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lxdream.org :: lxdream/src/drivers/video_gl.h
lxdream 0.9.1
released Jun 29
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filename src/drivers/video_gl.h
changeset 669:ab344e42bca9
prev662:7c8b88493ee1
next736:a02d1475ccfd
author nkeynes
date Mon May 12 10:00:13 2008 +0000 (12 years ago)
permissions -rw-r--r--
last change Cleanup most of the -Wall warnings (getting a bit sloppy...)
Convert FP code to use fixed banks rather than indirect pointer
(3-4% faster this way now)
file annotate diff log raw
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/**
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 * $Id$
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 *
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 * Common GL code that doesn't depend on a specific implementation
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 *
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 * Copyright (c) 2005 Nathan Keynes.
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; either version 2 of the License, or
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 * (at your option) any later version.
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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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#ifndef video_gl_common_H
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#define video_gl_common_H
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/**
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 * Generic GL routine to draw the given frame buffer into a texture
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 */
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gboolean gl_load_frame_buffer( frame_buffer_t frame, int tex_id );
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/**
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 * Reset the GL state to its initial values
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 */
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void gl_reset_state();
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/**
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 * Generic GL routine to blank the display view with the specified colour.
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 */
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void gl_display_blank( uint32_t colour );
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/**
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 * Write a rectangular texture (GL_TEXTURE_RECTANGLE_ARB) to the display frame
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 */
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void gl_display_render_buffer( render_buffer_t buffer );
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/**
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 * Write a rectangular texture (GL_TEXTURE_RECTANGLE_ARB) to the display frame
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 */
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void gl_texture_window( int width, int height, int tex_id, gboolean inverted );
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/**
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 * Generic GL read_render_buffer. This function assumes that the caller
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 * has already set the appropriate glReadBuffer(); in other words, unless
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 * there's only one buffer this needs to be wrapped.
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 */
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gboolean gl_read_render_buffer( unsigned char *target, render_buffer_t buffer, 
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				int rowstride, int colour_format );
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/****** FBO handling (gl_fbo.c) ******/
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gboolean gl_fbo_is_supported();
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void gl_fbo_shutdown();
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void gl_fbo_init( display_driver_t driver );
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void gl_fbo_detach();
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#endif /* !video_gl_common_H */
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