some cleaning

master
Ondřej Hruška 7 years ago
parent 9edf507423
commit 391a35bd2e
Signed by: MightyPork
GPG Key ID: 2C5FD5035250423D
  1. 7
      Makefile
  2. 12
      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 width = gwa.width;
uint32_t height = gwa.height; 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); XImage *image = XGetImage(display, root, 0, 0, width, height, AllPlanes, ZPixmap);
uint8_t array[width * height * 3]; uint8_t array[width * height * 3];
const uint32_t red_mask = image->red_mask; const uint32_t red_mask = image->red_mask;
@ -38,7 +38,6 @@ int main()
union Color { union Color {
uint32_t hex; uint32_t hex;
RGB rgb; RGB rgb;
struct { struct {
uint8_t b; uint8_t b;
uint8_t g; uint8_t g;
@ -46,25 +45,28 @@ int main()
}; };
}; };
// sampling steps
const uint32_t xnum = 32; const uint32_t xnum = 32;
const uint32_t ynum = 24; const uint32_t ynum = 24;
const uint32_t xstep = width/xnum; const uint32_t xstep = width/xnum;
const uint32_t ystep = height/ynum; const uint32_t ystep = height/ynum;
// ideally we should downscale it using nearest-neighbour
union Color *C; union Color *C;
while (XGetSubImage(display, root, 0, 0, width, height, AllPlanes, ZPixmap, image, 0, 0)) { while (XGetSubImage(display, root, 0, 0, width, height, AllPlanes, ZPixmap, image, 0, 0)) {
//color.hex = XGetPixel(image, 40,40); #define P_GOTO(x,y) C = ((union Color*)image->data + y*width + x);
printf("\033[2J\033[H"); printf("\033[2J\033[H");
for (int i = 0; i < ynum; i++) { for (int i = 0; i < ynum; i++) {
printf("\n"); printf("\n");
for (int j = 0; j < xnum; j++) { 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); printf("\x1b[48;2;%d;%d;%dm \x1b[m", C->r, C->g, C->b);
} }
} }
usleep(50000); usleep(100000);
} }
return 0; return 0;

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