vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 1 | /* |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 2 | * Copyright (C) 2011 Google Inc. |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include "SkPDFDevice.h" |
| 18 | |
| 19 | #include "SkColor.h" |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 20 | #include "SkGlyphCache.h" |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 21 | #include "SkPaint.h" |
vandebo@chromium.org | a518086 | 2010-10-26 19:48:49 +0000 | [diff] [blame] | 22 | #include "SkPath.h" |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 23 | #include "SkPDFImage.h" |
| 24 | #include "SkPDFGraphicState.h" |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 25 | #include "SkPDFFont.h" |
vandebo@chromium.org | eb6c759 | 2010-10-26 19:54:45 +0000 | [diff] [blame] | 26 | #include "SkPDFFormXObject.h" |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 27 | #include "SkPDFTypes.h" |
| 28 | #include "SkPDFStream.h" |
| 29 | #include "SkRect.h" |
| 30 | #include "SkString.h" |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 31 | #include "SkTextFormatParams.h" |
| 32 | #include "SkTypeface.h" |
| 33 | #include "SkTypes.h" |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 34 | |
vandebo@chromium.org | a518086 | 2010-10-26 19:48:49 +0000 | [diff] [blame] | 35 | #define NOT_IMPLEMENTED(condition, assert) \ |
| 36 | do { \ |
| 37 | if (condition) { \ |
| 38 | fprintf(stderr, "NOT_IMPLEMENTED: " #condition "\n"); \ |
vandebo@chromium.org | fb697e7 | 2011-02-01 01:04:00 +0000 | [diff] [blame] | 39 | SkDEBUGCODE(SkASSERT(!assert);) \ |
vandebo@chromium.org | a518086 | 2010-10-26 19:48:49 +0000 | [diff] [blame] | 40 | } \ |
| 41 | } while(0) |
| 42 | |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 43 | // Utility functions |
| 44 | |
| 45 | namespace { |
| 46 | |
| 47 | SkString toPDFColor(SkColor color) { |
| 48 | SkASSERT(SkColorGetA(color) == 0xFF); // We handle alpha elsewhere. |
| 49 | SkScalar colorMax = SkIntToScalar(0xFF); |
| 50 | SkString result; |
vandebo@chromium.org | a518086 | 2010-10-26 19:48:49 +0000 | [diff] [blame] | 51 | result.appendScalar(SkScalarDiv(SkIntToScalar(SkColorGetR(color)), |
| 52 | colorMax)); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 53 | result.append(" "); |
vandebo@chromium.org | a518086 | 2010-10-26 19:48:49 +0000 | [diff] [blame] | 54 | result.appendScalar(SkScalarDiv(SkIntToScalar(SkColorGetG(color)), |
| 55 | colorMax)); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 56 | result.append(" "); |
vandebo@chromium.org | a518086 | 2010-10-26 19:48:49 +0000 | [diff] [blame] | 57 | result.appendScalar(SkScalarDiv(SkIntToScalar(SkColorGetB(color)), |
| 58 | colorMax)); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 59 | result.append(" "); |
| 60 | return result; |
| 61 | } |
| 62 | |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 63 | SkPaint calculateTextPaint(const SkPaint& paint) { |
| 64 | SkPaint result = paint; |
| 65 | if (result.isFakeBoldText()) { |
| 66 | SkScalar fakeBoldScale = SkScalarInterpFunc(result.getTextSize(), |
| 67 | kStdFakeBoldInterpKeys, |
| 68 | kStdFakeBoldInterpValues, |
| 69 | kStdFakeBoldInterpLength); |
| 70 | SkScalar width = SkScalarMul(result.getTextSize(), fakeBoldScale); |
| 71 | if (result.getStyle() == SkPaint::kFill_Style) |
| 72 | result.setStyle(SkPaint::kStrokeAndFill_Style); |
| 73 | else |
| 74 | width += result.getStrokeWidth(); |
| 75 | result.setStrokeWidth(width); |
| 76 | } |
| 77 | return result; |
| 78 | } |
| 79 | |
| 80 | // Stolen from measure_text in SkDraw.cpp and then tweaked. |
| 81 | void alignText(SkDrawCacheProc glyphCacheProc, const SkPaint& paint, |
| 82 | const uint16_t* glyphs, size_t len, SkScalar* x, SkScalar* y, |
| 83 | SkScalar* width) { |
| 84 | if (paint.getTextAlign() == SkPaint::kLeft_Align && width == NULL) |
| 85 | return; |
| 86 | |
| 87 | SkMatrix ident; |
| 88 | ident.reset(); |
| 89 | SkAutoGlyphCache autoCache(paint, &ident); |
| 90 | SkGlyphCache* cache = autoCache.getCache(); |
| 91 | |
| 92 | const char* start = (char*)glyphs; |
| 93 | const char* stop = (char*)(glyphs + len); |
| 94 | SkFixed xAdv = 0, yAdv = 0; |
| 95 | |
| 96 | // TODO(vandebo) This probably needs to take kerning into account. |
| 97 | while (start < stop) { |
| 98 | const SkGlyph& glyph = glyphCacheProc(cache, &start, 0, 0); |
| 99 | xAdv += glyph.fAdvanceX; |
| 100 | yAdv += glyph.fAdvanceY; |
| 101 | }; |
| 102 | if (width) |
| 103 | *width = SkFixedToScalar(xAdv); |
| 104 | if (paint.getTextAlign() == SkPaint::kLeft_Align) |
| 105 | return; |
| 106 | |
| 107 | SkScalar xAdj = SkFixedToScalar(xAdv); |
| 108 | SkScalar yAdj = SkFixedToScalar(yAdv); |
| 109 | if (paint.getTextAlign() == SkPaint::kCenter_Align) { |
| 110 | xAdj = SkScalarHalf(xAdj); |
| 111 | yAdj = SkScalarHalf(yAdj); |
| 112 | } |
| 113 | *x = *x - xAdj; |
| 114 | *y = *y - yAdj; |
| 115 | } |
| 116 | |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 117 | } // namespace |
| 118 | |
| 119 | //////////////////////////////////////////////////////////////////////////////// |
| 120 | |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 121 | SkDevice* SkPDFDeviceFactory::newDevice(SkCanvas*, SkBitmap::Config config, |
| 122 | int width, int height, bool isOpaque, |
vandebo@chromium.org | f60a001 | 2011-02-24 23:14:04 +0000 | [diff] [blame] | 123 | bool isForLayer) { |
| 124 | SkPDFDevice::OriginTransform flip = SkPDFDevice::kFlip_OriginTransform; |
| 125 | if (isForLayer) { |
| 126 | flip = SkPDFDevice::kNoFlip_OriginTransform; |
| 127 | } |
| 128 | return SkNEW_ARGS(SkPDFDevice, (width, height, flip)); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 129 | } |
| 130 | |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 131 | static inline SkBitmap makeABitmap(int width, int height) { |
| 132 | SkBitmap bitmap; |
| 133 | bitmap.setConfig(SkBitmap::kNo_Config, width, height); |
| 134 | return bitmap; |
| 135 | } |
| 136 | |
vandebo@chromium.org | f60a001 | 2011-02-24 23:14:04 +0000 | [diff] [blame] | 137 | SkPDFDevice::SkPDFDevice(int width, int height, OriginTransform flipOrigin) |
reed@google.com | 0770044 | 2010-12-20 19:46:07 +0000 | [diff] [blame] | 138 | : SkDevice(NULL, makeABitmap(width, height), false), |
vandebo@chromium.org | 4854327 | 2011-02-08 19:28:07 +0000 | [diff] [blame] | 139 | fWidth(width), |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 140 | fHeight(height), |
vandebo@chromium.org | f60a001 | 2011-02-24 23:14:04 +0000 | [diff] [blame] | 141 | fFlipOrigin(flipOrigin), |
reed@google.com | 0770044 | 2010-12-20 19:46:07 +0000 | [diff] [blame] | 142 | fGraphicStackIndex(0) { |
vandebo@chromium.org | 7e2ff7c | 2010-11-03 23:55:28 +0000 | [diff] [blame] | 143 | fGraphicStack[0].fColor = SK_ColorBLACK; |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 144 | fGraphicStack[0].fTextSize = SK_ScalarNaN; // This has no default value. |
vandebo@chromium.org | 7e2ff7c | 2010-11-03 23:55:28 +0000 | [diff] [blame] | 145 | fGraphicStack[0].fTextScaleX = SK_Scalar1; |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 146 | fGraphicStack[0].fTextFill = SkPaint::kFill_Style; |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 147 | fGraphicStack[0].fFont = NULL; |
| 148 | fGraphicStack[0].fGraphicState = NULL; |
vandebo@chromium.org | 7e2ff7c | 2010-11-03 23:55:28 +0000 | [diff] [blame] | 149 | fGraphicStack[0].fClip.setRect(0,0, width, height); |
| 150 | fGraphicStack[0].fTransform.reset(); |
vandebo@chromium.org | f60a001 | 2011-02-24 23:14:04 +0000 | [diff] [blame] | 151 | |
| 152 | if (flipOrigin == kFlip_OriginTransform) { |
| 153 | fContent.printf("1 0 0 -1 0 %d cm\n", fHeight); |
| 154 | } |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 155 | } |
| 156 | |
| 157 | SkPDFDevice::~SkPDFDevice() { |
| 158 | fGraphicStateResources.unrefAll(); |
| 159 | fXObjectResources.unrefAll(); |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 160 | fFontResources.unrefAll(); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 161 | } |
| 162 | |
| 163 | void SkPDFDevice::setMatrixClip(const SkMatrix& matrix, |
reed@google.com | 46799cd | 2011-02-22 20:56:26 +0000 | [diff] [blame] | 164 | const SkRegion& region, |
| 165 | const SkClipStack&) { |
vandebo@chromium.org | 7e2ff7c | 2010-11-03 23:55:28 +0000 | [diff] [blame] | 166 | // See the comment in the header file above GraphicStackEntry. |
| 167 | if (region != fGraphicStack[fGraphicStackIndex].fClip) { |
| 168 | while (fGraphicStackIndex > 0) |
| 169 | popGS(); |
| 170 | pushGS(); |
| 171 | |
| 172 | SkPath clipPath; |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 173 | if (region.getBoundaryPath(&clipPath)) { |
| 174 | emitPath(clipPath); |
vandebo@chromium.org | 7e2ff7c | 2010-11-03 23:55:28 +0000 | [diff] [blame] | 175 | |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 176 | SkPath::FillType clipFill = clipPath.getFillType(); |
| 177 | NOT_IMPLEMENTED(clipFill == SkPath::kInverseEvenOdd_FillType, |
| 178 | false); |
| 179 | NOT_IMPLEMENTED(clipFill == SkPath::kInverseWinding_FillType, |
| 180 | false); |
| 181 | if (clipFill == SkPath::kEvenOdd_FillType) |
| 182 | fContent.append("W* n "); |
| 183 | else |
| 184 | fContent.append("W n "); |
| 185 | } |
vandebo@chromium.org | 7e2ff7c | 2010-11-03 23:55:28 +0000 | [diff] [blame] | 186 | |
| 187 | fGraphicStack[fGraphicStackIndex].fClip = region; |
| 188 | } |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 189 | setTransform(matrix); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 190 | } |
| 191 | |
| 192 | void SkPDFDevice::drawPaint(const SkDraw& d, const SkPaint& paint) { |
vandebo@chromium.org | 7e2ff7c | 2010-11-03 23:55:28 +0000 | [diff] [blame] | 193 | SkMatrix identityTransform; |
| 194 | identityTransform.reset(); |
| 195 | SkMatrix curTransform = setTransform(identityTransform); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 196 | |
| 197 | SkPaint newPaint = paint; |
| 198 | newPaint.setStyle(SkPaint::kFill_Style); |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 199 | updateGSFromPaint(newPaint, false); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 200 | |
| 201 | SkRect all = SkRect::MakeWH(width() + 1, height() + 1); |
| 202 | drawRect(d, all, newPaint); |
vandebo@chromium.org | 7e2ff7c | 2010-11-03 23:55:28 +0000 | [diff] [blame] | 203 | setTransform(curTransform); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 204 | } |
| 205 | |
| 206 | void SkPDFDevice::drawPoints(const SkDraw& d, SkCanvas::PointMode mode, |
| 207 | size_t count, const SkPoint* points, |
| 208 | const SkPaint& paint) { |
| 209 | if (count == 0) |
| 210 | return; |
| 211 | |
| 212 | switch (mode) { |
| 213 | case SkCanvas::kPolygon_PointMode: |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 214 | updateGSFromPaint(paint, false); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 215 | moveTo(points[0].fX, points[0].fY); |
| 216 | for (size_t i = 1; i < count; i++) |
| 217 | appendLine(points[i].fX, points[i].fY); |
| 218 | strokePath(); |
| 219 | break; |
| 220 | case SkCanvas::kLines_PointMode: |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 221 | updateGSFromPaint(paint, false); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 222 | for (size_t i = 0; i < count/2; i++) { |
| 223 | moveTo(points[i * 2].fX, points[i * 2].fY); |
| 224 | appendLine(points[i * 2 + 1].fX, points[i * 2 + 1].fY); |
| 225 | strokePath(); |
| 226 | } |
| 227 | break; |
| 228 | case SkCanvas::kPoints_PointMode: |
| 229 | if (paint.getStrokeCap() == SkPaint::kRound_Cap) { |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 230 | updateGSFromPaint(paint, false); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 231 | for (size_t i = 0; i < count; i++) { |
| 232 | moveTo(points[i].fX, points[i].fY); |
| 233 | strokePath(); |
| 234 | } |
| 235 | } else { |
| 236 | // PDF won't draw a single point with square/butt caps because |
| 237 | // the orientation is ambiguous. Draw a rectangle instead. |
| 238 | SkPaint newPaint = paint; |
| 239 | newPaint.setStyle(SkPaint::kFill_Style); |
| 240 | SkScalar strokeWidth = paint.getStrokeWidth(); |
| 241 | SkScalar halfStroke = strokeWidth * SK_ScalarHalf; |
| 242 | for (size_t i = 0; i < count; i++) { |
| 243 | SkRect r = SkRect::MakeXYWH(points[i].fX, points[i].fY, |
| 244 | 0, 0); |
| 245 | r.inset(-halfStroke, -halfStroke); |
| 246 | drawRect(d, r, newPaint); |
| 247 | } |
| 248 | } |
| 249 | break; |
| 250 | default: |
| 251 | SkASSERT(false); |
| 252 | } |
| 253 | } |
| 254 | |
| 255 | void SkPDFDevice::drawRect(const SkDraw& d, const SkRect& r, |
| 256 | const SkPaint& paint) { |
| 257 | if (paint.getPathEffect()) { |
vandebo@chromium.org | 7d71f7f | 2010-10-26 19:51:44 +0000 | [diff] [blame] | 258 | // Create a path for the rectangle and apply the path effect to it. |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 259 | SkPath path; |
| 260 | path.addRect(r); |
| 261 | paint.getFillPath(path, &path); |
| 262 | |
vandebo@chromium.org | 7e2ff7c | 2010-11-03 23:55:28 +0000 | [diff] [blame] | 263 | SkPaint noEffectPaint(paint); |
| 264 | SkSafeUnref(noEffectPaint.setPathEffect(NULL)); |
vandebo@chromium.org | 02cc5aa | 2011-01-25 22:06:29 +0000 | [diff] [blame] | 265 | drawPath(d, path, noEffectPaint, NULL, true); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 266 | return; |
| 267 | } |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 268 | updateGSFromPaint(paint, false); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 269 | |
| 270 | // Skia has 0,0 at top left, pdf at bottom left. Do the right thing. |
| 271 | SkScalar bottom = r.fBottom < r.fTop ? r.fBottom : r.fTop; |
| 272 | appendRectangle(r.fLeft, bottom, r.width(), r.height()); |
vandebo@chromium.org | a518086 | 2010-10-26 19:48:49 +0000 | [diff] [blame] | 273 | paintPath(paint.getStyle(), SkPath::kWinding_FillType); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 274 | } |
| 275 | |
vandebo@chromium.org | 7d71f7f | 2010-10-26 19:51:44 +0000 | [diff] [blame] | 276 | void SkPDFDevice::drawPath(const SkDraw& d, const SkPath& path, |
vandebo@chromium.org | 02cc5aa | 2011-01-25 22:06:29 +0000 | [diff] [blame] | 277 | const SkPaint& paint, const SkMatrix* prePathMatrix, |
| 278 | bool pathIsMutable) { |
vandebo@chromium.org | befebb8 | 2011-01-29 01:38:50 +0000 | [diff] [blame] | 279 | NOT_IMPLEMENTED(prePathMatrix != NULL, true); |
vandebo@chromium.org | 02cc5aa | 2011-01-25 22:06:29 +0000 | [diff] [blame] | 280 | |
vandebo@chromium.org | 7d71f7f | 2010-10-26 19:51:44 +0000 | [diff] [blame] | 281 | if (paint.getPathEffect()) { |
| 282 | // Apply the path effect to path and draw it that way. |
vandebo@chromium.org | 7e2ff7c | 2010-11-03 23:55:28 +0000 | [diff] [blame] | 283 | SkPath noEffectPath; |
| 284 | paint.getFillPath(path, &noEffectPath); |
vandebo@chromium.org | 7d71f7f | 2010-10-26 19:51:44 +0000 | [diff] [blame] | 285 | |
vandebo@chromium.org | 7e2ff7c | 2010-11-03 23:55:28 +0000 | [diff] [blame] | 286 | SkPaint noEffectPaint(paint); |
| 287 | SkSafeUnref(noEffectPaint.setPathEffect(NULL)); |
vandebo@chromium.org | 02cc5aa | 2011-01-25 22:06:29 +0000 | [diff] [blame] | 288 | drawPath(d, noEffectPath, noEffectPaint, NULL, true); |
vandebo@chromium.org | 7d71f7f | 2010-10-26 19:51:44 +0000 | [diff] [blame] | 289 | return; |
| 290 | } |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 291 | updateGSFromPaint(paint, false); |
vandebo@chromium.org | 7d71f7f | 2010-10-26 19:51:44 +0000 | [diff] [blame] | 292 | |
vandebo@chromium.org | 7e2ff7c | 2010-11-03 23:55:28 +0000 | [diff] [blame] | 293 | emitPath(path); |
vandebo@chromium.org | 7d71f7f | 2010-10-26 19:51:44 +0000 | [diff] [blame] | 294 | paintPath(paint.getStyle(), path.getFillType()); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 295 | } |
| 296 | |
| 297 | void SkPDFDevice::drawBitmap(const SkDraw&, const SkBitmap& bitmap, |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 298 | const SkIRect* srcRect, |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 299 | const SkMatrix& matrix, const SkPaint& paint) { |
vandebo@chromium.org | 7e2ff7c | 2010-11-03 23:55:28 +0000 | [diff] [blame] | 300 | SkMatrix transform = matrix; |
| 301 | transform.postConcat(fGraphicStack[fGraphicStackIndex].fTransform); |
vandebo@chromium.org | befebb8 | 2011-01-29 01:38:50 +0000 | [diff] [blame] | 302 | internalDrawBitmap(transform, bitmap, srcRect, paint); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 303 | } |
| 304 | |
| 305 | void SkPDFDevice::drawSprite(const SkDraw&, const SkBitmap& bitmap, |
| 306 | int x, int y, const SkPaint& paint) { |
vandebo@chromium.org | 7e2ff7c | 2010-11-03 23:55:28 +0000 | [diff] [blame] | 307 | SkMatrix matrix; |
| 308 | matrix.setTranslate(x, y); |
vandebo@chromium.org | befebb8 | 2011-01-29 01:38:50 +0000 | [diff] [blame] | 309 | internalDrawBitmap(matrix, bitmap, NULL, paint); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 310 | } |
| 311 | |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 312 | 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] | 313 | SkScalar x, SkScalar y, const SkPaint& paint) { |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 314 | SkPaint textPaint = calculateTextPaint(paint); |
| 315 | updateGSFromPaint(textPaint, true); |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 316 | |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 317 | // Make sure we have a glyph id encoding. |
| 318 | SkAutoFree glyphStorage; |
| 319 | uint16_t* glyphIDs; |
| 320 | size_t numGlyphs; |
| 321 | if (paint.getTextEncoding() != SkPaint::kGlyphID_TextEncoding) { |
| 322 | numGlyphs = paint.textToGlyphs(text, len, NULL); |
| 323 | glyphIDs = (uint16_t*)sk_malloc_flags(numGlyphs * 2, |
| 324 | SK_MALLOC_TEMP | SK_MALLOC_THROW); |
| 325 | glyphStorage.set(glyphIDs); |
| 326 | paint.textToGlyphs(text, len, glyphIDs); |
| 327 | textPaint.setTextEncoding(SkPaint::kGlyphID_TextEncoding); |
| 328 | } else { |
| 329 | SkASSERT((len & 1) == 0); |
| 330 | numGlyphs = len / 2; |
| 331 | glyphIDs = (uint16_t*)text; |
| 332 | } |
| 333 | SkAutoFree encodedStorage( |
| 334 | sk_malloc_flags(numGlyphs * 2, SK_MALLOC_TEMP | SK_MALLOC_THROW)); |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 335 | |
| 336 | SkScalar width; |
| 337 | SkScalar* widthPtr = NULL; |
| 338 | if (textPaint.isUnderlineText() || textPaint.isStrikeThruText()) |
| 339 | widthPtr = &width; |
| 340 | |
| 341 | SkDrawCacheProc glyphCacheProc = textPaint.getDrawCacheProc(); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 342 | alignText(glyphCacheProc, textPaint, glyphIDs, numGlyphs, &x, &y, widthPtr); |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 343 | fContent.append("BT\n"); |
| 344 | setTextTransform(x, y, textPaint.getTextSkewX()); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 345 | size_t consumedGlyphCount = 0; |
| 346 | while (numGlyphs > consumedGlyphCount) { |
| 347 | updateFont(textPaint, glyphIDs[consumedGlyphCount]); |
| 348 | SkPDFFont* font = fGraphicStack[fGraphicStackIndex].fFont; |
| 349 | size_t encodedLength = numGlyphs * 2; |
| 350 | consumedGlyphCount += font->glyphsToPDFFontEncoding( |
| 351 | glyphIDs + consumedGlyphCount, numGlyphs - consumedGlyphCount, |
| 352 | encodedStorage.get(), &encodedLength); |
| 353 | if (font->multiByteGlyphs()) |
| 354 | encodedLength /= 2; |
| 355 | fContent.append( |
| 356 | SkPDFString::formatString((const uint16_t*)encodedStorage.get(), |
| 357 | encodedLength, |
| 358 | font->multiByteGlyphs())); |
| 359 | fContent.append(" Tj\n"); |
| 360 | } |
| 361 | fContent.append("ET\n"); |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 362 | |
| 363 | // Draw underline and/or strikethrough if the paint has them. |
| 364 | // drawPosText() and drawTextOnPath() don't draw underline or strikethrough |
| 365 | // because the raster versions don't. Use paint instead of textPaint |
| 366 | // because we may have changed strokeWidth to do fakeBold text. |
| 367 | if (paint.isUnderlineText() || paint.isStrikeThruText()) { |
| 368 | SkScalar textSize = paint.getTextSize(); |
| 369 | SkScalar height = SkScalarMul(textSize, kStdUnderline_Thickness); |
| 370 | |
| 371 | if (paint.isUnderlineText()) { |
| 372 | SkScalar top = SkScalarMulAdd(textSize, kStdUnderline_Offset, y); |
| 373 | SkRect r = SkRect::MakeXYWH(x, top - height, width, height); |
| 374 | drawRect(d, r, paint); |
| 375 | } |
| 376 | if (paint.isStrikeThruText()) { |
| 377 | SkScalar top = SkScalarMulAdd(textSize, kStdStrikeThru_Offset, y); |
| 378 | SkRect r = SkRect::MakeXYWH(x, top - height, width, height); |
| 379 | drawRect(d, r, paint); |
| 380 | } |
| 381 | } |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 382 | } |
| 383 | |
| 384 | void SkPDFDevice::drawPosText(const SkDraw&, const void* text, size_t len, |
| 385 | const SkScalar pos[], SkScalar constY, |
| 386 | int scalarsPerPos, const SkPaint& paint) { |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 387 | SkASSERT(1 == scalarsPerPos || 2 == scalarsPerPos); |
| 388 | SkPaint textPaint = calculateTextPaint(paint); |
| 389 | updateGSFromPaint(textPaint, true); |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 390 | |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 391 | // Make sure we have a glyph id encoding. |
| 392 | SkAutoFree glyphStorage; |
| 393 | uint16_t* glyphIDs; |
| 394 | size_t numGlyphs; |
| 395 | if (paint.getTextEncoding() != SkPaint::kGlyphID_TextEncoding) { |
| 396 | numGlyphs = paint.textToGlyphs(text, len, NULL); |
| 397 | glyphIDs = (uint16_t*)sk_malloc_flags(numGlyphs * 2, |
| 398 | SK_MALLOC_TEMP | SK_MALLOC_THROW); |
| 399 | glyphStorage.set(glyphIDs); |
| 400 | paint.textToGlyphs(text, len, glyphIDs); |
| 401 | textPaint.setTextEncoding(SkPaint::kGlyphID_TextEncoding); |
| 402 | } else { |
| 403 | SkASSERT((len & 1) == 0); |
| 404 | numGlyphs = len / 2; |
| 405 | glyphIDs = (uint16_t*)text; |
| 406 | } |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 407 | |
| 408 | SkDrawCacheProc glyphCacheProc = textPaint.getDrawCacheProc(); |
| 409 | fContent.append("BT\n"); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 410 | updateFont(textPaint, glyphIDs[0]); |
| 411 | for (size_t i = 0; i < numGlyphs; i++) { |
| 412 | SkPDFFont* font = fGraphicStack[fGraphicStackIndex].fFont; |
| 413 | uint16_t encodedValue; |
| 414 | size_t encodedLength = 2; |
| 415 | if (font->glyphsToPDFFontEncoding(glyphIDs + i, 1, &encodedValue, |
| 416 | &encodedLength) == 0) { |
| 417 | updateFont(textPaint, glyphIDs[i]); |
| 418 | i--; |
| 419 | continue; |
| 420 | } |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 421 | SkScalar x = pos[i * scalarsPerPos]; |
| 422 | SkScalar y = scalarsPerPos == 1 ? constY : pos[i * scalarsPerPos + 1]; |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 423 | alignText(glyphCacheProc, textPaint, glyphIDs + i, 1, &x, &y, NULL); |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 424 | setTextTransform(x, y, textPaint.getTextSkewX()); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 425 | fContent.append(SkPDFString::formatString(&encodedValue, 1, |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 426 | font->multiByteGlyphs())); |
| 427 | fContent.append(" Tj\n"); |
| 428 | } |
| 429 | fContent.append("ET\n"); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 430 | } |
| 431 | |
| 432 | void SkPDFDevice::drawTextOnPath(const SkDraw&, const void* text, size_t len, |
| 433 | const SkPath& path, const SkMatrix* matrix, |
| 434 | const SkPaint& paint) { |
vandebo@chromium.org | a518086 | 2010-10-26 19:48:49 +0000 | [diff] [blame] | 435 | NOT_IMPLEMENTED("drawTextOnPath", true); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 436 | } |
| 437 | |
| 438 | void SkPDFDevice::drawVertices(const SkDraw&, SkCanvas::VertexMode, |
| 439 | int vertexCount, const SkPoint verts[], |
| 440 | const SkPoint texs[], const SkColor colors[], |
| 441 | SkXfermode* xmode, const uint16_t indices[], |
| 442 | int indexCount, const SkPaint& paint) { |
vandebo@chromium.org | a518086 | 2010-10-26 19:48:49 +0000 | [diff] [blame] | 443 | NOT_IMPLEMENTED("drawVerticies", true); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 444 | } |
| 445 | |
vandebo@chromium.org | eb6c759 | 2010-10-26 19:54:45 +0000 | [diff] [blame] | 446 | void SkPDFDevice::drawDevice(const SkDraw& d, SkDevice* device, int x, int y, |
| 447 | const SkPaint& paint) { |
| 448 | if ((device->getDeviceCapabilities() & kVector_Capability) == 0) { |
| 449 | // If we somehow get a raster device, do what our parent would do. |
| 450 | SkDevice::drawDevice(d, device, x, y, paint); |
| 451 | return; |
| 452 | } |
vandebo@chromium.org | eb6c759 | 2010-10-26 19:54:45 +0000 | [diff] [blame] | 453 | // Assume that a vector capable device means that it's a PDF Device. |
vandebo@chromium.org | eb6c759 | 2010-10-26 19:54:45 +0000 | [diff] [blame] | 454 | SkPDFDevice* pdfDevice = static_cast<SkPDFDevice*>(device); |
| 455 | |
vandebo@chromium.org | 1aef2ed | 2011-02-03 21:46:10 +0000 | [diff] [blame] | 456 | SkMatrix matrix; |
| 457 | matrix.setTranslate(x, y); |
| 458 | SkMatrix curTransform = setTransform(matrix); |
vandebo@chromium.org | 4854327 | 2011-02-08 19:28:07 +0000 | [diff] [blame] | 459 | updateGSFromPaint(paint, false); |
vandebo@chromium.org | 1aef2ed | 2011-02-03 21:46:10 +0000 | [diff] [blame] | 460 | |
| 461 | SkPDFFormXObject* xobject = new SkPDFFormXObject(pdfDevice); |
vandebo@chromium.org | eb6c759 | 2010-10-26 19:54:45 +0000 | [diff] [blame] | 462 | fXObjectResources.push(xobject); // Transfer reference. |
| 463 | fContent.append("/X"); |
| 464 | fContent.appendS32(fXObjectResources.count() - 1); |
| 465 | fContent.append(" Do\n"); |
vandebo@chromium.org | 1aef2ed | 2011-02-03 21:46:10 +0000 | [diff] [blame] | 466 | setTransform(curTransform); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 467 | } |
| 468 | |
| 469 | const SkRefPtr<SkPDFDict>& SkPDFDevice::getResourceDict() { |
| 470 | if (fResourceDict.get() == NULL) { |
| 471 | fResourceDict = new SkPDFDict; |
| 472 | fResourceDict->unref(); // SkRefPtr and new both took a reference. |
| 473 | |
| 474 | if (fGraphicStateResources.count()) { |
| 475 | SkRefPtr<SkPDFDict> extGState = new SkPDFDict(); |
| 476 | extGState->unref(); // SkRefPtr and new both took a reference. |
| 477 | for (int i = 0; i < fGraphicStateResources.count(); i++) { |
| 478 | SkString nameString("G"); |
| 479 | nameString.appendS32(i); |
vandebo@chromium.org | f7c1576 | 2011-02-01 22:19:44 +0000 | [diff] [blame] | 480 | extGState->insert( |
| 481 | nameString.c_str(), |
| 482 | new SkPDFObjRef(fGraphicStateResources[i]))->unref(); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 483 | } |
| 484 | fResourceDict->insert("ExtGState", extGState.get()); |
| 485 | } |
| 486 | |
| 487 | if (fXObjectResources.count()) { |
| 488 | SkRefPtr<SkPDFDict> xObjects = new SkPDFDict(); |
| 489 | xObjects->unref(); // SkRefPtr and new both took a reference. |
| 490 | for (int i = 0; i < fXObjectResources.count(); i++) { |
| 491 | SkString nameString("X"); |
| 492 | nameString.appendS32(i); |
vandebo@chromium.org | f7c1576 | 2011-02-01 22:19:44 +0000 | [diff] [blame] | 493 | xObjects->insert( |
| 494 | nameString.c_str(), |
| 495 | new SkPDFObjRef(fXObjectResources[i]))->unref(); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 496 | } |
| 497 | fResourceDict->insert("XObject", xObjects.get()); |
| 498 | } |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 499 | |
| 500 | if (fFontResources.count()) { |
| 501 | SkRefPtr<SkPDFDict> fonts = new SkPDFDict(); |
| 502 | fonts->unref(); // SkRefPtr and new both took a reference. |
| 503 | for (int i = 0; i < fFontResources.count(); i++) { |
| 504 | SkString nameString("F"); |
| 505 | nameString.appendS32(i); |
vandebo@chromium.org | f7c1576 | 2011-02-01 22:19:44 +0000 | [diff] [blame] | 506 | fonts->insert(nameString.c_str(), |
| 507 | new SkPDFObjRef(fFontResources[i]))->unref(); |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 508 | } |
| 509 | fResourceDict->insert("Font", fonts.get()); |
| 510 | } |
| 511 | |
| 512 | // For compatibility, add all proc sets (only used for output to PS |
| 513 | // devices). |
| 514 | const char procs[][7] = {"PDF", "Text", "ImageB", "ImageC", "ImageI"}; |
| 515 | SkRefPtr<SkPDFArray> procSets = new SkPDFArray(); |
| 516 | procSets->unref(); // SkRefPtr and new both took a reference. |
| 517 | procSets->reserve(SK_ARRAY_COUNT(procs)); |
vandebo@chromium.org | f7c1576 | 2011-02-01 22:19:44 +0000 | [diff] [blame] | 518 | for (size_t i = 0; i < SK_ARRAY_COUNT(procs); i++) |
| 519 | procSets->append(new SkPDFName(procs[i]))->unref(); |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 520 | fResourceDict->insert("ProcSet", procSets.get()); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 521 | } |
| 522 | return fResourceDict; |
| 523 | } |
| 524 | |
vandebo@chromium.org | a518086 | 2010-10-26 19:48:49 +0000 | [diff] [blame] | 525 | void SkPDFDevice::getResources(SkTDArray<SkPDFObject*>* resourceList) const { |
| 526 | resourceList->setReserve(resourceList->count() + |
| 527 | fGraphicStateResources.count() + |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 528 | fXObjectResources.count() + |
| 529 | fFontResources.count()); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 530 | for (int i = 0; i < fGraphicStateResources.count(); i++) { |
vandebo@chromium.org | a518086 | 2010-10-26 19:48:49 +0000 | [diff] [blame] | 531 | resourceList->push(fGraphicStateResources[i]); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 532 | fGraphicStateResources[i]->ref(); |
vandebo@chromium.org | a518086 | 2010-10-26 19:48:49 +0000 | [diff] [blame] | 533 | fGraphicStateResources[i]->getResources(resourceList); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 534 | } |
| 535 | for (int i = 0; i < fXObjectResources.count(); i++) { |
vandebo@chromium.org | a518086 | 2010-10-26 19:48:49 +0000 | [diff] [blame] | 536 | resourceList->push(fXObjectResources[i]); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 537 | fXObjectResources[i]->ref(); |
vandebo@chromium.org | a518086 | 2010-10-26 19:48:49 +0000 | [diff] [blame] | 538 | fXObjectResources[i]->getResources(resourceList); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 539 | } |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 540 | for (int i = 0; i < fFontResources.count(); i++) { |
| 541 | resourceList->push(fFontResources[i]); |
| 542 | fFontResources[i]->ref(); |
| 543 | fFontResources[i]->getResources(resourceList); |
| 544 | } |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 545 | } |
| 546 | |
vandebo@chromium.org | a518086 | 2010-10-26 19:48:49 +0000 | [diff] [blame] | 547 | SkRefPtr<SkPDFArray> SkPDFDevice::getMediaBox() const { |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 548 | SkRefPtr<SkPDFInt> zero = new SkPDFInt(0); |
| 549 | zero->unref(); // SkRefPtr and new both took a reference. |
vandebo@chromium.org | f7c1576 | 2011-02-01 22:19:44 +0000 | [diff] [blame] | 550 | |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 551 | SkRefPtr<SkPDFArray> mediaBox = new SkPDFArray(); |
| 552 | mediaBox->unref(); // SkRefPtr and new both took a reference. |
| 553 | mediaBox->reserve(4); |
| 554 | mediaBox->append(zero.get()); |
| 555 | mediaBox->append(zero.get()); |
vandebo@chromium.org | f7c1576 | 2011-02-01 22:19:44 +0000 | [diff] [blame] | 556 | mediaBox->append(new SkPDFInt(fWidth))->unref(); |
| 557 | mediaBox->append(new SkPDFInt(fHeight))->unref(); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 558 | return mediaBox; |
| 559 | } |
| 560 | |
vandebo@chromium.org | c2a9b7f | 2011-02-24 23:22:30 +0000 | [diff] [blame^] | 561 | SkStream* SkPDFDevice::content() const { |
| 562 | size_t offset = fContent.size(); |
| 563 | char* data = (char*)sk_malloc_throw(offset + fGraphicStackIndex * 2); |
| 564 | memcpy(data, fContent.c_str(), offset); |
| 565 | for (int i = 0; i < fGraphicStackIndex; i++) { |
| 566 | data[offset++] = 'Q'; |
| 567 | data[offset++] = '\n'; |
| 568 | } |
| 569 | SkMemoryStream* result = new SkMemoryStream; |
| 570 | result->setMemoryOwned(data, offset); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 571 | return result; |
| 572 | } |
| 573 | |
| 574 | // Private |
| 575 | |
| 576 | // TODO(vandebo) handle these cases. |
vandebo@chromium.org | a518086 | 2010-10-26 19:48:49 +0000 | [diff] [blame] | 577 | #define PAINTCHECK(x,y) NOT_IMPLEMENTED(newPaint.x() y, false) |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 578 | |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 579 | void SkPDFDevice::updateGSFromPaint(const SkPaint& newPaint, bool forText) { |
vandebo@chromium.org | 4854327 | 2011-02-08 19:28:07 +0000 | [diff] [blame] | 580 | SkASSERT(newPaint.getPathEffect() == NULL); |
| 581 | |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 582 | PAINTCHECK(getMaskFilter, != NULL); |
| 583 | PAINTCHECK(getShader, != NULL); |
| 584 | PAINTCHECK(getColorFilter, != NULL); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 585 | |
| 586 | SkRefPtr<SkPDFGraphicState> newGraphicState = |
| 587 | SkPDFGraphicState::getGraphicStateForPaint(newPaint); |
| 588 | newGraphicState->unref(); // getGraphicState and SkRefPtr both took a ref. |
| 589 | // newGraphicState has been canonicalized so we can directly compare |
| 590 | // pointers. |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 591 | if (fGraphicStack[fGraphicStackIndex].fGraphicState != |
vandebo@chromium.org | 7e2ff7c | 2010-11-03 23:55:28 +0000 | [diff] [blame] | 592 | newGraphicState.get()) { |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 593 | int resourceIndex = fGraphicStateResources.find(newGraphicState.get()); |
| 594 | if (resourceIndex < 0) { |
| 595 | resourceIndex = fGraphicStateResources.count(); |
| 596 | fGraphicStateResources.push(newGraphicState.get()); |
| 597 | newGraphicState->ref(); |
| 598 | } |
| 599 | fContent.append("/G"); |
| 600 | fContent.appendS32(resourceIndex); |
| 601 | fContent.append(" gs\n"); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 602 | fGraphicStack[fGraphicStackIndex].fGraphicState = newGraphicState.get(); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 603 | } |
| 604 | |
| 605 | SkColor newColor = newPaint.getColor(); |
| 606 | newColor = SkColorSetA(newColor, 0xFF); |
vandebo@chromium.org | 7e2ff7c | 2010-11-03 23:55:28 +0000 | [diff] [blame] | 607 | if (fGraphicStack[fGraphicStackIndex].fColor != newColor) { |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 608 | SkString colorString = toPDFColor(newColor); |
| 609 | fContent.append(colorString); |
| 610 | fContent.append("RG "); |
| 611 | fContent.append(colorString); |
| 612 | fContent.append("rg\n"); |
vandebo@chromium.org | 7e2ff7c | 2010-11-03 23:55:28 +0000 | [diff] [blame] | 613 | fGraphicStack[fGraphicStackIndex].fColor = newColor; |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 614 | } |
| 615 | |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 616 | if (forText) { |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 617 | if (fGraphicStack[fGraphicStackIndex].fTextScaleX != |
| 618 | newPaint.getTextScaleX()) { |
| 619 | SkScalar scale = newPaint.getTextScaleX(); |
| 620 | SkScalar pdfScale = SkScalarMul(scale, SkIntToScalar(100)); |
| 621 | fContent.appendScalar(pdfScale); |
| 622 | fContent.append(" Tz\n"); |
| 623 | fGraphicStack[fGraphicStackIndex].fTextScaleX = scale; |
| 624 | } |
| 625 | |
| 626 | if (fGraphicStack[fGraphicStackIndex].fTextFill != |
| 627 | newPaint.getStyle()) { |
| 628 | SK_COMPILE_ASSERT(SkPaint::kFill_Style == 0, enum_must_match_value); |
| 629 | SK_COMPILE_ASSERT(SkPaint::kStroke_Style == 1, |
| 630 | enum_must_match_value); |
| 631 | SK_COMPILE_ASSERT(SkPaint::kStrokeAndFill_Style == 2, |
| 632 | enum_must_match_value); |
| 633 | fContent.appendS32(newPaint.getStyle()); |
| 634 | fContent.append(" Tr\n"); |
| 635 | fGraphicStack[fGraphicStackIndex].fTextFill = newPaint.getStyle(); |
| 636 | } |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 637 | } |
| 638 | } |
| 639 | |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 640 | void SkPDFDevice::updateFont(const SkPaint& paint, uint16_t glyphID) { |
| 641 | uint32_t fontID = SkTypeface::UniqueID(paint.getTypeface()); |
| 642 | if (fGraphicStack[fGraphicStackIndex].fTextSize != paint.getTextSize() || |
| 643 | fGraphicStack[fGraphicStackIndex].fFont == NULL || |
| 644 | fGraphicStack[fGraphicStackIndex].fFont->fontID() != fontID || |
| 645 | !fGraphicStack[fGraphicStackIndex].fFont->hasGlyph(glyphID)) { |
| 646 | int fontIndex = getFontResourceIndex(fontID, glyphID); |
| 647 | fContent.append("/F"); |
| 648 | fContent.appendS32(fontIndex); |
| 649 | fContent.append(" "); |
| 650 | fContent.appendScalar(paint.getTextSize()); |
| 651 | fContent.append(" Tf\n"); |
| 652 | fGraphicStack[fGraphicStackIndex].fTextSize = paint.getTextSize(); |
| 653 | fGraphicStack[fGraphicStackIndex].fFont = fFontResources[fontIndex]; |
| 654 | } |
| 655 | } |
| 656 | |
| 657 | |
| 658 | int SkPDFDevice::getFontResourceIndex(uint32_t fontID, uint16_t glyphID) { |
| 659 | SkRefPtr<SkPDFFont> newFont = SkPDFFont::getFontResource(fontID, glyphID); |
| 660 | newFont->unref(); // getFontResource and SkRefPtr both took a ref. |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 661 | int resourceIndex = fFontResources.find(newFont.get()); |
| 662 | if (resourceIndex < 0) { |
| 663 | resourceIndex = fFontResources.count(); |
| 664 | fFontResources.push(newFont.get()); |
| 665 | newFont->ref(); |
| 666 | } |
| 667 | return resourceIndex; |
| 668 | } |
| 669 | |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 670 | void SkPDFDevice::moveTo(SkScalar x, SkScalar y) { |
| 671 | fContent.appendScalar(x); |
| 672 | fContent.append(" "); |
| 673 | fContent.appendScalar(y); |
| 674 | fContent.append(" m\n"); |
| 675 | } |
| 676 | |
| 677 | void SkPDFDevice::appendLine(SkScalar x, SkScalar y) { |
| 678 | fContent.appendScalar(x); |
| 679 | fContent.append(" "); |
| 680 | fContent.appendScalar(y); |
| 681 | fContent.append(" l\n"); |
| 682 | } |
| 683 | |
| 684 | void SkPDFDevice::appendCubic(SkScalar ctl1X, SkScalar ctl1Y, |
| 685 | SkScalar ctl2X, SkScalar ctl2Y, |
| 686 | SkScalar dstX, SkScalar dstY) { |
| 687 | SkString cmd("y\n"); |
| 688 | fContent.appendScalar(ctl1X); |
| 689 | fContent.append(" "); |
| 690 | fContent.appendScalar(ctl1Y); |
| 691 | fContent.append(" "); |
| 692 | if (ctl2X != dstX || ctl2Y != dstY) { |
| 693 | cmd.set("c\n"); |
| 694 | fContent.appendScalar(ctl2X); |
| 695 | fContent.append(" "); |
| 696 | fContent.appendScalar(ctl2Y); |
| 697 | fContent.append(" "); |
| 698 | } |
| 699 | fContent.appendScalar(dstX); |
| 700 | fContent.append(" "); |
| 701 | fContent.appendScalar(dstY); |
vandebo@chromium.org | 1cfa2c4 | 2011-01-31 19:35:43 +0000 | [diff] [blame] | 702 | fContent.append(" "); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 703 | fContent.append(cmd); |
| 704 | } |
| 705 | |
| 706 | void SkPDFDevice::appendRectangle(SkScalar x, SkScalar y, |
| 707 | SkScalar w, SkScalar h) { |
| 708 | fContent.appendScalar(x); |
| 709 | fContent.append(" "); |
| 710 | fContent.appendScalar(y); |
| 711 | fContent.append(" "); |
| 712 | fContent.appendScalar(w); |
| 713 | fContent.append(" "); |
| 714 | fContent.appendScalar(h); |
| 715 | fContent.append(" re\n"); |
| 716 | } |
| 717 | |
vandebo@chromium.org | 7e2ff7c | 2010-11-03 23:55:28 +0000 | [diff] [blame] | 718 | void SkPDFDevice::emitPath(const SkPath& path) { |
| 719 | SkPoint args[4]; |
| 720 | SkPath::Iter iter(path, false); |
| 721 | for (SkPath::Verb verb = iter.next(args); |
| 722 | verb != SkPath::kDone_Verb; |
| 723 | verb = iter.next(args)) { |
| 724 | // args gets all the points, even the implicit first point. |
| 725 | switch (verb) { |
| 726 | case SkPath::kMove_Verb: |
| 727 | moveTo(args[0].fX, args[0].fY); |
| 728 | break; |
| 729 | case SkPath::kLine_Verb: |
| 730 | appendLine(args[1].fX, args[1].fY); |
| 731 | break; |
| 732 | case SkPath::kQuad_Verb: { |
| 733 | // Convert quad to cubic (degree elevation). http://goo.gl/vS4i |
| 734 | const SkScalar three = SkIntToScalar(3); |
| 735 | args[1].scale(SkIntToScalar(2)); |
| 736 | SkScalar ctl1X = SkScalarDiv(args[0].fX + args[1].fX, three); |
| 737 | SkScalar ctl1Y = SkScalarDiv(args[0].fY + args[1].fY, three); |
| 738 | SkScalar ctl2X = SkScalarDiv(args[2].fX + args[1].fX, three); |
| 739 | SkScalar ctl2Y = SkScalarDiv(args[2].fY + args[1].fY, three); |
| 740 | appendCubic(ctl1X, ctl1Y, ctl2X, ctl2Y, args[2].fX, args[2].fY); |
| 741 | break; |
| 742 | } |
| 743 | case SkPath::kCubic_Verb: |
| 744 | appendCubic(args[1].fX, args[1].fY, args[2].fX, args[2].fY, |
| 745 | args[3].fX, args[3].fY); |
| 746 | break; |
| 747 | case SkPath::kClose_Verb: |
| 748 | closePath(); |
| 749 | break; |
| 750 | case SkPath::kDone_Verb: |
| 751 | break; |
| 752 | default: |
| 753 | SkASSERT(false); |
| 754 | break; |
| 755 | } |
| 756 | } |
| 757 | } |
| 758 | |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 759 | void SkPDFDevice::closePath() { |
| 760 | fContent.append("h\n"); |
| 761 | } |
| 762 | |
vandebo@chromium.org | a518086 | 2010-10-26 19:48:49 +0000 | [diff] [blame] | 763 | void SkPDFDevice::paintPath(SkPaint::Style style, SkPath::FillType fill) { |
| 764 | if (style == SkPaint::kFill_Style) |
| 765 | fContent.append("f"); |
| 766 | else if (style == SkPaint::kStrokeAndFill_Style) |
| 767 | fContent.append("B"); |
| 768 | else if (style == SkPaint::kStroke_Style) |
| 769 | fContent.append("S"); |
| 770 | |
| 771 | if (style != SkPaint::kStroke_Style) { |
| 772 | // Not supported yet. |
| 773 | NOT_IMPLEMENTED(fill == SkPath::kInverseEvenOdd_FillType, false); |
| 774 | NOT_IMPLEMENTED(fill == SkPath::kInverseWinding_FillType, false); |
| 775 | if (fill == SkPath::kEvenOdd_FillType) |
| 776 | fContent.append("*"); |
| 777 | } |
| 778 | fContent.append("\n"); |
| 779 | } |
| 780 | |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 781 | void SkPDFDevice::strokePath() { |
vandebo@chromium.org | a518086 | 2010-10-26 19:48:49 +0000 | [diff] [blame] | 782 | paintPath(SkPaint::kStroke_Style, SkPath::kWinding_FillType); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 783 | } |
| 784 | |
vandebo@chromium.org | 7e2ff7c | 2010-11-03 23:55:28 +0000 | [diff] [blame] | 785 | void SkPDFDevice::pushGS() { |
| 786 | SkASSERT(fGraphicStackIndex < 2); |
| 787 | fContent.append("q\n"); |
| 788 | fGraphicStackIndex++; |
| 789 | fGraphicStack[fGraphicStackIndex] = fGraphicStack[fGraphicStackIndex - 1]; |
| 790 | } |
| 791 | |
| 792 | void SkPDFDevice::popGS() { |
| 793 | SkASSERT(fGraphicStackIndex > 0); |
| 794 | fContent.append("Q\n"); |
| 795 | fGraphicStackIndex--; |
| 796 | } |
| 797 | |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 798 | void SkPDFDevice::setTextTransform(SkScalar x, SkScalar y, SkScalar textSkewX) { |
| 799 | // Flip the text about the x-axis to account for origin swap and include |
| 800 | // the passed parameters. |
| 801 | fContent.append("1 0 "); |
| 802 | fContent.appendScalar(0 - textSkewX); |
| 803 | fContent.append(" -1 "); |
| 804 | fContent.appendScalar(x); |
| 805 | fContent.append(" "); |
| 806 | fContent.appendScalar(y); |
| 807 | fContent.append(" Tm\n"); |
| 808 | } |
| 809 | |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 810 | void SkPDFDevice::internalDrawBitmap(const SkMatrix& matrix, |
| 811 | const SkBitmap& bitmap, |
vandebo@chromium.org | befebb8 | 2011-01-29 01:38:50 +0000 | [diff] [blame] | 812 | const SkIRect* srcRect, |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 813 | const SkPaint& paint) { |
vandebo@chromium.org | befebb8 | 2011-01-29 01:38:50 +0000 | [diff] [blame] | 814 | SkIRect subset = SkIRect::MakeWH(bitmap.width(), bitmap.height()); |
| 815 | if (srcRect && !subset.intersect(*srcRect)) |
| 816 | return; |
| 817 | |
vandebo@chromium.org | 1cfa2c4 | 2011-01-31 19:35:43 +0000 | [diff] [blame] | 818 | SkPDFImage* image = SkPDFImage::CreateImage(bitmap, subset, paint); |
| 819 | if (!image) |
| 820 | return; |
| 821 | |
vandebo@chromium.org | 7e2ff7c | 2010-11-03 23:55:28 +0000 | [diff] [blame] | 822 | SkMatrix scaled; |
| 823 | // Adjust for origin flip. |
| 824 | scaled.setScale(1, -1); |
| 825 | scaled.postTranslate(0, 1); |
| 826 | // Scale the image up from 1x1 to WxH. |
vandebo@chromium.org | befebb8 | 2011-01-29 01:38:50 +0000 | [diff] [blame] | 827 | scaled.postScale(subset.width(), subset.height()); |
vandebo@chromium.org | 7e2ff7c | 2010-11-03 23:55:28 +0000 | [diff] [blame] | 828 | scaled.postConcat(matrix); |
| 829 | SkMatrix curTransform = setTransform(scaled); |
vandebo@chromium.org | 4854327 | 2011-02-08 19:28:07 +0000 | [diff] [blame] | 830 | updateGSFromPaint(paint, false); |
vandebo@chromium.org | 7e2ff7c | 2010-11-03 23:55:28 +0000 | [diff] [blame] | 831 | |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 832 | fXObjectResources.push(image); // Transfer reference. |
| 833 | fContent.append("/X"); |
| 834 | fContent.appendS32(fXObjectResources.count() - 1); |
| 835 | fContent.append(" Do\n"); |
vandebo@chromium.org | 7e2ff7c | 2010-11-03 23:55:28 +0000 | [diff] [blame] | 836 | setTransform(curTransform); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 837 | } |
| 838 | |
vandebo@chromium.org | 7e2ff7c | 2010-11-03 23:55:28 +0000 | [diff] [blame] | 839 | SkMatrix SkPDFDevice::setTransform(const SkMatrix& m) { |
| 840 | SkMatrix old = fGraphicStack[fGraphicStackIndex].fTransform; |
| 841 | if (old == m) |
| 842 | return old; |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 843 | |
vandebo@chromium.org | 7e2ff7c | 2010-11-03 23:55:28 +0000 | [diff] [blame] | 844 | if (old.getType() != SkMatrix::kIdentity_Mask) { |
| 845 | SkASSERT(fGraphicStackIndex > 0); |
| 846 | SkASSERT(fGraphicStack[fGraphicStackIndex - 1].fTransform.getType() == |
| 847 | SkMatrix::kIdentity_Mask); |
| 848 | SkASSERT(fGraphicStack[fGraphicStackIndex].fClip == |
| 849 | fGraphicStack[fGraphicStackIndex - 1].fClip); |
| 850 | popGS(); |
| 851 | } |
| 852 | if (m.getType() == SkMatrix::kIdentity_Mask) |
| 853 | return old; |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 854 | |
vandebo@chromium.org | 7e2ff7c | 2010-11-03 23:55:28 +0000 | [diff] [blame] | 855 | if (fGraphicStackIndex == 0 || fGraphicStack[fGraphicStackIndex].fClip != |
| 856 | fGraphicStack[fGraphicStackIndex - 1].fClip) |
| 857 | pushGS(); |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 858 | |
vandebo@chromium.org | ddbbd80 | 2010-10-26 19:45:06 +0000 | [diff] [blame] | 859 | SkScalar transform[6]; |
| 860 | SkAssertResult(m.pdfTransform(transform)); |
| 861 | for (size_t i = 0; i < SK_ARRAY_COUNT(transform); i++) { |
| 862 | fContent.appendScalar(transform[i]); |
| 863 | fContent.append(" "); |
| 864 | } |
| 865 | fContent.append("cm\n"); |
vandebo@chromium.org | 7e2ff7c | 2010-11-03 23:55:28 +0000 | [diff] [blame] | 866 | fGraphicStack[fGraphicStackIndex].fTransform = m; |
| 867 | |
| 868 | return old; |
vandebo@chromium.org | 9b49dc0 | 2010-10-20 22:23:29 +0000 | [diff] [blame] | 869 | } |