emulate srgb format for generateMipmap

gpu/config/gpu_driver_bug_list_json.cc

 // Copyright (c) 2013 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.
 
 // Determines whether a certain driver bug exists in the current system.
 // The format of a valid gpu_driver_bug_list.json file is defined in
 // <gpu/config/gpu_control_list_format.txt>.
 // The supported "features" can be found in
 // <gpu/config/gpu_driver_bug_workaround_type.h>.
 
 #include "gpu/config/gpu_control_list_jsons.h"
 
 #define LONG_STRING_CONST(...) #__VA_ARGS__
 
 namespace gpu {
 
 const char kGpuDriverBugListJson[] = LONG_STRING_CONST(
 
 {
   "name": "gpu driver bug list",
   // Please update the version number whenever you change this file.
-  "version": "9.03",
+  "version": "9.04",
   "entries": [
     {
       "id": 1,
       "description": "Imagination driver doesn't like uploading lots of buffer data constantly",
       "os": {
         "type": "android"
       },
       "gl_vendor": "Imagination.*",
       "features": [
         "use_client_side_arrays_for_stream_buffers"
@@ skipping 2003 matching lines @@
       "description": "Disable partial swaps on Mesa drivers (detected with GL_VERSION)",
       "cr_bugs": [339493],
       "os": {
         "type": "linux"
       },
       "gl_type": "gl",
       "gl_version_string": ".*Mesa.*",
       "features": [
         "disable_post_sub_buffers_for_onscreen_surfaces"
       ]
+    },
+    {
+      "id": 191,
+      "description": "Decode and encode before generateMipmap for srgb format textures",
+      "cr_bugs": [634519],
+      "gl_type": "gl",
+      "gl_version": {
+        "op": "<",
+        "value": "4.4"
+      },
+      "features": [
+        "decode_encode_srgb_for_generatemipmap"
+      ]
     }

[Julien Isorce Samsung, 2016/10/04 13:41:25]

Because of crbug.com/222934, you cannot rely on gl_version for macosx.
For osx you can only use os version, and vendor/device ids.
So you have to split your new entry into 2. First one for the
general case that will apply on all os except osx.
Second entry will be specific to macosx, see below for example:

{
  "id": 191,
  "description": "Decode and encode before generateMipmap for srgb format
textures XXX",
  "cr_bugs": [634519],
  "gl_type": "gl",
  "gl_version": {
    "op": "<",
    "value": "4.4"
  },
  "exceptions": [
    {
      "os": {
        "type": "macosx"
      }
    }
  ],
  "features": [
    "decode_encode_srgb_for_generatemipmap"
  ]
},
{
  "id": 192,
  "description": "Decode and encode before generateMipmap for srgb format
textures XXX",
  "cr_bugs": [634519],
  "os": {
    "type": "macosx",
    "version": {
      "op": "<=",
      "value": "M.N" // should be reasonable on osx to rely roughly gl
                     // version with os version
                     // this is what other osx entries do in this file
    }
  },
  // if needed, also rely on vendor and device ids
  "vendor_id": "X",
  "device_id": ["Y1", "Y2", "Y3"],
  "features": [
    "decode_encode_srgb_for_generatemipmap"
  ]
}

   ]
   // Please update the version number at beginning of this file whenever you
   // change this file.
 }
 
 );  // LONG_STRING_CONST macro
 
 }  // namespace gpu