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39
40#include <private/qdrawhelper_p.h>
41#include <private/qdrawingprimitive_sse2_p.h>
42#include <private/qpaintengine_raster_p.h>
43
44#if defined(QT_COMPILER_SUPPORTS_SSE4_1)
45
46QT_BEGIN_NAMESPACE
47
48#ifndef __AVX2__
49template<bool RGBA>
50static void convertARGBToARGB32PM_sse4(uint *buffer, const uint *src, int count)
51{
52 int i = 0;
53 const __m128i alphaMask = _mm_set1_epi32(0xff000000);
54 const __m128i rgbaMask = _mm_setr_epi8(2, 1, 0, 3, 6, 5, 4, 7, 10, 9, 8, 11, 14, 13, 12, 15);
55 const __m128i shuffleMask = _mm_setr_epi8(6, 7, 6, 7, 6, 7, 6, 7, 14, 15, 14, 15, 14, 15, 14, 15);
56 const __m128i half = _mm_set1_epi16(0x0080);
57 const __m128i zero = _mm_setzero_si128();
58
59 for (; i < count - 3; i += 4) {
60 __m128i srcVector = _mm_loadu_si128((const __m128i *)&src[i]);
61 if (!_mm_testz_si128(srcVector, alphaMask)) {
62 if (!_mm_testc_si128(srcVector, alphaMask)) {
63 if (RGBA)
64 srcVector = _mm_shuffle_epi8(srcVector, rgbaMask);
65 __m128i src1 = _mm_unpacklo_epi8(srcVector, zero);
66 __m128i src2 = _mm_unpackhi_epi8(srcVector, zero);
67 __m128i alpha1 = _mm_shuffle_epi8(src1, shuffleMask);
68 __m128i alpha2 = _mm_shuffle_epi8(src2, shuffleMask);
69 src1 = _mm_mullo_epi16(src1, alpha1);
70 src2 = _mm_mullo_epi16(src2, alpha2);
71 src1 = _mm_add_epi16(src1, _mm_srli_epi16(src1, 8));
72 src2 = _mm_add_epi16(src2, _mm_srli_epi16(src2, 8));
73 src1 = _mm_add_epi16(src1, half);
74 src2 = _mm_add_epi16(src2, half);
75 src1 = _mm_srli_epi16(src1, 8);
76 src2 = _mm_srli_epi16(src2, 8);
77 src1 = _mm_blend_epi16(src1, alpha1, 0x88);
78 src2 = _mm_blend_epi16(src2, alpha2, 0x88);
79 srcVector = _mm_packus_epi16(src1, src2);
80 _mm_storeu_si128((__m128i *)&buffer[i], srcVector);
81 } else {
82 if (RGBA)
83 _mm_storeu_si128((__m128i *)&buffer[i], _mm_shuffle_epi8(srcVector, rgbaMask));
84 else if (buffer != src)
85 _mm_storeu_si128((__m128i *)&buffer[i], srcVector);
86 }
87 } else {
88 _mm_storeu_si128((__m128i *)&buffer[i], zero);
89 }
90 }
91
92 SIMD_EPILOGUE(i, count, 3) {
93 uint v = qPremultiply(src[i]);
94 buffer[i] = RGBA ? RGBA2ARGB(v) : v;
95 }
96}
97
98template<bool RGBA>
99static void convertARGBToRGBA64PM_sse4(QRgba64 *buffer, const uint *src, int count)
100{
101 int i = 0;
102 const __m128i alphaMask = _mm_set1_epi32(0xff000000);
103 const __m128i rgbaMask = _mm_setr_epi8(2, 1, 0, 3, 6, 5, 4, 7, 10, 9, 8, 11, 14, 13, 12, 15);
104 const __m128i shuffleMask = _mm_setr_epi8(6, 7, 6, 7, 6, 7, 6, 7, 14, 15, 14, 15, 14, 15, 14, 15);
105 const __m128i zero = _mm_setzero_si128();
106
107 for (; i < count - 3; i += 4) {
108 __m128i srcVector = _mm_loadu_si128((const __m128i *)&src[i]);
109 if (!_mm_testz_si128(srcVector, alphaMask)) {
110 bool cf = _mm_testc_si128(srcVector, alphaMask);
111
112 if (!RGBA)
113 srcVector = _mm_shuffle_epi8(srcVector, rgbaMask);
114 const __m128i src1 = _mm_unpacklo_epi8(srcVector, srcVector);
115 const __m128i src2 = _mm_unpackhi_epi8(srcVector, srcVector);
116 if (!cf) {
117 __m128i alpha1 = _mm_shuffle_epi8(src1, shuffleMask);
118 __m128i alpha2 = _mm_shuffle_epi8(src2, shuffleMask);
119 __m128i dst1 = _mm_mulhi_epu16(src1, alpha1);
120 __m128i dst2 = _mm_mulhi_epu16(src2, alpha2);
121 // Map 0->0xfffe to 0->0xffff
122 dst1 = _mm_add_epi16(dst1, _mm_srli_epi16(dst1, 15));
123 dst2 = _mm_add_epi16(dst2, _mm_srli_epi16(dst2, 15));
124 // correct alpha value:
125 dst1 = _mm_blend_epi16(dst1, src1, 0x88);
126 dst2 = _mm_blend_epi16(dst2, src2, 0x88);
127 _mm_storeu_si128((__m128i *)&buffer[i], dst1);
128 _mm_storeu_si128((__m128i *)&buffer[i + 2], dst2);
129 } else {
130 _mm_storeu_si128((__m128i *)&buffer[i], src1);
131 _mm_storeu_si128((__m128i *)&buffer[i + 2], src2);
132 }
133 } else {
134 _mm_storeu_si128((__m128i *)&buffer[i], zero);
135 _mm_storeu_si128((__m128i *)&buffer[i + 2], zero);
136 }
137 }
138
139 SIMD_EPILOGUE(i, count, 3) {
140 const uint s = RGBA ? RGBA2ARGB(src[i]) : src[i];
141 buffer[i] = QRgba64::fromArgb32(s).premultiplied();
142 }
143}
144#endif // __AVX2__
145
146static inline __m128 Q_DECL_VECTORCALL reciprocal_mul_ps(__m128 a, float mul)
147{
148 __m128 ia = _mm_rcp_ps(a); // Approximate 1/a
149 // Improve precision of ia using Newton-Raphson
150 ia = _mm_sub_ps(_mm_add_ps(ia, ia), _mm_mul_ps(ia, _mm_mul_ps(ia, a)));
151 ia = _mm_mul_ps(ia, _mm_set1_ps(mul));
152 return ia;
153}
154
155template<bool RGBA, bool RGBx>
156static inline void convertARGBFromARGB32PM_sse4(uint *buffer, const uint *src, int count)
157{
158 int i = 0;
159 if ((_MM_GET_EXCEPTION_MASK() & _MM_MASK_INVALID) == 0) {
160 for (; i < count; ++i) {
161 uint v = qUnpremultiply(src[i]);
162 if (RGBx)
163 v = 0xff000000 | v;
164 if (RGBA)
165 v = ARGB2RGBA(v);
166 buffer[i] = v;
167 }
168 return;
169 }
170 const __m128i alphaMask = _mm_set1_epi32(0xff000000);
171 const __m128i rgbaMask = _mm_setr_epi8(2, 1, 0, 3, 6, 5, 4, 7, 10, 9, 8, 11, 14, 13, 12, 15);
172 const __m128i zero = _mm_setzero_si128();
173
174 for (; i < count - 3; i += 4) {
175 __m128i srcVector = _mm_loadu_si128((const __m128i *)&src[i]);
176 if (!_mm_testz_si128(srcVector, alphaMask)) {
177 if (!_mm_testc_si128(srcVector, alphaMask)) {
178 __m128i srcVectorAlpha = _mm_srli_epi32(srcVector, 24);
179 if (RGBA)
180 srcVector = _mm_shuffle_epi8(srcVector, rgbaMask);
181 const __m128 a = _mm_cvtepi32_ps(srcVectorAlpha);
182 const __m128 ia = reciprocal_mul_ps(a, 255.0f);
183 __m128i src1 = _mm_unpacklo_epi8(srcVector, zero);
184 __m128i src3 = _mm_unpackhi_epi8(srcVector, zero);
185 __m128i src2 = _mm_unpackhi_epi16(src1, zero);
186 __m128i src4 = _mm_unpackhi_epi16(src3, zero);
187 src1 = _mm_unpacklo_epi16(src1, zero);
188 src3 = _mm_unpacklo_epi16(src3, zero);
189 __m128 ia1 = _mm_shuffle_ps(ia, ia, _MM_SHUFFLE(0, 0, 0, 0));
190 __m128 ia2 = _mm_shuffle_ps(ia, ia, _MM_SHUFFLE(1, 1, 1, 1));
191 __m128 ia3 = _mm_shuffle_ps(ia, ia, _MM_SHUFFLE(2, 2, 2, 2));
192 __m128 ia4 = _mm_shuffle_ps(ia, ia, _MM_SHUFFLE(3, 3, 3, 3));
193 src1 = _mm_cvtps_epi32(_mm_mul_ps(_mm_cvtepi32_ps(src1), ia1));
194 src2 = _mm_cvtps_epi32(_mm_mul_ps(_mm_cvtepi32_ps(src2), ia2));
195 src3 = _mm_cvtps_epi32(_mm_mul_ps(_mm_cvtepi32_ps(src3), ia3));
196 src4 = _mm_cvtps_epi32(_mm_mul_ps(_mm_cvtepi32_ps(src4), ia4));
197 src1 = _mm_packus_epi32(src1, src2);
198 src3 = _mm_packus_epi32(src3, src4);
199 src1 = _mm_packus_epi16(src1, src3);
200 // Handle potential alpha == 0 values:
201 __m128i srcVectorAlphaMask = _mm_cmpeq_epi32(srcVectorAlpha, zero);
202 src1 = _mm_andnot_si128(srcVectorAlphaMask, src1);
203 // Fixup alpha values:
204 if (RGBx)
205 srcVector = _mm_or_si128(src1, alphaMask);
206 else
207 srcVector = _mm_blendv_epi8(src1, srcVector, alphaMask);
208 _mm_storeu_si128((__m128i *)&buffer[i], srcVector);
209 } else {
210 if (RGBA)
211 _mm_storeu_si128((__m128i *)&buffer[i], _mm_shuffle_epi8(srcVector, rgbaMask));
212 else if (buffer != src)
213 _mm_storeu_si128((__m128i *)&buffer[i], srcVector);
214 }
215 } else {
216 if (RGBx)
217 _mm_storeu_si128((__m128i *)&buffer[i], alphaMask);
218 else
219 _mm_storeu_si128((__m128i *)&buffer[i], zero);
220 }
221 }
222
223 SIMD_EPILOGUE(i, count, 3) {
224 uint v = qUnpremultiply_sse4(src[i]);
225 if (RGBx)
226 v = 0xff000000 | v;
227 if (RGBA)
228 v = ARGB2RGBA(v);
229 buffer[i] = v;
230 }
231}
232
233template<bool RGBA>
234static inline void convertARGBFromRGBA64PM_sse4(uint *buffer, const QRgba64 *src, int count)
235{
236 int i = 0;
237 if ((_MM_GET_EXCEPTION_MASK() & _MM_MASK_INVALID) == 0) {
238 for (; i < count; ++i) {
239 const QRgba64 v = src[i].unpremultiplied();
240 buffer[i] = RGBA ? toRgba8888(v) : toArgb32(v);
241 }
242 return;
243 }
244 const __m128i alphaMask = _mm_set1_epi64x(qint64(Q_UINT64_C(0xffff) << 48));
245 const __m128i alphaMask32 = _mm_set1_epi32(0xff000000);
246 const __m128i rgbaMask = _mm_setr_epi8(2, 1, 0, 3, 6, 5, 4, 7, 10, 9, 8, 11, 14, 13, 12, 15);
247 const __m128i zero = _mm_setzero_si128();
248
249 for (; i < count - 3; i += 4) {
250 __m128i srcVector1 = _mm_loadu_si128((const __m128i *)&src[i]);
251 __m128i srcVector2 = _mm_loadu_si128((const __m128i *)&src[i + 2]);
252 bool transparent1 = _mm_testz_si128(srcVector1, alphaMask);
253 bool opaque1 = _mm_testc_si128(srcVector1, alphaMask);
254 bool transparent2 = _mm_testz_si128(srcVector2, alphaMask);
255 bool opaque2 = _mm_testc_si128(srcVector2, alphaMask);
256
257 if (!(transparent1 && transparent2)) {
258 if (!(opaque1 && opaque2)) {
259 __m128i srcVector1Alpha = _mm_srli_epi64(srcVector1, 48);
260 __m128i srcVector2Alpha = _mm_srli_epi64(srcVector2, 48);
261 __m128i srcVectorAlpha = _mm_packus_epi32(srcVector1Alpha, srcVector2Alpha);
262 const __m128 a = _mm_cvtepi32_ps(srcVectorAlpha);
263 // Convert srcVectorAlpha to final 8-bit alpha channel
264 srcVectorAlpha = _mm_add_epi32(srcVectorAlpha, _mm_set1_epi32(128));
265 srcVectorAlpha = _mm_sub_epi32(srcVectorAlpha, _mm_srli_epi32(srcVectorAlpha, 8));
266 srcVectorAlpha = _mm_srli_epi32(srcVectorAlpha, 8);
267 srcVectorAlpha = _mm_slli_epi32(srcVectorAlpha, 24);
268 const __m128 ia = reciprocal_mul_ps(a, 255.0f);
269 __m128i src1 = _mm_unpacklo_epi16(srcVector1, zero);
270 __m128i src2 = _mm_unpackhi_epi16(srcVector1, zero);
271 __m128i src3 = _mm_unpacklo_epi16(srcVector2, zero);
272 __m128i src4 = _mm_unpackhi_epi16(srcVector2, zero);
273 __m128 ia1 = _mm_shuffle_ps(ia, ia, _MM_SHUFFLE(0, 0, 0, 0));
274 __m128 ia2 = _mm_shuffle_ps(ia, ia, _MM_SHUFFLE(1, 1, 1, 1));
275 __m128 ia3 = _mm_shuffle_ps(ia, ia, _MM_SHUFFLE(2, 2, 2, 2));
276 __m128 ia4 = _mm_shuffle_ps(ia, ia, _MM_SHUFFLE(3, 3, 3, 3));
277 src1 = _mm_cvtps_epi32(_mm_mul_ps(_mm_cvtepi32_ps(src1), ia1));
278 src2 = _mm_cvtps_epi32(_mm_mul_ps(_mm_cvtepi32_ps(src2), ia2));
279 src3 = _mm_cvtps_epi32(_mm_mul_ps(_mm_cvtepi32_ps(src3), ia3));
280 src4 = _mm_cvtps_epi32(_mm_mul_ps(_mm_cvtepi32_ps(src4), ia4));
281 src1 = _mm_packus_epi32(src1, src2);
282 src3 = _mm_packus_epi32(src3, src4);
283 // Handle potential alpha == 0 values:
284 __m128i srcVector1AlphaMask = _mm_cmpeq_epi64(srcVector1Alpha, zero);
285 __m128i srcVector2AlphaMask = _mm_cmpeq_epi64(srcVector2Alpha, zero);
286 src1 = _mm_andnot_si128(srcVector1AlphaMask, src1);
287 src3 = _mm_andnot_si128(srcVector2AlphaMask, src3);
288 src1 = _mm_packus_epi16(src1, src3);
289 // Fixup alpha values:
290 src1 = _mm_blendv_epi8(src1, srcVectorAlpha, alphaMask32);
291 // Fix RGB order
292 if (!RGBA)
293 src1 = _mm_shuffle_epi8(src1, rgbaMask);
294 _mm_storeu_si128((__m128i *)&buffer[i], src1);
295 } else {
296 __m128i src1 = _mm_unpacklo_epi16(srcVector1, zero);
297 __m128i src2 = _mm_unpackhi_epi16(srcVector1, zero);
298 __m128i src3 = _mm_unpacklo_epi16(srcVector2, zero);
299 __m128i src4 = _mm_unpackhi_epi16(srcVector2, zero);
300 src1 = _mm_add_epi32(src1, _mm_set1_epi32(128));
301 src2 = _mm_add_epi32(src2, _mm_set1_epi32(128));
302 src3 = _mm_add_epi32(src3, _mm_set1_epi32(128));
303 src4 = _mm_add_epi32(src4, _mm_set1_epi32(128));
304 src1 = _mm_sub_epi32(src1, _mm_srli_epi32(src1, 8));
305 src2 = _mm_sub_epi32(src2, _mm_srli_epi32(src2, 8));
306 src3 = _mm_sub_epi32(src3, _mm_srli_epi32(src3, 8));
307 src4 = _mm_sub_epi32(src4, _mm_srli_epi32(src4, 8));
308 src1 = _mm_srli_epi32(src1, 8);
309 src2 = _mm_srli_epi32(src2, 8);
310 src3 = _mm_srli_epi32(src3, 8);
311 src4 = _mm_srli_epi32(src4, 8);
312 src1 = _mm_packus_epi32(src1, src2);
313 src3 = _mm_packus_epi32(src3, src4);
314 src1 = _mm_packus_epi16(src1, src3);
315 if (!RGBA)
316 src1 = _mm_shuffle_epi8(src1, rgbaMask);
317 _mm_storeu_si128((__m128i *)&buffer[i], src1);
318 }
319 } else {
320 _mm_storeu_si128((__m128i *)&buffer[i], zero);
321 }
322 }
323
324 SIMD_EPILOGUE(i, count, 3) {
325 buffer[i] = qConvertRgba64ToRgb32_sse4<RGBA ? PixelOrderRGB : PixelOrderBGR>(src[i]);
326 }
327}
328
329#ifndef __AVX2__
330void QT_FASTCALL convertARGB32ToARGB32PM_sse4(uint *buffer, int count, const QVector<QRgb> *)
331{
332 convertARGBToARGB32PM_sse4<false>(buffer, buffer, count);
333}
334
335void QT_FASTCALL convertRGBA8888ToARGB32PM_sse4(uint *buffer, int count, const QVector<QRgb> *)
336{
337 convertARGBToARGB32PM_sse4<true>(buffer, buffer, count);
338}
339
340const QRgba64 * QT_FASTCALL convertARGB32ToRGBA64PM_sse4(QRgba64 *buffer, const uint *src, int count,
341 const QVector<QRgb> *, QDitherInfo *)
342{
343 convertARGBToRGBA64PM_sse4<false>(buffer, src, count);
344 return buffer;
345}
346
347const QRgba64 * QT_FASTCALL convertRGBA8888ToRGBA64PM_sse4(QRgba64 *buffer, const uint *src, int count,
348 const QVector<QRgb> *, QDitherInfo *)
349{
350 convertARGBToRGBA64PM_sse4<true>(buffer, src, count);
351 return buffer;
352}
353
354const uint *QT_FASTCALL fetchARGB32ToARGB32PM_sse4(uint *buffer, const uchar *src, int index, int count,
355 const QVector<QRgb> *, QDitherInfo *)
356{
357 convertARGBToARGB32PM_sse4<false>(buffer, reinterpret_cast<const uint *>(src) + index, count);
358 return buffer;
359}
360
361const uint *QT_FASTCALL fetchRGBA8888ToARGB32PM_sse4(uint *buffer, const uchar *src, int index, int count,
362 const QVector<QRgb> *, QDitherInfo *)
363{
364 convertARGBToARGB32PM_sse4<true>(buffer, reinterpret_cast<const uint *>(src) + index, count);
365 return buffer;
366}
367
368const QRgba64 *QT_FASTCALL fetchARGB32ToRGBA64PM_sse4(QRgba64 *buffer, const uchar *src, int index, int count,
369 const QVector<QRgb> *, QDitherInfo *)
370{
371 convertARGBToRGBA64PM_sse4<false>(buffer, reinterpret_cast<const uint *>(src) + index, count);
372 return buffer;
373}
374
375const QRgba64 *QT_FASTCALL fetchRGBA8888ToRGBA64PM_sse4(QRgba64 *buffer, const uchar *src, int index, int count,
376 const QVector<QRgb> *, QDitherInfo *)
377{
378 convertARGBToRGBA64PM_sse4<true>(buffer, reinterpret_cast<const uint *>(src) + index, count);
379 return buffer;
380}
381#endif // __AVX2__
382
383void QT_FASTCALL storeRGB32FromARGB32PM_sse4(uchar *dest, const uint *src, int index, int count,
384 const QVector<QRgb> *, QDitherInfo *)
385{
386 uint *d = reinterpret_cast<uint *>(dest) + index;
387 convertARGBFromARGB32PM_sse4<false,true>(d, src, count);
388}
389
390void QT_FASTCALL storeARGB32FromARGB32PM_sse4(uchar *dest, const uint *src, int index, int count,
391 const QVector<QRgb> *, QDitherInfo *)
392{
393 uint *d = reinterpret_cast<uint *>(dest) + index;
394 convertARGBFromARGB32PM_sse4<false,false>(d, src, count);
395}
396
397void QT_FASTCALL storeRGBA8888FromARGB32PM_sse4(uchar *dest, const uint *src, int index, int count,
398 const QVector<QRgb> *, QDitherInfo *)
399{
400 uint *d = reinterpret_cast<uint *>(dest) + index;
401 convertARGBFromARGB32PM_sse4<true,false>(d, src, count);
402}
403
404void QT_FASTCALL storeRGBXFromARGB32PM_sse4(uchar *dest, const uint *src, int index, int count,
405 const QVector<QRgb> *, QDitherInfo *)
406{
407 uint *d = reinterpret_cast<uint *>(dest) + index;
408 convertARGBFromARGB32PM_sse4<true,true>(d, src, count);
409}
410
411template<QtPixelOrder PixelOrder>
412void QT_FASTCALL storeA2RGB30PMFromARGB32PM_sse4(uchar *dest, const uint *src, int index, int count,
413 const QVector<QRgb> *, QDitherInfo *)
414{
415 uint *d = reinterpret_cast<uint *>(dest) + index;
416 for (int i = 0; i < count; ++i)
417 d[i] = qConvertArgb32ToA2rgb30_sse4<PixelOrder>(src[i]);
418}
419
420#if QT_CONFIG(raster_64bit)
421void QT_FASTCALL destStore64ARGB32_sse4(QRasterBuffer *rasterBuffer, int x, int y, const QRgba64 *buffer, int length)
422{
423 uint *dest = (uint*)rasterBuffer->scanLine(y) + x;
424 convertARGBFromRGBA64PM_sse4<false>(dest, buffer, length);
425}
426
427void QT_FASTCALL destStore64RGBA8888_sse4(QRasterBuffer *rasterBuffer, int x, int y, const QRgba64 *buffer, int length)
428{
429 uint *dest = (uint*)rasterBuffer->scanLine(y) + x;
430 convertARGBFromRGBA64PM_sse4<true>(dest, buffer, length);
431}
432#endif
433
434void QT_FASTCALL storeARGB32FromRGBA64PM_sse4(uchar *dest, const QRgba64 *src, int index, int count,
435 const QVector<QRgb> *, QDitherInfo *)
436{
437 uint *d = (uint*)dest + index;
438 convertARGBFromRGBA64PM_sse4<false>(d, src, count);
439}
440
441void QT_FASTCALL storeRGBA8888FromRGBA64PM_sse4(uchar *dest, const QRgba64 *src, int index, int count,
442 const QVector<QRgb> *, QDitherInfo *)
443{
444 uint *d = (uint*)dest + index;
445 convertARGBFromRGBA64PM_sse4<true>(d, src, count);
446}
447
448template
449void QT_FASTCALL storeA2RGB30PMFromARGB32PM_sse4<PixelOrderBGR>(uchar *dest, const uint *src, int index, int count,
450 const QVector<QRgb> *, QDitherInfo *);
451template
452void QT_FASTCALL storeA2RGB30PMFromARGB32PM_sse4<PixelOrderRGB>(uchar *dest, const uint *src, int index, int count,
453 const QVector<QRgb> *, QDitherInfo *);
454
455QT_END_NAMESPACE
456
457#endif
458