godot/platform/nacl/opengl_context.h

125 lines
4.8 KiB
C++

/*************************************************************************/
/* opengl_context.h */
/*************************************************************************/
/* 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. */
/*************************************************************************/
#ifndef EXAMPLES_TUMBLER_OPENGL_CONTEXT_H_
#define EXAMPLES_TUMBLER_OPENGL_CONTEXT_H_
///
/// @file
/// OpenGLContext manages the OpenGL context in the browser that is associated
/// with a @a pp::Instance instance.
///
#include <pthread.h>
#include <algorithm>
#include <string>
#include "ppapi/c/ppb_opengles2.h"
//#include "ppapi/cpp/dev/context_3d_dev.h"
#include "ppapi/cpp/graphics_3d_client.h"
#include "ppapi/cpp/graphics_3d.h"
//#include "ppapi/cpp/dev/surface_3d_dev.h"
#include "ppapi/cpp/instance.h"
#include "ppapi/cpp/size.h"
// A convenience wrapper for a shared OpenGLContext pointer type. As other
// smart pointer types are needed, add them here.
#include <tr1/memory>
class OpenGLContext;
typedef std::tr1::shared_ptr<OpenGLContext> SharedOpenGLContext;
/// OpenGLContext manages an OpenGL rendering context in the browser.
///
class OpenGLContext : public pp::Graphics3DClient {
public:
explicit OpenGLContext(pp::Instance* instance);
/// Release all the in-browser resources used by this context, and make this
/// context invalid.
virtual ~OpenGLContext();
/// The Graphics3DClient interfcace.
virtual void Graphics3DContextLost() {
assert(!"Unexpectedly lost graphics context");
}
/// Make @a this the current 3D context in @a instance.
/// @param instance The instance of the NaCl module that will receive the
/// the current 3D context.
/// @return success.
bool MakeContextCurrent(pp::Instance* instance);
/// Flush the contents of this context to the browser's 3D device.
void FlushContext();
/// Make the underlying 3D device invalid, so that any subsequent rendering
/// commands will have no effect. The next call to MakeContextCurrent() will
/// cause the underlying 3D device to get rebound and start receiving
/// receiving rendering commands again. Use InvalidateContext(), for
/// example, when resizing the context's viewing area.
void InvalidateContext(pp::Instance* instance);
void ResizeContext(const pp::Size& size);
/// The OpenGL ES 2.0 interface.
const struct PPB_OpenGLES2_Dev* gles2() const {
return gles2_interface_;
}
/// The PP_Resource needed to make GLES2 calls through the Pepper interface.
const PP_Resource gl_context() const {
return context_.pp_resource();
}
/// Indicate whether a flush is pending. This can only be called from the
/// main thread; it is not thread safe.
bool flush_pending() const {
return flush_pending_;
}
void set_flush_pending(bool flag) {
flush_pending_ = flag;
}
private:
pp::Graphics3D context_;
bool flush_pending_;
int width, height;
pp::Instance* instance;
const struct PPB_OpenGLES2_Dev* gles2_interface_;
};
#endif // EXAMPLES_TUMBLER_OPENGL_CONTEXT_H_