src/mojo/gles2/gles2_support_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/gles2/gles2_support_impl.h"
   6
   7 #include "base/lazy_instance.h"
   8 #include "gpu/command_buffer/client/gles2_interface.h"
   9 #include "mojo/gles2/gles2_context.h"
  10 #include "mojo/public/gles2/gles2_interface.h"
  11 #include "mojo/public/gles2/gles2_private.h"
  12
  13 namespace mojo {
  14 namespace gles2 {
  15
  16 namespace {
  17
  18 class GLES2ImplForCommandBuffer : public GLES2Interface {
  19  public:
  20   GLES2ImplForCommandBuffer() : gpu_interface_(NULL) {}
  21
  22   void set_gpu_interface(gpu::gles2::GLES2Interface* gpu_interface) {
  23     gpu_interface_ = gpu_interface;
  24   }
  25   gpu::gles2::GLES2Interface* gpu_interface() const { return gpu_interface_; }
  26
  27 #define VISIT_GL_CALL(Function, ReturnType, PARAMETERS, ARGUMENTS) \
  28   virtual ReturnType Function PARAMETERS OVERRIDE {                \
  29     return gpu_interface_->Function ARGUMENTS;                     \
  30   }
  31 #include "mojo/public/gles2/gles2_call_visitor_autogen.h"
  32 #undef VISIT_GL_CALL
  33
  34  private:
  35   gpu::gles2::GLES2Interface* gpu_interface_;
  36   DISALLOW_COPY_AND_ASSIGN(GLES2ImplForCommandBuffer);
  37 };
  38
  39 base::LazyInstance<GLES2ImplForCommandBuffer> g_gles2_interface =
  40     LAZY_INSTANCE_INITIALIZER;
  41
  42 }  // anonymous namespace
  43
  44 GLES2SupportImpl::GLES2SupportImpl() : async_waiter_(NULL) {}
  45 GLES2SupportImpl::~GLES2SupportImpl() {}
  46
  47 // static
  48 void GLES2SupportImpl::Init() { GLES2Support::Init(new GLES2SupportImpl()); }
  49
  50 void GLES2SupportImpl::Initialize(MojoAsyncWaiter* async_waiter) {
  51   DCHECK(!async_waiter_);
  52   DCHECK(async_waiter);
  53   async_waiter_ = async_waiter;
  54 }
  55
  56 void GLES2SupportImpl::Terminate() {
  57   DCHECK(async_waiter_);
  58   async_waiter_ = NULL;
  59 }
  60
  61 MojoGLES2Context GLES2SupportImpl::CreateContext(
  62     MessagePipeHandle handle,
  63     MojoGLES2ContextLost lost_callback,
  64     MojoGLES2DrawAnimationFrame animation_callback,
  65     void* closure) {
  66   ScopedCommandBufferHandle scoped_handle(CommandBufferHandle(handle.value()));
  67   scoped_ptr<GLES2Context> client(new GLES2Context(async_waiter_,
  68                                                    scoped_handle.Pass(),
  69                                                    lost_callback,
  70                                                    animation_callback,
  71                                                    closure));
  72   if (!client->Initialize())
  73     client.reset();
  74   return client.release();
  75 }
  76
  77 void GLES2SupportImpl::DestroyContext(MojoGLES2Context context) {
  78   delete static_cast<GLES2Context*>(context);
  79 }
  80
  81 void GLES2SupportImpl::MakeCurrent(MojoGLES2Context context) {
  82   gpu::gles2::GLES2Interface* interface = NULL;
  83   if (context) {
  84     GLES2Context* client = static_cast<GLES2Context*>(context);
  85     interface = client->interface();
  86     DCHECK(interface);
  87   }
  88   g_gles2_interface.Get().set_gpu_interface(interface);
  89 }
  90
  91 void GLES2SupportImpl::SwapBuffers() {
  92   g_gles2_interface.Get().gpu_interface()->SwapBuffers();
  93 }
  94
  95 void GLES2SupportImpl::RequestAnimationFrames(MojoGLES2Context context) {
  96   static_cast<GLES2Context*>(context)->RequestAnimationFrames();
  97 }
  98
  99 void GLES2SupportImpl::CancelAnimationFrames(MojoGLES2Context context) {
 100   static_cast<GLES2Context*>(context)->CancelAnimationFrames();
 101 }
 102
 103 void* GLES2SupportImpl::GetGLES2Interface(MojoGLES2Context context) {
 104   return static_cast<GLES2Context*>(context)->interface();
 105 }
 106
 107 void* GLES2SupportImpl::GetContextSupport(MojoGLES2Context context) {
 108   return static_cast<GLES2Context*>(context)->context_support();
 109 }
 110
 111 GLES2Interface* GLES2SupportImpl::GetGLES2InterfaceForCurrentContext() {
 112   return &g_gles2_interface.Get();
 113 }
 114
 115 }  // namespace gles2
 116 }  // namespace mojo