IABSD.fr/xenocara/lib/pixman/test/gradient-crash-test.c

Branch : - branch - master - tag -

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  Commit

• Author : matthieu
  Date : 2012-11-23 20:44:07
  Hash : 87d6a5b7
  Message : Update to pixman 0.28.0. Tested by ajacoutot@, mpi@ and naddy@ in a full ports build. Tweaks from mpi@ for macppc.

• lib/pixman/test/gradient-crash-test.c

• #include <stdio.h>
  #include <stdlib.h>
  #include "utils.h"
  
  int
  main (int argc, char **argv)
  {
  #define WIDTH 400
  #define HEIGHT 200
      
      uint32_t *dest = malloc (WIDTH * HEIGHT * 4);
      pixman_image_t *src_img;
      pixman_image_t *dest_img;
      int i, j, k, p;
  
      typedef struct
      {
  	pixman_point_fixed_t p0;
  	pixman_point_fixed_t p1;
      } point_pair_t;
      
      pixman_gradient_stop_t onestop[1] =
  	{
  	    { pixman_int_to_fixed (1), { 0xffff, 0xeeee, 0xeeee, 0xeeee } },
  	};
  
      pixman_gradient_stop_t subsetstops[2] =
  	{
  	    { pixman_int_to_fixed (1), { 0xffff, 0xeeee, 0xeeee, 0xeeee } },
  	    { pixman_int_to_fixed (1), { 0xffff, 0xeeee, 0xeeee, 0xeeee } },
  	};
  
      pixman_gradient_stop_t stops01[2] =
  	{
  	    { pixman_int_to_fixed (0), { 0xffff, 0xeeee, 0xeeee, 0xeeee } },
  	    { pixman_int_to_fixed (1), { 0xffff, 0x1111, 0x1111, 0x1111 } }
  	};
  
      point_pair_t point_pairs [] =
  	{ { { pixman_double_to_fixed (0), 0 },
  	    { pixman_double_to_fixed (WIDTH / 8.), pixman_int_to_fixed (0) } },
  	  { { pixman_double_to_fixed (WIDTH / 2.0), pixman_double_to_fixed (HEIGHT / 2.0) },
  	    { pixman_double_to_fixed (WIDTH / 2.0), pixman_double_to_fixed (HEIGHT / 2.0) } }
  	};
      
      pixman_transform_t transformations[] = {
  	{
  	    { { pixman_double_to_fixed (2), pixman_double_to_fixed (0.5), pixman_double_to_fixed (-100), },
  	      { pixman_double_to_fixed (0), pixman_double_to_fixed (3), pixman_double_to_fixed (0), },
  	      { pixman_double_to_fixed (0), pixman_double_to_fixed (0.000), pixman_double_to_fixed (1.0) } 
  	    }
  	},
  	{
  	    { { pixman_double_to_fixed (1), pixman_double_to_fixed (0), pixman_double_to_fixed (0), },
  	      { pixman_double_to_fixed (0), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
  	      { pixman_double_to_fixed (0), pixman_double_to_fixed (0.000), pixman_double_to_fixed (1.0) } 
  	    }
  	},
  	{
  	    { { pixman_double_to_fixed (2), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
  	      { pixman_double_to_fixed (1), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
  	      { pixman_double_to_fixed (2), pixman_double_to_fixed (1.000), pixman_double_to_fixed (1.0) } 
  	    }
  	},
  	{
  	    { { pixman_double_to_fixed (2), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
  	      { pixman_double_to_fixed (1), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
  	      { pixman_double_to_fixed (0), pixman_double_to_fixed (0), pixman_double_to_fixed (0) } 
  	    }
  	},
  	{
  	    { { pixman_double_to_fixed (2), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
  	      { pixman_double_to_fixed (1), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
  	      { pixman_double_to_fixed (2), pixman_double_to_fixed (-1), pixman_double_to_fixed (0) } 
  	    }
  	},
  	{
  	    { { pixman_double_to_fixed (2), pixman_double_to_fixed (1), pixman_double_to_fixed (3), },
  	      { pixman_double_to_fixed (1), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
  	      { pixman_double_to_fixed (2), pixman_double_to_fixed (-1), pixman_double_to_fixed (0) } 
  	    }
  	},
      };
      
      pixman_fixed_t r_inner;
      pixman_fixed_t r_outer;
  
      enable_divbyzero_exceptions();
      
      for (i = 0; i < WIDTH * HEIGHT; ++i)
  	dest[i] = 0x4f00004f; /* pale blue */
      
      dest_img = pixman_image_create_bits (PIXMAN_a8r8g8b8,
  					 WIDTH, HEIGHT, 
  					 dest,
  					 WIDTH * 4);
  
      r_inner = 0;
      r_outer = pixman_double_to_fixed (50.0);
      
      for (i = 0; i < 3; ++i)
      {
  	pixman_gradient_stop_t *stops;
          int num_stops;
  
  	if (i == 0)
  	{
  	    stops = onestop;
  	    num_stops = ARRAY_LENGTH (onestop);
  	}
  	else if (i == 1)
  	{
  	    stops = subsetstops;
  	    num_stops = ARRAY_LENGTH (subsetstops);
  	}
  	else
  	{
  	    stops = stops01;
  	    num_stops = ARRAY_LENGTH (stops01);
  	}
  	
  	for (j = 0; j < 3; ++j)
  	{
  	    for (p = 0; p < ARRAY_LENGTH (point_pairs); ++p)
  	    {
  		point_pair_t *pair = &(point_pairs[p]);
  
  		if (j == 0)
  		    src_img = pixman_image_create_conical_gradient (&(pair->p0), r_inner,
  								    stops, num_stops);
  		else if (j == 1)
  		    src_img = pixman_image_create_radial_gradient  (&(pair->p0), &(pair->p1),
  								    r_inner, r_outer,
  								    stops, num_stops);
  		else
  		    src_img = pixman_image_create_linear_gradient  (&(pair->p0), &(pair->p1),
  								    stops, num_stops);
  		
  		for (k = 0; k < ARRAY_LENGTH (transformations); ++k)
  		{
  		    pixman_image_set_transform (src_img, &transformations[k]);
  		    
  		    pixman_image_set_repeat (src_img, PIXMAN_REPEAT_NONE);
  		    pixman_image_composite (PIXMAN_OP_OVER, src_img, NULL, dest_img,
  					    0, 0, 0, 0, 0, 0, 10 * WIDTH, HEIGHT);
  		}
  
  		pixman_image_unref (src_img);
  	    }
  
  	}
      }
  
      pixman_image_unref (dest_img);
      free (dest);
      
      return 0;
  }