epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2006 The Android Open Source Project |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
bungeman | 903dcb0 | 2015-03-16 13:00:09 -0400 | [diff] [blame] | 7 | #define __STDC_LIMIT_MACROS |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 8 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 9 | #include "SkDraw.h" |
| 10 | #include "SkBlitter.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 11 | #include "SkCanvas.h" |
| 12 | #include "SkColorPriv.h" |
| 13 | #include "SkDevice.h" |
reed@google.com | 1c028bd | 2013-08-28 15:23:19 +0000 | [diff] [blame] | 14 | #include "SkDeviceLooper.h" |
herb | e5911c9 | 2015-11-09 13:15:21 -0800 | [diff] [blame] | 15 | #include "SkFindAndPlaceGlyph.h" |
bungeman@google.com | 2211b62 | 2012-01-13 15:02:58 +0000 | [diff] [blame] | 16 | #include "SkFixed.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 17 | #include "SkMaskFilter.h" |
herb | f553e4e | 2015-11-09 08:51:56 -0800 | [diff] [blame] | 18 | #include "SkMatrix.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 19 | #include "SkPaint.h" |
| 20 | #include "SkPathEffect.h" |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 21 | #include "SkRasterClip.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 22 | #include "SkRasterizer.h" |
scroggo@google.com | a8e33a9 | 2013-11-08 18:02:53 +0000 | [diff] [blame] | 23 | #include "SkRRect.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 24 | #include "SkScan.h" |
| 25 | #include "SkShader.h" |
commit-bot@chromium.org | a5572e5 | 2014-03-07 03:24:41 +0000 | [diff] [blame] | 26 | #include "SkSmallAllocator.h" |
robertphillips@google.com | 76f9e93 | 2013-01-15 20:17:47 +0000 | [diff] [blame] | 27 | #include "SkString.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 28 | #include "SkStroke.h" |
halcanary | 435657f | 2015-09-15 12:53:07 -0700 | [diff] [blame] | 29 | #include "SkStrokeRec.h" |
herb | f553e4e | 2015-11-09 08:51:56 -0800 | [diff] [blame] | 30 | #include "SkTemplates.h" |
kkinnunen | cb9a2c8 | 2014-06-12 23:06:28 -0700 | [diff] [blame] | 31 | #include "SkTextMapStateProc.h" |
reed@google.com | 32e5d97 | 2011-07-27 18:25:57 +0000 | [diff] [blame] | 32 | #include "SkTLazy.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 33 | #include "SkUtils.h" |
commit-bot@chromium.org | 559a883 | 2014-05-30 10:08:22 +0000 | [diff] [blame] | 34 | #include "SkVertState.h" |
reed | cfb6bdf | 2016-03-29 11:32:50 -0700 | [diff] [blame] | 35 | #include "SkXfermode.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 36 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 37 | #include "SkBitmapProcShader.h" |
| 38 | #include "SkDrawProcs.h" |
reed@google.com | ae57358 | 2013-01-03 15:22:40 +0000 | [diff] [blame] | 39 | #include "SkMatrixUtils.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 40 | |
| 41 | //#define TRACE_BITMAP_DRAWS |
| 42 | |
herb | d4c24f6 | 2015-12-07 12:12:29 -0800 | [diff] [blame] | 43 | // Helper function to fix code gen bug on ARM64. |
| 44 | // See SkFindAndPlaceGlyph.h for more details. |
| 45 | void FixGCC49Arm64Bug(int v) { } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 46 | |
reed@google.com | fd4236e | 2011-07-25 21:16:22 +0000 | [diff] [blame] | 47 | /** Helper for allocating small blitters on the stack. |
| 48 | */ |
reed@google.com | 40c2ba2 | 2011-07-25 19:41:22 +0000 | [diff] [blame] | 49 | class SkAutoBlitterChoose : SkNoncopyable { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 50 | public: |
reed@google.com | 1d6ee0b | 2011-07-05 17:44:56 +0000 | [diff] [blame] | 51 | SkAutoBlitterChoose() { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 52 | fBlitter = nullptr; |
reed@google.com | 1d6ee0b | 2011-07-05 17:44:56 +0000 | [diff] [blame] | 53 | } |
reed | 41e010c | 2015-06-09 12:16:53 -0700 | [diff] [blame] | 54 | SkAutoBlitterChoose(const SkPixmap& dst, const SkMatrix& matrix, |
reed@google.com | 126f7f5 | 2013-11-07 16:06:53 +0000 | [diff] [blame] | 55 | const SkPaint& paint, bool drawCoverage = false) { |
reed | 41e010c | 2015-06-09 12:16:53 -0700 | [diff] [blame] | 56 | fBlitter = SkBlitter::Choose(dst, matrix, paint, &fAllocator, drawCoverage); |
commit-bot@chromium.org | e61a86c | 2013-11-18 16:03:59 +0000 | [diff] [blame] | 57 | } |
herb | e59124e | 2015-11-18 10:54:39 -0800 | [diff] [blame] | 58 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 59 | SkBlitter* operator->() { return fBlitter; } |
| 60 | SkBlitter* get() const { return fBlitter; } |
| 61 | |
reed | 41e010c | 2015-06-09 12:16:53 -0700 | [diff] [blame] | 62 | void choose(const SkPixmap& dst, const SkMatrix& matrix, |
krajcevski | 53f0959 | 2014-08-06 11:12:14 -0700 | [diff] [blame] | 63 | const SkPaint& paint, bool drawCoverage = false) { |
reed@google.com | 1d6ee0b | 2011-07-05 17:44:56 +0000 | [diff] [blame] | 64 | SkASSERT(!fBlitter); |
reed | 41e010c | 2015-06-09 12:16:53 -0700 | [diff] [blame] | 65 | fBlitter = SkBlitter::Choose(dst, matrix, paint, &fAllocator, drawCoverage); |
reed@google.com | 1d6ee0b | 2011-07-05 17:44:56 +0000 | [diff] [blame] | 66 | } |
| 67 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 68 | private: |
commit-bot@chromium.org | a5572e5 | 2014-03-07 03:24:41 +0000 | [diff] [blame] | 69 | // Owned by fAllocator, which will handle the delete. |
| 70 | SkBlitter* fBlitter; |
| 71 | SkTBlitterAllocator fAllocator; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 72 | }; |
commit-bot@chromium.org | e61a86c | 2013-11-18 16:03:59 +0000 | [diff] [blame] | 73 | #define SkAutoBlitterChoose(...) SK_REQUIRE_LOCAL_VAR(SkAutoBlitterChoose) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 74 | |
reed@google.com | 40c2ba2 | 2011-07-25 19:41:22 +0000 | [diff] [blame] | 75 | /** |
| 76 | * Since we are providing the storage for the shader (to avoid the perf cost |
| 77 | * of calling new) we insist that in our destructor we can account for all |
| 78 | * owners of the shader. |
| 79 | */ |
| 80 | class SkAutoBitmapShaderInstall : SkNoncopyable { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 81 | public: |
commit-bot@chromium.org | 9c9005a | 2014-04-28 14:55:39 +0000 | [diff] [blame] | 82 | SkAutoBitmapShaderInstall(const SkBitmap& src, const SkPaint& paint, |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 83 | const SkMatrix* localMatrix = nullptr) |
reed@google.com | 40c2ba2 | 2011-07-25 19:41:22 +0000 | [diff] [blame] | 84 | : fPaint(paint) /* makes a copy of the paint */ { |
reed | 8a21c9f | 2016-03-08 18:50:00 -0800 | [diff] [blame] | 85 | fPaint.setShader(SkMakeBitmapShader(src, SkShader::kClamp_TileMode, |
| 86 | SkShader::kClamp_TileMode, localMatrix, &fAllocator)); |
reed@google.com | 40c2ba2 | 2011-07-25 19:41:22 +0000 | [diff] [blame] | 87 | // we deliberately left the shader with an owner-count of 2 |
reed | 8a21c9f | 2016-03-08 18:50:00 -0800 | [diff] [blame] | 88 | fPaint.getShader()->ref(); |
reed@google.com | 40c2ba2 | 2011-07-25 19:41:22 +0000 | [diff] [blame] | 89 | SkASSERT(2 == fPaint.getShader()->getRefCnt()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 90 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 91 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 92 | ~SkAutoBitmapShaderInstall() { |
commit-bot@chromium.org | a5572e5 | 2014-03-07 03:24:41 +0000 | [diff] [blame] | 93 | // since fAllocator will destroy shader, we insist that owners == 2 |
| 94 | SkASSERT(2 == fPaint.getShader()->getRefCnt()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 95 | |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 96 | fPaint.setShader(nullptr); // unref the shader by 1 |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 97 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 98 | } |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 99 | |
reed@google.com | 40c2ba2 | 2011-07-25 19:41:22 +0000 | [diff] [blame] | 100 | // return the new paint that has the shader applied |
| 101 | const SkPaint& paintWithShader() const { return fPaint; } |
| 102 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 103 | private: |
commit-bot@chromium.org | a5572e5 | 2014-03-07 03:24:41 +0000 | [diff] [blame] | 104 | // copy of caller's paint (which we then modify) |
| 105 | SkPaint fPaint; |
| 106 | // Stores the shader. |
| 107 | SkTBlitterAllocator fAllocator; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 108 | }; |
commit-bot@chromium.org | e61a86c | 2013-11-18 16:03:59 +0000 | [diff] [blame] | 109 | #define SkAutoBitmapShaderInstall(...) SK_REQUIRE_LOCAL_VAR(SkAutoBitmapShaderInstall) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 110 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 111 | /////////////////////////////////////////////////////////////////////////////// |
| 112 | |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 113 | SkDraw::SkDraw() { |
| 114 | sk_bzero(this, sizeof(*this)); |
| 115 | } |
| 116 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 117 | SkDraw::SkDraw(const SkDraw& src) { |
| 118 | memcpy(this, &src, sizeof(*this)); |
| 119 | } |
| 120 | |
reed@google.com | 4bbdeac | 2013-01-24 21:03:11 +0000 | [diff] [blame] | 121 | bool SkDraw::computeConservativeLocalClipBounds(SkRect* localBounds) const { |
| 122 | if (fRC->isEmpty()) { |
| 123 | return false; |
| 124 | } |
| 125 | |
| 126 | SkMatrix inverse; |
| 127 | if (!fMatrix->invert(&inverse)) { |
| 128 | return false; |
| 129 | } |
| 130 | |
| 131 | SkIRect devBounds = fRC->getBounds(); |
| 132 | // outset to have slop for antialasing and hairlines |
| 133 | devBounds.outset(1, 1); |
| 134 | inverse.mapRect(localBounds, SkRect::Make(devBounds)); |
| 135 | return true; |
| 136 | } |
| 137 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 138 | /////////////////////////////////////////////////////////////////////////////// |
| 139 | |
| 140 | typedef void (*BitmapXferProc)(void* pixels, size_t bytes, uint32_t data); |
| 141 | |
| 142 | static void D_Clear_BitmapXferProc(void* pixels, size_t bytes, uint32_t) { |
reed@android.com | 4516f47 | 2009-06-29 16:25:36 +0000 | [diff] [blame] | 143 | sk_bzero(pixels, bytes); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 144 | } |
| 145 | |
| 146 | static void D_Dst_BitmapXferProc(void*, size_t, uint32_t data) {} |
| 147 | |
| 148 | static void D32_Src_BitmapXferProc(void* pixels, size_t bytes, uint32_t data) { |
commit-bot@chromium.org | a8c7f77 | 2014-01-24 21:46:29 +0000 | [diff] [blame] | 149 | sk_memset32((uint32_t*)pixels, data, SkToInt(bytes >> 2)); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 150 | } |
| 151 | |
| 152 | static void D16_Src_BitmapXferProc(void* pixels, size_t bytes, uint32_t data) { |
commit-bot@chromium.org | a8c7f77 | 2014-01-24 21:46:29 +0000 | [diff] [blame] | 153 | sk_memset16((uint16_t*)pixels, data, SkToInt(bytes >> 1)); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 154 | } |
| 155 | |
| 156 | static void DA8_Src_BitmapXferProc(void* pixels, size_t bytes, uint32_t data) { |
| 157 | memset(pixels, data, bytes); |
| 158 | } |
| 159 | |
reed | 41e010c | 2015-06-09 12:16:53 -0700 | [diff] [blame] | 160 | static BitmapXferProc ChooseBitmapXferProc(const SkPixmap& dst, const SkPaint& paint, |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 161 | uint32_t* data) { |
| 162 | // todo: we can apply colorfilter up front if no shader, so we wouldn't |
| 163 | // need to abort this fastpath |
| 164 | if (paint.getShader() || paint.getColorFilter()) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 165 | return nullptr; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 166 | } |
| 167 | |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 168 | SkXfermode::Mode mode; |
mike@reedtribe.org | be2aa2a | 2011-11-17 02:32:04 +0000 | [diff] [blame] | 169 | if (!SkXfermode::AsMode(paint.getXfermode(), &mode)) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 170 | return nullptr; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 171 | } |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 172 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 173 | SkColor color = paint.getColor(); |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 174 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 175 | // collaps modes based on color... |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 176 | if (SkXfermode::kSrcOver_Mode == mode) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 177 | unsigned alpha = SkColorGetA(color); |
| 178 | if (0 == alpha) { |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 179 | mode = SkXfermode::kDst_Mode; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 180 | } else if (0xFF == alpha) { |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 181 | mode = SkXfermode::kSrc_Mode; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 182 | } |
| 183 | } |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 184 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 185 | switch (mode) { |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 186 | case SkXfermode::kClear_Mode: |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 187 | // SkDebugf("--- D_Clear_BitmapXferProc\n"); |
| 188 | return D_Clear_BitmapXferProc; // ignore data |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 189 | case SkXfermode::kDst_Mode: |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 190 | // SkDebugf("--- D_Dst_BitmapXferProc\n"); |
| 191 | return D_Dst_BitmapXferProc; // ignore data |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 192 | case SkXfermode::kSrc_Mode: { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 193 | /* |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 194 | should I worry about dithering for the lower depths? |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 195 | */ |
| 196 | SkPMColor pmc = SkPreMultiplyColor(color); |
reed | 41e010c | 2015-06-09 12:16:53 -0700 | [diff] [blame] | 197 | switch (dst.colorType()) { |
commit-bot@chromium.org | 28fcae2 | 2014-04-11 17:15:40 +0000 | [diff] [blame] | 198 | case kN32_SkColorType: |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 199 | if (data) { |
| 200 | *data = pmc; |
| 201 | } |
| 202 | // SkDebugf("--- D32_Src_BitmapXferProc\n"); |
| 203 | return D32_Src_BitmapXferProc; |
reed@google.com | 900ecf2 | 2014-02-20 20:55:37 +0000 | [diff] [blame] | 204 | case kRGB_565_SkColorType: |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 205 | if (data) { |
| 206 | *data = SkPixel32ToPixel16(pmc); |
| 207 | } |
| 208 | // SkDebugf("--- D16_Src_BitmapXferProc\n"); |
| 209 | return D16_Src_BitmapXferProc; |
reed@google.com | 900ecf2 | 2014-02-20 20:55:37 +0000 | [diff] [blame] | 210 | case kAlpha_8_SkColorType: |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 211 | if (data) { |
| 212 | *data = SkGetPackedA32(pmc); |
| 213 | } |
| 214 | // SkDebugf("--- DA8_Src_BitmapXferProc\n"); |
| 215 | return DA8_Src_BitmapXferProc; |
| 216 | default: |
| 217 | break; |
| 218 | } |
| 219 | break; |
| 220 | } |
| 221 | default: |
| 222 | break; |
| 223 | } |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 224 | return nullptr; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 225 | } |
| 226 | |
reed | 41e010c | 2015-06-09 12:16:53 -0700 | [diff] [blame] | 227 | static void CallBitmapXferProc(const SkPixmap& dst, const SkIRect& rect, BitmapXferProc proc, |
| 228 | uint32_t procData) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 229 | int shiftPerPixel; |
reed | 41e010c | 2015-06-09 12:16:53 -0700 | [diff] [blame] | 230 | switch (dst.colorType()) { |
commit-bot@chromium.org | 28fcae2 | 2014-04-11 17:15:40 +0000 | [diff] [blame] | 231 | case kN32_SkColorType: |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 232 | shiftPerPixel = 2; |
| 233 | break; |
reed@google.com | 900ecf2 | 2014-02-20 20:55:37 +0000 | [diff] [blame] | 234 | case kRGB_565_SkColorType: |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 235 | shiftPerPixel = 1; |
| 236 | break; |
reed@google.com | 900ecf2 | 2014-02-20 20:55:37 +0000 | [diff] [blame] | 237 | case kAlpha_8_SkColorType: |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 238 | shiftPerPixel = 0; |
| 239 | break; |
| 240 | default: |
tomhudson@google.com | 0c00f21 | 2011-12-28 14:59:50 +0000 | [diff] [blame] | 241 | SkDEBUGFAIL("Can't use xferproc on this config"); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 242 | return; |
| 243 | } |
| 244 | |
reed | 41e010c | 2015-06-09 12:16:53 -0700 | [diff] [blame] | 245 | uint8_t* pixels = (uint8_t*)dst.writable_addr(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 246 | SkASSERT(pixels); |
reed | 41e010c | 2015-06-09 12:16:53 -0700 | [diff] [blame] | 247 | const size_t rowBytes = dst.rowBytes(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 248 | const int widthBytes = rect.width() << shiftPerPixel; |
| 249 | |
| 250 | // skip down to the first scanline and X position |
| 251 | pixels += rect.fTop * rowBytes + (rect.fLeft << shiftPerPixel); |
| 252 | for (int scans = rect.height() - 1; scans >= 0; --scans) { |
| 253 | proc(pixels, widthBytes, procData); |
| 254 | pixels += rowBytes; |
| 255 | } |
| 256 | } |
| 257 | |
| 258 | void SkDraw::drawPaint(const SkPaint& paint) const { |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 259 | SkDEBUGCODE(this->validate();) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 260 | |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 261 | if (fRC->isEmpty()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 262 | return; |
| 263 | } |
| 264 | |
| 265 | SkIRect devRect; |
reed | 41e010c | 2015-06-09 12:16:53 -0700 | [diff] [blame] | 266 | devRect.set(0, 0, fDst.width(), fDst.height()); |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 267 | |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 268 | if (fRC->isBW()) { |
| 269 | /* If we don't have a shader (i.e. we're just a solid color) we may |
| 270 | be faster to operate directly on the device bitmap, rather than invoking |
| 271 | a blitter. Esp. true for xfermodes, which require a colorshader to be |
| 272 | present, which is just redundant work. Since we're drawing everywhere |
| 273 | in the clip, we don't have to worry about antialiasing. |
| 274 | */ |
| 275 | uint32_t procData = 0; // to avoid the warning |
reed | 41e010c | 2015-06-09 12:16:53 -0700 | [diff] [blame] | 276 | BitmapXferProc proc = ChooseBitmapXferProc(fDst, paint, &procData); |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 277 | if (proc) { |
| 278 | if (D_Dst_BitmapXferProc == proc) { // nothing to do |
| 279 | return; |
| 280 | } |
| 281 | |
| 282 | SkRegion::Iterator iter(fRC->bwRgn()); |
| 283 | while (!iter.done()) { |
reed | 41e010c | 2015-06-09 12:16:53 -0700 | [diff] [blame] | 284 | CallBitmapXferProc(fDst, iter.rect(), proc, procData); |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 285 | iter.next(); |
| 286 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 287 | return; |
| 288 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 289 | } |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 290 | |
| 291 | // normal case: use a blitter |
reed | 41e010c | 2015-06-09 12:16:53 -0700 | [diff] [blame] | 292 | SkAutoBlitterChoose blitter(fDst, *fMatrix, paint); |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 293 | SkScan::FillIRect(devRect, *fRC, blitter.get()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 294 | } |
| 295 | |
| 296 | /////////////////////////////////////////////////////////////////////////////// |
| 297 | |
| 298 | struct PtProcRec { |
| 299 | SkCanvas::PointMode fMode; |
| 300 | const SkPaint* fPaint; |
| 301 | const SkRegion* fClip; |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 302 | const SkRasterClip* fRC; |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 303 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 304 | // computed values |
| 305 | SkFixed fRadius; |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 306 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 307 | typedef void (*Proc)(const PtProcRec&, const SkPoint devPts[], int count, |
| 308 | SkBlitter*); |
| 309 | |
| 310 | bool init(SkCanvas::PointMode, const SkPaint&, const SkMatrix* matrix, |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 311 | const SkRasterClip*); |
| 312 | Proc chooseProc(SkBlitter** blitter); |
| 313 | |
| 314 | private: |
| 315 | SkAAClipBlitterWrapper fWrapper; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 316 | }; |
| 317 | |
| 318 | static void bw_pt_rect_hair_proc(const PtProcRec& rec, const SkPoint devPts[], |
| 319 | int count, SkBlitter* blitter) { |
| 320 | SkASSERT(rec.fClip->isRect()); |
| 321 | const SkIRect& r = rec.fClip->getBounds(); |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 322 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 323 | for (int i = 0; i < count; i++) { |
reed@google.com | 2d47a21 | 2012-11-29 21:01:00 +0000 | [diff] [blame] | 324 | int x = SkScalarFloorToInt(devPts[i].fX); |
| 325 | int y = SkScalarFloorToInt(devPts[i].fY); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 326 | if (r.contains(x, y)) { |
| 327 | blitter->blitH(x, y, 1); |
| 328 | } |
| 329 | } |
| 330 | } |
| 331 | |
| 332 | static void bw_pt_rect_16_hair_proc(const PtProcRec& rec, |
| 333 | const SkPoint devPts[], int count, |
| 334 | SkBlitter* blitter) { |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 335 | SkASSERT(rec.fRC->isRect()); |
| 336 | const SkIRect& r = rec.fRC->getBounds(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 337 | uint32_t value; |
reed | 41e010c | 2015-06-09 12:16:53 -0700 | [diff] [blame] | 338 | const SkPixmap* dst = blitter->justAnOpaqueColor(&value); |
| 339 | SkASSERT(dst); |
skia.committer@gmail.com | c3d7d90 | 2012-11-30 02:01:24 +0000 | [diff] [blame] | 340 | |
reed | 41e010c | 2015-06-09 12:16:53 -0700 | [diff] [blame] | 341 | uint16_t* addr = dst->writable_addr16(0, 0); |
| 342 | size_t rb = dst->rowBytes(); |
skia.committer@gmail.com | c3d7d90 | 2012-11-30 02:01:24 +0000 | [diff] [blame] | 343 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 344 | for (int i = 0; i < count; i++) { |
reed@google.com | 2d47a21 | 2012-11-29 21:01:00 +0000 | [diff] [blame] | 345 | int x = SkScalarFloorToInt(devPts[i].fX); |
| 346 | int y = SkScalarFloorToInt(devPts[i].fY); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 347 | if (r.contains(x, y)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 348 | ((uint16_t*)((char*)addr + y * rb))[x] = SkToU16(value); |
| 349 | } |
| 350 | } |
| 351 | } |
| 352 | |
reed@google.com | 2d47a21 | 2012-11-29 21:01:00 +0000 | [diff] [blame] | 353 | static void bw_pt_rect_32_hair_proc(const PtProcRec& rec, |
| 354 | const SkPoint devPts[], int count, |
| 355 | SkBlitter* blitter) { |
| 356 | SkASSERT(rec.fRC->isRect()); |
| 357 | const SkIRect& r = rec.fRC->getBounds(); |
| 358 | uint32_t value; |
reed | 41e010c | 2015-06-09 12:16:53 -0700 | [diff] [blame] | 359 | const SkPixmap* dst = blitter->justAnOpaqueColor(&value); |
| 360 | SkASSERT(dst); |
skia.committer@gmail.com | c3d7d90 | 2012-11-30 02:01:24 +0000 | [diff] [blame] | 361 | |
reed | 41e010c | 2015-06-09 12:16:53 -0700 | [diff] [blame] | 362 | SkPMColor* addr = dst->writable_addr32(0, 0); |
| 363 | size_t rb = dst->rowBytes(); |
skia.committer@gmail.com | c3d7d90 | 2012-11-30 02:01:24 +0000 | [diff] [blame] | 364 | |
reed@google.com | 2d47a21 | 2012-11-29 21:01:00 +0000 | [diff] [blame] | 365 | for (int i = 0; i < count; i++) { |
| 366 | int x = SkScalarFloorToInt(devPts[i].fX); |
| 367 | int y = SkScalarFloorToInt(devPts[i].fY); |
| 368 | if (r.contains(x, y)) { |
| 369 | ((SkPMColor*)((char*)addr + y * rb))[x] = value; |
| 370 | } |
| 371 | } |
| 372 | } |
| 373 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 374 | static void bw_pt_hair_proc(const PtProcRec& rec, const SkPoint devPts[], |
| 375 | int count, SkBlitter* blitter) { |
| 376 | for (int i = 0; i < count; i++) { |
reed@google.com | e1ca705 | 2013-12-17 19:22:07 +0000 | [diff] [blame] | 377 | int x = SkScalarFloorToInt(devPts[i].fX); |
| 378 | int y = SkScalarFloorToInt(devPts[i].fY); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 379 | if (rec.fClip->contains(x, y)) { |
| 380 | blitter->blitH(x, y, 1); |
| 381 | } |
| 382 | } |
| 383 | } |
| 384 | |
| 385 | static void bw_line_hair_proc(const PtProcRec& rec, const SkPoint devPts[], |
| 386 | int count, SkBlitter* blitter) { |
| 387 | for (int i = 0; i < count; i += 2) { |
reed | 5dc6b7d | 2015-04-14 10:40:44 -0700 | [diff] [blame] | 388 | SkScan::HairLine(&devPts[i], 2, *rec.fRC, blitter); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 389 | } |
| 390 | } |
| 391 | |
| 392 | static void bw_poly_hair_proc(const PtProcRec& rec, const SkPoint devPts[], |
| 393 | int count, SkBlitter* blitter) { |
reed | 5dc6b7d | 2015-04-14 10:40:44 -0700 | [diff] [blame] | 394 | SkScan::HairLine(devPts, count, *rec.fRC, blitter); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 395 | } |
| 396 | |
| 397 | // aa versions |
| 398 | |
| 399 | static void aa_line_hair_proc(const PtProcRec& rec, const SkPoint devPts[], |
| 400 | int count, SkBlitter* blitter) { |
| 401 | for (int i = 0; i < count; i += 2) { |
reed | 5dc6b7d | 2015-04-14 10:40:44 -0700 | [diff] [blame] | 402 | SkScan::AntiHairLine(&devPts[i], 2, *rec.fRC, blitter); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 403 | } |
| 404 | } |
| 405 | |
| 406 | static void aa_poly_hair_proc(const PtProcRec& rec, const SkPoint devPts[], |
| 407 | int count, SkBlitter* blitter) { |
reed | 5dc6b7d | 2015-04-14 10:40:44 -0700 | [diff] [blame] | 408 | SkScan::AntiHairLine(devPts, count, *rec.fRC, blitter); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 409 | } |
| 410 | |
| 411 | // square procs (strokeWidth > 0 but matrix is square-scale (sx == sy) |
| 412 | |
| 413 | static void bw_square_proc(const PtProcRec& rec, const SkPoint devPts[], |
| 414 | int count, SkBlitter* blitter) { |
| 415 | const SkFixed radius = rec.fRadius; |
| 416 | for (int i = 0; i < count; i++) { |
| 417 | SkFixed x = SkScalarToFixed(devPts[i].fX); |
| 418 | SkFixed y = SkScalarToFixed(devPts[i].fY); |
skia.committer@gmail.com | c3d7d90 | 2012-11-30 02:01:24 +0000 | [diff] [blame] | 419 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 420 | SkXRect r; |
| 421 | r.fLeft = x - radius; |
| 422 | r.fTop = y - radius; |
| 423 | r.fRight = x + radius; |
| 424 | r.fBottom = y + radius; |
skia.committer@gmail.com | c3d7d90 | 2012-11-30 02:01:24 +0000 | [diff] [blame] | 425 | |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 426 | SkScan::FillXRect(r, *rec.fRC, blitter); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 427 | } |
| 428 | } |
| 429 | |
| 430 | static void aa_square_proc(const PtProcRec& rec, const SkPoint devPts[], |
| 431 | int count, SkBlitter* blitter) { |
| 432 | const SkFixed radius = rec.fRadius; |
| 433 | for (int i = 0; i < count; i++) { |
| 434 | SkFixed x = SkScalarToFixed(devPts[i].fX); |
| 435 | SkFixed y = SkScalarToFixed(devPts[i].fY); |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 436 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 437 | SkXRect r; |
| 438 | r.fLeft = x - radius; |
| 439 | r.fTop = y - radius; |
| 440 | r.fRight = x + radius; |
| 441 | r.fBottom = y + radius; |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 442 | |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 443 | SkScan::AntiFillXRect(r, *rec.fRC, blitter); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 444 | } |
| 445 | } |
| 446 | |
reed@android.com | b4f404a | 2009-07-10 17:02:17 +0000 | [diff] [blame] | 447 | // If this guy returns true, then chooseProc() must return a valid proc |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 448 | bool PtProcRec::init(SkCanvas::PointMode mode, const SkPaint& paint, |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 449 | const SkMatrix* matrix, const SkRasterClip* rc) { |
ochang | 3ece53e | 2015-05-21 15:44:53 -0700 | [diff] [blame] | 450 | if ((unsigned)mode > (unsigned)SkCanvas::kPolygon_PointMode) { |
| 451 | return false; |
| 452 | } |
| 453 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 454 | if (paint.getPathEffect()) { |
| 455 | return false; |
| 456 | } |
| 457 | SkScalar width = paint.getStrokeWidth(); |
| 458 | if (0 == width) { |
| 459 | fMode = mode; |
| 460 | fPaint = &paint; |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 461 | fClip = nullptr; |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 462 | fRC = rc; |
reed@google.com | 2d47a21 | 2012-11-29 21:01:00 +0000 | [diff] [blame] | 463 | fRadius = SK_FixedHalf; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 464 | return true; |
| 465 | } |
reed@android.com | b4f404a | 2009-07-10 17:02:17 +0000 | [diff] [blame] | 466 | if (paint.getStrokeCap() != SkPaint::kRound_Cap && |
robertphillips | 9f2251c | 2014-11-04 13:33:50 -0800 | [diff] [blame] | 467 | matrix->isScaleTranslate() && SkCanvas::kPoints_PointMode == mode) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 468 | SkScalar sx = matrix->get(SkMatrix::kMScaleX); |
| 469 | SkScalar sy = matrix->get(SkMatrix::kMScaleY); |
| 470 | if (SkScalarNearlyZero(sx - sy)) { |
| 471 | if (sx < 0) { |
| 472 | sx = -sx; |
| 473 | } |
| 474 | |
| 475 | fMode = mode; |
| 476 | fPaint = &paint; |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 477 | fClip = nullptr; |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 478 | fRC = rc; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 479 | fRadius = SkScalarToFixed(SkScalarMul(width, sx)) >> 1; |
| 480 | return true; |
| 481 | } |
| 482 | } |
| 483 | return false; |
| 484 | } |
| 485 | |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 486 | PtProcRec::Proc PtProcRec::chooseProc(SkBlitter** blitterPtr) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 487 | Proc proc = nullptr; |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 488 | |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 489 | SkBlitter* blitter = *blitterPtr; |
| 490 | if (fRC->isBW()) { |
| 491 | fClip = &fRC->bwRgn(); |
| 492 | } else { |
| 493 | fWrapper.init(*fRC, blitter); |
| 494 | fClip = &fWrapper.getRgn(); |
| 495 | blitter = fWrapper.getBlitter(); |
| 496 | *blitterPtr = blitter; |
| 497 | } |
| 498 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 499 | // for our arrays |
| 500 | SkASSERT(0 == SkCanvas::kPoints_PointMode); |
| 501 | SkASSERT(1 == SkCanvas::kLines_PointMode); |
| 502 | SkASSERT(2 == SkCanvas::kPolygon_PointMode); |
| 503 | SkASSERT((unsigned)fMode <= (unsigned)SkCanvas::kPolygon_PointMode); |
| 504 | |
reed@google.com | 2d47a21 | 2012-11-29 21:01:00 +0000 | [diff] [blame] | 505 | if (fPaint->isAntiAlias()) { |
| 506 | if (0 == fPaint->getStrokeWidth()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 507 | static const Proc gAAProcs[] = { |
| 508 | aa_square_proc, aa_line_hair_proc, aa_poly_hair_proc |
| 509 | }; |
| 510 | proc = gAAProcs[fMode]; |
reed@google.com | 2d47a21 | 2012-11-29 21:01:00 +0000 | [diff] [blame] | 511 | } else if (fPaint->getStrokeCap() != SkPaint::kRound_Cap) { |
| 512 | SkASSERT(SkCanvas::kPoints_PointMode == fMode); |
| 513 | proc = aa_square_proc; |
| 514 | } |
| 515 | } else { // BW |
| 516 | if (fRadius <= SK_FixedHalf) { // small radii and hairline |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 517 | if (SkCanvas::kPoints_PointMode == fMode && fClip->isRect()) { |
| 518 | uint32_t value; |
reed | 41e010c | 2015-06-09 12:16:53 -0700 | [diff] [blame] | 519 | const SkPixmap* bm = blitter->justAnOpaqueColor(&value); |
reed@google.com | 900ecf2 | 2014-02-20 20:55:37 +0000 | [diff] [blame] | 520 | if (bm && kRGB_565_SkColorType == bm->colorType()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 521 | proc = bw_pt_rect_16_hair_proc; |
commit-bot@chromium.org | 28fcae2 | 2014-04-11 17:15:40 +0000 | [diff] [blame] | 522 | } else if (bm && kN32_SkColorType == bm->colorType()) { |
reed@google.com | 2d47a21 | 2012-11-29 21:01:00 +0000 | [diff] [blame] | 523 | proc = bw_pt_rect_32_hair_proc; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 524 | } else { |
| 525 | proc = bw_pt_rect_hair_proc; |
| 526 | } |
| 527 | } else { |
| 528 | static Proc gBWProcs[] = { |
| 529 | bw_pt_hair_proc, bw_line_hair_proc, bw_poly_hair_proc |
| 530 | }; |
| 531 | proc = gBWProcs[fMode]; |
| 532 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 533 | } else { |
| 534 | proc = bw_square_proc; |
| 535 | } |
| 536 | } |
| 537 | return proc; |
| 538 | } |
| 539 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 540 | // each of these costs 8-bytes of stack space, so don't make it too large |
| 541 | // must be even for lines/polygon to work |
| 542 | #define MAX_DEV_PTS 32 |
| 543 | |
| 544 | void SkDraw::drawPoints(SkCanvas::PointMode mode, size_t count, |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 545 | const SkPoint pts[], const SkPaint& paint, |
| 546 | bool forceUseDevice) const { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 547 | // if we're in lines mode, force count to be even |
| 548 | if (SkCanvas::kLines_PointMode == mode) { |
| 549 | count &= ~(size_t)1; |
| 550 | } |
| 551 | |
| 552 | if ((long)count <= 0) { |
| 553 | return; |
| 554 | } |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 555 | |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 556 | SkASSERT(pts != nullptr); |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 557 | SkDEBUGCODE(this->validate();) |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 558 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 559 | // nothing to draw |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 560 | if (fRC->isEmpty()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 561 | return; |
| 562 | } |
| 563 | |
| 564 | PtProcRec rec; |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 565 | if (!forceUseDevice && rec.init(mode, paint, fMatrix, fRC)) { |
reed | 41e010c | 2015-06-09 12:16:53 -0700 | [diff] [blame] | 566 | SkAutoBlitterChoose blitter(fDst, *fMatrix, paint); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 567 | |
| 568 | SkPoint devPts[MAX_DEV_PTS]; |
| 569 | const SkMatrix* matrix = fMatrix; |
| 570 | SkBlitter* bltr = blitter.get(); |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 571 | PtProcRec::Proc proc = rec.chooseProc(&bltr); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 572 | // we have to back up subsequent passes if we're in polygon mode |
| 573 | const size_t backup = (SkCanvas::kPolygon_PointMode == mode); |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 574 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 575 | do { |
commit-bot@chromium.org | a8c7f77 | 2014-01-24 21:46:29 +0000 | [diff] [blame] | 576 | int n = SkToInt(count); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 577 | if (n > MAX_DEV_PTS) { |
| 578 | n = MAX_DEV_PTS; |
| 579 | } |
| 580 | matrix->mapPoints(devPts, pts, n); |
| 581 | proc(rec, devPts, n, bltr); |
| 582 | pts += n - backup; |
commit-bot@chromium.org | a8c7f77 | 2014-01-24 21:46:29 +0000 | [diff] [blame] | 583 | SkASSERT(SkToInt(count) >= n); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 584 | count -= n; |
| 585 | if (count > 0) { |
| 586 | count += backup; |
| 587 | } |
| 588 | } while (count != 0); |
| 589 | } else { |
| 590 | switch (mode) { |
| 591 | case SkCanvas::kPoints_PointMode: { |
| 592 | // temporarily mark the paint as filling. |
reed@google.com | 40c2ba2 | 2011-07-25 19:41:22 +0000 | [diff] [blame] | 593 | SkPaint newPaint(paint); |
| 594 | newPaint.setStyle(SkPaint::kFill_Style); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 595 | |
reed@google.com | 40c2ba2 | 2011-07-25 19:41:22 +0000 | [diff] [blame] | 596 | SkScalar width = newPaint.getStrokeWidth(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 597 | SkScalar radius = SkScalarHalf(width); |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 598 | |
reed@google.com | 40c2ba2 | 2011-07-25 19:41:22 +0000 | [diff] [blame] | 599 | if (newPaint.getStrokeCap() == SkPaint::kRound_Cap) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 600 | SkPath path; |
| 601 | SkMatrix preMatrix; |
mtklein | 7ef849d | 2014-11-24 09:11:45 -0800 | [diff] [blame] | 602 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 603 | path.addCircle(0, 0, radius); |
| 604 | for (size_t i = 0; i < count; i++) { |
| 605 | preMatrix.setTranslate(pts[i].fX, pts[i].fY); |
| 606 | // pass true for the last point, since we can modify |
| 607 | // then path then |
jvanverth | b3eb687 | 2014-10-24 07:12:51 -0700 | [diff] [blame] | 608 | path.setIsVolatile((count-1) == i); |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 609 | if (fDevice) { |
reed@google.com | 40c2ba2 | 2011-07-25 19:41:22 +0000 | [diff] [blame] | 610 | fDevice->drawPath(*this, path, newPaint, &preMatrix, |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 611 | (count-1) == i); |
| 612 | } else { |
reed@google.com | 40c2ba2 | 2011-07-25 19:41:22 +0000 | [diff] [blame] | 613 | this->drawPath(path, newPaint, &preMatrix, |
| 614 | (count-1) == i); |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 615 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 616 | } |
| 617 | } else { |
| 618 | SkRect r; |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 619 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 620 | for (size_t i = 0; i < count; i++) { |
| 621 | r.fLeft = pts[i].fX - radius; |
| 622 | r.fTop = pts[i].fY - radius; |
| 623 | r.fRight = r.fLeft + width; |
| 624 | r.fBottom = r.fTop + width; |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 625 | if (fDevice) { |
reed@google.com | 40c2ba2 | 2011-07-25 19:41:22 +0000 | [diff] [blame] | 626 | fDevice->drawRect(*this, r, newPaint); |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 627 | } else { |
reed@google.com | 40c2ba2 | 2011-07-25 19:41:22 +0000 | [diff] [blame] | 628 | this->drawRect(r, newPaint); |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 629 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 630 | } |
| 631 | } |
| 632 | break; |
| 633 | } |
| 634 | case SkCanvas::kLines_PointMode: |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 635 | if (2 == count && paint.getPathEffect()) { |
robertphillips@google.com | 629ab54 | 2012-11-28 17:18:11 +0000 | [diff] [blame] | 636 | // most likely a dashed line - see if it is one of the ones |
| 637 | // we can accelerate |
| 638 | SkStrokeRec rec(paint); |
robertphillips@google.com | 6d87557 | 2012-12-17 18:56:29 +0000 | [diff] [blame] | 639 | SkPathEffect::PointData pointData; |
robertphillips@google.com | 629ab54 | 2012-11-28 17:18:11 +0000 | [diff] [blame] | 640 | |
| 641 | SkPath path; |
| 642 | path.moveTo(pts[0]); |
| 643 | path.lineTo(pts[1]); |
| 644 | |
reed@google.com | 4bbdeac | 2013-01-24 21:03:11 +0000 | [diff] [blame] | 645 | SkRect cullRect = SkRect::Make(fRC->getBounds()); |
skia.committer@gmail.com | 4024f32 | 2013-01-25 07:06:46 +0000 | [diff] [blame] | 646 | |
reed@google.com | 4bbdeac | 2013-01-24 21:03:11 +0000 | [diff] [blame] | 647 | if (paint.getPathEffect()->asPoints(&pointData, path, rec, |
| 648 | *fMatrix, &cullRect)) { |
robertphillips@google.com | 6d87557 | 2012-12-17 18:56:29 +0000 | [diff] [blame] | 649 | // 'asPoints' managed to find some fast path |
| 650 | |
robertphillips@google.com | 629ab54 | 2012-11-28 17:18:11 +0000 | [diff] [blame] | 651 | SkPaint newP(paint); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 652 | newP.setPathEffect(nullptr); |
robertphillips@google.com | 935ad02 | 2012-12-05 19:07:21 +0000 | [diff] [blame] | 653 | newP.setStyle(SkPaint::kFill_Style); |
robertphillips@google.com | 629ab54 | 2012-11-28 17:18:11 +0000 | [diff] [blame] | 654 | |
robertphillips@google.com | 6d87557 | 2012-12-17 18:56:29 +0000 | [diff] [blame] | 655 | if (!pointData.fFirst.isEmpty()) { |
| 656 | if (fDevice) { |
| 657 | fDevice->drawPath(*this, pointData.fFirst, newP); |
| 658 | } else { |
| 659 | this->drawPath(pointData.fFirst, newP); |
| 660 | } |
robertphillips@google.com | 629ab54 | 2012-11-28 17:18:11 +0000 | [diff] [blame] | 661 | } |
robertphillips@google.com | 6d87557 | 2012-12-17 18:56:29 +0000 | [diff] [blame] | 662 | |
| 663 | if (!pointData.fLast.isEmpty()) { |
| 664 | if (fDevice) { |
| 665 | fDevice->drawPath(*this, pointData.fLast, newP); |
| 666 | } else { |
| 667 | this->drawPath(pointData.fLast, newP); |
| 668 | } |
robertphillips@google.com | 935ad02 | 2012-12-05 19:07:21 +0000 | [diff] [blame] | 669 | } |
robertphillips@google.com | 6d87557 | 2012-12-17 18:56:29 +0000 | [diff] [blame] | 670 | |
| 671 | if (pointData.fSize.fX == pointData.fSize.fY) { |
| 672 | // The rest of the dashed line can just be drawn as points |
| 673 | SkASSERT(pointData.fSize.fX == SkScalarHalf(newP.getStrokeWidth())); |
| 674 | |
| 675 | if (SkPathEffect::PointData::kCircles_PointFlag & pointData.fFlags) { |
| 676 | newP.setStrokeCap(SkPaint::kRound_Cap); |
| 677 | } else { |
| 678 | newP.setStrokeCap(SkPaint::kButt_Cap); |
| 679 | } |
| 680 | |
| 681 | if (fDevice) { |
skia.committer@gmail.com | 7a03d86 | 2012-12-18 02:03:03 +0000 | [diff] [blame] | 682 | fDevice->drawPoints(*this, |
robertphillips@google.com | 6d87557 | 2012-12-17 18:56:29 +0000 | [diff] [blame] | 683 | SkCanvas::kPoints_PointMode, |
| 684 | pointData.fNumPoints, |
| 685 | pointData.fPoints, |
| 686 | newP); |
| 687 | } else { |
| 688 | this->drawPoints(SkCanvas::kPoints_PointMode, |
| 689 | pointData.fNumPoints, |
| 690 | pointData.fPoints, |
| 691 | newP, |
| 692 | forceUseDevice); |
| 693 | } |
| 694 | break; |
| 695 | } else { |
| 696 | // The rest of the dashed line must be drawn as rects |
skia.committer@gmail.com | 7a03d86 | 2012-12-18 02:03:03 +0000 | [diff] [blame] | 697 | SkASSERT(!(SkPathEffect::PointData::kCircles_PointFlag & |
robertphillips@google.com | 6d87557 | 2012-12-17 18:56:29 +0000 | [diff] [blame] | 698 | pointData.fFlags)); |
| 699 | |
| 700 | SkRect r; |
| 701 | |
| 702 | for (int i = 0; i < pointData.fNumPoints; ++i) { |
| 703 | r.set(pointData.fPoints[i].fX - pointData.fSize.fX, |
| 704 | pointData.fPoints[i].fY - pointData.fSize.fY, |
| 705 | pointData.fPoints[i].fX + pointData.fSize.fX, |
| 706 | pointData.fPoints[i].fY + pointData.fSize.fY); |
| 707 | if (fDevice) { |
| 708 | fDevice->drawRect(*this, r, newP); |
| 709 | } else { |
| 710 | this->drawRect(r, newP); |
| 711 | } |
| 712 | } |
| 713 | } |
| 714 | |
robertphillips@google.com | 629ab54 | 2012-11-28 17:18:11 +0000 | [diff] [blame] | 715 | break; |
| 716 | } |
| 717 | } |
robertphillips@google.com | 629ab54 | 2012-11-28 17:18:11 +0000 | [diff] [blame] | 718 | // couldn't take fast path so fall through! |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 719 | case SkCanvas::kPolygon_PointMode: { |
| 720 | count -= 1; |
| 721 | SkPath path; |
| 722 | SkPaint p(paint); |
| 723 | p.setStyle(SkPaint::kStroke_Style); |
| 724 | size_t inc = (SkCanvas::kLines_PointMode == mode) ? 2 : 1; |
jvanverth | b3eb687 | 2014-10-24 07:12:51 -0700 | [diff] [blame] | 725 | path.setIsVolatile(true); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 726 | for (size_t i = 0; i < count; i += inc) { |
| 727 | path.moveTo(pts[i]); |
| 728 | path.lineTo(pts[i+1]); |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 729 | if (fDevice) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 730 | fDevice->drawPath(*this, path, p, nullptr, true); |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 731 | } else { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 732 | this->drawPath(path, p, nullptr, true); |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 733 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 734 | path.rewind(); |
| 735 | } |
| 736 | break; |
| 737 | } |
| 738 | } |
| 739 | } |
| 740 | } |
| 741 | |
fmalita | 1a178ca | 2015-01-15 06:01:23 -0800 | [diff] [blame] | 742 | static inline SkPoint compute_stroke_size(const SkPaint& paint, const SkMatrix& matrix) { |
| 743 | SkASSERT(matrix.rectStaysRect()); |
| 744 | SkASSERT(SkPaint::kFill_Style != paint.getStyle()); |
| 745 | |
| 746 | SkVector size; |
| 747 | SkPoint pt = { paint.getStrokeWidth(), paint.getStrokeWidth() }; |
| 748 | matrix.mapVectors(&size, &pt, 1); |
| 749 | return SkPoint::Make(SkScalarAbs(size.fX), SkScalarAbs(size.fY)); |
| 750 | } |
| 751 | |
reed@google.com | 761fb62 | 2011-04-04 18:58:05 +0000 | [diff] [blame] | 752 | static bool easy_rect_join(const SkPaint& paint, const SkMatrix& matrix, |
| 753 | SkPoint* strokeSize) { |
| 754 | if (SkPaint::kMiter_Join != paint.getStrokeJoin() || |
| 755 | paint.getStrokeMiter() < SK_ScalarSqrt2) { |
| 756 | return false; |
| 757 | } |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 758 | |
fmalita | 1a178ca | 2015-01-15 06:01:23 -0800 | [diff] [blame] | 759 | *strokeSize = compute_stroke_size(paint, matrix); |
reed@google.com | 761fb62 | 2011-04-04 18:58:05 +0000 | [diff] [blame] | 760 | return true; |
mike@reedtribe.org | 7ff678b | 2011-04-04 14:38:12 +0000 | [diff] [blame] | 761 | } |
| 762 | |
reed@google.com | 62ab7ad | 2011-04-05 14:08:25 +0000 | [diff] [blame] | 763 | SkDraw::RectType SkDraw::ComputeRectType(const SkPaint& paint, |
| 764 | const SkMatrix& matrix, |
| 765 | SkPoint* strokeSize) { |
| 766 | RectType rtype; |
| 767 | const SkScalar width = paint.getStrokeWidth(); |
| 768 | const bool zeroWidth = (0 == width); |
| 769 | SkPaint::Style style = paint.getStyle(); |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 770 | |
reed@google.com | 62ab7ad | 2011-04-05 14:08:25 +0000 | [diff] [blame] | 771 | if ((SkPaint::kStrokeAndFill_Style == style) && zeroWidth) { |
| 772 | style = SkPaint::kFill_Style; |
| 773 | } |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 774 | |
reed@google.com | 62ab7ad | 2011-04-05 14:08:25 +0000 | [diff] [blame] | 775 | if (paint.getPathEffect() || paint.getMaskFilter() || |
| 776 | paint.getRasterizer() || !matrix.rectStaysRect() || |
| 777 | SkPaint::kStrokeAndFill_Style == style) { |
| 778 | rtype = kPath_RectType; |
| 779 | } else if (SkPaint::kFill_Style == style) { |
| 780 | rtype = kFill_RectType; |
| 781 | } else if (zeroWidth) { |
| 782 | rtype = kHair_RectType; |
| 783 | } else if (easy_rect_join(paint, matrix, strokeSize)) { |
| 784 | rtype = kStroke_RectType; |
| 785 | } else { |
| 786 | rtype = kPath_RectType; |
| 787 | } |
| 788 | return rtype; |
| 789 | } |
mike@reedtribe.org | 7ff678b | 2011-04-04 14:38:12 +0000 | [diff] [blame] | 790 | |
reed@google.com | 7324415 | 2012-05-11 14:35:23 +0000 | [diff] [blame] | 791 | static const SkPoint* rect_points(const SkRect& r) { |
reed@google.com | fc2f0d0 | 2013-03-29 14:23:56 +0000 | [diff] [blame] | 792 | return SkTCast<const SkPoint*>(&r); |
reed@google.com | 7324415 | 2012-05-11 14:35:23 +0000 | [diff] [blame] | 793 | } |
| 794 | |
| 795 | static SkPoint* rect_points(SkRect& r) { |
reed@google.com | fc2f0d0 | 2013-03-29 14:23:56 +0000 | [diff] [blame] | 796 | return SkTCast<SkPoint*>(&r); |
reed@google.com | 40c2ba2 | 2011-07-25 19:41:22 +0000 | [diff] [blame] | 797 | } |
| 798 | |
reed | 0393912 | 2014-12-15 13:42:51 -0800 | [diff] [blame] | 799 | void SkDraw::drawRect(const SkRect& prePaintRect, const SkPaint& paint, |
| 800 | const SkMatrix* paintMatrix, const SkRect* postPaintRect) const { |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 801 | SkDEBUGCODE(this->validate();) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 802 | |
| 803 | // nothing to draw |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 804 | if (fRC->isEmpty()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 805 | return; |
| 806 | } |
| 807 | |
reed | 0393912 | 2014-12-15 13:42:51 -0800 | [diff] [blame] | 808 | const SkMatrix* matrix; |
| 809 | SkMatrix combinedMatrixStorage; |
| 810 | if (paintMatrix) { |
| 811 | SkASSERT(postPaintRect); |
| 812 | combinedMatrixStorage.setConcat(*fMatrix, *paintMatrix); |
| 813 | matrix = &combinedMatrixStorage; |
| 814 | } else { |
| 815 | SkASSERT(!postPaintRect); |
| 816 | matrix = fMatrix; |
| 817 | } |
| 818 | |
reed@google.com | 761fb62 | 2011-04-04 18:58:05 +0000 | [diff] [blame] | 819 | SkPoint strokeSize; |
reed@google.com | 62ab7ad | 2011-04-05 14:08:25 +0000 | [diff] [blame] | 820 | RectType rtype = ComputeRectType(paint, *fMatrix, &strokeSize); |
mike@reedtribe.org | 7ff678b | 2011-04-04 14:38:12 +0000 | [diff] [blame] | 821 | |
mike@reedtribe.org | 7ff678b | 2011-04-04 14:38:12 +0000 | [diff] [blame] | 822 | if (kPath_RectType == rtype) { |
reed | 0393912 | 2014-12-15 13:42:51 -0800 | [diff] [blame] | 823 | SkDraw draw(*this); |
| 824 | if (paintMatrix) { |
| 825 | draw.fMatrix = matrix; |
| 826 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 827 | SkPath tmp; |
reed | 0393912 | 2014-12-15 13:42:51 -0800 | [diff] [blame] | 828 | tmp.addRect(prePaintRect); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 829 | tmp.setFillType(SkPath::kWinding_FillType); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 830 | draw.drawPath(tmp, paint, nullptr, true); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 831 | return; |
| 832 | } |
| 833 | |
reed | 0393912 | 2014-12-15 13:42:51 -0800 | [diff] [blame] | 834 | SkRect devRect; |
fmalita | 1a178ca | 2015-01-15 06:01:23 -0800 | [diff] [blame] | 835 | const SkRect& paintRect = paintMatrix ? *postPaintRect : prePaintRect; |
| 836 | // skip the paintMatrix when transforming the rect by the CTM |
| 837 | fMatrix->mapPoints(rect_points(devRect), rect_points(paintRect), 2); |
reed@google.com | 7324415 | 2012-05-11 14:35:23 +0000 | [diff] [blame] | 838 | devRect.sort(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 839 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 840 | // look for the quick exit, before we build a blitter |
fmalita | 1a178ca | 2015-01-15 06:01:23 -0800 | [diff] [blame] | 841 | SkRect bbox = devRect; |
reed@google.com | 1c028bd | 2013-08-28 15:23:19 +0000 | [diff] [blame] | 842 | if (paint.getStyle() != SkPaint::kFill_Style) { |
| 843 | // extra space for hairlines |
george | b3eba47 | 2014-09-09 11:33:57 -0700 | [diff] [blame] | 844 | if (paint.getStrokeWidth() == 0) { |
fmalita | 1a178ca | 2015-01-15 06:01:23 -0800 | [diff] [blame] | 845 | bbox.outset(1, 1); |
george | b3eba47 | 2014-09-09 11:33:57 -0700 | [diff] [blame] | 846 | } else { |
fmalita | 1a178ca | 2015-01-15 06:01:23 -0800 | [diff] [blame] | 847 | // For kStroke_RectType, strokeSize is already computed. |
| 848 | const SkPoint& ssize = (kStroke_RectType == rtype) |
| 849 | ? strokeSize |
| 850 | : compute_stroke_size(paint, *fMatrix); |
| 851 | bbox.outset(SkScalarHalf(ssize.x()), SkScalarHalf(ssize.y())); |
george | b3eba47 | 2014-09-09 11:33:57 -0700 | [diff] [blame] | 852 | } |
reed@google.com | 1c028bd | 2013-08-28 15:23:19 +0000 | [diff] [blame] | 853 | } |
fmalita | 1a178ca | 2015-01-15 06:01:23 -0800 | [diff] [blame] | 854 | |
| 855 | SkIRect ir = bbox.roundOut(); |
reed@google.com | 1c028bd | 2013-08-28 15:23:19 +0000 | [diff] [blame] | 856 | if (fRC->quickReject(ir)) { |
| 857 | return; |
rmistry@google.com | e09d6f4 | 2013-08-27 18:53:41 +0000 | [diff] [blame] | 858 | } |
| 859 | |
reed | 41e010c | 2015-06-09 12:16:53 -0700 | [diff] [blame] | 860 | SkDeviceLooper looper(fDst, *fRC, ir, paint.isAntiAlias()); |
reed@google.com | 1c028bd | 2013-08-28 15:23:19 +0000 | [diff] [blame] | 861 | while (looper.next()) { |
| 862 | SkRect localDevRect; |
| 863 | looper.mapRect(&localDevRect, devRect); |
| 864 | SkMatrix localMatrix; |
reed | 0393912 | 2014-12-15 13:42:51 -0800 | [diff] [blame] | 865 | looper.mapMatrix(&localMatrix, *matrix); |
rmistry@google.com | e09d6f4 | 2013-08-27 18:53:41 +0000 | [diff] [blame] | 866 | |
reed | 41e010c | 2015-06-09 12:16:53 -0700 | [diff] [blame] | 867 | SkAutoBlitterChoose blitterStorage(looper.getPixmap(), localMatrix, paint); |
reed@google.com | 1c028bd | 2013-08-28 15:23:19 +0000 | [diff] [blame] | 868 | const SkRasterClip& clip = looper.getRC(); |
| 869 | SkBlitter* blitter = blitterStorage.get(); |
| 870 | |
| 871 | // we want to "fill" if we are kFill or kStrokeAndFill, since in the latter |
| 872 | // case we are also hairline (if we've gotten to here), which devolves to |
| 873 | // effectively just kFill |
| 874 | switch (rtype) { |
| 875 | case kFill_RectType: |
| 876 | if (paint.isAntiAlias()) { |
| 877 | SkScan::AntiFillRect(localDevRect, clip, blitter); |
| 878 | } else { |
| 879 | SkScan::FillRect(localDevRect, clip, blitter); |
| 880 | } |
| 881 | break; |
| 882 | case kStroke_RectType: |
| 883 | if (paint.isAntiAlias()) { |
| 884 | SkScan::AntiFrameRect(localDevRect, strokeSize, clip, blitter); |
| 885 | } else { |
| 886 | SkScan::FrameRect(localDevRect, strokeSize, clip, blitter); |
| 887 | } |
| 888 | break; |
| 889 | case kHair_RectType: |
| 890 | if (paint.isAntiAlias()) { |
| 891 | SkScan::AntiHairRect(localDevRect, clip, blitter); |
| 892 | } else { |
| 893 | SkScan::HairRect(localDevRect, clip, blitter); |
| 894 | } |
| 895 | break; |
| 896 | default: |
| 897 | SkDEBUGFAIL("bad rtype"); |
| 898 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 899 | } |
| 900 | } |
| 901 | |
| 902 | void SkDraw::drawDevMask(const SkMask& srcM, const SkPaint& paint) const { |
| 903 | if (srcM.fBounds.isEmpty()) { |
| 904 | return; |
| 905 | } |
| 906 | |
bungeman@google.com | 0a60b3d | 2011-09-26 19:09:08 +0000 | [diff] [blame] | 907 | const SkMask* mask = &srcM; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 908 | |
bungeman@google.com | 0a60b3d | 2011-09-26 19:09:08 +0000 | [diff] [blame] | 909 | SkMask dstM; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 910 | if (paint.getMaskFilter() && |
robertphillips | e80eb92 | 2015-12-17 11:33:12 -0800 | [diff] [blame] | 911 | paint.getMaskFilter()->filterMask(&dstM, srcM, *fMatrix, nullptr)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 912 | mask = &dstM; |
| 913 | } |
bungeman@google.com | 02f5584 | 2011-10-04 21:25:00 +0000 | [diff] [blame] | 914 | SkAutoMaskFreeImage ami(dstM.fImage); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 915 | |
reed | 41e010c | 2015-06-09 12:16:53 -0700 | [diff] [blame] | 916 | SkAutoBlitterChoose blitterChooser(fDst, *fMatrix, paint); |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 917 | SkBlitter* blitter = blitterChooser.get(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 918 | |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 919 | SkAAClipBlitterWrapper wrapper; |
| 920 | const SkRegion* clipRgn; |
| 921 | |
| 922 | if (fRC->isBW()) { |
| 923 | clipRgn = &fRC->bwRgn(); |
| 924 | } else { |
| 925 | wrapper.init(*fRC, blitter); |
| 926 | clipRgn = &wrapper.getRgn(); |
| 927 | blitter = wrapper.getBlitter(); |
| 928 | } |
| 929 | blitter->blitMaskRegion(*mask, *clipRgn); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 930 | } |
| 931 | |
reed@android.com | ebdeeb8 | 2009-09-03 21:45:49 +0000 | [diff] [blame] | 932 | static SkScalar fast_len(const SkVector& vec) { |
| 933 | SkScalar x = SkScalarAbs(vec.fX); |
| 934 | SkScalar y = SkScalarAbs(vec.fY); |
| 935 | if (x < y) { |
| 936 | SkTSwap(x, y); |
| 937 | } |
| 938 | return x + SkScalarHalf(y); |
| 939 | } |
| 940 | |
commit-bot@chromium.org | e0a868c | 2013-11-22 07:02:11 +0000 | [diff] [blame] | 941 | bool SkDrawTreatAAStrokeAsHairline(SkScalar strokeWidth, const SkMatrix& matrix, |
| 942 | SkScalar* coverage) { |
| 943 | SkASSERT(strokeWidth > 0); |
| 944 | // We need to try to fake a thick-stroke with a modulated hairline. |
reed@google.com | ecadf99 | 2011-09-19 19:18:18 +0000 | [diff] [blame] | 945 | |
tomhudson@google.com | 8d43018 | 2011-06-06 19:11:19 +0000 | [diff] [blame] | 946 | if (matrix.hasPerspective()) { |
reed@android.com | ebdeeb8 | 2009-09-03 21:45:49 +0000 | [diff] [blame] | 947 | return false; |
| 948 | } |
reed@google.com | ecadf99 | 2011-09-19 19:18:18 +0000 | [diff] [blame] | 949 | |
reed@android.com | ebdeeb8 | 2009-09-03 21:45:49 +0000 | [diff] [blame] | 950 | SkVector src[2], dst[2]; |
reed@google.com | ecadf99 | 2011-09-19 19:18:18 +0000 | [diff] [blame] | 951 | src[0].set(strokeWidth, 0); |
| 952 | src[1].set(0, strokeWidth); |
reed@android.com | ebdeeb8 | 2009-09-03 21:45:49 +0000 | [diff] [blame] | 953 | matrix.mapVectors(dst, src, 2); |
| 954 | SkScalar len0 = fast_len(dst[0]); |
| 955 | SkScalar len1 = fast_len(dst[1]); |
agl@chromium.org | 652807b | 2010-04-27 15:47:34 +0000 | [diff] [blame] | 956 | if (len0 <= SK_Scalar1 && len1 <= SK_Scalar1) { |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 957 | if (coverage) { |
commit-bot@chromium.org | e0a868c | 2013-11-22 07:02:11 +0000 | [diff] [blame] | 958 | *coverage = SkScalarAve(len0, len1); |
| 959 | } |
reed@android.com | ebdeeb8 | 2009-09-03 21:45:49 +0000 | [diff] [blame] | 960 | return true; |
| 961 | } |
| 962 | return false; |
| 963 | } |
| 964 | |
scroggo@google.com | a8e33a9 | 2013-11-08 18:02:53 +0000 | [diff] [blame] | 965 | void SkDraw::drawRRect(const SkRRect& rrect, const SkPaint& paint) const { |
| 966 | SkDEBUGCODE(this->validate()); |
| 967 | |
| 968 | if (fRC->isEmpty()) { |
| 969 | return; |
| 970 | } |
| 971 | |
| 972 | { |
| 973 | // TODO: Investigate optimizing these options. They are in the same |
| 974 | // order as SkDraw::drawPath, which handles each case. It may be |
| 975 | // that there is no way to optimize for these using the SkRRect path. |
| 976 | SkScalar coverage; |
| 977 | if (SkDrawTreatAsHairline(paint, *fMatrix, &coverage)) { |
| 978 | goto DRAW_PATH; |
| 979 | } |
| 980 | |
| 981 | if (paint.getPathEffect() || paint.getStyle() != SkPaint::kFill_Style) { |
| 982 | goto DRAW_PATH; |
| 983 | } |
| 984 | |
| 985 | if (paint.getRasterizer()) { |
| 986 | goto DRAW_PATH; |
| 987 | } |
| 988 | } |
| 989 | |
| 990 | if (paint.getMaskFilter()) { |
| 991 | // Transform the rrect into device space. |
| 992 | SkRRect devRRect; |
| 993 | if (rrect.transform(*fMatrix, &devRRect)) { |
reed | 41e010c | 2015-06-09 12:16:53 -0700 | [diff] [blame] | 994 | SkAutoBlitterChoose blitter(fDst, *fMatrix, paint); |
bsalomon | 055e192 | 2016-05-06 07:22:58 -0700 | [diff] [blame^] | 995 | if (paint.getMaskFilter()->filterRRect(devRRect, *fMatrix, *fRC, blitter.get())) { |
scroggo@google.com | a8e33a9 | 2013-11-08 18:02:53 +0000 | [diff] [blame] | 996 | return; // filterRRect() called the blitter, so we're done |
| 997 | } |
| 998 | } |
| 999 | } |
| 1000 | |
| 1001 | DRAW_PATH: |
| 1002 | // Now fall back to the default case of using a path. |
| 1003 | SkPath path; |
| 1004 | path.addRRect(rrect); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1005 | this->drawPath(path, paint, nullptr, true); |
scroggo@google.com | a8e33a9 | 2013-11-08 18:02:53 +0000 | [diff] [blame] | 1006 | } |
| 1007 | |
caryclark | 1a7eb26 | 2016-01-21 07:07:02 -0800 | [diff] [blame] | 1008 | SkScalar SkDraw::ComputeResScaleForStroking(const SkMatrix& matrix) { |
reed | 05d9044 | 2015-02-12 13:35:52 -0800 | [diff] [blame] | 1009 | if (!matrix.hasPerspective()) { |
| 1010 | SkScalar sx = SkPoint::Length(matrix[SkMatrix::kMScaleX], matrix[SkMatrix::kMSkewY]); |
| 1011 | SkScalar sy = SkPoint::Length(matrix[SkMatrix::kMSkewX], matrix[SkMatrix::kMScaleY]); |
| 1012 | if (SkScalarsAreFinite(sx, sy)) { |
| 1013 | return SkTMax(sx, sy); |
| 1014 | } |
| 1015 | } |
| 1016 | return 1; |
| 1017 | } |
| 1018 | |
reed@google.com | 32e5d97 | 2011-07-27 18:25:57 +0000 | [diff] [blame] | 1019 | void SkDraw::drawPath(const SkPath& origSrcPath, const SkPaint& origPaint, |
reed@google.com | 126f7f5 | 2013-11-07 16:06:53 +0000 | [diff] [blame] | 1020 | const SkMatrix* prePathMatrix, bool pathIsMutable, |
krajcevski | 53f0959 | 2014-08-06 11:12:14 -0700 | [diff] [blame] | 1021 | bool drawCoverage, SkBlitter* customBlitter) const { |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 1022 | SkDEBUGCODE(this->validate();) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1023 | |
| 1024 | // nothing to draw |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 1025 | if (fRC->isEmpty()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1026 | return; |
| 1027 | } |
| 1028 | |
| 1029 | SkPath* pathPtr = (SkPath*)&origSrcPath; |
| 1030 | bool doFill = true; |
| 1031 | SkPath tmpPath; |
| 1032 | SkMatrix tmpMatrix; |
| 1033 | const SkMatrix* matrix = fMatrix; |
jvanverth | b3eb687 | 2014-10-24 07:12:51 -0700 | [diff] [blame] | 1034 | tmpPath.setIsVolatile(true); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1035 | |
| 1036 | if (prePathMatrix) { |
reed@google.com | 32e5d97 | 2011-07-27 18:25:57 +0000 | [diff] [blame] | 1037 | if (origPaint.getPathEffect() || origPaint.getStyle() != SkPaint::kFill_Style || |
| 1038 | origPaint.getRasterizer()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1039 | SkPath* result = pathPtr; |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 1040 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1041 | if (!pathIsMutable) { |
| 1042 | result = &tmpPath; |
| 1043 | pathIsMutable = true; |
| 1044 | } |
| 1045 | pathPtr->transform(*prePathMatrix, result); |
| 1046 | pathPtr = result; |
| 1047 | } else { |
commit-bot@chromium.org | 9236238 | 2014-03-18 12:51:48 +0000 | [diff] [blame] | 1048 | tmpMatrix.setConcat(*matrix, *prePathMatrix); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1049 | matrix = &tmpMatrix; |
| 1050 | } |
| 1051 | } |
| 1052 | // at this point we're done with prePathMatrix |
| 1053 | SkDEBUGCODE(prePathMatrix = (const SkMatrix*)0x50FF8001;) |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 1054 | |
bsalomon@google.com | 5dc26b9 | 2012-10-11 19:32:32 +0000 | [diff] [blame] | 1055 | SkTCopyOnFirstWrite<SkPaint> paint(origPaint); |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 1056 | |
reed@google.com | ecadf99 | 2011-09-19 19:18:18 +0000 | [diff] [blame] | 1057 | { |
bsalomon@google.com | dd1be60 | 2012-01-18 20:34:00 +0000 | [diff] [blame] | 1058 | SkScalar coverage; |
| 1059 | if (SkDrawTreatAsHairline(origPaint, *matrix, &coverage)) { |
| 1060 | if (SK_Scalar1 == coverage) { |
bsalomon@google.com | 5dc26b9 | 2012-10-11 19:32:32 +0000 | [diff] [blame] | 1061 | paint.writable()->setStrokeWidth(0); |
egdaniel | dcfb7cf | 2015-01-22 06:52:29 -0800 | [diff] [blame] | 1062 | } else if (SkXfermode::SupportsCoverageAsAlpha(origPaint.getXfermode())) { |
bsalomon@google.com | dd1be60 | 2012-01-18 20:34:00 +0000 | [diff] [blame] | 1063 | U8CPU newAlpha; |
| 1064 | #if 0 |
| 1065 | newAlpha = SkToU8(SkScalarRoundToInt(coverage * |
| 1066 | origPaint.getAlpha())); |
| 1067 | #else |
| 1068 | // this is the old technique, which we preserve for now so |
| 1069 | // we don't change previous results (testing) |
| 1070 | // the new way seems fine, its just (a tiny bit) different |
| 1071 | int scale = (int)SkScalarMul(coverage, 256); |
| 1072 | newAlpha = origPaint.getAlpha() * scale >> 8; |
| 1073 | #endif |
bsalomon@google.com | 5dc26b9 | 2012-10-11 19:32:32 +0000 | [diff] [blame] | 1074 | SkPaint* writablePaint = paint.writable(); |
| 1075 | writablePaint->setStrokeWidth(0); |
| 1076 | writablePaint->setAlpha(newAlpha); |
bsalomon@google.com | dd1be60 | 2012-01-18 20:34:00 +0000 | [diff] [blame] | 1077 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1078 | } |
| 1079 | } |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 1080 | |
reed@google.com | 32e5d97 | 2011-07-27 18:25:57 +0000 | [diff] [blame] | 1081 | if (paint->getPathEffect() || paint->getStyle() != SkPaint::kFill_Style) { |
reed@google.com | 4bbdeac | 2013-01-24 21:03:11 +0000 | [diff] [blame] | 1082 | SkRect cullRect; |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1083 | const SkRect* cullRectPtr = nullptr; |
reed@google.com | 4bbdeac | 2013-01-24 21:03:11 +0000 | [diff] [blame] | 1084 | if (this->computeConservativeLocalClipBounds(&cullRect)) { |
| 1085 | cullRectPtr = &cullRect; |
| 1086 | } |
reed | 05d9044 | 2015-02-12 13:35:52 -0800 | [diff] [blame] | 1087 | doFill = paint->getFillPath(*pathPtr, &tmpPath, cullRectPtr, |
caryclark | 1a7eb26 | 2016-01-21 07:07:02 -0800 | [diff] [blame] | 1088 | ComputeResScaleForStroking(*fMatrix)); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1089 | pathPtr = &tmpPath; |
| 1090 | } |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 1091 | |
reed@google.com | 32e5d97 | 2011-07-27 18:25:57 +0000 | [diff] [blame] | 1092 | if (paint->getRasterizer()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1093 | SkMask mask; |
reed@google.com | 32e5d97 | 2011-07-27 18:25:57 +0000 | [diff] [blame] | 1094 | if (paint->getRasterizer()->rasterize(*pathPtr, *matrix, |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 1095 | &fRC->getBounds(), paint->getMaskFilter(), &mask, |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1096 | SkMask::kComputeBoundsAndRenderImage_CreateMode)) { |
reed@google.com | 32e5d97 | 2011-07-27 18:25:57 +0000 | [diff] [blame] | 1097 | this->drawDevMask(mask, *paint); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1098 | SkMask::FreeImage(mask.fImage); |
| 1099 | } |
| 1100 | return; |
| 1101 | } |
| 1102 | |
| 1103 | // avoid possibly allocating a new path in transform if we can |
| 1104 | SkPath* devPathPtr = pathIsMutable ? pathPtr : &tmpPath; |
| 1105 | |
| 1106 | // transform the path into device space |
| 1107 | pathPtr->transform(*matrix, devPathPtr); |
| 1108 | |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1109 | SkBlitter* blitter = nullptr; |
krajcevski | 53f0959 | 2014-08-06 11:12:14 -0700 | [diff] [blame] | 1110 | SkAutoBlitterChoose blitterStorage; |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1111 | if (nullptr == customBlitter) { |
reed | 41e010c | 2015-06-09 12:16:53 -0700 | [diff] [blame] | 1112 | blitterStorage.choose(fDst, *fMatrix, *paint, drawCoverage); |
krajcevski | 53f0959 | 2014-08-06 11:12:14 -0700 | [diff] [blame] | 1113 | blitter = blitterStorage.get(); |
| 1114 | } else { |
| 1115 | blitter = customBlitter; |
| 1116 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1117 | |
junov@chromium.org | 2ac4ef5 | 2012-04-04 15:16:51 +0000 | [diff] [blame] | 1118 | if (paint->getMaskFilter()) { |
bsalomon | 055e192 | 2016-05-06 07:22:58 -0700 | [diff] [blame^] | 1119 | SkStrokeRec::InitStyle style = doFill ? SkStrokeRec::kFill_InitStyle |
| 1120 | : SkStrokeRec::kHairline_InitStyle; |
krajcevski | 53f0959 | 2014-08-06 11:12:14 -0700 | [diff] [blame] | 1121 | if (paint->getMaskFilter()->filterPath(*devPathPtr, *fMatrix, *fRC, blitter, style)) { |
junov@chromium.org | 2ac4ef5 | 2012-04-04 15:16:51 +0000 | [diff] [blame] | 1122 | return; // filterPath() called the blitter, so we're done |
| 1123 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1124 | } |
| 1125 | |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 1126 | void (*proc)(const SkPath&, const SkRasterClip&, SkBlitter*); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1127 | if (doFill) { |
reed@google.com | 32e5d97 | 2011-07-27 18:25:57 +0000 | [diff] [blame] | 1128 | if (paint->isAntiAlias()) { |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 1129 | proc = SkScan::AntiFillPath; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1130 | } else { |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 1131 | proc = SkScan::FillPath; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1132 | } |
| 1133 | } else { // hairline |
reed@google.com | 32e5d97 | 2011-07-27 18:25:57 +0000 | [diff] [blame] | 1134 | if (paint->isAntiAlias()) { |
caryclark | 2028d7f | 2015-12-09 14:04:46 -0800 | [diff] [blame] | 1135 | switch (paint->getStrokeCap()) { |
| 1136 | case SkPaint::kButt_Cap: |
| 1137 | proc = SkScan::AntiHairPath; |
| 1138 | break; |
| 1139 | case SkPaint::kSquare_Cap: |
| 1140 | proc = SkScan::AntiHairSquarePath; |
| 1141 | break; |
| 1142 | case SkPaint::kRound_Cap: |
| 1143 | proc = SkScan::AntiHairRoundPath; |
| 1144 | break; |
| 1145 | default: |
| 1146 | proc SK_INIT_TO_AVOID_WARNING; |
| 1147 | SkDEBUGFAIL("unknown paint cap type"); |
| 1148 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1149 | } else { |
caryclark | 2028d7f | 2015-12-09 14:04:46 -0800 | [diff] [blame] | 1150 | switch (paint->getStrokeCap()) { |
| 1151 | case SkPaint::kButt_Cap: |
| 1152 | proc = SkScan::HairPath; |
| 1153 | break; |
| 1154 | case SkPaint::kSquare_Cap: |
| 1155 | proc = SkScan::HairSquarePath; |
| 1156 | break; |
| 1157 | case SkPaint::kRound_Cap: |
| 1158 | proc = SkScan::HairRoundPath; |
| 1159 | break; |
| 1160 | default: |
| 1161 | proc SK_INIT_TO_AVOID_WARNING; |
| 1162 | SkDEBUGFAIL("unknown paint cap type"); |
| 1163 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1164 | } |
| 1165 | } |
krajcevski | 53f0959 | 2014-08-06 11:12:14 -0700 | [diff] [blame] | 1166 | proc(*devPathPtr, *fRC, blitter); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1167 | } |
| 1168 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1169 | void SkDraw::drawBitmapAsMask(const SkBitmap& bitmap, |
| 1170 | const SkPaint& paint) const { |
reed@google.com | 900ecf2 | 2014-02-20 20:55:37 +0000 | [diff] [blame] | 1171 | SkASSERT(bitmap.colorType() == kAlpha_8_SkColorType); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1172 | |
fmalita | c7e211a | 2016-01-07 10:34:46 -0800 | [diff] [blame] | 1173 | if (SkTreatAsSprite(*fMatrix, bitmap.dimensions(), paint)) { |
reed@google.com | e1ca705 | 2013-12-17 19:22:07 +0000 | [diff] [blame] | 1174 | int ix = SkScalarRoundToInt(fMatrix->getTranslateX()); |
| 1175 | int iy = SkScalarRoundToInt(fMatrix->getTranslateY()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1176 | |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 1177 | SkAutoPixmapUnlock result; |
| 1178 | if (!bitmap.requestLock(&result)) { |
reed@google.com | a641f3f | 2012-12-13 22:16:30 +0000 | [diff] [blame] | 1179 | return; |
| 1180 | } |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 1181 | const SkPixmap& pmap = result.pixmap(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1182 | SkMask mask; |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 1183 | mask.fBounds.set(ix, iy, ix + pmap.width(), iy + pmap.height()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1184 | mask.fFormat = SkMask::kA8_Format; |
reed | 92fc2ae | 2015-05-22 08:06:21 -0700 | [diff] [blame] | 1185 | mask.fRowBytes = SkToU32(pmap.rowBytes()); |
| 1186 | // fImage is typed as writable, but in this case it is used read-only |
| 1187 | mask.fImage = (uint8_t*)pmap.addr8(0, 0); |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 1188 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1189 | this->drawDevMask(mask, paint); |
| 1190 | } else { // need to xform the bitmap first |
| 1191 | SkRect r; |
| 1192 | SkMask mask; |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 1193 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1194 | r.set(0, 0, |
| 1195 | SkIntToScalar(bitmap.width()), SkIntToScalar(bitmap.height())); |
| 1196 | fMatrix->mapRect(&r); |
| 1197 | r.round(&mask.fBounds); |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 1198 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1199 | // set the mask's bounds to the transformed bitmap-bounds, |
| 1200 | // clipped to the actual device |
| 1201 | { |
| 1202 | SkIRect devBounds; |
reed | 41e010c | 2015-06-09 12:16:53 -0700 | [diff] [blame] | 1203 | devBounds.set(0, 0, fDst.width(), fDst.height()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1204 | // need intersect(l, t, r, b) on irect |
| 1205 | if (!mask.fBounds.intersect(devBounds)) { |
| 1206 | return; |
| 1207 | } |
| 1208 | } |
reed@android.com | 543ed93 | 2009-04-24 12:43:40 +0000 | [diff] [blame] | 1209 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1210 | mask.fFormat = SkMask::kA8_Format; |
| 1211 | mask.fRowBytes = SkAlign4(mask.fBounds.width()); |
reed@android.com | 543ed93 | 2009-04-24 12:43:40 +0000 | [diff] [blame] | 1212 | size_t size = mask.computeImageSize(); |
| 1213 | if (0 == size) { |
| 1214 | // the mask is too big to allocated, draw nothing |
| 1215 | return; |
| 1216 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1217 | |
| 1218 | // allocate (and clear) our temp buffer to hold the transformed bitmap |
scroggo | 565901d | 2015-12-10 10:44:13 -0800 | [diff] [blame] | 1219 | SkAutoTMalloc<uint8_t> storage(size); |
| 1220 | mask.fImage = storage.get(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1221 | memset(mask.fImage, 0, size); |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 1222 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1223 | // now draw our bitmap(src) into mask(dst), transformed by the matrix |
| 1224 | { |
| 1225 | SkBitmap device; |
commit-bot@chromium.org | a3264e5 | 2014-05-30 13:26:10 +0000 | [diff] [blame] | 1226 | device.installPixels(SkImageInfo::MakeA8(mask.fBounds.width(), mask.fBounds.height()), |
| 1227 | mask.fImage, mask.fRowBytes); |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 1228 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1229 | SkCanvas c(device); |
| 1230 | // need the unclipped top/left for the translate |
| 1231 | c.translate(-SkIntToScalar(mask.fBounds.fLeft), |
| 1232 | -SkIntToScalar(mask.fBounds.fTop)); |
| 1233 | c.concat(*fMatrix); |
reed@android.com | 3469c76 | 2009-02-24 19:03:20 +0000 | [diff] [blame] | 1234 | |
| 1235 | // We can't call drawBitmap, or we'll infinitely recurse. Instead |
reed@android.com | fb12c3e | 2009-03-05 20:43:42 +0000 | [diff] [blame] | 1236 | // we manually build a shader and draw that into our new mask |
reed@android.com | 3469c76 | 2009-02-24 19:03:20 +0000 | [diff] [blame] | 1237 | SkPaint tmpPaint; |
| 1238 | tmpPaint.setFlags(paint.getFlags()); |
reed@google.com | 40c2ba2 | 2011-07-25 19:41:22 +0000 | [diff] [blame] | 1239 | SkAutoBitmapShaderInstall install(bitmap, tmpPaint); |
reed@android.com | 3469c76 | 2009-02-24 19:03:20 +0000 | [diff] [blame] | 1240 | SkRect rr; |
| 1241 | rr.set(0, 0, SkIntToScalar(bitmap.width()), |
| 1242 | SkIntToScalar(bitmap.height())); |
reed@google.com | 40c2ba2 | 2011-07-25 19:41:22 +0000 | [diff] [blame] | 1243 | c.drawRect(rr, install.paintWithShader()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1244 | } |
| 1245 | this->drawDevMask(mask, paint); |
| 1246 | } |
| 1247 | } |
| 1248 | |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 1249 | static bool clipped_out(const SkMatrix& m, const SkRasterClip& c, |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1250 | const SkRect& srcR) { |
| 1251 | SkRect dstR; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1252 | m.mapRect(&dstR, srcR); |
reed | b07a94f | 2014-11-19 05:03:18 -0800 | [diff] [blame] | 1253 | return c.quickReject(dstR.roundOut()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1254 | } |
| 1255 | |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 1256 | static bool clipped_out(const SkMatrix& matrix, const SkRasterClip& clip, |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1257 | int width, int height) { |
| 1258 | SkRect r; |
| 1259 | r.set(0, 0, SkIntToScalar(width), SkIntToScalar(height)); |
| 1260 | return clipped_out(matrix, clip, r); |
| 1261 | } |
| 1262 | |
reed | c240e71 | 2015-05-23 12:26:41 -0700 | [diff] [blame] | 1263 | static bool clipHandlesSprite(const SkRasterClip& clip, int x, int y, const SkPixmap& pmap) { |
| 1264 | return clip.isBW() || clip.quickContains(x, y, x + pmap.width(), y + pmap.height()); |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 1265 | } |
| 1266 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1267 | void SkDraw::drawBitmap(const SkBitmap& bitmap, const SkMatrix& prematrix, |
reed | 0393912 | 2014-12-15 13:42:51 -0800 | [diff] [blame] | 1268 | const SkRect* dstBounds, const SkPaint& origPaint) const { |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 1269 | SkDEBUGCODE(this->validate();) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1270 | |
| 1271 | // nothing to draw |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 1272 | if (fRC->isEmpty() || |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1273 | bitmap.width() == 0 || bitmap.height() == 0 || |
reed@google.com | 900ecf2 | 2014-02-20 20:55:37 +0000 | [diff] [blame] | 1274 | bitmap.colorType() == kUnknown_SkColorType) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1275 | return; |
| 1276 | } |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 1277 | |
reed@google.com | 40c2ba2 | 2011-07-25 19:41:22 +0000 | [diff] [blame] | 1278 | SkPaint paint(origPaint); |
| 1279 | paint.setStyle(SkPaint::kFill_Style); |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 1280 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1281 | SkMatrix matrix; |
commit-bot@chromium.org | 9236238 | 2014-03-18 12:51:48 +0000 | [diff] [blame] | 1282 | matrix.setConcat(*fMatrix, prematrix); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1283 | |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 1284 | if (clipped_out(matrix, *fRC, bitmap.width(), bitmap.height())) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1285 | return; |
| 1286 | } |
| 1287 | |
fmalita | c7e211a | 2016-01-07 10:34:46 -0800 | [diff] [blame] | 1288 | if (bitmap.colorType() != kAlpha_8_SkColorType |
| 1289 | && SkTreatAsSprite(matrix, bitmap.dimensions(), paint)) { |
reed@google.com | f7ef56d | 2012-12-14 13:46:53 +0000 | [diff] [blame] | 1290 | // |
| 1291 | // It is safe to call lock pixels now, since we know the matrix is |
| 1292 | // (more or less) identity. |
| 1293 | // |
reed | c240e71 | 2015-05-23 12:26:41 -0700 | [diff] [blame] | 1294 | SkAutoPixmapUnlock unlocker; |
| 1295 | if (!bitmap.requestLock(&unlocker)) { |
reed@google.com | f7ef56d | 2012-12-14 13:46:53 +0000 | [diff] [blame] | 1296 | return; |
| 1297 | } |
reed | c240e71 | 2015-05-23 12:26:41 -0700 | [diff] [blame] | 1298 | const SkPixmap& pmap = unlocker.pixmap(); |
reed@google.com | e1ca705 | 2013-12-17 19:22:07 +0000 | [diff] [blame] | 1299 | int ix = SkScalarRoundToInt(matrix.getTranslateX()); |
| 1300 | int iy = SkScalarRoundToInt(matrix.getTranslateY()); |
reed | c240e71 | 2015-05-23 12:26:41 -0700 | [diff] [blame] | 1301 | if (clipHandlesSprite(*fRC, ix, iy, pmap)) { |
commit-bot@chromium.org | a5572e5 | 2014-03-07 03:24:41 +0000 | [diff] [blame] | 1302 | SkTBlitterAllocator allocator; |
| 1303 | // blitter will be owned by the allocator. |
reed | 41e010c | 2015-06-09 12:16:53 -0700 | [diff] [blame] | 1304 | SkBlitter* blitter = SkBlitter::ChooseSprite(fDst, paint, pmap, ix, iy, &allocator); |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 1305 | if (blitter) { |
reed | c240e71 | 2015-05-23 12:26:41 -0700 | [diff] [blame] | 1306 | SkScan::FillIRect(SkIRect::MakeXYWH(ix, iy, pmap.width(), pmap.height()), |
| 1307 | *fRC, blitter); |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 1308 | return; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1309 | } |
reed | c240e71 | 2015-05-23 12:26:41 -0700 | [diff] [blame] | 1310 | // if !blitter, then we fall-through to the slower case |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1311 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1312 | } |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 1313 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1314 | // now make a temp draw on the stack, and use it |
| 1315 | // |
| 1316 | SkDraw draw(*this); |
| 1317 | draw.fMatrix = &matrix; |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 1318 | |
reed@google.com | 900ecf2 | 2014-02-20 20:55:37 +0000 | [diff] [blame] | 1319 | if (bitmap.colorType() == kAlpha_8_SkColorType) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1320 | draw.drawBitmapAsMask(bitmap, paint); |
| 1321 | } else { |
reed@google.com | 40c2ba2 | 2011-07-25 19:41:22 +0000 | [diff] [blame] | 1322 | SkAutoBitmapShaderInstall install(bitmap, paint); |
reed | 0393912 | 2014-12-15 13:42:51 -0800 | [diff] [blame] | 1323 | const SkPaint& paintWithShader = install.paintWithShader(); |
| 1324 | const SkRect srcBounds = SkRect::MakeIWH(bitmap.width(), bitmap.height()); |
| 1325 | if (dstBounds) { |
| 1326 | this->drawRect(srcBounds, paintWithShader, &prematrix, dstBounds); |
| 1327 | } else { |
| 1328 | draw.drawRect(srcBounds, paintWithShader); |
| 1329 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1330 | } |
| 1331 | } |
| 1332 | |
reed | c240e71 | 2015-05-23 12:26:41 -0700 | [diff] [blame] | 1333 | void SkDraw::drawSprite(const SkBitmap& bitmap, int x, int y, const SkPaint& origPaint) const { |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 1334 | SkDEBUGCODE(this->validate();) |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 1335 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1336 | // nothing to draw |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 1337 | if (fRC->isEmpty() || |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1338 | bitmap.width() == 0 || bitmap.height() == 0 || |
reed@google.com | 900ecf2 | 2014-02-20 20:55:37 +0000 | [diff] [blame] | 1339 | bitmap.colorType() == kUnknown_SkColorType) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1340 | return; |
| 1341 | } |
| 1342 | |
reed | c240e71 | 2015-05-23 12:26:41 -0700 | [diff] [blame] | 1343 | const SkIRect bounds = SkIRect::MakeXYWH(x, y, bitmap.width(), bitmap.height()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1344 | |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 1345 | if (fRC->quickReject(bounds)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1346 | return; // nothing to draw |
| 1347 | } |
| 1348 | |
reed@google.com | 40c2ba2 | 2011-07-25 19:41:22 +0000 | [diff] [blame] | 1349 | SkPaint paint(origPaint); |
| 1350 | paint.setStyle(SkPaint::kFill_Style); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1351 | |
reed | c240e71 | 2015-05-23 12:26:41 -0700 | [diff] [blame] | 1352 | SkAutoPixmapUnlock unlocker; |
| 1353 | if (!bitmap.requestLock(&unlocker)) { |
| 1354 | return; |
| 1355 | } |
| 1356 | const SkPixmap& pmap = unlocker.pixmap(); |
| 1357 | |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1358 | if (nullptr == paint.getColorFilter() && clipHandlesSprite(*fRC, x, y, pmap)) { |
commit-bot@chromium.org | a5572e5 | 2014-03-07 03:24:41 +0000 | [diff] [blame] | 1359 | SkTBlitterAllocator allocator; |
| 1360 | // blitter will be owned by the allocator. |
reed | 41e010c | 2015-06-09 12:16:53 -0700 | [diff] [blame] | 1361 | SkBlitter* blitter = SkBlitter::ChooseSprite(fDst, paint, pmap, x, y, &allocator); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1362 | if (blitter) { |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 1363 | SkScan::FillIRect(bounds, *fRC, blitter); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1364 | return; |
| 1365 | } |
| 1366 | } |
| 1367 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1368 | SkMatrix matrix; |
| 1369 | SkRect r; |
| 1370 | |
| 1371 | // get a scalar version of our rect |
| 1372 | r.set(bounds); |
| 1373 | |
commit-bot@chromium.org | 9c9005a | 2014-04-28 14:55:39 +0000 | [diff] [blame] | 1374 | // create shader with offset |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1375 | matrix.setTranslate(r.fLeft, r.fTop); |
commit-bot@chromium.org | 9c9005a | 2014-04-28 14:55:39 +0000 | [diff] [blame] | 1376 | SkAutoBitmapShaderInstall install(bitmap, paint, &matrix); |
| 1377 | const SkPaint& shaderPaint = install.paintWithShader(); |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 1378 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1379 | SkDraw draw(*this); |
| 1380 | matrix.reset(); |
| 1381 | draw.fMatrix = &matrix; |
| 1382 | // call ourself with a rect |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 1383 | // is this OK if paint has a rasterizer? |
reed@google.com | 40c2ba2 | 2011-07-25 19:41:22 +0000 | [diff] [blame] | 1384 | draw.drawRect(r, shaderPaint); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1385 | } |
| 1386 | |
| 1387 | /////////////////////////////////////////////////////////////////////////////// |
| 1388 | |
| 1389 | #include "SkScalerContext.h" |
| 1390 | #include "SkGlyphCache.h" |
reed@google.com | e691376 | 2012-08-07 15:19:47 +0000 | [diff] [blame] | 1391 | #include "SkTextToPathIter.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1392 | #include "SkUtils.h" |
| 1393 | |
commit-bot@chromium.org | 8128d8c | 2013-12-19 16:12:25 +0000 | [diff] [blame] | 1394 | bool SkDraw::ShouldDrawTextAsPaths(const SkPaint& paint, const SkMatrix& ctm) { |
| 1395 | // hairline glyphs are fast enough so we don't need to cache them |
| 1396 | if (SkPaint::kStroke_Style == paint.getStyle() && 0 == paint.getStrokeWidth()) { |
| 1397 | return true; |
| 1398 | } |
| 1399 | |
| 1400 | // we don't cache perspective |
| 1401 | if (ctm.hasPerspective()) { |
| 1402 | return true; |
| 1403 | } |
| 1404 | |
| 1405 | SkMatrix textM; |
| 1406 | return SkPaint::TooBigToUseCache(ctm, *paint.setTextMatrix(&textM)); |
| 1407 | } |
| 1408 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1409 | void SkDraw::drawText_asPaths(const char text[], size_t byteLength, |
| 1410 | SkScalar x, SkScalar y, |
| 1411 | const SkPaint& paint) const { |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 1412 | SkDEBUGCODE(this->validate();) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1413 | |
djsollen@google.com | 166e653 | 2012-03-20 14:24:38 +0000 | [diff] [blame] | 1414 | SkTextToPathIter iter(text, byteLength, paint, true); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1415 | |
| 1416 | SkMatrix matrix; |
| 1417 | matrix.setScale(iter.getPathScale(), iter.getPathScale()); |
| 1418 | matrix.postTranslate(x, y); |
| 1419 | |
| 1420 | const SkPath* iterPath; |
| 1421 | SkScalar xpos, prevXPos = 0; |
| 1422 | |
reed@google.com | 7b4531f | 2012-08-07 15:53:00 +0000 | [diff] [blame] | 1423 | while (iter.next(&iterPath, &xpos)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1424 | matrix.postTranslate(xpos - prevXPos, 0); |
reed@google.com | 7b4531f | 2012-08-07 15:53:00 +0000 | [diff] [blame] | 1425 | if (iterPath) { |
| 1426 | const SkPaint& pnt = iter.getPaint(); |
| 1427 | if (fDevice) { |
| 1428 | fDevice->drawPath(*this, *iterPath, pnt, &matrix, false); |
| 1429 | } else { |
| 1430 | this->drawPath(*iterPath, pnt, &matrix, false); |
| 1431 | } |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 1432 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1433 | prevXPos = xpos; |
| 1434 | } |
| 1435 | } |
| 1436 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1437 | // disable warning : local variable used without having been initialized |
bungeman | d7dc76f | 2016-03-10 11:14:40 -0800 | [diff] [blame] | 1438 | #if defined _WIN32 |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1439 | #pragma warning ( push ) |
| 1440 | #pragma warning ( disable : 4701 ) |
| 1441 | #endif |
| 1442 | |
herb | f553e4e | 2015-11-09 08:51:56 -0800 | [diff] [blame] | 1443 | //////////////////////////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1444 | |
herb | d4c24f6 | 2015-12-07 12:12:29 -0800 | [diff] [blame] | 1445 | class DrawOneGlyph { |
| 1446 | public: |
| 1447 | DrawOneGlyph(const SkDraw& draw, const SkPaint& paint, SkGlyphCache* cache, SkBlitter* blitter) |
| 1448 | : fUseRegionToDraw(UsingRegionToDraw(draw.fRC)) |
| 1449 | , fGlyphCache(cache) |
| 1450 | , fBlitter(blitter) |
| 1451 | , fClip(fUseRegionToDraw ? &draw.fRC->bwRgn() : nullptr) |
| 1452 | , fDraw(draw) |
| 1453 | , fPaint(paint) |
| 1454 | , fClipBounds(PickClipBounds(draw)) { } |
herb | 11a7f7f | 2015-11-24 12:41:00 -0800 | [diff] [blame] | 1455 | |
herb | d4c24f6 | 2015-12-07 12:12:29 -0800 | [diff] [blame] | 1456 | void operator()(const SkGlyph& glyph, SkPoint position, SkPoint rounding) { |
| 1457 | position += rounding; |
herb | d4c24f6 | 2015-12-07 12:12:29 -0800 | [diff] [blame] | 1458 | // Prevent glyphs from being drawn outside of or straddling the edge of device space. |
benjaminwagner | 77a9cc1 | 2016-03-25 11:24:30 -0700 | [diff] [blame] | 1459 | if (position.fX > INT_MAX - (INT16_MAX + UINT16_MAX) || |
| 1460 | position.fX < INT_MIN - (INT16_MIN + 0 /*UINT16_MIN*/) || |
| 1461 | position.fY > INT_MAX - (INT16_MAX + UINT16_MAX) || |
| 1462 | position.fY < INT_MIN - (INT16_MIN + 0 /*UINT16_MIN*/)) { |
herb | d4c24f6 | 2015-12-07 12:12:29 -0800 | [diff] [blame] | 1463 | return; |
| 1464 | } |
herb | 11a7f7f | 2015-11-24 12:41:00 -0800 | [diff] [blame] | 1465 | |
benjaminwagner | 77a9cc1 | 2016-03-25 11:24:30 -0700 | [diff] [blame] | 1466 | int left = SkScalarFloorToInt(position.fX); |
| 1467 | int top = SkScalarFloorToInt(position.fY); |
herb | d4c24f6 | 2015-12-07 12:12:29 -0800 | [diff] [blame] | 1468 | SkASSERT(glyph.fWidth > 0 && glyph.fHeight > 0); |
| 1469 | |
| 1470 | left += glyph.fLeft; |
| 1471 | top += glyph.fTop; |
| 1472 | |
| 1473 | int right = left + glyph.fWidth; |
| 1474 | int bottom = top + glyph.fHeight; |
| 1475 | |
| 1476 | SkMask mask; |
| 1477 | mask.fBounds.set(left, top, right, bottom); |
| 1478 | |
| 1479 | if (fUseRegionToDraw) { |
| 1480 | SkRegion::Cliperator clipper(*fClip, mask.fBounds); |
| 1481 | |
| 1482 | if (!clipper.done() && this->getImageData(glyph, &mask)) { |
| 1483 | const SkIRect& cr = clipper.rect(); |
| 1484 | do { |
| 1485 | this->blitMask(mask, cr); |
| 1486 | clipper.next(); |
| 1487 | } while (!clipper.done()); |
| 1488 | } |
| 1489 | } else { |
| 1490 | SkIRect storage; |
| 1491 | SkIRect* bounds = &mask.fBounds; |
| 1492 | |
| 1493 | // this extra test is worth it, assuming that most of the time it succeeds |
| 1494 | // since we can avoid writing to storage |
| 1495 | if (!fClipBounds.containsNoEmptyCheck(mask.fBounds)) { |
| 1496 | if (!storage.intersectNoEmptyCheck(mask.fBounds, fClipBounds)) |
| 1497 | return; |
| 1498 | bounds = &storage; |
| 1499 | } |
| 1500 | |
| 1501 | if (this->getImageData(glyph, &mask)) { |
| 1502 | this->blitMask(mask, *bounds); |
| 1503 | } |
| 1504 | } |
| 1505 | } |
| 1506 | |
| 1507 | private: |
| 1508 | static bool UsingRegionToDraw(const SkRasterClip* rClip) { |
| 1509 | return rClip->isBW() && !rClip->isRect(); |
| 1510 | } |
| 1511 | |
| 1512 | static SkIRect PickClipBounds(const SkDraw& draw) { |
| 1513 | const SkRasterClip& rasterClip = *draw.fRC; |
| 1514 | |
| 1515 | if (rasterClip.isBW()) { |
| 1516 | return rasterClip.bwRgn().getBounds(); |
| 1517 | } else { |
| 1518 | return rasterClip.aaRgn().getBounds(); |
| 1519 | } |
| 1520 | } |
| 1521 | |
| 1522 | bool getImageData(const SkGlyph& glyph, SkMask* mask) { |
| 1523 | uint8_t* bits = (uint8_t*)(fGlyphCache->findImage(glyph)); |
| 1524 | if (nullptr == bits) { |
| 1525 | return false; // can't rasterize glyph |
| 1526 | } |
| 1527 | mask->fImage = bits; |
| 1528 | mask->fRowBytes = glyph.rowBytes(); |
| 1529 | mask->fFormat = static_cast<SkMask::Format>(glyph.fMaskFormat); |
| 1530 | return true; |
| 1531 | } |
| 1532 | |
herb | 11a7f7f | 2015-11-24 12:41:00 -0800 | [diff] [blame] | 1533 | void blitMask(const SkMask& mask, const SkIRect& clip) const { |
| 1534 | if (SkMask::kARGB32_Format == mask.fFormat) { |
herb | d4c24f6 | 2015-12-07 12:12:29 -0800 | [diff] [blame] | 1535 | SkBitmap bm; |
| 1536 | bm.installPixels( |
| 1537 | SkImageInfo::MakeN32Premul(mask.fBounds.width(), mask.fBounds.height()), |
| 1538 | (SkPMColor*)mask.fImage, mask.fRowBytes); |
| 1539 | |
| 1540 | fDraw.drawSprite(bm, mask.fBounds.x(), mask.fBounds.y(), fPaint); |
herb | 11a7f7f | 2015-11-24 12:41:00 -0800 | [diff] [blame] | 1541 | } else { |
| 1542 | fBlitter->blitMask(mask, clip); |
| 1543 | } |
| 1544 | } |
| 1545 | |
herb | d4c24f6 | 2015-12-07 12:12:29 -0800 | [diff] [blame] | 1546 | const bool fUseRegionToDraw; |
| 1547 | SkGlyphCache * const fGlyphCache; |
| 1548 | SkBlitter * const fBlitter; |
| 1549 | const SkRegion* const fClip; |
| 1550 | const SkDraw& fDraw; |
| 1551 | const SkPaint& fPaint; |
| 1552 | const SkIRect fClipBounds; |
herb | 11a7f7f | 2015-11-24 12:41:00 -0800 | [diff] [blame] | 1553 | }; |
| 1554 | |
herb | d4c24f6 | 2015-12-07 12:12:29 -0800 | [diff] [blame] | 1555 | //////////////////////////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1556 | |
brianosman | a1e8f8d | 2016-04-08 06:47:54 -0700 | [diff] [blame] | 1557 | uint32_t SkDraw::scalerContextFlags() const { |
| 1558 | uint32_t flags = SkPaint::kBoostContrast_ScalerContextFlag; |
| 1559 | if (fDevice->imageInfo().isLinear()) { |
| 1560 | flags |= SkPaint::kFakeGamma_ScalerContextFlag; |
| 1561 | } |
| 1562 | return flags; |
bungeman | f6d1e60 | 2016-02-22 13:20:28 -0800 | [diff] [blame] | 1563 | } |
| 1564 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1565 | void SkDraw::drawText(const char text[], size_t byteLength, |
| 1566 | SkScalar x, SkScalar y, const SkPaint& paint) const { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1567 | SkASSERT(byteLength == 0 || text != nullptr); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1568 | |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 1569 | SkDEBUGCODE(this->validate();) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1570 | |
| 1571 | // nothing to draw |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1572 | if (text == nullptr || byteLength == 0 || fRC->isEmpty()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1573 | return; |
| 1574 | } |
| 1575 | |
bsalomon@google.com | 36d6eda | 2012-10-10 16:12:14 +0000 | [diff] [blame] | 1576 | // SkScalarRec doesn't currently have a way of representing hairline stroke and |
| 1577 | // will fill if its frame-width is 0. |
reed@google.com | ed43dff | 2013-06-04 16:56:27 +0000 | [diff] [blame] | 1578 | if (ShouldDrawTextAsPaths(paint, *fMatrix)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1579 | this->drawText_asPaths(text, byteLength, x, y, paint); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1580 | return; |
| 1581 | } |
| 1582 | |
brianosman | a1e8f8d | 2016-04-08 06:47:54 -0700 | [diff] [blame] | 1583 | SkAutoGlyphCache cache(paint, &fDevice->surfaceProps(), this->scalerContextFlags(), fMatrix); |
herb | 11a7f7f | 2015-11-24 12:41:00 -0800 | [diff] [blame] | 1584 | |
| 1585 | // The Blitter Choose needs to be live while using the blitter below. |
| 1586 | SkAutoBlitterChoose blitterChooser(fDst, *fMatrix, paint); |
| 1587 | SkAAClipBlitterWrapper wrapper(*fRC, blitterChooser.get()); |
bungeman | f6d1e60 | 2016-02-22 13:20:28 -0800 | [diff] [blame] | 1588 | DrawOneGlyph drawOneGlyph(*this, paint, cache.get(), wrapper.getBlitter()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1589 | |
herb | e59124e | 2015-11-18 10:54:39 -0800 | [diff] [blame] | 1590 | SkFindAndPlaceGlyph::ProcessText( |
herb | 4c11b3f | 2015-11-20 13:53:12 -0800 | [diff] [blame] | 1591 | paint.getTextEncoding(), text, byteLength, |
bungeman | f6d1e60 | 2016-02-22 13:20:28 -0800 | [diff] [blame] | 1592 | {x, y}, *fMatrix, paint.getTextAlign(), cache.get(), drawOneGlyph); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1593 | } |
| 1594 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1595 | ////////////////////////////////////////////////////////////////////////////// |
| 1596 | |
reed@google.com | ed43dff | 2013-06-04 16:56:27 +0000 | [diff] [blame] | 1597 | void SkDraw::drawPosText_asPaths(const char text[], size_t byteLength, |
fmalita | 05c4a43 | 2014-09-29 06:29:53 -0700 | [diff] [blame] | 1598 | const SkScalar pos[], int scalarsPerPosition, |
| 1599 | const SkPoint& offset, const SkPaint& origPaint) const { |
reed@google.com | ed43dff | 2013-06-04 16:56:27 +0000 | [diff] [blame] | 1600 | // setup our std paint, in hopes of getting hits in the cache |
| 1601 | SkPaint paint(origPaint); |
| 1602 | SkScalar matrixScale = paint.setupForAsPaths(); |
| 1603 | |
reed@google.com | 5a64902 | 2013-06-05 18:00:30 +0000 | [diff] [blame] | 1604 | SkMatrix matrix; |
| 1605 | matrix.setScale(matrixScale, matrixScale); |
skia.committer@gmail.com | 8f6ef40 | 2013-06-05 07:01:06 +0000 | [diff] [blame] | 1606 | |
commit-bot@chromium.org | 4e82cdb | 2014-05-23 12:32:23 +0000 | [diff] [blame] | 1607 | // Temporarily jam in kFill, so we only ever ask for the raw outline from the cache. |
| 1608 | paint.setStyle(SkPaint::kFill_Style); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1609 | paint.setPathEffect(nullptr); |
commit-bot@chromium.org | 4e82cdb | 2014-05-23 12:32:23 +0000 | [diff] [blame] | 1610 | |
benjaminwagner | d936f63 | 2016-02-23 10:44:31 -0800 | [diff] [blame] | 1611 | SkPaint::GlyphCacheProc glyphCacheProc = paint.getGlyphCacheProc(true); |
brianosman | a1e8f8d | 2016-04-08 06:47:54 -0700 | [diff] [blame] | 1612 | SkAutoGlyphCache cache(paint, &fDevice->surfaceProps(), this->scalerContextFlags(), nullptr); |
reed@google.com | ed43dff | 2013-06-04 16:56:27 +0000 | [diff] [blame] | 1613 | |
| 1614 | const char* stop = text + byteLength; |
bungeman | 79738cc | 2015-03-11 14:05:29 -0700 | [diff] [blame] | 1615 | SkTextAlignProc alignProc(paint.getTextAlign()); |
fmalita | 05c4a43 | 2014-09-29 06:29:53 -0700 | [diff] [blame] | 1616 | SkTextMapStateProc tmsProc(SkMatrix::I(), offset, scalarsPerPosition); |
skia.committer@gmail.com | 8f6ef40 | 2013-06-05 07:01:06 +0000 | [diff] [blame] | 1617 | |
commit-bot@chromium.org | 4e82cdb | 2014-05-23 12:32:23 +0000 | [diff] [blame] | 1618 | // Now restore the original settings, so we "draw" with whatever style/stroking. |
| 1619 | paint.setStyle(origPaint.getStyle()); |
reed | a439334 | 2016-03-18 11:22:57 -0700 | [diff] [blame] | 1620 | paint.setPathEffect(sk_ref_sp(origPaint.getPathEffect())); |
commit-bot@chromium.org | 4e82cdb | 2014-05-23 12:32:23 +0000 | [diff] [blame] | 1621 | |
reed@google.com | ed43dff | 2013-06-04 16:56:27 +0000 | [diff] [blame] | 1622 | while (text < stop) { |
benjaminwagner | d936f63 | 2016-02-23 10:44:31 -0800 | [diff] [blame] | 1623 | const SkGlyph& glyph = glyphCacheProc(cache.get(), &text); |
reed@google.com | ed43dff | 2013-06-04 16:56:27 +0000 | [diff] [blame] | 1624 | if (glyph.fWidth) { |
| 1625 | const SkPath* path = cache->findPath(glyph); |
| 1626 | if (path) { |
kkinnunen | cb9a2c8 | 2014-06-12 23:06:28 -0700 | [diff] [blame] | 1627 | SkPoint tmsLoc; |
| 1628 | tmsProc(pos, &tmsLoc); |
bungeman@google.com | cfd90d6 | 2013-12-13 21:26:02 +0000 | [diff] [blame] | 1629 | SkPoint loc; |
kkinnunen | cb9a2c8 | 2014-06-12 23:06:28 -0700 | [diff] [blame] | 1630 | alignProc(tmsLoc, glyph, &loc); |
skia.committer@gmail.com | 8f6ef40 | 2013-06-05 07:01:06 +0000 | [diff] [blame] | 1631 | |
bungeman@google.com | cfd90d6 | 2013-12-13 21:26:02 +0000 | [diff] [blame] | 1632 | matrix[SkMatrix::kMTransX] = loc.fX; |
| 1633 | matrix[SkMatrix::kMTransY] = loc.fY; |
reed@google.com | 5a64902 | 2013-06-05 18:00:30 +0000 | [diff] [blame] | 1634 | if (fDevice) { |
| 1635 | fDevice->drawPath(*this, *path, paint, &matrix, false); |
| 1636 | } else { |
| 1637 | this->drawPath(*path, paint, &matrix, false); |
| 1638 | } |
reed@google.com | ed43dff | 2013-06-04 16:56:27 +0000 | [diff] [blame] | 1639 | } |
| 1640 | } |
| 1641 | pos += scalarsPerPosition; |
| 1642 | } |
| 1643 | } |
| 1644 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1645 | void SkDraw::drawPosText(const char text[], size_t byteLength, |
fmalita | 05c4a43 | 2014-09-29 06:29:53 -0700 | [diff] [blame] | 1646 | const SkScalar pos[], int scalarsPerPosition, |
| 1647 | const SkPoint& offset, const SkPaint& paint) const { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1648 | SkASSERT(byteLength == 0 || text != nullptr); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1649 | SkASSERT(1 == scalarsPerPosition || 2 == scalarsPerPosition); |
| 1650 | |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 1651 | SkDEBUGCODE(this->validate();) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1652 | |
| 1653 | // nothing to draw |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1654 | if (text == nullptr || byteLength == 0 || fRC->isEmpty()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1655 | return; |
| 1656 | } |
| 1657 | |
reed@google.com | ed43dff | 2013-06-04 16:56:27 +0000 | [diff] [blame] | 1658 | if (ShouldDrawTextAsPaths(paint, *fMatrix)) { |
fmalita | 05c4a43 | 2014-09-29 06:29:53 -0700 | [diff] [blame] | 1659 | this->drawPosText_asPaths(text, byteLength, pos, scalarsPerPosition, offset, paint); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1660 | return; |
| 1661 | } |
| 1662 | |
brianosman | a1e8f8d | 2016-04-08 06:47:54 -0700 | [diff] [blame] | 1663 | SkAutoGlyphCache cache(paint, &fDevice->surfaceProps(), this->scalerContextFlags(), fMatrix); |
herb | d4c24f6 | 2015-12-07 12:12:29 -0800 | [diff] [blame] | 1664 | |
herb | 9be5ff6 | 2015-11-11 11:30:11 -0800 | [diff] [blame] | 1665 | // The Blitter Choose needs to be live while using the blitter below. |
herb | 11a7f7f | 2015-11-24 12:41:00 -0800 | [diff] [blame] | 1666 | SkAutoBlitterChoose blitterChooser(fDst, *fMatrix, paint); |
| 1667 | SkAAClipBlitterWrapper wrapper(*fRC, blitterChooser.get()); |
bungeman | f6d1e60 | 2016-02-22 13:20:28 -0800 | [diff] [blame] | 1668 | DrawOneGlyph drawOneGlyph(*this, paint, cache.get(), wrapper.getBlitter()); |
herb | d4c24f6 | 2015-12-07 12:12:29 -0800 | [diff] [blame] | 1669 | SkPaint::Align textAlignment = paint.getTextAlign(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1670 | |
herb | 9be5ff6 | 2015-11-11 11:30:11 -0800 | [diff] [blame] | 1671 | SkFindAndPlaceGlyph::ProcessPosText( |
herb | 4c11b3f | 2015-11-20 13:53:12 -0800 | [diff] [blame] | 1672 | paint.getTextEncoding(), text, byteLength, |
bungeman | f6d1e60 | 2016-02-22 13:20:28 -0800 | [diff] [blame] | 1673 | offset, *fMatrix, pos, scalarsPerPosition, textAlignment, cache.get(), drawOneGlyph); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1674 | } |
| 1675 | |
bungeman | d7dc76f | 2016-03-10 11:14:40 -0800 | [diff] [blame] | 1676 | #if defined _WIN32 |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1677 | #pragma warning ( pop ) |
| 1678 | #endif |
| 1679 | |
| 1680 | /////////////////////////////////////////////////////////////////////////////// |
| 1681 | |
reed | 5dc6b7d | 2015-04-14 10:40:44 -0700 | [diff] [blame] | 1682 | static SkScan::HairRCProc ChooseHairProc(bool doAntiAlias) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1683 | return doAntiAlias ? SkScan::AntiHairLine : SkScan::HairLine; |
| 1684 | } |
| 1685 | |
| 1686 | static bool texture_to_matrix(const VertState& state, const SkPoint verts[], |
| 1687 | const SkPoint texs[], SkMatrix* matrix) { |
| 1688 | SkPoint src[3], dst[3]; |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 1689 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1690 | src[0] = texs[state.f0]; |
| 1691 | src[1] = texs[state.f1]; |
| 1692 | src[2] = texs[state.f2]; |
| 1693 | dst[0] = verts[state.f0]; |
| 1694 | dst[1] = verts[state.f1]; |
| 1695 | dst[2] = verts[state.f2]; |
| 1696 | return matrix->setPolyToPoly(src, dst, 3); |
| 1697 | } |
| 1698 | |
| 1699 | class SkTriColorShader : public SkShader { |
| 1700 | public: |
aleksandar.stojiljkovic | 88cb822 | 2016-03-08 11:18:21 -0800 | [diff] [blame] | 1701 | SkTriColorShader(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1702 | |
commit-bot@chromium.org | 87fcd95 | 2014-04-23 19:10:51 +0000 | [diff] [blame] | 1703 | class TriColorShaderContext : public SkShader::Context { |
| 1704 | public: |
commit-bot@chromium.org | e901b6d | 2014-05-01 19:31:31 +0000 | [diff] [blame] | 1705 | TriColorShaderContext(const SkTriColorShader& shader, const ContextRec&); |
commit-bot@chromium.org | 87fcd95 | 2014-04-23 19:10:51 +0000 | [diff] [blame] | 1706 | virtual ~TriColorShaderContext(); |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 1707 | void shadeSpan(int x, int y, SkPMColor dstC[], int count) override; |
commit-bot@chromium.org | 87fcd95 | 2014-04-23 19:10:51 +0000 | [diff] [blame] | 1708 | |
| 1709 | private: |
aleksandar.stojiljkovic | 88cb822 | 2016-03-08 11:18:21 -0800 | [diff] [blame] | 1710 | bool setup(const SkPoint pts[], const SkColor colors[], int, int, int); |
| 1711 | |
commit-bot@chromium.org | 87fcd95 | 2014-04-23 19:10:51 +0000 | [diff] [blame] | 1712 | SkMatrix fDstToUnit; |
| 1713 | SkPMColor fColors[3]; |
aleksandar.stojiljkovic | 88cb822 | 2016-03-08 11:18:21 -0800 | [diff] [blame] | 1714 | bool fSetup; |
commit-bot@chromium.org | 87fcd95 | 2014-04-23 19:10:51 +0000 | [diff] [blame] | 1715 | |
| 1716 | typedef SkShader::Context INHERITED; |
| 1717 | }; |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 1718 | |
aleksandar.stojiljkovic | 88cb822 | 2016-03-08 11:18:21 -0800 | [diff] [blame] | 1719 | struct TriColorShaderData { |
| 1720 | const SkPoint* pts; |
| 1721 | const SkColor* colors; |
| 1722 | const VertState *state; |
| 1723 | }; |
| 1724 | |
commit-bot@chromium.org | 0f10f7b | 2014-03-13 18:02:17 +0000 | [diff] [blame] | 1725 | SK_TO_STRING_OVERRIDE() |
mtklein | 7e44bb1 | 2015-01-07 09:06:08 -0800 | [diff] [blame] | 1726 | |
| 1727 | // For serialization. This will never be called. |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1728 | Factory getFactory() const override { sk_throw(); return nullptr; } |
djsollen@google.com | ba28d03 | 2012-03-26 17:57:35 +0000 | [diff] [blame] | 1729 | |
aleksandar.stojiljkovic | 88cb822 | 2016-03-08 11:18:21 -0800 | [diff] [blame] | 1730 | // Supply setup data to context from drawing setup |
| 1731 | void bindSetupData(TriColorShaderData* setupData) { fSetupData = setupData; } |
| 1732 | |
| 1733 | // Take the setup data from context when needed. |
| 1734 | TriColorShaderData* takeSetupData() { |
| 1735 | TriColorShaderData *data = fSetupData; |
| 1736 | fSetupData = NULL; |
| 1737 | return data; |
| 1738 | } |
| 1739 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1740 | protected: |
reed | 773ceda | 2016-03-03 18:18:25 -0800 | [diff] [blame] | 1741 | size_t onContextSize(const ContextRec&) const override; |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 1742 | Context* onCreateContext(const ContextRec& rec, void* storage) const override { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 1743 | return new (storage) TriColorShaderContext(*this, rec); |
commit-bot@chromium.org | ce56d96 | 2014-05-05 18:39:18 +0000 | [diff] [blame] | 1744 | } |
| 1745 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1746 | private: |
aleksandar.stojiljkovic | 88cb822 | 2016-03-08 11:18:21 -0800 | [diff] [blame] | 1747 | TriColorShaderData *fSetupData; |
| 1748 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1749 | typedef SkShader INHERITED; |
| 1750 | }; |
| 1751 | |
commit-bot@chromium.org | 87fcd95 | 2014-04-23 19:10:51 +0000 | [diff] [blame] | 1752 | bool SkTriColorShader::TriColorShaderContext::setup(const SkPoint pts[], const SkColor colors[], |
| 1753 | int index0, int index1, int index2) { |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 1754 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1755 | fColors[0] = SkPreMultiplyColor(colors[index0]); |
| 1756 | fColors[1] = SkPreMultiplyColor(colors[index1]); |
| 1757 | fColors[2] = SkPreMultiplyColor(colors[index2]); |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 1758 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1759 | SkMatrix m, im; |
| 1760 | m.reset(); |
| 1761 | m.set(0, pts[index1].fX - pts[index0].fX); |
| 1762 | m.set(1, pts[index2].fX - pts[index0].fX); |
| 1763 | m.set(2, pts[index0].fX); |
| 1764 | m.set(3, pts[index1].fY - pts[index0].fY); |
| 1765 | m.set(4, pts[index2].fY - pts[index0].fY); |
| 1766 | m.set(5, pts[index0].fY); |
| 1767 | if (!m.invert(&im)) { |
| 1768 | return false; |
| 1769 | } |
commit-bot@chromium.org | 80116dc | 2014-05-06 17:16:03 +0000 | [diff] [blame] | 1770 | // We can't call getTotalInverse(), because we explicitly don't want to look at the localmatrix |
| 1771 | // as our interators are intrinsically tied to the vertices, and nothing else. |
| 1772 | SkMatrix ctmInv; |
| 1773 | if (!this->getCTM().invert(&ctmInv)) { |
| 1774 | return false; |
| 1775 | } |
aleksandar.stojiljkovic | 88cb822 | 2016-03-08 11:18:21 -0800 | [diff] [blame] | 1776 | // TODO replace INV(m) * INV(ctm) with INV(ctm * m) |
commit-bot@chromium.org | 80116dc | 2014-05-06 17:16:03 +0000 | [diff] [blame] | 1777 | fDstToUnit.setConcat(im, ctmInv); |
commit-bot@chromium.org | 9236238 | 2014-03-18 12:51:48 +0000 | [diff] [blame] | 1778 | return true; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1779 | } |
| 1780 | |
| 1781 | #include "SkColorPriv.h" |
reed@android.com | 689411a | 2008-12-18 02:52:32 +0000 | [diff] [blame] | 1782 | #include "SkComposeShader.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1783 | |
| 1784 | static int ScalarTo256(SkScalar v) { |
benjaminwagner | 43437c2 | 2016-02-24 10:57:47 -0800 | [diff] [blame] | 1785 | return static_cast<int>(SkScalarPin(v, 0, 1) * 256 + 0.5); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1786 | } |
| 1787 | |
aleksandar.stojiljkovic | 88cb822 | 2016-03-08 11:18:21 -0800 | [diff] [blame] | 1788 | SkTriColorShader::SkTriColorShader() |
| 1789 | : INHERITED(NULL) |
| 1790 | , fSetupData(NULL) {} |
commit-bot@chromium.org | 87fcd95 | 2014-04-23 19:10:51 +0000 | [diff] [blame] | 1791 | |
commit-bot@chromium.org | e901b6d | 2014-05-01 19:31:31 +0000 | [diff] [blame] | 1792 | SkTriColorShader::TriColorShaderContext::TriColorShaderContext(const SkTriColorShader& shader, |
| 1793 | const ContextRec& rec) |
aleksandar.stojiljkovic | 88cb822 | 2016-03-08 11:18:21 -0800 | [diff] [blame] | 1794 | : INHERITED(shader, rec) |
| 1795 | , fSetup(false) {} |
commit-bot@chromium.org | 87fcd95 | 2014-04-23 19:10:51 +0000 | [diff] [blame] | 1796 | |
| 1797 | SkTriColorShader::TriColorShaderContext::~TriColorShaderContext() {} |
| 1798 | |
reed | 773ceda | 2016-03-03 18:18:25 -0800 | [diff] [blame] | 1799 | size_t SkTriColorShader::onContextSize(const ContextRec&) const { |
reed | a0cee5f | 2016-03-04 07:38:11 -0800 | [diff] [blame] | 1800 | return sizeof(TriColorShaderContext); |
commit-bot@chromium.org | 87fcd95 | 2014-04-23 19:10:51 +0000 | [diff] [blame] | 1801 | } |
reed | 773ceda | 2016-03-03 18:18:25 -0800 | [diff] [blame] | 1802 | |
commit-bot@chromium.org | 87fcd95 | 2014-04-23 19:10:51 +0000 | [diff] [blame] | 1803 | void SkTriColorShader::TriColorShaderContext::shadeSpan(int x, int y, SkPMColor dstC[], int count) { |
aleksandar.stojiljkovic | 88cb822 | 2016-03-08 11:18:21 -0800 | [diff] [blame] | 1804 | SkTriColorShader* parent = static_cast<SkTriColorShader*>(const_cast<SkShader*>(&fShader)); |
| 1805 | TriColorShaderData* set = parent->takeSetupData(); |
| 1806 | if (set) { |
| 1807 | fSetup = setup(set->pts, set->colors, set->state->f0, set->state->f1, set->state->f2); |
| 1808 | } |
| 1809 | |
| 1810 | if (!fSetup) { |
| 1811 | // Invalid matrices. Not checked before so no need to assert. |
| 1812 | return; |
| 1813 | } |
| 1814 | |
commit-bot@chromium.org | 06a3206 | 2014-05-05 21:35:09 +0000 | [diff] [blame] | 1815 | const int alphaScale = Sk255To256(this->getPaintAlpha()); |
| 1816 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1817 | SkPoint src; |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 1818 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1819 | for (int i = 0; i < count; i++) { |
| 1820 | fDstToUnit.mapXY(SkIntToScalar(x), SkIntToScalar(y), &src); |
| 1821 | x += 1; |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 1822 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1823 | int scale1 = ScalarTo256(src.fX); |
| 1824 | int scale2 = ScalarTo256(src.fY); |
| 1825 | int scale0 = 256 - scale1 - scale2; |
| 1826 | if (scale0 < 0) { |
| 1827 | if (scale1 > scale2) { |
| 1828 | scale2 = 256 - scale1; |
| 1829 | } else { |
| 1830 | scale1 = 256 - scale2; |
| 1831 | } |
| 1832 | scale0 = 0; |
| 1833 | } |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 1834 | |
commit-bot@chromium.org | 06a3206 | 2014-05-05 21:35:09 +0000 | [diff] [blame] | 1835 | if (256 != alphaScale) { |
| 1836 | scale0 = SkAlphaMul(scale0, alphaScale); |
| 1837 | scale1 = SkAlphaMul(scale1, alphaScale); |
| 1838 | scale2 = SkAlphaMul(scale2, alphaScale); |
| 1839 | } |
| 1840 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1841 | dstC[i] = SkAlphaMulQ(fColors[0], scale0) + |
commit-bot@chromium.org | 06a3206 | 2014-05-05 21:35:09 +0000 | [diff] [blame] | 1842 | SkAlphaMulQ(fColors[1], scale1) + |
| 1843 | SkAlphaMulQ(fColors[2], scale2); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1844 | } |
| 1845 | } |
| 1846 | |
commit-bot@chromium.org | 0f10f7b | 2014-03-13 18:02:17 +0000 | [diff] [blame] | 1847 | #ifndef SK_IGNORE_TO_STRING |
robertphillips@google.com | 76f9e93 | 2013-01-15 20:17:47 +0000 | [diff] [blame] | 1848 | void SkTriColorShader::toString(SkString* str) const { |
| 1849 | str->append("SkTriColorShader: ("); |
| 1850 | |
| 1851 | this->INHERITED::toString(str); |
| 1852 | |
| 1853 | str->append(")"); |
| 1854 | } |
| 1855 | #endif |
| 1856 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1857 | void SkDraw::drawVertices(SkCanvas::VertexMode vmode, int count, |
| 1858 | const SkPoint vertices[], const SkPoint textures[], |
| 1859 | const SkColor colors[], SkXfermode* xmode, |
| 1860 | const uint16_t indices[], int indexCount, |
| 1861 | const SkPaint& paint) const { |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 1862 | SkASSERT(0 == count || vertices); |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 1863 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1864 | // abort early if there is nothing to draw |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 1865 | if (count < 3 || (indices && indexCount < 3) || fRC->isEmpty()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1866 | return; |
| 1867 | } |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 1868 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1869 | // transform out vertices into device coordinates |
| 1870 | SkAutoSTMalloc<16, SkPoint> storage(count); |
| 1871 | SkPoint* devVerts = storage.get(); |
| 1872 | fMatrix->mapPoints(devVerts, vertices, count); |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 1873 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1874 | /* |
| 1875 | We can draw the vertices in 1 of 4 ways: |
| 1876 | |
| 1877 | - solid color (no shader/texture[], no colors[]) |
| 1878 | - just colors (no shader/texture[], has colors[]) |
| 1879 | - just texture (has shader/texture[], no colors[]) |
| 1880 | - colors * texture (has shader/texture[], has colors[]) |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 1881 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1882 | Thus for texture drawing, we need both texture[] and a shader. |
| 1883 | */ |
| 1884 | |
reed | 8a21c9f | 2016-03-08 18:50:00 -0800 | [diff] [blame] | 1885 | auto triShader = sk_make_sp<SkTriColorShader>(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1886 | SkPaint p(paint); |
| 1887 | |
| 1888 | SkShader* shader = p.getShader(); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1889 | if (nullptr == shader) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1890 | // if we have no shader, we ignore the texture coordinates |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1891 | textures = nullptr; |
| 1892 | } else if (nullptr == textures) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1893 | // if we don't have texture coordinates, ignore the shader |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1894 | p.setShader(nullptr); |
| 1895 | shader = nullptr; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1896 | } |
| 1897 | |
| 1898 | // setup the custom shader (if needed) |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 1899 | if (colors) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1900 | if (nullptr == textures) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1901 | // just colors (no texture) |
reed | 8a21c9f | 2016-03-08 18:50:00 -0800 | [diff] [blame] | 1902 | p.setShader(triShader); |
| 1903 | shader = p.getShader(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1904 | } else { |
| 1905 | // colors * texture |
| 1906 | SkASSERT(shader); |
reed | cfb6bdf | 2016-03-29 11:32:50 -0700 | [diff] [blame] | 1907 | sk_sp<SkXfermode> xfer = xmode ? sk_ref_sp(xmode) |
| 1908 | : SkXfermode::Make(SkXfermode::kModulate_Mode); |
| 1909 | p.setShader(SkShader::MakeComposeShader(triShader, sk_ref_sp(shader), std::move(xfer))); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1910 | } |
| 1911 | } |
| 1912 | |
reed | 41e010c | 2015-06-09 12:16:53 -0700 | [diff] [blame] | 1913 | SkAutoBlitterChoose blitter(fDst, *fMatrix, p); |
commit-bot@chromium.org | 87fcd95 | 2014-04-23 19:10:51 +0000 | [diff] [blame] | 1914 | // Abort early if we failed to create a shader context. |
reed@google.com | ea03360 | 2012-12-14 13:13:55 +0000 | [diff] [blame] | 1915 | if (blitter->isNullBlitter()) { |
| 1916 | return; |
| 1917 | } |
| 1918 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1919 | // setup our state and function pointer for iterating triangles |
| 1920 | VertState state(count, indices, indexCount); |
| 1921 | VertState::Proc vertProc = state.chooseProc(vmode); |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 1922 | |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 1923 | if (textures || colors) { |
aleksandar.stojiljkovic | 88cb822 | 2016-03-08 11:18:21 -0800 | [diff] [blame] | 1924 | SkTriColorShader::TriColorShaderData verticesSetup = { vertices, colors, &state }; |
| 1925 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1926 | while (vertProc(&state)) { |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 1927 | if (textures) { |
commit-bot@chromium.org | 80116dc | 2014-05-06 17:16:03 +0000 | [diff] [blame] | 1928 | SkMatrix tempM; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1929 | if (texture_to_matrix(state, vertices, textures, &tempM)) { |
fmalita | d0c4e09 | 2016-02-22 17:19:04 -0800 | [diff] [blame] | 1930 | SkShader::ContextRec rec(p, *fMatrix, &tempM, |
| 1931 | SkBlitter::PreferredShaderDest(fDst.info())); |
commit-bot@chromium.org | 80116dc | 2014-05-06 17:16:03 +0000 | [diff] [blame] | 1932 | if (!blitter->resetShaderContext(rec)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1933 | continue; |
| 1934 | } |
| 1935 | } |
| 1936 | } |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 1937 | if (colors) { |
reed | 8a21c9f | 2016-03-08 18:50:00 -0800 | [diff] [blame] | 1938 | triShader->bindSetupData(&verticesSetup); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1939 | } |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 1940 | |
| 1941 | SkPoint tmp[] = { |
| 1942 | devVerts[state.f0], devVerts[state.f1], devVerts[state.f2] |
| 1943 | }; |
| 1944 | SkScan::FillTriangle(tmp, *fRC, blitter.get()); |
reed | 8a21c9f | 2016-03-08 18:50:00 -0800 | [diff] [blame] | 1945 | triShader->bindSetupData(NULL); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1946 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1947 | } else { |
commit-bot@chromium.org | 559a883 | 2014-05-30 10:08:22 +0000 | [diff] [blame] | 1948 | // no colors[] and no texture, stroke hairlines with paint's color. |
reed | 5dc6b7d | 2015-04-14 10:40:44 -0700 | [diff] [blame] | 1949 | SkScan::HairRCProc hairProc = ChooseHairProc(paint.isAntiAlias()); |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 1950 | const SkRasterClip& clip = *fRC; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1951 | while (vertProc(&state)) { |
reed | 5dc6b7d | 2015-04-14 10:40:44 -0700 | [diff] [blame] | 1952 | SkPoint array[] = { |
| 1953 | devVerts[state.f0], devVerts[state.f1], devVerts[state.f2], devVerts[state.f0] |
| 1954 | }; |
| 1955 | hairProc(array, 4, clip, blitter.get()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1956 | } |
| 1957 | } |
| 1958 | } |
| 1959 | |
reed@google.com | 0a0a236 | 2011-03-23 13:51:55 +0000 | [diff] [blame] | 1960 | /////////////////////////////////////////////////////////////////////////////// |
| 1961 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1962 | |
| 1963 | #ifdef SK_DEBUG |
| 1964 | |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 1965 | void SkDraw::validate() const { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1966 | SkASSERT(fMatrix != nullptr); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 1967 | SkASSERT(fRC != nullptr); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1968 | |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 1969 | const SkIRect& cr = fRC->getBounds(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1970 | SkIRect br; |
| 1971 | |
reed | 41e010c | 2015-06-09 12:16:53 -0700 | [diff] [blame] | 1972 | br.set(0, 0, fDst.width(), fDst.height()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1973 | SkASSERT(cr.isEmpty() || br.contains(cr)); |
| 1974 | } |
| 1975 | |
| 1976 | #endif |
| 1977 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1978 | //////////////////////////////////////////////////////////////////////////////////////////////// |
| 1979 | |
| 1980 | #include "SkPath.h" |
| 1981 | #include "SkDraw.h" |
| 1982 | #include "SkRegion.h" |
| 1983 | #include "SkBlitter.h" |
| 1984 | |
| 1985 | static bool compute_bounds(const SkPath& devPath, const SkIRect* clipBounds, |
reed | b07a94f | 2014-11-19 05:03:18 -0800 | [diff] [blame] | 1986 | const SkMaskFilter* filter, const SkMatrix* filterMatrix, |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1987 | SkIRect* bounds) { |
| 1988 | if (devPath.isEmpty()) { |
| 1989 | return false; |
| 1990 | } |
| 1991 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1992 | // init our bounds from the path |
reed | 11fa224 | 2015-03-13 06:08:28 -0700 | [diff] [blame] | 1993 | *bounds = devPath.getBounds().makeOutset(SK_ScalarHalf, SK_ScalarHalf).roundOut(); |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 1994 | |
tomhudson@google.com | 6db75fc | 2012-03-23 14:46:48 +0000 | [diff] [blame] | 1995 | SkIPoint margin = SkIPoint::Make(0, 0); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1996 | if (filter) { |
| 1997 | SkASSERT(filterMatrix); |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 1998 | |
bungeman@google.com | 5af16f8 | 2011-09-02 15:06:44 +0000 | [diff] [blame] | 1999 | SkMask srcM, dstM; |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 2000 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2001 | srcM.fBounds = *bounds; |
| 2002 | srcM.fFormat = SkMask::kA8_Format; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2003 | if (!filter->filterMask(&dstM, srcM, *filterMatrix, &margin)) { |
| 2004 | return false; |
| 2005 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2006 | } |
| 2007 | |
bungeman@google.com | 5af16f8 | 2011-09-02 15:06:44 +0000 | [diff] [blame] | 2008 | // (possibly) trim the bounds to reflect the clip |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2009 | // (plus whatever slop the filter needs) |
bungeman@google.com | 5af16f8 | 2011-09-02 15:06:44 +0000 | [diff] [blame] | 2010 | if (clipBounds) { |
reed@android.com | 3555591 | 2009-03-16 18:46:55 +0000 | [diff] [blame] | 2011 | // Ugh. Guard against gigantic margins from wacky filters. Without this |
| 2012 | // check we can request arbitrary amounts of slop beyond our visible |
| 2013 | // clip, and bring down the renderer (at least on finite RAM machines |
| 2014 | // like handsets, etc.). Need to balance this invented value between |
| 2015 | // quality of large filters like blurs, and the corresponding memory |
| 2016 | // requests. |
| 2017 | static const int MAX_MARGIN = 128; |
reed | 11fa224 | 2015-03-13 06:08:28 -0700 | [diff] [blame] | 2018 | if (!bounds->intersect(clipBounds->makeOutset(SkMin32(margin.fX, MAX_MARGIN), |
| 2019 | SkMin32(margin.fY, MAX_MARGIN)))) { |
bungeman@google.com | 5af16f8 | 2011-09-02 15:06:44 +0000 | [diff] [blame] | 2020 | return false; |
| 2021 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2022 | } |
| 2023 | |
| 2024 | return true; |
| 2025 | } |
| 2026 | |
bsalomon | 055e192 | 2016-05-06 07:22:58 -0700 | [diff] [blame^] | 2027 | static void draw_into_mask(const SkMask& mask, const SkPath& devPath, |
| 2028 | SkStrokeRec::InitStyle style) { |
reed | 41e010c | 2015-06-09 12:16:53 -0700 | [diff] [blame] | 2029 | SkDraw draw; |
| 2030 | if (!draw.fDst.reset(mask)) { |
| 2031 | return; |
| 2032 | } |
| 2033 | |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 2034 | SkRasterClip clip; |
| 2035 | SkMatrix matrix; |
| 2036 | SkPaint paint; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2037 | |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 2038 | clip.setRect(SkIRect::MakeWH(mask.fBounds.width(), mask.fBounds.height())); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2039 | matrix.setTranslate(-SkIntToScalar(mask.fBounds.fLeft), |
| 2040 | -SkIntToScalar(mask.fBounds.fTop)); |
| 2041 | |
reed@google.com | 045e62d | 2011-10-24 12:19:46 +0000 | [diff] [blame] | 2042 | draw.fRC = &clip; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2043 | draw.fMatrix = &matrix; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2044 | paint.setAntiAlias(true); |
bsalomon | 055e192 | 2016-05-06 07:22:58 -0700 | [diff] [blame^] | 2045 | switch (style) { |
| 2046 | case SkStrokeRec::kHairline_InitStyle: |
| 2047 | SkASSERT(!paint.getStrokeWidth()); |
| 2048 | paint.setStyle(SkPaint::kStroke_Style); |
| 2049 | break; |
| 2050 | case SkStrokeRec::kFill_InitStyle: |
| 2051 | SkASSERT(paint.getStyle() == SkPaint::kFill_Style); |
| 2052 | break; |
| 2053 | |
| 2054 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2055 | draw.drawPath(devPath, paint); |
| 2056 | } |
| 2057 | |
| 2058 | bool SkDraw::DrawToMask(const SkPath& devPath, const SkIRect* clipBounds, |
reed@google.com | 30711b7 | 2012-12-18 19:18:39 +0000 | [diff] [blame] | 2059 | const SkMaskFilter* filter, const SkMatrix* filterMatrix, |
junov@chromium.org | 2ac4ef5 | 2012-04-04 15:16:51 +0000 | [diff] [blame] | 2060 | SkMask* mask, SkMask::CreateMode mode, |
bsalomon | 055e192 | 2016-05-06 07:22:58 -0700 | [diff] [blame^] | 2061 | SkStrokeRec::InitStyle style) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2062 | if (SkMask::kJustRenderImage_CreateMode != mode) { |
| 2063 | if (!compute_bounds(devPath, clipBounds, filter, filterMatrix, &mask->fBounds)) |
| 2064 | return false; |
| 2065 | } |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 2066 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2067 | if (SkMask::kComputeBoundsAndRenderImage_CreateMode == mode) { |
| 2068 | mask->fFormat = SkMask::kA8_Format; |
| 2069 | mask->fRowBytes = mask->fBounds.width(); |
reed@android.com | 543ed93 | 2009-04-24 12:43:40 +0000 | [diff] [blame] | 2070 | size_t size = mask->computeImageSize(); |
| 2071 | if (0 == size) { |
| 2072 | // we're too big to allocate the mask, abort |
| 2073 | return false; |
| 2074 | } |
| 2075 | mask->fImage = SkMask::AllocImage(size); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2076 | memset(mask->fImage, 0, mask->computeImageSize()); |
| 2077 | } |
| 2078 | |
| 2079 | if (SkMask::kJustComputeBounds_CreateMode != mode) { |
junov@chromium.org | 2ac4ef5 | 2012-04-04 15:16:51 +0000 | [diff] [blame] | 2080 | draw_into_mask(*mask, devPath, style); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2081 | } |
reed@google.com | a76de3d | 2011-01-13 18:30:42 +0000 | [diff] [blame] | 2082 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2083 | return true; |
| 2084 | } |