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
  87         uifont = malloc_nf(sizeof *uifont);
  88         if(load_font(uifont, "data/uifont12.gmp") == -1) {
  89                 free(uifont);
  90                 return -1;
  91         }
  92
  93         rtk_setup(&guigfx);
  94
  95         if(!(scn = create_scene())) {
  96                 return -1;
  97         }
  98
  99         /* initialize screens */
 100         screens[num_screens++] = &scr_model;
 101         screens[num_screens++] = &scr_rend;
 102
 103         start_scr_name = getenv("START_SCREEN");
 104
 105         for(i=0; i<num_screens; i++) {
 106                 if(screens[i]->init() == -1) {
 107                         return -1;
 108                 }
 109         }
 110
 111         time_msec = app_getmsec();
 112
 113         for(i=0; i<num_screens; i++) {
 114                 if(screens[i]->name && start_scr_name && strcmp(screens[i]->name, start_scr_name) == 0) {
 115                         app_chscr(screens[i]);
 116                         break;
 117                 }
 118         }
 119         if(!cur_scr) {
 120                 app_chscr(&scr_model);
 121         }
 122
 123         return 0;
 124 }
 125
 126 void app_shutdown(void)
 127 {
 128         int i;
 129
 130         putchar('\n');
 131
 132         save_options("retroray.cfg");
 133
 134         for(i=0; i<num_screens; i++) {
 135                 if(screens[i]->destroy) {
 136                         screens[i]->destroy();
 137                 }
 138         }
 139
 140         destroy_font(uifont);
 141         free(uifont);
 142
 143 #ifdef GFX_SW
 144         gaw_sw_destroy();
 145 #endif
 146
 147         free_scene(scn);
 148
 149         cleanup_logger();
 150 }
 151
 152 void app_display(void)
 153 {
 154         time_msec = app_getmsec();
 155
 156         cur_scr->display();
 157 }
 158
 159 void app_reshape(int x, int y)
 160 {
 161         int numpix = x * y;
 162         int prev_numpix = win_width * win_height;
 163
 164         printf("reshape(%d, %d)\n", x, y);
 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
 178         win_width = x;
 179         win_height = y;
 180         win_aspect = (float)x / (float)y;
 181         gaw_viewport(0, 0, x, y);
 182
 183         if(cur_scr && cur_scr->reshape) {
 184                 cur_scr->reshape(x, y);
 185         }
 186 }
 187
 188 void app_keyboard(int key, int press)
 189 {
 190         if(press) {
 191                 switch(key) {
 192 #ifdef DBG_ESCQUIT
 193                 case 27:
 194                         app_quit();
 195                         return;
 196 #endif
 197
 198                 case 'q':
 199                         if(modkeys & KEY_MOD_CTRL) {
 200                                 app_quit();
 201                                 return;
 202                         }
 203                         break;
 204
 205                 case '\n':
 206                 case '\r':
 207                         if(modkeys & KEY_MOD_ALT) {
 208                 case KEY_F11:
 209                                 app_fullscreen(-1);
 210                                 return;
 211                         }
 212                         break;
 213                 }
 214         }
 215
 216         if(cur_scr && cur_scr->keyboard) {
 217                 cur_scr->keyboard(key, press);
 218         }
 219 }
 220
 221 void app_mouse(int bn, int st, int x, int y)
 222 {
 223         mouse_x = x;
 224         mouse_y = y;
 225         if(bn < 3) {
 226                 mouse_state[bn] = st;
 227         }
 228
 229         if(cur_scr && cur_scr->mouse) {
 230                 cur_scr->mouse(bn, st, x, y);
 231         }
 232 }
 233
 234 void app_motion(int x, int y)
 235 {
 236         if(cur_scr && cur_scr->motion) {
 237                 cur_scr->motion(x, y);
 238         }
 239         mouse_x = x;
 240         mouse_y = y;
 241 }
 242
 243 void app_sball_motion(int x, int y, int z)
 244 {
 245         if(cur_scr->sball_motion) {
 246                 cur_scr->sball_motion(x, y, z);
 247         }
 248 }
 249
 250 void app_sball_rotate(int x, int y, int z)
 251 {
 252         if(cur_scr->sball_rotate) {
 253                 cur_scr->sball_rotate(x, y, z);
 254         }
 255 }
 256
 257 void app_sball_button(int bn, int st)
 258 {
 259         if(cur_scr->sball_button) {
 260                 cur_scr->sball_button(bn, st);
 261         }
 262 }
 263
 264 void app_chscr(struct app_screen *scr)
 265 {
 266         struct app_screen *prev = cur_scr;
 267
 268         if(!scr) return;
 269
 270         if(scr->start && scr->start() == -1) {
 271                 return;
 272         }
 273         if(scr->reshape) {
 274                 scr->reshape(win_width, win_height);
 275         }
 276
 277         if(prev && prev->stop) {
 278                 prev->stop();
 279         }
 280         cur_scr = scr;
 281 }
 282
 283 static void gui_fill(rtk_rect *rect, uint32_t color)
 284 {
 285         int i, j;
 286         uint32_t *fb = framebuf + rect->y * win_width + rect->x;
 287
 288         for(i=0; i<rect->height; i++) {
 289                 for(j=0; j<rect->width; j++) {
 290                         fb[j] = color;
 291                 }
 292                 fb += win_width;
 293         }
 294 }
 295
 296 static void gui_blit(int x, int y, rtk_icon *icon)
 297 {
 298         int i, j;
 299         uint32_t *dest, *src;
 300
 301         dest = framebuf + y * win_width + x;
 302         src = icon->pixels;
 303
 304         for(i=0; i<icon->height; i++) {
 305                 for(j=0; j<icon->width; j++) {
 306                         int r = src[j] & 0xff;
 307                         int g = (src[j] >> 8) & 0xff;
 308                         int b = (src[j] >> 16) & 0xff;
 309                         dest[j] = 0xff000000 | (r << 16) | (g << 8) | b;
 310                 }
 311                 dest += win_width;
 312                 src += icon->scanlen;
 313         }
 314 }
 315
 316 static void gui_drawtext(int x, int y, const char *str)
 317 {
 318 }
 319
 320 static void gui_textrect(const char *str, rtk_rect *rect)
 321 {
 322         rect->x = rect->y = 0;
 323         rect->width = 20;
 324         rect->height = 10;/* TODO */
 325 }
 326
 327 static void txdraw(struct dtx_vertex *v, int vcount, struct dtx_pixmap *pixmap, void *cls)
 328 {
 329 }