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) { |
tomhudson@google.com | 0c00f21 | 2011-12-28 14:59:50 +0000 | [diff] [blame^] | 27 | SkDEBUGFAIL("unimplemented"); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 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[]) { |
tomhudson@google.com | 0c00f21 | 2011-12-28 14:59:50 +0000 | [diff] [blame^] | 32 | SkDEBUGFAIL("unimplemented"); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 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 | |
tomhudson@google.com | 49eac19 | 2011-12-27 13:59:20 +0000 | [diff] [blame] | 55 | /// Default implementation doesn't check for any easy optimizations |
| 56 | /// such as alpha == 0 or 255; also uses blitV(), which some subclasses |
| 57 | /// may not support. |
| 58 | void SkBlitter::blitAntiRect(int x, int y, int width, int height, |
| 59 | SkAlpha leftAlpha, SkAlpha rightAlpha) { |
| 60 | this->blitV(x, y, height, leftAlpha); |
| 61 | this->blitRect(x + 1, y, width, height); |
| 62 | this->blitV(x + width + 1, y, height, rightAlpha); |
| 63 | } |
| 64 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 65 | ////////////////////////////////////////////////////////////////////////////// |
| 66 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 67 | static inline void bits_to_runs(SkBlitter* blitter, int x, int y, |
| 68 | const uint8_t bits[], |
| 69 | U8CPU left_mask, int rowBytes, |
| 70 | U8CPU right_mask) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 71 | int inFill = 0; |
| 72 | int pos = 0; |
| 73 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 74 | while (--rowBytes >= 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 75 | unsigned b = *bits++ & left_mask; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 76 | if (rowBytes == 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 77 | b &= right_mask; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 78 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 79 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 80 | for (unsigned test = 0x80; test != 0; test >>= 1) { |
| 81 | if (b & test) { |
| 82 | if (!inFill) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 83 | pos = x; |
| 84 | inFill = true; |
| 85 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 86 | } else { |
| 87 | if (inFill) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 88 | blitter->blitH(pos, y, x - pos); |
| 89 | inFill = false; |
| 90 | } |
| 91 | } |
| 92 | x += 1; |
| 93 | } |
| 94 | left_mask = 0xFF; |
| 95 | } |
| 96 | |
| 97 | // final cleanup |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 98 | if (inFill) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 99 | blitter->blitH(pos, y, x - pos); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 100 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 101 | } |
| 102 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 103 | void SkBlitter::blitMask(const SkMask& mask, const SkIRect& clip) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 104 | SkASSERT(mask.fBounds.contains(clip)); |
| 105 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 106 | if (mask.fFormat == SkMask::kBW_Format) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 107 | int cx = clip.fLeft; |
| 108 | int cy = clip.fTop; |
| 109 | int maskLeft = mask.fBounds.fLeft; |
| 110 | int mask_rowBytes = mask.fRowBytes; |
| 111 | int height = clip.height(); |
| 112 | |
| 113 | const uint8_t* bits = mask.getAddr1(cx, cy); |
| 114 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 115 | if (cx == maskLeft && clip.fRight == mask.fBounds.fRight) { |
| 116 | while (--height >= 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 117 | bits_to_runs(this, cx, cy, bits, 0xFF, mask_rowBytes, 0xFF); |
| 118 | bits += mask_rowBytes; |
| 119 | cy += 1; |
| 120 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 121 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 122 | int left_edge = cx - maskLeft; |
| 123 | SkASSERT(left_edge >= 0); |
| 124 | int rite_edge = clip.fRight - maskLeft; |
| 125 | SkASSERT(rite_edge > left_edge); |
| 126 | |
| 127 | int left_mask = 0xFF >> (left_edge & 7); |
| 128 | int rite_mask = 0xFF << (8 - (rite_edge & 7)); |
| 129 | int full_runs = (rite_edge >> 3) - ((left_edge + 7) >> 3); |
| 130 | |
reed@google.com | a89c77b | 2011-12-01 21:47:26 +0000 | [diff] [blame] | 131 | // 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] | 132 | if (rite_mask == 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 133 | SkASSERT(full_runs >= 0); |
| 134 | full_runs -= 1; |
| 135 | rite_mask = 0xFF; |
| 136 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 137 | if (left_mask == 0xFF) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 138 | full_runs -= 1; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 139 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 140 | |
reed@google.com | a89c77b | 2011-12-01 21:47:26 +0000 | [diff] [blame] | 141 | // back up manually so we can keep in sync with our byte-aligned src |
| 142 | // have cx reflect our actual starting x-coord |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 143 | cx -= left_edge & 7; |
| 144 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 145 | if (full_runs < 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 146 | SkASSERT((left_mask & rite_mask) != 0); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 147 | while (--height >= 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 148 | bits_to_runs(this, cx, cy, bits, left_mask, 1, rite_mask); |
| 149 | bits += mask_rowBytes; |
| 150 | cy += 1; |
| 151 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 152 | } else { |
| 153 | while (--height >= 0) { |
reed@google.com | a89c77b | 2011-12-01 21:47:26 +0000 | [diff] [blame] | 154 | bits_to_runs(this, cx, cy, bits, left_mask, full_runs + 2, rite_mask); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 155 | bits += mask_rowBytes; |
| 156 | cy += 1; |
| 157 | } |
| 158 | } |
| 159 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 160 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 161 | int width = clip.width(); |
| 162 | SkAutoSTMalloc<64, int16_t> runStorage(width + 1); |
| 163 | int16_t* runs = runStorage.get(); |
reed@google.com | 7989186 | 2011-10-18 15:44:57 +0000 | [diff] [blame] | 164 | const uint8_t* aa = mask.getAddr8(clip.fLeft, clip.fTop); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 165 | |
| 166 | sk_memset16((uint16_t*)runs, 1, width); |
| 167 | runs[width] = 0; |
| 168 | |
| 169 | int height = clip.height(); |
| 170 | int y = clip.fTop; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 171 | while (--height >= 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 172 | this->blitAntiH(clip.fLeft, y, aa, runs); |
| 173 | aa += mask.fRowBytes; |
| 174 | y += 1; |
| 175 | } |
| 176 | } |
| 177 | } |
| 178 | |
| 179 | /////////////////////// these guys are not virtual, just a helpers |
| 180 | |
| 181 | void SkBlitter::blitMaskRegion(const SkMask& mask, const SkRegion& clip) { |
| 182 | if (clip.quickReject(mask.fBounds)) { |
| 183 | return; |
| 184 | } |
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 | SkRegion::Cliperator clipper(clip, mask.fBounds); |
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->blitMask(mask, cr); |
| 191 | clipper.next(); |
| 192 | } |
| 193 | } |
| 194 | |
| 195 | void SkBlitter::blitRectRegion(const SkIRect& rect, const SkRegion& clip) { |
| 196 | SkRegion::Cliperator clipper(clip, rect); |
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 (!clipper.done()) { |
| 199 | const SkIRect& cr = clipper.rect(); |
| 200 | this->blitRect(cr.fLeft, cr.fTop, cr.width(), cr.height()); |
| 201 | clipper.next(); |
| 202 | } |
| 203 | } |
| 204 | |
| 205 | void SkBlitter::blitRegion(const SkRegion& clip) { |
| 206 | SkRegion::Iterator iter(clip); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 207 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 208 | while (!iter.done()) { |
| 209 | const SkIRect& cr = iter.rect(); |
| 210 | this->blitRect(cr.fLeft, cr.fTop, cr.width(), cr.height()); |
| 211 | iter.next(); |
| 212 | } |
| 213 | } |
| 214 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 215 | /////////////////////////////////////////////////////////////////////////////// |
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::blitH(int x, int y, int width) {} |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 218 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 219 | void SkNullBlitter::blitAntiH(int x, int y, const SkAlpha antialias[], |
| 220 | const int16_t runs[]) {} |
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::blitV(int x, int y, int height, SkAlpha alpha) {} |
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::blitRect(int x, int y, int width, int height) {} |
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 | void SkNullBlitter::blitMask(const SkMask& mask, const SkIRect& clip) {} |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 227 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 228 | const SkBitmap* SkNullBlitter::justAnOpaqueColor(uint32_t* value) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 229 | return NULL; |
| 230 | } |
| 231 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 232 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 233 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 234 | static int compute_anti_width(const int16_t runs[]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 235 | int width = 0; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 236 | |
| 237 | for (;;) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 238 | int count = runs[0]; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 239 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 240 | SkASSERT(count >= 0); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 241 | if (count == 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 242 | break; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 243 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 244 | width += count; |
| 245 | runs += count; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 246 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 247 | SkASSERT(width < 20000); |
| 248 | } |
| 249 | return width; |
| 250 | } |
| 251 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 252 | static inline bool y_in_rect(int y, const SkIRect& rect) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 253 | return (unsigned)(y - rect.fTop) < (unsigned)rect.height(); |
| 254 | } |
| 255 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 256 | static inline bool x_in_rect(int x, const SkIRect& rect) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 257 | return (unsigned)(x - rect.fLeft) < (unsigned)rect.width(); |
| 258 | } |
| 259 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 260 | void SkRectClipBlitter::blitH(int left, int y, int width) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 261 | SkASSERT(width > 0); |
| 262 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 263 | if (!y_in_rect(y, fClipRect)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 264 | return; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 265 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 266 | |
| 267 | int right = left + width; |
| 268 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 269 | if (left < fClipRect.fLeft) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 270 | left = fClipRect.fLeft; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 271 | } |
| 272 | if (right > fClipRect.fRight) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 273 | right = fClipRect.fRight; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 274 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 275 | |
| 276 | width = right - left; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 277 | if (width > 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 278 | fBlitter->blitH(left, y, width); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 279 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 280 | } |
| 281 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 282 | void SkRectClipBlitter::blitAntiH(int left, int y, const SkAlpha aa[], |
| 283 | const int16_t runs[]) { |
| 284 | if (!y_in_rect(y, fClipRect) || left >= fClipRect.fRight) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 285 | return; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 286 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 287 | |
| 288 | int x0 = left; |
| 289 | int x1 = left + compute_anti_width(runs); |
| 290 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 291 | if (x1 <= fClipRect.fLeft) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 292 | return; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 293 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 294 | |
| 295 | SkASSERT(x0 < x1); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 296 | if (x0 < fClipRect.fLeft) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 297 | int dx = fClipRect.fLeft - x0; |
| 298 | SkAlphaRuns::BreakAt((int16_t*)runs, (uint8_t*)aa, dx); |
| 299 | runs += dx; |
| 300 | aa += dx; |
| 301 | x0 = fClipRect.fLeft; |
| 302 | } |
| 303 | |
| 304 | SkASSERT(x0 < x1 && runs[x1 - x0] == 0); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 305 | if (x1 > fClipRect.fRight) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 306 | x1 = fClipRect.fRight; |
| 307 | SkAlphaRuns::BreakAt((int16_t*)runs, (uint8_t*)aa, x1 - x0); |
| 308 | ((int16_t*)runs)[x1 - x0] = 0; |
| 309 | } |
| 310 | |
| 311 | SkASSERT(x0 < x1 && runs[x1 - x0] == 0); |
| 312 | SkASSERT(compute_anti_width(runs) == x1 - x0); |
| 313 | |
| 314 | fBlitter->blitAntiH(x0, y, aa, runs); |
| 315 | } |
| 316 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 317 | void SkRectClipBlitter::blitV(int x, int y, int height, SkAlpha alpha) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 318 | SkASSERT(height > 0); |
| 319 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 320 | if (!x_in_rect(x, fClipRect)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 321 | return; |
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 | |
| 324 | int y0 = y; |
| 325 | int y1 = y + height; |
| 326 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 327 | if (y0 < fClipRect.fTop) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 328 | y0 = fClipRect.fTop; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 329 | } |
| 330 | if (y1 > fClipRect.fBottom) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 331 | y1 = fClipRect.fBottom; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 332 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 333 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 334 | if (y0 < y1) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 335 | fBlitter->blitV(x, y0, y1 - y0, alpha); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 336 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 337 | } |
| 338 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 339 | void SkRectClipBlitter::blitRect(int left, int y, int width, int height) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 340 | SkIRect r; |
| 341 | |
| 342 | r.set(left, y, left + width, y + height); |
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->blitRect(r.fLeft, r.fTop, r.width(), r.height()); |
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 | |
tomhudson@google.com | 49eac19 | 2011-12-27 13:59:20 +0000 | [diff] [blame] | 348 | void SkRectClipBlitter::blitAntiRect(int left, int y, int width, int height, |
| 349 | SkAlpha leftAlpha, SkAlpha rightAlpha) { |
| 350 | SkIRect r; |
| 351 | |
| 352 | // The *true* width of the rectangle blitted is width+2: |
| 353 | r.set(left, y, left + width + 2, y + height); |
| 354 | if (r.intersect(fClipRect)) { |
| 355 | if (r.fLeft != left) { |
| 356 | SkASSERT(r.fLeft > left); |
| 357 | leftAlpha = 255; |
| 358 | } |
| 359 | if (r.fRight != left + width + 2) { |
| 360 | SkASSERT(r.fRight < left + width + 2); |
| 361 | rightAlpha = 255; |
| 362 | } |
| 363 | if (255 == leftAlpha && 255 == rightAlpha) { |
| 364 | fBlitter->blitRect(r.fLeft, r.fTop, r.width(), r.height()); |
| 365 | } else if (1 == r.width()) { |
| 366 | if (r.fLeft == left) { |
| 367 | fBlitter->blitV(r.fLeft, r.fTop, r.height(), leftAlpha); |
| 368 | } else { |
| 369 | SkASSERT(r.fLeft == left + width + 1); |
| 370 | fBlitter->blitV(r.fLeft, r.fTop, r.height(), rightAlpha); |
| 371 | } |
| 372 | } else { |
| 373 | fBlitter->blitAntiRect(r.fLeft, r.fTop, r.width() - 2, r.height(), |
| 374 | leftAlpha, rightAlpha); |
| 375 | } |
| 376 | } |
| 377 | } |
| 378 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 379 | void SkRectClipBlitter::blitMask(const SkMask& mask, const SkIRect& clip) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 380 | SkASSERT(mask.fBounds.contains(clip)); |
| 381 | |
| 382 | SkIRect r = clip; |
| 383 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 384 | if (r.intersect(fClipRect)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 385 | fBlitter->blitMask(mask, r); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 386 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 387 | } |
| 388 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 389 | const SkBitmap* SkRectClipBlitter::justAnOpaqueColor(uint32_t* value) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 390 | return fBlitter->justAnOpaqueColor(value); |
| 391 | } |
| 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 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 395 | void SkRgnClipBlitter::blitH(int x, int y, int width) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 396 | SkRegion::Spanerator span(*fRgn, y, x, x + width); |
| 397 | int left, right; |
| 398 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 399 | while (span.next(&left, &right)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 400 | SkASSERT(left < right); |
| 401 | fBlitter->blitH(left, y, right - left); |
| 402 | } |
| 403 | } |
| 404 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 405 | void SkRgnClipBlitter::blitAntiH(int x, int y, const SkAlpha aa[], |
| 406 | const int16_t runs[]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 407 | int width = compute_anti_width(runs); |
| 408 | SkRegion::Spanerator span(*fRgn, y, x, x + width); |
| 409 | int left, right; |
| 410 | SkDEBUGCODE(const SkIRect& bounds = fRgn->getBounds();) |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 411 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 412 | int prevRite = x; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 413 | while (span.next(&left, &right)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 414 | SkASSERT(x <= left); |
| 415 | SkASSERT(left < right); |
| 416 | SkASSERT(left >= bounds.fLeft && right <= bounds.fRight); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 417 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 418 | SkAlphaRuns::Break((int16_t*)runs, (uint8_t*)aa, left - x, right - left); |
| 419 | |
| 420 | // now zero before left |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 421 | if (left > prevRite) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 422 | int index = prevRite - x; |
| 423 | ((uint8_t*)aa)[index] = 0; // skip runs after right |
| 424 | ((int16_t*)runs)[index] = SkToS16(left - prevRite); |
| 425 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 426 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 427 | prevRite = right; |
| 428 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 429 | |
| 430 | if (prevRite > x) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 431 | ((int16_t*)runs)[prevRite - x] = 0; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 432 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 433 | if (x < 0) { |
| 434 | int skip = runs[0]; |
| 435 | SkASSERT(skip >= -x); |
| 436 | aa += skip; |
| 437 | runs += skip; |
| 438 | x += skip; |
| 439 | } |
| 440 | fBlitter->blitAntiH(x, y, aa, runs); |
| 441 | } |
| 442 | } |
| 443 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 444 | void SkRgnClipBlitter::blitV(int x, int y, int height, SkAlpha alpha) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 445 | SkIRect bounds; |
| 446 | bounds.set(x, y, x + 1, y + height); |
| 447 | |
| 448 | SkRegion::Cliperator iter(*fRgn, bounds); |
| 449 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 450 | while (!iter.done()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 451 | const SkIRect& r = iter.rect(); |
| 452 | SkASSERT(bounds.contains(r)); |
| 453 | |
| 454 | fBlitter->blitV(x, r.fTop, r.height(), alpha); |
| 455 | iter.next(); |
| 456 | } |
| 457 | } |
| 458 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 459 | void SkRgnClipBlitter::blitRect(int x, int y, int width, int height) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 460 | SkIRect bounds; |
| 461 | bounds.set(x, y, x + width, y + height); |
| 462 | |
| 463 | SkRegion::Cliperator iter(*fRgn, bounds); |
| 464 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 465 | while (!iter.done()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 466 | const SkIRect& r = iter.rect(); |
| 467 | SkASSERT(bounds.contains(r)); |
| 468 | |
| 469 | fBlitter->blitRect(r.fLeft, r.fTop, r.width(), r.height()); |
| 470 | iter.next(); |
| 471 | } |
| 472 | } |
| 473 | |
tomhudson@google.com | 49eac19 | 2011-12-27 13:59:20 +0000 | [diff] [blame] | 474 | void SkRgnClipBlitter::blitAntiRect(int x, int y, int width, int height, |
| 475 | SkAlpha leftAlpha, SkAlpha rightAlpha) { |
| 476 | // The *true* width of the rectangle to blit is width + 2 |
| 477 | SkIRect bounds; |
| 478 | bounds.set(x, y, x + width + 2, y + height); |
| 479 | |
| 480 | SkRegion::Cliperator iter(*fRgn, bounds); |
| 481 | |
| 482 | while (!iter.done()) { |
| 483 | const SkIRect& r = iter.rect(); |
| 484 | SkASSERT(bounds.contains(r)); |
| 485 | SkASSERT(r.fLeft >= x); |
| 486 | SkASSERT(r.fRight < x + width + 2); |
| 487 | |
| 488 | SkAlpha effectiveLeftAlpha = (r.fLeft == x) ? leftAlpha : 255; |
| 489 | SkAlpha effectiveRightAlpha = (r.fRight == x + width + 2) ? |
| 490 | rightAlpha : 255; |
| 491 | |
| 492 | if (255 == effectiveLeftAlpha && 255 == effectiveRightAlpha) { |
| 493 | fBlitter->blitRect(r.fLeft, r.fTop, r.width(), r.height()); |
| 494 | } else if (1 == r.width()) { |
| 495 | if (r.fLeft == x) { |
| 496 | fBlitter->blitV(r.fLeft, r.fTop, r.height(), |
| 497 | effectiveLeftAlpha); |
| 498 | } else { |
| 499 | SkASSERT(r.fLeft == x + width + 1); |
| 500 | fBlitter->blitV(r.fLeft, r.fTop, r.height(), |
| 501 | effectiveRightAlpha); |
| 502 | } |
| 503 | } else { |
| 504 | fBlitter->blitAntiRect(r.fLeft, r.fTop, r.width() - 2, r.height(), |
| 505 | effectiveLeftAlpha, effectiveRightAlpha); |
| 506 | } |
| 507 | iter.next(); |
| 508 | } |
| 509 | } |
| 510 | |
| 511 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 512 | void SkRgnClipBlitter::blitMask(const SkMask& mask, const SkIRect& clip) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 513 | SkASSERT(mask.fBounds.contains(clip)); |
| 514 | |
| 515 | SkRegion::Cliperator iter(*fRgn, clip); |
| 516 | const SkIRect& r = iter.rect(); |
| 517 | SkBlitter* blitter = fBlitter; |
| 518 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 519 | while (!iter.done()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 520 | blitter->blitMask(mask, r); |
| 521 | iter.next(); |
| 522 | } |
| 523 | } |
| 524 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 525 | const SkBitmap* SkRgnClipBlitter::justAnOpaqueColor(uint32_t* value) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 526 | return fBlitter->justAnOpaqueColor(value); |
| 527 | } |
| 528 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 529 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 530 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 531 | SkBlitter* SkBlitterClipper::apply(SkBlitter* blitter, const SkRegion* clip, |
| 532 | const SkIRect* ir) { |
| 533 | if (clip) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 534 | const SkIRect& clipR = clip->getBounds(); |
| 535 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 536 | if (clip->isEmpty() || (ir && !SkIRect::Intersects(clipR, *ir))) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 537 | blitter = &fNullBlitter; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 538 | } else if (clip->isRect()) { |
| 539 | if (ir == NULL || !clipR.contains(*ir)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 540 | fRectBlitter.init(blitter, clipR); |
| 541 | blitter = &fRectBlitter; |
| 542 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 543 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 544 | fRgnBlitter.init(blitter, clip); |
| 545 | blitter = &fRgnBlitter; |
| 546 | } |
| 547 | } |
| 548 | return blitter; |
| 549 | } |
| 550 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 551 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 552 | |
| 553 | #include "SkColorShader.h" |
| 554 | #include "SkColorPriv.h" |
| 555 | |
| 556 | class Sk3DShader : public SkShader { |
| 557 | public: |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 558 | Sk3DShader(SkShader* proxy) : fProxy(proxy) { |
| 559 | SkSafeRef(proxy); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 560 | fMask = NULL; |
| 561 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 562 | |
| 563 | virtual ~Sk3DShader() { |
| 564 | SkSafeUnref(fProxy); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 565 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 566 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 567 | void setMask(const SkMask* mask) { fMask = mask; } |
| 568 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 569 | virtual bool setContext(const SkBitmap& device, const SkPaint& paint, |
| 570 | const SkMatrix& matrix) { |
| 571 | if (fProxy) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 572 | return fProxy->setContext(device, paint, matrix); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 573 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 574 | fPMColor = SkPreMultiplyColor(paint.getColor()); |
| 575 | return this->INHERITED::setContext(device, paint, matrix); |
| 576 | } |
| 577 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 578 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 579 | virtual void shadeSpan(int x, int y, SkPMColor span[], int count) { |
| 580 | if (fProxy) { |
| 581 | fProxy->shadeSpan(x, y, span, count); |
| 582 | } |
| 583 | |
| 584 | if (fMask == NULL) { |
| 585 | if (fProxy == NULL) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 586 | sk_memset32(span, fPMColor, count); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 587 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 588 | return; |
| 589 | } |
| 590 | |
| 591 | SkASSERT(fMask->fBounds.contains(x, y)); |
| 592 | SkASSERT(fMask->fBounds.contains(x + count - 1, y)); |
| 593 | |
| 594 | size_t size = fMask->computeImageSize(); |
reed@google.com | 7989186 | 2011-10-18 15:44:57 +0000 | [diff] [blame] | 595 | const uint8_t* alpha = fMask->getAddr8(x, y); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 596 | const uint8_t* mulp = alpha + size; |
| 597 | const uint8_t* addp = mulp + size; |
| 598 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 599 | if (fProxy) { |
| 600 | for (int i = 0; i < count; i++) { |
| 601 | if (alpha[i]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 602 | SkPMColor c = span[i]; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 603 | if (c) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 604 | unsigned a = SkGetPackedA32(c); |
| 605 | unsigned r = SkGetPackedR32(c); |
| 606 | unsigned g = SkGetPackedG32(c); |
| 607 | unsigned b = SkGetPackedB32(c); |
| 608 | |
| 609 | unsigned mul = SkAlpha255To256(mulp[i]); |
| 610 | unsigned add = addp[i]; |
| 611 | |
| 612 | r = SkFastMin32(SkAlphaMul(r, mul) + add, a); |
| 613 | g = SkFastMin32(SkAlphaMul(g, mul) + add, a); |
| 614 | b = SkFastMin32(SkAlphaMul(b, mul) + add, a); |
| 615 | |
| 616 | span[i] = SkPackARGB32(a, r, g, b); |
| 617 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 618 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 619 | span[i] = 0; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 620 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 621 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 622 | } else { // color |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 623 | unsigned a = SkGetPackedA32(fPMColor); |
| 624 | unsigned r = SkGetPackedR32(fPMColor); |
| 625 | unsigned g = SkGetPackedG32(fPMColor); |
| 626 | unsigned b = SkGetPackedB32(fPMColor); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 627 | for (int i = 0; i < count; i++) { |
| 628 | if (alpha[i]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 629 | unsigned mul = SkAlpha255To256(mulp[i]); |
| 630 | unsigned add = addp[i]; |
| 631 | |
| 632 | span[i] = SkPackARGB32( a, |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 633 | SkFastMin32(SkAlphaMul(r, mul) + add, a), |
| 634 | SkFastMin32(SkAlphaMul(g, mul) + add, a), |
| 635 | SkFastMin32(SkAlphaMul(b, mul) + add, a)); |
| 636 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 637 | span[i] = 0; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 638 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 639 | } |
| 640 | } |
| 641 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 642 | |
| 643 | virtual void beginSession() { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 644 | this->INHERITED::beginSession(); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 645 | if (fProxy) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 646 | fProxy->beginSession(); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 647 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 648 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 649 | |
| 650 | virtual void endSession() { |
| 651 | if (fProxy) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 652 | fProxy->endSession(); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 653 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 654 | this->INHERITED::endSession(); |
| 655 | } |
| 656 | |
| 657 | protected: |
| 658 | Sk3DShader(SkFlattenableReadBuffer& buffer) : |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 659 | INHERITED(buffer) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 660 | fProxy = static_cast<SkShader*>(buffer.readFlattenable()); |
| 661 | fPMColor = buffer.readU32(); |
| 662 | fMask = NULL; |
| 663 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 664 | |
| 665 | virtual void flatten(SkFlattenableWriteBuffer& buffer) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 666 | this->INHERITED::flatten(buffer); |
| 667 | buffer.writeFlattenable(fProxy); |
| 668 | buffer.write32(fPMColor); |
| 669 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 670 | |
| 671 | virtual Factory getFactory() { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 672 | return CreateProc; |
| 673 | } |
| 674 | |
| 675 | private: |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 676 | static SkFlattenable* CreateProc(SkFlattenableReadBuffer& buffer) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 677 | return SkNEW_ARGS(Sk3DShader, (buffer)); |
| 678 | } |
| 679 | |
| 680 | SkShader* fProxy; |
| 681 | SkPMColor fPMColor; |
| 682 | const SkMask* fMask; |
| 683 | |
| 684 | typedef SkShader INHERITED; |
| 685 | }; |
| 686 | |
| 687 | class Sk3DBlitter : public SkBlitter { |
| 688 | public: |
| 689 | Sk3DBlitter(SkBlitter* proxy, Sk3DShader* shader, void (*killProc)(void*)) |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 690 | : fProxy(proxy), f3DShader(shader), fKillProc(killProc) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 691 | shader->ref(); |
| 692 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 693 | |
| 694 | virtual ~Sk3DBlitter() { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 695 | f3DShader->unref(); |
| 696 | fKillProc(fProxy); |
| 697 | } |
| 698 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 699 | virtual void blitH(int x, int y, int width) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 700 | fProxy->blitH(x, y, width); |
| 701 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 702 | |
| 703 | virtual void blitAntiH(int x, int y, const SkAlpha antialias[], |
| 704 | const int16_t runs[]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 705 | fProxy->blitAntiH(x, y, antialias, runs); |
| 706 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 707 | |
| 708 | virtual void blitV(int x, int y, int height, SkAlpha alpha) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 709 | fProxy->blitV(x, y, height, alpha); |
| 710 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 711 | |
| 712 | virtual void blitRect(int x, int y, int width, int height) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 713 | fProxy->blitRect(x, y, width, height); |
| 714 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 715 | |
| 716 | virtual void blitMask(const SkMask& mask, const SkIRect& clip) { |
| 717 | if (mask.fFormat == SkMask::k3D_Format) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 718 | f3DShader->setMask(&mask); |
| 719 | |
| 720 | ((SkMask*)&mask)->fFormat = SkMask::kA8_Format; |
| 721 | fProxy->blitMask(mask, clip); |
| 722 | ((SkMask*)&mask)->fFormat = SkMask::k3D_Format; |
| 723 | |
| 724 | f3DShader->setMask(NULL); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 725 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 726 | fProxy->blitMask(mask, clip); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 727 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 728 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 729 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 730 | private: |
| 731 | SkBlitter* fProxy; |
| 732 | Sk3DShader* f3DShader; |
| 733 | void (*fKillProc)(void*); |
| 734 | }; |
| 735 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 736 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 737 | |
| 738 | #include "SkCoreBlitters.h" |
| 739 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 740 | class SkAutoCallProc { |
| 741 | public: |
| 742 | typedef void (*Proc)(void*); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 743 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 744 | SkAutoCallProc(void* obj, Proc proc) |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 745 | : fObj(obj), fProc(proc) {} |
| 746 | |
| 747 | ~SkAutoCallProc() { |
| 748 | if (fObj && fProc) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 749 | fProc(fObj); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 750 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 751 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 752 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 753 | void* get() const { return fObj; } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 754 | |
| 755 | void* detach() { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 756 | void* obj = fObj; |
| 757 | fObj = NULL; |
| 758 | return obj; |
| 759 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 760 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 761 | private: |
| 762 | void* fObj; |
| 763 | Proc fProc; |
| 764 | }; |
| 765 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 766 | static void destroy_blitter(void* blitter) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 767 | ((SkBlitter*)blitter)->~SkBlitter(); |
| 768 | } |
| 769 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 770 | static void delete_blitter(void* blitter) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 771 | SkDELETE((SkBlitter*)blitter); |
| 772 | } |
| 773 | |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 774 | static bool just_solid_color(const SkPaint& paint) { |
| 775 | if (paint.getAlpha() == 0xFF && paint.getColorFilter() == NULL) { |
| 776 | SkShader* shader = paint.getShader(); |
| 777 | if (NULL == shader || |
| 778 | (shader->getFlags() & SkShader::kOpaqueAlpha_Flag)) { |
| 779 | return true; |
| 780 | } |
| 781 | } |
| 782 | return false; |
| 783 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 784 | |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 785 | /** By analyzing the paint (with an xfermode), we may decide we can take |
| 786 | special action. This enum lists our possible actions |
| 787 | */ |
| 788 | enum XferInterp { |
| 789 | kNormal_XferInterp, // no special interpretation, draw normally |
| 790 | kSrcOver_XferInterp, // draw as if in srcover mode |
| 791 | kSkipDrawing_XferInterp // draw nothing |
| 792 | }; |
| 793 | |
| 794 | static XferInterp interpret_xfermode(const SkPaint& paint, SkXfermode* xfer, |
| 795 | SkBitmap::Config deviceConfig) { |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 796 | SkXfermode::Mode mode; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 797 | |
mike@reedtribe.org | be2aa2a | 2011-11-17 02:32:04 +0000 | [diff] [blame] | 798 | if (SkXfermode::AsMode(xfer, &mode)) { |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 799 | switch (mode) { |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 800 | case SkXfermode::kSrc_Mode: |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 801 | if (just_solid_color(paint)) { |
| 802 | return kSrcOver_XferInterp; |
| 803 | } |
| 804 | break; |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 805 | case SkXfermode::kDst_Mode: |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 806 | return kSkipDrawing_XferInterp; |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 807 | case SkXfermode::kSrcOver_Mode: |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 808 | return kSrcOver_XferInterp; |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 809 | case SkXfermode::kDstOver_Mode: |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 810 | if (SkBitmap::kRGB_565_Config == deviceConfig) { |
| 811 | return kSkipDrawing_XferInterp; |
| 812 | } |
| 813 | break; |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 814 | case SkXfermode::kSrcIn_Mode: |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 815 | if (SkBitmap::kRGB_565_Config == deviceConfig && |
| 816 | just_solid_color(paint)) { |
| 817 | return kSrcOver_XferInterp; |
| 818 | } |
| 819 | break; |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 820 | case SkXfermode::kDstIn_Mode: |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 821 | if (just_solid_color(paint)) { |
| 822 | return kSkipDrawing_XferInterp; |
| 823 | } |
| 824 | break; |
| 825 | default: |
| 826 | break; |
| 827 | } |
| 828 | } |
| 829 | return kNormal_XferInterp; |
| 830 | } |
| 831 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 832 | SkBlitter* SkBlitter::Choose(const SkBitmap& device, |
| 833 | const SkMatrix& matrix, |
reed@google.com | 6b7aee3 | 2011-04-19 18:36:09 +0000 | [diff] [blame] | 834 | const SkPaint& origPaint, |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 835 | void* storage, size_t storageSize) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 836 | SkASSERT(storageSize == 0 || storage != NULL); |
| 837 | |
| 838 | SkBlitter* blitter = NULL; |
| 839 | |
| 840 | // which check, in case we're being called by a client with a dummy device |
| 841 | // (e.g. they have a bounder that always aborts the draw) |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 842 | if (SkBitmap::kNo_Config == device.getConfig()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 843 | SK_PLACEMENT_NEW(blitter, SkNullBlitter, storage, storageSize); |
| 844 | return blitter; |
| 845 | } |
| 846 | |
reed@google.com | 6b7aee3 | 2011-04-19 18:36:09 +0000 | [diff] [blame] | 847 | SkPaint paint(origPaint); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 848 | SkShader* shader = paint.getShader(); |
reed@google.com | 6b7aee3 | 2011-04-19 18:36:09 +0000 | [diff] [blame] | 849 | SkColorFilter* cf = paint.getColorFilter(); |
| 850 | SkXfermode* mode = paint.getXfermode(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 851 | |
| 852 | Sk3DShader* shader3D = NULL; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 853 | if (paint.getMaskFilter() != NULL && |
| 854 | paint.getMaskFilter()->getFormat() == SkMask::k3D_Format) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 855 | shader3D = SkNEW_ARGS(Sk3DShader, (shader)); |
reed@google.com | 6b7aee3 | 2011-04-19 18:36:09 +0000 | [diff] [blame] | 856 | paint.setShader(shader3D)->unref(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 857 | shader = shader3D; |
| 858 | } |
| 859 | |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 860 | if (NULL != mode) { |
| 861 | switch (interpret_xfermode(paint, mode, device.config())) { |
| 862 | case kSrcOver_XferInterp: |
| 863 | mode = NULL; |
reed@google.com | 6b7aee3 | 2011-04-19 18:36:09 +0000 | [diff] [blame] | 864 | paint.setXfermode(NULL); |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 865 | break; |
| 866 | case kSkipDrawing_XferInterp: |
| 867 | SK_PLACEMENT_NEW(blitter, SkNullBlitter, storage, storageSize); |
| 868 | return blitter; |
| 869 | default: |
| 870 | break; |
| 871 | } |
| 872 | } |
| 873 | |
reed@google.com | 6b7aee3 | 2011-04-19 18:36:09 +0000 | [diff] [blame] | 874 | if (NULL == shader) { |
| 875 | #ifdef SK_IGNORE_CF_OPTIMIZATION |
| 876 | if (mode || cf) { |
| 877 | #else |
| 878 | if (mode) { |
| 879 | #endif |
| 880 | // xfermodes (and filters) require shaders for our current blitters |
| 881 | shader = SkNEW(SkColorShader); |
| 882 | paint.setShader(shader)->unref(); |
| 883 | } else if (cf) { |
| 884 | // if no shader && no xfermode, we just apply the colorfilter to |
| 885 | // our color and move on. |
| 886 | paint.setColor(cf->filterColor(paint.getColor())); |
| 887 | paint.setColorFilter(NULL); |
| 888 | cf = NULL; |
| 889 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 890 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 891 | |
reed@google.com | 6b7aee3 | 2011-04-19 18:36:09 +0000 | [diff] [blame] | 892 | if (cf) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 893 | SkASSERT(shader); |
reed@google.com | 6b7aee3 | 2011-04-19 18:36:09 +0000 | [diff] [blame] | 894 | shader = SkNEW_ARGS(SkFilterShader, (shader, cf)); |
| 895 | paint.setShader(shader)->unref(); |
reed@android.com | 1fc4c60 | 2009-10-02 16:34:57 +0000 | [diff] [blame] | 896 | // blitters should ignore the presence/absence of a filter, since |
| 897 | // if there is one, the shader will take care of it. |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 898 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 899 | |
reed@android.com | cafc9f9 | 2009-08-22 03:44:57 +0000 | [diff] [blame] | 900 | if (shader && !shader->setContext(device, paint, matrix)) { |
| 901 | return SkNEW(SkNullBlitter); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 902 | } |
| 903 | |
| 904 | switch (device.getConfig()) { |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 905 | case SkBitmap::kA1_Config: |
| 906 | SK_PLACEMENT_NEW_ARGS(blitter, SkA1_Blitter, |
| 907 | storage, storageSize, (device, paint)); |
| 908 | break; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 909 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 910 | case SkBitmap::kA8_Config: |
| 911 | if (shader) { |
| 912 | SK_PLACEMENT_NEW_ARGS(blitter, SkA8_Shader_Blitter, |
| 913 | storage, storageSize, (device, paint)); |
| 914 | } else { |
| 915 | SK_PLACEMENT_NEW_ARGS(blitter, SkA8_Blitter, |
| 916 | storage, storageSize, (device, paint)); |
| 917 | } |
| 918 | break; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 919 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 920 | case SkBitmap::kARGB_4444_Config: |
| 921 | blitter = SkBlitter_ChooseD4444(device, paint, storage, storageSize); |
| 922 | break; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 923 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 924 | case SkBitmap::kRGB_565_Config: |
| 925 | blitter = SkBlitter_ChooseD565(device, paint, storage, storageSize); |
| 926 | break; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 927 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 928 | case SkBitmap::kARGB_8888_Config: |
| 929 | if (shader) { |
| 930 | SK_PLACEMENT_NEW_ARGS(blitter, SkARGB32_Shader_Blitter, |
| 931 | storage, storageSize, (device, paint)); |
| 932 | } else if (paint.getColor() == SK_ColorBLACK) { |
| 933 | SK_PLACEMENT_NEW_ARGS(blitter, SkARGB32_Black_Blitter, |
| 934 | storage, storageSize, (device, paint)); |
| 935 | } else if (paint.getAlpha() == 0xFF) { |
| 936 | SK_PLACEMENT_NEW_ARGS(blitter, SkARGB32_Opaque_Blitter, |
| 937 | storage, storageSize, (device, paint)); |
| 938 | } else { |
| 939 | SK_PLACEMENT_NEW_ARGS(blitter, SkARGB32_Blitter, |
| 940 | storage, storageSize, (device, paint)); |
| 941 | } |
| 942 | break; |
| 943 | |
| 944 | default: |
tomhudson@google.com | 0c00f21 | 2011-12-28 14:59:50 +0000 | [diff] [blame^] | 945 | SkDEBUGFAIL("unsupported device config"); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 946 | SK_PLACEMENT_NEW(blitter, SkNullBlitter, storage, storageSize); |
| 947 | break; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 948 | } |
| 949 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 950 | if (shader3D) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 951 | void (*proc)(void*) = ((void*)storage == (void*)blitter) ? destroy_blitter : delete_blitter; |
| 952 | SkAutoCallProc tmp(blitter, proc); |
| 953 | |
| 954 | blitter = SkNEW_ARGS(Sk3DBlitter, (blitter, shader3D, proc)); |
| 955 | (void)tmp.detach(); |
| 956 | } |
| 957 | return blitter; |
| 958 | } |
| 959 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 960 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 961 | |
| 962 | const uint16_t gMask_0F0F = 0xF0F; |
| 963 | const uint32_t gMask_00FF00FF = 0xFF00FF; |
| 964 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 965 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 966 | |
| 967 | SkShaderBlitter::SkShaderBlitter(const SkBitmap& device, const SkPaint& paint) |
reed@android.com | 5119bdb | 2009-06-12 21:27:03 +0000 | [diff] [blame] | 968 | : INHERITED(device) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 969 | fShader = paint.getShader(); |
| 970 | SkASSERT(fShader); |
| 971 | |
| 972 | fShader->ref(); |
| 973 | fShader->beginSession(); |
reed@android.com | 5119bdb | 2009-06-12 21:27:03 +0000 | [diff] [blame] | 974 | fShaderFlags = fShader->getFlags(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 975 | } |
| 976 | |
reed@android.com | 5119bdb | 2009-06-12 21:27:03 +0000 | [diff] [blame] | 977 | SkShaderBlitter::~SkShaderBlitter() { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 978 | fShader->endSession(); |
| 979 | fShader->unref(); |
| 980 | } |
| 981 | |