1 /*
2 * Test program, which stresses the use of different color formats and
3 * compositing operations.
4 *
5 * Script 'fuzzer-find-diff.pl' can be used to narrow down the problem in
6 * the case of test failure.
7 */
8 #include <stdlib.h>
9 #include <stdio.h>
10 #include "utils.h"
11
12 static pixman_indexed_t rgb_palette[9];
13 static pixman_indexed_t y_palette[9];
14
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
17 */
18 #define N_MOST_LIKELY_FORMATS 8
19
20 /* Create random image for testing purposes */
21 static pixman_image_t *
create_random_image(pixman_format_code_t * allowed_formats,int max_width,int max_height,int max_extra_stride,pixman_format_code_t * used_fmt)22 create_random_image (pixman_format_code_t *allowed_formats,
23 int max_width,
24 int max_height,
25 int max_extra_stride,
26 pixman_format_code_t *used_fmt)
27 {
28 int n = 0, width, height, stride;
29 pixman_format_code_t fmt;
30 uint32_t *buf;
31 pixman_image_t *img;
32
33 while (allowed_formats[n] != PIXMAN_null)
34 n++;
35
36 if (n > N_MOST_LIKELY_FORMATS && prng_rand_n (4) != 0)
37 n = N_MOST_LIKELY_FORMATS;
38 fmt = allowed_formats[prng_rand_n (n)];
39
40 width = prng_rand_n (max_width) + 1;
41 height = prng_rand_n (max_height) + 1;
42 stride = (width * PIXMAN_FORMAT_BPP (fmt) + 7) / 8 +
43 prng_rand_n (max_extra_stride + 1);
44 stride = (stride + 3) & ~3;
45
46 /* do the allocation */
47 buf = aligned_malloc (64, stride * height);
48
49 if (prng_rand_n (4) == 0)
50 {
51 /* uniform distribution */
52 prng_randmemset (buf, stride * height, 0);
53 }
54 else
55 {
56 /* significantly increased probability for 0x00 and 0xFF */
57 prng_randmemset (buf, stride * height, RANDMEMSET_MORE_00_AND_FF);
58 }
59
60 /* test negative stride */
61 if (prng_rand_n (4) == 0)
62 {
63 buf += (stride / 4) * (height - 1);
64 stride = - stride;
65 }
66
67 img = pixman_image_create_bits (fmt, width, height, buf, stride);
68
69 if (PIXMAN_FORMAT_TYPE (fmt) == PIXMAN_TYPE_COLOR)
70 {
71 pixman_image_set_indexed (img, &(rgb_palette[PIXMAN_FORMAT_BPP (fmt)]));
72 }
73 else if (PIXMAN_FORMAT_TYPE (fmt) == PIXMAN_TYPE_GRAY)
74 {
75 pixman_image_set_indexed (img, &(y_palette[PIXMAN_FORMAT_BPP (fmt)]));
76 }
77
78 if (prng_rand_n (16) == 0)
79 pixman_image_set_filter (img, PIXMAN_FILTER_BILINEAR, NULL, 0);
80
81 image_endian_swap (img);
82
83 if (used_fmt) *used_fmt = fmt;
84 return img;
85 }
86
87 /* Free random image, and optionally update crc32 based on its data */
88 static uint32_t
free_random_image(uint32_t initcrc,pixman_image_t * img,pixman_format_code_t fmt)89 free_random_image (uint32_t initcrc,
90 pixman_image_t *img,
91 pixman_format_code_t fmt)
92 {
93 uint32_t crc32 = 0;
94 uint32_t *data = pixman_image_get_data (img);
95
96 if (fmt != PIXMAN_null)
97 crc32 = compute_crc32_for_image (initcrc, img);
98
99 if (img->bits.rowstride < 0)
100 data += img->bits.rowstride * (img->bits.height - 1);
101
102 pixman_image_unref (img);
103 free (data);
104
105 return crc32;
106 }
107
108 static pixman_op_t op_list[] = {
109 PIXMAN_OP_SRC,
110 PIXMAN_OP_OVER,
111 PIXMAN_OP_ADD,
112 PIXMAN_OP_CLEAR,
113 PIXMAN_OP_SRC,
114 PIXMAN_OP_DST,
115 PIXMAN_OP_OVER,
116 PIXMAN_OP_OVER_REVERSE,
117 PIXMAN_OP_IN,
118 PIXMAN_OP_IN_REVERSE,
119 PIXMAN_OP_OUT,
120 PIXMAN_OP_OUT_REVERSE,
121 PIXMAN_OP_ATOP,
122 PIXMAN_OP_ATOP_REVERSE,
123 PIXMAN_OP_XOR,
124 PIXMAN_OP_ADD,
125 PIXMAN_OP_MULTIPLY,
126 PIXMAN_OP_SCREEN,
127 PIXMAN_OP_OVERLAY,
128 PIXMAN_OP_DARKEN,
129 PIXMAN_OP_LIGHTEN,
130 PIXMAN_OP_HARD_LIGHT,
131 PIXMAN_OP_DIFFERENCE,
132 PIXMAN_OP_EXCLUSION,
133 #if 0 /* these use floating point math and are not always bitexact on different platforms */
134 PIXMAN_OP_SATURATE,
135 PIXMAN_OP_DISJOINT_CLEAR,
136 PIXMAN_OP_DISJOINT_SRC,
137 PIXMAN_OP_DISJOINT_DST,
138 PIXMAN_OP_DISJOINT_OVER,
139 PIXMAN_OP_DISJOINT_OVER_REVERSE,
140 PIXMAN_OP_DISJOINT_IN,
141 PIXMAN_OP_DISJOINT_IN_REVERSE,
142 PIXMAN_OP_DISJOINT_OUT,
143 PIXMAN_OP_DISJOINT_OUT_REVERSE,
144 PIXMAN_OP_DISJOINT_ATOP,
145 PIXMAN_OP_DISJOINT_ATOP_REVERSE,
146 PIXMAN_OP_DISJOINT_XOR,
147 PIXMAN_OP_CONJOINT_CLEAR,
148 PIXMAN_OP_CONJOINT_SRC,
149 PIXMAN_OP_CONJOINT_DST,
150 PIXMAN_OP_CONJOINT_OVER,
151 PIXMAN_OP_CONJOINT_OVER_REVERSE,
152 PIXMAN_OP_CONJOINT_IN,
153 PIXMAN_OP_CONJOINT_IN_REVERSE,
154 PIXMAN_OP_CONJOINT_OUT,
155 PIXMAN_OP_CONJOINT_OUT_REVERSE,
156 PIXMAN_OP_CONJOINT_ATOP,
157 PIXMAN_OP_CONJOINT_ATOP_REVERSE,
158 PIXMAN_OP_CONJOINT_XOR,
159 PIXMAN_OP_COLOR_DODGE,
160 PIXMAN_OP_COLOR_BURN,
161 PIXMAN_OP_SOFT_LIGHT,
162 PIXMAN_OP_HSL_HUE,
163 PIXMAN_OP_HSL_SATURATION,
164 PIXMAN_OP_HSL_COLOR,
165 PIXMAN_OP_HSL_LUMINOSITY,
166 #endif
167 };
168
169 static pixman_format_code_t img_fmt_list[] = {
170 PIXMAN_a8r8g8b8,
171 PIXMAN_a8b8g8r8,
172 PIXMAN_x8r8g8b8,
173 PIXMAN_x8b8g8r8,
174 PIXMAN_r5g6b5,
175 PIXMAN_b5g6r5,
176 PIXMAN_a8,
177 PIXMAN_a1,
178 PIXMAN_r3g3b2,
179 PIXMAN_b8g8r8a8,
180 PIXMAN_b8g8r8x8,
181 PIXMAN_r8g8b8a8,
182 PIXMAN_r8g8b8x8,
183 PIXMAN_x14r6g6b6,
184 PIXMAN_r8g8b8,
185 PIXMAN_b8g8r8,
186 #if 0 /* These are going to use floating point in the near future */
187 PIXMAN_x2r10g10b10,
188 PIXMAN_a2r10g10b10,
189 PIXMAN_x2b10g10r10,
190 PIXMAN_a2b10g10r10,
191 #endif
192 PIXMAN_a1r5g5b5,
193 PIXMAN_x1r5g5b5,
194 PIXMAN_a1b5g5r5,
195 PIXMAN_x1b5g5r5,
196 PIXMAN_a4r4g4b4,
197 PIXMAN_x4r4g4b4,
198 PIXMAN_a4b4g4r4,
199 PIXMAN_x4b4g4r4,
200 PIXMAN_r3g3b2,
201 PIXMAN_b2g3r3,
202 PIXMAN_a2r2g2b2,
203 PIXMAN_a2b2g2r2,
204 PIXMAN_c8,
205 PIXMAN_g8,
206 PIXMAN_x4c4,
207 PIXMAN_x4g4,
208 PIXMAN_c4,
209 PIXMAN_g4,
210 PIXMAN_g1,
211 PIXMAN_x4a4,
212 PIXMAN_a4,
213 PIXMAN_r1g2b1,
214 PIXMAN_b1g2r1,
215 PIXMAN_a1r1g1b1,
216 PIXMAN_a1b1g1r1,
217 PIXMAN_null
218 };
219
220 static pixman_format_code_t mask_fmt_list[] = {
221 PIXMAN_a8r8g8b8,
222 PIXMAN_a8,
223 PIXMAN_a4,
224 PIXMAN_a1,
225 PIXMAN_null
226 };
227
228
229 /*
230 * Composite operation with pseudorandom images
231 */
232 uint32_t
test_composite(int testnum,int verbose)233 test_composite (int testnum, int verbose)
234 {
235 pixman_image_t *src_img = NULL;
236 pixman_image_t *dst_img = NULL;
237 pixman_image_t *mask_img = NULL;
238 int src_width, src_height;
239 int dst_width, dst_height;
240 int src_stride, dst_stride;
241 int src_x, src_y;
242 int dst_x, dst_y;
243 int mask_x, mask_y;
244 int w, h;
245 pixman_op_t op;
246 pixman_format_code_t src_fmt, dst_fmt, mask_fmt;
247 uint32_t *srcbuf, *maskbuf;
248 uint32_t crc32;
249 int max_width, max_height, max_extra_stride;
250 FLOAT_REGS_CORRUPTION_DETECTOR_START ();
251
252 max_width = max_height = 24 + testnum / 10000;
253 max_extra_stride = 4 + testnum / 1000000;
254
255 if (max_width > 256)
256 max_width = 256;
257
258 if (max_height > 16)
259 max_height = 16;
260
261 if (max_extra_stride > 8)
262 max_extra_stride = 8;
263
264 prng_srand (testnum);
265
266 op = op_list[prng_rand_n (ARRAY_LENGTH (op_list))];
267
268 if (prng_rand_n (8))
269 {
270 /* normal image */
271 src_img = create_random_image (img_fmt_list, max_width, max_height,
272 max_extra_stride, &src_fmt);
273 }
274 else
275 {
276 /* solid case */
277 src_img = create_random_image (img_fmt_list, 1, 1,
278 max_extra_stride, &src_fmt);
279
280 pixman_image_set_repeat (src_img, PIXMAN_REPEAT_NORMAL);
281 }
282
283 dst_img = create_random_image (img_fmt_list, max_width, max_height,
284 max_extra_stride, &dst_fmt);
285
286 src_width = pixman_image_get_width (src_img);
287 src_height = pixman_image_get_height (src_img);
288 src_stride = pixman_image_get_stride (src_img);
289
290 dst_width = pixman_image_get_width (dst_img);
291 dst_height = pixman_image_get_height (dst_img);
292 dst_stride = pixman_image_get_stride (dst_img);
293
294 srcbuf = pixman_image_get_data (src_img);
295
296 src_x = prng_rand_n (src_width);
297 src_y = prng_rand_n (src_height);
298 dst_x = prng_rand_n (dst_width);
299 dst_y = prng_rand_n (dst_height);
300
301 mask_img = NULL;
302 mask_fmt = PIXMAN_null;
303 mask_x = 0;
304 mask_y = 0;
305 maskbuf = NULL;
306
307 if ((src_fmt == PIXMAN_x8r8g8b8 || src_fmt == PIXMAN_x8b8g8r8) &&
308 (prng_rand_n (4) == 0))
309 {
310 /* PIXBUF */
311 mask_fmt = prng_rand_n (2) ? PIXMAN_a8r8g8b8 : PIXMAN_a8b8g8r8;
312 mask_img = pixman_image_create_bits (mask_fmt,
313 src_width,
314 src_height,
315 srcbuf,
316 src_stride);
317 mask_x = src_x;
318 mask_y = src_y;
319 maskbuf = srcbuf;
320 }
321 else if (prng_rand_n (2))
322 {
323 if (prng_rand_n (2))
324 {
325 mask_img = create_random_image (mask_fmt_list, max_width, max_height,
326 max_extra_stride, &mask_fmt);
327 }
328 else
329 {
330 /* solid case */
331 mask_img = create_random_image (mask_fmt_list, 1, 1,
332 max_extra_stride, &mask_fmt);
333 pixman_image_set_repeat (mask_img, PIXMAN_REPEAT_NORMAL);
334 }
335
336 if (prng_rand_n (2))
337 pixman_image_set_component_alpha (mask_img, 1);
338
339 mask_x = prng_rand_n (pixman_image_get_width (mask_img));
340 mask_y = prng_rand_n (pixman_image_get_height (mask_img));
341 }
342
343
344 w = prng_rand_n (dst_width - dst_x + 1);
345 h = prng_rand_n (dst_height - dst_y + 1);
346
347 if (verbose)
348 {
349 printf ("op=%s\n", operator_name (op));
350 printf ("src_fmt=%s, dst_fmt=%s, mask_fmt=%s\n",
351 format_name (src_fmt), format_name (dst_fmt),
352 format_name (mask_fmt));
353 printf ("src_width=%d, src_height=%d, dst_width=%d, dst_height=%d\n",
354 src_width, src_height, dst_width, dst_height);
355 printf ("src_x=%d, src_y=%d, dst_x=%d, dst_y=%d\n",
356 src_x, src_y, dst_x, dst_y);
357 printf ("src_stride=%d, dst_stride=%d\n",
358 src_stride, dst_stride);
359 printf ("w=%d, h=%d\n", w, h);
360 }
361
362 pixman_image_composite (op, src_img, mask_img, dst_img,
363 src_x, src_y, mask_x, mask_y, dst_x, dst_y, w, h);
364
365 if (verbose)
366 print_image (dst_img);
367
368 free_random_image (0, src_img, PIXMAN_null);
369 crc32 = free_random_image (0, dst_img, dst_fmt);
370
371 if (mask_img)
372 {
373 if (srcbuf == maskbuf)
374 pixman_image_unref(mask_img);
375 else
376 free_random_image (0, mask_img, PIXMAN_null);
377 }
378
379 FLOAT_REGS_CORRUPTION_DETECTOR_FINISH ();
380 return crc32;
381 }
382
383 int
main(int argc,const char * argv[])384 main (int argc, const char *argv[])
385 {
386 int i;
387
388 prng_srand (0);
389
390 for (i = 1; i <= 8; i++)
391 {
392 initialize_palette (&(rgb_palette[i]), i, TRUE);
393 initialize_palette (&(y_palette[i]), i, FALSE);
394 }
395
396 return fuzzer_test_main("blitters", 2000000,
397 0xCC21DDF0,
398 test_composite, argc, argv);
399 }
400