1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
2 * This Source Code Form is subject to the terms of the Mozilla Public
3 * License, v. 2.0. If a copy of the MPL was not distributed with this
4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
5
6 #ifndef MOZILLA_GFX_HELPERSD2D_H_
7 #define MOZILLA_GFX_HELPERSD2D_H_
8
9 #include <d2d1_1.h>
10
11 #include <vector>
12
13 #include <dwrite.h>
14 #include <versionhelpers.h>
15 #include "2D.h"
16 #include "Logging.h"
17 #include "Tools.h"
18 #include "ImageScaling.h"
19
20 #include "ScaledFontDWrite.h"
21
22 #undef min
23 #undef max
24
25 namespace mozilla {
26 namespace gfx {
27
28 ID2D1Factory1* D2DFactory1();
D2DFactory()29 static ID2D1Factory* D2DFactory() { return D2DFactory1(); }
30
D2DPoint(const Point & aPoint)31 static inline D2D1_POINT_2F D2DPoint(const Point &aPoint)
32 {
33 return D2D1::Point2F(aPoint.x, aPoint.y);
34 }
35
D2DIntSize(const IntSize & aSize)36 static inline D2D1_SIZE_U D2DIntSize(const IntSize &aSize)
37 {
38 return D2D1::SizeU(aSize.width, aSize.height);
39 }
40
41 template <typename T>
D2DRect(const T & aRect)42 static inline D2D1_RECT_F D2DRect(const T &aRect)
43 {
44 return D2D1::RectF(aRect.x, aRect.y, aRect.XMost(), aRect.YMost());
45 }
46
D2DExtend(ExtendMode aExtendMode,Axis aAxis)47 static inline D2D1_EXTEND_MODE D2DExtend(ExtendMode aExtendMode, Axis aAxis)
48 {
49 D2D1_EXTEND_MODE extend;
50 switch (aExtendMode) {
51 case ExtendMode::REPEAT:
52 extend = D2D1_EXTEND_MODE_WRAP;
53 break;
54 case ExtendMode::REPEAT_X:
55 {
56 extend = aAxis == Axis::X_AXIS
57 ? D2D1_EXTEND_MODE_WRAP
58 : D2D1_EXTEND_MODE_CLAMP;
59 break;
60 }
61 case ExtendMode::REPEAT_Y:
62 {
63 extend = aAxis == Axis::Y_AXIS
64 ? D2D1_EXTEND_MODE_WRAP
65 : D2D1_EXTEND_MODE_CLAMP;
66 break;
67 }
68 case ExtendMode::REFLECT:
69 extend = D2D1_EXTEND_MODE_MIRROR;
70 break;
71 default:
72 extend = D2D1_EXTEND_MODE_CLAMP;
73 }
74
75 return extend;
76 }
77
D2DFilter(const SamplingFilter aSamplingFilter)78 static inline D2D1_BITMAP_INTERPOLATION_MODE D2DFilter(const SamplingFilter aSamplingFilter)
79 {
80 switch (aSamplingFilter) {
81 case SamplingFilter::POINT:
82 return D2D1_BITMAP_INTERPOLATION_MODE_NEAREST_NEIGHBOR;
83 default:
84 return D2D1_BITMAP_INTERPOLATION_MODE_LINEAR;
85 }
86 }
87
D2DInterpolationMode(const SamplingFilter aSamplingFilter)88 static inline D2D1_INTERPOLATION_MODE D2DInterpolationMode(const SamplingFilter aSamplingFilter)
89 {
90 switch (aSamplingFilter) {
91 case SamplingFilter::POINT:
92 return D2D1_INTERPOLATION_MODE_NEAREST_NEIGHBOR;
93 default:
94 return D2D1_INTERPOLATION_MODE_LINEAR;
95 }
96 }
97
D2DMatrix5x4(const Matrix5x4 & aMatrix)98 static inline D2D1_MATRIX_5X4_F D2DMatrix5x4(const Matrix5x4 &aMatrix)
99 {
100 return D2D1::Matrix5x4F(aMatrix._11, aMatrix._12, aMatrix._13, aMatrix._14,
101 aMatrix._21, aMatrix._22, aMatrix._23, aMatrix._24,
102 aMatrix._31, aMatrix._32, aMatrix._33, aMatrix._34,
103 aMatrix._41, aMatrix._42, aMatrix._43, aMatrix._44,
104 aMatrix._51, aMatrix._52, aMatrix._53, aMatrix._54);
105 }
106
D2DVector3D(const Point3D & aPoint)107 static inline D2D1_VECTOR_3F D2DVector3D(const Point3D &aPoint)
108 {
109 return D2D1::Vector3F(aPoint.x, aPoint.y, aPoint.z);
110 }
111
D2DAAMode(AntialiasMode aMode)112 static inline D2D1_ANTIALIAS_MODE D2DAAMode(AntialiasMode aMode)
113 {
114 switch (aMode) {
115 case AntialiasMode::NONE:
116 return D2D1_ANTIALIAS_MODE_ALIASED;
117 default:
118 return D2D1_ANTIALIAS_MODE_PER_PRIMITIVE;
119 }
120 }
121
D2DMatrix(const Matrix & aTransform)122 static inline D2D1_MATRIX_3X2_F D2DMatrix(const Matrix &aTransform)
123 {
124 return D2D1::Matrix3x2F(aTransform._11, aTransform._12,
125 aTransform._21, aTransform._22,
126 aTransform._31, aTransform._32);
127 }
128
D2DColor(const Color & aColor)129 static inline D2D1_COLOR_F D2DColor(const Color &aColor)
130 {
131 return D2D1::ColorF(aColor.r, aColor.g, aColor.b, aColor.a);
132 }
133
ToIntSize(const D2D1_SIZE_U & aSize)134 static inline IntSize ToIntSize(const D2D1_SIZE_U &aSize)
135 {
136 return IntSize(aSize.width, aSize.height);
137 }
138
ToPixelFormat(const D2D1_PIXEL_FORMAT & aFormat)139 static inline SurfaceFormat ToPixelFormat(const D2D1_PIXEL_FORMAT &aFormat)
140 {
141 switch(aFormat.format) {
142 case DXGI_FORMAT_A8_UNORM:
143 case DXGI_FORMAT_R8_UNORM:
144 return SurfaceFormat::A8;
145 case DXGI_FORMAT_B8G8R8A8_UNORM:
146 if (aFormat.alphaMode == D2D1_ALPHA_MODE_IGNORE) {
147 return SurfaceFormat::B8G8R8X8;
148 } else {
149 return SurfaceFormat::B8G8R8A8;
150 }
151 default:
152 return SurfaceFormat::B8G8R8A8;
153 }
154 }
155
ToRect(const D2D1_RECT_F & aRect)156 static inline Rect ToRect(const D2D1_RECT_F &aRect)
157 {
158 return Rect(aRect.left, aRect.top, aRect.right - aRect.left, aRect.bottom - aRect.top);
159 }
160
ToMatrix(const D2D1_MATRIX_3X2_F & aTransform)161 static inline Matrix ToMatrix(const D2D1_MATRIX_3X2_F &aTransform)
162 {
163 return Matrix(aTransform._11, aTransform._12,
164 aTransform._21, aTransform._22,
165 aTransform._31, aTransform._32);
166 }
167
ToPoint(const D2D1_POINT_2F & aPoint)168 static inline Point ToPoint(const D2D1_POINT_2F &aPoint)
169 {
170 return Point(aPoint.x, aPoint.y);
171 }
172
DXGIFormat(SurfaceFormat aFormat)173 static inline DXGI_FORMAT DXGIFormat(SurfaceFormat aFormat)
174 {
175 switch (aFormat) {
176 case SurfaceFormat::B8G8R8A8:
177 return DXGI_FORMAT_B8G8R8A8_UNORM;
178 case SurfaceFormat::B8G8R8X8:
179 return DXGI_FORMAT_B8G8R8A8_UNORM;
180 case SurfaceFormat::A8:
181 return DXGI_FORMAT_A8_UNORM;
182 default:
183 return DXGI_FORMAT_UNKNOWN;
184 }
185 }
186
D2DAlphaModeForFormat(SurfaceFormat aFormat)187 static inline D2D1_ALPHA_MODE D2DAlphaModeForFormat(SurfaceFormat aFormat)
188 {
189 switch (aFormat) {
190 case SurfaceFormat::B8G8R8X8:
191 return D2D1_ALPHA_MODE_IGNORE;
192 default:
193 return D2D1_ALPHA_MODE_PREMULTIPLIED;
194 }
195 }
196
D2DPixelFormat(SurfaceFormat aFormat)197 static inline D2D1_PIXEL_FORMAT D2DPixelFormat(SurfaceFormat aFormat)
198 {
199 return D2D1::PixelFormat(DXGIFormat(aFormat), D2DAlphaModeForFormat(aFormat));
200 }
201
D2DSupportsCompositeMode(CompositionOp aOp)202 static inline bool D2DSupportsCompositeMode(CompositionOp aOp)
203 {
204 switch(aOp) {
205 case CompositionOp::OP_OVER:
206 case CompositionOp::OP_ADD:
207 case CompositionOp::OP_ATOP:
208 case CompositionOp::OP_OUT:
209 case CompositionOp::OP_IN:
210 case CompositionOp::OP_SOURCE:
211 case CompositionOp::OP_DEST_IN:
212 case CompositionOp::OP_DEST_OUT:
213 case CompositionOp::OP_DEST_OVER:
214 case CompositionOp::OP_DEST_ATOP:
215 case CompositionOp::OP_XOR:
216 return true;
217 default:
218 return false;
219 }
220 }
221
D2DCompositionMode(CompositionOp aOp)222 static inline D2D1_COMPOSITE_MODE D2DCompositionMode(CompositionOp aOp)
223 {
224 switch(aOp) {
225 case CompositionOp::OP_OVER:
226 return D2D1_COMPOSITE_MODE_SOURCE_OVER;
227 case CompositionOp::OP_ADD:
228 return D2D1_COMPOSITE_MODE_PLUS;
229 case CompositionOp::OP_ATOP:
230 return D2D1_COMPOSITE_MODE_SOURCE_ATOP;
231 case CompositionOp::OP_OUT:
232 return D2D1_COMPOSITE_MODE_SOURCE_OUT;
233 case CompositionOp::OP_IN:
234 return D2D1_COMPOSITE_MODE_SOURCE_IN;
235 case CompositionOp::OP_SOURCE:
236 return D2D1_COMPOSITE_MODE_SOURCE_COPY;
237 case CompositionOp::OP_DEST_IN:
238 return D2D1_COMPOSITE_MODE_DESTINATION_IN;
239 case CompositionOp::OP_DEST_OUT:
240 return D2D1_COMPOSITE_MODE_DESTINATION_OUT;
241 case CompositionOp::OP_DEST_OVER:
242 return D2D1_COMPOSITE_MODE_DESTINATION_OVER;
243 case CompositionOp::OP_DEST_ATOP:
244 return D2D1_COMPOSITE_MODE_DESTINATION_ATOP;
245 case CompositionOp::OP_XOR:
246 return D2D1_COMPOSITE_MODE_XOR;
247 default:
248 return D2D1_COMPOSITE_MODE_SOURCE_OVER;
249 }
250 }
251
D2DBlendMode(CompositionOp aOp)252 static inline D2D1_BLEND_MODE D2DBlendMode(CompositionOp aOp)
253 {
254 switch (aOp) {
255 case CompositionOp::OP_MULTIPLY:
256 return D2D1_BLEND_MODE_MULTIPLY;
257 case CompositionOp::OP_SCREEN:
258 return D2D1_BLEND_MODE_SCREEN;
259 case CompositionOp::OP_OVERLAY:
260 return D2D1_BLEND_MODE_OVERLAY;
261 case CompositionOp::OP_DARKEN:
262 return D2D1_BLEND_MODE_DARKEN;
263 case CompositionOp::OP_LIGHTEN:
264 return D2D1_BLEND_MODE_LIGHTEN;
265 case CompositionOp::OP_COLOR_DODGE:
266 return D2D1_BLEND_MODE_COLOR_DODGE;
267 case CompositionOp::OP_COLOR_BURN:
268 return D2D1_BLEND_MODE_COLOR_BURN;
269 case CompositionOp::OP_HARD_LIGHT:
270 return D2D1_BLEND_MODE_HARD_LIGHT;
271 case CompositionOp::OP_SOFT_LIGHT:
272 return D2D1_BLEND_MODE_SOFT_LIGHT;
273 case CompositionOp::OP_DIFFERENCE:
274 return D2D1_BLEND_MODE_DIFFERENCE;
275 case CompositionOp::OP_EXCLUSION:
276 return D2D1_BLEND_MODE_EXCLUSION;
277 case CompositionOp::OP_HUE:
278 return D2D1_BLEND_MODE_HUE;
279 case CompositionOp::OP_SATURATION:
280 return D2D1_BLEND_MODE_SATURATION;
281 case CompositionOp::OP_COLOR:
282 return D2D1_BLEND_MODE_COLOR;
283 case CompositionOp::OP_LUMINOSITY:
284 return D2D1_BLEND_MODE_LUMINOSITY;
285 default:
286 return D2D1_BLEND_MODE_MULTIPLY;
287 }
288 }
289
D2DSupportsPrimitiveBlendMode(CompositionOp aOp)290 static inline bool D2DSupportsPrimitiveBlendMode(CompositionOp aOp)
291 {
292 switch (aOp) {
293 case CompositionOp::OP_OVER:
294 // case CompositionOp::OP_SOURCE:
295 return true;
296 // case CompositionOp::OP_DARKEN:
297 case CompositionOp::OP_ADD:
298 return IsWindows8Point1OrGreater();
299 default:
300 return false;
301 }
302 }
303
D2DPrimitiveBlendMode(CompositionOp aOp)304 static inline D2D1_PRIMITIVE_BLEND D2DPrimitiveBlendMode(CompositionOp aOp)
305 {
306 switch (aOp) {
307 case CompositionOp::OP_OVER:
308 return D2D1_PRIMITIVE_BLEND_SOURCE_OVER;
309 // D2D1_PRIMITIVE_BLEND_COPY should leave pixels out of the source's
310 // bounds unchanged, but doesn't- breaking unbounded ops.
311 // D2D1_PRIMITIVE_BLEND_MIN doesn't quite work like darken either, as it
312 // accounts for the source alpha.
313 //
314 // case CompositionOp::OP_SOURCE:
315 // return D2D1_PRIMITIVE_BLEND_COPY;
316 // case CompositionOp::OP_DARKEN:
317 // return D2D1_PRIMITIVE_BLEND_MIN;
318 case CompositionOp::OP_ADD:
319 return D2D1_PRIMITIVE_BLEND_ADD;
320 default:
321 return D2D1_PRIMITIVE_BLEND_SOURCE_OVER;
322 }
323 }
324
IsPatternSupportedByD2D(const Pattern & aPattern)325 static inline bool IsPatternSupportedByD2D(const Pattern &aPattern)
326 {
327 if (aPattern.GetType() != PatternType::RADIAL_GRADIENT) {
328 return true;
329 }
330
331 const RadialGradientPattern *pat =
332 static_cast<const RadialGradientPattern*>(&aPattern);
333
334 if (pat->mRadius1 != 0) {
335 return false;
336 }
337
338 Point diff = pat->mCenter2 - pat->mCenter1;
339
340 if (sqrt(diff.x * diff.x + diff.y * diff.y) >= pat->mRadius2) {
341 // Inner point lies outside the circle.
342 return false;
343 }
344
345 return true;
346 }
347
348 /**
349 * This structure is used to pass rectangles to our shader constant. We can use
350 * this for passing rectangular areas to SetVertexShaderConstant. In the format
351 * of a 4 component float(x,y,width,height). Our vertex shader can then use
352 * this to construct rectangular positions from the 0,0-1,1 quad that we source
353 * it with.
354 */
355 struct ShaderConstantRectD3D10
356 {
357 float mX, mY, mWidth, mHeight;
ShaderConstantRectD3D10ShaderConstantRectD3D10358 ShaderConstantRectD3D10(float aX, float aY, float aWidth, float aHeight)
359 : mX(aX), mY(aY), mWidth(aWidth), mHeight(aHeight)
360 { }
361
362 // For easy passing to SetVertexShaderConstantF.
363 operator float* () { return &mX; }
364 };
365
366 static inline DWRITE_MATRIX
DWriteMatrixFromMatrix(Matrix & aMatrix)367 DWriteMatrixFromMatrix(Matrix &aMatrix)
368 {
369 DWRITE_MATRIX mat;
370 mat.m11 = aMatrix._11;
371 mat.m12 = aMatrix._12;
372 mat.m21 = aMatrix._21;
373 mat.m22 = aMatrix._22;
374 mat.dx = aMatrix._31;
375 mat.dy = aMatrix._32;
376 return mat;
377 }
378
379 class AutoDWriteGlyphRun : public DWRITE_GLYPH_RUN
380 {
381 static const unsigned kNumAutoGlyphs = 256;
382
383 public:
AutoDWriteGlyphRun()384 AutoDWriteGlyphRun() {
385 glyphCount = 0;
386 }
387
~AutoDWriteGlyphRun()388 ~AutoDWriteGlyphRun() {
389 if (glyphCount > kNumAutoGlyphs) {
390 delete[] glyphIndices;
391 delete[] glyphAdvances;
392 delete[] glyphOffsets;
393 }
394 }
395
allocate(unsigned aNumGlyphs)396 void allocate(unsigned aNumGlyphs) {
397 glyphCount = aNumGlyphs;
398 if (aNumGlyphs <= kNumAutoGlyphs) {
399 glyphIndices = &mAutoIndices[0];
400 glyphAdvances = &mAutoAdvances[0];
401 glyphOffsets = &mAutoOffsets[0];
402 } else {
403 glyphIndices = new UINT16[aNumGlyphs];
404 glyphAdvances = new FLOAT[aNumGlyphs];
405 glyphOffsets = new DWRITE_GLYPH_OFFSET[aNumGlyphs];
406 }
407 }
408
409 private:
410 DWRITE_GLYPH_OFFSET mAutoOffsets[kNumAutoGlyphs];
411 FLOAT mAutoAdvances[kNumAutoGlyphs];
412 UINT16 mAutoIndices[kNumAutoGlyphs];
413 };
414
415 static inline void
DWriteGlyphRunFromGlyphs(const GlyphBuffer & aGlyphs,ScaledFontDWrite * aFont,AutoDWriteGlyphRun * run)416 DWriteGlyphRunFromGlyphs(const GlyphBuffer &aGlyphs, ScaledFontDWrite *aFont, AutoDWriteGlyphRun *run)
417 {
418 run->allocate(aGlyphs.mNumGlyphs);
419
420 FLOAT *advances = const_cast<FLOAT*>(run->glyphAdvances);
421 UINT16 *indices = const_cast<UINT16*>(run->glyphIndices);
422 DWRITE_GLYPH_OFFSET *offsets = const_cast<DWRITE_GLYPH_OFFSET*>(run->glyphOffsets);
423
424 memset(advances, 0, sizeof(FLOAT) * aGlyphs.mNumGlyphs);
425 for (unsigned int i = 0; i < aGlyphs.mNumGlyphs; i++) {
426 indices[i] = aGlyphs.mGlyphs[i].mIndex;
427 offsets[i].advanceOffset = aGlyphs.mGlyphs[i].mPosition.x;
428 offsets[i].ascenderOffset = -aGlyphs.mGlyphs[i].mPosition.y;
429 }
430
431 run->bidiLevel = 0;
432 run->fontFace = aFont->mFontFace;
433 run->fontEmSize = aFont->GetSize();
434 run->glyphCount = aGlyphs.mNumGlyphs;
435 run->isSideways = FALSE;
436 }
437
438 static inline already_AddRefed<ID2D1Geometry>
ConvertRectToGeometry(const D2D1_RECT_F & aRect)439 ConvertRectToGeometry(const D2D1_RECT_F& aRect)
440 {
441 RefPtr<ID2D1RectangleGeometry> rectGeom;
442 D2DFactory()->CreateRectangleGeometry(&aRect, getter_AddRefs(rectGeom));
443 return rectGeom.forget();
444 }
445
446 static inline already_AddRefed<ID2D1Geometry>
GetTransformedGeometry(ID2D1Geometry * aGeometry,const D2D1_MATRIX_3X2_F & aTransform)447 GetTransformedGeometry(ID2D1Geometry *aGeometry, const D2D1_MATRIX_3X2_F &aTransform)
448 {
449 RefPtr<ID2D1PathGeometry> tmpGeometry;
450 D2DFactory()->CreatePathGeometry(getter_AddRefs(tmpGeometry));
451 RefPtr<ID2D1GeometrySink> currentSink;
452 tmpGeometry->Open(getter_AddRefs(currentSink));
453 aGeometry->Simplify(D2D1_GEOMETRY_SIMPLIFICATION_OPTION_CUBICS_AND_LINES,
454 aTransform, currentSink);
455 currentSink->Close();
456 return tmpGeometry.forget();
457 }
458
459 static inline already_AddRefed<ID2D1Geometry>
IntersectGeometry(ID2D1Geometry * aGeometryA,ID2D1Geometry * aGeometryB)460 IntersectGeometry(ID2D1Geometry *aGeometryA, ID2D1Geometry *aGeometryB)
461 {
462 RefPtr<ID2D1PathGeometry> pathGeom;
463 D2DFactory()->CreatePathGeometry(getter_AddRefs(pathGeom));
464 RefPtr<ID2D1GeometrySink> sink;
465 pathGeom->Open(getter_AddRefs(sink));
466 aGeometryA->CombineWithGeometry(aGeometryB, D2D1_COMBINE_MODE_INTERSECT, nullptr, sink);
467 sink->Close();
468
469 return pathGeom.forget();
470 }
471
472 static inline already_AddRefed<ID2D1StrokeStyle>
CreateStrokeStyleForOptions(const StrokeOptions & aStrokeOptions)473 CreateStrokeStyleForOptions(const StrokeOptions &aStrokeOptions)
474 {
475 RefPtr<ID2D1StrokeStyle> style;
476
477 D2D1_CAP_STYLE capStyle;
478 D2D1_LINE_JOIN joinStyle;
479
480 switch (aStrokeOptions.mLineCap) {
481 case CapStyle::BUTT:
482 capStyle = D2D1_CAP_STYLE_FLAT;
483 break;
484 case CapStyle::ROUND:
485 capStyle = D2D1_CAP_STYLE_ROUND;
486 break;
487 case CapStyle::SQUARE:
488 capStyle = D2D1_CAP_STYLE_SQUARE;
489 break;
490 }
491
492 switch (aStrokeOptions.mLineJoin) {
493 case JoinStyle::MITER:
494 joinStyle = D2D1_LINE_JOIN_MITER;
495 break;
496 case JoinStyle::MITER_OR_BEVEL:
497 joinStyle = D2D1_LINE_JOIN_MITER_OR_BEVEL;
498 break;
499 case JoinStyle::ROUND:
500 joinStyle = D2D1_LINE_JOIN_ROUND;
501 break;
502 case JoinStyle::BEVEL:
503 joinStyle = D2D1_LINE_JOIN_BEVEL;
504 break;
505 }
506
507
508 HRESULT hr;
509 // We need to check mDashLength in addition to mDashPattern here since if
510 // mDashPattern is set but mDashLength is zero then the stroke will fail to
511 // paint.
512 if (aStrokeOptions.mDashLength > 0 && aStrokeOptions.mDashPattern) {
513 typedef std::vector<Float> FloatVector;
514 // D2D "helpfully" multiplies the dash pattern by the line width.
515 // That's not what cairo does, or is what <canvas>'s dash wants.
516 // So fix the multiplication in advance.
517 Float lineWidth = aStrokeOptions.mLineWidth;
518 FloatVector dash(aStrokeOptions.mDashPattern,
519 aStrokeOptions.mDashPattern + aStrokeOptions.mDashLength);
520 for (FloatVector::iterator it = dash.begin(); it != dash.end(); ++it) {
521 *it /= lineWidth;
522 }
523
524 hr = D2DFactory()->CreateStrokeStyle(
525 D2D1::StrokeStyleProperties(capStyle, capStyle,
526 capStyle, joinStyle,
527 aStrokeOptions.mMiterLimit,
528 D2D1_DASH_STYLE_CUSTOM,
529 aStrokeOptions.mDashOffset / lineWidth),
530 &dash[0], // data() is not C++98, although it's in recent gcc
531 // and VC10's STL
532 dash.size(),
533 getter_AddRefs(style));
534 } else {
535 hr = D2DFactory()->CreateStrokeStyle(
536 D2D1::StrokeStyleProperties(capStyle, capStyle,
537 capStyle, joinStyle,
538 aStrokeOptions.mMiterLimit),
539 nullptr, 0, getter_AddRefs(style));
540 }
541
542 if (FAILED(hr)) {
543 gfxWarning() << "Failed to create Direct2D stroke style.";
544 }
545
546 return style.forget();
547 }
548
549 // This creates a (partially) uploaded bitmap for a DataSourceSurface. It
550 // uploads the minimum requirement and possibly downscales. It adjusts the
551 // input Matrix to compensate.
552 static inline already_AddRefed<ID2D1Bitmap>
553 CreatePartialBitmapForSurface(DataSourceSurface *aSurface, const Matrix &aDestinationTransform,
554 const IntSize &aDestinationSize, ExtendMode aExtendMode,
555 Matrix &aSourceTransform, ID2D1RenderTarget *aRT,
556 const IntRect* aSourceRect = nullptr)
557 {
558 RefPtr<ID2D1Bitmap> bitmap;
559
560 // This is where things get complicated. The source surface was
561 // created for a surface that was too large to fit in a texture.
562 // We'll need to figure out if we can work with a partial upload
563 // or downsample in software.
564
565 Matrix transform = aDestinationTransform;
566 Matrix invTransform = transform = aSourceTransform * transform;
567 if (!invTransform.Invert()) {
568 // Singular transform, nothing to be drawn.
569 return nullptr;
570 }
571
572 Rect rect(0, 0, Float(aDestinationSize.width), Float(aDestinationSize.height));
573
574 // Calculate the rectangle of the source mapped to our surface.
575 rect = invTransform.TransformBounds(rect);
576 rect.RoundOut();
577
578 IntSize size = aSurface->GetSize();
579
580 Rect uploadRect(0, 0, Float(size.width), Float(size.height));
581 if (aSourceRect) {
582 uploadRect = Rect(aSourceRect->x, aSourceRect->y, aSourceRect->width, aSourceRect->height);
583 }
584
585 // Limit the uploadRect as much as possible without supporting discontiguous uploads
586 //
587 // region we will paint from
588 // uploadRect
589 // .---------------. .---------------. resulting uploadRect
590 // | |rect | |
591 // | .---------. .----. .----. .---------------.
592 // | | | ----> | | | | ----> | |
593 // | '---------' '----' '----' '---------------'
594 // '---------------' '---------------'
595 //
596 //
597
598 if (uploadRect.Contains(rect)) {
599 // Extend mode is irrelevant, the displayed rect is completely contained
600 // by the source bitmap.
601 uploadRect = rect;
602 } else if (aExtendMode == ExtendMode::CLAMP && uploadRect.Intersects(rect)) {
603 // Calculate the rectangle on the source bitmap that touches our
604 // surface, and upload that, for ExtendMode::CLAMP we can actually guarantee
605 // correct behaviour in this case.
606 uploadRect = uploadRect.Intersect(rect);
607
608 // We now proceed to check if we can limit at least one dimension of the
609 // upload rect safely without looking at extend mode.
610 } else if (rect.x >= 0 && rect.XMost() < size.width) {
611 uploadRect.x = rect.x;
612 uploadRect.width = rect.width;
613 } else if (rect.y >= 0 && rect.YMost() < size.height) {
614 uploadRect.y = rect.y;
615 uploadRect.height = rect.height;
616 }
617
618 if (uploadRect.IsEmpty()) {
619 // Nothing to be drawn.
620 return nullptr;
621 }
622
623 if (uploadRect.width <= aRT->GetMaximumBitmapSize() &&
624 uploadRect.height <= aRT->GetMaximumBitmapSize()) {
625 {
626 // Scope to auto-Unmap() |mapping|.
627 DataSourceSurface::ScopedMap mapping(aSurface, DataSourceSurface::READ);
628 if (MOZ2D_WARN_IF(!mapping.IsMapped())) {
629 return nullptr;
630 }
631
632 // A partial upload will suffice.
633 aRT->CreateBitmap(D2D1::SizeU(uint32_t(uploadRect.width), uint32_t(uploadRect.height)),
634 mapping.GetData() + int(uploadRect.x) * 4 + int(uploadRect.y) * mapping.GetStride(),
635 mapping.GetStride(),
636 D2D1::BitmapProperties(D2DPixelFormat(aSurface->GetFormat())),
637 getter_AddRefs(bitmap));
638 }
639
640 aSourceTransform.PreTranslate(uploadRect.x, uploadRect.y);
641
642 return bitmap.forget();
643 } else {
644 int Bpp = BytesPerPixel(aSurface->GetFormat());
645
646 if (Bpp != 4) {
647 // This shouldn't actually happen in practice!
648 MOZ_ASSERT(false);
649 return nullptr;
650 }
651
652 {
653 // Scope to auto-Unmap() |mapping|.
654 DataSourceSurface::ScopedMap mapping(aSurface, DataSourceSurface::READ);
655 if (MOZ2D_WARN_IF(!mapping.IsMapped())) {
656 return nullptr;
657 }
658 ImageHalfScaler scaler(mapping.GetData(), mapping.GetStride(), size);
659
660 // Calculate the maximum width/height of the image post transform.
661 Point topRight = transform.TransformPoint(Point(Float(size.width), 0));
662 Point topLeft = transform.TransformPoint(Point(0, 0));
663 Point bottomRight = transform.TransformPoint(Point(Float(size.width), Float(size.height)));
664 Point bottomLeft = transform.TransformPoint(Point(0, Float(size.height)));
665
666 IntSize scaleSize;
667
668 scaleSize.width = int32_t(std::max(Distance(topRight, topLeft),
669 Distance(bottomRight, bottomLeft)));
670 scaleSize.height = int32_t(std::max(Distance(topRight, bottomRight),
671 Distance(topLeft, bottomLeft)));
672
673 if (unsigned(scaleSize.width) > aRT->GetMaximumBitmapSize()) {
674 // Ok, in this case we'd really want a downscale of a part of the bitmap,
675 // perhaps we can do this later but for simplicity let's do something
676 // different here and assume it's good enough, this should be rare!
677 scaleSize.width = 4095;
678 }
679 if (unsigned(scaleSize.height) > aRT->GetMaximumBitmapSize()) {
680 scaleSize.height = 4095;
681 }
682
683 scaler.ScaleForSize(scaleSize);
684
685 IntSize newSize = scaler.GetSize();
686
687 if (newSize.IsEmpty()) {
688 return nullptr;
689 }
690
691 aRT->CreateBitmap(D2D1::SizeU(newSize.width, newSize.height),
692 scaler.GetScaledData(), scaler.GetStride(),
693 D2D1::BitmapProperties(D2DPixelFormat(aSurface->GetFormat())),
694 getter_AddRefs(bitmap));
695
696 aSourceTransform.PreScale(Float(size.width) / newSize.width,
697 Float(size.height) / newSize.height);
698 }
699 return bitmap.forget();
700 }
701 }
702
AddRectToSink(ID2D1GeometrySink * aSink,const D2D1_RECT_F & aRect)703 static inline void AddRectToSink(ID2D1GeometrySink* aSink, const D2D1_RECT_F& aRect)
704 {
705 aSink->BeginFigure(D2D1::Point2F(aRect.left, aRect.top), D2D1_FIGURE_BEGIN_FILLED);
706 aSink->AddLine(D2D1::Point2F(aRect.right, aRect.top));
707 aSink->AddLine(D2D1::Point2F(aRect.right, aRect.bottom));
708 aSink->AddLine(D2D1::Point2F(aRect.left, aRect.bottom));
709 aSink->EndFigure(D2D1_FIGURE_END_CLOSED);
710 }
711
712 class DCCommandSink : public ID2D1CommandSink
713 {
714 public:
DCCommandSink(ID2D1DeviceContext * aCtx)715 DCCommandSink(ID2D1DeviceContext* aCtx) : mCtx(aCtx)
716 {
717 }
718
QueryInterface(const IID & aIID,void ** aPtr)719 HRESULT STDMETHODCALLTYPE QueryInterface(const IID &aIID, void **aPtr)
720 {
721 if (!aPtr) {
722 return E_POINTER;
723 }
724
725 if (aIID == IID_IUnknown) {
726 *aPtr = static_cast<IUnknown*>(this);
727 return S_OK;
728 } else if (aIID == IID_ID2D1CommandSink) {
729 *aPtr = static_cast<ID2D1CommandSink*>(this);
730 return S_OK;
731 }
732
733 return E_NOINTERFACE;
734 }
735
AddRef()736 ULONG STDMETHODCALLTYPE AddRef()
737 {
738 return 1;
739 }
740
Release()741 ULONG STDMETHODCALLTYPE Release()
742 {
743 return 1;
744 }
745
BeginDraw()746 STDMETHODIMP BeginDraw()
747 {
748 // We don't want to do anything here!
749 return S_OK;
750 }
EndDraw()751 STDMETHODIMP EndDraw()
752 {
753 // We don't want to do anything here!
754 return S_OK;
755 }
756
SetAntialiasMode(D2D1_ANTIALIAS_MODE antialiasMode)757 STDMETHODIMP SetAntialiasMode(
758 D2D1_ANTIALIAS_MODE antialiasMode
759 )
760 {
761 mCtx->SetAntialiasMode(antialiasMode);
762 return S_OK;
763 }
764
SetTags(D2D1_TAG tag1,D2D1_TAG tag2)765 STDMETHODIMP SetTags(D2D1_TAG tag1, D2D1_TAG tag2)
766 {
767 mCtx->SetTags(tag1, tag2);
768 return S_OK;
769 }
770
SetTextAntialiasMode(D2D1_TEXT_ANTIALIAS_MODE textAntialiasMode)771 STDMETHODIMP SetTextAntialiasMode(D2D1_TEXT_ANTIALIAS_MODE textAntialiasMode)
772 {
773 mCtx->SetTextAntialiasMode(textAntialiasMode);
774 return S_OK;
775 }
776
SetTextRenderingParams(_In_opt_ IDWriteRenderingParams * textRenderingParams)777 STDMETHODIMP SetTextRenderingParams(_In_opt_ IDWriteRenderingParams *textRenderingParams)
778 {
779 mCtx->SetTextRenderingParams(textRenderingParams);
780 return S_OK;
781 }
782
SetTransform(_In_ CONST D2D1_MATRIX_3X2_F * transform)783 STDMETHODIMP SetTransform(_In_ CONST D2D1_MATRIX_3X2_F *transform)
784 {
785 mCtx->SetTransform(transform);
786 return S_OK;
787 }
788
SetPrimitiveBlend(D2D1_PRIMITIVE_BLEND primitiveBlend)789 STDMETHODIMP SetPrimitiveBlend(D2D1_PRIMITIVE_BLEND primitiveBlend)
790 {
791 mCtx->SetPrimitiveBlend(primitiveBlend);
792 return S_OK;
793 }
794
SetUnitMode(D2D1_UNIT_MODE unitMode)795 STDMETHODIMP SetUnitMode(D2D1_UNIT_MODE unitMode)
796 {
797 mCtx->SetUnitMode(unitMode);
798 return S_OK;
799 }
800
Clear(_In_opt_ CONST D2D1_COLOR_F * color)801 STDMETHODIMP Clear(_In_opt_ CONST D2D1_COLOR_F *color)
802 {
803 mCtx->Clear(color);
804 return S_OK;
805 }
806
DrawGlyphRun(D2D1_POINT_2F baselineOrigin,_In_ CONST DWRITE_GLYPH_RUN * glyphRun,_In_opt_ CONST DWRITE_GLYPH_RUN_DESCRIPTION * glyphRunDescription,_In_ ID2D1Brush * foregroundBrush,DWRITE_MEASURING_MODE measuringMode)807 STDMETHODIMP DrawGlyphRun(
808 D2D1_POINT_2F baselineOrigin,
809 _In_ CONST DWRITE_GLYPH_RUN *glyphRun,
810 _In_opt_ CONST DWRITE_GLYPH_RUN_DESCRIPTION *glyphRunDescription,
811 _In_ ID2D1Brush *foregroundBrush,
812 DWRITE_MEASURING_MODE measuringMode
813 )
814 {
815 mCtx->DrawGlyphRun(baselineOrigin, glyphRun, glyphRunDescription,
816 foregroundBrush, measuringMode);
817 return S_OK;
818 }
819
DrawLine(D2D1_POINT_2F point0,D2D1_POINT_2F point1,_In_ ID2D1Brush * brush,FLOAT strokeWidth,_In_opt_ ID2D1StrokeStyle * strokeStyle)820 STDMETHODIMP DrawLine(
821 D2D1_POINT_2F point0,
822 D2D1_POINT_2F point1,
823 _In_ ID2D1Brush *brush,
824 FLOAT strokeWidth,
825 _In_opt_ ID2D1StrokeStyle *strokeStyle
826 )
827 {
828 mCtx->DrawLine(point0, point1, brush, strokeWidth, strokeStyle);
829 return S_OK;
830 }
831
DrawGeometry(_In_ ID2D1Geometry * geometry,_In_ ID2D1Brush * brush,FLOAT strokeWidth,_In_opt_ ID2D1StrokeStyle * strokeStyle)832 STDMETHODIMP DrawGeometry(
833 _In_ ID2D1Geometry *geometry,
834 _In_ ID2D1Brush *brush,
835 FLOAT strokeWidth,
836 _In_opt_ ID2D1StrokeStyle *strokeStyle
837 )
838 {
839 mCtx->DrawGeometry(geometry, brush, strokeWidth, strokeStyle);
840 return S_OK;
841 }
842
DrawRectangle(_In_ CONST D2D1_RECT_F * rect,_In_ ID2D1Brush * brush,FLOAT strokeWidth,_In_opt_ ID2D1StrokeStyle * strokeStyle)843 STDMETHODIMP DrawRectangle(
844 _In_ CONST D2D1_RECT_F *rect,
845 _In_ ID2D1Brush *brush,
846 FLOAT strokeWidth,
847 _In_opt_ ID2D1StrokeStyle *strokeStyle
848 )
849 {
850 mCtx->DrawRectangle(rect, brush, strokeWidth, strokeStyle);
851 return S_OK;
852 }
853
DrawBitmap(_In_ ID2D1Bitmap * bitmap,_In_opt_ CONST D2D1_RECT_F * destinationRectangle,FLOAT opacity,D2D1_INTERPOLATION_MODE interpolationMode,_In_opt_ CONST D2D1_RECT_F * sourceRectangle,_In_opt_ CONST D2D1_MATRIX_4X4_F * perspectiveTransform)854 STDMETHODIMP DrawBitmap(
855 _In_ ID2D1Bitmap *bitmap,
856 _In_opt_ CONST D2D1_RECT_F *destinationRectangle,
857 FLOAT opacity,
858 D2D1_INTERPOLATION_MODE interpolationMode,
859 _In_opt_ CONST D2D1_RECT_F *sourceRectangle,
860 _In_opt_ CONST D2D1_MATRIX_4X4_F *perspectiveTransform
861 )
862 {
863 mCtx->DrawBitmap(bitmap, destinationRectangle, opacity,
864 interpolationMode, sourceRectangle,
865 perspectiveTransform);
866 return S_OK;
867 }
868
DrawImage(_In_ ID2D1Image * image,_In_opt_ CONST D2D1_POINT_2F * targetOffset,_In_opt_ CONST D2D1_RECT_F * imageRectangle,D2D1_INTERPOLATION_MODE interpolationMode,D2D1_COMPOSITE_MODE compositeMode)869 STDMETHODIMP DrawImage(
870 _In_ ID2D1Image *image,
871 _In_opt_ CONST D2D1_POINT_2F *targetOffset,
872 _In_opt_ CONST D2D1_RECT_F *imageRectangle,
873 D2D1_INTERPOLATION_MODE interpolationMode,
874 D2D1_COMPOSITE_MODE compositeMode
875 )
876 {
877 mCtx->DrawImage(image, targetOffset, imageRectangle,
878 interpolationMode, compositeMode);
879 return S_OK;
880 }
881
DrawGdiMetafile(_In_ ID2D1GdiMetafile * gdiMetafile,_In_opt_ CONST D2D1_POINT_2F * targetOffset)882 STDMETHODIMP DrawGdiMetafile(
883 _In_ ID2D1GdiMetafile *gdiMetafile,
884 _In_opt_ CONST D2D1_POINT_2F *targetOffset
885 )
886 {
887 mCtx->DrawGdiMetafile(gdiMetafile, targetOffset);
888 return S_OK;
889 }
890
FillMesh(_In_ ID2D1Mesh * mesh,_In_ ID2D1Brush * brush)891 STDMETHODIMP FillMesh(
892 _In_ ID2D1Mesh *mesh,
893 _In_ ID2D1Brush *brush
894 )
895 {
896 mCtx->FillMesh(mesh, brush);
897 return S_OK;
898 }
899
FillOpacityMask(_In_ ID2D1Bitmap * opacityMask,_In_ ID2D1Brush * brush,_In_opt_ CONST D2D1_RECT_F * destinationRectangle,_In_opt_ CONST D2D1_RECT_F * sourceRectangle)900 STDMETHODIMP FillOpacityMask(
901 _In_ ID2D1Bitmap *opacityMask,
902 _In_ ID2D1Brush *brush,
903 _In_opt_ CONST D2D1_RECT_F *destinationRectangle,
904 _In_opt_ CONST D2D1_RECT_F *sourceRectangle
905 )
906 {
907 mCtx->FillOpacityMask(opacityMask, brush, destinationRectangle,
908 sourceRectangle);
909 return S_OK;
910 }
911
FillGeometry(_In_ ID2D1Geometry * geometry,_In_ ID2D1Brush * brush,_In_opt_ ID2D1Brush * opacityBrush)912 STDMETHODIMP FillGeometry(
913 _In_ ID2D1Geometry *geometry,
914 _In_ ID2D1Brush *brush,
915 _In_opt_ ID2D1Brush *opacityBrush
916 )
917 {
918 mCtx->FillGeometry(geometry, brush, opacityBrush);
919 return S_OK;
920 }
921
FillRectangle(_In_ CONST D2D1_RECT_F * rect,_In_ ID2D1Brush * brush)922 STDMETHODIMP FillRectangle(
923 _In_ CONST D2D1_RECT_F *rect,
924 _In_ ID2D1Brush *brush
925 )
926 {
927 mCtx->FillRectangle(rect, brush);
928 return S_OK;
929 }
930
PushAxisAlignedClip(_In_ CONST D2D1_RECT_F * clipRect,D2D1_ANTIALIAS_MODE antialiasMode)931 STDMETHODIMP PushAxisAlignedClip(
932 _In_ CONST D2D1_RECT_F *clipRect,
933 D2D1_ANTIALIAS_MODE antialiasMode
934 )
935 {
936 mCtx->PushAxisAlignedClip(clipRect, antialiasMode);
937 return S_OK;
938 }
939
PushLayer(_In_ CONST D2D1_LAYER_PARAMETERS1 * layerParameters1,_In_opt_ ID2D1Layer * layer)940 STDMETHODIMP PushLayer(
941 _In_ CONST D2D1_LAYER_PARAMETERS1 *layerParameters1,
942 _In_opt_ ID2D1Layer *layer
943 )
944 {
945 mCtx->PushLayer(layerParameters1, layer);
946 return S_OK;
947 }
948
PopAxisAlignedClip()949 STDMETHODIMP PopAxisAlignedClip()
950 {
951 mCtx->PopAxisAlignedClip();
952 return S_OK;
953 }
954
PopLayer()955 STDMETHODIMP PopLayer()
956 {
957 mCtx->PopLayer();
958 return S_OK;
959 }
960
961 ID2D1DeviceContext* mCtx;
962 };
963
964 }
965 }
966
967 #endif /* MOZILLA_GFX_HELPERSD2D_H_ */
968