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// Copyright (c) 2010 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.
// This API is consistent with other OpenGL setup APIs like window's WGL
// and pepper's PGL. This API is used to manage OpenGL contexts in the Chrome
// renderer process in a way that is consistent with other platforms. It is
// a C style API to ease porting of existing OpenGL software to Chrome.
#ifndef CHROME_RENDERER_GGL_GGL_H_
#define CHROME_RENDERER_GGL_GGL_H_
class GpuChannelHost;
namespace ggl {
class Context;
// These are the same error codes as used by EGL.
enum Error {
SUCCESS = 0x3000,
NOT_INITIALIZED = 0x3001,
BAD_CONTEXT = 0x3006,
CONTEXT_LOST = 0x300E
};
// Initialize the GGL library. This must have completed before any other GGL
// functions are invoked.
bool Initialize();
// Terminate the GGL library. This must be called after any other GGL functions
// have completed.
bool Terminate();
// Create A GGL context for an offscreen 1 x 1 pbuffer.
Context* CreateContext(GpuChannelHost* channel);
// Set the current GGL context for the calling thread.
bool MakeCurrent(Context* context);
// Get the calling thread's current GGL context.
Context* GetCurrentContext();
// Display everything that has been rendered since the last call.
bool SwapBuffers();
// Destroy the given GGL context.
bool DestroyContext(Context* context);
// Return the current GGL error.
Error GetError();
} // namespace ggl
#endif // CHROME_RENDERER_GGL_GGL_H_
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