diff options
Diffstat (limited to 'libs/pixman-0.40.0/test/tolerance-test.c')
| -rw-r--r-- | libs/pixman-0.40.0/test/tolerance-test.c | 379 |
1 files changed, 379 insertions, 0 deletions
diff --git a/libs/pixman-0.40.0/test/tolerance-test.c b/libs/pixman-0.40.0/test/tolerance-test.c new file mode 100644 index 0000000..3c6e818 --- /dev/null +++ b/libs/pixman-0.40.0/test/tolerance-test.c @@ -0,0 +1,379 @@ +#include <assert.h> +#include <stdlib.h> +#include <stdio.h> +#include <float.h> +#include <math.h> +#include "utils.h" + +#define MAX_WIDTH 16 +#define MAX_HEIGHT 16 +#define MAX_STRIDE 4 + +static const pixman_format_code_t formats[] = +{ + PIXMAN_a2r10g10b10, + PIXMAN_x2r10g10b10, + PIXMAN_a8r8g8b8, + PIXMAN_a4r4g4b4, + PIXMAN_a2r2g2b2, + PIXMAN_r5g6b5, + PIXMAN_r3g3b2, +}; + +static const pixman_op_t operators[] = +{ + PIXMAN_OP_CLEAR, + PIXMAN_OP_SRC, + PIXMAN_OP_DST, + PIXMAN_OP_OVER, + PIXMAN_OP_OVER_REVERSE, + PIXMAN_OP_IN, + PIXMAN_OP_IN_REVERSE, + PIXMAN_OP_OUT, + PIXMAN_OP_OUT_REVERSE, + PIXMAN_OP_ATOP, + PIXMAN_OP_ATOP_REVERSE, + PIXMAN_OP_XOR, + PIXMAN_OP_ADD, + PIXMAN_OP_SATURATE, + + PIXMAN_OP_DISJOINT_CLEAR, + PIXMAN_OP_DISJOINT_SRC, + PIXMAN_OP_DISJOINT_DST, + PIXMAN_OP_DISJOINT_OVER, + PIXMAN_OP_DISJOINT_OVER_REVERSE, + PIXMAN_OP_DISJOINT_IN, + PIXMAN_OP_DISJOINT_IN_REVERSE, + PIXMAN_OP_DISJOINT_OUT, + PIXMAN_OP_DISJOINT_OUT_REVERSE, + PIXMAN_OP_DISJOINT_ATOP, + PIXMAN_OP_DISJOINT_ATOP_REVERSE, + PIXMAN_OP_DISJOINT_XOR, + + PIXMAN_OP_CONJOINT_CLEAR, + PIXMAN_OP_CONJOINT_SRC, + PIXMAN_OP_CONJOINT_DST, + PIXMAN_OP_CONJOINT_OVER, + PIXMAN_OP_CONJOINT_OVER_REVERSE, + PIXMAN_OP_CONJOINT_IN, + PIXMAN_OP_CONJOINT_IN_REVERSE, + PIXMAN_OP_CONJOINT_OUT, + PIXMAN_OP_CONJOINT_OUT_REVERSE, + PIXMAN_OP_CONJOINT_ATOP, + PIXMAN_OP_CONJOINT_ATOP_REVERSE, + PIXMAN_OP_CONJOINT_XOR, + + PIXMAN_OP_MULTIPLY, + PIXMAN_OP_SCREEN, + PIXMAN_OP_OVERLAY, + PIXMAN_OP_DARKEN, + PIXMAN_OP_LIGHTEN, + PIXMAN_OP_COLOR_DODGE, + PIXMAN_OP_COLOR_BURN, + PIXMAN_OP_HARD_LIGHT, + PIXMAN_OP_SOFT_LIGHT, + PIXMAN_OP_DIFFERENCE, + PIXMAN_OP_EXCLUSION, +}; + +static const pixman_dither_t dithers[] = +{ + PIXMAN_DITHER_ORDERED_BAYER_8, + PIXMAN_DITHER_ORDERED_BLUE_NOISE_64, +}; + +#define RANDOM_ELT(array) \ + (array[prng_rand_n (ARRAY_LENGTH (array))]) + +static void +free_bits (pixman_image_t *image, void *data) +{ + free (image->bits.bits); +} + +static pixman_image_t * +create_image (pixman_image_t **clone) +{ + pixman_format_code_t format = RANDOM_ELT (formats); + pixman_image_t *image; + int width = prng_rand_n (MAX_WIDTH); + int height = prng_rand_n (MAX_HEIGHT); + int stride = ((width * (PIXMAN_FORMAT_BPP (format) / 8)) + 3) & ~3; + uint32_t *bytes = malloc (stride * height); + + prng_randmemset (bytes, stride * height, RANDMEMSET_MORE_00_AND_FF); + + image = pixman_image_create_bits ( + format, width, height, bytes, stride); + + pixman_image_set_destroy_function (image, free_bits, NULL); + + assert (image); + + if (clone) + { + uint32_t *bytes_dup = malloc (stride * height); + + memcpy (bytes_dup, bytes, stride * height); + + *clone = pixman_image_create_bits ( + format, width, height, bytes_dup, stride); + + pixman_image_set_destroy_function (*clone, free_bits, NULL); + } + + return image; +} + +static pixman_bool_t +access (pixman_image_t *image, int x, int y, uint32_t *pixel) +{ + int bytes_per_pixel; + int stride; + uint8_t *location; + + if (x < 0 || x >= image->bits.width || y < 0 || y >= image->bits.height) + return FALSE; + + bytes_per_pixel = PIXMAN_FORMAT_BPP (image->bits.format) / 8; + stride = image->bits.rowstride * 4; + + location = (uint8_t *)image->bits.bits + y * stride + x * bytes_per_pixel; + + if (bytes_per_pixel == 4) + *pixel = *(uint32_t *)location; + else if (bytes_per_pixel == 2) + *pixel = *(uint16_t *)location; + else if (bytes_per_pixel == 1) + *pixel = *(uint8_t *)location; + else + assert (0); + + return TRUE; +} + +static void +get_color (pixel_checker_t *checker, + pixman_image_t *image, + int x, int y, + color_t *color, + uint32_t *pixel) +{ + if (!access (image, x, y, pixel)) + { + color->a = 0.0; + color->r = 0.0; + color->g = 0.0; + color->b = 0.0; + } + else + { + pixel_checker_convert_pixel_to_color ( + checker, *pixel, color); + } +} + +static pixman_bool_t +verify (int test_no, + pixman_op_t op, + pixman_image_t *source, + pixman_image_t *mask, + pixman_image_t *dest, + pixman_image_t *orig_dest, + int x, int y, + int width, int height, + pixman_bool_t component_alpha, + pixman_dither_t dither) +{ + pixel_checker_t dest_checker, src_checker, mask_checker; + int i, j; + + pixel_checker_init (&src_checker, source->bits.format); + pixel_checker_init (&dest_checker, dest->bits.format); + pixel_checker_init (&mask_checker, mask->bits.format); + + if (dest->bits.dither != PIXMAN_DITHER_NONE) + pixel_checker_allow_dither (&dest_checker); + + assert (dest->bits.format == orig_dest->bits.format); + + for (j = y; j < y + height; ++j) + { + for (i = x; i < x + width; ++i) + { + color_t src_color, mask_color, orig_dest_color, result; + uint32_t dest_pixel, orig_dest_pixel, src_pixel, mask_pixel; + + access (dest, i, j, &dest_pixel); + + get_color (&src_checker, + source, i - x, j - y, + &src_color, &src_pixel); + + get_color (&mask_checker, + mask, i - x, j - y, + &mask_color, &mask_pixel); + + get_color (&dest_checker, + orig_dest, i, j, + &orig_dest_color, &orig_dest_pixel); + + do_composite (op, + &src_color, &mask_color, &orig_dest_color, + &result, component_alpha); + + if (!pixel_checker_check (&dest_checker, dest_pixel, &result)) + { + int a, r, g, b; + + printf ("--------- Test 0x%x failed ---------\n", test_no); + + printf (" operator: %s (%s alpha)\n", operator_name (op), + component_alpha? "component" : "unified"); + printf (" dither: %s\n", dither_name (dither)); + printf (" dest_x, dest_y: %d %d\n", x, y); + printf (" width, height: %d %d\n", width, height); + printf (" source: format: %-14s size: %2d x %2d\n", + format_name (source->bits.format), + source->bits.width, source->bits.height); + printf (" mask: format: %-14s size: %2d x %2d\n", + format_name (mask->bits.format), + mask->bits.width, mask->bits.height); + printf (" dest: format: %-14s size: %2d x %2d\n", + format_name (dest->bits.format), + dest->bits.width, dest->bits.height); + printf (" -- Failed pixel: (%d, %d) --\n", i, j); + printf (" source ARGB: %f %f %f %f (pixel: %x)\n", + src_color.a, src_color.r, src_color.g, src_color.b, + src_pixel); + printf (" mask ARGB: %f %f %f %f (pixel: %x)\n", + mask_color.a, mask_color.r, mask_color.g, mask_color.b, + mask_pixel); + printf (" dest ARGB: %f %f %f %f (pixel: %x)\n", + orig_dest_color.a, orig_dest_color.r, orig_dest_color.g, orig_dest_color.b, + orig_dest_pixel); + printf (" expected ARGB: %f %f %f %f\n", + result.a, result.r, result.g, result.b); + + pixel_checker_get_min (&dest_checker, &result, &a, &r, &g, &b); + printf (" min acceptable: %8d %8d %8d %8d\n", a, r, g, b); + + pixel_checker_split_pixel (&dest_checker, dest_pixel, &a, &r, &g, &b); + printf (" got: %8d %8d %8d %8d (pixel: %x)\n", a, r, g, b, dest_pixel); + + pixel_checker_get_max (&dest_checker, &result, &a, &r, &g, &b); + printf (" max acceptable: %8d %8d %8d %8d\n", a, r, g, b); + printf ("\n"); + printf (" { %s,\n", operator_name (op)); + printf (" PIXMAN_%s,\t0x%x,\n", format_name (source->bits.format), src_pixel); + printf (" PIXMAN_%s,\t0x%x,\n", format_name (mask->bits.format), mask_pixel); + printf (" PIXMAN_%s,\t0x%x\n", format_name (dest->bits.format), orig_dest_pixel); + printf (" },\n"); + return FALSE; + } + } + } + + return TRUE; +} + +static pixman_bool_t +do_check (int i) +{ + pixman_image_t *source, *dest, *mask; + pixman_op_t op; + int x, y, width, height; + pixman_image_t *dest_copy; + pixman_bool_t result = TRUE; + pixman_bool_t component_alpha; + pixman_dither_t dither = PIXMAN_DITHER_NONE; + + prng_srand (i); + op = RANDOM_ELT (operators); + x = prng_rand_n (MAX_WIDTH); + y = prng_rand_n (MAX_HEIGHT); + width = prng_rand_n (MAX_WIDTH) + 4; + height = prng_rand_n (MAX_HEIGHT) + 4; + + source = create_image (NULL); + mask = create_image (NULL); + dest = create_image (&dest_copy); + + if (x >= dest->bits.width) + x = dest->bits.width / 2; + if (y >= dest->bits.height) + y = dest->bits.height / 2; + if (x + width > dest->bits.width) + width = dest->bits.width - x; + if (y + height > dest->bits.height) + height = dest->bits.height - y; + + if (prng_rand_n (2)) + { + dither = RANDOM_ELT (dithers); + pixman_image_set_dither (dest, dither); + } + + component_alpha = prng_rand_n (2); + + pixman_image_set_component_alpha (mask, component_alpha); + + pixman_image_composite32 (op, source, mask, dest, + 0, 0, 0, 0, + x, y, width, height); + + if (!verify (i, op, source, mask, dest, dest_copy, + x, y, width, height, component_alpha, + dither)) + { + result = FALSE; + } + + pixman_image_unref (source); + pixman_image_unref (mask); + pixman_image_unref (dest); + pixman_image_unref (dest_copy); + + return result; +} + +#define N_TESTS 10000000 + +int +main (int argc, const char *argv[]) +{ + int i; + int result = 0; + + if (argc == 2) + { + if (strcmp (argv[1], "--forever") == 0) + { + uint32_t n; + + prng_srand (time (0)); + + n = prng_rand(); + + for (;;) + do_check (n++); + } + else + { + do_check (strtol (argv[1], NULL, 0)); + } + } + else + { +#ifdef USE_OPENMP +# pragma omp parallel for default(none) reduction(|:result) +#endif + for (i = 0; i < N_TESTS; ++i) + { + if (!do_check (i)) + result |= 1; + } + } + + return result; +} |