epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 1 | |
| 2 | /* |
| 3 | * Copyright 2011 Google Inc. |
| 4 | * |
| 5 | * Use of this source code is governed by a BSD-style license that can be |
| 6 | * found in the LICENSE file. |
| 7 | */ |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 8 | #include "SkBitmapProcState.h" |
reed@android.com | 152f748 | 2009-08-07 19:14:34 +0000 | [diff] [blame] | 9 | #include "SkBitmapProcState_filter.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 10 | #include "SkColorPriv.h" |
| 11 | #include "SkFilterProc.h" |
| 12 | #include "SkPaint.h" |
| 13 | #include "SkShader.h" // for tilemodes |
| 14 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 15 | // returns expanded * 5bits |
| 16 | static inline uint32_t Filter_565_Expanded(unsigned x, unsigned y, |
| 17 | uint32_t a00, uint32_t a01, |
| 18 | uint32_t a10, uint32_t a11) { |
| 19 | SkASSERT((unsigned)x <= 0xF); |
| 20 | SkASSERT((unsigned)y <= 0xF); |
| 21 | |
| 22 | a00 = SkExpand_rgb_16(a00); |
| 23 | a01 = SkExpand_rgb_16(a01); |
| 24 | a10 = SkExpand_rgb_16(a10); |
| 25 | a11 = SkExpand_rgb_16(a11); |
| 26 | |
| 27 | int xy = x * y >> 3; |
| 28 | return a00 * (32 - 2*y - 2*x + xy) + |
| 29 | a01 * (2*x - xy) + |
| 30 | a10 * (2*y - xy) + |
| 31 | a11 * xy; |
| 32 | } |
| 33 | |
| 34 | // turn an expanded 565 * 5bits into SkPMColor |
| 35 | // g:11 | r:10 | x:1 | b:10 |
| 36 | static inline SkPMColor SkExpanded_565_To_PMColor(uint32_t c) { |
| 37 | unsigned r = (c >> 13) & 0xFF; |
| 38 | unsigned g = (c >> 24); |
| 39 | unsigned b = (c >> 2) & 0xFF; |
| 40 | return SkPackARGB32(0xFF, r, g, b); |
| 41 | } |
| 42 | |
| 43 | // returns answer in SkPMColor format |
| 44 | static inline SkPMColor Filter_4444_D32(unsigned x, unsigned y, |
| 45 | uint32_t a00, uint32_t a01, |
| 46 | uint32_t a10, uint32_t a11) { |
| 47 | SkASSERT((unsigned)x <= 0xF); |
| 48 | SkASSERT((unsigned)y <= 0xF); |
| 49 | |
| 50 | a00 = SkExpand_4444(a00); |
| 51 | a01 = SkExpand_4444(a01); |
| 52 | a10 = SkExpand_4444(a10); |
| 53 | a11 = SkExpand_4444(a11); |
| 54 | |
| 55 | int xy = x * y >> 4; |
| 56 | uint32_t result = a00 * (16 - y - x + xy) + |
| 57 | a01 * (x - xy) + |
| 58 | a10 * (y - xy) + |
| 59 | a11 * xy; |
| 60 | |
| 61 | return SkCompact_8888(result); |
| 62 | } |
| 63 | |
| 64 | static inline U8CPU Filter_8(unsigned x, unsigned y, |
| 65 | U8CPU a00, U8CPU a01, |
| 66 | U8CPU a10, U8CPU a11) { |
| 67 | SkASSERT((unsigned)x <= 0xF); |
| 68 | SkASSERT((unsigned)y <= 0xF); |
| 69 | |
| 70 | int xy = x * y; |
| 71 | unsigned result = a00 * (256 - 16*y - 16*x + xy) + |
| 72 | a01 * (16*x - xy) + |
| 73 | a10 * (16*y - xy) + |
| 74 | a11 * xy; |
| 75 | |
| 76 | return result >> 8; |
| 77 | } |
| 78 | |
| 79 | /***************************************************************************** |
| 80 | * |
| 81 | * D32 functions |
| 82 | * |
| 83 | */ |
| 84 | |
| 85 | // SRC == 8888 |
| 86 | |
reed@android.com | 152f748 | 2009-08-07 19:14:34 +0000 | [diff] [blame] | 87 | #define FILTER_PROC(x, y, a, b, c, d, dst) Filter_32_opaque(x, y, a, b, c, d, dst) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 88 | |
| 89 | #define MAKENAME(suffix) S32_opaque_D32 ## suffix |
| 90 | #define DSTSIZE 32 |
| 91 | #define SRCTYPE SkPMColor |
| 92 | #define CHECKSTATE(state) SkASSERT(state.fBitmap->config() == SkBitmap::kARGB_8888_Config); \ |
| 93 | SkASSERT(state.fAlphaScale == 256) |
| 94 | #define RETURNDST(src) src |
| 95 | #define SRC_TO_FILTER(src) src |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 96 | #include "SkBitmapProcState_sample.h" |
| 97 | |
reed@android.com | 152f748 | 2009-08-07 19:14:34 +0000 | [diff] [blame] | 98 | #undef FILTER_PROC |
| 99 | #define FILTER_PROC(x, y, a, b, c, d, dst) Filter_32_alpha(x, y, a, b, c, d, dst, alphaScale) |
| 100 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 101 | #define MAKENAME(suffix) S32_alpha_D32 ## suffix |
| 102 | #define DSTSIZE 32 |
| 103 | #define SRCTYPE SkPMColor |
| 104 | #define CHECKSTATE(state) SkASSERT(state.fBitmap->config() == SkBitmap::kARGB_8888_Config); \ |
| 105 | SkASSERT(state.fAlphaScale < 256) |
reed@android.com | 152f748 | 2009-08-07 19:14:34 +0000 | [diff] [blame] | 106 | #define PREAMBLE(state) unsigned alphaScale = state.fAlphaScale |
| 107 | #define RETURNDST(src) SkAlphaMulQ(src, alphaScale) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 108 | #define SRC_TO_FILTER(src) src |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 109 | #include "SkBitmapProcState_sample.h" |
| 110 | |
| 111 | // SRC == 565 |
| 112 | |
| 113 | #undef FILTER_PROC |
reed@android.com | 152f748 | 2009-08-07 19:14:34 +0000 | [diff] [blame] | 114 | #define FILTER_PROC(x, y, a, b, c, d, dst) \ |
| 115 | do { \ |
| 116 | uint32_t tmp = Filter_565_Expanded(x, y, a, b, c, d); \ |
| 117 | *(dst) = SkExpanded_565_To_PMColor(tmp); \ |
| 118 | } while (0) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 119 | |
| 120 | #define MAKENAME(suffix) S16_opaque_D32 ## suffix |
| 121 | #define DSTSIZE 32 |
| 122 | #define SRCTYPE uint16_t |
| 123 | #define CHECKSTATE(state) SkASSERT(state.fBitmap->config() == SkBitmap::kRGB_565_Config); \ |
| 124 | SkASSERT(state.fAlphaScale == 256) |
| 125 | #define RETURNDST(src) SkPixel16ToPixel32(src) |
| 126 | #define SRC_TO_FILTER(src) src |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 127 | #include "SkBitmapProcState_sample.h" |
| 128 | |
reed@android.com | 152f748 | 2009-08-07 19:14:34 +0000 | [diff] [blame] | 129 | #undef FILTER_PROC |
| 130 | #define FILTER_PROC(x, y, a, b, c, d, dst) \ |
| 131 | do { \ |
| 132 | uint32_t tmp = Filter_565_Expanded(x, y, a, b, c, d); \ |
| 133 | *(dst) = SkAlphaMulQ(SkExpanded_565_To_PMColor(tmp), alphaScale); \ |
| 134 | } while (0) |
| 135 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 136 | #define MAKENAME(suffix) S16_alpha_D32 ## suffix |
| 137 | #define DSTSIZE 32 |
| 138 | #define SRCTYPE uint16_t |
| 139 | #define CHECKSTATE(state) SkASSERT(state.fBitmap->config() == SkBitmap::kRGB_565_Config); \ |
| 140 | SkASSERT(state.fAlphaScale < 256) |
reed@android.com | 152f748 | 2009-08-07 19:14:34 +0000 | [diff] [blame] | 141 | #define PREAMBLE(state) unsigned alphaScale = state.fAlphaScale |
| 142 | #define RETURNDST(src) SkAlphaMulQ(SkPixel16ToPixel32(src), alphaScale) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 143 | #define SRC_TO_FILTER(src) src |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 144 | #include "SkBitmapProcState_sample.h" |
| 145 | |
| 146 | // SRC == Index8 |
| 147 | |
| 148 | #undef FILTER_PROC |
reed@android.com | 152f748 | 2009-08-07 19:14:34 +0000 | [diff] [blame] | 149 | #define FILTER_PROC(x, y, a, b, c, d, dst) Filter_32_opaque(x, y, a, b, c, d, dst) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 150 | |
| 151 | #define MAKENAME(suffix) SI8_opaque_D32 ## suffix |
| 152 | #define DSTSIZE 32 |
| 153 | #define SRCTYPE uint8_t |
| 154 | #define CHECKSTATE(state) SkASSERT(state.fBitmap->config() == SkBitmap::kIndex8_Config); \ |
| 155 | SkASSERT(state.fAlphaScale == 256) |
| 156 | #define PREAMBLE(state) const SkPMColor* SK_RESTRICT table = state.fBitmap->getColorTable()->lockColors() |
| 157 | #define RETURNDST(src) table[src] |
| 158 | #define SRC_TO_FILTER(src) table[src] |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 159 | #define POSTAMBLE(state) state.fBitmap->getColorTable()->unlockColors(false) |
| 160 | #include "SkBitmapProcState_sample.h" |
| 161 | |
reed@android.com | 152f748 | 2009-08-07 19:14:34 +0000 | [diff] [blame] | 162 | #undef FILTER_PROC |
| 163 | #define FILTER_PROC(x, y, a, b, c, d, dst) Filter_32_alpha(x, y, a, b, c, d, dst, alphaScale) |
| 164 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 165 | #define MAKENAME(suffix) SI8_alpha_D32 ## suffix |
| 166 | #define DSTSIZE 32 |
| 167 | #define SRCTYPE uint8_t |
| 168 | #define CHECKSTATE(state) SkASSERT(state.fBitmap->config() == SkBitmap::kIndex8_Config); \ |
| 169 | SkASSERT(state.fAlphaScale < 256) |
reed@android.com | 152f748 | 2009-08-07 19:14:34 +0000 | [diff] [blame] | 170 | #define PREAMBLE(state) unsigned alphaScale = state.fAlphaScale; \ |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 171 | const SkPMColor* SK_RESTRICT table = state.fBitmap->getColorTable()->lockColors() |
reed@android.com | 152f748 | 2009-08-07 19:14:34 +0000 | [diff] [blame] | 172 | #define RETURNDST(src) SkAlphaMulQ(table[src], alphaScale) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 173 | #define SRC_TO_FILTER(src) table[src] |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 174 | #define POSTAMBLE(state) state.fBitmap->getColorTable()->unlockColors(false) |
| 175 | #include "SkBitmapProcState_sample.h" |
| 176 | |
| 177 | // SRC == 4444 |
| 178 | |
| 179 | #undef FILTER_PROC |
reed@android.com | 152f748 | 2009-08-07 19:14:34 +0000 | [diff] [blame] | 180 | #define FILTER_PROC(x, y, a, b, c, d, dst) *(dst) = Filter_4444_D32(x, y, a, b, c, d) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 181 | |
| 182 | #define MAKENAME(suffix) S4444_opaque_D32 ## suffix |
| 183 | #define DSTSIZE 32 |
| 184 | #define SRCTYPE SkPMColor16 |
| 185 | #define CHECKSTATE(state) SkASSERT(state.fBitmap->config() == SkBitmap::kARGB_4444_Config); \ |
reed@android.com | 152f748 | 2009-08-07 19:14:34 +0000 | [diff] [blame] | 186 | SkASSERT(state.fAlphaScale == 256) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 187 | #define RETURNDST(src) SkPixel4444ToPixel32(src) |
| 188 | #define SRC_TO_FILTER(src) src |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 189 | #include "SkBitmapProcState_sample.h" |
| 190 | |
reed@android.com | 152f748 | 2009-08-07 19:14:34 +0000 | [diff] [blame] | 191 | #undef FILTER_PROC |
| 192 | #define FILTER_PROC(x, y, a, b, c, d, dst) \ |
| 193 | do { \ |
| 194 | uint32_t tmp = Filter_4444_D32(x, y, a, b, c, d); \ |
| 195 | *(dst) = SkAlphaMulQ(tmp, alphaScale); \ |
| 196 | } while (0) |
| 197 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 198 | #define MAKENAME(suffix) S4444_alpha_D32 ## suffix |
| 199 | #define DSTSIZE 32 |
| 200 | #define SRCTYPE SkPMColor16 |
| 201 | #define CHECKSTATE(state) SkASSERT(state.fBitmap->config() == SkBitmap::kARGB_4444_Config); \ |
reed@android.com | 152f748 | 2009-08-07 19:14:34 +0000 | [diff] [blame] | 202 | SkASSERT(state.fAlphaScale < 256) |
| 203 | #define PREAMBLE(state) unsigned alphaScale = state.fAlphaScale |
| 204 | #define RETURNDST(src) SkAlphaMulQ(SkPixel4444ToPixel32(src), alphaScale) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 205 | #define SRC_TO_FILTER(src) src |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 206 | #include "SkBitmapProcState_sample.h" |
| 207 | |
| 208 | // SRC == A8 |
| 209 | |
| 210 | #undef FILTER_PROC |
reed@android.com | 152f748 | 2009-08-07 19:14:34 +0000 | [diff] [blame] | 211 | #define FILTER_PROC(x, y, a, b, c, d, dst) \ |
| 212 | do { \ |
| 213 | unsigned tmp = Filter_8(x, y, a, b, c, d); \ |
| 214 | *(dst) = SkAlphaMulQ(pmColor, SkAlpha255To256(tmp)); \ |
| 215 | } while (0) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 216 | |
| 217 | #define MAKENAME(suffix) SA8_alpha_D32 ## suffix |
| 218 | #define DSTSIZE 32 |
| 219 | #define SRCTYPE uint8_t |
| 220 | #define CHECKSTATE(state) SkASSERT(state.fBitmap->config() == SkBitmap::kA8_Config); \ |
| 221 | SkASSERT(state.fAlphaScale == 256) |
| 222 | #define PREAMBLE(state) const SkPMColor pmColor = state.fPaintPMColor; |
| 223 | #define RETURNDST(src) SkAlphaMulQ(pmColor, SkAlpha255To256(src)) |
| 224 | #define SRC_TO_FILTER(src) src |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 225 | #include "SkBitmapProcState_sample.h" |
| 226 | |
| 227 | /***************************************************************************** |
| 228 | * |
| 229 | * D16 functions |
| 230 | * |
| 231 | */ |
| 232 | |
| 233 | // SRC == 8888 |
| 234 | |
| 235 | #undef FILTER_PROC |
reed@android.com | 152f748 | 2009-08-07 19:14:34 +0000 | [diff] [blame] | 236 | #define FILTER_PROC(x, y, a, b, c, d, dst) \ |
| 237 | do { \ |
| 238 | SkPMColor dstColor; \ |
| 239 | Filter_32_opaque(x, y, a, b, c, d, &dstColor); \ |
| 240 | (*dst) = SkPixel32ToPixel16(dstColor); \ |
| 241 | } while (0) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 242 | |
| 243 | #define MAKENAME(suffix) S32_D16 ## suffix |
| 244 | #define DSTSIZE 16 |
| 245 | #define SRCTYPE SkPMColor |
| 246 | #define CHECKSTATE(state) SkASSERT(state.fBitmap->config() == SkBitmap::kARGB_8888_Config); \ |
| 247 | SkASSERT(state.fBitmap->isOpaque()) |
| 248 | #define RETURNDST(src) SkPixel32ToPixel16(src) |
| 249 | #define SRC_TO_FILTER(src) src |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 250 | #include "SkBitmapProcState_sample.h" |
| 251 | |
| 252 | // SRC == 565 |
| 253 | |
| 254 | #undef FILTER_PROC |
reed@android.com | 152f748 | 2009-08-07 19:14:34 +0000 | [diff] [blame] | 255 | #define FILTER_PROC(x, y, a, b, c, d, dst) \ |
| 256 | do { \ |
| 257 | uint32_t tmp = Filter_565_Expanded(x, y, a, b, c, d); \ |
| 258 | *(dst) = SkCompact_rgb_16((tmp) >> 5); \ |
| 259 | } while (0) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 260 | |
| 261 | #define MAKENAME(suffix) S16_D16 ## suffix |
| 262 | #define DSTSIZE 16 |
| 263 | #define SRCTYPE uint16_t |
| 264 | #define CHECKSTATE(state) SkASSERT(state.fBitmap->config() == SkBitmap::kRGB_565_Config) |
| 265 | #define RETURNDST(src) src |
| 266 | #define SRC_TO_FILTER(src) src |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 267 | #include "SkBitmapProcState_sample.h" |
| 268 | |
| 269 | // SRC == Index8 |
| 270 | |
| 271 | #undef FILTER_PROC |
reed@android.com | 152f748 | 2009-08-07 19:14:34 +0000 | [diff] [blame] | 272 | #define FILTER_PROC(x, y, a, b, c, d, dst) \ |
| 273 | do { \ |
| 274 | uint32_t tmp = Filter_565_Expanded(x, y, a, b, c, d); \ |
| 275 | *(dst) = SkCompact_rgb_16((tmp) >> 5); \ |
| 276 | } while (0) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 277 | |
| 278 | #define MAKENAME(suffix) SI8_D16 ## suffix |
| 279 | #define DSTSIZE 16 |
| 280 | #define SRCTYPE uint8_t |
| 281 | #define CHECKSTATE(state) SkASSERT(state.fBitmap->config() == SkBitmap::kIndex8_Config); \ |
| 282 | SkASSERT(state.fBitmap->isOpaque()) |
| 283 | #define PREAMBLE(state) const uint16_t* SK_RESTRICT table = state.fBitmap->getColorTable()->lock16BitCache() |
| 284 | #define RETURNDST(src) table[src] |
| 285 | #define SRC_TO_FILTER(src) table[src] |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 286 | #define POSTAMBLE(state) state.fBitmap->getColorTable()->unlock16BitCache() |
| 287 | #include "SkBitmapProcState_sample.h" |
| 288 | |
reed@android.com | a44b4cc | 2009-07-16 02:03:58 +0000 | [diff] [blame] | 289 | /////////////////////////////////////////////////////////////////////////////// |
| 290 | |
| 291 | #undef FILTER_PROC |
reed@android.com | 152f748 | 2009-08-07 19:14:34 +0000 | [diff] [blame] | 292 | #define FILTER_PROC(x, y, a, b, c, d, dst) \ |
| 293 | do { \ |
| 294 | uint32_t tmp = Filter_565_Expanded(x, y, a, b, c, d); \ |
| 295 | *(dst) = SkCompact_rgb_16((tmp) >> 5); \ |
| 296 | } while (0) |
| 297 | |
reed@android.com | a44b4cc | 2009-07-16 02:03:58 +0000 | [diff] [blame] | 298 | |
reed@android.com | b577b41 | 2009-10-27 17:49:32 +0000 | [diff] [blame] | 299 | // clamp |
| 300 | |
reed@android.com | a44b4cc | 2009-07-16 02:03:58 +0000 | [diff] [blame] | 301 | #define TILEX_PROCF(fx, max) SkClampMax((fx) >> 16, max) |
| 302 | #define TILEY_PROCF(fy, max) SkClampMax((fy) >> 16, max) |
| 303 | #define TILEX_LOW_BITS(fx, max) (((fx) >> 12) & 0xF) |
| 304 | #define TILEY_LOW_BITS(fy, max) (((fy) >> 12) & 0xF) |
| 305 | |
| 306 | #define MAKENAME(suffix) Clamp_S16_D16 ## suffix |
| 307 | #define SRCTYPE uint16_t |
| 308 | #define DSTTYPE uint16_t |
| 309 | #define CHECKSTATE(state) SkASSERT(state.fBitmap->config() == SkBitmap::kRGB_565_Config) |
| 310 | #define SRC_TO_FILTER(src) src |
reed@android.com | a44b4cc | 2009-07-16 02:03:58 +0000 | [diff] [blame] | 311 | #include "SkBitmapProcState_shaderproc.h" |
| 312 | |
reed@android.com | aa9152a | 2009-07-17 21:24:56 +0000 | [diff] [blame] | 313 | |
| 314 | #define TILEX_PROCF(fx, max) (((fx) & 0xFFFF) * ((max) + 1) >> 16) |
| 315 | #define TILEY_PROCF(fy, max) (((fy) & 0xFFFF) * ((max) + 1) >> 16) |
| 316 | #define TILEX_LOW_BITS(fx, max) ((((fx) & 0xFFFF) * ((max) + 1) >> 12) & 0xF) |
| 317 | #define TILEY_LOW_BITS(fy, max) ((((fy) & 0xFFFF) * ((max) + 1) >> 12) & 0xF) |
| 318 | |
| 319 | #define MAKENAME(suffix) Repeat_S16_D16 ## suffix |
| 320 | #define SRCTYPE uint16_t |
| 321 | #define DSTTYPE uint16_t |
| 322 | #define CHECKSTATE(state) SkASSERT(state.fBitmap->config() == SkBitmap::kRGB_565_Config) |
| 323 | #define SRC_TO_FILTER(src) src |
reed@android.com | aa9152a | 2009-07-17 21:24:56 +0000 | [diff] [blame] | 324 | #include "SkBitmapProcState_shaderproc.h" |
| 325 | |
reed@android.com | b577b41 | 2009-10-27 17:49:32 +0000 | [diff] [blame] | 326 | |
| 327 | #define TILEX_PROCF(fx, max) SkClampMax((fx) >> 16, max) |
| 328 | #define TILEY_PROCF(fy, max) SkClampMax((fy) >> 16, max) |
| 329 | #define TILEX_LOW_BITS(fx, max) (((fx) >> 12) & 0xF) |
| 330 | #define TILEY_LOW_BITS(fy, max) (((fy) >> 12) & 0xF) |
| 331 | |
| 332 | #undef FILTER_PROC |
| 333 | #define FILTER_PROC(x, y, a, b, c, d, dst) Filter_32_opaque(x, y, a, b, c, d, dst) |
| 334 | #define MAKENAME(suffix) Clamp_SI8_opaque_D32 ## suffix |
| 335 | #define SRCTYPE uint8_t |
| 336 | #define DSTTYPE uint32_t |
| 337 | #define CHECKSTATE(state) SkASSERT(state.fBitmap->config() == SkBitmap::kIndex8_Config) |
| 338 | #define PREAMBLE(state) const SkPMColor* SK_RESTRICT table = state.fBitmap->getColorTable()->lockColors() |
| 339 | #define SRC_TO_FILTER(src) table[src] |
| 340 | #define POSTAMBLE(state) state.fBitmap->getColorTable()->unlockColors(false) |
| 341 | #include "SkBitmapProcState_shaderproc.h" |
| 342 | |
reed@android.com | a44b4cc | 2009-07-16 02:03:58 +0000 | [diff] [blame] | 343 | /////////////////////////////////////////////////////////////////////////////// |
| 344 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 345 | static bool valid_for_filtering(unsigned dimension) { |
| 346 | // for filtering, width and height must fit in 14bits, since we use steal |
| 347 | // 2 bits from each to store our 4bit subpixel data |
| 348 | return (dimension & ~0x3FFF) == 0; |
| 349 | } |
| 350 | |
| 351 | bool SkBitmapProcState::chooseProcs(const SkMatrix& inv, const SkPaint& paint) { |
| 352 | if (fOrigBitmap.width() == 0 || fOrigBitmap.height() == 0) { |
| 353 | return false; |
| 354 | } |
reed@android.com | a44b4cc | 2009-07-16 02:03:58 +0000 | [diff] [blame] | 355 | |
reed@android.com | 07d1f00 | 2009-08-13 19:35:48 +0000 | [diff] [blame] | 356 | const SkMatrix* m; |
| 357 | bool trivial_matrix = (inv.getType() & ~SkMatrix::kTranslate_Mask) == 0; |
| 358 | bool clamp_clamp = SkShader::kClamp_TileMode == fTileModeX && |
| 359 | SkShader::kClamp_TileMode == fTileModeY; |
| 360 | |
| 361 | if (clamp_clamp || trivial_matrix) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 362 | m = &inv; |
| 363 | } else { |
| 364 | fUnitInvMatrix = inv; |
| 365 | fUnitInvMatrix.postIDiv(fOrigBitmap.width(), fOrigBitmap.height()); |
| 366 | m = &fUnitInvMatrix; |
| 367 | } |
reed@android.com | 07d1f00 | 2009-08-13 19:35:48 +0000 | [diff] [blame] | 368 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 369 | fBitmap = &fOrigBitmap; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 370 | if (fOrigBitmap.hasMipMap()) { |
| 371 | int shift = fOrigBitmap.extractMipLevel(&fMipBitmap, |
| 372 | SkScalarToFixed(m->getScaleX()), |
| 373 | SkScalarToFixed(m->getSkewY())); |
| 374 | |
| 375 | if (shift > 0) { |
| 376 | if (m != &fUnitInvMatrix) { |
| 377 | fUnitInvMatrix = *m; |
| 378 | m = &fUnitInvMatrix; |
| 379 | } |
| 380 | |
| 381 | SkScalar scale = SkFixedToScalar(SK_Fixed1 >> shift); |
| 382 | fUnitInvMatrix.postScale(scale, scale); |
| 383 | |
| 384 | // now point here instead of fOrigBitmap |
| 385 | fBitmap = &fMipBitmap; |
| 386 | } |
| 387 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 388 | |
| 389 | fInvMatrix = m; |
| 390 | fInvProc = m->getMapXYProc(); |
| 391 | fInvType = m->getType(); |
| 392 | fInvSx = SkScalarToFixed(m->getScaleX()); |
reed@google.com | 4bc0a9d | 2012-03-07 21:47:41 +0000 | [diff] [blame] | 393 | fInvSxFractionalInt = SkScalarToFractionalInt(m->getScaleX()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 394 | fInvKy = SkScalarToFixed(m->getSkewY()); |
reed@google.com | 411215a | 2012-03-08 20:13:46 +0000 | [diff] [blame^] | 395 | fInvKyFractionalInt = SkScalarToFractionalInt(m->getSkewY()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 396 | |
| 397 | fAlphaScale = SkAlpha255To256(paint.getAlpha()); |
| 398 | |
| 399 | // pick-up filtering from the paint, but only if the matrix is |
| 400 | // more complex than identity/translate (i.e. no need to pay the cost |
| 401 | // of filtering if we're not scaled etc.). |
| 402 | // note: we explicitly check inv, since m might be scaled due to unitinv |
| 403 | // trickery, but we don't want to see that for this test |
| 404 | fDoFilter = paint.isFilterBitmap() && |
| 405 | (inv.getType() > SkMatrix::kTranslate_Mask && |
| 406 | valid_for_filtering(fBitmap->width() | fBitmap->height())); |
| 407 | |
reed@android.com | 7a99eb1 | 2009-07-16 01:13:14 +0000 | [diff] [blame] | 408 | fShaderProc32 = NULL; |
| 409 | fShaderProc16 = NULL; |
| 410 | fSampleProc32 = NULL; |
| 411 | fSampleProc16 = NULL; |
reed@android.com | 48534f9 | 2009-07-16 20:53:26 +0000 | [diff] [blame] | 412 | |
reed@android.com | 07d1f00 | 2009-08-13 19:35:48 +0000 | [diff] [blame] | 413 | fMatrixProc = this->chooseMatrixProc(trivial_matrix); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 414 | if (NULL == fMatrixProc) { |
| 415 | return false; |
| 416 | } |
| 417 | |
| 418 | /////////////////////////////////////////////////////////////////////// |
| 419 | |
| 420 | int index = 0; |
| 421 | if (fAlphaScale < 256) { // note: this distinction is not used for D16 |
| 422 | index |= 1; |
| 423 | } |
| 424 | if (fInvType <= (SkMatrix::kTranslate_Mask | SkMatrix::kScale_Mask)) { |
| 425 | index |= 2; |
| 426 | } |
| 427 | if (fDoFilter) { |
| 428 | index |= 4; |
| 429 | } |
| 430 | // bits 3,4,5 encoding the source bitmap format |
| 431 | switch (fBitmap->config()) { |
| 432 | case SkBitmap::kARGB_8888_Config: |
| 433 | index |= 0; |
| 434 | break; |
| 435 | case SkBitmap::kRGB_565_Config: |
| 436 | index |= 8; |
| 437 | break; |
| 438 | case SkBitmap::kIndex8_Config: |
| 439 | index |= 16; |
| 440 | break; |
| 441 | case SkBitmap::kARGB_4444_Config: |
| 442 | index |= 24; |
| 443 | break; |
| 444 | case SkBitmap::kA8_Config: |
| 445 | index |= 32; |
| 446 | fPaintPMColor = SkPreMultiplyColor(paint.getColor()); |
reed@android.com | 3469c76 | 2009-02-24 19:03:20 +0000 | [diff] [blame] | 447 | break; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 448 | default: |
| 449 | return false; |
| 450 | } |
| 451 | |
| 452 | static const SampleProc32 gSample32[] = { |
| 453 | S32_opaque_D32_nofilter_DXDY, |
| 454 | S32_alpha_D32_nofilter_DXDY, |
| 455 | S32_opaque_D32_nofilter_DX, |
| 456 | S32_alpha_D32_nofilter_DX, |
| 457 | S32_opaque_D32_filter_DXDY, |
| 458 | S32_alpha_D32_filter_DXDY, |
| 459 | S32_opaque_D32_filter_DX, |
| 460 | S32_alpha_D32_filter_DX, |
| 461 | |
| 462 | S16_opaque_D32_nofilter_DXDY, |
| 463 | S16_alpha_D32_nofilter_DXDY, |
| 464 | S16_opaque_D32_nofilter_DX, |
| 465 | S16_alpha_D32_nofilter_DX, |
| 466 | S16_opaque_D32_filter_DXDY, |
| 467 | S16_alpha_D32_filter_DXDY, |
| 468 | S16_opaque_D32_filter_DX, |
| 469 | S16_alpha_D32_filter_DX, |
| 470 | |
| 471 | SI8_opaque_D32_nofilter_DXDY, |
| 472 | SI8_alpha_D32_nofilter_DXDY, |
| 473 | SI8_opaque_D32_nofilter_DX, |
| 474 | SI8_alpha_D32_nofilter_DX, |
| 475 | SI8_opaque_D32_filter_DXDY, |
| 476 | SI8_alpha_D32_filter_DXDY, |
| 477 | SI8_opaque_D32_filter_DX, |
| 478 | SI8_alpha_D32_filter_DX, |
| 479 | |
| 480 | S4444_opaque_D32_nofilter_DXDY, |
| 481 | S4444_alpha_D32_nofilter_DXDY, |
| 482 | S4444_opaque_D32_nofilter_DX, |
| 483 | S4444_alpha_D32_nofilter_DX, |
| 484 | S4444_opaque_D32_filter_DXDY, |
| 485 | S4444_alpha_D32_filter_DXDY, |
| 486 | S4444_opaque_D32_filter_DX, |
| 487 | S4444_alpha_D32_filter_DX, |
| 488 | |
| 489 | // A8 treats alpha/opauqe the same (equally efficient) |
| 490 | SA8_alpha_D32_nofilter_DXDY, |
| 491 | SA8_alpha_D32_nofilter_DXDY, |
| 492 | SA8_alpha_D32_nofilter_DX, |
| 493 | SA8_alpha_D32_nofilter_DX, |
| 494 | SA8_alpha_D32_filter_DXDY, |
| 495 | SA8_alpha_D32_filter_DXDY, |
| 496 | SA8_alpha_D32_filter_DX, |
| 497 | SA8_alpha_D32_filter_DX |
| 498 | }; |
| 499 | |
| 500 | static const SampleProc16 gSample16[] = { |
| 501 | S32_D16_nofilter_DXDY, |
| 502 | S32_D16_nofilter_DX, |
| 503 | S32_D16_filter_DXDY, |
| 504 | S32_D16_filter_DX, |
| 505 | |
| 506 | S16_D16_nofilter_DXDY, |
| 507 | S16_D16_nofilter_DX, |
| 508 | S16_D16_filter_DXDY, |
| 509 | S16_D16_filter_DX, |
| 510 | |
| 511 | SI8_D16_nofilter_DXDY, |
| 512 | SI8_D16_nofilter_DX, |
| 513 | SI8_D16_filter_DXDY, |
| 514 | SI8_D16_filter_DX, |
| 515 | |
| 516 | // Don't support 4444 -> 565 |
| 517 | NULL, NULL, NULL, NULL, |
| 518 | // Don't support A8 -> 565 |
| 519 | NULL, NULL, NULL, NULL |
| 520 | }; |
reed@android.com | 48534f9 | 2009-07-16 20:53:26 +0000 | [diff] [blame] | 521 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 522 | fSampleProc32 = gSample32[index]; |
| 523 | index >>= 1; // shift away any opaque/alpha distinction |
| 524 | fSampleProc16 = gSample16[index]; |
| 525 | |
reed@android.com | a44b4cc | 2009-07-16 02:03:58 +0000 | [diff] [blame] | 526 | // our special-case shaderprocs |
reed@android.com | aa9152a | 2009-07-17 21:24:56 +0000 | [diff] [blame] | 527 | if (S16_D16_filter_DX == fSampleProc16) { |
| 528 | if (clamp_clamp) { |
| 529 | fShaderProc16 = Clamp_S16_D16_filter_DX_shaderproc; |
| 530 | } else if (SkShader::kRepeat_TileMode == fTileModeX && |
| 531 | SkShader::kRepeat_TileMode == fTileModeY) { |
| 532 | fShaderProc16 = Repeat_S16_D16_filter_DX_shaderproc; |
| 533 | } |
reed@android.com | b577b41 | 2009-10-27 17:49:32 +0000 | [diff] [blame] | 534 | } else if (SI8_opaque_D32_filter_DX == fSampleProc32 && clamp_clamp) { |
| 535 | fShaderProc32 = Clamp_SI8_opaque_D32_filter_DX_shaderproc; |
reed@android.com | a44b4cc | 2009-07-16 02:03:58 +0000 | [diff] [blame] | 536 | } |
reed@android.com | c9a1d4b | 2009-08-03 15:05:55 +0000 | [diff] [blame] | 537 | |
| 538 | // see if our platform has any accelerated overrides |
| 539 | this->platformProcs(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 540 | return true; |
| 541 | } |
| 542 | |
reed@android.com | 4c128c4 | 2009-08-14 13:54:37 +0000 | [diff] [blame] | 543 | /////////////////////////////////////////////////////////////////////////////// |
| 544 | /* |
| 545 | The storage requirements for the different matrix procs are as follows, |
| 546 | where each X or Y is 2 bytes, and N is the number of pixels/elements: |
| 547 | |
| 548 | scale/translate nofilter Y(4bytes) + N * X |
| 549 | affine/perspective nofilter N * (X Y) |
| 550 | scale/translate filter Y Y + N * (X X) |
| 551 | affine/perspective filter N * (Y Y X X) |
| 552 | */ |
| 553 | int SkBitmapProcState::maxCountForBufferSize(size_t bufferSize) const { |
| 554 | int32_t size = static_cast<int32_t>(bufferSize); |
reed@android.com | 4c128c4 | 2009-08-14 13:54:37 +0000 | [diff] [blame] | 555 | |
| 556 | size &= ~3; // only care about 4-byte aligned chunks |
| 557 | if (fInvType <= (SkMatrix::kTranslate_Mask | SkMatrix::kScale_Mask)) { |
| 558 | size -= 4; // the shared Y (or YY) coordinate |
| 559 | if (size < 0) { |
| 560 | size = 0; |
| 561 | } |
reed@android.com | 258cb22 | 2010-04-14 13:36:33 +0000 | [diff] [blame] | 562 | size >>= 1; |
reed@android.com | 4c128c4 | 2009-08-14 13:54:37 +0000 | [diff] [blame] | 563 | } else { |
reed@android.com | 258cb22 | 2010-04-14 13:36:33 +0000 | [diff] [blame] | 564 | size >>= 2; |
reed@android.com | 4c128c4 | 2009-08-14 13:54:37 +0000 | [diff] [blame] | 565 | } |
| 566 | |
reed@android.com | 258cb22 | 2010-04-14 13:36:33 +0000 | [diff] [blame] | 567 | if (fDoFilter) { |
| 568 | size >>= 1; |
| 569 | } |
| 570 | |
| 571 | return size; |
reed@android.com | 4c128c4 | 2009-08-14 13:54:37 +0000 | [diff] [blame] | 572 | } |
| 573 | |