1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef UI_GL_GL_SURFACE_OSMESA_H_ 6 #define UI_GL_GL_SURFACE_OSMESA_H_ 7 8 #include "base/memory/scoped_ptr.h" 9 #include "ui/gfx/size.h" 10 #include "ui/gl/gl_surface.h" 11 12 namespace gfx { 13 14 // A surface that the Mesa software renderer draws to. This is actually just a 15 // buffer in system memory. GetHandle returns a pointer to the buffer. These 16 // surfaces can be resized and resizing preserves the contents. 17 class GL_EXPORT GLSurfaceOSMesa : public GLSurface { 18 public: 19 GLSurfaceOSMesa(unsigned format, const gfx::Size& size); 20 21 // Implement GLSurface. 22 virtual bool Initialize() OVERRIDE; 23 virtual void Destroy() OVERRIDE; 24 virtual bool Resize(const gfx::Size& new_size) OVERRIDE; 25 virtual bool IsOffscreen() OVERRIDE; 26 virtual bool SwapBuffers() OVERRIDE; 27 virtual gfx::Size GetSize() OVERRIDE; 28 virtual void* GetHandle() OVERRIDE; 29 virtual unsigned GetFormat() OVERRIDE; 30 31 protected: 32 virtual ~GLSurfaceOSMesa(); 33 34 private: 35 unsigned format_; 36 gfx::Size size_; 37 scoped_ptr<int32[]> buffer_; 38 39 DISALLOW_COPY_AND_ASSIGN(GLSurfaceOSMesa); 40 }; 41 42 } // namespace gfx 43 44 #endif // UI_GL_GL_SURFACE_OSMESA_H_ 45