1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/skia/trunk/src/core/SkBitmapProcState_procs.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,343 @@
1.4 +
1.5 +/*
1.6 + * Copyright 2011 Google Inc.
1.7 + *
1.8 + * Use of this source code is governed by a BSD-style license that can be
1.9 + * found in the LICENSE file.
1.10 + */
1.11 +
1.12 +// Define NAME_WRAP(x) before including this header to perform name-wrapping
1.13 +// E.g. for ARM NEON, defined it as 'x ## _neon' to ensure all important
1.14 +// identifiers have a _neon suffix.
1.15 +#ifndef NAME_WRAP
1.16 +#error "Please define NAME_WRAP() before including this file"
1.17 +#endif
1.18 +
1.19 +// returns expanded * 5bits
1.20 +static inline uint32_t Filter_565_Expanded(unsigned x, unsigned y,
1.21 + uint32_t a00, uint32_t a01,
1.22 + uint32_t a10, uint32_t a11) {
1.23 + SkASSERT((unsigned)x <= 0xF);
1.24 + SkASSERT((unsigned)y <= 0xF);
1.25 +
1.26 + a00 = SkExpand_rgb_16(a00);
1.27 + a01 = SkExpand_rgb_16(a01);
1.28 + a10 = SkExpand_rgb_16(a10);
1.29 + a11 = SkExpand_rgb_16(a11);
1.30 +
1.31 + int xy = x * y >> 3;
1.32 + return a00 * (32 - 2*y - 2*x + xy) +
1.33 + a01 * (2*x - xy) +
1.34 + a10 * (2*y - xy) +
1.35 + a11 * xy;
1.36 +}
1.37 +
1.38 +// turn an expanded 565 * 5bits into SkPMColor
1.39 +// g:11 | r:10 | x:1 | b:10
1.40 +static inline SkPMColor SkExpanded_565_To_PMColor(uint32_t c) {
1.41 + unsigned r = (c >> 13) & 0xFF;
1.42 + unsigned g = (c >> 24);
1.43 + unsigned b = (c >> 2) & 0xFF;
1.44 + return SkPackARGB32(0xFF, r, g, b);
1.45 +}
1.46 +
1.47 +// returns answer in SkPMColor format
1.48 +static inline SkPMColor Filter_4444_D32(unsigned x, unsigned y,
1.49 + uint32_t a00, uint32_t a01,
1.50 + uint32_t a10, uint32_t a11) {
1.51 + SkASSERT((unsigned)x <= 0xF);
1.52 + SkASSERT((unsigned)y <= 0xF);
1.53 +
1.54 + a00 = SkExpand_4444(a00);
1.55 + a01 = SkExpand_4444(a01);
1.56 + a10 = SkExpand_4444(a10);
1.57 + a11 = SkExpand_4444(a11);
1.58 +
1.59 + int xy = x * y >> 4;
1.60 + uint32_t result = a00 * (16 - y - x + xy) +
1.61 + a01 * (x - xy) +
1.62 + a10 * (y - xy) +
1.63 + a11 * xy;
1.64 +
1.65 + return SkCompact_8888(result);
1.66 +}
1.67 +
1.68 +static inline U8CPU Filter_8(unsigned x, unsigned y,
1.69 + U8CPU a00, U8CPU a01,
1.70 + U8CPU a10, U8CPU a11) {
1.71 + SkASSERT((unsigned)x <= 0xF);
1.72 + SkASSERT((unsigned)y <= 0xF);
1.73 +
1.74 + int xy = x * y;
1.75 + unsigned result = a00 * (256 - 16*y - 16*x + xy) +
1.76 + a01 * (16*x - xy) +
1.77 + a10 * (16*y - xy) +
1.78 + a11 * xy;
1.79 +
1.80 + return result >> 8;
1.81 +}
1.82 +
1.83 +/*****************************************************************************
1.84 + *
1.85 + * D32 functions
1.86 + *
1.87 + */
1.88 +
1.89 +// SRC == 8888
1.90 +
1.91 +#define FILTER_PROC(x, y, a, b, c, d, dst) NAME_WRAP(Filter_32_opaque)(x, y, a, b, c, d, dst)
1.92 +
1.93 +#define MAKENAME(suffix) NAME_WRAP(S32_opaque_D32 ## suffix)
1.94 +#define DSTSIZE 32
1.95 +#define SRCTYPE SkPMColor
1.96 +#define CHECKSTATE(state) SkASSERT(state.fBitmap->config() == SkBitmap::kARGB_8888_Config); \
1.97 + SkASSERT(state.fAlphaScale == 256)
1.98 +#define RETURNDST(src) src
1.99 +#define SRC_TO_FILTER(src) src
1.100 +#include "SkBitmapProcState_sample.h"
1.101 +
1.102 +#undef FILTER_PROC
1.103 +#define FILTER_PROC(x, y, a, b, c, d, dst) NAME_WRAP(Filter_32_alpha)(x, y, a, b, c, d, dst, alphaScale)
1.104 +
1.105 +#define MAKENAME(suffix) NAME_WRAP(S32_alpha_D32 ## suffix)
1.106 +#define DSTSIZE 32
1.107 +#define SRCTYPE SkPMColor
1.108 +#define CHECKSTATE(state) SkASSERT(state.fBitmap->config() == SkBitmap::kARGB_8888_Config); \
1.109 + SkASSERT(state.fAlphaScale < 256)
1.110 +#define PREAMBLE(state) unsigned alphaScale = state.fAlphaScale
1.111 +#define RETURNDST(src) SkAlphaMulQ(src, alphaScale)
1.112 +#define SRC_TO_FILTER(src) src
1.113 +#include "SkBitmapProcState_sample.h"
1.114 +
1.115 +// SRC == 565
1.116 +
1.117 +#undef FILTER_PROC
1.118 +#define FILTER_PROC(x, y, a, b, c, d, dst) \
1.119 + do { \
1.120 + uint32_t tmp = Filter_565_Expanded(x, y, a, b, c, d); \
1.121 + *(dst) = SkExpanded_565_To_PMColor(tmp); \
1.122 + } while (0)
1.123 +
1.124 +#define MAKENAME(suffix) NAME_WRAP(S16_opaque_D32 ## suffix)
1.125 +#define DSTSIZE 32
1.126 +#define SRCTYPE uint16_t
1.127 +#define CHECKSTATE(state) SkASSERT(state.fBitmap->config() == SkBitmap::kRGB_565_Config); \
1.128 + SkASSERT(state.fAlphaScale == 256)
1.129 +#define RETURNDST(src) SkPixel16ToPixel32(src)
1.130 +#define SRC_TO_FILTER(src) src
1.131 +#include "SkBitmapProcState_sample.h"
1.132 +
1.133 +#undef FILTER_PROC
1.134 +#define FILTER_PROC(x, y, a, b, c, d, dst) \
1.135 + do { \
1.136 + uint32_t tmp = Filter_565_Expanded(x, y, a, b, c, d); \
1.137 + *(dst) = SkAlphaMulQ(SkExpanded_565_To_PMColor(tmp), alphaScale); \
1.138 + } while (0)
1.139 +
1.140 +#define MAKENAME(suffix) NAME_WRAP(S16_alpha_D32 ## suffix)
1.141 +#define DSTSIZE 32
1.142 +#define SRCTYPE uint16_t
1.143 +#define CHECKSTATE(state) SkASSERT(state.fBitmap->config() == SkBitmap::kRGB_565_Config); \
1.144 + SkASSERT(state.fAlphaScale < 256)
1.145 +#define PREAMBLE(state) unsigned alphaScale = state.fAlphaScale
1.146 +#define RETURNDST(src) SkAlphaMulQ(SkPixel16ToPixel32(src), alphaScale)
1.147 +#define SRC_TO_FILTER(src) src
1.148 +#include "SkBitmapProcState_sample.h"
1.149 +
1.150 +// SRC == Index8
1.151 +
1.152 +#undef FILTER_PROC
1.153 +#define FILTER_PROC(x, y, a, b, c, d, dst) NAME_WRAP(Filter_32_opaque)(x, y, a, b, c, d, dst)
1.154 +
1.155 +#define MAKENAME(suffix) NAME_WRAP(SI8_opaque_D32 ## suffix)
1.156 +#define DSTSIZE 32
1.157 +#define SRCTYPE uint8_t
1.158 +#define CHECKSTATE(state) SkASSERT(state.fBitmap->config() == SkBitmap::kIndex8_Config); \
1.159 + SkASSERT(state.fAlphaScale == 256)
1.160 +#define PREAMBLE(state) const SkPMColor* SK_RESTRICT table = state.fBitmap->getColorTable()->lockColors()
1.161 +#define RETURNDST(src) table[src]
1.162 +#define SRC_TO_FILTER(src) table[src]
1.163 +#define POSTAMBLE(state) state.fBitmap->getColorTable()->unlockColors()
1.164 +#include "SkBitmapProcState_sample.h"
1.165 +
1.166 +#undef FILTER_PROC
1.167 +#define FILTER_PROC(x, y, a, b, c, d, dst) NAME_WRAP(Filter_32_alpha)(x, y, a, b, c, d, dst, alphaScale)
1.168 +
1.169 +#define MAKENAME(suffix) NAME_WRAP(SI8_alpha_D32 ## suffix)
1.170 +#define DSTSIZE 32
1.171 +#define SRCTYPE uint8_t
1.172 +#define CHECKSTATE(state) SkASSERT(state.fBitmap->config() == SkBitmap::kIndex8_Config); \
1.173 + SkASSERT(state.fAlphaScale < 256)
1.174 +#define PREAMBLE(state) unsigned alphaScale = state.fAlphaScale; \
1.175 + const SkPMColor* SK_RESTRICT table = state.fBitmap->getColorTable()->lockColors()
1.176 +#define RETURNDST(src) SkAlphaMulQ(table[src], alphaScale)
1.177 +#define SRC_TO_FILTER(src) table[src]
1.178 +#define POSTAMBLE(state) state.fBitmap->getColorTable()->unlockColors()
1.179 +#include "SkBitmapProcState_sample.h"
1.180 +
1.181 +// SRC == 4444
1.182 +
1.183 +#undef FILTER_PROC
1.184 +#define FILTER_PROC(x, y, a, b, c, d, dst) *(dst) = Filter_4444_D32(x, y, a, b, c, d)
1.185 +
1.186 +#define MAKENAME(suffix) NAME_WRAP(S4444_opaque_D32 ## suffix)
1.187 +#define DSTSIZE 32
1.188 +#define SRCTYPE SkPMColor16
1.189 +#define CHECKSTATE(state) SkASSERT(state.fBitmap->config() == SkBitmap::kARGB_4444_Config); \
1.190 + SkASSERT(state.fAlphaScale == 256)
1.191 +#define RETURNDST(src) SkPixel4444ToPixel32(src)
1.192 +#define SRC_TO_FILTER(src) src
1.193 +#include "SkBitmapProcState_sample.h"
1.194 +
1.195 +#undef FILTER_PROC
1.196 +#define FILTER_PROC(x, y, a, b, c, d, dst) \
1.197 + do { \
1.198 + uint32_t tmp = Filter_4444_D32(x, y, a, b, c, d); \
1.199 + *(dst) = SkAlphaMulQ(tmp, alphaScale); \
1.200 + } while (0)
1.201 +
1.202 +#define MAKENAME(suffix) NAME_WRAP(S4444_alpha_D32 ## suffix)
1.203 +#define DSTSIZE 32
1.204 +#define SRCTYPE SkPMColor16
1.205 +#define CHECKSTATE(state) SkASSERT(state.fBitmap->config() == SkBitmap::kARGB_4444_Config); \
1.206 + SkASSERT(state.fAlphaScale < 256)
1.207 +#define PREAMBLE(state) unsigned alphaScale = state.fAlphaScale
1.208 +#define RETURNDST(src) SkAlphaMulQ(SkPixel4444ToPixel32(src), alphaScale)
1.209 +#define SRC_TO_FILTER(src) src
1.210 +#include "SkBitmapProcState_sample.h"
1.211 +
1.212 +// SRC == A8
1.213 +
1.214 +#undef FILTER_PROC
1.215 +#define FILTER_PROC(x, y, a, b, c, d, dst) \
1.216 + do { \
1.217 + unsigned tmp = Filter_8(x, y, a, b, c, d); \
1.218 + *(dst) = SkAlphaMulQ(pmColor, SkAlpha255To256(tmp)); \
1.219 + } while (0)
1.220 +
1.221 +#define MAKENAME(suffix) NAME_WRAP(SA8_alpha_D32 ## suffix)
1.222 +#define DSTSIZE 32
1.223 +#define SRCTYPE uint8_t
1.224 +#define CHECKSTATE(state) SkASSERT(state.fBitmap->config() == SkBitmap::kA8_Config);
1.225 +#define PREAMBLE(state) const SkPMColor pmColor = state.fPaintPMColor;
1.226 +#define RETURNDST(src) SkAlphaMulQ(pmColor, SkAlpha255To256(src))
1.227 +#define SRC_TO_FILTER(src) src
1.228 +#include "SkBitmapProcState_sample.h"
1.229 +
1.230 +/*****************************************************************************
1.231 + *
1.232 + * D16 functions
1.233 + *
1.234 + */
1.235 +
1.236 +// SRC == 8888
1.237 +
1.238 +#undef FILTER_PROC
1.239 +#define FILTER_PROC(x, y, a, b, c, d, dst) \
1.240 + do { \
1.241 + SkPMColor dstColor; \
1.242 + NAME_WRAP(Filter_32_opaque)(x, y, a, b, c, d, &dstColor); \
1.243 + (*dst) = SkPixel32ToPixel16(dstColor); \
1.244 + } while (0)
1.245 +
1.246 +#define MAKENAME(suffix) NAME_WRAP(S32_D16 ## suffix)
1.247 +#define DSTSIZE 16
1.248 +#define SRCTYPE SkPMColor
1.249 +#define CHECKSTATE(state) SkASSERT(state.fBitmap->config() == SkBitmap::kARGB_8888_Config); \
1.250 + SkASSERT(state.fBitmap->isOpaque())
1.251 +#define RETURNDST(src) SkPixel32ToPixel16(src)
1.252 +#define SRC_TO_FILTER(src) src
1.253 +#include "SkBitmapProcState_sample.h"
1.254 +
1.255 +// SRC == 565
1.256 +
1.257 +#undef FILTER_PROC
1.258 +#define FILTER_PROC(x, y, a, b, c, d, dst) \
1.259 + do { \
1.260 + uint32_t tmp = Filter_565_Expanded(x, y, a, b, c, d); \
1.261 + *(dst) = SkCompact_rgb_16((tmp) >> 5); \
1.262 + } while (0)
1.263 +
1.264 +#define MAKENAME(suffix) NAME_WRAP(S16_D16 ## suffix)
1.265 +#define DSTSIZE 16
1.266 +#define SRCTYPE uint16_t
1.267 +#define CHECKSTATE(state) SkASSERT(state.fBitmap->config() == SkBitmap::kRGB_565_Config)
1.268 +#define RETURNDST(src) src
1.269 +#define SRC_TO_FILTER(src) src
1.270 +#include "SkBitmapProcState_sample.h"
1.271 +
1.272 +// SRC == Index8
1.273 +
1.274 +#undef FILTER_PROC
1.275 +#define FILTER_PROC(x, y, a, b, c, d, dst) \
1.276 + do { \
1.277 + uint32_t tmp = Filter_565_Expanded(x, y, a, b, c, d); \
1.278 + *(dst) = SkCompact_rgb_16((tmp) >> 5); \
1.279 + } while (0)
1.280 +
1.281 +#define MAKENAME(suffix) NAME_WRAP(SI8_D16 ## suffix)
1.282 +#define DSTSIZE 16
1.283 +#define SRCTYPE uint8_t
1.284 +#define CHECKSTATE(state) SkASSERT(state.fBitmap->config() == SkBitmap::kIndex8_Config); \
1.285 + SkASSERT(state.fBitmap->isOpaque())
1.286 +#define PREAMBLE(state) const uint16_t* SK_RESTRICT table = state.fBitmap->getColorTable()->lock16BitCache()
1.287 +#define RETURNDST(src) table[src]
1.288 +#define SRC_TO_FILTER(src) table[src]
1.289 +#define POSTAMBLE(state) state.fBitmap->getColorTable()->unlock16BitCache()
1.290 +#include "SkBitmapProcState_sample.h"
1.291 +
1.292 +///////////////////////////////////////////////////////////////////////////////
1.293 +
1.294 +#undef FILTER_PROC
1.295 +#define FILTER_PROC(x, y, a, b, c, d, dst) \
1.296 + do { \
1.297 + uint32_t tmp = Filter_565_Expanded(x, y, a, b, c, d); \
1.298 + *(dst) = SkCompact_rgb_16((tmp) >> 5); \
1.299 + } while (0)
1.300 +
1.301 +
1.302 +// clamp
1.303 +
1.304 +#define TILEX_PROCF(fx, max) SkClampMax((fx) >> 16, max)
1.305 +#define TILEY_PROCF(fy, max) SkClampMax((fy) >> 16, max)
1.306 +#define TILEX_LOW_BITS(fx, max) (((fx) >> 12) & 0xF)
1.307 +#define TILEY_LOW_BITS(fy, max) (((fy) >> 12) & 0xF)
1.308 +
1.309 +#define MAKENAME(suffix) NAME_WRAP(Clamp_S16_D16 ## suffix)
1.310 +#define SRCTYPE uint16_t
1.311 +#define DSTTYPE uint16_t
1.312 +#define CHECKSTATE(state) SkASSERT(state.fBitmap->config() == SkBitmap::kRGB_565_Config)
1.313 +#define SRC_TO_FILTER(src) src
1.314 +#include "SkBitmapProcState_shaderproc.h"
1.315 +
1.316 +
1.317 +#define TILEX_PROCF(fx, max) (((fx) & 0xFFFF) * ((max) + 1) >> 16)
1.318 +#define TILEY_PROCF(fy, max) (((fy) & 0xFFFF) * ((max) + 1) >> 16)
1.319 +#define TILEX_LOW_BITS(fx, max) ((((fx) & 0xFFFF) * ((max) + 1) >> 12) & 0xF)
1.320 +#define TILEY_LOW_BITS(fy, max) ((((fy) & 0xFFFF) * ((max) + 1) >> 12) & 0xF)
1.321 +
1.322 +#define MAKENAME(suffix) NAME_WRAP(Repeat_S16_D16 ## suffix)
1.323 +#define SRCTYPE uint16_t
1.324 +#define DSTTYPE uint16_t
1.325 +#define CHECKSTATE(state) SkASSERT(state.fBitmap->config() == SkBitmap::kRGB_565_Config)
1.326 +#define SRC_TO_FILTER(src) src
1.327 +#include "SkBitmapProcState_shaderproc.h"
1.328 +
1.329 +
1.330 +#define TILEX_PROCF(fx, max) SkClampMax((fx) >> 16, max)
1.331 +#define TILEY_PROCF(fy, max) SkClampMax((fy) >> 16, max)
1.332 +#define TILEX_LOW_BITS(fx, max) (((fx) >> 12) & 0xF)
1.333 +#define TILEY_LOW_BITS(fy, max) (((fy) >> 12) & 0xF)
1.334 +
1.335 +#undef FILTER_PROC
1.336 +#define FILTER_PROC(x, y, a, b, c, d, dst) NAME_WRAP(Filter_32_opaque)(x, y, a, b, c, d, dst)
1.337 +#define MAKENAME(suffix) NAME_WRAP(Clamp_SI8_opaque_D32 ## suffix)
1.338 +#define SRCTYPE uint8_t
1.339 +#define DSTTYPE uint32_t
1.340 +#define CHECKSTATE(state) SkASSERT(state.fBitmap->config() == SkBitmap::kIndex8_Config)
1.341 +#define PREAMBLE(state) const SkPMColor* SK_RESTRICT table = state.fBitmap->getColorTable()->lockColors()
1.342 +#define SRC_TO_FILTER(src) table[src]
1.343 +#define POSTAMBLE(state) state.fBitmap->getColorTable()->unlockColors()
1.344 +#include "SkBitmapProcState_shaderproc.h"
1.345 +
1.346 +#undef NAME_WRAP
