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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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
#include "ExternalTextureMacIOSurface.h"
#include "mozilla/gfx/Logging.h"
#include "mozilla/gfx/MacIOSurface.h"
#include "mozilla/layers/ImageDataSerializer.h"
namespace mozilla::webgpu {
// static
UniquePtr<ExternalTextureMacIOSurface> ExternalTextureMacIOSurface::Create(
const uint32_t aWidth, const uint32_t aHeight,
const struct ffi::WGPUTextureFormat aFormat,
const ffi::WGPUTextureUsages aUsage) {
if (aFormat.tag != ffi::WGPUTextureFormat_Bgra8Unorm) {
gfxCriticalNoteOnce << "Non supported format: " << aFormat.tag;
return nullptr;
}
RefPtr<MacIOSurface> surface =
MacIOSurface::CreateIOSurface(aWidth, aHeight, true);
if (!surface) {
return nullptr;
}
return MakeUnique<ExternalTextureMacIOSurface>(aWidth, aHeight, aFormat,
aUsage, std::move(surface));
}
ExternalTextureMacIOSurface::ExternalTextureMacIOSurface(
const uint32_t aWidth, const uint32_t aHeight,
const struct ffi::WGPUTextureFormat aFormat,
const ffi::WGPUTextureUsages aUsage, RefPtr<MacIOSurface>&& aSurface)
: ExternalTexture(aWidth, aHeight, aFormat, aUsage),
mSurface(std::move(aSurface)) {}
ExternalTextureMacIOSurface::~ExternalTextureMacIOSurface() {}
void* ExternalTextureMacIOSurface::GetExternalTextureHandle() {
return nullptr;
}
uint32_t ExternalTextureMacIOSurface::GetIOSurfaceId() {
return mSurface->GetIOSurfaceID();
}
Maybe<layers::SurfaceDescriptor>
ExternalTextureMacIOSurface::ToSurfaceDescriptor(
Maybe<gfx::FenceInfo>& aFenceInfo) {
return Some(layers::SurfaceDescriptorMacIOSurface(
mSurface->GetIOSurfaceID(), !mSurface->HasAlpha(),
mSurface->GetYUVColorSpace()));
}
void ExternalTextureMacIOSurface::GetSnapshot(const ipc::Shmem& aDestShmem,
const gfx::IntSize& aSize) {
if (!mSurface->Lock()) {
gfxCriticalNoteOnce << "Failed to lock MacIOSurface";
return;
}
const size_t bytesPerRow = mSurface->GetBytesPerRow();
const uint32_t stride = layers::ImageDataSerializer::ComputeRGBStride(
gfx::SurfaceFormat::B8G8R8A8, aSize.width);
uint8_t* src = (uint8_t*)mSurface->GetBaseAddress();
uint8_t* dst = aDestShmem.get<uint8_t>();
MOZ_ASSERT(stride * aSize.height <= aDestShmem.Size<uint8_t>());
for (int y = 0; y < aSize.height; y++) {
memcpy(dst, src, stride);
src += bytesPerRow;
dst += stride;
}
}
} // namespace mozilla::webgpu