| // Copyright 2023 The Dawn & Tint Authors |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are met: |
| // |
| // 1. Redistributions of source code must retain the above copyright notice, this |
| // list of conditions and the following disclaimer. |
| // |
| // 2. Redistributions in binary form must reproduce the above copyright notice, |
| // this list of conditions and the following disclaimer in the documentation |
| // and/or other materials provided with the distribution. |
| // |
| // 3. Neither the name of the copyright holder nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
| // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| // OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #include "dawn/common/IOSurfaceUtils.h" |
| |
| #include <CoreFoundation/CoreFoundation.h> |
| #include <CoreVideo/CVPixelBuffer.h> |
| |
| #include "dawn/common/Assert.h" |
| #include "dawn/common/CoreFoundationRef.h" |
| |
| namespace dawn { |
| |
| namespace { |
| |
| void AddIntegerValue(CFMutableDictionaryRef dictionary, const CFStringRef key, int32_t value) { |
| CFRef<CFNumberRef> number = AcquireCFRef(CFNumberCreate(nullptr, kCFNumberSInt32Type, &value)); |
| CFDictionaryAddValue(dictionary, key, number.Get()); |
| } |
| |
| OSType ToCVFormat(wgpu::TextureFormat format) { |
| switch (format) { |
| case wgpu::TextureFormat::R8BG8Biplanar420Unorm: |
| return kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange; |
| case wgpu::TextureFormat::R8BG8Biplanar422Unorm: |
| return kCVPixelFormatType_422YpCbCr8BiPlanarVideoRange; |
| case wgpu::TextureFormat::R8BG8Biplanar444Unorm: |
| return kCVPixelFormatType_444YpCbCr8BiPlanarVideoRange; |
| case wgpu::TextureFormat::R10X6BG10X6Biplanar420Unorm: |
| return kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange; |
| case wgpu::TextureFormat::R10X6BG10X6Biplanar422Unorm: |
| return kCVPixelFormatType_422YpCbCr10BiPlanarVideoRange; |
| case wgpu::TextureFormat::R10X6BG10X6Biplanar444Unorm: |
| return kCVPixelFormatType_444YpCbCr10BiPlanarVideoRange; |
| case wgpu::TextureFormat::R8BG8A8Triplanar420Unorm: |
| return kCVPixelFormatType_420YpCbCr8VideoRange_8A_TriPlanar; |
| default: |
| DAWN_UNREACHABLE(); |
| return 0; |
| } |
| } |
| |
| uint32_t NumPlanes(wgpu::TextureFormat format) { |
| switch (format) { |
| case wgpu::TextureFormat::R8BG8Biplanar420Unorm: |
| case wgpu::TextureFormat::R8BG8Biplanar422Unorm: |
| case wgpu::TextureFormat::R8BG8Biplanar444Unorm: |
| case wgpu::TextureFormat::R10X6BG10X6Biplanar420Unorm: |
| case wgpu::TextureFormat::R10X6BG10X6Biplanar422Unorm: |
| case wgpu::TextureFormat::R10X6BG10X6Biplanar444Unorm: |
| return 2; |
| case wgpu::TextureFormat::R8BG8A8Triplanar420Unorm: |
| return 3; |
| default: |
| DAWN_UNREACHABLE(); |
| return 1; |
| } |
| } |
| |
| size_t GetSubSamplingFactorPerPlane(wgpu::TextureFormat format, size_t plane, bool isHorizontal) { |
| switch (format) { |
| case wgpu::TextureFormat::R8BG8Biplanar420Unorm: |
| case wgpu::TextureFormat::R8BG8A8Triplanar420Unorm: |
| case wgpu::TextureFormat::R10X6BG10X6Biplanar420Unorm: |
| return plane == 1 ? 2 : 1; |
| case wgpu::TextureFormat::R8BG8Biplanar422Unorm: |
| case wgpu::TextureFormat::R10X6BG10X6Biplanar422Unorm: |
| return plane == 1 && isHorizontal ? 2 : 1; |
| case wgpu::TextureFormat::R8BG8Biplanar444Unorm: |
| case wgpu::TextureFormat::R10X6BG10X6Biplanar444Unorm: |
| return 1; |
| default: |
| DAWN_UNREACHABLE(); |
| return 0; |
| } |
| } |
| |
| size_t BytesPerElement(wgpu::TextureFormat format, size_t plane) { |
| switch (format) { |
| case wgpu::TextureFormat::R8BG8Biplanar420Unorm: |
| case wgpu::TextureFormat::R8BG8Biplanar422Unorm: |
| case wgpu::TextureFormat::R8BG8Biplanar444Unorm: |
| case wgpu::TextureFormat::R8BG8A8Triplanar420Unorm: |
| return plane == 1 ? 2 : 1; |
| case wgpu::TextureFormat::R10X6BG10X6Biplanar420Unorm: |
| case wgpu::TextureFormat::R10X6BG10X6Biplanar422Unorm: |
| case wgpu::TextureFormat::R10X6BG10X6Biplanar444Unorm: |
| return plane == 1 ? 4 : 2; |
| default: |
| DAWN_UNREACHABLE(); |
| return 0; |
| } |
| } |
| |
| } // namespace |
| |
| IOSurfaceRef CreateMultiPlanarIOSurface(wgpu::TextureFormat format, |
| uint32_t width, |
| uint32_t height) { |
| CFRef<CFMutableDictionaryRef> dict = AcquireCFRef(CFDictionaryCreateMutable( |
| kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks)); |
| AddIntegerValue(dict.Get(), kIOSurfaceWidth, width); |
| AddIntegerValue(dict.Get(), kIOSurfaceHeight, height); |
| AddIntegerValue(dict.Get(), kIOSurfacePixelFormat, ToCVFormat(format)); |
| |
| size_t numPlanes = NumPlanes(format); |
| |
| CFRef<CFMutableArrayRef> planes = |
| AcquireCFRef(CFArrayCreateMutable(kCFAllocatorDefault, numPlanes, &kCFTypeArrayCallBacks)); |
| size_t totalBytesAlloc = 0; |
| for (size_t plane = 0; plane < numPlanes; ++plane) { |
| const size_t planeWidth = |
| width / GetSubSamplingFactorPerPlane(format, plane, /*isHorizontal=*/true); |
| const size_t planeHeight = |
| height / GetSubSamplingFactorPerPlane(format, plane, /*isHorizontal=*/false); |
| const size_t planeBytesPerElement = BytesPerElement(format, plane); |
| const size_t planeBytesPerRow = |
| IOSurfaceAlignProperty(kIOSurfacePlaneBytesPerRow, planeWidth * planeBytesPerElement); |
| const size_t planeBytesAlloc = |
| IOSurfaceAlignProperty(kIOSurfacePlaneSize, planeHeight * planeBytesPerRow); |
| const size_t planeOffset = IOSurfaceAlignProperty(kIOSurfacePlaneOffset, totalBytesAlloc); |
| |
| CFRef<CFMutableDictionaryRef> planeInfo = AcquireCFRef( |
| CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, |
| &kCFTypeDictionaryValueCallBacks)); |
| |
| AddIntegerValue(planeInfo.Get(), kIOSurfacePlaneWidth, planeWidth); |
| AddIntegerValue(planeInfo.Get(), kIOSurfacePlaneHeight, planeHeight); |
| AddIntegerValue(planeInfo.Get(), kIOSurfacePlaneBytesPerElement, planeBytesPerElement); |
| AddIntegerValue(planeInfo.Get(), kIOSurfacePlaneBytesPerRow, planeBytesPerRow); |
| AddIntegerValue(planeInfo.Get(), kIOSurfacePlaneSize, planeBytesAlloc); |
| AddIntegerValue(planeInfo.Get(), kIOSurfacePlaneOffset, planeOffset); |
| CFArrayAppendValue(planes.Get(), planeInfo.Get()); |
| totalBytesAlloc = planeOffset + planeBytesAlloc; |
| } |
| CFDictionaryAddValue(dict.Get(), kIOSurfacePlaneInfo, planes.Get()); |
| |
| totalBytesAlloc = IOSurfaceAlignProperty(kIOSurfaceAllocSize, totalBytesAlloc); |
| AddIntegerValue(dict.Get(), kIOSurfaceAllocSize, totalBytesAlloc); |
| |
| IOSurfaceRef surface = IOSurfaceCreate(dict.Get()); |
| |
| return surface; |
| } |
| } // namespace dawn |