From a2cd3e7f954a16ef6e2c145134edaee16223e9b5 Mon Sep 17 00:00:00 2001
From: MediaPipe Team <mediapipe-team@google.com>
Date: Wed, 12 Jul 2023 15:15:56 -0700
Subject: [PATCH] Internal change

PiperOrigin-RevId: 547614484
---
 mediapipe/gpu/gpu_buffer_format.cc | 5 +++++
 mediapipe/gpu/gpu_buffer_format.h  | 2 ++
 2 files changed, 7 insertions(+)

diff --git a/mediapipe/gpu/gpu_buffer_format.cc b/mediapipe/gpu/gpu_buffer_format.cc
index 00ee9e248..e88aa602e 100644
--- a/mediapipe/gpu/gpu_buffer_format.cc
+++ b/mediapipe/gpu/gpu_buffer_format.cc
@@ -100,6 +100,10 @@ const GlTextureInfo& GlTextureInfoForGpuBufferFormat(GpuBufferFormat format,
                {GL_R8, GL_RED, GL_UNSIGNED_BYTE, 1},
 #endif  // TARGET_OS_OSX
            }},
+          {GpuBufferFormat::kOneComponent8Alpha,
+           {
+               {GL_ALPHA, GL_ALPHA, GL_UNSIGNED_BYTE, 1},
+           }},
           {GpuBufferFormat::kOneComponent8Red,
            {
                {GL_R8, GL_RED, GL_UNSIGNED_BYTE, 1},
@@ -221,6 +225,7 @@ ImageFormat::Format ImageFormatForGpuBufferFormat(GpuBufferFormat format) {
     case GpuBufferFormat::kRGBA32:
       // TODO: this likely maps to ImageFormat::SRGBA
     case GpuBufferFormat::kGrayHalf16:
+    case GpuBufferFormat::kOneComponent8Alpha:
     case GpuBufferFormat::kOneComponent8Red:
     case GpuBufferFormat::kTwoComponent8:
     case GpuBufferFormat::kTwoComponentHalf16:
diff --git a/mediapipe/gpu/gpu_buffer_format.h b/mediapipe/gpu/gpu_buffer_format.h
index 5d77afeb6..06eabda77 100644
--- a/mediapipe/gpu/gpu_buffer_format.h
+++ b/mediapipe/gpu/gpu_buffer_format.h
@@ -43,6 +43,7 @@ enum class GpuBufferFormat : uint32_t {
   kGrayFloat32 = MEDIAPIPE_FOURCC('L', '0', '0', 'f'),
   kGrayHalf16 = MEDIAPIPE_FOURCC('L', '0', '0', 'h'),
   kOneComponent8 = MEDIAPIPE_FOURCC('L', '0', '0', '8'),
+  kOneComponent8Alpha = MEDIAPIPE_FOURCC('A', '0', '0', '8'),
   kOneComponent8Red = MEDIAPIPE_FOURCC('R', '0', '0', '8'),
   kTwoComponent8 = MEDIAPIPE_FOURCC('2', 'C', '0', '8'),
   kTwoComponentHalf16 = MEDIAPIPE_FOURCC('2', 'C', '0', 'h'),
@@ -101,6 +102,7 @@ inline OSType CVPixelFormatForGpuBufferFormat(GpuBufferFormat format) {
       return kCVPixelFormatType_OneComponent32Float;
     case GpuBufferFormat::kOneComponent8:
       return kCVPixelFormatType_OneComponent8;
+    case GpuBufferFormat::kOneComponent8Alpha:
     case GpuBufferFormat::kOneComponent8Red:
       return -1;
     case GpuBufferFormat::kTwoComponent8: