diff options
Diffstat (limited to 'pixman/pixman/pixman-combine.c.template')
| -rw-r--r-- | pixman/pixman/pixman-combine.c.template | 4921 |
1 files changed, 2460 insertions, 2461 deletions
diff --git a/pixman/pixman/pixman-combine.c.template b/pixman/pixman/pixman-combine.c.template index f5dd8e120..8c1dd647d 100644 --- a/pixman/pixman/pixman-combine.c.template +++ b/pixman/pixman/pixman-combine.c.template @@ -1,2461 +1,2460 @@ -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - -#include <math.h> -#include <string.h> - -#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; -} - +#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <math.h>
+#include <string.h>
+
+#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
+ * 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 the 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)
+ * = 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;
+}
+
|