more premake4 fun and tests

Demos/NativeClient/opengl_context.cc

@@ -0,0 +1,72 @@
+// Copyright (c) 2011 The Native Client 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 "opengl_context.h"
+
+#include <pthread.h>
+#include "ppapi/gles2/gl2ext_ppapi.h"
+
+namespace {
+// This is called by the brower when the 3D context has been flushed to the
+// browser window.
+void FlushCallback(void* data, int32_t result) {
+  static_cast<tumbler::OpenGLContext*>(data)->set_flush_pending(false);
+}
+}  // namespace
+
+namespace tumbler {
+
+OpenGLContext::OpenGLContext(pp::Instance* instance)
+    : pp::Graphics3DClient_Dev(instance),
+      flush_pending_(false) {
+  pp::Module* module = pp::Module::Get();
+  assert(module);
+  gles2_interface_ = static_cast<const struct PPB_OpenGLES2_Dev*>(
+      module->GetBrowserInterface(PPB_OPENGLES2_DEV_INTERFACE));
+  assert(gles2_interface_);
+}
+
+OpenGLContext::~OpenGLContext() {
+  glSetCurrentContextPPAPI(0);
+}
+
+bool OpenGLContext::MakeContextCurrent(pp::Instance* instance) {
+  if (instance == NULL) {
+    glSetCurrentContextPPAPI(0);
+    return false;
+  }
+  // Lazily create the Pepper context.
+  if (context_.is_null()) {
+    context_ = pp::Context3D_Dev(*instance, 0, pp::Context3D_Dev(), NULL);
+    if (context_.is_null()) {
+      glSetCurrentContextPPAPI(0);
+      return false;
+    }
+    surface_ = pp::Surface3D_Dev(*instance, 0, NULL);
+    context_.BindSurfaces(surface_, surface_);
+    instance->BindGraphics(surface_);
+  }
+  glSetCurrentContextPPAPI(context_.pp_resource());
+  return true;
+}
+
+void OpenGLContext::InvalidateContext(pp::Instance* instance) {
+  if (instance == NULL)
+    return;
+  // Unbind the existing surface and re-bind to null surfaces.
+  instance->BindGraphics(pp::Surface3D_Dev());
+  context_.BindSurfaces(pp::Surface3D_Dev(), pp::Surface3D_Dev());
+  glSetCurrentContextPPAPI(0);
+}
+
+void OpenGLContext::FlushContext() {
+  if (flush_pending()) {
+    // A flush is pending so do nothing; just drop this flush on the floor.
+    return;
+  }
+  set_flush_pending(true);
+  surface_.SwapBuffers(pp::CompletionCallback(&FlushCallback, this));
+}
+}  // namespace tumbler
+