IABSD.fr/xenocara/lib/pixman/demos/screen-test.c

Branch : - branch - master - tag -

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  Commit

• Author : matthieu
  Date : 2011-07-24 13:05:47
  Hash : 0def8ce1
  Message : Update to pixman 0.22.2. 0.22.0 was tested by many. 0.22.2 only add a few bug fixes. Note that on amd64 a recent ld.so is needed to avoid random bus errors.

• lib/pixman/demos/screen-test.c

• #include <stdio.h>
  #include <stdlib.h>
  #include "pixman.h"
  #include "gtk-utils.h"
  
  int
  main (int argc, char **argv)
  {
  #define WIDTH 40
  #define HEIGHT 40
      
      uint32_t *src1 = malloc (WIDTH * HEIGHT * 4);
      uint32_t *src2 = malloc (WIDTH * HEIGHT * 4);
      uint32_t *src3 = malloc (WIDTH * HEIGHT * 4);
      uint32_t *dest = malloc (3 * WIDTH * 2 * HEIGHT * 4);
      pixman_image_t *simg1, *simg2, *simg3, *dimg;
  
      int i;
  
      for (i = 0; i < WIDTH * HEIGHT; ++i)
      {
  	src1[i] = 0x7ff00000;
  	src2[i] = 0x7f00ff00;
  	src3[i] = 0x7f0000ff;
      }
  
      for (i = 0; i < 3 * WIDTH * 2 * HEIGHT; ++i)
      {
  	dest[i] = 0x0;
      }
  
      simg1 = pixman_image_create_bits (PIXMAN_a8r8g8b8, WIDTH, HEIGHT, src1, WIDTH * 4);
      simg2 = pixman_image_create_bits (PIXMAN_a8r8g8b8, WIDTH, HEIGHT, src2, WIDTH * 4);
      simg3 = pixman_image_create_bits (PIXMAN_a8r8g8b8, WIDTH, HEIGHT, src3, WIDTH * 4);
      dimg  = pixman_image_create_bits (PIXMAN_a8r8g8b8, 3 * WIDTH, 2 * HEIGHT, dest, 3 * WIDTH * 4);
  
      pixman_image_composite (PIXMAN_OP_SCREEN, simg1, NULL, dimg, 0, 0, 0, 0, WIDTH, HEIGHT / 4, WIDTH, HEIGHT);
      pixman_image_composite (PIXMAN_OP_SCREEN, simg2, NULL, dimg, 0, 0, 0, 0, (WIDTH/2), HEIGHT / 4 + HEIGHT / 2, WIDTH, HEIGHT);
      pixman_image_composite (PIXMAN_OP_SCREEN, simg3, NULL, dimg, 0, 0, 0, 0, (4 * WIDTH) / 3, HEIGHT, WIDTH, HEIGHT);
  
      show_image (dimg);
      
      return 0;
  }