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PiperOrigin-RevId: 267274408

mediapipe/gpu/metal_shader_base.h

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+// Copyright 2019 The MediaPipe 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.
+
+#ifndef MEDIAPIPE_GPU_METAL_SHADER_BASE_H_
+#define MEDIAPIPE_GPU_METAL_SHADER_BASE_H_
+
+#include <simd/simd.h>
+
+typedef struct {
+  // Vertex position in 2D clip space.
+  vector_float2 position;
+  // Corresponding texture coordinate.
+  vector_float2 texture_coordinate;
+} MediaPipeTexturedVertex;
+
+// Common buffer indices used in our Metal shaders.
+typedef enum {
+  MediaPipeBufferIndexInputVertices = 0,
+  MediaPipeBufferIndexRgbWeights = 1,
+  MediaPipeBufferIndexPixelSize = 2,
+  MediaPipeBufferIndexOutputColor = 3,
+} MediaPipeBufferIndex;
+
+// Common texture indices used in our Metal shaders.
+typedef enum {
+  MediaPipeTextureIndexInputColor = 0,
+  MediaPipeTextureIndexOutputColor = 1,
+} MediaPipeTextureIndex;
+
+typedef vector_float3 MetalRgbWeightPacketType;
+
+#endif  // MEDIAPIPE_GPU_METAL_SHADER_BASE_H_