diff options
Diffstat (limited to 'pixman/pixman/pixman-combine.c.template')
-rw-r--r-- | pixman/pixman/pixman-combine.c.template | 4920 |
1 files changed, 2460 insertions, 2460 deletions
diff --git a/pixman/pixman/pixman-combine.c.template b/pixman/pixman/pixman-combine.c.template index 8c1dd647d..806a18498 100644 --- a/pixman/pixman/pixman-combine.c.template +++ b/pixman/pixman/pixman-combine.c.template @@ -1,2460 +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
- * 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;
-}
-
+#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; +} + |