2 * Test program, which stresses the use of different color formats and
3 * compositing operations.
5 * Script 'fuzzer-find-diff.pl' can be used to narrow down the problem in
6 * the case of test failure.
12 static pixman_indexed_t rgb_palette[9];
13 static pixman_indexed_t y_palette[9];
15 /* The first eight format in the list are by far the most widely
16 * used formats, so we test those more than the others
18 #define N_MOST_LIKELY_FORMATS 8
20 /* Create random image for testing purposes */
21 static pixman_image_t *
22 create_random_image (pixman_format_code_t *allowed_formats,
26 pixman_format_code_t *used_fmt)
28 int n = 0, i, width, height, stride;
29 pixman_format_code_t fmt;
33 while (allowed_formats[n] != PIXMAN_null)
36 if (n > N_MOST_LIKELY_FORMATS && lcg_rand_n (4) != 0)
37 n = N_MOST_LIKELY_FORMATS;
38 fmt = allowed_formats[lcg_rand_n (n)];
40 width = lcg_rand_n (max_width) + 1;
41 height = lcg_rand_n (max_height) + 1;
42 stride = (width * PIXMAN_FORMAT_BPP (fmt) + 7) / 8 +
43 lcg_rand_n (max_extra_stride + 1);
44 stride = (stride + 3) & ~3;
46 /* do the allocation */
47 buf = aligned_malloc (64, stride * height);
49 /* initialize image with random data */
50 for (i = 0; i < stride * height; i++)
52 /* generation is biased to having more 0 or 255 bytes as
53 * they are more likely to be special-cased in code
55 *((uint8_t *)buf + i) = lcg_rand_n (4) ? lcg_rand_n (256) :
56 (lcg_rand_n (2) ? 0 : 255);
59 img = pixman_image_create_bits (fmt, width, height, buf, stride);
61 if (PIXMAN_FORMAT_TYPE (fmt) == PIXMAN_TYPE_COLOR)
63 pixman_image_set_indexed (img, &(rgb_palette[PIXMAN_FORMAT_BPP (fmt)]));
65 else if (PIXMAN_FORMAT_TYPE (fmt) == PIXMAN_TYPE_GRAY)
67 pixman_image_set_indexed (img, &(y_palette[PIXMAN_FORMAT_BPP (fmt)]));
70 if (lcg_rand_n (16) == 0)
71 pixman_image_set_filter (img, PIXMAN_FILTER_BILINEAR, NULL, 0);
73 image_endian_swap (img);
75 if (used_fmt) *used_fmt = fmt;
79 /* Free random image, and optionally update crc32 based on its data */
81 free_random_image (uint32_t initcrc,
83 pixman_format_code_t fmt)
86 int stride = pixman_image_get_stride (img);
87 uint32_t *data = pixman_image_get_data (img);
88 int height = pixman_image_get_height (img);
90 if (fmt != PIXMAN_null)
92 /* mask unused 'x' part */
93 if (PIXMAN_FORMAT_BPP (fmt) - PIXMAN_FORMAT_DEPTH (fmt) &&
94 PIXMAN_FORMAT_DEPTH (fmt) != 0)
97 uint32_t *data = pixman_image_get_data (img);
98 uint32_t mask = (1 << PIXMAN_FORMAT_DEPTH (fmt)) - 1;
100 if (PIXMAN_FORMAT_TYPE (fmt) == PIXMAN_TYPE_BGRA ||
101 PIXMAN_FORMAT_TYPE (fmt) == PIXMAN_TYPE_RGBA)
103 mask <<= (PIXMAN_FORMAT_BPP (fmt) - PIXMAN_FORMAT_DEPTH (fmt));
106 for (i = 0; i < 32; i++)
107 mask |= mask << (i * PIXMAN_FORMAT_BPP (fmt));
109 for (i = 0; i < stride * height / 4; i++)
113 /* swap endiannes in order to provide identical results on both big
114 * and litte endian systems
116 image_endian_swap (img);
117 crc32 = compute_crc32 (initcrc, data, stride * height);
120 pixman_image_unref (img);
126 static pixman_op_t op_list[] = {
134 PIXMAN_OP_OVER_REVERSE,
136 PIXMAN_OP_IN_REVERSE,
138 PIXMAN_OP_OUT_REVERSE,
140 PIXMAN_OP_ATOP_REVERSE,
144 PIXMAN_OP_DISJOINT_CLEAR,
145 PIXMAN_OP_DISJOINT_SRC,
146 PIXMAN_OP_DISJOINT_DST,
147 PIXMAN_OP_DISJOINT_OVER,
148 PIXMAN_OP_DISJOINT_OVER_REVERSE,
149 PIXMAN_OP_DISJOINT_IN,
150 PIXMAN_OP_DISJOINT_IN_REVERSE,
151 PIXMAN_OP_DISJOINT_OUT,
152 PIXMAN_OP_DISJOINT_OUT_REVERSE,
153 PIXMAN_OP_DISJOINT_ATOP,
154 PIXMAN_OP_DISJOINT_ATOP_REVERSE,
155 PIXMAN_OP_DISJOINT_XOR,
156 PIXMAN_OP_CONJOINT_CLEAR,
157 PIXMAN_OP_CONJOINT_SRC,
158 PIXMAN_OP_CONJOINT_DST,
159 PIXMAN_OP_CONJOINT_OVER,
160 PIXMAN_OP_CONJOINT_OVER_REVERSE,
161 PIXMAN_OP_CONJOINT_IN,
162 PIXMAN_OP_CONJOINT_IN_REVERSE,
163 PIXMAN_OP_CONJOINT_OUT,
164 PIXMAN_OP_CONJOINT_OUT_REVERSE,
165 PIXMAN_OP_CONJOINT_ATOP,
166 PIXMAN_OP_CONJOINT_ATOP_REVERSE,
167 PIXMAN_OP_CONJOINT_XOR,
173 PIXMAN_OP_COLOR_DODGE,
174 PIXMAN_OP_COLOR_BURN,
175 PIXMAN_OP_HARD_LIGHT,
176 PIXMAN_OP_DIFFERENCE,
178 #if 0 /* these use floating point math and are not always bitexact on different platforms */
179 PIXMAN_OP_SOFT_LIGHT,
181 PIXMAN_OP_HSL_SATURATION,
183 PIXMAN_OP_HSL_LUMINOSITY,
187 static pixman_format_code_t img_fmt_list[] = {
236 static pixman_format_code_t mask_fmt_list[] = {
246 * Composite operation with pseudorandom images
249 test_composite (int testnum, int verbose)
252 pixman_image_t *src_img = NULL;
253 pixman_image_t *dst_img = NULL;
254 pixman_image_t *mask_img = NULL;
255 int src_width, src_height;
256 int dst_width, dst_height;
257 int src_stride, dst_stride;
263 pixman_format_code_t src_fmt, dst_fmt, mask_fmt;
264 uint32_t *dstbuf, *srcbuf, *maskbuf;
266 int max_width, max_height, max_extra_stride;
267 FLOAT_REGS_CORRUPTION_DETECTOR_START ();
269 max_width = max_height = 24 + testnum / 10000;
270 max_extra_stride = 4 + testnum / 1000000;
278 if (max_extra_stride > 8)
279 max_extra_stride = 8;
283 op = op_list[lcg_rand_n (ARRAY_LENGTH (op_list))];
288 src_img = create_random_image (img_fmt_list, max_width, max_height,
289 max_extra_stride, &src_fmt);
294 src_img = create_random_image (img_fmt_list, 1, 1,
295 max_extra_stride, &src_fmt);
297 pixman_image_set_repeat (src_img, PIXMAN_REPEAT_NORMAL);
300 dst_img = create_random_image (img_fmt_list, max_width, max_height,
301 max_extra_stride, &dst_fmt);
303 src_width = pixman_image_get_width (src_img);
304 src_height = pixman_image_get_height (src_img);
305 src_stride = pixman_image_get_stride (src_img);
307 dst_width = pixman_image_get_width (dst_img);
308 dst_height = pixman_image_get_height (dst_img);
309 dst_stride = pixman_image_get_stride (dst_img);
311 dstbuf = pixman_image_get_data (dst_img);
312 srcbuf = pixman_image_get_data (src_img);
314 src_x = lcg_rand_n (src_width);
315 src_y = lcg_rand_n (src_height);
316 dst_x = lcg_rand_n (dst_width);
317 dst_y = lcg_rand_n (dst_height);
320 mask_fmt = PIXMAN_null;
325 if ((src_fmt == PIXMAN_x8r8g8b8 || src_fmt == PIXMAN_x8b8g8r8) &&
326 (lcg_rand_n (4) == 0))
329 mask_fmt = lcg_rand_n (2) ? PIXMAN_a8r8g8b8 : PIXMAN_a8b8g8r8;
330 mask_img = pixman_image_create_bits (mask_fmt,
339 else if (lcg_rand_n (2))
343 mask_img = create_random_image (mask_fmt_list, max_width, max_height,
344 max_extra_stride, &mask_fmt);
349 mask_img = create_random_image (mask_fmt_list, 1, 1,
350 max_extra_stride, &mask_fmt);
351 pixman_image_set_repeat (mask_img, PIXMAN_REPEAT_NORMAL);
355 pixman_image_set_component_alpha (mask_img, 1);
357 mask_x = lcg_rand_n (pixman_image_get_width (mask_img));
358 mask_y = lcg_rand_n (pixman_image_get_height (mask_img));
362 w = lcg_rand_n (dst_width - dst_x + 1);
363 h = lcg_rand_n (dst_height - dst_y + 1);
367 printf ("op=%d, src_fmt=%08X, dst_fmt=%08X, mask_fmt=%08X\n",
368 op, src_fmt, dst_fmt, mask_fmt);
369 printf ("src_width=%d, src_height=%d, dst_width=%d, dst_height=%d\n",
370 src_width, src_height, dst_width, dst_height);
371 printf ("src_x=%d, src_y=%d, dst_x=%d, dst_y=%d\n",
372 src_x, src_y, dst_x, dst_y);
373 printf ("src_stride=%d, dst_stride=%d\n",
374 src_stride, dst_stride);
375 printf ("w=%d, h=%d\n", w, h);
378 pixman_image_composite (op, src_img, mask_img, dst_img,
379 src_x, src_y, mask_x, mask_y, dst_x, dst_y, w, h);
386 for (i = 0; i < dst_height; i++)
388 for (j = 0; j < dst_stride; j++)
390 if (j == (dst_width * PIXMAN_FORMAT_BPP (dst_fmt) + 7) / 8)
393 printf ("%02X ", *((uint8_t *)dstbuf + i * dst_stride + j));
400 free_random_image (0, src_img, PIXMAN_null);
401 crc32 = free_random_image (0, dst_img, dst_fmt);
405 if (srcbuf == maskbuf)
406 pixman_image_unref(mask_img);
408 free_random_image (0, mask_img, PIXMAN_null);
411 FLOAT_REGS_CORRUPTION_DETECTOR_FINISH ();
416 main (int argc, const char *argv[])
420 for (i = 1; i <= 8; i++)
422 initialize_palette (&(rgb_palette[i]), i, TRUE);
423 initialize_palette (&(y_palette[i]), i, FALSE);
426 return fuzzer_test_main("blitters", 2000000,
428 test_composite, argc, argv);