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 "options.h"
  27 #include "font.h"
  28 #include "util.h"
  29 #include "rtk.h"
  30
  31 #ifdef GFX_SW
  32 #include "gaw/gaw_sw.h"
  33 #endif
  34
  35 static void gui_fill(rtk_rect *rect, uint32_t color);
  36 static void gui_blit(int x, int y, rtk_icon *icon);
  37 static void gui_drawtext(int x, int y, const char *str);
  38 static void gui_textrect(const char *str, rtk_rect *rect);
  39 static void txdraw(struct dtx_vertex *v, int vcount, struct dtx_pixmap *pixmap, void *cls);
  40
  41 int mouse_x, mouse_y, mouse_state[3];
  42 unsigned int modkeys;
  43 int win_width, win_height;
  44 float win_aspect;
  45 int fullscr;
  46
  47 long time_msec;
  48
  49 struct app_screen *cur_scr;
  50
  51 struct font *uifont;
  52
  53 uint32_t *framebuf;
  54
  55 struct scene *scn;
  56
  57 /* available screens */
  58 #define MAX_SCREENS     8
  59 static struct app_screen *screens[MAX_SCREENS];
  60 static int num_screens;
  61
  62
  63 int app_init(void)
  64 {
  65         int i;
  66         char *start_scr_name;
  67         static rtk_draw_ops guigfx = {gui_fill, gui_blit, gui_drawtext, gui_textrect};
  68
  69 #if !defined(NDEBUG) && defined(DBG_FPEXCEPT)
  70         printf("floating point exceptions enabled\n");
  71         enable_fpexcept();
  72 #endif
  73
  74 #ifdef GFX_SW
  75         gaw_sw_init();
  76 #endif
  77
  78         load_options("retroray.cfg");
  79         app_resize(opt.xres, opt.yres);
  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 = app_getmsec();
 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 = app_getmsec();
 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         printf("reshape(%d, %d)\n", x, y);
 167
 168         if(!framebuf || numpix > prev_numpix) {
 169                 void *tmp;
 170                 if(!(tmp = realloc(framebuf, numpix * sizeof *framebuf))) {
 171                         errormsg("failed to resize framebuffer to %dx%d\n", x, y);
 172                         return;
 173                 }
 174                 framebuf = tmp;
 175         }
 176 #ifdef GFX_SW
 177         gaw_sw_framebuffer(x, y, framebuf);
 178 #endif
 179         dtx_target_raster((unsigned char*)framebuf, x, y);
 180
 181         win_width = x;
 182         win_height = y;
 183         win_aspect = (float)x / (float)y;
 184         gaw_viewport(0, 0, x, y);
 185
 186         if(cur_scr && cur_scr->reshape) {
 187                 cur_scr->reshape(x, y);
 188         }
 189 }
 190
 191 void app_keyboard(int key, int press)
 192 {
 193         if(press) {
 194                 switch(key) {
 195 #ifdef DBG_ESCQUIT
 196                 case 27:
 197                         app_quit();
 198                         return;
 199 #endif
 200
 201                 case 'q':
 202                         if(modkeys & KEY_MOD_CTRL) {
 203                                 app_quit();
 204                                 return;
 205                         }
 206                         break;
 207
 208                 case '\n':
 209                 case '\r':
 210                         if(modkeys & KEY_MOD_ALT) {
 211                 case KEY_F11:
 212                                 app_fullscreen(-1);
 213                                 return;
 214                         }
 215                         break;
 216                 }
 217         }
 218
 219         if(cur_scr && cur_scr->keyboard) {
 220                 cur_scr->keyboard(key, press);
 221         }
 222 }
 223
 224 void app_mouse(int bn, int st, int x, int y)
 225 {
 226         mouse_x = x;
 227         mouse_y = y;
 228         if(bn < 3) {
 229                 mouse_state[bn] = st;
 230         }
 231
 232         if(cur_scr && cur_scr->mouse) {
 233                 cur_scr->mouse(bn, st, x, y);
 234         }
 235 }
 236
 237 void app_motion(int x, int y)
 238 {
 239         if(cur_scr && cur_scr->motion) {
 240                 cur_scr->motion(x, y);
 241         }
 242         mouse_x = x;
 243         mouse_y = y;
 244 }
 245
 246 void app_sball_motion(int x, int y, int z)
 247 {
 248         if(cur_scr->sball_motion) {
 249                 cur_scr->sball_motion(x, y, z);
 250         }
 251 }
 252
 253 void app_sball_rotate(int x, int y, int z)
 254 {
 255         if(cur_scr->sball_rotate) {
 256                 cur_scr->sball_rotate(x, y, z);
 257         }
 258 }
 259
 260 void app_sball_button(int bn, int st)
 261 {
 262         if(cur_scr->sball_button) {
 263                 cur_scr->sball_button(bn, st);
 264         }
 265 }
 266
 267 void app_chscr(struct app_screen *scr)
 268 {
 269         struct app_screen *prev = cur_scr;
 270
 271         if(!scr) return;
 272
 273         if(scr->start && scr->start() == -1) {
 274                 return;
 275         }
 276         if(scr->reshape) {
 277                 scr->reshape(win_width, win_height);
 278         }
 279
 280         if(prev && prev->stop) {
 281                 prev->stop();
 282         }
 283         cur_scr = scr;
 284 }
 285
 286 static void gui_fill(rtk_rect *rect, uint32_t color)
 287 {
 288         int i, j;
 289         uint32_t *fb = framebuf + rect->y * win_width + rect->x;
 290
 291         for(i=0; i<rect->height; i++) {
 292                 for(j=0; j<rect->width; j++) {
 293                         fb[j] = color;
 294                 }
 295                 fb += win_width;
 296         }
 297 }
 298
 299 static void gui_blit(int x, int y, rtk_icon *icon)
 300 {
 301         int i, j;
 302         uint32_t *dest, *src;
 303
 304         dest = framebuf + y * win_width + x;
 305         src = icon->pixels;
 306
 307         for(i=0; i<icon->height; i++) {
 308                 for(j=0; j<icon->width; j++) {
 309                         int r = src[j] & 0xff;
 310                         int g = (src[j] >> 8) & 0xff;
 311                         int b = (src[j] >> 16) & 0xff;
 312                         dest[j] = 0xff000000 | (r << 16) | (g << 8) | b;
 313                 }
 314                 dest += win_width;
 315                 src += icon->scanlen;
 316         }
 317 }
 318
 319 static void gui_drawtext(int x, int y, const char *str)
 320 {
 321 }
 322
 323 static void gui_textrect(const char *str, rtk_rect *rect)
 324 {
 325         rect->x = rect->y = 0;
 326         rect->width = 20;
 327         rect->height = 10;/* TODO */
 328 }
 329
 330 static void txdraw(struct dtx_vertex *v, int vcount, struct dtx_pixmap *pixmap, void *cls)
 331 {
 332 }