epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 1 | |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 2 | /* |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 3 | * Copyright 2011 Google Inc. |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 4 | * |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 5 | * Use of this source code is governed by a BSD-style license that can be |
| 6 | * found in the LICENSE file. |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 7 | */ |
| 8 | |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 9 | |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 10 | #include "SkPDFDevice.h" |
| 11 | |
| 12 | #include "SkColor.h" |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 13 | #include "SkClipStack.h" |
reed@google.com | 8a85d0c | 2011-06-24 19:12:12 +0000 | [diff] [blame] | 14 | #include "SkData.h" |
vandebo@chromium.org | fb0b0ed | 2011-04-15 20:01:17 +0000 | [diff] [blame] | 15 | #include "SkDraw.h" |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 16 | #include "SkGlyphCache.h" |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 17 | #include "SkPaint.h" |
vandebo@chromium.org | a518086 | 2010-10-26 19:48:49 +0000 | [diff] [blame] | 18 | #include "SkPath.h" |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 19 | #include "SkPDFFont.h" |
vandebo@chromium.org | eb6c759 | 2010-10-26 19:54:45 +0000 | [diff] [blame] | 20 | #include "SkPDFFormXObject.h" |
vandebo@chromium.org | 77bcaa3 | 2011-04-15 20:57:37 +0000 | [diff] [blame] | 21 | #include "SkPDFGraphicState.h" |
| 22 | #include "SkPDFImage.h" |
vandebo@chromium.org | da912d6 | 2011-03-08 18:31:02 +0000 | [diff] [blame] | 23 | #include "SkPDFShader.h" |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 24 | #include "SkPDFStream.h" |
vandebo@chromium.org | 77bcaa3 | 2011-04-15 20:57:37 +0000 | [diff] [blame] | 25 | #include "SkPDFTypes.h" |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 26 | #include "SkPDFUtils.h" |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 27 | #include "SkRect.h" |
| 28 | #include "SkString.h" |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 29 | #include "SkTextFormatParams.h" |
| 30 | #include "SkTypeface.h" |
| 31 | #include "SkTypes.h" |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 32 | |
| 33 | // Utility functions |
| 34 | |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 35 | static void emit_pdf_color(SkColor color, SkWStream* result) { |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 36 | SkASSERT(SkColorGetA(color) == 0xFF); // We handle alpha elsewhere. |
| 37 | SkScalar colorMax = SkIntToScalar(0xFF); |
vandebo@chromium.org | 094316b | 2011-03-04 03:15:13 +0000 | [diff] [blame] | 38 | SkPDFScalar::Append( |
vandebo@chromium.org | cae5fba | 2011-03-28 19:03:50 +0000 | [diff] [blame] | 39 | SkScalarDiv(SkIntToScalar(SkColorGetR(color)), colorMax), result); |
| 40 | result->writeText(" "); |
vandebo@chromium.org | 094316b | 2011-03-04 03:15:13 +0000 | [diff] [blame] | 41 | SkPDFScalar::Append( |
vandebo@chromium.org | cae5fba | 2011-03-28 19:03:50 +0000 | [diff] [blame] | 42 | SkScalarDiv(SkIntToScalar(SkColorGetG(color)), colorMax), result); |
| 43 | result->writeText(" "); |
vandebo@chromium.org | 094316b | 2011-03-04 03:15:13 +0000 | [diff] [blame] | 44 | SkPDFScalar::Append( |
vandebo@chromium.org | cae5fba | 2011-03-28 19:03:50 +0000 | [diff] [blame] | 45 | SkScalarDiv(SkIntToScalar(SkColorGetB(color)), colorMax), result); |
| 46 | result->writeText(" "); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 47 | } |
| 48 | |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 49 | static SkPaint calculate_text_paint(const SkPaint& paint) { |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 50 | SkPaint result = paint; |
| 51 | if (result.isFakeBoldText()) { |
| 52 | SkScalar fakeBoldScale = SkScalarInterpFunc(result.getTextSize(), |
| 53 | kStdFakeBoldInterpKeys, |
| 54 | kStdFakeBoldInterpValues, |
| 55 | kStdFakeBoldInterpLength); |
| 56 | SkScalar width = SkScalarMul(result.getTextSize(), fakeBoldScale); |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 57 | if (result.getStyle() == SkPaint::kFill_Style) { |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 58 | result.setStyle(SkPaint::kStrokeAndFill_Style); |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 59 | } else { |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 60 | width += result.getStrokeWidth(); |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 61 | } |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 62 | result.setStrokeWidth(width); |
| 63 | } |
| 64 | return result; |
| 65 | } |
| 66 | |
| 67 | // Stolen from measure_text in SkDraw.cpp and then tweaked. |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 68 | static void align_text(SkDrawCacheProc glyphCacheProc, const SkPaint& paint, |
bungeman@google.com | 9a87cee | 2011-08-23 17:02:18 +0000 | [diff] [blame] | 69 | const uint16_t* glyphs, size_t len, |
| 70 | SkScalar* x, SkScalar* y) { |
| 71 | if (paint.getTextAlign() == SkPaint::kLeft_Align) { |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 72 | return; |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 73 | } |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 74 | |
| 75 | SkMatrix ident; |
| 76 | ident.reset(); |
| 77 | SkAutoGlyphCache autoCache(paint, &ident); |
| 78 | SkGlyphCache* cache = autoCache.getCache(); |
| 79 | |
ctguil@chromium.org | 9510ccc | 2011-07-27 00:10:51 +0000 | [diff] [blame] | 80 | const char* start = reinterpret_cast<const char*>(glyphs); |
| 81 | const char* stop = reinterpret_cast<const char*>(glyphs + len); |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 82 | SkFixed xAdv = 0, yAdv = 0; |
| 83 | |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 84 | // TODO(vandebo): This probably needs to take kerning into account. |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 85 | while (start < stop) { |
| 86 | const SkGlyph& glyph = glyphCacheProc(cache, &start, 0, 0); |
| 87 | xAdv += glyph.fAdvanceX; |
| 88 | yAdv += glyph.fAdvanceY; |
| 89 | }; |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 90 | if (paint.getTextAlign() == SkPaint::kLeft_Align) { |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 91 | return; |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 92 | } |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 93 | |
| 94 | SkScalar xAdj = SkFixedToScalar(xAdv); |
| 95 | SkScalar yAdj = SkFixedToScalar(yAdv); |
| 96 | if (paint.getTextAlign() == SkPaint::kCenter_Align) { |
| 97 | xAdj = SkScalarHalf(xAdj); |
| 98 | yAdj = SkScalarHalf(yAdj); |
| 99 | } |
| 100 | *x = *x - xAdj; |
| 101 | *y = *y - yAdj; |
| 102 | } |
| 103 | |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 104 | static void set_text_transform(SkScalar x, SkScalar y, SkScalar textSkewX, |
| 105 | SkWStream* content) { |
| 106 | // Flip the text about the x-axis to account for origin swap and include |
| 107 | // the passed parameters. |
| 108 | content->writeText("1 0 "); |
| 109 | SkPDFScalar::Append(0 - textSkewX, content); |
| 110 | content->writeText(" -1 "); |
| 111 | SkPDFScalar::Append(x, content); |
| 112 | content->writeText(" "); |
| 113 | SkPDFScalar::Append(y, content); |
| 114 | content->writeText(" Tm\n"); |
| 115 | } |
| 116 | |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 117 | // It is important to not confuse GraphicStateEntry with SkPDFGraphicState, the |
| 118 | // later being our representation of an object in the PDF file. |
| 119 | struct GraphicStateEntry { |
| 120 | GraphicStateEntry(); |
| 121 | |
| 122 | // Compare the fields we care about when setting up a new content entry. |
| 123 | bool compareInitialState(const GraphicStateEntry& b); |
| 124 | |
| 125 | SkMatrix fMatrix; |
| 126 | // We can't do set operations on Paths, though PDF natively supports |
| 127 | // intersect. If the clip stack does anything other than intersect, |
| 128 | // we have to fall back to the region. Treat fClipStack as authoritative. |
| 129 | // See http://code.google.com/p/skia/issues/detail?id=221 |
| 130 | SkClipStack fClipStack; |
| 131 | SkRegion fClipRegion; |
| 132 | |
| 133 | // When emitting the content entry, we will ensure the graphic state |
| 134 | // is set to these values first. |
| 135 | SkColor fColor; |
| 136 | SkScalar fTextScaleX; // Zero means we don't care what the value is. |
| 137 | SkPaint::Style fTextFill; // Only if TextScaleX is non-zero. |
| 138 | int fShaderIndex; |
| 139 | int fGraphicStateIndex; |
| 140 | |
| 141 | // We may change the font (i.e. for Type1 support) within a |
| 142 | // ContentEntry. This is the one currently in effect, or NULL if none. |
| 143 | SkPDFFont* fFont; |
| 144 | // In PDF, text size has no default value. It is only valid if fFont is |
| 145 | // not NULL. |
| 146 | SkScalar fTextSize; |
| 147 | }; |
| 148 | |
| 149 | GraphicStateEntry::GraphicStateEntry() : fColor(SK_ColorBLACK), |
| 150 | fTextScaleX(SK_Scalar1), |
| 151 | fTextFill(SkPaint::kFill_Style), |
| 152 | fShaderIndex(-1), |
| 153 | fGraphicStateIndex(-1), |
| 154 | fFont(NULL), |
| 155 | fTextSize(SK_ScalarNaN) { |
| 156 | fMatrix.reset(); |
| 157 | } |
| 158 | |
| 159 | bool GraphicStateEntry::compareInitialState(const GraphicStateEntry& b) { |
| 160 | return fColor == b.fColor && |
| 161 | fShaderIndex == b.fShaderIndex && |
| 162 | fGraphicStateIndex == b.fGraphicStateIndex && |
| 163 | fMatrix == b.fMatrix && |
| 164 | fClipStack == b.fClipStack && |
| 165 | (fTextScaleX == 0 || |
| 166 | b.fTextScaleX == 0 || |
| 167 | (fTextScaleX == b.fTextScaleX && fTextFill == b.fTextFill)); |
| 168 | } |
| 169 | |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 170 | class GraphicStackState { |
| 171 | public: |
| 172 | GraphicStackState(const SkClipStack& existingClipStack, |
| 173 | const SkRegion& existingClipRegion, |
| 174 | SkWStream* contentStream) |
| 175 | : fStackDepth(0), |
| 176 | fContentStream(contentStream) { |
| 177 | fEntries[0].fClipStack = existingClipStack; |
| 178 | fEntries[0].fClipRegion = existingClipRegion; |
| 179 | } |
| 180 | |
| 181 | void updateClip(const SkClipStack& clipStack, const SkRegion& clipRegion, |
vandebo@chromium.org | 663515b | 2012-01-05 18:45:27 +0000 | [diff] [blame] | 182 | const SkPoint& translation); |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 183 | void updateMatrix(const SkMatrix& matrix); |
| 184 | void updateDrawingState(const GraphicStateEntry& state); |
| 185 | |
| 186 | void drainStack(); |
| 187 | |
| 188 | private: |
| 189 | void push(); |
| 190 | void pop(); |
| 191 | GraphicStateEntry* currentEntry() { return &fEntries[fStackDepth]; } |
| 192 | |
| 193 | // Conservative limit on save depth, see impl. notes in PDF 1.4 spec. |
| 194 | static const int kMaxStackDepth = 12; |
| 195 | GraphicStateEntry fEntries[kMaxStackDepth + 1]; |
| 196 | int fStackDepth; |
| 197 | SkWStream* fContentStream; |
| 198 | }; |
| 199 | |
| 200 | void GraphicStackState::drainStack() { |
| 201 | while (fStackDepth) { |
| 202 | pop(); |
| 203 | } |
| 204 | } |
| 205 | |
| 206 | void GraphicStackState::push() { |
| 207 | SkASSERT(fStackDepth < kMaxStackDepth); |
| 208 | fContentStream->writeText("q\n"); |
| 209 | fStackDepth++; |
| 210 | fEntries[fStackDepth] = fEntries[fStackDepth - 1]; |
| 211 | } |
| 212 | |
| 213 | void GraphicStackState::pop() { |
| 214 | SkASSERT(fStackDepth > 0); |
| 215 | fContentStream->writeText("Q\n"); |
| 216 | fStackDepth--; |
| 217 | } |
| 218 | |
| 219 | // This function initializes iter to be an interator on the "stack" argument |
| 220 | // and then skips over the leading entries as specified in prefix. It requires |
| 221 | // and asserts that "prefix" will be a prefix to "stack." |
| 222 | static void skip_clip_stack_prefix(const SkClipStack& prefix, |
| 223 | const SkClipStack& stack, |
| 224 | SkClipStack::B2FIter* iter) { |
| 225 | SkClipStack::B2FIter prefixIter(prefix); |
| 226 | iter->reset(stack); |
| 227 | |
| 228 | const SkClipStack::B2FIter::Clip* prefixEntry; |
| 229 | const SkClipStack::B2FIter::Clip* iterEntry; |
| 230 | |
vandebo@chromium.org | 8887ede | 2011-05-25 01:27:52 +0000 | [diff] [blame] | 231 | int count = 0; |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 232 | for (prefixEntry = prefixIter.next(); prefixEntry; |
vandebo@chromium.org | 8887ede | 2011-05-25 01:27:52 +0000 | [diff] [blame] | 233 | prefixEntry = prefixIter.next(), count++) { |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 234 | iterEntry = iter->next(); |
| 235 | SkASSERT(iterEntry); |
vandebo@chromium.org | 8887ede | 2011-05-25 01:27:52 +0000 | [diff] [blame] | 236 | // Because of SkClipStack does internal intersection, the last clip |
| 237 | // entry may differ. |
ctguil@chromium.org | 9510ccc | 2011-07-27 00:10:51 +0000 | [diff] [blame] | 238 | if (*prefixEntry != *iterEntry) { |
vandebo@chromium.org | 8887ede | 2011-05-25 01:27:52 +0000 | [diff] [blame] | 239 | SkASSERT(prefixEntry->fOp == SkRegion::kIntersect_Op); |
| 240 | SkASSERT(iterEntry->fOp == SkRegion::kIntersect_Op); |
| 241 | SkASSERT((iterEntry->fRect == NULL) == |
| 242 | (prefixEntry->fRect == NULL)); |
| 243 | SkASSERT((iterEntry->fPath == NULL) == |
| 244 | (prefixEntry->fPath == NULL)); |
| 245 | // We need to back up the iterator by one but don't have that |
| 246 | // function, so reset and go forward by one less. |
| 247 | iter->reset(stack); |
| 248 | for (int i = 0; i < count; i++) { |
| 249 | iter->next(); |
| 250 | } |
| 251 | prefixEntry = prefixIter.next(); |
| 252 | break; |
| 253 | } |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 254 | } |
| 255 | |
| 256 | SkASSERT(prefixEntry == NULL); |
| 257 | } |
| 258 | |
| 259 | static void emit_clip(SkPath* clipPath, SkRect* clipRect, |
| 260 | SkWStream* contentStream) { |
| 261 | SkASSERT(clipPath || clipRect); |
| 262 | |
| 263 | SkPath::FillType clipFill; |
| 264 | if (clipPath) { |
| 265 | SkPDFUtils::EmitPath(*clipPath, contentStream); |
| 266 | clipFill = clipPath->getFillType(); |
vandebo@chromium.org | 3e7b280 | 2011-06-27 18:12:31 +0000 | [diff] [blame] | 267 | } else { |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 268 | SkPDFUtils::AppendRectangle(*clipRect, contentStream); |
| 269 | clipFill = SkPath::kWinding_FillType; |
| 270 | } |
| 271 | |
| 272 | NOT_IMPLEMENTED(clipFill == SkPath::kInverseEvenOdd_FillType, false); |
| 273 | NOT_IMPLEMENTED(clipFill == SkPath::kInverseWinding_FillType, false); |
| 274 | if (clipFill == SkPath::kEvenOdd_FillType) { |
| 275 | contentStream->writeText("W* n\n"); |
| 276 | } else { |
| 277 | contentStream->writeText("W n\n"); |
| 278 | } |
| 279 | } |
| 280 | |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 281 | // TODO(vandebo): Take advantage of SkClipStack::getSaveCount(), the PDF |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 282 | // graphic state stack, and the fact that we can know all the clips used |
| 283 | // on the page to optimize this. |
| 284 | void GraphicStackState::updateClip(const SkClipStack& clipStack, |
| 285 | const SkRegion& clipRegion, |
vandebo@chromium.org | 663515b | 2012-01-05 18:45:27 +0000 | [diff] [blame] | 286 | const SkPoint& translation) { |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 287 | if (clipStack == currentEntry()->fClipStack) { |
| 288 | return; |
| 289 | } |
| 290 | |
| 291 | while (fStackDepth > 0) { |
| 292 | pop(); |
| 293 | if (clipStack == currentEntry()->fClipStack) { |
| 294 | return; |
| 295 | } |
| 296 | } |
| 297 | push(); |
| 298 | |
| 299 | // gsState->initialEntry()->fClipStack/Region specifies the clip that has |
| 300 | // already been applied. (If this is a top level device, then it specifies |
| 301 | // a clip to the content area. If this is a layer, then it specifies |
| 302 | // the clip in effect when the layer was created.) There's no need to |
| 303 | // reapply that clip; SKCanvas's SkDrawIter will draw anything outside the |
| 304 | // initial clip on the parent layer. (This means there's a bug if the user |
| 305 | // expands the clip and then uses any xfer mode that uses dst: |
| 306 | // http://code.google.com/p/skia/issues/detail?id=228 ) |
| 307 | SkClipStack::B2FIter iter; |
| 308 | skip_clip_stack_prefix(fEntries[0].fClipStack, clipStack, &iter); |
| 309 | |
| 310 | // If the clip stack does anything other than intersect or if it uses |
| 311 | // an inverse fill type, we have to fall back to the clip region. |
| 312 | bool needRegion = false; |
| 313 | const SkClipStack::B2FIter::Clip* clipEntry; |
| 314 | for (clipEntry = iter.next(); clipEntry; clipEntry = iter.next()) { |
| 315 | if (clipEntry->fOp != SkRegion::kIntersect_Op || |
| 316 | (clipEntry->fPath && clipEntry->fPath->isInverseFillType())) { |
| 317 | needRegion = true; |
| 318 | break; |
| 319 | } |
| 320 | } |
| 321 | |
| 322 | if (needRegion) { |
| 323 | SkPath clipPath; |
| 324 | SkAssertResult(clipRegion.getBoundaryPath(&clipPath)); |
| 325 | emit_clip(&clipPath, NULL, fContentStream); |
| 326 | } else { |
| 327 | skip_clip_stack_prefix(fEntries[0].fClipStack, clipStack, &iter); |
| 328 | SkMatrix transform; |
| 329 | transform.setTranslate(translation.fX, translation.fY); |
| 330 | const SkClipStack::B2FIter::Clip* clipEntry; |
| 331 | for (clipEntry = iter.next(); clipEntry; clipEntry = iter.next()) { |
| 332 | SkASSERT(clipEntry->fOp == SkRegion::kIntersect_Op); |
| 333 | if (clipEntry->fRect) { |
| 334 | SkRect translatedClip; |
| 335 | transform.mapRect(&translatedClip, *clipEntry->fRect); |
| 336 | emit_clip(NULL, &translatedClip, fContentStream); |
| 337 | } else if (clipEntry->fPath) { |
| 338 | SkPath translatedPath; |
| 339 | clipEntry->fPath->transform(transform, &translatedPath); |
| 340 | emit_clip(&translatedPath, NULL, fContentStream); |
| 341 | } else { |
| 342 | SkASSERT(false); |
| 343 | } |
| 344 | } |
| 345 | } |
| 346 | currentEntry()->fClipStack = clipStack; |
| 347 | currentEntry()->fClipRegion = clipRegion; |
| 348 | } |
| 349 | |
| 350 | void GraphicStackState::updateMatrix(const SkMatrix& matrix) { |
| 351 | if (matrix == currentEntry()->fMatrix) { |
| 352 | return; |
| 353 | } |
| 354 | |
| 355 | if (currentEntry()->fMatrix.getType() != SkMatrix::kIdentity_Mask) { |
| 356 | SkASSERT(fStackDepth > 0); |
| 357 | SkASSERT(fEntries[fStackDepth].fClipStack == |
| 358 | fEntries[fStackDepth -1].fClipStack); |
| 359 | pop(); |
| 360 | |
| 361 | SkASSERT(currentEntry()->fMatrix.getType() == SkMatrix::kIdentity_Mask); |
| 362 | } |
| 363 | if (matrix.getType() == SkMatrix::kIdentity_Mask) { |
| 364 | return; |
| 365 | } |
| 366 | |
| 367 | push(); |
| 368 | SkPDFUtils::AppendTransform(matrix, fContentStream); |
| 369 | currentEntry()->fMatrix = matrix; |
| 370 | } |
| 371 | |
| 372 | void GraphicStackState::updateDrawingState(const GraphicStateEntry& state) { |
| 373 | // PDF treats a shader as a color, so we only set one or the other. |
| 374 | if (state.fShaderIndex >= 0) { |
| 375 | if (state.fShaderIndex != currentEntry()->fShaderIndex) { |
| 376 | fContentStream->writeText("/Pattern CS /Pattern cs /P"); |
| 377 | fContentStream->writeDecAsText(state.fShaderIndex); |
| 378 | fContentStream->writeText(" SCN /P"); |
| 379 | fContentStream->writeDecAsText(state.fShaderIndex); |
| 380 | fContentStream->writeText(" scn\n"); |
| 381 | currentEntry()->fShaderIndex = state.fShaderIndex; |
| 382 | } |
| 383 | } else { |
| 384 | if (state.fColor != currentEntry()->fColor || |
| 385 | currentEntry()->fShaderIndex >= 0) { |
| 386 | emit_pdf_color(state.fColor, fContentStream); |
| 387 | fContentStream->writeText("RG "); |
| 388 | emit_pdf_color(state.fColor, fContentStream); |
| 389 | fContentStream->writeText("rg\n"); |
| 390 | currentEntry()->fColor = state.fColor; |
| 391 | currentEntry()->fShaderIndex = -1; |
| 392 | } |
| 393 | } |
| 394 | |
| 395 | if (state.fGraphicStateIndex != currentEntry()->fGraphicStateIndex) { |
vandebo@chromium.org | 6112c21 | 2011-05-13 03:50:38 +0000 | [diff] [blame] | 396 | SkPDFUtils::ApplyGraphicState(state.fGraphicStateIndex, fContentStream); |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 397 | currentEntry()->fGraphicStateIndex = state.fGraphicStateIndex; |
| 398 | } |
| 399 | |
| 400 | if (state.fTextScaleX) { |
| 401 | if (state.fTextScaleX != currentEntry()->fTextScaleX) { |
| 402 | SkScalar pdfScale = SkScalarMul(state.fTextScaleX, |
| 403 | SkIntToScalar(100)); |
| 404 | SkPDFScalar::Append(pdfScale, fContentStream); |
| 405 | fContentStream->writeText(" Tz\n"); |
| 406 | currentEntry()->fTextScaleX = state.fTextScaleX; |
| 407 | } |
| 408 | if (state.fTextFill != currentEntry()->fTextFill) { |
| 409 | SK_COMPILE_ASSERT(SkPaint::kFill_Style == 0, enum_must_match_value); |
| 410 | SK_COMPILE_ASSERT(SkPaint::kStroke_Style == 1, |
| 411 | enum_must_match_value); |
| 412 | SK_COMPILE_ASSERT(SkPaint::kStrokeAndFill_Style == 2, |
| 413 | enum_must_match_value); |
| 414 | fContentStream->writeDecAsText(state.fTextFill); |
| 415 | fContentStream->writeText(" Tr\n"); |
| 416 | currentEntry()->fTextFill = state.fTextFill; |
| 417 | } |
| 418 | } |
| 419 | } |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 420 | |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 421 | SkDevice* SkPDFDevice::onCreateCompatibleDevice(SkBitmap::Config config, |
| 422 | int width, int height, |
bsalomon@google.com | e97f085 | 2011-06-17 13:10:25 +0000 | [diff] [blame] | 423 | bool isOpaque, |
| 424 | Usage usage) { |
| 425 | SkMatrix initialTransform; |
| 426 | initialTransform.reset(); |
| 427 | SkISize size = SkISize::Make(width, height); |
| 428 | return SkNEW_ARGS(SkPDFDevice, (size, size, initialTransform)); |
| 429 | } |
| 430 | |
| 431 | |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 432 | struct ContentEntry { |
| 433 | GraphicStateEntry fState; |
| 434 | SkDynamicMemoryWStream fContent; |
| 435 | SkTScopedPtr<ContentEntry> fNext; |
| 436 | }; |
| 437 | |
| 438 | // A helper class to automatically finish a ContentEntry at the end of a |
| 439 | // drawing method and maintain the state needed between set up and finish. |
vandebo@chromium.org | 13d14a9 | 2011-05-24 23:12:41 +0000 | [diff] [blame] | 440 | class ScopedContentEntry { |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 441 | public: |
vandebo@chromium.org | 13d14a9 | 2011-05-24 23:12:41 +0000 | [diff] [blame] | 442 | ScopedContentEntry(SkPDFDevice* device, const SkDraw& draw, |
| 443 | const SkPaint& paint, bool hasText = false) |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 444 | : fDevice(device), |
| 445 | fContentEntry(NULL), |
| 446 | fXfermode(SkXfermode::kSrcOver_Mode) { |
| 447 | init(draw.fClipStack, *draw.fClip, *draw.fMatrix, paint, hasText); |
| 448 | } |
vandebo@chromium.org | 13d14a9 | 2011-05-24 23:12:41 +0000 | [diff] [blame] | 449 | ScopedContentEntry(SkPDFDevice* device, const SkClipStack* clipStack, |
| 450 | const SkRegion& clipRegion, const SkMatrix& matrix, |
| 451 | const SkPaint& paint, bool hasText = false) |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 452 | : fDevice(device), |
| 453 | fContentEntry(NULL), |
| 454 | fXfermode(SkXfermode::kSrcOver_Mode) { |
| 455 | init(clipStack, clipRegion, matrix, paint, hasText); |
| 456 | } |
| 457 | |
vandebo@chromium.org | 13d14a9 | 2011-05-24 23:12:41 +0000 | [diff] [blame] | 458 | ~ScopedContentEntry() { |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 459 | if (fContentEntry) { |
| 460 | fDevice->finishContentEntry(fXfermode, fDstFormXObject.get()); |
| 461 | } |
| 462 | } |
| 463 | |
| 464 | ContentEntry* entry() { return fContentEntry; } |
| 465 | private: |
| 466 | SkPDFDevice* fDevice; |
| 467 | ContentEntry* fContentEntry; |
| 468 | SkXfermode::Mode fXfermode; |
| 469 | SkRefPtr<SkPDFFormXObject> fDstFormXObject; |
| 470 | |
| 471 | void init(const SkClipStack* clipStack, const SkRegion& clipRegion, |
| 472 | const SkMatrix& matrix, const SkPaint& paint, bool hasText) { |
| 473 | if (paint.getXfermode()) { |
| 474 | paint.getXfermode()->asMode(&fXfermode); |
| 475 | } |
| 476 | fContentEntry = fDevice->setUpContentEntry(clipStack, clipRegion, |
| 477 | matrix, paint, hasText, |
| 478 | &fDstFormXObject); |
| 479 | } |
| 480 | }; |
| 481 | |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 482 | //////////////////////////////////////////////////////////////////////////////// |
| 483 | |
ctguil@chromium.org | 1526129 | 2011-04-29 17:54:16 +0000 | [diff] [blame] | 484 | static inline SkBitmap makeContentBitmap(const SkISize& contentSize, |
vandebo@chromium.org | a0c7edb | 2011-05-09 07:58:08 +0000 | [diff] [blame] | 485 | const SkMatrix* initialTransform) { |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 486 | SkBitmap bitmap; |
vandebo@chromium.org | a0c7edb | 2011-05-09 07:58:08 +0000 | [diff] [blame] | 487 | if (initialTransform) { |
| 488 | // Compute the size of the drawing area. |
| 489 | SkVector drawingSize; |
| 490 | SkMatrix inverse; |
vandebo@chromium.org | 663515b | 2012-01-05 18:45:27 +0000 | [diff] [blame] | 491 | drawingSize.set(SkIntToScalar(contentSize.fWidth), |
| 492 | SkIntToScalar(contentSize.fHeight)); |
vandebo@chromium.org | a0c7edb | 2011-05-09 07:58:08 +0000 | [diff] [blame] | 493 | initialTransform->invert(&inverse); |
| 494 | inverse.mapVectors(&drawingSize, 1); |
| 495 | SkISize size = SkSize::Make(drawingSize.fX, drawingSize.fY).toRound(); |
| 496 | bitmap.setConfig(SkBitmap::kNo_Config, abs(size.fWidth), |
| 497 | abs(size.fHeight)); |
| 498 | } else { |
| 499 | bitmap.setConfig(SkBitmap::kNo_Config, abs(contentSize.fWidth), |
| 500 | abs(contentSize.fHeight)); |
| 501 | } |
| 502 | |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 503 | return bitmap; |
| 504 | } |
| 505 | |
vandebo@chromium.org | 663515b | 2012-01-05 18:45:27 +0000 | [diff] [blame] | 506 | // TODO(vandebo) change pageSize to SkSize. |
ctguil@chromium.org | 1526129 | 2011-04-29 17:54:16 +0000 | [diff] [blame] | 507 | SkPDFDevice::SkPDFDevice(const SkISize& pageSize, const SkISize& contentSize, |
vandebo@chromium.org | 75f97e4 | 2011-04-11 23:24:18 +0000 | [diff] [blame] | 508 | const SkMatrix& initialTransform) |
reed@google.com | af951c9 | 2011-06-16 19:10:39 +0000 | [diff] [blame] | 509 | : SkDevice(makeContentBitmap(contentSize, &initialTransform)), |
ctguil@chromium.org | 1526129 | 2011-04-29 17:54:16 +0000 | [diff] [blame] | 510 | fPageSize(pageSize), |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 511 | fContentSize(contentSize), |
ctguil@chromium.org | 8dcf74f | 2011-07-12 21:56:27 +0000 | [diff] [blame] | 512 | fLastContentEntry(NULL), |
| 513 | fLastMarginContentEntry(NULL) { |
vandebo@chromium.org | 77bcaa3 | 2011-04-15 20:57:37 +0000 | [diff] [blame] | 514 | // Skia generally uses the top left as the origin but PDF natively has the |
vandebo@chromium.org | a0c7edb | 2011-05-09 07:58:08 +0000 | [diff] [blame] | 515 | // origin at the bottom left. This matrix corrects for that. But that only |
| 516 | // needs to be done once, we don't do it when layering. |
vandebo@chromium.org | 663515b | 2012-01-05 18:45:27 +0000 | [diff] [blame] | 517 | fInitialTransform.setTranslate(0, SkIntToScalar(pageSize.fHeight)); |
| 518 | fInitialTransform.preScale(SK_Scalar1, -SK_Scalar1); |
vandebo@chromium.org | 77bcaa3 | 2011-04-15 20:57:37 +0000 | [diff] [blame] | 519 | fInitialTransform.preConcat(initialTransform); |
| 520 | |
vandebo@chromium.org | a0c7edb | 2011-05-09 07:58:08 +0000 | [diff] [blame] | 521 | SkIRect existingClip = SkIRect::MakeWH(this->width(), this->height()); |
vandebo@chromium.org | a0c7edb | 2011-05-09 07:58:08 +0000 | [diff] [blame] | 522 | fExistingClipRegion.setRect(existingClip); |
| 523 | |
| 524 | this->init(); |
| 525 | } |
| 526 | |
vandebo@chromium.org | 663515b | 2012-01-05 18:45:27 +0000 | [diff] [blame] | 527 | // TODO(vandebo) change layerSize to SkSize. |
vandebo@chromium.org | a0c7edb | 2011-05-09 07:58:08 +0000 | [diff] [blame] | 528 | SkPDFDevice::SkPDFDevice(const SkISize& layerSize, |
| 529 | const SkClipStack& existingClipStack, |
| 530 | const SkRegion& existingClipRegion) |
reed@google.com | af951c9 | 2011-06-16 19:10:39 +0000 | [diff] [blame] | 531 | : SkDevice(makeContentBitmap(layerSize, NULL)), |
vandebo@chromium.org | a0c7edb | 2011-05-09 07:58:08 +0000 | [diff] [blame] | 532 | fPageSize(layerSize), |
| 533 | fContentSize(layerSize), |
| 534 | fExistingClipStack(existingClipStack), |
| 535 | fExistingClipRegion(existingClipRegion), |
ctguil@chromium.org | 8dcf74f | 2011-07-12 21:56:27 +0000 | [diff] [blame] | 536 | fLastContentEntry(NULL), |
| 537 | fLastMarginContentEntry(NULL) { |
vandebo@chromium.org | a0c7edb | 2011-05-09 07:58:08 +0000 | [diff] [blame] | 538 | fInitialTransform.reset(); |
vandebo@chromium.org | 77bcaa3 | 2011-04-15 20:57:37 +0000 | [diff] [blame] | 539 | this->init(); |
| 540 | } |
| 541 | |
| 542 | SkPDFDevice::~SkPDFDevice() { |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 543 | this->cleanUp(true); |
vandebo@chromium.org | 77bcaa3 | 2011-04-15 20:57:37 +0000 | [diff] [blame] | 544 | } |
| 545 | |
| 546 | void SkPDFDevice::init() { |
vandebo@chromium.org | 77bcaa3 | 2011-04-15 20:57:37 +0000 | [diff] [blame] | 547 | fResourceDict = NULL; |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 548 | fContentEntries.reset(); |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 549 | fLastContentEntry = NULL; |
ctguil@chromium.org | 8dcf74f | 2011-07-12 21:56:27 +0000 | [diff] [blame] | 550 | fMarginContentEntries.reset(); |
| 551 | fLastMarginContentEntry = NULL; |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 552 | fDrawingArea = kContent_DrawingArea; |
| 553 | if (fFontGlyphUsage == NULL) { |
| 554 | fFontGlyphUsage.reset(new SkPDFGlyphSetMap()); |
| 555 | } |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 556 | } |
| 557 | |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 558 | void SkPDFDevice::cleanUp(bool clearFontUsage) { |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 559 | fGraphicStateResources.unrefAll(); |
| 560 | fXObjectResources.unrefAll(); |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 561 | fFontResources.unrefAll(); |
vandebo@chromium.org | da912d6 | 2011-03-08 18:31:02 +0000 | [diff] [blame] | 562 | fShaderResources.unrefAll(); |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 563 | if (clearFontUsage) { |
| 564 | fFontGlyphUsage->reset(); |
| 565 | } |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 566 | } |
| 567 | |
reed@google.com | 982cb87 | 2011-12-07 18:34:08 +0000 | [diff] [blame] | 568 | uint32_t SkPDFDevice::getDeviceCapabilities() { |
| 569 | return kVector_Capability; |
| 570 | } |
| 571 | |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 572 | void SkPDFDevice::clear(SkColor color) { |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 573 | this->cleanUp(true); |
vandebo@chromium.org | 77bcaa3 | 2011-04-15 20:57:37 +0000 | [diff] [blame] | 574 | this->init(); |
| 575 | |
| 576 | SkPaint paint; |
| 577 | paint.setColor(color); |
| 578 | paint.setStyle(SkPaint::kFill_Style); |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 579 | SkMatrix identity; |
| 580 | identity.reset(); |
vandebo@chromium.org | 13d14a9 | 2011-05-24 23:12:41 +0000 | [diff] [blame] | 581 | ScopedContentEntry content(this, &fExistingClipStack, fExistingClipRegion, |
| 582 | identity, paint); |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 583 | internalDrawPaint(paint, content.entry()); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 584 | } |
| 585 | |
| 586 | void SkPDFDevice::drawPaint(const SkDraw& d, const SkPaint& paint) { |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 587 | SkPaint newPaint = paint; |
| 588 | newPaint.setStyle(SkPaint::kFill_Style); |
vandebo@chromium.org | 13d14a9 | 2011-05-24 23:12:41 +0000 | [diff] [blame] | 589 | ScopedContentEntry content(this, d, newPaint); |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 590 | internalDrawPaint(newPaint, content.entry()); |
vandebo@chromium.org | 77bcaa3 | 2011-04-15 20:57:37 +0000 | [diff] [blame] | 591 | } |
| 592 | |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 593 | void SkPDFDevice::internalDrawPaint(const SkPaint& paint, |
| 594 | ContentEntry* contentEntry) { |
| 595 | if (!contentEntry) { |
| 596 | return; |
| 597 | } |
vandebo@chromium.org | 77bcaa3 | 2011-04-15 20:57:37 +0000 | [diff] [blame] | 598 | SkRect bbox = SkRect::MakeWH(SkIntToScalar(this->width()), |
| 599 | SkIntToScalar(this->height())); |
| 600 | SkMatrix totalTransform = fInitialTransform; |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 601 | totalTransform.preConcat(contentEntry->fState.fMatrix); |
vandebo@chromium.org | 77bcaa3 | 2011-04-15 20:57:37 +0000 | [diff] [blame] | 602 | SkMatrix inverse; |
| 603 | inverse.reset(); |
| 604 | totalTransform.invert(&inverse); |
| 605 | inverse.mapRect(&bbox); |
| 606 | |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 607 | SkPDFUtils::AppendRectangle(bbox, &contentEntry->fContent); |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 608 | SkPDFUtils::PaintPath(paint.getStyle(), SkPath::kWinding_FillType, |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 609 | &contentEntry->fContent); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 610 | } |
| 611 | |
| 612 | void SkPDFDevice::drawPoints(const SkDraw& d, SkCanvas::PointMode mode, |
| 613 | size_t count, const SkPoint* points, |
vandebo@chromium.org | 25adce8 | 2011-05-09 08:05:01 +0000 | [diff] [blame] | 614 | const SkPaint& passedPaint) { |
| 615 | if (count == 0) { |
| 616 | return; |
| 617 | } |
| 618 | |
vandebo@chromium.org | ff39032 | 2011-05-17 18:58:44 +0000 | [diff] [blame] | 619 | // SkDraw::drawPoints converts to multiple calls to fDevice->drawPath. |
| 620 | // We only use this when there's a path effect because of the overhead |
| 621 | // of multiple calls to setUpContentEntry it causes. |
| 622 | if (passedPaint.getPathEffect()) { |
| 623 | if (d.fClip->isEmpty()) { |
| 624 | return; |
| 625 | } |
| 626 | SkDraw pointDraw(d); |
| 627 | pointDraw.fDevice = this; |
| 628 | pointDraw.drawPoints(mode, count, points, passedPaint, true); |
| 629 | return; |
| 630 | } |
| 631 | |
vandebo@chromium.org | 25adce8 | 2011-05-09 08:05:01 +0000 | [diff] [blame] | 632 | const SkPaint* paint = &passedPaint; |
| 633 | SkPaint modifiedPaint; |
| 634 | |
| 635 | if (mode == SkCanvas::kPoints_PointMode && |
| 636 | paint->getStrokeCap() != SkPaint::kRound_Cap) { |
| 637 | modifiedPaint = *paint; |
| 638 | paint = &modifiedPaint; |
| 639 | if (paint->getStrokeWidth()) { |
| 640 | // PDF won't draw a single point with square/butt caps because the |
| 641 | // orientation is ambiguous. Draw a rectangle instead. |
| 642 | modifiedPaint.setStyle(SkPaint::kFill_Style); |
| 643 | SkScalar strokeWidth = paint->getStrokeWidth(); |
| 644 | SkScalar halfStroke = SkScalarHalf(strokeWidth); |
| 645 | for (size_t i = 0; i < count; i++) { |
| 646 | SkRect r = SkRect::MakeXYWH(points[i].fX, points[i].fY, 0, 0); |
| 647 | r.inset(-halfStroke, -halfStroke); |
| 648 | drawRect(d, r, modifiedPaint); |
| 649 | } |
| 650 | return; |
| 651 | } else { |
| 652 | modifiedPaint.setStrokeCap(SkPaint::kRound_Cap); |
| 653 | } |
| 654 | } |
| 655 | |
vandebo@chromium.org | 13d14a9 | 2011-05-24 23:12:41 +0000 | [diff] [blame] | 656 | ScopedContentEntry content(this, d, *paint); |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 657 | if (!content.entry()) { |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 658 | return; |
vandebo@chromium.org | fb0b0ed | 2011-04-15 20:01:17 +0000 | [diff] [blame] | 659 | } |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 660 | |
| 661 | switch (mode) { |
| 662 | case SkCanvas::kPolygon_PointMode: |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 663 | SkPDFUtils::MoveTo(points[0].fX, points[0].fY, |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 664 | &content.entry()->fContent); |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 665 | for (size_t i = 1; i < count; i++) { |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 666 | SkPDFUtils::AppendLine(points[i].fX, points[i].fY, |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 667 | &content.entry()->fContent); |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 668 | } |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 669 | SkPDFUtils::StrokePath(&content.entry()->fContent); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 670 | break; |
| 671 | case SkCanvas::kLines_PointMode: |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 672 | for (size_t i = 0; i < count/2; i++) { |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 673 | SkPDFUtils::MoveTo(points[i * 2].fX, points[i * 2].fY, |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 674 | &content.entry()->fContent); |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 675 | SkPDFUtils::AppendLine(points[i * 2 + 1].fX, |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 676 | points[i * 2 + 1].fY, |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 677 | &content.entry()->fContent); |
| 678 | SkPDFUtils::StrokePath(&content.entry()->fContent); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 679 | } |
| 680 | break; |
| 681 | case SkCanvas::kPoints_PointMode: |
vandebo@chromium.org | 25adce8 | 2011-05-09 08:05:01 +0000 | [diff] [blame] | 682 | SkASSERT(paint->getStrokeCap() == SkPaint::kRound_Cap); |
| 683 | for (size_t i = 0; i < count; i++) { |
| 684 | SkPDFUtils::MoveTo(points[i].fX, points[i].fY, |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 685 | &content.entry()->fContent); |
| 686 | SkPDFUtils::ClosePath(&content.entry()->fContent); |
| 687 | SkPDFUtils::StrokePath(&content.entry()->fContent); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 688 | } |
| 689 | break; |
| 690 | default: |
| 691 | SkASSERT(false); |
| 692 | } |
| 693 | } |
| 694 | |
| 695 | void SkPDFDevice::drawRect(const SkDraw& d, const SkRect& r, |
| 696 | const SkPaint& paint) { |
| 697 | if (paint.getPathEffect()) { |
vandebo@chromium.org | 25adce8 | 2011-05-09 08:05:01 +0000 | [diff] [blame] | 698 | if (d.fClip->isEmpty()) { |
| 699 | return; |
| 700 | } |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 701 | SkPath path; |
| 702 | path.addRect(r); |
vandebo@chromium.org | ff39032 | 2011-05-17 18:58:44 +0000 | [diff] [blame] | 703 | drawPath(d, path, paint, NULL, true); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 704 | return; |
| 705 | } |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 706 | |
vandebo@chromium.org | 13d14a9 | 2011-05-24 23:12:41 +0000 | [diff] [blame] | 707 | ScopedContentEntry content(this, d, paint); |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 708 | if (!content.entry()) { |
vandebo@chromium.org | 25adce8 | 2011-05-09 08:05:01 +0000 | [diff] [blame] | 709 | return; |
| 710 | } |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 711 | SkPDFUtils::AppendRectangle(r, &content.entry()->fContent); |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 712 | SkPDFUtils::PaintPath(paint.getStyle(), SkPath::kWinding_FillType, |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 713 | &content.entry()->fContent); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 714 | } |
| 715 | |
vandebo@chromium.org | ff39032 | 2011-05-17 18:58:44 +0000 | [diff] [blame] | 716 | void SkPDFDevice::drawPath(const SkDraw& d, const SkPath& origPath, |
vandebo@chromium.org | 02cc5aa | 2011-01-25 22:06:29 +0000 | [diff] [blame] | 717 | const SkPaint& paint, const SkMatrix* prePathMatrix, |
| 718 | bool pathIsMutable) { |
vandebo@chromium.org | ff39032 | 2011-05-17 18:58:44 +0000 | [diff] [blame] | 719 | SkPath modifiedPath; |
| 720 | SkPath* pathPtr = const_cast<SkPath*>(&origPath); |
| 721 | |
| 722 | SkMatrix matrix = *d.fMatrix; |
| 723 | if (prePathMatrix) { |
| 724 | if (paint.getPathEffect() || paint.getStyle() != SkPaint::kFill_Style) { |
| 725 | if (!pathIsMutable) { |
| 726 | pathPtr = &modifiedPath; |
| 727 | pathIsMutable = true; |
| 728 | } |
| 729 | origPath.transform(*prePathMatrix, pathPtr); |
| 730 | } else { |
| 731 | if (!matrix.preConcat(*prePathMatrix)) { |
| 732 | return; |
| 733 | } |
| 734 | } |
| 735 | } |
vandebo@chromium.org | 02cc5aa | 2011-01-25 22:06:29 +0000 | [diff] [blame] | 736 | |
vandebo@chromium.org | 7d71f7f | 2010-10-26 19:51:44 +0000 | [diff] [blame] | 737 | if (paint.getPathEffect()) { |
vandebo@chromium.org | 25adce8 | 2011-05-09 08:05:01 +0000 | [diff] [blame] | 738 | if (d.fClip->isEmpty()) { |
| 739 | return; |
| 740 | } |
vandebo@chromium.org | ff39032 | 2011-05-17 18:58:44 +0000 | [diff] [blame] | 741 | if (!pathIsMutable) { |
| 742 | pathPtr = &modifiedPath; |
| 743 | pathIsMutable = true; |
| 744 | } |
| 745 | bool fill = paint.getFillPath(origPath, pathPtr); |
vandebo@chromium.org | 7d71f7f | 2010-10-26 19:51:44 +0000 | [diff] [blame] | 746 | |
vandebo@chromium.org | 7e2ff7c | 2010-11-03 23:55:28 +0000 | [diff] [blame] | 747 | SkPaint noEffectPaint(paint); |
vandebo@chromium.org | ff39032 | 2011-05-17 18:58:44 +0000 | [diff] [blame] | 748 | noEffectPaint.setPathEffect(NULL); |
| 749 | if (fill) { |
| 750 | noEffectPaint.setStyle(SkPaint::kFill_Style); |
| 751 | } else { |
| 752 | noEffectPaint.setStyle(SkPaint::kStroke_Style); |
| 753 | noEffectPaint.setStrokeWidth(0); |
| 754 | } |
| 755 | drawPath(d, *pathPtr, noEffectPaint, NULL, true); |
vandebo@chromium.org | 7d71f7f | 2010-10-26 19:51:44 +0000 | [diff] [blame] | 756 | return; |
| 757 | } |
vandebo@chromium.org | ff39032 | 2011-05-17 18:58:44 +0000 | [diff] [blame] | 758 | |
vandebo@chromium.org | 13d14a9 | 2011-05-24 23:12:41 +0000 | [diff] [blame] | 759 | ScopedContentEntry content(this, d, paint); |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 760 | if (!content.entry()) { |
vandebo@chromium.org | 25adce8 | 2011-05-09 08:05:01 +0000 | [diff] [blame] | 761 | return; |
| 762 | } |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 763 | SkPDFUtils::EmitPath(*pathPtr, &content.entry()->fContent); |
vandebo@chromium.org | ff39032 | 2011-05-17 18:58:44 +0000 | [diff] [blame] | 764 | SkPDFUtils::PaintPath(paint.getStyle(), pathPtr->getFillType(), |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 765 | &content.entry()->fContent); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 766 | } |
| 767 | |
vandebo@chromium.org | fb0b0ed | 2011-04-15 20:01:17 +0000 | [diff] [blame] | 768 | void SkPDFDevice::drawBitmap(const SkDraw& d, const SkBitmap& bitmap, |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 769 | const SkIRect* srcRect, const SkMatrix& matrix, |
| 770 | const SkPaint& paint) { |
vandebo@chromium.org | fb0b0ed | 2011-04-15 20:01:17 +0000 | [diff] [blame] | 771 | if (d.fClip->isEmpty()) { |
| 772 | return; |
| 773 | } |
| 774 | |
vandebo@chromium.org | 7e2ff7c | 2010-11-03 23:55:28 +0000 | [diff] [blame] | 775 | SkMatrix transform = matrix; |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 776 | transform.postConcat(*d.fMatrix); |
vandebo@chromium.org | 78dad54 | 2011-05-11 18:46:03 +0000 | [diff] [blame] | 777 | internalDrawBitmap(transform, d.fClipStack, *d.fClip, bitmap, srcRect, |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 778 | paint); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 779 | } |
| 780 | |
vandebo@chromium.org | fb0b0ed | 2011-04-15 20:01:17 +0000 | [diff] [blame] | 781 | void SkPDFDevice::drawSprite(const SkDraw& d, const SkBitmap& bitmap, |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 782 | int x, int y, const SkPaint& paint) { |
vandebo@chromium.org | fb0b0ed | 2011-04-15 20:01:17 +0000 | [diff] [blame] | 783 | if (d.fClip->isEmpty()) { |
| 784 | return; |
| 785 | } |
| 786 | |
vandebo@chromium.org | 7e2ff7c | 2010-11-03 23:55:28 +0000 | [diff] [blame] | 787 | SkMatrix matrix; |
reed@google.com | a6d59f6 | 2011-03-07 21:29:21 +0000 | [diff] [blame] | 788 | matrix.setTranslate(SkIntToScalar(x), SkIntToScalar(y)); |
vandebo@chromium.org | 78dad54 | 2011-05-11 18:46:03 +0000 | [diff] [blame] | 789 | internalDrawBitmap(matrix, d.fClipStack, *d.fClip, bitmap, NULL, paint); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 790 | } |
| 791 | |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 792 | void SkPDFDevice::drawText(const SkDraw& d, const void* text, size_t len, |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 793 | SkScalar x, SkScalar y, const SkPaint& paint) { |
vandebo@chromium.org | 25adce8 | 2011-05-09 08:05:01 +0000 | [diff] [blame] | 794 | SkPaint textPaint = calculate_text_paint(paint); |
vandebo@chromium.org | 13d14a9 | 2011-05-24 23:12:41 +0000 | [diff] [blame] | 795 | ScopedContentEntry content(this, d, textPaint, true); |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 796 | if (!content.entry()) { |
vandebo@chromium.org | fb0b0ed | 2011-04-15 20:01:17 +0000 | [diff] [blame] | 797 | return; |
| 798 | } |
| 799 | |
vandebo@chromium.org | 0129410 | 2011-02-28 19:52:18 +0000 | [diff] [blame] | 800 | // We want the text in glyph id encoding and a writable buffer, so we end |
| 801 | // up making a copy either way. |
| 802 | size_t numGlyphs = paint.textToGlyphs(text, len, NULL); |
ctguil@chromium.org | a5c7234 | 2011-08-15 23:55:03 +0000 | [diff] [blame] | 803 | uint16_t* glyphIDs = reinterpret_cast<uint16_t*>( |
| 804 | sk_malloc_flags(numGlyphs * 2, SK_MALLOC_TEMP | SK_MALLOC_THROW)); |
vandebo@chromium.org | 0129410 | 2011-02-28 19:52:18 +0000 | [diff] [blame] | 805 | SkAutoFree autoFreeGlyphIDs(glyphIDs); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 806 | if (paint.getTextEncoding() != SkPaint::kGlyphID_TextEncoding) { |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 807 | paint.textToGlyphs(text, len, glyphIDs); |
| 808 | textPaint.setTextEncoding(SkPaint::kGlyphID_TextEncoding); |
| 809 | } else { |
| 810 | SkASSERT((len & 1) == 0); |
vandebo@chromium.org | 0129410 | 2011-02-28 19:52:18 +0000 | [diff] [blame] | 811 | SkASSERT(len / 2 == numGlyphs); |
| 812 | memcpy(glyphIDs, text, len); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 813 | } |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 814 | |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 815 | SkDrawCacheProc glyphCacheProc = textPaint.getDrawCacheProc(); |
bungeman@google.com | 9a87cee | 2011-08-23 17:02:18 +0000 | [diff] [blame] | 816 | align_text(glyphCacheProc, textPaint, glyphIDs, numGlyphs, &x, &y); |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 817 | content.entry()->fContent.writeText("BT\n"); |
| 818 | set_text_transform(x, y, textPaint.getTextSkewX(), |
| 819 | &content.entry()->fContent); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 820 | size_t consumedGlyphCount = 0; |
| 821 | while (numGlyphs > consumedGlyphCount) { |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 822 | updateFont(textPaint, glyphIDs[consumedGlyphCount], content.entry()); |
| 823 | SkPDFFont* font = content.entry()->fState.fFont; |
vandebo@chromium.org | 0129410 | 2011-02-28 19:52:18 +0000 | [diff] [blame] | 824 | size_t availableGlyphs = |
| 825 | font->glyphsToPDFFontEncoding(glyphIDs + consumedGlyphCount, |
| 826 | numGlyphs - consumedGlyphCount); |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 827 | fFontGlyphUsage->noteGlyphUsage(font, glyphIDs + consumedGlyphCount, |
| 828 | availableGlyphs); |
vandebo@chromium.org | cae5fba | 2011-03-28 19:03:50 +0000 | [diff] [blame] | 829 | SkString encodedString = |
reed@google.com | f6c3ebd | 2011-07-20 17:20:28 +0000 | [diff] [blame] | 830 | SkPDFString::FormatString(glyphIDs + consumedGlyphCount, |
vandebo@chromium.org | cae5fba | 2011-03-28 19:03:50 +0000 | [diff] [blame] | 831 | availableGlyphs, font->multiByteGlyphs()); |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 832 | content.entry()->fContent.writeText(encodedString.c_str()); |
vandebo@chromium.org | 0129410 | 2011-02-28 19:52:18 +0000 | [diff] [blame] | 833 | consumedGlyphCount += availableGlyphs; |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 834 | content.entry()->fContent.writeText(" Tj\n"); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 835 | } |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 836 | content.entry()->fContent.writeText("ET\n"); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 837 | } |
| 838 | |
vandebo@chromium.org | fb0b0ed | 2011-04-15 20:01:17 +0000 | [diff] [blame] | 839 | void SkPDFDevice::drawPosText(const SkDraw& d, const void* text, size_t len, |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 840 | const SkScalar pos[], SkScalar constY, |
| 841 | int scalarsPerPos, const SkPaint& paint) { |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 842 | SkASSERT(1 == scalarsPerPos || 2 == scalarsPerPos); |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 843 | SkPaint textPaint = calculate_text_paint(paint); |
vandebo@chromium.org | 13d14a9 | 2011-05-24 23:12:41 +0000 | [diff] [blame] | 844 | ScopedContentEntry content(this, d, textPaint, true); |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 845 | if (!content.entry()) { |
vandebo@chromium.org | 25adce8 | 2011-05-09 08:05:01 +0000 | [diff] [blame] | 846 | return; |
| 847 | } |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 848 | |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 849 | // Make sure we have a glyph id encoding. |
| 850 | SkAutoFree glyphStorage; |
| 851 | uint16_t* glyphIDs; |
| 852 | size_t numGlyphs; |
| 853 | if (paint.getTextEncoding() != SkPaint::kGlyphID_TextEncoding) { |
| 854 | numGlyphs = paint.textToGlyphs(text, len, NULL); |
ctguil@chromium.org | a5c7234 | 2011-08-15 23:55:03 +0000 | [diff] [blame] | 855 | glyphIDs = reinterpret_cast<uint16_t*>(sk_malloc_flags( |
| 856 | numGlyphs * 2, SK_MALLOC_TEMP | SK_MALLOC_THROW)); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 857 | glyphStorage.set(glyphIDs); |
| 858 | paint.textToGlyphs(text, len, glyphIDs); |
| 859 | textPaint.setTextEncoding(SkPaint::kGlyphID_TextEncoding); |
| 860 | } else { |
| 861 | SkASSERT((len & 1) == 0); |
| 862 | numGlyphs = len / 2; |
ctguil@chromium.org | a5c7234 | 2011-08-15 23:55:03 +0000 | [diff] [blame] | 863 | glyphIDs = reinterpret_cast<uint16_t*>(const_cast<void*>((text))); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 864 | } |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 865 | |
| 866 | SkDrawCacheProc glyphCacheProc = textPaint.getDrawCacheProc(); |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 867 | content.entry()->fContent.writeText("BT\n"); |
| 868 | updateFont(textPaint, glyphIDs[0], content.entry()); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 869 | for (size_t i = 0; i < numGlyphs; i++) { |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 870 | SkPDFFont* font = content.entry()->fState.fFont; |
vandebo@chromium.org | 0129410 | 2011-02-28 19:52:18 +0000 | [diff] [blame] | 871 | uint16_t encodedValue = glyphIDs[i]; |
| 872 | if (font->glyphsToPDFFontEncoding(&encodedValue, 1) != 1) { |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 873 | updateFont(textPaint, glyphIDs[i], content.entry()); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 874 | i--; |
| 875 | continue; |
| 876 | } |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 877 | fFontGlyphUsage->noteGlyphUsage(font, &encodedValue, 1); |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 878 | SkScalar x = pos[i * scalarsPerPos]; |
| 879 | SkScalar y = scalarsPerPos == 1 ? constY : pos[i * scalarsPerPos + 1]; |
bungeman@google.com | 9a87cee | 2011-08-23 17:02:18 +0000 | [diff] [blame] | 880 | align_text(glyphCacheProc, textPaint, glyphIDs + i, 1, &x, &y); |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 881 | set_text_transform(x, y, textPaint.getTextSkewX(), |
| 882 | &content.entry()->fContent); |
vandebo@chromium.org | cae5fba | 2011-03-28 19:03:50 +0000 | [diff] [blame] | 883 | SkString encodedString = |
reed@google.com | f6c3ebd | 2011-07-20 17:20:28 +0000 | [diff] [blame] | 884 | SkPDFString::FormatString(&encodedValue, 1, |
vandebo@chromium.org | cae5fba | 2011-03-28 19:03:50 +0000 | [diff] [blame] | 885 | font->multiByteGlyphs()); |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 886 | content.entry()->fContent.writeText(encodedString.c_str()); |
| 887 | content.entry()->fContent.writeText(" Tj\n"); |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 888 | } |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 889 | content.entry()->fContent.writeText("ET\n"); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 890 | } |
| 891 | |
vandebo@chromium.org | fb0b0ed | 2011-04-15 20:01:17 +0000 | [diff] [blame] | 892 | void SkPDFDevice::drawTextOnPath(const SkDraw& d, const void* text, size_t len, |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 893 | const SkPath& path, const SkMatrix* matrix, |
| 894 | const SkPaint& paint) { |
vandebo@chromium.org | fb0b0ed | 2011-04-15 20:01:17 +0000 | [diff] [blame] | 895 | if (d.fClip->isEmpty()) { |
| 896 | return; |
| 897 | } |
vandebo@chromium.org | 290e3bb | 2011-11-08 23:42:53 +0000 | [diff] [blame] | 898 | d.drawTextOnPath((const char*)text, len, path, matrix, paint); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 899 | } |
| 900 | |
vandebo@chromium.org | fb0b0ed | 2011-04-15 20:01:17 +0000 | [diff] [blame] | 901 | void SkPDFDevice::drawVertices(const SkDraw& d, SkCanvas::VertexMode, |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 902 | int vertexCount, const SkPoint verts[], |
| 903 | const SkPoint texs[], const SkColor colors[], |
| 904 | SkXfermode* xmode, const uint16_t indices[], |
| 905 | int indexCount, const SkPaint& paint) { |
vandebo@chromium.org | fb0b0ed | 2011-04-15 20:01:17 +0000 | [diff] [blame] | 906 | if (d.fClip->isEmpty()) { |
| 907 | return; |
| 908 | } |
vandebo@chromium.org | a518086 | 2010-10-26 19:48:49 +0000 | [diff] [blame] | 909 | NOT_IMPLEMENTED("drawVerticies", true); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 910 | } |
| 911 | |
vandebo@chromium.org | eb6c759 | 2010-10-26 19:54:45 +0000 | [diff] [blame] | 912 | void SkPDFDevice::drawDevice(const SkDraw& d, SkDevice* device, int x, int y, |
| 913 | const SkPaint& paint) { |
| 914 | if ((device->getDeviceCapabilities() & kVector_Capability) == 0) { |
| 915 | // If we somehow get a raster device, do what our parent would do. |
| 916 | SkDevice::drawDevice(d, device, x, y, paint); |
| 917 | return; |
| 918 | } |
vandebo@chromium.org | eb6c759 | 2010-10-26 19:54:45 +0000 | [diff] [blame] | 919 | |
vandebo@chromium.org | ee7a956 | 2011-05-24 17:38:01 +0000 | [diff] [blame] | 920 | // Assume that a vector capable device means that it's a PDF Device. |
| 921 | SkPDFDevice* pdfDevice = static_cast<SkPDFDevice*>(device); |
ctguil@chromium.org | f4ff39c | 2011-05-24 19:55:05 +0000 | [diff] [blame] | 922 | if (pdfDevice->isContentEmpty()) { |
vandebo@chromium.org | ee7a956 | 2011-05-24 17:38:01 +0000 | [diff] [blame] | 923 | return; |
| 924 | } |
| 925 | |
vandebo@chromium.org | 1aef2ed | 2011-02-03 21:46:10 +0000 | [diff] [blame] | 926 | SkMatrix matrix; |
reed@google.com | a6d59f6 | 2011-03-07 21:29:21 +0000 | [diff] [blame] | 927 | matrix.setTranslate(SkIntToScalar(x), SkIntToScalar(y)); |
vandebo@chromium.org | 13d14a9 | 2011-05-24 23:12:41 +0000 | [diff] [blame] | 928 | ScopedContentEntry content(this, d.fClipStack, *d.fClip, matrix, paint); |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 929 | if (!content.entry()) { |
vandebo@chromium.org | 25adce8 | 2011-05-09 08:05:01 +0000 | [diff] [blame] | 930 | return; |
| 931 | } |
vandebo@chromium.org | 1aef2ed | 2011-02-03 21:46:10 +0000 | [diff] [blame] | 932 | |
| 933 | SkPDFFormXObject* xobject = new SkPDFFormXObject(pdfDevice); |
vandebo@chromium.org | eb6c759 | 2010-10-26 19:54:45 +0000 | [diff] [blame] | 934 | fXObjectResources.push(xobject); // Transfer reference. |
vandebo@chromium.org | 6112c21 | 2011-05-13 03:50:38 +0000 | [diff] [blame] | 935 | SkPDFUtils::DrawFormXObject(fXObjectResources.count() - 1, |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 936 | &content.entry()->fContent); |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 937 | |
| 938 | // Merge glyph sets from the drawn device. |
| 939 | fFontGlyphUsage->merge(pdfDevice->getFontGlyphUsage()); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 940 | } |
| 941 | |
ctguil@chromium.org | 8dcf74f | 2011-07-12 21:56:27 +0000 | [diff] [blame] | 942 | ContentEntry* SkPDFDevice::getLastContentEntry() { |
| 943 | if (fDrawingArea == kContent_DrawingArea) { |
| 944 | return fLastContentEntry; |
| 945 | } else { |
| 946 | return fLastMarginContentEntry; |
| 947 | } |
| 948 | } |
| 949 | |
ctguil@chromium.org | 9510ccc | 2011-07-27 00:10:51 +0000 | [diff] [blame] | 950 | SkTScopedPtr<ContentEntry>* SkPDFDevice::getContentEntries() { |
ctguil@chromium.org | 8dcf74f | 2011-07-12 21:56:27 +0000 | [diff] [blame] | 951 | if (fDrawingArea == kContent_DrawingArea) { |
ctguil@chromium.org | 9510ccc | 2011-07-27 00:10:51 +0000 | [diff] [blame] | 952 | return &fContentEntries; |
ctguil@chromium.org | 8dcf74f | 2011-07-12 21:56:27 +0000 | [diff] [blame] | 953 | } else { |
ctguil@chromium.org | 9510ccc | 2011-07-27 00:10:51 +0000 | [diff] [blame] | 954 | return &fMarginContentEntries; |
ctguil@chromium.org | 8dcf74f | 2011-07-12 21:56:27 +0000 | [diff] [blame] | 955 | } |
| 956 | } |
| 957 | |
| 958 | void SkPDFDevice::setLastContentEntry(ContentEntry* contentEntry) { |
| 959 | if (fDrawingArea == kContent_DrawingArea) { |
| 960 | fLastContentEntry = contentEntry; |
| 961 | } else { |
| 962 | fLastMarginContentEntry = contentEntry; |
| 963 | } |
| 964 | } |
| 965 | |
| 966 | void SkPDFDevice::setDrawingArea(DrawingArea drawingArea) { |
ctguil@chromium.org | 9510ccc | 2011-07-27 00:10:51 +0000 | [diff] [blame] | 967 | // A ScopedContentEntry only exists during the course of a draw call, so |
| 968 | // this can't be called while a ScopedContentEntry exists. |
ctguil@chromium.org | 8dcf74f | 2011-07-12 21:56:27 +0000 | [diff] [blame] | 969 | fDrawingArea = drawingArea; |
| 970 | } |
| 971 | |
reed@google.com | 1feb330 | 2011-07-20 18:43:19 +0000 | [diff] [blame] | 972 | SkPDFDict* SkPDFDevice::getResourceDict() { |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 973 | if (fResourceDict.get() == NULL) { |
| 974 | fResourceDict = new SkPDFDict; |
| 975 | fResourceDict->unref(); // SkRefPtr and new both took a reference. |
| 976 | |
| 977 | if (fGraphicStateResources.count()) { |
| 978 | SkRefPtr<SkPDFDict> extGState = new SkPDFDict(); |
| 979 | extGState->unref(); // SkRefPtr and new both took a reference. |
| 980 | for (int i = 0; i < fGraphicStateResources.count(); i++) { |
| 981 | SkString nameString("G"); |
| 982 | nameString.appendS32(i); |
vandebo@chromium.org | f7c1576 | 2011-02-01 22:19:44 +0000 | [diff] [blame] | 983 | extGState->insert( |
| 984 | nameString.c_str(), |
| 985 | new SkPDFObjRef(fGraphicStateResources[i]))->unref(); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 986 | } |
| 987 | fResourceDict->insert("ExtGState", extGState.get()); |
| 988 | } |
| 989 | |
| 990 | if (fXObjectResources.count()) { |
| 991 | SkRefPtr<SkPDFDict> xObjects = new SkPDFDict(); |
| 992 | xObjects->unref(); // SkRefPtr and new both took a reference. |
| 993 | for (int i = 0; i < fXObjectResources.count(); i++) { |
| 994 | SkString nameString("X"); |
| 995 | nameString.appendS32(i); |
vandebo@chromium.org | f7c1576 | 2011-02-01 22:19:44 +0000 | [diff] [blame] | 996 | xObjects->insert( |
| 997 | nameString.c_str(), |
| 998 | new SkPDFObjRef(fXObjectResources[i]))->unref(); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 999 | } |
| 1000 | fResourceDict->insert("XObject", xObjects.get()); |
| 1001 | } |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 1002 | |
| 1003 | if (fFontResources.count()) { |
| 1004 | SkRefPtr<SkPDFDict> fonts = new SkPDFDict(); |
| 1005 | fonts->unref(); // SkRefPtr and new both took a reference. |
| 1006 | for (int i = 0; i < fFontResources.count(); i++) { |
| 1007 | SkString nameString("F"); |
| 1008 | nameString.appendS32(i); |
vandebo@chromium.org | f7c1576 | 2011-02-01 22:19:44 +0000 | [diff] [blame] | 1009 | fonts->insert(nameString.c_str(), |
| 1010 | new SkPDFObjRef(fFontResources[i]))->unref(); |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 1011 | } |
| 1012 | fResourceDict->insert("Font", fonts.get()); |
| 1013 | } |
| 1014 | |
vandebo@chromium.org | da912d6 | 2011-03-08 18:31:02 +0000 | [diff] [blame] | 1015 | if (fShaderResources.count()) { |
| 1016 | SkRefPtr<SkPDFDict> patterns = new SkPDFDict(); |
| 1017 | patterns->unref(); // SkRefPtr and new both took a reference. |
| 1018 | for (int i = 0; i < fShaderResources.count(); i++) { |
| 1019 | SkString nameString("P"); |
| 1020 | nameString.appendS32(i); |
| 1021 | patterns->insert(nameString.c_str(), |
| 1022 | new SkPDFObjRef(fShaderResources[i]))->unref(); |
| 1023 | } |
| 1024 | fResourceDict->insert("Pattern", patterns.get()); |
| 1025 | } |
| 1026 | |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 1027 | // For compatibility, add all proc sets (only used for output to PS |
| 1028 | // devices). |
| 1029 | const char procs[][7] = {"PDF", "Text", "ImageB", "ImageC", "ImageI"}; |
| 1030 | SkRefPtr<SkPDFArray> procSets = new SkPDFArray(); |
| 1031 | procSets->unref(); // SkRefPtr and new both took a reference. |
| 1032 | procSets->reserve(SK_ARRAY_COUNT(procs)); |
vandebo@chromium.org | f7c1576 | 2011-02-01 22:19:44 +0000 | [diff] [blame] | 1033 | for (size_t i = 0; i < SK_ARRAY_COUNT(procs); i++) |
reed@google.com | c789cf1 | 2011-07-20 12:14:33 +0000 | [diff] [blame] | 1034 | procSets->appendName(procs[i]); |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 1035 | fResourceDict->insert("ProcSet", procSets.get()); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 1036 | } |
reed@google.com | 1feb330 | 2011-07-20 18:43:19 +0000 | [diff] [blame] | 1037 | return fResourceDict.get(); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 1038 | } |
| 1039 | |
vandebo@chromium.org | 188838c | 2012-03-09 22:16:58 +0000 | [diff] [blame] | 1040 | void SkPDFDevice::getResources(SkTDArray<SkPDFObject*>* resourceList, |
| 1041 | bool recursive) const { |
vandebo@chromium.org | a518086 | 2010-10-26 19:48:49 +0000 | [diff] [blame] | 1042 | resourceList->setReserve(resourceList->count() + |
| 1043 | fGraphicStateResources.count() + |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 1044 | fXObjectResources.count() + |
vandebo@chromium.org | da912d6 | 2011-03-08 18:31:02 +0000 | [diff] [blame] | 1045 | fFontResources.count() + |
| 1046 | fShaderResources.count()); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 1047 | for (int i = 0; i < fGraphicStateResources.count(); i++) { |
vandebo@chromium.org | a518086 | 2010-10-26 19:48:49 +0000 | [diff] [blame] | 1048 | resourceList->push(fGraphicStateResources[i]); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 1049 | fGraphicStateResources[i]->ref(); |
vandebo@chromium.org | 188838c | 2012-03-09 22:16:58 +0000 | [diff] [blame] | 1050 | if (recursive) { |
| 1051 | fGraphicStateResources[i]->getResources(resourceList); |
| 1052 | } |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 1053 | } |
| 1054 | for (int i = 0; i < fXObjectResources.count(); i++) { |
vandebo@chromium.org | a518086 | 2010-10-26 19:48:49 +0000 | [diff] [blame] | 1055 | resourceList->push(fXObjectResources[i]); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 1056 | fXObjectResources[i]->ref(); |
vandebo@chromium.org | 188838c | 2012-03-09 22:16:58 +0000 | [diff] [blame] | 1057 | if (recursive) { |
| 1058 | fXObjectResources[i]->getResources(resourceList); |
| 1059 | } |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 1060 | } |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 1061 | for (int i = 0; i < fFontResources.count(); i++) { |
| 1062 | resourceList->push(fFontResources[i]); |
| 1063 | fFontResources[i]->ref(); |
vandebo@chromium.org | 188838c | 2012-03-09 22:16:58 +0000 | [diff] [blame] | 1064 | if (recursive) { |
| 1065 | fFontResources[i]->getResources(resourceList); |
| 1066 | } |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 1067 | } |
vandebo@chromium.org | da912d6 | 2011-03-08 18:31:02 +0000 | [diff] [blame] | 1068 | for (int i = 0; i < fShaderResources.count(); i++) { |
| 1069 | resourceList->push(fShaderResources[i]); |
| 1070 | fShaderResources[i]->ref(); |
vandebo@chromium.org | 188838c | 2012-03-09 22:16:58 +0000 | [diff] [blame] | 1071 | if (recursive) { |
| 1072 | fShaderResources[i]->getResources(resourceList); |
| 1073 | } |
vandebo@chromium.org | da912d6 | 2011-03-08 18:31:02 +0000 | [diff] [blame] | 1074 | } |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 1075 | } |
| 1076 | |
vandebo@chromium.org | f0ec266 | 2011-05-29 05:55:42 +0000 | [diff] [blame] | 1077 | const SkTDArray<SkPDFFont*>& SkPDFDevice::getFontResources() const { |
| 1078 | return fFontResources; |
| 1079 | } |
| 1080 | |
vandebo@chromium.org | a518086 | 2010-10-26 19:48:49 +0000 | [diff] [blame] | 1081 | SkRefPtr<SkPDFArray> SkPDFDevice::getMediaBox() const { |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 1082 | SkRefPtr<SkPDFInt> zero = new SkPDFInt(0); |
| 1083 | zero->unref(); // SkRefPtr and new both took a reference. |
vandebo@chromium.org | f7c1576 | 2011-02-01 22:19:44 +0000 | [diff] [blame] | 1084 | |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 1085 | SkRefPtr<SkPDFArray> mediaBox = new SkPDFArray(); |
| 1086 | mediaBox->unref(); // SkRefPtr and new both took a reference. |
| 1087 | mediaBox->reserve(4); |
| 1088 | mediaBox->append(zero.get()); |
| 1089 | mediaBox->append(zero.get()); |
reed@google.com | c789cf1 | 2011-07-20 12:14:33 +0000 | [diff] [blame] | 1090 | mediaBox->appendInt(fPageSize.fWidth); |
| 1091 | mediaBox->appendInt(fPageSize.fHeight); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 1092 | return mediaBox; |
| 1093 | } |
| 1094 | |
vandebo@chromium.org | c2a9b7f | 2011-02-24 23:22:30 +0000 | [diff] [blame] | 1095 | SkStream* SkPDFDevice::content() const { |
reed@google.com | 5667afc | 2011-06-27 14:42:15 +0000 | [diff] [blame] | 1096 | SkMemoryStream* result = new SkMemoryStream; |
| 1097 | result->setData(this->copyContentToData())->unref(); |
| 1098 | return result; |
| 1099 | } |
| 1100 | |
ctguil@chromium.org | 8dcf74f | 2011-07-12 21:56:27 +0000 | [diff] [blame] | 1101 | void SkPDFDevice::copyContentEntriesToData(ContentEntry* entry, |
| 1102 | SkWStream* data) const { |
ctguil@chromium.org | 9510ccc | 2011-07-27 00:10:51 +0000 | [diff] [blame] | 1103 | // TODO(ctguil): For margins, I'm not sure fExistingClipStack/Region is the |
| 1104 | // right thing to pass here. |
ctguil@chromium.org | 8dcf74f | 2011-07-12 21:56:27 +0000 | [diff] [blame] | 1105 | GraphicStackState gsState(fExistingClipStack, fExistingClipRegion, data); |
ctguil@chromium.org | 9510ccc | 2011-07-27 00:10:51 +0000 | [diff] [blame] | 1106 | while (entry != NULL) { |
vandebo@chromium.org | 663515b | 2012-01-05 18:45:27 +0000 | [diff] [blame] | 1107 | SkPoint translation; |
| 1108 | translation.iset(this->getOrigin()); |
ctguil@chromium.org | 8dcf74f | 2011-07-12 21:56:27 +0000 | [diff] [blame] | 1109 | translation.negate(); |
| 1110 | gsState.updateClip(entry->fState.fClipStack, entry->fState.fClipRegion, |
| 1111 | translation); |
| 1112 | gsState.updateMatrix(entry->fState.fMatrix); |
| 1113 | gsState.updateDrawingState(entry->fState); |
ctguil@chromium.org | 9510ccc | 2011-07-27 00:10:51 +0000 | [diff] [blame] | 1114 | |
ctguil@chromium.org | 8dcf74f | 2011-07-12 21:56:27 +0000 | [diff] [blame] | 1115 | SkAutoDataUnref copy(entry->fContent.copyToData()); |
| 1116 | data->write(copy.data(), copy.size()); |
| 1117 | entry = entry->fNext.get(); |
| 1118 | } |
| 1119 | gsState.drainStack(); |
| 1120 | } |
| 1121 | |
reed@google.com | 5667afc | 2011-06-27 14:42:15 +0000 | [diff] [blame] | 1122 | SkData* SkPDFDevice::copyContentToData() const { |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 1123 | SkDynamicMemoryWStream data; |
| 1124 | if (fInitialTransform.getType() != SkMatrix::kIdentity_Mask) { |
| 1125 | SkPDFUtils::AppendTransform(fInitialTransform, &data); |
vandebo@chromium.org | c2a9b7f | 2011-02-24 23:22:30 +0000 | [diff] [blame] | 1126 | } |
ctguil@chromium.org | 9510ccc | 2011-07-27 00:10:51 +0000 | [diff] [blame] | 1127 | |
ctguil@chromium.org | 8dcf74f | 2011-07-12 21:56:27 +0000 | [diff] [blame] | 1128 | // TODO(aayushkumar): Apply clip along the margins. Currently, webkit |
| 1129 | // colors the contentArea white before it starts drawing into it and |
| 1130 | // that currently acts as our clip. |
| 1131 | // Also, think about adding a transform here (or assume that the values |
| 1132 | // sent across account for that) |
| 1133 | SkPDFDevice::copyContentEntriesToData(fMarginContentEntries.get(), &data); |
ctguil@chromium.org | 9510ccc | 2011-07-27 00:10:51 +0000 | [diff] [blame] | 1134 | |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 1135 | // If the content area is the entire page, then we don't need to clip |
| 1136 | // the content area (PDF area clips to the page size). Otherwise, |
| 1137 | // we have to clip to the content area; we've already applied the |
| 1138 | // initial transform, so just clip to the device size. |
| 1139 | if (fPageSize != fContentSize) { |
| 1140 | SkRect r = SkRect::MakeWH(this->width(), this->height()); |
| 1141 | emit_clip(NULL, &r, &data); |
| 1142 | } |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1143 | |
ctguil@chromium.org | 8dcf74f | 2011-07-12 21:56:27 +0000 | [diff] [blame] | 1144 | SkPDFDevice::copyContentEntriesToData(fContentEntries.get(), &data); |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 1145 | |
reed@google.com | 5667afc | 2011-06-27 14:42:15 +0000 | [diff] [blame] | 1146 | // potentially we could cache this SkData, and only rebuild it if we |
| 1147 | // see that our state has changed. |
| 1148 | return data.copyToData(); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 1149 | } |
| 1150 | |
vandebo@chromium.org | 6112c21 | 2011-05-13 03:50:38 +0000 | [diff] [blame] | 1151 | void SkPDFDevice::createFormXObjectFromDevice( |
| 1152 | SkRefPtr<SkPDFFormXObject>* xobject) { |
| 1153 | *xobject = new SkPDFFormXObject(this); |
| 1154 | (*xobject)->unref(); // SkRefPtr and new both took a reference. |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1155 | // We always draw the form xobjects that we create back into the device, so |
| 1156 | // we simply preserve the font usage instead of pulling it out and merging |
| 1157 | // it back in later. |
| 1158 | cleanUp(false); // Reset this device to have no content. |
vandebo@chromium.org | 6112c21 | 2011-05-13 03:50:38 +0000 | [diff] [blame] | 1159 | init(); |
| 1160 | } |
| 1161 | |
vandebo@chromium.org | 466f3d6 | 2011-05-18 23:06:29 +0000 | [diff] [blame] | 1162 | void SkPDFDevice::clearClipFromContent(const SkClipStack* clipStack, |
| 1163 | const SkRegion& clipRegion) { |
vandebo@chromium.org | 481aef6 | 2011-05-24 16:39:05 +0000 | [diff] [blame] | 1164 | if (clipRegion.isEmpty() || isContentEmpty()) { |
| 1165 | return; |
| 1166 | } |
vandebo@chromium.org | 466f3d6 | 2011-05-18 23:06:29 +0000 | [diff] [blame] | 1167 | SkRefPtr<SkPDFFormXObject> curContent; |
| 1168 | createFormXObjectFromDevice(&curContent); |
| 1169 | |
vandebo@chromium.org | 481aef6 | 2011-05-24 16:39:05 +0000 | [diff] [blame] | 1170 | // Redraw what we already had, but with the clip as a mask. |
| 1171 | drawFormXObjectWithClip(curContent.get(), clipStack, clipRegion, true); |
| 1172 | } |
| 1173 | |
| 1174 | void SkPDFDevice::drawFormXObjectWithClip(SkPDFFormXObject* xobject, |
| 1175 | const SkClipStack* clipStack, |
| 1176 | const SkRegion& clipRegion, |
| 1177 | bool invertClip) { |
| 1178 | if (clipRegion.isEmpty() && !invertClip) { |
| 1179 | return; |
| 1180 | } |
| 1181 | |
vandebo@chromium.org | 466f3d6 | 2011-05-18 23:06:29 +0000 | [diff] [blame] | 1182 | // Create the mask. |
| 1183 | SkMatrix identity; |
| 1184 | identity.reset(); |
| 1185 | SkDraw draw; |
| 1186 | draw.fMatrix = &identity; |
| 1187 | draw.fClip = &clipRegion; |
| 1188 | draw.fClipStack = clipStack; |
| 1189 | SkPaint stockPaint; |
| 1190 | this->drawPaint(draw, stockPaint); |
| 1191 | SkRefPtr<SkPDFFormXObject> maskFormXObject; |
| 1192 | createFormXObjectFromDevice(&maskFormXObject); |
| 1193 | SkRefPtr<SkPDFGraphicState> sMaskGS = |
reed@google.com | f6c3ebd | 2011-07-20 17:20:28 +0000 | [diff] [blame] | 1194 | SkPDFGraphicState::GetSMaskGraphicState(maskFormXObject.get(), |
vandebo@chromium.org | 481aef6 | 2011-05-24 16:39:05 +0000 | [diff] [blame] | 1195 | invertClip); |
vandebo@chromium.org | 466f3d6 | 2011-05-18 23:06:29 +0000 | [diff] [blame] | 1196 | sMaskGS->unref(); // SkRefPtr and getSMaskGraphicState both took a ref. |
| 1197 | |
vandebo@chromium.org | 481aef6 | 2011-05-24 16:39:05 +0000 | [diff] [blame] | 1198 | // Draw the xobject with the clip as a mask. |
vandebo@chromium.org | 13d14a9 | 2011-05-24 23:12:41 +0000 | [diff] [blame] | 1199 | ScopedContentEntry content(this, &fExistingClipStack, fExistingClipRegion, |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 1200 | identity, stockPaint); |
| 1201 | if (!content.entry()) { |
| 1202 | return; |
| 1203 | } |
vandebo@chromium.org | 466f3d6 | 2011-05-18 23:06:29 +0000 | [diff] [blame] | 1204 | SkPDFUtils::ApplyGraphicState(addGraphicStateResource(sMaskGS.get()), |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 1205 | &content.entry()->fContent); |
vandebo@chromium.org | 466f3d6 | 2011-05-18 23:06:29 +0000 | [diff] [blame] | 1206 | SkPDFUtils::DrawFormXObject(fXObjectResources.count(), |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 1207 | &content.entry()->fContent); |
vandebo@chromium.org | 481aef6 | 2011-05-24 16:39:05 +0000 | [diff] [blame] | 1208 | fXObjectResources.push(xobject); |
| 1209 | xobject->ref(); |
vandebo@chromium.org | 466f3d6 | 2011-05-18 23:06:29 +0000 | [diff] [blame] | 1210 | |
reed@google.com | f6c3ebd | 2011-07-20 17:20:28 +0000 | [diff] [blame] | 1211 | sMaskGS = SkPDFGraphicState::GetNoSMaskGraphicState(); |
vandebo@chromium.org | 466f3d6 | 2011-05-18 23:06:29 +0000 | [diff] [blame] | 1212 | sMaskGS->unref(); // SkRefPtr and getSMaskGraphicState both took a ref. |
| 1213 | SkPDFUtils::ApplyGraphicState(addGraphicStateResource(sMaskGS.get()), |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 1214 | &content.entry()->fContent); |
vandebo@chromium.org | 466f3d6 | 2011-05-18 23:06:29 +0000 | [diff] [blame] | 1215 | } |
| 1216 | |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 1217 | ContentEntry* SkPDFDevice::setUpContentEntry(const SkClipStack* clipStack, |
| 1218 | const SkRegion& clipRegion, |
| 1219 | const SkMatrix& matrix, |
| 1220 | const SkPaint& paint, |
| 1221 | bool hasText, |
| 1222 | SkRefPtr<SkPDFFormXObject>* dst) { |
vandebo@chromium.org | 25adce8 | 2011-05-09 08:05:01 +0000 | [diff] [blame] | 1223 | if (clipRegion.isEmpty()) { |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 1224 | return NULL; |
vandebo@chromium.org | 25adce8 | 2011-05-09 08:05:01 +0000 | [diff] [blame] | 1225 | } |
| 1226 | |
vandebo@chromium.org | 78dad54 | 2011-05-11 18:46:03 +0000 | [diff] [blame] | 1227 | // The clip stack can come from an SkDraw where it is technically optional. |
| 1228 | SkClipStack synthesizedClipStack; |
| 1229 | if (clipStack == NULL) { |
| 1230 | if (clipRegion == fExistingClipRegion) { |
| 1231 | clipStack = &fExistingClipStack; |
| 1232 | } else { |
| 1233 | // GraphicStackState::updateClip expects the clip stack to have |
| 1234 | // fExistingClip as a prefix, so start there, then set the clip |
| 1235 | // to the passed region. |
| 1236 | synthesizedClipStack = fExistingClipStack; |
| 1237 | SkPath clipPath; |
| 1238 | clipRegion.getBoundaryPath(&clipPath); |
reed@google.com | 0017708 | 2011-10-12 14:34:30 +0000 | [diff] [blame] | 1239 | synthesizedClipStack.clipDevPath(clipPath, SkRegion::kReplace_Op, |
| 1240 | false); |
vandebo@chromium.org | 78dad54 | 2011-05-11 18:46:03 +0000 | [diff] [blame] | 1241 | clipStack = &synthesizedClipStack; |
| 1242 | } |
| 1243 | } |
| 1244 | |
vandebo@chromium.org | 25adce8 | 2011-05-09 08:05:01 +0000 | [diff] [blame] | 1245 | SkXfermode::Mode xfermode = SkXfermode::kSrcOver_Mode; |
| 1246 | if (paint.getXfermode()) { |
| 1247 | paint.getXfermode()->asMode(&xfermode); |
| 1248 | } |
| 1249 | |
vandebo@chromium.org | 25adce8 | 2011-05-09 08:05:01 +0000 | [diff] [blame] | 1250 | if (xfermode == SkXfermode::kClear_Mode || |
| 1251 | xfermode == SkXfermode::kSrc_Mode) { |
vandebo@chromium.org | 466f3d6 | 2011-05-18 23:06:29 +0000 | [diff] [blame] | 1252 | this->clearClipFromContent(clipStack, clipRegion); |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 1253 | } else if (xfermode == SkXfermode::kSrcIn_Mode || |
| 1254 | xfermode == SkXfermode::kDstIn_Mode || |
| 1255 | xfermode == SkXfermode::kSrcOut_Mode || |
| 1256 | xfermode == SkXfermode::kDstOut_Mode) { |
| 1257 | // For the following modes, we use both source and destination, but |
| 1258 | // we use one as a smask for the other, so we have to make form xobjects |
| 1259 | // out of both of them: SrcIn, DstIn, SrcOut, DstOut. |
vandebo@chromium.org | 481aef6 | 2011-05-24 16:39:05 +0000 | [diff] [blame] | 1260 | if (isContentEmpty()) { |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 1261 | return NULL; |
vandebo@chromium.org | 481aef6 | 2011-05-24 16:39:05 +0000 | [diff] [blame] | 1262 | } else { |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 1263 | createFormXObjectFromDevice(dst); |
vandebo@chromium.org | 481aef6 | 2011-05-24 16:39:05 +0000 | [diff] [blame] | 1264 | } |
vandebo@chromium.org | 6112c21 | 2011-05-13 03:50:38 +0000 | [diff] [blame] | 1265 | } |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 1266 | // TODO(vandebo): Figure out how/if we can handle the following modes: |
vandebo@chromium.org | 481aef6 | 2011-05-24 16:39:05 +0000 | [diff] [blame] | 1267 | // SrcAtop, DestAtop, Xor, Plus. |
vandebo@chromium.org | 25adce8 | 2011-05-09 08:05:01 +0000 | [diff] [blame] | 1268 | |
| 1269 | // These xfer modes don't draw source at all. |
| 1270 | if (xfermode == SkXfermode::kClear_Mode || |
| 1271 | xfermode == SkXfermode::kDst_Mode) { |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 1272 | return NULL; |
vandebo@chromium.org | 25adce8 | 2011-05-09 08:05:01 +0000 | [diff] [blame] | 1273 | } |
| 1274 | |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 1275 | ContentEntry* entry; |
| 1276 | SkTScopedPtr<ContentEntry> newEntry; |
ctguil@chromium.org | 8dcf74f | 2011-07-12 21:56:27 +0000 | [diff] [blame] | 1277 | |
| 1278 | ContentEntry* lastContentEntry = getLastContentEntry(); |
| 1279 | if (lastContentEntry && lastContentEntry->fContent.getOffset() == 0) { |
| 1280 | entry = lastContentEntry; |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 1281 | } else { |
| 1282 | newEntry.reset(new ContentEntry); |
| 1283 | entry = newEntry.get(); |
| 1284 | } |
| 1285 | |
vandebo@chromium.org | 78dad54 | 2011-05-11 18:46:03 +0000 | [diff] [blame] | 1286 | populateGraphicStateEntryFromPaint(matrix, *clipStack, clipRegion, paint, |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 1287 | hasText, &entry->fState); |
ctguil@chromium.org | 8dcf74f | 2011-07-12 21:56:27 +0000 | [diff] [blame] | 1288 | if (lastContentEntry && xfermode != SkXfermode::kDstOver_Mode && |
| 1289 | entry->fState.compareInitialState(lastContentEntry->fState)) { |
| 1290 | return lastContentEntry; |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 1291 | } |
| 1292 | |
ctguil@chromium.org | 9510ccc | 2011-07-27 00:10:51 +0000 | [diff] [blame] | 1293 | SkTScopedPtr<ContentEntry>* contentEntries = getContentEntries(); |
ctguil@chromium.org | 8dcf74f | 2011-07-12 21:56:27 +0000 | [diff] [blame] | 1294 | if (!lastContentEntry) { |
ctguil@chromium.org | 9510ccc | 2011-07-27 00:10:51 +0000 | [diff] [blame] | 1295 | contentEntries->reset(entry); |
ctguil@chromium.org | 8dcf74f | 2011-07-12 21:56:27 +0000 | [diff] [blame] | 1296 | setLastContentEntry(entry); |
vandebo@chromium.org | 25adce8 | 2011-05-09 08:05:01 +0000 | [diff] [blame] | 1297 | } else if (xfermode == SkXfermode::kDstOver_Mode) { |
ctguil@chromium.org | 9510ccc | 2011-07-27 00:10:51 +0000 | [diff] [blame] | 1298 | entry->fNext.reset(contentEntries->release()); |
| 1299 | contentEntries->reset(entry); |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 1300 | } else { |
ctguil@chromium.org | 8dcf74f | 2011-07-12 21:56:27 +0000 | [diff] [blame] | 1301 | lastContentEntry->fNext.reset(entry); |
| 1302 | setLastContentEntry(entry); |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 1303 | } |
| 1304 | newEntry.release(); |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 1305 | return entry; |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 1306 | } |
| 1307 | |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 1308 | void SkPDFDevice::finishContentEntry(const SkXfermode::Mode xfermode, |
| 1309 | SkPDFFormXObject* dst) { |
vandebo@chromium.org | 6112c21 | 2011-05-13 03:50:38 +0000 | [diff] [blame] | 1310 | if (xfermode != SkXfermode::kSrcIn_Mode && |
| 1311 | xfermode != SkXfermode::kDstIn_Mode && |
| 1312 | xfermode != SkXfermode::kSrcOut_Mode && |
| 1313 | xfermode != SkXfermode::kDstOut_Mode) { |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 1314 | SkASSERT(!dst); |
vandebo@chromium.org | 6112c21 | 2011-05-13 03:50:38 +0000 | [diff] [blame] | 1315 | return; |
| 1316 | } |
ctguil@chromium.org | 9510ccc | 2011-07-27 00:10:51 +0000 | [diff] [blame] | 1317 | |
| 1318 | ContentEntry* contentEntries = getContentEntries()->get(); |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 1319 | SkASSERT(dst); |
ctguil@chromium.org | 8dcf74f | 2011-07-12 21:56:27 +0000 | [diff] [blame] | 1320 | SkASSERT(!contentEntries->fNext.get()); |
vandebo@chromium.org | 481aef6 | 2011-05-24 16:39:05 +0000 | [diff] [blame] | 1321 | // We have to make a copy of these here because changing the current |
| 1322 | // content into a form xobject will destroy them. |
ctguil@chromium.org | 8dcf74f | 2011-07-12 21:56:27 +0000 | [diff] [blame] | 1323 | SkClipStack clipStack = contentEntries->fState.fClipStack; |
| 1324 | SkRegion clipRegion = contentEntries->fState.fClipRegion; |
vandebo@chromium.org | 481aef6 | 2011-05-24 16:39:05 +0000 | [diff] [blame] | 1325 | |
vandebo@chromium.org | 6112c21 | 2011-05-13 03:50:38 +0000 | [diff] [blame] | 1326 | SkRefPtr<SkPDFFormXObject> srcFormXObject; |
vandebo@chromium.org | 481aef6 | 2011-05-24 16:39:05 +0000 | [diff] [blame] | 1327 | if (!isContentEmpty()) { |
| 1328 | createFormXObjectFromDevice(&srcFormXObject); |
| 1329 | } |
| 1330 | |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 1331 | drawFormXObjectWithClip(dst, &clipStack, clipRegion, true); |
vandebo@chromium.org | 481aef6 | 2011-05-24 16:39:05 +0000 | [diff] [blame] | 1332 | |
| 1333 | // We've redrawn dst minus the clip area, if there's no src, we're done. |
| 1334 | if (!srcFormXObject.get()) { |
vandebo@chromium.org | 481aef6 | 2011-05-24 16:39:05 +0000 | [diff] [blame] | 1335 | return; |
| 1336 | } |
vandebo@chromium.org | 6112c21 | 2011-05-13 03:50:38 +0000 | [diff] [blame] | 1337 | |
| 1338 | SkMatrix identity; |
| 1339 | identity.reset(); |
| 1340 | SkPaint stockPaint; |
vandebo@chromium.org | 13d14a9 | 2011-05-24 23:12:41 +0000 | [diff] [blame] | 1341 | ScopedContentEntry inClipContentEntry(this, &fExistingClipStack, |
| 1342 | fExistingClipRegion, identity, |
| 1343 | stockPaint); |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 1344 | if (!inClipContentEntry.entry()) { |
| 1345 | return; |
| 1346 | } |
vandebo@chromium.org | 6112c21 | 2011-05-13 03:50:38 +0000 | [diff] [blame] | 1347 | |
| 1348 | SkRefPtr<SkPDFGraphicState> sMaskGS; |
| 1349 | if (xfermode == SkXfermode::kSrcIn_Mode || |
| 1350 | xfermode == SkXfermode::kSrcOut_Mode) { |
reed@google.com | f6c3ebd | 2011-07-20 17:20:28 +0000 | [diff] [blame] | 1351 | sMaskGS = SkPDFGraphicState::GetSMaskGraphicState( |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 1352 | dst, xfermode == SkXfermode::kSrcOut_Mode); |
vandebo@chromium.org | 6112c21 | 2011-05-13 03:50:38 +0000 | [diff] [blame] | 1353 | fXObjectResources.push(srcFormXObject.get()); |
| 1354 | srcFormXObject->ref(); |
| 1355 | } else { |
reed@google.com | f6c3ebd | 2011-07-20 17:20:28 +0000 | [diff] [blame] | 1356 | sMaskGS = SkPDFGraphicState::GetSMaskGraphicState( |
vandebo@chromium.org | 6112c21 | 2011-05-13 03:50:38 +0000 | [diff] [blame] | 1357 | srcFormXObject.get(), xfermode == SkXfermode::kDstOut_Mode); |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 1358 | // dst already added to fXObjectResources in drawFormXObjectWithClip. |
vandebo@chromium.org | 6112c21 | 2011-05-13 03:50:38 +0000 | [diff] [blame] | 1359 | } |
| 1360 | sMaskGS->unref(); // SkRefPtr and getSMaskGraphicState both took a ref. |
| 1361 | SkPDFUtils::ApplyGraphicState(addGraphicStateResource(sMaskGS.get()), |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 1362 | &inClipContentEntry.entry()->fContent); |
vandebo@chromium.org | 6112c21 | 2011-05-13 03:50:38 +0000 | [diff] [blame] | 1363 | |
| 1364 | SkPDFUtils::DrawFormXObject(fXObjectResources.count() - 1, |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 1365 | &inClipContentEntry.entry()->fContent); |
vandebo@chromium.org | 6112c21 | 2011-05-13 03:50:38 +0000 | [diff] [blame] | 1366 | |
reed@google.com | f6c3ebd | 2011-07-20 17:20:28 +0000 | [diff] [blame] | 1367 | sMaskGS = SkPDFGraphicState::GetNoSMaskGraphicState(); |
vandebo@chromium.org | 6112c21 | 2011-05-13 03:50:38 +0000 | [diff] [blame] | 1368 | sMaskGS->unref(); // SkRefPtr and getSMaskGraphicState both took a ref. |
| 1369 | SkPDFUtils::ApplyGraphicState(addGraphicStateResource(sMaskGS.get()), |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 1370 | &inClipContentEntry.entry()->fContent); |
vandebo@chromium.org | 6112c21 | 2011-05-13 03:50:38 +0000 | [diff] [blame] | 1371 | } |
| 1372 | |
vandebo@chromium.org | 481aef6 | 2011-05-24 16:39:05 +0000 | [diff] [blame] | 1373 | bool SkPDFDevice::isContentEmpty() { |
ctguil@chromium.org | 9510ccc | 2011-07-27 00:10:51 +0000 | [diff] [blame] | 1374 | ContentEntry* contentEntries = getContentEntries()->get(); |
| 1375 | if (!contentEntries || contentEntries->fContent.getOffset() == 0) { |
| 1376 | SkASSERT(!contentEntries || !contentEntries->fNext.get()); |
vandebo@chromium.org | 481aef6 | 2011-05-24 16:39:05 +0000 | [diff] [blame] | 1377 | return true; |
| 1378 | } |
| 1379 | return false; |
| 1380 | } |
| 1381 | |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 1382 | void SkPDFDevice::populateGraphicStateEntryFromPaint( |
| 1383 | const SkMatrix& matrix, |
| 1384 | const SkClipStack& clipStack, |
| 1385 | const SkRegion& clipRegion, |
| 1386 | const SkPaint& paint, |
| 1387 | bool hasText, |
| 1388 | GraphicStateEntry* entry) { |
vandebo@chromium.org | da912d6 | 2011-03-08 18:31:02 +0000 | [diff] [blame] | 1389 | SkASSERT(paint.getPathEffect() == NULL); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 1390 | |
vandebo@chromium.org | da912d6 | 2011-03-08 18:31:02 +0000 | [diff] [blame] | 1391 | NOT_IMPLEMENTED(paint.getMaskFilter() != NULL, false); |
| 1392 | NOT_IMPLEMENTED(paint.getColorFilter() != NULL, false); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 1393 | |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 1394 | entry->fMatrix = matrix; |
| 1395 | entry->fClipStack = clipStack; |
| 1396 | entry->fClipRegion = clipRegion; |
vandebo@chromium.org | 4854327 | 2011-02-08 19:28:07 +0000 | [diff] [blame] | 1397 | |
vandebo@chromium.org | da912d6 | 2011-03-08 18:31:02 +0000 | [diff] [blame] | 1398 | // PDF treats a shader as a color, so we only set one or the other. |
vandebo@chromium.org | 421d644 | 2011-07-20 17:39:01 +0000 | [diff] [blame] | 1399 | SkRefPtr<SkPDFObject> pdfShader; |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 1400 | const SkShader* shader = paint.getShader(); |
| 1401 | SkColor color = paint.getColor(); |
vandebo@chromium.org | da912d6 | 2011-03-08 18:31:02 +0000 | [diff] [blame] | 1402 | if (shader) { |
| 1403 | // PDF positions patterns relative to the initial transform, so |
| 1404 | // we need to apply the current transform to the shader parameters. |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 1405 | SkMatrix transform = matrix; |
vandebo@chromium.org | 75f97e4 | 2011-04-11 23:24:18 +0000 | [diff] [blame] | 1406 | transform.postConcat(fInitialTransform); |
vandebo@chromium.org | da912d6 | 2011-03-08 18:31:02 +0000 | [diff] [blame] | 1407 | |
| 1408 | // PDF doesn't support kClamp_TileMode, so we simulate it by making |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 1409 | // a pattern the size of the current clip. |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 1410 | SkIRect bounds = clipRegion.getBounds(); |
vandebo@chromium.org | 293a758 | 2012-03-16 19:50:37 +0000 | [diff] [blame^] | 1411 | |
| 1412 | // We need to apply the initial transform to bounds in order to get |
| 1413 | // bounds in a consistent coordinate system. |
| 1414 | SkRect boundsTemp; |
| 1415 | boundsTemp.set(bounds); |
| 1416 | fInitialTransform.mapRect(&boundsTemp); |
| 1417 | boundsTemp.roundOut(&bounds); |
| 1418 | |
reed@google.com | f6c3ebd | 2011-07-20 17:20:28 +0000 | [diff] [blame] | 1419 | pdfShader = SkPDFShader::GetPDFShader(*shader, transform, bounds); |
vandebo@chromium.org | da912d6 | 2011-03-08 18:31:02 +0000 | [diff] [blame] | 1420 | SkSafeUnref(pdfShader.get()); // getShader and SkRefPtr both took a ref |
| 1421 | |
vandebo@chromium.org | b88cfe5 | 2011-07-18 18:40:32 +0000 | [diff] [blame] | 1422 | if (pdfShader.get()) { |
| 1423 | // pdfShader has been canonicalized so we can directly compare |
| 1424 | // pointers. |
| 1425 | int resourceIndex = fShaderResources.find(pdfShader.get()); |
| 1426 | if (resourceIndex < 0) { |
| 1427 | resourceIndex = fShaderResources.count(); |
| 1428 | fShaderResources.push(pdfShader.get()); |
| 1429 | pdfShader->ref(); |
| 1430 | } |
| 1431 | entry->fShaderIndex = resourceIndex; |
| 1432 | } else { |
| 1433 | // A color shader is treated as an invalid shader so we don't have |
| 1434 | // to set a shader just for a color. |
| 1435 | entry->fShaderIndex = -1; |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 1436 | entry->fColor = 0; |
| 1437 | color = 0; |
vandebo@chromium.org | da912d6 | 2011-03-08 18:31:02 +0000 | [diff] [blame] | 1438 | |
| 1439 | // Check for a color shader. |
| 1440 | SkShader::GradientInfo gradientInfo; |
| 1441 | SkColor gradientColor; |
| 1442 | gradientInfo.fColors = &gradientColor; |
| 1443 | gradientInfo.fColorOffsets = NULL; |
| 1444 | gradientInfo.fColorCount = 1; |
| 1445 | if (shader->asAGradient(&gradientInfo) == |
| 1446 | SkShader::kColor_GradientType) { |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 1447 | entry->fColor = SkColorSetA(gradientColor, 0xFF); |
| 1448 | color = gradientColor; |
vandebo@chromium.org | da912d6 | 2011-03-08 18:31:02 +0000 | [diff] [blame] | 1449 | } |
| 1450 | } |
vandebo@chromium.org | da912d6 | 2011-03-08 18:31:02 +0000 | [diff] [blame] | 1451 | } else { |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 1452 | entry->fShaderIndex = -1; |
| 1453 | entry->fColor = SkColorSetA(paint.getColor(), 0xFF); |
| 1454 | color = paint.getColor(); |
vandebo@chromium.org | da912d6 | 2011-03-08 18:31:02 +0000 | [diff] [blame] | 1455 | } |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 1456 | |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 1457 | SkRefPtr<SkPDFGraphicState> newGraphicState; |
| 1458 | if (color == paint.getColor()) { |
reed@google.com | f6c3ebd | 2011-07-20 17:20:28 +0000 | [diff] [blame] | 1459 | newGraphicState = SkPDFGraphicState::GetGraphicStateForPaint(paint); |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 1460 | } else { |
| 1461 | SkPaint newPaint = paint; |
| 1462 | newPaint.setColor(color); |
reed@google.com | f6c3ebd | 2011-07-20 17:20:28 +0000 | [diff] [blame] | 1463 | newGraphicState = SkPDFGraphicState::GetGraphicStateForPaint(newPaint); |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 1464 | } |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 1465 | newGraphicState->unref(); // getGraphicState and SkRefPtr both took a ref. |
vandebo@chromium.org | 6112c21 | 2011-05-13 03:50:38 +0000 | [diff] [blame] | 1466 | int resourceIndex = addGraphicStateResource(newGraphicState.get()); |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 1467 | entry->fGraphicStateIndex = resourceIndex; |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 1468 | |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 1469 | if (hasText) { |
| 1470 | entry->fTextScaleX = paint.getTextScaleX(); |
| 1471 | entry->fTextFill = paint.getStyle(); |
| 1472 | } else { |
| 1473 | entry->fTextScaleX = 0; |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 1474 | } |
| 1475 | } |
| 1476 | |
vandebo@chromium.org | 6112c21 | 2011-05-13 03:50:38 +0000 | [diff] [blame] | 1477 | int SkPDFDevice::addGraphicStateResource(SkPDFGraphicState* gs) { |
| 1478 | // Assumes that gs has been canonicalized (so we can directly compare |
| 1479 | // pointers). |
| 1480 | int result = fGraphicStateResources.find(gs); |
| 1481 | if (result < 0) { |
| 1482 | result = fGraphicStateResources.count(); |
| 1483 | fGraphicStateResources.push(gs); |
| 1484 | gs->ref(); |
| 1485 | } |
| 1486 | return result; |
| 1487 | } |
| 1488 | |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 1489 | void SkPDFDevice::updateFont(const SkPaint& paint, uint16_t glyphID, |
| 1490 | ContentEntry* contentEntry) { |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 1491 | SkTypeface* typeface = paint.getTypeface(); |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 1492 | if (contentEntry->fState.fFont == NULL || |
| 1493 | contentEntry->fState.fTextSize != paint.getTextSize() || |
| 1494 | !contentEntry->fState.fFont->hasGlyph(glyphID)) { |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 1495 | int fontIndex = getFontResourceIndex(typeface, glyphID); |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 1496 | contentEntry->fContent.writeText("/F"); |
| 1497 | contentEntry->fContent.writeDecAsText(fontIndex); |
| 1498 | contentEntry->fContent.writeText(" "); |
| 1499 | SkPDFScalar::Append(paint.getTextSize(), &contentEntry->fContent); |
| 1500 | contentEntry->fContent.writeText(" Tf\n"); |
| 1501 | contentEntry->fState.fFont = fFontResources[fontIndex]; |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 1502 | } |
| 1503 | } |
| 1504 | |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 1505 | int SkPDFDevice::getFontResourceIndex(SkTypeface* typeface, uint16_t glyphID) { |
reed@google.com | f6c3ebd | 2011-07-20 17:20:28 +0000 | [diff] [blame] | 1506 | SkRefPtr<SkPDFFont> newFont = SkPDFFont::GetFontResource(typeface, glyphID); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 1507 | newFont->unref(); // getFontResource and SkRefPtr both took a ref. |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 1508 | int resourceIndex = fFontResources.find(newFont.get()); |
| 1509 | if (resourceIndex < 0) { |
| 1510 | resourceIndex = fFontResources.count(); |
| 1511 | fFontResources.push(newFont.get()); |
| 1512 | newFont->ref(); |
| 1513 | } |
| 1514 | return resourceIndex; |
| 1515 | } |
| 1516 | |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 1517 | void SkPDFDevice::internalDrawBitmap(const SkMatrix& matrix, |
vandebo@chromium.org | 78dad54 | 2011-05-11 18:46:03 +0000 | [diff] [blame] | 1518 | const SkClipStack* clipStack, |
vandebo@chromium.org | 9fbdf87 | 2011-05-09 07:55:58 +0000 | [diff] [blame] | 1519 | const SkRegion& clipRegion, |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 1520 | const SkBitmap& bitmap, |
vandebo@chromium.org | befebb8 | 2011-01-29 01:38:50 +0000 | [diff] [blame] | 1521 | const SkIRect* srcRect, |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 1522 | const SkPaint& paint) { |
vandebo@chromium.org | 7e2ff7c | 2010-11-03 23:55:28 +0000 | [diff] [blame] | 1523 | SkMatrix scaled; |
| 1524 | // Adjust for origin flip. |
vandebo@chromium.org | 663515b | 2012-01-05 18:45:27 +0000 | [diff] [blame] | 1525 | scaled.setScale(SK_Scalar1, -SK_Scalar1); |
| 1526 | scaled.postTranslate(0, SK_Scalar1); |
vandebo@chromium.org | 7e2ff7c | 2010-11-03 23:55:28 +0000 | [diff] [blame] | 1527 | // Scale the image up from 1x1 to WxH. |
vandebo@chromium.org | 25adce8 | 2011-05-09 08:05:01 +0000 | [diff] [blame] | 1528 | SkIRect subset = SkIRect::MakeWH(bitmap.width(), bitmap.height()); |
reed@google.com | a6d59f6 | 2011-03-07 21:29:21 +0000 | [diff] [blame] | 1529 | scaled.postScale(SkIntToScalar(subset.width()), |
| 1530 | SkIntToScalar(subset.height())); |
vandebo@chromium.org | 7e2ff7c | 2010-11-03 23:55:28 +0000 | [diff] [blame] | 1531 | scaled.postConcat(matrix); |
vandebo@chromium.org | 13d14a9 | 2011-05-24 23:12:41 +0000 | [diff] [blame] | 1532 | ScopedContentEntry content(this, clipStack, clipRegion, scaled, paint); |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 1533 | if (!content.entry()) { |
vandebo@chromium.org | 25adce8 | 2011-05-09 08:05:01 +0000 | [diff] [blame] | 1534 | return; |
| 1535 | } |
| 1536 | |
| 1537 | if (srcRect && !subset.intersect(*srcRect)) { |
| 1538 | return; |
| 1539 | } |
| 1540 | |
| 1541 | SkPDFImage* image = SkPDFImage::CreateImage(bitmap, subset, paint); |
| 1542 | if (!image) { |
| 1543 | return; |
| 1544 | } |
vandebo@chromium.org | 7e2ff7c | 2010-11-03 23:55:28 +0000 | [diff] [blame] | 1545 | |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 1546 | fXObjectResources.push(image); // Transfer reference. |
vandebo@chromium.org | 6112c21 | 2011-05-13 03:50:38 +0000 | [diff] [blame] | 1547 | SkPDFUtils::DrawFormXObject(fXObjectResources.count() - 1, |
vandebo@chromium.org | b069c8c | 2011-05-24 17:19:38 +0000 | [diff] [blame] | 1548 | &content.entry()->fContent); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 1549 | } |
reed@google.com | 982cb87 | 2011-12-07 18:34:08 +0000 | [diff] [blame] | 1550 | |
| 1551 | bool SkPDFDevice::onReadPixels(const SkBitmap& bitmap, int x, int y, |
| 1552 | SkCanvas::Config8888) { |
| 1553 | return false; |
| 1554 | } |
reed@google.com | b55deeb | 2012-01-06 14:43:09 +0000 | [diff] [blame] | 1555 | |
| 1556 | bool SkPDFDevice::allowImageFilter(SkImageFilter*) { |
| 1557 | return false; |
| 1558 | } |
| 1559 | |