1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/cairo/libpixman/src/pixman-combine.c.template Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,2461 @@
1.4 +#ifdef HAVE_CONFIG_H
1.5 +#include <config.h>
1.6 +#endif
1.7 +
1.8 +#include <math.h>
1.9 +#include <string.h>
1.10 +
1.11 +#include "pixman-private.h"
1.12 +
1.13 +#include "pixman-combine.h"
1.14 +
1.15 +/*** per channel helper functions ***/
1.16 +
1.17 +static void
1.18 +combine_mask_ca (comp4_t *src, comp4_t *mask)
1.19 +{
1.20 + comp4_t a = *mask;
1.21 +
1.22 + comp4_t x;
1.23 + comp2_t xa;
1.24 +
1.25 + if (!a)
1.26 + {
1.27 + *(src) = 0;
1.28 + return;
1.29 + }
1.30 +
1.31 + x = *(src);
1.32 + if (a == ~0)
1.33 + {
1.34 + x = x >> A_SHIFT;
1.35 + x |= x << G_SHIFT;
1.36 + x |= x << R_SHIFT;
1.37 + *(mask) = x;
1.38 + return;
1.39 + }
1.40 +
1.41 + xa = x >> A_SHIFT;
1.42 + UNcx4_MUL_UNcx4 (x, a);
1.43 + *(src) = x;
1.44 +
1.45 + UNcx4_MUL_UNc (a, xa);
1.46 + *(mask) = a;
1.47 +}
1.48 +
1.49 +static void
1.50 +combine_mask_value_ca (comp4_t *src, const comp4_t *mask)
1.51 +{
1.52 + comp4_t a = *mask;
1.53 + comp4_t x;
1.54 +
1.55 + if (!a)
1.56 + {
1.57 + *(src) = 0;
1.58 + return;
1.59 + }
1.60 +
1.61 + if (a == ~0)
1.62 + return;
1.63 +
1.64 + x = *(src);
1.65 + UNcx4_MUL_UNcx4 (x, a);
1.66 + *(src) = x;
1.67 +}
1.68 +
1.69 +static void
1.70 +combine_mask_alpha_ca (const comp4_t *src, comp4_t *mask)
1.71 +{
1.72 + comp4_t a = *(mask);
1.73 + comp4_t x;
1.74 +
1.75 + if (!a)
1.76 + return;
1.77 +
1.78 + x = *(src) >> A_SHIFT;
1.79 + if (x == MASK)
1.80 + return;
1.81 +
1.82 + if (a == ~0)
1.83 + {
1.84 + x |= x << G_SHIFT;
1.85 + x |= x << R_SHIFT;
1.86 + *(mask) = x;
1.87 + return;
1.88 + }
1.89 +
1.90 + UNcx4_MUL_UNc (a, x);
1.91 + *(mask) = a;
1.92 +}
1.93 +
1.94 +/*
1.95 + * There are two ways of handling alpha -- either as a single unified value or
1.96 + * a separate value for each component, hence each macro must have two
1.97 + * versions. The unified alpha version has a 'U' at the end of the name,
1.98 + * the component version has a 'C'. Similarly, functions which deal with
1.99 + * this difference will have two versions using the same convention.
1.100 + */
1.101 +
1.102 +/*
1.103 + * All of the composing functions
1.104 + */
1.105 +
1.106 +static force_inline comp4_t
1.107 +combine_mask (const comp4_t *src, const comp4_t *mask, int i)
1.108 +{
1.109 + comp4_t s, m;
1.110 +
1.111 + if (mask)
1.112 + {
1.113 + m = *(mask + i) >> A_SHIFT;
1.114 +
1.115 + if (!m)
1.116 + return 0;
1.117 + }
1.118 +
1.119 + s = *(src + i);
1.120 +
1.121 + if (mask)
1.122 + UNcx4_MUL_UNc (s, m);
1.123 +
1.124 + return s;
1.125 +}
1.126 +
1.127 +static void
1.128 +combine_clear (pixman_implementation_t *imp,
1.129 + pixman_op_t op,
1.130 + comp4_t * dest,
1.131 + const comp4_t * src,
1.132 + const comp4_t * mask,
1.133 + int width)
1.134 +{
1.135 + memset (dest, 0, width * sizeof(comp4_t));
1.136 +}
1.137 +
1.138 +static void
1.139 +combine_dst (pixman_implementation_t *imp,
1.140 + pixman_op_t op,
1.141 + comp4_t * dest,
1.142 + const comp4_t * src,
1.143 + const comp4_t * mask,
1.144 + int width)
1.145 +{
1.146 + return;
1.147 +}
1.148 +
1.149 +static void
1.150 +combine_src_u (pixman_implementation_t *imp,
1.151 + pixman_op_t op,
1.152 + comp4_t * dest,
1.153 + const comp4_t * src,
1.154 + const comp4_t * mask,
1.155 + int width)
1.156 +{
1.157 + int i;
1.158 +
1.159 + if (!mask)
1.160 + memcpy (dest, src, width * sizeof (comp4_t));
1.161 + else
1.162 + {
1.163 + for (i = 0; i < width; ++i)
1.164 + {
1.165 + comp4_t s = combine_mask (src, mask, i);
1.166 +
1.167 + *(dest + i) = s;
1.168 + }
1.169 + }
1.170 +}
1.171 +
1.172 +/* if the Src is opaque, call combine_src_u */
1.173 +static void
1.174 +combine_over_u (pixman_implementation_t *imp,
1.175 + pixman_op_t op,
1.176 + comp4_t * dest,
1.177 + const comp4_t * src,
1.178 + const comp4_t * mask,
1.179 + int width)
1.180 +{
1.181 + int i;
1.182 +
1.183 + for (i = 0; i < width; ++i)
1.184 + {
1.185 + comp4_t s = combine_mask (src, mask, i);
1.186 + comp4_t d = *(dest + i);
1.187 + comp4_t ia = ALPHA_c (~s);
1.188 +
1.189 + UNcx4_MUL_UNc_ADD_UNcx4 (d, ia, s);
1.190 + *(dest + i) = d;
1.191 + }
1.192 +}
1.193 +
1.194 +/* if the Dst is opaque, this is a noop */
1.195 +static void
1.196 +combine_over_reverse_u (pixman_implementation_t *imp,
1.197 + pixman_op_t op,
1.198 + comp4_t * dest,
1.199 + const comp4_t * src,
1.200 + const comp4_t * mask,
1.201 + int width)
1.202 +{
1.203 + int i;
1.204 +
1.205 + for (i = 0; i < width; ++i)
1.206 + {
1.207 + comp4_t s = combine_mask (src, mask, i);
1.208 + comp4_t d = *(dest + i);
1.209 + comp4_t ia = ALPHA_c (~*(dest + i));
1.210 + UNcx4_MUL_UNc_ADD_UNcx4 (s, ia, d);
1.211 + *(dest + i) = s;
1.212 + }
1.213 +}
1.214 +
1.215 +/* if the Dst is opaque, call combine_src_u */
1.216 +static void
1.217 +combine_in_u (pixman_implementation_t *imp,
1.218 + pixman_op_t op,
1.219 + comp4_t * dest,
1.220 + const comp4_t * src,
1.221 + const comp4_t * mask,
1.222 + int width)
1.223 +{
1.224 + int i;
1.225 +
1.226 + for (i = 0; i < width; ++i)
1.227 + {
1.228 + comp4_t s = combine_mask (src, mask, i);
1.229 + comp4_t a = ALPHA_c (*(dest + i));
1.230 + UNcx4_MUL_UNc (s, a);
1.231 + *(dest + i) = s;
1.232 + }
1.233 +}
1.234 +
1.235 +/* if the Src is opaque, this is a noop */
1.236 +static void
1.237 +combine_in_reverse_u (pixman_implementation_t *imp,
1.238 + pixman_op_t op,
1.239 + comp4_t * dest,
1.240 + const comp4_t * src,
1.241 + const comp4_t * mask,
1.242 + int width)
1.243 +{
1.244 + int i;
1.245 +
1.246 + for (i = 0; i < width; ++i)
1.247 + {
1.248 + comp4_t s = combine_mask (src, mask, i);
1.249 + comp4_t d = *(dest + i);
1.250 + comp4_t a = ALPHA_c (s);
1.251 + UNcx4_MUL_UNc (d, a);
1.252 + *(dest + i) = d;
1.253 + }
1.254 +}
1.255 +
1.256 +/* if the Dst is opaque, call combine_clear */
1.257 +static void
1.258 +combine_out_u (pixman_implementation_t *imp,
1.259 + pixman_op_t op,
1.260 + comp4_t * dest,
1.261 + const comp4_t * src,
1.262 + const comp4_t * mask,
1.263 + int width)
1.264 +{
1.265 + int i;
1.266 +
1.267 + for (i = 0; i < width; ++i)
1.268 + {
1.269 + comp4_t s = combine_mask (src, mask, i);
1.270 + comp4_t a = ALPHA_c (~*(dest + i));
1.271 + UNcx4_MUL_UNc (s, a);
1.272 + *(dest + i) = s;
1.273 + }
1.274 +}
1.275 +
1.276 +/* if the Src is opaque, call combine_clear */
1.277 +static void
1.278 +combine_out_reverse_u (pixman_implementation_t *imp,
1.279 + pixman_op_t op,
1.280 + comp4_t * dest,
1.281 + const comp4_t * src,
1.282 + const comp4_t * mask,
1.283 + int width)
1.284 +{
1.285 + int i;
1.286 +
1.287 + for (i = 0; i < width; ++i)
1.288 + {
1.289 + comp4_t s = combine_mask (src, mask, i);
1.290 + comp4_t d = *(dest + i);
1.291 + comp4_t a = ALPHA_c (~s);
1.292 + UNcx4_MUL_UNc (d, a);
1.293 + *(dest + i) = d;
1.294 + }
1.295 +}
1.296 +
1.297 +/* if the Src is opaque, call combine_in_u */
1.298 +/* if the Dst is opaque, call combine_over_u */
1.299 +/* if both the Src and Dst are opaque, call combine_src_u */
1.300 +static void
1.301 +combine_atop_u (pixman_implementation_t *imp,
1.302 + pixman_op_t op,
1.303 + comp4_t * dest,
1.304 + const comp4_t * src,
1.305 + const comp4_t * mask,
1.306 + int width)
1.307 +{
1.308 + int i;
1.309 +
1.310 + for (i = 0; i < width; ++i)
1.311 + {
1.312 + comp4_t s = combine_mask (src, mask, i);
1.313 + comp4_t d = *(dest + i);
1.314 + comp4_t dest_a = ALPHA_c (d);
1.315 + comp4_t src_ia = ALPHA_c (~s);
1.316 +
1.317 + UNcx4_MUL_UNc_ADD_UNcx4_MUL_UNc (s, dest_a, d, src_ia);
1.318 + *(dest + i) = s;
1.319 + }
1.320 +}
1.321 +
1.322 +/* if the Src is opaque, call combine_over_reverse_u */
1.323 +/* if the Dst is opaque, call combine_in_reverse_u */
1.324 +/* if both the Src and Dst are opaque, call combine_dst_u */
1.325 +static void
1.326 +combine_atop_reverse_u (pixman_implementation_t *imp,
1.327 + pixman_op_t op,
1.328 + comp4_t * dest,
1.329 + const comp4_t * src,
1.330 + const comp4_t * mask,
1.331 + int width)
1.332 +{
1.333 + int i;
1.334 +
1.335 + for (i = 0; i < width; ++i)
1.336 + {
1.337 + comp4_t s = combine_mask (src, mask, i);
1.338 + comp4_t d = *(dest + i);
1.339 + comp4_t src_a = ALPHA_c (s);
1.340 + comp4_t dest_ia = ALPHA_c (~d);
1.341 +
1.342 + UNcx4_MUL_UNc_ADD_UNcx4_MUL_UNc (s, dest_ia, d, src_a);
1.343 + *(dest + i) = s;
1.344 + }
1.345 +}
1.346 +
1.347 +/* if the Src is opaque, call combine_over_u */
1.348 +/* if the Dst is opaque, call combine_over_reverse_u */
1.349 +/* if both the Src and Dst are opaque, call combine_clear */
1.350 +static void
1.351 +combine_xor_u (pixman_implementation_t *imp,
1.352 + pixman_op_t op,
1.353 + comp4_t * dest,
1.354 + const comp4_t * src,
1.355 + const comp4_t * mask,
1.356 + int width)
1.357 +{
1.358 + int i;
1.359 +
1.360 + for (i = 0; i < width; ++i)
1.361 + {
1.362 + comp4_t s = combine_mask (src, mask, i);
1.363 + comp4_t d = *(dest + i);
1.364 + comp4_t src_ia = ALPHA_c (~s);
1.365 + comp4_t dest_ia = ALPHA_c (~d);
1.366 +
1.367 + UNcx4_MUL_UNc_ADD_UNcx4_MUL_UNc (s, dest_ia, d, src_ia);
1.368 + *(dest + i) = s;
1.369 + }
1.370 +}
1.371 +
1.372 +static void
1.373 +combine_add_u (pixman_implementation_t *imp,
1.374 + pixman_op_t op,
1.375 + comp4_t * dest,
1.376 + const comp4_t * src,
1.377 + const comp4_t * mask,
1.378 + int width)
1.379 +{
1.380 + int i;
1.381 +
1.382 + for (i = 0; i < width; ++i)
1.383 + {
1.384 + comp4_t s = combine_mask (src, mask, i);
1.385 + comp4_t d = *(dest + i);
1.386 + UNcx4_ADD_UNcx4 (d, s);
1.387 + *(dest + i) = d;
1.388 + }
1.389 +}
1.390 +
1.391 +/* if the Src is opaque, call combine_add_u */
1.392 +/* if the Dst is opaque, call combine_add_u */
1.393 +/* if both the Src and Dst are opaque, call combine_add_u */
1.394 +static void
1.395 +combine_saturate_u (pixman_implementation_t *imp,
1.396 + pixman_op_t op,
1.397 + comp4_t * dest,
1.398 + const comp4_t * src,
1.399 + const comp4_t * mask,
1.400 + int width)
1.401 +{
1.402 + int i;
1.403 +
1.404 + for (i = 0; i < width; ++i)
1.405 + {
1.406 + comp4_t s = combine_mask (src, mask, i);
1.407 + comp4_t d = *(dest + i);
1.408 + comp2_t sa, da;
1.409 +
1.410 + sa = s >> A_SHIFT;
1.411 + da = ~d >> A_SHIFT;
1.412 + if (sa > da)
1.413 + {
1.414 + sa = DIV_UNc (da, sa);
1.415 + UNcx4_MUL_UNc (s, sa);
1.416 + }
1.417 + ;
1.418 + UNcx4_ADD_UNcx4 (d, s);
1.419 + *(dest + i) = d;
1.420 + }
1.421 +}
1.422 +
1.423 +/*
1.424 + * PDF blend modes:
1.425 + * The following blend modes have been taken from the PDF ISO 32000
1.426 + * specification, which at this point in time is available from
1.427 + * http://www.adobe.com/devnet/acrobat/pdfs/PDF32000_2008.pdf
1.428 + * The relevant chapters are 11.3.5 and 11.3.6.
1.429 + * The formula for computing the final pixel color given in 11.3.6 is:
1.430 + * αr × Cr = (1 – αs) × αb × Cb + (1 – αb) × αs × Cs + αb × αs × B(Cb, Cs)
1.431 + * with B() being the blend function.
1.432 + * Note that OVER is a special case of this operation, using B(Cb, Cs) = Cs
1.433 + *
1.434 + * These blend modes should match the SVG filter draft specification, as
1.435 + * it has been designed to mirror ISO 32000. Note that at the current point
1.436 + * no released draft exists that shows this, as the formulas have not been
1.437 + * updated yet after the release of ISO 32000.
1.438 + *
1.439 + * The default implementation here uses the PDF_SEPARABLE_BLEND_MODE and
1.440 + * PDF_NON_SEPARABLE_BLEND_MODE macros, which take the blend function as an
1.441 + * argument. Note that this implementation operates on premultiplied colors,
1.442 + * while the PDF specification does not. Therefore the code uses the formula
1.443 + * Cra = (1 – as) . Dca + (1 – ad) . Sca + B(Dca, ad, Sca, as)
1.444 + */
1.445 +
1.446 +/*
1.447 + * Multiply
1.448 + * B(Dca, ad, Sca, as) = Dca.Sca
1.449 + */
1.450 +
1.451 +static void
1.452 +combine_multiply_u (pixman_implementation_t *imp,
1.453 + pixman_op_t op,
1.454 + comp4_t * dest,
1.455 + const comp4_t * src,
1.456 + const comp4_t * mask,
1.457 + int width)
1.458 +{
1.459 + int i;
1.460 +
1.461 + for (i = 0; i < width; ++i)
1.462 + {
1.463 + comp4_t s = combine_mask (src, mask, i);
1.464 + comp4_t d = *(dest + i);
1.465 + comp4_t ss = s;
1.466 + comp4_t src_ia = ALPHA_c (~s);
1.467 + comp4_t dest_ia = ALPHA_c (~d);
1.468 +
1.469 + UNcx4_MUL_UNc_ADD_UNcx4_MUL_UNc (ss, dest_ia, d, src_ia);
1.470 + UNcx4_MUL_UNcx4 (d, s);
1.471 + UNcx4_ADD_UNcx4 (d, ss);
1.472 +
1.473 + *(dest + i) = d;
1.474 + }
1.475 +}
1.476 +
1.477 +static void
1.478 +combine_multiply_ca (pixman_implementation_t *imp,
1.479 + pixman_op_t op,
1.480 + comp4_t * dest,
1.481 + const comp4_t * src,
1.482 + const comp4_t * mask,
1.483 + int width)
1.484 +{
1.485 + int i;
1.486 +
1.487 + for (i = 0; i < width; ++i)
1.488 + {
1.489 + comp4_t m = *(mask + i);
1.490 + comp4_t s = *(src + i);
1.491 + comp4_t d = *(dest + i);
1.492 + comp4_t r = d;
1.493 + comp4_t dest_ia = ALPHA_c (~d);
1.494 +
1.495 + combine_mask_value_ca (&s, &m);
1.496 +
1.497 + UNcx4_MUL_UNcx4_ADD_UNcx4_MUL_UNc (r, ~m, s, dest_ia);
1.498 + UNcx4_MUL_UNcx4 (d, s);
1.499 + UNcx4_ADD_UNcx4 (r, d);
1.500 +
1.501 + *(dest + i) = r;
1.502 + }
1.503 +}
1.504 +
1.505 +#define PDF_SEPARABLE_BLEND_MODE(name) \
1.506 + static void \
1.507 + combine_ ## name ## _u (pixman_implementation_t *imp, \
1.508 + pixman_op_t op, \
1.509 + comp4_t * dest, \
1.510 + const comp4_t * src, \
1.511 + const comp4_t * mask, \
1.512 + int width) \
1.513 + { \
1.514 + int i; \
1.515 + for (i = 0; i < width; ++i) { \
1.516 + comp4_t s = combine_mask (src, mask, i); \
1.517 + comp4_t d = *(dest + i); \
1.518 + comp1_t sa = ALPHA_c (s); \
1.519 + comp1_t isa = ~sa; \
1.520 + comp1_t da = ALPHA_c (d); \
1.521 + comp1_t ida = ~da; \
1.522 + comp4_t result; \
1.523 + \
1.524 + result = d; \
1.525 + UNcx4_MUL_UNc_ADD_UNcx4_MUL_UNc (result, isa, s, ida); \
1.526 + \
1.527 + *(dest + i) = result + \
1.528 + (DIV_ONE_UNc (sa * (comp4_t)da) << A_SHIFT) + \
1.529 + (blend_ ## name (RED_c (d), da, RED_c (s), sa) << R_SHIFT) + \
1.530 + (blend_ ## name (GREEN_c (d), da, GREEN_c (s), sa) << G_SHIFT) + \
1.531 + (blend_ ## name (BLUE_c (d), da, BLUE_c (s), sa)); \
1.532 + } \
1.533 + } \
1.534 + \
1.535 + static void \
1.536 + combine_ ## name ## _ca (pixman_implementation_t *imp, \
1.537 + pixman_op_t op, \
1.538 + comp4_t * dest, \
1.539 + const comp4_t * src, \
1.540 + const comp4_t * mask, \
1.541 + int width) \
1.542 + { \
1.543 + int i; \
1.544 + for (i = 0; i < width; ++i) { \
1.545 + comp4_t m = *(mask + i); \
1.546 + comp4_t s = *(src + i); \
1.547 + comp4_t d = *(dest + i); \
1.548 + comp1_t da = ALPHA_c (d); \
1.549 + comp1_t ida = ~da; \
1.550 + comp4_t result; \
1.551 + \
1.552 + combine_mask_value_ca (&s, &m); \
1.553 + \
1.554 + result = d; \
1.555 + UNcx4_MUL_UNcx4_ADD_UNcx4_MUL_UNc (result, ~m, s, ida); \
1.556 + \
1.557 + result += \
1.558 + (DIV_ONE_UNc (ALPHA_c (m) * (comp4_t)da) << A_SHIFT) + \
1.559 + (blend_ ## name (RED_c (d), da, RED_c (s), RED_c (m)) << R_SHIFT) + \
1.560 + (blend_ ## name (GREEN_c (d), da, GREEN_c (s), GREEN_c (m)) << G_SHIFT) + \
1.561 + (blend_ ## name (BLUE_c (d), da, BLUE_c (s), BLUE_c (m))); \
1.562 + \
1.563 + *(dest + i) = result; \
1.564 + } \
1.565 + }
1.566 +
1.567 +/*
1.568 + * Screen
1.569 + * B(Dca, ad, Sca, as) = Dca.sa + Sca.da - Dca.Sca
1.570 + */
1.571 +static inline comp4_t
1.572 +blend_screen (comp4_t dca, comp4_t da, comp4_t sca, comp4_t sa)
1.573 +{
1.574 + return DIV_ONE_UNc (sca * da + dca * sa - sca * dca);
1.575 +}
1.576 +
1.577 +PDF_SEPARABLE_BLEND_MODE (screen)
1.578 +
1.579 +/*
1.580 + * Overlay
1.581 + * B(Dca, Da, Sca, Sa) =
1.582 + * if 2.Dca < Da
1.583 + * 2.Sca.Dca
1.584 + * otherwise
1.585 + * Sa.Da - 2.(Da - Dca).(Sa - Sca)
1.586 + */
1.587 +static inline comp4_t
1.588 +blend_overlay (comp4_t dca, comp4_t da, comp4_t sca, comp4_t sa)
1.589 +{
1.590 + comp4_t rca;
1.591 +
1.592 + if (2 * dca < da)
1.593 + rca = 2 * sca * dca;
1.594 + else
1.595 + rca = sa * da - 2 * (da - dca) * (sa - sca);
1.596 + return DIV_ONE_UNc (rca);
1.597 +}
1.598 +
1.599 +PDF_SEPARABLE_BLEND_MODE (overlay)
1.600 +
1.601 +/*
1.602 + * Darken
1.603 + * B(Dca, Da, Sca, Sa) = min (Sca.Da, Dca.Sa)
1.604 + */
1.605 +static inline comp4_t
1.606 +blend_darken (comp4_t dca, comp4_t da, comp4_t sca, comp4_t sa)
1.607 +{
1.608 + comp4_t s, d;
1.609 +
1.610 + s = sca * da;
1.611 + d = dca * sa;
1.612 + return DIV_ONE_UNc (s > d ? d : s);
1.613 +}
1.614 +
1.615 +PDF_SEPARABLE_BLEND_MODE (darken)
1.616 +
1.617 +/*
1.618 + * Lighten
1.619 + * B(Dca, Da, Sca, Sa) = max (Sca.Da, Dca.Sa)
1.620 + */
1.621 +static inline comp4_t
1.622 +blend_lighten (comp4_t dca, comp4_t da, comp4_t sca, comp4_t sa)
1.623 +{
1.624 + comp4_t s, d;
1.625 +
1.626 + s = sca * da;
1.627 + d = dca * sa;
1.628 + return DIV_ONE_UNc (s > d ? s : d);
1.629 +}
1.630 +
1.631 +PDF_SEPARABLE_BLEND_MODE (lighten)
1.632 +
1.633 +/*
1.634 + * Color dodge
1.635 + * B(Dca, Da, Sca, Sa) =
1.636 + * if Dca == 0
1.637 + * 0
1.638 + * if Sca == Sa
1.639 + * Sa.Da
1.640 + * otherwise
1.641 + * Sa.Da. min (1, Dca / Da / (1 - Sca/Sa))
1.642 + */
1.643 +static inline comp4_t
1.644 +blend_color_dodge (comp4_t dca, comp4_t da, comp4_t sca, comp4_t sa)
1.645 +{
1.646 + if (sca >= sa)
1.647 + {
1.648 + return dca == 0 ? 0 : DIV_ONE_UNc (sa * da);
1.649 + }
1.650 + else
1.651 + {
1.652 + comp4_t rca = dca * sa / (sa - sca);
1.653 + return DIV_ONE_UNc (sa * MIN (rca, da));
1.654 + }
1.655 +}
1.656 +
1.657 +PDF_SEPARABLE_BLEND_MODE (color_dodge)
1.658 +
1.659 +/*
1.660 + * Color burn
1.661 + * B(Dca, Da, Sca, Sa) =
1.662 + * if Dca == Da
1.663 + * Sa.Da
1.664 + * if Sca == 0
1.665 + * 0
1.666 + * otherwise
1.667 + * Sa.Da.(1 - min (1, (1 - Dca/Da).Sa / Sca))
1.668 + */
1.669 +static inline comp4_t
1.670 +blend_color_burn (comp4_t dca, comp4_t da, comp4_t sca, comp4_t sa)
1.671 +{
1.672 + if (sca == 0)
1.673 + {
1.674 + return dca < da ? 0 : DIV_ONE_UNc (sa * da);
1.675 + }
1.676 + else
1.677 + {
1.678 + comp4_t rca = (da - dca) * sa / sca;
1.679 + return DIV_ONE_UNc (sa * (MAX (rca, da) - rca));
1.680 + }
1.681 +}
1.682 +
1.683 +PDF_SEPARABLE_BLEND_MODE (color_burn)
1.684 +
1.685 +/*
1.686 + * Hard light
1.687 + * B(Dca, Da, Sca, Sa) =
1.688 + * if 2.Sca < Sa
1.689 + * 2.Sca.Dca
1.690 + * otherwise
1.691 + * Sa.Da - 2.(Da - Dca).(Sa - Sca)
1.692 + */
1.693 +static inline comp4_t
1.694 +blend_hard_light (comp4_t dca, comp4_t da, comp4_t sca, comp4_t sa)
1.695 +{
1.696 + if (2 * sca < sa)
1.697 + return DIV_ONE_UNc (2 * sca * dca);
1.698 + else
1.699 + return DIV_ONE_UNc (sa * da - 2 * (da - dca) * (sa - sca));
1.700 +}
1.701 +
1.702 +PDF_SEPARABLE_BLEND_MODE (hard_light)
1.703 +
1.704 +/*
1.705 + * Soft light
1.706 + * B(Dca, Da, Sca, Sa) =
1.707 + * if (2.Sca <= Sa)
1.708 + * Dca.(Sa - (1 - Dca/Da).(2.Sca - Sa))
1.709 + * otherwise if Dca.4 <= Da
1.710 + * Dca.(Sa + (2.Sca - Sa).((16.Dca/Da - 12).Dca/Da + 3)
1.711 + * otherwise
1.712 + * (Dca.Sa + (SQRT (Dca/Da).Da - Dca).(2.Sca - Sa))
1.713 + */
1.714 +static inline comp4_t
1.715 +blend_soft_light (comp4_t dca_org,
1.716 + comp4_t da_org,
1.717 + comp4_t sca_org,
1.718 + comp4_t sa_org)
1.719 +{
1.720 + double dca = dca_org * (1.0 / MASK);
1.721 + double da = da_org * (1.0 / MASK);
1.722 + double sca = sca_org * (1.0 / MASK);
1.723 + double sa = sa_org * (1.0 / MASK);
1.724 + double rca;
1.725 +
1.726 + if (2 * sca < sa)
1.727 + {
1.728 + if (da == 0)
1.729 + rca = dca * sa;
1.730 + else
1.731 + rca = dca * sa - dca * (da - dca) * (sa - 2 * sca) / da;
1.732 + }
1.733 + else if (da == 0)
1.734 + {
1.735 + rca = 0;
1.736 + }
1.737 + else if (4 * dca <= da)
1.738 + {
1.739 + rca = dca * sa +
1.740 + (2 * sca - sa) * dca * ((16 * dca / da - 12) * dca / da + 3);
1.741 + }
1.742 + else
1.743 + {
1.744 + rca = dca * sa + (sqrt (dca * da) - dca) * (2 * sca - sa);
1.745 + }
1.746 + return rca * MASK + 0.5;
1.747 +}
1.748 +
1.749 +PDF_SEPARABLE_BLEND_MODE (soft_light)
1.750 +
1.751 +/*
1.752 + * Difference
1.753 + * B(Dca, Da, Sca, Sa) = abs (Dca.Sa - Sca.Da)
1.754 + */
1.755 +static inline comp4_t
1.756 +blend_difference (comp4_t dca, comp4_t da, comp4_t sca, comp4_t sa)
1.757 +{
1.758 + comp4_t dcasa = dca * sa;
1.759 + comp4_t scada = sca * da;
1.760 +
1.761 + if (scada < dcasa)
1.762 + return DIV_ONE_UNc (dcasa - scada);
1.763 + else
1.764 + return DIV_ONE_UNc (scada - dcasa);
1.765 +}
1.766 +
1.767 +PDF_SEPARABLE_BLEND_MODE (difference)
1.768 +
1.769 +/*
1.770 + * Exclusion
1.771 + * B(Dca, Da, Sca, Sa) = (Sca.Da + Dca.Sa - 2.Sca.Dca)
1.772 + */
1.773 +
1.774 +/* This can be made faster by writing it directly and not using
1.775 + * PDF_SEPARABLE_BLEND_MODE, but that's a performance optimization */
1.776 +
1.777 +static inline comp4_t
1.778 +blend_exclusion (comp4_t dca, comp4_t da, comp4_t sca, comp4_t sa)
1.779 +{
1.780 + return DIV_ONE_UNc (sca * da + dca * sa - 2 * dca * sca);
1.781 +}
1.782 +
1.783 +PDF_SEPARABLE_BLEND_MODE (exclusion)
1.784 +
1.785 +#undef PDF_SEPARABLE_BLEND_MODE
1.786 +
1.787 +/*
1.788 + * PDF nonseperable blend modes are implemented using the following functions
1.789 + * to operate in Hsl space, with Cmax, Cmid, Cmin referring to the max, mid
1.790 + * and min value of the red, green and blue components.
1.791 + *
1.792 + * LUM (C) = 0.3 × Cred + 0.59 × Cgreen + 0.11 × Cblue
1.793 + *
1.794 + * clip_color (C):
1.795 + * l = LUM (C)
1.796 + * min = Cmin
1.797 + * max = Cmax
1.798 + * if n < 0.0
1.799 + * C = l + ( ( ( C – l ) × l ) ⁄ ( l – min ) )
1.800 + * if x > 1.0
1.801 + * C = l + ( ( ( C – l ) × ( 1 – l ) ) ⁄ ( max – l ) )
1.802 + * return C
1.803 + *
1.804 + * set_lum (C, l):
1.805 + * d = l – LUM (C)
1.806 + * C += d
1.807 + * return clip_color (C)
1.808 + *
1.809 + * SAT (C) = CH_MAX (C) - CH_MIN (C)
1.810 + *
1.811 + * set_sat (C, s):
1.812 + * if Cmax > Cmin
1.813 + * Cmid = ( ( ( Cmid – Cmin ) × s ) ⁄ ( Cmax – Cmin ) )
1.814 + * Cmax = s
1.815 + * else
1.816 + * Cmid = Cmax = 0.0
1.817 + * Cmin = 0.0
1.818 + * return C
1.819 + */
1.820 +
1.821 +/* For premultiplied colors, we need to know what happens when C is
1.822 + * multiplied by a real number. LUM and SAT are linear:
1.823 + *
1.824 + * LUM (r × C) = r × LUM (C) SAT (r * C) = r * SAT (C)
1.825 + *
1.826 + * If we extend clip_color with an extra argument a and change
1.827 + *
1.828 + * if x >= 1.0
1.829 + *
1.830 + * into
1.831 + *
1.832 + * if x >= a
1.833 + *
1.834 + * then clip_color is also linear:
1.835 + *
1.836 + * r * clip_color (C, a) = clip_color (r_c, ra);
1.837 + *
1.838 + * for positive r.
1.839 + *
1.840 + * Similarly, we can extend set_lum with an extra argument that is just passed
1.841 + * on to clip_color:
1.842 + *
1.843 + * r * set_lum ( C, l, a)
1.844 + *
1.845 + * = r × clip_color ( C + l - LUM (C), a)
1.846 + *
1.847 + * = clip_color ( r * C + r × l - r * LUM (C), r * a)
1.848 + *
1.849 + * = set_lum ( r * C, r * l, r * a)
1.850 + *
1.851 + * Finally, set_sat:
1.852 + *
1.853 + * r * set_sat (C, s) = set_sat (x * C, r * s)
1.854 + *
1.855 + * The above holds for all non-zero x, because the x'es in the fraction for
1.856 + * C_mid cancel out. Specifically, it holds for x = r:
1.857 + *
1.858 + * r * set_sat (C, s) = set_sat (r_c, rs)
1.859 + *
1.860 + */
1.861 +
1.862 +/* So, for the non-separable PDF blend modes, we have (using s, d for
1.863 + * non-premultiplied colors, and S, D for premultiplied:
1.864 + *
1.865 + * Color:
1.866 + *
1.867 + * a_s * a_d * B(s, d)
1.868 + * = a_s * a_d * set_lum (S/a_s, LUM (D/a_d), 1)
1.869 + * = set_lum (S * a_d, a_s * LUM (D), a_s * a_d)
1.870 + *
1.871 + *
1.872 + * Luminosity:
1.873 + *
1.874 + * a_s * a_d * B(s, d)
1.875 + * = a_s * a_d * set_lum (D/a_d, LUM(S/a_s), 1)
1.876 + * = set_lum (a_s * D, a_d * LUM(S), a_s * a_d)
1.877 + *
1.878 + *
1.879 + * Saturation:
1.880 + *
1.881 + * a_s * a_d * B(s, d)
1.882 + * = a_s * a_d * set_lum (set_sat (D/a_d, SAT (S/a_s)), LUM (D/a_d), 1)
1.883 + * = set_lum (a_s * a_d * set_sat (D/a_d, SAT (S/a_s)),
1.884 + * a_s * LUM (D), a_s * a_d)
1.885 + * = set_lum (set_sat (a_s * D, a_d * SAT (S), a_s * LUM (D), a_s * a_d))
1.886 + *
1.887 + * Hue:
1.888 + *
1.889 + * a_s * a_d * B(s, d)
1.890 + * = a_s * a_d * set_lum (set_sat (S/a_s, SAT (D/a_d)), LUM (D/a_d), 1)
1.891 + * = set_lum (set_sat (a_d * S, a_s * SAT (D)), a_s * LUM (D), a_s * a_d)
1.892 + *
1.893 + */
1.894 +
1.895 +#define CH_MIN(c) (c[0] < c[1] ? (c[0] < c[2] ? c[0] : c[2]) : (c[1] < c[2] ? c[1] : c[2]))
1.896 +#define CH_MAX(c) (c[0] > c[1] ? (c[0] > c[2] ? c[0] : c[2]) : (c[1] > c[2] ? c[1] : c[2]))
1.897 +#define LUM(c) ((c[0] * 30 + c[1] * 59 + c[2] * 11) / 100)
1.898 +#define SAT(c) (CH_MAX (c) - CH_MIN (c))
1.899 +
1.900 +#define PDF_NON_SEPARABLE_BLEND_MODE(name) \
1.901 + static void \
1.902 + combine_ ## name ## _u (pixman_implementation_t *imp, \
1.903 + pixman_op_t op, \
1.904 + comp4_t *dest, \
1.905 + const comp4_t *src, \
1.906 + const comp4_t *mask, \
1.907 + int width) \
1.908 + { \
1.909 + int i; \
1.910 + for (i = 0; i < width; ++i) \
1.911 + { \
1.912 + comp4_t s = combine_mask (src, mask, i); \
1.913 + comp4_t d = *(dest + i); \
1.914 + comp1_t sa = ALPHA_c (s); \
1.915 + comp1_t isa = ~sa; \
1.916 + comp1_t da = ALPHA_c (d); \
1.917 + comp1_t ida = ~da; \
1.918 + comp4_t result; \
1.919 + comp4_t sc[3], dc[3], c[3]; \
1.920 + \
1.921 + result = d; \
1.922 + UNcx4_MUL_UNc_ADD_UNcx4_MUL_UNc (result, isa, s, ida); \
1.923 + dc[0] = RED_c (d); \
1.924 + sc[0] = RED_c (s); \
1.925 + dc[1] = GREEN_c (d); \
1.926 + sc[1] = GREEN_c (s); \
1.927 + dc[2] = BLUE_c (d); \
1.928 + sc[2] = BLUE_c (s); \
1.929 + blend_ ## name (c, dc, da, sc, sa); \
1.930 + \
1.931 + *(dest + i) = result + \
1.932 + (DIV_ONE_UNc (sa * (comp4_t)da) << A_SHIFT) + \
1.933 + (DIV_ONE_UNc (c[0]) << R_SHIFT) + \
1.934 + (DIV_ONE_UNc (c[1]) << G_SHIFT) + \
1.935 + (DIV_ONE_UNc (c[2])); \
1.936 + } \
1.937 + }
1.938 +
1.939 +static void
1.940 +set_lum (comp4_t dest[3], comp4_t src[3], comp4_t sa, comp4_t lum)
1.941 +{
1.942 + double a, l, min, max;
1.943 + double tmp[3];
1.944 +
1.945 + a = sa * (1.0 / MASK);
1.946 +
1.947 + l = lum * (1.0 / MASK);
1.948 + tmp[0] = src[0] * (1.0 / MASK);
1.949 + tmp[1] = src[1] * (1.0 / MASK);
1.950 + tmp[2] = src[2] * (1.0 / MASK);
1.951 +
1.952 + l = l - LUM (tmp);
1.953 + tmp[0] += l;
1.954 + tmp[1] += l;
1.955 + tmp[2] += l;
1.956 +
1.957 + /* clip_color */
1.958 + l = LUM (tmp);
1.959 + min = CH_MIN (tmp);
1.960 + max = CH_MAX (tmp);
1.961 +
1.962 + if (min < 0)
1.963 + {
1.964 + if (l - min == 0.0)
1.965 + {
1.966 + tmp[0] = 0;
1.967 + tmp[1] = 0;
1.968 + tmp[2] = 0;
1.969 + }
1.970 + else
1.971 + {
1.972 + tmp[0] = l + (tmp[0] - l) * l / (l - min);
1.973 + tmp[1] = l + (tmp[1] - l) * l / (l - min);
1.974 + tmp[2] = l + (tmp[2] - l) * l / (l - min);
1.975 + }
1.976 + }
1.977 + if (max > a)
1.978 + {
1.979 + if (max - l == 0.0)
1.980 + {
1.981 + tmp[0] = a;
1.982 + tmp[1] = a;
1.983 + tmp[2] = a;
1.984 + }
1.985 + else
1.986 + {
1.987 + tmp[0] = l + (tmp[0] - l) * (a - l) / (max - l);
1.988 + tmp[1] = l + (tmp[1] - l) * (a - l) / (max - l);
1.989 + tmp[2] = l + (tmp[2] - l) * (a - l) / (max - l);
1.990 + }
1.991 + }
1.992 +
1.993 + dest[0] = tmp[0] * MASK + 0.5;
1.994 + dest[1] = tmp[1] * MASK + 0.5;
1.995 + dest[2] = tmp[2] * MASK + 0.5;
1.996 +}
1.997 +
1.998 +static void
1.999 +set_sat (comp4_t dest[3], comp4_t src[3], comp4_t sat)
1.1000 +{
1.1001 + int id[3];
1.1002 + comp4_t min, max;
1.1003 +
1.1004 + if (src[0] > src[1])
1.1005 + {
1.1006 + if (src[0] > src[2])
1.1007 + {
1.1008 + id[0] = 0;
1.1009 + if (src[1] > src[2])
1.1010 + {
1.1011 + id[1] = 1;
1.1012 + id[2] = 2;
1.1013 + }
1.1014 + else
1.1015 + {
1.1016 + id[1] = 2;
1.1017 + id[2] = 1;
1.1018 + }
1.1019 + }
1.1020 + else
1.1021 + {
1.1022 + id[0] = 2;
1.1023 + id[1] = 0;
1.1024 + id[2] = 1;
1.1025 + }
1.1026 + }
1.1027 + else
1.1028 + {
1.1029 + if (src[0] > src[2])
1.1030 + {
1.1031 + id[0] = 1;
1.1032 + id[1] = 0;
1.1033 + id[2] = 2;
1.1034 + }
1.1035 + else
1.1036 + {
1.1037 + id[2] = 0;
1.1038 + if (src[1] > src[2])
1.1039 + {
1.1040 + id[0] = 1;
1.1041 + id[1] = 2;
1.1042 + }
1.1043 + else
1.1044 + {
1.1045 + id[0] = 2;
1.1046 + id[1] = 1;
1.1047 + }
1.1048 + }
1.1049 + }
1.1050 +
1.1051 + max = dest[id[0]];
1.1052 + min = dest[id[2]];
1.1053 + if (max > min)
1.1054 + {
1.1055 + dest[id[1]] = (dest[id[1]] - min) * sat / (max - min);
1.1056 + dest[id[0]] = sat;
1.1057 + dest[id[2]] = 0;
1.1058 + }
1.1059 + else
1.1060 + {
1.1061 + dest[0] = dest[1] = dest[2] = 0;
1.1062 + }
1.1063 +}
1.1064 +
1.1065 +/*
1.1066 + * Hue:
1.1067 + * B(Cb, Cs) = set_lum (set_sat (Cs, SAT (Cb)), LUM (Cb))
1.1068 + */
1.1069 +static inline void
1.1070 +blend_hsl_hue (comp4_t c[3],
1.1071 + comp4_t dc[3],
1.1072 + comp4_t da,
1.1073 + comp4_t sc[3],
1.1074 + comp4_t sa)
1.1075 +{
1.1076 + c[0] = sc[0] * da;
1.1077 + c[1] = sc[1] * da;
1.1078 + c[2] = sc[2] * da;
1.1079 + set_sat (c, c, SAT (dc) * sa);
1.1080 + set_lum (c, c, sa * da, LUM (dc) * sa);
1.1081 +}
1.1082 +
1.1083 +PDF_NON_SEPARABLE_BLEND_MODE (hsl_hue)
1.1084 +
1.1085 +/*
1.1086 + * Saturation:
1.1087 + * B(Cb, Cs) = set_lum (set_sat (Cb, SAT (Cs)), LUM (Cb))
1.1088 + */
1.1089 +static inline void
1.1090 +blend_hsl_saturation (comp4_t c[3],
1.1091 + comp4_t dc[3],
1.1092 + comp4_t da,
1.1093 + comp4_t sc[3],
1.1094 + comp4_t sa)
1.1095 +{
1.1096 + c[0] = dc[0] * sa;
1.1097 + c[1] = dc[1] * sa;
1.1098 + c[2] = dc[2] * sa;
1.1099 + set_sat (c, c, SAT (sc) * da);
1.1100 + set_lum (c, c, sa * da, LUM (dc) * sa);
1.1101 +}
1.1102 +
1.1103 +PDF_NON_SEPARABLE_BLEND_MODE (hsl_saturation)
1.1104 +
1.1105 +/*
1.1106 + * Color:
1.1107 + * B(Cb, Cs) = set_lum (Cs, LUM (Cb))
1.1108 + */
1.1109 +static inline void
1.1110 +blend_hsl_color (comp4_t c[3],
1.1111 + comp4_t dc[3],
1.1112 + comp4_t da,
1.1113 + comp4_t sc[3],
1.1114 + comp4_t sa)
1.1115 +{
1.1116 + c[0] = sc[0] * da;
1.1117 + c[1] = sc[1] * da;
1.1118 + c[2] = sc[2] * da;
1.1119 + set_lum (c, c, sa * da, LUM (dc) * sa);
1.1120 +}
1.1121 +
1.1122 +PDF_NON_SEPARABLE_BLEND_MODE (hsl_color)
1.1123 +
1.1124 +/*
1.1125 + * Luminosity:
1.1126 + * B(Cb, Cs) = set_lum (Cb, LUM (Cs))
1.1127 + */
1.1128 +static inline void
1.1129 +blend_hsl_luminosity (comp4_t c[3],
1.1130 + comp4_t dc[3],
1.1131 + comp4_t da,
1.1132 + comp4_t sc[3],
1.1133 + comp4_t sa)
1.1134 +{
1.1135 + c[0] = dc[0] * sa;
1.1136 + c[1] = dc[1] * sa;
1.1137 + c[2] = dc[2] * sa;
1.1138 + set_lum (c, c, sa * da, LUM (sc) * da);
1.1139 +}
1.1140 +
1.1141 +PDF_NON_SEPARABLE_BLEND_MODE (hsl_luminosity)
1.1142 +
1.1143 +#undef SAT
1.1144 +#undef LUM
1.1145 +#undef CH_MAX
1.1146 +#undef CH_MIN
1.1147 +#undef PDF_NON_SEPARABLE_BLEND_MODE
1.1148 +
1.1149 +/* All of the disjoint/conjoint composing functions
1.1150 + *
1.1151 + * The four entries in the first column indicate what source contributions
1.1152 + * come from each of the four areas of the picture -- areas covered by neither
1.1153 + * A nor B, areas covered only by A, areas covered only by B and finally
1.1154 + * areas covered by both A and B.
1.1155 + *
1.1156 + * Disjoint Conjoint
1.1157 + * Fa Fb Fa Fb
1.1158 + * (0,0,0,0) 0 0 0 0
1.1159 + * (0,A,0,A) 1 0 1 0
1.1160 + * (0,0,B,B) 0 1 0 1
1.1161 + * (0,A,B,A) 1 min((1-a)/b,1) 1 max(1-a/b,0)
1.1162 + * (0,A,B,B) min((1-b)/a,1) 1 max(1-b/a,0) 1
1.1163 + * (0,0,0,A) max(1-(1-b)/a,0) 0 min(1,b/a) 0
1.1164 + * (0,0,0,B) 0 max(1-(1-a)/b,0) 0 min(a/b,1)
1.1165 + * (0,A,0,0) min(1,(1-b)/a) 0 max(1-b/a,0) 0
1.1166 + * (0,0,B,0) 0 min(1,(1-a)/b) 0 max(1-a/b,0)
1.1167 + * (0,0,B,A) max(1-(1-b)/a,0) min(1,(1-a)/b) min(1,b/a) max(1-a/b,0)
1.1168 + * (0,A,0,B) min(1,(1-b)/a) max(1-(1-a)/b,0) max(1-b/a,0) min(1,a/b)
1.1169 + * (0,A,B,0) min(1,(1-b)/a) min(1,(1-a)/b) max(1-b/a,0) max(1-a/b,0)
1.1170 + *
1.1171 + * See http://marc.info/?l=xfree-render&m=99792000027857&w=2 for more
1.1172 + * information about these operators.
1.1173 + */
1.1174 +
1.1175 +#define COMBINE_A_OUT 1
1.1176 +#define COMBINE_A_IN 2
1.1177 +#define COMBINE_B_OUT 4
1.1178 +#define COMBINE_B_IN 8
1.1179 +
1.1180 +#define COMBINE_CLEAR 0
1.1181 +#define COMBINE_A (COMBINE_A_OUT | COMBINE_A_IN)
1.1182 +#define COMBINE_B (COMBINE_B_OUT | COMBINE_B_IN)
1.1183 +#define COMBINE_A_OVER (COMBINE_A_OUT | COMBINE_B_OUT | COMBINE_A_IN)
1.1184 +#define COMBINE_B_OVER (COMBINE_A_OUT | COMBINE_B_OUT | COMBINE_B_IN)
1.1185 +#define COMBINE_A_ATOP (COMBINE_B_OUT | COMBINE_A_IN)
1.1186 +#define COMBINE_B_ATOP (COMBINE_A_OUT | COMBINE_B_IN)
1.1187 +#define COMBINE_XOR (COMBINE_A_OUT | COMBINE_B_OUT)
1.1188 +
1.1189 +/* portion covered by a but not b */
1.1190 +static comp1_t
1.1191 +combine_disjoint_out_part (comp1_t a, comp1_t b)
1.1192 +{
1.1193 + /* min (1, (1-b) / a) */
1.1194 +
1.1195 + b = ~b; /* 1 - b */
1.1196 + if (b >= a) /* 1 - b >= a -> (1-b)/a >= 1 */
1.1197 + return MASK; /* 1 */
1.1198 + return DIV_UNc (b, a); /* (1-b) / a */
1.1199 +}
1.1200 +
1.1201 +/* portion covered by both a and b */
1.1202 +static comp1_t
1.1203 +combine_disjoint_in_part (comp1_t a, comp1_t b)
1.1204 +{
1.1205 + /* max (1-(1-b)/a,0) */
1.1206 + /* = - min ((1-b)/a - 1, 0) */
1.1207 + /* = 1 - min (1, (1-b)/a) */
1.1208 +
1.1209 + b = ~b; /* 1 - b */
1.1210 + if (b >= a) /* 1 - b >= a -> (1-b)/a >= 1 */
1.1211 + return 0; /* 1 - 1 */
1.1212 + return ~DIV_UNc(b, a); /* 1 - (1-b) / a */
1.1213 +}
1.1214 +
1.1215 +/* portion covered by a but not b */
1.1216 +static comp1_t
1.1217 +combine_conjoint_out_part (comp1_t a, comp1_t b)
1.1218 +{
1.1219 + /* max (1-b/a,0) */
1.1220 + /* = 1-min(b/a,1) */
1.1221 +
1.1222 + /* min (1, (1-b) / a) */
1.1223 +
1.1224 + if (b >= a) /* b >= a -> b/a >= 1 */
1.1225 + return 0x00; /* 0 */
1.1226 + return ~DIV_UNc(b, a); /* 1 - b/a */
1.1227 +}
1.1228 +
1.1229 +/* portion covered by both a and b */
1.1230 +static comp1_t
1.1231 +combine_conjoint_in_part (comp1_t a, comp1_t b)
1.1232 +{
1.1233 + /* min (1,b/a) */
1.1234 +
1.1235 + if (b >= a) /* b >= a -> b/a >= 1 */
1.1236 + return MASK; /* 1 */
1.1237 + return DIV_UNc (b, a); /* b/a */
1.1238 +}
1.1239 +
1.1240 +#define GET_COMP(v, i) ((comp2_t) (comp1_t) ((v) >> i))
1.1241 +
1.1242 +#define ADD(x, y, i, t) \
1.1243 + ((t) = GET_COMP (x, i) + GET_COMP (y, i), \
1.1244 + (comp4_t) ((comp1_t) ((t) | (0 - ((t) >> G_SHIFT)))) << (i))
1.1245 +
1.1246 +#define GENERIC(x, y, i, ax, ay, t, u, v) \
1.1247 + ((t) = (MUL_UNc (GET_COMP (y, i), ay, (u)) + \
1.1248 + MUL_UNc (GET_COMP (x, i), ax, (v))), \
1.1249 + (comp4_t) ((comp1_t) ((t) | \
1.1250 + (0 - ((t) >> G_SHIFT)))) << (i))
1.1251 +
1.1252 +static void
1.1253 +combine_disjoint_general_u (comp4_t * dest,
1.1254 + const comp4_t *src,
1.1255 + const comp4_t *mask,
1.1256 + int width,
1.1257 + comp1_t combine)
1.1258 +{
1.1259 + int i;
1.1260 +
1.1261 + for (i = 0; i < width; ++i)
1.1262 + {
1.1263 + comp4_t s = combine_mask (src, mask, i);
1.1264 + comp4_t d = *(dest + i);
1.1265 + comp4_t m, n, o, p;
1.1266 + comp2_t Fa, Fb, t, u, v;
1.1267 + comp1_t sa = s >> A_SHIFT;
1.1268 + comp1_t da = d >> A_SHIFT;
1.1269 +
1.1270 + switch (combine & COMBINE_A)
1.1271 + {
1.1272 + default:
1.1273 + Fa = 0;
1.1274 + break;
1.1275 +
1.1276 + case COMBINE_A_OUT:
1.1277 + Fa = combine_disjoint_out_part (sa, da);
1.1278 + break;
1.1279 +
1.1280 + case COMBINE_A_IN:
1.1281 + Fa = combine_disjoint_in_part (sa, da);
1.1282 + break;
1.1283 +
1.1284 + case COMBINE_A:
1.1285 + Fa = MASK;
1.1286 + break;
1.1287 + }
1.1288 +
1.1289 + switch (combine & COMBINE_B)
1.1290 + {
1.1291 + default:
1.1292 + Fb = 0;
1.1293 + break;
1.1294 +
1.1295 + case COMBINE_B_OUT:
1.1296 + Fb = combine_disjoint_out_part (da, sa);
1.1297 + break;
1.1298 +
1.1299 + case COMBINE_B_IN:
1.1300 + Fb = combine_disjoint_in_part (da, sa);
1.1301 + break;
1.1302 +
1.1303 + case COMBINE_B:
1.1304 + Fb = MASK;
1.1305 + break;
1.1306 + }
1.1307 + m = GENERIC (s, d, 0, Fa, Fb, t, u, v);
1.1308 + n = GENERIC (s, d, G_SHIFT, Fa, Fb, t, u, v);
1.1309 + o = GENERIC (s, d, R_SHIFT, Fa, Fb, t, u, v);
1.1310 + p = GENERIC (s, d, A_SHIFT, Fa, Fb, t, u, v);
1.1311 + s = m | n | o | p;
1.1312 + *(dest + i) = s;
1.1313 + }
1.1314 +}
1.1315 +
1.1316 +static void
1.1317 +combine_disjoint_over_u (pixman_implementation_t *imp,
1.1318 + pixman_op_t op,
1.1319 + comp4_t * dest,
1.1320 + const comp4_t * src,
1.1321 + const comp4_t * mask,
1.1322 + int width)
1.1323 +{
1.1324 + int i;
1.1325 +
1.1326 + for (i = 0; i < width; ++i)
1.1327 + {
1.1328 + comp4_t s = combine_mask (src, mask, i);
1.1329 + comp2_t a = s >> A_SHIFT;
1.1330 +
1.1331 + if (s != 0x00)
1.1332 + {
1.1333 + comp4_t d = *(dest + i);
1.1334 + a = combine_disjoint_out_part (d >> A_SHIFT, a);
1.1335 + UNcx4_MUL_UNc_ADD_UNcx4 (d, a, s);
1.1336 +
1.1337 + *(dest + i) = d;
1.1338 + }
1.1339 + }
1.1340 +}
1.1341 +
1.1342 +static void
1.1343 +combine_disjoint_in_u (pixman_implementation_t *imp,
1.1344 + pixman_op_t op,
1.1345 + comp4_t * dest,
1.1346 + const comp4_t * src,
1.1347 + const comp4_t * mask,
1.1348 + int width)
1.1349 +{
1.1350 + combine_disjoint_general_u (dest, src, mask, width, COMBINE_A_IN);
1.1351 +}
1.1352 +
1.1353 +static void
1.1354 +combine_disjoint_in_reverse_u (pixman_implementation_t *imp,
1.1355 + pixman_op_t op,
1.1356 + comp4_t * dest,
1.1357 + const comp4_t * src,
1.1358 + const comp4_t * mask,
1.1359 + int width)
1.1360 +{
1.1361 + combine_disjoint_general_u (dest, src, mask, width, COMBINE_B_IN);
1.1362 +}
1.1363 +
1.1364 +static void
1.1365 +combine_disjoint_out_u (pixman_implementation_t *imp,
1.1366 + pixman_op_t op,
1.1367 + comp4_t * dest,
1.1368 + const comp4_t * src,
1.1369 + const comp4_t * mask,
1.1370 + int width)
1.1371 +{
1.1372 + combine_disjoint_general_u (dest, src, mask, width, COMBINE_A_OUT);
1.1373 +}
1.1374 +
1.1375 +static void
1.1376 +combine_disjoint_out_reverse_u (pixman_implementation_t *imp,
1.1377 + pixman_op_t op,
1.1378 + comp4_t * dest,
1.1379 + const comp4_t * src,
1.1380 + const comp4_t * mask,
1.1381 + int width)
1.1382 +{
1.1383 + combine_disjoint_general_u (dest, src, mask, width, COMBINE_B_OUT);
1.1384 +}
1.1385 +
1.1386 +static void
1.1387 +combine_disjoint_atop_u (pixman_implementation_t *imp,
1.1388 + pixman_op_t op,
1.1389 + comp4_t * dest,
1.1390 + const comp4_t * src,
1.1391 + const comp4_t * mask,
1.1392 + int width)
1.1393 +{
1.1394 + combine_disjoint_general_u (dest, src, mask, width, COMBINE_A_ATOP);
1.1395 +}
1.1396 +
1.1397 +static void
1.1398 +combine_disjoint_atop_reverse_u (pixman_implementation_t *imp,
1.1399 + pixman_op_t op,
1.1400 + comp4_t * dest,
1.1401 + const comp4_t * src,
1.1402 + const comp4_t * mask,
1.1403 + int width)
1.1404 +{
1.1405 + combine_disjoint_general_u (dest, src, mask, width, COMBINE_B_ATOP);
1.1406 +}
1.1407 +
1.1408 +static void
1.1409 +combine_disjoint_xor_u (pixman_implementation_t *imp,
1.1410 + pixman_op_t op,
1.1411 + comp4_t * dest,
1.1412 + const comp4_t * src,
1.1413 + const comp4_t * mask,
1.1414 + int width)
1.1415 +{
1.1416 + combine_disjoint_general_u (dest, src, mask, width, COMBINE_XOR);
1.1417 +}
1.1418 +
1.1419 +static void
1.1420 +combine_conjoint_general_u (comp4_t * dest,
1.1421 + const comp4_t *src,
1.1422 + const comp4_t *mask,
1.1423 + int width,
1.1424 + comp1_t combine)
1.1425 +{
1.1426 + int i;
1.1427 +
1.1428 + for (i = 0; i < width; ++i)
1.1429 + {
1.1430 + comp4_t s = combine_mask (src, mask, i);
1.1431 + comp4_t d = *(dest + i);
1.1432 + comp4_t m, n, o, p;
1.1433 + comp2_t Fa, Fb, t, u, v;
1.1434 + comp1_t sa = s >> A_SHIFT;
1.1435 + comp1_t da = d >> A_SHIFT;
1.1436 +
1.1437 + switch (combine & COMBINE_A)
1.1438 + {
1.1439 + default:
1.1440 + Fa = 0;
1.1441 + break;
1.1442 +
1.1443 + case COMBINE_A_OUT:
1.1444 + Fa = combine_conjoint_out_part (sa, da);
1.1445 + break;
1.1446 +
1.1447 + case COMBINE_A_IN:
1.1448 + Fa = combine_conjoint_in_part (sa, da);
1.1449 + break;
1.1450 +
1.1451 + case COMBINE_A:
1.1452 + Fa = MASK;
1.1453 + break;
1.1454 + }
1.1455 +
1.1456 + switch (combine & COMBINE_B)
1.1457 + {
1.1458 + default:
1.1459 + Fb = 0;
1.1460 + break;
1.1461 +
1.1462 + case COMBINE_B_OUT:
1.1463 + Fb = combine_conjoint_out_part (da, sa);
1.1464 + break;
1.1465 +
1.1466 + case COMBINE_B_IN:
1.1467 + Fb = combine_conjoint_in_part (da, sa);
1.1468 + break;
1.1469 +
1.1470 + case COMBINE_B:
1.1471 + Fb = MASK;
1.1472 + break;
1.1473 + }
1.1474 +
1.1475 + m = GENERIC (s, d, 0, Fa, Fb, t, u, v);
1.1476 + n = GENERIC (s, d, G_SHIFT, Fa, Fb, t, u, v);
1.1477 + o = GENERIC (s, d, R_SHIFT, Fa, Fb, t, u, v);
1.1478 + p = GENERIC (s, d, A_SHIFT, Fa, Fb, t, u, v);
1.1479 +
1.1480 + s = m | n | o | p;
1.1481 +
1.1482 + *(dest + i) = s;
1.1483 + }
1.1484 +}
1.1485 +
1.1486 +static void
1.1487 +combine_conjoint_over_u (pixman_implementation_t *imp,
1.1488 + pixman_op_t op,
1.1489 + comp4_t * dest,
1.1490 + const comp4_t * src,
1.1491 + const comp4_t * mask,
1.1492 + int width)
1.1493 +{
1.1494 + combine_conjoint_general_u (dest, src, mask, width, COMBINE_A_OVER);
1.1495 +}
1.1496 +
1.1497 +static void
1.1498 +combine_conjoint_over_reverse_u (pixman_implementation_t *imp,
1.1499 + pixman_op_t op,
1.1500 + comp4_t * dest,
1.1501 + const comp4_t * src,
1.1502 + const comp4_t * mask,
1.1503 + int width)
1.1504 +{
1.1505 + combine_conjoint_general_u (dest, src, mask, width, COMBINE_B_OVER);
1.1506 +}
1.1507 +
1.1508 +static void
1.1509 +combine_conjoint_in_u (pixman_implementation_t *imp,
1.1510 + pixman_op_t op,
1.1511 + comp4_t * dest,
1.1512 + const comp4_t * src,
1.1513 + const comp4_t * mask,
1.1514 + int width)
1.1515 +{
1.1516 + combine_conjoint_general_u (dest, src, mask, width, COMBINE_A_IN);
1.1517 +}
1.1518 +
1.1519 +static void
1.1520 +combine_conjoint_in_reverse_u (pixman_implementation_t *imp,
1.1521 + pixman_op_t op,
1.1522 + comp4_t * dest,
1.1523 + const comp4_t * src,
1.1524 + const comp4_t * mask,
1.1525 + int width)
1.1526 +{
1.1527 + combine_conjoint_general_u (dest, src, mask, width, COMBINE_B_IN);
1.1528 +}
1.1529 +
1.1530 +static void
1.1531 +combine_conjoint_out_u (pixman_implementation_t *imp,
1.1532 + pixman_op_t op,
1.1533 + comp4_t * dest,
1.1534 + const comp4_t * src,
1.1535 + const comp4_t * mask,
1.1536 + int width)
1.1537 +{
1.1538 + combine_conjoint_general_u (dest, src, mask, width, COMBINE_A_OUT);
1.1539 +}
1.1540 +
1.1541 +static void
1.1542 +combine_conjoint_out_reverse_u (pixman_implementation_t *imp,
1.1543 + pixman_op_t op,
1.1544 + comp4_t * dest,
1.1545 + const comp4_t * src,
1.1546 + const comp4_t * mask,
1.1547 + int width)
1.1548 +{
1.1549 + combine_conjoint_general_u (dest, src, mask, width, COMBINE_B_OUT);
1.1550 +}
1.1551 +
1.1552 +static void
1.1553 +combine_conjoint_atop_u (pixman_implementation_t *imp,
1.1554 + pixman_op_t op,
1.1555 + comp4_t * dest,
1.1556 + const comp4_t * src,
1.1557 + const comp4_t * mask,
1.1558 + int width)
1.1559 +{
1.1560 + combine_conjoint_general_u (dest, src, mask, width, COMBINE_A_ATOP);
1.1561 +}
1.1562 +
1.1563 +static void
1.1564 +combine_conjoint_atop_reverse_u (pixman_implementation_t *imp,
1.1565 + pixman_op_t op,
1.1566 + comp4_t * dest,
1.1567 + const comp4_t * src,
1.1568 + const comp4_t * mask,
1.1569 + int width)
1.1570 +{
1.1571 + combine_conjoint_general_u (dest, src, mask, width, COMBINE_B_ATOP);
1.1572 +}
1.1573 +
1.1574 +static void
1.1575 +combine_conjoint_xor_u (pixman_implementation_t *imp,
1.1576 + pixman_op_t op,
1.1577 + comp4_t * dest,
1.1578 + const comp4_t * src,
1.1579 + const comp4_t * mask,
1.1580 + int width)
1.1581 +{
1.1582 + combine_conjoint_general_u (dest, src, mask, width, COMBINE_XOR);
1.1583 +}
1.1584 +
1.1585 +/************************************************************************/
1.1586 +/*********************** Per Channel functions **************************/
1.1587 +/************************************************************************/
1.1588 +
1.1589 +static void
1.1590 +combine_clear_ca (pixman_implementation_t *imp,
1.1591 + pixman_op_t op,
1.1592 + comp4_t * dest,
1.1593 + const comp4_t * src,
1.1594 + const comp4_t * mask,
1.1595 + int width)
1.1596 +{
1.1597 + memset (dest, 0, width * sizeof(comp4_t));
1.1598 +}
1.1599 +
1.1600 +static void
1.1601 +combine_src_ca (pixman_implementation_t *imp,
1.1602 + pixman_op_t op,
1.1603 + comp4_t * dest,
1.1604 + const comp4_t * src,
1.1605 + const comp4_t * mask,
1.1606 + int width)
1.1607 +{
1.1608 + int i;
1.1609 +
1.1610 + for (i = 0; i < width; ++i)
1.1611 + {
1.1612 + comp4_t s = *(src + i);
1.1613 + comp4_t m = *(mask + i);
1.1614 +
1.1615 + combine_mask_value_ca (&s, &m);
1.1616 +
1.1617 + *(dest + i) = s;
1.1618 + }
1.1619 +}
1.1620 +
1.1621 +static void
1.1622 +combine_over_ca (pixman_implementation_t *imp,
1.1623 + pixman_op_t op,
1.1624 + comp4_t * dest,
1.1625 + const comp4_t * src,
1.1626 + const comp4_t * mask,
1.1627 + int width)
1.1628 +{
1.1629 + int i;
1.1630 +
1.1631 + for (i = 0; i < width; ++i)
1.1632 + {
1.1633 + comp4_t s = *(src + i);
1.1634 + comp4_t m = *(mask + i);
1.1635 + comp4_t a;
1.1636 +
1.1637 + combine_mask_ca (&s, &m);
1.1638 +
1.1639 + a = ~m;
1.1640 + if (a)
1.1641 + {
1.1642 + comp4_t d = *(dest + i);
1.1643 + UNcx4_MUL_UNcx4_ADD_UNcx4 (d, a, s);
1.1644 + s = d;
1.1645 + }
1.1646 +
1.1647 + *(dest + i) = s;
1.1648 + }
1.1649 +}
1.1650 +
1.1651 +static void
1.1652 +combine_over_reverse_ca (pixman_implementation_t *imp,
1.1653 + pixman_op_t op,
1.1654 + comp4_t * dest,
1.1655 + const comp4_t * src,
1.1656 + const comp4_t * mask,
1.1657 + int width)
1.1658 +{
1.1659 + int i;
1.1660 +
1.1661 + for (i = 0; i < width; ++i)
1.1662 + {
1.1663 + comp4_t d = *(dest + i);
1.1664 + comp4_t a = ~d >> A_SHIFT;
1.1665 +
1.1666 + if (a)
1.1667 + {
1.1668 + comp4_t s = *(src + i);
1.1669 + comp4_t m = *(mask + i);
1.1670 +
1.1671 + UNcx4_MUL_UNcx4 (s, m);
1.1672 + UNcx4_MUL_UNc_ADD_UNcx4 (s, a, d);
1.1673 +
1.1674 + *(dest + i) = s;
1.1675 + }
1.1676 + }
1.1677 +}
1.1678 +
1.1679 +static void
1.1680 +combine_in_ca (pixman_implementation_t *imp,
1.1681 + pixman_op_t op,
1.1682 + comp4_t * dest,
1.1683 + const comp4_t * src,
1.1684 + const comp4_t * mask,
1.1685 + int width)
1.1686 +{
1.1687 + int i;
1.1688 +
1.1689 + for (i = 0; i < width; ++i)
1.1690 + {
1.1691 + comp4_t d = *(dest + i);
1.1692 + comp2_t a = d >> A_SHIFT;
1.1693 + comp4_t s = 0;
1.1694 +
1.1695 + if (a)
1.1696 + {
1.1697 + comp4_t m = *(mask + i);
1.1698 +
1.1699 + s = *(src + i);
1.1700 + combine_mask_value_ca (&s, &m);
1.1701 +
1.1702 + if (a != MASK)
1.1703 + UNcx4_MUL_UNc (s, a);
1.1704 + }
1.1705 +
1.1706 + *(dest + i) = s;
1.1707 + }
1.1708 +}
1.1709 +
1.1710 +static void
1.1711 +combine_in_reverse_ca (pixman_implementation_t *imp,
1.1712 + pixman_op_t op,
1.1713 + comp4_t * dest,
1.1714 + const comp4_t * src,
1.1715 + const comp4_t * mask,
1.1716 + int width)
1.1717 +{
1.1718 + int i;
1.1719 +
1.1720 + for (i = 0; i < width; ++i)
1.1721 + {
1.1722 + comp4_t s = *(src + i);
1.1723 + comp4_t m = *(mask + i);
1.1724 + comp4_t a;
1.1725 +
1.1726 + combine_mask_alpha_ca (&s, &m);
1.1727 +
1.1728 + a = m;
1.1729 + if (a != ~0)
1.1730 + {
1.1731 + comp4_t d = 0;
1.1732 +
1.1733 + if (a)
1.1734 + {
1.1735 + d = *(dest + i);
1.1736 + UNcx4_MUL_UNcx4 (d, a);
1.1737 + }
1.1738 +
1.1739 + *(dest + i) = d;
1.1740 + }
1.1741 + }
1.1742 +}
1.1743 +
1.1744 +static void
1.1745 +combine_out_ca (pixman_implementation_t *imp,
1.1746 + pixman_op_t op,
1.1747 + comp4_t * dest,
1.1748 + const comp4_t * src,
1.1749 + const comp4_t * mask,
1.1750 + int width)
1.1751 +{
1.1752 + int i;
1.1753 +
1.1754 + for (i = 0; i < width; ++i)
1.1755 + {
1.1756 + comp4_t d = *(dest + i);
1.1757 + comp2_t a = ~d >> A_SHIFT;
1.1758 + comp4_t s = 0;
1.1759 +
1.1760 + if (a)
1.1761 + {
1.1762 + comp4_t m = *(mask + i);
1.1763 +
1.1764 + s = *(src + i);
1.1765 + combine_mask_value_ca (&s, &m);
1.1766 +
1.1767 + if (a != MASK)
1.1768 + UNcx4_MUL_UNc (s, a);
1.1769 + }
1.1770 +
1.1771 + *(dest + i) = s;
1.1772 + }
1.1773 +}
1.1774 +
1.1775 +static void
1.1776 +combine_out_reverse_ca (pixman_implementation_t *imp,
1.1777 + pixman_op_t op,
1.1778 + comp4_t * dest,
1.1779 + const comp4_t * src,
1.1780 + const comp4_t * mask,
1.1781 + int width)
1.1782 +{
1.1783 + int i;
1.1784 +
1.1785 + for (i = 0; i < width; ++i)
1.1786 + {
1.1787 + comp4_t s = *(src + i);
1.1788 + comp4_t m = *(mask + i);
1.1789 + comp4_t a;
1.1790 +
1.1791 + combine_mask_alpha_ca (&s, &m);
1.1792 +
1.1793 + a = ~m;
1.1794 + if (a != ~0)
1.1795 + {
1.1796 + comp4_t d = 0;
1.1797 +
1.1798 + if (a)
1.1799 + {
1.1800 + d = *(dest + i);
1.1801 + UNcx4_MUL_UNcx4 (d, a);
1.1802 + }
1.1803 +
1.1804 + *(dest + i) = d;
1.1805 + }
1.1806 + }
1.1807 +}
1.1808 +
1.1809 +static void
1.1810 +combine_atop_ca (pixman_implementation_t *imp,
1.1811 + pixman_op_t op,
1.1812 + comp4_t * dest,
1.1813 + const comp4_t * src,
1.1814 + const comp4_t * mask,
1.1815 + int width)
1.1816 +{
1.1817 + int i;
1.1818 +
1.1819 + for (i = 0; i < width; ++i)
1.1820 + {
1.1821 + comp4_t d = *(dest + i);
1.1822 + comp4_t s = *(src + i);
1.1823 + comp4_t m = *(mask + i);
1.1824 + comp4_t ad;
1.1825 + comp2_t as = d >> A_SHIFT;
1.1826 +
1.1827 + combine_mask_ca (&s, &m);
1.1828 +
1.1829 + ad = ~m;
1.1830 +
1.1831 + UNcx4_MUL_UNcx4_ADD_UNcx4_MUL_UNc (d, ad, s, as);
1.1832 +
1.1833 + *(dest + i) = d;
1.1834 + }
1.1835 +}
1.1836 +
1.1837 +static void
1.1838 +combine_atop_reverse_ca (pixman_implementation_t *imp,
1.1839 + pixman_op_t op,
1.1840 + comp4_t * dest,
1.1841 + const comp4_t * src,
1.1842 + const comp4_t * mask,
1.1843 + int width)
1.1844 +{
1.1845 + int i;
1.1846 +
1.1847 + for (i = 0; i < width; ++i)
1.1848 + {
1.1849 + comp4_t d = *(dest + i);
1.1850 + comp4_t s = *(src + i);
1.1851 + comp4_t m = *(mask + i);
1.1852 + comp4_t ad;
1.1853 + comp2_t as = ~d >> A_SHIFT;
1.1854 +
1.1855 + combine_mask_ca (&s, &m);
1.1856 +
1.1857 + ad = m;
1.1858 +
1.1859 + UNcx4_MUL_UNcx4_ADD_UNcx4_MUL_UNc (d, ad, s, as);
1.1860 +
1.1861 + *(dest + i) = d;
1.1862 + }
1.1863 +}
1.1864 +
1.1865 +static void
1.1866 +combine_xor_ca (pixman_implementation_t *imp,
1.1867 + pixman_op_t op,
1.1868 + comp4_t * dest,
1.1869 + const comp4_t * src,
1.1870 + const comp4_t * mask,
1.1871 + int width)
1.1872 +{
1.1873 + int i;
1.1874 +
1.1875 + for (i = 0; i < width; ++i)
1.1876 + {
1.1877 + comp4_t d = *(dest + i);
1.1878 + comp4_t s = *(src + i);
1.1879 + comp4_t m = *(mask + i);
1.1880 + comp4_t ad;
1.1881 + comp2_t as = ~d >> A_SHIFT;
1.1882 +
1.1883 + combine_mask_ca (&s, &m);
1.1884 +
1.1885 + ad = ~m;
1.1886 +
1.1887 + UNcx4_MUL_UNcx4_ADD_UNcx4_MUL_UNc (d, ad, s, as);
1.1888 +
1.1889 + *(dest + i) = d;
1.1890 + }
1.1891 +}
1.1892 +
1.1893 +static void
1.1894 +combine_add_ca (pixman_implementation_t *imp,
1.1895 + pixman_op_t op,
1.1896 + comp4_t * dest,
1.1897 + const comp4_t * src,
1.1898 + const comp4_t * mask,
1.1899 + int width)
1.1900 +{
1.1901 + int i;
1.1902 +
1.1903 + for (i = 0; i < width; ++i)
1.1904 + {
1.1905 + comp4_t s = *(src + i);
1.1906 + comp4_t m = *(mask + i);
1.1907 + comp4_t d = *(dest + i);
1.1908 +
1.1909 + combine_mask_value_ca (&s, &m);
1.1910 +
1.1911 + UNcx4_ADD_UNcx4 (d, s);
1.1912 +
1.1913 + *(dest + i) = d;
1.1914 + }
1.1915 +}
1.1916 +
1.1917 +static void
1.1918 +combine_saturate_ca (pixman_implementation_t *imp,
1.1919 + pixman_op_t op,
1.1920 + comp4_t * dest,
1.1921 + const comp4_t * src,
1.1922 + const comp4_t * mask,
1.1923 + int width)
1.1924 +{
1.1925 + int i;
1.1926 +
1.1927 + for (i = 0; i < width; ++i)
1.1928 + {
1.1929 + comp4_t s, d;
1.1930 + comp2_t sa, sr, sg, sb, da;
1.1931 + comp2_t t, u, v;
1.1932 + comp4_t m, n, o, p;
1.1933 +
1.1934 + d = *(dest + i);
1.1935 + s = *(src + i);
1.1936 + m = *(mask + i);
1.1937 +
1.1938 + combine_mask_ca (&s, &m);
1.1939 +
1.1940 + sa = (m >> A_SHIFT);
1.1941 + sr = (m >> R_SHIFT) & MASK;
1.1942 + sg = (m >> G_SHIFT) & MASK;
1.1943 + sb = m & MASK;
1.1944 + da = ~d >> A_SHIFT;
1.1945 +
1.1946 + if (sb <= da)
1.1947 + m = ADD (s, d, 0, t);
1.1948 + else
1.1949 + m = GENERIC (s, d, 0, (da << G_SHIFT) / sb, MASK, t, u, v);
1.1950 +
1.1951 + if (sg <= da)
1.1952 + n = ADD (s, d, G_SHIFT, t);
1.1953 + else
1.1954 + n = GENERIC (s, d, G_SHIFT, (da << G_SHIFT) / sg, MASK, t, u, v);
1.1955 +
1.1956 + if (sr <= da)
1.1957 + o = ADD (s, d, R_SHIFT, t);
1.1958 + else
1.1959 + o = GENERIC (s, d, R_SHIFT, (da << G_SHIFT) / sr, MASK, t, u, v);
1.1960 +
1.1961 + if (sa <= da)
1.1962 + p = ADD (s, d, A_SHIFT, t);
1.1963 + else
1.1964 + p = GENERIC (s, d, A_SHIFT, (da << G_SHIFT) / sa, MASK, t, u, v);
1.1965 +
1.1966 + *(dest + i) = m | n | o | p;
1.1967 + }
1.1968 +}
1.1969 +
1.1970 +static void
1.1971 +combine_disjoint_general_ca (comp4_t * dest,
1.1972 + const comp4_t *src,
1.1973 + const comp4_t *mask,
1.1974 + int width,
1.1975 + comp1_t combine)
1.1976 +{
1.1977 + int i;
1.1978 +
1.1979 + for (i = 0; i < width; ++i)
1.1980 + {
1.1981 + comp4_t s, d;
1.1982 + comp4_t m, n, o, p;
1.1983 + comp4_t Fa, Fb;
1.1984 + comp2_t t, u, v;
1.1985 + comp4_t sa;
1.1986 + comp1_t da;
1.1987 +
1.1988 + s = *(src + i);
1.1989 + m = *(mask + i);
1.1990 + d = *(dest + i);
1.1991 + da = d >> A_SHIFT;
1.1992 +
1.1993 + combine_mask_ca (&s, &m);
1.1994 +
1.1995 + sa = m;
1.1996 +
1.1997 + switch (combine & COMBINE_A)
1.1998 + {
1.1999 + default:
1.2000 + Fa = 0;
1.2001 + break;
1.2002 +
1.2003 + case COMBINE_A_OUT:
1.2004 + m = (comp4_t)combine_disjoint_out_part ((comp1_t) (sa >> 0), da);
1.2005 + n = (comp4_t)combine_disjoint_out_part ((comp1_t) (sa >> G_SHIFT), da) << G_SHIFT;
1.2006 + o = (comp4_t)combine_disjoint_out_part ((comp1_t) (sa >> R_SHIFT), da) << R_SHIFT;
1.2007 + p = (comp4_t)combine_disjoint_out_part ((comp1_t) (sa >> A_SHIFT), da) << A_SHIFT;
1.2008 + Fa = m | n | o | p;
1.2009 + break;
1.2010 +
1.2011 + case COMBINE_A_IN:
1.2012 + m = (comp4_t)combine_disjoint_in_part ((comp1_t) (sa >> 0), da);
1.2013 + n = (comp4_t)combine_disjoint_in_part ((comp1_t) (sa >> G_SHIFT), da) << G_SHIFT;
1.2014 + o = (comp4_t)combine_disjoint_in_part ((comp1_t) (sa >> R_SHIFT), da) << R_SHIFT;
1.2015 + p = (comp4_t)combine_disjoint_in_part ((comp1_t) (sa >> A_SHIFT), da) << A_SHIFT;
1.2016 + Fa = m | n | o | p;
1.2017 + break;
1.2018 +
1.2019 + case COMBINE_A:
1.2020 + Fa = ~0;
1.2021 + break;
1.2022 + }
1.2023 +
1.2024 + switch (combine & COMBINE_B)
1.2025 + {
1.2026 + default:
1.2027 + Fb = 0;
1.2028 + break;
1.2029 +
1.2030 + case COMBINE_B_OUT:
1.2031 + m = (comp4_t)combine_disjoint_out_part (da, (comp1_t) (sa >> 0));
1.2032 + n = (comp4_t)combine_disjoint_out_part (da, (comp1_t) (sa >> G_SHIFT)) << G_SHIFT;
1.2033 + o = (comp4_t)combine_disjoint_out_part (da, (comp1_t) (sa >> R_SHIFT)) << R_SHIFT;
1.2034 + p = (comp4_t)combine_disjoint_out_part (da, (comp1_t) (sa >> A_SHIFT)) << A_SHIFT;
1.2035 + Fb = m | n | o | p;
1.2036 + break;
1.2037 +
1.2038 + case COMBINE_B_IN:
1.2039 + m = (comp4_t)combine_disjoint_in_part (da, (comp1_t) (sa >> 0));
1.2040 + n = (comp4_t)combine_disjoint_in_part (da, (comp1_t) (sa >> G_SHIFT)) << G_SHIFT;
1.2041 + o = (comp4_t)combine_disjoint_in_part (da, (comp1_t) (sa >> R_SHIFT)) << R_SHIFT;
1.2042 + p = (comp4_t)combine_disjoint_in_part (da, (comp1_t) (sa >> A_SHIFT)) << A_SHIFT;
1.2043 + Fb = m | n | o | p;
1.2044 + break;
1.2045 +
1.2046 + case COMBINE_B:
1.2047 + Fb = ~0;
1.2048 + break;
1.2049 + }
1.2050 + m = GENERIC (s, d, 0, GET_COMP (Fa, 0), GET_COMP (Fb, 0), t, u, v);
1.2051 + n = GENERIC (s, d, G_SHIFT, GET_COMP (Fa, G_SHIFT), GET_COMP (Fb, G_SHIFT), t, u, v);
1.2052 + o = GENERIC (s, d, R_SHIFT, GET_COMP (Fa, R_SHIFT), GET_COMP (Fb, R_SHIFT), t, u, v);
1.2053 + p = GENERIC (s, d, A_SHIFT, GET_COMP (Fa, A_SHIFT), GET_COMP (Fb, A_SHIFT), t, u, v);
1.2054 +
1.2055 + s = m | n | o | p;
1.2056 +
1.2057 + *(dest + i) = s;
1.2058 + }
1.2059 +}
1.2060 +
1.2061 +static void
1.2062 +combine_disjoint_over_ca (pixman_implementation_t *imp,
1.2063 + pixman_op_t op,
1.2064 + comp4_t * dest,
1.2065 + const comp4_t * src,
1.2066 + const comp4_t * mask,
1.2067 + int width)
1.2068 +{
1.2069 + combine_disjoint_general_ca (dest, src, mask, width, COMBINE_A_OVER);
1.2070 +}
1.2071 +
1.2072 +static void
1.2073 +combine_disjoint_in_ca (pixman_implementation_t *imp,
1.2074 + pixman_op_t op,
1.2075 + comp4_t * dest,
1.2076 + const comp4_t * src,
1.2077 + const comp4_t * mask,
1.2078 + int width)
1.2079 +{
1.2080 + combine_disjoint_general_ca (dest, src, mask, width, COMBINE_A_IN);
1.2081 +}
1.2082 +
1.2083 +static void
1.2084 +combine_disjoint_in_reverse_ca (pixman_implementation_t *imp,
1.2085 + pixman_op_t op,
1.2086 + comp4_t * dest,
1.2087 + const comp4_t * src,
1.2088 + const comp4_t * mask,
1.2089 + int width)
1.2090 +{
1.2091 + combine_disjoint_general_ca (dest, src, mask, width, COMBINE_B_IN);
1.2092 +}
1.2093 +
1.2094 +static void
1.2095 +combine_disjoint_out_ca (pixman_implementation_t *imp,
1.2096 + pixman_op_t op,
1.2097 + comp4_t * dest,
1.2098 + const comp4_t * src,
1.2099 + const comp4_t * mask,
1.2100 + int width)
1.2101 +{
1.2102 + combine_disjoint_general_ca (dest, src, mask, width, COMBINE_A_OUT);
1.2103 +}
1.2104 +
1.2105 +static void
1.2106 +combine_disjoint_out_reverse_ca (pixman_implementation_t *imp,
1.2107 + pixman_op_t op,
1.2108 + comp4_t * dest,
1.2109 + const comp4_t * src,
1.2110 + const comp4_t * mask,
1.2111 + int width)
1.2112 +{
1.2113 + combine_disjoint_general_ca (dest, src, mask, width, COMBINE_B_OUT);
1.2114 +}
1.2115 +
1.2116 +static void
1.2117 +combine_disjoint_atop_ca (pixman_implementation_t *imp,
1.2118 + pixman_op_t op,
1.2119 + comp4_t * dest,
1.2120 + const comp4_t * src,
1.2121 + const comp4_t * mask,
1.2122 + int width)
1.2123 +{
1.2124 + combine_disjoint_general_ca (dest, src, mask, width, COMBINE_A_ATOP);
1.2125 +}
1.2126 +
1.2127 +static void
1.2128 +combine_disjoint_atop_reverse_ca (pixman_implementation_t *imp,
1.2129 + pixman_op_t op,
1.2130 + comp4_t * dest,
1.2131 + const comp4_t * src,
1.2132 + const comp4_t * mask,
1.2133 + int width)
1.2134 +{
1.2135 + combine_disjoint_general_ca (dest, src, mask, width, COMBINE_B_ATOP);
1.2136 +}
1.2137 +
1.2138 +static void
1.2139 +combine_disjoint_xor_ca (pixman_implementation_t *imp,
1.2140 + pixman_op_t op,
1.2141 + comp4_t * dest,
1.2142 + const comp4_t * src,
1.2143 + const comp4_t * mask,
1.2144 + int width)
1.2145 +{
1.2146 + combine_disjoint_general_ca (dest, src, mask, width, COMBINE_XOR);
1.2147 +}
1.2148 +
1.2149 +static void
1.2150 +combine_conjoint_general_ca (comp4_t * dest,
1.2151 + const comp4_t *src,
1.2152 + const comp4_t *mask,
1.2153 + int width,
1.2154 + comp1_t combine)
1.2155 +{
1.2156 + int i;
1.2157 +
1.2158 + for (i = 0; i < width; ++i)
1.2159 + {
1.2160 + comp4_t s, d;
1.2161 + comp4_t m, n, o, p;
1.2162 + comp4_t Fa, Fb;
1.2163 + comp2_t t, u, v;
1.2164 + comp4_t sa;
1.2165 + comp1_t da;
1.2166 +
1.2167 + s = *(src + i);
1.2168 + m = *(mask + i);
1.2169 + d = *(dest + i);
1.2170 + da = d >> A_SHIFT;
1.2171 +
1.2172 + combine_mask_ca (&s, &m);
1.2173 +
1.2174 + sa = m;
1.2175 +
1.2176 + switch (combine & COMBINE_A)
1.2177 + {
1.2178 + default:
1.2179 + Fa = 0;
1.2180 + break;
1.2181 +
1.2182 + case COMBINE_A_OUT:
1.2183 + m = (comp4_t)combine_conjoint_out_part ((comp1_t) (sa >> 0), da);
1.2184 + n = (comp4_t)combine_conjoint_out_part ((comp1_t) (sa >> G_SHIFT), da) << G_SHIFT;
1.2185 + o = (comp4_t)combine_conjoint_out_part ((comp1_t) (sa >> R_SHIFT), da) << R_SHIFT;
1.2186 + p = (comp4_t)combine_conjoint_out_part ((comp1_t) (sa >> A_SHIFT), da) << A_SHIFT;
1.2187 + Fa = m | n | o | p;
1.2188 + break;
1.2189 +
1.2190 + case COMBINE_A_IN:
1.2191 + m = (comp4_t)combine_conjoint_in_part ((comp1_t) (sa >> 0), da);
1.2192 + n = (comp4_t)combine_conjoint_in_part ((comp1_t) (sa >> G_SHIFT), da) << G_SHIFT;
1.2193 + o = (comp4_t)combine_conjoint_in_part ((comp1_t) (sa >> R_SHIFT), da) << R_SHIFT;
1.2194 + p = (comp4_t)combine_conjoint_in_part ((comp1_t) (sa >> A_SHIFT), da) << A_SHIFT;
1.2195 + Fa = m | n | o | p;
1.2196 + break;
1.2197 +
1.2198 + case COMBINE_A:
1.2199 + Fa = ~0;
1.2200 + break;
1.2201 + }
1.2202 +
1.2203 + switch (combine & COMBINE_B)
1.2204 + {
1.2205 + default:
1.2206 + Fb = 0;
1.2207 + break;
1.2208 +
1.2209 + case COMBINE_B_OUT:
1.2210 + m = (comp4_t)combine_conjoint_out_part (da, (comp1_t) (sa >> 0));
1.2211 + n = (comp4_t)combine_conjoint_out_part (da, (comp1_t) (sa >> G_SHIFT)) << G_SHIFT;
1.2212 + o = (comp4_t)combine_conjoint_out_part (da, (comp1_t) (sa >> R_SHIFT)) << R_SHIFT;
1.2213 + p = (comp4_t)combine_conjoint_out_part (da, (comp1_t) (sa >> A_SHIFT)) << A_SHIFT;
1.2214 + Fb = m | n | o | p;
1.2215 + break;
1.2216 +
1.2217 + case COMBINE_B_IN:
1.2218 + m = (comp4_t)combine_conjoint_in_part (da, (comp1_t) (sa >> 0));
1.2219 + n = (comp4_t)combine_conjoint_in_part (da, (comp1_t) (sa >> G_SHIFT)) << G_SHIFT;
1.2220 + o = (comp4_t)combine_conjoint_in_part (da, (comp1_t) (sa >> R_SHIFT)) << R_SHIFT;
1.2221 + p = (comp4_t)combine_conjoint_in_part (da, (comp1_t) (sa >> A_SHIFT)) << A_SHIFT;
1.2222 + Fb = m | n | o | p;
1.2223 + break;
1.2224 +
1.2225 + case COMBINE_B:
1.2226 + Fb = ~0;
1.2227 + break;
1.2228 + }
1.2229 + m = GENERIC (s, d, 0, GET_COMP (Fa, 0), GET_COMP (Fb, 0), t, u, v);
1.2230 + n = GENERIC (s, d, G_SHIFT, GET_COMP (Fa, G_SHIFT), GET_COMP (Fb, G_SHIFT), t, u, v);
1.2231 + o = GENERIC (s, d, R_SHIFT, GET_COMP (Fa, R_SHIFT), GET_COMP (Fb, R_SHIFT), t, u, v);
1.2232 + p = GENERIC (s, d, A_SHIFT, GET_COMP (Fa, A_SHIFT), GET_COMP (Fb, A_SHIFT), t, u, v);
1.2233 +
1.2234 + s = m | n | o | p;
1.2235 +
1.2236 + *(dest + i) = s;
1.2237 + }
1.2238 +}
1.2239 +
1.2240 +static void
1.2241 +combine_conjoint_over_ca (pixman_implementation_t *imp,
1.2242 + pixman_op_t op,
1.2243 + comp4_t * dest,
1.2244 + const comp4_t * src,
1.2245 + const comp4_t * mask,
1.2246 + int width)
1.2247 +{
1.2248 + combine_conjoint_general_ca (dest, src, mask, width, COMBINE_A_OVER);
1.2249 +}
1.2250 +
1.2251 +static void
1.2252 +combine_conjoint_over_reverse_ca (pixman_implementation_t *imp,
1.2253 + pixman_op_t op,
1.2254 + comp4_t * dest,
1.2255 + const comp4_t * src,
1.2256 + const comp4_t * mask,
1.2257 + int width)
1.2258 +{
1.2259 + combine_conjoint_general_ca (dest, src, mask, width, COMBINE_B_OVER);
1.2260 +}
1.2261 +
1.2262 +static void
1.2263 +combine_conjoint_in_ca (pixman_implementation_t *imp,
1.2264 + pixman_op_t op,
1.2265 + comp4_t * dest,
1.2266 + const comp4_t * src,
1.2267 + const comp4_t * mask,
1.2268 + int width)
1.2269 +{
1.2270 + combine_conjoint_general_ca (dest, src, mask, width, COMBINE_A_IN);
1.2271 +}
1.2272 +
1.2273 +static void
1.2274 +combine_conjoint_in_reverse_ca (pixman_implementation_t *imp,
1.2275 + pixman_op_t op,
1.2276 + comp4_t * dest,
1.2277 + const comp4_t * src,
1.2278 + const comp4_t * mask,
1.2279 + int width)
1.2280 +{
1.2281 + combine_conjoint_general_ca (dest, src, mask, width, COMBINE_B_IN);
1.2282 +}
1.2283 +
1.2284 +static void
1.2285 +combine_conjoint_out_ca (pixman_implementation_t *imp,
1.2286 + pixman_op_t op,
1.2287 + comp4_t * dest,
1.2288 + const comp4_t * src,
1.2289 + const comp4_t * mask,
1.2290 + int width)
1.2291 +{
1.2292 + combine_conjoint_general_ca (dest, src, mask, width, COMBINE_A_OUT);
1.2293 +}
1.2294 +
1.2295 +static void
1.2296 +combine_conjoint_out_reverse_ca (pixman_implementation_t *imp,
1.2297 + pixman_op_t op,
1.2298 + comp4_t * dest,
1.2299 + const comp4_t * src,
1.2300 + const comp4_t * mask,
1.2301 + int width)
1.2302 +{
1.2303 + combine_conjoint_general_ca (dest, src, mask, width, COMBINE_B_OUT);
1.2304 +}
1.2305 +
1.2306 +static void
1.2307 +combine_conjoint_atop_ca (pixman_implementation_t *imp,
1.2308 + pixman_op_t op,
1.2309 + comp4_t * dest,
1.2310 + const comp4_t * src,
1.2311 + const comp4_t * mask,
1.2312 + int width)
1.2313 +{
1.2314 + combine_conjoint_general_ca (dest, src, mask, width, COMBINE_A_ATOP);
1.2315 +}
1.2316 +
1.2317 +static void
1.2318 +combine_conjoint_atop_reverse_ca (pixman_implementation_t *imp,
1.2319 + pixman_op_t op,
1.2320 + comp4_t * dest,
1.2321 + const comp4_t * src,
1.2322 + const comp4_t * mask,
1.2323 + int width)
1.2324 +{
1.2325 + combine_conjoint_general_ca (dest, src, mask, width, COMBINE_B_ATOP);
1.2326 +}
1.2327 +
1.2328 +static void
1.2329 +combine_conjoint_xor_ca (pixman_implementation_t *imp,
1.2330 + pixman_op_t op,
1.2331 + comp4_t * dest,
1.2332 + const comp4_t * src,
1.2333 + const comp4_t * mask,
1.2334 + int width)
1.2335 +{
1.2336 + combine_conjoint_general_ca (dest, src, mask, width, COMBINE_XOR);
1.2337 +}
1.2338 +
1.2339 +void
1.2340 +_pixman_setup_combiner_functions_width (pixman_implementation_t *imp)
1.2341 +{
1.2342 + /* Unified alpha */
1.2343 + imp->combine_width[PIXMAN_OP_CLEAR] = combine_clear;
1.2344 + imp->combine_width[PIXMAN_OP_SRC] = combine_src_u;
1.2345 + imp->combine_width[PIXMAN_OP_DST] = combine_dst;
1.2346 + imp->combine_width[PIXMAN_OP_OVER] = combine_over_u;
1.2347 + imp->combine_width[PIXMAN_OP_OVER_REVERSE] = combine_over_reverse_u;
1.2348 + imp->combine_width[PIXMAN_OP_IN] = combine_in_u;
1.2349 + imp->combine_width[PIXMAN_OP_IN_REVERSE] = combine_in_reverse_u;
1.2350 + imp->combine_width[PIXMAN_OP_OUT] = combine_out_u;
1.2351 + imp->combine_width[PIXMAN_OP_OUT_REVERSE] = combine_out_reverse_u;
1.2352 + imp->combine_width[PIXMAN_OP_ATOP] = combine_atop_u;
1.2353 + imp->combine_width[PIXMAN_OP_ATOP_REVERSE] = combine_atop_reverse_u;
1.2354 + imp->combine_width[PIXMAN_OP_XOR] = combine_xor_u;
1.2355 + imp->combine_width[PIXMAN_OP_ADD] = combine_add_u;
1.2356 + imp->combine_width[PIXMAN_OP_SATURATE] = combine_saturate_u;
1.2357 +
1.2358 + /* Disjoint, unified */
1.2359 + imp->combine_width[PIXMAN_OP_DISJOINT_CLEAR] = combine_clear;
1.2360 + imp->combine_width[PIXMAN_OP_DISJOINT_SRC] = combine_src_u;
1.2361 + imp->combine_width[PIXMAN_OP_DISJOINT_DST] = combine_dst;
1.2362 + imp->combine_width[PIXMAN_OP_DISJOINT_OVER] = combine_disjoint_over_u;
1.2363 + imp->combine_width[PIXMAN_OP_DISJOINT_OVER_REVERSE] = combine_saturate_u;
1.2364 + imp->combine_width[PIXMAN_OP_DISJOINT_IN] = combine_disjoint_in_u;
1.2365 + imp->combine_width[PIXMAN_OP_DISJOINT_IN_REVERSE] = combine_disjoint_in_reverse_u;
1.2366 + imp->combine_width[PIXMAN_OP_DISJOINT_OUT] = combine_disjoint_out_u;
1.2367 + imp->combine_width[PIXMAN_OP_DISJOINT_OUT_REVERSE] = combine_disjoint_out_reverse_u;
1.2368 + imp->combine_width[PIXMAN_OP_DISJOINT_ATOP] = combine_disjoint_atop_u;
1.2369 + imp->combine_width[PIXMAN_OP_DISJOINT_ATOP_REVERSE] = combine_disjoint_atop_reverse_u;
1.2370 + imp->combine_width[PIXMAN_OP_DISJOINT_XOR] = combine_disjoint_xor_u;
1.2371 +
1.2372 + /* Conjoint, unified */
1.2373 + imp->combine_width[PIXMAN_OP_CONJOINT_CLEAR] = combine_clear;
1.2374 + imp->combine_width[PIXMAN_OP_CONJOINT_SRC] = combine_src_u;
1.2375 + imp->combine_width[PIXMAN_OP_CONJOINT_DST] = combine_dst;
1.2376 + imp->combine_width[PIXMAN_OP_CONJOINT_OVER] = combine_conjoint_over_u;
1.2377 + imp->combine_width[PIXMAN_OP_CONJOINT_OVER_REVERSE] = combine_conjoint_over_reverse_u;
1.2378 + imp->combine_width[PIXMAN_OP_CONJOINT_IN] = combine_conjoint_in_u;
1.2379 + imp->combine_width[PIXMAN_OP_CONJOINT_IN_REVERSE] = combine_conjoint_in_reverse_u;
1.2380 + imp->combine_width[PIXMAN_OP_CONJOINT_OUT] = combine_conjoint_out_u;
1.2381 + imp->combine_width[PIXMAN_OP_CONJOINT_OUT_REVERSE] = combine_conjoint_out_reverse_u;
1.2382 + imp->combine_width[PIXMAN_OP_CONJOINT_ATOP] = combine_conjoint_atop_u;
1.2383 + imp->combine_width[PIXMAN_OP_CONJOINT_ATOP_REVERSE] = combine_conjoint_atop_reverse_u;
1.2384 + imp->combine_width[PIXMAN_OP_CONJOINT_XOR] = combine_conjoint_xor_u;
1.2385 +
1.2386 + imp->combine_width[PIXMAN_OP_MULTIPLY] = combine_multiply_u;
1.2387 + imp->combine_width[PIXMAN_OP_SCREEN] = combine_screen_u;
1.2388 + imp->combine_width[PIXMAN_OP_OVERLAY] = combine_overlay_u;
1.2389 + imp->combine_width[PIXMAN_OP_DARKEN] = combine_darken_u;
1.2390 + imp->combine_width[PIXMAN_OP_LIGHTEN] = combine_lighten_u;
1.2391 + imp->combine_width[PIXMAN_OP_COLOR_DODGE] = combine_color_dodge_u;
1.2392 + imp->combine_width[PIXMAN_OP_COLOR_BURN] = combine_color_burn_u;
1.2393 + imp->combine_width[PIXMAN_OP_HARD_LIGHT] = combine_hard_light_u;
1.2394 + imp->combine_width[PIXMAN_OP_SOFT_LIGHT] = combine_soft_light_u;
1.2395 + imp->combine_width[PIXMAN_OP_DIFFERENCE] = combine_difference_u;
1.2396 + imp->combine_width[PIXMAN_OP_EXCLUSION] = combine_exclusion_u;
1.2397 + imp->combine_width[PIXMAN_OP_HSL_HUE] = combine_hsl_hue_u;
1.2398 + imp->combine_width[PIXMAN_OP_HSL_SATURATION] = combine_hsl_saturation_u;
1.2399 + imp->combine_width[PIXMAN_OP_HSL_COLOR] = combine_hsl_color_u;
1.2400 + imp->combine_width[PIXMAN_OP_HSL_LUMINOSITY] = combine_hsl_luminosity_u;
1.2401 +
1.2402 + /* Component alpha combiners */
1.2403 + imp->combine_width_ca[PIXMAN_OP_CLEAR] = combine_clear_ca;
1.2404 + imp->combine_width_ca[PIXMAN_OP_SRC] = combine_src_ca;
1.2405 + /* dest */
1.2406 + imp->combine_width_ca[PIXMAN_OP_OVER] = combine_over_ca;
1.2407 + imp->combine_width_ca[PIXMAN_OP_OVER_REVERSE] = combine_over_reverse_ca;
1.2408 + imp->combine_width_ca[PIXMAN_OP_IN] = combine_in_ca;
1.2409 + imp->combine_width_ca[PIXMAN_OP_IN_REVERSE] = combine_in_reverse_ca;
1.2410 + imp->combine_width_ca[PIXMAN_OP_OUT] = combine_out_ca;
1.2411 + imp->combine_width_ca[PIXMAN_OP_OUT_REVERSE] = combine_out_reverse_ca;
1.2412 + imp->combine_width_ca[PIXMAN_OP_ATOP] = combine_atop_ca;
1.2413 + imp->combine_width_ca[PIXMAN_OP_ATOP_REVERSE] = combine_atop_reverse_ca;
1.2414 + imp->combine_width_ca[PIXMAN_OP_XOR] = combine_xor_ca;
1.2415 + imp->combine_width_ca[PIXMAN_OP_ADD] = combine_add_ca;
1.2416 + imp->combine_width_ca[PIXMAN_OP_SATURATE] = combine_saturate_ca;
1.2417 +
1.2418 + /* Disjoint CA */
1.2419 + imp->combine_width_ca[PIXMAN_OP_DISJOINT_CLEAR] = combine_clear_ca;
1.2420 + imp->combine_width_ca[PIXMAN_OP_DISJOINT_SRC] = combine_src_ca;
1.2421 + imp->combine_width_ca[PIXMAN_OP_DISJOINT_DST] = combine_dst;
1.2422 + imp->combine_width_ca[PIXMAN_OP_DISJOINT_OVER] = combine_disjoint_over_ca;
1.2423 + imp->combine_width_ca[PIXMAN_OP_DISJOINT_OVER_REVERSE] = combine_saturate_ca;
1.2424 + imp->combine_width_ca[PIXMAN_OP_DISJOINT_IN] = combine_disjoint_in_ca;
1.2425 + imp->combine_width_ca[PIXMAN_OP_DISJOINT_IN_REVERSE] = combine_disjoint_in_reverse_ca;
1.2426 + imp->combine_width_ca[PIXMAN_OP_DISJOINT_OUT] = combine_disjoint_out_ca;
1.2427 + imp->combine_width_ca[PIXMAN_OP_DISJOINT_OUT_REVERSE] = combine_disjoint_out_reverse_ca;
1.2428 + imp->combine_width_ca[PIXMAN_OP_DISJOINT_ATOP] = combine_disjoint_atop_ca;
1.2429 + imp->combine_width_ca[PIXMAN_OP_DISJOINT_ATOP_REVERSE] = combine_disjoint_atop_reverse_ca;
1.2430 + imp->combine_width_ca[PIXMAN_OP_DISJOINT_XOR] = combine_disjoint_xor_ca;
1.2431 +
1.2432 + /* Conjoint CA */
1.2433 + imp->combine_width_ca[PIXMAN_OP_CONJOINT_CLEAR] = combine_clear_ca;
1.2434 + imp->combine_width_ca[PIXMAN_OP_CONJOINT_SRC] = combine_src_ca;
1.2435 + imp->combine_width_ca[PIXMAN_OP_CONJOINT_DST] = combine_dst;
1.2436 + imp->combine_width_ca[PIXMAN_OP_CONJOINT_OVER] = combine_conjoint_over_ca;
1.2437 + imp->combine_width_ca[PIXMAN_OP_CONJOINT_OVER_REVERSE] = combine_conjoint_over_reverse_ca;
1.2438 + imp->combine_width_ca[PIXMAN_OP_CONJOINT_IN] = combine_conjoint_in_ca;
1.2439 + imp->combine_width_ca[PIXMAN_OP_CONJOINT_IN_REVERSE] = combine_conjoint_in_reverse_ca;
1.2440 + imp->combine_width_ca[PIXMAN_OP_CONJOINT_OUT] = combine_conjoint_out_ca;
1.2441 + imp->combine_width_ca[PIXMAN_OP_CONJOINT_OUT_REVERSE] = combine_conjoint_out_reverse_ca;
1.2442 + imp->combine_width_ca[PIXMAN_OP_CONJOINT_ATOP] = combine_conjoint_atop_ca;
1.2443 + imp->combine_width_ca[PIXMAN_OP_CONJOINT_ATOP_REVERSE] = combine_conjoint_atop_reverse_ca;
1.2444 + imp->combine_width_ca[PIXMAN_OP_CONJOINT_XOR] = combine_conjoint_xor_ca;
1.2445 +
1.2446 + imp->combine_width_ca[PIXMAN_OP_MULTIPLY] = combine_multiply_ca;
1.2447 + imp->combine_width_ca[PIXMAN_OP_SCREEN] = combine_screen_ca;
1.2448 + imp->combine_width_ca[PIXMAN_OP_OVERLAY] = combine_overlay_ca;
1.2449 + imp->combine_width_ca[PIXMAN_OP_DARKEN] = combine_darken_ca;
1.2450 + imp->combine_width_ca[PIXMAN_OP_LIGHTEN] = combine_lighten_ca;
1.2451 + imp->combine_width_ca[PIXMAN_OP_COLOR_DODGE] = combine_color_dodge_ca;
1.2452 + imp->combine_width_ca[PIXMAN_OP_COLOR_BURN] = combine_color_burn_ca;
1.2453 + imp->combine_width_ca[PIXMAN_OP_HARD_LIGHT] = combine_hard_light_ca;
1.2454 + imp->combine_width_ca[PIXMAN_OP_SOFT_LIGHT] = combine_soft_light_ca;
1.2455 + imp->combine_width_ca[PIXMAN_OP_DIFFERENCE] = combine_difference_ca;
1.2456 + imp->combine_width_ca[PIXMAN_OP_EXCLUSION] = combine_exclusion_ca;
1.2457 +
1.2458 + /* It is not clear that these make sense, so make them noops for now */
1.2459 + imp->combine_width_ca[PIXMAN_OP_HSL_HUE] = combine_dst;
1.2460 + imp->combine_width_ca[PIXMAN_OP_HSL_SATURATION] = combine_dst;
1.2461 + imp->combine_width_ca[PIXMAN_OP_HSL_COLOR] = combine_dst;
1.2462 + imp->combine_width_ca[PIXMAN_OP_HSL_LUMINOSITY] = combine_dst;
1.2463 +}
1.2464 +
