/
githubmirror
/
pixman
Обзор
Документация
Войти
/
githubmirror
/
pixman
Код
Запросы
0
Пакеты
0
Релизы
0
Аналитика
Безопасность
master
demos/convolution-test.c
47 строк
1 KB
Søren Sandmann Pedersen
Move all the GTK+ based test programs to a new subdir, "demos"
15 фев 2011, 17:25
15 фев 2011, 17:25
7dfe845
Код
Авторство
О чём код?
#include <stdio.h> #include <stdlib.h> #include "pixman.h" #include "gtk-utils.h" int main (int argc, char **argv) { #define WIDTH 200 #define HEIGHT 200 #define d2f pixman_double_to_fixed uint32_t *src = malloc (WIDTH * HEIGHT * 4); uint32_t *mask = malloc (WIDTH * HEIGHT * 4); uint32_t *dest = malloc (WIDTH * HEIGHT * 4); pixman_fixed_t convolution[] = { d2f (3), d2f (3), d2f (0.5), d2f (0.5), d2f (0.5), d2f (0.5), d2f (0.5), d2f (0.5), d2f (0.5), d2f (0.5), d2f (0.5), }; pixman_image_t *simg, *mimg, *dimg; int i; for (i = 0; i < WIDTH * HEIGHT; ++i) { src[i] = 0x7f007f00; mask[i] = (i % 256) * 0x01000000; dest[i] = 0; } simg = pixman_image_create_bits (PIXMAN_a8r8g8b8, WIDTH, HEIGHT, src, WIDTH * 4); mimg = pixman_image_create_bits (PIXMAN_a8r8g8b8, WIDTH, HEIGHT, mask, WIDTH * 4); dimg = pixman_image_create_bits (PIXMAN_a8r8g8b8, WIDTH, HEIGHT, dest, WIDTH * 4); pixman_image_set_filter (mimg, PIXMAN_FILTER_CONVOLUTION, convolution, 11); pixman_image_composite (PIXMAN_OP_OVER, simg, mimg, dimg, 0, 0, 0, 0, 0, 0, WIDTH, HEIGHT); show_image (dimg); return 0; }