1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/cairo/libpixman/src/pixman-combine32.c Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,2504 @@
1.4 +/*
1.5 + * Copyright © 2000 Keith Packard, member of The XFree86 Project, Inc.
1.6 + * 2005 Lars Knoll & Zack Rusin, Trolltech
1.7 + *
1.8 + * Permission to use, copy, modify, distribute, and sell this software and its
1.9 + * documentation for any purpose is hereby granted without fee, provided that
1.10 + * the above copyright notice appear in all copies and that both that
1.11 + * copyright notice and this permission notice appear in supporting
1.12 + * documentation, and that the name of Keith Packard not be used in
1.13 + * advertising or publicity pertaining to distribution of the software without
1.14 + * specific, written prior permission. Keith Packard makes no
1.15 + * representations about the suitability of this software for any purpose. It
1.16 + * is provided "as is" without express or implied warranty.
1.17 + *
1.18 + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
1.19 + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
1.20 + * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
1.21 + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
1.22 + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
1.23 + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
1.24 + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
1.25 + * SOFTWARE.
1.26 + */
1.27 +#ifdef HAVE_CONFIG_H
1.28 +#include <config.h>
1.29 +#endif
1.30 +
1.31 +#include <math.h>
1.32 +#include <string.h>
1.33 +
1.34 +#include "pixman-private.h"
1.35 +#include "pixman-combine32.h"
1.36 +
1.37 +/* component alpha helper functions */
1.38 +
1.39 +static void
1.40 +combine_mask_ca (uint32_t *src, uint32_t *mask)
1.41 +{
1.42 + uint32_t a = *mask;
1.43 +
1.44 + uint32_t x;
1.45 + uint16_t xa;
1.46 +
1.47 + if (!a)
1.48 + {
1.49 + *(src) = 0;
1.50 + return;
1.51 + }
1.52 +
1.53 + x = *(src);
1.54 + if (a == ~0)
1.55 + {
1.56 + x = x >> A_SHIFT;
1.57 + x |= x << G_SHIFT;
1.58 + x |= x << R_SHIFT;
1.59 + *(mask) = x;
1.60 + return;
1.61 + }
1.62 +
1.63 + xa = x >> A_SHIFT;
1.64 + UN8x4_MUL_UN8x4 (x, a);
1.65 + *(src) = x;
1.66 +
1.67 + UN8x4_MUL_UN8 (a, xa);
1.68 + *(mask) = a;
1.69 +}
1.70 +
1.71 +static void
1.72 +combine_mask_value_ca (uint32_t *src, const uint32_t *mask)
1.73 +{
1.74 + uint32_t a = *mask;
1.75 + uint32_t x;
1.76 +
1.77 + if (!a)
1.78 + {
1.79 + *(src) = 0;
1.80 + return;
1.81 + }
1.82 +
1.83 + if (a == ~0)
1.84 + return;
1.85 +
1.86 + x = *(src);
1.87 + UN8x4_MUL_UN8x4 (x, a);
1.88 + *(src) = x;
1.89 +}
1.90 +
1.91 +static void
1.92 +combine_mask_alpha_ca (const uint32_t *src, uint32_t *mask)
1.93 +{
1.94 + uint32_t a = *(mask);
1.95 + uint32_t x;
1.96 +
1.97 + if (!a)
1.98 + return;
1.99 +
1.100 + x = *(src) >> A_SHIFT;
1.101 + if (x == MASK)
1.102 + return;
1.103 +
1.104 + if (a == ~0)
1.105 + {
1.106 + x |= x << G_SHIFT;
1.107 + x |= x << R_SHIFT;
1.108 + *(mask) = x;
1.109 + return;
1.110 + }
1.111 +
1.112 + UN8x4_MUL_UN8 (a, x);
1.113 + *(mask) = a;
1.114 +}
1.115 +
1.116 +/*
1.117 + * There are two ways of handling alpha -- either as a single unified value or
1.118 + * a separate value for each component, hence each macro must have two
1.119 + * versions. The unified alpha version has a 'u' at the end of the name,
1.120 + * the component version has a 'ca'. Similarly, functions which deal with
1.121 + * this difference will have two versions using the same convention.
1.122 + */
1.123 +
1.124 +static force_inline uint32_t
1.125 +combine_mask (const uint32_t *src, const uint32_t *mask, int i)
1.126 +{
1.127 + uint32_t s, m;
1.128 +
1.129 + if (mask)
1.130 + {
1.131 + m = *(mask + i) >> A_SHIFT;
1.132 +
1.133 + if (!m)
1.134 + return 0;
1.135 + }
1.136 +
1.137 + s = *(src + i);
1.138 +
1.139 + if (mask)
1.140 + UN8x4_MUL_UN8 (s, m);
1.141 +
1.142 + return s;
1.143 +}
1.144 +
1.145 +static void
1.146 +combine_clear (pixman_implementation_t *imp,
1.147 + pixman_op_t op,
1.148 + uint32_t * dest,
1.149 + const uint32_t * src,
1.150 + const uint32_t * mask,
1.151 + int width)
1.152 +{
1.153 + memset (dest, 0, width * sizeof(uint32_t));
1.154 +}
1.155 +
1.156 +static void
1.157 +combine_dst (pixman_implementation_t *imp,
1.158 + pixman_op_t op,
1.159 + uint32_t * dest,
1.160 + const uint32_t * src,
1.161 + const uint32_t * mask,
1.162 + int width)
1.163 +{
1.164 + return;
1.165 +}
1.166 +
1.167 +static void
1.168 +combine_src_u (pixman_implementation_t *imp,
1.169 + pixman_op_t op,
1.170 + uint32_t * dest,
1.171 + const uint32_t * src,
1.172 + const uint32_t * mask,
1.173 + int width)
1.174 +{
1.175 + int i;
1.176 +
1.177 + if (!mask)
1.178 + {
1.179 + memcpy (dest, src, width * sizeof (uint32_t));
1.180 + }
1.181 + else
1.182 + {
1.183 + for (i = 0; i < width; ++i)
1.184 + {
1.185 + uint32_t s = combine_mask (src, mask, i);
1.186 +
1.187 + *(dest + i) = s;
1.188 + }
1.189 + }
1.190 +}
1.191 +
1.192 +static void
1.193 +combine_over_u (pixman_implementation_t *imp,
1.194 + pixman_op_t op,
1.195 + uint32_t * dest,
1.196 + const uint32_t * src,
1.197 + const uint32_t * mask,
1.198 + int width)
1.199 +{
1.200 + int i;
1.201 +
1.202 + if (!mask)
1.203 + {
1.204 + for (i = 0; i < width; ++i)
1.205 + {
1.206 + uint32_t s = *(src + i);
1.207 + uint32_t a = ALPHA_8 (s);
1.208 + if (a == 0xFF)
1.209 + {
1.210 + *(dest + i) = s;
1.211 + }
1.212 + else if (s)
1.213 + {
1.214 + uint32_t d = *(dest + i);
1.215 + uint32_t ia = a ^ 0xFF;
1.216 + UN8x4_MUL_UN8_ADD_UN8x4 (d, ia, s);
1.217 + *(dest + i) = d;
1.218 + }
1.219 + }
1.220 + }
1.221 + else
1.222 + {
1.223 + for (i = 0; i < width; ++i)
1.224 + {
1.225 + uint32_t m = ALPHA_8 (*(mask + i));
1.226 + if (m == 0xFF)
1.227 + {
1.228 + uint32_t s = *(src + i);
1.229 + uint32_t a = ALPHA_8 (s);
1.230 + if (a == 0xFF)
1.231 + {
1.232 + *(dest + i) = s;
1.233 + }
1.234 + else if (s)
1.235 + {
1.236 + uint32_t d = *(dest + i);
1.237 + uint32_t ia = a ^ 0xFF;
1.238 + UN8x4_MUL_UN8_ADD_UN8x4 (d, ia, s);
1.239 + *(dest + i) = d;
1.240 + }
1.241 + }
1.242 + else if (m)
1.243 + {
1.244 + uint32_t s = *(src + i);
1.245 + if (s)
1.246 + {
1.247 + uint32_t d = *(dest + i);
1.248 + UN8x4_MUL_UN8 (s, m);
1.249 + UN8x4_MUL_UN8_ADD_UN8x4 (d, ALPHA_8 (~s), s);
1.250 + *(dest + i) = d;
1.251 + }
1.252 + }
1.253 + }
1.254 + }
1.255 +}
1.256 +
1.257 +static void
1.258 +combine_over_reverse_u (pixman_implementation_t *imp,
1.259 + pixman_op_t op,
1.260 + uint32_t * dest,
1.261 + const uint32_t * src,
1.262 + const uint32_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 + uint32_t s = combine_mask (src, mask, i);
1.270 + uint32_t d = *(dest + i);
1.271 + uint32_t ia = ALPHA_8 (~*(dest + i));
1.272 + UN8x4_MUL_UN8_ADD_UN8x4 (s, ia, d);
1.273 + *(dest + i) = s;
1.274 + }
1.275 +}
1.276 +
1.277 +static void
1.278 +combine_in_u (pixman_implementation_t *imp,
1.279 + pixman_op_t op,
1.280 + uint32_t * dest,
1.281 + const uint32_t * src,
1.282 + const uint32_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 + uint32_t s = combine_mask (src, mask, i);
1.290 + uint32_t a = ALPHA_8 (*(dest + i));
1.291 + UN8x4_MUL_UN8 (s, a);
1.292 + *(dest + i) = s;
1.293 + }
1.294 +}
1.295 +
1.296 +static void
1.297 +combine_in_reverse_u (pixman_implementation_t *imp,
1.298 + pixman_op_t op,
1.299 + uint32_t * dest,
1.300 + const uint32_t * src,
1.301 + const uint32_t * mask,
1.302 + int width)
1.303 +{
1.304 + int i;
1.305 +
1.306 + for (i = 0; i < width; ++i)
1.307 + {
1.308 + uint32_t s = combine_mask (src, mask, i);
1.309 + uint32_t d = *(dest + i);
1.310 + uint32_t a = ALPHA_8 (s);
1.311 + UN8x4_MUL_UN8 (d, a);
1.312 + *(dest + i) = d;
1.313 + }
1.314 +}
1.315 +
1.316 +static void
1.317 +combine_out_u (pixman_implementation_t *imp,
1.318 + pixman_op_t op,
1.319 + uint32_t * dest,
1.320 + const uint32_t * src,
1.321 + const uint32_t * mask,
1.322 + int width)
1.323 +{
1.324 + int i;
1.325 +
1.326 + for (i = 0; i < width; ++i)
1.327 + {
1.328 + uint32_t s = combine_mask (src, mask, i);
1.329 + uint32_t a = ALPHA_8 (~*(dest + i));
1.330 + UN8x4_MUL_UN8 (s, a);
1.331 + *(dest + i) = s;
1.332 + }
1.333 +}
1.334 +
1.335 +static void
1.336 +combine_out_reverse_u (pixman_implementation_t *imp,
1.337 + pixman_op_t op,
1.338 + uint32_t * dest,
1.339 + const uint32_t * src,
1.340 + const uint32_t * mask,
1.341 + int width)
1.342 +{
1.343 + int i;
1.344 +
1.345 + for (i = 0; i < width; ++i)
1.346 + {
1.347 + uint32_t s = combine_mask (src, mask, i);
1.348 + uint32_t d = *(dest + i);
1.349 + uint32_t a = ALPHA_8 (~s);
1.350 + UN8x4_MUL_UN8 (d, a);
1.351 + *(dest + i) = d;
1.352 + }
1.353 +}
1.354 +
1.355 +static void
1.356 +combine_atop_u (pixman_implementation_t *imp,
1.357 + pixman_op_t op,
1.358 + uint32_t * dest,
1.359 + const uint32_t * src,
1.360 + const uint32_t * mask,
1.361 + int width)
1.362 +{
1.363 + int i;
1.364 +
1.365 + for (i = 0; i < width; ++i)
1.366 + {
1.367 + uint32_t s = combine_mask (src, mask, i);
1.368 + uint32_t d = *(dest + i);
1.369 + uint32_t dest_a = ALPHA_8 (d);
1.370 + uint32_t src_ia = ALPHA_8 (~s);
1.371 +
1.372 + UN8x4_MUL_UN8_ADD_UN8x4_MUL_UN8 (s, dest_a, d, src_ia);
1.373 + *(dest + i) = s;
1.374 + }
1.375 +}
1.376 +
1.377 +static void
1.378 +combine_atop_reverse_u (pixman_implementation_t *imp,
1.379 + pixman_op_t op,
1.380 + uint32_t * dest,
1.381 + const uint32_t * src,
1.382 + const uint32_t * mask,
1.383 + int width)
1.384 +{
1.385 + int i;
1.386 +
1.387 + for (i = 0; i < width; ++i)
1.388 + {
1.389 + uint32_t s = combine_mask (src, mask, i);
1.390 + uint32_t d = *(dest + i);
1.391 + uint32_t src_a = ALPHA_8 (s);
1.392 + uint32_t dest_ia = ALPHA_8 (~d);
1.393 +
1.394 + UN8x4_MUL_UN8_ADD_UN8x4_MUL_UN8 (s, dest_ia, d, src_a);
1.395 + *(dest + i) = s;
1.396 + }
1.397 +}
1.398 +
1.399 +static void
1.400 +combine_xor_u (pixman_implementation_t *imp,
1.401 + pixman_op_t op,
1.402 + uint32_t * dest,
1.403 + const uint32_t * src,
1.404 + const uint32_t * mask,
1.405 + int width)
1.406 +{
1.407 + int i;
1.408 +
1.409 + for (i = 0; i < width; ++i)
1.410 + {
1.411 + uint32_t s = combine_mask (src, mask, i);
1.412 + uint32_t d = *(dest + i);
1.413 + uint32_t src_ia = ALPHA_8 (~s);
1.414 + uint32_t dest_ia = ALPHA_8 (~d);
1.415 +
1.416 + UN8x4_MUL_UN8_ADD_UN8x4_MUL_UN8 (s, dest_ia, d, src_ia);
1.417 + *(dest + i) = s;
1.418 + }
1.419 +}
1.420 +
1.421 +static void
1.422 +combine_add_u (pixman_implementation_t *imp,
1.423 + pixman_op_t op,
1.424 + uint32_t * dest,
1.425 + const uint32_t * src,
1.426 + const uint32_t * mask,
1.427 + int width)
1.428 +{
1.429 + int i;
1.430 +
1.431 + for (i = 0; i < width; ++i)
1.432 + {
1.433 + uint32_t s = combine_mask (src, mask, i);
1.434 + uint32_t d = *(dest + i);
1.435 + UN8x4_ADD_UN8x4 (d, s);
1.436 + *(dest + i) = d;
1.437 + }
1.438 +}
1.439 +
1.440 +static void
1.441 +combine_saturate_u (pixman_implementation_t *imp,
1.442 + pixman_op_t op,
1.443 + uint32_t * dest,
1.444 + const uint32_t * src,
1.445 + const uint32_t * mask,
1.446 + int width)
1.447 +{
1.448 + int i;
1.449 +
1.450 + for (i = 0; i < width; ++i)
1.451 + {
1.452 + uint32_t s = combine_mask (src, mask, i);
1.453 + uint32_t d = *(dest + i);
1.454 + uint16_t sa, da;
1.455 +
1.456 + sa = s >> A_SHIFT;
1.457 + da = ~d >> A_SHIFT;
1.458 + if (sa > da)
1.459 + {
1.460 + sa = DIV_UN8 (da, sa);
1.461 + UN8x4_MUL_UN8 (s, sa);
1.462 + }
1.463 + ;
1.464 + UN8x4_ADD_UN8x4 (d, s);
1.465 + *(dest + i) = d;
1.466 + }
1.467 +}
1.468 +
1.469 +/*
1.470 + * PDF blend modes:
1.471 + * The following blend modes have been taken from the PDF ISO 32000
1.472 + * specification, which at this point in time is available from
1.473 + * http://www.adobe.com/devnet/acrobat/pdfs/PDF32000_2008.pdf
1.474 + * The relevant chapters are 11.3.5 and 11.3.6.
1.475 + * The formula for computing the final pixel color given in 11.3.6 is:
1.476 + * αr × Cr = (1 – αs) × αb × Cb + (1 – αb) × αs × Cs + αb × αs × B(Cb, Cs)
1.477 + * with B() being the blend function.
1.478 + * Note that OVER is a special case of this operation, using B(Cb, Cs) = Cs
1.479 + *
1.480 + * These blend modes should match the SVG filter draft specification, as
1.481 + * it has been designed to mirror ISO 32000. Note that at the current point
1.482 + * no released draft exists that shows this, as the formulas have not been
1.483 + * updated yet after the release of ISO 32000.
1.484 + *
1.485 + * The default implementation here uses the PDF_SEPARABLE_BLEND_MODE and
1.486 + * PDF_NON_SEPARABLE_BLEND_MODE macros, which take the blend function as an
1.487 + * argument. Note that this implementation operates on premultiplied colors,
1.488 + * while the PDF specification does not. Therefore the code uses the formula
1.489 + * Cra = (1 – as) . Dca + (1 – ad) . Sca + B(Dca, ad, Sca, as)
1.490 + */
1.491 +
1.492 +/*
1.493 + * Multiply
1.494 + * B(Dca, ad, Sca, as) = Dca.Sca
1.495 + */
1.496 +static void
1.497 +combine_multiply_u (pixman_implementation_t *imp,
1.498 + pixman_op_t op,
1.499 + uint32_t * dest,
1.500 + const uint32_t * src,
1.501 + const uint32_t * mask,
1.502 + int width)
1.503 +{
1.504 + int i;
1.505 +
1.506 + for (i = 0; i < width; ++i)
1.507 + {
1.508 + uint32_t s = combine_mask (src, mask, i);
1.509 + uint32_t d = *(dest + i);
1.510 + uint32_t ss = s;
1.511 + uint32_t src_ia = ALPHA_8 (~s);
1.512 + uint32_t dest_ia = ALPHA_8 (~d);
1.513 +
1.514 + UN8x4_MUL_UN8_ADD_UN8x4_MUL_UN8 (ss, dest_ia, d, src_ia);
1.515 + UN8x4_MUL_UN8x4 (d, s);
1.516 + UN8x4_ADD_UN8x4 (d, ss);
1.517 +
1.518 + *(dest + i) = d;
1.519 + }
1.520 +}
1.521 +
1.522 +static void
1.523 +combine_multiply_ca (pixman_implementation_t *imp,
1.524 + pixman_op_t op,
1.525 + uint32_t * dest,
1.526 + const uint32_t * src,
1.527 + const uint32_t * mask,
1.528 + int width)
1.529 +{
1.530 + int i;
1.531 +
1.532 + for (i = 0; i < width; ++i)
1.533 + {
1.534 + uint32_t m = *(mask + i);
1.535 + uint32_t s = *(src + i);
1.536 + uint32_t d = *(dest + i);
1.537 + uint32_t r = d;
1.538 + uint32_t dest_ia = ALPHA_8 (~d);
1.539 +
1.540 + combine_mask_ca (&s, &m);
1.541 +
1.542 + UN8x4_MUL_UN8x4_ADD_UN8x4_MUL_UN8 (r, ~m, s, dest_ia);
1.543 + UN8x4_MUL_UN8x4 (d, s);
1.544 + UN8x4_ADD_UN8x4 (r, d);
1.545 +
1.546 + *(dest + i) = r;
1.547 + }
1.548 +}
1.549 +
1.550 +#define PDF_SEPARABLE_BLEND_MODE(name) \
1.551 + static void \
1.552 + combine_ ## name ## _u (pixman_implementation_t *imp, \
1.553 + pixman_op_t op, \
1.554 + uint32_t * dest, \
1.555 + const uint32_t * src, \
1.556 + const uint32_t * mask, \
1.557 + int width) \
1.558 + { \
1.559 + int i; \
1.560 + for (i = 0; i < width; ++i) { \
1.561 + uint32_t s = combine_mask (src, mask, i); \
1.562 + uint32_t d = *(dest + i); \
1.563 + uint8_t sa = ALPHA_8 (s); \
1.564 + uint8_t isa = ~sa; \
1.565 + uint8_t da = ALPHA_8 (d); \
1.566 + uint8_t ida = ~da; \
1.567 + uint32_t result; \
1.568 + \
1.569 + result = d; \
1.570 + UN8x4_MUL_UN8_ADD_UN8x4_MUL_UN8 (result, isa, s, ida); \
1.571 + \
1.572 + *(dest + i) = result + \
1.573 + (DIV_ONE_UN8 (sa * (uint32_t)da) << A_SHIFT) + \
1.574 + (blend_ ## name (RED_8 (d), da, RED_8 (s), sa) << R_SHIFT) + \
1.575 + (blend_ ## name (GREEN_8 (d), da, GREEN_8 (s), sa) << G_SHIFT) + \
1.576 + (blend_ ## name (BLUE_8 (d), da, BLUE_8 (s), sa)); \
1.577 + } \
1.578 + } \
1.579 + \
1.580 + static void \
1.581 + combine_ ## name ## _ca (pixman_implementation_t *imp, \
1.582 + pixman_op_t op, \
1.583 + uint32_t * dest, \
1.584 + const uint32_t * src, \
1.585 + const uint32_t * mask, \
1.586 + int width) \
1.587 + { \
1.588 + int i; \
1.589 + for (i = 0; i < width; ++i) { \
1.590 + uint32_t m = *(mask + i); \
1.591 + uint32_t s = *(src + i); \
1.592 + uint32_t d = *(dest + i); \
1.593 + uint8_t da = ALPHA_8 (d); \
1.594 + uint8_t ida = ~da; \
1.595 + uint32_t result; \
1.596 + \
1.597 + combine_mask_ca (&s, &m); \
1.598 + \
1.599 + result = d; \
1.600 + UN8x4_MUL_UN8x4_ADD_UN8x4_MUL_UN8 (result, ~m, s, ida); \
1.601 + \
1.602 + result += \
1.603 + (DIV_ONE_UN8 (ALPHA_8 (m) * (uint32_t)da) << A_SHIFT) + \
1.604 + (blend_ ## name (RED_8 (d), da, RED_8 (s), RED_8 (m)) << R_SHIFT) + \
1.605 + (blend_ ## name (GREEN_8 (d), da, GREEN_8 (s), GREEN_8 (m)) << G_SHIFT) + \
1.606 + (blend_ ## name (BLUE_8 (d), da, BLUE_8 (s), BLUE_8 (m))); \
1.607 + \
1.608 + *(dest + i) = result; \
1.609 + } \
1.610 + }
1.611 +
1.612 +/*
1.613 + * Screen
1.614 + * B(Dca, ad, Sca, as) = Dca.sa + Sca.da - Dca.Sca
1.615 + */
1.616 +static inline uint32_t
1.617 +blend_screen (uint32_t dca, uint32_t da, uint32_t sca, uint32_t sa)
1.618 +{
1.619 + return DIV_ONE_UN8 (sca * da + dca * sa - sca * dca);
1.620 +}
1.621 +
1.622 +PDF_SEPARABLE_BLEND_MODE (screen)
1.623 +
1.624 +/*
1.625 + * Overlay
1.626 + * B(Dca, Da, Sca, Sa) =
1.627 + * if 2.Dca < Da
1.628 + * 2.Sca.Dca
1.629 + * otherwise
1.630 + * Sa.Da - 2.(Da - Dca).(Sa - Sca)
1.631 + */
1.632 +static inline uint32_t
1.633 +blend_overlay (uint32_t dca, uint32_t da, uint32_t sca, uint32_t sa)
1.634 +{
1.635 + uint32_t rca;
1.636 +
1.637 + if (2 * dca < da)
1.638 + rca = 2 * sca * dca;
1.639 + else
1.640 + rca = sa * da - 2 * (da - dca) * (sa - sca);
1.641 + return DIV_ONE_UN8 (rca);
1.642 +}
1.643 +
1.644 +PDF_SEPARABLE_BLEND_MODE (overlay)
1.645 +
1.646 +/*
1.647 + * Darken
1.648 + * B(Dca, Da, Sca, Sa) = min (Sca.Da, Dca.Sa)
1.649 + */
1.650 +static inline uint32_t
1.651 +blend_darken (uint32_t dca, uint32_t da, uint32_t sca, uint32_t sa)
1.652 +{
1.653 + uint32_t s, d;
1.654 +
1.655 + s = sca * da;
1.656 + d = dca * sa;
1.657 + return DIV_ONE_UN8 (s > d ? d : s);
1.658 +}
1.659 +
1.660 +PDF_SEPARABLE_BLEND_MODE (darken)
1.661 +
1.662 +/*
1.663 + * Lighten
1.664 + * B(Dca, Da, Sca, Sa) = max (Sca.Da, Dca.Sa)
1.665 + */
1.666 +static inline uint32_t
1.667 +blend_lighten (uint32_t dca, uint32_t da, uint32_t sca, uint32_t sa)
1.668 +{
1.669 + uint32_t s, d;
1.670 +
1.671 + s = sca * da;
1.672 + d = dca * sa;
1.673 + return DIV_ONE_UN8 (s > d ? s : d);
1.674 +}
1.675 +
1.676 +PDF_SEPARABLE_BLEND_MODE (lighten)
1.677 +
1.678 +/*
1.679 + * Color dodge
1.680 + * B(Dca, Da, Sca, Sa) =
1.681 + * if Dca == 0
1.682 + * 0
1.683 + * if Sca == Sa
1.684 + * Sa.Da
1.685 + * otherwise
1.686 + * Sa.Da. min (1, Dca / Da / (1 - Sca/Sa))
1.687 + */
1.688 +static inline uint32_t
1.689 +blend_color_dodge (uint32_t dca, uint32_t da, uint32_t sca, uint32_t sa)
1.690 +{
1.691 + if (sca >= sa)
1.692 + {
1.693 + return dca == 0 ? 0 : DIV_ONE_UN8 (sa * da);
1.694 + }
1.695 + else
1.696 + {
1.697 + uint32_t rca = dca * sa / (sa - sca);
1.698 + return DIV_ONE_UN8 (sa * MIN (rca, da));
1.699 + }
1.700 +}
1.701 +
1.702 +PDF_SEPARABLE_BLEND_MODE (color_dodge)
1.703 +
1.704 +/*
1.705 + * Color burn
1.706 + * B(Dca, Da, Sca, Sa) =
1.707 + * if Dca == Da
1.708 + * Sa.Da
1.709 + * if Sca == 0
1.710 + * 0
1.711 + * otherwise
1.712 + * Sa.Da.(1 - min (1, (1 - Dca/Da).Sa / Sca))
1.713 + */
1.714 +static inline uint32_t
1.715 +blend_color_burn (uint32_t dca, uint32_t da, uint32_t sca, uint32_t sa)
1.716 +{
1.717 + if (sca == 0)
1.718 + {
1.719 + return dca < da ? 0 : DIV_ONE_UN8 (sa * da);
1.720 + }
1.721 + else
1.722 + {
1.723 + uint32_t rca = (da - dca) * sa / sca;
1.724 + return DIV_ONE_UN8 (sa * (MAX (rca, da) - rca));
1.725 + }
1.726 +}
1.727 +
1.728 +PDF_SEPARABLE_BLEND_MODE (color_burn)
1.729 +
1.730 +/*
1.731 + * Hard light
1.732 + * B(Dca, Da, Sca, Sa) =
1.733 + * if 2.Sca < Sa
1.734 + * 2.Sca.Dca
1.735 + * otherwise
1.736 + * Sa.Da - 2.(Da - Dca).(Sa - Sca)
1.737 + */
1.738 +static inline uint32_t
1.739 +blend_hard_light (uint32_t dca, uint32_t da, uint32_t sca, uint32_t sa)
1.740 +{
1.741 + if (2 * sca < sa)
1.742 + return DIV_ONE_UN8 (2 * sca * dca);
1.743 + else
1.744 + return DIV_ONE_UN8 (sa * da - 2 * (da - dca) * (sa - sca));
1.745 +}
1.746 +
1.747 +PDF_SEPARABLE_BLEND_MODE (hard_light)
1.748 +
1.749 +/*
1.750 + * Soft light
1.751 + * B(Dca, Da, Sca, Sa) =
1.752 + * if (2.Sca <= Sa)
1.753 + * Dca.(Sa - (1 - Dca/Da).(2.Sca - Sa))
1.754 + * otherwise if Dca.4 <= Da
1.755 + * Dca.(Sa + (2.Sca - Sa).((16.Dca/Da - 12).Dca/Da + 3)
1.756 + * otherwise
1.757 + * (Dca.Sa + (SQRT (Dca/Da).Da - Dca).(2.Sca - Sa))
1.758 + */
1.759 +static inline uint32_t
1.760 +blend_soft_light (uint32_t dca_org,
1.761 + uint32_t da_org,
1.762 + uint32_t sca_org,
1.763 + uint32_t sa_org)
1.764 +{
1.765 + double dca = dca_org * (1.0 / MASK);
1.766 + double da = da_org * (1.0 / MASK);
1.767 + double sca = sca_org * (1.0 / MASK);
1.768 + double sa = sa_org * (1.0 / MASK);
1.769 + double rca;
1.770 +
1.771 + if (2 * sca < sa)
1.772 + {
1.773 + if (da == 0)
1.774 + rca = dca * sa;
1.775 + else
1.776 + rca = dca * sa - dca * (da - dca) * (sa - 2 * sca) / da;
1.777 + }
1.778 + else if (da == 0)
1.779 + {
1.780 + rca = 0;
1.781 + }
1.782 + else if (4 * dca <= da)
1.783 + {
1.784 + rca = dca * sa +
1.785 + (2 * sca - sa) * dca * ((16 * dca / da - 12) * dca / da + 3);
1.786 + }
1.787 + else
1.788 + {
1.789 + rca = dca * sa + (sqrt (dca * da) - dca) * (2 * sca - sa);
1.790 + }
1.791 + return rca * MASK + 0.5;
1.792 +}
1.793 +
1.794 +PDF_SEPARABLE_BLEND_MODE (soft_light)
1.795 +
1.796 +/*
1.797 + * Difference
1.798 + * B(Dca, Da, Sca, Sa) = abs (Dca.Sa - Sca.Da)
1.799 + */
1.800 +static inline uint32_t
1.801 +blend_difference (uint32_t dca, uint32_t da, uint32_t sca, uint32_t sa)
1.802 +{
1.803 + uint32_t dcasa = dca * sa;
1.804 + uint32_t scada = sca * da;
1.805 +
1.806 + if (scada < dcasa)
1.807 + return DIV_ONE_UN8 (dcasa - scada);
1.808 + else
1.809 + return DIV_ONE_UN8 (scada - dcasa);
1.810 +}
1.811 +
1.812 +PDF_SEPARABLE_BLEND_MODE (difference)
1.813 +
1.814 +/*
1.815 + * Exclusion
1.816 + * B(Dca, Da, Sca, Sa) = (Sca.Da + Dca.Sa - 2.Sca.Dca)
1.817 + */
1.818 +
1.819 +/* This can be made faster by writing it directly and not using
1.820 + * PDF_SEPARABLE_BLEND_MODE, but that's a performance optimization */
1.821 +
1.822 +static inline uint32_t
1.823 +blend_exclusion (uint32_t dca, uint32_t da, uint32_t sca, uint32_t sa)
1.824 +{
1.825 + return DIV_ONE_UN8 (sca * da + dca * sa - 2 * dca * sca);
1.826 +}
1.827 +
1.828 +PDF_SEPARABLE_BLEND_MODE (exclusion)
1.829 +
1.830 +#undef PDF_SEPARABLE_BLEND_MODE
1.831 +
1.832 +/*
1.833 + * PDF nonseperable blend modes are implemented using the following functions
1.834 + * to operate in Hsl space, with Cmax, Cmid, Cmin referring to the max, mid
1.835 + * and min value of the red, green and blue components.
1.836 + *
1.837 + * LUM (C) = 0.3 × Cred + 0.59 × Cgreen + 0.11 × Cblue
1.838 + *
1.839 + * clip_color (C):
1.840 + * l = LUM (C)
1.841 + * min = Cmin
1.842 + * max = Cmax
1.843 + * if n < 0.0
1.844 + * C = l + ( ( ( C – l ) × l ) ⁄ ( l – min ) )
1.845 + * if x > 1.0
1.846 + * C = l + ( ( ( C – l ) × ( 1 – l ) ) ⁄ ( max – l ) )
1.847 + * return C
1.848 + *
1.849 + * set_lum (C, l):
1.850 + * d = l – LUM (C)
1.851 + * C += d
1.852 + * return clip_color (C)
1.853 + *
1.854 + * SAT (C) = CH_MAX (C) - CH_MIN (C)
1.855 + *
1.856 + * set_sat (C, s):
1.857 + * if Cmax > Cmin
1.858 + * Cmid = ( ( ( Cmid – Cmin ) × s ) ⁄ ( Cmax – Cmin ) )
1.859 + * Cmax = s
1.860 + * else
1.861 + * Cmid = Cmax = 0.0
1.862 + * Cmin = 0.0
1.863 + * return C
1.864 + */
1.865 +
1.866 +/* For premultiplied colors, we need to know what happens when C is
1.867 + * multiplied by a real number. LUM and SAT are linear:
1.868 + *
1.869 + * LUM (r × C) = r × LUM (C) SAT (r * C) = r * SAT (C)
1.870 + *
1.871 + * If we extend clip_color with an extra argument a and change
1.872 + *
1.873 + * if x >= 1.0
1.874 + *
1.875 + * into
1.876 + *
1.877 + * if x >= a
1.878 + *
1.879 + * then clip_color is also linear:
1.880 + *
1.881 + * r * clip_color (C, a) = clip_color (r_c, ra);
1.882 + *
1.883 + * for positive r.
1.884 + *
1.885 + * Similarly, we can extend set_lum with an extra argument that is just passed
1.886 + * on to clip_color:
1.887 + *
1.888 + * r * set_lum ( C, l, a)
1.889 + *
1.890 + * = r × clip_color ( C + l - LUM (C), a)
1.891 + *
1.892 + * = clip_color ( r * C + r × l - r * LUM (C), r * a)
1.893 + *
1.894 + * = set_lum ( r * C, r * l, r * a)
1.895 + *
1.896 + * Finally, set_sat:
1.897 + *
1.898 + * r * set_sat (C, s) = set_sat (x * C, r * s)
1.899 + *
1.900 + * The above holds for all non-zero x, because the x'es in the fraction for
1.901 + * C_mid cancel out. Specifically, it holds for x = r:
1.902 + *
1.903 + * r * set_sat (C, s) = set_sat (r_c, rs)
1.904 + *
1.905 + */
1.906 +
1.907 +/* So, for the non-separable PDF blend modes, we have (using s, d for
1.908 + * non-premultiplied colors, and S, D for premultiplied:
1.909 + *
1.910 + * Color:
1.911 + *
1.912 + * a_s * a_d * B(s, d)
1.913 + * = a_s * a_d * set_lum (S/a_s, LUM (D/a_d), 1)
1.914 + * = set_lum (S * a_d, a_s * LUM (D), a_s * a_d)
1.915 + *
1.916 + *
1.917 + * Luminosity:
1.918 + *
1.919 + * a_s * a_d * B(s, d)
1.920 + * = a_s * a_d * set_lum (D/a_d, LUM(S/a_s), 1)
1.921 + * = set_lum (a_s * D, a_d * LUM(S), a_s * a_d)
1.922 + *
1.923 + *
1.924 + * Saturation:
1.925 + *
1.926 + * a_s * a_d * B(s, d)
1.927 + * = a_s * a_d * set_lum (set_sat (D/a_d, SAT (S/a_s)), LUM (D/a_d), 1)
1.928 + * = set_lum (a_s * a_d * set_sat (D/a_d, SAT (S/a_s)),
1.929 + * a_s * LUM (D), a_s * a_d)
1.930 + * = set_lum (set_sat (a_s * D, a_d * SAT (S), a_s * LUM (D), a_s * a_d))
1.931 + *
1.932 + * Hue:
1.933 + *
1.934 + * a_s * a_d * B(s, d)
1.935 + * = a_s * a_d * set_lum (set_sat (S/a_s, SAT (D/a_d)), LUM (D/a_d), 1)
1.936 + * = set_lum (set_sat (a_d * S, a_s * SAT (D)), a_s * LUM (D), a_s * a_d)
1.937 + *
1.938 + */
1.939 +
1.940 +#define CH_MIN(c) (c[0] < c[1] ? (c[0] < c[2] ? c[0] : c[2]) : (c[1] < c[2] ? c[1] : c[2]))
1.941 +#define CH_MAX(c) (c[0] > c[1] ? (c[0] > c[2] ? c[0] : c[2]) : (c[1] > c[2] ? c[1] : c[2]))
1.942 +#define LUM(c) ((c[0] * 30 + c[1] * 59 + c[2] * 11) / 100)
1.943 +#define SAT(c) (CH_MAX (c) - CH_MIN (c))
1.944 +
1.945 +#define PDF_NON_SEPARABLE_BLEND_MODE(name) \
1.946 + static void \
1.947 + combine_ ## name ## _u (pixman_implementation_t *imp, \
1.948 + pixman_op_t op, \
1.949 + uint32_t *dest, \
1.950 + const uint32_t *src, \
1.951 + const uint32_t *mask, \
1.952 + int width) \
1.953 + { \
1.954 + int i; \
1.955 + for (i = 0; i < width; ++i) \
1.956 + { \
1.957 + uint32_t s = combine_mask (src, mask, i); \
1.958 + uint32_t d = *(dest + i); \
1.959 + uint8_t sa = ALPHA_8 (s); \
1.960 + uint8_t isa = ~sa; \
1.961 + uint8_t da = ALPHA_8 (d); \
1.962 + uint8_t ida = ~da; \
1.963 + uint32_t result; \
1.964 + uint32_t sc[3], dc[3], c[3]; \
1.965 + \
1.966 + result = d; \
1.967 + UN8x4_MUL_UN8_ADD_UN8x4_MUL_UN8 (result, isa, s, ida); \
1.968 + dc[0] = RED_8 (d); \
1.969 + sc[0] = RED_8 (s); \
1.970 + dc[1] = GREEN_8 (d); \
1.971 + sc[1] = GREEN_8 (s); \
1.972 + dc[2] = BLUE_8 (d); \
1.973 + sc[2] = BLUE_8 (s); \
1.974 + blend_ ## name (c, dc, da, sc, sa); \
1.975 + \
1.976 + *(dest + i) = result + \
1.977 + (DIV_ONE_UN8 (sa * (uint32_t)da) << A_SHIFT) + \
1.978 + (DIV_ONE_UN8 (c[0]) << R_SHIFT) + \
1.979 + (DIV_ONE_UN8 (c[1]) << G_SHIFT) + \
1.980 + (DIV_ONE_UN8 (c[2])); \
1.981 + } \
1.982 + }
1.983 +
1.984 +static void
1.985 +set_lum (uint32_t dest[3], uint32_t src[3], uint32_t sa, uint32_t lum)
1.986 +{
1.987 + double a, l, min, max;
1.988 + double tmp[3];
1.989 +
1.990 + a = sa * (1.0 / MASK);
1.991 +
1.992 + l = lum * (1.0 / MASK);
1.993 + tmp[0] = src[0] * (1.0 / MASK);
1.994 + tmp[1] = src[1] * (1.0 / MASK);
1.995 + tmp[2] = src[2] * (1.0 / MASK);
1.996 +
1.997 + l = l - LUM (tmp);
1.998 + tmp[0] += l;
1.999 + tmp[1] += l;
1.1000 + tmp[2] += l;
1.1001 +
1.1002 + /* clip_color */
1.1003 + l = LUM (tmp);
1.1004 + min = CH_MIN (tmp);
1.1005 + max = CH_MAX (tmp);
1.1006 +
1.1007 + if (min < 0)
1.1008 + {
1.1009 + if (l - min == 0.0)
1.1010 + {
1.1011 + tmp[0] = 0;
1.1012 + tmp[1] = 0;
1.1013 + tmp[2] = 0;
1.1014 + }
1.1015 + else
1.1016 + {
1.1017 + tmp[0] = l + (tmp[0] - l) * l / (l - min);
1.1018 + tmp[1] = l + (tmp[1] - l) * l / (l - min);
1.1019 + tmp[2] = l + (tmp[2] - l) * l / (l - min);
1.1020 + }
1.1021 + }
1.1022 + if (max > a)
1.1023 + {
1.1024 + if (max - l == 0.0)
1.1025 + {
1.1026 + tmp[0] = a;
1.1027 + tmp[1] = a;
1.1028 + tmp[2] = a;
1.1029 + }
1.1030 + else
1.1031 + {
1.1032 + tmp[0] = l + (tmp[0] - l) * (a - l) / (max - l);
1.1033 + tmp[1] = l + (tmp[1] - l) * (a - l) / (max - l);
1.1034 + tmp[2] = l + (tmp[2] - l) * (a - l) / (max - l);
1.1035 + }
1.1036 + }
1.1037 +
1.1038 + dest[0] = tmp[0] * MASK + 0.5;
1.1039 + dest[1] = tmp[1] * MASK + 0.5;
1.1040 + dest[2] = tmp[2] * MASK + 0.5;
1.1041 +}
1.1042 +
1.1043 +static void
1.1044 +set_sat (uint32_t dest[3], uint32_t src[3], uint32_t sat)
1.1045 +{
1.1046 + int id[3];
1.1047 + uint32_t min, max;
1.1048 +
1.1049 + if (src[0] > src[1])
1.1050 + {
1.1051 + if (src[0] > src[2])
1.1052 + {
1.1053 + id[0] = 0;
1.1054 + if (src[1] > src[2])
1.1055 + {
1.1056 + id[1] = 1;
1.1057 + id[2] = 2;
1.1058 + }
1.1059 + else
1.1060 + {
1.1061 + id[1] = 2;
1.1062 + id[2] = 1;
1.1063 + }
1.1064 + }
1.1065 + else
1.1066 + {
1.1067 + id[0] = 2;
1.1068 + id[1] = 0;
1.1069 + id[2] = 1;
1.1070 + }
1.1071 + }
1.1072 + else
1.1073 + {
1.1074 + if (src[0] > src[2])
1.1075 + {
1.1076 + id[0] = 1;
1.1077 + id[1] = 0;
1.1078 + id[2] = 2;
1.1079 + }
1.1080 + else
1.1081 + {
1.1082 + id[2] = 0;
1.1083 + if (src[1] > src[2])
1.1084 + {
1.1085 + id[0] = 1;
1.1086 + id[1] = 2;
1.1087 + }
1.1088 + else
1.1089 + {
1.1090 + id[0] = 2;
1.1091 + id[1] = 1;
1.1092 + }
1.1093 + }
1.1094 + }
1.1095 +
1.1096 + max = dest[id[0]];
1.1097 + min = dest[id[2]];
1.1098 + if (max > min)
1.1099 + {
1.1100 + dest[id[1]] = (dest[id[1]] - min) * sat / (max - min);
1.1101 + dest[id[0]] = sat;
1.1102 + dest[id[2]] = 0;
1.1103 + }
1.1104 + else
1.1105 + {
1.1106 + dest[0] = dest[1] = dest[2] = 0;
1.1107 + }
1.1108 +}
1.1109 +
1.1110 +/*
1.1111 + * Hue:
1.1112 + * B(Cb, Cs) = set_lum (set_sat (Cs, SAT (Cb)), LUM (Cb))
1.1113 + */
1.1114 +static inline void
1.1115 +blend_hsl_hue (uint32_t c[3],
1.1116 + uint32_t dc[3],
1.1117 + uint32_t da,
1.1118 + uint32_t sc[3],
1.1119 + uint32_t sa)
1.1120 +{
1.1121 + c[0] = sc[0] * da;
1.1122 + c[1] = sc[1] * da;
1.1123 + c[2] = sc[2] * da;
1.1124 + set_sat (c, c, SAT (dc) * sa);
1.1125 + set_lum (c, c, sa * da, LUM (dc) * sa);
1.1126 +}
1.1127 +
1.1128 +PDF_NON_SEPARABLE_BLEND_MODE (hsl_hue)
1.1129 +
1.1130 +/*
1.1131 + * Saturation:
1.1132 + * B(Cb, Cs) = set_lum (set_sat (Cb, SAT (Cs)), LUM (Cb))
1.1133 + */
1.1134 +static inline void
1.1135 +blend_hsl_saturation (uint32_t c[3],
1.1136 + uint32_t dc[3],
1.1137 + uint32_t da,
1.1138 + uint32_t sc[3],
1.1139 + uint32_t sa)
1.1140 +{
1.1141 + c[0] = dc[0] * sa;
1.1142 + c[1] = dc[1] * sa;
1.1143 + c[2] = dc[2] * sa;
1.1144 + set_sat (c, c, SAT (sc) * da);
1.1145 + set_lum (c, c, sa * da, LUM (dc) * sa);
1.1146 +}
1.1147 +
1.1148 +PDF_NON_SEPARABLE_BLEND_MODE (hsl_saturation)
1.1149 +
1.1150 +/*
1.1151 + * Color:
1.1152 + * B(Cb, Cs) = set_lum (Cs, LUM (Cb))
1.1153 + */
1.1154 +static inline void
1.1155 +blend_hsl_color (uint32_t c[3],
1.1156 + uint32_t dc[3],
1.1157 + uint32_t da,
1.1158 + uint32_t sc[3],
1.1159 + uint32_t sa)
1.1160 +{
1.1161 + c[0] = sc[0] * da;
1.1162 + c[1] = sc[1] * da;
1.1163 + c[2] = sc[2] * da;
1.1164 + set_lum (c, c, sa * da, LUM (dc) * sa);
1.1165 +}
1.1166 +
1.1167 +PDF_NON_SEPARABLE_BLEND_MODE (hsl_color)
1.1168 +
1.1169 +/*
1.1170 + * Luminosity:
1.1171 + * B(Cb, Cs) = set_lum (Cb, LUM (Cs))
1.1172 + */
1.1173 +static inline void
1.1174 +blend_hsl_luminosity (uint32_t c[3],
1.1175 + uint32_t dc[3],
1.1176 + uint32_t da,
1.1177 + uint32_t sc[3],
1.1178 + uint32_t sa)
1.1179 +{
1.1180 + c[0] = dc[0] * sa;
1.1181 + c[1] = dc[1] * sa;
1.1182 + c[2] = dc[2] * sa;
1.1183 + set_lum (c, c, sa * da, LUM (sc) * da);
1.1184 +}
1.1185 +
1.1186 +PDF_NON_SEPARABLE_BLEND_MODE (hsl_luminosity)
1.1187 +
1.1188 +#undef SAT
1.1189 +#undef LUM
1.1190 +#undef CH_MAX
1.1191 +#undef CH_MIN
1.1192 +#undef PDF_NON_SEPARABLE_BLEND_MODE
1.1193 +
1.1194 +/* All of the disjoint/conjoint composing functions
1.1195 + *
1.1196 + * The four entries in the first column indicate what source contributions
1.1197 + * come from each of the four areas of the picture -- areas covered by neither
1.1198 + * A nor B, areas covered only by A, areas covered only by B and finally
1.1199 + * areas covered by both A and B.
1.1200 + *
1.1201 + * Disjoint Conjoint
1.1202 + * Fa Fb Fa Fb
1.1203 + * (0,0,0,0) 0 0 0 0
1.1204 + * (0,A,0,A) 1 0 1 0
1.1205 + * (0,0,B,B) 0 1 0 1
1.1206 + * (0,A,B,A) 1 min((1-a)/b,1) 1 max(1-a/b,0)
1.1207 + * (0,A,B,B) min((1-b)/a,1) 1 max(1-b/a,0) 1
1.1208 + * (0,0,0,A) max(1-(1-b)/a,0) 0 min(1,b/a) 0
1.1209 + * (0,0,0,B) 0 max(1-(1-a)/b,0) 0 min(a/b,1)
1.1210 + * (0,A,0,0) min(1,(1-b)/a) 0 max(1-b/a,0) 0
1.1211 + * (0,0,B,0) 0 min(1,(1-a)/b) 0 max(1-a/b,0)
1.1212 + * (0,0,B,A) max(1-(1-b)/a,0) min(1,(1-a)/b) min(1,b/a) max(1-a/b,0)
1.1213 + * (0,A,0,B) min(1,(1-b)/a) max(1-(1-a)/b,0) max(1-b/a,0) min(1,a/b)
1.1214 + * (0,A,B,0) min(1,(1-b)/a) min(1,(1-a)/b) max(1-b/a,0) max(1-a/b,0)
1.1215 + *
1.1216 + * See http://marc.info/?l=xfree-render&m=99792000027857&w=2 for more
1.1217 + * information about these operators.
1.1218 + */
1.1219 +
1.1220 +#define COMBINE_A_OUT 1
1.1221 +#define COMBINE_A_IN 2
1.1222 +#define COMBINE_B_OUT 4
1.1223 +#define COMBINE_B_IN 8
1.1224 +
1.1225 +#define COMBINE_CLEAR 0
1.1226 +#define COMBINE_A (COMBINE_A_OUT | COMBINE_A_IN)
1.1227 +#define COMBINE_B (COMBINE_B_OUT | COMBINE_B_IN)
1.1228 +#define COMBINE_A_OVER (COMBINE_A_OUT | COMBINE_B_OUT | COMBINE_A_IN)
1.1229 +#define COMBINE_B_OVER (COMBINE_A_OUT | COMBINE_B_OUT | COMBINE_B_IN)
1.1230 +#define COMBINE_A_ATOP (COMBINE_B_OUT | COMBINE_A_IN)
1.1231 +#define COMBINE_B_ATOP (COMBINE_A_OUT | COMBINE_B_IN)
1.1232 +#define COMBINE_XOR (COMBINE_A_OUT | COMBINE_B_OUT)
1.1233 +
1.1234 +/* portion covered by a but not b */
1.1235 +static uint8_t
1.1236 +combine_disjoint_out_part (uint8_t a, uint8_t b)
1.1237 +{
1.1238 + /* min (1, (1-b) / a) */
1.1239 +
1.1240 + b = ~b; /* 1 - b */
1.1241 + if (b >= a) /* 1 - b >= a -> (1-b)/a >= 1 */
1.1242 + return MASK; /* 1 */
1.1243 + return DIV_UN8 (b, a); /* (1-b) / a */
1.1244 +}
1.1245 +
1.1246 +/* portion covered by both a and b */
1.1247 +static uint8_t
1.1248 +combine_disjoint_in_part (uint8_t a, uint8_t b)
1.1249 +{
1.1250 + /* max (1-(1-b)/a,0) */
1.1251 + /* = - min ((1-b)/a - 1, 0) */
1.1252 + /* = 1 - min (1, (1-b)/a) */
1.1253 +
1.1254 + b = ~b; /* 1 - b */
1.1255 + if (b >= a) /* 1 - b >= a -> (1-b)/a >= 1 */
1.1256 + return 0; /* 1 - 1 */
1.1257 + return ~DIV_UN8(b, a); /* 1 - (1-b) / a */
1.1258 +}
1.1259 +
1.1260 +/* portion covered by a but not b */
1.1261 +static uint8_t
1.1262 +combine_conjoint_out_part (uint8_t a, uint8_t b)
1.1263 +{
1.1264 + /* max (1-b/a,0) */
1.1265 + /* = 1-min(b/a,1) */
1.1266 +
1.1267 + /* min (1, (1-b) / a) */
1.1268 +
1.1269 + if (b >= a) /* b >= a -> b/a >= 1 */
1.1270 + return 0x00; /* 0 */
1.1271 + return ~DIV_UN8(b, a); /* 1 - b/a */
1.1272 +}
1.1273 +
1.1274 +/* portion covered by both a and b */
1.1275 +static uint8_t
1.1276 +combine_conjoint_in_part (uint8_t a, uint8_t b)
1.1277 +{
1.1278 + /* min (1,b/a) */
1.1279 +
1.1280 + if (b >= a) /* b >= a -> b/a >= 1 */
1.1281 + return MASK; /* 1 */
1.1282 + return DIV_UN8 (b, a); /* b/a */
1.1283 +}
1.1284 +
1.1285 +#define GET_COMP(v, i) ((uint16_t) (uint8_t) ((v) >> i))
1.1286 +
1.1287 +#define ADD(x, y, i, t) \
1.1288 + ((t) = GET_COMP (x, i) + GET_COMP (y, i), \
1.1289 + (uint32_t) ((uint8_t) ((t) | (0 - ((t) >> G_SHIFT)))) << (i))
1.1290 +
1.1291 +#define GENERIC(x, y, i, ax, ay, t, u, v) \
1.1292 + ((t) = (MUL_UN8 (GET_COMP (y, i), ay, (u)) + \
1.1293 + MUL_UN8 (GET_COMP (x, i), ax, (v))), \
1.1294 + (uint32_t) ((uint8_t) ((t) | \
1.1295 + (0 - ((t) >> G_SHIFT)))) << (i))
1.1296 +
1.1297 +static void
1.1298 +combine_disjoint_general_u (uint32_t * dest,
1.1299 + const uint32_t *src,
1.1300 + const uint32_t *mask,
1.1301 + int width,
1.1302 + uint8_t combine)
1.1303 +{
1.1304 + int i;
1.1305 +
1.1306 + for (i = 0; i < width; ++i)
1.1307 + {
1.1308 + uint32_t s = combine_mask (src, mask, i);
1.1309 + uint32_t d = *(dest + i);
1.1310 + uint32_t m, n, o, p;
1.1311 + uint16_t Fa, Fb, t, u, v;
1.1312 + uint8_t sa = s >> A_SHIFT;
1.1313 + uint8_t da = d >> A_SHIFT;
1.1314 +
1.1315 + switch (combine & COMBINE_A)
1.1316 + {
1.1317 + default:
1.1318 + Fa = 0;
1.1319 + break;
1.1320 +
1.1321 + case COMBINE_A_OUT:
1.1322 + Fa = combine_disjoint_out_part (sa, da);
1.1323 + break;
1.1324 +
1.1325 + case COMBINE_A_IN:
1.1326 + Fa = combine_disjoint_in_part (sa, da);
1.1327 + break;
1.1328 +
1.1329 + case COMBINE_A:
1.1330 + Fa = MASK;
1.1331 + break;
1.1332 + }
1.1333 +
1.1334 + switch (combine & COMBINE_B)
1.1335 + {
1.1336 + default:
1.1337 + Fb = 0;
1.1338 + break;
1.1339 +
1.1340 + case COMBINE_B_OUT:
1.1341 + Fb = combine_disjoint_out_part (da, sa);
1.1342 + break;
1.1343 +
1.1344 + case COMBINE_B_IN:
1.1345 + Fb = combine_disjoint_in_part (da, sa);
1.1346 + break;
1.1347 +
1.1348 + case COMBINE_B:
1.1349 + Fb = MASK;
1.1350 + break;
1.1351 + }
1.1352 + m = GENERIC (s, d, 0, Fa, Fb, t, u, v);
1.1353 + n = GENERIC (s, d, G_SHIFT, Fa, Fb, t, u, v);
1.1354 + o = GENERIC (s, d, R_SHIFT, Fa, Fb, t, u, v);
1.1355 + p = GENERIC (s, d, A_SHIFT, Fa, Fb, t, u, v);
1.1356 + s = m | n | o | p;
1.1357 + *(dest + i) = s;
1.1358 + }
1.1359 +}
1.1360 +
1.1361 +static void
1.1362 +combine_disjoint_over_u (pixman_implementation_t *imp,
1.1363 + pixman_op_t op,
1.1364 + uint32_t * dest,
1.1365 + const uint32_t * src,
1.1366 + const uint32_t * mask,
1.1367 + int width)
1.1368 +{
1.1369 + int i;
1.1370 +
1.1371 + for (i = 0; i < width; ++i)
1.1372 + {
1.1373 + uint32_t s = combine_mask (src, mask, i);
1.1374 + uint16_t a = s >> A_SHIFT;
1.1375 +
1.1376 + if (s != 0x00)
1.1377 + {
1.1378 + uint32_t d = *(dest + i);
1.1379 + a = combine_disjoint_out_part (d >> A_SHIFT, a);
1.1380 + UN8x4_MUL_UN8_ADD_UN8x4 (d, a, s);
1.1381 +
1.1382 + *(dest + i) = d;
1.1383 + }
1.1384 + }
1.1385 +}
1.1386 +
1.1387 +static void
1.1388 +combine_disjoint_in_u (pixman_implementation_t *imp,
1.1389 + pixman_op_t op,
1.1390 + uint32_t * dest,
1.1391 + const uint32_t * src,
1.1392 + const uint32_t * mask,
1.1393 + int width)
1.1394 +{
1.1395 + combine_disjoint_general_u (dest, src, mask, width, COMBINE_A_IN);
1.1396 +}
1.1397 +
1.1398 +static void
1.1399 +combine_disjoint_in_reverse_u (pixman_implementation_t *imp,
1.1400 + pixman_op_t op,
1.1401 + uint32_t * dest,
1.1402 + const uint32_t * src,
1.1403 + const uint32_t * mask,
1.1404 + int width)
1.1405 +{
1.1406 + combine_disjoint_general_u (dest, src, mask, width, COMBINE_B_IN);
1.1407 +}
1.1408 +
1.1409 +static void
1.1410 +combine_disjoint_out_u (pixman_implementation_t *imp,
1.1411 + pixman_op_t op,
1.1412 + uint32_t * dest,
1.1413 + const uint32_t * src,
1.1414 + const uint32_t * mask,
1.1415 + int width)
1.1416 +{
1.1417 + combine_disjoint_general_u (dest, src, mask, width, COMBINE_A_OUT);
1.1418 +}
1.1419 +
1.1420 +static void
1.1421 +combine_disjoint_out_reverse_u (pixman_implementation_t *imp,
1.1422 + pixman_op_t op,
1.1423 + uint32_t * dest,
1.1424 + const uint32_t * src,
1.1425 + const uint32_t * mask,
1.1426 + int width)
1.1427 +{
1.1428 + combine_disjoint_general_u (dest, src, mask, width, COMBINE_B_OUT);
1.1429 +}
1.1430 +
1.1431 +static void
1.1432 +combine_disjoint_atop_u (pixman_implementation_t *imp,
1.1433 + pixman_op_t op,
1.1434 + uint32_t * dest,
1.1435 + const uint32_t * src,
1.1436 + const uint32_t * mask,
1.1437 + int width)
1.1438 +{
1.1439 + combine_disjoint_general_u (dest, src, mask, width, COMBINE_A_ATOP);
1.1440 +}
1.1441 +
1.1442 +static void
1.1443 +combine_disjoint_atop_reverse_u (pixman_implementation_t *imp,
1.1444 + pixman_op_t op,
1.1445 + uint32_t * dest,
1.1446 + const uint32_t * src,
1.1447 + const uint32_t * mask,
1.1448 + int width)
1.1449 +{
1.1450 + combine_disjoint_general_u (dest, src, mask, width, COMBINE_B_ATOP);
1.1451 +}
1.1452 +
1.1453 +static void
1.1454 +combine_disjoint_xor_u (pixman_implementation_t *imp,
1.1455 + pixman_op_t op,
1.1456 + uint32_t * dest,
1.1457 + const uint32_t * src,
1.1458 + const uint32_t * mask,
1.1459 + int width)
1.1460 +{
1.1461 + combine_disjoint_general_u (dest, src, mask, width, COMBINE_XOR);
1.1462 +}
1.1463 +
1.1464 +static void
1.1465 +combine_conjoint_general_u (uint32_t * dest,
1.1466 + const uint32_t *src,
1.1467 + const uint32_t *mask,
1.1468 + int width,
1.1469 + uint8_t combine)
1.1470 +{
1.1471 + int i;
1.1472 +
1.1473 + for (i = 0; i < width; ++i)
1.1474 + {
1.1475 + uint32_t s = combine_mask (src, mask, i);
1.1476 + uint32_t d = *(dest + i);
1.1477 + uint32_t m, n, o, p;
1.1478 + uint16_t Fa, Fb, t, u, v;
1.1479 + uint8_t sa = s >> A_SHIFT;
1.1480 + uint8_t da = d >> A_SHIFT;
1.1481 +
1.1482 + switch (combine & COMBINE_A)
1.1483 + {
1.1484 + default:
1.1485 + Fa = 0;
1.1486 + break;
1.1487 +
1.1488 + case COMBINE_A_OUT:
1.1489 + Fa = combine_conjoint_out_part (sa, da);
1.1490 + break;
1.1491 +
1.1492 + case COMBINE_A_IN:
1.1493 + Fa = combine_conjoint_in_part (sa, da);
1.1494 + break;
1.1495 +
1.1496 + case COMBINE_A:
1.1497 + Fa = MASK;
1.1498 + break;
1.1499 + }
1.1500 +
1.1501 + switch (combine & COMBINE_B)
1.1502 + {
1.1503 + default:
1.1504 + Fb = 0;
1.1505 + break;
1.1506 +
1.1507 + case COMBINE_B_OUT:
1.1508 + Fb = combine_conjoint_out_part (da, sa);
1.1509 + break;
1.1510 +
1.1511 + case COMBINE_B_IN:
1.1512 + Fb = combine_conjoint_in_part (da, sa);
1.1513 + break;
1.1514 +
1.1515 + case COMBINE_B:
1.1516 + Fb = MASK;
1.1517 + break;
1.1518 + }
1.1519 +
1.1520 + m = GENERIC (s, d, 0, Fa, Fb, t, u, v);
1.1521 + n = GENERIC (s, d, G_SHIFT, Fa, Fb, t, u, v);
1.1522 + o = GENERIC (s, d, R_SHIFT, Fa, Fb, t, u, v);
1.1523 + p = GENERIC (s, d, A_SHIFT, Fa, Fb, t, u, v);
1.1524 +
1.1525 + s = m | n | o | p;
1.1526 +
1.1527 + *(dest + i) = s;
1.1528 + }
1.1529 +}
1.1530 +
1.1531 +static void
1.1532 +combine_conjoint_over_u (pixman_implementation_t *imp,
1.1533 + pixman_op_t op,
1.1534 + uint32_t * dest,
1.1535 + const uint32_t * src,
1.1536 + const uint32_t * mask,
1.1537 + int width)
1.1538 +{
1.1539 + combine_conjoint_general_u (dest, src, mask, width, COMBINE_A_OVER);
1.1540 +}
1.1541 +
1.1542 +static void
1.1543 +combine_conjoint_over_reverse_u (pixman_implementation_t *imp,
1.1544 + pixman_op_t op,
1.1545 + uint32_t * dest,
1.1546 + const uint32_t * src,
1.1547 + const uint32_t * mask,
1.1548 + int width)
1.1549 +{
1.1550 + combine_conjoint_general_u (dest, src, mask, width, COMBINE_B_OVER);
1.1551 +}
1.1552 +
1.1553 +static void
1.1554 +combine_conjoint_in_u (pixman_implementation_t *imp,
1.1555 + pixman_op_t op,
1.1556 + uint32_t * dest,
1.1557 + const uint32_t * src,
1.1558 + const uint32_t * mask,
1.1559 + int width)
1.1560 +{
1.1561 + combine_conjoint_general_u (dest, src, mask, width, COMBINE_A_IN);
1.1562 +}
1.1563 +
1.1564 +static void
1.1565 +combine_conjoint_in_reverse_u (pixman_implementation_t *imp,
1.1566 + pixman_op_t op,
1.1567 + uint32_t * dest,
1.1568 + const uint32_t * src,
1.1569 + const uint32_t * mask,
1.1570 + int width)
1.1571 +{
1.1572 + combine_conjoint_general_u (dest, src, mask, width, COMBINE_B_IN);
1.1573 +}
1.1574 +
1.1575 +static void
1.1576 +combine_conjoint_out_u (pixman_implementation_t *imp,
1.1577 + pixman_op_t op,
1.1578 + uint32_t * dest,
1.1579 + const uint32_t * src,
1.1580 + const uint32_t * mask,
1.1581 + int width)
1.1582 +{
1.1583 + combine_conjoint_general_u (dest, src, mask, width, COMBINE_A_OUT);
1.1584 +}
1.1585 +
1.1586 +static void
1.1587 +combine_conjoint_out_reverse_u (pixman_implementation_t *imp,
1.1588 + pixman_op_t op,
1.1589 + uint32_t * dest,
1.1590 + const uint32_t * src,
1.1591 + const uint32_t * mask,
1.1592 + int width)
1.1593 +{
1.1594 + combine_conjoint_general_u (dest, src, mask, width, COMBINE_B_OUT);
1.1595 +}
1.1596 +
1.1597 +static void
1.1598 +combine_conjoint_atop_u (pixman_implementation_t *imp,
1.1599 + pixman_op_t op,
1.1600 + uint32_t * dest,
1.1601 + const uint32_t * src,
1.1602 + const uint32_t * mask,
1.1603 + int width)
1.1604 +{
1.1605 + combine_conjoint_general_u (dest, src, mask, width, COMBINE_A_ATOP);
1.1606 +}
1.1607 +
1.1608 +static void
1.1609 +combine_conjoint_atop_reverse_u (pixman_implementation_t *imp,
1.1610 + pixman_op_t op,
1.1611 + uint32_t * dest,
1.1612 + const uint32_t * src,
1.1613 + const uint32_t * mask,
1.1614 + int width)
1.1615 +{
1.1616 + combine_conjoint_general_u (dest, src, mask, width, COMBINE_B_ATOP);
1.1617 +}
1.1618 +
1.1619 +static void
1.1620 +combine_conjoint_xor_u (pixman_implementation_t *imp,
1.1621 + pixman_op_t op,
1.1622 + uint32_t * dest,
1.1623 + const uint32_t * src,
1.1624 + const uint32_t * mask,
1.1625 + int width)
1.1626 +{
1.1627 + combine_conjoint_general_u (dest, src, mask, width, COMBINE_XOR);
1.1628 +}
1.1629 +
1.1630 +
1.1631 +/* Component alpha combiners */
1.1632 +
1.1633 +static void
1.1634 +combine_clear_ca (pixman_implementation_t *imp,
1.1635 + pixman_op_t op,
1.1636 + uint32_t * dest,
1.1637 + const uint32_t * src,
1.1638 + const uint32_t * mask,
1.1639 + int width)
1.1640 +{
1.1641 + memset (dest, 0, width * sizeof(uint32_t));
1.1642 +}
1.1643 +
1.1644 +static void
1.1645 +combine_src_ca (pixman_implementation_t *imp,
1.1646 + pixman_op_t op,
1.1647 + uint32_t * dest,
1.1648 + const uint32_t * src,
1.1649 + const uint32_t * mask,
1.1650 + int width)
1.1651 +{
1.1652 + int i;
1.1653 +
1.1654 + for (i = 0; i < width; ++i)
1.1655 + {
1.1656 + uint32_t s = *(src + i);
1.1657 + uint32_t m = *(mask + i);
1.1658 +
1.1659 + combine_mask_value_ca (&s, &m);
1.1660 +
1.1661 + *(dest + i) = s;
1.1662 + }
1.1663 +}
1.1664 +
1.1665 +static void
1.1666 +combine_over_ca (pixman_implementation_t *imp,
1.1667 + pixman_op_t op,
1.1668 + uint32_t * dest,
1.1669 + const uint32_t * src,
1.1670 + const uint32_t * mask,
1.1671 + int width)
1.1672 +{
1.1673 + int i;
1.1674 +
1.1675 + for (i = 0; i < width; ++i)
1.1676 + {
1.1677 + uint32_t s = *(src + i);
1.1678 + uint32_t m = *(mask + i);
1.1679 + uint32_t a;
1.1680 +
1.1681 + combine_mask_ca (&s, &m);
1.1682 +
1.1683 + a = ~m;
1.1684 + if (a)
1.1685 + {
1.1686 + uint32_t d = *(dest + i);
1.1687 + UN8x4_MUL_UN8x4_ADD_UN8x4 (d, a, s);
1.1688 + s = d;
1.1689 + }
1.1690 +
1.1691 + *(dest + i) = s;
1.1692 + }
1.1693 +}
1.1694 +
1.1695 +static void
1.1696 +combine_over_reverse_ca (pixman_implementation_t *imp,
1.1697 + pixman_op_t op,
1.1698 + uint32_t * dest,
1.1699 + const uint32_t * src,
1.1700 + const uint32_t * mask,
1.1701 + int width)
1.1702 +{
1.1703 + int i;
1.1704 +
1.1705 + for (i = 0; i < width; ++i)
1.1706 + {
1.1707 + uint32_t d = *(dest + i);
1.1708 + uint32_t a = ~d >> A_SHIFT;
1.1709 +
1.1710 + if (a)
1.1711 + {
1.1712 + uint32_t s = *(src + i);
1.1713 + uint32_t m = *(mask + i);
1.1714 +
1.1715 + UN8x4_MUL_UN8x4 (s, m);
1.1716 + UN8x4_MUL_UN8_ADD_UN8x4 (s, a, d);
1.1717 +
1.1718 + *(dest + i) = s;
1.1719 + }
1.1720 + }
1.1721 +}
1.1722 +
1.1723 +static void
1.1724 +combine_in_ca (pixman_implementation_t *imp,
1.1725 + pixman_op_t op,
1.1726 + uint32_t * dest,
1.1727 + const uint32_t * src,
1.1728 + const uint32_t * mask,
1.1729 + int width)
1.1730 +{
1.1731 + int i;
1.1732 +
1.1733 + for (i = 0; i < width; ++i)
1.1734 + {
1.1735 + uint32_t d = *(dest + i);
1.1736 + uint16_t a = d >> A_SHIFT;
1.1737 + uint32_t s = 0;
1.1738 +
1.1739 + if (a)
1.1740 + {
1.1741 + uint32_t m = *(mask + i);
1.1742 +
1.1743 + s = *(src + i);
1.1744 + combine_mask_value_ca (&s, &m);
1.1745 +
1.1746 + if (a != MASK)
1.1747 + UN8x4_MUL_UN8 (s, a);
1.1748 + }
1.1749 +
1.1750 + *(dest + i) = s;
1.1751 + }
1.1752 +}
1.1753 +
1.1754 +static void
1.1755 +combine_in_reverse_ca (pixman_implementation_t *imp,
1.1756 + pixman_op_t op,
1.1757 + uint32_t * dest,
1.1758 + const uint32_t * src,
1.1759 + const uint32_t * mask,
1.1760 + int width)
1.1761 +{
1.1762 + int i;
1.1763 +
1.1764 + for (i = 0; i < width; ++i)
1.1765 + {
1.1766 + uint32_t s = *(src + i);
1.1767 + uint32_t m = *(mask + i);
1.1768 + uint32_t a;
1.1769 +
1.1770 + combine_mask_alpha_ca (&s, &m);
1.1771 +
1.1772 + a = m;
1.1773 + if (a != ~0)
1.1774 + {
1.1775 + uint32_t d = 0;
1.1776 +
1.1777 + if (a)
1.1778 + {
1.1779 + d = *(dest + i);
1.1780 + UN8x4_MUL_UN8x4 (d, a);
1.1781 + }
1.1782 +
1.1783 + *(dest + i) = d;
1.1784 + }
1.1785 + }
1.1786 +}
1.1787 +
1.1788 +static void
1.1789 +combine_out_ca (pixman_implementation_t *imp,
1.1790 + pixman_op_t op,
1.1791 + uint32_t * dest,
1.1792 + const uint32_t * src,
1.1793 + const uint32_t * mask,
1.1794 + int width)
1.1795 +{
1.1796 + int i;
1.1797 +
1.1798 + for (i = 0; i < width; ++i)
1.1799 + {
1.1800 + uint32_t d = *(dest + i);
1.1801 + uint16_t a = ~d >> A_SHIFT;
1.1802 + uint32_t s = 0;
1.1803 +
1.1804 + if (a)
1.1805 + {
1.1806 + uint32_t m = *(mask + i);
1.1807 +
1.1808 + s = *(src + i);
1.1809 + combine_mask_value_ca (&s, &m);
1.1810 +
1.1811 + if (a != MASK)
1.1812 + UN8x4_MUL_UN8 (s, a);
1.1813 + }
1.1814 +
1.1815 + *(dest + i) = s;
1.1816 + }
1.1817 +}
1.1818 +
1.1819 +static void
1.1820 +combine_out_reverse_ca (pixman_implementation_t *imp,
1.1821 + pixman_op_t op,
1.1822 + uint32_t * dest,
1.1823 + const uint32_t * src,
1.1824 + const uint32_t * mask,
1.1825 + int width)
1.1826 +{
1.1827 + int i;
1.1828 +
1.1829 + for (i = 0; i < width; ++i)
1.1830 + {
1.1831 + uint32_t s = *(src + i);
1.1832 + uint32_t m = *(mask + i);
1.1833 + uint32_t a;
1.1834 +
1.1835 + combine_mask_alpha_ca (&s, &m);
1.1836 +
1.1837 + a = ~m;
1.1838 + if (a != ~0)
1.1839 + {
1.1840 + uint32_t d = 0;
1.1841 +
1.1842 + if (a)
1.1843 + {
1.1844 + d = *(dest + i);
1.1845 + UN8x4_MUL_UN8x4 (d, a);
1.1846 + }
1.1847 +
1.1848 + *(dest + i) = d;
1.1849 + }
1.1850 + }
1.1851 +}
1.1852 +
1.1853 +static void
1.1854 +combine_atop_ca (pixman_implementation_t *imp,
1.1855 + pixman_op_t op,
1.1856 + uint32_t * dest,
1.1857 + const uint32_t * src,
1.1858 + const uint32_t * mask,
1.1859 + int width)
1.1860 +{
1.1861 + int i;
1.1862 +
1.1863 + for (i = 0; i < width; ++i)
1.1864 + {
1.1865 + uint32_t d = *(dest + i);
1.1866 + uint32_t s = *(src + i);
1.1867 + uint32_t m = *(mask + i);
1.1868 + uint32_t ad;
1.1869 + uint16_t as = d >> A_SHIFT;
1.1870 +
1.1871 + combine_mask_ca (&s, &m);
1.1872 +
1.1873 + ad = ~m;
1.1874 +
1.1875 + UN8x4_MUL_UN8x4_ADD_UN8x4_MUL_UN8 (d, ad, s, as);
1.1876 +
1.1877 + *(dest + i) = d;
1.1878 + }
1.1879 +}
1.1880 +
1.1881 +static void
1.1882 +combine_atop_reverse_ca (pixman_implementation_t *imp,
1.1883 + pixman_op_t op,
1.1884 + uint32_t * dest,
1.1885 + const uint32_t * src,
1.1886 + const uint32_t * mask,
1.1887 + int width)
1.1888 +{
1.1889 + int i;
1.1890 +
1.1891 + for (i = 0; i < width; ++i)
1.1892 + {
1.1893 + uint32_t d = *(dest + i);
1.1894 + uint32_t s = *(src + i);
1.1895 + uint32_t m = *(mask + i);
1.1896 + uint32_t ad;
1.1897 + uint16_t as = ~d >> A_SHIFT;
1.1898 +
1.1899 + combine_mask_ca (&s, &m);
1.1900 +
1.1901 + ad = m;
1.1902 +
1.1903 + UN8x4_MUL_UN8x4_ADD_UN8x4_MUL_UN8 (d, ad, s, as);
1.1904 +
1.1905 + *(dest + i) = d;
1.1906 + }
1.1907 +}
1.1908 +
1.1909 +static void
1.1910 +combine_xor_ca (pixman_implementation_t *imp,
1.1911 + pixman_op_t op,
1.1912 + uint32_t * dest,
1.1913 + const uint32_t * src,
1.1914 + const uint32_t * mask,
1.1915 + int width)
1.1916 +{
1.1917 + int i;
1.1918 +
1.1919 + for (i = 0; i < width; ++i)
1.1920 + {
1.1921 + uint32_t d = *(dest + i);
1.1922 + uint32_t s = *(src + i);
1.1923 + uint32_t m = *(mask + i);
1.1924 + uint32_t ad;
1.1925 + uint16_t as = ~d >> A_SHIFT;
1.1926 +
1.1927 + combine_mask_ca (&s, &m);
1.1928 +
1.1929 + ad = ~m;
1.1930 +
1.1931 + UN8x4_MUL_UN8x4_ADD_UN8x4_MUL_UN8 (d, ad, s, as);
1.1932 +
1.1933 + *(dest + i) = d;
1.1934 + }
1.1935 +}
1.1936 +
1.1937 +static void
1.1938 +combine_add_ca (pixman_implementation_t *imp,
1.1939 + pixman_op_t op,
1.1940 + uint32_t * dest,
1.1941 + const uint32_t * src,
1.1942 + const uint32_t * mask,
1.1943 + int width)
1.1944 +{
1.1945 + int i;
1.1946 +
1.1947 + for (i = 0; i < width; ++i)
1.1948 + {
1.1949 + uint32_t s = *(src + i);
1.1950 + uint32_t m = *(mask + i);
1.1951 + uint32_t d = *(dest + i);
1.1952 +
1.1953 + combine_mask_value_ca (&s, &m);
1.1954 +
1.1955 + UN8x4_ADD_UN8x4 (d, s);
1.1956 +
1.1957 + *(dest + i) = d;
1.1958 + }
1.1959 +}
1.1960 +
1.1961 +static void
1.1962 +combine_saturate_ca (pixman_implementation_t *imp,
1.1963 + pixman_op_t op,
1.1964 + uint32_t * dest,
1.1965 + const uint32_t * src,
1.1966 + const uint32_t * mask,
1.1967 + int width)
1.1968 +{
1.1969 + int i;
1.1970 +
1.1971 + for (i = 0; i < width; ++i)
1.1972 + {
1.1973 + uint32_t s, d;
1.1974 + uint16_t sa, sr, sg, sb, da;
1.1975 + uint16_t t, u, v;
1.1976 + uint32_t m, n, o, p;
1.1977 +
1.1978 + d = *(dest + i);
1.1979 + s = *(src + i);
1.1980 + m = *(mask + i);
1.1981 +
1.1982 + combine_mask_ca (&s, &m);
1.1983 +
1.1984 + sa = (m >> A_SHIFT);
1.1985 + sr = (m >> R_SHIFT) & MASK;
1.1986 + sg = (m >> G_SHIFT) & MASK;
1.1987 + sb = m & MASK;
1.1988 + da = ~d >> A_SHIFT;
1.1989 +
1.1990 + if (sb <= da)
1.1991 + m = ADD (s, d, 0, t);
1.1992 + else
1.1993 + m = GENERIC (s, d, 0, (da << G_SHIFT) / sb, MASK, t, u, v);
1.1994 +
1.1995 + if (sg <= da)
1.1996 + n = ADD (s, d, G_SHIFT, t);
1.1997 + else
1.1998 + n = GENERIC (s, d, G_SHIFT, (da << G_SHIFT) / sg, MASK, t, u, v);
1.1999 +
1.2000 + if (sr <= da)
1.2001 + o = ADD (s, d, R_SHIFT, t);
1.2002 + else
1.2003 + o = GENERIC (s, d, R_SHIFT, (da << G_SHIFT) / sr, MASK, t, u, v);
1.2004 +
1.2005 + if (sa <= da)
1.2006 + p = ADD (s, d, A_SHIFT, t);
1.2007 + else
1.2008 + p = GENERIC (s, d, A_SHIFT, (da << G_SHIFT) / sa, MASK, t, u, v);
1.2009 +
1.2010 + *(dest + i) = m | n | o | p;
1.2011 + }
1.2012 +}
1.2013 +
1.2014 +static void
1.2015 +combine_disjoint_general_ca (uint32_t * dest,
1.2016 + const uint32_t *src,
1.2017 + const uint32_t *mask,
1.2018 + int width,
1.2019 + uint8_t combine)
1.2020 +{
1.2021 + int i;
1.2022 +
1.2023 + for (i = 0; i < width; ++i)
1.2024 + {
1.2025 + uint32_t s, d;
1.2026 + uint32_t m, n, o, p;
1.2027 + uint32_t Fa, Fb;
1.2028 + uint16_t t, u, v;
1.2029 + uint32_t sa;
1.2030 + uint8_t da;
1.2031 +
1.2032 + s = *(src + i);
1.2033 + m = *(mask + i);
1.2034 + d = *(dest + i);
1.2035 + da = d >> A_SHIFT;
1.2036 +
1.2037 + combine_mask_ca (&s, &m);
1.2038 +
1.2039 + sa = m;
1.2040 +
1.2041 + switch (combine & COMBINE_A)
1.2042 + {
1.2043 + default:
1.2044 + Fa = 0;
1.2045 + break;
1.2046 +
1.2047 + case COMBINE_A_OUT:
1.2048 + m = (uint32_t)combine_disjoint_out_part ((uint8_t) (sa >> 0), da);
1.2049 + n = (uint32_t)combine_disjoint_out_part ((uint8_t) (sa >> G_SHIFT), da) << G_SHIFT;
1.2050 + o = (uint32_t)combine_disjoint_out_part ((uint8_t) (sa >> R_SHIFT), da) << R_SHIFT;
1.2051 + p = (uint32_t)combine_disjoint_out_part ((uint8_t) (sa >> A_SHIFT), da) << A_SHIFT;
1.2052 + Fa = m | n | o | p;
1.2053 + break;
1.2054 +
1.2055 + case COMBINE_A_IN:
1.2056 + m = (uint32_t)combine_disjoint_in_part ((uint8_t) (sa >> 0), da);
1.2057 + n = (uint32_t)combine_disjoint_in_part ((uint8_t) (sa >> G_SHIFT), da) << G_SHIFT;
1.2058 + o = (uint32_t)combine_disjoint_in_part ((uint8_t) (sa >> R_SHIFT), da) << R_SHIFT;
1.2059 + p = (uint32_t)combine_disjoint_in_part ((uint8_t) (sa >> A_SHIFT), da) << A_SHIFT;
1.2060 + Fa = m | n | o | p;
1.2061 + break;
1.2062 +
1.2063 + case COMBINE_A:
1.2064 + Fa = ~0;
1.2065 + break;
1.2066 + }
1.2067 +
1.2068 + switch (combine & COMBINE_B)
1.2069 + {
1.2070 + default:
1.2071 + Fb = 0;
1.2072 + break;
1.2073 +
1.2074 + case COMBINE_B_OUT:
1.2075 + m = (uint32_t)combine_disjoint_out_part (da, (uint8_t) (sa >> 0));
1.2076 + n = (uint32_t)combine_disjoint_out_part (da, (uint8_t) (sa >> G_SHIFT)) << G_SHIFT;
1.2077 + o = (uint32_t)combine_disjoint_out_part (da, (uint8_t) (sa >> R_SHIFT)) << R_SHIFT;
1.2078 + p = (uint32_t)combine_disjoint_out_part (da, (uint8_t) (sa >> A_SHIFT)) << A_SHIFT;
1.2079 + Fb = m | n | o | p;
1.2080 + break;
1.2081 +
1.2082 + case COMBINE_B_IN:
1.2083 + m = (uint32_t)combine_disjoint_in_part (da, (uint8_t) (sa >> 0));
1.2084 + n = (uint32_t)combine_disjoint_in_part (da, (uint8_t) (sa >> G_SHIFT)) << G_SHIFT;
1.2085 + o = (uint32_t)combine_disjoint_in_part (da, (uint8_t) (sa >> R_SHIFT)) << R_SHIFT;
1.2086 + p = (uint32_t)combine_disjoint_in_part (da, (uint8_t) (sa >> A_SHIFT)) << A_SHIFT;
1.2087 + Fb = m | n | o | p;
1.2088 + break;
1.2089 +
1.2090 + case COMBINE_B:
1.2091 + Fb = ~0;
1.2092 + break;
1.2093 + }
1.2094 + m = GENERIC (s, d, 0, GET_COMP (Fa, 0), GET_COMP (Fb, 0), t, u, v);
1.2095 + n = GENERIC (s, d, G_SHIFT, GET_COMP (Fa, G_SHIFT), GET_COMP (Fb, G_SHIFT), t, u, v);
1.2096 + o = GENERIC (s, d, R_SHIFT, GET_COMP (Fa, R_SHIFT), GET_COMP (Fb, R_SHIFT), t, u, v);
1.2097 + p = GENERIC (s, d, A_SHIFT, GET_COMP (Fa, A_SHIFT), GET_COMP (Fb, A_SHIFT), t, u, v);
1.2098 +
1.2099 + s = m | n | o | p;
1.2100 +
1.2101 + *(dest + i) = s;
1.2102 + }
1.2103 +}
1.2104 +
1.2105 +static void
1.2106 +combine_disjoint_over_ca (pixman_implementation_t *imp,
1.2107 + pixman_op_t op,
1.2108 + uint32_t * dest,
1.2109 + const uint32_t * src,
1.2110 + const uint32_t * mask,
1.2111 + int width)
1.2112 +{
1.2113 + combine_disjoint_general_ca (dest, src, mask, width, COMBINE_A_OVER);
1.2114 +}
1.2115 +
1.2116 +static void
1.2117 +combine_disjoint_in_ca (pixman_implementation_t *imp,
1.2118 + pixman_op_t op,
1.2119 + uint32_t * dest,
1.2120 + const uint32_t * src,
1.2121 + const uint32_t * mask,
1.2122 + int width)
1.2123 +{
1.2124 + combine_disjoint_general_ca (dest, src, mask, width, COMBINE_A_IN);
1.2125 +}
1.2126 +
1.2127 +static void
1.2128 +combine_disjoint_in_reverse_ca (pixman_implementation_t *imp,
1.2129 + pixman_op_t op,
1.2130 + uint32_t * dest,
1.2131 + const uint32_t * src,
1.2132 + const uint32_t * mask,
1.2133 + int width)
1.2134 +{
1.2135 + combine_disjoint_general_ca (dest, src, mask, width, COMBINE_B_IN);
1.2136 +}
1.2137 +
1.2138 +static void
1.2139 +combine_disjoint_out_ca (pixman_implementation_t *imp,
1.2140 + pixman_op_t op,
1.2141 + uint32_t * dest,
1.2142 + const uint32_t * src,
1.2143 + const uint32_t * mask,
1.2144 + int width)
1.2145 +{
1.2146 + combine_disjoint_general_ca (dest, src, mask, width, COMBINE_A_OUT);
1.2147 +}
1.2148 +
1.2149 +static void
1.2150 +combine_disjoint_out_reverse_ca (pixman_implementation_t *imp,
1.2151 + pixman_op_t op,
1.2152 + uint32_t * dest,
1.2153 + const uint32_t * src,
1.2154 + const uint32_t * mask,
1.2155 + int width)
1.2156 +{
1.2157 + combine_disjoint_general_ca (dest, src, mask, width, COMBINE_B_OUT);
1.2158 +}
1.2159 +
1.2160 +static void
1.2161 +combine_disjoint_atop_ca (pixman_implementation_t *imp,
1.2162 + pixman_op_t op,
1.2163 + uint32_t * dest,
1.2164 + const uint32_t * src,
1.2165 + const uint32_t * mask,
1.2166 + int width)
1.2167 +{
1.2168 + combine_disjoint_general_ca (dest, src, mask, width, COMBINE_A_ATOP);
1.2169 +}
1.2170 +
1.2171 +static void
1.2172 +combine_disjoint_atop_reverse_ca (pixman_implementation_t *imp,
1.2173 + pixman_op_t op,
1.2174 + uint32_t * dest,
1.2175 + const uint32_t * src,
1.2176 + const uint32_t * mask,
1.2177 + int width)
1.2178 +{
1.2179 + combine_disjoint_general_ca (dest, src, mask, width, COMBINE_B_ATOP);
1.2180 +}
1.2181 +
1.2182 +static void
1.2183 +combine_disjoint_xor_ca (pixman_implementation_t *imp,
1.2184 + pixman_op_t op,
1.2185 + uint32_t * dest,
1.2186 + const uint32_t * src,
1.2187 + const uint32_t * mask,
1.2188 + int width)
1.2189 +{
1.2190 + combine_disjoint_general_ca (dest, src, mask, width, COMBINE_XOR);
1.2191 +}
1.2192 +
1.2193 +static void
1.2194 +combine_conjoint_general_ca (uint32_t * dest,
1.2195 + const uint32_t *src,
1.2196 + const uint32_t *mask,
1.2197 + int width,
1.2198 + uint8_t combine)
1.2199 +{
1.2200 + int i;
1.2201 +
1.2202 + for (i = 0; i < width; ++i)
1.2203 + {
1.2204 + uint32_t s, d;
1.2205 + uint32_t m, n, o, p;
1.2206 + uint32_t Fa, Fb;
1.2207 + uint16_t t, u, v;
1.2208 + uint32_t sa;
1.2209 + uint8_t da;
1.2210 +
1.2211 + s = *(src + i);
1.2212 + m = *(mask + i);
1.2213 + d = *(dest + i);
1.2214 + da = d >> A_SHIFT;
1.2215 +
1.2216 + combine_mask_ca (&s, &m);
1.2217 +
1.2218 + sa = m;
1.2219 +
1.2220 + switch (combine & COMBINE_A)
1.2221 + {
1.2222 + default:
1.2223 + Fa = 0;
1.2224 + break;
1.2225 +
1.2226 + case COMBINE_A_OUT:
1.2227 + m = (uint32_t)combine_conjoint_out_part ((uint8_t) (sa >> 0), da);
1.2228 + n = (uint32_t)combine_conjoint_out_part ((uint8_t) (sa >> G_SHIFT), da) << G_SHIFT;
1.2229 + o = (uint32_t)combine_conjoint_out_part ((uint8_t) (sa >> R_SHIFT), da) << R_SHIFT;
1.2230 + p = (uint32_t)combine_conjoint_out_part ((uint8_t) (sa >> A_SHIFT), da) << A_SHIFT;
1.2231 + Fa = m | n | o | p;
1.2232 + break;
1.2233 +
1.2234 + case COMBINE_A_IN:
1.2235 + m = (uint32_t)combine_conjoint_in_part ((uint8_t) (sa >> 0), da);
1.2236 + n = (uint32_t)combine_conjoint_in_part ((uint8_t) (sa >> G_SHIFT), da) << G_SHIFT;
1.2237 + o = (uint32_t)combine_conjoint_in_part ((uint8_t) (sa >> R_SHIFT), da) << R_SHIFT;
1.2238 + p = (uint32_t)combine_conjoint_in_part ((uint8_t) (sa >> A_SHIFT), da) << A_SHIFT;
1.2239 + Fa = m | n | o | p;
1.2240 + break;
1.2241 +
1.2242 + case COMBINE_A:
1.2243 + Fa = ~0;
1.2244 + break;
1.2245 + }
1.2246 +
1.2247 + switch (combine & COMBINE_B)
1.2248 + {
1.2249 + default:
1.2250 + Fb = 0;
1.2251 + break;
1.2252 +
1.2253 + case COMBINE_B_OUT:
1.2254 + m = (uint32_t)combine_conjoint_out_part (da, (uint8_t) (sa >> 0));
1.2255 + n = (uint32_t)combine_conjoint_out_part (da, (uint8_t) (sa >> G_SHIFT)) << G_SHIFT;
1.2256 + o = (uint32_t)combine_conjoint_out_part (da, (uint8_t) (sa >> R_SHIFT)) << R_SHIFT;
1.2257 + p = (uint32_t)combine_conjoint_out_part (da, (uint8_t) (sa >> A_SHIFT)) << A_SHIFT;
1.2258 + Fb = m | n | o | p;
1.2259 + break;
1.2260 +
1.2261 + case COMBINE_B_IN:
1.2262 + m = (uint32_t)combine_conjoint_in_part (da, (uint8_t) (sa >> 0));
1.2263 + n = (uint32_t)combine_conjoint_in_part (da, (uint8_t) (sa >> G_SHIFT)) << G_SHIFT;
1.2264 + o = (uint32_t)combine_conjoint_in_part (da, (uint8_t) (sa >> R_SHIFT)) << R_SHIFT;
1.2265 + p = (uint32_t)combine_conjoint_in_part (da, (uint8_t) (sa >> A_SHIFT)) << A_SHIFT;
1.2266 + Fb = m | n | o | p;
1.2267 + break;
1.2268 +
1.2269 + case COMBINE_B:
1.2270 + Fb = ~0;
1.2271 + break;
1.2272 + }
1.2273 + m = GENERIC (s, d, 0, GET_COMP (Fa, 0), GET_COMP (Fb, 0), t, u, v);
1.2274 + n = GENERIC (s, d, G_SHIFT, GET_COMP (Fa, G_SHIFT), GET_COMP (Fb, G_SHIFT), t, u, v);
1.2275 + o = GENERIC (s, d, R_SHIFT, GET_COMP (Fa, R_SHIFT), GET_COMP (Fb, R_SHIFT), t, u, v);
1.2276 + p = GENERIC (s, d, A_SHIFT, GET_COMP (Fa, A_SHIFT), GET_COMP (Fb, A_SHIFT), t, u, v);
1.2277 +
1.2278 + s = m | n | o | p;
1.2279 +
1.2280 + *(dest + i) = s;
1.2281 + }
1.2282 +}
1.2283 +
1.2284 +static void
1.2285 +combine_conjoint_over_ca (pixman_implementation_t *imp,
1.2286 + pixman_op_t op,
1.2287 + uint32_t * dest,
1.2288 + const uint32_t * src,
1.2289 + const uint32_t * mask,
1.2290 + int width)
1.2291 +{
1.2292 + combine_conjoint_general_ca (dest, src, mask, width, COMBINE_A_OVER);
1.2293 +}
1.2294 +
1.2295 +static void
1.2296 +combine_conjoint_over_reverse_ca (pixman_implementation_t *imp,
1.2297 + pixman_op_t op,
1.2298 + uint32_t * dest,
1.2299 + const uint32_t * src,
1.2300 + const uint32_t * mask,
1.2301 + int width)
1.2302 +{
1.2303 + combine_conjoint_general_ca (dest, src, mask, width, COMBINE_B_OVER);
1.2304 +}
1.2305 +
1.2306 +static void
1.2307 +combine_conjoint_in_ca (pixman_implementation_t *imp,
1.2308 + pixman_op_t op,
1.2309 + uint32_t * dest,
1.2310 + const uint32_t * src,
1.2311 + const uint32_t * mask,
1.2312 + int width)
1.2313 +{
1.2314 + combine_conjoint_general_ca (dest, src, mask, width, COMBINE_A_IN);
1.2315 +}
1.2316 +
1.2317 +static void
1.2318 +combine_conjoint_in_reverse_ca (pixman_implementation_t *imp,
1.2319 + pixman_op_t op,
1.2320 + uint32_t * dest,
1.2321 + const uint32_t * src,
1.2322 + const uint32_t * mask,
1.2323 + int width)
1.2324 +{
1.2325 + combine_conjoint_general_ca (dest, src, mask, width, COMBINE_B_IN);
1.2326 +}
1.2327 +
1.2328 +static void
1.2329 +combine_conjoint_out_ca (pixman_implementation_t *imp,
1.2330 + pixman_op_t op,
1.2331 + uint32_t * dest,
1.2332 + const uint32_t * src,
1.2333 + const uint32_t * mask,
1.2334 + int width)
1.2335 +{
1.2336 + combine_conjoint_general_ca (dest, src, mask, width, COMBINE_A_OUT);
1.2337 +}
1.2338 +
1.2339 +static void
1.2340 +combine_conjoint_out_reverse_ca (pixman_implementation_t *imp,
1.2341 + pixman_op_t op,
1.2342 + uint32_t * dest,
1.2343 + const uint32_t * src,
1.2344 + const uint32_t * mask,
1.2345 + int width)
1.2346 +{
1.2347 + combine_conjoint_general_ca (dest, src, mask, width, COMBINE_B_OUT);
1.2348 +}
1.2349 +
1.2350 +static void
1.2351 +combine_conjoint_atop_ca (pixman_implementation_t *imp,
1.2352 + pixman_op_t op,
1.2353 + uint32_t * dest,
1.2354 + const uint32_t * src,
1.2355 + const uint32_t * mask,
1.2356 + int width)
1.2357 +{
1.2358 + combine_conjoint_general_ca (dest, src, mask, width, COMBINE_A_ATOP);
1.2359 +}
1.2360 +
1.2361 +static void
1.2362 +combine_conjoint_atop_reverse_ca (pixman_implementation_t *imp,
1.2363 + pixman_op_t op,
1.2364 + uint32_t * dest,
1.2365 + const uint32_t * src,
1.2366 + const uint32_t * mask,
1.2367 + int width)
1.2368 +{
1.2369 + combine_conjoint_general_ca (dest, src, mask, width, COMBINE_B_ATOP);
1.2370 +}
1.2371 +
1.2372 +static void
1.2373 +combine_conjoint_xor_ca (pixman_implementation_t *imp,
1.2374 + pixman_op_t op,
1.2375 + uint32_t * dest,
1.2376 + const uint32_t * src,
1.2377 + const uint32_t * mask,
1.2378 + int width)
1.2379 +{
1.2380 + combine_conjoint_general_ca (dest, src, mask, width, COMBINE_XOR);
1.2381 +}
1.2382 +
1.2383 +void
1.2384 +_pixman_setup_combiner_functions_32 (pixman_implementation_t *imp)
1.2385 +{
1.2386 + /* Unified alpha */
1.2387 + imp->combine_32[PIXMAN_OP_CLEAR] = combine_clear;
1.2388 + imp->combine_32[PIXMAN_OP_SRC] = combine_src_u;
1.2389 + imp->combine_32[PIXMAN_OP_DST] = combine_dst;
1.2390 + imp->combine_32[PIXMAN_OP_OVER] = combine_over_u;
1.2391 + imp->combine_32[PIXMAN_OP_OVER_REVERSE] = combine_over_reverse_u;
1.2392 + imp->combine_32[PIXMAN_OP_IN] = combine_in_u;
1.2393 + imp->combine_32[PIXMAN_OP_IN_REVERSE] = combine_in_reverse_u;
1.2394 + imp->combine_32[PIXMAN_OP_OUT] = combine_out_u;
1.2395 + imp->combine_32[PIXMAN_OP_OUT_REVERSE] = combine_out_reverse_u;
1.2396 + imp->combine_32[PIXMAN_OP_ATOP] = combine_atop_u;
1.2397 + imp->combine_32[PIXMAN_OP_ATOP_REVERSE] = combine_atop_reverse_u;
1.2398 + imp->combine_32[PIXMAN_OP_XOR] = combine_xor_u;
1.2399 + imp->combine_32[PIXMAN_OP_ADD] = combine_add_u;
1.2400 + imp->combine_32[PIXMAN_OP_SATURATE] = combine_saturate_u;
1.2401 +
1.2402 + /* Disjoint, unified */
1.2403 + imp->combine_32[PIXMAN_OP_DISJOINT_CLEAR] = combine_clear;
1.2404 + imp->combine_32[PIXMAN_OP_DISJOINT_SRC] = combine_src_u;
1.2405 + imp->combine_32[PIXMAN_OP_DISJOINT_DST] = combine_dst;
1.2406 + imp->combine_32[PIXMAN_OP_DISJOINT_OVER] = combine_disjoint_over_u;
1.2407 + imp->combine_32[PIXMAN_OP_DISJOINT_OVER_REVERSE] = combine_saturate_u;
1.2408 + imp->combine_32[PIXMAN_OP_DISJOINT_IN] = combine_disjoint_in_u;
1.2409 + imp->combine_32[PIXMAN_OP_DISJOINT_IN_REVERSE] = combine_disjoint_in_reverse_u;
1.2410 + imp->combine_32[PIXMAN_OP_DISJOINT_OUT] = combine_disjoint_out_u;
1.2411 + imp->combine_32[PIXMAN_OP_DISJOINT_OUT_REVERSE] = combine_disjoint_out_reverse_u;
1.2412 + imp->combine_32[PIXMAN_OP_DISJOINT_ATOP] = combine_disjoint_atop_u;
1.2413 + imp->combine_32[PIXMAN_OP_DISJOINT_ATOP_REVERSE] = combine_disjoint_atop_reverse_u;
1.2414 + imp->combine_32[PIXMAN_OP_DISJOINT_XOR] = combine_disjoint_xor_u;
1.2415 +
1.2416 + /* Conjoint, unified */
1.2417 + imp->combine_32[PIXMAN_OP_CONJOINT_CLEAR] = combine_clear;
1.2418 + imp->combine_32[PIXMAN_OP_CONJOINT_SRC] = combine_src_u;
1.2419 + imp->combine_32[PIXMAN_OP_CONJOINT_DST] = combine_dst;
1.2420 + imp->combine_32[PIXMAN_OP_CONJOINT_OVER] = combine_conjoint_over_u;
1.2421 + imp->combine_32[PIXMAN_OP_CONJOINT_OVER_REVERSE] = combine_conjoint_over_reverse_u;
1.2422 + imp->combine_32[PIXMAN_OP_CONJOINT_IN] = combine_conjoint_in_u;
1.2423 + imp->combine_32[PIXMAN_OP_CONJOINT_IN_REVERSE] = combine_conjoint_in_reverse_u;
1.2424 + imp->combine_32[PIXMAN_OP_CONJOINT_OUT] = combine_conjoint_out_u;
1.2425 + imp->combine_32[PIXMAN_OP_CONJOINT_OUT_REVERSE] = combine_conjoint_out_reverse_u;
1.2426 + imp->combine_32[PIXMAN_OP_CONJOINT_ATOP] = combine_conjoint_atop_u;
1.2427 + imp->combine_32[PIXMAN_OP_CONJOINT_ATOP_REVERSE] = combine_conjoint_atop_reverse_u;
1.2428 + imp->combine_32[PIXMAN_OP_CONJOINT_XOR] = combine_conjoint_xor_u;
1.2429 +
1.2430 + imp->combine_32[PIXMAN_OP_MULTIPLY] = combine_multiply_u;
1.2431 + imp->combine_32[PIXMAN_OP_SCREEN] = combine_screen_u;
1.2432 + imp->combine_32[PIXMAN_OP_OVERLAY] = combine_overlay_u;
1.2433 + imp->combine_32[PIXMAN_OP_DARKEN] = combine_darken_u;
1.2434 + imp->combine_32[PIXMAN_OP_LIGHTEN] = combine_lighten_u;
1.2435 + imp->combine_32[PIXMAN_OP_COLOR_DODGE] = combine_color_dodge_u;
1.2436 + imp->combine_32[PIXMAN_OP_COLOR_BURN] = combine_color_burn_u;
1.2437 + imp->combine_32[PIXMAN_OP_HARD_LIGHT] = combine_hard_light_u;
1.2438 + imp->combine_32[PIXMAN_OP_SOFT_LIGHT] = combine_soft_light_u;
1.2439 + imp->combine_32[PIXMAN_OP_DIFFERENCE] = combine_difference_u;
1.2440 + imp->combine_32[PIXMAN_OP_EXCLUSION] = combine_exclusion_u;
1.2441 + imp->combine_32[PIXMAN_OP_HSL_HUE] = combine_hsl_hue_u;
1.2442 + imp->combine_32[PIXMAN_OP_HSL_SATURATION] = combine_hsl_saturation_u;
1.2443 + imp->combine_32[PIXMAN_OP_HSL_COLOR] = combine_hsl_color_u;
1.2444 + imp->combine_32[PIXMAN_OP_HSL_LUMINOSITY] = combine_hsl_luminosity_u;
1.2445 +
1.2446 + /* Component alpha combiners */
1.2447 + imp->combine_32_ca[PIXMAN_OP_CLEAR] = combine_clear_ca;
1.2448 + imp->combine_32_ca[PIXMAN_OP_SRC] = combine_src_ca;
1.2449 + /* dest */
1.2450 + imp->combine_32_ca[PIXMAN_OP_OVER] = combine_over_ca;
1.2451 + imp->combine_32_ca[PIXMAN_OP_OVER_REVERSE] = combine_over_reverse_ca;
1.2452 + imp->combine_32_ca[PIXMAN_OP_IN] = combine_in_ca;
1.2453 + imp->combine_32_ca[PIXMAN_OP_IN_REVERSE] = combine_in_reverse_ca;
1.2454 + imp->combine_32_ca[PIXMAN_OP_OUT] = combine_out_ca;
1.2455 + imp->combine_32_ca[PIXMAN_OP_OUT_REVERSE] = combine_out_reverse_ca;
1.2456 + imp->combine_32_ca[PIXMAN_OP_ATOP] = combine_atop_ca;
1.2457 + imp->combine_32_ca[PIXMAN_OP_ATOP_REVERSE] = combine_atop_reverse_ca;
1.2458 + imp->combine_32_ca[PIXMAN_OP_XOR] = combine_xor_ca;
1.2459 + imp->combine_32_ca[PIXMAN_OP_ADD] = combine_add_ca;
1.2460 + imp->combine_32_ca[PIXMAN_OP_SATURATE] = combine_saturate_ca;
1.2461 +
1.2462 + /* Disjoint CA */
1.2463 + imp->combine_32_ca[PIXMAN_OP_DISJOINT_CLEAR] = combine_clear_ca;
1.2464 + imp->combine_32_ca[PIXMAN_OP_DISJOINT_SRC] = combine_src_ca;
1.2465 + imp->combine_32_ca[PIXMAN_OP_DISJOINT_DST] = combine_dst;
1.2466 + imp->combine_32_ca[PIXMAN_OP_DISJOINT_OVER] = combine_disjoint_over_ca;
1.2467 + imp->combine_32_ca[PIXMAN_OP_DISJOINT_OVER_REVERSE] = combine_saturate_ca;
1.2468 + imp->combine_32_ca[PIXMAN_OP_DISJOINT_IN] = combine_disjoint_in_ca;
1.2469 + imp->combine_32_ca[PIXMAN_OP_DISJOINT_IN_REVERSE] = combine_disjoint_in_reverse_ca;
1.2470 + imp->combine_32_ca[PIXMAN_OP_DISJOINT_OUT] = combine_disjoint_out_ca;
1.2471 + imp->combine_32_ca[PIXMAN_OP_DISJOINT_OUT_REVERSE] = combine_disjoint_out_reverse_ca;
1.2472 + imp->combine_32_ca[PIXMAN_OP_DISJOINT_ATOP] = combine_disjoint_atop_ca;
1.2473 + imp->combine_32_ca[PIXMAN_OP_DISJOINT_ATOP_REVERSE] = combine_disjoint_atop_reverse_ca;
1.2474 + imp->combine_32_ca[PIXMAN_OP_DISJOINT_XOR] = combine_disjoint_xor_ca;
1.2475 +
1.2476 + /* Conjoint CA */
1.2477 + imp->combine_32_ca[PIXMAN_OP_CONJOINT_CLEAR] = combine_clear_ca;
1.2478 + imp->combine_32_ca[PIXMAN_OP_CONJOINT_SRC] = combine_src_ca;
1.2479 + imp->combine_32_ca[PIXMAN_OP_CONJOINT_DST] = combine_dst;
1.2480 + imp->combine_32_ca[PIXMAN_OP_CONJOINT_OVER] = combine_conjoint_over_ca;
1.2481 + imp->combine_32_ca[PIXMAN_OP_CONJOINT_OVER_REVERSE] = combine_conjoint_over_reverse_ca;
1.2482 + imp->combine_32_ca[PIXMAN_OP_CONJOINT_IN] = combine_conjoint_in_ca;
1.2483 + imp->combine_32_ca[PIXMAN_OP_CONJOINT_IN_REVERSE] = combine_conjoint_in_reverse_ca;
1.2484 + imp->combine_32_ca[PIXMAN_OP_CONJOINT_OUT] = combine_conjoint_out_ca;
1.2485 + imp->combine_32_ca[PIXMAN_OP_CONJOINT_OUT_REVERSE] = combine_conjoint_out_reverse_ca;
1.2486 + imp->combine_32_ca[PIXMAN_OP_CONJOINT_ATOP] = combine_conjoint_atop_ca;
1.2487 + imp->combine_32_ca[PIXMAN_OP_CONJOINT_ATOP_REVERSE] = combine_conjoint_atop_reverse_ca;
1.2488 + imp->combine_32_ca[PIXMAN_OP_CONJOINT_XOR] = combine_conjoint_xor_ca;
1.2489 +
1.2490 + imp->combine_32_ca[PIXMAN_OP_MULTIPLY] = combine_multiply_ca;
1.2491 + imp->combine_32_ca[PIXMAN_OP_SCREEN] = combine_screen_ca;
1.2492 + imp->combine_32_ca[PIXMAN_OP_OVERLAY] = combine_overlay_ca;
1.2493 + imp->combine_32_ca[PIXMAN_OP_DARKEN] = combine_darken_ca;
1.2494 + imp->combine_32_ca[PIXMAN_OP_LIGHTEN] = combine_lighten_ca;
1.2495 + imp->combine_32_ca[PIXMAN_OP_COLOR_DODGE] = combine_color_dodge_ca;
1.2496 + imp->combine_32_ca[PIXMAN_OP_COLOR_BURN] = combine_color_burn_ca;
1.2497 + imp->combine_32_ca[PIXMAN_OP_HARD_LIGHT] = combine_hard_light_ca;
1.2498 + imp->combine_32_ca[PIXMAN_OP_SOFT_LIGHT] = combine_soft_light_ca;
1.2499 + imp->combine_32_ca[PIXMAN_OP_DIFFERENCE] = combine_difference_ca;
1.2500 + imp->combine_32_ca[PIXMAN_OP_EXCLUSION] = combine_exclusion_ca;
1.2501 +
1.2502 + /* It is not clear that these make sense, so make them noops for now */
1.2503 + imp->combine_32_ca[PIXMAN_OP_HSL_HUE] = combine_dst;
1.2504 + imp->combine_32_ca[PIXMAN_OP_HSL_SATURATION] = combine_dst;
1.2505 + imp->combine_32_ca[PIXMAN_OP_HSL_COLOR] = combine_dst;
1.2506 + imp->combine_32_ca[PIXMAN_OP_HSL_LUMINOSITY] = combine_dst;
1.2507 +}
