140 lines
5.1 KiB
C++
140 lines
5.1 KiB
C++
// Copyright 2019 The MediaPipe Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef MEDIAPIPE_GPU_GPU_BUFFER_FORMAT_H_
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#define MEDIAPIPE_GPU_GPU_BUFFER_FORMAT_H_
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#ifdef __APPLE__
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#include <CoreVideo/CoreVideo.h>
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#if !TARGET_OS_OSX
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#define MEDIAPIPE_GPU_BUFFER_USE_CV_PIXEL_BUFFER 1
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#endif // TARGET_OS_OSX
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#endif // defined(__APPLE__)
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#include "mediapipe/framework/formats/image_format.pb.h"
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#include "mediapipe/gpu/gl_base.h"
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// The behavior of multi-char constants is implementation-defined, so out of an
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// excess of caution we define them in this portable way.
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#define MEDIAPIPE_FOURCC(a, b, c, d) \
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(((a) << 24) + ((b) << 16) + ((c) << 8) + (d))
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namespace mediapipe {
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enum class GpuBufferFormat : uint32_t {
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kUnknown = 0,
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kBGRA32 = MEDIAPIPE_FOURCC('B', 'G', 'R', 'A'),
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kGrayFloat32 = MEDIAPIPE_FOURCC('L', '0', '0', 'f'),
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kGrayHalf16 = MEDIAPIPE_FOURCC('L', '0', '0', 'h'),
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kOneComponent8 = MEDIAPIPE_FOURCC('L', '0', '0', '8'),
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kTwoComponentHalf16 = MEDIAPIPE_FOURCC('2', 'C', '0', 'h'),
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kTwoComponentFloat32 = MEDIAPIPE_FOURCC('2', 'C', '0', 'f'),
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kBiPlanar420YpCbCr8VideoRange = MEDIAPIPE_FOURCC('4', '2', '0', 'v'),
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kBiPlanar420YpCbCr8FullRange = MEDIAPIPE_FOURCC('4', '2', '0', 'f'),
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kRGB24 = 0x00000018, // Note: prefer BGRA32 whenever possible.
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kRGBAHalf64 = MEDIAPIPE_FOURCC('R', 'G', 'h', 'A'),
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kRGBAFloat128 = MEDIAPIPE_FOURCC('R', 'G', 'f', 'A'),
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};
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// TODO: make this more generally applicable.
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enum class GlVersion {
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kGL = 1,
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kGLES2 = 2,
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kGLES3 = 3,
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};
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struct GlTextureInfo {
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GLint gl_internal_format;
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GLenum gl_format;
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GLenum gl_type;
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// For multiplane buffers, this represents how many times smaller than
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// the nominal image size a plane is.
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int downscale;
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};
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const GlTextureInfo& GlTextureInfoForGpuBufferFormat(GpuBufferFormat format,
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int plane,
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GlVersion gl_version);
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ImageFormat::Format ImageFormatForGpuBufferFormat(GpuBufferFormat format);
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GpuBufferFormat GpuBufferFormatForImageFormat(ImageFormat::Format format);
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#ifdef __APPLE__
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inline OSType CVPixelFormatForGpuBufferFormat(GpuBufferFormat format) {
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switch (format) {
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case GpuBufferFormat::kBGRA32:
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return kCVPixelFormatType_32BGRA;
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case GpuBufferFormat::kGrayHalf16:
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return kCVPixelFormatType_OneComponent16Half;
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case GpuBufferFormat::kGrayFloat32:
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return kCVPixelFormatType_OneComponent32Float;
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case GpuBufferFormat::kOneComponent8:
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return kCVPixelFormatType_OneComponent8;
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case GpuBufferFormat::kTwoComponentHalf16:
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return kCVPixelFormatType_TwoComponent16Half;
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case GpuBufferFormat::kTwoComponentFloat32:
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return kCVPixelFormatType_TwoComponent32Float;
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case GpuBufferFormat::kBiPlanar420YpCbCr8VideoRange:
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return kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange;
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case GpuBufferFormat::kBiPlanar420YpCbCr8FullRange:
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return kCVPixelFormatType_420YpCbCr8BiPlanarFullRange;
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case GpuBufferFormat::kRGB24:
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return kCVPixelFormatType_24RGB;
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case GpuBufferFormat::kRGBAHalf64:
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return kCVPixelFormatType_64RGBAHalf;
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case GpuBufferFormat::kRGBAFloat128:
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return kCVPixelFormatType_128RGBAFloat;
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case GpuBufferFormat::kUnknown:
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return -1;
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}
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return -1;
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}
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inline GpuBufferFormat GpuBufferFormatForCVPixelFormat(OSType format) {
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switch (format) {
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case kCVPixelFormatType_32BGRA:
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return GpuBufferFormat::kBGRA32;
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case kCVPixelFormatType_DepthFloat32:
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return GpuBufferFormat::kGrayFloat32;
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case kCVPixelFormatType_OneComponent16Half:
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return GpuBufferFormat::kGrayHalf16;
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case kCVPixelFormatType_OneComponent32Float:
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return GpuBufferFormat::kGrayFloat32;
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case kCVPixelFormatType_OneComponent8:
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return GpuBufferFormat::kOneComponent8;
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case kCVPixelFormatType_TwoComponent16Half:
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return GpuBufferFormat::kTwoComponentHalf16;
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case kCVPixelFormatType_TwoComponent32Float:
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return GpuBufferFormat::kTwoComponentFloat32;
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case kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange:
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return GpuBufferFormat::kBiPlanar420YpCbCr8VideoRange;
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case kCVPixelFormatType_420YpCbCr8BiPlanarFullRange:
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return GpuBufferFormat::kBiPlanar420YpCbCr8FullRange;
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case kCVPixelFormatType_24RGB:
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return GpuBufferFormat::kRGB24;
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case kCVPixelFormatType_64RGBAHalf:
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return GpuBufferFormat::kRGBAHalf64;
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case kCVPixelFormatType_128RGBAFloat:
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return GpuBufferFormat::kRGBAFloat128;
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}
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return GpuBufferFormat::kUnknown;
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}
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#endif // __APPLE__
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} // namespace mediapipe
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#endif // MEDIAPIPE_GPU_GPU_BUFFER_FORMAT_H_
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