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/** OpenGLPlugin.hh file for the fluxbox compositor. */
// Copyright (c) 2011 Gediminas Liktaras (gliktaras at gmail dot com)
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
#ifndef FBCOMPOSITOR_OPENGLPLUGIN_HH
#define FBCOMPOSITOR_OPENGLPLUGIN_HH
#include "BasePlugin.hh"
#include "OpenGLResources.hh"
#include "OpenGLShaders.hh"
#include "FbTk/FbString.hh"
#include <GL/glew.h>
#include <GL/gl.h>
#include <X11/Xlib.h>
#include <vector>
namespace FbCompositor {
class BaseScreen;
class OpenGLScreen;
class OpenGLWindow;
//--- RENDERING JOB INFORMATION --------------------------------------------
/**
* Information about an extra rendering job.
*/
struct OpenGLRenderingJob {
OpenGLBufferPtr prim_pos_buffer; ///< Primitive's position buffer.
OpenGLBufferPtr main_tex_coord_buffer; ///< Main texture's position buffer.
OpenGLBufferPtr shape_tex_coord_buffer; ///< Shape texture's position buffer.
OpenGL2DTexturePtr main_texture; ///< Main texture.
OpenGL2DTexturePtr shape_texture; ///< Shape texture.
GLfloat alpha; ///< Rendering's alpha.
OpenGLShaderInitializer *shader_init; ///< Shader initializer.
OpenGLShaderDeinitializer *shader_deinit; ///< Shader deinitializer.
};
//--- OPENGL PLUGIN BASE CLASS ---------------------------------------------
/**
* Plugin for OpenGL renderer.
*/
class OpenGLPlugin : public BasePlugin {
public :
//--- CONSTRUCTORS AND DESTRUCTORS -------------------------------------
/** Constructor. */
OpenGLPlugin(const BaseScreen &screen, const std::vector<FbTk::FbString> &args);
/** Destructor. */
virtual ~OpenGLPlugin();
//--- OTHER INITIALIZATION ---------------------------------------------
/** Initialize OpenGL-specific code. */
virtual void initOpenGL(OpenGLShaderProgramPtr shader_program);
//--- ACCESSORS --------------------------------------------------------
/** \returns the screen object, cast into the correct class. */
const OpenGLScreen &openGLScreen() const;
/** \returns the additional source code for the fragment shader. */
virtual const char *fragmentShader() const = 0;
/** \returns the additional source code for the vertex shader. */
virtual const char *vertexShader() const = 0;
//--- RENDERING ACTIONS ------------------------------------------------
/** Background rendering initialization. */
virtual void backgroundRenderInit(int part_id);
/** Background rendering cleanup. */
virtual void backgroundRenderCleanup(int part_id);
/** Post background rendering actions. */
virtual const std::vector<OpenGLRenderingJob> &postBackgroundRenderActions();
/** Pre window rendering actions and jobs. */
virtual const std::vector<OpenGLRenderingJob> &preWindowRenderActions(const OpenGLWindow &window);
/** Window rendering initialization. */
virtual void windowRenderInit(const OpenGLWindow &window, int part_id);
/** Window rendering cleanup. */
virtual void windowRenderCleanup(const OpenGLWindow &window, int part_id);
/** Post window rendering actions and jobs. */
virtual const std::vector<OpenGLRenderingJob> &postWindowRenderActions(const OpenGLWindow &window);
/** Reconfigure rectangle rendering initialization. */
virtual void recRectRenderInit(const XRectangle &rec_rect);
/** Reconfigure rectangle rendering cleanup. */
virtual void recRectRenderCleanup(const XRectangle &rec_rect);
/** Extra rendering actions and jobs. */
virtual const std::vector<OpenGLRenderingJob> &extraRenderingActions();
/** Post extra rendering actions. */
virtual void postExtraRenderingActions();
/** Null rendering job initialization. */
virtual void nullRenderInit();
};
}
#endif // FBCOMPOSITOR_OPENGLPLUGIN_HH
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