diff options
Diffstat (limited to 'pixman/test')
-rw-r--r-- | pixman/test/scaling-test.c | 736 |
1 files changed, 368 insertions, 368 deletions
diff --git a/pixman/test/scaling-test.c b/pixman/test/scaling-test.c index dbb9d39b0..2a0826a46 100644 --- a/pixman/test/scaling-test.c +++ b/pixman/test/scaling-test.c @@ -1,368 +1,368 @@ -/* - * Test program, which can detect some problems with nearest neighbour - * and bilinear scaling in pixman. Testing is done by running lots - * of random SRC and OVER compositing operations a8r8g8b8, x8a8r8g8b8 - * and r5g6b5 color formats. - * - * 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 48 -#define MAX_SRC_HEIGHT 8 -#define MAX_DST_WIDTH 48 -#define MAX_DST_HEIGHT 8 -#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 * mask_img; - pixman_image_t * dst_img; - pixman_transform_t transform; - pixman_region16_t clip; - int src_width, src_height; - int mask_width, mask_height; - int dst_width, dst_height; - int src_stride, mask_stride, dst_stride; - int src_x, src_y; - int mask_x, mask_y; - int dst_x, dst_y; - int src_bpp; - int mask_bpp = 1; - int dst_bpp; - int w, h; - pixman_fixed_t scale_x = 65536, scale_y = 65536; - pixman_fixed_t translate_x = 0, translate_y = 0; - pixman_fixed_t mask_scale_x = 65536, mask_scale_y = 65536; - pixman_fixed_t mask_translate_x = 0, mask_translate_y = 0; - pixman_op_t op; - pixman_repeat_t repeat = PIXMAN_REPEAT_NONE; - pixman_repeat_t mask_repeat = PIXMAN_REPEAT_NONE; - pixman_format_code_t src_fmt, dst_fmt; - uint32_t * srcbuf; - uint32_t * dstbuf; - uint32_t * maskbuf; - 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; - switch (lcg_rand_n (3)) - { - case 0: - op = PIXMAN_OP_SRC; - break; - case 1: - op = PIXMAN_OP_OVER; - break; - default: - op = PIXMAN_OP_ADD; - break; - } - - src_width = lcg_rand_n (MAX_SRC_WIDTH) + 1; - src_height = lcg_rand_n (MAX_SRC_HEIGHT) + 1; - - if (lcg_rand_n (2)) - { - mask_width = lcg_rand_n (MAX_SRC_WIDTH) + 1; - mask_height = lcg_rand_n (MAX_SRC_HEIGHT) + 1; - } - else - { - mask_width = mask_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; - mask_stride = mask_width * mask_bpp + lcg_rand_n (MAX_STRIDE) * mask_bpp; - dst_stride = dst_width * dst_bpp + lcg_rand_n (MAX_STRIDE) * dst_bpp; - - if (src_stride & 3) - src_stride += 2; - - if (mask_stride & 1) - mask_stride += 1; - if (mask_stride & 2) - mask_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); - mask_x = -(mask_width / 4) + lcg_rand_n (mask_width * 3 / 2); - mask_y = -(mask_height / 4) + lcg_rand_n (mask_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); - maskbuf = (uint32_t *)malloc (mask_stride * mask_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 < mask_stride * mask_height; i++) - *((uint8_t *)maskbuf + 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); - - mask_img = pixman_image_create_bits ( - PIXMAN_a8, mask_width, mask_height, maskbuf, mask_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); - - if (lcg_rand_n (4) > 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); - pixman_image_set_transform (src_img, &transform); - } - - if (lcg_rand_n (2) > 0) - { - mask_scale_x = -32768 * 3 + lcg_rand_N (65536 * 5); - mask_scale_y = -32768 * 3 + lcg_rand_N (65536 * 5); - mask_translate_x = lcg_rand_N (65536); - mask_translate_y = lcg_rand_N (65536); - pixman_transform_init_scale (&transform, mask_scale_x, mask_scale_y); - pixman_transform_translate (&transform, NULL, mask_translate_x, mask_translate_y); - pixman_image_set_transform (mask_img, &transform); - } - - switch (lcg_rand_n (4)) - { - case 0: - mask_repeat = PIXMAN_REPEAT_NONE; - break; - - case 1: - mask_repeat = PIXMAN_REPEAT_NORMAL; - break; - - case 2: - mask_repeat = PIXMAN_REPEAT_PAD; - break; - - case 3: - mask_repeat = PIXMAN_REPEAT_REFLECT; - break; - - default: - break; - } - pixman_image_set_repeat (mask_img, mask_repeat); - - 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 (lcg_rand_n (2)) - pixman_image_set_filter (mask_img, PIXMAN_FILTER_NEAREST, NULL, 0); - else - pixman_image_set_filter (mask_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 (mask_width); - clip_boxes[i].y1 = lcg_rand_n (mask_height); - clip_boxes[i].x2 = - clip_boxes[i].x1 + lcg_rand_n (mask_width - clip_boxes[i].x1); - clip_boxes[i].y2 = - clip_boxes[i].y1 + lcg_rand_n (mask_height - clip_boxes[i].y1); - - if (verbose) - { - printf ("mask 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 (mask_img, &clip); - pixman_image_set_source_clipping (mask_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); - } - - if (lcg_rand_n (2) == 0) - pixman_image_composite (op, src_img, NULL, dst_img, - src_x, src_y, 0, 0, dst_x, dst_y, w, h); - else - pixman_image_composite (op, src_img, mask_img, dst_img, - src_x, src_y, mask_x, mask_y, 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 (mask_img); - pixman_image_unref (dst_img); - - crc32 = compute_crc32 (0, dstbuf, dst_stride * dst_height); - free (srcbuf); - free (maskbuf); - 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("scaling", 8000000, 0x80DF1CB2, - test_composite, argc, argv); -} +/*
+ * Test program, which can detect some problems with nearest neighbour
+ * and bilinear scaling in pixman. Testing is done by running lots
+ * of random SRC and OVER compositing operations a8r8g8b8, x8a8r8g8b8
+ * and r5g6b5 color formats.
+ *
+ * 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 48
+#define MAX_SRC_HEIGHT 8
+#define MAX_DST_WIDTH 48
+#define MAX_DST_HEIGHT 8
+#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 * mask_img;
+ pixman_image_t * dst_img;
+ pixman_transform_t transform;
+ pixman_region16_t clip;
+ int src_width, src_height;
+ int mask_width, mask_height;
+ int dst_width, dst_height;
+ int src_stride, mask_stride, dst_stride;
+ int src_x, src_y;
+ int mask_x, mask_y;
+ int dst_x, dst_y;
+ int src_bpp;
+ int mask_bpp = 1;
+ int dst_bpp;
+ int w, h;
+ pixman_fixed_t scale_x = 65536, scale_y = 65536;
+ pixman_fixed_t translate_x = 0, translate_y = 0;
+ pixman_fixed_t mask_scale_x = 65536, mask_scale_y = 65536;
+ pixman_fixed_t mask_translate_x = 0, mask_translate_y = 0;
+ pixman_op_t op;
+ pixman_repeat_t repeat = PIXMAN_REPEAT_NONE;
+ pixman_repeat_t mask_repeat = PIXMAN_REPEAT_NONE;
+ pixman_format_code_t src_fmt, dst_fmt;
+ uint32_t * srcbuf;
+ uint32_t * dstbuf;
+ uint32_t * maskbuf;
+ 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;
+ switch (lcg_rand_n (3))
+ {
+ case 0:
+ op = PIXMAN_OP_SRC;
+ break;
+ case 1:
+ op = PIXMAN_OP_OVER;
+ break;
+ default:
+ op = PIXMAN_OP_ADD;
+ break;
+ }
+
+ src_width = lcg_rand_n (MAX_SRC_WIDTH) + 1;
+ src_height = lcg_rand_n (MAX_SRC_HEIGHT) + 1;
+
+ if (lcg_rand_n (2))
+ {
+ mask_width = lcg_rand_n (MAX_SRC_WIDTH) + 1;
+ mask_height = lcg_rand_n (MAX_SRC_HEIGHT) + 1;
+ }
+ else
+ {
+ mask_width = mask_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;
+ mask_stride = mask_width * mask_bpp + lcg_rand_n (MAX_STRIDE) * mask_bpp;
+ dst_stride = dst_width * dst_bpp + lcg_rand_n (MAX_STRIDE) * dst_bpp;
+
+ if (src_stride & 3)
+ src_stride += 2;
+
+ if (mask_stride & 1)
+ mask_stride += 1;
+ if (mask_stride & 2)
+ mask_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);
+ mask_x = -(mask_width / 4) + lcg_rand_n (mask_width * 3 / 2);
+ mask_y = -(mask_height / 4) + lcg_rand_n (mask_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);
+ maskbuf = (uint32_t *)malloc (mask_stride * mask_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 < mask_stride * mask_height; i++)
+ *((uint8_t *)maskbuf + 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);
+
+ mask_img = pixman_image_create_bits (
+ PIXMAN_a8, mask_width, mask_height, maskbuf, mask_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);
+
+ if (lcg_rand_n (4) > 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);
+ pixman_image_set_transform (src_img, &transform);
+ }
+
+ if (lcg_rand_n (2) > 0)
+ {
+ mask_scale_x = -32768 * 3 + lcg_rand_N (65536 * 5);
+ mask_scale_y = -32768 * 3 + lcg_rand_N (65536 * 5);
+ mask_translate_x = lcg_rand_N (65536);
+ mask_translate_y = lcg_rand_N (65536);
+ pixman_transform_init_scale (&transform, mask_scale_x, mask_scale_y);
+ pixman_transform_translate (&transform, NULL, mask_translate_x, mask_translate_y);
+ pixman_image_set_transform (mask_img, &transform);
+ }
+
+ switch (lcg_rand_n (4))
+ {
+ case 0:
+ mask_repeat = PIXMAN_REPEAT_NONE;
+ break;
+
+ case 1:
+ mask_repeat = PIXMAN_REPEAT_NORMAL;
+ break;
+
+ case 2:
+ mask_repeat = PIXMAN_REPEAT_PAD;
+ break;
+
+ case 3:
+ mask_repeat = PIXMAN_REPEAT_REFLECT;
+ break;
+
+ default:
+ break;
+ }
+ pixman_image_set_repeat (mask_img, mask_repeat);
+
+ 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 (lcg_rand_n (2))
+ pixman_image_set_filter (mask_img, PIXMAN_FILTER_NEAREST, NULL, 0);
+ else
+ pixman_image_set_filter (mask_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 (mask_width);
+ clip_boxes[i].y1 = lcg_rand_n (mask_height);
+ clip_boxes[i].x2 =
+ clip_boxes[i].x1 + lcg_rand_n (mask_width - clip_boxes[i].x1);
+ clip_boxes[i].y2 =
+ clip_boxes[i].y1 + lcg_rand_n (mask_height - clip_boxes[i].y1);
+
+ if (verbose)
+ {
+ printf ("mask 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 (mask_img, &clip);
+ pixman_image_set_source_clipping (mask_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);
+ }
+
+ if (lcg_rand_n (2) == 0)
+ pixman_image_composite (op, src_img, NULL, dst_img,
+ src_x, src_y, 0, 0, dst_x, dst_y, w, h);
+ else
+ pixman_image_composite (op, src_img, mask_img, dst_img,
+ src_x, src_y, mask_x, mask_y, 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 (mask_img);
+ pixman_image_unref (dst_img);
+
+ crc32 = compute_crc32 (0, dstbuf, dst_stride * dst_height);
+ free (srcbuf);
+ free (maskbuf);
+ 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("scaling", 8000000, 0x80DF1CB2,
+ test_composite, argc, argv);
+}
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