filename | src/display.h |
changeset | 335:fb890e1814c0 |
prev | 327:00d55a462af3 |
next | 352:f0df7a6d4703 |
author | nkeynes |
date | Mon Jan 29 11:24:44 2007 +0000 (17 years ago) |
permissions | -rw-r--r-- |
last change | Get render size from the tile segment array Set near clip to just 0 rather than scanning the scene Fixup modulate RGB to force fragment alpha to 1.0 Add some debugging fprintfs |
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1 /**
2 * $Id: display.h,v 1.4 2007-01-27 12:03:53 nkeynes Exp $
3 *
4 * The PC side of the video support (responsible for actually displaying /
5 * rendering frames)
6 *
7 * Copyright (c) 2005 Nathan Keynes.
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 */
20 #ifndef dream_video_H
21 #define dream_video_H
23 #include <stdint.h>
24 #include <glib.h>
25 #include <GL/gl.h>
27 #ifdef __cplusplus
28 extern "C" {
29 #endif
31 /**
32 * Supported colour formats. Note that ARGB4444 is only ever used for texture
33 * rendering (it's not valid for display purposes).
34 */
35 #define COLFMT_ARGB1555 0
36 #define COLFMT_RGB565 1
37 #define COLFMT_ARGB4444 2
38 #define COLFMT_YUV422 3 /* 8-bit YUV (texture source only) */
39 #define COLFMT_RGB888 4 /* 24-bit RGB */
40 #define COLFMT_ARGB8888 5
41 #define COLFMT_INDEX4 6 /* 4 bit indexed colour (texture source only) */
42 #define COLFMT_INDEX8 7 /* 8-bit indexed colour (texture source only) */
43 #define COLFMT_RGB0888 8 /* 32-bit RGB */
45 struct colour_format {
46 GLint type, format, int_format;
47 int bpp;
48 };
49 extern struct colour_format colour_formats[];
51 extern int colour_format_bytes[];
53 typedef struct video_buffer {
54 uint32_t hres;
55 uint32_t vres;
56 uint32_t rowstride;
57 int colour_format;
58 gboolean line_double;
59 char *data;
60 } *video_buffer_t;
62 /**
63 * Core video driver - expected to directly support an OpenGL context
64 */
65 typedef struct display_driver {
66 char *name;
67 /**
68 * Initialize the driver. This is called only once at startup time, and
69 * is guaranteed to be called before any other methods.
70 * @return TRUE if the driver was successfully initialized, otherwise
71 * FALSE.
72 */
73 gboolean (*init_driver)(void);
75 /**
76 * Cleanly shutdown the driver. Normally only called at system shutdown
77 * time.
78 */
79 void (*shutdown_driver)(void);
81 /**
82 * Given a particular keysym, return the keycode associated with it.
83 * @param keysym The keysym to be resolved, ie "Tab"
84 * @return the display-specific keycode, or 0 if the keysym cannot
85 * be resolved.
86 */
87 uint16_t (*resolve_keysym)( const gchar *keysym );
89 /**
90 * Set the current display format to the specified values. This is
91 * called immediately prior to any display frame call where the
92 * parameters have changed from the previous frame
93 */
94 gboolean (*set_display_format)( uint32_t hres, uint32_t vres,
95 int colour_fmt );
97 /**
98 * Set the current rendering format to the specified values. This is
99 * called immediately prior to starting rendering of a frame where the
100 * parameters have changed from the previous frame. Note that the driver
101 * is not required to precisely support the requested colour format.
102 *
103 * This method is also responsible for setting up an appropriate GL
104 * context for the main engine to render into.
105 *
106 * @param hres The horizontal resolution (ie 640)
107 * @param vres The vertical resolution (ie 480)
108 * @param colour_fmt The colour format of the buffer (ie COLFMT_ARGB4444)
109 * @param texture Flag indicating that the frame being rendered is a
110 * texture, rather than a display frame.
111 */
112 gboolean (*set_render_format)( uint32_t hres, uint32_t vres,
113 int colour_fmt, gboolean texture );
114 /**
115 * Display a single frame using the supplied pixmap data. Is assumed to
116 * invalidate the current GL front buffer (but not the back buffer).
117 */
118 gboolean (*display_frame)( video_buffer_t buffer );
120 /**
121 * Display a single blanked frame using a fixed colour for the
122 * entire frame (specified in RGB888 format). Is assumed to invalidate
123 * the current GL front buffer (but not the back buffer).
124 */
125 gboolean (*display_blank_frame)( uint32_t rgb );
127 /**
128 * Promote the current render back buffer to the front buffer
129 */
130 void (*display_back_buffer)( void );
131 } *display_driver_t;
133 void video_open( void );
134 void video_update_frame( void );
135 void video_update_size( int, int, int );
137 extern uint32_t pvr2_frame_counter;
139 extern display_driver_t display_driver;
141 extern struct display_driver display_gtk_driver;
142 extern struct display_driver display_null_driver;
144 /****************** Input methods **********************/
146 typedef void (*input_key_callback_t)( void *data, uint32_t value, gboolean isKeyDown );
148 gboolean input_register_key( const gchar *keysym, input_key_callback_t callback,
149 void *data, uint32_t value );
151 void input_unregister_key( const gchar *keysym );
153 gboolean input_is_key_valid( const gchar *keysym );
155 gboolean input_is_key_registered( const gchar *keysym );
157 void input_event_keydown( uint16_t keycode );
159 void input_event_keyup( uint16_t keycode );
163 #ifdef __cplusplus
164 }
165 #endif
166 #endif
.