diff options
Diffstat (limited to 'pixman/test/utils.c')
| -rw-r--r-- | pixman/test/utils.c | 36 |
1 files changed, 35 insertions, 1 deletions
diff --git a/pixman/test/utils.c b/pixman/test/utils.c index 563b33d52..85b58d038 100644 --- a/pixman/test/utils.c +++ b/pixman/test/utils.c @@ -1,6 +1,7 @@ #define _GNU_SOURCE #include "utils.h" +#include <math.h> #include <signal.h> #include <stdlib.h> @@ -765,6 +766,24 @@ aligned_malloc (size_t align, size_t size) (((c) >> 8) & 0xff) * 301 + \ (((c) ) & 0xff) * 58) >> 2)) +double +convert_srgb_to_linear (double c) +{ + if (c <= 0.04045) + return c / 12.92; + else + return powf ((c + 0.055) / 1.055, 2.4); +} + +double +convert_linear_to_srgb (double c) +{ + if (c <= 0.0031308) + return c * 12.92; + else + return 1.055 * powf (c, 1.0/2.4) - 0.055; +} + void initialize_palette (pixman_indexed_t *palette, uint32_t depth, int is_rgb) { @@ -868,6 +887,7 @@ pixel_checker_init (pixel_checker_t *checker, pixman_format_code_t format) break; case PIXMAN_TYPE_ARGB: + case PIXMAN_TYPE_ARGB_SRGB: checker->bs = 0; checker->gs = checker->bs + PIXMAN_FORMAT_B (format); checker->rs = checker->gs + PIXMAN_FORMAT_G (format); @@ -968,11 +988,25 @@ pixel_checker_get_min (const pixel_checker_t *checker, color_t *color, pixman_bool_t pixel_checker_check (const pixel_checker_t *checker, uint32_t pixel, - color_t *color) + color_t *color_in) { int32_t a_lo, a_hi, r_lo, r_hi, g_lo, g_hi, b_lo, b_hi; int32_t ai, ri, gi, bi; pixman_bool_t result; + color_t tmp, *color; + + if (PIXMAN_FORMAT_TYPE (checker->format) == PIXMAN_TYPE_ARGB_SRGB) + { + tmp.a = color_in->a; + tmp.r = convert_linear_to_srgb (color_in->r); + tmp.g = convert_linear_to_srgb (color_in->g); + tmp.b = convert_linear_to_srgb (color_in->b); + color = &tmp; + } + else + { + color = color_in; + } pixel_checker_get_min (checker, color, &a_lo, &r_lo, &g_lo, &b_lo); pixel_checker_get_max (checker, color, &a_hi, &r_hi, &g_hi, &b_hi); |