mojo/gles2/gles2_impl.cc

   1 // Copyright 2014 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 "mojo/public/c/gles2/gles2.h"
   6
   7 #include "base/lazy_instance.h"
   8 #include "base/threading/thread_local.h"
   9 #include "gpu/GLES2/gl2extchromium.h"
  10 #include "gpu/command_buffer/client/gles2_interface.h"
  11 #include "mojo/gles2/gles2_context.h"
  12 #include "mojo/gles2/gles2_impl_export.h"
  13
  14 using mojo::gles2::GLES2Context;
  15
  16 namespace {
  17
  18 base::LazyInstance<base::ThreadLocalPointer<gpu::gles2::GLES2Interface> >::Leaky
  19     g_gpu_interface;
  20
  21 }  // namespace
  22
  23 extern "C" {
  24 MojoGLES2Context MojoGLES2CreateContext(MojoHandle handle,
  25                                         MojoGLES2ContextLost lost_callback,
  26                                         void* closure,
  27                                         const MojoAsyncWaiter* async_waiter) {
  28   mojo::MessagePipeHandle mph(handle);
  29   mojo::ScopedMessagePipeHandle scoped_handle(mph);
  30   scoped_ptr<GLES2Context> client(new GLES2Context(
  31       async_waiter, scoped_handle.Pass(), lost_callback, closure));
  32   if (!client->Initialize())
  33     client.reset();
  34   return client.release();
  35 }
  36
  37 void MojoGLES2DestroyContext(MojoGLES2Context context) {
  38   delete static_cast<GLES2Context*>(context);
  39 }
  40
  41 void MojoGLES2MakeCurrent(MojoGLES2Context context) {
  42   gpu::gles2::GLES2Interface* interface = NULL;
  43   if (context) {
  44     GLES2Context* client = static_cast<GLES2Context*>(context);
  45     interface = client->interface();
  46     DCHECK(interface);
  47   }
  48   g_gpu_interface.Get().Set(interface);
  49 }
  50
  51 void MojoGLES2SwapBuffers() {
  52   DCHECK(g_gpu_interface.Get().Get());
  53   g_gpu_interface.Get().Get()->SwapBuffers();
  54 }
  55
  56 void* MojoGLES2GetGLES2Interface(MojoGLES2Context context) {
  57   return static_cast<GLES2Context*>(context)->interface();
  58 }
  59
  60 void* MojoGLES2GetContextSupport(MojoGLES2Context context) {
  61   return static_cast<GLES2Context*>(context)->context_support();
  62 }
  63
  64 #define VISIT_GL_CALL(Function, ReturnType, PARAMETERS, ARGUMENTS) \
  65   ReturnType gl##Function PARAMETERS {                             \
  66     DCHECK(g_gpu_interface.Get().Get());                           \
  67     return g_gpu_interface.Get().Get()->Function ARGUMENTS;        \
  68   }
  69 #include "mojo/public/c/gles2/gles2_call_visitor_autogen.h"
  70 #include "mojo/public/c/gles2/gles2_call_visitor_chromium_sync_point_autogen.h"
  71 #include "mojo/public/c/gles2/gles2_call_visitor_chromium_texture_mailbox_autogen.h"
  72 #undef VISIT_GL_CALL
  73
  74 }  // extern "C"