gpu: Workaround Adreno 420 bug with deleting current FBO.

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": "7.15",

[no sievers, 2015/02/10 19:11:33]

bump version

[vmiura, 2015/02/17 18:48:41]

Done.

   "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 1094 matching lines @@
         "type": "android",
         "version": {
           "op": "<",
           "value": "5.0.0"
         }
       },
       "gl_vendor": "Qualcomm.*",
       "features": [
         "ignore_egl_sync_failures"
       ]
+    },
+    {
+      "id": 100,
+      "description": "Adreno 420 driver loses FBO attachment contents on bound FBO deletion",
+      "cr_bugs": [457027],
+      "os": {
+        "type": "android"

[no sievers, 2015/02/10 19:11:33]

Can we deprecate this for the future in the hope that it gets fixed?
You could put version <= 5.0.1 or something.

[boliu, 2015/02/10 21:03:56]

Ehh...currently that check would be >= 5.0.2 as this bug is a regression in a
future version :(

[boliu, 2015/02/10 21:25:51]

Oops, should be:
"> 5.0.2"

[vmiura, 2015/02/11 05:07:43]

Yeah, it's actually a regression from > 5.0.2.

I think once we have an idea of what version ships, and what version it would be
fixed in then we can add the filter <= N case.

+      },
+      "gl_vendor": "Qualcomm.*",
+      "gl_renderer": ".*420",
+      "features": [
+        "unbind_attachments_on_bound_render_fbo_delete"
+      ]
     }
   ]
 }
 
 );  // LONG_STRING_CONST macro
 
 }  // namespace gpu