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" |
reed@google.com | 02f65f2 | 2012-08-06 21:20:05 +0000 | [diff] [blame] | 14 | #include "SkFilterShader.h" |
djsollen@google.com | c73dd5c | 2012-08-07 15:54:32 +0000 | [diff] [blame] | 15 | #include "SkFlattenableBuffers.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 16 | #include "SkMask.h" |
| 17 | #include "SkMaskFilter.h" |
| 18 | #include "SkTemplatesPriv.h" |
reed@google.com | 4588490 | 2012-05-11 14:38:51 +0000 | [diff] [blame] | 19 | #include "SkTLazy.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 20 | #include "SkUtils.h" |
| 21 | #include "SkXfermode.h" |
robertphillips@google.com | 76f9e93 | 2013-01-15 20:17:47 +0000 | [diff] [blame] | 22 | #include "SkString.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 23 | |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 24 | SkBlitter::~SkBlitter() {} |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 25 | |
reed@google.com | ea03360 | 2012-12-14 13:13:55 +0000 | [diff] [blame] | 26 | bool SkBlitter::isNullBlitter() const { return false; } |
| 27 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 28 | const SkBitmap* SkBlitter::justAnOpaqueColor(uint32_t* value) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 29 | return NULL; |
| 30 | } |
| 31 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 32 | void SkBlitter::blitH(int x, int y, int width) { |
tomhudson@google.com | 0c00f21 | 2011-12-28 14:59:50 +0000 | [diff] [blame] | 33 | SkDEBUGFAIL("unimplemented"); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 34 | } |
| 35 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 36 | void SkBlitter::blitAntiH(int x, int y, const SkAlpha antialias[], |
| 37 | const int16_t runs[]) { |
tomhudson@google.com | 0c00f21 | 2011-12-28 14:59:50 +0000 | [diff] [blame] | 38 | SkDEBUGFAIL("unimplemented"); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 39 | } |
| 40 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 41 | void SkBlitter::blitV(int x, int y, int height, SkAlpha alpha) { |
| 42 | if (alpha == 255) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 43 | this->blitRect(x, y, 1, height); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 44 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 45 | int16_t runs[2]; |
| 46 | runs[0] = 1; |
| 47 | runs[1] = 0; |
| 48 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 49 | while (--height >= 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 50 | this->blitAntiH(x, y++, &alpha, runs); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 51 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 52 | } |
| 53 | } |
| 54 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 55 | void SkBlitter::blitRect(int x, int y, int width, int height) { |
tomhudson@google.com | a31ac73 | 2011-12-29 16:09:31 +0000 | [diff] [blame] | 56 | SkASSERT(width > 0); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 57 | while (--height >= 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 58 | this->blitH(x, y++, width); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 59 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 60 | } |
| 61 | |
tomhudson@google.com | 49eac19 | 2011-12-27 13:59:20 +0000 | [diff] [blame] | 62 | /// Default implementation doesn't check for any easy optimizations |
| 63 | /// such as alpha == 0 or 255; also uses blitV(), which some subclasses |
| 64 | /// may not support. |
| 65 | void SkBlitter::blitAntiRect(int x, int y, int width, int height, |
| 66 | SkAlpha leftAlpha, SkAlpha rightAlpha) { |
tomhudson@google.com | 4714359 | 2011-12-28 17:58:07 +0000 | [diff] [blame] | 67 | this->blitV(x++, y, height, leftAlpha); |
tomhudson@google.com | a31ac73 | 2011-12-29 16:09:31 +0000 | [diff] [blame] | 68 | if (width > 0) { |
tomhudson@google.com | 4714359 | 2011-12-28 17:58:07 +0000 | [diff] [blame] | 69 | this->blitRect(x, y, width, height); |
| 70 | x += width; |
| 71 | } |
| 72 | this->blitV(x, y, height, rightAlpha); |
tomhudson@google.com | 49eac19 | 2011-12-27 13:59:20 +0000 | [diff] [blame] | 73 | } |
| 74 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 75 | ////////////////////////////////////////////////////////////////////////////// |
| 76 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 77 | static inline void bits_to_runs(SkBlitter* blitter, int x, int y, |
| 78 | const uint8_t bits[], |
| 79 | U8CPU left_mask, int rowBytes, |
| 80 | U8CPU right_mask) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 81 | int inFill = 0; |
| 82 | int pos = 0; |
| 83 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 84 | while (--rowBytes >= 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 85 | unsigned b = *bits++ & left_mask; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 86 | if (rowBytes == 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 87 | b &= right_mask; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 88 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 89 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 90 | for (unsigned test = 0x80; test != 0; test >>= 1) { |
| 91 | if (b & test) { |
| 92 | if (!inFill) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 93 | pos = x; |
| 94 | inFill = true; |
| 95 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 96 | } else { |
| 97 | if (inFill) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 98 | blitter->blitH(pos, y, x - pos); |
| 99 | inFill = false; |
| 100 | } |
| 101 | } |
| 102 | x += 1; |
| 103 | } |
| 104 | left_mask = 0xFF; |
| 105 | } |
| 106 | |
| 107 | // final cleanup |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 108 | if (inFill) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 109 | blitter->blitH(pos, y, x - pos); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 110 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 111 | } |
| 112 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 113 | void SkBlitter::blitMask(const SkMask& mask, const SkIRect& clip) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 114 | SkASSERT(mask.fBounds.contains(clip)); |
| 115 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 116 | if (mask.fFormat == SkMask::kBW_Format) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 117 | int cx = clip.fLeft; |
| 118 | int cy = clip.fTop; |
| 119 | int maskLeft = mask.fBounds.fLeft; |
| 120 | int mask_rowBytes = mask.fRowBytes; |
| 121 | int height = clip.height(); |
| 122 | |
| 123 | const uint8_t* bits = mask.getAddr1(cx, cy); |
| 124 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 125 | if (cx == maskLeft && clip.fRight == mask.fBounds.fRight) { |
| 126 | while (--height >= 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 127 | bits_to_runs(this, cx, cy, bits, 0xFF, mask_rowBytes, 0xFF); |
| 128 | bits += mask_rowBytes; |
| 129 | cy += 1; |
| 130 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 131 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 132 | int left_edge = cx - maskLeft; |
| 133 | SkASSERT(left_edge >= 0); |
| 134 | int rite_edge = clip.fRight - maskLeft; |
| 135 | SkASSERT(rite_edge > left_edge); |
| 136 | |
| 137 | int left_mask = 0xFF >> (left_edge & 7); |
| 138 | int rite_mask = 0xFF << (8 - (rite_edge & 7)); |
| 139 | int full_runs = (rite_edge >> 3) - ((left_edge + 7) >> 3); |
| 140 | |
reed@google.com | a89c77b | 2011-12-01 21:47:26 +0000 | [diff] [blame] | 141 | // 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] | 142 | if (rite_mask == 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 143 | SkASSERT(full_runs >= 0); |
| 144 | full_runs -= 1; |
| 145 | rite_mask = 0xFF; |
| 146 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 147 | if (left_mask == 0xFF) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 148 | full_runs -= 1; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 149 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 150 | |
reed@google.com | a89c77b | 2011-12-01 21:47:26 +0000 | [diff] [blame] | 151 | // back up manually so we can keep in sync with our byte-aligned src |
| 152 | // have cx reflect our actual starting x-coord |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 153 | cx -= left_edge & 7; |
| 154 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 155 | if (full_runs < 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 156 | SkASSERT((left_mask & rite_mask) != 0); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 157 | while (--height >= 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 158 | bits_to_runs(this, cx, cy, bits, left_mask, 1, rite_mask); |
| 159 | bits += mask_rowBytes; |
| 160 | cy += 1; |
| 161 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 162 | } else { |
| 163 | while (--height >= 0) { |
reed@google.com | a89c77b | 2011-12-01 21:47:26 +0000 | [diff] [blame] | 164 | 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] | 165 | bits += mask_rowBytes; |
| 166 | cy += 1; |
| 167 | } |
| 168 | } |
| 169 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 170 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 171 | int width = clip.width(); |
| 172 | SkAutoSTMalloc<64, int16_t> runStorage(width + 1); |
| 173 | int16_t* runs = runStorage.get(); |
reed@google.com | 7989186 | 2011-10-18 15:44:57 +0000 | [diff] [blame] | 174 | const uint8_t* aa = mask.getAddr8(clip.fLeft, clip.fTop); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 175 | |
| 176 | sk_memset16((uint16_t*)runs, 1, width); |
| 177 | runs[width] = 0; |
| 178 | |
| 179 | int height = clip.height(); |
| 180 | int y = clip.fTop; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 181 | while (--height >= 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 182 | this->blitAntiH(clip.fLeft, y, aa, runs); |
| 183 | aa += mask.fRowBytes; |
| 184 | y += 1; |
| 185 | } |
| 186 | } |
| 187 | } |
| 188 | |
| 189 | /////////////////////// these guys are not virtual, just a helpers |
| 190 | |
| 191 | void SkBlitter::blitMaskRegion(const SkMask& mask, const SkRegion& clip) { |
| 192 | if (clip.quickReject(mask.fBounds)) { |
| 193 | return; |
| 194 | } |
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 | SkRegion::Cliperator clipper(clip, mask.fBounds); |
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->blitMask(mask, cr); |
| 201 | clipper.next(); |
| 202 | } |
| 203 | } |
| 204 | |
| 205 | void SkBlitter::blitRectRegion(const SkIRect& rect, const SkRegion& clip) { |
| 206 | SkRegion::Cliperator clipper(clip, rect); |
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 (!clipper.done()) { |
| 209 | const SkIRect& cr = clipper.rect(); |
| 210 | this->blitRect(cr.fLeft, cr.fTop, cr.width(), cr.height()); |
| 211 | clipper.next(); |
| 212 | } |
| 213 | } |
| 214 | |
| 215 | void SkBlitter::blitRegion(const SkRegion& clip) { |
| 216 | SkRegion::Iterator iter(clip); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 217 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 218 | while (!iter.done()) { |
| 219 | const SkIRect& cr = iter.rect(); |
| 220 | this->blitRect(cr.fLeft, cr.fTop, cr.width(), cr.height()); |
| 221 | iter.next(); |
| 222 | } |
| 223 | } |
| 224 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 225 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 226 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 227 | void SkNullBlitter::blitH(int x, int y, int width) {} |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 228 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 229 | void SkNullBlitter::blitAntiH(int x, int y, const SkAlpha antialias[], |
| 230 | const int16_t runs[]) {} |
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 | void SkNullBlitter::blitV(int x, int y, int height, SkAlpha alpha) {} |
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 | void SkNullBlitter::blitRect(int x, int y, int width, int height) {} |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 235 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 236 | void SkNullBlitter::blitMask(const SkMask& mask, const SkIRect& clip) {} |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 237 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 238 | const SkBitmap* SkNullBlitter::justAnOpaqueColor(uint32_t* value) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 239 | return NULL; |
| 240 | } |
| 241 | |
reed@google.com | ea03360 | 2012-12-14 13:13:55 +0000 | [diff] [blame] | 242 | bool SkNullBlitter::isNullBlitter() const { return true; } |
| 243 | |
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 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 246 | static int compute_anti_width(const int16_t runs[]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 247 | int width = 0; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 248 | |
| 249 | for (;;) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 250 | int count = runs[0]; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 251 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 252 | SkASSERT(count >= 0); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 253 | if (count == 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 254 | break; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 255 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 256 | width += count; |
| 257 | runs += count; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 258 | } |
| 259 | return width; |
| 260 | } |
| 261 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 262 | static inline bool y_in_rect(int y, const SkIRect& rect) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 263 | return (unsigned)(y - rect.fTop) < (unsigned)rect.height(); |
| 264 | } |
| 265 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 266 | static inline bool x_in_rect(int x, const SkIRect& rect) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 267 | return (unsigned)(x - rect.fLeft) < (unsigned)rect.width(); |
| 268 | } |
| 269 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 270 | void SkRectClipBlitter::blitH(int left, int y, int width) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 271 | SkASSERT(width > 0); |
| 272 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 273 | if (!y_in_rect(y, fClipRect)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 274 | return; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 275 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 276 | |
| 277 | int right = left + width; |
| 278 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 279 | if (left < fClipRect.fLeft) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 280 | left = fClipRect.fLeft; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 281 | } |
| 282 | if (right > fClipRect.fRight) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 283 | right = fClipRect.fRight; |
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 | width = right - left; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 287 | if (width > 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 288 | fBlitter->blitH(left, y, width); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 289 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 290 | } |
| 291 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 292 | void SkRectClipBlitter::blitAntiH(int left, int y, const SkAlpha aa[], |
| 293 | const int16_t runs[]) { |
| 294 | if (!y_in_rect(y, fClipRect) || left >= fClipRect.fRight) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 295 | return; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 296 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 297 | |
| 298 | int x0 = left; |
| 299 | int x1 = left + compute_anti_width(runs); |
| 300 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 301 | if (x1 <= fClipRect.fLeft) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 302 | return; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 303 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 304 | |
| 305 | SkASSERT(x0 < x1); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 306 | if (x0 < fClipRect.fLeft) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 307 | int dx = fClipRect.fLeft - x0; |
| 308 | SkAlphaRuns::BreakAt((int16_t*)runs, (uint8_t*)aa, dx); |
| 309 | runs += dx; |
| 310 | aa += dx; |
| 311 | x0 = fClipRect.fLeft; |
| 312 | } |
| 313 | |
| 314 | SkASSERT(x0 < x1 && runs[x1 - x0] == 0); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 315 | if (x1 > fClipRect.fRight) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 316 | x1 = fClipRect.fRight; |
| 317 | SkAlphaRuns::BreakAt((int16_t*)runs, (uint8_t*)aa, x1 - x0); |
| 318 | ((int16_t*)runs)[x1 - x0] = 0; |
| 319 | } |
| 320 | |
| 321 | SkASSERT(x0 < x1 && runs[x1 - x0] == 0); |
| 322 | SkASSERT(compute_anti_width(runs) == x1 - x0); |
| 323 | |
| 324 | fBlitter->blitAntiH(x0, y, aa, runs); |
| 325 | } |
| 326 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 327 | void SkRectClipBlitter::blitV(int x, int y, int height, SkAlpha alpha) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 328 | SkASSERT(height > 0); |
| 329 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 330 | if (!x_in_rect(x, fClipRect)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 331 | return; |
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 | |
| 334 | int y0 = y; |
| 335 | int y1 = y + height; |
| 336 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 337 | if (y0 < fClipRect.fTop) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 338 | y0 = fClipRect.fTop; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 339 | } |
| 340 | if (y1 > fClipRect.fBottom) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 341 | y1 = fClipRect.fBottom; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 342 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 343 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 344 | if (y0 < y1) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 345 | fBlitter->blitV(x, y0, y1 - y0, alpha); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 346 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 347 | } |
| 348 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 349 | void SkRectClipBlitter::blitRect(int left, int y, int width, int height) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 350 | SkIRect r; |
| 351 | |
| 352 | r.set(left, y, left + width, y + height); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 353 | if (r.intersect(fClipRect)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 354 | fBlitter->blitRect(r.fLeft, r.fTop, r.width(), r.height()); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 355 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 356 | } |
| 357 | |
tomhudson@google.com | 49eac19 | 2011-12-27 13:59:20 +0000 | [diff] [blame] | 358 | void SkRectClipBlitter::blitAntiRect(int left, int y, int width, int height, |
| 359 | SkAlpha leftAlpha, SkAlpha rightAlpha) { |
| 360 | SkIRect r; |
| 361 | |
| 362 | // The *true* width of the rectangle blitted is width+2: |
| 363 | r.set(left, y, left + width + 2, y + height); |
| 364 | if (r.intersect(fClipRect)) { |
| 365 | if (r.fLeft != left) { |
| 366 | SkASSERT(r.fLeft > left); |
| 367 | leftAlpha = 255; |
| 368 | } |
| 369 | if (r.fRight != left + width + 2) { |
| 370 | SkASSERT(r.fRight < left + width + 2); |
| 371 | rightAlpha = 255; |
| 372 | } |
| 373 | if (255 == leftAlpha && 255 == rightAlpha) { |
| 374 | fBlitter->blitRect(r.fLeft, r.fTop, r.width(), r.height()); |
| 375 | } else if (1 == r.width()) { |
| 376 | if (r.fLeft == left) { |
| 377 | fBlitter->blitV(r.fLeft, r.fTop, r.height(), leftAlpha); |
| 378 | } else { |
| 379 | SkASSERT(r.fLeft == left + width + 1); |
| 380 | fBlitter->blitV(r.fLeft, r.fTop, r.height(), rightAlpha); |
| 381 | } |
| 382 | } else { |
| 383 | fBlitter->blitAntiRect(r.fLeft, r.fTop, r.width() - 2, r.height(), |
| 384 | leftAlpha, rightAlpha); |
| 385 | } |
| 386 | } |
| 387 | } |
| 388 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 389 | void SkRectClipBlitter::blitMask(const SkMask& mask, const SkIRect& clip) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 390 | SkASSERT(mask.fBounds.contains(clip)); |
| 391 | |
| 392 | SkIRect r = clip; |
| 393 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 394 | if (r.intersect(fClipRect)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 395 | fBlitter->blitMask(mask, r); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 396 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 397 | } |
| 398 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 399 | const SkBitmap* SkRectClipBlitter::justAnOpaqueColor(uint32_t* value) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 400 | return fBlitter->justAnOpaqueColor(value); |
| 401 | } |
| 402 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 403 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 404 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 405 | void SkRgnClipBlitter::blitH(int x, int y, int width) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 406 | SkRegion::Spanerator span(*fRgn, y, x, x + width); |
| 407 | int left, right; |
| 408 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 409 | while (span.next(&left, &right)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 410 | SkASSERT(left < right); |
| 411 | fBlitter->blitH(left, y, right - left); |
| 412 | } |
| 413 | } |
| 414 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 415 | void SkRgnClipBlitter::blitAntiH(int x, int y, const SkAlpha aa[], |
| 416 | const int16_t runs[]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 417 | int width = compute_anti_width(runs); |
| 418 | SkRegion::Spanerator span(*fRgn, y, x, x + width); |
| 419 | int left, right; |
| 420 | SkDEBUGCODE(const SkIRect& bounds = fRgn->getBounds();) |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 421 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 422 | int prevRite = x; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 423 | while (span.next(&left, &right)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 424 | SkASSERT(x <= left); |
| 425 | SkASSERT(left < right); |
| 426 | SkASSERT(left >= bounds.fLeft && right <= bounds.fRight); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 427 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 428 | SkAlphaRuns::Break((int16_t*)runs, (uint8_t*)aa, left - x, right - left); |
| 429 | |
| 430 | // now zero before left |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 431 | if (left > prevRite) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 432 | int index = prevRite - x; |
| 433 | ((uint8_t*)aa)[index] = 0; // skip runs after right |
| 434 | ((int16_t*)runs)[index] = SkToS16(left - prevRite); |
| 435 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 436 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 437 | prevRite = right; |
| 438 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 439 | |
| 440 | if (prevRite > x) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 441 | ((int16_t*)runs)[prevRite - x] = 0; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 442 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 443 | if (x < 0) { |
| 444 | int skip = runs[0]; |
| 445 | SkASSERT(skip >= -x); |
| 446 | aa += skip; |
| 447 | runs += skip; |
| 448 | x += skip; |
| 449 | } |
| 450 | fBlitter->blitAntiH(x, y, aa, runs); |
| 451 | } |
| 452 | } |
| 453 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 454 | void SkRgnClipBlitter::blitV(int x, int y, int height, SkAlpha alpha) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 455 | SkIRect bounds; |
| 456 | bounds.set(x, y, x + 1, y + height); |
| 457 | |
| 458 | SkRegion::Cliperator iter(*fRgn, bounds); |
| 459 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 460 | while (!iter.done()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 461 | const SkIRect& r = iter.rect(); |
| 462 | SkASSERT(bounds.contains(r)); |
| 463 | |
| 464 | fBlitter->blitV(x, r.fTop, r.height(), alpha); |
| 465 | iter.next(); |
| 466 | } |
| 467 | } |
| 468 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 469 | void SkRgnClipBlitter::blitRect(int x, int y, int width, int height) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 470 | SkIRect bounds; |
| 471 | bounds.set(x, y, x + width, y + height); |
| 472 | |
| 473 | SkRegion::Cliperator iter(*fRgn, bounds); |
| 474 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 475 | while (!iter.done()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 476 | const SkIRect& r = iter.rect(); |
| 477 | SkASSERT(bounds.contains(r)); |
| 478 | |
| 479 | fBlitter->blitRect(r.fLeft, r.fTop, r.width(), r.height()); |
| 480 | iter.next(); |
| 481 | } |
| 482 | } |
| 483 | |
tomhudson@google.com | 49eac19 | 2011-12-27 13:59:20 +0000 | [diff] [blame] | 484 | void SkRgnClipBlitter::blitAntiRect(int x, int y, int width, int height, |
| 485 | SkAlpha leftAlpha, SkAlpha rightAlpha) { |
| 486 | // The *true* width of the rectangle to blit is width + 2 |
| 487 | SkIRect bounds; |
| 488 | bounds.set(x, y, x + width + 2, y + height); |
| 489 | |
| 490 | SkRegion::Cliperator iter(*fRgn, bounds); |
| 491 | |
| 492 | while (!iter.done()) { |
| 493 | const SkIRect& r = iter.rect(); |
| 494 | SkASSERT(bounds.contains(r)); |
| 495 | SkASSERT(r.fLeft >= x); |
tomhudson@google.com | 31bab39 | 2012-01-03 20:12:42 +0000 | [diff] [blame] | 496 | SkASSERT(r.fRight <= x + width + 2); |
tomhudson@google.com | 49eac19 | 2011-12-27 13:59:20 +0000 | [diff] [blame] | 497 | |
| 498 | SkAlpha effectiveLeftAlpha = (r.fLeft == x) ? leftAlpha : 255; |
| 499 | SkAlpha effectiveRightAlpha = (r.fRight == x + width + 2) ? |
| 500 | rightAlpha : 255; |
| 501 | |
| 502 | if (255 == effectiveLeftAlpha && 255 == effectiveRightAlpha) { |
| 503 | fBlitter->blitRect(r.fLeft, r.fTop, r.width(), r.height()); |
| 504 | } else if (1 == r.width()) { |
| 505 | if (r.fLeft == x) { |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 506 | fBlitter->blitV(r.fLeft, r.fTop, r.height(), |
tomhudson@google.com | 49eac19 | 2011-12-27 13:59:20 +0000 | [diff] [blame] | 507 | effectiveLeftAlpha); |
| 508 | } else { |
| 509 | SkASSERT(r.fLeft == x + width + 1); |
| 510 | fBlitter->blitV(r.fLeft, r.fTop, r.height(), |
| 511 | effectiveRightAlpha); |
| 512 | } |
| 513 | } else { |
| 514 | fBlitter->blitAntiRect(r.fLeft, r.fTop, r.width() - 2, r.height(), |
| 515 | effectiveLeftAlpha, effectiveRightAlpha); |
| 516 | } |
| 517 | iter.next(); |
| 518 | } |
| 519 | } |
| 520 | |
| 521 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 522 | void SkRgnClipBlitter::blitMask(const SkMask& mask, const SkIRect& clip) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 523 | SkASSERT(mask.fBounds.contains(clip)); |
| 524 | |
| 525 | SkRegion::Cliperator iter(*fRgn, clip); |
| 526 | const SkIRect& r = iter.rect(); |
| 527 | SkBlitter* blitter = fBlitter; |
| 528 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 529 | while (!iter.done()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 530 | blitter->blitMask(mask, r); |
| 531 | iter.next(); |
| 532 | } |
| 533 | } |
| 534 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 535 | const SkBitmap* SkRgnClipBlitter::justAnOpaqueColor(uint32_t* value) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 536 | return fBlitter->justAnOpaqueColor(value); |
| 537 | } |
| 538 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 539 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 540 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 541 | SkBlitter* SkBlitterClipper::apply(SkBlitter* blitter, const SkRegion* clip, |
| 542 | const SkIRect* ir) { |
| 543 | if (clip) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 544 | const SkIRect& clipR = clip->getBounds(); |
| 545 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 546 | if (clip->isEmpty() || (ir && !SkIRect::Intersects(clipR, *ir))) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 547 | blitter = &fNullBlitter; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 548 | } else if (clip->isRect()) { |
| 549 | if (ir == NULL || !clipR.contains(*ir)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 550 | fRectBlitter.init(blitter, clipR); |
| 551 | blitter = &fRectBlitter; |
| 552 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 553 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 554 | fRgnBlitter.init(blitter, clip); |
| 555 | blitter = &fRgnBlitter; |
| 556 | } |
| 557 | } |
| 558 | return blitter; |
| 559 | } |
| 560 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 561 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 562 | |
| 563 | #include "SkColorShader.h" |
| 564 | #include "SkColorPriv.h" |
| 565 | |
| 566 | class Sk3DShader : public SkShader { |
| 567 | public: |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 568 | Sk3DShader(SkShader* proxy) : fProxy(proxy) { |
| 569 | SkSafeRef(proxy); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 570 | fMask = NULL; |
| 571 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 572 | |
| 573 | virtual ~Sk3DShader() { |
| 574 | SkSafeUnref(fProxy); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 575 | } |
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 | void setMask(const SkMask* mask) { fMask = mask; } |
| 578 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 579 | virtual bool setContext(const SkBitmap& device, const SkPaint& paint, |
reed@google.com | a641f3f | 2012-12-13 22:16:30 +0000 | [diff] [blame] | 580 | const SkMatrix& matrix) SK_OVERRIDE { |
| 581 | if (!this->INHERITED::setContext(device, paint, matrix)) { |
| 582 | return false; |
| 583 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 584 | if (fProxy) { |
reed@google.com | a641f3f | 2012-12-13 22:16:30 +0000 | [diff] [blame] | 585 | if (!fProxy->setContext(device, paint, matrix)) { |
| 586 | // must keep our set/end context calls balanced |
| 587 | this->INHERITED::endContext(); |
| 588 | return false; |
| 589 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 590 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 591 | fPMColor = SkPreMultiplyColor(paint.getColor()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 592 | } |
reed@google.com | a641f3f | 2012-12-13 22:16:30 +0000 | [diff] [blame] | 593 | return true; |
| 594 | } |
skia.committer@gmail.com | 61b05dc | 2012-12-14 02:02:06 +0000 | [diff] [blame] | 595 | |
reed@google.com | a641f3f | 2012-12-13 22:16:30 +0000 | [diff] [blame] | 596 | virtual void endContext() SK_OVERRIDE { |
| 597 | if (fProxy) { |
| 598 | fProxy->endContext(); |
| 599 | } |
| 600 | this->INHERITED::endContext(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 601 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 602 | |
reed@google.com | a641f3f | 2012-12-13 22:16:30 +0000 | [diff] [blame] | 603 | virtual void shadeSpan(int x, int y, SkPMColor span[], int count) SK_OVERRIDE { |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 604 | if (fProxy) { |
| 605 | fProxy->shadeSpan(x, y, span, count); |
| 606 | } |
| 607 | |
| 608 | if (fMask == NULL) { |
| 609 | if (fProxy == NULL) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 610 | sk_memset32(span, fPMColor, count); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 611 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 612 | return; |
| 613 | } |
| 614 | |
| 615 | SkASSERT(fMask->fBounds.contains(x, y)); |
| 616 | SkASSERT(fMask->fBounds.contains(x + count - 1, y)); |
| 617 | |
| 618 | size_t size = fMask->computeImageSize(); |
reed@google.com | 7989186 | 2011-10-18 15:44:57 +0000 | [diff] [blame] | 619 | const uint8_t* alpha = fMask->getAddr8(x, y); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 620 | const uint8_t* mulp = alpha + size; |
| 621 | const uint8_t* addp = mulp + size; |
| 622 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 623 | if (fProxy) { |
| 624 | for (int i = 0; i < count; i++) { |
| 625 | if (alpha[i]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 626 | SkPMColor c = span[i]; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 627 | if (c) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 628 | unsigned a = SkGetPackedA32(c); |
| 629 | unsigned r = SkGetPackedR32(c); |
| 630 | unsigned g = SkGetPackedG32(c); |
| 631 | unsigned b = SkGetPackedB32(c); |
| 632 | |
| 633 | unsigned mul = SkAlpha255To256(mulp[i]); |
| 634 | unsigned add = addp[i]; |
| 635 | |
| 636 | r = SkFastMin32(SkAlphaMul(r, mul) + add, a); |
| 637 | g = SkFastMin32(SkAlphaMul(g, mul) + add, a); |
| 638 | b = SkFastMin32(SkAlphaMul(b, mul) + add, a); |
| 639 | |
| 640 | span[i] = SkPackARGB32(a, r, g, b); |
| 641 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 642 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 643 | span[i] = 0; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 644 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 645 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 646 | } else { // color |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 647 | unsigned a = SkGetPackedA32(fPMColor); |
| 648 | unsigned r = SkGetPackedR32(fPMColor); |
| 649 | unsigned g = SkGetPackedG32(fPMColor); |
| 650 | unsigned b = SkGetPackedB32(fPMColor); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 651 | for (int i = 0; i < count; i++) { |
| 652 | if (alpha[i]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 653 | unsigned mul = SkAlpha255To256(mulp[i]); |
| 654 | unsigned add = addp[i]; |
| 655 | |
| 656 | span[i] = SkPackARGB32( a, |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 657 | SkFastMin32(SkAlphaMul(r, mul) + add, a), |
| 658 | SkFastMin32(SkAlphaMul(g, mul) + add, a), |
| 659 | SkFastMin32(SkAlphaMul(b, mul) + add, a)); |
| 660 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 661 | span[i] = 0; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 662 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 663 | } |
| 664 | } |
| 665 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 666 | |
robertphillips@google.com | 76f9e93 | 2013-01-15 20:17:47 +0000 | [diff] [blame] | 667 | #ifdef SK_DEVELOPER |
| 668 | virtual void toString(SkString* str) const SK_OVERRIDE { |
| 669 | str->append("Sk3DShader: ("); |
| 670 | |
| 671 | if (NULL != fProxy) { |
| 672 | str->append("Proxy: "); |
| 673 | fProxy->toString(str); |
| 674 | } |
| 675 | |
| 676 | this->INHERITED::toString(str); |
| 677 | |
| 678 | str->append(")"); |
| 679 | } |
| 680 | #endif |
| 681 | |
djsollen@google.com | ba28d03 | 2012-03-26 17:57:35 +0000 | [diff] [blame] | 682 | SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(Sk3DShader) |
| 683 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 684 | protected: |
djsollen@google.com | 5492424 | 2012-03-29 15:18:04 +0000 | [diff] [blame] | 685 | Sk3DShader(SkFlattenableReadBuffer& buffer) : INHERITED(buffer) { |
reed@google.com | 3534822 | 2013-10-16 13:05:06 +0000 | [diff] [blame] | 686 | fProxy = buffer.readShader(); |
djsollen@google.com | c73dd5c | 2012-08-07 15:54:32 +0000 | [diff] [blame] | 687 | fPMColor = buffer.readColor(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 688 | fMask = NULL; |
| 689 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 690 | |
djsollen@google.com | 5492424 | 2012-03-29 15:18:04 +0000 | [diff] [blame] | 691 | virtual void flatten(SkFlattenableWriteBuffer& buffer) const SK_OVERRIDE { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 692 | this->INHERITED::flatten(buffer); |
| 693 | buffer.writeFlattenable(fProxy); |
djsollen@google.com | c73dd5c | 2012-08-07 15:54:32 +0000 | [diff] [blame] | 694 | buffer.writeColor(fPMColor); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 695 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 696 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 697 | private: |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 698 | SkShader* fProxy; |
| 699 | SkPMColor fPMColor; |
| 700 | const SkMask* fMask; |
| 701 | |
| 702 | typedef SkShader INHERITED; |
| 703 | }; |
| 704 | |
| 705 | class Sk3DBlitter : public SkBlitter { |
| 706 | public: |
| 707 | Sk3DBlitter(SkBlitter* proxy, Sk3DShader* shader, void (*killProc)(void*)) |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 708 | : fProxy(proxy), f3DShader(shader), fKillProc(killProc) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 709 | shader->ref(); |
| 710 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 711 | |
| 712 | virtual ~Sk3DBlitter() { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 713 | f3DShader->unref(); |
| 714 | fKillProc(fProxy); |
| 715 | } |
| 716 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 717 | virtual void blitH(int x, int y, int width) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 718 | fProxy->blitH(x, y, width); |
| 719 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 720 | |
| 721 | virtual void blitAntiH(int x, int y, const SkAlpha antialias[], |
| 722 | const int16_t runs[]) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 723 | fProxy->blitAntiH(x, y, antialias, runs); |
| 724 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 725 | |
| 726 | virtual void blitV(int x, int y, int height, SkAlpha alpha) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 727 | fProxy->blitV(x, y, height, alpha); |
| 728 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 729 | |
| 730 | virtual void blitRect(int x, int y, int width, int height) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 731 | fProxy->blitRect(x, y, width, height); |
| 732 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 733 | |
| 734 | virtual void blitMask(const SkMask& mask, const SkIRect& clip) { |
| 735 | if (mask.fFormat == SkMask::k3D_Format) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 736 | f3DShader->setMask(&mask); |
| 737 | |
| 738 | ((SkMask*)&mask)->fFormat = SkMask::kA8_Format; |
| 739 | fProxy->blitMask(mask, clip); |
| 740 | ((SkMask*)&mask)->fFormat = SkMask::k3D_Format; |
| 741 | |
| 742 | f3DShader->setMask(NULL); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 743 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 744 | fProxy->blitMask(mask, clip); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 745 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 746 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 747 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 748 | private: |
| 749 | SkBlitter* fProxy; |
| 750 | Sk3DShader* f3DShader; |
| 751 | void (*fKillProc)(void*); |
| 752 | }; |
| 753 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 754 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 755 | |
| 756 | #include "SkCoreBlitters.h" |
| 757 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 758 | class SkAutoCallProc { |
| 759 | public: |
| 760 | typedef void (*Proc)(void*); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 761 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 762 | SkAutoCallProc(void* obj, Proc proc) |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 763 | : fObj(obj), fProc(proc) {} |
| 764 | |
| 765 | ~SkAutoCallProc() { |
| 766 | if (fObj && fProc) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 767 | fProc(fObj); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 768 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 769 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 770 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 771 | void* get() const { return fObj; } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 772 | |
| 773 | void* detach() { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 774 | void* obj = fObj; |
| 775 | fObj = NULL; |
| 776 | return obj; |
| 777 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 778 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 779 | private: |
| 780 | void* fObj; |
| 781 | Proc fProc; |
| 782 | }; |
commit-bot@chromium.org | e61a86c | 2013-11-18 16:03:59 +0000 | [diff] [blame] | 783 | #define SkAutoCallProc(...) SK_REQUIRE_LOCAL_VAR(SkAutoCallProc) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 784 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 785 | static void destroy_blitter(void* blitter) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 786 | ((SkBlitter*)blitter)->~SkBlitter(); |
| 787 | } |
| 788 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 789 | static void delete_blitter(void* blitter) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 790 | SkDELETE((SkBlitter*)blitter); |
| 791 | } |
| 792 | |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 793 | static bool just_solid_color(const SkPaint& paint) { |
| 794 | if (paint.getAlpha() == 0xFF && paint.getColorFilter() == NULL) { |
| 795 | SkShader* shader = paint.getShader(); |
| 796 | if (NULL == shader || |
| 797 | (shader->getFlags() & SkShader::kOpaqueAlpha_Flag)) { |
| 798 | return true; |
| 799 | } |
| 800 | } |
| 801 | return false; |
| 802 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 803 | |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 804 | /** By analyzing the paint (with an xfermode), we may decide we can take |
| 805 | special action. This enum lists our possible actions |
| 806 | */ |
| 807 | enum XferInterp { |
| 808 | kNormal_XferInterp, // no special interpretation, draw normally |
| 809 | kSrcOver_XferInterp, // draw as if in srcover mode |
| 810 | kSkipDrawing_XferInterp // draw nothing |
| 811 | }; |
| 812 | |
| 813 | static XferInterp interpret_xfermode(const SkPaint& paint, SkXfermode* xfer, |
| 814 | SkBitmap::Config deviceConfig) { |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 815 | SkXfermode::Mode mode; |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 816 | |
mike@reedtribe.org | be2aa2a | 2011-11-17 02:32:04 +0000 | [diff] [blame] | 817 | if (SkXfermode::AsMode(xfer, &mode)) { |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 818 | switch (mode) { |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 819 | case SkXfermode::kSrc_Mode: |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 820 | if (just_solid_color(paint)) { |
| 821 | return kSrcOver_XferInterp; |
| 822 | } |
| 823 | break; |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 824 | case SkXfermode::kDst_Mode: |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 825 | return kSkipDrawing_XferInterp; |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 826 | case SkXfermode::kSrcOver_Mode: |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 827 | return kSrcOver_XferInterp; |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 828 | case SkXfermode::kDstOver_Mode: |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 829 | if (SkBitmap::kRGB_565_Config == deviceConfig) { |
| 830 | return kSkipDrawing_XferInterp; |
| 831 | } |
| 832 | break; |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 833 | case SkXfermode::kSrcIn_Mode: |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 834 | if (SkBitmap::kRGB_565_Config == deviceConfig && |
| 835 | just_solid_color(paint)) { |
| 836 | return kSrcOver_XferInterp; |
| 837 | } |
| 838 | break; |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 839 | case SkXfermode::kDstIn_Mode: |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 840 | if (just_solid_color(paint)) { |
| 841 | return kSkipDrawing_XferInterp; |
| 842 | } |
| 843 | break; |
| 844 | default: |
| 845 | break; |
| 846 | } |
| 847 | } |
| 848 | return kNormal_XferInterp; |
| 849 | } |
| 850 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 851 | SkBlitter* SkBlitter::Choose(const SkBitmap& device, |
| 852 | const SkMatrix& matrix, |
reed@google.com | 6b7aee3 | 2011-04-19 18:36:09 +0000 | [diff] [blame] | 853 | const SkPaint& origPaint, |
reed@google.com | 126f7f5 | 2013-11-07 16:06:53 +0000 | [diff] [blame] | 854 | void* storage, size_t storageSize, |
| 855 | bool drawCoverage) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 856 | SkASSERT(storageSize == 0 || storage != NULL); |
| 857 | |
| 858 | SkBlitter* blitter = NULL; |
| 859 | |
| 860 | // which check, in case we're being called by a client with a dummy device |
| 861 | // (e.g. they have a bounder that always aborts the draw) |
reed@google.com | 126f7f5 | 2013-11-07 16:06:53 +0000 | [diff] [blame] | 862 | if (SkBitmap::kNo_Config == device.config() || |
| 863 | (drawCoverage && (SkBitmap::kA8_Config != device.config()))) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 864 | SK_PLACEMENT_NEW(blitter, SkNullBlitter, storage, storageSize); |
| 865 | return blitter; |
| 866 | } |
| 867 | |
reed@google.com | 4588490 | 2012-05-11 14:38:51 +0000 | [diff] [blame] | 868 | SkShader* shader = origPaint.getShader(); |
| 869 | SkColorFilter* cf = origPaint.getColorFilter(); |
| 870 | SkXfermode* mode = origPaint.getXfermode(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 871 | Sk3DShader* shader3D = NULL; |
reed@google.com | 4588490 | 2012-05-11 14:38:51 +0000 | [diff] [blame] | 872 | |
bsalomon@google.com | 5dc26b9 | 2012-10-11 19:32:32 +0000 | [diff] [blame] | 873 | SkTCopyOnFirstWrite<SkPaint> paint(origPaint); |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 874 | |
reed@google.com | 4588490 | 2012-05-11 14:38:51 +0000 | [diff] [blame] | 875 | if (origPaint.getMaskFilter() != NULL && |
| 876 | origPaint.getMaskFilter()->getFormat() == SkMask::k3D_Format) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 877 | shader3D = SkNEW_ARGS(Sk3DShader, (shader)); |
reed@google.com | 4588490 | 2012-05-11 14:38:51 +0000 | [diff] [blame] | 878 | // we know we haven't initialized lazyPaint yet, so just do it |
bsalomon@google.com | 5dc26b9 | 2012-10-11 19:32:32 +0000 | [diff] [blame] | 879 | paint.writable()->setShader(shader3D)->unref(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 880 | shader = shader3D; |
| 881 | } |
| 882 | |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 883 | if (NULL != mode) { |
reed@google.com | 4588490 | 2012-05-11 14:38:51 +0000 | [diff] [blame] | 884 | switch (interpret_xfermode(*paint, mode, device.config())) { |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 885 | case kSrcOver_XferInterp: |
| 886 | mode = NULL; |
bsalomon@google.com | 5dc26b9 | 2012-10-11 19:32:32 +0000 | [diff] [blame] | 887 | paint.writable()->setXfermode(NULL); |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 888 | break; |
| 889 | case kSkipDrawing_XferInterp: |
| 890 | SK_PLACEMENT_NEW(blitter, SkNullBlitter, storage, storageSize); |
| 891 | return blitter; |
| 892 | default: |
| 893 | break; |
| 894 | } |
| 895 | } |
| 896 | |
reed@google.com | 13201e7 | 2012-11-16 13:20:41 +0000 | [diff] [blame] | 897 | /* |
| 898 | * If the xfermode is CLEAR, then we can completely ignore the installed |
| 899 | * color/shader/colorfilter, and just pretend we're SRC + color==0. This |
| 900 | * will fall into our optimizations for SRC mode. |
| 901 | */ |
| 902 | if (SkXfermode::IsMode(mode, SkXfermode::kClear_Mode)) { |
| 903 | SkPaint* p = paint.writable(); |
| 904 | shader = p->setShader(NULL); |
| 905 | cf = p->setColorFilter(NULL); |
| 906 | mode = p->setXfermodeMode(SkXfermode::kSrc_Mode); |
| 907 | p->setColor(0); |
| 908 | } |
reed@google.com | 13201e7 | 2012-11-16 13:20:41 +0000 | [diff] [blame] | 909 | |
reed@google.com | 6b7aee3 | 2011-04-19 18:36:09 +0000 | [diff] [blame] | 910 | if (NULL == shader) { |
reed@google.com | 6b7aee3 | 2011-04-19 18:36:09 +0000 | [diff] [blame] | 911 | if (mode) { |
reed@google.com | 6b7aee3 | 2011-04-19 18:36:09 +0000 | [diff] [blame] | 912 | // xfermodes (and filters) require shaders for our current blitters |
| 913 | shader = SkNEW(SkColorShader); |
bsalomon@google.com | 5dc26b9 | 2012-10-11 19:32:32 +0000 | [diff] [blame] | 914 | paint.writable()->setShader(shader)->unref(); |
reed@google.com | 6b7aee3 | 2011-04-19 18:36:09 +0000 | [diff] [blame] | 915 | } else if (cf) { |
| 916 | // if no shader && no xfermode, we just apply the colorfilter to |
| 917 | // our color and move on. |
bsalomon@google.com | 5dc26b9 | 2012-10-11 19:32:32 +0000 | [diff] [blame] | 918 | SkPaint* writablePaint = paint.writable(); |
| 919 | writablePaint->setColor(cf->filterColor(paint->getColor())); |
| 920 | writablePaint->setColorFilter(NULL); |
reed@google.com | 6b7aee3 | 2011-04-19 18:36:09 +0000 | [diff] [blame] | 921 | cf = NULL; |
| 922 | } |
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 | |
reed@google.com | 6b7aee3 | 2011-04-19 18:36:09 +0000 | [diff] [blame] | 925 | if (cf) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 926 | SkASSERT(shader); |
reed@google.com | 6b7aee3 | 2011-04-19 18:36:09 +0000 | [diff] [blame] | 927 | shader = SkNEW_ARGS(SkFilterShader, (shader, cf)); |
bsalomon@google.com | 5dc26b9 | 2012-10-11 19:32:32 +0000 | [diff] [blame] | 928 | paint.writable()->setShader(shader)->unref(); |
reed@android.com | 1fc4c60 | 2009-10-02 16:34:57 +0000 | [diff] [blame] | 929 | // blitters should ignore the presence/absence of a filter, since |
| 930 | // if there is one, the shader will take care of it. |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 931 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 932 | |
reed@google.com | a641f3f | 2012-12-13 22:16:30 +0000 | [diff] [blame] | 933 | /* |
| 934 | * We need to have balanced calls to the shader: |
| 935 | * setContext |
| 936 | * endContext |
| 937 | * We make the first call here, in case it fails we can abort the draw. |
| 938 | * The endContext() call is made by the blitter (assuming setContext did |
| 939 | * not fail) in its destructor. |
| 940 | */ |
reed@google.com | 4588490 | 2012-05-11 14:38:51 +0000 | [diff] [blame] | 941 | if (shader && !shader->setContext(device, *paint, matrix)) { |
reed@google.com | a641f3f | 2012-12-13 22:16:30 +0000 | [diff] [blame] | 942 | SK_PLACEMENT_NEW(blitter, SkNullBlitter, storage, storageSize); |
| 943 | return blitter; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 944 | } |
| 945 | |
skia.committer@gmail.com | ab7442c | 2013-11-08 07:01:56 +0000 | [diff] [blame] | 946 | |
reed@google.com | 4469938 | 2013-10-31 17:28:30 +0000 | [diff] [blame] | 947 | switch (device.config()) { |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 948 | case SkBitmap::kA8_Config: |
reed@google.com | 126f7f5 | 2013-11-07 16:06:53 +0000 | [diff] [blame] | 949 | if (drawCoverage) { |
| 950 | SkASSERT(NULL == shader); |
| 951 | SkASSERT(NULL == paint->getXfermode()); |
| 952 | SK_PLACEMENT_NEW_ARGS(blitter, SkA8_Coverage_Blitter, |
| 953 | storage, storageSize, (device, *paint)); |
| 954 | } else if (shader) { |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 955 | SK_PLACEMENT_NEW_ARGS(blitter, SkA8_Shader_Blitter, |
reed@google.com | 4588490 | 2012-05-11 14:38:51 +0000 | [diff] [blame] | 956 | storage, storageSize, (device, *paint)); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 957 | } else { |
| 958 | SK_PLACEMENT_NEW_ARGS(blitter, SkA8_Blitter, |
reed@google.com | 4588490 | 2012-05-11 14:38:51 +0000 | [diff] [blame] | 959 | storage, storageSize, (device, *paint)); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 960 | } |
| 961 | break; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 962 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 963 | case SkBitmap::kRGB_565_Config: |
reed@google.com | 4588490 | 2012-05-11 14:38:51 +0000 | [diff] [blame] | 964 | blitter = SkBlitter_ChooseD565(device, *paint, storage, storageSize); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 965 | break; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 966 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 967 | case SkBitmap::kARGB_8888_Config: |
| 968 | if (shader) { |
| 969 | SK_PLACEMENT_NEW_ARGS(blitter, SkARGB32_Shader_Blitter, |
reed@google.com | 4588490 | 2012-05-11 14:38:51 +0000 | [diff] [blame] | 970 | storage, storageSize, (device, *paint)); |
| 971 | } else if (paint->getColor() == SK_ColorBLACK) { |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 972 | SK_PLACEMENT_NEW_ARGS(blitter, SkARGB32_Black_Blitter, |
reed@google.com | 4588490 | 2012-05-11 14:38:51 +0000 | [diff] [blame] | 973 | storage, storageSize, (device, *paint)); |
| 974 | } else if (paint->getAlpha() == 0xFF) { |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 975 | SK_PLACEMENT_NEW_ARGS(blitter, SkARGB32_Opaque_Blitter, |
reed@google.com | 4588490 | 2012-05-11 14:38:51 +0000 | [diff] [blame] | 976 | storage, storageSize, (device, *paint)); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 977 | } else { |
| 978 | SK_PLACEMENT_NEW_ARGS(blitter, SkARGB32_Blitter, |
reed@google.com | 4588490 | 2012-05-11 14:38:51 +0000 | [diff] [blame] | 979 | storage, storageSize, (device, *paint)); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 980 | } |
| 981 | break; |
| 982 | |
| 983 | default: |
tomhudson@google.com | 0c00f21 | 2011-12-28 14:59:50 +0000 | [diff] [blame] | 984 | SkDEBUGFAIL("unsupported device config"); |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 985 | SK_PLACEMENT_NEW(blitter, SkNullBlitter, storage, storageSize); |
| 986 | break; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 987 | } |
| 988 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 989 | if (shader3D) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 990 | void (*proc)(void*) = ((void*)storage == (void*)blitter) ? destroy_blitter : delete_blitter; |
| 991 | SkAutoCallProc tmp(blitter, proc); |
| 992 | |
| 993 | blitter = SkNEW_ARGS(Sk3DBlitter, (blitter, shader3D, proc)); |
| 994 | (void)tmp.detach(); |
| 995 | } |
| 996 | return blitter; |
| 997 | } |
| 998 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 999 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1000 | |
| 1001 | const uint16_t gMask_0F0F = 0xF0F; |
| 1002 | const uint32_t gMask_00FF00FF = 0xFF00FF; |
| 1003 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 1004 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1005 | |
| 1006 | SkShaderBlitter::SkShaderBlitter(const SkBitmap& device, const SkPaint& paint) |
reed@android.com | 5119bdb | 2009-06-12 21:27:03 +0000 | [diff] [blame] | 1007 | : INHERITED(device) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1008 | fShader = paint.getShader(); |
| 1009 | SkASSERT(fShader); |
reed@google.com | a641f3f | 2012-12-13 22:16:30 +0000 | [diff] [blame] | 1010 | SkASSERT(fShader->setContextHasBeenCalled()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1011 | |
| 1012 | fShader->ref(); |
reed@android.com | 5119bdb | 2009-06-12 21:27:03 +0000 | [diff] [blame] | 1013 | fShaderFlags = fShader->getFlags(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1014 | } |
| 1015 | |
reed@android.com | 5119bdb | 2009-06-12 21:27:03 +0000 | [diff] [blame] | 1016 | SkShaderBlitter::~SkShaderBlitter() { |
reed@google.com | a641f3f | 2012-12-13 22:16:30 +0000 | [diff] [blame] | 1017 | SkASSERT(fShader->setContextHasBeenCalled()); |
| 1018 | fShader->endContext(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1019 | fShader->unref(); |
| 1020 | } |