Reset TexImage2D base level to workaround Intel mac driver bug

gpu/command_buffer/service/texture_manager.h

 // 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.
 
 #ifndef GPU_COMMAND_BUFFER_SERVICE_TEXTURE_MANAGER_H_
 #define GPU_COMMAND_BUFFER_SERVICE_TEXTURE_MANAGER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 679 matching lines @@
   Texture* texture_;
   GLuint client_id_;
   GLint num_observers_;
   bool force_context_lost_;
 
   DISALLOW_COPY_AND_ASSIGN(TextureRef);
 };
 
 // Holds data that is per gles2_cmd_decoder, but is related to to the
 // TextureManager.
-struct DecoderTextureState {
+struct GPU_EXPORT DecoderTextureState {
   // total_texture_upload_time automatically initialized to 0 in default
   // constructor.
   explicit DecoderTextureState(const GpuDriverBugWorkarounds& workarounds);
 
   // This indicates all the following texSubImage*D calls that are part of the
   // failed texImage*D call should be ignored. The client calls have a lock
   // around them, so it will affect only a single texImage*D + texSubImage*D
   // group.
   bool tex_image_failed;
 
@@ skipping 411 matching lines @@
       DecoderTextureState* texture_state,
       ContextState* state,
       DecoderFramebufferState* framebuffer_state,
       TextureRef* texture_ref,
       const char* function_name,
       const DoTexImageArguments& args) {
     DoCubeMapWorkaround(texture_state, state, framebuffer_state,
                         texture_ref, function_name, args);
   }
 
+  void DoTexImage(DecoderTextureState* texture_state,
+                  ContextState* state,
+                  DecoderFramebufferState* framebuffer_state,
+                  const char* function_name,
+                  TextureRef* texture_ref,
+                  const DoTexImageArguments& args);
+

[yizhou.jiang, 2017/06/09 07:58:16]

I move DoTexImage to public in order to test it in Texture_manager_unittests.cc.

  private:
   friend class Texture;
   friend class TextureRef;
 
   // Helper for Initialize().
   scoped_refptr<TextureRef> CreateDefaultAndBlackTextures(
       GLenum target,
       GLuint* black_texture);
 
-  void DoTexImage(
-      DecoderTextureState* texture_state,
-      ContextState* state,
-      DecoderFramebufferState* framebuffer_state,
-      const char* function_name,
-      TextureRef* texture_ref,
-      const DoTexImageArguments& args);
-
   // Reserve memory for the texture and set its attributes so it can be filled
   // with TexSubImage. The image contents are undefined after this function,
   // so make sure it's subsequently filled in its entirety.
   void ReserveTexImageToBeFilled(DecoderTextureState* texture_state,
                                  ContextState* state,
                                  DecoderFramebufferState* framebuffer_state,
                                  const char* function_name,
                                  TextureRef* texture_ref,
                                  const DoTexImageArguments& args);
 
@@ skipping 87 matching lines @@
 
   ServiceDiscardableManager* discardable_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(TextureManager);
 };
 
 }  // namespace gles2
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_TEXTURE_MANAGER_H_