lxdream 0.9.1| filename | src/display.h |
| changeset | 144:7f0714e89aaa |
| next | 162:f7781f928f7e |
| author | nkeynes |
| date | Thu Jun 15 10:27:10 2006 +0000 (17 years ago) |
| permissions | -rw-r--r-- |
| last change | Add preliminary call-stack tracing ability Fix INTC state save/load/reset |
| view | annotate | diff | log | raw |
1 /**
2 * $Id: display.h,v 1.1 2006-05-15 08:28:48 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>
26 #ifdef __cplusplus
27 extern "C" {
28 #endif
30 /**
31 * Supported colour formats. Note that ARGB4444 is only ever used for texture
32 * rendering (it's not valid for display purposes).
33 */
34 #define COLFMT_RGB565 1
35 #define COLFMT_RGB888 4
36 #define COLFMT_ARGB1555 0
37 #define COLFMT_ARGB8888 5
38 #define COLFMT_ARGB4444 2
39 #define COLFMT_YUV422 3 /* 8-bit YUV (texture source only) */
40 #define COLFMT_INDEX4 6 /* 4 bit indexed colour (texture source only) */
41 #define COLFMT_INDEX8 7 /* 8-bit indexed colour (texture source only) */
43 typedef struct video_buffer {
44 uint32_t hres;
45 uint32_t vres;
46 uint32_t rowstride;
47 int colour_format;
48 char *data;
49 } *video_buffer_t;
51 /**
52 * Core video driver - expected to directly support an OpenGL context
53 */
54 typedef struct display_driver {
55 char *name;
56 /**
57 * Initialize the driver. This is called only once at startup time, and
58 * is guaranteed to be called before any other methods.
59 * @return TRUE if the driver was successfully initialized, otherwise
60 * FALSE.
61 */
62 gboolean (*init_driver)(void);
64 /**
65 * Cleanly shutdown the driver. Normally only called at system shutdown
66 * time.
67 */
68 void (*shutdown_driver)(void);
70 /**
71 * Given a particular keysym, return the keycode associated with it.
72 * @param keysym The keysym to be resolved, ie "Tab"
73 * @return the display-specific keycode, or 0 if the keysym cannot
74 * be resolved.
75 */
76 uint16_t (*resolve_keysym)( const gchar *keysym );
78 /**
79 * Set the current display format to the specified values. This is
80 * called immediately prior to any display frame call where the
81 * parameters have changed from the previous frame
82 */
83 gboolean (*set_display_format)( uint32_t hres, uint32_t vres,
84 int colour_fmt );
86 /**
87 * Set the current rendering format to the specified values. This is
88 * called immediately prior to starting rendering of a frame where the
89 * parameters have changed from the previous frame. Note that the driver
90 * is not required to precisely support the requested colour format.
91 *
92 * This method is also responsible for setting up an appropriate GL
93 * context for the main engine to render into.
94 *
95 * @param hres The horizontal resolution (ie 640)
96 * @param vres The vertical resolution (ie 480)
97 * @param colour_fmt The colour format of the buffer (ie COLFMT_ARGB4444)
98 * @param texture Flag indicating that the frame being rendered is a
99 * texture, rather than a display frame.
100 */
101 gboolean (*set_render_format)( uint32_t hres, uint32_t vres,
102 int colour_fmt, gboolean texture );
103 /**
104 * Display a single frame using the supplied pixmap data. Is assumed to
105 * invalidate the current GL front buffer (but not the back buffer).
106 */
107 gboolean (*display_frame)( video_buffer_t buffer );
109 /**
110 * Display a single blanked frame using a fixed colour for the
111 * entire frame (specified in RGB888 format). Is assumed to invalidate
112 * the current GL front buffer (but not the back buffer).
113 */
114 gboolean (*display_blank_frame)( uint32_t rgb );
116 /**
117 * Promote the current render back buffer to the front buffer
118 */
119 void (*display_back_buffer)( void );
120 } *display_driver_t;
122 void video_open( void );
123 void video_update_frame( void );
124 void video_update_size( int, int, int );
126 extern uint32_t pvr2_frame_counter;
128 extern display_driver_t display_driver;
130 extern struct display_driver display_gtk_driver;
131 extern struct display_driver display_null_driver;
133 /****************** Input methods **********************/
135 typedef void (*input_key_callback_t)( void *data, uint32_t value, gboolean isKeyDown );
137 gboolean input_register_key( const gchar *keysym, input_key_callback_t callback,
138 void *data, uint32_t value );
140 void input_unregister_key( const gchar *keysym );
142 gboolean input_is_key_valid( const gchar *keysym );
144 gboolean input_is_key_registered( const gchar *keysym );
146 void input_event_keydown( uint16_t keycode );
148 void input_event_keyup( uint16_t keycode );
152 #ifdef __cplusplus
153 }
154 #endif
155 #endif
.