1 files changed, 54 insertions, 0 deletions
diff --git a/ui/gfx/gl/gl_context_osmesa.h b/ui/gfx/gl/gl_context_osmesa.h
new file mode 100644
index 0000000..77ca820
--- /dev/null
+++ b/ui/gfx/gl/gl_context_osmesa.h
@@ -0,0 +1,54 @@
+// Copyright (c) 2011 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.
+
+#ifndef UI_GFX_GL_GL_CONTEXT_OSMESA_H_
+#define UI_GFX_GL_GL_CONTEXT_OSMESA_H_
+#pragma once
+
+#include "base/memory/scoped_ptr.h"
+#include "ui/gfx/gl/gl_context.h"
+#include "ui/gfx/size.h"
+
+typedef struct osmesa_context *OSMesaContext;
+
+namespace gfx {
+
+// Encapsulates an OSMesa OpenGL context that uses software rendering.
+class OSMesaGLContext : public GLContext {
+ public:
+  OSMesaGLContext();
+  virtual ~OSMesaGLContext();
+
+  // Initialize an OSMesa GL context with the default 1 x 1 initial size.
+  bool Initialize(GLuint format, GLContext* shared_context);
+
+  // Resize the back buffer, preserving the old content. Does nothing if the
+  // size is unchanged.
+  void Resize(const gfx::Size& new_size);
+
+  const void* buffer() const {
+    return buffer_.get();
+  }
+
+  // Implement GLContext.
+  virtual void Destroy();
+  virtual bool MakeCurrent();
+  virtual bool IsCurrent();
+  virtual bool IsOffscreen();
+  virtual bool SwapBuffers();
+  virtual gfx::Size GetSize();
+  virtual void* GetHandle();
+  virtual void SetSwapInterval(int interval);
+
+ private:
+  gfx::Size size_;
+  scoped_array<int32> buffer_;
+  OSMesaContext context_;
+
+  DISALLOW_COPY_AND_ASSIGN(OSMesaGLContext);
+};
+
+}  // namespace gfx
+
+#endif  // UI_GFX_GL_GL_CONTEXT_OSMESA_H_