IABSD.fr/xenocara/lib/pixman/test/a1-trap-test.c

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• Author : matthieu
  Date : 2025-08-12 16:39:28
  Hash : 81405b23
  Message : Update to pixman 0.46.4. tested in a bulk ports build and ok jca@ runs of the tests on differents by gkoeler@, jca@ and others.

• lib/pixman/test/a1-trap-test.c

• #include <assert.h>
  #include <stdio.h>
  #include <stdlib.h>
  #include <string.h>
  #include "utils.h"
  
  int
  main (int argc, char **argv)
  {
  #define WIDTH 20
  #define HEIGHT 20
  
      pixman_image_t *src_img;
      pixman_image_t *mask_img;
      pixman_image_t *dest_img;
      pixman_trap_t trap;
      pixman_color_t red = { 0xffff, 0x0000, 0x0000, 0xffff };
      uint32_t *bits = malloc (WIDTH * HEIGHT * 4);
      uint32_t *mbits = malloc (WIDTH * HEIGHT);
  
      memset (mbits, 0, WIDTH * HEIGHT);
      memset (bits, 0xff, WIDTH * HEIGHT * 4);
      
      trap.top.l = pixman_double_to_fixed (0.5);
      trap.top.r = pixman_double_to_fixed (1.5);
      trap.top.y = pixman_double_to_fixed (0.5);
  
      trap.bot.l = pixman_double_to_fixed (0.5);
      trap.bot.r = pixman_double_to_fixed (1.5);
      trap.bot.y = pixman_double_to_fixed (1.5);
  
      mask_img = pixman_image_create_bits (
  	PIXMAN_a1, WIDTH, HEIGHT, mbits, WIDTH);
      src_img = pixman_image_create_solid_fill (&red);
      dest_img = pixman_image_create_bits (
  	PIXMAN_a8r8g8b8, WIDTH, HEIGHT, bits, WIDTH * 4);
      
      pixman_add_traps (mask_img, 0, 0, 1, &trap);
  
      pixman_image_composite (PIXMAN_OP_OVER,
  			    src_img, mask_img, dest_img,
  			    0, 0, 0, 0, 0, 0, WIDTH, HEIGHT);
  
      assert (bits[0] == 0xffff0000);
      assert (bits[1] == 0xffffffff);
      assert (bits[1 * WIDTH + 0] == 0xffffffff);
      assert (bits[1 * WIDTH + 1] == 0xffffffff);
  
      /* The check-formats test depends on operator_name() and format_name() returning
       * these precise formats, so if those change, check-formats.c must be updated too.
       */
      assert (
          strcmp (operator_name (PIXMAN_OP_DISJOINT_OVER), "PIXMAN_OP_DISJOINT_OVER") == 0);
      assert (
          strcmp (format_name (PIXMAN_r5g6b5), "r5g6b5") == 0);
      
  
      free (bits);
      free (mbits);
      pixman_image_unref (mask_img);
      pixman_image_unref (dest_img);
      pixman_image_unref (src_img);
  
      return 0;
  }