reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1 | /* libs/graphics/sgl/SkBlitter.cpp |
| 2 | ** |
| 3 | ** Copyright 2006, The Android Open Source Project |
| 4 | ** |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 5 | ** Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | ** you may not use this file except in compliance with the License. |
| 7 | ** You may obtain a copy of the License at |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 8 | ** |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 9 | ** http://www.apache.org/licenses/LICENSE-2.0 |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 10 | ** |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 11 | ** Unless required by applicable law or agreed to in writing, software |
| 12 | ** distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | ** See the License for the specific language governing permissions and |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 15 | ** limitations under the License. |
| 16 | */ |
| 17 | |
| 18 | #include "SkBlitter.h" |
| 19 | #include "SkAntiRun.h" |
| 20 | #include "SkColor.h" |
| 21 | #include "SkColorFilter.h" |
| 22 | #include "SkMask.h" |
| 23 | #include "SkMaskFilter.h" |
| 24 | #include "SkTemplatesPriv.h" |
| 25 | #include "SkUtils.h" |
| 26 | #include "SkXfermode.h" |
| 27 | |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 28 | SkBlitter::~SkBlitter() {} |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 29 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 30 | const SkBitmap* SkBlitter::justAnOpaqueColor(uint32_t* value) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 31 | return NULL; |
| 32 | } |
| 33 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 34 | void SkBlitter::blitH(int x, int y, int width) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 35 | SkASSERT(!"unimplemented"); |
| 36 | } |
| 37 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 38 | void SkBlitter::blitAntiH(int x, int y, const SkAlpha antialias[], |
| 39 | const int16_t runs[]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 40 | SkASSERT(!"unimplemented"); |
| 41 | } |
| 42 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 43 | void SkBlitter::blitV(int x, int y, int height, SkAlpha alpha) { |
| 44 | if (alpha == 255) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 45 | this->blitRect(x, y, 1, height); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 46 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 47 | int16_t runs[2]; |
| 48 | runs[0] = 1; |
| 49 | runs[1] = 0; |
| 50 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 51 | while (--height >= 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 52 | this->blitAntiH(x, y++, &alpha, runs); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 53 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 54 | } |
| 55 | } |
| 56 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 57 | void SkBlitter::blitRect(int x, int y, int width, int height) { |
| 58 | while (--height >= 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 59 | this->blitH(x, y++, width); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 60 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 61 | } |
| 62 | |
| 63 | ////////////////////////////////////////////////////////////////////////////// |
| 64 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 65 | static inline void bits_to_runs(SkBlitter* blitter, int x, int y, |
| 66 | const uint8_t bits[], |
| 67 | U8CPU left_mask, int rowBytes, |
| 68 | U8CPU right_mask) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 69 | int inFill = 0; |
| 70 | int pos = 0; |
| 71 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 72 | while (--rowBytes >= 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 73 | unsigned b = *bits++ & left_mask; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 74 | if (rowBytes == 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 75 | b &= right_mask; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 76 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 77 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 78 | for (unsigned test = 0x80; test != 0; test >>= 1) { |
| 79 | if (b & test) { |
| 80 | if (!inFill) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 81 | pos = x; |
| 82 | inFill = true; |
| 83 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 84 | } else { |
| 85 | if (inFill) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 86 | blitter->blitH(pos, y, x - pos); |
| 87 | inFill = false; |
| 88 | } |
| 89 | } |
| 90 | x += 1; |
| 91 | } |
| 92 | left_mask = 0xFF; |
| 93 | } |
| 94 | |
| 95 | // final cleanup |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 96 | if (inFill) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 97 | blitter->blitH(pos, y, x - pos); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 98 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 99 | } |
| 100 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 101 | void SkBlitter::blitMask(const SkMask& mask, const SkIRect& clip) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 102 | SkASSERT(mask.fBounds.contains(clip)); |
| 103 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 104 | if (mask.fFormat == SkMask::kBW_Format) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 105 | int cx = clip.fLeft; |
| 106 | int cy = clip.fTop; |
| 107 | int maskLeft = mask.fBounds.fLeft; |
| 108 | int mask_rowBytes = mask.fRowBytes; |
| 109 | int height = clip.height(); |
| 110 | |
| 111 | const uint8_t* bits = mask.getAddr1(cx, cy); |
| 112 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 113 | if (cx == maskLeft && clip.fRight == mask.fBounds.fRight) { |
| 114 | while (--height >= 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 115 | bits_to_runs(this, cx, cy, bits, 0xFF, mask_rowBytes, 0xFF); |
| 116 | bits += mask_rowBytes; |
| 117 | cy += 1; |
| 118 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 119 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 120 | int left_edge = cx - maskLeft; |
| 121 | SkASSERT(left_edge >= 0); |
| 122 | int rite_edge = clip.fRight - maskLeft; |
| 123 | SkASSERT(rite_edge > left_edge); |
| 124 | |
| 125 | int left_mask = 0xFF >> (left_edge & 7); |
| 126 | int rite_mask = 0xFF << (8 - (rite_edge & 7)); |
| 127 | int full_runs = (rite_edge >> 3) - ((left_edge + 7) >> 3); |
| 128 | |
| 129 | // 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^] | 130 | if (rite_mask == 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 131 | SkASSERT(full_runs >= 0); |
| 132 | full_runs -= 1; |
| 133 | rite_mask = 0xFF; |
| 134 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 135 | if (left_mask == 0xFF) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 136 | full_runs -= 1; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 137 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 138 | |
| 139 | // back up manually so we can keep in sync with our byte-aligned src |
| 140 | // have cx reflect our actual starting x-coord |
| 141 | cx -= left_edge & 7; |
| 142 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 143 | if (full_runs < 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 144 | SkASSERT((left_mask & rite_mask) != 0); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 145 | while (--height >= 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 146 | bits_to_runs(this, cx, cy, bits, left_mask, 1, rite_mask); |
| 147 | bits += mask_rowBytes; |
| 148 | cy += 1; |
| 149 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 150 | } else { |
| 151 | while (--height >= 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 152 | bits_to_runs(this, cx, cy, bits, left_mask, full_runs + 2, rite_mask); |
| 153 | bits += mask_rowBytes; |
| 154 | cy += 1; |
| 155 | } |
| 156 | } |
| 157 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 158 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 159 | int width = clip.width(); |
| 160 | SkAutoSTMalloc<64, int16_t> runStorage(width + 1); |
| 161 | int16_t* runs = runStorage.get(); |
| 162 | const uint8_t* aa = mask.getAddr(clip.fLeft, clip.fTop); |
| 163 | |
| 164 | sk_memset16((uint16_t*)runs, 1, width); |
| 165 | runs[width] = 0; |
| 166 | |
| 167 | int height = clip.height(); |
| 168 | int y = clip.fTop; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 169 | while (--height >= 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 170 | this->blitAntiH(clip.fLeft, y, aa, runs); |
| 171 | aa += mask.fRowBytes; |
| 172 | y += 1; |
| 173 | } |
| 174 | } |
| 175 | } |
| 176 | |
| 177 | /////////////////////// these guys are not virtual, just a helpers |
| 178 | |
| 179 | void SkBlitter::blitMaskRegion(const SkMask& mask, const SkRegion& clip) { |
| 180 | if (clip.quickReject(mask.fBounds)) { |
| 181 | return; |
| 182 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 183 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 184 | SkRegion::Cliperator clipper(clip, mask.fBounds); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 185 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 186 | while (!clipper.done()) { |
| 187 | const SkIRect& cr = clipper.rect(); |
| 188 | this->blitMask(mask, cr); |
| 189 | clipper.next(); |
| 190 | } |
| 191 | } |
| 192 | |
| 193 | void SkBlitter::blitRectRegion(const SkIRect& rect, const SkRegion& clip) { |
| 194 | SkRegion::Cliperator clipper(clip, rect); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 195 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 196 | while (!clipper.done()) { |
| 197 | const SkIRect& cr = clipper.rect(); |
| 198 | this->blitRect(cr.fLeft, cr.fTop, cr.width(), cr.height()); |
| 199 | clipper.next(); |
| 200 | } |
| 201 | } |
| 202 | |
| 203 | void SkBlitter::blitRegion(const SkRegion& clip) { |
| 204 | SkRegion::Iterator iter(clip); |
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 | while (!iter.done()) { |
| 207 | const SkIRect& cr = iter.rect(); |
| 208 | this->blitRect(cr.fLeft, cr.fTop, cr.width(), cr.height()); |
| 209 | iter.next(); |
| 210 | } |
| 211 | } |
| 212 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 213 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 214 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 215 | void SkNullBlitter::blitH(int x, int y, int width) {} |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 216 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 217 | void SkNullBlitter::blitAntiH(int x, int y, const SkAlpha antialias[], |
| 218 | const int16_t runs[]) {} |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 219 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 220 | void SkNullBlitter::blitV(int x, int y, int height, SkAlpha alpha) {} |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 221 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 222 | void SkNullBlitter::blitRect(int x, int y, int width, int height) {} |
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 | void SkNullBlitter::blitMask(const SkMask& mask, const SkIRect& clip) {} |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 225 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 226 | const SkBitmap* SkNullBlitter::justAnOpaqueColor(uint32_t* value) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 227 | return NULL; |
| 228 | } |
| 229 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 230 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 231 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 232 | static int compute_anti_width(const int16_t runs[]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 233 | int width = 0; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 234 | |
| 235 | for (;;) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 236 | int count = runs[0]; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 237 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 238 | SkASSERT(count >= 0); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 239 | if (count == 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 240 | break; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 241 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 242 | width += count; |
| 243 | runs += count; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 244 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 245 | SkASSERT(width < 20000); |
| 246 | } |
| 247 | return width; |
| 248 | } |
| 249 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 250 | static inline bool y_in_rect(int y, const SkIRect& rect) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 251 | return (unsigned)(y - rect.fTop) < (unsigned)rect.height(); |
| 252 | } |
| 253 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 254 | static inline bool x_in_rect(int x, const SkIRect& rect) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 255 | return (unsigned)(x - rect.fLeft) < (unsigned)rect.width(); |
| 256 | } |
| 257 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 258 | void SkRectClipBlitter::blitH(int left, int y, int width) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 259 | SkASSERT(width > 0); |
| 260 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 261 | if (!y_in_rect(y, fClipRect)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 262 | return; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 263 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 264 | |
| 265 | int right = left + width; |
| 266 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 267 | if (left < fClipRect.fLeft) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 268 | left = fClipRect.fLeft; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 269 | } |
| 270 | if (right > fClipRect.fRight) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 271 | right = fClipRect.fRight; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 272 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 273 | |
| 274 | width = right - left; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 275 | if (width > 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 276 | fBlitter->blitH(left, y, width); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 277 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 278 | } |
| 279 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 280 | void SkRectClipBlitter::blitAntiH(int left, int y, const SkAlpha aa[], |
| 281 | const int16_t runs[]) { |
| 282 | if (!y_in_rect(y, fClipRect) || left >= fClipRect.fRight) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 283 | return; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 284 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 285 | |
| 286 | int x0 = left; |
| 287 | int x1 = left + compute_anti_width(runs); |
| 288 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 289 | if (x1 <= fClipRect.fLeft) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 290 | return; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 291 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 292 | |
| 293 | SkASSERT(x0 < x1); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 294 | if (x0 < fClipRect.fLeft) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 295 | int dx = fClipRect.fLeft - x0; |
| 296 | SkAlphaRuns::BreakAt((int16_t*)runs, (uint8_t*)aa, dx); |
| 297 | runs += dx; |
| 298 | aa += dx; |
| 299 | x0 = fClipRect.fLeft; |
| 300 | } |
| 301 | |
| 302 | SkASSERT(x0 < x1 && runs[x1 - x0] == 0); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 303 | if (x1 > fClipRect.fRight) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 304 | x1 = fClipRect.fRight; |
| 305 | SkAlphaRuns::BreakAt((int16_t*)runs, (uint8_t*)aa, x1 - x0); |
| 306 | ((int16_t*)runs)[x1 - x0] = 0; |
| 307 | } |
| 308 | |
| 309 | SkASSERT(x0 < x1 && runs[x1 - x0] == 0); |
| 310 | SkASSERT(compute_anti_width(runs) == x1 - x0); |
| 311 | |
| 312 | fBlitter->blitAntiH(x0, y, aa, runs); |
| 313 | } |
| 314 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 315 | void SkRectClipBlitter::blitV(int x, int y, int height, SkAlpha alpha) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 316 | SkASSERT(height > 0); |
| 317 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 318 | if (!x_in_rect(x, fClipRect)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 319 | return; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 320 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 321 | |
| 322 | int y0 = y; |
| 323 | int y1 = y + height; |
| 324 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 325 | if (y0 < fClipRect.fTop) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 326 | y0 = fClipRect.fTop; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 327 | } |
| 328 | if (y1 > fClipRect.fBottom) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 329 | y1 = fClipRect.fBottom; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 330 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 331 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 332 | if (y0 < y1) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 333 | fBlitter->blitV(x, y0, y1 - y0, alpha); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 334 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 335 | } |
| 336 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 337 | void SkRectClipBlitter::blitRect(int left, int y, int width, int height) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 338 | SkIRect r; |
| 339 | |
| 340 | r.set(left, y, left + width, y + height); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 341 | if (r.intersect(fClipRect)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 342 | fBlitter->blitRect(r.fLeft, r.fTop, r.width(), r.height()); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 343 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 344 | } |
| 345 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 346 | void SkRectClipBlitter::blitMask(const SkMask& mask, const SkIRect& clip) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 347 | SkASSERT(mask.fBounds.contains(clip)); |
| 348 | |
| 349 | SkIRect r = clip; |
| 350 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 351 | if (r.intersect(fClipRect)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 352 | fBlitter->blitMask(mask, r); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 353 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 354 | } |
| 355 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 356 | const SkBitmap* SkRectClipBlitter::justAnOpaqueColor(uint32_t* value) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 357 | return fBlitter->justAnOpaqueColor(value); |
| 358 | } |
| 359 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 360 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 361 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 362 | void SkRgnClipBlitter::blitH(int x, int y, int width) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 363 | SkRegion::Spanerator span(*fRgn, y, x, x + width); |
| 364 | int left, right; |
| 365 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 366 | while (span.next(&left, &right)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 367 | SkASSERT(left < right); |
| 368 | fBlitter->blitH(left, y, right - left); |
| 369 | } |
| 370 | } |
| 371 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 372 | void SkRgnClipBlitter::blitAntiH(int x, int y, const SkAlpha aa[], |
| 373 | const int16_t runs[]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 374 | int width = compute_anti_width(runs); |
| 375 | SkRegion::Spanerator span(*fRgn, y, x, x + width); |
| 376 | int left, right; |
| 377 | SkDEBUGCODE(const SkIRect& bounds = fRgn->getBounds();) |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 378 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 379 | int prevRite = x; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 380 | while (span.next(&left, &right)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 381 | SkASSERT(x <= left); |
| 382 | SkASSERT(left < right); |
| 383 | SkASSERT(left >= bounds.fLeft && right <= bounds.fRight); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 384 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 385 | SkAlphaRuns::Break((int16_t*)runs, (uint8_t*)aa, left - x, right - left); |
| 386 | |
| 387 | // now zero before left |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 388 | if (left > prevRite) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 389 | int index = prevRite - x; |
| 390 | ((uint8_t*)aa)[index] = 0; // skip runs after right |
| 391 | ((int16_t*)runs)[index] = SkToS16(left - prevRite); |
| 392 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 393 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 394 | prevRite = right; |
| 395 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 396 | |
| 397 | if (prevRite > x) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 398 | ((int16_t*)runs)[prevRite - x] = 0; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 399 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 400 | if (x < 0) { |
| 401 | int skip = runs[0]; |
| 402 | SkASSERT(skip >= -x); |
| 403 | aa += skip; |
| 404 | runs += skip; |
| 405 | x += skip; |
| 406 | } |
| 407 | fBlitter->blitAntiH(x, y, aa, runs); |
| 408 | } |
| 409 | } |
| 410 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 411 | void SkRgnClipBlitter::blitV(int x, int y, int height, SkAlpha alpha) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 412 | SkIRect bounds; |
| 413 | bounds.set(x, y, x + 1, y + height); |
| 414 | |
| 415 | SkRegion::Cliperator iter(*fRgn, bounds); |
| 416 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 417 | while (!iter.done()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 418 | const SkIRect& r = iter.rect(); |
| 419 | SkASSERT(bounds.contains(r)); |
| 420 | |
| 421 | fBlitter->blitV(x, r.fTop, r.height(), alpha); |
| 422 | iter.next(); |
| 423 | } |
| 424 | } |
| 425 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 426 | void SkRgnClipBlitter::blitRect(int x, int y, int width, int height) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 427 | SkIRect bounds; |
| 428 | bounds.set(x, y, x + width, y + height); |
| 429 | |
| 430 | SkRegion::Cliperator iter(*fRgn, bounds); |
| 431 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 432 | while (!iter.done()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 433 | const SkIRect& r = iter.rect(); |
| 434 | SkASSERT(bounds.contains(r)); |
| 435 | |
| 436 | fBlitter->blitRect(r.fLeft, r.fTop, r.width(), r.height()); |
| 437 | iter.next(); |
| 438 | } |
| 439 | } |
| 440 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 441 | void SkRgnClipBlitter::blitMask(const SkMask& mask, const SkIRect& clip) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 442 | SkASSERT(mask.fBounds.contains(clip)); |
| 443 | |
| 444 | SkRegion::Cliperator iter(*fRgn, clip); |
| 445 | const SkIRect& r = iter.rect(); |
| 446 | SkBlitter* blitter = fBlitter; |
| 447 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 448 | while (!iter.done()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 449 | blitter->blitMask(mask, r); |
| 450 | iter.next(); |
| 451 | } |
| 452 | } |
| 453 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 454 | const SkBitmap* SkRgnClipBlitter::justAnOpaqueColor(uint32_t* value) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 455 | return fBlitter->justAnOpaqueColor(value); |
| 456 | } |
| 457 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 458 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 459 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 460 | SkBlitter* SkBlitterClipper::apply(SkBlitter* blitter, const SkRegion* clip, |
| 461 | const SkIRect* ir) { |
| 462 | if (clip) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 463 | const SkIRect& clipR = clip->getBounds(); |
| 464 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 465 | if (clip->isEmpty() || (ir && !SkIRect::Intersects(clipR, *ir))) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 466 | blitter = &fNullBlitter; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 467 | } else if (clip->isRect()) { |
| 468 | if (ir == NULL || !clipR.contains(*ir)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 469 | fRectBlitter.init(blitter, clipR); |
| 470 | blitter = &fRectBlitter; |
| 471 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 472 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 473 | fRgnBlitter.init(blitter, clip); |
| 474 | blitter = &fRgnBlitter; |
| 475 | } |
| 476 | } |
| 477 | return blitter; |
| 478 | } |
| 479 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 480 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 481 | |
| 482 | #include "SkColorShader.h" |
| 483 | #include "SkColorPriv.h" |
| 484 | |
| 485 | class Sk3DShader : public SkShader { |
| 486 | public: |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 487 | Sk3DShader(SkShader* proxy) : fProxy(proxy) { |
| 488 | SkSafeRef(proxy); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 489 | fMask = NULL; |
| 490 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 491 | |
| 492 | virtual ~Sk3DShader() { |
| 493 | SkSafeUnref(fProxy); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 494 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 495 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 496 | void setMask(const SkMask* mask) { fMask = mask; } |
| 497 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 498 | virtual bool setContext(const SkBitmap& device, const SkPaint& paint, |
| 499 | const SkMatrix& matrix) { |
| 500 | if (fProxy) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 501 | return fProxy->setContext(device, paint, matrix); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 502 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 503 | fPMColor = SkPreMultiplyColor(paint.getColor()); |
| 504 | return this->INHERITED::setContext(device, paint, matrix); |
| 505 | } |
| 506 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 507 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 508 | virtual void shadeSpan(int x, int y, SkPMColor span[], int count) { |
| 509 | if (fProxy) { |
| 510 | fProxy->shadeSpan(x, y, span, count); |
| 511 | } |
| 512 | |
| 513 | if (fMask == NULL) { |
| 514 | if (fProxy == NULL) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 515 | sk_memset32(span, fPMColor, count); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 516 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 517 | return; |
| 518 | } |
| 519 | |
| 520 | SkASSERT(fMask->fBounds.contains(x, y)); |
| 521 | SkASSERT(fMask->fBounds.contains(x + count - 1, y)); |
| 522 | |
| 523 | size_t size = fMask->computeImageSize(); |
| 524 | const uint8_t* alpha = fMask->getAddr(x, y); |
| 525 | const uint8_t* mulp = alpha + size; |
| 526 | const uint8_t* addp = mulp + size; |
| 527 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 528 | if (fProxy) { |
| 529 | for (int i = 0; i < count; i++) { |
| 530 | if (alpha[i]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 531 | SkPMColor c = span[i]; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 532 | if (c) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 533 | unsigned a = SkGetPackedA32(c); |
| 534 | unsigned r = SkGetPackedR32(c); |
| 535 | unsigned g = SkGetPackedG32(c); |
| 536 | unsigned b = SkGetPackedB32(c); |
| 537 | |
| 538 | unsigned mul = SkAlpha255To256(mulp[i]); |
| 539 | unsigned add = addp[i]; |
| 540 | |
| 541 | r = SkFastMin32(SkAlphaMul(r, mul) + add, a); |
| 542 | g = SkFastMin32(SkAlphaMul(g, mul) + add, a); |
| 543 | b = SkFastMin32(SkAlphaMul(b, mul) + add, a); |
| 544 | |
| 545 | span[i] = SkPackARGB32(a, r, g, b); |
| 546 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 547 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 548 | span[i] = 0; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 549 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 550 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 551 | } else { // color |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 552 | unsigned a = SkGetPackedA32(fPMColor); |
| 553 | unsigned r = SkGetPackedR32(fPMColor); |
| 554 | unsigned g = SkGetPackedG32(fPMColor); |
| 555 | unsigned b = SkGetPackedB32(fPMColor); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 556 | for (int i = 0; i < count; i++) { |
| 557 | if (alpha[i]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 558 | unsigned mul = SkAlpha255To256(mulp[i]); |
| 559 | unsigned add = addp[i]; |
| 560 | |
| 561 | span[i] = SkPackARGB32( a, |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 562 | SkFastMin32(SkAlphaMul(r, mul) + add, a), |
| 563 | SkFastMin32(SkAlphaMul(g, mul) + add, a), |
| 564 | SkFastMin32(SkAlphaMul(b, mul) + add, a)); |
| 565 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 566 | span[i] = 0; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 567 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 568 | } |
| 569 | } |
| 570 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 571 | |
| 572 | virtual void beginSession() { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 573 | this->INHERITED::beginSession(); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 574 | if (fProxy) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 575 | fProxy->beginSession(); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 576 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 577 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 578 | |
| 579 | virtual void endSession() { |
| 580 | if (fProxy) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 581 | fProxy->endSession(); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 582 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 583 | this->INHERITED::endSession(); |
| 584 | } |
| 585 | |
| 586 | protected: |
| 587 | Sk3DShader(SkFlattenableReadBuffer& buffer) : |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 588 | INHERITED(buffer) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 589 | fProxy = static_cast<SkShader*>(buffer.readFlattenable()); |
| 590 | fPMColor = buffer.readU32(); |
| 591 | fMask = NULL; |
| 592 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 593 | |
| 594 | virtual void flatten(SkFlattenableWriteBuffer& buffer) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 595 | this->INHERITED::flatten(buffer); |
| 596 | buffer.writeFlattenable(fProxy); |
| 597 | buffer.write32(fPMColor); |
| 598 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 599 | |
| 600 | virtual Factory getFactory() { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 601 | return CreateProc; |
| 602 | } |
| 603 | |
| 604 | private: |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 605 | static SkFlattenable* CreateProc(SkFlattenableReadBuffer& buffer) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 606 | return SkNEW_ARGS(Sk3DShader, (buffer)); |
| 607 | } |
| 608 | |
| 609 | SkShader* fProxy; |
| 610 | SkPMColor fPMColor; |
| 611 | const SkMask* fMask; |
| 612 | |
| 613 | typedef SkShader INHERITED; |
| 614 | }; |
| 615 | |
| 616 | class Sk3DBlitter : public SkBlitter { |
| 617 | public: |
| 618 | Sk3DBlitter(SkBlitter* proxy, Sk3DShader* shader, void (*killProc)(void*)) |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 619 | : fProxy(proxy), f3DShader(shader), fKillProc(killProc) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 620 | shader->ref(); |
| 621 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 622 | |
| 623 | virtual ~Sk3DBlitter() { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 624 | f3DShader->unref(); |
| 625 | fKillProc(fProxy); |
| 626 | } |
| 627 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 628 | virtual void blitH(int x, int y, int width) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 629 | fProxy->blitH(x, y, width); |
| 630 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 631 | |
| 632 | virtual void blitAntiH(int x, int y, const SkAlpha antialias[], |
| 633 | const int16_t runs[]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 634 | fProxy->blitAntiH(x, y, antialias, runs); |
| 635 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 636 | |
| 637 | virtual void blitV(int x, int y, int height, SkAlpha alpha) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 638 | fProxy->blitV(x, y, height, alpha); |
| 639 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 640 | |
| 641 | virtual void blitRect(int x, int y, int width, int height) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 642 | fProxy->blitRect(x, y, width, height); |
| 643 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 644 | |
| 645 | virtual void blitMask(const SkMask& mask, const SkIRect& clip) { |
| 646 | if (mask.fFormat == SkMask::k3D_Format) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 647 | f3DShader->setMask(&mask); |
| 648 | |
| 649 | ((SkMask*)&mask)->fFormat = SkMask::kA8_Format; |
| 650 | fProxy->blitMask(mask, clip); |
| 651 | ((SkMask*)&mask)->fFormat = SkMask::k3D_Format; |
| 652 | |
| 653 | f3DShader->setMask(NULL); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 654 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 655 | fProxy->blitMask(mask, clip); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 656 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 657 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 658 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 659 | private: |
| 660 | SkBlitter* fProxy; |
| 661 | Sk3DShader* f3DShader; |
| 662 | void (*fKillProc)(void*); |
| 663 | }; |
| 664 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 665 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 666 | |
| 667 | #include "SkCoreBlitters.h" |
| 668 | |
reed@android.com | d6a5f4e | 2009-10-22 16:50:05 +0000 | [diff] [blame] | 669 | class SkAutoRestoreShaderXfer { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 670 | public: |
reed@android.com | d6a5f4e | 2009-10-22 16:50:05 +0000 | [diff] [blame] | 671 | SkAutoRestoreShaderXfer(const SkPaint& p) : fPaint((SkPaint*)&p) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 672 | fShader = fPaint->getShader(); |
reed@android.com | d6a5f4e | 2009-10-22 16:50:05 +0000 | [diff] [blame] | 673 | SkSafeRef(fShader); |
| 674 | fXfer = fPaint->getXfermode(); |
| 675 | SkSafeRef(fXfer); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 676 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 677 | |
reed@android.com | d6a5f4e | 2009-10-22 16:50:05 +0000 | [diff] [blame] | 678 | ~SkAutoRestoreShaderXfer() { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 679 | fPaint->setShader(fShader); |
reed@android.com | d6a5f4e | 2009-10-22 16:50:05 +0000 | [diff] [blame] | 680 | SkSafeUnref(fShader); |
| 681 | fPaint->setXfermode(fXfer); |
| 682 | SkSafeUnref(fXfer); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 683 | } |
reed@android.com | d6a5f4e | 2009-10-22 16:50:05 +0000 | [diff] [blame] | 684 | |
| 685 | SkShader* setShader(SkShader* shader) { |
| 686 | return fPaint->setShader(shader); |
| 687 | } |
| 688 | |
| 689 | SkXfermode* setXfermode(SkXfermode* mode) { |
| 690 | return fPaint->setXfermode(mode); |
| 691 | } |
| 692 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 693 | private: |
| 694 | SkPaint* fPaint; |
| 695 | SkShader* fShader; |
reed@android.com | d6a5f4e | 2009-10-22 16:50:05 +0000 | [diff] [blame] | 696 | SkXfermode* fXfer; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 697 | }; |
| 698 | |
| 699 | class SkAutoCallProc { |
| 700 | public: |
| 701 | typedef void (*Proc)(void*); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 702 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 703 | SkAutoCallProc(void* obj, Proc proc) |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 704 | : fObj(obj), fProc(proc) {} |
| 705 | |
| 706 | ~SkAutoCallProc() { |
| 707 | if (fObj && fProc) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 708 | fProc(fObj); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 709 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 710 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 711 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 712 | void* get() const { return fObj; } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 713 | |
| 714 | void* detach() { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 715 | void* obj = fObj; |
| 716 | fObj = NULL; |
| 717 | return obj; |
| 718 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 719 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 720 | private: |
| 721 | void* fObj; |
| 722 | Proc fProc; |
| 723 | }; |
| 724 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 725 | static void destroy_blitter(void* blitter) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 726 | ((SkBlitter*)blitter)->~SkBlitter(); |
| 727 | } |
| 728 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 729 | static void delete_blitter(void* blitter) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 730 | SkDELETE((SkBlitter*)blitter); |
| 731 | } |
| 732 | |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 733 | static bool just_solid_color(const SkPaint& paint) { |
| 734 | if (paint.getAlpha() == 0xFF && paint.getColorFilter() == NULL) { |
| 735 | SkShader* shader = paint.getShader(); |
| 736 | if (NULL == shader || |
| 737 | (shader->getFlags() & SkShader::kOpaqueAlpha_Flag)) { |
| 738 | return true; |
| 739 | } |
| 740 | } |
| 741 | return false; |
| 742 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 743 | |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 744 | /** By analyzing the paint (with an xfermode), we may decide we can take |
| 745 | special action. This enum lists our possible actions |
| 746 | */ |
| 747 | enum XferInterp { |
| 748 | kNormal_XferInterp, // no special interpretation, draw normally |
| 749 | kSrcOver_XferInterp, // draw as if in srcover mode |
| 750 | kSkipDrawing_XferInterp // draw nothing |
| 751 | }; |
| 752 | |
| 753 | static XferInterp interpret_xfermode(const SkPaint& paint, SkXfermode* xfer, |
| 754 | SkBitmap::Config deviceConfig) { |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 755 | SkXfermode::Mode mode; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 756 | |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 757 | if (SkXfermode::IsMode(xfer, &mode)) { |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 758 | switch (mode) { |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 759 | case SkXfermode::kSrc_Mode: |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 760 | if (just_solid_color(paint)) { |
| 761 | return kSrcOver_XferInterp; |
| 762 | } |
| 763 | break; |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 764 | case SkXfermode::kDst_Mode: |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 765 | return kSkipDrawing_XferInterp; |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 766 | case SkXfermode::kSrcOver_Mode: |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 767 | return kSrcOver_XferInterp; |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 768 | case SkXfermode::kDstOver_Mode: |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 769 | if (SkBitmap::kRGB_565_Config == deviceConfig) { |
| 770 | return kSkipDrawing_XferInterp; |
| 771 | } |
| 772 | break; |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 773 | case SkXfermode::kSrcIn_Mode: |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 774 | if (SkBitmap::kRGB_565_Config == deviceConfig && |
| 775 | just_solid_color(paint)) { |
| 776 | return kSrcOver_XferInterp; |
| 777 | } |
| 778 | break; |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 779 | case SkXfermode::kDstIn_Mode: |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 780 | if (just_solid_color(paint)) { |
| 781 | return kSkipDrawing_XferInterp; |
| 782 | } |
| 783 | break; |
| 784 | default: |
| 785 | break; |
| 786 | } |
| 787 | } |
| 788 | return kNormal_XferInterp; |
| 789 | } |
| 790 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 791 | SkBlitter* SkBlitter::Choose(const SkBitmap& device, |
| 792 | const SkMatrix& matrix, |
| 793 | const SkPaint& paint, |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 794 | void* storage, size_t storageSize) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 795 | SkASSERT(storageSize == 0 || storage != NULL); |
| 796 | |
| 797 | SkBlitter* blitter = NULL; |
| 798 | |
| 799 | // which check, in case we're being called by a client with a dummy device |
| 800 | // (e.g. they have a bounder that always aborts the draw) |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 801 | if (SkBitmap::kNo_Config == device.getConfig()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 802 | SK_PLACEMENT_NEW(blitter, SkNullBlitter, storage, storageSize); |
| 803 | return blitter; |
| 804 | } |
| 805 | |
reed@android.com | d6a5f4e | 2009-10-22 16:50:05 +0000 | [diff] [blame] | 806 | SkAutoRestoreShaderXfer restorePaint(paint); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 807 | SkShader* shader = paint.getShader(); |
| 808 | |
| 809 | Sk3DShader* shader3D = NULL; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 810 | if (paint.getMaskFilter() != NULL && |
| 811 | paint.getMaskFilter()->getFormat() == SkMask::k3D_Format) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 812 | shader3D = SkNEW_ARGS(Sk3DShader, (shader)); |
reed@android.com | d6a5f4e | 2009-10-22 16:50:05 +0000 | [diff] [blame] | 813 | restorePaint.setShader(shader3D)->unref(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 814 | shader = shader3D; |
| 815 | } |
| 816 | |
| 817 | SkXfermode* mode = paint.getXfermode(); |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 818 | if (NULL != mode) { |
| 819 | switch (interpret_xfermode(paint, mode, device.config())) { |
| 820 | case kSrcOver_XferInterp: |
| 821 | mode = NULL; |
reed@android.com | d6a5f4e | 2009-10-22 16:50:05 +0000 | [diff] [blame] | 822 | restorePaint.setXfermode(NULL); |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 823 | break; |
| 824 | case kSkipDrawing_XferInterp: |
| 825 | SK_PLACEMENT_NEW(blitter, SkNullBlitter, storage, storageSize); |
| 826 | return blitter; |
| 827 | default: |
| 828 | break; |
| 829 | } |
| 830 | } |
| 831 | |
reed@android.com | 1fc4c60 | 2009-10-02 16:34:57 +0000 | [diff] [blame] | 832 | if (NULL == shader && (NULL != mode || paint.getColorFilter() != NULL)) { |
| 833 | // xfermodes (and filters) require shaders for our current blitters |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 834 | shader = SkNEW(SkColorShader); |
reed@android.com | d6a5f4e | 2009-10-22 16:50:05 +0000 | [diff] [blame] | 835 | restorePaint.setShader(shader)->unref(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 836 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 837 | |
| 838 | if (paint.getColorFilter() != NULL) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 839 | SkASSERT(shader); |
| 840 | shader = SkNEW_ARGS(SkFilterShader, (shader, paint.getColorFilter())); |
reed@android.com | d6a5f4e | 2009-10-22 16:50:05 +0000 | [diff] [blame] | 841 | restorePaint.setShader(shader)->unref(); |
reed@android.com | 1fc4c60 | 2009-10-02 16:34:57 +0000 | [diff] [blame] | 842 | // blitters should ignore the presence/absence of a filter, since |
| 843 | // if there is one, the shader will take care of it. |
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 | |
reed@android.com | cafc9f9 | 2009-08-22 03:44:57 +0000 | [diff] [blame] | 846 | if (shader && !shader->setContext(device, paint, matrix)) { |
| 847 | return SkNEW(SkNullBlitter); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 848 | } |
| 849 | |
| 850 | switch (device.getConfig()) { |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 851 | case SkBitmap::kA1_Config: |
| 852 | SK_PLACEMENT_NEW_ARGS(blitter, SkA1_Blitter, |
| 853 | storage, storageSize, (device, paint)); |
| 854 | break; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 855 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 856 | case SkBitmap::kA8_Config: |
| 857 | if (shader) { |
| 858 | SK_PLACEMENT_NEW_ARGS(blitter, SkA8_Shader_Blitter, |
| 859 | storage, storageSize, (device, paint)); |
| 860 | } else { |
| 861 | SK_PLACEMENT_NEW_ARGS(blitter, SkA8_Blitter, |
| 862 | storage, storageSize, (device, paint)); |
| 863 | } |
| 864 | break; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 865 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 866 | case SkBitmap::kARGB_4444_Config: |
| 867 | blitter = SkBlitter_ChooseD4444(device, paint, storage, storageSize); |
| 868 | break; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 869 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 870 | case SkBitmap::kRGB_565_Config: |
| 871 | blitter = SkBlitter_ChooseD565(device, paint, storage, storageSize); |
| 872 | break; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 873 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 874 | case SkBitmap::kARGB_8888_Config: |
| 875 | if (shader) { |
| 876 | SK_PLACEMENT_NEW_ARGS(blitter, SkARGB32_Shader_Blitter, |
| 877 | storage, storageSize, (device, paint)); |
| 878 | } else if (paint.getColor() == SK_ColorBLACK) { |
| 879 | SK_PLACEMENT_NEW_ARGS(blitter, SkARGB32_Black_Blitter, |
| 880 | storage, storageSize, (device, paint)); |
| 881 | } else if (paint.getAlpha() == 0xFF) { |
| 882 | SK_PLACEMENT_NEW_ARGS(blitter, SkARGB32_Opaque_Blitter, |
| 883 | storage, storageSize, (device, paint)); |
| 884 | } else { |
| 885 | SK_PLACEMENT_NEW_ARGS(blitter, SkARGB32_Blitter, |
| 886 | storage, storageSize, (device, paint)); |
| 887 | } |
| 888 | break; |
| 889 | |
| 890 | default: |
| 891 | SkASSERT(!"unsupported device config"); |
| 892 | SK_PLACEMENT_NEW(blitter, SkNullBlitter, storage, storageSize); |
| 893 | break; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 894 | } |
| 895 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 896 | if (shader3D) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 897 | void (*proc)(void*) = ((void*)storage == (void*)blitter) ? destroy_blitter : delete_blitter; |
| 898 | SkAutoCallProc tmp(blitter, proc); |
| 899 | |
| 900 | blitter = SkNEW_ARGS(Sk3DBlitter, (blitter, shader3D, proc)); |
| 901 | (void)tmp.detach(); |
| 902 | } |
| 903 | return blitter; |
| 904 | } |
| 905 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 906 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 907 | |
| 908 | const uint16_t gMask_0F0F = 0xF0F; |
| 909 | const uint32_t gMask_00FF00FF = 0xFF00FF; |
| 910 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame^] | 911 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 912 | |
| 913 | SkShaderBlitter::SkShaderBlitter(const SkBitmap& device, const SkPaint& paint) |
reed@android.com | 5119bdb | 2009-06-12 21:27:03 +0000 | [diff] [blame] | 914 | : INHERITED(device) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 915 | fShader = paint.getShader(); |
| 916 | SkASSERT(fShader); |
| 917 | |
| 918 | fShader->ref(); |
| 919 | fShader->beginSession(); |
reed@android.com | 5119bdb | 2009-06-12 21:27:03 +0000 | [diff] [blame] | 920 | fShaderFlags = fShader->getFlags(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 921 | } |
| 922 | |
reed@android.com | 5119bdb | 2009-06-12 21:27:03 +0000 | [diff] [blame] | 923 | SkShaderBlitter::~SkShaderBlitter() { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 924 | fShader->endSession(); |
| 925 | fShader->unref(); |
| 926 | } |
| 927 | |