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