Support RGB32F and RGBA32F for CopyTextureCHROMIUM in ES2 with related extensions

gpu/command_buffer/service/gles2_cmd_decoder.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "gpu/command_buffer/service/gles2_cmd_decoder.h"
 
 #include <limits.h>
 #include <stddef.h>
 #include <stdint.h>
 #include <stdio.h>
@@ skipping 13963 matching lines @@
          GLES2Util::IsUnsignedIntegerFormat(read_format))) {
       *output_error_msg = std::string("incompatible format");
       return false;
     }
   }
   if ((channels_needed & (GLES2Util::kDepth | GLES2Util::kStencil)) != 0) {
     *output_error_msg =
         std::string("can not be used with depth or stencil textures");
     return false;
   }
-  if (feature_info_->IsWebGL2OrES3Context()) {
+  if (feature_info_->IsWebGL2OrES3Context() ||
+      (feature_info_->feature_flags().chromium_color_buffer_float_rgb &&
+       internal_format == GL_RGB32F) ||
+      (feature_info_->feature_flags().chromium_color_buffer_float_rgba &&
+       internal_format == GL_RGBA32F)) {
     if (GLES2Util::IsSizedColorFormat(internal_format)) {
       int sr, sg, sb, sa;
       GLES2Util::GetColorFormatComponentSizes(
           read_format, read_type, &sr, &sg, &sb, &sa);
       DCHECK(sr > 0 || sg > 0 || sb > 0 || sa > 0);
       int dr, dg, db, da;
       GLES2Util::GetColorFormatComponentSizes(
           internal_format, 0, &dr, &dg, &db, &da);
       DCHECK(dr > 0 || dg > 0 || db > 0 || da > 0);
       if ((dr > 0 && sr != dr) ||
@@ skipping 2320 matching lines @@
       valid_dest_format = feature_info_->IsWebGL2OrES3Context();
       break;
     case GL_RGB9_E5:
       valid_dest_format = !gl_version_info().is_es;
       break;
     case GL_R16F:
     case GL_R32F:
     case GL_RG16F:
     case GL_RG32F:
     case GL_RGB16F:
-    case GL_RGB32F:
     case GL_RGBA16F:
-    case GL_RGBA32F:
     case GL_R11F_G11F_B10F:
       valid_dest_format = feature_info_->ext_color_buffer_float_available();
       break;
+    case GL_RGB32F:
+      valid_dest_format =
+          feature_info_->ext_color_buffer_float_available() ||
+          feature_info_->feature_flags().chromium_color_buffer_float_rgb;
+      break;
+    case GL_RGBA32F:
+      valid_dest_format =
+          feature_info_->ext_color_buffer_float_available() ||
+          feature_info_->feature_flags().chromium_color_buffer_float_rgba;
+      break;
     default:
       valid_dest_format = false;
       break;
   }
 
   bool valid_source_format =
       source_internal_format == GL_RED || source_internal_format == GL_ALPHA ||
       source_internal_format == GL_RGB || source_internal_format == GL_RGBA ||
       source_internal_format == GL_RGB8 || source_internal_format == GL_RGBA8 ||
       source_internal_format == GL_LUMINANCE ||
@@ skipping 2949 matching lines @@
 }
 
 // Include the auto-generated part of this file. We split this because it means
 // we can easily edit the non-auto generated parts right here in this file
 // instead of having to edit some template or the code generator.
 #include "base/macros.h"
 #include "gpu/command_buffer/service/gles2_cmd_decoder_autogen.h"
 
 }  // namespace gles2
 }  // namespace gpu