Free the resources used by a context group.

gpu/command_buffer/service/texture_manager.cc

 // Copyright (c) 2010 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/texture_manager.h"
 #include "base/bits.h"
 #include "gpu/command_buffer/common/gles2_cmd_utils.h"
 #include "gpu/command_buffer/service/context_group.h"
 #include "gpu/command_buffer/service/gles2_cmd_decoder.h"
 
@@ skipping 40 matching lines @@
     case 4:
       return GL_TEXTURE_CUBE_MAP_POSITIVE_Z;
     case 5:
       return GL_TEXTURE_CUBE_MAP_NEGATIVE_Z;
     default:
       NOTREACHED();
       return 0;
   }
 }
 
+TextureManager::~TextureManager() {
+  DCHECK(texture_infos_.empty());
+}
+
+void TextureManager::Destroy(bool have_context) {
+  while (!texture_infos_.empty()) {
+    if (have_context) {
+      TextureInfo* info = texture_infos_.begin()->second;
+      if (!info->IsDeleted()) {
+        GLuint service_id = info->service_id();
+        glDeleteTextures(1, &service_id);
+        info->MarkAsDeleted();
+      }
+    }
+    texture_infos_.erase(texture_infos_.begin());
+  }
+}
+
 bool TextureManager::TextureInfo::CanRender() const {
   if (target_ == 0 || IsDeleted()) {
     return false;
   }
   bool needs_mips = NeedsMips();
   if (npot()) {
     return !needs_mips &&
            wrap_s_ == GL_CLAMP_TO_EDGE &&
            wrap_t_ == GL_CLAMP_TO_EDGE;
   }
@@ skipping 316 matching lines @@
       return true;
     }
   }
   return false;
 }
 
 }  // namespace gles2
 }  // namespace gpu