nkeynes@352 | 1 | /**
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nkeynes@443 | 2 | * $Id: gl_common.h,v 1.4 2007-10-13 04:01:02 nkeynes Exp $
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nkeynes@352 | 3 | *
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nkeynes@352 | 4 | * Parent for all X11 display drivers.
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nkeynes@352 | 5 | *
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nkeynes@352 | 6 | * Copyright (c) 2005 Nathan Keynes.
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nkeynes@352 | 7 | *
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nkeynes@352 | 8 | * This program is free software; you can redistribute it and/or modify
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nkeynes@352 | 9 | * it under the terms of the GNU General Public License as published by
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nkeynes@352 | 10 | * the Free Software Foundation; either version 2 of the License, or
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nkeynes@352 | 11 | * (at your option) any later version.
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nkeynes@352 | 12 | *
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nkeynes@352 | 13 | * This program is distributed in the hope that it will be useful,
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nkeynes@352 | 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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nkeynes@352 | 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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nkeynes@352 | 16 | * GNU General Public License for more details.
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nkeynes@352 | 17 | */
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nkeynes@352 | 18 |
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nkeynes@352 | 19 | #ifndef video_gl_common_H
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nkeynes@352 | 20 | #define video_gl_common_H
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nkeynes@352 | 21 |
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nkeynes@352 | 22 | #include "display.h"
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nkeynes@352 | 23 |
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nkeynes@352 | 24 | /**
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nkeynes@352 | 25 | * Test if a specific extension is supported. From opengl.org
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nkeynes@352 | 26 | * @param extension extension name to check for
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nkeynes@352 | 27 | * @return TRUE if supported, otherwise FALSE.
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nkeynes@352 | 28 | */
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nkeynes@352 | 29 | gboolean isGLExtensionSupported( const char *extension );
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nkeynes@352 | 30 |
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nkeynes@352 | 31 | gboolean hasRequiredGLExtensions();
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nkeynes@352 | 32 |
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nkeynes@352 | 33 | /**
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nkeynes@352 | 34 | * Generic GL routine to draw the given frame buffer in the display view.
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nkeynes@352 | 35 | */
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nkeynes@352 | 36 | gboolean gl_display_frame_buffer( frame_buffer_t frame );
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nkeynes@352 | 37 |
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nkeynes@352 | 38 | /**
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nkeynes@352 | 39 | * Generic GL routine to blank the display view with the specified colour.
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nkeynes@352 | 40 | */
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nkeynes@352 | 41 | gboolean gl_display_blank( uint32_t colour );
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nkeynes@352 | 42 |
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nkeynes@443 | 43 | /**
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nkeynes@443 | 44 | * Copy the frame buffer contents to the specified texture id
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nkeynes@443 | 45 | */
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nkeynes@443 | 46 | void gl_frame_buffer_to_tex_rectangle( frame_buffer_t frame, GLuint texid );
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nkeynes@443 | 47 |
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nkeynes@443 | 48 | /**
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nkeynes@443 | 49 | * Write a rectangular texture (GL_TEXTURE_RECTANGLE_ARB) to the display frame
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nkeynes@443 | 50 | */
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nkeynes@443 | 51 | void gl_display_tex_rectangle( GLuint texid, uint32_t texwidth, uint32_t texheight, gboolean invert );
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nkeynes@443 | 52 |
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nkeynes@443 | 53 | /**
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nkeynes@443 | 54 | * Redisplay the last frame.
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nkeynes@443 | 55 | */
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nkeynes@443 | 56 | void gl_redisplay_last();
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nkeynes@352 | 57 |
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nkeynes@352 | 58 | /**
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nkeynes@352 | 59 | * Generic GL read_render_buffer. This function assumes that the caller
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nkeynes@352 | 60 | * has already set the appropriate glReadBuffer(); in other words, unless
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nkeynes@352 | 61 | * there's only one buffer this needs to be wrapped.
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nkeynes@352 | 62 | */
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nkeynes@429 | 63 | gboolean gl_read_render_buffer( render_buffer_t buffer, unsigned char *target );
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nkeynes@352 | 64 |
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nkeynes@352 | 65 |
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nkeynes@352 | 66 | /****** FBO handling (gl_fbo.c) ******/
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nkeynes@352 | 67 | gboolean gl_fbo_is_supported();
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nkeynes@352 | 68 | void gl_fbo_shutdown();
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nkeynes@352 | 69 | void gl_fbo_init( display_driver_t driver );
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nkeynes@352 | 70 |
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nkeynes@405 | 71 | /****** Shader handling (gl_sl.c) *****/
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nkeynes@405 | 72 | gboolean glsl_is_supported(void);
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nkeynes@405 | 73 | gboolean glsl_load_shaders( const char *vert_shader, const char *frag_shader );
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nkeynes@405 | 74 | void glsl_unload_shaders(void);
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nkeynes@405 | 75 |
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nkeynes@405 | 76 | extern const char *glsl_vertex_shader_src;
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nkeynes@405 | 77 | extern const char *glsl_fragment_shader_src;
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nkeynes@405 | 78 |
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nkeynes@352 | 79 | #endif /* !video_gl_common_H */
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