vulkan_test2

annotate src/wsys_x11.c @ 6:1dd2c7398afc

find changesets by author, revision, files, or words in the commit message
swapchain images and other tales of woe
author John Tsiombikas <nuclear@member.fsf.org>
date Fri, 22 Sep 2017 18:13:03 +0300
parents cec4b0e7fce8
children 20eb42197ab8
rev   line source
nuclear@4 1 #include <stdio.h>
nuclear@4 2 #include <stdlib.h>
nuclear@4 3 #include <X11/Xlib.h>
nuclear@4 4 #include <X11/Xutil.h>
nuclear@4 5 #include "wsys.h"
nuclear@4 6 #include "vku.h"
nuclear@4 7
nuclear@4 8 struct callbacks {
nuclear@4 9 void (*display)(void);
nuclear@4 10 void (*reshape)(int, int);
nuclear@4 11 void (*keyboard)(int, int);
nuclear@4 12 void (*mouse)(int, int, int, int);
nuclear@4 13 void (*motion)(int, int);
nuclear@4 14 void (*passive)(int, int);
nuclear@4 15 };
nuclear@4 16
nuclear@4 17 enum {
nuclear@4 18 QUIT = 1,
nuclear@4 19 RESHAPE = 2,
nuclear@4 20 REDISPLAY = 4
nuclear@4 21 };
nuclear@4 22
nuclear@4 23 static void proc_event(XEvent *ev);
nuclear@4 24
nuclear@4 25 static Display *dpy;
nuclear@4 26 static Window win;
nuclear@5 27 static VkSurfaceKHR surf;
nuclear@5 28 static VkSwapchainKHR swapchain;
nuclear@6 29 static VkImage *swapchain_images;
nuclear@6 30 static int next_swapchain_image;
nuclear@4 31 static Atom xa_wm_delete;
nuclear@4 32 static int win_width, win_height;
nuclear@4 33 static int win_mapped;
nuclear@4 34 static unsigned int evmask = StructureNotifyMask | ExposureMask;
nuclear@4 35 static unsigned int pending;
nuclear@4 36 static struct callbacks cb;
nuclear@4 37
nuclear@4 38 int wsys_create_window(int xsz, int ysz)
nuclear@4 39 {
nuclear@4 40 int i, scr, num_visuals;
nuclear@4 41 Window root_win;
nuclear@4 42 Visual *vis = 0;
nuclear@4 43 XSetWindowAttributes xattr;
nuclear@4 44 unsigned int xattr_mask;
nuclear@4 45 XVisualInfo *vinf, vinf_match;
nuclear@4 46
nuclear@4 47 if(!(dpy = XOpenDisplay(0))) {
nuclear@4 48 fprintf(stderr, "failed to open connection to the X server\n");
nuclear@4 49 return -1;
nuclear@4 50 }
nuclear@4 51 scr = DefaultScreen(dpy);
nuclear@4 52 root_win = RootWindow(dpy, scr);
nuclear@4 53
nuclear@4 54 xa_wm_delete = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
nuclear@4 55
nuclear@4 56 vinf_match.screen = scr;
nuclear@4 57 vinf_match.depth = 24;
nuclear@4 58 vinf_match.class = TrueColor;
nuclear@4 59
nuclear@4 60 if(!(vinf = XGetVisualInfo(dpy, VisualScreenMask | VisualDepthMask | VisualClassMask, &vinf_match, &num_visuals))) {
nuclear@4 61 fprintf(stderr, "failed to retrieve matching visuals\n");
nuclear@4 62 XCloseDisplay(dpy);
nuclear@4 63 return -1;
nuclear@4 64 }
nuclear@4 65
nuclear@4 66 for(i=0; i<num_visuals; i++) {
nuclear@4 67 if(vku_xlib_usable_visual(dpy, vinf[i].visualid)) {
nuclear@4 68 vis = vinf[i].visual;
nuclear@4 69 break;
nuclear@4 70 }
nuclear@4 71 }
nuclear@4 72 if(!vis) {
nuclear@4 73 fprintf(stderr, "failed to find approprate visual\n");
nuclear@4 74 XFree(vinf);
nuclear@4 75 XCloseDisplay(dpy);
nuclear@4 76 return -1;
nuclear@4 77 }
nuclear@4 78
nuclear@4 79 xattr.background_pixel = xattr.border_pixel = BlackPixel(dpy, scr);
nuclear@4 80 xattr.colormap = XCreateColormap(dpy, root_win, vis, AllocNone);
nuclear@4 81 xattr_mask = CWBackPixel | CWBorderPixel | CWColormap;
nuclear@4 82
nuclear@4 83 if(!(win = XCreateWindow(dpy, root_win, 0, 0, xsz, ysz, 0, 24, InputOutput, vis, xattr_mask, &xattr))) {
nuclear@4 84 fprintf(stderr, "failed to create X window\n");
nuclear@4 85 XFree(vinf);
nuclear@4 86 XCloseDisplay(dpy);
nuclear@4 87 return -1;
nuclear@4 88 }
nuclear@4 89 XFree(vinf);
nuclear@4 90
nuclear@4 91 XSelectInput(dpy, win, evmask);
nuclear@4 92 XSetWMProtocols(dpy, win, &xa_wm_delete, 1);
nuclear@4 93
nuclear@5 94 if(!(surf = vku_xlib_create_surface(dpy, win))) {
nuclear@5 95 fprintf(stderr, "failed to create vulkan surface for the window\n");
nuclear@5 96 XDestroyWindow(dpy, win);
nuclear@5 97 XCloseDisplay(dpy);
nuclear@5 98 return -1;
nuclear@5 99 }
nuclear@5 100 /* swapchain gets created before the first reshape invocation */
nuclear@5 101
nuclear@4 102 wsys_set_window_title("X11 window");
nuclear@4 103 XMapWindow(dpy, win);
nuclear@4 104
nuclear@4 105 win_width = xsz;
nuclear@4 106 win_height = ysz;
nuclear@4 107 pending = RESHAPE | REDISPLAY;
nuclear@4 108
nuclear@4 109 return 0;
nuclear@4 110 }
nuclear@4 111
nuclear@4 112 void wsys_destroy_window(void)
nuclear@4 113 {
nuclear@4 114 if(dpy) {
nuclear@4 115 if(win) {
nuclear@4 116 XDestroyWindow(dpy, win);
nuclear@4 117 win = 0;
nuclear@4 118 }
nuclear@4 119 XCloseDisplay(dpy);
nuclear@4 120 dpy = 0;
nuclear@4 121 }
nuclear@4 122 }
nuclear@4 123
nuclear@4 124 void wsys_get_window_size(int *xsz, int *ysz)
nuclear@4 125 {
nuclear@4 126 *xsz = win_width;
nuclear@4 127 *ysz = win_height;
nuclear@4 128 }
nuclear@4 129
nuclear@4 130 void wsys_set_window_title(const char *title)
nuclear@4 131 {
nuclear@4 132 XTextProperty text;
nuclear@4 133 XStringListToTextProperty((char**)&title, 1, &text);
nuclear@4 134 XSetWMName(dpy, win, &text);
nuclear@4 135 XSetWMIconName(dpy, win, &text);
nuclear@4 136 XFree(text.value);
nuclear@4 137 }
nuclear@4 138
nuclear@4 139 void wsys_display_callback(void (*func)(void))
nuclear@4 140 {
nuclear@4 141 cb.display = func;
nuclear@4 142 }
nuclear@4 143
nuclear@4 144 void wsys_reshape_callback(void (*func)(int, int))
nuclear@4 145 {
nuclear@4 146 cb.reshape = func;
nuclear@4 147 }
nuclear@4 148
nuclear@4 149 void wsys_keyboard_callback(void (*func)(int, int))
nuclear@4 150 {
nuclear@4 151 cb.keyboard = func;
nuclear@4 152 if(func) {
nuclear@4 153 evmask |= KeyPressMask | KeyReleaseMask;
nuclear@4 154 } else {
nuclear@4 155 evmask &= ~(KeyPressMask | KeyReleaseMask);
nuclear@4 156 }
nuclear@4 157 if(win) {
nuclear@4 158 XSelectInput(dpy, win, evmask);
nuclear@4 159 }
nuclear@4 160 }
nuclear@4 161
nuclear@4 162 void wsys_mouse_callback(void (*func)(int, int, int, int))
nuclear@4 163 {
nuclear@4 164 cb.mouse = func;
nuclear@4 165 if(func) {
nuclear@4 166 evmask |= ButtonPressMask | ButtonReleaseMask;
nuclear@4 167 } else {
nuclear@4 168 evmask &= ~(ButtonPressMask | ButtonReleaseMask);
nuclear@4 169 }
nuclear@4 170 if(win) {
nuclear@4 171 XSelectInput(dpy, win, evmask);
nuclear@4 172 }
nuclear@4 173 }
nuclear@4 174
nuclear@4 175 void wsys_motion_callback(void (*func)(int, int))
nuclear@4 176 {
nuclear@4 177 cb.motion = func;
nuclear@4 178 if(func) {
nuclear@4 179 evmask |= ButtonMotionMask;
nuclear@4 180 } else {
nuclear@4 181 evmask &= ~ButtonMotionMask;
nuclear@4 182 }
nuclear@4 183 if(win) {
nuclear@4 184 XSelectInput(dpy, win, evmask);
nuclear@4 185 }
nuclear@4 186 }
nuclear@4 187
nuclear@4 188 void wsys_passive_motion_callback(void (*func)(int, int))
nuclear@4 189 {
nuclear@4 190 cb.passive = func;
nuclear@4 191 if(func) {
nuclear@4 192 evmask |= PointerMotionMask;
nuclear@4 193 } else {
nuclear@4 194 evmask &= ~PointerMotionMask;
nuclear@4 195 }
nuclear@4 196 if(win) {
nuclear@4 197 XSelectInput(dpy, win, evmask);
nuclear@4 198 }
nuclear@4 199 }
nuclear@4 200
nuclear@4 201 void wsys_swap_buffers(void)
nuclear@4 202 {
nuclear@6 203 vku_present(swapchain, next_swapchain_image);
nuclear@6 204 next_swapchain_image = vku_get_next_image(swapchain);
nuclear@4 205 }
nuclear@4 206
nuclear@4 207 void wsys_redisplay(void)
nuclear@4 208 {
nuclear@4 209 pending |= REDISPLAY;
nuclear@4 210 }
nuclear@4 211
nuclear@4 212 void wsys_quit(void)
nuclear@4 213 {
nuclear@4 214 pending |= QUIT;
nuclear@4 215 }
nuclear@4 216
nuclear@4 217 int wsys_process_events(int mode)
nuclear@4 218 {
nuclear@4 219 XEvent xev;
nuclear@4 220
nuclear@4 221 if(pending & RESHAPE) {
nuclear@5 222 VkSwapchainKHR sc;
nuclear@5 223 if(!(sc = vku_create_swapchain(surf, win_width, win_height, 2, VK_PRESENT_MODE_FIFO_KHR, swapchain))) {
nuclear@5 224 fprintf(stderr, "Failed to create %dx%d double-buffered swapchain\n", win_width, win_height);
nuclear@5 225 return -1;
nuclear@5 226 }
nuclear@5 227 swapchain = sc;
nuclear@5 228
nuclear@6 229 free(swapchain_images);
nuclear@6 230 swapchain_images = vku_get_swapchain_images(sc, 0);
nuclear@6 231 next_swapchain_image = vku_get_next_image(swapchain);
nuclear@6 232
nuclear@4 233 if(cb.reshape) {
nuclear@4 234 cb.reshape(win_width, win_height);
nuclear@4 235 }
nuclear@4 236 pending &= ~RESHAPE;
nuclear@4 237 }
nuclear@4 238
nuclear@4 239 if(mode == WSYS_BLOCKING) {
nuclear@4 240 XNextEvent(dpy, &xev);
nuclear@4 241 proc_event(&xev);
nuclear@4 242 if(pending & QUIT) return -1;
nuclear@4 243 }
nuclear@4 244
nuclear@4 245 while(XPending(dpy)) {
nuclear@4 246 XNextEvent(dpy, &xev);
nuclear@4 247 proc_event(&xev);
nuclear@4 248 if(pending & QUIT) return -1;
nuclear@4 249 }
nuclear@4 250
nuclear@4 251 if(pending & REDISPLAY && win_mapped) {
nuclear@4 252 pending &= ~REDISPLAY;
nuclear@4 253 if(cb.display) {
nuclear@4 254 cb.display();
nuclear@4 255 }
nuclear@4 256 }
nuclear@4 257 return 0;
nuclear@4 258 }
nuclear@4 259
nuclear@4 260 static void proc_event(XEvent *ev)
nuclear@4 261 {
nuclear@4 262 switch(ev->type) {
nuclear@4 263 case MapNotify:
nuclear@4 264 win_mapped = 1;
nuclear@4 265 break;
nuclear@4 266
nuclear@4 267 case UnmapNotify:
nuclear@4 268 win_mapped = 0;
nuclear@4 269 break;
nuclear@4 270
nuclear@4 271 case ClientMessage:
nuclear@4 272 if(ev->xclient.data.l[0] == xa_wm_delete) {
nuclear@4 273 pending |= QUIT;
nuclear@4 274 }
nuclear@4 275 break;
nuclear@4 276
nuclear@4 277 case ConfigureNotify:
nuclear@4 278 if(ev->xconfigure.width != win_width || ev->xconfigure.height != win_height) {
nuclear@4 279 win_width = ev->xconfigure.width;
nuclear@4 280 win_height = ev->xconfigure.height;
nuclear@4 281 pending |= RESHAPE;
nuclear@4 282 }
nuclear@4 283 break;
nuclear@4 284
nuclear@4 285 case Expose:
nuclear@4 286 if(ev->xexpose.count == 0) {
nuclear@4 287 pending |= REDISPLAY;
nuclear@4 288 }
nuclear@4 289 break;
nuclear@4 290
nuclear@4 291 case KeyPress:
nuclear@4 292 case KeyRelease:
nuclear@4 293 if(cb.keyboard) {
nuclear@4 294 KeySym sym;
nuclear@4 295 char str[16];
nuclear@4 296 XLookupString(&ev->xkey, str, sizeof str, &sym, 0);
nuclear@4 297 cb.keyboard(sym & 0xff, ev->type == KeyPress ? 1 : 0);
nuclear@4 298 }
nuclear@4 299 break;
nuclear@4 300
nuclear@4 301 case ButtonPress:
nuclear@4 302 case ButtonRelease:
nuclear@4 303 if(cb.mouse) {
nuclear@4 304 int bn = ev->xbutton.button - Button1;
nuclear@4 305 int pressed = ev->type == ButtonPress ? 1 : 0;
nuclear@4 306 cb.mouse(bn, pressed, ev->xbutton.x, ev->xbutton.y);
nuclear@4 307 }
nuclear@4 308 break;
nuclear@4 309
nuclear@4 310 case MotionNotify:
nuclear@4 311 if(ev->xmotion.state & 0x1f00) {
nuclear@4 312 if(cb.motion) {
nuclear@4 313 cb.motion(ev->xmotion.x, ev->xmotion.y);
nuclear@4 314 }
nuclear@4 315 } else {
nuclear@4 316 if(cb.passive) {
nuclear@4 317 cb.passive(ev->xmotion.x, ev->xmotion.y);
nuclear@4 318 }
nuclear@4 319 }
nuclear@4 320 break;
nuclear@4 321 }
nuclear@4 322 }