}
static void draw_cursor(int x, int y);
+static void draw_rband(rtk_rect *r);
static uint32_t *vmem;
-static int quit, disp_pending, dirty_valid;
+static int quit, dirty_valid;
static rtk_rect dirty;
-static int mx, my;
-static rtk_rect rband;
+static int mx, my, prev_mx, prev_my;
+static rtk_rect rband, prev_rband;
int main(int argc, char **argv)
{
int i;
int vmidx;
- int mdx, mdy, prev_mx, prev_my, bnstate, bndiff;
+ int mdx, mdy, bnstate, bndiff;
static int prev_bnstate;
char *env;
app_reshape(win_width, win_height);
mx = win_width / 2;
my = win_height / 2;
+ prev_mx = prev_my = -1;
for(;;) {
int key;
prev_bnstate = bnstate;
read_mouse_rel(&mdx, &mdy);
- prev_mx = mx;
- prev_my = my;
mx = clamp(mx + mdx, 0, win_width - 1);
my = clamp(my + mdy, 0, win_height - 1);
mdx = mx - prev_mx;
app_motion(mx, my);
}
- if(disp_pending) {
- disp_pending = 0;
- app_display();
- }
-
+ app_display();
app_swap_buffers();
-
- draw_cursor(prev_mx, prev_my);
- draw_cursor(mx, my);
}
break_evloop:
} else {
dirty = r;
}
- disp_pending = 1;
dirty_valid = 1;
}
if(opt.vsync) {
vid_vsync();
}
- if(!dirty_valid) return;
- if(dirty.width < win_width || dirty.height < win_height) {
- uint32_t *src = framebuf + dirty.y * win_width + dirty.x;
- vid_blit32(dirty.x, dirty.y, dirty.width, dirty.height, src, 0);
-
- if(mx >= dirty.x && my >= dirty.y && mx < dirty.x + dirty.width && my < dirty.y + dirty.height) {
- draw_cursor(mx, my);
+ if(dirty_valid) {
+ if(dirty.width < win_width || dirty.height < win_height) {
+ uint32_t *src = framebuf + dirty.y * win_width + dirty.x;
+ vid_blit32(dirty.x, dirty.y, dirty.width, dirty.height, src, 0);
+ } else {
+ vid_blitfb32(framebuf, 0);
}
- } else {
- vid_blitfb32(framebuf, 0);
- draw_cursor(mx, my);
+ dirty_valid = 0;
+ }
+ if(prev_mx >= 0) {
+ draw_cursor(prev_mx, prev_my);
}
+ draw_cursor(mx, my);
+ prev_mx = mx;
+ prev_my = my;
- dirty_valid = 0;
+ if(prev_rband.width) {
+ draw_rband(&prev_rband);
+ }
+ if(rband.width) {
+ draw_rband(&rband);
+ }
+ prev_rband = rband;
}
void app_quit(void)
}
}
-static void draw_rband(void)
+static void draw_rband(rtk_rect *r)
{
int i;
rtk_rect rect;
uint32_t *fbptr, *bptr;
- rect = rband;
- fix_rect(&rect);
+ rect = *r;
+ rtk_fix_rect(&rect);
+
+ if(rect.width <= 0 || rect.height <= 0) {
+ return;
+ }
- fbptr = framebuf + rect.y * win_width + rect.x;
+ fbptr = vmem + rect.y * win_width + rect.x;
bptr = fbptr + win_width * (rect.height - 1);
for(i=0; i<rect.width; i++) {
fbptr[rect.width - 1] ^= 0xffffff;
fbptr += win_width;
}
- app_redisplay(rect.x, rect.y, rect.width, rect.height);
}