some cleaning

master
Ondřej Hruška 6 years ago
parent 9edf507423
commit 391a35bd2e
Signed by: MightyPork
GPG Key ID: 2C5FD5035250423D
  1. 7
      Makefile
  2. 16
      main.c

@ -0,0 +1,7 @@
SOURCES = main.c
all: ${SOURCES}
cc ${SOURCES} -lX11
run: all
./a.out

@ -24,7 +24,7 @@ int main()
uint32_t width = gwa.width;
uint32_t height = gwa.height;
// The first image, to measure the screen
// The first image, to measure the screen and allocate the buffer
XImage *image = XGetImage(display, root, 0, 0, width, height, AllPlanes, ZPixmap);
uint8_t array[width * height * 3];
const uint32_t red_mask = image->red_mask;
@ -37,8 +37,7 @@ int main()
union Color {
uint32_t hex;
RGB rgb;
RGB rgb;
struct {
uint8_t b;
uint8_t g;
@ -46,25 +45,28 @@ int main()
};
};
// sampling steps
const uint32_t xnum = 32;
const uint32_t ynum = 24;
const uint32_t xstep = width/xnum;
const uint32_t ystep = height/ynum;
// ideally we should downscale it using nearest-neighbour
union Color *C;
while (XGetSubImage(display, root, 0, 0, width, height, AllPlanes, ZPixmap, image, 0, 0)) {
//color.hex = XGetPixel(image, 40,40);
while (XGetSubImage(display, root, 0, 0, width, height, AllPlanes, ZPixmap, image, 0, 0)) {
#define P_GOTO(x,y) C = ((union Color*)image->data + y*width + x);
printf("\033[2J\033[H");
for (int i = 0; i < ynum; i++) {
printf("\n");
for (int j = 0; j < xnum; j++) {
C = ((union Color*)image->data + i*ystep*width + j*xstep);
P_GOTO(j*xstep, i*ystep);
printf("\x1b[48;2;%d;%d;%dm \x1b[m", C->r, C->g, C->b);
}
}
usleep(50000);
usleep(100000);
}
return 0;

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