filename | src/drivers/video_gl.h |
changeset | 854:130928a3cdcb |
prev | 736:a02d1475ccfd |
next | 1159:580436b01b6c |
author | nkeynes |
date | Wed Oct 29 23:51:58 2008 +0000 (15 years ago) |
permissions | -rw-r--r-- |
last change | Use regparam calling conventions for all functions called from translated code, along with a few other high-use functions. Can probably extend this to all functions, but as it is this is a nice performance boost |
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nkeynes@635 | 1 | /** |
nkeynes@635 | 2 | * $Id$ |
nkeynes@635 | 3 | * |
nkeynes@662 | 4 | * Common GL code that doesn't depend on a specific implementation |
nkeynes@635 | 5 | * |
nkeynes@635 | 6 | * Copyright (c) 2005 Nathan Keynes. |
nkeynes@635 | 7 | * |
nkeynes@635 | 8 | * This program is free software; you can redistribute it and/or modify |
nkeynes@635 | 9 | * it under the terms of the GNU General Public License as published by |
nkeynes@635 | 10 | * the Free Software Foundation; either version 2 of the License, or |
nkeynes@635 | 11 | * (at your option) any later version. |
nkeynes@635 | 12 | * |
nkeynes@635 | 13 | * This program is distributed in the hope that it will be useful, |
nkeynes@635 | 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
nkeynes@635 | 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
nkeynes@635 | 16 | * GNU General Public License for more details. |
nkeynes@635 | 17 | */ |
nkeynes@635 | 18 | |
nkeynes@736 | 19 | #ifndef lxdream_video_gl_H |
nkeynes@736 | 20 | #define lxdream_video_gl_H 1 |
nkeynes@736 | 21 | |
nkeynes@736 | 22 | #ifdef __cplusplus |
nkeynes@736 | 23 | extern "C" { |
nkeynes@736 | 24 | #endif |
nkeynes@635 | 25 | |
nkeynes@635 | 26 | /** |
nkeynes@635 | 27 | * Generic GL routine to draw the given frame buffer into a texture |
nkeynes@635 | 28 | */ |
nkeynes@635 | 29 | gboolean gl_load_frame_buffer( frame_buffer_t frame, int tex_id ); |
nkeynes@635 | 30 | |
nkeynes@635 | 31 | /** |
nkeynes@669 | 32 | * Reset the GL state to its initial values |
nkeynes@669 | 33 | */ |
nkeynes@669 | 34 | void gl_reset_state(); |
nkeynes@669 | 35 | |
nkeynes@669 | 36 | /** |
nkeynes@635 | 37 | * Generic GL routine to blank the display view with the specified colour. |
nkeynes@635 | 38 | */ |
nkeynes@669 | 39 | void gl_display_blank( uint32_t colour ); |
nkeynes@635 | 40 | |
nkeynes@635 | 41 | /** |
nkeynes@635 | 42 | * Write a rectangular texture (GL_TEXTURE_RECTANGLE_ARB) to the display frame |
nkeynes@635 | 43 | */ |
nkeynes@635 | 44 | void gl_display_render_buffer( render_buffer_t buffer ); |
nkeynes@635 | 45 | |
nkeynes@635 | 46 | /** |
nkeynes@635 | 47 | * Write a rectangular texture (GL_TEXTURE_RECTANGLE_ARB) to the display frame |
nkeynes@635 | 48 | */ |
nkeynes@635 | 49 | void gl_texture_window( int width, int height, int tex_id, gboolean inverted ); |
nkeynes@635 | 50 | |
nkeynes@635 | 51 | /** |
nkeynes@854 | 52 | * Convert window coordinates to dreamcast device coords (640x480) using the |
nkeynes@854 | 53 | * same viewable area as gl_texture_window. |
nkeynes@854 | 54 | * If the coordinates are outside the viewable area, the result is -1,-1. |
nkeynes@854 | 55 | */ |
nkeynes@854 | 56 | void gl_window_to_system_coords( int *x, int *y ); |
nkeynes@854 | 57 | |
nkeynes@854 | 58 | /** |
nkeynes@635 | 59 | * Generic GL read_render_buffer. This function assumes that the caller |
nkeynes@635 | 60 | * has already set the appropriate glReadBuffer(); in other words, unless |
nkeynes@635 | 61 | * there's only one buffer this needs to be wrapped. |
nkeynes@635 | 62 | */ |
nkeynes@635 | 63 | gboolean gl_read_render_buffer( unsigned char *target, render_buffer_t buffer, |
nkeynes@736 | 64 | int rowstride, int colour_format ); |
nkeynes@635 | 65 | |
nkeynes@635 | 66 | |
nkeynes@635 | 67 | /****** FBO handling (gl_fbo.c) ******/ |
nkeynes@635 | 68 | gboolean gl_fbo_is_supported(); |
nkeynes@635 | 69 | void gl_fbo_shutdown(); |
nkeynes@635 | 70 | void gl_fbo_init( display_driver_t driver ); |
nkeynes@635 | 71 | void gl_fbo_detach(); |
nkeynes@635 | 72 | |
nkeynes@736 | 73 | #ifdef __cplusplus |
nkeynes@736 | 74 | } |
nkeynes@736 | 75 | #endif |
nkeynes@736 | 76 | |
nkeynes@736 | 77 | #endif /* !lxdream_video_gl_H */ |
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