gpu/command_buffer/client/gles2_lib.cc

   1 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "gpu/command_buffer/client/gles2_lib.h"
   6 #include <string.h>
   7 #include "gpu/command_buffer/common/thread_local.h"
   8
   9 namespace gles2 {
  10
  11 // This is defined in gles2_c_lib_autogen.h
  12 extern "C" {
  13 extern const NameToFunc g_gles2_function_table[];
  14 }
  15
  16 // TODO(kbr): the use of this anonymous namespace core dumps the
  17 // linker on Mac OS X 10.6 when the symbol ordering file is used
  18 // namespace {
  19 static gpu::ThreadLocalKey g_gl_context_key;
  20 // }  // namespace anonymous
  21
  22 void Initialize() {
  23   g_gl_context_key = gpu::ThreadLocalAlloc();
  24 }
  25
  26 void Terminate() {
  27   gpu::ThreadLocalFree(g_gl_context_key);
  28   g_gl_context_key = 0;
  29 }
  30
  31 gpu::gles2::GLES2Interface* GetGLContext() {
  32   return static_cast<gpu::gles2::GLES2Interface*>(
  33     gpu::ThreadLocalGetValue(g_gl_context_key));
  34 }
  35
  36 void SetGLContext(gpu::gles2::GLES2Interface* context) {
  37   gpu::ThreadLocalSetValue(g_gl_context_key, context);
  38 }
  39
  40 GLES2FunctionPointer GetGLFunctionPointer(const char* name) {
  41   for (const NameToFunc* named_function = g_gles2_function_table;
  42        named_function->name;
  43        ++named_function) {
  44     if (!strcmp(name, named_function->name)) {
  45       return named_function->func;
  46     }
  47   }
  48   return NULL;
  49 }
  50
  51 }  // namespace gles2
  52
  53
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  55