From 8fd06c45853cb2300105db84e4b722f0e2dad8d2 Mon Sep 17 00:00:00 2001 From: marha Date: Wed, 22 Dec 2010 13:20:05 +0000 Subject: xserver libX11 libXdmcp pixman git update 22-12-2010 --- pixman/pixman/pixman-combine.c.template | 4904 ++++++++++++++++--------------- pixman/test/Makefile.am | 230 +- pixman/test/pdf-op-test.c | 84 + 3 files changed, 2662 insertions(+), 2556 deletions(-) create mode 100644 pixman/test/pdf-op-test.c (limited to 'pixman') diff --git a/pixman/pixman/pixman-combine.c.template b/pixman/pixman/pixman-combine.c.template index 9b84de4bc..f5dd8e120 100644 --- a/pixman/pixman/pixman-combine.c.template +++ b/pixman/pixman/pixman-combine.c.template @@ -1,2443 +1,2461 @@ -#ifdef HAVE_CONFIG_H -#include -#endif - -#include -#include - -#include "pixman-private.h" - -#include "pixman-combine.h" - -/*** per channel helper functions ***/ - -static void -combine_mask_ca (comp4_t *src, comp4_t *mask) -{ - comp4_t a = *mask; - - comp4_t x; - comp2_t xa; - - if (!a) - { - *(src) = 0; - return; - } - - x = *(src); - if (a == ~0) - { - x = x >> A_SHIFT; - x |= x << G_SHIFT; - x |= x << R_SHIFT; - *(mask) = x; - return; - } - - xa = x >> A_SHIFT; - UNcx4_MUL_UNcx4 (x, a); - *(src) = x; - - UNcx4_MUL_UNc (a, xa); - *(mask) = a; -} - -static void -combine_mask_value_ca (comp4_t *src, const comp4_t *mask) -{ - comp4_t a = *mask; - comp4_t x; - - if (!a) - { - *(src) = 0; - return; - } - - if (a == ~0) - return; - - x = *(src); - UNcx4_MUL_UNcx4 (x, a); - *(src) = x; -} - -static void -combine_mask_alpha_ca (const comp4_t *src, comp4_t *mask) -{ - comp4_t a = *(mask); - comp4_t x; - - if (!a) - return; - - x = *(src) >> A_SHIFT; - if (x == MASK) - return; - - if (a == ~0) - { - x |= x << G_SHIFT; - x |= x << R_SHIFT; - *(mask) = x; - return; - } - - UNcx4_MUL_UNc (a, x); - *(mask) = a; -} - -/* - * There are two ways of handling alpha -- either as a single unified value or - * a separate value for each component, hence each macro must have two - * versions. The unified alpha version has a 'U' at the end of the name, - * the component version has a 'C'. Similarly, functions which deal with - * this difference will have two versions using the same convention. - */ - -/* - * All of the composing functions - */ - -static force_inline comp4_t -combine_mask (const comp4_t *src, const comp4_t *mask, int i) -{ - comp4_t s, m; - - if (mask) - { - m = *(mask + i) >> A_SHIFT; - - if (!m) - return 0; - } - - s = *(src + i); - - if (mask) - UNcx4_MUL_UNc (s, m); - - return s; -} - -static void -combine_clear (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - memset (dest, 0, width * sizeof(comp4_t)); -} - -static void -combine_dst (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - return; -} - -static void -combine_src_u (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - int i; - - if (!mask) - memcpy (dest, src, width * sizeof (comp4_t)); - else - { - for (i = 0; i < width; ++i) - { - comp4_t s = combine_mask (src, mask, i); - - *(dest + i) = s; - } - } -} - -/* if the Src is opaque, call combine_src_u */ -static void -combine_over_u (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - int i; - - for (i = 0; i < width; ++i) - { - comp4_t s = combine_mask (src, mask, i); - comp4_t d = *(dest + i); - comp4_t ia = ALPHA_c (~s); - - UNcx4_MUL_UNc_ADD_UNcx4 (d, ia, s); - *(dest + i) = d; - } -} - -/* if the Dst is opaque, this is a noop */ -static void -combine_over_reverse_u (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - int i; - - for (i = 0; i < width; ++i) - { - comp4_t s = combine_mask (src, mask, i); - comp4_t d = *(dest + i); - comp4_t ia = ALPHA_c (~*(dest + i)); - UNcx4_MUL_UNc_ADD_UNcx4 (s, ia, d); - *(dest + i) = s; - } -} - -/* if the Dst is opaque, call combine_src_u */ -static void -combine_in_u (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - int i; - - for (i = 0; i < width; ++i) - { - comp4_t s = combine_mask (src, mask, i); - comp4_t a = ALPHA_c (*(dest + i)); - UNcx4_MUL_UNc (s, a); - *(dest + i) = s; - } -} - -/* if the Src is opaque, this is a noop */ -static void -combine_in_reverse_u (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - int i; - - for (i = 0; i < width; ++i) - { - comp4_t s = combine_mask (src, mask, i); - comp4_t d = *(dest + i); - comp4_t a = ALPHA_c (s); - UNcx4_MUL_UNc (d, a); - *(dest + i) = d; - } -} - -/* if the Dst is opaque, call combine_clear */ -static void -combine_out_u (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - int i; - - for (i = 0; i < width; ++i) - { - comp4_t s = combine_mask (src, mask, i); - comp4_t a = ALPHA_c (~*(dest + i)); - UNcx4_MUL_UNc (s, a); - *(dest + i) = s; - } -} - -/* if the Src is opaque, call combine_clear */ -static void -combine_out_reverse_u (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - int i; - - for (i = 0; i < width; ++i) - { - comp4_t s = combine_mask (src, mask, i); - comp4_t d = *(dest + i); - comp4_t a = ALPHA_c (~s); - UNcx4_MUL_UNc (d, a); - *(dest + i) = d; - } -} - -/* if the Src is opaque, call combine_in_u */ -/* if the Dst is opaque, call combine_over_u */ -/* if both the Src and Dst are opaque, call combine_src_u */ -static void -combine_atop_u (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - int i; - - for (i = 0; i < width; ++i) - { - comp4_t s = combine_mask (src, mask, i); - comp4_t d = *(dest + i); - comp4_t dest_a = ALPHA_c (d); - comp4_t src_ia = ALPHA_c (~s); - - UNcx4_MUL_UNc_ADD_UNcx4_MUL_UNc (s, dest_a, d, src_ia); - *(dest + i) = s; - } -} - -/* if the Src is opaque, call combine_over_reverse_u */ -/* if the Dst is opaque, call combine_in_reverse_u */ -/* if both the Src and Dst are opaque, call combine_dst_u */ -static void -combine_atop_reverse_u (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - int i; - - for (i = 0; i < width; ++i) - { - comp4_t s = combine_mask (src, mask, i); - comp4_t d = *(dest + i); - comp4_t src_a = ALPHA_c (s); - comp4_t dest_ia = ALPHA_c (~d); - - UNcx4_MUL_UNc_ADD_UNcx4_MUL_UNc (s, dest_ia, d, src_a); - *(dest + i) = s; - } -} - -/* if the Src is opaque, call combine_over_u */ -/* if the Dst is opaque, call combine_over_reverse_u */ -/* if both the Src and Dst are opaque, call combine_clear */ -static void -combine_xor_u (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - int i; - - for (i = 0; i < width; ++i) - { - comp4_t s = combine_mask (src, mask, i); - comp4_t d = *(dest + i); - comp4_t src_ia = ALPHA_c (~s); - comp4_t dest_ia = ALPHA_c (~d); - - UNcx4_MUL_UNc_ADD_UNcx4_MUL_UNc (s, dest_ia, d, src_ia); - *(dest + i) = s; - } -} - -static void -combine_add_u (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - int i; - - for (i = 0; i < width; ++i) - { - comp4_t s = combine_mask (src, mask, i); - comp4_t d = *(dest + i); - UNcx4_ADD_UNcx4 (d, s); - *(dest + i) = d; - } -} - -/* if the Src is opaque, call combine_add_u */ -/* if the Dst is opaque, call combine_add_u */ -/* if both the Src and Dst are opaque, call combine_add_u */ -static void -combine_saturate_u (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - int i; - - for (i = 0; i < width; ++i) - { - comp4_t s = combine_mask (src, mask, i); - comp4_t d = *(dest + i); - comp2_t sa, da; - - sa = s >> A_SHIFT; - da = ~d >> A_SHIFT; - if (sa > da) - { - sa = DIV_UNc (da, sa); - UNcx4_MUL_UNc (s, sa); - } - ; - UNcx4_ADD_UNcx4 (d, s); - *(dest + i) = d; - } -} - -/* - * PDF blend modes: - * The following blend modes have been taken from the PDF ISO 32000 - * specification, which at this point in time is available from - * http://www.adobe.com/devnet/acrobat/pdfs/PDF32000_2008.pdf - * The relevant chapters are 11.3.5 and 11.3.6. - * The formula for computing the final pixel color given in 11.3.6 is: - * αr × Cr = (1 – αs) × αb × Cb + (1 – αb) × αs × Cs + αb × αs × B(Cb, Cs) - * with B() being the blend function. - * Note that OVER is a special case of this operation, using B(Cb, Cs) = Cs - * - * These blend modes should match the SVG filter draft specification, as - * it has been designed to mirror ISO 32000. Note that at the current point - * no released draft exists that shows this, as the formulas have not been - * updated yet after the release of ISO 32000. - * - * The default implementation here uses the PDF_SEPARABLE_BLEND_MODE and - * PDF_NON_SEPARABLE_BLEND_MODE macros, which take the blend function as an - * argument. Note that this implementation operates on premultiplied colors, - * while the PDF specification does not. Therefore the code uses the formula - * ar.Cra = (1 – as) . Dca + (1 – ad) . Sca + B(Dca, ad, Sca, as) - */ - -/* - * Multiply - * B(Dca, ad, Sca, as) = Dca.Sca - */ - -static void -combine_multiply_u (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - int i; - - for (i = 0; i < width; ++i) - { - comp4_t s = combine_mask (src, mask, i); - comp4_t d = *(dest + i); - comp4_t ss = s; - comp4_t src_ia = ALPHA_c (~s); - comp4_t dest_ia = ALPHA_c (~d); - - UNcx4_MUL_UNc_ADD_UNcx4_MUL_UNc (ss, dest_ia, d, src_ia); - UNcx4_MUL_UNcx4 (d, s); - UNcx4_ADD_UNcx4 (d, ss); - - *(dest + i) = d; - } -} - -static void -combine_multiply_ca (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - int i; - - for (i = 0; i < width; ++i) - { - comp4_t m = *(mask + i); - comp4_t s = *(src + i); - comp4_t d = *(dest + i); - comp4_t r = d; - comp4_t dest_ia = ALPHA_c (~d); - - combine_mask_value_ca (&s, &m); - - UNcx4_MUL_UNcx4_ADD_UNcx4_MUL_UNc (r, ~m, s, dest_ia); - UNcx4_MUL_UNcx4 (d, s); - UNcx4_ADD_UNcx4 (r, d); - - *(dest + i) = r; - } -} - -#define PDF_SEPARABLE_BLEND_MODE(name) \ - static void \ - combine_ ## name ## _u (pixman_implementation_t *imp, \ - pixman_op_t op, \ - comp4_t * dest, \ - const comp4_t * src, \ - const comp4_t * mask, \ - int width) \ - { \ - int i; \ - for (i = 0; i < width; ++i) { \ - comp4_t s = combine_mask (src, mask, i); \ - comp4_t d = *(dest + i); \ - comp1_t sa = ALPHA_c (s); \ - comp1_t isa = ~sa; \ - comp1_t da = ALPHA_c (d); \ - comp1_t ida = ~da; \ - comp4_t result; \ - \ - result = d; \ - UNcx4_MUL_UNc_ADD_UNcx4_MUL_UNc (result, isa, s, ida); \ - \ - *(dest + i) = result + \ - (DIV_ONE_UNc (sa * da) << A_SHIFT) + \ - (blend_ ## name (RED_c (d), da, RED_c (s), sa) << R_SHIFT) + \ - (blend_ ## name (GREEN_c (d), da, GREEN_c (s), sa) << G_SHIFT) + \ - (blend_ ## name (BLUE_c (d), da, BLUE_c (s), sa)); \ - } \ - } \ - \ - static void \ - combine_ ## name ## _ca (pixman_implementation_t *imp, \ - pixman_op_t op, \ - comp4_t * dest, \ - const comp4_t * src, \ - const comp4_t * mask, \ - int width) \ - { \ - int i; \ - for (i = 0; i < width; ++i) { \ - comp4_t m = *(mask + i); \ - comp4_t s = *(src + i); \ - comp4_t d = *(dest + i); \ - comp1_t da = ALPHA_c (d); \ - comp1_t ida = ~da; \ - comp4_t result; \ - \ - combine_mask_value_ca (&s, &m); \ - \ - result = d; \ - UNcx4_MUL_UNcx4_ADD_UNcx4_MUL_UNc (result, ~m, s, ida); \ - \ - result += \ - (DIV_ONE_UNc (ALPHA_c (m) * da) << A_SHIFT) + \ - (blend_ ## name (RED_c (d), da, RED_c (s), RED_c (m)) << R_SHIFT) + \ - (blend_ ## name (GREEN_c (d), da, GREEN_c (s), GREEN_c (m)) << G_SHIFT) + \ - (blend_ ## name (BLUE_c (d), da, BLUE_c (s), BLUE_c (m))); \ - \ - *(dest + i) = result; \ - } \ - } - -/* - * Screen - * B(Dca, ad, Sca, as) = Dca.sa + Sca.da - Dca.Sca - */ -static inline comp4_t -blend_screen (comp4_t dca, comp4_t da, comp4_t sca, comp4_t sa) -{ - return DIV_ONE_UNc (sca * da + dca * sa - sca * dca); -} - -PDF_SEPARABLE_BLEND_MODE (screen) - -/* - * Overlay - * B(Dca, Da, Sca, Sa) = - * if 2.Dca < Da - * 2.Sca.Dca - * otherwise - * Sa.Da - 2.(Da - Dca).(Sa - Sca) - */ -static inline comp4_t -blend_overlay (comp4_t dca, comp4_t da, comp4_t sca, comp4_t sa) -{ - comp4_t rca; - - if (2 * dca < da) - rca = 2 * sca * dca; - else - rca = sa * da - 2 * (da - dca) * (sa - sca); - return DIV_ONE_UNc (rca); -} - -PDF_SEPARABLE_BLEND_MODE (overlay) - -/* - * Darken - * B(Dca, Da, Sca, Sa) = min (Sca.Da, Dca.Sa) - */ -static inline comp4_t -blend_darken (comp4_t dca, comp4_t da, comp4_t sca, comp4_t sa) -{ - comp4_t s, d; - - s = sca * da; - d = dca * sa; - return DIV_ONE_UNc (s > d ? d : s); -} - -PDF_SEPARABLE_BLEND_MODE (darken) - -/* - * Lighten - * B(Dca, Da, Sca, Sa) = max (Sca.Da, Dca.Sa) - */ -static inline comp4_t -blend_lighten (comp4_t dca, comp4_t da, comp4_t sca, comp4_t sa) -{ - comp4_t s, d; - - s = sca * da; - d = dca * sa; - return DIV_ONE_UNc (s > d ? s : d); -} - -PDF_SEPARABLE_BLEND_MODE (lighten) - -/* - * Color dodge - * B(Dca, Da, Sca, Sa) = - * if Dca == 0 - * 0 - * if Sca == Sa - * Sa.Da - * otherwise - * Sa.Da. min (1, Dca / Da / (1 - Sca/Sa)) - */ -static inline comp4_t -blend_color_dodge (comp4_t dca, comp4_t da, comp4_t sca, comp4_t sa) -{ - if (sca >= sa) - { - return dca == 0 ? 0 : DIV_ONE_UNc (sa * da); - } - else - { - comp4_t rca = dca * sa / (sa - sca); - return DIV_ONE_UNc (sa * MIN (rca, da)); - } -} - -PDF_SEPARABLE_BLEND_MODE (color_dodge) - -/* - * Color burn - * B(Dca, Da, Sca, Sa) = - * if Dca == Da - * Sa.Da - * if Sca == 0 - * 0 - * otherwise - * Sa.Da.(1 - min (1, (1 - Dca/Da).Sa / Sca)) - */ -static inline comp4_t -blend_color_burn (comp4_t dca, comp4_t da, comp4_t sca, comp4_t sa) -{ - if (sca == 0) - { - return dca < da ? 0 : DIV_ONE_UNc (sa * da); - } - else - { - comp4_t rca = (da - dca) * sa / sca; - return DIV_ONE_UNc (sa * (MAX (rca, da) - rca)); - } -} - -PDF_SEPARABLE_BLEND_MODE (color_burn) - -/* - * Hard light - * B(Dca, Da, Sca, Sa) = - * if 2.Sca < Sa - * 2.Sca.Dca - * otherwise - * Sa.Da - 2.(Da - Dca).(Sa - Sca) - */ -static inline comp4_t -blend_hard_light (comp4_t dca, comp4_t da, comp4_t sca, comp4_t sa) -{ - if (2 * sca < sa) - return DIV_ONE_UNc (2 * sca * dca); - else - return DIV_ONE_UNc (sa * da - 2 * (da - dca) * (sa - sca)); -} - -PDF_SEPARABLE_BLEND_MODE (hard_light) - -/* - * Soft light - * B(Dca, Da, Sca, Sa) = - * if (2.Sca <= Sa) - * Dca.(Sa - (1 - Dca/Da).(2.Sca - Sa)) - * otherwise if Dca.4 <= Da - * Dca.(Sa + (2.Sca - Sa).((16.Dca/Da - 12).Dca/Da + 3) - * otherwise - * (Dca.Sa + (SQRT (Dca/Da).Da - Dca).(2.Sca - Sa)) - */ -static inline comp4_t -blend_soft_light (comp4_t dca_org, - comp4_t da_org, - comp4_t sca_org, - comp4_t sa_org) -{ - double dca = dca_org * (1.0 / MASK); - double da = da_org * (1.0 / MASK); - double sca = sca_org * (1.0 / MASK); - double sa = sa_org * (1.0 / MASK); - double rca; - - if (2 * sca < sa) - { - if (da == 0) - rca = dca * sa; - else - rca = dca * sa - dca * (da - dca) * (sa - 2 * sca) / da; - } - else if (da == 0) - { - rca = 0; - } - else if (4 * dca <= da) - { - rca = dca * sa + - (2 * sca - sa) * dca * ((16 * dca / da - 12) * dca / da + 3); - } - else - { - rca = dca * sa + (sqrt (dca * da) - dca) * (2 * sca - sa); - } - return rca * MASK + 0.5; -} - -PDF_SEPARABLE_BLEND_MODE (soft_light) - -/* - * Difference - * B(Dca, Da, Sca, Sa) = abs (Dca.Sa - Sca.Da) - */ -static inline comp4_t -blend_difference (comp4_t dca, comp4_t da, comp4_t sca, comp4_t sa) -{ - comp4_t dcasa = dca * sa; - comp4_t scada = sca * da; - - if (scada < dcasa) - return DIV_ONE_UNc (dcasa - scada); - else - return DIV_ONE_UNc (scada - dcasa); -} - -PDF_SEPARABLE_BLEND_MODE (difference) - -/* - * Exclusion - * B(Dca, Da, Sca, Sa) = (Sca.Da + Dca.Sa - 2.Sca.Dca) - */ - -/* This can be made faster by writing it directly and not using - * PDF_SEPARABLE_BLEND_MODE, but that's a performance optimization */ - -static inline comp4_t -blend_exclusion (comp4_t dca, comp4_t da, comp4_t sca, comp4_t sa) -{ - return DIV_ONE_UNc (sca * da + dca * sa - 2 * dca * sca); -} - -PDF_SEPARABLE_BLEND_MODE (exclusion) - -#undef PDF_SEPARABLE_BLEND_MODE - -/* - * PDF nonseperable blend modes are implemented using the following functions - * to operate in Hsl space, with Cmax, Cmid, Cmin referring to the max, mid - * and min value of the red, green and blue components. - * - * LUM (C) = 0.3 × Cred + 0.59 × Cgreen + 0.11 × Cblue - * - * clip_color (C): - * l = LUM (C) - * min = Cmin - * max = Cmax - * if n < 0.0 - * C = l + ( ( ( C – l ) × l ) ⁄ ( l – min ) ) - * if x > 1.0 - * C = l + ( ( ( C – l ) × ( 1 – l ) ) ⁄ ( max – l ) ) - * return C - * - * set_lum (C, l): - * d = l – LUM (C) - * C += d - * return clip_color (C) - * - * SAT (C) = CH_MAX (C) - CH_MIN (C) - * - * set_sat (C, s): - * if Cmax > Cmin - * Cmid = ( ( ( Cmid – Cmin ) × s ) ⁄ ( Cmax – Cmin ) ) - * Cmax = s - * else - * Cmid = Cmax = 0.0 - * Cmin = 0.0 - * return C - */ - -/* For premultiplied colors, we need to know what happens when C is - * multiplied by a real number. LUM and SAT are linear: - * - * LUM (r × C) = r × LUM (C) SAT (r * C) = r * SAT (C) - * - * If we extend clip_color with an extra argument a and change - * - * if x >= 1.0 - * - * into - * - * if x >= a - * - * then clip_color is also linear: - * - * r * clip_color (C, a) = clip_color (r_c, ra); - * - * for positive r. - * - * Similarly, we can extend set_lum with an extra argument that is just passed - * on to clip_color: - * - * r * set_lum ( C, l, a) - * - * = r × clip_color ( C + l - LUM (C), a) - * - * = clip_color ( r * C + r × l - r * LUM (C), r * a) - * - * = set_lum ( r * C, r * l, r * a) - * - * Finally, set_sat: - * - * r * set_sat (C, s) = set_sat (x * C, r * s) - * - * The above holds for all non-zero x, because they x'es in the fraction for - * C_mid cancel out. Specifically, it holds for x = r: - * - * r * set_sat (C, s) = set_sat (r_c, rs) - * - */ - -/* So, for the non-separable PDF blend modes, we have (using s, d for - * non-premultiplied colors, and S, D for premultiplied: - * - * Color: - * - * a_s * a_d * B(s, d) - * = a_s * a_d * set_lum (S/a_s, LUM (D/a_d), 1) - * = set_lum (S * a_d, a_s * LUM (D), a_s * a_d) - * - * - * Luminosity: - * - * a_s * a_d * B(s, d) - * = a_s * a_d * set_lum (D/a_d, LUM(S/a_s), 1) - * = set_lum (a_s * D, a_d * LUM(S), a_s * a_d) - * - * - * Saturation: - * - * a_s * a_d * B(s, d) - * = a_s * a_d * set_lum (set_sat (D/a_d, SAT (S/a_s)), LUM (D/a_d), 1) - * = set_lum (a_s * a_d * set_sat (D/a_d, SAT (S/a_s)), - * a_s * LUM (D), a_s * a_d) - * = set_lum (set_sat (a_s * D, a_d * SAT (S), a_s * LUM (D), a_s * a_d)) - * - * Hue: - * - * a_s * a_d * B(s, d) - * = a_s * a_d * set_lum (set_sat (S/a_s, SAT (D/a_d)), LUM (D/a_d), 1) - * = a_s * a_d * set_lum (set_sat (a_d * S, a_s * SAT (D)), - * a_s * LUM (D), a_s * a_d) - * - */ - -#define CH_MIN(c) (c[0] < c[1] ? (c[0] < c[2] ? c[0] : c[2]) : (c[1] < c[2] ? c[1] : c[2])) -#define CH_MAX(c) (c[0] > c[1] ? (c[0] > c[2] ? c[0] : c[2]) : (c[1] > c[2] ? c[1] : c[2])) -#define LUM(c) ((c[0] * 30 + c[1] * 59 + c[2] * 11) / 100) -#define SAT(c) (CH_MAX (c) - CH_MIN (c)) - -#define PDF_NON_SEPARABLE_BLEND_MODE(name) \ - static void \ - combine_ ## name ## _u (pixman_implementation_t *imp, \ - pixman_op_t op, \ - comp4_t *dest, \ - const comp4_t *src, \ - const comp4_t *mask, \ - int width) \ - { \ - int i; \ - for (i = 0; i < width; ++i) \ - { \ - comp4_t s = combine_mask (src, mask, i); \ - comp4_t d = *(dest + i); \ - comp1_t sa = ALPHA_c (s); \ - comp1_t isa = ~sa; \ - comp1_t da = ALPHA_c (d); \ - comp1_t ida = ~da; \ - comp4_t result; \ - comp4_t sc[3], dc[3], c[3]; \ - \ - result = d; \ - UNcx4_MUL_UNc_ADD_UNcx4_MUL_UNc (result, isa, s, ida); \ - dc[0] = RED_c (d); \ - sc[0] = RED_c (s); \ - dc[1] = GREEN_c (d); \ - sc[1] = GREEN_c (s); \ - dc[2] = BLUE_c (d); \ - sc[2] = BLUE_c (s); \ - blend_ ## name (c, dc, da, sc, sa); \ - \ - *(dest + i) = result + \ - (DIV_ONE_UNc (sa * da) << A_SHIFT) + \ - (DIV_ONE_UNc (c[0]) << R_SHIFT) + \ - (DIV_ONE_UNc (c[1]) << G_SHIFT) + \ - (DIV_ONE_UNc (c[2])); \ - } \ - } - -static void -set_lum (comp4_t dest[3], comp4_t src[3], comp4_t sa, comp4_t lum) -{ - double a, l, min, max; - double tmp[3]; - - a = sa * (1.0 / MASK); - - l = lum * (1.0 / MASK); - tmp[0] = src[0] * (1.0 / MASK); - tmp[1] = src[1] * (1.0 / MASK); - tmp[2] = src[2] * (1.0 / MASK); - - l = l - LUM (tmp); - tmp[0] += l; - tmp[1] += l; - tmp[2] += l; - - /* clip_color */ - l = LUM (tmp); - min = CH_MIN (tmp); - max = CH_MAX (tmp); - - if (min < 0) - { - tmp[0] = l + (tmp[0] - l) * l / (l - min); - tmp[1] = l + (tmp[1] - l) * l / (l - min); - tmp[2] = l + (tmp[2] - l) * l / (l - min); - } - if (max > a) - { - tmp[0] = l + (tmp[0] - l) * (a - l) / (max - l); - tmp[1] = l + (tmp[1] - l) * (a - l) / (max - l); - tmp[2] = l + (tmp[2] - l) * (a - l) / (max - l); - } - - dest[0] = tmp[0] * MASK + 0.5; - dest[1] = tmp[1] * MASK + 0.5; - dest[2] = tmp[2] * MASK + 0.5; -} - -static void -set_sat (comp4_t dest[3], comp4_t src[3], comp4_t sat) -{ - int id[3]; - comp4_t min, max; - - if (src[0] > src[1]) - { - if (src[0] > src[2]) - { - id[0] = 0; - if (src[1] > src[2]) - { - id[1] = 1; - id[2] = 2; - } - else - { - id[1] = 2; - id[2] = 1; - } - } - else - { - id[0] = 2; - id[1] = 0; - id[2] = 1; - } - } - else - { - if (src[0] > src[2]) - { - id[0] = 1; - id[1] = 0; - id[2] = 2; - } - else - { - id[2] = 0; - if (src[1] > src[2]) - { - id[0] = 1; - id[1] = 2; - } - else - { - id[0] = 2; - id[1] = 1; - } - } - } - - max = dest[id[0]]; - min = dest[id[2]]; - if (max > min) - { - dest[id[1]] = (dest[id[1]] - min) * sat / (max - min); - dest[id[0]] = sat; - dest[id[2]] = 0; - } - else - { - dest[0] = dest[1] = dest[2] = 0; - } -} - -/* - * Hue: - * B(Cb, Cs) = set_lum (set_sat (Cs, SAT (Cb)), LUM (Cb)) - */ -static inline void -blend_hsl_hue (comp4_t c[3], - comp4_t dc[3], - comp4_t da, - comp4_t sc[3], - comp4_t sa) -{ - c[0] = sc[0] * da; - c[1] = sc[1] * da; - c[2] = sc[2] * da; - set_sat (c, c, SAT (dc) * sa); - set_lum (c, c, sa * da, LUM (dc) * sa); -} - -PDF_NON_SEPARABLE_BLEND_MODE (hsl_hue) - -/* - * Saturation: - * B(Cb, Cs) = set_lum (set_sat (Cb, SAT (Cs)), LUM (Cb)) - */ -static inline void -blend_hsl_saturation (comp4_t c[3], - comp4_t dc[3], - comp4_t da, - comp4_t sc[3], - comp4_t sa) -{ - c[0] = dc[0] * sa; - c[1] = dc[1] * sa; - c[2] = dc[2] * sa; - set_sat (c, c, SAT (sc) * da); - set_lum (c, c, sa * da, LUM (dc) * sa); -} - -PDF_NON_SEPARABLE_BLEND_MODE (hsl_saturation) - -/* - * Color: - * B(Cb, Cs) = set_lum (Cs, LUM (Cb)) - */ -static inline void -blend_hsl_color (comp4_t c[3], - comp4_t dc[3], - comp4_t da, - comp4_t sc[3], - comp4_t sa) -{ - c[0] = sc[0] * da; - c[1] = sc[1] * da; - c[2] = sc[2] * da; - set_lum (c, c, sa * da, LUM (dc) * sa); -} - -PDF_NON_SEPARABLE_BLEND_MODE (hsl_color) - -/* - * Luminosity: - * B(Cb, Cs) = set_lum (Cb, LUM (Cs)) - */ -static inline void -blend_hsl_luminosity (comp4_t c[3], - comp4_t dc[3], - comp4_t da, - comp4_t sc[3], - comp4_t sa) -{ - c[0] = dc[0] * sa; - c[1] = dc[1] * sa; - c[2] = dc[2] * sa; - set_lum (c, c, sa * da, LUM (sc) * da); -} - -PDF_NON_SEPARABLE_BLEND_MODE (hsl_luminosity) - -#undef SAT -#undef LUM -#undef CH_MAX -#undef CH_MIN -#undef PDF_NON_SEPARABLE_BLEND_MODE - -/* Overlay - * - * All of the disjoint composing functions - * - * The four entries in the first column indicate what source contributions - * come from each of the four areas of the picture -- areas covered by neither - * A nor B, areas covered only by A, areas covered only by B and finally - * areas covered by both A and B. - * - * Disjoint Conjoint - * Fa Fb Fa Fb - * (0,0,0,0) 0 0 0 0 - * (0,A,0,A) 1 0 1 0 - * (0,0,B,B) 0 1 0 1 - * (0,A,B,A) 1 min((1-a)/b,1) 1 max(1-a/b,0) - * (0,A,B,B) min((1-b)/a,1) 1 max(1-b/a,0) 1 - * (0,0,0,A) max(1-(1-b)/a,0) 0 min(1,b/a) 0 - * (0,0,0,B) 0 max(1-(1-a)/b,0) 0 min(a/b,1) - * (0,A,0,0) min(1,(1-b)/a) 0 max(1-b/a,0) 0 - * (0,0,B,0) 0 min(1,(1-a)/b) 0 max(1-a/b,0) - * (0,0,B,A) max(1-(1-b)/a,0) min(1,(1-a)/b) min(1,b/a) max(1-a/b,0) - * (0,A,0,B) min(1,(1-b)/a) max(1-(1-a)/b,0) max(1-b/a,0) min(1,a/b) - * (0,A,B,0) min(1,(1-b)/a) min(1,(1-a)/b) max(1-b/a,0) max(1-a/b,0) - */ - -#define COMBINE_A_OUT 1 -#define COMBINE_A_IN 2 -#define COMBINE_B_OUT 4 -#define COMBINE_B_IN 8 - -#define COMBINE_CLEAR 0 -#define COMBINE_A (COMBINE_A_OUT | COMBINE_A_IN) -#define COMBINE_B (COMBINE_B_OUT | COMBINE_B_IN) -#define COMBINE_A_OVER (COMBINE_A_OUT | COMBINE_B_OUT | COMBINE_A_IN) -#define COMBINE_B_OVER (COMBINE_A_OUT | COMBINE_B_OUT | COMBINE_B_IN) -#define COMBINE_A_ATOP (COMBINE_B_OUT | COMBINE_A_IN) -#define COMBINE_B_ATOP (COMBINE_A_OUT | COMBINE_B_IN) -#define COMBINE_XOR (COMBINE_A_OUT | COMBINE_B_OUT) - -/* portion covered by a but not b */ -static comp1_t -combine_disjoint_out_part (comp1_t a, comp1_t b) -{ - /* min (1, (1-b) / a) */ - - b = ~b; /* 1 - b */ - if (b >= a) /* 1 - b >= a -> (1-b)/a >= 1 */ - return MASK; /* 1 */ - return DIV_UNc (b, a); /* (1-b) / a */ -} - -/* portion covered by both a and b */ -static comp1_t -combine_disjoint_in_part (comp1_t a, comp1_t b) -{ - /* max (1-(1-b)/a,0) */ - /* = - min ((1-b)/a - 1, 0) */ - /* = 1 - min (1, (1-b)/a) */ - - b = ~b; /* 1 - b */ - if (b >= a) /* 1 - b >= a -> (1-b)/a >= 1 */ - return 0; /* 1 - 1 */ - return ~DIV_UNc(b, a); /* 1 - (1-b) / a */ -} - -/* portion covered by a but not b */ -static comp1_t -combine_conjoint_out_part (comp1_t a, comp1_t b) -{ - /* max (1-b/a,0) */ - /* = 1-min(b/a,1) */ - - /* min (1, (1-b) / a) */ - - if (b >= a) /* b >= a -> b/a >= 1 */ - return 0x00; /* 0 */ - return ~DIV_UNc(b, a); /* 1 - b/a */ -} - -/* portion covered by both a and b */ -static comp1_t -combine_conjoint_in_part (comp1_t a, comp1_t b) -{ - /* min (1,b/a) */ - - if (b >= a) /* b >= a -> b/a >= 1 */ - return MASK; /* 1 */ - return DIV_UNc (b, a); /* b/a */ -} - -#define GET_COMP(v, i) ((comp2_t) (comp1_t) ((v) >> i)) - -#define ADD(x, y, i, t) \ - ((t) = GET_COMP (x, i) + GET_COMP (y, i), \ - (comp4_t) ((comp1_t) ((t) | (0 - ((t) >> G_SHIFT)))) << (i)) - -#define GENERIC(x, y, i, ax, ay, t, u, v) \ - ((t) = (MUL_UNc (GET_COMP (y, i), ay, (u)) + \ - MUL_UNc (GET_COMP (x, i), ax, (v))), \ - (comp4_t) ((comp1_t) ((t) | \ - (0 - ((t) >> G_SHIFT)))) << (i)) - -static void -combine_disjoint_general_u (comp4_t * dest, - const comp4_t *src, - const comp4_t *mask, - int width, - comp1_t combine) -{ - int i; - - for (i = 0; i < width; ++i) - { - comp4_t s = combine_mask (src, mask, i); - comp4_t d = *(dest + i); - comp4_t m, n, o, p; - comp2_t Fa, Fb, t, u, v; - comp1_t sa = s >> A_SHIFT; - comp1_t da = d >> A_SHIFT; - - switch (combine & COMBINE_A) - { - default: - Fa = 0; - break; - - case COMBINE_A_OUT: - Fa = combine_disjoint_out_part (sa, da); - break; - - case COMBINE_A_IN: - Fa = combine_disjoint_in_part (sa, da); - break; - - case COMBINE_A: - Fa = MASK; - break; - } - - switch (combine & COMBINE_B) - { - default: - Fb = 0; - break; - - case COMBINE_B_OUT: - Fb = combine_disjoint_out_part (da, sa); - break; - - case COMBINE_B_IN: - Fb = combine_disjoint_in_part (da, sa); - break; - - case COMBINE_B: - Fb = MASK; - break; - } - m = GENERIC (s, d, 0, Fa, Fb, t, u, v); - n = GENERIC (s, d, G_SHIFT, Fa, Fb, t, u, v); - o = GENERIC (s, d, R_SHIFT, Fa, Fb, t, u, v); - p = GENERIC (s, d, A_SHIFT, Fa, Fb, t, u, v); - s = m | n | o | p; - *(dest + i) = s; - } -} - -static void -combine_disjoint_over_u (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - int i; - - for (i = 0; i < width; ++i) - { - comp4_t s = combine_mask (src, mask, i); - comp2_t a = s >> A_SHIFT; - - if (s != 0x00) - { - comp4_t d = *(dest + i); - a = combine_disjoint_out_part (d >> A_SHIFT, a); - UNcx4_MUL_UNc_ADD_UNcx4 (d, a, s); - - *(dest + i) = d; - } - } -} - -static void -combine_disjoint_in_u (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - combine_disjoint_general_u (dest, src, mask, width, COMBINE_A_IN); -} - -static void -combine_disjoint_in_reverse_u (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - combine_disjoint_general_u (dest, src, mask, width, COMBINE_B_IN); -} - -static void -combine_disjoint_out_u (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - combine_disjoint_general_u (dest, src, mask, width, COMBINE_A_OUT); -} - -static void -combine_disjoint_out_reverse_u (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - combine_disjoint_general_u (dest, src, mask, width, COMBINE_B_OUT); -} - -static void -combine_disjoint_atop_u (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - combine_disjoint_general_u (dest, src, mask, width, COMBINE_A_ATOP); -} - -static void -combine_disjoint_atop_reverse_u (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - combine_disjoint_general_u (dest, src, mask, width, COMBINE_B_ATOP); -} - -static void -combine_disjoint_xor_u (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - combine_disjoint_general_u (dest, src, mask, width, COMBINE_XOR); -} - -static void -combine_conjoint_general_u (comp4_t * dest, - const comp4_t *src, - const comp4_t *mask, - int width, - comp1_t combine) -{ - int i; - - for (i = 0; i < width; ++i) - { - comp4_t s = combine_mask (src, mask, i); - comp4_t d = *(dest + i); - comp4_t m, n, o, p; - comp2_t Fa, Fb, t, u, v; - comp1_t sa = s >> A_SHIFT; - comp1_t da = d >> A_SHIFT; - - switch (combine & COMBINE_A) - { - default: - Fa = 0; - break; - - case COMBINE_A_OUT: - Fa = combine_conjoint_out_part (sa, da); - break; - - case COMBINE_A_IN: - Fa = combine_conjoint_in_part (sa, da); - break; - - case COMBINE_A: - Fa = MASK; - break; - } - - switch (combine & COMBINE_B) - { - default: - Fb = 0; - break; - - case COMBINE_B_OUT: - Fb = combine_conjoint_out_part (da, sa); - break; - - case COMBINE_B_IN: - Fb = combine_conjoint_in_part (da, sa); - break; - - case COMBINE_B: - Fb = MASK; - break; - } - - m = GENERIC (s, d, 0, Fa, Fb, t, u, v); - n = GENERIC (s, d, G_SHIFT, Fa, Fb, t, u, v); - o = GENERIC (s, d, R_SHIFT, Fa, Fb, t, u, v); - p = GENERIC (s, d, A_SHIFT, Fa, Fb, t, u, v); - - s = m | n | o | p; - - *(dest + i) = s; - } -} - -static void -combine_conjoint_over_u (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - combine_conjoint_general_u (dest, src, mask, width, COMBINE_A_OVER); -} - -static void -combine_conjoint_over_reverse_u (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - combine_conjoint_general_u (dest, src, mask, width, COMBINE_B_OVER); -} - -static void -combine_conjoint_in_u (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - combine_conjoint_general_u (dest, src, mask, width, COMBINE_A_IN); -} - -static void -combine_conjoint_in_reverse_u (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - combine_conjoint_general_u (dest, src, mask, width, COMBINE_B_IN); -} - -static void -combine_conjoint_out_u (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - combine_conjoint_general_u (dest, src, mask, width, COMBINE_A_OUT); -} - -static void -combine_conjoint_out_reverse_u (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - combine_conjoint_general_u (dest, src, mask, width, COMBINE_B_OUT); -} - -static void -combine_conjoint_atop_u (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - combine_conjoint_general_u (dest, src, mask, width, COMBINE_A_ATOP); -} - -static void -combine_conjoint_atop_reverse_u (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - combine_conjoint_general_u (dest, src, mask, width, COMBINE_B_ATOP); -} - -static void -combine_conjoint_xor_u (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - combine_conjoint_general_u (dest, src, mask, width, COMBINE_XOR); -} - -/************************************************************************/ -/*********************** Per Channel functions **************************/ -/************************************************************************/ - -static void -combine_clear_ca (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - memset (dest, 0, width * sizeof(comp4_t)); -} - -static void -combine_src_ca (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - int i; - - for (i = 0; i < width; ++i) - { - comp4_t s = *(src + i); - comp4_t m = *(mask + i); - - combine_mask_value_ca (&s, &m); - - *(dest + i) = s; - } -} - -static void -combine_over_ca (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - int i; - - for (i = 0; i < width; ++i) - { - comp4_t s = *(src + i); - comp4_t m = *(mask + i); - comp4_t a; - - combine_mask_ca (&s, &m); - - a = ~m; - if (a) - { - comp4_t d = *(dest + i); - UNcx4_MUL_UNcx4_ADD_UNcx4 (d, a, s); - s = d; - } - - *(dest + i) = s; - } -} - -static void -combine_over_reverse_ca (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - int i; - - for (i = 0; i < width; ++i) - { - comp4_t d = *(dest + i); - comp4_t a = ~d >> A_SHIFT; - - if (a) - { - comp4_t s = *(src + i); - comp4_t m = *(mask + i); - - UNcx4_MUL_UNcx4 (s, m); - UNcx4_MUL_UNc_ADD_UNcx4 (s, a, d); - - *(dest + i) = s; - } - } -} - -static void -combine_in_ca (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - int i; - - for (i = 0; i < width; ++i) - { - comp4_t d = *(dest + i); - comp2_t a = d >> A_SHIFT; - comp4_t s = 0; - - if (a) - { - comp4_t m = *(mask + i); - - s = *(src + i); - combine_mask_value_ca (&s, &m); - - if (a != MASK) - UNcx4_MUL_UNc (s, a); - } - - *(dest + i) = s; - } -} - -static void -combine_in_reverse_ca (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - int i; - - for (i = 0; i < width; ++i) - { - comp4_t s = *(src + i); - comp4_t m = *(mask + i); - comp4_t a; - - combine_mask_alpha_ca (&s, &m); - - a = m; - if (a != ~0) - { - comp4_t d = 0; - - if (a) - { - d = *(dest + i); - UNcx4_MUL_UNcx4 (d, a); - } - - *(dest + i) = d; - } - } -} - -static void -combine_out_ca (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - int i; - - for (i = 0; i < width; ++i) - { - comp4_t d = *(dest + i); - comp2_t a = ~d >> A_SHIFT; - comp4_t s = 0; - - if (a) - { - comp4_t m = *(mask + i); - - s = *(src + i); - combine_mask_value_ca (&s, &m); - - if (a != MASK) - UNcx4_MUL_UNc (s, a); - } - - *(dest + i) = s; - } -} - -static void -combine_out_reverse_ca (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - int i; - - for (i = 0; i < width; ++i) - { - comp4_t s = *(src + i); - comp4_t m = *(mask + i); - comp4_t a; - - combine_mask_alpha_ca (&s, &m); - - a = ~m; - if (a != ~0) - { - comp4_t d = 0; - - if (a) - { - d = *(dest + i); - UNcx4_MUL_UNcx4 (d, a); - } - - *(dest + i) = d; - } - } -} - -static void -combine_atop_ca (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - int i; - - for (i = 0; i < width; ++i) - { - comp4_t d = *(dest + i); - comp4_t s = *(src + i); - comp4_t m = *(mask + i); - comp4_t ad; - comp2_t as = d >> A_SHIFT; - - combine_mask_ca (&s, &m); - - ad = ~m; - - UNcx4_MUL_UNcx4_ADD_UNcx4_MUL_UNc (d, ad, s, as); - - *(dest + i) = d; - } -} - -static void -combine_atop_reverse_ca (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - int i; - - for (i = 0; i < width; ++i) - { - comp4_t d = *(dest + i); - comp4_t s = *(src + i); - comp4_t m = *(mask + i); - comp4_t ad; - comp2_t as = ~d >> A_SHIFT; - - combine_mask_ca (&s, &m); - - ad = m; - - UNcx4_MUL_UNcx4_ADD_UNcx4_MUL_UNc (d, ad, s, as); - - *(dest + i) = d; - } -} - -static void -combine_xor_ca (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - int i; - - for (i = 0; i < width; ++i) - { - comp4_t d = *(dest + i); - comp4_t s = *(src + i); - comp4_t m = *(mask + i); - comp4_t ad; - comp2_t as = ~d >> A_SHIFT; - - combine_mask_ca (&s, &m); - - ad = ~m; - - UNcx4_MUL_UNcx4_ADD_UNcx4_MUL_UNc (d, ad, s, as); - - *(dest + i) = d; - } -} - -static void -combine_add_ca (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - int i; - - for (i = 0; i < width; ++i) - { - comp4_t s = *(src + i); - comp4_t m = *(mask + i); - comp4_t d = *(dest + i); - - combine_mask_value_ca (&s, &m); - - UNcx4_ADD_UNcx4 (d, s); - - *(dest + i) = d; - } -} - -static void -combine_saturate_ca (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - int i; - - for (i = 0; i < width; ++i) - { - comp4_t s, d; - comp2_t sa, sr, sg, sb, da; - comp2_t t, u, v; - comp4_t m, n, o, p; - - d = *(dest + i); - s = *(src + i); - m = *(mask + i); - - combine_mask_ca (&s, &m); - - sa = (m >> A_SHIFT); - sr = (m >> R_SHIFT) & MASK; - sg = (m >> G_SHIFT) & MASK; - sb = m & MASK; - da = ~d >> A_SHIFT; - - if (sb <= da) - m = ADD (s, d, 0, t); - else - m = GENERIC (s, d, 0, (da << G_SHIFT) / sb, MASK, t, u, v); - - if (sg <= da) - n = ADD (s, d, G_SHIFT, t); - else - n = GENERIC (s, d, G_SHIFT, (da << G_SHIFT) / sg, MASK, t, u, v); - - if (sr <= da) - o = ADD (s, d, R_SHIFT, t); - else - o = GENERIC (s, d, R_SHIFT, (da << G_SHIFT) / sr, MASK, t, u, v); - - if (sa <= da) - p = ADD (s, d, A_SHIFT, t); - else - p = GENERIC (s, d, A_SHIFT, (da << G_SHIFT) / sa, MASK, t, u, v); - - *(dest + i) = m | n | o | p; - } -} - -static void -combine_disjoint_general_ca (comp4_t * dest, - const comp4_t *src, - const comp4_t *mask, - int width, - comp1_t combine) -{ - int i; - - for (i = 0; i < width; ++i) - { - comp4_t s, d; - comp4_t m, n, o, p; - comp4_t Fa, Fb; - comp2_t t, u, v; - comp4_t sa; - comp1_t da; - - s = *(src + i); - m = *(mask + i); - d = *(dest + i); - da = d >> A_SHIFT; - - combine_mask_ca (&s, &m); - - sa = m; - - switch (combine & COMBINE_A) - { - default: - Fa = 0; - break; - - case COMBINE_A_OUT: - m = (comp4_t)combine_disjoint_out_part ((comp1_t) (sa >> 0), da); - n = (comp4_t)combine_disjoint_out_part ((comp1_t) (sa >> G_SHIFT), da) << G_SHIFT; - o = (comp4_t)combine_disjoint_out_part ((comp1_t) (sa >> R_SHIFT), da) << R_SHIFT; - p = (comp4_t)combine_disjoint_out_part ((comp1_t) (sa >> A_SHIFT), da) << A_SHIFT; - Fa = m | n | o | p; - break; - - case COMBINE_A_IN: - m = (comp4_t)combine_disjoint_in_part ((comp1_t) (sa >> 0), da); - n = (comp4_t)combine_disjoint_in_part ((comp1_t) (sa >> G_SHIFT), da) << G_SHIFT; - o = (comp4_t)combine_disjoint_in_part ((comp1_t) (sa >> R_SHIFT), da) << R_SHIFT; - p = (comp4_t)combine_disjoint_in_part ((comp1_t) (sa >> A_SHIFT), da) << A_SHIFT; - Fa = m | n | o | p; - break; - - case COMBINE_A: - Fa = ~0; - break; - } - - switch (combine & COMBINE_B) - { - default: - Fb = 0; - break; - - case COMBINE_B_OUT: - m = (comp4_t)combine_disjoint_out_part (da, (comp1_t) (sa >> 0)); - n = (comp4_t)combine_disjoint_out_part (da, (comp1_t) (sa >> G_SHIFT)) << G_SHIFT; - o = (comp4_t)combine_disjoint_out_part (da, (comp1_t) (sa >> R_SHIFT)) << R_SHIFT; - p = (comp4_t)combine_disjoint_out_part (da, (comp1_t) (sa >> A_SHIFT)) << A_SHIFT; - Fb = m | n | o | p; - break; - - case COMBINE_B_IN: - m = (comp4_t)combine_disjoint_in_part (da, (comp1_t) (sa >> 0)); - n = (comp4_t)combine_disjoint_in_part (da, (comp1_t) (sa >> G_SHIFT)) << G_SHIFT; - o = (comp4_t)combine_disjoint_in_part (da, (comp1_t) (sa >> R_SHIFT)) << R_SHIFT; - p = (comp4_t)combine_disjoint_in_part (da, (comp1_t) (sa >> A_SHIFT)) << A_SHIFT; - Fb = m | n | o | p; - break; - - case COMBINE_B: - Fb = ~0; - break; - } - m = GENERIC (s, d, 0, GET_COMP (Fa, 0), GET_COMP (Fb, 0), t, u, v); - n = GENERIC (s, d, G_SHIFT, GET_COMP (Fa, G_SHIFT), GET_COMP (Fb, G_SHIFT), t, u, v); - o = GENERIC (s, d, R_SHIFT, GET_COMP (Fa, R_SHIFT), GET_COMP (Fb, R_SHIFT), t, u, v); - p = GENERIC (s, d, A_SHIFT, GET_COMP (Fa, A_SHIFT), GET_COMP (Fb, A_SHIFT), t, u, v); - - s = m | n | o | p; - - *(dest + i) = s; - } -} - -static void -combine_disjoint_over_ca (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - combine_disjoint_general_ca (dest, src, mask, width, COMBINE_A_OVER); -} - -static void -combine_disjoint_in_ca (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - combine_disjoint_general_ca (dest, src, mask, width, COMBINE_A_IN); -} - -static void -combine_disjoint_in_reverse_ca (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - combine_disjoint_general_ca (dest, src, mask, width, COMBINE_B_IN); -} - -static void -combine_disjoint_out_ca (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - combine_disjoint_general_ca (dest, src, mask, width, COMBINE_A_OUT); -} - -static void -combine_disjoint_out_reverse_ca (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - combine_disjoint_general_ca (dest, src, mask, width, COMBINE_B_OUT); -} - -static void -combine_disjoint_atop_ca (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - combine_disjoint_general_ca (dest, src, mask, width, COMBINE_A_ATOP); -} - -static void -combine_disjoint_atop_reverse_ca (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - combine_disjoint_general_ca (dest, src, mask, width, COMBINE_B_ATOP); -} - -static void -combine_disjoint_xor_ca (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - combine_disjoint_general_ca (dest, src, mask, width, COMBINE_XOR); -} - -static void -combine_conjoint_general_ca (comp4_t * dest, - const comp4_t *src, - const comp4_t *mask, - int width, - comp1_t combine) -{ - int i; - - for (i = 0; i < width; ++i) - { - comp4_t s, d; - comp4_t m, n, o, p; - comp4_t Fa, Fb; - comp2_t t, u, v; - comp4_t sa; - comp1_t da; - - s = *(src + i); - m = *(mask + i); - d = *(dest + i); - da = d >> A_SHIFT; - - combine_mask_ca (&s, &m); - - sa = m; - - switch (combine & COMBINE_A) - { - default: - Fa = 0; - break; - - case COMBINE_A_OUT: - m = (comp4_t)combine_conjoint_out_part ((comp1_t) (sa >> 0), da); - n = (comp4_t)combine_conjoint_out_part ((comp1_t) (sa >> G_SHIFT), da) << G_SHIFT; - o = (comp4_t)combine_conjoint_out_part ((comp1_t) (sa >> R_SHIFT), da) << R_SHIFT; - p = (comp4_t)combine_conjoint_out_part ((comp1_t) (sa >> A_SHIFT), da) << A_SHIFT; - Fa = m | n | o | p; - break; - - case COMBINE_A_IN: - m = (comp4_t)combine_conjoint_in_part ((comp1_t) (sa >> 0), da); - n = (comp4_t)combine_conjoint_in_part ((comp1_t) (sa >> G_SHIFT), da) << G_SHIFT; - o = (comp4_t)combine_conjoint_in_part ((comp1_t) (sa >> R_SHIFT), da) << R_SHIFT; - p = (comp4_t)combine_conjoint_in_part ((comp1_t) (sa >> A_SHIFT), da) << A_SHIFT; - Fa = m | n | o | p; - break; - - case COMBINE_A: - Fa = ~0; - break; - } - - switch (combine & COMBINE_B) - { - default: - Fb = 0; - break; - - case COMBINE_B_OUT: - m = (comp4_t)combine_conjoint_out_part (da, (comp1_t) (sa >> 0)); - n = (comp4_t)combine_conjoint_out_part (da, (comp1_t) (sa >> G_SHIFT)) << G_SHIFT; - o = (comp4_t)combine_conjoint_out_part (da, (comp1_t) (sa >> R_SHIFT)) << R_SHIFT; - p = (comp4_t)combine_conjoint_out_part (da, (comp1_t) (sa >> A_SHIFT)) << A_SHIFT; - Fb = m | n | o | p; - break; - - case COMBINE_B_IN: - m = (comp4_t)combine_conjoint_in_part (da, (comp1_t) (sa >> 0)); - n = (comp4_t)combine_conjoint_in_part (da, (comp1_t) (sa >> G_SHIFT)) << G_SHIFT; - o = (comp4_t)combine_conjoint_in_part (da, (comp1_t) (sa >> R_SHIFT)) << R_SHIFT; - p = (comp4_t)combine_conjoint_in_part (da, (comp1_t) (sa >> A_SHIFT)) << A_SHIFT; - Fb = m | n | o | p; - break; - - case COMBINE_B: - Fb = ~0; - break; - } - m = GENERIC (s, d, 0, GET_COMP (Fa, 0), GET_COMP (Fb, 0), t, u, v); - n = GENERIC (s, d, G_SHIFT, GET_COMP (Fa, G_SHIFT), GET_COMP (Fb, G_SHIFT), t, u, v); - o = GENERIC (s, d, R_SHIFT, GET_COMP (Fa, R_SHIFT), GET_COMP (Fb, R_SHIFT), t, u, v); - p = GENERIC (s, d, A_SHIFT, GET_COMP (Fa, A_SHIFT), GET_COMP (Fb, A_SHIFT), t, u, v); - - s = m | n | o | p; - - *(dest + i) = s; - } -} - -static void -combine_conjoint_over_ca (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - combine_conjoint_general_ca (dest, src, mask, width, COMBINE_A_OVER); -} - -static void -combine_conjoint_over_reverse_ca (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - combine_conjoint_general_ca (dest, src, mask, width, COMBINE_B_OVER); -} - -static void -combine_conjoint_in_ca (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - combine_conjoint_general_ca (dest, src, mask, width, COMBINE_A_IN); -} - -static void -combine_conjoint_in_reverse_ca (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - combine_conjoint_general_ca (dest, src, mask, width, COMBINE_B_IN); -} - -static void -combine_conjoint_out_ca (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - combine_conjoint_general_ca (dest, src, mask, width, COMBINE_A_OUT); -} - -static void -combine_conjoint_out_reverse_ca (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - combine_conjoint_general_ca (dest, src, mask, width, COMBINE_B_OUT); -} - -static void -combine_conjoint_atop_ca (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - combine_conjoint_general_ca (dest, src, mask, width, COMBINE_A_ATOP); -} - -static void -combine_conjoint_atop_reverse_ca (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - combine_conjoint_general_ca (dest, src, mask, width, COMBINE_B_ATOP); -} - -static void -combine_conjoint_xor_ca (pixman_implementation_t *imp, - pixman_op_t op, - comp4_t * dest, - const comp4_t * src, - const comp4_t * mask, - int width) -{ - combine_conjoint_general_ca (dest, src, mask, width, COMBINE_XOR); -} - -void -_pixman_setup_combiner_functions_width (pixman_implementation_t *imp) -{ - /* Unified alpha */ - imp->combine_width[PIXMAN_OP_CLEAR] = combine_clear; - imp->combine_width[PIXMAN_OP_SRC] = combine_src_u; - imp->combine_width[PIXMAN_OP_DST] = combine_dst; - imp->combine_width[PIXMAN_OP_OVER] = combine_over_u; - imp->combine_width[PIXMAN_OP_OVER_REVERSE] = combine_over_reverse_u; - imp->combine_width[PIXMAN_OP_IN] = combine_in_u; - imp->combine_width[PIXMAN_OP_IN_REVERSE] = combine_in_reverse_u; - imp->combine_width[PIXMAN_OP_OUT] = combine_out_u; - imp->combine_width[PIXMAN_OP_OUT_REVERSE] = combine_out_reverse_u; - imp->combine_width[PIXMAN_OP_ATOP] = combine_atop_u; - imp->combine_width[PIXMAN_OP_ATOP_REVERSE] = combine_atop_reverse_u; - imp->combine_width[PIXMAN_OP_XOR] = combine_xor_u; - imp->combine_width[PIXMAN_OP_ADD] = combine_add_u; - imp->combine_width[PIXMAN_OP_SATURATE] = combine_saturate_u; - - /* Disjoint, unified */ - imp->combine_width[PIXMAN_OP_DISJOINT_CLEAR] = combine_clear; - imp->combine_width[PIXMAN_OP_DISJOINT_SRC] = combine_src_u; - imp->combine_width[PIXMAN_OP_DISJOINT_DST] = combine_dst; - imp->combine_width[PIXMAN_OP_DISJOINT_OVER] = combine_disjoint_over_u; - imp->combine_width[PIXMAN_OP_DISJOINT_OVER_REVERSE] = combine_saturate_u; - imp->combine_width[PIXMAN_OP_DISJOINT_IN] = combine_disjoint_in_u; - imp->combine_width[PIXMAN_OP_DISJOINT_IN_REVERSE] = combine_disjoint_in_reverse_u; - imp->combine_width[PIXMAN_OP_DISJOINT_OUT] = combine_disjoint_out_u; - imp->combine_width[PIXMAN_OP_DISJOINT_OUT_REVERSE] = combine_disjoint_out_reverse_u; - imp->combine_width[PIXMAN_OP_DISJOINT_ATOP] = combine_disjoint_atop_u; - imp->combine_width[PIXMAN_OP_DISJOINT_ATOP_REVERSE] = combine_disjoint_atop_reverse_u; - imp->combine_width[PIXMAN_OP_DISJOINT_XOR] = combine_disjoint_xor_u; - - /* Conjoint, unified */ - imp->combine_width[PIXMAN_OP_CONJOINT_CLEAR] = combine_clear; - imp->combine_width[PIXMAN_OP_CONJOINT_SRC] = combine_src_u; - imp->combine_width[PIXMAN_OP_CONJOINT_DST] = combine_dst; - imp->combine_width[PIXMAN_OP_CONJOINT_OVER] = combine_conjoint_over_u; - imp->combine_width[PIXMAN_OP_CONJOINT_OVER_REVERSE] = combine_conjoint_over_reverse_u; - imp->combine_width[PIXMAN_OP_CONJOINT_IN] = combine_conjoint_in_u; - imp->combine_width[PIXMAN_OP_CONJOINT_IN_REVERSE] = combine_conjoint_in_reverse_u; - imp->combine_width[PIXMAN_OP_CONJOINT_OUT] = combine_conjoint_out_u; - imp->combine_width[PIXMAN_OP_CONJOINT_OUT_REVERSE] = combine_conjoint_out_reverse_u; - imp->combine_width[PIXMAN_OP_CONJOINT_ATOP] = combine_conjoint_atop_u; - imp->combine_width[PIXMAN_OP_CONJOINT_ATOP_REVERSE] = combine_conjoint_atop_reverse_u; - imp->combine_width[PIXMAN_OP_CONJOINT_XOR] = combine_conjoint_xor_u; - - imp->combine_width[PIXMAN_OP_MULTIPLY] = combine_multiply_u; - imp->combine_width[PIXMAN_OP_SCREEN] = combine_screen_u; - imp->combine_width[PIXMAN_OP_OVERLAY] = combine_overlay_u; - imp->combine_width[PIXMAN_OP_DARKEN] = combine_darken_u; - imp->combine_width[PIXMAN_OP_LIGHTEN] = combine_lighten_u; - imp->combine_width[PIXMAN_OP_COLOR_DODGE] = combine_color_dodge_u; - imp->combine_width[PIXMAN_OP_COLOR_BURN] = combine_color_burn_u; - imp->combine_width[PIXMAN_OP_HARD_LIGHT] = combine_hard_light_u; - imp->combine_width[PIXMAN_OP_SOFT_LIGHT] = combine_soft_light_u; - imp->combine_width[PIXMAN_OP_DIFFERENCE] = combine_difference_u; - imp->combine_width[PIXMAN_OP_EXCLUSION] = combine_exclusion_u; - imp->combine_width[PIXMAN_OP_HSL_HUE] = combine_hsl_hue_u; - imp->combine_width[PIXMAN_OP_HSL_SATURATION] = combine_hsl_saturation_u; - imp->combine_width[PIXMAN_OP_HSL_COLOR] = combine_hsl_color_u; - imp->combine_width[PIXMAN_OP_HSL_LUMINOSITY] = combine_hsl_luminosity_u; - - /* Component alpha combiners */ - imp->combine_width_ca[PIXMAN_OP_CLEAR] = combine_clear_ca; - imp->combine_width_ca[PIXMAN_OP_SRC] = combine_src_ca; - /* dest */ - imp->combine_width_ca[PIXMAN_OP_OVER] = combine_over_ca; - imp->combine_width_ca[PIXMAN_OP_OVER_REVERSE] = combine_over_reverse_ca; - imp->combine_width_ca[PIXMAN_OP_IN] = combine_in_ca; - imp->combine_width_ca[PIXMAN_OP_IN_REVERSE] = combine_in_reverse_ca; - imp->combine_width_ca[PIXMAN_OP_OUT] = combine_out_ca; - imp->combine_width_ca[PIXMAN_OP_OUT_REVERSE] = combine_out_reverse_ca; - imp->combine_width_ca[PIXMAN_OP_ATOP] = combine_atop_ca; - imp->combine_width_ca[PIXMAN_OP_ATOP_REVERSE] = combine_atop_reverse_ca; - imp->combine_width_ca[PIXMAN_OP_XOR] = combine_xor_ca; - imp->combine_width_ca[PIXMAN_OP_ADD] = combine_add_ca; - imp->combine_width_ca[PIXMAN_OP_SATURATE] = combine_saturate_ca; - - /* Disjoint CA */ - imp->combine_width_ca[PIXMAN_OP_DISJOINT_CLEAR] = combine_clear_ca; - imp->combine_width_ca[PIXMAN_OP_DISJOINT_SRC] = combine_src_ca; - imp->combine_width_ca[PIXMAN_OP_DISJOINT_DST] = combine_dst; - imp->combine_width_ca[PIXMAN_OP_DISJOINT_OVER] = combine_disjoint_over_ca; - imp->combine_width_ca[PIXMAN_OP_DISJOINT_OVER_REVERSE] = combine_saturate_ca; - imp->combine_width_ca[PIXMAN_OP_DISJOINT_IN] = combine_disjoint_in_ca; - imp->combine_width_ca[PIXMAN_OP_DISJOINT_IN_REVERSE] = combine_disjoint_in_reverse_ca; - imp->combine_width_ca[PIXMAN_OP_DISJOINT_OUT] = combine_disjoint_out_ca; - imp->combine_width_ca[PIXMAN_OP_DISJOINT_OUT_REVERSE] = combine_disjoint_out_reverse_ca; - imp->combine_width_ca[PIXMAN_OP_DISJOINT_ATOP] = combine_disjoint_atop_ca; - imp->combine_width_ca[PIXMAN_OP_DISJOINT_ATOP_REVERSE] = combine_disjoint_atop_reverse_ca; - imp->combine_width_ca[PIXMAN_OP_DISJOINT_XOR] = combine_disjoint_xor_ca; - - /* Conjoint CA */ - imp->combine_width_ca[PIXMAN_OP_CONJOINT_CLEAR] = combine_clear_ca; - imp->combine_width_ca[PIXMAN_OP_CONJOINT_SRC] = combine_src_ca; - imp->combine_width_ca[PIXMAN_OP_CONJOINT_DST] = combine_dst; - imp->combine_width_ca[PIXMAN_OP_CONJOINT_OVER] = combine_conjoint_over_ca; - imp->combine_width_ca[PIXMAN_OP_CONJOINT_OVER_REVERSE] = combine_conjoint_over_reverse_ca; - imp->combine_width_ca[PIXMAN_OP_CONJOINT_IN] = combine_conjoint_in_ca; - imp->combine_width_ca[PIXMAN_OP_CONJOINT_IN_REVERSE] = combine_conjoint_in_reverse_ca; - imp->combine_width_ca[PIXMAN_OP_CONJOINT_OUT] = combine_conjoint_out_ca; - imp->combine_width_ca[PIXMAN_OP_CONJOINT_OUT_REVERSE] = combine_conjoint_out_reverse_ca; - imp->combine_width_ca[PIXMAN_OP_CONJOINT_ATOP] = combine_conjoint_atop_ca; - imp->combine_width_ca[PIXMAN_OP_CONJOINT_ATOP_REVERSE] = combine_conjoint_atop_reverse_ca; - imp->combine_width_ca[PIXMAN_OP_CONJOINT_XOR] = combine_conjoint_xor_ca; - - imp->combine_width_ca[PIXMAN_OP_MULTIPLY] = combine_multiply_ca; - imp->combine_width_ca[PIXMAN_OP_SCREEN] = combine_screen_ca; - imp->combine_width_ca[PIXMAN_OP_OVERLAY] = combine_overlay_ca; - imp->combine_width_ca[PIXMAN_OP_DARKEN] = combine_darken_ca; - imp->combine_width_ca[PIXMAN_OP_LIGHTEN] = combine_lighten_ca; - imp->combine_width_ca[PIXMAN_OP_COLOR_DODGE] = combine_color_dodge_ca; - imp->combine_width_ca[PIXMAN_OP_COLOR_BURN] = combine_color_burn_ca; - imp->combine_width_ca[PIXMAN_OP_HARD_LIGHT] = combine_hard_light_ca; - imp->combine_width_ca[PIXMAN_OP_SOFT_LIGHT] = combine_soft_light_ca; - imp->combine_width_ca[PIXMAN_OP_DIFFERENCE] = combine_difference_ca; - imp->combine_width_ca[PIXMAN_OP_EXCLUSION] = combine_exclusion_ca; - - /* It is not clear that these make sense, so make them noops for now */ - imp->combine_width_ca[PIXMAN_OP_HSL_HUE] = combine_dst; - imp->combine_width_ca[PIXMAN_OP_HSL_SATURATION] = combine_dst; - imp->combine_width_ca[PIXMAN_OP_HSL_COLOR] = combine_dst; - imp->combine_width_ca[PIXMAN_OP_HSL_LUMINOSITY] = combine_dst; -} - +#ifdef HAVE_CONFIG_H +#include +#endif + +#include +#include + +#include "pixman-private.h" + +#include "pixman-combine.h" + +/*** per channel helper functions ***/ + +static void +combine_mask_ca (comp4_t *src, comp4_t *mask) +{ + comp4_t a = *mask; + + comp4_t x; + comp2_t xa; + + if (!a) + { + *(src) = 0; + return; + } + + x = *(src); + if (a == ~0) + { + x = x >> A_SHIFT; + x |= x << G_SHIFT; + x |= x << R_SHIFT; + *(mask) = x; + return; + } + + xa = x >> A_SHIFT; + UNcx4_MUL_UNcx4 (x, a); + *(src) = x; + + UNcx4_MUL_UNc (a, xa); + *(mask) = a; +} + +static void +combine_mask_value_ca (comp4_t *src, const comp4_t *mask) +{ + comp4_t a = *mask; + comp4_t x; + + if (!a) + { + *(src) = 0; + return; + } + + if (a == ~0) + return; + + x = *(src); + UNcx4_MUL_UNcx4 (x, a); + *(src) = x; +} + +static void +combine_mask_alpha_ca (const comp4_t *src, comp4_t *mask) +{ + comp4_t a = *(mask); + comp4_t x; + + if (!a) + return; + + x = *(src) >> A_SHIFT; + if (x == MASK) + return; + + if (a == ~0) + { + x |= x << G_SHIFT; + x |= x << R_SHIFT; + *(mask) = x; + return; + } + + UNcx4_MUL_UNc (a, x); + *(mask) = a; +} + +/* + * There are two ways of handling alpha -- either as a single unified value or + * a separate value for each component, hence each macro must have two + * versions. The unified alpha version has a 'U' at the end of the name, + * the component version has a 'C'. Similarly, functions which deal with + * this difference will have two versions using the same convention. + */ + +/* + * All of the composing functions + */ + +static force_inline comp4_t +combine_mask (const comp4_t *src, const comp4_t *mask, int i) +{ + comp4_t s, m; + + if (mask) + { + m = *(mask + i) >> A_SHIFT; + + if (!m) + return 0; + } + + s = *(src + i); + + if (mask) + UNcx4_MUL_UNc (s, m); + + return s; +} + +static void +combine_clear (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + memset (dest, 0, width * sizeof(comp4_t)); +} + +static void +combine_dst (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + return; +} + +static void +combine_src_u (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + int i; + + if (!mask) + memcpy (dest, src, width * sizeof (comp4_t)); + else + { + for (i = 0; i < width; ++i) + { + comp4_t s = combine_mask (src, mask, i); + + *(dest + i) = s; + } + } +} + +/* if the Src is opaque, call combine_src_u */ +static void +combine_over_u (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + int i; + + for (i = 0; i < width; ++i) + { + comp4_t s = combine_mask (src, mask, i); + comp4_t d = *(dest + i); + comp4_t ia = ALPHA_c (~s); + + UNcx4_MUL_UNc_ADD_UNcx4 (d, ia, s); + *(dest + i) = d; + } +} + +/* if the Dst is opaque, this is a noop */ +static void +combine_over_reverse_u (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + int i; + + for (i = 0; i < width; ++i) + { + comp4_t s = combine_mask (src, mask, i); + comp4_t d = *(dest + i); + comp4_t ia = ALPHA_c (~*(dest + i)); + UNcx4_MUL_UNc_ADD_UNcx4 (s, ia, d); + *(dest + i) = s; + } +} + +/* if the Dst is opaque, call combine_src_u */ +static void +combine_in_u (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + int i; + + for (i = 0; i < width; ++i) + { + comp4_t s = combine_mask (src, mask, i); + comp4_t a = ALPHA_c (*(dest + i)); + UNcx4_MUL_UNc (s, a); + *(dest + i) = s; + } +} + +/* if the Src is opaque, this is a noop */ +static void +combine_in_reverse_u (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + int i; + + for (i = 0; i < width; ++i) + { + comp4_t s = combine_mask (src, mask, i); + comp4_t d = *(dest + i); + comp4_t a = ALPHA_c (s); + UNcx4_MUL_UNc (d, a); + *(dest + i) = d; + } +} + +/* if the Dst is opaque, call combine_clear */ +static void +combine_out_u (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + int i; + + for (i = 0; i < width; ++i) + { + comp4_t s = combine_mask (src, mask, i); + comp4_t a = ALPHA_c (~*(dest + i)); + UNcx4_MUL_UNc (s, a); + *(dest + i) = s; + } +} + +/* if the Src is opaque, call combine_clear */ +static void +combine_out_reverse_u (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + int i; + + for (i = 0; i < width; ++i) + { + comp4_t s = combine_mask (src, mask, i); + comp4_t d = *(dest + i); + comp4_t a = ALPHA_c (~s); + UNcx4_MUL_UNc (d, a); + *(dest + i) = d; + } +} + +/* if the Src is opaque, call combine_in_u */ +/* if the Dst is opaque, call combine_over_u */ +/* if both the Src and Dst are opaque, call combine_src_u */ +static void +combine_atop_u (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + int i; + + for (i = 0; i < width; ++i) + { + comp4_t s = combine_mask (src, mask, i); + comp4_t d = *(dest + i); + comp4_t dest_a = ALPHA_c (d); + comp4_t src_ia = ALPHA_c (~s); + + UNcx4_MUL_UNc_ADD_UNcx4_MUL_UNc (s, dest_a, d, src_ia); + *(dest + i) = s; + } +} + +/* if the Src is opaque, call combine_over_reverse_u */ +/* if the Dst is opaque, call combine_in_reverse_u */ +/* if both the Src and Dst are opaque, call combine_dst_u */ +static void +combine_atop_reverse_u (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + int i; + + for (i = 0; i < width; ++i) + { + comp4_t s = combine_mask (src, mask, i); + comp4_t d = *(dest + i); + comp4_t src_a = ALPHA_c (s); + comp4_t dest_ia = ALPHA_c (~d); + + UNcx4_MUL_UNc_ADD_UNcx4_MUL_UNc (s, dest_ia, d, src_a); + *(dest + i) = s; + } +} + +/* if the Src is opaque, call combine_over_u */ +/* if the Dst is opaque, call combine_over_reverse_u */ +/* if both the Src and Dst are opaque, call combine_clear */ +static void +combine_xor_u (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + int i; + + for (i = 0; i < width; ++i) + { + comp4_t s = combine_mask (src, mask, i); + comp4_t d = *(dest + i); + comp4_t src_ia = ALPHA_c (~s); + comp4_t dest_ia = ALPHA_c (~d); + + UNcx4_MUL_UNc_ADD_UNcx4_MUL_UNc (s, dest_ia, d, src_ia); + *(dest + i) = s; + } +} + +static void +combine_add_u (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + int i; + + for (i = 0; i < width; ++i) + { + comp4_t s = combine_mask (src, mask, i); + comp4_t d = *(dest + i); + UNcx4_ADD_UNcx4 (d, s); + *(dest + i) = d; + } +} + +/* if the Src is opaque, call combine_add_u */ +/* if the Dst is opaque, call combine_add_u */ +/* if both the Src and Dst are opaque, call combine_add_u */ +static void +combine_saturate_u (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + int i; + + for (i = 0; i < width; ++i) + { + comp4_t s = combine_mask (src, mask, i); + comp4_t d = *(dest + i); + comp2_t sa, da; + + sa = s >> A_SHIFT; + da = ~d >> A_SHIFT; + if (sa > da) + { + sa = DIV_UNc (da, sa); + UNcx4_MUL_UNc (s, sa); + } + ; + UNcx4_ADD_UNcx4 (d, s); + *(dest + i) = d; + } +} + +/* + * PDF blend modes: + * The following blend modes have been taken from the PDF ISO 32000 + * specification, which at this point in time is available from + * http://www.adobe.com/devnet/acrobat/pdfs/PDF32000_2008.pdf + * The relevant chapters are 11.3.5 and 11.3.6. + * The formula for computing the final pixel color given in 11.3.6 is: + * αr × Cr = (1 – αs) × αb × Cb + (1 – αb) × αs × Cs + αb × αs × B(Cb, Cs) + * with B() being the blend function. + * Note that OVER is a special case of this operation, using B(Cb, Cs) = Cs + * + * These blend modes should match the SVG filter draft specification, as + * it has been designed to mirror ISO 32000. Note that at the current point + * no released draft exists that shows this, as the formulas have not been + * updated yet after the release of ISO 32000. + * + * The default implementation here uses the PDF_SEPARABLE_BLEND_MODE and + * PDF_NON_SEPARABLE_BLEND_MODE macros, which take the blend function as an + * argument. Note that this implementation operates on premultiplied colors, + * while the PDF specification does not. Therefore the code uses the formula + * ar.Cra = (1 – as) . Dca + (1 – ad) . Sca + B(Dca, ad, Sca, as) + */ + +/* + * Multiply + * B(Dca, ad, Sca, as) = Dca.Sca + */ + +static void +combine_multiply_u (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + int i; + + for (i = 0; i < width; ++i) + { + comp4_t s = combine_mask (src, mask, i); + comp4_t d = *(dest + i); + comp4_t ss = s; + comp4_t src_ia = ALPHA_c (~s); + comp4_t dest_ia = ALPHA_c (~d); + + UNcx4_MUL_UNc_ADD_UNcx4_MUL_UNc (ss, dest_ia, d, src_ia); + UNcx4_MUL_UNcx4 (d, s); + UNcx4_ADD_UNcx4 (d, ss); + + *(dest + i) = d; + } +} + +static void +combine_multiply_ca (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + int i; + + for (i = 0; i < width; ++i) + { + comp4_t m = *(mask + i); + comp4_t s = *(src + i); + comp4_t d = *(dest + i); + comp4_t r = d; + comp4_t dest_ia = ALPHA_c (~d); + + combine_mask_value_ca (&s, &m); + + UNcx4_MUL_UNcx4_ADD_UNcx4_MUL_UNc (r, ~m, s, dest_ia); + UNcx4_MUL_UNcx4 (d, s); + UNcx4_ADD_UNcx4 (r, d); + + *(dest + i) = r; + } +} + +#define PDF_SEPARABLE_BLEND_MODE(name) \ + static void \ + combine_ ## name ## _u (pixman_implementation_t *imp, \ + pixman_op_t op, \ + comp4_t * dest, \ + const comp4_t * src, \ + const comp4_t * mask, \ + int width) \ + { \ + int i; \ + for (i = 0; i < width; ++i) { \ + comp4_t s = combine_mask (src, mask, i); \ + comp4_t d = *(dest + i); \ + comp1_t sa = ALPHA_c (s); \ + comp1_t isa = ~sa; \ + comp1_t da = ALPHA_c (d); \ + comp1_t ida = ~da; \ + comp4_t result; \ + \ + result = d; \ + UNcx4_MUL_UNc_ADD_UNcx4_MUL_UNc (result, isa, s, ida); \ + \ + *(dest + i) = result + \ + (DIV_ONE_UNc (sa * da) << A_SHIFT) + \ + (blend_ ## name (RED_c (d), da, RED_c (s), sa) << R_SHIFT) + \ + (blend_ ## name (GREEN_c (d), da, GREEN_c (s), sa) << G_SHIFT) + \ + (blend_ ## name (BLUE_c (d), da, BLUE_c (s), sa)); \ + } \ + } \ + \ + static void \ + combine_ ## name ## _ca (pixman_implementation_t *imp, \ + pixman_op_t op, \ + comp4_t * dest, \ + const comp4_t * src, \ + const comp4_t * mask, \ + int width) \ + { \ + int i; \ + for (i = 0; i < width; ++i) { \ + comp4_t m = *(mask + i); \ + comp4_t s = *(src + i); \ + comp4_t d = *(dest + i); \ + comp1_t da = ALPHA_c (d); \ + comp1_t ida = ~da; \ + comp4_t result; \ + \ + combine_mask_value_ca (&s, &m); \ + \ + result = d; \ + UNcx4_MUL_UNcx4_ADD_UNcx4_MUL_UNc (result, ~m, s, ida); \ + \ + result += \ + (DIV_ONE_UNc (ALPHA_c (m) * da) << A_SHIFT) + \ + (blend_ ## name (RED_c (d), da, RED_c (s), RED_c (m)) << R_SHIFT) + \ + (blend_ ## name (GREEN_c (d), da, GREEN_c (s), GREEN_c (m)) << G_SHIFT) + \ + (blend_ ## name (BLUE_c (d), da, BLUE_c (s), BLUE_c (m))); \ + \ + *(dest + i) = result; \ + } \ + } + +/* + * Screen + * B(Dca, ad, Sca, as) = Dca.sa + Sca.da - Dca.Sca + */ +static inline comp4_t +blend_screen (comp4_t dca, comp4_t da, comp4_t sca, comp4_t sa) +{ + return DIV_ONE_UNc (sca * da + dca * sa - sca * dca); +} + +PDF_SEPARABLE_BLEND_MODE (screen) + +/* + * Overlay + * B(Dca, Da, Sca, Sa) = + * if 2.Dca < Da + * 2.Sca.Dca + * otherwise + * Sa.Da - 2.(Da - Dca).(Sa - Sca) + */ +static inline comp4_t +blend_overlay (comp4_t dca, comp4_t da, comp4_t sca, comp4_t sa) +{ + comp4_t rca; + + if (2 * dca < da) + rca = 2 * sca * dca; + else + rca = sa * da - 2 * (da - dca) * (sa - sca); + return DIV_ONE_UNc (rca); +} + +PDF_SEPARABLE_BLEND_MODE (overlay) + +/* + * Darken + * B(Dca, Da, Sca, Sa) = min (Sca.Da, Dca.Sa) + */ +static inline comp4_t +blend_darken (comp4_t dca, comp4_t da, comp4_t sca, comp4_t sa) +{ + comp4_t s, d; + + s = sca * da; + d = dca * sa; + return DIV_ONE_UNc (s > d ? d : s); +} + +PDF_SEPARABLE_BLEND_MODE (darken) + +/* + * Lighten + * B(Dca, Da, Sca, Sa) = max (Sca.Da, Dca.Sa) + */ +static inline comp4_t +blend_lighten (comp4_t dca, comp4_t da, comp4_t sca, comp4_t sa) +{ + comp4_t s, d; + + s = sca * da; + d = dca * sa; + return DIV_ONE_UNc (s > d ? s : d); +} + +PDF_SEPARABLE_BLEND_MODE (lighten) + +/* + * Color dodge + * B(Dca, Da, Sca, Sa) = + * if Dca == 0 + * 0 + * if Sca == Sa + * Sa.Da + * otherwise + * Sa.Da. min (1, Dca / Da / (1 - Sca/Sa)) + */ +static inline comp4_t +blend_color_dodge (comp4_t dca, comp4_t da, comp4_t sca, comp4_t sa) +{ + if (sca >= sa) + { + return dca == 0 ? 0 : DIV_ONE_UNc (sa * da); + } + else + { + comp4_t rca = dca * sa / (sa - sca); + return DIV_ONE_UNc (sa * MIN (rca, da)); + } +} + +PDF_SEPARABLE_BLEND_MODE (color_dodge) + +/* + * Color burn + * B(Dca, Da, Sca, Sa) = + * if Dca == Da + * Sa.Da + * if Sca == 0 + * 0 + * otherwise + * Sa.Da.(1 - min (1, (1 - Dca/Da).Sa / Sca)) + */ +static inline comp4_t +blend_color_burn (comp4_t dca, comp4_t da, comp4_t sca, comp4_t sa) +{ + if (sca == 0) + { + return dca < da ? 0 : DIV_ONE_UNc (sa * da); + } + else + { + comp4_t rca = (da - dca) * sa / sca; + return DIV_ONE_UNc (sa * (MAX (rca, da) - rca)); + } +} + +PDF_SEPARABLE_BLEND_MODE (color_burn) + +/* + * Hard light + * B(Dca, Da, Sca, Sa) = + * if 2.Sca < Sa + * 2.Sca.Dca + * otherwise + * Sa.Da - 2.(Da - Dca).(Sa - Sca) + */ +static inline comp4_t +blend_hard_light (comp4_t dca, comp4_t da, comp4_t sca, comp4_t sa) +{ + if (2 * sca < sa) + return DIV_ONE_UNc (2 * sca * dca); + else + return DIV_ONE_UNc (sa * da - 2 * (da - dca) * (sa - sca)); +} + +PDF_SEPARABLE_BLEND_MODE (hard_light) + +/* + * Soft light + * B(Dca, Da, Sca, Sa) = + * if (2.Sca <= Sa) + * Dca.(Sa - (1 - Dca/Da).(2.Sca - Sa)) + * otherwise if Dca.4 <= Da + * Dca.(Sa + (2.Sca - Sa).((16.Dca/Da - 12).Dca/Da + 3) + * otherwise + * (Dca.Sa + (SQRT (Dca/Da).Da - Dca).(2.Sca - Sa)) + */ +static inline comp4_t +blend_soft_light (comp4_t dca_org, + comp4_t da_org, + comp4_t sca_org, + comp4_t sa_org) +{ + double dca = dca_org * (1.0 / MASK); + double da = da_org * (1.0 / MASK); + double sca = sca_org * (1.0 / MASK); + double sa = sa_org * (1.0 / MASK); + double rca; + + if (2 * sca < sa) + { + if (da == 0) + rca = dca * sa; + else + rca = dca * sa - dca * (da - dca) * (sa - 2 * sca) / da; + } + else if (da == 0) + { + rca = 0; + } + else if (4 * dca <= da) + { + rca = dca * sa + + (2 * sca - sa) * dca * ((16 * dca / da - 12) * dca / da + 3); + } + else + { + rca = dca * sa + (sqrt (dca * da) - dca) * (2 * sca - sa); + } + return rca * MASK + 0.5; +} + +PDF_SEPARABLE_BLEND_MODE (soft_light) + +/* + * Difference + * B(Dca, Da, Sca, Sa) = abs (Dca.Sa - Sca.Da) + */ +static inline comp4_t +blend_difference (comp4_t dca, comp4_t da, comp4_t sca, comp4_t sa) +{ + comp4_t dcasa = dca * sa; + comp4_t scada = sca * da; + + if (scada < dcasa) + return DIV_ONE_UNc (dcasa - scada); + else + return DIV_ONE_UNc (scada - dcasa); +} + +PDF_SEPARABLE_BLEND_MODE (difference) + +/* + * Exclusion + * B(Dca, Da, Sca, Sa) = (Sca.Da + Dca.Sa - 2.Sca.Dca) + */ + +/* This can be made faster by writing it directly and not using + * PDF_SEPARABLE_BLEND_MODE, but that's a performance optimization */ + +static inline comp4_t +blend_exclusion (comp4_t dca, comp4_t da, comp4_t sca, comp4_t sa) +{ + return DIV_ONE_UNc (sca * da + dca * sa - 2 * dca * sca); +} + +PDF_SEPARABLE_BLEND_MODE (exclusion) + +#undef PDF_SEPARABLE_BLEND_MODE + +/* + * PDF nonseperable blend modes are implemented using the following functions + * to operate in Hsl space, with Cmax, Cmid, Cmin referring to the max, mid + * and min value of the red, green and blue components. + * + * LUM (C) = 0.3 × Cred + 0.59 × Cgreen + 0.11 × Cblue + * + * clip_color (C): + * l = LUM (C) + * min = Cmin + * max = Cmax + * if n < 0.0 + * C = l + ( ( ( C – l ) × l ) ⁄ ( l – min ) ) + * if x > 1.0 + * C = l + ( ( ( C – l ) × ( 1 – l ) ) ⁄ ( max – l ) ) + * return C + * + * set_lum (C, l): + * d = l – LUM (C) + * C += d + * return clip_color (C) + * + * SAT (C) = CH_MAX (C) - CH_MIN (C) + * + * set_sat (C, s): + * if Cmax > Cmin + * Cmid = ( ( ( Cmid – Cmin ) × s ) ⁄ ( Cmax – Cmin ) ) + * Cmax = s + * else + * Cmid = Cmax = 0.0 + * Cmin = 0.0 + * return C + */ + +/* For premultiplied colors, we need to know what happens when C is + * multiplied by a real number. LUM and SAT are linear: + * + * LUM (r × C) = r × LUM (C) SAT (r * C) = r * SAT (C) + * + * If we extend clip_color with an extra argument a and change + * + * if x >= 1.0 + * + * into + * + * if x >= a + * + * then clip_color is also linear: + * + * r * clip_color (C, a) = clip_color (r_c, ra); + * + * for positive r. + * + * Similarly, we can extend set_lum with an extra argument that is just passed + * on to clip_color: + * + * r * set_lum ( C, l, a) + * + * = r × clip_color ( C + l - LUM (C), a) + * + * = clip_color ( r * C + r × l - r * LUM (C), r * a) + * + * = set_lum ( r * C, r * l, r * a) + * + * Finally, set_sat: + * + * r * set_sat (C, s) = set_sat (x * C, r * s) + * + * The above holds for all non-zero x, because they x'es in the fraction for + * C_mid cancel out. Specifically, it holds for x = r: + * + * r * set_sat (C, s) = set_sat (r_c, rs) + * + */ + +/* So, for the non-separable PDF blend modes, we have (using s, d for + * non-premultiplied colors, and S, D for premultiplied: + * + * Color: + * + * a_s * a_d * B(s, d) + * = a_s * a_d * set_lum (S/a_s, LUM (D/a_d), 1) + * = set_lum (S * a_d, a_s * LUM (D), a_s * a_d) + * + * + * Luminosity: + * + * a_s * a_d * B(s, d) + * = a_s * a_d * set_lum (D/a_d, LUM(S/a_s), 1) + * = set_lum (a_s * D, a_d * LUM(S), a_s * a_d) + * + * + * Saturation: + * + * a_s * a_d * B(s, d) + * = a_s * a_d * set_lum (set_sat (D/a_d, SAT (S/a_s)), LUM (D/a_d), 1) + * = set_lum (a_s * a_d * set_sat (D/a_d, SAT (S/a_s)), + * a_s * LUM (D), a_s * a_d) + * = set_lum (set_sat (a_s * D, a_d * SAT (S), a_s * LUM (D), a_s * a_d)) + * + * Hue: + * + * a_s * a_d * B(s, d) + * = a_s * a_d * set_lum (set_sat (S/a_s, SAT (D/a_d)), LUM (D/a_d), 1) + * = a_s * a_d * set_lum (set_sat (a_d * S, a_s * SAT (D)), + * a_s * LUM (D), a_s * a_d) + * + */ + +#define CH_MIN(c) (c[0] < c[1] ? (c[0] < c[2] ? c[0] : c[2]) : (c[1] < c[2] ? c[1] : c[2])) +#define CH_MAX(c) (c[0] > c[1] ? (c[0] > c[2] ? c[0] : c[2]) : (c[1] > c[2] ? c[1] : c[2])) +#define LUM(c) ((c[0] * 30 + c[1] * 59 + c[2] * 11) / 100) +#define SAT(c) (CH_MAX (c) - CH_MIN (c)) + +#define PDF_NON_SEPARABLE_BLEND_MODE(name) \ + static void \ + combine_ ## name ## _u (pixman_implementation_t *imp, \ + pixman_op_t op, \ + comp4_t *dest, \ + const comp4_t *src, \ + const comp4_t *mask, \ + int width) \ + { \ + int i; \ + for (i = 0; i < width; ++i) \ + { \ + comp4_t s = combine_mask (src, mask, i); \ + comp4_t d = *(dest + i); \ + comp1_t sa = ALPHA_c (s); \ + comp1_t isa = ~sa; \ + comp1_t da = ALPHA_c (d); \ + comp1_t ida = ~da; \ + comp4_t result; \ + comp4_t sc[3], dc[3], c[3]; \ + \ + result = d; \ + UNcx4_MUL_UNc_ADD_UNcx4_MUL_UNc (result, isa, s, ida); \ + dc[0] = RED_c (d); \ + sc[0] = RED_c (s); \ + dc[1] = GREEN_c (d); \ + sc[1] = GREEN_c (s); \ + dc[2] = BLUE_c (d); \ + sc[2] = BLUE_c (s); \ + blend_ ## name (c, dc, da, sc, sa); \ + \ + *(dest + i) = result + \ + (DIV_ONE_UNc (sa * da) << A_SHIFT) + \ + (DIV_ONE_UNc (c[0]) << R_SHIFT) + \ + (DIV_ONE_UNc (c[1]) << G_SHIFT) + \ + (DIV_ONE_UNc (c[2])); \ + } \ + } + +static void +set_lum (comp4_t dest[3], comp4_t src[3], comp4_t sa, comp4_t lum) +{ + double a, l, min, max; + double tmp[3]; + + a = sa * (1.0 / MASK); + + l = lum * (1.0 / MASK); + tmp[0] = src[0] * (1.0 / MASK); + tmp[1] = src[1] * (1.0 / MASK); + tmp[2] = src[2] * (1.0 / MASK); + + l = l - LUM (tmp); + tmp[0] += l; + tmp[1] += l; + tmp[2] += l; + + /* clip_color */ + l = LUM (tmp); + min = CH_MIN (tmp); + max = CH_MAX (tmp); + + if (min < 0) + { + if (l - min == 0.0) + { + tmp[0] = 0; + tmp[1] = 0; + tmp[2] = 0; + } + else + { + tmp[0] = l + (tmp[0] - l) * l / (l - min); + tmp[1] = l + (tmp[1] - l) * l / (l - min); + tmp[2] = l + (tmp[2] - l) * l / (l - min); + } + } + if (max > a) + { + if (max - l == 0.0) + { + tmp[0] = a; + tmp[1] = a; + tmp[2] = a; + } + else + { + tmp[0] = l + (tmp[0] - l) * (a - l) / (max - l); + tmp[1] = l + (tmp[1] - l) * (a - l) / (max - l); + tmp[2] = l + (tmp[2] - l) * (a - l) / (max - l); + } + } + + dest[0] = tmp[0] * MASK + 0.5; + dest[1] = tmp[1] * MASK + 0.5; + dest[2] = tmp[2] * MASK + 0.5; +} + +static void +set_sat (comp4_t dest[3], comp4_t src[3], comp4_t sat) +{ + int id[3]; + comp4_t min, max; + + if (src[0] > src[1]) + { + if (src[0] > src[2]) + { + id[0] = 0; + if (src[1] > src[2]) + { + id[1] = 1; + id[2] = 2; + } + else + { + id[1] = 2; + id[2] = 1; + } + } + else + { + id[0] = 2; + id[1] = 0; + id[2] = 1; + } + } + else + { + if (src[0] > src[2]) + { + id[0] = 1; + id[1] = 0; + id[2] = 2; + } + else + { + id[2] = 0; + if (src[1] > src[2]) + { + id[0] = 1; + id[1] = 2; + } + else + { + id[0] = 2; + id[1] = 1; + } + } + } + + max = dest[id[0]]; + min = dest[id[2]]; + if (max > min) + { + dest[id[1]] = (dest[id[1]] - min) * sat / (max - min); + dest[id[0]] = sat; + dest[id[2]] = 0; + } + else + { + dest[0] = dest[1] = dest[2] = 0; + } +} + +/* + * Hue: + * B(Cb, Cs) = set_lum (set_sat (Cs, SAT (Cb)), LUM (Cb)) + */ +static inline void +blend_hsl_hue (comp4_t c[3], + comp4_t dc[3], + comp4_t da, + comp4_t sc[3], + comp4_t sa) +{ + c[0] = sc[0] * da; + c[1] = sc[1] * da; + c[2] = sc[2] * da; + set_sat (c, c, SAT (dc) * sa); + set_lum (c, c, sa * da, LUM (dc) * sa); +} + +PDF_NON_SEPARABLE_BLEND_MODE (hsl_hue) + +/* + * Saturation: + * B(Cb, Cs) = set_lum (set_sat (Cb, SAT (Cs)), LUM (Cb)) + */ +static inline void +blend_hsl_saturation (comp4_t c[3], + comp4_t dc[3], + comp4_t da, + comp4_t sc[3], + comp4_t sa) +{ + c[0] = dc[0] * sa; + c[1] = dc[1] * sa; + c[2] = dc[2] * sa; + set_sat (c, c, SAT (sc) * da); + set_lum (c, c, sa * da, LUM (dc) * sa); +} + +PDF_NON_SEPARABLE_BLEND_MODE (hsl_saturation) + +/* + * Color: + * B(Cb, Cs) = set_lum (Cs, LUM (Cb)) + */ +static inline void +blend_hsl_color (comp4_t c[3], + comp4_t dc[3], + comp4_t da, + comp4_t sc[3], + comp4_t sa) +{ + c[0] = sc[0] * da; + c[1] = sc[1] * da; + c[2] = sc[2] * da; + set_lum (c, c, sa * da, LUM (dc) * sa); +} + +PDF_NON_SEPARABLE_BLEND_MODE (hsl_color) + +/* + * Luminosity: + * B(Cb, Cs) = set_lum (Cb, LUM (Cs)) + */ +static inline void +blend_hsl_luminosity (comp4_t c[3], + comp4_t dc[3], + comp4_t da, + comp4_t sc[3], + comp4_t sa) +{ + c[0] = dc[0] * sa; + c[1] = dc[1] * sa; + c[2] = dc[2] * sa; + set_lum (c, c, sa * da, LUM (sc) * da); +} + +PDF_NON_SEPARABLE_BLEND_MODE (hsl_luminosity) + +#undef SAT +#undef LUM +#undef CH_MAX +#undef CH_MIN +#undef PDF_NON_SEPARABLE_BLEND_MODE + +/* Overlay + * + * All of the disjoint composing functions + * + * The four entries in the first column indicate what source contributions + * come from each of the four areas of the picture -- areas covered by neither + * A nor B, areas covered only by A, areas covered only by B and finally + * areas covered by both A and B. + * + * Disjoint Conjoint + * Fa Fb Fa Fb + * (0,0,0,0) 0 0 0 0 + * (0,A,0,A) 1 0 1 0 + * (0,0,B,B) 0 1 0 1 + * (0,A,B,A) 1 min((1-a)/b,1) 1 max(1-a/b,0) + * (0,A,B,B) min((1-b)/a,1) 1 max(1-b/a,0) 1 + * (0,0,0,A) max(1-(1-b)/a,0) 0 min(1,b/a) 0 + * (0,0,0,B) 0 max(1-(1-a)/b,0) 0 min(a/b,1) + * (0,A,0,0) min(1,(1-b)/a) 0 max(1-b/a,0) 0 + * (0,0,B,0) 0 min(1,(1-a)/b) 0 max(1-a/b,0) + * (0,0,B,A) max(1-(1-b)/a,0) min(1,(1-a)/b) min(1,b/a) max(1-a/b,0) + * (0,A,0,B) min(1,(1-b)/a) max(1-(1-a)/b,0) max(1-b/a,0) min(1,a/b) + * (0,A,B,0) min(1,(1-b)/a) min(1,(1-a)/b) max(1-b/a,0) max(1-a/b,0) + */ + +#define COMBINE_A_OUT 1 +#define COMBINE_A_IN 2 +#define COMBINE_B_OUT 4 +#define COMBINE_B_IN 8 + +#define COMBINE_CLEAR 0 +#define COMBINE_A (COMBINE_A_OUT | COMBINE_A_IN) +#define COMBINE_B (COMBINE_B_OUT | COMBINE_B_IN) +#define COMBINE_A_OVER (COMBINE_A_OUT | COMBINE_B_OUT | COMBINE_A_IN) +#define COMBINE_B_OVER (COMBINE_A_OUT | COMBINE_B_OUT | COMBINE_B_IN) +#define COMBINE_A_ATOP (COMBINE_B_OUT | COMBINE_A_IN) +#define COMBINE_B_ATOP (COMBINE_A_OUT | COMBINE_B_IN) +#define COMBINE_XOR (COMBINE_A_OUT | COMBINE_B_OUT) + +/* portion covered by a but not b */ +static comp1_t +combine_disjoint_out_part (comp1_t a, comp1_t b) +{ + /* min (1, (1-b) / a) */ + + b = ~b; /* 1 - b */ + if (b >= a) /* 1 - b >= a -> (1-b)/a >= 1 */ + return MASK; /* 1 */ + return DIV_UNc (b, a); /* (1-b) / a */ +} + +/* portion covered by both a and b */ +static comp1_t +combine_disjoint_in_part (comp1_t a, comp1_t b) +{ + /* max (1-(1-b)/a,0) */ + /* = - min ((1-b)/a - 1, 0) */ + /* = 1 - min (1, (1-b)/a) */ + + b = ~b; /* 1 - b */ + if (b >= a) /* 1 - b >= a -> (1-b)/a >= 1 */ + return 0; /* 1 - 1 */ + return ~DIV_UNc(b, a); /* 1 - (1-b) / a */ +} + +/* portion covered by a but not b */ +static comp1_t +combine_conjoint_out_part (comp1_t a, comp1_t b) +{ + /* max (1-b/a,0) */ + /* = 1-min(b/a,1) */ + + /* min (1, (1-b) / a) */ + + if (b >= a) /* b >= a -> b/a >= 1 */ + return 0x00; /* 0 */ + return ~DIV_UNc(b, a); /* 1 - b/a */ +} + +/* portion covered by both a and b */ +static comp1_t +combine_conjoint_in_part (comp1_t a, comp1_t b) +{ + /* min (1,b/a) */ + + if (b >= a) /* b >= a -> b/a >= 1 */ + return MASK; /* 1 */ + return DIV_UNc (b, a); /* b/a */ +} + +#define GET_COMP(v, i) ((comp2_t) (comp1_t) ((v) >> i)) + +#define ADD(x, y, i, t) \ + ((t) = GET_COMP (x, i) + GET_COMP (y, i), \ + (comp4_t) ((comp1_t) ((t) | (0 - ((t) >> G_SHIFT)))) << (i)) + +#define GENERIC(x, y, i, ax, ay, t, u, v) \ + ((t) = (MUL_UNc (GET_COMP (y, i), ay, (u)) + \ + MUL_UNc (GET_COMP (x, i), ax, (v))), \ + (comp4_t) ((comp1_t) ((t) | \ + (0 - ((t) >> G_SHIFT)))) << (i)) + +static void +combine_disjoint_general_u (comp4_t * dest, + const comp4_t *src, + const comp4_t *mask, + int width, + comp1_t combine) +{ + int i; + + for (i = 0; i < width; ++i) + { + comp4_t s = combine_mask (src, mask, i); + comp4_t d = *(dest + i); + comp4_t m, n, o, p; + comp2_t Fa, Fb, t, u, v; + comp1_t sa = s >> A_SHIFT; + comp1_t da = d >> A_SHIFT; + + switch (combine & COMBINE_A) + { + default: + Fa = 0; + break; + + case COMBINE_A_OUT: + Fa = combine_disjoint_out_part (sa, da); + break; + + case COMBINE_A_IN: + Fa = combine_disjoint_in_part (sa, da); + break; + + case COMBINE_A: + Fa = MASK; + break; + } + + switch (combine & COMBINE_B) + { + default: + Fb = 0; + break; + + case COMBINE_B_OUT: + Fb = combine_disjoint_out_part (da, sa); + break; + + case COMBINE_B_IN: + Fb = combine_disjoint_in_part (da, sa); + break; + + case COMBINE_B: + Fb = MASK; + break; + } + m = GENERIC (s, d, 0, Fa, Fb, t, u, v); + n = GENERIC (s, d, G_SHIFT, Fa, Fb, t, u, v); + o = GENERIC (s, d, R_SHIFT, Fa, Fb, t, u, v); + p = GENERIC (s, d, A_SHIFT, Fa, Fb, t, u, v); + s = m | n | o | p; + *(dest + i) = s; + } +} + +static void +combine_disjoint_over_u (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + int i; + + for (i = 0; i < width; ++i) + { + comp4_t s = combine_mask (src, mask, i); + comp2_t a = s >> A_SHIFT; + + if (s != 0x00) + { + comp4_t d = *(dest + i); + a = combine_disjoint_out_part (d >> A_SHIFT, a); + UNcx4_MUL_UNc_ADD_UNcx4 (d, a, s); + + *(dest + i) = d; + } + } +} + +static void +combine_disjoint_in_u (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + combine_disjoint_general_u (dest, src, mask, width, COMBINE_A_IN); +} + +static void +combine_disjoint_in_reverse_u (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + combine_disjoint_general_u (dest, src, mask, width, COMBINE_B_IN); +} + +static void +combine_disjoint_out_u (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + combine_disjoint_general_u (dest, src, mask, width, COMBINE_A_OUT); +} + +static void +combine_disjoint_out_reverse_u (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + combine_disjoint_general_u (dest, src, mask, width, COMBINE_B_OUT); +} + +static void +combine_disjoint_atop_u (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + combine_disjoint_general_u (dest, src, mask, width, COMBINE_A_ATOP); +} + +static void +combine_disjoint_atop_reverse_u (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + combine_disjoint_general_u (dest, src, mask, width, COMBINE_B_ATOP); +} + +static void +combine_disjoint_xor_u (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + combine_disjoint_general_u (dest, src, mask, width, COMBINE_XOR); +} + +static void +combine_conjoint_general_u (comp4_t * dest, + const comp4_t *src, + const comp4_t *mask, + int width, + comp1_t combine) +{ + int i; + + for (i = 0; i < width; ++i) + { + comp4_t s = combine_mask (src, mask, i); + comp4_t d = *(dest + i); + comp4_t m, n, o, p; + comp2_t Fa, Fb, t, u, v; + comp1_t sa = s >> A_SHIFT; + comp1_t da = d >> A_SHIFT; + + switch (combine & COMBINE_A) + { + default: + Fa = 0; + break; + + case COMBINE_A_OUT: + Fa = combine_conjoint_out_part (sa, da); + break; + + case COMBINE_A_IN: + Fa = combine_conjoint_in_part (sa, da); + break; + + case COMBINE_A: + Fa = MASK; + break; + } + + switch (combine & COMBINE_B) + { + default: + Fb = 0; + break; + + case COMBINE_B_OUT: + Fb = combine_conjoint_out_part (da, sa); + break; + + case COMBINE_B_IN: + Fb = combine_conjoint_in_part (da, sa); + break; + + case COMBINE_B: + Fb = MASK; + break; + } + + m = GENERIC (s, d, 0, Fa, Fb, t, u, v); + n = GENERIC (s, d, G_SHIFT, Fa, Fb, t, u, v); + o = GENERIC (s, d, R_SHIFT, Fa, Fb, t, u, v); + p = GENERIC (s, d, A_SHIFT, Fa, Fb, t, u, v); + + s = m | n | o | p; + + *(dest + i) = s; + } +} + +static void +combine_conjoint_over_u (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + combine_conjoint_general_u (dest, src, mask, width, COMBINE_A_OVER); +} + +static void +combine_conjoint_over_reverse_u (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + combine_conjoint_general_u (dest, src, mask, width, COMBINE_B_OVER); +} + +static void +combine_conjoint_in_u (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + combine_conjoint_general_u (dest, src, mask, width, COMBINE_A_IN); +} + +static void +combine_conjoint_in_reverse_u (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + combine_conjoint_general_u (dest, src, mask, width, COMBINE_B_IN); +} + +static void +combine_conjoint_out_u (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + combine_conjoint_general_u (dest, src, mask, width, COMBINE_A_OUT); +} + +static void +combine_conjoint_out_reverse_u (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + combine_conjoint_general_u (dest, src, mask, width, COMBINE_B_OUT); +} + +static void +combine_conjoint_atop_u (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + combine_conjoint_general_u (dest, src, mask, width, COMBINE_A_ATOP); +} + +static void +combine_conjoint_atop_reverse_u (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + combine_conjoint_general_u (dest, src, mask, width, COMBINE_B_ATOP); +} + +static void +combine_conjoint_xor_u (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + combine_conjoint_general_u (dest, src, mask, width, COMBINE_XOR); +} + +/************************************************************************/ +/*********************** Per Channel functions **************************/ +/************************************************************************/ + +static void +combine_clear_ca (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + memset (dest, 0, width * sizeof(comp4_t)); +} + +static void +combine_src_ca (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + int i; + + for (i = 0; i < width; ++i) + { + comp4_t s = *(src + i); + comp4_t m = *(mask + i); + + combine_mask_value_ca (&s, &m); + + *(dest + i) = s; + } +} + +static void +combine_over_ca (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + int i; + + for (i = 0; i < width; ++i) + { + comp4_t s = *(src + i); + comp4_t m = *(mask + i); + comp4_t a; + + combine_mask_ca (&s, &m); + + a = ~m; + if (a) + { + comp4_t d = *(dest + i); + UNcx4_MUL_UNcx4_ADD_UNcx4 (d, a, s); + s = d; + } + + *(dest + i) = s; + } +} + +static void +combine_over_reverse_ca (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + int i; + + for (i = 0; i < width; ++i) + { + comp4_t d = *(dest + i); + comp4_t a = ~d >> A_SHIFT; + + if (a) + { + comp4_t s = *(src + i); + comp4_t m = *(mask + i); + + UNcx4_MUL_UNcx4 (s, m); + UNcx4_MUL_UNc_ADD_UNcx4 (s, a, d); + + *(dest + i) = s; + } + } +} + +static void +combine_in_ca (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + int i; + + for (i = 0; i < width; ++i) + { + comp4_t d = *(dest + i); + comp2_t a = d >> A_SHIFT; + comp4_t s = 0; + + if (a) + { + comp4_t m = *(mask + i); + + s = *(src + i); + combine_mask_value_ca (&s, &m); + + if (a != MASK) + UNcx4_MUL_UNc (s, a); + } + + *(dest + i) = s; + } +} + +static void +combine_in_reverse_ca (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + int i; + + for (i = 0; i < width; ++i) + { + comp4_t s = *(src + i); + comp4_t m = *(mask + i); + comp4_t a; + + combine_mask_alpha_ca (&s, &m); + + a = m; + if (a != ~0) + { + comp4_t d = 0; + + if (a) + { + d = *(dest + i); + UNcx4_MUL_UNcx4 (d, a); + } + + *(dest + i) = d; + } + } +} + +static void +combine_out_ca (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + int i; + + for (i = 0; i < width; ++i) + { + comp4_t d = *(dest + i); + comp2_t a = ~d >> A_SHIFT; + comp4_t s = 0; + + if (a) + { + comp4_t m = *(mask + i); + + s = *(src + i); + combine_mask_value_ca (&s, &m); + + if (a != MASK) + UNcx4_MUL_UNc (s, a); + } + + *(dest + i) = s; + } +} + +static void +combine_out_reverse_ca (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + int i; + + for (i = 0; i < width; ++i) + { + comp4_t s = *(src + i); + comp4_t m = *(mask + i); + comp4_t a; + + combine_mask_alpha_ca (&s, &m); + + a = ~m; + if (a != ~0) + { + comp4_t d = 0; + + if (a) + { + d = *(dest + i); + UNcx4_MUL_UNcx4 (d, a); + } + + *(dest + i) = d; + } + } +} + +static void +combine_atop_ca (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + int i; + + for (i = 0; i < width; ++i) + { + comp4_t d = *(dest + i); + comp4_t s = *(src + i); + comp4_t m = *(mask + i); + comp4_t ad; + comp2_t as = d >> A_SHIFT; + + combine_mask_ca (&s, &m); + + ad = ~m; + + UNcx4_MUL_UNcx4_ADD_UNcx4_MUL_UNc (d, ad, s, as); + + *(dest + i) = d; + } +} + +static void +combine_atop_reverse_ca (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + int i; + + for (i = 0; i < width; ++i) + { + comp4_t d = *(dest + i); + comp4_t s = *(src + i); + comp4_t m = *(mask + i); + comp4_t ad; + comp2_t as = ~d >> A_SHIFT; + + combine_mask_ca (&s, &m); + + ad = m; + + UNcx4_MUL_UNcx4_ADD_UNcx4_MUL_UNc (d, ad, s, as); + + *(dest + i) = d; + } +} + +static void +combine_xor_ca (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + int i; + + for (i = 0; i < width; ++i) + { + comp4_t d = *(dest + i); + comp4_t s = *(src + i); + comp4_t m = *(mask + i); + comp4_t ad; + comp2_t as = ~d >> A_SHIFT; + + combine_mask_ca (&s, &m); + + ad = ~m; + + UNcx4_MUL_UNcx4_ADD_UNcx4_MUL_UNc (d, ad, s, as); + + *(dest + i) = d; + } +} + +static void +combine_add_ca (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + int i; + + for (i = 0; i < width; ++i) + { + comp4_t s = *(src + i); + comp4_t m = *(mask + i); + comp4_t d = *(dest + i); + + combine_mask_value_ca (&s, &m); + + UNcx4_ADD_UNcx4 (d, s); + + *(dest + i) = d; + } +} + +static void +combine_saturate_ca (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + int i; + + for (i = 0; i < width; ++i) + { + comp4_t s, d; + comp2_t sa, sr, sg, sb, da; + comp2_t t, u, v; + comp4_t m, n, o, p; + + d = *(dest + i); + s = *(src + i); + m = *(mask + i); + + combine_mask_ca (&s, &m); + + sa = (m >> A_SHIFT); + sr = (m >> R_SHIFT) & MASK; + sg = (m >> G_SHIFT) & MASK; + sb = m & MASK; + da = ~d >> A_SHIFT; + + if (sb <= da) + m = ADD (s, d, 0, t); + else + m = GENERIC (s, d, 0, (da << G_SHIFT) / sb, MASK, t, u, v); + + if (sg <= da) + n = ADD (s, d, G_SHIFT, t); + else + n = GENERIC (s, d, G_SHIFT, (da << G_SHIFT) / sg, MASK, t, u, v); + + if (sr <= da) + o = ADD (s, d, R_SHIFT, t); + else + o = GENERIC (s, d, R_SHIFT, (da << G_SHIFT) / sr, MASK, t, u, v); + + if (sa <= da) + p = ADD (s, d, A_SHIFT, t); + else + p = GENERIC (s, d, A_SHIFT, (da << G_SHIFT) / sa, MASK, t, u, v); + + *(dest + i) = m | n | o | p; + } +} + +static void +combine_disjoint_general_ca (comp4_t * dest, + const comp4_t *src, + const comp4_t *mask, + int width, + comp1_t combine) +{ + int i; + + for (i = 0; i < width; ++i) + { + comp4_t s, d; + comp4_t m, n, o, p; + comp4_t Fa, Fb; + comp2_t t, u, v; + comp4_t sa; + comp1_t da; + + s = *(src + i); + m = *(mask + i); + d = *(dest + i); + da = d >> A_SHIFT; + + combine_mask_ca (&s, &m); + + sa = m; + + switch (combine & COMBINE_A) + { + default: + Fa = 0; + break; + + case COMBINE_A_OUT: + m = (comp4_t)combine_disjoint_out_part ((comp1_t) (sa >> 0), da); + n = (comp4_t)combine_disjoint_out_part ((comp1_t) (sa >> G_SHIFT), da) << G_SHIFT; + o = (comp4_t)combine_disjoint_out_part ((comp1_t) (sa >> R_SHIFT), da) << R_SHIFT; + p = (comp4_t)combine_disjoint_out_part ((comp1_t) (sa >> A_SHIFT), da) << A_SHIFT; + Fa = m | n | o | p; + break; + + case COMBINE_A_IN: + m = (comp4_t)combine_disjoint_in_part ((comp1_t) (sa >> 0), da); + n = (comp4_t)combine_disjoint_in_part ((comp1_t) (sa >> G_SHIFT), da) << G_SHIFT; + o = (comp4_t)combine_disjoint_in_part ((comp1_t) (sa >> R_SHIFT), da) << R_SHIFT; + p = (comp4_t)combine_disjoint_in_part ((comp1_t) (sa >> A_SHIFT), da) << A_SHIFT; + Fa = m | n | o | p; + break; + + case COMBINE_A: + Fa = ~0; + break; + } + + switch (combine & COMBINE_B) + { + default: + Fb = 0; + break; + + case COMBINE_B_OUT: + m = (comp4_t)combine_disjoint_out_part (da, (comp1_t) (sa >> 0)); + n = (comp4_t)combine_disjoint_out_part (da, (comp1_t) (sa >> G_SHIFT)) << G_SHIFT; + o = (comp4_t)combine_disjoint_out_part (da, (comp1_t) (sa >> R_SHIFT)) << R_SHIFT; + p = (comp4_t)combine_disjoint_out_part (da, (comp1_t) (sa >> A_SHIFT)) << A_SHIFT; + Fb = m | n | o | p; + break; + + case COMBINE_B_IN: + m = (comp4_t)combine_disjoint_in_part (da, (comp1_t) (sa >> 0)); + n = (comp4_t)combine_disjoint_in_part (da, (comp1_t) (sa >> G_SHIFT)) << G_SHIFT; + o = (comp4_t)combine_disjoint_in_part (da, (comp1_t) (sa >> R_SHIFT)) << R_SHIFT; + p = (comp4_t)combine_disjoint_in_part (da, (comp1_t) (sa >> A_SHIFT)) << A_SHIFT; + Fb = m | n | o | p; + break; + + case COMBINE_B: + Fb = ~0; + break; + } + m = GENERIC (s, d, 0, GET_COMP (Fa, 0), GET_COMP (Fb, 0), t, u, v); + n = GENERIC (s, d, G_SHIFT, GET_COMP (Fa, G_SHIFT), GET_COMP (Fb, G_SHIFT), t, u, v); + o = GENERIC (s, d, R_SHIFT, GET_COMP (Fa, R_SHIFT), GET_COMP (Fb, R_SHIFT), t, u, v); + p = GENERIC (s, d, A_SHIFT, GET_COMP (Fa, A_SHIFT), GET_COMP (Fb, A_SHIFT), t, u, v); + + s = m | n | o | p; + + *(dest + i) = s; + } +} + +static void +combine_disjoint_over_ca (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + combine_disjoint_general_ca (dest, src, mask, width, COMBINE_A_OVER); +} + +static void +combine_disjoint_in_ca (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + combine_disjoint_general_ca (dest, src, mask, width, COMBINE_A_IN); +} + +static void +combine_disjoint_in_reverse_ca (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + combine_disjoint_general_ca (dest, src, mask, width, COMBINE_B_IN); +} + +static void +combine_disjoint_out_ca (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + combine_disjoint_general_ca (dest, src, mask, width, COMBINE_A_OUT); +} + +static void +combine_disjoint_out_reverse_ca (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + combine_disjoint_general_ca (dest, src, mask, width, COMBINE_B_OUT); +} + +static void +combine_disjoint_atop_ca (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + combine_disjoint_general_ca (dest, src, mask, width, COMBINE_A_ATOP); +} + +static void +combine_disjoint_atop_reverse_ca (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + combine_disjoint_general_ca (dest, src, mask, width, COMBINE_B_ATOP); +} + +static void +combine_disjoint_xor_ca (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + combine_disjoint_general_ca (dest, src, mask, width, COMBINE_XOR); +} + +static void +combine_conjoint_general_ca (comp4_t * dest, + const comp4_t *src, + const comp4_t *mask, + int width, + comp1_t combine) +{ + int i; + + for (i = 0; i < width; ++i) + { + comp4_t s, d; + comp4_t m, n, o, p; + comp4_t Fa, Fb; + comp2_t t, u, v; + comp4_t sa; + comp1_t da; + + s = *(src + i); + m = *(mask + i); + d = *(dest + i); + da = d >> A_SHIFT; + + combine_mask_ca (&s, &m); + + sa = m; + + switch (combine & COMBINE_A) + { + default: + Fa = 0; + break; + + case COMBINE_A_OUT: + m = (comp4_t)combine_conjoint_out_part ((comp1_t) (sa >> 0), da); + n = (comp4_t)combine_conjoint_out_part ((comp1_t) (sa >> G_SHIFT), da) << G_SHIFT; + o = (comp4_t)combine_conjoint_out_part ((comp1_t) (sa >> R_SHIFT), da) << R_SHIFT; + p = (comp4_t)combine_conjoint_out_part ((comp1_t) (sa >> A_SHIFT), da) << A_SHIFT; + Fa = m | n | o | p; + break; + + case COMBINE_A_IN: + m = (comp4_t)combine_conjoint_in_part ((comp1_t) (sa >> 0), da); + n = (comp4_t)combine_conjoint_in_part ((comp1_t) (sa >> G_SHIFT), da) << G_SHIFT; + o = (comp4_t)combine_conjoint_in_part ((comp1_t) (sa >> R_SHIFT), da) << R_SHIFT; + p = (comp4_t)combine_conjoint_in_part ((comp1_t) (sa >> A_SHIFT), da) << A_SHIFT; + Fa = m | n | o | p; + break; + + case COMBINE_A: + Fa = ~0; + break; + } + + switch (combine & COMBINE_B) + { + default: + Fb = 0; + break; + + case COMBINE_B_OUT: + m = (comp4_t)combine_conjoint_out_part (da, (comp1_t) (sa >> 0)); + n = (comp4_t)combine_conjoint_out_part (da, (comp1_t) (sa >> G_SHIFT)) << G_SHIFT; + o = (comp4_t)combine_conjoint_out_part (da, (comp1_t) (sa >> R_SHIFT)) << R_SHIFT; + p = (comp4_t)combine_conjoint_out_part (da, (comp1_t) (sa >> A_SHIFT)) << A_SHIFT; + Fb = m | n | o | p; + break; + + case COMBINE_B_IN: + m = (comp4_t)combine_conjoint_in_part (da, (comp1_t) (sa >> 0)); + n = (comp4_t)combine_conjoint_in_part (da, (comp1_t) (sa >> G_SHIFT)) << G_SHIFT; + o = (comp4_t)combine_conjoint_in_part (da, (comp1_t) (sa >> R_SHIFT)) << R_SHIFT; + p = (comp4_t)combine_conjoint_in_part (da, (comp1_t) (sa >> A_SHIFT)) << A_SHIFT; + Fb = m | n | o | p; + break; + + case COMBINE_B: + Fb = ~0; + break; + } + m = GENERIC (s, d, 0, GET_COMP (Fa, 0), GET_COMP (Fb, 0), t, u, v); + n = GENERIC (s, d, G_SHIFT, GET_COMP (Fa, G_SHIFT), GET_COMP (Fb, G_SHIFT), t, u, v); + o = GENERIC (s, d, R_SHIFT, GET_COMP (Fa, R_SHIFT), GET_COMP (Fb, R_SHIFT), t, u, v); + p = GENERIC (s, d, A_SHIFT, GET_COMP (Fa, A_SHIFT), GET_COMP (Fb, A_SHIFT), t, u, v); + + s = m | n | o | p; + + *(dest + i) = s; + } +} + +static void +combine_conjoint_over_ca (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + combine_conjoint_general_ca (dest, src, mask, width, COMBINE_A_OVER); +} + +static void +combine_conjoint_over_reverse_ca (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + combine_conjoint_general_ca (dest, src, mask, width, COMBINE_B_OVER); +} + +static void +combine_conjoint_in_ca (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + combine_conjoint_general_ca (dest, src, mask, width, COMBINE_A_IN); +} + +static void +combine_conjoint_in_reverse_ca (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + combine_conjoint_general_ca (dest, src, mask, width, COMBINE_B_IN); +} + +static void +combine_conjoint_out_ca (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + combine_conjoint_general_ca (dest, src, mask, width, COMBINE_A_OUT); +} + +static void +combine_conjoint_out_reverse_ca (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + combine_conjoint_general_ca (dest, src, mask, width, COMBINE_B_OUT); +} + +static void +combine_conjoint_atop_ca (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + combine_conjoint_general_ca (dest, src, mask, width, COMBINE_A_ATOP); +} + +static void +combine_conjoint_atop_reverse_ca (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + combine_conjoint_general_ca (dest, src, mask, width, COMBINE_B_ATOP); +} + +static void +combine_conjoint_xor_ca (pixman_implementation_t *imp, + pixman_op_t op, + comp4_t * dest, + const comp4_t * src, + const comp4_t * mask, + int width) +{ + combine_conjoint_general_ca (dest, src, mask, width, COMBINE_XOR); +} + +void +_pixman_setup_combiner_functions_width (pixman_implementation_t *imp) +{ + /* Unified alpha */ + imp->combine_width[PIXMAN_OP_CLEAR] = combine_clear; + imp->combine_width[PIXMAN_OP_SRC] = combine_src_u; + imp->combine_width[PIXMAN_OP_DST] = combine_dst; + imp->combine_width[PIXMAN_OP_OVER] = combine_over_u; + imp->combine_width[PIXMAN_OP_OVER_REVERSE] = combine_over_reverse_u; + imp->combine_width[PIXMAN_OP_IN] = combine_in_u; + imp->combine_width[PIXMAN_OP_IN_REVERSE] = combine_in_reverse_u; + imp->combine_width[PIXMAN_OP_OUT] = combine_out_u; + imp->combine_width[PIXMAN_OP_OUT_REVERSE] = combine_out_reverse_u; + imp->combine_width[PIXMAN_OP_ATOP] = combine_atop_u; + imp->combine_width[PIXMAN_OP_ATOP_REVERSE] = combine_atop_reverse_u; + imp->combine_width[PIXMAN_OP_XOR] = combine_xor_u; + imp->combine_width[PIXMAN_OP_ADD] = combine_add_u; + imp->combine_width[PIXMAN_OP_SATURATE] = combine_saturate_u; + + /* Disjoint, unified */ + imp->combine_width[PIXMAN_OP_DISJOINT_CLEAR] = combine_clear; + imp->combine_width[PIXMAN_OP_DISJOINT_SRC] = combine_src_u; + imp->combine_width[PIXMAN_OP_DISJOINT_DST] = combine_dst; + imp->combine_width[PIXMAN_OP_DISJOINT_OVER] = combine_disjoint_over_u; + imp->combine_width[PIXMAN_OP_DISJOINT_OVER_REVERSE] = combine_saturate_u; + imp->combine_width[PIXMAN_OP_DISJOINT_IN] = combine_disjoint_in_u; + imp->combine_width[PIXMAN_OP_DISJOINT_IN_REVERSE] = combine_disjoint_in_reverse_u; + imp->combine_width[PIXMAN_OP_DISJOINT_OUT] = combine_disjoint_out_u; + imp->combine_width[PIXMAN_OP_DISJOINT_OUT_REVERSE] = combine_disjoint_out_reverse_u; + imp->combine_width[PIXMAN_OP_DISJOINT_ATOP] = combine_disjoint_atop_u; + imp->combine_width[PIXMAN_OP_DISJOINT_ATOP_REVERSE] = combine_disjoint_atop_reverse_u; + imp->combine_width[PIXMAN_OP_DISJOINT_XOR] = combine_disjoint_xor_u; + + /* Conjoint, unified */ + imp->combine_width[PIXMAN_OP_CONJOINT_CLEAR] = combine_clear; + imp->combine_width[PIXMAN_OP_CONJOINT_SRC] = combine_src_u; + imp->combine_width[PIXMAN_OP_CONJOINT_DST] = combine_dst; + imp->combine_width[PIXMAN_OP_CONJOINT_OVER] = combine_conjoint_over_u; + imp->combine_width[PIXMAN_OP_CONJOINT_OVER_REVERSE] = combine_conjoint_over_reverse_u; + imp->combine_width[PIXMAN_OP_CONJOINT_IN] = combine_conjoint_in_u; + imp->combine_width[PIXMAN_OP_CONJOINT_IN_REVERSE] = combine_conjoint_in_reverse_u; + imp->combine_width[PIXMAN_OP_CONJOINT_OUT] = combine_conjoint_out_u; + imp->combine_width[PIXMAN_OP_CONJOINT_OUT_REVERSE] = combine_conjoint_out_reverse_u; + imp->combine_width[PIXMAN_OP_CONJOINT_ATOP] = combine_conjoint_atop_u; + imp->combine_width[PIXMAN_OP_CONJOINT_ATOP_REVERSE] = combine_conjoint_atop_reverse_u; + imp->combine_width[PIXMAN_OP_CONJOINT_XOR] = combine_conjoint_xor_u; + + imp->combine_width[PIXMAN_OP_MULTIPLY] = combine_multiply_u; + imp->combine_width[PIXMAN_OP_SCREEN] = combine_screen_u; + imp->combine_width[PIXMAN_OP_OVERLAY] = combine_overlay_u; + imp->combine_width[PIXMAN_OP_DARKEN] = combine_darken_u; + imp->combine_width[PIXMAN_OP_LIGHTEN] = combine_lighten_u; + imp->combine_width[PIXMAN_OP_COLOR_DODGE] = combine_color_dodge_u; + imp->combine_width[PIXMAN_OP_COLOR_BURN] = combine_color_burn_u; + imp->combine_width[PIXMAN_OP_HARD_LIGHT] = combine_hard_light_u; + imp->combine_width[PIXMAN_OP_SOFT_LIGHT] = combine_soft_light_u; + imp->combine_width[PIXMAN_OP_DIFFERENCE] = combine_difference_u; + imp->combine_width[PIXMAN_OP_EXCLUSION] = combine_exclusion_u; + imp->combine_width[PIXMAN_OP_HSL_HUE] = combine_hsl_hue_u; + imp->combine_width[PIXMAN_OP_HSL_SATURATION] = combine_hsl_saturation_u; + imp->combine_width[PIXMAN_OP_HSL_COLOR] = combine_hsl_color_u; + imp->combine_width[PIXMAN_OP_HSL_LUMINOSITY] = combine_hsl_luminosity_u; + + /* Component alpha combiners */ + imp->combine_width_ca[PIXMAN_OP_CLEAR] = combine_clear_ca; + imp->combine_width_ca[PIXMAN_OP_SRC] = combine_src_ca; + /* dest */ + imp->combine_width_ca[PIXMAN_OP_OVER] = combine_over_ca; + imp->combine_width_ca[PIXMAN_OP_OVER_REVERSE] = combine_over_reverse_ca; + imp->combine_width_ca[PIXMAN_OP_IN] = combine_in_ca; + imp->combine_width_ca[PIXMAN_OP_IN_REVERSE] = combine_in_reverse_ca; + imp->combine_width_ca[PIXMAN_OP_OUT] = combine_out_ca; + imp->combine_width_ca[PIXMAN_OP_OUT_REVERSE] = combine_out_reverse_ca; + imp->combine_width_ca[PIXMAN_OP_ATOP] = combine_atop_ca; + imp->combine_width_ca[PIXMAN_OP_ATOP_REVERSE] = combine_atop_reverse_ca; + imp->combine_width_ca[PIXMAN_OP_XOR] = combine_xor_ca; + imp->combine_width_ca[PIXMAN_OP_ADD] = combine_add_ca; + imp->combine_width_ca[PIXMAN_OP_SATURATE] = combine_saturate_ca; + + /* Disjoint CA */ + imp->combine_width_ca[PIXMAN_OP_DISJOINT_CLEAR] = combine_clear_ca; + imp->combine_width_ca[PIXMAN_OP_DISJOINT_SRC] = combine_src_ca; + imp->combine_width_ca[PIXMAN_OP_DISJOINT_DST] = combine_dst; + imp->combine_width_ca[PIXMAN_OP_DISJOINT_OVER] = combine_disjoint_over_ca; + imp->combine_width_ca[PIXMAN_OP_DISJOINT_OVER_REVERSE] = combine_saturate_ca; + imp->combine_width_ca[PIXMAN_OP_DISJOINT_IN] = combine_disjoint_in_ca; + imp->combine_width_ca[PIXMAN_OP_DISJOINT_IN_REVERSE] = combine_disjoint_in_reverse_ca; + imp->combine_width_ca[PIXMAN_OP_DISJOINT_OUT] = combine_disjoint_out_ca; + imp->combine_width_ca[PIXMAN_OP_DISJOINT_OUT_REVERSE] = combine_disjoint_out_reverse_ca; + imp->combine_width_ca[PIXMAN_OP_DISJOINT_ATOP] = combine_disjoint_atop_ca; + imp->combine_width_ca[PIXMAN_OP_DISJOINT_ATOP_REVERSE] = combine_disjoint_atop_reverse_ca; + imp->combine_width_ca[PIXMAN_OP_DISJOINT_XOR] = combine_disjoint_xor_ca; + + /* Conjoint CA */ + imp->combine_width_ca[PIXMAN_OP_CONJOINT_CLEAR] = combine_clear_ca; + imp->combine_width_ca[PIXMAN_OP_CONJOINT_SRC] = combine_src_ca; + imp->combine_width_ca[PIXMAN_OP_CONJOINT_DST] = combine_dst; + imp->combine_width_ca[PIXMAN_OP_CONJOINT_OVER] = combine_conjoint_over_ca; + imp->combine_width_ca[PIXMAN_OP_CONJOINT_OVER_REVERSE] = combine_conjoint_over_reverse_ca; + imp->combine_width_ca[PIXMAN_OP_CONJOINT_IN] = combine_conjoint_in_ca; + imp->combine_width_ca[PIXMAN_OP_CONJOINT_IN_REVERSE] = combine_conjoint_in_reverse_ca; + imp->combine_width_ca[PIXMAN_OP_CONJOINT_OUT] = combine_conjoint_out_ca; + imp->combine_width_ca[PIXMAN_OP_CONJOINT_OUT_REVERSE] = combine_conjoint_out_reverse_ca; + imp->combine_width_ca[PIXMAN_OP_CONJOINT_ATOP] = combine_conjoint_atop_ca; + imp->combine_width_ca[PIXMAN_OP_CONJOINT_ATOP_REVERSE] = combine_conjoint_atop_reverse_ca; + imp->combine_width_ca[PIXMAN_OP_CONJOINT_XOR] = combine_conjoint_xor_ca; + + imp->combine_width_ca[PIXMAN_OP_MULTIPLY] = combine_multiply_ca; + imp->combine_width_ca[PIXMAN_OP_SCREEN] = combine_screen_ca; + imp->combine_width_ca[PIXMAN_OP_OVERLAY] = combine_overlay_ca; + imp->combine_width_ca[PIXMAN_OP_DARKEN] = combine_darken_ca; + imp->combine_width_ca[PIXMAN_OP_LIGHTEN] = combine_lighten_ca; + imp->combine_width_ca[PIXMAN_OP_COLOR_DODGE] = combine_color_dodge_ca; + imp->combine_width_ca[PIXMAN_OP_COLOR_BURN] = combine_color_burn_ca; + imp->combine_width_ca[PIXMAN_OP_HARD_LIGHT] = combine_hard_light_ca; + imp->combine_width_ca[PIXMAN_OP_SOFT_LIGHT] = combine_soft_light_ca; + imp->combine_width_ca[PIXMAN_OP_DIFFERENCE] = combine_difference_ca; + imp->combine_width_ca[PIXMAN_OP_EXCLUSION] = combine_exclusion_ca; + + /* It is not clear that these make sense, so make them noops for now */ + imp->combine_width_ca[PIXMAN_OP_HSL_HUE] = combine_dst; + imp->combine_width_ca[PIXMAN_OP_HSL_SATURATION] = combine_dst; + imp->combine_width_ca[PIXMAN_OP_HSL_COLOR] = combine_dst; + imp->combine_width_ca[PIXMAN_OP_HSL_LUMINOSITY] = combine_dst; +} + diff --git a/pixman/test/Makefile.am b/pixman/test/Makefile.am index f2fbf4ce2..19c4f8006 100644 --- a/pixman/test/Makefile.am +++ b/pixman/test/Makefile.am @@ -1,113 +1,117 @@ -AM_CFLAGS = @OPENMP_CFLAGS@ -AM_LDFLAGS = @OPENMP_CFLAGS@ - -TEST_LDADD = $(top_builddir)/pixman/libpixman-1.la -INCLUDES = -I$(top_srcdir)/pixman -I$(top_builddir)/pixman - -TESTPROGRAMS = \ - a1-trap-test \ - region-test \ - region-translate-test \ - fetch-test \ - oob-test \ - trap-crasher \ - alpha-loop \ - scaling-crash-test \ - gradient-crash-test \ - alphamap \ - stress-test \ - blitters-test \ - scaling-test \ - affine-test \ - composite - -a1_trap_test_LDADD = $(TEST_LDADD) -fetch_test_LDADD = $(TEST_LDADD) -trap_crasher_LDADD = $(TEST_LDADD) -oob_test_LDADD = $(TEST_LDADD) -scaling_crash_test_LDADD = $(TEST_LDADD) -region_translate_test_LDADD = $(TEST_LDADD) - -region_test_LDADD = $(TEST_LDADD) -region_test_SOURCES = region-test.c utils.c utils.h - -blitters_test_LDADD = $(TEST_LDADD) -blitters_test_SOURCES = blitters-test.c utils.c utils.h - -scaling_test_LDADD = $(TEST_LDADD) -scaling_test_SOURCES = scaling-test.c utils.c utils.h - -affine_test_LDADD = $(TEST_LDADD) -affine_test_SOURCES = affine-test.c utils.c utils.h - -alphamap_LDADD = $(TEST_LDADD) -alphamap_SOURCES = alphamap.c utils.c utils.h - -alpha_loop_LDADD = $(TEST_LDADD) -alpha_loop_SOURCES = alpha-loop.c utils.c utils.h - -composite_LDADD = $(TEST_LDADD) -composite_SOURCES = composite.c utils.c utils.h - -gradient_crash_test_LDADD = $(TEST_LDADD) -gradient_crash_test_SOURCES = gradient-crash-test.c utils.c utils.h - -stress_test_LDADD = $(TEST_LDADD) -stress_test_SOURCES = stress-test.c utils.c utils.h - -# GTK using test programs - -if HAVE_GTK - -GTK_LDADD = $(TEST_LDADD) $(GTK_LIBS) -GTK_UTILS = gtk-utils.c gtk-utils.h - -TESTPROGRAMS_GTK = \ - clip-test \ - clip-in \ - composite-test \ - gradient-test \ - alpha-test \ - screen-test \ - convolution-test \ - trap-test - -INCLUDES += $(GTK_CFLAGS) - -gradient_test_LDADD = $(GTK_LDADD) -gradient_test_SOURCES = gradient-test.c $(GTK_UTILS) - -alpha_test_LDADD = $(GTK_LDADD) -alpha_test_SOURCES = alpha-test.c $(GTK_UTILS) - -composite_test_LDADD = $(GTK_LDADD) -composite_test_SOURCES = composite-test.c $(GTK_UTILS) - -clip_test_LDADD = $(GTK_LDADD) -clip_test_SOURCES = clip-test.c $(GTK_UTILS) - -clip_in_LDADD = $(GTK_LDADD) -clip_in_SOURCES = clip-in.c $(GTK_UTILS) - -trap_test_LDADD = $(GTK_LDADD) -trap_test_SOURCES = trap-test.c $(GTK_UTILS) - -screen_test_LDADD = $(GTK_LDADD) -screen_test_SOURCES = screen-test.c $(GTK_UTILS) - -convolution_test_LDADD = $(GTK_LDADD) -convolution_test_SOURCES = convolution-test.c $(GTK_UTILS) - -endif - -# Benchmarks - -BENCHMARKS = \ - lowlevel-blt-bench - -lowlevel_blt_bench_SOURCES = lowlevel-blt-bench.c utils.c utils.h -lowlevel_blt_bench_LDADD = $(TEST_LDADD) - -noinst_PROGRAMS = $(TESTPROGRAMS) $(TESTPROGRAMS_GTK) $(BENCHMARKS) - -TESTS = $(TESTPROGRAMS) +AM_CFLAGS = @OPENMP_CFLAGS@ +AM_LDFLAGS = @OPENMP_CFLAGS@ + +TEST_LDADD = $(top_builddir)/pixman/libpixman-1.la -lm +INCLUDES = -I$(top_srcdir)/pixman -I$(top_builddir)/pixman + +TESTPROGRAMS = \ + a1-trap-test \ + pdf-op-test \ + region-test \ + region-translate-test \ + fetch-test \ + oob-test \ + trap-crasher \ + alpha-loop \ + scaling-crash-test \ + gradient-crash-test \ + alphamap \ + stress-test \ + blitters-test \ + scaling-test \ + affine-test \ + composite + +a1_trap_test_LDADD = $(TEST_LDADD) +fetch_test_LDADD = $(TEST_LDADD) +trap_crasher_LDADD = $(TEST_LDADD) +oob_test_LDADD = $(TEST_LDADD) +scaling_crash_test_LDADD = $(TEST_LDADD) +region_translate_test_LDADD = $(TEST_LDADD) + +pdf_op_test_LDADD = $(TEST_LDADD) +pdf_op_test_SOURCES = pdf-op-test.c utils.c utils.h + +region_test_LDADD = $(TEST_LDADD) +region_test_SOURCES = region-test.c utils.c utils.h + +blitters_test_LDADD = $(TEST_LDADD) +blitters_test_SOURCES = blitters-test.c utils.c utils.h + +scaling_test_LDADD = $(TEST_LDADD) +scaling_test_SOURCES = scaling-test.c utils.c utils.h + +affine_test_LDADD = $(TEST_LDADD) +affine_test_SOURCES = affine-test.c utils.c utils.h + +alphamap_LDADD = $(TEST_LDADD) +alphamap_SOURCES = alphamap.c utils.c utils.h + +alpha_loop_LDADD = $(TEST_LDADD) +alpha_loop_SOURCES = alpha-loop.c utils.c utils.h + +composite_LDADD = $(TEST_LDADD) +composite_SOURCES = composite.c utils.c utils.h + +gradient_crash_test_LDADD = $(TEST_LDADD) +gradient_crash_test_SOURCES = gradient-crash-test.c utils.c utils.h + +stress_test_LDADD = $(TEST_LDADD) +stress_test_SOURCES = stress-test.c utils.c utils.h + +# GTK using test programs + +if HAVE_GTK + +GTK_LDADD = $(TEST_LDADD) $(GTK_LIBS) +GTK_UTILS = gtk-utils.c gtk-utils.h + +TESTPROGRAMS_GTK = \ + clip-test \ + clip-in \ + composite-test \ + gradient-test \ + alpha-test \ + screen-test \ + convolution-test \ + trap-test + +INCLUDES += $(GTK_CFLAGS) + +gradient_test_LDADD = $(GTK_LDADD) +gradient_test_SOURCES = gradient-test.c $(GTK_UTILS) + +alpha_test_LDADD = $(GTK_LDADD) +alpha_test_SOURCES = alpha-test.c $(GTK_UTILS) + +composite_test_LDADD = $(GTK_LDADD) +composite_test_SOURCES = composite-test.c $(GTK_UTILS) + +clip_test_LDADD = $(GTK_LDADD) +clip_test_SOURCES = clip-test.c $(GTK_UTILS) + +clip_in_LDADD = $(GTK_LDADD) +clip_in_SOURCES = clip-in.c $(GTK_UTILS) + +trap_test_LDADD = $(GTK_LDADD) +trap_test_SOURCES = trap-test.c $(GTK_UTILS) + +screen_test_LDADD = $(GTK_LDADD) +screen_test_SOURCES = screen-test.c $(GTK_UTILS) + +convolution_test_LDADD = $(GTK_LDADD) +convolution_test_SOURCES = convolution-test.c $(GTK_UTILS) + +endif + +# Benchmarks + +BENCHMARKS = \ + lowlevel-blt-bench + +lowlevel_blt_bench_SOURCES = lowlevel-blt-bench.c utils.c utils.h +lowlevel_blt_bench_LDADD = $(TEST_LDADD) + +noinst_PROGRAMS = $(TESTPROGRAMS) $(TESTPROGRAMS_GTK) $(BENCHMARKS) + +TESTS = $(TESTPROGRAMS) diff --git a/pixman/test/pdf-op-test.c b/pixman/test/pdf-op-test.c new file mode 100644 index 000000000..dc7a4fd0b --- /dev/null +++ b/pixman/test/pdf-op-test.c @@ -0,0 +1,84 @@ +#include +#include +#include "utils.h" + +static const pixman_op_t pdf_ops[] = +{ + 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, + PIXMAN_OP_HSL_HUE, + PIXMAN_OP_HSL_SATURATION, + PIXMAN_OP_HSL_COLOR, + PIXMAN_OP_HSL_LUMINOSITY +}; + +static const uint32_t pixels[] = +{ + 0x00808080, + 0x80123456, + 0x00000000, + 0xffffffff, + 0x00ffffff, + 0x80808080, + 0x00123456, +}; + +int +main () +{ + int o, s, m, d; + + enable_fp_exceptions(); + + for (o = 0; o < ARRAY_LENGTH (pdf_ops); ++o) + { + pixman_op_t op = pdf_ops[o]; + + for (s = 0; s < ARRAY_LENGTH (pixels); ++s) + { + pixman_image_t *src; + + src = pixman_image_create_bits ( + PIXMAN_a8r8g8b8, 1, 1, (uint32_t *)&(pixels[s]), 4); + + for (m = -1; m < ARRAY_LENGTH (pixels); ++m) + { + pixman_image_t *msk = NULL; + if (m >= 0) + { + msk = pixman_image_create_bits ( + PIXMAN_a8r8g8b8, 1, 1, (uint32_t *)&(pixels[m]), 4); + } + + for (d = 0; d < ARRAY_LENGTH (pixels); ++d) + { + pixman_image_t *dst; + uint32_t dp = pixels[d]; + + dst = pixman_image_create_bits ( + PIXMAN_a8r8g8b8, 1, 1, &dp, 4); + + pixman_image_composite (op, src, msk, dst, + 0, 0, 0, 0, 0, 0, 1, 1); + + pixman_image_unref (dst); + } + if (msk) + pixman_image_unref (msk); + } + + pixman_image_unref (src); + } + } + + return 0; +} -- cgit v1.2.3