From 46cca0d4860b7a9b29246a3af04bc9cf658df204 Mon Sep 17 00:00:00 2001
From: MediaPipe Team <mediapipe-team@google.com>
Date: Fri, 27 Oct 2023 02:23:39 -0700
Subject: [PATCH] Rolling back.

PiperOrigin-RevId: 577128565
---
 mediapipe/gpu/gl_texture_buffer.cc |  8 --------
 mediapipe/gpu/gpu_buffer_format.cc | 10 ----------
 mediapipe/gpu/gpu_buffer_format.h  |  9 ---------
 3 files changed, 27 deletions(-)

diff --git a/mediapipe/gpu/gl_texture_buffer.cc b/mediapipe/gpu/gl_texture_buffer.cc
index da2533f1c..48afbd219 100644
--- a/mediapipe/gpu/gl_texture_buffer.cc
+++ b/mediapipe/gpu/gl_texture_buffer.cc
@@ -14,8 +14,6 @@
 
 #include "mediapipe/gpu/gl_texture_buffer.h"
 
-#include <cstdint>
-
 #include "absl/log/absl_check.h"
 #include "absl/log/absl_log.h"
 #include "mediapipe/framework/formats/image_frame.h"
@@ -133,12 +131,6 @@ bool GlTextureBuffer::CreateInternal(const void* data, int alignment) {
       SymbolAvailable(&glTexStorage2D)) {
     ABSL_CHECK(data == nullptr) << "unimplemented";
     glTexStorage2D(target_, 1, info.gl_internal_format, width_, height_);
-  } else if (info.immutable) {
-    ABSL_CHECK(SymbolAvailable(&glTexStorage2D) &&
-               context->GetGlVersion() != GlVersion::kGLES2)
-        << "Immutable GpuBuffer format requested is not supported in this "
-        << "GLContext. Format was " << static_cast<uint32_t>(format_);
-    glTexStorage2D(target_, 1, info.gl_internal_format, width_, height_);
   } else {
     glTexImage2D(target_, 0 /* level */, info.gl_internal_format, width_,
                  height_, 0 /* border */, info.gl_format, info.gl_type, data);
diff --git a/mediapipe/gpu/gpu_buffer_format.cc b/mediapipe/gpu/gpu_buffer_format.cc
index 930bad735..646fb383f 100644
--- a/mediapipe/gpu/gpu_buffer_format.cc
+++ b/mediapipe/gpu/gpu_buffer_format.cc
@@ -163,14 +163,6 @@ const GlTextureInfo& GlTextureInfoForGpuBufferFormat(GpuBufferFormat format,
            {
                {GL_RGBA32F, GL_RGBA, GL_FLOAT, 1},
            }},
-          {GpuBufferFormat::kImmutableRGBAFloat128,
-           {
-               {GL_RGBA32F, GL_RGBA, GL_FLOAT, 1, true /* immutable */},
-           }},
-          {GpuBufferFormat::kImmutableRGBA32,
-           {
-               {GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, 1, true /* immutable */},
-           }},
       }};
 
   static const auto* gles2_format_info = ([] {
@@ -214,7 +206,6 @@ const GlTextureInfo& GlTextureInfoForGpuBufferFormat(GpuBufferFormat format,
 
 ImageFormat::Format ImageFormatForGpuBufferFormat(GpuBufferFormat format) {
   switch (format) {
-    case GpuBufferFormat::kImmutableRGBA32:
     case GpuBufferFormat::kBGRA32:
       // TODO: verify we are handling order of channels correctly.
       return ImageFormat::SRGBA;
@@ -230,7 +221,6 @@ ImageFormat::Format ImageFormatForGpuBufferFormat(GpuBufferFormat format) {
       return ImageFormat::SRGB;
     case GpuBufferFormat::kTwoComponentFloat32:
       return ImageFormat::VEC32F2;
-    case GpuBufferFormat::kImmutableRGBAFloat128:
     case GpuBufferFormat::kRGBAFloat128:
       return ImageFormat::VEC32F4;
     case GpuBufferFormat::kRGBA32:
diff --git a/mediapipe/gpu/gpu_buffer_format.h b/mediapipe/gpu/gpu_buffer_format.h
index 0b6badfb5..06eabda77 100644
--- a/mediapipe/gpu/gpu_buffer_format.h
+++ b/mediapipe/gpu/gpu_buffer_format.h
@@ -53,10 +53,6 @@ enum class GpuBufferFormat : uint32_t {
   kRGB24 = 0x00000018,  // Note: prefer BGRA32 whenever possible.
   kRGBAHalf64 = MEDIAPIPE_FOURCC('R', 'G', 'h', 'A'),
   kRGBAFloat128 = MEDIAPIPE_FOURCC('R', 'G', 'f', 'A'),
-  // Immutable version of kRGBA32
-  kImmutableRGBA32 = MEDIAPIPE_FOURCC('4', 'C', 'I', '8'),
-  // Immutable version of kRGBAFloat128
-  kImmutableRGBAFloat128 = MEDIAPIPE_FOURCC('4', 'C', 'I', 'f'),
   // 8-bit Y plane + interleaved 8-bit U/V plane with 2x2 subsampling.
   kNV12 = MEDIAPIPE_FOURCC('N', 'V', '1', '2'),
   // 8-bit Y plane + interleaved 8-bit V/U plane with 2x2 subsampling.
@@ -82,9 +78,6 @@ struct GlTextureInfo {
   // For multiplane buffers, this represents how many times smaller than
   // the nominal image size a plane is.
   int downscale;
-  // For GLES3.1+ compute shaders, users may explicitly request immutable
-  // textures
-  bool immutable = false;
 };
 
 const GlTextureInfo& GlTextureInfoForGpuBufferFormat(GpuBufferFormat format,
@@ -128,8 +121,6 @@ inline OSType CVPixelFormatForGpuBufferFormat(GpuBufferFormat format) {
       return kCVPixelFormatType_64RGBAHalf;
     case GpuBufferFormat::kRGBAFloat128:
       return kCVPixelFormatType_128RGBAFloat;
-    case GpuBufferFormat::kImmutableRGBA32:
-    case GpuBufferFormat::kImmutableRGBAFloat128:
     case GpuBufferFormat::kNV12:
     case GpuBufferFormat::kNV21:
     case GpuBufferFormat::kI420: