1 files changed, 123 insertions, 0 deletions
diff --git a/platform/nacl/opengl_context.cpp b/platform/nacl/opengl_context.cpp
new file mode 100644
index 0000000000..8dafe959a3
--- /dev/null
+++ b/platform/nacl/opengl_context.cpp
@@ -0,0 +1,123 @@
+/*************************************************************************/
+/*  opengl_context.cpp                                                   */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                    http://www.godotengine.org                         */
+/*************************************************************************/
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                 */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+#include "opengl_context.h"
+
+#include <pthread.h>
+#include "ppapi/gles2/gl2ext_ppapi.h"
+#include "os_nacl.h"
+#include "ppapi/cpp/instance.h"
+#include "ppapi/cpp/module.h"
+#include "ppapi/cpp/completion_callback.h"
+#include "ppapi/utility/completion_callback_factory.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<OpenGLContext*>(data)->set_flush_pending(false);
+  static_cast<OpenGLContext*>(data)->FlushContext();
+}
+}  // namespace
+
+OpenGLContext::OpenGLContext(pp::Instance* p_instance)
+	: pp::Graphics3DClient(p_instance),
+      flush_pending_(false) {
+
+  instance = p_instance;
+  pp::Module* module = pp::Module::Get();
+  assert(module);
+  gles2_interface_ = static_cast<const struct PPB_OpenGLES2_Dev*>(
+	  module->GetBrowserInterface(PPB_OPENGLES2_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()) {
+	int32_t attribs[] = {
+		PP_GRAPHICS3DATTRIB_ALPHA_SIZE, 8,
+		PP_GRAPHICS3DATTRIB_DEPTH_SIZE, 24,
+		PP_GRAPHICS3DATTRIB_STENCIL_SIZE, 8,
+		PP_GRAPHICS3DATTRIB_SAMPLES, 0,
+		PP_GRAPHICS3DATTRIB_SAMPLE_BUFFERS, 0,
+		PP_GRAPHICS3DATTRIB_WIDTH, width,
+		PP_GRAPHICS3DATTRIB_HEIGHT, height,
+		PP_GRAPHICS3DATTRIB_NONE
+	};
+
+	context_ = pp::Graphics3D(instance, pp::Graphics3D(), attribs);
+	if (context_.is_null()) {
+      glSetCurrentContextPPAPI(0);
+      return false;
+    }
+	instance->BindGraphics(context_);
+  }
+  glSetCurrentContextPPAPI(context_.pp_resource());
+  return true;
+}
+
+void OpenGLContext::ResizeContext(const pp::Size& size) {
+
+	width = size.width();
+	height = size.height();
+
+	if (!context_.is_null()) {
+		context_.ResizeBuffers(size.width(), size.height());
+	}
+}
+
+
+void OpenGLContext::InvalidateContext(pp::Instance* instance) {
+  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);
+
+	OSNacl* os = (OSNacl*)OS::get_singleton();
+	MakeContextCurrent(instance);
+	os->iterate();
+
+  context_.SwapBuffers(pp::CompletionCallback(&FlushCallback, this));
+}
+