git.mutantstargoat.com Git - retroray/blob - src/app.c

   1 /*
   2 RetroRay - integrated standalone vintage modeller/renderer
   3 Copyright (C) 2023  John Tsiombikas <nuclear@mutantstargoat.com>
   4
   5 This program is free software: you can redistribute it and/or modify
   6 it under the terms of the GNU General Public License as published by
   7 the Free Software Foundation, either version 3 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program.  If not, see <https://www.gnu.org/licenses/>.
  17 */
  18 #include "config.h"
  19
  20 #include <stdio.h>
  21 #include <stdlib.h>
  22 #include <string.h>
  23 #include <time.h>
  24 #include "gaw/gaw.h"
  25 #include "app.h"
  26 #include "timer.h"
  27 #include "rend.h"
  28 #include "options.h"
  29 #include "font.h"
  30 #include "util.h"
  31 #include "rtk.h"
  32
  33 #ifdef GFX_SW
  34 #include "gaw/gaw_sw.h"
  35 #endif
  36
  37 static void gui_fill(rtk_rect *rect, uint32_t color);
  38 static void gui_blit(int x, int y, rtk_icon *icon);
  39 static void gui_drawtext(int x, int y, const char *str);
  40 static void gui_textrect(const char *str, rtk_rect *rect);
  41
  42 int mouse_x, mouse_y, mouse_state[3];
  43 unsigned int modkeys;
  44 int win_width, win_height;
  45 float win_aspect;
  46 int fullscr;
  47
  48 long time_msec;
  49
  50 struct app_screen *cur_scr;
  51
  52 struct font *uifont;
  53
  54 uint32_t *framebuf;
  55
  56 struct scene *scn;
  57
  58 /* available screens */
  59 #define MAX_SCREENS     8
  60 static struct app_screen *screens[MAX_SCREENS];
  61 static int num_screens;
  62
  63
  64 int app_init(void)
  65 {
  66         int i;
  67         char *start_scr_name;
  68         static rtk_draw_ops guigfx = {gui_fill, gui_blit, gui_drawtext, gui_textrect};
  69
  70 #if !defined(NDEBUG) && defined(DBG_FPEXCEPT)
  71         infomsg("floating point exceptions enabled\n");
  72         enable_fpexcept();
  73 #endif
  74
  75 #ifdef GFX_SW
  76         gaw_sw_init();
  77 #endif
  78         rend_init();
  79
  80         app_vsync(opt.vsync);
  81         if(opt.fullscreen) {
  82                 app_fullscreen(1);
  83         }
  84
  85         /*dtx_target_user(txdraw, 0);*/
  86         dtx_target_raster((unsigned char*)framebuf, win_width, win_height);
  87         dtx_set(DTX_RASTER_THRESHOLD, 127);
  88
  89         uifont = malloc_nf(sizeof *uifont);
  90         if(load_font(uifont, "data/uifont14.gmp") == -1) {
  91                 free(uifont);
  92                 return -1;
  93         }
  94
  95         rtk_setup(&guigfx);
  96
  97         if(!(scn = create_scene())) {
  98                 return -1;
  99         }
 100
 101         /* initialize screens */
 102         screens[num_screens++] = &scr_model;
 103         screens[num_screens++] = &scr_rend;
 104
 105         start_scr_name = getenv("START_SCREEN");
 106
 107         for(i=0; i<num_screens; i++) {
 108                 if(screens[i]->init() == -1) {
 109                         return -1;
 110                 }
 111         }
 112
 113         time_msec = get_msec();
 114
 115         for(i=0; i<num_screens; i++) {
 116                 if(screens[i]->name && start_scr_name && strcmp(screens[i]->name, start_scr_name) == 0) {
 117                         app_chscr(screens[i]);
 118                         break;
 119                 }
 120         }
 121         if(!cur_scr) {
 122                 app_chscr(&scr_model);
 123         }
 124
 125         return 0;
 126 }
 127
 128 void app_shutdown(void)
 129 {
 130         int i;
 131
 132         putchar('\n');
 133
 134         save_options("retroray.cfg");
 135
 136         for(i=0; i<num_screens; i++) {
 137                 if(screens[i]->destroy) {
 138                         screens[i]->destroy();
 139                 }
 140         }
 141
 142         destroy_font(uifont);
 143         free(uifont);
 144
 145 #ifdef GFX_SW
 146         gaw_sw_destroy();
 147 #endif
 148
 149         free_scene(scn);
 150
 151         cleanup_logger();
 152 }
 153
 154 void app_display(void)
 155 {
 156         time_msec = get_msec();
 157
 158         cur_scr->display();
 159 }
 160
 161 void app_reshape(int x, int y)
 162 {
 163         int numpix = x * y;
 164         int prev_numpix = win_width * win_height;
 165
 166         if(!framebuf || numpix > prev_numpix) {
 167                 void *tmp;
 168                 if(!(tmp = realloc(framebuf, numpix * sizeof *framebuf))) {
 169                         errormsg("failed to resize framebuffer to %dx%d\n", x, y);
 170                         return;
 171                 }
 172                 framebuf = tmp;
 173         }
 174 #ifdef GFX_SW
 175         gaw_sw_framebuffer(x, y, framebuf);
 176 #endif
 177         dtx_target_raster((unsigned char*)framebuf, x, y);
 178
 179         win_width = x;
 180         win_height = y;
 181         win_aspect = (float)x / (float)y;
 182         gaw_viewport(0, 0, x, y);
 183
 184         if(cur_scr && cur_scr->reshape) {
 185                 cur_scr->reshape(x, y);
 186         }
 187
 188         app_redisplay(0, 0, 0, 0);
 189 }
 190
 191 void app_keyboard(int key, int press)
 192 {
 193         long msec;
 194         static long prev_esc;
 195
 196         if(press) {
 197                 switch(key) {
 198 #ifdef DBG_ESCQUIT
 199                 case 27:
 200                         msec = get_msec();
 201                         if(msec - prev_esc < 1000) {
 202                                 app_quit();
 203                                 return;
 204                         }
 205                         prev_esc = msec;
 206                         break;
 207 #endif
 208
 209                 case 'q':
 210                         if(modkeys & KEY_MOD_CTRL) {
 211                                 app_quit();
 212                                 return;
 213                         }
 214                         break;
 215
 216                 case '\n':
 217                 case '\r':
 218                         if(modkeys & KEY_MOD_ALT) {
 219                 case KEY_F11:
 220                                 app_fullscreen(-1);
 221                                 return;
 222                         }
 223                         break;
 224                 }
 225         }
 226
 227         if(cur_scr && cur_scr->keyboard) {
 228                 cur_scr->keyboard(key, press);
 229         }
 230 }
 231
 232 void app_mouse(int bn, int st, int x, int y)
 233 {
 234         mouse_x = x;
 235         mouse_y = y;
 236         if(bn < 3) {
 237                 mouse_state[bn] = st;
 238         }
 239
 240         if(cur_scr && cur_scr->mouse) {
 241                 cur_scr->mouse(bn, st, x, y);
 242         }
 243 }
 244
 245 void app_motion(int x, int y)
 246 {
 247         if(cur_scr && cur_scr->motion) {
 248                 cur_scr->motion(x, y);
 249         }
 250         mouse_x = x;
 251         mouse_y = y;
 252 }
 253
 254 void app_sball_motion(int x, int y, int z)
 255 {
 256         if(cur_scr->sball_motion) {
 257                 cur_scr->sball_motion(x, y, z);
 258         }
 259 }
 260
 261 void app_sball_rotate(int x, int y, int z)
 262 {
 263         if(cur_scr->sball_rotate) {
 264                 cur_scr->sball_rotate(x, y, z);
 265         }
 266 }
 267
 268 void app_sball_button(int bn, int st)
 269 {
 270         if(cur_scr->sball_button) {
 271                 cur_scr->sball_button(bn, st);
 272         }
 273 }
 274
 275 void app_chscr(struct app_screen *scr)
 276 {
 277         struct app_screen *prev = cur_scr;
 278
 279         if(!scr) return;
 280
 281         if(scr->start && scr->start() == -1) {
 282                 return;
 283         }
 284         if(scr->reshape) {
 285                 scr->reshape(win_width, win_height);
 286         }
 287
 288         if(prev && prev->stop) {
 289                 prev->stop();
 290         }
 291         cur_scr = scr;
 292 }
 293
 294 static void gui_fill(rtk_rect *rect, uint32_t color)
 295 {
 296         int i, j;
 297         uint32_t *fb = framebuf + rect->y * win_width + rect->x;
 298
 299         for(i=0; i<rect->height; i++) {
 300                 for(j=0; j<rect->width; j++) {
 301                         fb[j] = color;
 302                 }
 303                 fb += win_width;
 304         }
 305 }
 306
 307 static void gui_blit(int x, int y, rtk_icon *icon)
 308 {
 309         int i, j;
 310         uint32_t *dest, *src;
 311
 312         dest = framebuf + y * win_width + x;
 313         src = icon->pixels;
 314
 315         for(i=0; i<icon->height; i++) {
 316                 for(j=0; j<icon->width; j++) {
 317                         int r = src[j] & 0xff;
 318                         int g = (src[j] >> 8) & 0xff;
 319                         int b = (src[j] >> 16) & 0xff;
 320                         dest[j] = 0xff000000 | (r << 16) | (g << 8) | b;
 321                 }
 322                 dest += win_width;
 323                 src += icon->scanlen;
 324         }
 325 }
 326
 327 static void gui_drawtext(int x, int y, const char *str)
 328 {
 329 }
 330
 331 static void gui_textrect(const char *str, rtk_rect *rect)
 332 {
 333         rect->x = rect->y = 0;
 334         rect->width = 20;
 335         rect->height = 10;/* TODO */
 336 }