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// Copyright 2022 The Dawn Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <CoreFoundation/CoreFoundation.h>
#include <CoreVideo/CVPixelBuffer.h>
#include <IOSurface/IOSurfaceRef.h>
#include <memory>
#include <utility>
#include <vector>
#include "VideoViewsTests.h"
#include "dawn/common/Assert.h"
#include "dawn/common/CoreFoundationRef.h"
#include "dawn/native/MetalBackend.h"
namespace dawn {
namespace {
void AddIntegerValue(CFMutableDictionaryRef dictionary, const CFStringRef key, int32_t value) {
CFNumberRef number(CFNumberCreate(nullptr, kCFNumberSInt32Type, &value));
CFDictionaryAddValue(dictionary, key, number);
CFRelease(number);
}
class PlatformTextureIOSurface : public VideoViewsTestBackend::PlatformTexture {
public:
PlatformTextureIOSurface(wgpu::Texture&& texture, IOSurfaceRef iosurface)
: PlatformTexture(std::move(texture)) {
mIOSurface = AcquireCFRef<IOSurfaceRef>(iosurface);
}
~PlatformTextureIOSurface() override { mIOSurface = nullptr; }
bool CanWrapAsWGPUTexture() override { return true; }
private:
CFRef<IOSurfaceRef> mIOSurface = nullptr;
};
class VideoViewsTestBackendIOSurface : public VideoViewsTestBackend {
public:
void OnSetUp(WGPUDevice device) override { mWGPUDevice = device; }
private:
OSType ToCVFormat(wgpu::TextureFormat format) {
switch (format) {
case wgpu::TextureFormat::R8BG8Biplanar420Unorm:
return kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange;
default:
UNREACHABLE();
return 0;
}
}
size_t GetSubSamplingFactorPerPlane(wgpu::TextureFormat format, size_t plane) {
switch (format) {
case wgpu::TextureFormat::R8BG8Biplanar420Unorm:
return plane == VideoViewsTests::kYUVLumaPlaneIndex ? 1 : 2;
default:
UNREACHABLE();
return 0;
}
}
size_t BytesPerElement(wgpu::TextureFormat format, size_t plane) {
switch (format) {
case wgpu::TextureFormat::R8BG8Biplanar420Unorm:
return plane == VideoViewsTests::kYUVLumaPlaneIndex ? 1 : 2;
default:
UNREACHABLE();
return 0;
}
}
std::unique_ptr<VideoViewsTestBackend::PlatformTexture> CreateVideoTextureForTest(
wgpu::TextureFormat format,
wgpu::TextureUsage usage,
bool isCheckerboard,
bool initialized) override {
CFMutableDictionaryRef dict(CFDictionaryCreateMutable(kCFAllocatorDefault, 0,
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks));
AddIntegerValue(dict, kIOSurfaceWidth, VideoViewsTests::kYUVImageDataWidthInTexels);
AddIntegerValue(dict, kIOSurfaceHeight, VideoViewsTests::kYUVImageDataHeightInTexels);
AddIntegerValue(dict, kIOSurfacePixelFormat, ToCVFormat(format));
size_t num_planes = VideoViewsTests::NumPlanes(format);
CFMutableArrayRef planes(
CFArrayCreateMutable(kCFAllocatorDefault, num_planes, &kCFTypeArrayCallBacks));
size_t total_bytes_alloc = 0;
for (size_t plane = 0; plane < num_planes; ++plane) {
const size_t factor = GetSubSamplingFactorPerPlane(format, plane);
const size_t plane_width = VideoViewsTests::kYUVImageDataWidthInTexels / factor;
const size_t plane_height = VideoViewsTests::kYUVImageDataHeightInTexels / factor;
const size_t plane_bytes_per_element = BytesPerElement(format, plane);
const size_t plane_bytes_per_row = IOSurfaceAlignProperty(
kIOSurfacePlaneBytesPerRow, plane_width * plane_bytes_per_element);
const size_t plane_bytes_alloc =
IOSurfaceAlignProperty(kIOSurfacePlaneSize, plane_height * plane_bytes_per_row);
const size_t plane_offset =
IOSurfaceAlignProperty(kIOSurfacePlaneOffset, total_bytes_alloc);
CFMutableDictionaryRef plane_info(
CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks));
AddIntegerValue(plane_info, kIOSurfacePlaneWidth, plane_width);
AddIntegerValue(plane_info, kIOSurfacePlaneHeight, plane_height);
AddIntegerValue(plane_info, kIOSurfacePlaneBytesPerElement, plane_bytes_per_element);
AddIntegerValue(plane_info, kIOSurfacePlaneBytesPerRow, plane_bytes_per_row);
AddIntegerValue(plane_info, kIOSurfacePlaneSize, plane_bytes_alloc);
AddIntegerValue(plane_info, kIOSurfacePlaneOffset, plane_offset);
CFArrayAppendValue(planes, plane_info);
CFRelease(plane_info);
total_bytes_alloc = plane_offset + plane_bytes_alloc;
}
CFDictionaryAddValue(dict, kIOSurfacePlaneInfo, planes);
CFRelease(planes);
total_bytes_alloc = IOSurfaceAlignProperty(kIOSurfaceAllocSize, total_bytes_alloc);
AddIntegerValue(dict, kIOSurfaceAllocSize, total_bytes_alloc);
IOSurfaceRef surface = IOSurfaceCreate(dict);
CFRelease(dict);
if (initialized) {
IOSurfaceLock(surface, 0, nullptr);
for (size_t plane = 0; plane < num_planes; ++plane) {
std::vector<uint8_t> data = VideoViewsTests::GetTestTextureDataWithPlaneIndex(
plane, IOSurfaceGetBytesPerRowOfPlane(surface, plane),
IOSurfaceGetHeightOfPlane(surface, plane), isCheckerboard);
void* pointer = IOSurfaceGetBaseAddressOfPlane(surface, plane);
memcpy(pointer, data.data(), data.size());
}
IOSurfaceUnlock(surface, 0, nullptr);
}
wgpu::TextureDescriptor textureDesc;
textureDesc.format = format;
textureDesc.dimension = wgpu::TextureDimension::e2D;
textureDesc.usage = usage;
textureDesc.size = {VideoViewsTests::kYUVImageDataWidthInTexels,
VideoViewsTests::kYUVImageDataHeightInTexels, 1};
wgpu::DawnTextureInternalUsageDescriptor internalDesc;
internalDesc.internalUsage = wgpu::TextureUsage::CopySrc;
textureDesc.nextInChain = &internalDesc;
native::metal::ExternalImageDescriptorIOSurface descriptor = {};
descriptor.cTextureDescriptor =
reinterpret_cast<const WGPUTextureDescriptor*>(&textureDesc);
descriptor.isInitialized = true;
descriptor.ioSurface = surface;
return std::make_unique<PlatformTextureIOSurface>(
wgpu::Texture::Acquire(native::metal::WrapIOSurface(mWGPUDevice, &descriptor)),
surface);
}
void DestroyVideoTextureForTest(
std::unique_ptr<VideoViewsTestBackend::PlatformTexture>&& platformTexture) override {}
WGPUDevice mWGPUDevice = nullptr;
};
} // anonymous namespace
// static
BackendTestConfig VideoViewsTestBackend::Backend() {
return MetalBackend();
}
// static
std::unique_ptr<VideoViewsTestBackend> VideoViewsTestBackend::Create() {
return std::make_unique<VideoViewsTestBackendIOSurface>();
}
} // namespace dawn