262 lines
7.3 KiB
C
262 lines
7.3 KiB
C
|
/*
|
||
|
|
* Test program, which can detect some problems with affine transformations
|
||
|
|
* in pixman. Testing is done by running lots of random SRC and OVER
|
||
|
|
* compositing operations a8r8g8b8, x8a8r8g8b8, r5g6b5 and a8 color formats
|
||
|
|
* with random scaled, rotated and translated transforms.
|
||
|
|
*
|
||
|
|
* Script 'fuzzer-find-diff.pl' can be used to narrow down the problem in
|
||
|
|
* the case of test failure.
|
||
|
|
*/
|
||
|
|
#include <assert.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
#include "utils.h"
|
||
|
|
|
||
|
|
#define MAX_SRC_WIDTH 16
|
||
|
|
#define MAX_SRC_HEIGHT 16
|
||
|
|
#define MAX_DST_WIDTH 16
|
||
|
|
#define MAX_DST_HEIGHT 16
|
||
|
|
#define MAX_STRIDE 4
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Composite operation with pseudorandom images
|
||
|
|
*/
|
||
|
|
uint32_t
|
||
|
|
test_composite (int testnum,
|
||
|
|
int verbose)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
pixman_image_t * src_img;
|
||
|
|
pixman_image_t * dst_img;
|
||
|
|
pixman_transform_t transform;
|
||
|
|
pixman_region16_t clip;
|
||
|
|
int src_width, src_height;
|
||
|
|
int dst_width, dst_height;
|
||
|
|
int src_stride, dst_stride;
|
||
|
|
int src_x, src_y;
|
||
|
|
int dst_x, dst_y;
|
||
|
|
int src_bpp;
|
||
|
|
int dst_bpp;
|
||
|
|
int w, h;
|
||
|
|
pixman_fixed_t scale_x = 65536, scale_y = 65536;
|
||
|
|
pixman_fixed_t translate_x = 0, translate_y = 0;
|
||
|
|
int op;
|
||
|
|
int repeat = 0;
|
||
|
|
int src_fmt, dst_fmt;
|
||
|
|
uint32_t * srcbuf;
|
||
|
|
uint32_t * dstbuf;
|
||
|
|
uint32_t crc32;
|
||
|
|
FLOAT_REGS_CORRUPTION_DETECTOR_START ();
|
||
|
|
|
||
|
|
lcg_srand (testnum);
|
||
|
|
|
||
|
|
src_bpp = (lcg_rand_n (2) == 0) ? 2 : 4;
|
||
|
|
dst_bpp = (lcg_rand_n (2) == 0) ? 2 : 4;
|
||
|
|
op = (lcg_rand_n (2) == 0) ? PIXMAN_OP_SRC : PIXMAN_OP_OVER;
|
||
|
|
|
||
|
|
src_width = lcg_rand_n (MAX_SRC_WIDTH) + 1;
|
||
|
|
src_height = lcg_rand_n (MAX_SRC_HEIGHT) + 1;
|
||
|
|
dst_width = lcg_rand_n (MAX_DST_WIDTH) + 1;
|
||
|
|
dst_height = lcg_rand_n (MAX_DST_HEIGHT) + 1;
|
||
|
|
src_stride = src_width * src_bpp + lcg_rand_n (MAX_STRIDE) * src_bpp;
|
||
|
|
dst_stride = dst_width * dst_bpp + lcg_rand_n (MAX_STRIDE) * dst_bpp;
|
||
|
|
|
||
|
|
if (src_stride & 3)
|
||
|
|
src_stride += 2;
|
||
|
|
|
||
|
|
if (dst_stride & 3)
|
||
|
|
dst_stride += 2;
|
||
|
|
|
||
|
|
src_x = -(src_width / 4) + lcg_rand_n (src_width * 3 / 2);
|
||
|
|
src_y = -(src_height / 4) + lcg_rand_n (src_height * 3 / 2);
|
||
|
|
dst_x = -(dst_width / 4) + lcg_rand_n (dst_width * 3 / 2);
|
||
|
|
dst_y = -(dst_height / 4) + lcg_rand_n (dst_height * 3 / 2);
|
||
|
|
w = lcg_rand_n (dst_width * 3 / 2 - dst_x);
|
||
|
|
h = lcg_rand_n (dst_height * 3 / 2 - dst_y);
|
||
|
|
|
||
|
|
srcbuf = (uint32_t *)malloc (src_stride * src_height);
|
||
|
|
dstbuf = (uint32_t *)malloc (dst_stride * dst_height);
|
||
|
|
|
||
|
|
for (i = 0; i < src_stride * src_height; i++)
|
||
|
|
*((uint8_t *)srcbuf + i) = lcg_rand_n (256);
|
||
|
|
|
||
|
|
for (i = 0; i < dst_stride * dst_height; i++)
|
||
|
|
*((uint8_t *)dstbuf + i) = lcg_rand_n (256);
|
||
|
|
|
||
|
|
src_fmt = src_bpp == 4 ? (lcg_rand_n (2) == 0 ?
|
||
|
|
PIXMAN_a8r8g8b8 : PIXMAN_x8r8g8b8) : PIXMAN_r5g6b5;
|
||
|
|
|
||
|
|
dst_fmt = dst_bpp == 4 ? (lcg_rand_n (2) == 0 ?
|
||
|
|
PIXMAN_a8r8g8b8 : PIXMAN_x8r8g8b8) : PIXMAN_r5g6b5;
|
||
|
|
|
||
|
|
src_img = pixman_image_create_bits (
|
||
|
|
src_fmt, src_width, src_height, srcbuf, src_stride);
|
||
|
|
|
||
|
|
dst_img = pixman_image_create_bits (
|
||
|
|
dst_fmt, dst_width, dst_height, dstbuf, dst_stride);
|
||
|
|
|
||
|
|
image_endian_swap (src_img, src_bpp * 8);
|
||
|
|
image_endian_swap (dst_img, dst_bpp * 8);
|
||
|
|
|
||
|
|
pixman_transform_init_identity (&transform);
|
||
|
|
|
||
|
|
if (lcg_rand_n (8) > 0)
|
||
|
|
{
|
||
|
|
scale_x = -32768 * 3 + lcg_rand_N (65536 * 5);
|
||
|
|
scale_y = -32768 * 3 + lcg_rand_N (65536 * 5);
|
||
|
|
translate_x = lcg_rand_N (65536);
|
||
|
|
translate_y = lcg_rand_N (65536);
|
||
|
|
pixman_transform_init_scale (&transform, scale_x, scale_y);
|
||
|
|
pixman_transform_translate (&transform, NULL, translate_x, translate_y);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (lcg_rand_n (4) > 0)
|
||
|
|
{
|
||
|
|
int c = lcg_rand_N (2 * 65536) - 65536;
|
||
|
|
int s = lcg_rand_N (2 * 65536) - 65536;
|
||
|
|
|
||
|
|
pixman_transform_rotate (&transform, NULL, c, s);
|
||
|
|
}
|
||
|
|
|
||
|
|
pixman_image_set_transform (src_img, &transform);
|
||
|
|
|
||
|
|
switch (lcg_rand_n (4))
|
||
|
|
{
|
||
|
|
case 0:
|
||
|
|
repeat = PIXMAN_REPEAT_NONE;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 1:
|
||
|
|
repeat = PIXMAN_REPEAT_NORMAL;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 2:
|
||
|
|
repeat = PIXMAN_REPEAT_PAD;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 3:
|
||
|
|
repeat = PIXMAN_REPEAT_REFLECT;
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
pixman_image_set_repeat (src_img, repeat);
|
||
|
|
|
||
|
|
if (lcg_rand_n (2))
|
||
|
|
pixman_image_set_filter (src_img, PIXMAN_FILTER_NEAREST, NULL, 0);
|
||
|
|
else
|
||
|
|
pixman_image_set_filter (src_img, PIXMAN_FILTER_BILINEAR, NULL, 0);
|
||
|
|
|
||
|
|
if (verbose)
|
||
|
|
{
|
||
|
|
printf ("src_fmt=%08X, dst_fmt=%08X\n", src_fmt, dst_fmt);
|
||
|
|
printf ("op=%d, scale_x=%d, scale_y=%d, repeat=%d\n",
|
||
|
|
op, scale_x, scale_y, repeat);
|
||
|
|
printf ("translate_x=%d, translate_y=%d\n",
|
||
|
|
translate_x, translate_y);
|
||
|
|
printf ("src_width=%d, src_height=%d, dst_width=%d, dst_height=%d\n",
|
||
|
|
src_width, src_height, dst_width, dst_height);
|
||
|
|
printf ("src_x=%d, src_y=%d, dst_x=%d, dst_y=%d\n",
|
||
|
|
src_x, src_y, dst_x, dst_y);
|
||
|
|
printf ("w=%d, h=%d\n", w, h);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (lcg_rand_n (8) == 0)
|
||
|
|
{
|
||
|
|
pixman_box16_t clip_boxes[2];
|
||
|
|
int n = lcg_rand_n (2) + 1;
|
||
|
|
|
||
|
|
for (i = 0; i < n; i++)
|
||
|
|
{
|
||
|
|
clip_boxes[i].x1 = lcg_rand_n (src_width);
|
||
|
|
clip_boxes[i].y1 = lcg_rand_n (src_height);
|
||
|
|
clip_boxes[i].x2 =
|
||
|
|
clip_boxes[i].x1 + lcg_rand_n (src_width - clip_boxes[i].x1);
|
||
|
|
clip_boxes[i].y2 =
|
||
|
|
clip_boxes[i].y1 + lcg_rand_n (src_height - clip_boxes[i].y1);
|
||
|
|
|
||
|
|
if (verbose)
|
||
|
|
{
|
||
|
|
printf ("source clip box: [%d,%d-%d,%d]\n",
|
||
|
|
clip_boxes[i].x1, clip_boxes[i].y1,
|
||
|
|
clip_boxes[i].x2, clip_boxes[i].y2);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
pixman_region_init_rects (&clip, clip_boxes, n);
|
||
|
|
pixman_image_set_clip_region (src_img, &clip);
|
||
|
|
pixman_image_set_source_clipping (src_img, 1);
|
||
|
|
pixman_region_fini (&clip);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (lcg_rand_n (8) == 0)
|
||
|
|
{
|
||
|
|
pixman_box16_t clip_boxes[2];
|
||
|
|
int n = lcg_rand_n (2) + 1;
|
||
|
|
for (i = 0; i < n; i++)
|
||
|
|
{
|
||
|
|
clip_boxes[i].x1 = lcg_rand_n (dst_width);
|
||
|
|
clip_boxes[i].y1 = lcg_rand_n (dst_height);
|
||
|
|
clip_boxes[i].x2 =
|
||
|
|
clip_boxes[i].x1 + lcg_rand_n (dst_width - clip_boxes[i].x1);
|
||
|
|
clip_boxes[i].y2 =
|
||
|
|
clip_boxes[i].y1 + lcg_rand_n (dst_height - clip_boxes[i].y1);
|
||
|
|
|
||
|
|
if (verbose)
|
||
|
|
{
|
||
|
|
printf ("destination clip box: [%d,%d-%d,%d]\n",
|
||
|
|
clip_boxes[i].x1, clip_boxes[i].y1,
|
||
|
|
clip_boxes[i].x2, clip_boxes[i].y2);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
pixman_region_init_rects (&clip, clip_boxes, n);
|
||
|
|
pixman_image_set_clip_region (dst_img, &clip);
|
||
|
|
pixman_region_fini (&clip);
|
||
|
|
}
|
||
|
|
|
||
|
|
pixman_image_composite (op, src_img, NULL, dst_img,
|
||
|
|
src_x, src_y, 0, 0, dst_x, dst_y, w, h);
|
||
|
|
|
||
|
|
if (dst_fmt == PIXMAN_x8r8g8b8)
|
||
|
|
{
|
||
|
|
/* ignore unused part */
|
||
|
|
for (i = 0; i < dst_stride * dst_height / 4; i++)
|
||
|
|
dstbuf[i] &= 0xFFFFFF;
|
||
|
|
}
|
||
|
|
|
||
|
|
image_endian_swap (dst_img, dst_bpp * 8);
|
||
|
|
|
||
|
|
if (verbose)
|
||
|
|
{
|
||
|
|
int j;
|
||
|
|
|
||
|
|
for (i = 0; i < dst_height; i++)
|
||
|
|
{
|
||
|
|
for (j = 0; j < dst_stride; j++)
|
||
|
|
printf ("%02X ", *((uint8_t *)dstbuf + i * dst_stride + j));
|
||
|
|
|
||
|
|
printf ("\n");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
pixman_image_unref (src_img);
|
||
|
|
pixman_image_unref (dst_img);
|
||
|
|
|
||
|
|
crc32 = compute_crc32 (0, dstbuf, dst_stride * dst_height);
|
||
|
|
free (srcbuf);
|
||
|
|
free (dstbuf);
|
||
|
|
|
||
|
|
FLOAT_REGS_CORRUPTION_DETECTOR_FINISH ();
|
||
|
|
return crc32;
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
main (int argc, const char *argv[])
|
||
|
|
{
|
||
|
|
pixman_disable_out_of_bounds_workaround ();
|
||
|
|
|
||
|
|
return fuzzer_test_main ("affine", 8000000, 0x46EC3C6A,
|
||
|
|
test_composite, argc, argv);
|
||
|
|
}
|