Check that attachments are the correct type for the attachment type

gpu/command_buffer/common/gles2_cmd_utils.cc

 // Copyright (c) 2011 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.
 
 // This file is here so other GLES2 related files can have a common set of
 // includes where appropriate.
 
 #include <stdio.h>
 #include <GLES2/gl2.h>
 #include <GLES2/gl2ext.h>
@@ skipping 525 matching lines @@
     GL_TEXTURE_CUBE_MAP_NEGATIVE_Y,
     GL_TEXTURE_CUBE_MAP_POSITIVE_Z,
     GL_TEXTURE_CUBE_MAP_NEGATIVE_Z,
   };
   return faces[index];
 }
 
 uint32 GLES2Util::GetChannelsForFormat(int format) {
   switch (format) {
     case GL_ALPHA:
-      return 0x0008;
+    case GL_ALPHA16F_EXT:
+    case GL_ALPHA32F_EXT:
+      return kAlpha;
     case GL_LUMINANCE:
-      return 0x0007;
+      return kRGB;
     case GL_LUMINANCE_ALPHA:
-      return 0x000F;
+      return kRGBA;
     case GL_RGB:
     case GL_RGB8_OES:
     case GL_RGB565:
-      return 0x0007;
+    case GL_RGB16F_EXT:
+    case GL_RGB32F_EXT:
+      return kRGB;
     case GL_BGRA_EXT:
+    case GL_BGRA8_EXT:
+    case GL_RGBA16F_EXT:
+    case GL_RGBA32F_EXT:
     case GL_RGBA:
     case GL_RGBA8_OES:
     case GL_RGBA4:
     case GL_RGB5_A1:
-      return 0x000F;
+      return kRGBA;
+    case GL_DEPTH_COMPONENT16:
+    case GL_DEPTH_COMPONENT:
+      return kDepth;
+    case GL_STENCIL_INDEX8:
+      return kStencil;
+    case GL_DEPTH_STENCIL_OES:
+    case GL_DEPTH24_STENCIL8_OES:
+      return kDepth | kStencil;
     default:
       return 0x0000;
   }
+}
+
+uint32 GLES2Util::GetChannelsNeededForAttachmentType(int type) {
+  switch (type) {
+    case GL_COLOR_ATTACHMENT0:
+      return kRGBA;
+    case GL_DEPTH_ATTACHMENT:
+      return kDepth;
+    case GL_STENCIL_ATTACHMENT:
+      return kStencil;
+    default:
+      return 0x0000;
+  }
 }
 
 std::string GLES2Util::GetStringEnum(uint32 value) {
   const EnumToString* entry = enum_to_string_table_;
   const EnumToString* end = entry + enum_to_string_table_len_;
   for (;entry < end; ++entry) {
     if (value == entry->value) {
       return entry->name;
     }
   }
@@ skipping 22 matching lines @@
     }
   }
   return GetStringEnum(value);
 }
 
 #include "../common/gles2_cmd_utils_implementation_autogen.h"
 
 }  // namespace gles2
 }  // namespace gpu