diff options
Diffstat (limited to 'video')
| -rw-r--r-- | video/compositor.c | 61 |
1 files changed, 33 insertions, 28 deletions
diff --git a/video/compositor.c b/video/compositor.c index 3751c05..645900e 100644 --- a/video/compositor.c +++ b/video/compositor.c @@ -349,43 +349,48 @@ double sqroot(double n){ void compositor_set_background(char *ppm_raw_filename) { -// uint64_t t=timer_get_ms()/333; - /* - klog("loading bg..."); - fd bg=mount_file_open(ppm_raw_filename); - - uint32_t i=0; + // TODO: think about funny things to do with timer and update + // some generated / or modified bg regularly // + // uint64_t t=timer_get_ms()/333; // - for(int y=0;y<vesa_width;y++) + if(ppm_raw_filename!=0) { - for(int x=0;x<vesa_height;x++) + klog("loading bg..."); + fd bg=mount_file_open(ppm_raw_filename); + + uint32_t i=0; + + for(int y=0;y<vesa_width;y++) { - bgimage[i]=(fd_read(&bg)<<16)+(fd_read(&bg)<<8)+fd_read(&bg); - backbuffer[i]=bgimage[i]; - i++; + for(int x=0;x<vesa_height;x++) + { + bgimage[i]=(fd_read(&bg)<<16)+(fd_read(&bg)<<8)+fd_read(&bg); + backbuffer[i]=bgimage[i]; + i++; + } } - } - - klog("finished"); - */ - int center_x=vesa_width/2; - int center_y=vesa_height/2; + klog("finished"); + } + else + { + int center_x=vesa_width/2; + int center_y=vesa_height/2; - int max_dist = center_x*center_x+center_y*center_y; + int max_dist = center_x*center_x+center_y*center_y; - for(int x=0;x<vesa_width;x++) - { - for(int y=0;y<vesa_height;y++) + for(int x=0;x<vesa_width;x++) { - int diffx=center_x-x; - int diffy=center_y-y; - int dist=diffx*diffx+diffy*diffy; - int val = 0xff*dist/max_dist; + for(int y=0;y<vesa_height;y++) + { + int diffx=center_x-x; + int diffy=center_y-y; + int dist=diffx*diffx+diffy*diffy; + int val = 0xff*dist/max_dist; - bgimage[x+y*vesa_width]=val; - //backbuffer[x+y*vesa_width]=valr<<16; + bgimage[x+y*vesa_width]=val; + //backbuffer[x+y*vesa_width]=valr<<16; + } } } - } |