1 files changed, 55 insertions, 0 deletions
diff --git a/chrome/renderer/ggl/ggl.h b/chrome/renderer/ggl/ggl.h
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+++ b/chrome/renderer/ggl/ggl.h
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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_