Make the fuchsia mojo/public repo the source of truth.

mojo/public/platform/nacl/mgl_irt.cc

-// Copyright 2015 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/platform/nacl/mgl_irt.h"
-#include "native_client/src/untrusted/irt/irt.h"
-
-namespace {
-
-bool g_irt_mgl_valid = false;
-struct nacl_irt_mgl g_irt_mgl;
-
-struct nacl_irt_mgl* GetIrtMGL() {
-  if (!g_irt_mgl_valid) {
-    size_t rc = nacl_interface_query(NACL_IRT_MGL_v0_1, &g_irt_mgl,
-                                     sizeof(g_irt_mgl));
-    if (rc != sizeof(g_irt_mgl))
-      return nullptr;
-    g_irt_mgl_valid = true;
-  }
-  return &g_irt_mgl;
-}
-
-bool g_irt_mgl_onscreen_valid = false;
-struct nacl_irt_mgl_onscreen g_irt_mgl_onscreen;
-
-struct nacl_irt_mgl_onscreen* GetIrtMGLOnScreen() {
-  if (!g_irt_mgl_onscreen_valid) {
-    size_t rc = nacl_interface_query(NACL_IRT_MGL_ONSCREEN_v0_1,
-                                     &g_irt_mgl_onscreen,
-                                     sizeof(g_irt_mgl_onscreen));
-    if (rc != sizeof(g_irt_mgl_onscreen))
-      return nullptr;
-    g_irt_mgl_onscreen_valid = true;
-  }
-  return &g_irt_mgl_onscreen;
-}
-
-bool g_irt_mgl_signal_sync_point_valid = false;
-struct nacl_irt_mgl_signal_sync_point g_irt_mgl_signal_sync_point;
-
-struct nacl_irt_mgl_signal_sync_point* GetIrtMGLSignalSyncPoint() {
-  if (!g_irt_mgl_signal_sync_point_valid) {
-    size_t rc = nacl_interface_query(NACL_IRT_MGL_SIGNAL_SYNC_POINT_v0_1,
-                                     &g_irt_mgl_signal_sync_point,
-                                     sizeof(g_irt_mgl_signal_sync_point));
-    if (rc != sizeof(g_irt_mgl_signal_sync_point))
-      return nullptr;
-    g_irt_mgl_signal_sync_point_valid = true;
-  }
-  return &g_irt_mgl_signal_sync_point;
-}
-
-}
-
-MGLContext MGLCreateContext(MGLOpenGLAPIVersion version,
-                            MojoHandle command_buffer_handle,
-                            MGLContext share_group,
-                            MGLContextLostCallback lost_callback,
-                            void* lost_callback_closure,
-                            const struct MojoAsyncWaiter* async_waiter) {
-  struct nacl_irt_mgl* irt_mgl = GetIrtMGL();
-  if (!irt_mgl)
-    return MGL_NO_CONTEXT;
-  return irt_mgl->MGLCreateContext(version,
-                                   command_buffer_handle,
-                                   share_group,
-                                   lost_callback,
-                                   lost_callback_closure,
-                                   async_waiter);
-}
-
-void MGLDestroyContext(MGLContext context) {
-  struct nacl_irt_mgl* irt_mgl = GetIrtMGL();
-  if (irt_mgl)
-    irt_mgl->MGLDestroyContext(context);
-}
-
-void MGLMakeCurrent(MGLContext context) {
-  struct nacl_irt_mgl* irt_mgl = GetIrtMGL();
-  if (irt_mgl)
-    irt_mgl->MGLMakeCurrent(context);
-}
-
-MGLContext MGLGetCurrentContext(void) {
-  struct nacl_irt_mgl* irt_mgl = GetIrtMGL();
-  if (!irt_mgl)
-    return MGL_NO_CONTEXT;
-  return irt_mgl->MGLGetCurrentContext();
-}
-
-MGLMustCastToProperFunctionPointerType MGLGetProcAddress(const char* name) {
-  struct nacl_irt_mgl* irt_mgl = GetIrtMGL();
-  if (!irt_mgl)
-    return nullptr;
-  return irt_mgl->MGLGetProcAddress(name);
-}
-
-void MGLResizeSurface(uint32_t width, uint32_t height) {
-  struct nacl_irt_mgl_onscreen* irt_mgl_onscreen = GetIrtMGLOnScreen();
-  if (irt_mgl_onscreen)
-    irt_mgl_onscreen->MGLResizeSurface(width, height);
-}
-
-void MGLSwapBuffers(void) {
-  struct nacl_irt_mgl_onscreen* irt_mgl_onscreen = GetIrtMGLOnScreen();
-  if (irt_mgl_onscreen)
-    irt_mgl_onscreen->MGLSwapBuffers();
-}
-
-void MGLSignalSyncPoint(uint32_t sync_point,
-                        MGLSignalSyncPointCallback callback,
-                        void* closure) {
-  struct nacl_irt_mgl_signal_sync_point *irt_mgl_signal_sync_point =
-      GetIrtMGLSignalSyncPoint();
-  if (irt_mgl_signal_sync_point)
-    irt_mgl_signal_sync_point->MGLSignalSyncPoint(
-        sync_point, callback, closure);
-}