// Copyright 2014 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 "mojo/public/gles2/gles2_private.h"

#include <assert.h>
#include <stddef.h>

#include "mojo/public/c/gles2/gles2.h"
#include "mojo/public/gles2/gles2_interface.h"

static mojo::GLES2Support* g_gles2_support = NULL;
static mojo::GLES2Interface* g_gles2_interface = NULL;

extern "C" {

void MojoGLES2Initialize(const MojoAsyncWaiter* async_waiter) {
  assert(g_gles2_support);
  return g_gles2_support->Initialize(async_waiter);
}

void MojoGLES2Terminate() {
  assert(g_gles2_support);
  return g_gles2_support->Terminate();
}

MojoGLES2Context MojoGLES2CreateContext(
    MojoHandle handle,
    MojoGLES2ContextLost lost_callback,
    MojoGLES2DrawAnimationFrame animation_callback,
    void* closure) {
  return g_gles2_support->CreateContext(mojo::MessagePipeHandle(handle),
                                        lost_callback,
                                        animation_callback,
                                        closure);
}

void MojoGLES2DestroyContext(MojoGLES2Context context) {
  return g_gles2_support->DestroyContext(context);
}

void MojoGLES2MakeCurrent(MojoGLES2Context context) {
  assert(g_gles2_support);
  g_gles2_support->MakeCurrent(context);
  g_gles2_interface = g_gles2_support->GetGLES2InterfaceForCurrentContext();
}

void MojoGLES2SwapBuffers() {
  assert(g_gles2_support);
  return g_gles2_support->SwapBuffers();
}

void MojoGLES2RequestAnimationFrames(MojoGLES2Context context) {
  assert(g_gles2_support);
  return g_gles2_support->RequestAnimationFrames(context);
}

void MojoGLES2CancelAnimationFrames(MojoGLES2Context context) {
  assert(g_gles2_support);
  return g_gles2_support->CancelAnimationFrames(context);
}

void* MojoGLES2GetGLES2Interface(MojoGLES2Context context) {
  assert(g_gles2_support);
  return g_gles2_support->GetGLES2Interface(context);
}

void* MojoGLES2GetContextSupport(MojoGLES2Context context) {
  assert(g_gles2_support);
  return g_gles2_support->GetContextSupport(context);
}

#define VISIT_GL_CALL(Function, ReturnType, PARAMETERS, ARGUMENTS) \
  ReturnType gl##Function PARAMETERS {                             \
    return g_gles2_interface->Function ARGUMENTS;                  \
  }
#include "mojo/public/c/gles2/gles2_call_visitor_autogen.h"
#undef VISIT_GL_CALL

}  // extern "C"

namespace mojo {

GLES2Support::~GLES2Support() {}

void GLES2Support::Init(GLES2Support* gles2_support) {
  assert(!g_gles2_support);
  g_gles2_support = gles2_support;
}

}  // namespace mojo