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author | marha <marha@users.sourceforge.net> | 2013-02-13 09:18:19 +0100 |
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committer | marha <marha@users.sourceforge.net> | 2013-02-13 09:18:19 +0100 |
commit | ad7d3734fae59b63a1afe2d8e11411ac32a40f30 (patch) | |
tree | 80af4bcc936f46b31ba17a71905f20deeca066f5 /pixman/test/utils.c | |
parent | c4583f59d8460f05ee211c2f8ed6208addfe3087 (diff) | |
parent | 8add148a4cf71b8bdab05a6b7e14824b5062da5e (diff) | |
download | vcxsrv-ad7d3734fae59b63a1afe2d8e11411ac32a40f30.tar.gz vcxsrv-ad7d3734fae59b63a1afe2d8e11411ac32a40f30.tar.bz2 vcxsrv-ad7d3734fae59b63a1afe2d8e11411ac32a40f30.zip |
Merge remote-tracking branch 'origin/released'
* origin/released:
mesa pixman xserver git update 13 Feb 2013
Diffstat (limited to 'pixman/test/utils.c')
-rw-r--r-- | pixman/test/utils.c | 332 |
1 files changed, 331 insertions, 1 deletions
diff --git a/pixman/test/utils.c b/pixman/test/utils.c index ba7e35335..3d1ba22ae 100644 --- a/pixman/test/utils.c +++ b/pixman/test/utils.c @@ -1033,6 +1033,283 @@ format_name (pixman_format_code_t format) }; static double +calc_op (pixman_op_t op, double src, double dst, double srca, double dsta) +{ +#define mult_chan(src, dst, Fa, Fb) MIN ((src) * (Fa) + (dst) * (Fb), 1.0) + + double Fa, Fb; + + switch (op) + { + case PIXMAN_OP_CLEAR: + case PIXMAN_OP_DISJOINT_CLEAR: + case PIXMAN_OP_CONJOINT_CLEAR: + return mult_chan (src, dst, 0.0, 0.0); + + case PIXMAN_OP_SRC: + case PIXMAN_OP_DISJOINT_SRC: + case PIXMAN_OP_CONJOINT_SRC: + return mult_chan (src, dst, 1.0, 0.0); + + case PIXMAN_OP_DST: + case PIXMAN_OP_DISJOINT_DST: + case PIXMAN_OP_CONJOINT_DST: + return mult_chan (src, dst, 0.0, 1.0); + + case PIXMAN_OP_OVER: + return mult_chan (src, dst, 1.0, 1.0 - srca); + + case PIXMAN_OP_OVER_REVERSE: + return mult_chan (src, dst, 1.0 - dsta, 1.0); + + case PIXMAN_OP_IN: + return mult_chan (src, dst, dsta, 0.0); + + case PIXMAN_OP_IN_REVERSE: + return mult_chan (src, dst, 0.0, srca); + + case PIXMAN_OP_OUT: + return mult_chan (src, dst, 1.0 - dsta, 0.0); + + case PIXMAN_OP_OUT_REVERSE: + return mult_chan (src, dst, 0.0, 1.0 - srca); + + case PIXMAN_OP_ATOP: + return mult_chan (src, dst, dsta, 1.0 - srca); + + case PIXMAN_OP_ATOP_REVERSE: + return mult_chan (src, dst, 1.0 - dsta, srca); + + case PIXMAN_OP_XOR: + return mult_chan (src, dst, 1.0 - dsta, 1.0 - srca); + + case PIXMAN_OP_ADD: + return mult_chan (src, dst, 1.0, 1.0); + + case PIXMAN_OP_SATURATE: + case PIXMAN_OP_DISJOINT_OVER_REVERSE: + if (srca == 0.0) + Fa = 1.0; + else + Fa = MIN (1.0, (1.0 - dsta) / srca); + return mult_chan (src, dst, Fa, 1.0); + + case PIXMAN_OP_DISJOINT_OVER: + if (dsta == 0.0) + Fb = 1.0; + else + Fb = MIN (1.0, (1.0 - srca) / dsta); + return mult_chan (src, dst, 1.0, Fb); + + case PIXMAN_OP_DISJOINT_IN: + if (srca == 0.0) + Fa = 0.0; + else + Fa = MAX (0.0, 1.0 - (1.0 - dsta) / srca); + return mult_chan (src, dst, Fa, 0.0); + + case PIXMAN_OP_DISJOINT_IN_REVERSE: + if (dsta == 0.0) + Fb = 0.0; + else + Fb = MAX (0.0, 1.0 - (1.0 - srca) / dsta); + return mult_chan (src, dst, 0.0, Fb); + + case PIXMAN_OP_DISJOINT_OUT: + if (srca == 0.0) + Fa = 1.0; + else + Fa = MIN (1.0, (1.0 - dsta) / srca); + return mult_chan (src, dst, Fa, 0.0); + + case PIXMAN_OP_DISJOINT_OUT_REVERSE: + if (dsta == 0.0) + Fb = 1.0; + else + Fb = MIN (1.0, (1.0 - srca) / dsta); + return mult_chan (src, dst, 0.0, Fb); + + case PIXMAN_OP_DISJOINT_ATOP: + if (srca == 0.0) + Fa = 0.0; + else + Fa = MAX (0.0, 1.0 - (1.0 - dsta) / srca); + if (dsta == 0.0) + Fb = 1.0; + else + Fb = MIN (1.0, (1.0 - srca) / dsta); + return mult_chan (src, dst, Fa, Fb); + + case PIXMAN_OP_DISJOINT_ATOP_REVERSE: + if (srca == 0.0) + Fa = 1.0; + else + Fa = MIN (1.0, (1.0 - dsta) / srca); + if (dsta == 0.0) + Fb = 0.0; + else + Fb = MAX (0.0, 1.0 - (1.0 - srca) / dsta); + return mult_chan (src, dst, Fa, Fb); + + case PIXMAN_OP_DISJOINT_XOR: + if (srca == 0.0) + Fa = 1.0; + else + Fa = MIN (1.0, (1.0 - dsta) / srca); + if (dsta == 0.0) + Fb = 1.0; + else + Fb = MIN (1.0, (1.0 - srca) / dsta); + return mult_chan (src, dst, Fa, Fb); + + case PIXMAN_OP_CONJOINT_OVER: + if (dsta == 0.0) + Fb = 0.0; + else + Fb = MAX (0.0, 1.0 - srca / dsta); + return mult_chan (src, dst, 1.0, Fb); + + case PIXMAN_OP_CONJOINT_OVER_REVERSE: + if (srca == 0.0) + Fa = 0.0; + else + Fa = MAX (0.0, 1.0 - dsta / srca); + return mult_chan (src, dst, Fa, 1.0); + + case PIXMAN_OP_CONJOINT_IN: + if (srca == 0.0) + Fa = 1.0; + else + Fa = MIN (1.0, dsta / srca); + return mult_chan (src, dst, Fa, 0.0); + + case PIXMAN_OP_CONJOINT_IN_REVERSE: + if (dsta == 0.0) + Fb = 1.0; + else + Fb = MIN (1.0, srca / dsta); + return mult_chan (src, dst, 0.0, Fb); + + case PIXMAN_OP_CONJOINT_OUT: + if (srca == 0.0) + Fa = 0.0; + else + Fa = MAX (0.0, 1.0 - dsta / srca); + return mult_chan (src, dst, Fa, 0.0); + + case PIXMAN_OP_CONJOINT_OUT_REVERSE: + if (dsta == 0.0) + Fb = 0.0; + else + Fb = MAX (0.0, 1.0 - srca / dsta); + return mult_chan (src, dst, 0.0, Fb); + + case PIXMAN_OP_CONJOINT_ATOP: + if (srca == 0.0) + Fa = 1.0; + else + Fa = MIN (1.0, dsta / srca); + if (dsta == 0.0) + Fb = 0.0; + else + Fb = MAX (0.0, 1.0 - srca / dsta); + return mult_chan (src, dst, Fa, Fb); + + case PIXMAN_OP_CONJOINT_ATOP_REVERSE: + if (srca == 0.0) + Fa = 0.0; + else + Fa = MAX (0.0, 1.0 - dsta / srca); + if (dsta == 0.0) + Fb = 1.0; + else + Fb = MIN (1.0, srca / dsta); + return mult_chan (src, dst, Fa, Fb); + + case PIXMAN_OP_CONJOINT_XOR: + if (srca == 0.0) + Fa = 0.0; + else + Fa = MAX (0.0, 1.0 - dsta / srca); + if (dsta == 0.0) + Fb = 0.0; + else + Fb = MAX (0.0, 1.0 - srca / dsta); + return mult_chan (src, dst, Fa, Fb); + + case PIXMAN_OP_MULTIPLY: + case PIXMAN_OP_SCREEN: + case PIXMAN_OP_OVERLAY: + case PIXMAN_OP_DARKEN: + case PIXMAN_OP_LIGHTEN: + case PIXMAN_OP_COLOR_DODGE: + case PIXMAN_OP_COLOR_BURN: + case PIXMAN_OP_HARD_LIGHT: + case PIXMAN_OP_SOFT_LIGHT: + case PIXMAN_OP_DIFFERENCE: + case PIXMAN_OP_EXCLUSION: + case PIXMAN_OP_HSL_HUE: + case PIXMAN_OP_HSL_SATURATION: + case PIXMAN_OP_HSL_COLOR: + case PIXMAN_OP_HSL_LUMINOSITY: + default: + abort(); + return 0; /* silence MSVC */ + } +#undef mult_chan +} + +void +do_composite (pixman_op_t op, + const color_t *src, + const color_t *mask, + const color_t *dst, + color_t *result, + pixman_bool_t component_alpha) +{ + color_t srcval, srcalpha; + + if (mask == NULL) + { + srcval = *src; + + srcalpha.r = src->a; + srcalpha.g = src->a; + srcalpha.b = src->a; + srcalpha.a = src->a; + } + else if (component_alpha) + { + srcval.r = src->r * mask->r; + srcval.g = src->g * mask->g; + srcval.b = src->b * mask->b; + srcval.a = src->a * mask->a; + + srcalpha.r = src->a * mask->r; + srcalpha.g = src->a * mask->g; + srcalpha.b = src->a * mask->b; + srcalpha.a = src->a * mask->a; + } + else + { + srcval.r = src->r * mask->a; + srcval.g = src->g * mask->a; + srcval.b = src->b * mask->a; + srcval.a = src->a * mask->a; + + srcalpha.r = src->a * mask->a; + srcalpha.g = src->a * mask->a; + srcalpha.b = src->a * mask->a; + srcalpha.a = src->a * mask->a; + } + + result->r = calc_op (op, srcval.r, dst->r, srcalpha.r, dst->a); + result->g = calc_op (op, srcval.g, dst->g, srcalpha.g, dst->a); + result->b = calc_op (op, srcval.b, dst->b, srcalpha.b, dst->a); + result->a = calc_op (op, srcval.a, dst->a, srcalpha.a, dst->a); +} + +static double round_channel (double p, int m) { int t; @@ -1144,6 +1421,59 @@ pixel_checker_split_pixel (const pixel_checker_t *checker, uint32_t pixel, *b = (pixel & checker->bm) >> checker->bs; } +void +pixel_checker_get_masks (const pixel_checker_t *checker, + uint32_t *am, + uint32_t *rm, + uint32_t *gm, + uint32_t *bm) +{ + if (am) + *am = checker->am; + if (rm) + *rm = checker->rm; + if (gm) + *gm = checker->gm; + if (bm) + *bm = checker->bm; +} + +void +pixel_checker_convert_pixel_to_color (const pixel_checker_t *checker, + uint32_t pixel, color_t *color) +{ + int a, r, g, b; + + pixel_checker_split_pixel (checker, pixel, &a, &r, &g, &b); + + if (checker->am == 0) + color->a = 1.0; + else + color->a = a / (double)(checker->am >> checker->as); + + if (checker->rm == 0) + color->r = 0.0; + else + color->r = r / (double)(checker->rm >> checker->rs); + + if (checker->gm == 0) + color->g = 0.0; + else + color->g = g / (double)(checker->gm >> checker->gs); + + if (checker->bm == 0) + color->b = 0.0; + else + color->b = b / (double)(checker->bm >> checker->bs); + + if (PIXMAN_FORMAT_TYPE (checker->format) == PIXMAN_TYPE_ARGB_SRGB) + { + color->r = convert_srgb_to_linear (color->r); + color->g = convert_srgb_to_linear (color->g); + color->b = convert_srgb_to_linear (color->b); + } +} + static int32_t convert (double v, uint32_t width, uint32_t mask, uint32_t shift, double def) { @@ -1183,7 +1513,7 @@ get_limits (const pixel_checker_t *checker, double limit, /* The acceptable deviation in units of [0.0, 1.0] */ -#define DEVIATION (0.004) +#define DEVIATION (0.0064) void pixel_checker_get_max (const pixel_checker_t *checker, color_t *color, |