
}
|
|
|
|
size_t
|
|
SharedRGBImage::GetBufferSize()
|
|
{
|
|
return mSize.width * mSize.height * gfxASurface::BytesPerPixel(mImageFormat);
|
|
}
|
|
|
|
gfxIntSize
|
|
SharedRGBImage::GetSize()
|
|
{
|
|
return mSize;
|
|
}
|
|
|
|
bool
|
|
SharedRGBImage::AllocateBuffer(nsIntSize aSize, gfxImageFormat aImageFormat)
|
|
{
|
|
if (mAllocated) {
|
|
NS_WARNING("Already allocated shmem");
|
|
return false;
|
|
}
|
|
|
|
size_t size = GetBufferSize();
|
|
|
|
if (size == 0 || size > MAX_FRAME_SIZE) {
|
|
NS_WARNING("Invalid frame size");
|
|
}
|
|
|
|
if (mImageContainerChild->AllocUnsafeShmemSync(size, OptimalShmemType(), mShmem)) {
|
|
mAllocated = true;
|
|
}
|
|
|
|
return mAllocated;
|
|
}
|
|
|
|
already_AddRefed<gfxASurface>
|
|
SharedRGBImage::GetAsSurface()
|
|
{
|
|
return nullptr;
|
|
}
|
|
|
|
SharedImage *
|
|
SharedRGBImage::ToSharedImage()
|
|
{
|
|
if (!mAllocated) {
|
|
return nullptr;
|
|
}
|
|
return new SharedImage(RGBImage(*mShmem,
|
|
nsIntRect(0, 0, mSize.width, mSize.height),
|
|
mImageFormat));
|
|
}
|
|
|
|
} // namespace layers
|
|
} // namespace mozilla
|