filename | src/display.h |
changeset | 669:ab344e42bca9 |
prev | 615:38b69ec2f4c8 |
next | 674:377d987db8f2 |
author | nkeynes |
date | Mon May 12 10:00:13 2008 +0000 (15 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) |
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nkeynes@144 | 1 | /** |
nkeynes@561 | 2 | * $Id$ |
nkeynes@144 | 3 | * |
nkeynes@144 | 4 | * The PC side of the video support (responsible for actually displaying / |
nkeynes@144 | 5 | * rendering frames) |
nkeynes@144 | 6 | * |
nkeynes@144 | 7 | * Copyright (c) 2005 Nathan Keynes. |
nkeynes@144 | 8 | * |
nkeynes@144 | 9 | * This program is free software; you can redistribute it and/or modify |
nkeynes@144 | 10 | * it under the terms of the GNU General Public License as published by |
nkeynes@144 | 11 | * the Free Software Foundation; either version 2 of the License, or |
nkeynes@144 | 12 | * (at your option) any later version. |
nkeynes@144 | 13 | * |
nkeynes@144 | 14 | * This program is distributed in the hope that it will be useful, |
nkeynes@144 | 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
nkeynes@144 | 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
nkeynes@144 | 17 | * GNU General Public License for more details. |
nkeynes@144 | 18 | */ |
nkeynes@144 | 19 | |
nkeynes@144 | 20 | #ifndef dream_video_H |
nkeynes@144 | 21 | #define dream_video_H |
nkeynes@144 | 22 | |
nkeynes@669 | 23 | #define GL_GLEXT_PROTOTYPES 1 |
nkeynes@669 | 24 | |
nkeynes@144 | 25 | #include <stdint.h> |
nkeynes@144 | 26 | #include <glib.h> |
nkeynes@540 | 27 | #include "lxdream.h" |
nkeynes@540 | 28 | #ifdef APPLE_BUILD |
nkeynes@540 | 29 | #include <OpenGL/gl.h> |
nkeynes@540 | 30 | #include <OpenGL/glext.h> |
nkeynes@540 | 31 | #else |
nkeynes@327 | 32 | #include <GL/gl.h> |
nkeynes@540 | 33 | #include <GL/glext.h> |
nkeynes@540 | 34 | #endif |
nkeynes@144 | 35 | |
nkeynes@144 | 36 | #ifdef __cplusplus |
nkeynes@144 | 37 | extern "C" { |
nkeynes@144 | 38 | #endif |
nkeynes@144 | 39 | |
nkeynes@144 | 40 | /** |
nkeynes@477 | 41 | * Supported colour formats. Note that BGRA4444 is only ever used for texture |
nkeynes@144 | 42 | * rendering (it's not valid for display purposes). |
nkeynes@144 | 43 | */ |
nkeynes@477 | 44 | #define COLFMT_BGRA1555 0 |
nkeynes@144 | 45 | #define COLFMT_RGB565 1 |
nkeynes@477 | 46 | #define COLFMT_BGRA4444 2 |
nkeynes@144 | 47 | #define COLFMT_YUV422 3 /* 8-bit YUV (texture source only) */ |
nkeynes@477 | 48 | #define COLFMT_BGR888 4 /* 24-bit BGR */ |
nkeynes@477 | 49 | #define COLFMT_BGRA8888 5 |
nkeynes@144 | 50 | #define COLFMT_INDEX4 6 /* 4 bit indexed colour (texture source only) */ |
nkeynes@144 | 51 | #define COLFMT_INDEX8 7 /* 8-bit indexed colour (texture source only) */ |
nkeynes@477 | 52 | #define COLFMT_BGR0888 8 /* 32-bit BGR */ |
nkeynes@477 | 53 | #define COLFMT_RGB888 9 /* 24-bit RGB (ie GL native) */ |
nkeynes@327 | 54 | |
nkeynes@327 | 55 | struct colour_format { |
nkeynes@327 | 56 | GLint type, format, int_format; |
nkeynes@327 | 57 | int bpp; |
nkeynes@327 | 58 | }; |
nkeynes@327 | 59 | extern struct colour_format colour_formats[]; |
nkeynes@144 | 60 | |
nkeynes@162 | 61 | extern int colour_format_bytes[]; |
nkeynes@162 | 62 | |
nkeynes@352 | 63 | /** |
nkeynes@352 | 64 | * Structure to hold pixel data held in GL buffers. |
nkeynes@352 | 65 | */ |
nkeynes@477 | 66 | struct render_buffer { |
nkeynes@352 | 67 | uint32_t width; |
nkeynes@352 | 68 | uint32_t height; |
nkeynes@144 | 69 | uint32_t rowstride; |
nkeynes@144 | 70 | int colour_format; |
nkeynes@352 | 71 | sh4addr_t address; /* Address buffer was rendered to, or -1 for unrendered */ |
nkeynes@352 | 72 | uint32_t size; /* Size of buffer in bytes, must be width*height*bpp */ |
nkeynes@477 | 73 | gboolean inverted;/* True if the buffer is upside down */ |
nkeynes@352 | 74 | int scale; |
nkeynes@424 | 75 | unsigned int buf_id; /* driver-specific buffer id, if applicable */ |
nkeynes@352 | 76 | gboolean flushed; /* True if the buffer has been flushed to vram */ |
nkeynes@477 | 77 | }; |
nkeynes@144 | 78 | |
nkeynes@144 | 79 | /** |
nkeynes@352 | 80 | * Structure to hold pixel data stored in pvr2 vram, as opposed to data in |
nkeynes@352 | 81 | * GL buffers. |
nkeynes@352 | 82 | */ |
nkeynes@477 | 83 | struct frame_buffer { |
nkeynes@352 | 84 | uint32_t width; |
nkeynes@352 | 85 | uint32_t height; |
nkeynes@352 | 86 | uint32_t rowstride; |
nkeynes@352 | 87 | int colour_format; |
nkeynes@352 | 88 | sh4addr_t address; |
nkeynes@352 | 89 | uint32_t size; /* Size of buffer in bytes, must be width*height*bpp */ |
nkeynes@477 | 90 | gboolean inverted;/* True if the buffer is upside down */ |
nkeynes@502 | 91 | unsigned char *data; |
nkeynes@477 | 92 | }; |
nkeynes@352 | 93 | |
nkeynes@352 | 94 | /** |
nkeynes@352 | 95 | * Core video driver - exports function to setup a GL context, as well as handle |
nkeynes@352 | 96 | * keyboard input and display resultant output. |
nkeynes@144 | 97 | */ |
nkeynes@144 | 98 | typedef struct display_driver { |
nkeynes@144 | 99 | char *name; |
nkeynes@144 | 100 | /** |
nkeynes@144 | 101 | * Initialize the driver. This is called only once at startup time, and |
nkeynes@144 | 102 | * is guaranteed to be called before any other methods. |
nkeynes@144 | 103 | * @return TRUE if the driver was successfully initialized, otherwise |
nkeynes@144 | 104 | * FALSE. |
nkeynes@144 | 105 | */ |
nkeynes@144 | 106 | gboolean (*init_driver)(void); |
nkeynes@144 | 107 | |
nkeynes@144 | 108 | /** |
nkeynes@144 | 109 | * Cleanly shutdown the driver. Normally only called at system shutdown |
nkeynes@144 | 110 | * time. |
nkeynes@144 | 111 | */ |
nkeynes@144 | 112 | void (*shutdown_driver)(void); |
nkeynes@144 | 113 | |
nkeynes@144 | 114 | /** |
nkeynes@144 | 115 | * Given a particular keysym, return the keycode associated with it. |
nkeynes@144 | 116 | * @param keysym The keysym to be resolved, ie "Tab" |
nkeynes@144 | 117 | * @return the display-specific keycode, or 0 if the keysym cannot |
nkeynes@144 | 118 | * be resolved. |
nkeynes@144 | 119 | */ |
nkeynes@144 | 120 | uint16_t (*resolve_keysym)( const gchar *keysym ); |
nkeynes@144 | 121 | |
nkeynes@144 | 122 | /** |
nkeynes@608 | 123 | * Given a native system keycode, convert it to a dreamcast keyboard code. |
nkeynes@608 | 124 | */ |
nkeynes@608 | 125 | uint16_t (*convert_to_dckeysym)( uint16_t keycode ); |
nkeynes@608 | 126 | |
nkeynes@608 | 127 | /** |
nkeynes@614 | 128 | * Given a device-specific event code, return the corresponding keysym. |
nkeynes@614 | 129 | * The string should be newly allocated (caller will free) |
nkeynes@614 | 130 | */ |
nkeynes@614 | 131 | gchar *(*get_keysym_for_keycode)( uint16_t keycode ); |
nkeynes@614 | 132 | |
nkeynes@614 | 133 | /** |
nkeynes@352 | 134 | * Create a render target with the given width and height. |
nkeynes@144 | 135 | */ |
nkeynes@352 | 136 | render_buffer_t (*create_render_buffer)( uint32_t width, uint32_t height ); |
nkeynes@144 | 137 | |
nkeynes@144 | 138 | /** |
nkeynes@352 | 139 | * Destroy the specified render buffer and release any associated |
nkeynes@352 | 140 | * resources. |
nkeynes@144 | 141 | */ |
nkeynes@352 | 142 | void (*destroy_render_buffer)( render_buffer_t buffer ); |
nkeynes@352 | 143 | |
nkeynes@144 | 144 | /** |
nkeynes@352 | 145 | * Set the current rendering target to the specified buffer. |
nkeynes@144 | 146 | */ |
nkeynes@352 | 147 | gboolean (*set_render_target)( render_buffer_t buffer ); |
nkeynes@352 | 148 | |
nkeynes@352 | 149 | /** |
nkeynes@477 | 150 | * Load the supplied frame buffer into the given render buffer. |
nkeynes@477 | 151 | * Included here to allow driver-specific optimizations. |
nkeynes@352 | 152 | */ |
nkeynes@477 | 153 | void (*load_frame_buffer)( frame_buffer_t frame, render_buffer_t render ); |
nkeynes@352 | 154 | |
nkeynes@352 | 155 | /** |
nkeynes@352 | 156 | * Display a single frame using a previously rendered GL buffer. |
nkeynes@352 | 157 | */ |
nkeynes@669 | 158 | void (*display_render_buffer)( render_buffer_t buffer ); |
nkeynes@144 | 159 | |
nkeynes@144 | 160 | /** |
nkeynes@144 | 161 | * Display a single blanked frame using a fixed colour for the |
nkeynes@477 | 162 | * entire frame (specified in BGR888 format). |
nkeynes@144 | 163 | */ |
nkeynes@669 | 164 | void (*display_blank)( uint32_t rgb ); |
nkeynes@144 | 165 | |
nkeynes@144 | 166 | /** |
nkeynes@352 | 167 | * Copy the image data from the GL buffer to the target memory buffer, |
nkeynes@352 | 168 | * using the format etc from the buffer. This may force a glFinish() |
nkeynes@352 | 169 | * but does not invalidate the buffer. |
nkeynes@477 | 170 | * @param target buffer to fill with image data, which must be large enough |
nkeynes@477 | 171 | * to accomodate the image. |
nkeynes@477 | 172 | * @param buffer Render buffer to read from. |
nkeynes@477 | 173 | * @param rowstride rowstride of the target data |
nkeynes@477 | 174 | * @param format colour format to output the data in. |
nkeynes@144 | 175 | */ |
nkeynes@477 | 176 | gboolean (*read_render_buffer)( unsigned char *target, render_buffer_t buffer, |
nkeynes@477 | 177 | int rowstride, int format ); |
nkeynes@352 | 178 | |
nkeynes@144 | 179 | } *display_driver_t; |
nkeynes@144 | 180 | |
nkeynes@531 | 181 | display_driver_t get_display_driver_by_name( const char *name ); |
nkeynes@370 | 182 | gboolean display_set_driver( display_driver_t driver ); |
nkeynes@144 | 183 | |
nkeynes@144 | 184 | extern uint32_t pvr2_frame_counter; |
nkeynes@144 | 185 | |
nkeynes@144 | 186 | extern display_driver_t display_driver; |
nkeynes@144 | 187 | |
nkeynes@540 | 188 | extern struct display_driver display_agl_driver; |
nkeynes@144 | 189 | extern struct display_driver display_gtk_driver; |
nkeynes@144 | 190 | extern struct display_driver display_null_driver; |
nkeynes@144 | 191 | |
nkeynes@144 | 192 | /****************** Input methods **********************/ |
nkeynes@144 | 193 | |
nkeynes@614 | 194 | typedef void (*input_key_callback_t)( void *data, uint32_t value, uint32_t pressure, gboolean isKeyDown ); |
nkeynes@144 | 195 | |
nkeynes@608 | 196 | /** |
nkeynes@608 | 197 | * Callback to receive mouse input events |
nkeynes@608 | 198 | * @param data pointer passed in at the time the hook was registered |
nkeynes@608 | 199 | * @param buttons bitmask of button states, where bit 0 is button 0 (left), bit 1 is button |
nkeynes@608 | 200 | * 1 (middle), bit 2 is button 2 (right) and so forth. |
nkeynes@608 | 201 | * @param x Horizontal movement since the last invocation (in relative mode) or window position |
nkeynes@608 | 202 | * (in absolute mode). |
nkeynes@608 | 203 | * @param y Vertical movement since the last invocation (in relative mode) or window position |
nkeynes@608 | 204 | * (in absolute mode). |
nkeynes@608 | 205 | */ |
nkeynes@608 | 206 | typedef void (*input_mouse_callback_t)( void *data, uint32_t buttons, int32_t x, int32_t y ); |
nkeynes@608 | 207 | |
nkeynes@144 | 208 | gboolean input_register_key( const gchar *keysym, input_key_callback_t callback, |
nkeynes@144 | 209 | void *data, uint32_t value ); |
nkeynes@144 | 210 | |
nkeynes@451 | 211 | void input_unregister_key( const gchar *keysym, input_key_callback_t callback, |
nkeynes@451 | 212 | void *data, uint32_t value ); |
nkeynes@144 | 213 | |
nkeynes@608 | 214 | /** |
nkeynes@608 | 215 | * Register a hook to receive all input events |
nkeynes@608 | 216 | */ |
nkeynes@608 | 217 | gboolean input_register_hook( input_key_callback_t callback, void *data ); |
nkeynes@608 | 218 | void input_unregister_hook( input_key_callback_t callback, void *data ); |
nkeynes@608 | 219 | |
nkeynes@608 | 220 | /** |
nkeynes@608 | 221 | * Register a mouse event hook. |
nkeynes@608 | 222 | * @param relative TRUE if the caller wants relative mouse movement, FALSE for |
nkeynes@608 | 223 | * absolute mouse positioning. It's not generally possible to receive both at the same time. |
nkeynes@608 | 224 | */ |
nkeynes@608 | 225 | gboolean input_register_mouse_hook( gboolean relative, input_mouse_callback_t callback, void *data ); |
nkeynes@608 | 226 | void input_unregister_mouse_hook( input_mouse_callback_t callback, void *data ); |
nkeynes@608 | 227 | |
nkeynes@144 | 228 | gboolean input_is_key_valid( const gchar *keysym ); |
nkeynes@144 | 229 | |
nkeynes@144 | 230 | gboolean input_is_key_registered( const gchar *keysym ); |
nkeynes@144 | 231 | |
nkeynes@614 | 232 | uint16_t input_keycode_to_dckeysym( uint16_t keycode ); |
nkeynes@144 | 233 | |
nkeynes@614 | 234 | /********************** Display/Input methods ***********************/ |
nkeynes@614 | 235 | |
nkeynes@614 | 236 | /** |
nkeynes@614 | 237 | * Auxilliary input driver - provides input separate to and in addition to the |
nkeynes@614 | 238 | * core UI/display. (primarily used for joystick devices) |
nkeynes@614 | 239 | */ |
nkeynes@614 | 240 | typedef struct input_driver { |
nkeynes@614 | 241 | const char *id; /* Short identifier to display in the UI for the device (eg "JS0" ) */ |
nkeynes@614 | 242 | |
nkeynes@614 | 243 | /** |
nkeynes@614 | 244 | * Given a particular keysym, return the keycode associated with it. |
nkeynes@614 | 245 | * @param keysym The keysym to be resolved, ie "Tab" |
nkeynes@614 | 246 | * @return the display-specific keycode, or 0 if the keysym cannot |
nkeynes@614 | 247 | * be resolved. |
nkeynes@614 | 248 | */ |
nkeynes@614 | 249 | uint16_t (*resolve_keysym)( struct input_driver *driver, const gchar *keysym ); |
nkeynes@614 | 250 | |
nkeynes@614 | 251 | /** |
nkeynes@614 | 252 | * Given a device-specific event code, convert it to a dreamcast keyboard code. |
nkeynes@614 | 253 | * This is only required for actual keyboard devices, other devices should just |
nkeynes@614 | 254 | * leave this method NULL. |
nkeynes@614 | 255 | */ |
nkeynes@614 | 256 | uint16_t (*convert_to_dckeysym)( struct input_driver *driver, uint16_t keycode ); |
nkeynes@614 | 257 | |
nkeynes@614 | 258 | /** |
nkeynes@614 | 259 | * Given a device-specific event code, return the corresponding keysym. |
nkeynes@614 | 260 | * The string should be newly allocated (caller will free) |
nkeynes@614 | 261 | */ |
nkeynes@614 | 262 | gchar *(*get_keysym_for_keycode)( struct input_driver *driver, uint16_t keycode ); |
nkeynes@614 | 263 | |
nkeynes@614 | 264 | /** |
nkeynes@614 | 265 | * Destroy the input driver. |
nkeynes@614 | 266 | */ |
nkeynes@614 | 267 | void (*destroy)( struct input_driver *driver ); |
nkeynes@614 | 268 | |
nkeynes@614 | 269 | } *input_driver_t; |
nkeynes@614 | 270 | |
nkeynes@614 | 271 | /** |
nkeynes@614 | 272 | * Register a new input driver (which must have a unique name) |
nkeynes@614 | 273 | * @param driver the driver to register |
nkeynes@614 | 274 | * @param max_keycode the highest possible keycode reported by the device |
nkeynes@614 | 275 | * @return TRUE on success, FALSE on failure (eg driver already registed). |
nkeynes@614 | 276 | */ |
nkeynes@614 | 277 | gboolean input_register_device( input_driver_t driver, uint16_t max_keycode ); |
nkeynes@614 | 278 | |
nkeynes@614 | 279 | /** |
nkeynes@615 | 280 | * Determine if the system has an input driver with the given unique ID. |
nkeynes@615 | 281 | * @param id driver id to check |
nkeynes@615 | 282 | * @return TRUE if the device exists, otherwise FALSE |
nkeynes@615 | 283 | */ |
nkeynes@615 | 284 | gboolean input_has_device( const gchar *id ); |
nkeynes@615 | 285 | |
nkeynes@615 | 286 | /** |
nkeynes@614 | 287 | * Unregister an input driver. |
nkeynes@614 | 288 | * @param driver the driver to unregister |
nkeynes@614 | 289 | * If the driver is not in fact registered, this function has no effect. |
nkeynes@614 | 290 | */ |
nkeynes@614 | 291 | void input_unregister_device( input_driver_t driver ); |
nkeynes@614 | 292 | |
nkeynes@614 | 293 | /** |
nkeynes@614 | 294 | * Called from the UI to indicate that the emulation window is focused (ie |
nkeynes@614 | 295 | * able to receive input). This method is used to gate non-UI input devices - |
nkeynes@614 | 296 | * when the display is not focused, all input events will be silently ignored. |
nkeynes@614 | 297 | */ |
nkeynes@614 | 298 | void display_set_focused( gboolean has_focus ); |
nkeynes@614 | 299 | |
nkeynes@614 | 300 | void input_event_keydown( input_driver_t input, uint16_t keycode, uint32_t pressure ); |
nkeynes@614 | 301 | |
nkeynes@614 | 302 | void input_event_keyup( input_driver_t input, uint16_t keycode, uint32_t pressure ); |
nkeynes@144 | 303 | |
nkeynes@608 | 304 | void input_event_mouse( uint32_t buttons, int32_t x_axis, int32_t y_axis ); |
nkeynes@144 | 305 | |
nkeynes@614 | 306 | |
nkeynes@614 | 307 | typedef void (*display_keysym_callback_t)( void *data, const gchar *keysym ); |
nkeynes@614 | 308 | |
nkeynes@614 | 309 | /** |
nkeynes@614 | 310 | * Set the keysym hook function (normally used by the UI to receive non-UI |
nkeynes@614 | 311 | * input events during configuration. |
nkeynes@614 | 312 | */ |
nkeynes@614 | 313 | void input_set_keysym_hook( display_keysym_callback_t hook, void *data ); |
nkeynes@614 | 314 | |
nkeynes@614 | 315 | |
nkeynes@144 | 316 | |
nkeynes@144 | 317 | #ifdef __cplusplus |
nkeynes@144 | 318 | } |
nkeynes@144 | 319 | #endif |
nkeynes@144 | 320 | #endif |
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