Fix search results being clipped in app list.
[chromium-blink-merge.git] / ui / gl / gl_surface_osmesa.h
blobcd65e650293a1a50b632d450609e588117f9df97
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.
5 #ifndef UI_GL_GL_SURFACE_OSMESA_H_
6 #define UI_GL_GL_SURFACE_OSMESA_H_
8 #include "base/memory/scoped_ptr.h"
9 #include "ui/gfx/geometry/size.h"
10 #include "ui/gl/gl_surface.h"
12 namespace gfx {
14 enum OSMesaSurfaceFormat { OSMesaSurfaceFormatBGRA, OSMesaSurfaceFormatRGBA };
16 // A surface that the Mesa software renderer draws to. This is actually just a
17 // buffer in system memory. GetHandle returns a pointer to the buffer. These
18 // surfaces can be resized and resizing preserves the contents.
19 class GL_EXPORT GLSurfaceOSMesa : public GLSurface {
20 public:
21 GLSurfaceOSMesa(OSMesaSurfaceFormat format, const gfx::Size& size);
23 // Implement GLSurface.
24 bool Initialize() override;
25 void Destroy() override;
26 bool Resize(const gfx::Size& new_size) override;
27 bool IsOffscreen() override;
28 bool SwapBuffers() override;
29 gfx::Size GetSize() override;
30 void* GetHandle() override;
31 unsigned GetFormat() override;
33 protected:
34 ~GLSurfaceOSMesa() override;
36 private:
37 unsigned format_;
38 gfx::Size size_;
39 scoped_ptr<int32[]> buffer_;
41 DISALLOW_COPY_AND_ASSIGN(GLSurfaceOSMesa);
44 // A thin subclass of |GLSurfaceOSMesa| that can be used in place
45 // of a native hardware-provided surface when a native surface
46 // provider is not available.
47 class GLSurfaceOSMesaHeadless : public GLSurfaceOSMesa {
48 public:
49 explicit GLSurfaceOSMesaHeadless();
51 bool IsOffscreen() override;
52 bool SwapBuffers() override;
54 protected:
55 ~GLSurfaceOSMesaHeadless() override;
57 private:
58 DISALLOW_COPY_AND_ASSIGN(GLSurfaceOSMesaHeadless);
61 } // namespace gfx
63 #endif // UI_GL_GL_SURFACE_OSMESA_H_