93 lines
2.1 KiB
C
93 lines
2.1 KiB
C
|
#include <stdio.h>
|
||
|
|
#include <pixman.h>
|
||
|
|
|
||
|
|
#include "lib/window.h"
|
||
|
|
#include "lib/graphics.h"
|
||
|
|
|
||
|
|
int main(int argc, char * argv[]) {
|
||
|
|
setup_windowing();
|
||
|
|
|
||
|
|
#define WIDTH 400
|
||
|
|
#define HEIGHT 400
|
||
|
|
#define TILE_SIZE 25
|
||
|
|
|
||
|
|
window_t * window = window_create(100,100,WIDTH,HEIGHT);
|
||
|
|
gfx_context_t * ctx = init_graphics_window(window);
|
||
|
|
window_enable_alpha(window);
|
||
|
|
draw_fill(ctx, rgba(0,0,0,255));
|
||
|
|
|
||
|
|
pixman_image_t *checkerboard;
|
||
|
|
pixman_image_t *destination;
|
||
|
|
#define D2F(d) (pixman_double_to_fixed(d))
|
||
|
|
pixman_transform_t trans = { {
|
||
|
|
{ D2F (-1.96830), D2F (-1.82250), D2F (512.12250)},
|
||
|
|
{ D2F (0.00000), D2F (-7.29000), D2F (1458.00000)},
|
||
|
|
{ D2F (0.00000), D2F (-0.00911), D2F (0.59231)},
|
||
|
|
}};
|
||
|
|
int i, j;
|
||
|
|
|
||
|
|
checkerboard = pixman_image_create_bits (PIXMAN_a8r8g8b8,
|
||
|
|
WIDTH, HEIGHT,
|
||
|
|
NULL, 0);
|
||
|
|
|
||
|
|
destination = pixman_image_create_bits (PIXMAN_a8r8g8b8,
|
||
|
|
WIDTH, HEIGHT,
|
||
|
|
NULL, 0);
|
||
|
|
|
||
|
|
for (i = 0; i < HEIGHT / TILE_SIZE; ++i)
|
||
|
|
{
|
||
|
|
for (j = 0; j < WIDTH / TILE_SIZE; ++j)
|
||
|
|
{
|
||
|
|
double u = (double)(j + 1) / (WIDTH / TILE_SIZE);
|
||
|
|
double v = (double)(i + 1) / (HEIGHT / TILE_SIZE);
|
||
|
|
pixman_color_t black = { 0, 0, 0, 0xffff };
|
||
|
|
pixman_color_t white = {
|
||
|
|
v * 0xffff,
|
||
|
|
u * 0xffff,
|
||
|
|
(1 - (double)u) * 0xffff,
|
||
|
|
0xffff };
|
||
|
|
pixman_color_t *c;
|
||
|
|
pixman_image_t *fill;
|
||
|
|
|
||
|
|
if ((j & 1) != (i & 1))
|
||
|
|
c = &black;
|
||
|
|
else
|
||
|
|
c = &white;
|
||
|
|
|
||
|
|
fill = pixman_image_create_solid_fill (c);
|
||
|
|
|
||
|
|
pixman_image_composite (PIXMAN_OP_SRC, fill, NULL, checkerboard,
|
||
|
|
0, 0, 0, 0, j * TILE_SIZE, i * TILE_SIZE,
|
||
|
|
TILE_SIZE, TILE_SIZE);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
pixman_image_set_transform (checkerboard, &trans);
|
||
|
|
pixman_image_set_filter (checkerboard, PIXMAN_FILTER_BEST, NULL, 0);
|
||
|
|
pixman_image_set_repeat (checkerboard, PIXMAN_REPEAT_NONE);
|
||
|
|
|
||
|
|
pixman_image_composite (PIXMAN_OP_SRC,
|
||
|
|
checkerboard, NULL, destination,
|
||
|
|
0, 0, 0, 0, 0, 0,
|
||
|
|
WIDTH, HEIGHT);
|
||
|
|
|
||
|
|
printf("Going for native draw.\n");
|
||
|
|
|
||
|
|
uint32_t * buf = pixman_image_get_data(destination);
|
||
|
|
memcpy(ctx->buffer,buf,WIDTH*HEIGHT*4);
|
||
|
|
|
||
|
|
while (1) {
|
||
|
|
w_keyboard_t * kbd = poll_keyboard();
|
||
|
|
if (kbd != NULL) {
|
||
|
|
if (kbd->key == 'q') {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
free(kbd);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
teardown_windowing();
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|