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Viewing changes to src/server/compositor/screencast_display_buffer.h

  • Committer: Package Import Robot
  • Author(s): Ubuntu daily release
  • Date: 2014-03-10 19:28:46 UTC
  • mto: This revision was merged to the branch mainline in revision 63.
  • Revision ID: package-import@ubuntu.com-20140310192846-rq9qm3ec26yrelo2
Tags: upstream-0.1.6+14.04.20140310
Import upstream version 0.1.6+14.04.20140310

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src/server/compositor/screencast_display_buffer.h
 
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/*
 
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 * Copyright © 2014 Canonical Ltd.
 
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 *
 
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 * This program is free software: you can redistribute it and/or modify it
 
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 * under the terms of the GNU General Public License version 3,
 
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 * as published by the Free Software Foundation.
 
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 *
 
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 * This program is distributed in the hope that it will be useful,
 
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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 * GNU General Public License for more details.
 
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 *
 
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 * You should have received a copy of the GNU General Public License
 
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 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
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 *
 
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 * Authored by: Alexandros Frantzis <alexandros.frantzis@canonical.com>
 
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 */
 
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#ifndef MIR_COMPOSITOR_SCREENCAST_DISPLAY_BUFFER_H_
 
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#define MIR_COMPOSITOR_SCREENCAST_DISPLAY_BUFFER_H_
 
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#include "mir/graphics/display_buffer.h"
 
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#include <GLES2/gl2.h>
 
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namespace mir
 
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{
 
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namespace compositor
 
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{
 
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namespace detail
 
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{
 
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template <void (*Generate)(GLsizei,GLuint*), void (*Delete)(GLsizei,GLuint const*)>
 
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class GLResource
 
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{
 
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public:
 
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    GLResource() { Generate(1, &resource); }
 
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    ~GLResource() { Delete(1, &resource); }
 
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    operator GLuint() const { return resource; }
 
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private:
 
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    GLResource(GLResource const&) = delete;
 
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    GLResource& operator=(GLResource const&) = delete;
 
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    GLuint resource = 0;
 
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};
 
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}
 
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class ScreencastDisplayBuffer : public graphics::DisplayBuffer
 
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{
 
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public:
 
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    ScreencastDisplayBuffer(
 
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        geometry::Rectangle const& rect,
 
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        graphics::Buffer& buffer);
 
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    ~ScreencastDisplayBuffer();
 
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    geometry::Rectangle view_area() const;
 
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    void make_current();
 
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    void release_current();
 
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    void render_and_post_update(
 
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        std::list<std::shared_ptr<graphics::Renderable>> const&,
 
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        std::function<void(graphics::Renderable const&)> const&);
 
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    void post_update();
 
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    bool can_bypass() const;
 
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    MirOrientation orientation() const;
 
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private:
 
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    geometry::Rectangle const rect;
 
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    graphics::Buffer& buffer;
 
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    GLint old_fbo;
 
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    GLint old_viewport[4];
 
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    detail::GLResource<glGenTextures,glDeleteTextures> const color_tex;
 
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    detail::GLResource<glGenRenderbuffers,glDeleteRenderbuffers> const depth_rbo;
 
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    detail::GLResource<glGenFramebuffers,glDeleteFramebuffers> const fbo;
 
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};
 
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}
 
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}
 
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#endif /* MIR_COMPOSITOR_SCREENCAST_DISPLAY_BUFFER_H_ */