epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 1 | |
| 2 | /* |
| 3 | * Copyright 2006 The Android Open Source Project |
| 4 | * |
| 5 | * Use of this source code is governed by a BSD-style license that can be |
| 6 | * found in the LICENSE file. |
| 7 | */ |
| 8 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 9 | |
| 10 | #include "SkBlitter.h" |
| 11 | #include "SkAntiRun.h" |
| 12 | #include "SkColor.h" |
| 13 | #include "SkColorFilter.h" |
| 14 | #include "SkMask.h" |
| 15 | #include "SkMaskFilter.h" |
| 16 | #include "SkTemplatesPriv.h" |
| 17 | #include "SkUtils.h" |
| 18 | #include "SkXfermode.h" |
| 19 | |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 20 | SkBlitter::~SkBlitter() {} |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 21 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 22 | const SkBitmap* SkBlitter::justAnOpaqueColor(uint32_t* value) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 23 | return NULL; |
| 24 | } |
| 25 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 26 | void SkBlitter::blitH(int x, int y, int width) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 27 | SkASSERT(!"unimplemented"); |
| 28 | } |
| 29 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 30 | void SkBlitter::blitAntiH(int x, int y, const SkAlpha antialias[], |
| 31 | const int16_t runs[]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 32 | SkASSERT(!"unimplemented"); |
| 33 | } |
| 34 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 35 | void SkBlitter::blitV(int x, int y, int height, SkAlpha alpha) { |
| 36 | if (alpha == 255) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 37 | this->blitRect(x, y, 1, height); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 38 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 39 | int16_t runs[2]; |
| 40 | runs[0] = 1; |
| 41 | runs[1] = 0; |
| 42 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 43 | while (--height >= 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 44 | this->blitAntiH(x, y++, &alpha, runs); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 45 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 46 | } |
| 47 | } |
| 48 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 49 | void SkBlitter::blitRect(int x, int y, int width, int height) { |
| 50 | while (--height >= 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 51 | this->blitH(x, y++, width); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 52 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 53 | } |
| 54 | |
| 55 | ////////////////////////////////////////////////////////////////////////////// |
| 56 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 57 | static inline void bits_to_runs(SkBlitter* blitter, int x, int y, |
| 58 | const uint8_t bits[], |
| 59 | U8CPU left_mask, int rowBytes, |
| 60 | U8CPU right_mask) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 61 | int inFill = 0; |
| 62 | int pos = 0; |
| 63 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 64 | while (--rowBytes >= 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 65 | unsigned b = *bits++ & left_mask; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 66 | if (rowBytes == 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 67 | b &= right_mask; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 68 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 69 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 70 | for (unsigned test = 0x80; test != 0; test >>= 1) { |
| 71 | if (b & test) { |
| 72 | if (!inFill) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 73 | pos = x; |
| 74 | inFill = true; |
| 75 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 76 | } else { |
| 77 | if (inFill) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 78 | blitter->blitH(pos, y, x - pos); |
| 79 | inFill = false; |
| 80 | } |
| 81 | } |
| 82 | x += 1; |
| 83 | } |
| 84 | left_mask = 0xFF; |
| 85 | } |
| 86 | |
| 87 | // final cleanup |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 88 | if (inFill) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 89 | blitter->blitH(pos, y, x - pos); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 90 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 91 | } |
| 92 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 93 | void SkBlitter::blitMask(const SkMask& mask, const SkIRect& clip) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 94 | SkASSERT(mask.fBounds.contains(clip)); |
| 95 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 96 | if (mask.fFormat == SkMask::kBW_Format) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 97 | int cx = clip.fLeft; |
| 98 | int cy = clip.fTop; |
| 99 | int maskLeft = mask.fBounds.fLeft; |
| 100 | int mask_rowBytes = mask.fRowBytes; |
| 101 | int height = clip.height(); |
| 102 | |
| 103 | const uint8_t* bits = mask.getAddr1(cx, cy); |
| 104 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 105 | if (cx == maskLeft && clip.fRight == mask.fBounds.fRight) { |
| 106 | while (--height >= 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 107 | bits_to_runs(this, cx, cy, bits, 0xFF, mask_rowBytes, 0xFF); |
| 108 | bits += mask_rowBytes; |
| 109 | cy += 1; |
| 110 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 111 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 112 | int left_edge = cx - maskLeft; |
| 113 | SkASSERT(left_edge >= 0); |
| 114 | int rite_edge = clip.fRight - maskLeft; |
| 115 | SkASSERT(rite_edge > left_edge); |
| 116 | |
| 117 | int left_mask = 0xFF >> (left_edge & 7); |
| 118 | int rite_mask = 0xFF << (8 - (rite_edge & 7)); |
| 119 | int full_runs = (rite_edge >> 3) - ((left_edge + 7) >> 3); |
| 120 | |
| 121 | // check for empty right mask, so we don't read off the end (or go slower than we need to) |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 122 | if (rite_mask == 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 123 | SkASSERT(full_runs >= 0); |
| 124 | full_runs -= 1; |
| 125 | rite_mask = 0xFF; |
| 126 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 127 | if (left_mask == 0xFF) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 128 | full_runs -= 1; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 129 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 130 | |
| 131 | // back up manually so we can keep in sync with our byte-aligned src |
| 132 | // have cx reflect our actual starting x-coord |
| 133 | cx -= left_edge & 7; |
| 134 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 135 | if (full_runs < 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 136 | SkASSERT((left_mask & rite_mask) != 0); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 137 | while (--height >= 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 138 | bits_to_runs(this, cx, cy, bits, left_mask, 1, rite_mask); |
| 139 | bits += mask_rowBytes; |
| 140 | cy += 1; |
| 141 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 142 | } else { |
| 143 | while (--height >= 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 144 | bits_to_runs(this, cx, cy, bits, left_mask, full_runs + 2, rite_mask); |
| 145 | bits += mask_rowBytes; |
| 146 | cy += 1; |
| 147 | } |
| 148 | } |
| 149 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 150 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 151 | int width = clip.width(); |
| 152 | SkAutoSTMalloc<64, int16_t> runStorage(width + 1); |
| 153 | int16_t* runs = runStorage.get(); |
reed@google.com | 7989186 | 2011-10-18 15:44:57 +0000 | [diff] [blame^] | 154 | const uint8_t* aa = mask.getAddr8(clip.fLeft, clip.fTop); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 155 | |
| 156 | sk_memset16((uint16_t*)runs, 1, width); |
| 157 | runs[width] = 0; |
| 158 | |
| 159 | int height = clip.height(); |
| 160 | int y = clip.fTop; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 161 | while (--height >= 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 162 | this->blitAntiH(clip.fLeft, y, aa, runs); |
| 163 | aa += mask.fRowBytes; |
| 164 | y += 1; |
| 165 | } |
| 166 | } |
| 167 | } |
| 168 | |
| 169 | /////////////////////// these guys are not virtual, just a helpers |
| 170 | |
| 171 | void SkBlitter::blitMaskRegion(const SkMask& mask, const SkRegion& clip) { |
| 172 | if (clip.quickReject(mask.fBounds)) { |
| 173 | return; |
| 174 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 175 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 176 | SkRegion::Cliperator clipper(clip, mask.fBounds); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 177 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 178 | while (!clipper.done()) { |
| 179 | const SkIRect& cr = clipper.rect(); |
| 180 | this->blitMask(mask, cr); |
| 181 | clipper.next(); |
| 182 | } |
| 183 | } |
| 184 | |
| 185 | void SkBlitter::blitRectRegion(const SkIRect& rect, const SkRegion& clip) { |
| 186 | SkRegion::Cliperator clipper(clip, rect); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 187 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 188 | while (!clipper.done()) { |
| 189 | const SkIRect& cr = clipper.rect(); |
| 190 | this->blitRect(cr.fLeft, cr.fTop, cr.width(), cr.height()); |
| 191 | clipper.next(); |
| 192 | } |
| 193 | } |
| 194 | |
| 195 | void SkBlitter::blitRegion(const SkRegion& clip) { |
| 196 | SkRegion::Iterator iter(clip); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 197 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 198 | while (!iter.done()) { |
| 199 | const SkIRect& cr = iter.rect(); |
| 200 | this->blitRect(cr.fLeft, cr.fTop, cr.width(), cr.height()); |
| 201 | iter.next(); |
| 202 | } |
| 203 | } |
| 204 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 205 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 206 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 207 | void SkNullBlitter::blitH(int x, int y, int width) {} |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 208 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 209 | void SkNullBlitter::blitAntiH(int x, int y, const SkAlpha antialias[], |
| 210 | const int16_t runs[]) {} |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 211 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 212 | void SkNullBlitter::blitV(int x, int y, int height, SkAlpha alpha) {} |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 213 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 214 | void SkNullBlitter::blitRect(int x, int y, int width, int height) {} |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 215 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 216 | void SkNullBlitter::blitMask(const SkMask& mask, const SkIRect& clip) {} |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 217 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 218 | const SkBitmap* SkNullBlitter::justAnOpaqueColor(uint32_t* value) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 219 | return NULL; |
| 220 | } |
| 221 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 222 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 223 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 224 | static int compute_anti_width(const int16_t runs[]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 225 | int width = 0; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 226 | |
| 227 | for (;;) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 228 | int count = runs[0]; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 229 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 230 | SkASSERT(count >= 0); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 231 | if (count == 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 232 | break; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 233 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 234 | width += count; |
| 235 | runs += count; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 236 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 237 | SkASSERT(width < 20000); |
| 238 | } |
| 239 | return width; |
| 240 | } |
| 241 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 242 | static inline bool y_in_rect(int y, const SkIRect& rect) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 243 | return (unsigned)(y - rect.fTop) < (unsigned)rect.height(); |
| 244 | } |
| 245 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 246 | static inline bool x_in_rect(int x, const SkIRect& rect) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 247 | return (unsigned)(x - rect.fLeft) < (unsigned)rect.width(); |
| 248 | } |
| 249 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 250 | void SkRectClipBlitter::blitH(int left, int y, int width) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 251 | SkASSERT(width > 0); |
| 252 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 253 | if (!y_in_rect(y, fClipRect)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 254 | return; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 255 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 256 | |
| 257 | int right = left + width; |
| 258 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 259 | if (left < fClipRect.fLeft) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 260 | left = fClipRect.fLeft; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 261 | } |
| 262 | if (right > fClipRect.fRight) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 263 | right = fClipRect.fRight; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 264 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 265 | |
| 266 | width = right - left; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 267 | if (width > 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 268 | fBlitter->blitH(left, y, width); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 269 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 270 | } |
| 271 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 272 | void SkRectClipBlitter::blitAntiH(int left, int y, const SkAlpha aa[], |
| 273 | const int16_t runs[]) { |
| 274 | if (!y_in_rect(y, fClipRect) || left >= fClipRect.fRight) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 275 | return; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 276 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 277 | |
| 278 | int x0 = left; |
| 279 | int x1 = left + compute_anti_width(runs); |
| 280 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 281 | if (x1 <= fClipRect.fLeft) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 282 | return; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 283 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 284 | |
| 285 | SkASSERT(x0 < x1); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 286 | if (x0 < fClipRect.fLeft) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 287 | int dx = fClipRect.fLeft - x0; |
| 288 | SkAlphaRuns::BreakAt((int16_t*)runs, (uint8_t*)aa, dx); |
| 289 | runs += dx; |
| 290 | aa += dx; |
| 291 | x0 = fClipRect.fLeft; |
| 292 | } |
| 293 | |
| 294 | SkASSERT(x0 < x1 && runs[x1 - x0] == 0); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 295 | if (x1 > fClipRect.fRight) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 296 | x1 = fClipRect.fRight; |
| 297 | SkAlphaRuns::BreakAt((int16_t*)runs, (uint8_t*)aa, x1 - x0); |
| 298 | ((int16_t*)runs)[x1 - x0] = 0; |
| 299 | } |
| 300 | |
| 301 | SkASSERT(x0 < x1 && runs[x1 - x0] == 0); |
| 302 | SkASSERT(compute_anti_width(runs) == x1 - x0); |
| 303 | |
| 304 | fBlitter->blitAntiH(x0, y, aa, runs); |
| 305 | } |
| 306 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 307 | void SkRectClipBlitter::blitV(int x, int y, int height, SkAlpha alpha) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 308 | SkASSERT(height > 0); |
| 309 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 310 | if (!x_in_rect(x, fClipRect)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 311 | return; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 312 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 313 | |
| 314 | int y0 = y; |
| 315 | int y1 = y + height; |
| 316 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 317 | if (y0 < fClipRect.fTop) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 318 | y0 = fClipRect.fTop; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 319 | } |
| 320 | if (y1 > fClipRect.fBottom) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 321 | y1 = fClipRect.fBottom; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 322 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 323 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 324 | if (y0 < y1) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 325 | fBlitter->blitV(x, y0, y1 - y0, alpha); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 326 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 327 | } |
| 328 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 329 | void SkRectClipBlitter::blitRect(int left, int y, int width, int height) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 330 | SkIRect r; |
| 331 | |
| 332 | r.set(left, y, left + width, y + height); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 333 | if (r.intersect(fClipRect)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 334 | fBlitter->blitRect(r.fLeft, r.fTop, r.width(), r.height()); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 335 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 336 | } |
| 337 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 338 | void SkRectClipBlitter::blitMask(const SkMask& mask, const SkIRect& clip) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 339 | SkASSERT(mask.fBounds.contains(clip)); |
| 340 | |
| 341 | SkIRect r = clip; |
| 342 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 343 | if (r.intersect(fClipRect)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 344 | fBlitter->blitMask(mask, r); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 345 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 346 | } |
| 347 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 348 | const SkBitmap* SkRectClipBlitter::justAnOpaqueColor(uint32_t* value) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 349 | return fBlitter->justAnOpaqueColor(value); |
| 350 | } |
| 351 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 352 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 353 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 354 | void SkRgnClipBlitter::blitH(int x, int y, int width) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 355 | SkRegion::Spanerator span(*fRgn, y, x, x + width); |
| 356 | int left, right; |
| 357 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 358 | while (span.next(&left, &right)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 359 | SkASSERT(left < right); |
| 360 | fBlitter->blitH(left, y, right - left); |
| 361 | } |
| 362 | } |
| 363 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 364 | void SkRgnClipBlitter::blitAntiH(int x, int y, const SkAlpha aa[], |
| 365 | const int16_t runs[]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 366 | int width = compute_anti_width(runs); |
| 367 | SkRegion::Spanerator span(*fRgn, y, x, x + width); |
| 368 | int left, right; |
| 369 | SkDEBUGCODE(const SkIRect& bounds = fRgn->getBounds();) |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 370 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 371 | int prevRite = x; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 372 | while (span.next(&left, &right)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 373 | SkASSERT(x <= left); |
| 374 | SkASSERT(left < right); |
| 375 | SkASSERT(left >= bounds.fLeft && right <= bounds.fRight); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 376 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 377 | SkAlphaRuns::Break((int16_t*)runs, (uint8_t*)aa, left - x, right - left); |
| 378 | |
| 379 | // now zero before left |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 380 | if (left > prevRite) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 381 | int index = prevRite - x; |
| 382 | ((uint8_t*)aa)[index] = 0; // skip runs after right |
| 383 | ((int16_t*)runs)[index] = SkToS16(left - prevRite); |
| 384 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 385 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 386 | prevRite = right; |
| 387 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 388 | |
| 389 | if (prevRite > x) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 390 | ((int16_t*)runs)[prevRite - x] = 0; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 391 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 392 | if (x < 0) { |
| 393 | int skip = runs[0]; |
| 394 | SkASSERT(skip >= -x); |
| 395 | aa += skip; |
| 396 | runs += skip; |
| 397 | x += skip; |
| 398 | } |
| 399 | fBlitter->blitAntiH(x, y, aa, runs); |
| 400 | } |
| 401 | } |
| 402 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 403 | void SkRgnClipBlitter::blitV(int x, int y, int height, SkAlpha alpha) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 404 | SkIRect bounds; |
| 405 | bounds.set(x, y, x + 1, y + height); |
| 406 | |
| 407 | SkRegion::Cliperator iter(*fRgn, bounds); |
| 408 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 409 | while (!iter.done()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 410 | const SkIRect& r = iter.rect(); |
| 411 | SkASSERT(bounds.contains(r)); |
| 412 | |
| 413 | fBlitter->blitV(x, r.fTop, r.height(), alpha); |
| 414 | iter.next(); |
| 415 | } |
| 416 | } |
| 417 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 418 | void SkRgnClipBlitter::blitRect(int x, int y, int width, int height) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 419 | SkIRect bounds; |
| 420 | bounds.set(x, y, x + width, y + height); |
| 421 | |
| 422 | SkRegion::Cliperator iter(*fRgn, bounds); |
| 423 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 424 | while (!iter.done()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 425 | const SkIRect& r = iter.rect(); |
| 426 | SkASSERT(bounds.contains(r)); |
| 427 | |
| 428 | fBlitter->blitRect(r.fLeft, r.fTop, r.width(), r.height()); |
| 429 | iter.next(); |
| 430 | } |
| 431 | } |
| 432 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 433 | void SkRgnClipBlitter::blitMask(const SkMask& mask, const SkIRect& clip) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 434 | SkASSERT(mask.fBounds.contains(clip)); |
| 435 | |
| 436 | SkRegion::Cliperator iter(*fRgn, clip); |
| 437 | const SkIRect& r = iter.rect(); |
| 438 | SkBlitter* blitter = fBlitter; |
| 439 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 440 | while (!iter.done()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 441 | blitter->blitMask(mask, r); |
| 442 | iter.next(); |
| 443 | } |
| 444 | } |
| 445 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 446 | const SkBitmap* SkRgnClipBlitter::justAnOpaqueColor(uint32_t* value) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 447 | return fBlitter->justAnOpaqueColor(value); |
| 448 | } |
| 449 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 450 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 451 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 452 | SkBlitter* SkBlitterClipper::apply(SkBlitter* blitter, const SkRegion* clip, |
| 453 | const SkIRect* ir) { |
| 454 | if (clip) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 455 | const SkIRect& clipR = clip->getBounds(); |
| 456 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 457 | if (clip->isEmpty() || (ir && !SkIRect::Intersects(clipR, *ir))) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 458 | blitter = &fNullBlitter; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 459 | } else if (clip->isRect()) { |
| 460 | if (ir == NULL || !clipR.contains(*ir)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 461 | fRectBlitter.init(blitter, clipR); |
| 462 | blitter = &fRectBlitter; |
| 463 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 464 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 465 | fRgnBlitter.init(blitter, clip); |
| 466 | blitter = &fRgnBlitter; |
| 467 | } |
| 468 | } |
| 469 | return blitter; |
| 470 | } |
| 471 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 472 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 473 | |
| 474 | #include "SkColorShader.h" |
| 475 | #include "SkColorPriv.h" |
| 476 | |
| 477 | class Sk3DShader : public SkShader { |
| 478 | public: |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 479 | Sk3DShader(SkShader* proxy) : fProxy(proxy) { |
| 480 | SkSafeRef(proxy); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 481 | fMask = NULL; |
| 482 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 483 | |
| 484 | virtual ~Sk3DShader() { |
| 485 | SkSafeUnref(fProxy); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 486 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 487 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 488 | void setMask(const SkMask* mask) { fMask = mask; } |
| 489 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 490 | virtual bool setContext(const SkBitmap& device, const SkPaint& paint, |
| 491 | const SkMatrix& matrix) { |
| 492 | if (fProxy) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 493 | return fProxy->setContext(device, paint, matrix); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 494 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 495 | fPMColor = SkPreMultiplyColor(paint.getColor()); |
| 496 | return this->INHERITED::setContext(device, paint, matrix); |
| 497 | } |
| 498 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 499 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 500 | virtual void shadeSpan(int x, int y, SkPMColor span[], int count) { |
| 501 | if (fProxy) { |
| 502 | fProxy->shadeSpan(x, y, span, count); |
| 503 | } |
| 504 | |
| 505 | if (fMask == NULL) { |
| 506 | if (fProxy == NULL) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 507 | sk_memset32(span, fPMColor, count); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 508 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 509 | return; |
| 510 | } |
| 511 | |
| 512 | SkASSERT(fMask->fBounds.contains(x, y)); |
| 513 | SkASSERT(fMask->fBounds.contains(x + count - 1, y)); |
| 514 | |
| 515 | size_t size = fMask->computeImageSize(); |
reed@google.com | 7989186 | 2011-10-18 15:44:57 +0000 | [diff] [blame^] | 516 | const uint8_t* alpha = fMask->getAddr8(x, y); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 517 | const uint8_t* mulp = alpha + size; |
| 518 | const uint8_t* addp = mulp + size; |
| 519 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 520 | if (fProxy) { |
| 521 | for (int i = 0; i < count; i++) { |
| 522 | if (alpha[i]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 523 | SkPMColor c = span[i]; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 524 | if (c) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 525 | unsigned a = SkGetPackedA32(c); |
| 526 | unsigned r = SkGetPackedR32(c); |
| 527 | unsigned g = SkGetPackedG32(c); |
| 528 | unsigned b = SkGetPackedB32(c); |
| 529 | |
| 530 | unsigned mul = SkAlpha255To256(mulp[i]); |
| 531 | unsigned add = addp[i]; |
| 532 | |
| 533 | r = SkFastMin32(SkAlphaMul(r, mul) + add, a); |
| 534 | g = SkFastMin32(SkAlphaMul(g, mul) + add, a); |
| 535 | b = SkFastMin32(SkAlphaMul(b, mul) + add, a); |
| 536 | |
| 537 | span[i] = SkPackARGB32(a, r, g, b); |
| 538 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 539 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 540 | span[i] = 0; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 541 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 542 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 543 | } else { // color |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 544 | unsigned a = SkGetPackedA32(fPMColor); |
| 545 | unsigned r = SkGetPackedR32(fPMColor); |
| 546 | unsigned g = SkGetPackedG32(fPMColor); |
| 547 | unsigned b = SkGetPackedB32(fPMColor); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 548 | for (int i = 0; i < count; i++) { |
| 549 | if (alpha[i]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 550 | unsigned mul = SkAlpha255To256(mulp[i]); |
| 551 | unsigned add = addp[i]; |
| 552 | |
| 553 | span[i] = SkPackARGB32( a, |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 554 | SkFastMin32(SkAlphaMul(r, mul) + add, a), |
| 555 | SkFastMin32(SkAlphaMul(g, mul) + add, a), |
| 556 | SkFastMin32(SkAlphaMul(b, mul) + add, a)); |
| 557 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 558 | span[i] = 0; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 559 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 560 | } |
| 561 | } |
| 562 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 563 | |
| 564 | virtual void beginSession() { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 565 | this->INHERITED::beginSession(); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 566 | if (fProxy) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 567 | fProxy->beginSession(); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 568 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 569 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 570 | |
| 571 | virtual void endSession() { |
| 572 | if (fProxy) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 573 | fProxy->endSession(); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 574 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 575 | this->INHERITED::endSession(); |
| 576 | } |
| 577 | |
| 578 | protected: |
| 579 | Sk3DShader(SkFlattenableReadBuffer& buffer) : |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 580 | INHERITED(buffer) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 581 | fProxy = static_cast<SkShader*>(buffer.readFlattenable()); |
| 582 | fPMColor = buffer.readU32(); |
| 583 | fMask = NULL; |
| 584 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 585 | |
| 586 | virtual void flatten(SkFlattenableWriteBuffer& buffer) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 587 | this->INHERITED::flatten(buffer); |
| 588 | buffer.writeFlattenable(fProxy); |
| 589 | buffer.write32(fPMColor); |
| 590 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 591 | |
| 592 | virtual Factory getFactory() { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 593 | return CreateProc; |
| 594 | } |
| 595 | |
| 596 | private: |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 597 | static SkFlattenable* CreateProc(SkFlattenableReadBuffer& buffer) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 598 | return SkNEW_ARGS(Sk3DShader, (buffer)); |
| 599 | } |
| 600 | |
| 601 | SkShader* fProxy; |
| 602 | SkPMColor fPMColor; |
| 603 | const SkMask* fMask; |
| 604 | |
| 605 | typedef SkShader INHERITED; |
| 606 | }; |
| 607 | |
| 608 | class Sk3DBlitter : public SkBlitter { |
| 609 | public: |
| 610 | Sk3DBlitter(SkBlitter* proxy, Sk3DShader* shader, void (*killProc)(void*)) |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 611 | : fProxy(proxy), f3DShader(shader), fKillProc(killProc) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 612 | shader->ref(); |
| 613 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 614 | |
| 615 | virtual ~Sk3DBlitter() { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 616 | f3DShader->unref(); |
| 617 | fKillProc(fProxy); |
| 618 | } |
| 619 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 620 | virtual void blitH(int x, int y, int width) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 621 | fProxy->blitH(x, y, width); |
| 622 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 623 | |
| 624 | virtual void blitAntiH(int x, int y, const SkAlpha antialias[], |
| 625 | const int16_t runs[]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 626 | fProxy->blitAntiH(x, y, antialias, runs); |
| 627 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 628 | |
| 629 | virtual void blitV(int x, int y, int height, SkAlpha alpha) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 630 | fProxy->blitV(x, y, height, alpha); |
| 631 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 632 | |
| 633 | virtual void blitRect(int x, int y, int width, int height) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 634 | fProxy->blitRect(x, y, width, height); |
| 635 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 636 | |
| 637 | virtual void blitMask(const SkMask& mask, const SkIRect& clip) { |
| 638 | if (mask.fFormat == SkMask::k3D_Format) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 639 | f3DShader->setMask(&mask); |
| 640 | |
| 641 | ((SkMask*)&mask)->fFormat = SkMask::kA8_Format; |
| 642 | fProxy->blitMask(mask, clip); |
| 643 | ((SkMask*)&mask)->fFormat = SkMask::k3D_Format; |
| 644 | |
| 645 | f3DShader->setMask(NULL); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 646 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 647 | fProxy->blitMask(mask, clip); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 648 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 649 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 650 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 651 | private: |
| 652 | SkBlitter* fProxy; |
| 653 | Sk3DShader* f3DShader; |
| 654 | void (*fKillProc)(void*); |
| 655 | }; |
| 656 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 657 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 658 | |
| 659 | #include "SkCoreBlitters.h" |
| 660 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 661 | class SkAutoCallProc { |
| 662 | public: |
| 663 | typedef void (*Proc)(void*); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 664 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 665 | SkAutoCallProc(void* obj, Proc proc) |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 666 | : fObj(obj), fProc(proc) {} |
| 667 | |
| 668 | ~SkAutoCallProc() { |
| 669 | if (fObj && fProc) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 670 | fProc(fObj); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 671 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 672 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 673 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 674 | void* get() const { return fObj; } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 675 | |
| 676 | void* detach() { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 677 | void* obj = fObj; |
| 678 | fObj = NULL; |
| 679 | return obj; |
| 680 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 681 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 682 | private: |
| 683 | void* fObj; |
| 684 | Proc fProc; |
| 685 | }; |
| 686 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 687 | static void destroy_blitter(void* blitter) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 688 | ((SkBlitter*)blitter)->~SkBlitter(); |
| 689 | } |
| 690 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 691 | static void delete_blitter(void* blitter) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 692 | SkDELETE((SkBlitter*)blitter); |
| 693 | } |
| 694 | |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 695 | static bool just_solid_color(const SkPaint& paint) { |
| 696 | if (paint.getAlpha() == 0xFF && paint.getColorFilter() == NULL) { |
| 697 | SkShader* shader = paint.getShader(); |
| 698 | if (NULL == shader || |
| 699 | (shader->getFlags() & SkShader::kOpaqueAlpha_Flag)) { |
| 700 | return true; |
| 701 | } |
| 702 | } |
| 703 | return false; |
| 704 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 705 | |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 706 | /** By analyzing the paint (with an xfermode), we may decide we can take |
| 707 | special action. This enum lists our possible actions |
| 708 | */ |
| 709 | enum XferInterp { |
| 710 | kNormal_XferInterp, // no special interpretation, draw normally |
| 711 | kSrcOver_XferInterp, // draw as if in srcover mode |
| 712 | kSkipDrawing_XferInterp // draw nothing |
| 713 | }; |
| 714 | |
| 715 | static XferInterp interpret_xfermode(const SkPaint& paint, SkXfermode* xfer, |
| 716 | SkBitmap::Config deviceConfig) { |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 717 | SkXfermode::Mode mode; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 718 | |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 719 | if (SkXfermode::IsMode(xfer, &mode)) { |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 720 | switch (mode) { |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 721 | case SkXfermode::kSrc_Mode: |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 722 | if (just_solid_color(paint)) { |
| 723 | return kSrcOver_XferInterp; |
| 724 | } |
| 725 | break; |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 726 | case SkXfermode::kDst_Mode: |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 727 | return kSkipDrawing_XferInterp; |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 728 | case SkXfermode::kSrcOver_Mode: |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 729 | return kSrcOver_XferInterp; |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 730 | case SkXfermode::kDstOver_Mode: |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 731 | if (SkBitmap::kRGB_565_Config == deviceConfig) { |
| 732 | return kSkipDrawing_XferInterp; |
| 733 | } |
| 734 | break; |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 735 | case SkXfermode::kSrcIn_Mode: |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 736 | if (SkBitmap::kRGB_565_Config == deviceConfig && |
| 737 | just_solid_color(paint)) { |
| 738 | return kSrcOver_XferInterp; |
| 739 | } |
| 740 | break; |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 741 | case SkXfermode::kDstIn_Mode: |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 742 | if (just_solid_color(paint)) { |
| 743 | return kSkipDrawing_XferInterp; |
| 744 | } |
| 745 | break; |
| 746 | default: |
| 747 | break; |
| 748 | } |
| 749 | } |
| 750 | return kNormal_XferInterp; |
| 751 | } |
| 752 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 753 | SkBlitter* SkBlitter::Choose(const SkBitmap& device, |
| 754 | const SkMatrix& matrix, |
reed@google.com | 6b7aee3 | 2011-04-19 18:36:09 +0000 | [diff] [blame] | 755 | const SkPaint& origPaint, |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 756 | void* storage, size_t storageSize) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 757 | SkASSERT(storageSize == 0 || storage != NULL); |
| 758 | |
| 759 | SkBlitter* blitter = NULL; |
| 760 | |
| 761 | // which check, in case we're being called by a client with a dummy device |
| 762 | // (e.g. they have a bounder that always aborts the draw) |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 763 | if (SkBitmap::kNo_Config == device.getConfig()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 764 | SK_PLACEMENT_NEW(blitter, SkNullBlitter, storage, storageSize); |
| 765 | return blitter; |
| 766 | } |
| 767 | |
reed@google.com | 6b7aee3 | 2011-04-19 18:36:09 +0000 | [diff] [blame] | 768 | SkPaint paint(origPaint); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 769 | SkShader* shader = paint.getShader(); |
reed@google.com | 6b7aee3 | 2011-04-19 18:36:09 +0000 | [diff] [blame] | 770 | SkColorFilter* cf = paint.getColorFilter(); |
| 771 | SkXfermode* mode = paint.getXfermode(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 772 | |
| 773 | Sk3DShader* shader3D = NULL; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 774 | if (paint.getMaskFilter() != NULL && |
| 775 | paint.getMaskFilter()->getFormat() == SkMask::k3D_Format) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 776 | shader3D = SkNEW_ARGS(Sk3DShader, (shader)); |
reed@google.com | 6b7aee3 | 2011-04-19 18:36:09 +0000 | [diff] [blame] | 777 | paint.setShader(shader3D)->unref(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 778 | shader = shader3D; |
| 779 | } |
| 780 | |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 781 | if (NULL != mode) { |
| 782 | switch (interpret_xfermode(paint, mode, device.config())) { |
| 783 | case kSrcOver_XferInterp: |
| 784 | mode = NULL; |
reed@google.com | 6b7aee3 | 2011-04-19 18:36:09 +0000 | [diff] [blame] | 785 | paint.setXfermode(NULL); |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 786 | break; |
| 787 | case kSkipDrawing_XferInterp: |
| 788 | SK_PLACEMENT_NEW(blitter, SkNullBlitter, storage, storageSize); |
| 789 | return blitter; |
| 790 | default: |
| 791 | break; |
| 792 | } |
| 793 | } |
| 794 | |
reed@google.com | 6b7aee3 | 2011-04-19 18:36:09 +0000 | [diff] [blame] | 795 | if (NULL == shader) { |
| 796 | #ifdef SK_IGNORE_CF_OPTIMIZATION |
| 797 | if (mode || cf) { |
| 798 | #else |
| 799 | if (mode) { |
| 800 | #endif |
| 801 | // xfermodes (and filters) require shaders for our current blitters |
| 802 | shader = SkNEW(SkColorShader); |
| 803 | paint.setShader(shader)->unref(); |
| 804 | } else if (cf) { |
| 805 | // if no shader && no xfermode, we just apply the colorfilter to |
| 806 | // our color and move on. |
| 807 | paint.setColor(cf->filterColor(paint.getColor())); |
| 808 | paint.setColorFilter(NULL); |
| 809 | cf = NULL; |
| 810 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 811 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 812 | |
reed@google.com | 6b7aee3 | 2011-04-19 18:36:09 +0000 | [diff] [blame] | 813 | if (cf) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 814 | SkASSERT(shader); |
reed@google.com | 6b7aee3 | 2011-04-19 18:36:09 +0000 | [diff] [blame] | 815 | shader = SkNEW_ARGS(SkFilterShader, (shader, cf)); |
| 816 | paint.setShader(shader)->unref(); |
reed@android.com | 1fc4c60 | 2009-10-02 16:34:57 +0000 | [diff] [blame] | 817 | // blitters should ignore the presence/absence of a filter, since |
| 818 | // if there is one, the shader will take care of it. |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 819 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 820 | |
reed@android.com | cafc9f9 | 2009-08-22 03:44:57 +0000 | [diff] [blame] | 821 | if (shader && !shader->setContext(device, paint, matrix)) { |
| 822 | return SkNEW(SkNullBlitter); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 823 | } |
| 824 | |
| 825 | switch (device.getConfig()) { |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 826 | case SkBitmap::kA1_Config: |
| 827 | SK_PLACEMENT_NEW_ARGS(blitter, SkA1_Blitter, |
| 828 | storage, storageSize, (device, paint)); |
| 829 | break; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 830 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 831 | case SkBitmap::kA8_Config: |
| 832 | if (shader) { |
| 833 | SK_PLACEMENT_NEW_ARGS(blitter, SkA8_Shader_Blitter, |
| 834 | storage, storageSize, (device, paint)); |
| 835 | } else { |
| 836 | SK_PLACEMENT_NEW_ARGS(blitter, SkA8_Blitter, |
| 837 | storage, storageSize, (device, paint)); |
| 838 | } |
| 839 | break; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 840 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 841 | case SkBitmap::kARGB_4444_Config: |
| 842 | blitter = SkBlitter_ChooseD4444(device, paint, storage, storageSize); |
| 843 | break; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 844 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 845 | case SkBitmap::kRGB_565_Config: |
| 846 | blitter = SkBlitter_ChooseD565(device, paint, storage, storageSize); |
| 847 | break; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 848 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 849 | case SkBitmap::kARGB_8888_Config: |
| 850 | if (shader) { |
| 851 | SK_PLACEMENT_NEW_ARGS(blitter, SkARGB32_Shader_Blitter, |
| 852 | storage, storageSize, (device, paint)); |
| 853 | } else if (paint.getColor() == SK_ColorBLACK) { |
| 854 | SK_PLACEMENT_NEW_ARGS(blitter, SkARGB32_Black_Blitter, |
| 855 | storage, storageSize, (device, paint)); |
| 856 | } else if (paint.getAlpha() == 0xFF) { |
| 857 | SK_PLACEMENT_NEW_ARGS(blitter, SkARGB32_Opaque_Blitter, |
| 858 | storage, storageSize, (device, paint)); |
| 859 | } else { |
| 860 | SK_PLACEMENT_NEW_ARGS(blitter, SkARGB32_Blitter, |
| 861 | storage, storageSize, (device, paint)); |
| 862 | } |
| 863 | break; |
| 864 | |
| 865 | default: |
| 866 | SkASSERT(!"unsupported device config"); |
| 867 | SK_PLACEMENT_NEW(blitter, SkNullBlitter, storage, storageSize); |
| 868 | break; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 869 | } |
| 870 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 871 | if (shader3D) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 872 | void (*proc)(void*) = ((void*)storage == (void*)blitter) ? destroy_blitter : delete_blitter; |
| 873 | SkAutoCallProc tmp(blitter, proc); |
| 874 | |
| 875 | blitter = SkNEW_ARGS(Sk3DBlitter, (blitter, shader3D, proc)); |
| 876 | (void)tmp.detach(); |
| 877 | } |
| 878 | return blitter; |
| 879 | } |
| 880 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 881 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 882 | |
| 883 | const uint16_t gMask_0F0F = 0xF0F; |
| 884 | const uint32_t gMask_00FF00FF = 0xFF00FF; |
| 885 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 886 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 887 | |
| 888 | SkShaderBlitter::SkShaderBlitter(const SkBitmap& device, const SkPaint& paint) |
reed@android.com | 5119bdb | 2009-06-12 21:27:03 +0000 | [diff] [blame] | 889 | : INHERITED(device) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 890 | fShader = paint.getShader(); |
| 891 | SkASSERT(fShader); |
| 892 | |
| 893 | fShader->ref(); |
| 894 | fShader->beginSession(); |
reed@android.com | 5119bdb | 2009-06-12 21:27:03 +0000 | [diff] [blame] | 895 | fShaderFlags = fShader->getFlags(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 896 | } |
| 897 | |
reed@android.com | 5119bdb | 2009-06-12 21:27:03 +0000 | [diff] [blame] | 898 | SkShaderBlitter::~SkShaderBlitter() { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 899 | fShader->endSession(); |
| 900 | fShader->unref(); |
| 901 | } |
| 902 | |