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41
42 #ifndef QDRAWHELPER_P_H
43 #define QDRAWHELPER_P_H
44
45 //
46 // W A R N I N G
47 // -------------
48 //
49 // This file is not part of the Qt API. It exists purely as an
50 // implementation detail. This header file may change from version to
51 // version without notice, or even be removed.
52 //
53 // We mean it.
54 //
55
56 #include "QtCore/qglobal.h"
57 #include "QtGui/qcolor.h"
58 #include "QtGui/qpainter.h"
59 #include "QtGui/qimage.h"
60 #ifndef QT_FT_BEGIN_HEADER
61 #define QT_FT_BEGIN_HEADER
62 #define QT_FT_END_HEADER
63 #endif
64 #include "private/qrasterdefs_p.h"
65 #include <private/qsimd_p.h>
66 #include <private/qmath_p.h>
67
68 #ifdef Q_WS_QWS
69 #include "QtGui/qscreen_qws.h"
70 #endif
71
72 QT_BEGIN_NAMESPACE
73
74 #if defined(Q_CC_MSVC) && _MSCVER <= 1300 && !defined(Q_CC_INTEL)
75 #define Q_STATIC_TEMPLATE_SPECIALIZATION static
76 #else
77 #define Q_STATIC_TEMPLATE_SPECIALIZATION
78 #endif
79
80 #if defined(Q_CC_RVCT)
81 // RVCT doesn't like static template functions
82 # define Q_STATIC_TEMPLATE_FUNCTION
83 # define Q_STATIC_INLINE_FUNCTION static __forceinline
84 #else
85 # define Q_STATIC_TEMPLATE_FUNCTION static
86 # define Q_STATIC_INLINE_FUNCTION static inline
87 #endif
88
89 static const uint AMASK = 0xff000000;
90 static const uint RMASK = 0x00ff0000;
91 static const uint GMASK = 0x0000ff00;
92 static const uint BMASK = 0x000000ff;
93
94 /*******************************************************************************
95 * QSpan
96 *
97 * duplicate definition of FT_Span
98 */
99 typedef QT_FT_Span QSpan;
100
101 struct QSolidData;
102 struct QTextureData;
103 struct QGradientData;
104 struct QLinearGradientData;
105 struct QRadialGradientData;
106 struct QConicalGradientData;
107 struct QSpanData;
108 class QGradient;
109 class QRasterBuffer;
110 class QClipData;
111 class QRasterPaintEngineState;
112
113 typedef QT_FT_SpanFunc ProcessSpans;
114 typedef void (*BitmapBlitFunc)(QRasterBuffer *rasterBuffer,
115 int x, int y, quint32 color,
116 const uchar *bitmap,
117 int mapWidth, int mapHeight, int mapStride);
118
119 typedef void (*AlphamapBlitFunc)(QRasterBuffer *rasterBuffer,
120 int x, int y, quint32 color,
121 const uchar *bitmap,
122 int mapWidth, int mapHeight, int mapStride,
123 const QClipData *clip);
124
125 typedef void (*AlphaRGBBlitFunc)(QRasterBuffer *rasterBuffer,
126 int x, int y, quint32 color,
127 const uint *rgbmask,
128 int mapWidth, int mapHeight, int mapStride,
129 const QClipData *clip);
130
131 typedef void (*RectFillFunc)(QRasterBuffer *rasterBuffer,
132 int x, int y, int width, int height,
133 quint32 color);
134
135 typedef void (*SrcOverBlendFunc)(uchar *destPixels, int dbpl,
136 const uchar *src, int spbl,
137 int w, int h,
138 int const_alpha);
139
140 typedef void (*SrcOverScaleFunc)(uchar *destPixels, int dbpl,
141 const uchar *src, int spbl, int srch,
142 const QRectF &targetRect,
143 const QRectF &sourceRect,
144 const QRect &clipRect,
145 int const_alpha);
146
147 typedef void (*SrcOverTransformFunc)(uchar *destPixels, int dbpl,
148 const uchar *src, int spbl,
149 const QRectF &targetRect,
150 const QRectF &sourceRect,
151 const QRect &clipRect,
152 const QTransform &targetRectTransform,
153 int const_alpha);
154
155 typedef void (*MemRotateFunc)(const uchar *srcPixels, int w, int h, int sbpl, uchar *destPixels, int dbpl);
156
157 struct DrawHelper {
158 ProcessSpans blendColor;
159 ProcessSpans blendGradient;
160 BitmapBlitFunc bitmapBlit;
161 AlphamapBlitFunc alphamapBlit;
162 AlphaRGBBlitFunc alphaRGBBlit;
163 RectFillFunc fillRect;
164 };
165
166 extern SrcOverBlendFunc qBlendFunctions[QImage::NImageFormats][QImage::NImageFormats];
167 extern SrcOverScaleFunc qScaleFunctions[QImage::NImageFormats][QImage::NImageFormats];
168 extern SrcOverTransformFunc qTransformFunctions[QImage::NImageFormats][QImage::NImageFormats];
169 extern MemRotateFunc qMemRotateFunctions[QImage::NImageFormats][3];
170
171 extern DrawHelper qDrawHelper[QImage::NImageFormats];
172
173 void qBlendTexture(int count, const QSpan *spans, void *userData);
174 #if defined(Q_WS_QWS) && !defined(QT_NO_RASTERCALLBACKS)
175 extern DrawHelper qDrawHelperCallback[QImage::NImageFormats];
176 void qBlendTextureCallback(int count, const QSpan *spans, void *userData);
177 #endif
178
179 typedef void (QT_FASTCALL *CompositionFunction)(uint *dest, const uint *src, int length, uint const_alpha);
180 typedef void (QT_FASTCALL *CompositionFunctionSolid)(uint *dest, int length, uint color, uint const_alpha);
181
182 struct LinearGradientValues
183 {
184 qreal dx;
185 qreal dy;
186 qreal l;
187 qreal off;
188 };
189
190 struct RadialGradientValues
191 {
192 qreal dx;
193 qreal dy;
194 qreal dr;
195 qreal sqrfr;
196 qreal a;
197 qreal inv2a;
198 bool extended;
199 };
200
201 struct Operator;
202 typedef uint* (QT_FASTCALL *DestFetchProc)(uint *buffer, QRasterBuffer *rasterBuffer, int x, int y, int length);
203 typedef void (QT_FASTCALL *DestStoreProc)(QRasterBuffer *rasterBuffer, int x, int y, const uint *buffer, int length);
204 typedef const uint* (QT_FASTCALL *SourceFetchProc)(uint *buffer, const Operator *o, const QSpanData *data, int y, int x, int length);
205
206 struct Operator
207 {
208 QPainter::CompositionMode mode;
209 DestFetchProc dest_fetch;
210 DestStoreProc dest_store;
211 SourceFetchProc src_fetch;
212 CompositionFunctionSolid funcSolid;
213 CompositionFunction func;
214 union {
215 LinearGradientValues linear;
216 RadialGradientValues radial;
217 };
218 };
219
220 void qInitDrawhelperAsm();
221
222 class QRasterPaintEngine;
223
224 struct QSolidData
225 {
226 uint color;
227 };
228
229 struct QLinearGradientData
230 {
231 struct {
232 qreal x;
233 qreal y;
234 } origin;
235 struct {
236 qreal x;
237 qreal y;
238 } end;
239 };
240
241 struct QRadialGradientData
242 {
243 struct {
244 qreal x;
245 qreal y;
246 qreal radius;
247 } center;
248 struct {
249 qreal x;
250 qreal y;
251 qreal radius;
252 } focal;
253 };
254
255 struct QConicalGradientData
256 {
257 struct {
258 qreal x;
259 qreal y;
260 } center;
261 qreal angle;
262 };
263
264 struct QGradientData
265 {
266 QGradient::Spread spread;
267
268 union {
269 QLinearGradientData linear;
270 QRadialGradientData radial;
271 QConicalGradientData conical;
272 };
273
274 #ifdef Q_WS_QWS
275 #define GRADIENT_STOPTABLE_SIZE 256
276 #define GRADIENT_STOPTABLE_SIZE_SHIFT 8
277 #else
278 #define GRADIENT_STOPTABLE_SIZE 1024
279 #define GRADIENT_STOPTABLE_SIZE_SHIFT 10
280 #endif
281
282 uint* colorTable; //[GRADIENT_STOPTABLE_SIZE];
283
284 uint alphaColor : 1;
285 };
286
287 struct QTextureData
288 {
289 const uchar *imageData;
scanLineQTextureData290 const uchar *scanLine(int y) const { return imageData + y*bytesPerLine; }
291
292 int width;
293 int height;
294 // clip rect
295 int x1;
296 int y1;
297 int x2;
298 int y2;
299 int bytesPerLine;
300 QImage::Format format;
301 const QVector<QRgb> *colorTable;
302 bool hasAlpha;
303 enum Type {
304 Plain,
305 Tiled
306 };
307 Type type;
308 int const_alpha;
309 };
310
311 struct QSpanData
312 {
QSpanDataQSpanData313 QSpanData() : tempImage(0) {}
~QSpanDataQSpanData314 ~QSpanData() { delete tempImage; }
315
316 QRasterBuffer *rasterBuffer;
317 #ifdef Q_WS_QWS
318 QRasterPaintEngine *rasterEngine;
319 #endif
320 ProcessSpans blend;
321 ProcessSpans unclipped_blend;
322 BitmapBlitFunc bitmapBlit;
323 AlphamapBlitFunc alphamapBlit;
324 AlphaRGBBlitFunc alphaRGBBlit;
325 RectFillFunc fillRect;
326 qreal m11, m12, m13, m21, m22, m23, m33, dx, dy; // inverse xform matrix
327 const QClipData *clip;
328 enum Type {
329 None,
330 Solid,
331 LinearGradient,
332 RadialGradient,
333 ConicalGradient,
334 Texture
335 } type : 8;
336 int txop : 8;
337 int fast_matrix : 1;
338 bool bilinear;
339 QImage *tempImage;
340 union {
341 QSolidData solid;
342 QGradientData gradient;
343 QTextureData texture;
344 };
345
346 void init(QRasterBuffer *rb, const QRasterPaintEngine *pe);
347 void setup(const QBrush &brush, int alpha, QPainter::CompositionMode compositionMode);
348 void setupMatrix(const QTransform &matrix, int bilinear);
349 void initTexture(const QImage *image, int alpha, QTextureData::Type = QTextureData::Plain, const QRect &sourceRect = QRect());
350 void adjustSpanMethods();
351 };
352
qt_gradient_clamp(const QGradientData * data,int ipos)353 static inline uint qt_gradient_clamp(const QGradientData *data, int ipos)
354 {
355 if (ipos < 0 || ipos >= GRADIENT_STOPTABLE_SIZE) {
356 if (data->spread == QGradient::RepeatSpread) {
357 ipos = ipos % GRADIENT_STOPTABLE_SIZE;
358 ipos = ipos < 0 ? GRADIENT_STOPTABLE_SIZE + ipos : ipos;
359 } else if (data->spread == QGradient::ReflectSpread) {
360 const int limit = GRADIENT_STOPTABLE_SIZE * 2;
361 ipos = ipos % limit;
362 ipos = ipos < 0 ? limit + ipos : ipos;
363 ipos = ipos >= GRADIENT_STOPTABLE_SIZE ? limit - 1 - ipos : ipos;
364 } else {
365 if (ipos < 0)
366 ipos = 0;
367 else if (ipos >= GRADIENT_STOPTABLE_SIZE)
368 ipos = GRADIENT_STOPTABLE_SIZE-1;
369 }
370 }
371
372 Q_ASSERT(ipos >= 0);
373 Q_ASSERT(ipos < GRADIENT_STOPTABLE_SIZE);
374
375 return ipos;
376 }
377
qt_gradient_pixel(const QGradientData * data,qreal pos)378 static inline uint qt_gradient_pixel(const QGradientData *data, qreal pos)
379 {
380 int ipos = int(pos * (GRADIENT_STOPTABLE_SIZE - 1) + qreal(0.5));
381 return data->colorTable[qt_gradient_clamp(data, ipos)];
382 }
383
qRadialDeterminant(qreal a,qreal b,qreal c)384 static inline qreal qRadialDeterminant(qreal a, qreal b, qreal c)
385 {
386 return (b * b) - (4 * a * c);
387 }
388
389 template <class RadialFetchFunc>
qt_fetch_radial_gradient_template(uint * buffer,const Operator * op,const QSpanData * data,int y,int x,int length)390 const uint * QT_FASTCALL qt_fetch_radial_gradient_template(uint *buffer, const Operator *op, const QSpanData *data,
391 int y, int x, int length)
392 {
393 // avoid division by zero
394 if (qFuzzyIsNull(op->radial.a)) {
395 extern void (*qt_memfill32)(quint32 *dest, quint32 value, int count);
396 qt_memfill32(buffer, 0, length);
397 return buffer;
398 }
399
400 const uint *b = buffer;
401 qreal rx = data->m21 * (y + qreal(0.5))
402 + data->dx + data->m11 * (x + qreal(0.5));
403 qreal ry = data->m22 * (y + qreal(0.5))
404 + data->dy + data->m12 * (x + qreal(0.5));
405 bool affine = !data->m13 && !data->m23;
406
407 uint *end = buffer + length;
408 if (affine) {
409 rx -= data->gradient.radial.focal.x;
410 ry -= data->gradient.radial.focal.y;
411
412 qreal inv_a = 1 / qreal(2 * op->radial.a);
413
414 const qreal delta_rx = data->m11;
415 const qreal delta_ry = data->m12;
416
417 qreal b = 2*(op->radial.dr*data->gradient.radial.focal.radius + rx * op->radial.dx + ry * op->radial.dy);
418 qreal delta_b = 2*(delta_rx * op->radial.dx + delta_ry * op->radial.dy);
419 const qreal b_delta_b = 2 * b * delta_b;
420 const qreal delta_b_delta_b = 2 * delta_b * delta_b;
421
422 const qreal bb = b * b;
423 const qreal delta_bb = delta_b * delta_b;
424
425 b *= inv_a;
426 delta_b *= inv_a;
427
428 const qreal rxrxryry = rx * rx + ry * ry;
429 const qreal delta_rxrxryry = delta_rx * delta_rx + delta_ry * delta_ry;
430 const qreal rx_plus_ry = 2*(rx * delta_rx + ry * delta_ry);
431 const qreal delta_rx_plus_ry = 2 * delta_rxrxryry;
432
433 inv_a *= inv_a;
434
435 qreal det = (bb - 4 * op->radial.a * (op->radial.sqrfr - rxrxryry)) * inv_a;
436 qreal delta_det = (b_delta_b + delta_bb + 4 * op->radial.a * (rx_plus_ry + delta_rxrxryry)) * inv_a;
437 const qreal delta_delta_det = (delta_b_delta_b + 4 * op->radial.a * delta_rx_plus_ry) * inv_a;
438
439 RadialFetchFunc::fetch(buffer, end, op, data, det, delta_det, delta_delta_det, b, delta_b);
440 } else {
441 qreal rw = data->m23 * (y + qreal(0.5))
442 + data->m33 + data->m13 * (x + qreal(0.5));
443
444 while (buffer < end) {
445 if (rw == 0) {
446 *buffer = 0;
447 } else {
448 qreal invRw = 1 / rw;
449 qreal gx = rx * invRw - data->gradient.radial.focal.x;
450 qreal gy = ry * invRw - data->gradient.radial.focal.y;
451 qreal b = 2*(op->radial.dr*data->gradient.radial.focal.radius + gx*op->radial.dx + gy*op->radial.dy);
452 qreal det = qRadialDeterminant(op->radial.a, b, op->radial.sqrfr - (gx*gx + gy*gy));
453
454 quint32 result = 0;
455 if (det >= 0) {
456 qreal detSqrt = qSqrt(det);
457
458 qreal s0 = (-b - detSqrt) * op->radial.inv2a;
459 qreal s1 = (-b + detSqrt) * op->radial.inv2a;
460
461 qreal s = qMax(s0, s1);
462
463 if (data->gradient.radial.focal.radius + op->radial.dr * s >= 0)
464 result = qt_gradient_pixel(&data->gradient, s);
465 }
466
467 *buffer = result;
468 }
469
470 rx += data->m11;
471 ry += data->m12;
472 rw += data->m13;
473
474 ++buffer;
475 }
476 }
477
478 return b;
479 }
480
481 template <class Simd>
482 class QRadialFetchSimd
483 {
484 public:
fetch(uint * buffer,uint * end,const Operator * op,const QSpanData * data,qreal det,qreal delta_det,qreal delta_delta_det,qreal b,qreal delta_b)485 static void fetch(uint *buffer, uint *end, const Operator *op, const QSpanData *data, qreal det,
486 qreal delta_det, qreal delta_delta_det, qreal b, qreal delta_b)
487 {
488 typename Simd::Vect_buffer_f det_vec;
489 typename Simd::Vect_buffer_f delta_det4_vec;
490 typename Simd::Vect_buffer_f b_vec;
491
492 for (int i = 0; i < 4; ++i) {
493 det_vec.f[i] = det;
494 delta_det4_vec.f[i] = 4 * delta_det;
495 b_vec.f[i] = b;
496
497 det += delta_det;
498 delta_det += delta_delta_det;
499 b += delta_b;
500 }
501
502 const typename Simd::Float32x4 v_delta_delta_det16 = Simd::v_dup(16 * delta_delta_det);
503 const typename Simd::Float32x4 v_delta_delta_det6 = Simd::v_dup(6 * delta_delta_det);
504 const typename Simd::Float32x4 v_delta_b4 = Simd::v_dup(4 * delta_b);
505
506 const typename Simd::Float32x4 v_r0 = Simd::v_dup(data->gradient.radial.focal.radius);
507 const typename Simd::Float32x4 v_dr = Simd::v_dup(op->radial.dr);
508
509 const typename Simd::Float32x4 v_min = Simd::v_dup(0.0f);
510 const typename Simd::Float32x4 v_max = Simd::v_dup(float(GRADIENT_STOPTABLE_SIZE-1));
511 const typename Simd::Float32x4 v_half = Simd::v_dup(0.5f);
512
513 const typename Simd::Int32x4 v_repeat_mask = Simd::v_dup(~(uint(0xffffff) << GRADIENT_STOPTABLE_SIZE_SHIFT));
514 const typename Simd::Int32x4 v_reflect_mask = Simd::v_dup(~(uint(0xffffff) << (GRADIENT_STOPTABLE_SIZE_SHIFT+1)));
515
516 const typename Simd::Int32x4 v_reflect_limit = Simd::v_dup(2 * GRADIENT_STOPTABLE_SIZE - 1);
517
518 const int extended_mask = op->radial.extended ? 0x0 : ~0x0;
519
520 #define FETCH_RADIAL_LOOP_PROLOGUE \
521 while (buffer < end) { \
522 typename Simd::Vect_buffer_i v_buffer_mask; \
523 v_buffer_mask.v = Simd::v_greaterOrEqual(det_vec.v, v_min); \
524 const typename Simd::Float32x4 v_index_local = Simd::v_sub(Simd::v_sqrt(Simd::v_max(v_min, det_vec.v)), b_vec.v); \
525 const typename Simd::Float32x4 v_index = Simd::v_add(Simd::v_mul(v_index_local, v_max), v_half); \
526 v_buffer_mask.v = Simd::v_and(v_buffer_mask.v, Simd::v_greaterOrEqual(Simd::v_add(v_r0, Simd::v_mul(v_dr, v_index_local)), v_min)); \
527 typename Simd::Vect_buffer_i index_vec;
528 #define FETCH_RADIAL_LOOP_CLAMP_REPEAT \
529 index_vec.v = Simd::v_and(v_repeat_mask, Simd::v_toInt(v_index));
530 #define FETCH_RADIAL_LOOP_CLAMP_REFLECT \
531 const typename Simd::Int32x4 v_index_i = Simd::v_and(v_reflect_mask, Simd::v_toInt(v_index)); \
532 const typename Simd::Int32x4 v_index_i_inv = Simd::v_sub(v_reflect_limit, v_index_i); \
533 index_vec.v = Simd::v_min_16(v_index_i, v_index_i_inv);
534 #define FETCH_RADIAL_LOOP_CLAMP_PAD \
535 index_vec.v = Simd::v_toInt(Simd::v_min(v_max, Simd::v_max(v_min, v_index)));
536 #define FETCH_RADIAL_LOOP_EPILOGUE \
537 det_vec.v = Simd::v_add(Simd::v_add(det_vec.v, delta_det4_vec.v), v_delta_delta_det6); \
538 delta_det4_vec.v = Simd::v_add(delta_det4_vec.v, v_delta_delta_det16); \
539 b_vec.v = Simd::v_add(b_vec.v, v_delta_b4); \
540 for (int i = 0; i < 4; ++i) \
541 *buffer++ = (extended_mask | v_buffer_mask.i[i]) & data->gradient.colorTable[index_vec.i[i]]; \
542 }
543
544 #define FETCH_RADIAL_LOOP(FETCH_RADIAL_LOOP_CLAMP) \
545 FETCH_RADIAL_LOOP_PROLOGUE \
546 FETCH_RADIAL_LOOP_CLAMP \
547 FETCH_RADIAL_LOOP_EPILOGUE
548
549 switch (data->gradient.spread) {
550 case QGradient::RepeatSpread:
551 FETCH_RADIAL_LOOP(FETCH_RADIAL_LOOP_CLAMP_REPEAT)
552 break;
553 case QGradient::ReflectSpread:
554 FETCH_RADIAL_LOOP(FETCH_RADIAL_LOOP_CLAMP_REFLECT)
555 break;
556 case QGradient::PadSpread:
557 FETCH_RADIAL_LOOP(FETCH_RADIAL_LOOP_CLAMP_PAD)
558 break;
559 default:
560 Q_ASSERT(false);
561 }
562 }
563 };
564
565 #if defined(Q_CC_RVCT)
566 # pragma push
567 # pragma arm
568 #endif
INTERPOLATE_PIXEL_255(uint x,uint a,uint y,uint b)569 Q_STATIC_INLINE_FUNCTION uint INTERPOLATE_PIXEL_255(uint x, uint a, uint y, uint b) {
570 uint t = (x & 0xff00ff) * a + (y & 0xff00ff) * b;
571 t = (t + ((t >> 8) & 0xff00ff) + 0x800080) >> 8;
572 t &= 0xff00ff;
573
574 x = ((x >> 8) & 0xff00ff) * a + ((y >> 8) & 0xff00ff) * b;
575 x = (x + ((x >> 8) & 0xff00ff) + 0x800080);
576 x &= 0xff00ff00;
577 x |= t;
578 return x;
579 }
580 #if defined(Q_CC_RVCT)
581 # pragma pop
582 #endif
583
584 #if QT_POINTER_SIZE == 8 // 64-bit versions
585
INTERPOLATE_PIXEL_256(uint x,uint a,uint y,uint b)586 Q_STATIC_INLINE_FUNCTION uint INTERPOLATE_PIXEL_256(uint x, uint a, uint y, uint b) {
587 quint64 t = (((quint64(x)) | ((quint64(x)) << 24)) & 0x00ff00ff00ff00ff) * a;
588 t += (((quint64(y)) | ((quint64(y)) << 24)) & 0x00ff00ff00ff00ff) * b;
589 t >>= 8;
590 t &= 0x00ff00ff00ff00ff;
591 return (uint(t)) | (uint(t >> 24));
592 }
593
BYTE_MUL(uint x,uint a)594 Q_STATIC_INLINE_FUNCTION uint BYTE_MUL(uint x, uint a) {
595 quint64 t = (((quint64(x)) | ((quint64(x)) << 24)) & 0x00ff00ff00ff00ff) * a;
596 t = (t + ((t >> 8) & 0xff00ff00ff00ff) + 0x80008000800080) >> 8;
597 t &= 0x00ff00ff00ff00ff;
598 return (uint(t)) | (uint(t >> 24));
599 }
600
PREMUL(uint x)601 Q_STATIC_INLINE_FUNCTION uint PREMUL(uint x) {
602 uint a = x >> 24;
603 quint64 t = (((quint64(x)) | ((quint64(x)) << 24)) & 0x00ff00ff00ff00ff) * a;
604 t = (t + ((t >> 8) & 0xff00ff00ff00ff) + 0x80008000800080) >> 8;
605 t &= 0x000000ff00ff00ff;
606 return (uint(t)) | (uint(t >> 24)) | (a << 24);
607 }
608
609 #else // 32-bit versions
610
INTERPOLATE_PIXEL_256(uint x,uint a,uint y,uint b)611 Q_STATIC_INLINE_FUNCTION uint INTERPOLATE_PIXEL_256(uint x, uint a, uint y, uint b) {
612 uint t = (x & 0xff00ff) * a + (y & 0xff00ff) * b;
613 t >>= 8;
614 t &= 0xff00ff;
615
616 x = ((x >> 8) & 0xff00ff) * a + ((y >> 8) & 0xff00ff) * b;
617 x &= 0xff00ff00;
618 x |= t;
619 return x;
620 }
621
622 #if defined(Q_CC_RVCT)
623 # pragma push
624 # pragma arm
625 #endif
BYTE_MUL(uint x,uint a)626 Q_STATIC_INLINE_FUNCTION uint BYTE_MUL(uint x, uint a) {
627 uint t = (x & 0xff00ff) * a;
628 t = (t + ((t >> 8) & 0xff00ff) + 0x800080) >> 8;
629 t &= 0xff00ff;
630
631 x = ((x >> 8) & 0xff00ff) * a;
632 x = (x + ((x >> 8) & 0xff00ff) + 0x800080);
633 x &= 0xff00ff00;
634 x |= t;
635 return x;
636 }
637 #if defined(Q_CC_RVCT)
638 # pragma pop
639 #endif
640
PREMUL(uint x)641 Q_STATIC_INLINE_FUNCTION uint PREMUL(uint x) {
642 uint a = x >> 24;
643 uint t = (x & 0xff00ff) * a;
644 t = (t + ((t >> 8) & 0xff00ff) + 0x800080) >> 8;
645 t &= 0xff00ff;
646
647 x = ((x >> 8) & 0xff) * a;
648 x = (x + ((x >> 8) & 0xff) + 0x80);
649 x &= 0xff00;
650 x |= t | (a << 24);
651 return x;
652 }
653 #endif
654
655
BYTE_MUL_RGB16(uint x,uint a)656 Q_STATIC_INLINE_FUNCTION uint BYTE_MUL_RGB16(uint x, uint a) {
657 a += 1;
658 uint t = (((x & 0x07e0)*a) >> 8) & 0x07e0;
659 t |= (((x & 0xf81f)*(a>>2)) >> 6) & 0xf81f;
660 return t;
661 }
662
BYTE_MUL_RGB16_32(uint x,uint a)663 Q_STATIC_INLINE_FUNCTION uint BYTE_MUL_RGB16_32(uint x, uint a) {
664 uint t = (((x & 0xf81f07e0) >> 5)*a) & 0xf81f07e0;
665 t |= (((x & 0x07e0f81f)*a) >> 5) & 0x07e0f81f;
666 return t;
667 }
668
669 #define INV_PREMUL(p) \
670 (qAlpha(p) == 0 ? 0 : \
671 ((qAlpha(p) << 24) \
672 | (((255*qRed(p))/ qAlpha(p)) << 16) \
673 | (((255*qGreen(p)) / qAlpha(p)) << 8) \
674 | ((255*qBlue(p)) / qAlpha(p))))
675
676 template <class DST, class SRC>
qt_colorConvert(SRC color,DST dummy)677 inline DST qt_colorConvert(SRC color, DST dummy)
678 {
679 Q_UNUSED(dummy);
680 return DST(color);
681 }
682
683
684 template <>
qt_colorConvert(quint16 color,quint32 dummy)685 inline quint32 qt_colorConvert(quint16 color, quint32 dummy)
686 {
687 Q_UNUSED(dummy);
688 const int r = (color & 0xf800);
689 const int g = (color & 0x07e0);
690 const int b = (color & 0x001f);
691 const int tr = (r >> 8) | (r >> 13);
692 const int tg = (g >> 3) | (g >> 9);
693 const int tb = (b << 3) | (b >> 2);
694
695 return qRgb(tr, tg, tb);
696 }
697
698 template <>
qt_colorConvert(quint32 color,quint16 dummy)699 inline quint16 qt_colorConvert(quint32 color, quint16 dummy)
700 {
701 Q_UNUSED(dummy);
702 const int r = qRed(color) << 8;
703 const int g = qGreen(color) << 3;
704 const int b = qBlue(color) >> 3;
705
706 return (r & 0xf800) | (g & 0x07e0)| (b & 0x001f);
707 }
708
709 class quint32p
710 {
711 public:
quint32p(quint32 v)712 inline quint32p(quint32 v) : data(PREMUL(v)) {}
713
quint32()714 inline operator quint32() const { return data; }
715
quint16()716 inline operator quint16() const
717 {
718 return qt_colorConvert<quint16, quint32>(data, 0);
719 }
720
fromRawData(quint32 v)721 Q_STATIC_INLINE_FUNCTION quint32p fromRawData(quint32 v)
722 {
723 quint32p p;
724 p.data = v;
725 return p;
726 }
727
728 private:
quint32p()729 quint32p() {}
730 quint32 data;
731 } Q_PACKED;
732
733 class qabgr8888
734 {
735 public:
qabgr8888(quint32 v)736 inline qabgr8888(quint32 v)
737 {
738 data = qRgba(qBlue(v), qGreen(v), qRed(v), qAlpha(v));
739 }
740
741 inline bool operator==(const qabgr8888 &v) const { return data == v.data; }
742
743 private:
744 quint32 data;
745 } Q_PACKED;
746
747 class qrgb565;
748
749 class qargb8565
750 {
751 public:
hasAlpha()752 Q_STATIC_INLINE_FUNCTION bool hasAlpha() { return true; }
753
qargb8565()754 inline qargb8565() {}
755 inline qargb8565(quint32 v);
756 inline explicit qargb8565(quint32p v);
757 inline qargb8565(const qargb8565 &v);
758 inline qargb8565(const qrgb565 &v);
759
760 inline operator quint32() const;
761 inline operator quint16() const;
762
alpha()763 inline quint8 alpha() const { return data[0]; }
truncedAlpha()764 inline qargb8565 truncedAlpha() {
765 data[0] &= 0xf8;
766 data[1] &= 0xdf;
767 return *this;
768 }
alpha(quint8 a)769 Q_STATIC_INLINE_FUNCTION quint8 alpha(quint8 a) { return (a + 1) >> 3; }
ialpha(quint8 a)770 Q_STATIC_INLINE_FUNCTION quint8 ialpha(quint8 a) { return 0x20 - alpha(a); }
771
772 inline qargb8565 byte_mul(quint8 a) const;
773 inline qargb8565 operator+(qargb8565 v) const;
774 inline bool operator==(const qargb8565 &v) const;
775
776 inline quint32 rawValue() const;
777 inline quint16 rawValue16() const;
778
779 private:
780 friend class qrgb565;
781
782 quint8 data[3];
783 } Q_PACKED;
784
785 class qrgb565
786 {
787 public:
hasAlpha()788 Q_STATIC_INLINE_FUNCTION bool hasAlpha() { return false; }
789
data(v)790 qrgb565(int v = 0) : data(v) {}
791
792 inline explicit qrgb565(quint32p v);
793 inline explicit qrgb565(quint32 v);
794 inline explicit qrgb565(const qargb8565 &v);
795
796 inline operator quint32() const;
797 inline operator quint16() const;
798
799 inline qrgb565 operator+(qrgb565 v) const;
800
alpha()801 inline quint8 alpha() const { return 0xff; }
truncedAlpha()802 inline qrgb565 truncedAlpha() { return *this; }
alpha(quint8 a)803 Q_STATIC_INLINE_FUNCTION quint8 alpha(quint8 a) { return (a + 1) >> 3; }
ialpha(quint8 a)804 Q_STATIC_INLINE_FUNCTION quint8 ialpha(quint8 a) { return 0x20 - alpha(a); }
805
806 inline qrgb565 byte_mul(quint8 a) const;
807
808 inline bool operator==(const qrgb565 &v) const;
rawValue()809 inline quint16 rawValue() const { return data; }
810
811 private:
812 friend class qargb8565;
813
814 quint16 data;
815 } Q_PACKED;
816
qargb8565(quint32 v)817 qargb8565::qargb8565(quint32 v)
818 {
819 *this = qargb8565(quint32p(v));
820 }
821
qargb8565(quint32p v)822 qargb8565::qargb8565(quint32p v)
823 {
824 data[0] = qAlpha(v);
825 const int r = qRed(v);
826 const int g = qGreen(v);
827 const int b = qBlue(v);
828 data[1] = ((g << 3) & 0xe0) | (b >> 3);
829 data[2] = (r & 0xf8) | (g >> 5);
830 }
831
qargb8565(const qargb8565 & v)832 qargb8565::qargb8565(const qargb8565 &v)
833 {
834 data[0] = v.data[0];
835 data[1] = v.data[1];
836 data[2] = v.data[2];
837 }
838
qargb8565(const qrgb565 & v)839 qargb8565::qargb8565(const qrgb565 &v)
840 {
841 data[0] = 0xff;
842 data[1] = v.data & 0xff;
843 data[2] = v.data >> 8;
844 }
845
quint32()846 qargb8565::operator quint32() const
847 {
848 const quint16 rgb = (data[2] << 8) | data[1];
849 const int a = data[0];
850 const int r = (rgb & 0xf800);
851 const int g = (rgb & 0x07e0);
852 const int b = (rgb & 0x001f);
853 const int tr = qMin(a, (r >> 8) | (r >> 13));
854 const int tg = qMin(a, (g >> 3) | (g >> 9));
855 const int tb = qMin(a, (b << 3) | (b >> 2));
856 return qRgba(tr, tg, tb, data[0]);
857 }
858
quint16()859 qargb8565::operator quint16() const
860 {
861 return (data[2] << 8) | data[1];
862 }
863
864 qargb8565 qargb8565::operator+(qargb8565 v) const
865 {
866 qargb8565 t;
867 t.data[0] = data[0] + v.data[0];
868 const quint16 rgb = ((data[2] + v.data[2]) << 8)
869 + (data[1] + v.data[1]);
870 t.data[1] = rgb & 0xff;
871 t.data[2] = rgb >> 8;
872 return t;
873 }
874
byte_mul(quint8 a)875 qargb8565 qargb8565::byte_mul(quint8 a) const
876 {
877 qargb8565 result;
878 result.data[0] = (data[0] * a) >> 5;
879
880 const quint16 x = (data[2] << 8) | data[1];
881 const quint16 t = ((((x & 0x07e0) >> 5) * a) & 0x07e0) |
882 ((((x & 0xf81f) * a) >> 5) & 0xf81f);
883 result.data[1] = t & 0xff;
884 result.data[2] = t >> 8;
885 return result;
886 }
887
888 bool qargb8565::operator==(const qargb8565 &v) const
889 {
890 return data[0] == v.data[0]
891 && data[1] == v.data[1]
892 && data[2] == v.data[2];
893 }
894
rawValue()895 quint32 qargb8565::rawValue() const
896 {
897 return (data[2] << 16) | (data[1] << 8) | data[0];
898 }
899
rawValue16()900 quint16 qargb8565::rawValue16() const
901 {
902 return (data[2] << 8) | data[1];
903 }
904
qrgb565(quint32p v)905 qrgb565::qrgb565(quint32p v)
906 {
907 *this = qrgb565(quint32(v));
908 }
909
qrgb565(quint32 v)910 qrgb565::qrgb565(quint32 v)
911 {
912 const int r = qRed(v) << 8;
913 const int g = qGreen(v) << 3;
914 const int b = qBlue(v) >> 3;
915
916 data = (r & 0xf800) | (g & 0x07e0)| (b & 0x001f);
917 }
918
qrgb565(const qargb8565 & v)919 qrgb565::qrgb565(const qargb8565 &v)
920 {
921 data = (v.data[2] << 8) | v.data[1];
922 }
923
quint32()924 qrgb565::operator quint32() const
925 {
926 const int r = (data & 0xf800);
927 const int g = (data & 0x07e0);
928 const int b = (data & 0x001f);
929 const int tr = (r >> 8) | (r >> 13);
930 const int tg = (g >> 3) | (g >> 9);
931 const int tb = (b << 3) | (b >> 2);
932 return qRgb(tr, tg, tb);
933 }
934
quint16()935 qrgb565::operator quint16() const
936 {
937 return data;
938 }
939
940 qrgb565 qrgb565::operator+(qrgb565 v) const
941 {
942 qrgb565 t;
943 t.data = data + v.data;
944 return t;
945 }
946
byte_mul(quint8 a)947 qrgb565 qrgb565::byte_mul(quint8 a) const
948 {
949 qrgb565 result;
950 result.data = ((((data & 0x07e0) >> 5) * a) & 0x07e0) |
951 ((((data & 0xf81f) * a) >> 5) & 0xf81f);
952 return result;
953 }
954
955 bool qrgb565::operator==(const qrgb565 &v) const
956 {
957 return data == v.data;
958 }
959
960 class qbgr565
961 {
962 public:
qbgr565(quint16 v)963 inline qbgr565(quint16 v)
964 {
965 data = ((v & 0x001f) << 11) |
966 (v & 0x07e0) |
967 ((v & 0xf800) >> 11);
968 }
969
970 inline bool operator==(const qbgr565 &v) const
971 {
972 return data == v.data;
973 }
974
975 private:
976 quint16 data;
977 } Q_PACKED;
978
979 class qrgb555;
980
981 class qargb8555
982 {
983 public:
hasAlpha()984 Q_STATIC_INLINE_FUNCTION bool hasAlpha() { return true; }
985
qargb8555()986 qargb8555() {}
987 inline qargb8555(quint32 v);
988 inline explicit qargb8555(quint32p v);
989 inline qargb8555(const qargb8555 &v);
990 inline qargb8555(const qrgb555 &v);
991
992 inline operator quint32() const;
993
alpha()994 inline quint8 alpha() const { return data[0]; }
truncedAlpha()995 inline qargb8555 truncedAlpha() { data[0] &= 0xf8; return *this; }
alpha(quint8 a)996 Q_STATIC_INLINE_FUNCTION quint8 alpha(quint8 a) { return (a + 1) >> 3; }
ialpha(quint8 a)997 Q_STATIC_INLINE_FUNCTION quint8 ialpha(quint8 a) { return 0x20 - alpha(a); }
998
999 inline qargb8555 operator+(qargb8555 v) const;
1000 inline qargb8555 byte_mul(quint8 a) const;
1001
1002 inline bool operator==(const qargb8555 &v) const;
1003
1004 inline quint32 rawValue() const;
1005
1006 private:
1007 friend class qrgb555;
1008 quint8 data[3];
1009 } Q_PACKED;
1010
1011 class qrgb555
1012 {
1013 public:
hasAlpha()1014 Q_STATIC_INLINE_FUNCTION bool hasAlpha() { return false; }
1015
data(v)1016 inline qrgb555(int v = 0) : data(v) {}
1017
qrgb555(quint32p v)1018 inline explicit qrgb555(quint32p v) { *this = qrgb555(quint32(v)); }
1019
qrgb555(quint32 v)1020 inline explicit qrgb555(quint32 v)
1021 {
1022 const int r = qRed(v) << 7;
1023 const int g = qGreen(v) << 2;
1024 const int b = qBlue(v) >> 3;
1025
1026 data = (r & 0x7c00) | (g & 0x03e0) | (b & 0x001f);
1027 }
1028
qrgb555(quint16 v)1029 inline explicit qrgb555(quint16 v)
1030 {
1031 data = ((v >> 1) & (0x7c00 | 0x03e0)) |
1032 (v & 0x001f);
1033 }
1034
1035 inline explicit qrgb555(const qargb8555 &v);
1036
quint32()1037 inline operator quint32() const
1038 {
1039 const int r = (data & 0x7c00);
1040 const int g = (data & 0x03e0);
1041 const int b = (data & 0x001f);
1042 const int tr = (r >> 7) | (r >> 12);
1043 const int tg = (g >> 2) | (g >> 7);
1044 const int tb = (b << 3) | (b >> 2);
1045
1046 return qRgb(tr, tg, tb);
1047 }
1048
quint16()1049 inline operator quint16() const
1050 {
1051 const int r = ((data & 0x7c00) << 1) & 0xf800;
1052 const int g = (((data & 0x03e0) << 1) | ((data >> 4) & 0x0020)) & 0x07e0;
1053 const int b = (data & 0x001f);
1054
1055 return r | g | b;
1056 }
1057
1058 inline qrgb555 operator+(qrgb555 v) const;
1059 inline qrgb555 byte_mul(quint8 a) const;
1060
alpha()1061 inline quint8 alpha() const { return 0xff; }
truncedAlpha()1062 inline qrgb555 truncedAlpha() { return *this; }
alpha(quint8 a)1063 Q_STATIC_INLINE_FUNCTION quint8 alpha(quint8 a) { return (a + 1) >> 3; }
ialpha(quint8 a)1064 Q_STATIC_INLINE_FUNCTION quint8 ialpha(quint8 a) { return 0x20 - alpha(a); }
1065
1066 inline bool operator==(const qrgb555 &v) const { return v.data == data; }
1067 inline bool operator!=(const qrgb555 &v) const { return v.data != data; }
1068
rawValue()1069 inline quint16 rawValue() const { return data; }
1070
1071 private:
1072 friend class qargb8555;
1073 friend class qbgr555;
1074 quint16 data;
1075
1076 } Q_PACKED;
1077
qrgb555(const qargb8555 & v)1078 qrgb555::qrgb555(const qargb8555 &v)
1079 {
1080 data = (v.data[2] << 8) | v.data[1];
1081 }
1082
1083 qrgb555 qrgb555::operator+(qrgb555 v) const
1084 {
1085 qrgb555 t;
1086 t.data = data + v.data;
1087 return t;
1088 }
1089
byte_mul(quint8 a)1090 qrgb555 qrgb555::byte_mul(quint8 a) const
1091 {
1092 quint16 t = (((data & 0x3e0) * a) >> 5) & 0x03e0;
1093 t |= (((data & 0x7c1f) * a) >> 5) & 0x7c1f;
1094
1095 qrgb555 result;
1096 result.data = t;
1097 return result;
1098 }
1099
1100 class qbgr555
1101 {
1102 public:
qbgr555(quint32 v)1103 inline qbgr555(quint32 v) { *this = qbgr555(qrgb555(v)); }
1104
qbgr555(qrgb555 v)1105 inline qbgr555(qrgb555 v)
1106 {
1107 data = ((v.data & 0x001f) << 10) |
1108 (v.data & 0x03e0) |
1109 ((v.data & 0x7c00) >> 10);
1110 }
1111
1112 inline bool operator==(const qbgr555 &v) const
1113 {
1114 return data == v.data;
1115 }
1116
1117 private:
1118 quint16 data;
1119 } Q_PACKED;
1120
qargb8555(quint32 v)1121 qargb8555::qargb8555(quint32 v)
1122 {
1123 v = quint32p(v);
1124 data[0] = qAlpha(v);
1125 const int r = qRed(v);
1126 const int g = qGreen(v);
1127 const int b = qBlue(v);
1128 data[1] = ((g << 2) & 0xe0) | (b >> 3);
1129 data[2] = ((r >> 1) & 0x7c) | (g >> 6);
1130
1131 }
1132
qargb8555(quint32p v)1133 qargb8555::qargb8555(quint32p v)
1134 {
1135 data[0] = qAlpha(v);
1136 const int r = qRed(v);
1137 const int g = qGreen(v);
1138 const int b = qBlue(v);
1139 data[1] = ((g << 2) & 0xe0) | (b >> 3);
1140 data[2] = ((r >> 1) & 0x7c) | (g >> 6);
1141 }
1142
qargb8555(const qargb8555 & v)1143 qargb8555::qargb8555(const qargb8555 &v)
1144 {
1145 data[0] = v.data[0];
1146 data[1] = v.data[1];
1147 data[2] = v.data[2];
1148 }
1149
qargb8555(const qrgb555 & v)1150 qargb8555::qargb8555(const qrgb555 &v)
1151 {
1152 data[0] = 0xff;
1153 data[1] = v.data & 0xff;
1154 data[2] = v.data >> 8;
1155 }
1156
quint32()1157 qargb8555::operator quint32() const
1158 {
1159 const quint16 rgb = (data[2] << 8) | data[1];
1160 const int r = (rgb & 0x7c00);
1161 const int g = (rgb & 0x03e0);
1162 const int b = (rgb & 0x001f);
1163 const int tr = (r >> 7) | (r >> 12);
1164 const int tg = (g >> 2) | (g >> 7);
1165 const int tb = (b << 3) | (b >> 2);
1166
1167 return qRgba(tr, tg, tb, data[0]);
1168 }
1169
1170 bool qargb8555::operator==(const qargb8555 &v) const
1171 {
1172 return data[0] == v.data[0]
1173 && data[1] == v.data[1]
1174 && data[2] == v.data[2];
1175 }
1176
rawValue()1177 quint32 qargb8555::rawValue() const
1178 {
1179 return (data[2] << 16) | (data[1] << 8) | data[0];
1180 }
1181
1182 qargb8555 qargb8555::operator+(qargb8555 v) const
1183 {
1184 qargb8555 t;
1185 t.data[0] = data[0] + v.data[0];
1186 const quint16 rgb = ((data[2] + v.data[2]) << 8)
1187 + (data[1] + v.data[1]);
1188 t.data[1] = rgb & 0xff;
1189 t.data[2] = rgb >> 8;
1190 return t;
1191 }
1192
byte_mul(quint8 a)1193 qargb8555 qargb8555::byte_mul(quint8 a) const
1194 {
1195 qargb8555 result;
1196 result.data[0] = (data[0] * a) >> 5;
1197
1198 const quint16 x = (data[2] << 8) | data[1];
1199 quint16 t = (((x & 0x3e0) * a) >> 5) & 0x03e0;
1200 t |= (((x & 0x7c1f) * a) >> 5) & 0x7c1f;
1201 result.data[1] = t & 0xff;
1202 result.data[2] = t >> 8;
1203 return result;
1204
1205 }
1206
1207 class qrgb666;
1208
1209 class qargb6666
1210 {
1211 public:
hasAlpha()1212 Q_STATIC_INLINE_FUNCTION bool hasAlpha() { return true; }
1213
qargb6666()1214 inline qargb6666() {}
qargb6666(quint32 v)1215 inline qargb6666(quint32 v) { *this = qargb6666(quint32p(v)); }
1216 inline explicit qargb6666(quint32p v);
1217 inline qargb6666(const qargb6666 &v);
1218 inline qargb6666(const qrgb666 &v);
1219
1220 inline operator quint32 () const;
1221
1222 inline quint8 alpha() const;
truncedAlpha()1223 inline qargb6666 truncedAlpha() { return *this; }
alpha(quint8 a)1224 Q_STATIC_INLINE_FUNCTION quint8 alpha(quint8 a) { return (a + 1) >> 2; }
ialpha(quint8 a)1225 Q_STATIC_INLINE_FUNCTION quint8 ialpha(quint8 a) { return (255 - a + 1) >> 2; }
1226
1227 inline qargb6666 byte_mul(quint8 a) const;
1228 inline qargb6666 operator+(qargb6666 v) const;
1229 inline bool operator==(const qargb6666 &v) const;
1230
1231 inline quint32 rawValue() const;
1232
1233 private:
1234 friend class qrgb666;
1235 quint8 data[3];
1236
1237 } Q_PACKED;
1238
1239 class qrgb666
1240 {
1241 public:
hasAlpha()1242 Q_STATIC_INLINE_FUNCTION bool hasAlpha() { return false; }
1243
qrgb666()1244 inline qrgb666() {}
1245 inline qrgb666(quint32 v);
1246 inline qrgb666(const qargb6666 &v);
1247
1248 inline operator quint32 () const;
1249
alpha()1250 inline quint8 alpha() const { return 0xff; }
truncedAlpha()1251 inline qrgb666 truncedAlpha() { return *this; }
alpha(quint8 a)1252 Q_STATIC_INLINE_FUNCTION quint8 alpha(quint8 a) { return (a + 1) >> 2; }
ialpha(quint8 a)1253 Q_STATIC_INLINE_FUNCTION quint8 ialpha(quint8 a) { return (255 - a + 1) >> 2; }
1254
1255 inline qrgb666 operator+(qrgb666 v) const;
1256 inline qrgb666 byte_mul(quint8 a) const;
1257
1258 inline bool operator==(const qrgb666 &v) const;
1259 inline bool operator!=(const qrgb666 &v) const { return !(*this == v); }
1260
rawValue()1261 inline quint32 rawValue() const
1262 {
1263 return (data[2] << 16) | (data[1] << 8) | data[0];
1264 }
1265
1266 private:
1267 friend class qargb6666;
1268
1269 quint8 data[3];
1270 } Q_PACKED;
1271
qrgb666(quint32 v)1272 qrgb666::qrgb666(quint32 v)
1273 {
1274 const uchar b = qBlue(v);
1275 const uchar g = qGreen(v);
1276 const uchar r = qRed(v);
1277 const uint p = (b >> 2) | ((g >> 2) << 6) | ((r >> 2) << 12);
1278 data[0] = qBlue(p);
1279 data[1] = qGreen(p);
1280 data[2] = qRed(p);
1281 }
1282
qrgb666(const qargb6666 & v)1283 qrgb666::qrgb666(const qargb6666 &v)
1284 {
1285 data[0] = v.data[0];
1286 data[1] = v.data[1];
1287 data[2] = v.data[2] & 0x03;
1288 }
1289
quint32()1290 qrgb666::operator quint32 () const
1291 {
1292 const uchar r = (data[2] << 6) | ((data[1] & 0xf0) >> 2) | (data[2] & 0x3);
1293 const uchar g = (data[1] << 4) | ((data[0] & 0xc0) >> 4) | ((data[1] & 0x0f) >> 2);
1294 const uchar b = (data[0] << 2) | ((data[0] & 0x3f) >> 4);
1295 return qRgb(r, g, b);
1296 }
1297
1298 qrgb666 qrgb666::operator+(qrgb666 v) const
1299 {
1300 const quint32 x1 = (data[2] << 16) | (data[1] << 8) | data[0];
1301 const quint32 x2 = (v.data[2] << 16) | (v.data[1] << 8) | v.data[0];
1302 const quint32 t = x1 + x2;
1303 qrgb666 r;
1304 r.data[0] = t & 0xff;
1305 r.data[1] = (t >> 8) & 0xff;
1306 r.data[2] = (t >> 16) & 0xff;
1307 return r;
1308 }
1309
byte_mul(quint8 a)1310 qrgb666 qrgb666::byte_mul(quint8 a) const
1311 {
1312 const quint32 x = (data[2] << 16) | (data[1] << 8) | data[0];
1313 const quint32 t = ((((x & 0x03f03f) * a) >> 6) & 0x03f03f) |
1314 ((((x & 0x000fc0) * a) >> 6) & 0x000fc0);
1315
1316 qrgb666 r;
1317 r.data[0] = t & 0xff;
1318 r.data[1] = (t >> 8) & 0xff;
1319 r.data[2] = (t >> 16) & 0xff;
1320 return r;
1321 }
1322
1323 bool qrgb666::operator==(const qrgb666 &v) const
1324 {
1325 return (data[0] == v.data[0] &&
1326 data[1] == v.data[1] &&
1327 data[2] == v.data[2]);
1328 }
1329
qargb6666(quint32p v)1330 qargb6666::qargb6666(quint32p v)
1331 {
1332 const quint8 b = qBlue(v) >> 2;
1333 const quint8 g = qGreen(v) >> 2;
1334 const quint8 r = qRed(v) >> 2;
1335 const quint8 a = qAlpha(v) >> 2;
1336 const uint p = (a << 18) | (r << 12) | (g << 6) | b;
1337 data[0] = qBlue(p);
1338 data[1] = qGreen(p);
1339 data[2] = qRed(p);
1340 }
1341
qargb6666(const qargb6666 & v)1342 qargb6666::qargb6666(const qargb6666 &v)
1343 {
1344 data[0] = v.data[0];
1345 data[1] = v.data[1];
1346 data[2] = v.data[2];
1347 }
1348
qargb6666(const qrgb666 & v)1349 qargb6666::qargb6666(const qrgb666 &v)
1350 {
1351 data[0] = v.data[0];
1352 data[1] = v.data[1];
1353 data[2] = (v.data[2] | 0xfc);
1354 }
1355
quint32()1356 qargb6666::operator quint32 () const
1357 {
1358 const quint8 r = (data[2] << 6) | ((data[1] & 0xf0) >> 2) | (data[2] & 0x3);
1359 const quint8 g = (data[1] << 4) | ((data[0] & 0xc0) >> 4) | ((data[1] & 0x0f) >> 2);
1360 const quint8 b = (data[0] << 2) | ((data[0] & 0x3f) >> 4);
1361 const quint8 a = (data[2] & 0xfc) | (data[2] >> 6);
1362 return qRgba(r, g, b, a);
1363 }
1364
1365 qargb6666 qargb6666::operator+(qargb6666 v) const
1366 {
1367 const quint32 x1 = (data[2] << 16) | (data[1] << 8) | data[0];
1368 const quint32 x2 = (v.data[2] << 16) | (v.data[1] << 8) | v.data[0];
1369 const quint32 t = x1 + x2;
1370 qargb6666 r;
1371 r.data[0] = t & 0xff;
1372 r.data[1] = (t >> 8) & 0xff;
1373 r.data[2] = (t >> 16) & 0xff;
1374 return r;
1375 }
1376
alpha()1377 quint8 qargb6666::alpha() const
1378 {
1379 return (data[2] & 0xfc) | (data[2] >> 6);
1380 }
1381
byte_mul(quint8 a)1382 inline qargb6666 qargb6666::byte_mul(quint8 a) const
1383 {
1384 const quint32 x = (data[2] << 16) | (data[1] << 8) | data[0];
1385 const quint32 t = ((((x & 0x03f03f) * a) >> 6) & 0x03f03f) |
1386 ((((x & 0xfc0fc0) * a) >> 6) & 0xfc0fc0);
1387
1388 qargb6666 r;
1389 r.data[0] = t & 0xff;
1390 r.data[1] = (t >> 8) & 0xff;
1391 r.data[2] = (t >> 16) & 0xff;
1392 return r;
1393 }
1394
1395 bool qargb6666::operator==(const qargb6666 &v) const
1396 {
1397 return data[0] == v.data[0]
1398 && data[1] == v.data[1]
1399 && data[2] == v.data[2];
1400 }
1401
rawValue()1402 quint32 qargb6666::rawValue() const
1403 {
1404 return (data[2] << 16) | (data[1] << 8) | data[0];
1405 }
1406
1407 class qrgb888
1408 {
1409 public:
hasAlpha()1410 Q_STATIC_INLINE_FUNCTION bool hasAlpha() { return false; }
1411
qrgb888()1412 inline qrgb888() {}
1413 inline qrgb888(quint32 v);
1414
1415 inline operator quint32() const;
1416
alpha()1417 inline quint8 alpha() const { return 0xff; }
truncedAlpha()1418 inline qrgb888 truncedAlpha() { return *this; }
alpha(quint8 a)1419 Q_STATIC_INLINE_FUNCTION quint8 alpha(quint8 a) { return a; }
ialpha(quint8 a)1420 Q_STATIC_INLINE_FUNCTION quint8 ialpha(quint8 a) { return 255 - a; }
1421
1422 inline qrgb888 byte_mul(quint8 a) const;
1423 inline qrgb888 operator+(qrgb888 v) const;
1424 inline bool operator==(qrgb888 v) const;
1425
1426 inline quint32 rawValue() const;
1427
1428 private:
1429 uchar data[3];
1430
1431 } Q_PACKED;
1432
qrgb888(quint32 v)1433 qrgb888::qrgb888(quint32 v)
1434 {
1435 data[0] = qRed(v);
1436 data[1] = qGreen(v);
1437 data[2] = qBlue(v);
1438 }
1439
quint32()1440 qrgb888::operator quint32() const
1441 {
1442 return qRgb(data[0], data[1], data[2]);
1443 }
1444
1445 qrgb888 qrgb888::operator+(qrgb888 v) const
1446 {
1447 qrgb888 t = *this;
1448 t.data[0] += v.data[0];
1449 t.data[1] += v.data[1];
1450 t.data[2] += v.data[2];
1451 return t;
1452 }
1453
byte_mul(quint8 a)1454 qrgb888 qrgb888::byte_mul(quint8 a) const
1455 {
1456 quint32 x(*this);
1457
1458 quint32 t = (x & 0xff00ff) * a;
1459 t = (t + ((t >> 8) & 0xff00ff) + 0x800080) >> 8;
1460 t &= 0xff00ff;
1461
1462 x = ((x >> 8) & 0xff00ff) * a;
1463 x = (x + ((x >> 8) & 0xff00ff) + 0x800080);
1464 x &= 0xff00ff00;
1465 x |= t;
1466 return qrgb888(x);
1467 }
1468
1469 bool qrgb888::operator==(qrgb888 v) const
1470 {
1471 return (data[0] == v.data[0] &&
1472 data[1] == v.data[1] &&
1473 data[2] == v.data[2]);
1474 }
1475
rawValue()1476 quint32 qrgb888::rawValue() const
1477 {
1478 return (data[2] << 16) | (data[1] << 8) | data[0];
1479 }
1480
1481 template <>
qt_colorConvert(quint32 color,qrgb888 dummy)1482 inline qrgb888 qt_colorConvert(quint32 color, qrgb888 dummy)
1483 {
1484 Q_UNUSED(dummy);
1485 return qrgb888(color);
1486 }
1487
1488 template <>
qt_colorConvert(qrgb888 color,quint32 dummy)1489 inline quint32 qt_colorConvert(qrgb888 color, quint32 dummy)
1490 {
1491 Q_UNUSED(dummy);
1492 return quint32(color);
1493 }
1494
1495 #ifdef QT_QWS_DEPTH_8
1496 template <>
qt_colorConvert(quint32 color,quint8 dummy)1497 inline quint8 qt_colorConvert(quint32 color, quint8 dummy)
1498 {
1499 Q_UNUSED(dummy);
1500
1501 uchar r = ((qRed(color) & 0xf8) + 0x19) / 0x33;
1502 uchar g = ((qGreen(color) &0xf8) + 0x19) / 0x33;
1503 uchar b = ((qBlue(color) &0xf8) + 0x19) / 0x33;
1504
1505 return r*6*6 + g*6 + b;
1506 }
1507
1508 template <>
qt_colorConvert(quint16 color,quint8 dummy)1509 inline quint8 qt_colorConvert(quint16 color, quint8 dummy)
1510 {
1511 Q_UNUSED(dummy);
1512
1513 uchar r = (color & 0xf800) >> (11-3);
1514 uchar g = (color & 0x07c0) >> (6-3);
1515 uchar b = (color & 0x001f) << 3;
1516
1517 uchar tr = (r + 0x19) / 0x33;
1518 uchar tg = (g + 0x19) / 0x33;
1519 uchar tb = (b + 0x19) / 0x33;
1520
1521 return tr*6*6 + tg*6 + tb;
1522 }
1523
1524 #endif // QT_QWS_DEPTH_8
1525
1526 // hw: endianess??
1527 class quint24
1528 {
1529 public:
quint24(quint32 v)1530 inline quint24(quint32 v)
1531 {
1532 data[0] = qBlue(v);
1533 data[1] = qGreen(v);
1534 data[2] = qRed(v);
1535 }
1536
quint32()1537 inline operator quint32 ()
1538 {
1539 return qRgb(data[2], data[1], data[0]);
1540 }
1541
1542 inline bool operator==(const quint24 &v) const
1543 {
1544 return data[0] == v.data[0]
1545 && data[1] == v.data[1]
1546 && data[2] == v.data[2];
1547 }
1548
1549 private:
1550 uchar data[3];
1551 } Q_PACKED;
1552
1553 template <>
qt_colorConvert(quint32 color,quint24 dummy)1554 inline quint24 qt_colorConvert(quint32 color, quint24 dummy)
1555 {
1556 Q_UNUSED(dummy);
1557 return quint24(color);
1558 }
1559
1560 // hw: endianess??
1561 class quint18
1562 {
1563 public:
quint18(quint32 v)1564 inline quint18(quint32 v)
1565 {
1566 uchar b = qBlue(v);
1567 uchar g = qGreen(v);
1568 uchar r = qRed(v);
1569 uint p = (b >> 2) | ((g >> 2) << 6) | ((r >> 2) << 12);
1570 data[0] = qBlue(p);
1571 data[1] = qGreen(p);
1572 data[2] = qRed(p);
1573 }
1574
quint32()1575 inline operator quint32 ()
1576 {
1577 const uchar r = (data[2] << 6) | ((data[1] & 0xf0) >> 2) | (data[2] & 0x3);
1578 const uchar g = (data[1] << 4) | ((data[0] & 0xc0) >> 4) | ((data[1] & 0x0f) >> 2);
1579 const uchar b = (data[0] << 2) | ((data[0] & 0x3f) >> 4);
1580 return qRgb(r, g, b);
1581 }
1582
1583 private:
1584 uchar data[3];
1585 } Q_PACKED;
1586
1587 template <>
qt_colorConvert(quint32 color,quint18 dummy)1588 inline quint18 qt_colorConvert(quint32 color, quint18 dummy)
1589 {
1590 Q_UNUSED(dummy);
1591 return quint18(color);
1592 }
1593
1594 class qrgb444;
1595
1596 class qargb4444
1597 {
1598 public:
hasAlpha()1599 Q_STATIC_INLINE_FUNCTION bool hasAlpha() { return true; }
1600
qargb4444()1601 inline qargb4444() {}
qargb4444(quint32 v)1602 inline qargb4444(quint32 v) { *this = qargb4444(quint32p(v)); }
1603 inline explicit qargb4444(quint32p v);
1604 inline qargb4444(const qrgb444 &v);
1605
1606 inline operator quint32() const;
1607 inline operator quint8() const;
1608
1609 inline qargb4444 operator+(qargb4444 v) const;
1610
alpha()1611 inline quint8 alpha() const { return ((data & 0xf000) >> 8) | ((data & 0xf000) >> 12); }
truncedAlpha()1612 inline qargb4444 truncedAlpha() { return *this; }
alpha(quint8 a)1613 Q_STATIC_INLINE_FUNCTION quint8 alpha(quint8 a) { return (a + 1) >> 4; }
ialpha(quint8 a)1614 Q_STATIC_INLINE_FUNCTION quint8 ialpha(quint8 a) { return 0x10 - alpha(a); }
1615 inline qargb4444 byte_mul(quint8 a) const;
1616
1617 inline bool operator==(const qargb4444 &v) const { return data == v.data; }
1618
rawValue()1619 inline quint16 rawValue() const { return data; }
1620
1621 private:
1622 friend class qrgb444;
1623 quint16 data;
1624
1625 } Q_PACKED;
1626
1627 class qrgb444
1628 {
1629 public:
hasAlpha()1630 Q_STATIC_INLINE_FUNCTION bool hasAlpha() { return false; }
1631
qrgb444()1632 inline qrgb444() {}
1633 inline qrgb444(quint32 v);
1634 inline explicit qrgb444(qargb4444 v);
1635
1636 inline operator quint32() const;
1637 inline operator quint8() const;
1638
1639 inline qrgb444 operator+(qrgb444 v) const;
alpha()1640 inline quint8 alpha() const { return 0xff; }
truncedAlpha()1641 inline qrgb444 truncedAlpha() { return *this; }
alpha(quint8 a)1642 Q_STATIC_INLINE_FUNCTION quint8 alpha(quint8 a) { return (a + 1) >> 4; }
ialpha(quint8 a)1643 Q_STATIC_INLINE_FUNCTION quint8 ialpha(quint8 a) { return 0x10 - alpha(a); }
1644 inline qrgb444 byte_mul(quint8 a) const;
1645
1646 inline bool operator==(const qrgb444 &v) const { return data == v.data; }
1647 inline bool operator!=(const qrgb444 &v) const { return data != v.data; }
1648
rawValue()1649 inline quint16 rawValue() const { return data; }
1650
1651 private:
1652 friend class qargb4444;
1653 quint16 data;
1654
1655 } Q_PACKED;
1656
1657
qargb4444(quint32p color)1658 qargb4444::qargb4444(quint32p color)
1659 {
1660 quint32 v = color;
1661 v &= 0xf0f0f0f0;
1662 const int a = qAlpha(v) << 8;
1663 const int r = qRed(v) << 4;
1664 const int g = qGreen(v);
1665 const int b = qBlue(v) >> 4;
1666
1667 data = a | r | g | b;
1668 }
1669
qargb4444(const qrgb444 & v)1670 qargb4444::qargb4444(const qrgb444 &v)
1671 {
1672 data = v.data | 0xf000;
1673 }
1674
quint32()1675 qargb4444::operator quint32() const
1676 {
1677 const int a = (data & 0xf000);
1678 const int r = (data & 0x0f00);
1679 const int g = (data & 0x00f0);
1680 const int b = (data & 0x000f);
1681 const int ta = (a >> 8) | (a >> 12);
1682 const int tr = (r >> 4) | (r >> 8);
1683 const int tg = g | (g >> 4);
1684 const int tb = (b << 4) | b;
1685
1686 return qRgba(tr, tg, tb, ta);
1687 }
1688
quint8()1689 qargb4444::operator quint8() const
1690 {
1691 // hw: optimize!
1692 return qt_colorConvert<quint8, quint32>(operator quint32(), 0);
1693 }
1694
1695 qargb4444 qargb4444::operator+(qargb4444 v) const
1696 {
1697 qargb4444 t;
1698 t.data = data + v.data;
1699 return t;
1700 }
1701
byte_mul(quint8 a)1702 qargb4444 qargb4444::byte_mul(quint8 a) const
1703 {
1704 quint16 t = (((data & 0xf0f0) * a) >> 4) & 0xf0f0;
1705 t |= (((data & 0x0f0f) * a) >> 4) & 0x0f0f;
1706
1707 qargb4444 result;
1708 result.data = t;
1709 return result;
1710 }
1711
qrgb444(quint32 v)1712 qrgb444::qrgb444(quint32 v)
1713 {
1714 v &= 0xf0f0f0f0;
1715 const int r = qRed(v) << 4;
1716 const int g = qGreen(v);
1717 const int b = qBlue(v) >> 4;
1718
1719 data = r | g | b;
1720 }
1721
qrgb444(qargb4444 v)1722 qrgb444::qrgb444(qargb4444 v)
1723 {
1724 data = v.data & 0x0fff;
1725 }
1726
quint32()1727 qrgb444::operator quint32() const
1728 {
1729 const int r = (data & 0x0f00);
1730 const int g = (data & 0x00f0);
1731 const int b = (data & 0x000f);
1732 const int tr = (r >> 4) | (r >> 8);
1733 const int tg = g | (g >> 4);
1734 const int tb = (b << 4) | b;
1735
1736 return qRgb(tr, tg, tb);
1737 }
1738
quint8()1739 qrgb444::operator quint8() const
1740 {
1741 // hw: optimize!
1742 return qt_colorConvert<quint8, quint32>(operator quint32(), 0);
1743 }
1744
1745 qrgb444 qrgb444::operator+(qrgb444 v) const
1746 {
1747 qrgb444 t;
1748 t.data = data + v.data;
1749 return t;
1750 }
1751
byte_mul(quint8 a)1752 qrgb444 qrgb444::byte_mul(quint8 a) const
1753 {
1754 quint16 t = (((data & 0xf0f0) * a) >> 4) & 0xf0f0;
1755 t |= (((data & 0x0f0f) * a) >> 4) & 0x0f0f;
1756
1757 qrgb444 result;
1758 result.data = t;
1759 return result;
1760 }
1761
1762 #ifdef QT_QWS_DEPTH_GENERIC
1763
1764 struct qrgb
1765 {
1766 public:
1767 static int bpp;
1768 static int len_red;
1769 static int len_green;
1770 static int len_blue;
1771 static int len_alpha;
1772 static int off_red;
1773 static int off_green;
1774 static int off_blue;
1775 static int off_alpha;
1776 } Q_PACKED;
1777
1778 template <typename SRC>
1779 Q_STATIC_TEMPLATE_FUNCTION inline quint32 qt_convertToRgb(SRC color);
1780
1781 template <>
qt_convertToRgb(quint32 color)1782 inline quint32 qt_convertToRgb(quint32 color)
1783 {
1784 const int r = qRed(color) >> (8 - qrgb::len_red);
1785 const int g = qGreen(color) >> (8 - qrgb::len_green);
1786 const int b = qBlue(color) >> (8 - qrgb::len_blue);
1787 const int a = qAlpha(color) >> (8 - qrgb::len_alpha);
1788 const quint32 v = (r << qrgb::off_red)
1789 | (g << qrgb::off_green)
1790 | (b << qrgb::off_blue)
1791 | (a << qrgb::off_alpha);
1792
1793 return v;
1794 }
1795
1796 template <>
qt_convertToRgb(quint16 color)1797 inline quint32 qt_convertToRgb(quint16 color)
1798 {
1799 return qt_convertToRgb(qt_colorConvert<quint32, quint16>(color, 0));
1800 }
1801
1802 class qrgb_generic16
1803 {
1804 public:
qrgb_generic16(quint32 color)1805 inline qrgb_generic16(quint32 color)
1806 {
1807 const int r = qRed(color) >> (8 - qrgb::len_red);
1808 const int g = qGreen(color) >> (8 - qrgb::len_green);
1809 const int b = qBlue(color) >> (8 - qrgb::len_blue);
1810 const int a = qAlpha(color) >> (8 - qrgb::len_alpha);
1811 data = (r << qrgb::off_red)
1812 | (g << qrgb::off_green)
1813 | (b << qrgb::off_blue)
1814 | (a << qrgb::off_alpha);
1815 }
1816
quint16()1817 inline operator quint16 () { return data; }
1818 inline quint32 operator<<(int shift) const { return data << shift; }
1819
1820 private:
1821 quint16 data;
1822 } Q_PACKED;
1823
1824 template <>
qt_colorConvert(quint32 color,qrgb_generic16 dummy)1825 inline qrgb_generic16 qt_colorConvert(quint32 color, qrgb_generic16 dummy)
1826 {
1827 Q_UNUSED(dummy);
1828 return qrgb_generic16(color);
1829 }
1830
1831 template <>
qt_colorConvert(quint16 color,qrgb_generic16 dummy)1832 inline qrgb_generic16 qt_colorConvert(quint16 color, qrgb_generic16 dummy)
1833 {
1834 Q_UNUSED(dummy);
1835 return qrgb_generic16(qt_colorConvert<quint32, quint16>(color, 0));
1836 }
1837
1838 #endif // QT_QWS_DEPTH_GENERIC
1839
1840 template <class T>
1841 void qt_memfill(T *dest, T value, int count);
1842
qt_memfill(quint32 * dest,quint32 color,int count)1843 template<> inline void qt_memfill(quint32 *dest, quint32 color, int count)
1844 {
1845 extern void (*qt_memfill32)(quint32 *dest, quint32 value, int count);
1846 qt_memfill32(dest, color, count);
1847 }
1848
qt_memfill(quint16 * dest,quint16 color,int count)1849 template<> inline void qt_memfill(quint16 *dest, quint16 color, int count)
1850 {
1851 extern void (*qt_memfill16)(quint16 *dest, quint16 value, int count);
1852 qt_memfill16(dest, color, count);
1853 }
1854
qt_memfill(quint8 * dest,quint8 color,int count)1855 template<> inline void qt_memfill(quint8 *dest, quint8 color, int count)
1856 {
1857 memset(dest, color, count);
1858 }
1859
1860 template <class T>
qt_memfill(T * dest,T value,int count)1861 inline void qt_memfill(T *dest, T value, int count)
1862 {
1863 if (!count)
1864 return;
1865
1866 int n = (count + 7) / 8;
1867 switch (count & 0x07)
1868 {
1869 case 0: do { *dest++ = value;
1870 case 7: *dest++ = value;
1871 case 6: *dest++ = value;
1872 case 5: *dest++ = value;
1873 case 4: *dest++ = value;
1874 case 3: *dest++ = value;
1875 case 2: *dest++ = value;
1876 case 1: *dest++ = value;
1877 } while (--n > 0);
1878 }
1879 }
1880
1881 template <class T>
qt_rectfill(T * dest,T value,int x,int y,int width,int height,int stride)1882 inline void qt_rectfill(T *dest, T value,
1883 int x, int y, int width, int height, int stride)
1884 {
1885 char *d = reinterpret_cast<char*>(dest + x) + y * stride;
1886 if (uint(stride) == (width * sizeof(T))) {
1887 qt_memfill(reinterpret_cast<T*>(d), value, width * height);
1888 } else {
1889 for (int j = 0; j < height; ++j) {
1890 dest = reinterpret_cast<T*>(d);
1891 qt_memfill(dest, value, width);
1892 d += stride;
1893 }
1894 }
1895 }
1896
1897 template <class DST, class SRC>
qt_memconvert(DST * dest,const SRC * src,int count)1898 inline void qt_memconvert(DST *dest, const SRC *src, int count)
1899 {
1900 if (sizeof(DST) == 1) {
1901 while (count) {
1902 int n = 1;
1903 const SRC color = *src++;
1904 const DST dstColor = qt_colorConvert<DST, SRC>(color, 0);
1905 while (--count && (*src == color || dstColor == qt_colorConvert<DST, SRC>(*src, 0))) {
1906 ++n;
1907 ++src;
1908 }
1909 qt_memfill(dest, dstColor, n);
1910 dest += n;
1911 }
1912 } else {
1913 /* Duff's device */
1914 int n = (count + 7) / 8;
1915 switch (count & 0x07)
1916 {
1917 case 0: do { *dest++ = qt_colorConvert<DST, SRC>(*src++, 0);
1918 case 7: *dest++ = qt_colorConvert<DST, SRC>(*src++, 0);
1919 case 6: *dest++ = qt_colorConvert<DST, SRC>(*src++, 0);
1920 case 5: *dest++ = qt_colorConvert<DST, SRC>(*src++, 0);
1921 case 4: *dest++ = qt_colorConvert<DST, SRC>(*src++, 0);
1922 case 3: *dest++ = qt_colorConvert<DST, SRC>(*src++, 0);
1923 case 2: *dest++ = qt_colorConvert<DST, SRC>(*src++, 0);
1924 case 1: *dest++ = qt_colorConvert<DST, SRC>(*src++, 0);
1925 } while (--n > 0);
1926 }
1927 }
1928 }
1929
1930 #define QT_TRIVIAL_MEMCONVERT_IMPL(T) \
1931 template <> \
1932 inline void qt_memconvert(T *dest, const T *src, int count) \
1933 { \
1934 memcpy(dest, src, count * sizeof(T)); \
1935 }
1936 QT_TRIVIAL_MEMCONVERT_IMPL(quint32)
QT_TRIVIAL_MEMCONVERT_IMPL(qrgb888)1937 QT_TRIVIAL_MEMCONVERT_IMPL(qrgb888)
1938 QT_TRIVIAL_MEMCONVERT_IMPL(qargb6666)
1939 QT_TRIVIAL_MEMCONVERT_IMPL(qrgb666)
1940 QT_TRIVIAL_MEMCONVERT_IMPL(quint16)
1941 QT_TRIVIAL_MEMCONVERT_IMPL(qrgb565)
1942 QT_TRIVIAL_MEMCONVERT_IMPL(qargb8565)
1943 QT_TRIVIAL_MEMCONVERT_IMPL(qargb8555)
1944 QT_TRIVIAL_MEMCONVERT_IMPL(qrgb555)
1945 QT_TRIVIAL_MEMCONVERT_IMPL(qargb4444)
1946 QT_TRIVIAL_MEMCONVERT_IMPL(qrgb444)
1947 #undef QT_TRIVIAL_MEMCONVERT_IMPL
1948
1949 #if Q_BYTE_ORDER == Q_LITTLE_ENDIAN
1950 template <>
1951 inline void qt_memconvert(qrgb666 *dest, const quint32 *src, int count)
1952 {
1953 if (count < 3) {
1954 switch (count) {
1955 case 2: *dest++ = qrgb666(*src++);
1956 case 1: *dest = qrgb666(*src);
1957 }
1958 return;
1959 }
1960
1961 const int align = (quintptr(dest) & 3);
1962 switch (align) {
1963 case 1: *dest++ = qrgb666(*src++); --count;
1964 case 2: *dest++ = qrgb666(*src++); --count;
1965 case 3: *dest++ = qrgb666(*src++); --count;
1966 }
1967
1968 quint32 *dest32 = reinterpret_cast<quint32*>(dest);
1969 int sourceCount = count >> 2;
1970 while (sourceCount--) {
1971 dest32[0] = ((src[1] & 0x00000c00) << 20)
1972 | ((src[1] & 0x000000fc) << 22)
1973 | ((src[0] & 0x00fc0000) >> 6)
1974 | ((src[0] & 0x0000fc00) >> 4)
1975 | ((src[0] & 0x000000fc) >> 2);
1976 dest32[1] = ((src[2] & 0x003c0000) << 10)
1977 | ((src[2] & 0x0000fc00) << 12)
1978 | ((src[2] & 0x000000fc) << 14)
1979 | ((src[1] & 0x00fc0000) >> 14)
1980 | ((src[1] & 0x0000f000) >> 12);
1981 dest32[2] = ((src[3] & 0x00fc0000) << 2)
1982 | ((src[3] & 0x0000fc00) << 4)
1983 | ((src[3] & 0x000000fc) << 6)
1984 | ((src[2] & 0x00c00000) >> 22);
1985 dest32 += 3;
1986 src += 4;
1987 }
1988
1989 dest = reinterpret_cast<qrgb666*>(dest32);
1990 switch (count & 3) {
1991 case 3: *dest++ = qrgb666(*src++);
1992 case 2: *dest++ = qrgb666(*src++);
1993 case 1: *dest = qrgb666(*src);
1994 }
1995 }
1996 #endif // Q_BYTE_ORDER
1997
1998 template <class T>
qt_rectcopy(T * dest,const T * src,int x,int y,int width,int height,int dstStride,int srcStride)1999 inline void qt_rectcopy(T *dest, const T *src,
2000 int x, int y, int width, int height,
2001 int dstStride, int srcStride)
2002 {
2003 char *d = (char*)(dest + x) + y * dstStride;
2004 const char *s = (char*)(src);
2005 for (int i = 0; i < height; ++i) {
2006 ::memcpy(d, s, width * sizeof(T));
2007 d += dstStride;
2008 s += srcStride;
2009 }
2010 }
2011
2012 template <class DST, class SRC>
qt_rectconvert(DST * dest,const SRC * src,int x,int y,int width,int height,int dstStride,int srcStride)2013 inline void qt_rectconvert(DST *dest, const SRC *src,
2014 int x, int y, int width, int height,
2015 int dstStride, int srcStride)
2016 {
2017 char *d = (char*)(dest + x) + y * dstStride;
2018 const char *s = (char*)(src);
2019 for (int i = 0; i < height; ++i) {
2020 qt_memconvert<DST,SRC>((DST*)d, (const SRC*)s, width);
2021 d += dstStride;
2022 s += srcStride;
2023 }
2024 }
2025
2026 #define QT_RECTCONVERT_TRIVIAL_IMPL(T) \
2027 template <> \
2028 inline void qt_rectconvert(T *dest, const T *src, \
2029 int x, int y, int width, int height, \
2030 int dstStride, int srcStride) \
2031 { \
2032 qt_rectcopy(dest, src, x, y, width, height, dstStride, srcStride); \
2033 }
2034 QT_RECTCONVERT_TRIVIAL_IMPL(quint32)
2035 QT_RECTCONVERT_TRIVIAL_IMPL(qrgb888)
2036 QT_RECTCONVERT_TRIVIAL_IMPL(qargb6666)
2037 QT_RECTCONVERT_TRIVIAL_IMPL(qrgb666)
2038 QT_RECTCONVERT_TRIVIAL_IMPL(qrgb565)
2039 QT_RECTCONVERT_TRIVIAL_IMPL(qargb8565)
2040 QT_RECTCONVERT_TRIVIAL_IMPL(quint16)
2041 QT_RECTCONVERT_TRIVIAL_IMPL(qargb8555)
2042 QT_RECTCONVERT_TRIVIAL_IMPL(qrgb555)
2043 QT_RECTCONVERT_TRIVIAL_IMPL(qargb4444)
2044 QT_RECTCONVERT_TRIVIAL_IMPL(qrgb444)
2045 #undef QT_RECTCONVERT_TRIVIAL_IMPL
2046
2047 #ifdef QT_QWS_DEPTH_GENERIC
2048 template <> void qt_rectconvert(qrgb *dest, const quint32 *src,
2049 int x, int y, int width, int height,
2050 int dstStride, int srcStride);
2051
2052 template <> void qt_rectconvert(qrgb *dest, const quint16 *src,
2053 int x, int y, int width, int height,
2054 int dstStride, int srcStride);
2055 #endif // QT_QWS_DEPTH_GENERIC
2056
2057 #define QT_MEMFILL_UINT(dest, length, color) \
2058 qt_memfill<quint32>(dest, color, length);
2059
2060 #define QT_MEMFILL_USHORT(dest, length, color) \
2061 qt_memfill<quint16>(dest, color, length);
2062
2063 #define QT_MEMCPY_REV_UINT(dest, src, length) \
2064 do { \
2065 /* Duff's device */ \
2066 uint *_d = (uint*)(dest) + length; \
2067 const uint *_s = (uint*)(src) + length; \
2068 int n = ((length) + 7) / 8; \
2069 switch ((length) & 0x07) \
2070 { \
2071 case 0: do { *--_d = *--_s; \
2072 case 7: *--_d = *--_s; \
2073 case 6: *--_d = *--_s; \
2074 case 5: *--_d = *--_s; \
2075 case 4: *--_d = *--_s; \
2076 case 3: *--_d = *--_s; \
2077 case 2: *--_d = *--_s; \
2078 case 1: *--_d = *--_s; \
2079 } while (--n > 0); \
2080 } \
2081 } while (0)
2082
2083 #define QT_MEMCPY_USHORT(dest, src, length) \
2084 do { \
2085 /* Duff's device */ \
2086 ushort *_d = (ushort*)(dest); \
2087 const ushort *_s = (ushort*)(src); \
2088 int n = ((length) + 7) / 8; \
2089 switch ((length) & 0x07) \
2090 { \
2091 case 0: do { *_d++ = *_s++; \
2092 case 7: *_d++ = *_s++; \
2093 case 6: *_d++ = *_s++; \
2094 case 5: *_d++ = *_s++; \
2095 case 4: *_d++ = *_s++; \
2096 case 3: *_d++ = *_s++; \
2097 case 2: *_d++ = *_s++; \
2098 case 1: *_d++ = *_s++; \
2099 } while (--n > 0); \
2100 } \
2101 } while (0)
2102
2103 #if defined(Q_CC_RVCT)
2104 # pragma push
2105 # pragma arm
2106 #endif
qt_div_255(int x)2107 Q_STATIC_INLINE_FUNCTION int qt_div_255(int x) { return (x + (x>>8) + 0x80) >> 8; }
2108 #if defined(Q_CC_RVCT)
2109 # pragma pop
2110 #endif
2111
qConvertRgb32To16(uint c)2112 inline ushort qConvertRgb32To16(uint c)
2113 {
2114 return (((c) >> 3) & 0x001f)
2115 | (((c) >> 5) & 0x07e0)
2116 | (((c) >> 8) & 0xf800);
2117 }
2118
2119 #if defined(Q_WS_QWS) || (QT_VERSION >= 0x040400)
qConvertRgb32To16x2(quint64 c)2120 inline quint32 qConvertRgb32To16x2(quint64 c)
2121 {
2122 c = (((c) >> 3) & Q_UINT64_C(0x001f0000001f))
2123 | (((c) >> 5) & Q_UINT64_C(0x07e0000007e0))
2124 | (((c) >> 8) & Q_UINT64_C(0xf8000000f800));
2125 return c | (c >> 16);
2126 }
2127 #endif
2128
qConvertRgb16To32(uint c)2129 inline QRgb qConvertRgb16To32(uint c)
2130 {
2131 return 0xff000000
2132 | ((((c) << 3) & 0xf8) | (((c) >> 2) & 0x7))
2133 | ((((c) << 5) & 0xfc00) | (((c) >> 1) & 0x300))
2134 | ((((c) << 8) & 0xf80000) | (((c) << 3) & 0x70000));
2135 }
2136
qRed565(quint16 rgb)2137 inline int qRed565(quint16 rgb) {
2138 const int r = (rgb & 0xf800);
2139 return (r >> 8) | (r >> 13);
2140 }
2141
qGreen565(quint16 rgb)2142 inline int qGreen565(quint16 rgb) {
2143 const int g = (rgb & 0x07e0);
2144 return (g >> 3) | (g >> 9);
2145 }
2146
qBlue565(quint16 rgb)2147 inline int qBlue565(quint16 rgb) {
2148 const int b = (rgb & 0x001f);
2149 return (b << 3) | (b >> 2);
2150 }
2151
2152 const uint qt_bayer_matrix[16][16] = {
2153 { 0x1, 0xc0, 0x30, 0xf0, 0xc, 0xcc, 0x3c, 0xfc,
2154 0x3, 0xc3, 0x33, 0xf3, 0xf, 0xcf, 0x3f, 0xff},
2155 { 0x80, 0x40, 0xb0, 0x70, 0x8c, 0x4c, 0xbc, 0x7c,
2156 0x83, 0x43, 0xb3, 0x73, 0x8f, 0x4f, 0xbf, 0x7f},
2157 { 0x20, 0xe0, 0x10, 0xd0, 0x2c, 0xec, 0x1c, 0xdc,
2158 0x23, 0xe3, 0x13, 0xd3, 0x2f, 0xef, 0x1f, 0xdf},
2159 { 0xa0, 0x60, 0x90, 0x50, 0xac, 0x6c, 0x9c, 0x5c,
2160 0xa3, 0x63, 0x93, 0x53, 0xaf, 0x6f, 0x9f, 0x5f},
2161 { 0x8, 0xc8, 0x38, 0xf8, 0x4, 0xc4, 0x34, 0xf4,
2162 0xb, 0xcb, 0x3b, 0xfb, 0x7, 0xc7, 0x37, 0xf7},
2163 { 0x88, 0x48, 0xb8, 0x78, 0x84, 0x44, 0xb4, 0x74,
2164 0x8b, 0x4b, 0xbb, 0x7b, 0x87, 0x47, 0xb7, 0x77},
2165 { 0x28, 0xe8, 0x18, 0xd8, 0x24, 0xe4, 0x14, 0xd4,
2166 0x2b, 0xeb, 0x1b, 0xdb, 0x27, 0xe7, 0x17, 0xd7},
2167 { 0xa8, 0x68, 0x98, 0x58, 0xa4, 0x64, 0x94, 0x54,
2168 0xab, 0x6b, 0x9b, 0x5b, 0xa7, 0x67, 0x97, 0x57},
2169 { 0x2, 0xc2, 0x32, 0xf2, 0xe, 0xce, 0x3e, 0xfe,
2170 0x1, 0xc1, 0x31, 0xf1, 0xd, 0xcd, 0x3d, 0xfd},
2171 { 0x82, 0x42, 0xb2, 0x72, 0x8e, 0x4e, 0xbe, 0x7e,
2172 0x81, 0x41, 0xb1, 0x71, 0x8d, 0x4d, 0xbd, 0x7d},
2173 { 0x22, 0xe2, 0x12, 0xd2, 0x2e, 0xee, 0x1e, 0xde,
2174 0x21, 0xe1, 0x11, 0xd1, 0x2d, 0xed, 0x1d, 0xdd},
2175 { 0xa2, 0x62, 0x92, 0x52, 0xae, 0x6e, 0x9e, 0x5e,
2176 0xa1, 0x61, 0x91, 0x51, 0xad, 0x6d, 0x9d, 0x5d},
2177 { 0xa, 0xca, 0x3a, 0xfa, 0x6, 0xc6, 0x36, 0xf6,
2178 0x9, 0xc9, 0x39, 0xf9, 0x5, 0xc5, 0x35, 0xf5},
2179 { 0x8a, 0x4a, 0xba, 0x7a, 0x86, 0x46, 0xb6, 0x76,
2180 0x89, 0x49, 0xb9, 0x79, 0x85, 0x45, 0xb5, 0x75},
2181 { 0x2a, 0xea, 0x1a, 0xda, 0x26, 0xe6, 0x16, 0xd6,
2182 0x29, 0xe9, 0x19, 0xd9, 0x25, 0xe5, 0x15, 0xd5},
2183 { 0xaa, 0x6a, 0x9a, 0x5a, 0xa6, 0x66, 0x96, 0x56,
2184 0xa9, 0x69, 0x99, 0x59, 0xa5, 0x65, 0x95, 0x55}
2185 };
2186
2187 #define ARGB_COMBINE_ALPHA(argb, alpha) \
2188 ((((argb >> 24) * alpha) >> 8) << 24) | (argb & 0x00ffffff)
2189
2190
2191 #if QT_POINTER_SIZE == 8 // 64-bit versions
2192 #define AMIX(mask) (qMin(((qint64(s)&mask) + (qint64(d)&mask)), qint64(mask)))
2193 #define MIX(mask) (qMin(((qint64(s)&mask) + (qint64(d)&mask)), qint64(mask)))
2194 #else // 32 bits
2195 // The mask for alpha can overflow over 32 bits
2196 #define AMIX(mask) quint32(qMin(((qint64(s)&mask) + (qint64(d)&mask)), qint64(mask)))
2197 #define MIX(mask) (qMin(((quint32(s)&mask) + (quint32(d)&mask)), quint32(mask)))
2198 #endif
2199
comp_func_Plus_one_pixel_const_alpha(uint d,const uint s,const uint const_alpha,const uint one_minus_const_alpha)2200 inline int comp_func_Plus_one_pixel_const_alpha(uint d, const uint s, const uint const_alpha, const uint one_minus_const_alpha)
2201 {
2202 const int result = (AMIX(AMASK) | MIX(RMASK) | MIX(GMASK) | MIX(BMASK));
2203 return INTERPOLATE_PIXEL_255(result, const_alpha, d, one_minus_const_alpha);
2204 }
2205
comp_func_Plus_one_pixel(uint d,const uint s)2206 inline int comp_func_Plus_one_pixel(uint d, const uint s)
2207 {
2208 const int result = (AMIX(AMASK) | MIX(RMASK) | MIX(GMASK) | MIX(BMASK));
2209 return result;
2210 }
2211
2212 #undef MIX
2213 #undef AMIX
2214
2215 // prototypes of all the composition functions
2216 void QT_FASTCALL comp_func_SourceOver(uint *dest, const uint *src, int length, uint const_alpha);
2217 void QT_FASTCALL comp_func_DestinationOver(uint *dest, const uint *src, int length, uint const_alpha);
2218 void QT_FASTCALL comp_func_Clear(uint *dest, const uint *, int length, uint const_alpha);
2219 void QT_FASTCALL comp_func_Source(uint *dest, const uint *src, int length, uint const_alpha);
2220 void QT_FASTCALL comp_func_Destination(uint *, const uint *, int, uint);
2221 void QT_FASTCALL comp_func_SourceIn(uint *dest, const uint *src, int length, uint const_alpha);
2222 void QT_FASTCALL comp_func_DestinationIn(uint *dest, const uint *src, int length, uint const_alpha);
2223 void QT_FASTCALL comp_func_SourceOut(uint *dest, const uint *src, int length, uint const_alpha);
2224 void QT_FASTCALL comp_func_DestinationOut(uint *dest, const uint *src, int length, uint const_alpha);
2225 void QT_FASTCALL comp_func_SourceAtop(uint *dest, const uint *src, int length, uint const_alpha);
2226 void QT_FASTCALL comp_func_DestinationAtop(uint *dest, const uint *src, int length, uint const_alpha);
2227 void QT_FASTCALL comp_func_XOR(uint *dest, const uint *src, int length, uint const_alpha);
2228 void QT_FASTCALL comp_func_Plus(uint *dest, const uint *src, int length, uint const_alpha);
2229 void QT_FASTCALL comp_func_Multiply(uint *dest, const uint *src, int length, uint const_alpha);
2230 void QT_FASTCALL comp_func_Screen(uint *dest, const uint *src, int length, uint const_alpha);
2231 void QT_FASTCALL comp_func_Overlay(uint *dest, const uint *src, int length, uint const_alpha);
2232 void QT_FASTCALL comp_func_Darken(uint *dest, const uint *src, int length, uint const_alpha);
2233 void QT_FASTCALL comp_func_Lighten(uint *dest, const uint *src, int length, uint const_alpha);
2234 void QT_FASTCALL comp_func_ColorDodge(uint *dest, const uint *src, int length, uint const_alpha);
2235 void QT_FASTCALL comp_func_ColorBurn(uint *dest, const uint *src, int length, uint const_alpha);
2236 void QT_FASTCALL comp_func_HardLight(uint *dest, const uint *src, int length, uint const_alpha);
2237 void QT_FASTCALL comp_func_SoftLight(uint *dest, const uint *src, int length, uint const_alpha);
2238 void QT_FASTCALL comp_func_Difference(uint *dest, const uint *src, int length, uint const_alpha);
2239 void QT_FASTCALL comp_func_Exclusion(uint *dest, const uint *src, int length, uint const_alpha);
2240 void QT_FASTCALL rasterop_SourceOrDestination(uint *dest, const uint *src, int length, uint const_alpha);
2241 void QT_FASTCALL rasterop_SourceAndDestination(uint *dest, const uint *src, int length, uint const_alpha);
2242 void QT_FASTCALL rasterop_SourceXorDestination(uint *dest, const uint *src, int length, uint const_alpha);
2243 void QT_FASTCALL rasterop_NotSourceAndNotDestination(uint *dest, const uint *src, int length, uint const_alpha);
2244 void QT_FASTCALL rasterop_NotSourceOrNotDestination(uint *dest, const uint *src, int length, uint const_alpha);
2245 void QT_FASTCALL rasterop_NotSourceXorDestination(uint *dest, const uint *src, int length, uint const_alpha);
2246 void QT_FASTCALL rasterop_NotSource(uint *dest, const uint *src, int length, uint const_alpha);
2247 void QT_FASTCALL rasterop_NotSourceAndDestination(uint *dest, const uint *src, int length, uint const_alpha);
2248 void QT_FASTCALL rasterop_SourceAndNotDestination(uint *dest, const uint *src, int length, uint const_alpha);
2249
2250 // prototypes of all the solid composition functions
2251 void QT_FASTCALL comp_func_solid_SourceOver(uint *dest, int length, uint color, uint const_alpha);
2252 void QT_FASTCALL comp_func_solid_DestinationOver(uint *dest, int length, uint color, uint const_alpha);
2253 void QT_FASTCALL comp_func_solid_Clear(uint *dest, int length, uint color, uint const_alpha);
2254 void QT_FASTCALL comp_func_solid_Source(uint *dest, int length, uint color, uint const_alpha);
2255 void QT_FASTCALL comp_func_solid_Destination(uint *dest, int length, uint color, uint const_alpha);
2256 void QT_FASTCALL comp_func_solid_SourceIn(uint *dest, int length, uint color, uint const_alpha);
2257 void QT_FASTCALL comp_func_solid_DestinationIn(uint *dest, int length, uint color, uint const_alpha);
2258 void QT_FASTCALL comp_func_solid_SourceOut(uint *dest, int length, uint color, uint const_alpha);
2259 void QT_FASTCALL comp_func_solid_DestinationOut(uint *dest, int length, uint color, uint const_alpha);
2260 void QT_FASTCALL comp_func_solid_SourceAtop(uint *dest, int length, uint color, uint const_alpha);
2261 void QT_FASTCALL comp_func_solid_DestinationAtop(uint *dest, int length, uint color, uint const_alpha);
2262 void QT_FASTCALL comp_func_solid_XOR(uint *dest, int length, uint color, uint const_alpha);
2263 void QT_FASTCALL comp_func_solid_Plus(uint *dest, int length, uint color, uint const_alpha);
2264 void QT_FASTCALL comp_func_solid_Multiply(uint *dest, int length, uint color, uint const_alpha);
2265 void QT_FASTCALL comp_func_solid_Screen(uint *dest, int length, uint color, uint const_alpha);
2266 void QT_FASTCALL comp_func_solid_Overlay(uint *dest, int length, uint color, uint const_alpha);
2267 void QT_FASTCALL comp_func_solid_Darken(uint *dest, int length, uint color, uint const_alpha);
2268 void QT_FASTCALL comp_func_solid_Lighten(uint *dest, int length, uint color, uint const_alpha);
2269 void QT_FASTCALL comp_func_solid_ColorDodge(uint *dest, int length, uint color, uint const_alpha);
2270 void QT_FASTCALL comp_func_solid_ColorBurn(uint *dest, int length, uint color, uint const_alpha);
2271 void QT_FASTCALL comp_func_solid_HardLight(uint *dest, int length, uint color, uint const_alpha);
2272 void QT_FASTCALL comp_func_solid_SoftLight(uint *dest, int length, uint color, uint const_alpha);
2273 void QT_FASTCALL comp_func_solid_Difference(uint *dest, int length, uint color, uint const_alpha);
2274 void QT_FASTCALL comp_func_solid_Exclusion(uint *dest, int length, uint color, uint const_alpha);
2275 void QT_FASTCALL rasterop_solid_SourceOrDestination(uint *dest, int length, uint color, uint const_alpha);
2276 void QT_FASTCALL rasterop_solid_SourceAndDestination(uint *dest, int length, uint color, uint const_alpha);
2277 void QT_FASTCALL rasterop_solid_SourceXorDestination(uint *dest, int length, uint color, uint const_alpha);
2278 void QT_FASTCALL rasterop_solid_NotSourceAndNotDestination(uint *dest, int length, uint color, uint const_alpha);
2279 void QT_FASTCALL rasterop_solid_NotSourceOrNotDestination(uint *dest, int length, uint color, uint const_alpha);
2280 void QT_FASTCALL rasterop_solid_NotSourceXorDestination(uint *dest, int length, uint color, uint const_alpha);
2281 void QT_FASTCALL rasterop_solid_NotSource(uint *dest, int length, uint color, uint const_alpha);
2282 void QT_FASTCALL rasterop_solid_NotSourceAndDestination(uint *dest, int length, uint color, uint const_alpha);
2283 void QT_FASTCALL rasterop_solid_SourceAndNotDestination(uint *dest, int length, uint color, uint const_alpha);
2284
2285 QT_END_NAMESPACE
2286
2287 #endif // QDRAWHELPER_P_H
2288