diff options
Diffstat (limited to 'libs/pixman-0.40.0/test/composite-traps-test.c')
-rw-r--r-- | libs/pixman-0.40.0/test/composite-traps-test.c | 252 |
1 files changed, 252 insertions, 0 deletions
diff --git a/libs/pixman-0.40.0/test/composite-traps-test.c b/libs/pixman-0.40.0/test/composite-traps-test.c new file mode 100644 index 0000000..86a0355 --- /dev/null +++ b/libs/pixman-0.40.0/test/composite-traps-test.c @@ -0,0 +1,252 @@ +/* Based loosely on scaling-test */ + +#include <stdlib.h> +#include <stdio.h> +#include "utils.h" + +#define MAX_SRC_WIDTH 48 +#define MAX_SRC_HEIGHT 48 +#define MAX_DST_WIDTH 48 +#define MAX_DST_HEIGHT 48 +#define MAX_STRIDE 4 + +static pixman_format_code_t formats[] = +{ + PIXMAN_a8r8g8b8, PIXMAN_a8, PIXMAN_r5g6b5, PIXMAN_a1, PIXMAN_a4 +}; + +static pixman_format_code_t mask_formats[] = +{ + PIXMAN_a1, PIXMAN_a4, PIXMAN_a8, +}; + +static pixman_op_t operators[] = +{ + PIXMAN_OP_OVER, PIXMAN_OP_ADD, PIXMAN_OP_SRC, PIXMAN_OP_IN +}; + +#define RANDOM_ELT(array) \ + ((array)[prng_rand_n(ARRAY_LENGTH((array)))]) + +static void +destroy_bits (pixman_image_t *image, void *data) +{ + fence_free (data); +} + +static pixman_fixed_t +random_fixed (int n) +{ + return prng_rand_n (n << 16); +} + +/* + * 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_region16_t clip; + int dst_width, dst_height; + int dst_stride; + int dst_x, dst_y; + int dst_bpp; + pixman_op_t op; + uint32_t * dst_bits; + uint32_t crc32; + pixman_format_code_t mask_format, dst_format; + pixman_trapezoid_t *traps; + int src_x, src_y; + int n_traps; + + static pixman_color_t colors[] = + { + { 0xffff, 0xffff, 0xffff, 0xffff }, + { 0x0000, 0x0000, 0x0000, 0x0000 }, + { 0xabcd, 0xabcd, 0x0000, 0xabcd }, + { 0x0000, 0x0000, 0x0000, 0xffff }, + { 0x0101, 0x0101, 0x0101, 0x0101 }, + { 0x7777, 0x6666, 0x5555, 0x9999 }, + }; + + FLOAT_REGS_CORRUPTION_DETECTOR_START (); + + prng_srand (testnum); + + op = RANDOM_ELT (operators); + mask_format = RANDOM_ELT (mask_formats); + + /* Create source image */ + + if (prng_rand_n (4) == 0) + { + src_img = pixman_image_create_solid_fill ( + &(colors[prng_rand_n (ARRAY_LENGTH (colors))])); + + src_x = 10; + src_y = 234; + } + else + { + pixman_format_code_t src_format = RANDOM_ELT(formats); + int src_bpp = (PIXMAN_FORMAT_BPP (src_format) + 7) / 8; + int src_width = prng_rand_n (MAX_SRC_WIDTH) + 1; + int src_height = prng_rand_n (MAX_SRC_HEIGHT) + 1; + int src_stride = src_width * src_bpp + prng_rand_n (MAX_STRIDE) * src_bpp; + uint32_t *bits, *orig; + + src_x = -(src_width / 4) + prng_rand_n (src_width * 3 / 2); + src_y = -(src_height / 4) + prng_rand_n (src_height * 3 / 2); + + src_stride = (src_stride + 3) & ~3; + + orig = bits = (uint32_t *)make_random_bytes (src_stride * src_height); + + if (prng_rand_n (2) == 0) + { + bits += (src_stride / 4) * (src_height - 1); + src_stride = - src_stride; + } + + src_img = pixman_image_create_bits ( + src_format, src_width, src_height, bits, src_stride); + + pixman_image_set_destroy_function (src_img, destroy_bits, orig); + + if (prng_rand_n (8) == 0) + { + pixman_box16_t clip_boxes[2]; + int n = prng_rand_n (2) + 1; + + for (i = 0; i < n; i++) + { + clip_boxes[i].x1 = prng_rand_n (src_width); + clip_boxes[i].y1 = prng_rand_n (src_height); + clip_boxes[i].x2 = + clip_boxes[i].x1 + prng_rand_n (src_width - clip_boxes[i].x1); + clip_boxes[i].y2 = + clip_boxes[i].y1 + prng_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); + } + + image_endian_swap (src_img); + } + + /* Create destination image */ + { + dst_format = RANDOM_ELT(formats); + dst_bpp = (PIXMAN_FORMAT_BPP (dst_format) + 7) / 8; + dst_width = prng_rand_n (MAX_DST_WIDTH) + 1; + dst_height = prng_rand_n (MAX_DST_HEIGHT) + 1; + dst_stride = dst_width * dst_bpp + prng_rand_n (MAX_STRIDE) * dst_bpp; + dst_stride = (dst_stride + 3) & ~3; + + dst_bits = (uint32_t *)make_random_bytes (dst_stride * dst_height); + + if (prng_rand_n (2) == 0) + { + dst_bits += (dst_stride / 4) * (dst_height - 1); + dst_stride = - dst_stride; + } + + dst_x = -(dst_width / 4) + prng_rand_n (dst_width * 3 / 2); + dst_y = -(dst_height / 4) + prng_rand_n (dst_height * 3 / 2); + + dst_img = pixman_image_create_bits ( + dst_format, dst_width, dst_height, dst_bits, dst_stride); + + image_endian_swap (dst_img); + } + + /* Create traps */ + { + int i; + + n_traps = prng_rand_n (25); + traps = fence_malloc (n_traps * sizeof (pixman_trapezoid_t)); + + for (i = 0; i < n_traps; ++i) + { + pixman_trapezoid_t *t = &(traps[i]); + + t->top = random_fixed (MAX_DST_HEIGHT) - MAX_DST_HEIGHT / 2; + t->bottom = t->top + random_fixed (MAX_DST_HEIGHT); + t->left.p1.x = random_fixed (MAX_DST_WIDTH) - MAX_DST_WIDTH / 2; + t->left.p1.y = t->top - random_fixed (50); + t->left.p2.x = random_fixed (MAX_DST_WIDTH) - MAX_DST_WIDTH / 2; + t->left.p2.y = t->bottom + random_fixed (50); + t->right.p1.x = t->left.p1.x + random_fixed (MAX_DST_WIDTH); + t->right.p1.y = t->top - random_fixed (50); + t->right.p2.x = t->left.p2.x + random_fixed (MAX_DST_WIDTH); + t->right.p2.y = t->bottom - random_fixed (50); + } + } + + if (prng_rand_n (8) == 0) + { + pixman_box16_t clip_boxes[2]; + int n = prng_rand_n (2) + 1; + for (i = 0; i < n; i++) + { + clip_boxes[i].x1 = prng_rand_n (dst_width); + clip_boxes[i].y1 = prng_rand_n (dst_height); + clip_boxes[i].x2 = + clip_boxes[i].x1 + prng_rand_n (dst_width - clip_boxes[i].x1); + clip_boxes[i].y2 = + clip_boxes[i].y1 + prng_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_composite_trapezoids (op, src_img, dst_img, mask_format, + src_x, src_y, dst_x, dst_y, n_traps, traps); + + crc32 = compute_crc32_for_image (0, dst_img); + + if (verbose) + print_image (dst_img); + + if (dst_stride < 0) + dst_bits += (dst_stride / 4) * (dst_height - 1); + + fence_free (dst_bits); + + pixman_image_unref (src_img); + pixman_image_unref (dst_img); + fence_free (traps); + + FLOAT_REGS_CORRUPTION_DETECTOR_FINISH (); + return crc32; +} + +int +main (int argc, const char *argv[]) +{ + return fuzzer_test_main("composite traps", 40000, 0xAF41D210, + test_composite, argc, argv); +} |