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| 1 // Copyright 2014 PDFium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| 6 |
| 7 #include "../../../include/fxge/fx_ge.h" |
| 8 #include "../../../include/fxcodec/fx_codec.h" |
| 9 #include "fx_skia.h" |
| 10 #include "fx_skia_blitter.h" |
| 11 |
| 12 void CFX_SkiaRenderer::blitAntiH(int x, int y, const SkAlpha antialias[], const
int16_t runs[]) |
| 13 { |
| 14 FXSYS_assert(m_Alpha); |
| 15 if (m_pOriDevice == NULL && composite_span == NULL) { |
| 16 return; |
| 17 } |
| 18 if (y < m_ClipBox.top || y >= m_ClipBox.bottom) { |
| 19 return; |
| 20 } |
| 21 while (1) { |
| 22 int width = runs[0]; |
| 23 SkASSERT(width >= 0); |
| 24 if (width <= 0) { |
| 25 return; |
| 26 } |
| 27 unsigned aa = antialias[0]; |
| 28 if (aa) { |
| 29 (this->*composite_span)(m_pDestScan, m_pOriScan, 0, x, width, y, aa,
m_ClipBox.top, m_ClipBox.left, m_ClipBox.right, m_pClipScan, m_pDestExtraAlphaS
can); |
| 30 } |
| 31 runs += width; |
| 32 antialias += width; |
| 33 x += width; |
| 34 } |
| 35 } |
| 36 |
| 37 void CFX_SkiaRenderer::blitH(int x, int y, int width) |
| 38 { |
| 39 FXSYS_assert(m_Alpha && width); |
| 40 if (y < m_ClipBox.top || y >= m_ClipBox.bottom) { |
| 41 return; |
| 42 } |
| 43 (this->*composite_span)(m_pDestScan, m_pOriScan, 0, x, width, y, 255, m_Clip
Box.top, m_ClipBox.left, m_ClipBox.right, m_pClipScan, m_pDestExtraAlphaScan); |
| 44 } |
| 45 |
| 46 void CFX_SkiaRenderer::blitV(int x, int y, int height, SkAlpha alpha) |
| 47 { |
| 48 FXSYS_assert(m_Alpha && alpha); |
| 49 if (alpha == 255) { |
| 50 this->blitRect(x, y, 1, height); |
| 51 } else { |
| 52 int16_t runs[2]; |
| 53 runs[0] = 1; |
| 54 runs[1] = 0; |
| 55 while (--height >= 0) { |
| 56 if (y >= m_ClipBox.bottom) { |
| 57 return; |
| 58 } |
| 59 this->blitAntiH(x, y ++, &alpha, runs); |
| 60 } |
| 61 } |
| 62 } |
| 63 void CFX_SkiaRenderer::blitRect(int x, int y, int width, int height) |
| 64 { |
| 65 FXSYS_assert(m_Alpha && width); |
| 66 while (--height >= 0) { |
| 67 if (y >= m_ClipBox.bottom) { |
| 68 return; |
| 69 } |
| 70 blitH(x, y ++, width); |
| 71 } |
| 72 } |
| 73 |
| 74 void CFX_SkiaRenderer::blitAntiRect(int x, int y, int width, int height, |
| 75 SkAlpha leftAlpha, SkAlpha rightAlpha) |
| 76 { |
| 77 blitV(x++, y, height, leftAlpha); |
| 78 if (width > 0) { |
| 79 blitRect(x, y, width, height); |
| 80 x += width; |
| 81 } |
| 82 blitV(x, y, height, rightAlpha); |
| 83 } |
| 84 |
| 85 void CFX_SkiaRenderer::CompositeSpan1bpp_0(FX_LPBYTE dest_scan, FX_LPBYTE ori_sc
an, int Bpp, |
| 86 int span_left, int span_len, int span_top, FX_BYTE cover_scan, |
| 87 int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, |
| 88 FX_LPBYTE dest_extra_alpha_scan) |
| 89 { |
| 90 ASSERT(!m_bRgbByteOrder); |
| 91 ASSERT(!m_pDevice->IsCmykImage()); |
| 92 dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + span_left / 8; |
| 93 int col_start = span_left < clip_left ? clip_left - span_left : 0; |
| 94 int col_end = (span_left + span_len) < clip_right ? span_len : (clip_right -
span_left); |
| 95 if (col_end < col_start) { |
| 96 return; |
| 97 } |
| 98 dest_scan += col_start / 8; |
| 99 int index = 0; |
| 100 if (m_pDevice->GetPalette() == NULL) { |
| 101 index = ((FX_BYTE)m_Color == 0xff) ? 1 : 0; |
| 102 } else { |
| 103 for (int i = 0; i < 2; i ++) |
| 104 if (FXARGB_TODIB(m_pDevice->GetPalette()[i]) == m_Color) { |
| 105 index = i; |
| 106 } |
| 107 } |
| 108 FX_LPBYTE dest_scan1 = dest_scan; |
| 109 int src_alpha = m_Alpha * cover_scan / 255; |
| 110 for (int col = col_start; col < col_end; col ++) { |
| 111 if (src_alpha) { |
| 112 if (!index) { |
| 113 *dest_scan1 &= ~(1 << (7 - (col + span_left) % 8)); |
| 114 } else { |
| 115 *dest_scan1 |= 1 << (7 - (col + span_left) % 8); |
| 116 } |
| 117 } |
| 118 dest_scan1 = dest_scan + (span_left % 8 + col - col_start + 1) / 8; |
| 119 } |
| 120 } |
| 121 |
| 122 void CFX_SkiaRenderer::CompositeSpan1bpp_4(FX_LPBYTE dest_scan, FX_LPBYTE ori_sc
an, int Bpp, |
| 123 int span_left, int span_len, int span_top, FX_BYTE cover_scan, |
| 124 int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, |
| 125 FX_LPBYTE dest_extra_alpha_scan) |
| 126 { |
| 127 ASSERT(!m_bRgbByteOrder); |
| 128 ASSERT(!m_pDevice->IsCmykImage()); |
| 129 dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + span_left / 8; |
| 130 clip_scan = (FX_BYTE*)m_pClipMask->GetScanline(span_top - clip_top) - clip_l
eft + span_left; |
| 131 int col_start = span_left < clip_left ? clip_left - span_left : 0; |
| 132 int col_end = (span_left + span_len) < clip_right ? span_len : (clip_right -
span_left); |
| 133 if (col_end < col_start) { |
| 134 return; |
| 135 } |
| 136 dest_scan += col_start / 8; |
| 137 int index = 0; |
| 138 if (m_pDevice->GetPalette() == NULL) { |
| 139 index = ((FX_BYTE)m_Color == 0xff) ? 1 : 0; |
| 140 } else { |
| 141 for (int i = 0; i < 2; i ++) |
| 142 if (FXARGB_TODIB(m_pDevice->GetPalette()[i]) == m_Color) { |
| 143 index = i; |
| 144 } |
| 145 } |
| 146 FX_LPBYTE dest_scan1 = dest_scan; |
| 147 int src_alpha = m_Alpha * cover_scan / 255; |
| 148 for (int col = col_start; col < col_end; col ++) { |
| 149 int src_alpha1 = src_alpha * clip_scan[col] / 255; |
| 150 if (src_alpha1) { |
| 151 if (!index) { |
| 152 *dest_scan1 &= ~(1 << (7 - (col + span_left) % 8)); |
| 153 } else { |
| 154 *dest_scan1 |= 1 << (7 - (col + span_left) % 8); |
| 155 } |
| 156 } |
| 157 dest_scan1 = dest_scan + (span_left % 8 + col - col_start + 1) / 8; |
| 158 } |
| 159 } |
| 160 |
| 161 void CFX_SkiaRenderer::CompositeSpanGray_2(FX_LPBYTE dest_scan, FX_LPBYTE ori_sc
an, int Bpp, |
| 162 int span_left, int span_len, int span_top, FX_BYTE cover_scan, |
| 163 int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, |
| 164 FX_LPBYTE dest_extra_alpha_scan) |
| 165 { |
| 166 ASSERT(!m_pDevice->IsCmykImage()); |
| 167 ASSERT(!m_bRgbByteOrder); |
| 168 dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + span_left; |
| 169 int col_start = span_left < clip_left ? clip_left - span_left : 0; |
| 170 int col_end = (span_left + span_len) < clip_right ? span_len : (clip_right -
span_left); |
| 171 if (col_end < col_start) { |
| 172 return; |
| 173 } |
| 174 dest_scan += col_start; |
| 175 if (cover_scan == 255 && m_Alpha == 255) { |
| 176 for (int col = 0; col < col_end - col_start; col++) { |
| 177 *(FX_DWORD*)dest_scan = FXARGB_MAKE(m_Gray, m_Gray, m_Gray, m_Gray); |
| 178 dest_scan += 4; |
| 179 } |
| 180 return; |
| 181 } |
| 182 int src_alpha = m_Alpha * cover_scan / 255; |
| 183 for (int col = col_start; col < col_end; col ++) { |
| 184 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Gray, src_alpha); |
| 185 dest_scan++; |
| 186 } |
| 187 } |
| 188 |
| 189 void CFX_SkiaRenderer::CompositeSpanGray_3(FX_LPBYTE dest_scan, FX_LPBYTE ori_sc
an, int Bpp, |
| 190 int span_left, int span_len, int span_top, FX_BYTE cover_scan, |
| 191 int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, |
| 192 FX_LPBYTE dest_extra_alpha_scan) |
| 193 { |
| 194 ASSERT(!m_pDevice->IsCmykImage()); |
| 195 ASSERT(!m_bRgbByteOrder); |
| 196 dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + span_left; |
| 197 ori_scan = (FX_BYTE*)m_pOriDevice->GetScanline(span_top) + span_left; |
| 198 int col_start = span_left < clip_left ? clip_left - span_left : 0; |
| 199 int col_end = (span_left + span_len) < clip_right ? span_len : (clip_right -
span_left); |
| 200 if (col_end < col_start) { |
| 201 return; |
| 202 } |
| 203 dest_scan += col_start; |
| 204 ori_scan += col_start; |
| 205 if (m_Alpha == 255 && cover_scan == 255) { |
| 206 for (int col = 0; col < col_end - col_start; col++) { |
| 207 *(FX_DWORD*)dest_scan = FXARGB_MAKE(m_Gray, m_Gray, m_Gray, m_Gray); |
| 208 dest_scan += 4; |
| 209 } |
| 210 } else { |
| 211 int src_alpha = m_Alpha; |
| 212 for (int col = col_start; col < col_end; col ++) { |
| 213 int gray = FXDIB_ALPHA_MERGE(*ori_scan++, m_Gray, src_alpha); |
| 214 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, gray, cover_scan); |
| 215 dest_scan ++; |
| 216 } |
| 217 } |
| 218 } |
| 219 |
| 220 void CFX_SkiaRenderer::CompositeSpanGray_6(FX_LPBYTE dest_scan, FX_LPBYTE ori_sc
an, int Bpp, |
| 221 int span_left, int span_len, int span_top, FX_BYTE cover_scan, |
| 222 int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, |
| 223 FX_LPBYTE dest_extra_alpha_scan) |
| 224 { |
| 225 ASSERT(!m_bRgbByteOrder); |
| 226 dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + span_left; |
| 227 clip_scan = (FX_BYTE*)m_pClipMask->GetScanline(span_top - clip_top) - clip_l
eft + span_left; |
| 228 int col_start = span_left < clip_left ? clip_left - span_left : 0; |
| 229 int col_end = (span_left + span_len) < clip_right ? span_len : (clip_right -
span_left); |
| 230 if (col_end < col_start) { |
| 231 return; |
| 232 } |
| 233 dest_scan += col_start; |
| 234 int src_alpha = m_Alpha * cover_scan / 255; |
| 235 for (int col = col_start; col < col_end; col ++) { |
| 236 int src_alpha1 = src_alpha * clip_scan[col] / 255; |
| 237 if (!src_alpha1) { |
| 238 dest_scan ++; |
| 239 continue; |
| 240 } |
| 241 if (src_alpha1 == 255) { |
| 242 *dest_scan++ = m_Gray; |
| 243 } else { |
| 244 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Gray, src_alpha1); |
| 245 dest_scan ++; |
| 246 } |
| 247 } |
| 248 } |
| 249 |
| 250 void CFX_SkiaRenderer::CompositeSpanGray_7(FX_LPBYTE dest_scan, FX_LPBYTE ori_sc
an, int Bpp, |
| 251 int span_left, int span_len, int span_top, FX_BYTE cover_scan, |
| 252 int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, |
| 253 FX_LPBYTE dest_extra_alpha_scan) |
| 254 { |
| 255 ASSERT(!m_pDevice->IsCmykImage()); |
| 256 dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + span_left; |
| 257 ori_scan = (FX_BYTE*)m_pOriDevice->GetScanline(span_top) + span_left; |
| 258 clip_scan = (FX_BYTE*)m_pClipMask->GetScanline(span_top - clip_top) - clip_l
eft + span_left; |
| 259 int col_start = span_left < clip_left ? clip_left - span_left : 0; |
| 260 int col_end = (span_left + span_len) < clip_right ? span_len : (clip_right -
span_left); |
| 261 if (col_end < col_start) { |
| 262 return; |
| 263 } |
| 264 dest_scan += col_start; |
| 265 ori_scan += col_start; |
| 266 for (int col = col_start; col < col_end; col ++) { |
| 267 int src_alpha = m_Alpha * clip_scan[col] / 255; |
| 268 if (src_alpha == 255 && cover_scan == 255) { |
| 269 *dest_scan++ = m_Gray; |
| 270 ori_scan++; |
| 271 continue; |
| 272 } |
| 273 int gray = FXDIB_ALPHA_MERGE(*ori_scan++, m_Gray, src_alpha); |
| 274 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, gray, cover_scan); |
| 275 dest_scan++; |
| 276 } |
| 277 } |
| 278 |
| 279 void CFX_SkiaRenderer::CompositeSpanARGB_2(FX_LPBYTE dest_scan, FX_LPBYTE ori_sc
an, int Bpp, |
| 280 int span_left, int span_len, int span_top, FX_BYTE cover_scan, |
| 281 int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, |
| 282 FX_LPBYTE dest_extra_alpha_scan) |
| 283 { |
| 284 dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + (span_left << 2); |
| 285 int col_start = span_left < clip_left ? clip_left - span_left : 0; |
| 286 int col_end = (span_left + span_len) < clip_right ? span_len : (clip_right -
span_left); |
| 287 if (col_end < col_start) { |
| 288 return; |
| 289 } |
| 290 dest_scan += col_start << 2; |
| 291 if (m_Alpha == 255 && cover_scan == 255) { |
| 292 for (int col = 0; col < col_end - col_start; col++) { |
| 293 *(FX_DWORD*)dest_scan = m_Color; |
| 294 dest_scan += 4; |
| 295 } |
| 296 return; |
| 297 } |
| 298 int src_alpha; |
| 299 src_alpha = m_Alpha * cover_scan / 255; |
| 300 for (int col = col_start; col < col_end; col ++) { |
| 301 if (dest_scan[3] == 0) { |
| 302 dest_scan[3] = src_alpha; |
| 303 *dest_scan++ = m_Blue; |
| 304 *dest_scan++ = m_Green; |
| 305 *dest_scan = m_Red; |
| 306 dest_scan += 2; |
| 307 continue; |
| 308 } |
| 309 FX_BYTE dest_alpha = dest_scan[3] + src_alpha - dest_scan[3] * src_alpha
/ 255; |
| 310 dest_scan[3] = dest_alpha; |
| 311 int alpha_ratio = src_alpha * 255 / dest_alpha; |
| 312 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Blue, alpha_ratio); |
| 313 dest_scan ++; |
| 314 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Green, alpha_ratio); |
| 315 dest_scan ++; |
| 316 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Red, alpha_ratio); |
| 317 dest_scan += 2; |
| 318 } |
| 319 } |
| 320 |
| 321 void CFX_SkiaRenderer::CompositeSpanARGB_3(FX_LPBYTE dest_scan, FX_LPBYTE ori_sc
an, int Bpp, |
| 322 int span_left, int span_len, int span_top, FX_BYTE cover_scan, |
| 323 int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, |
| 324 FX_LPBYTE dest_extra_alpha_scan) |
| 325 { |
| 326 ASSERT(!m_pDevice->IsCmykImage()); |
| 327 dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + (span_left << 2); |
| 328 int col_start = span_left < clip_left ? clip_left - span_left : 0; |
| 329 int col_end = (span_left + span_len) < clip_right ? span_len : (clip_right -
span_left); |
| 330 if (col_end < col_start) { |
| 331 return; |
| 332 } |
| 333 dest_scan += col_start << 2; |
| 334 if (m_Alpha == 255 && cover_scan == 255) { |
| 335 for (int col = 0; col < col_end - col_start; col++) { |
| 336 *(FX_DWORD*)dest_scan = m_Color; |
| 337 dest_scan += 4; |
| 338 } |
| 339 return; |
| 340 } |
| 341 if (cover_scan == 255) { |
| 342 int dst_color = (0x00ffffff & m_Color) | (m_Alpha << 24); |
| 343 for (int col = 0; col < col_end - col_start; col++) { |
| 344 *(FX_DWORD*)dest_scan = dst_color; |
| 345 dest_scan += 4; |
| 346 } |
| 347 return; |
| 348 } |
| 349 int src_alpha_covered = m_Alpha * cover_scan / 255; |
| 350 for (int col = col_start; col < col_end; col ++) { |
| 351 if (dest_scan[3] == 0) { |
| 352 dest_scan[3] = src_alpha_covered; |
| 353 *dest_scan ++ = m_Blue; |
| 354 *dest_scan ++ = m_Green; |
| 355 *dest_scan = m_Red; |
| 356 dest_scan += 2; |
| 357 continue; |
| 358 } |
| 359 dest_scan[3] = FXDIB_ALPHA_MERGE(dest_scan[3], m_Alpha, cover_scan); |
| 360 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Blue, cover_scan); |
| 361 dest_scan ++; |
| 362 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Green, cover_scan); |
| 363 dest_scan ++; |
| 364 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Red, cover_scan); |
| 365 dest_scan += 2; |
| 366 } |
| 367 } |
| 368 |
| 369 void CFX_SkiaRenderer::CompositeSpanARGB_6(FX_LPBYTE dest_scan, FX_LPBYTE ori_sc
an, int Bpp, |
| 370 int span_left, int span_len, int span_top, FX_BYTE cover_scan, |
| 371 int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, |
| 372 FX_LPBYTE dest_extra_alpha_scan) |
| 373 { |
| 374 dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + (span_left << 2); |
| 375 clip_scan = (FX_BYTE*)m_pClipMask->GetScanline(span_top - clip_top) - clip_l
eft + span_left; |
| 376 int col_start = span_left < clip_left ? clip_left - span_left : 0; |
| 377 int col_end = (span_left + span_len) < clip_right ? span_len : (clip_right -
span_left); |
| 378 if (col_end < col_start) { |
| 379 return; |
| 380 } |
| 381 dest_scan += col_start << 2; |
| 382 int src_alpha = m_Alpha * cover_scan / 255; |
| 383 for (int col = col_start; col < col_end; col ++) { |
| 384 int src_alpha1 = src_alpha * clip_scan[col] / 255; |
| 385 if (!src_alpha1) { |
| 386 dest_scan += 4; |
| 387 continue; |
| 388 } |
| 389 if (src_alpha1 == 255) { |
| 390 *(FX_DWORD*)dest_scan = m_Color; |
| 391 dest_scan += 4; |
| 392 } else { |
| 393 if (dest_scan[3] == 0) { |
| 394 dest_scan[3] = src_alpha1; |
| 395 *dest_scan++ = m_Blue; |
| 396 *dest_scan++ = m_Green; |
| 397 *dest_scan = m_Red; |
| 398 dest_scan += 2; |
| 399 continue; |
| 400 } |
| 401 FX_BYTE dest_alpha = dest_scan[3] + src_alpha1 - dest_scan[3] * src_
alpha1 / 255; |
| 402 dest_scan[3] = dest_alpha; |
| 403 int alpha_ratio = src_alpha1 * 255 / dest_alpha; |
| 404 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Blue, alpha_ratio); |
| 405 dest_scan ++; |
| 406 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Green, alpha_ratio); |
| 407 dest_scan ++; |
| 408 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Red, alpha_ratio); |
| 409 dest_scan += 2; |
| 410 } |
| 411 } |
| 412 } |
| 413 |
| 414 void CFX_SkiaRenderer::CompositeSpanARGB_7(FX_LPBYTE dest_scan, FX_LPBYTE ori_sc
an, int Bpp, |
| 415 int span_left, int span_len, int span_top, FX_BYTE cover_scan, |
| 416 int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, |
| 417 FX_LPBYTE dest_extra_alpha_scan) |
| 418 { |
| 419 ASSERT(!m_pDevice->IsCmykImage()); |
| 420 dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + (span_left << 2); |
| 421 clip_scan = (FX_BYTE*)m_pClipMask->GetScanline(span_top - clip_top) - clip_l
eft + span_left; |
| 422 int col_start = span_left < clip_left ? clip_left - span_left : 0; |
| 423 int col_end = (span_left + span_len) < clip_right ? span_len : (clip_right -
span_left); |
| 424 if (col_end < col_start) { |
| 425 return; |
| 426 } |
| 427 dest_scan += col_start << 2; |
| 428 for (int col = col_start; col < col_end; col ++) { |
| 429 int src_alpha = m_Alpha * clip_scan[col] / 255; |
| 430 int src_alpha_covered = src_alpha * cover_scan / 255; |
| 431 if (src_alpha_covered == 0) { |
| 432 dest_scan += 4; |
| 433 continue; |
| 434 } |
| 435 if (cover_scan == 255 || dest_scan[3] == 0) { |
| 436 dest_scan[3] = src_alpha_covered; |
| 437 *dest_scan ++ = m_Blue; |
| 438 *dest_scan ++ = m_Green; |
| 439 *dest_scan = m_Red; |
| 440 dest_scan += 2; |
| 441 continue; |
| 442 } |
| 443 dest_scan[3] = FXDIB_ALPHA_MERGE(dest_scan[3], src_alpha, cover_scan); |
| 444 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Blue, cover_scan); |
| 445 dest_scan ++; |
| 446 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Green, cover_scan); |
| 447 dest_scan ++; |
| 448 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Red, cover_scan); |
| 449 dest_scan += 2; |
| 450 } |
| 451 } |
| 452 |
| 453 void CFX_SkiaRenderer::CompositeSpanRGB32_2(FX_LPBYTE dest_scan, FX_LPBYTE ori_s
can, int Bpp, |
| 454 int span_left, int span_len, int span_top, FX_BYTE cover_scan, |
| 455 int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, |
| 456 FX_LPBYTE dest_extra_alpha_scan) |
| 457 { |
| 458 dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + (span_left << 2); |
| 459 int col_start = span_left < clip_left ? clip_left - span_left : 0; |
| 460 int col_end = (span_left + span_len) < clip_right ? span_len : (clip_right -
span_left); |
| 461 if (col_end < col_start) { |
| 462 return; |
| 463 } |
| 464 dest_scan += (col_start << 2); |
| 465 if (m_Alpha == 255 && cover_scan == 255) { |
| 466 for (int col = 0; col < col_end - col_start; col++) { |
| 467 *(FX_DWORD*)dest_scan = m_Color; |
| 468 dest_scan += 4; |
| 469 } |
| 470 return; |
| 471 } |
| 472 int src_alpha; |
| 473 src_alpha = m_Alpha * cover_scan / 255; |
| 474 for (int col = col_start; col < col_end; col ++) { |
| 475 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Blue, src_alpha); |
| 476 dest_scan ++; |
| 477 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Green, src_alpha); |
| 478 dest_scan ++; |
| 479 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Red, src_alpha); |
| 480 dest_scan += 2; |
| 481 } |
| 482 } |
| 483 void CFX_SkiaRenderer::CompositeSpanRGB32_3(FX_LPBYTE dest_scan, FX_LPBYTE ori_s
can, int Bpp, |
| 484 int span_left, int span_len, int span_top, FX_BYTE cover_scan, |
| 485 int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, |
| 486 FX_LPBYTE dest_extra_alpha_scan) |
| 487 { |
| 488 dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + (span_left << 2); |
| 489 ori_scan = (FX_BYTE*)m_pOriDevice->GetScanline(span_top) + (span_left << 2)
; |
| 490 int col_start = span_left < clip_left ? clip_left - span_left : 0; |
| 491 int col_end = (span_left + span_len) < clip_right ? span_len : (clip_right -
span_left); |
| 492 if (col_end < col_start) { |
| 493 return; |
| 494 } |
| 495 dest_scan += col_start << 2; |
| 496 ori_scan += col_start << 2; |
| 497 if (m_Alpha == 255 && cover_scan == 255) { |
| 498 for (int col = 0; col < col_end - col_start; col++) { |
| 499 *(FX_DWORD*)dest_scan = m_Color; |
| 500 dest_scan += 4; |
| 501 } |
| 502 return; |
| 503 } |
| 504 int src_alpha = m_Alpha; |
| 505 for (int col = col_start; col < col_end; col ++) { |
| 506 int b = FXDIB_ALPHA_MERGE(*ori_scan++, m_Blue, src_alpha); |
| 507 int g = FXDIB_ALPHA_MERGE(*ori_scan++, m_Green, src_alpha); |
| 508 int r = FXDIB_ALPHA_MERGE(*ori_scan, m_Red, src_alpha); |
| 509 ori_scan += 2; |
| 510 *dest_scan = FXDIB_ALPHA_MERGE( *dest_scan, b, cover_scan); |
| 511 dest_scan ++; |
| 512 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, g, cover_scan); |
| 513 dest_scan ++; |
| 514 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, r, cover_scan); |
| 515 dest_scan += 2; |
| 516 } |
| 517 } |
| 518 void CFX_SkiaRenderer::CompositeSpanRGB32_6(FX_LPBYTE dest_scan, FX_LPBYTE ori_s
can, int Bpp, |
| 519 int span_left, int span_len, int span_top, FX_BYTE cover_scan, |
| 520 int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, |
| 521 FX_LPBYTE dest_extra_alpha_scan) |
| 522 { |
| 523 dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + (span_left << 2); |
| 524 clip_scan = (FX_BYTE*)m_pClipMask->GetScanline(span_top - clip_top) - clip_l
eft + span_left; |
| 525 int col_start = span_left < clip_left ? clip_left - span_left : 0; |
| 526 int col_end = (span_left + span_len) < clip_right ? span_len : (clip_right -
span_left); |
| 527 if (col_end < col_start) { |
| 528 return; |
| 529 } |
| 530 dest_scan += col_start << 2; |
| 531 int src_alpha = m_Alpha * cover_scan / 255; |
| 532 for (int col = col_start; col < col_end; col ++) { |
| 533 int src_alpha1 = src_alpha * clip_scan[col] / 255; |
| 534 if (!src_alpha1) { |
| 535 dest_scan += 4; |
| 536 continue; |
| 537 } |
| 538 if (src_alpha1 == 255) { |
| 539 *(FX_DWORD*)dest_scan = m_Color; |
| 540 dest_scan += 4; |
| 541 } else { |
| 542 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Blue, src_alpha1); |
| 543 dest_scan ++; |
| 544 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Green, src_alpha1); |
| 545 dest_scan ++; |
| 546 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Red, src_alpha1); |
| 547 dest_scan += 2; |
| 548 } |
| 549 } |
| 550 } |
| 551 void CFX_SkiaRenderer::CompositeSpanRGB32_7(FX_LPBYTE dest_scan, FX_LPBYTE ori_s
can, int Bpp, |
| 552 int span_left, int span_len, int span_top, FX_BYTE cover_scan, |
| 553 int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, |
| 554 FX_LPBYTE dest_extra_alpha_scan) |
| 555 { |
| 556 ASSERT(!m_pDevice->IsCmykImage()); |
| 557 dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + (span_left << 2); |
| 558 ori_scan = (FX_BYTE*)m_pOriDevice->GetScanline(span_top) + (span_left << 2)
; |
| 559 clip_scan = (FX_BYTE*)m_pClipMask->GetScanline(span_top - clip_top) - clip_l
eft + span_left; |
| 560 int col_start = span_left < clip_left ? clip_left - span_left : 0; |
| 561 int col_end = (span_left + span_len) < clip_right ? span_len : (clip_right -
span_left); |
| 562 if (col_end < col_start) { |
| 563 return; |
| 564 } |
| 565 dest_scan += col_start << 2; |
| 566 ori_scan += col_start << 2; |
| 567 for (int col = col_start; col < col_end; col ++) { |
| 568 int src_alpha = m_Alpha * clip_scan[col] / 255; |
| 569 if (src_alpha == 255 && cover_scan == 255) { |
| 570 *(FX_DWORD*)dest_scan = m_Color; |
| 571 dest_scan += 4; |
| 572 ori_scan += 4; |
| 573 continue; |
| 574 } |
| 575 int b = FXDIB_ALPHA_MERGE(*ori_scan++, m_Blue, src_alpha); |
| 576 int g = FXDIB_ALPHA_MERGE(*ori_scan++, m_Green, src_alpha); |
| 577 int r = FXDIB_ALPHA_MERGE(*ori_scan, m_Red, src_alpha); |
| 578 ori_scan += 2; |
| 579 *dest_scan = FXDIB_ALPHA_MERGE( *dest_scan, b, cover_scan); |
| 580 dest_scan ++; |
| 581 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, g, cover_scan); |
| 582 dest_scan ++; |
| 583 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, r, cover_scan); |
| 584 dest_scan += 2; |
| 585 } |
| 586 } |
| 587 |
| 588 void CFX_SkiaRenderer::CompositeSpanRGB24_2(FX_LPBYTE dest_scan, FX_LPBYTE ori_s
can, int Bpp, |
| 589 int span_left, int span_len, int span_top, FX_BYTE cover_scan, |
| 590 int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, |
| 591 FX_LPBYTE dest_extra_alpha_scan) |
| 592 { |
| 593 dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + span_left + (span_l
eft << 1); |
| 594 int col_start = span_left < clip_left ? clip_left - span_left : 0; |
| 595 int col_end = (span_left + span_len) < clip_right ? span_len : (clip_right -
span_left); |
| 596 if (col_end < col_start) { |
| 597 return; |
| 598 } |
| 599 dest_scan += (col_start << 1) + col_start; |
| 600 int src_alpha; |
| 601 src_alpha = m_Alpha * cover_scan / 255; |
| 602 if (src_alpha == 255) { |
| 603 for (int col = col_start; col < col_end; col ++) { |
| 604 *dest_scan++ = m_Blue; |
| 605 *dest_scan++ = m_Green; |
| 606 *dest_scan++ = m_Red; |
| 607 } |
| 608 return; |
| 609 } |
| 610 for (int col = col_start; col < col_end; col ++) { |
| 611 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Blue, src_alpha); |
| 612 dest_scan ++; |
| 613 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Green, src_alpha); |
| 614 dest_scan ++; |
| 615 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Red, src_alpha); |
| 616 dest_scan ++; |
| 617 } |
| 618 } |
| 619 void CFX_SkiaRenderer::CompositeSpanRGB24_3(FX_LPBYTE dest_scan, FX_LPBYTE ori_s
can, int Bpp, |
| 620 int span_left, int span_len, int span_top, FX_BYTE cover_scan, |
| 621 int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, |
| 622 FX_LPBYTE dest_extra_alpha_scan) |
| 623 { |
| 624 ASSERT(!m_pDevice->IsCmykImage()); |
| 625 dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + span_left + (span_l
eft << 1); |
| 626 ori_scan = (FX_BYTE*)m_pOriDevice->GetScanline(span_top) + span_left + (spa
n_left << 1); |
| 627 int col_start = span_left < clip_left ? clip_left - span_left : 0; |
| 628 int col_end = (span_left + span_len) < clip_right ? span_len : (clip_right -
span_left); |
| 629 if (col_end < col_start) { |
| 630 return; |
| 631 } |
| 632 dest_scan += (col_start << 1) + col_start; |
| 633 ori_scan += (col_start << 1) + col_start; |
| 634 if (m_Alpha == 255 && cover_scan == 255) { |
| 635 for (int col = col_start; col < col_end; col ++) { |
| 636 *dest_scan ++ = m_Blue; |
| 637 *dest_scan ++ = m_Green; |
| 638 *dest_scan ++ = m_Red; |
| 639 } |
| 640 return; |
| 641 } |
| 642 for (int col = col_start; col < col_end; col ++) { |
| 643 int b = FXDIB_ALPHA_MERGE(*ori_scan++, m_Blue, m_Alpha); |
| 644 int g = FXDIB_ALPHA_MERGE(*ori_scan++, m_Green, m_Alpha); |
| 645 int r = FXDIB_ALPHA_MERGE(*ori_scan++, m_Red, m_Alpha); |
| 646 *dest_scan = FXDIB_ALPHA_MERGE( *dest_scan, b, cover_scan); |
| 647 dest_scan ++; |
| 648 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, g, cover_scan); |
| 649 dest_scan ++; |
| 650 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, r, cover_scan); |
| 651 dest_scan ++; |
| 652 } |
| 653 } |
| 654 void CFX_SkiaRenderer::CompositeSpanRGB24_6(FX_LPBYTE dest_scan, FX_LPBYTE ori_s
can, int Bpp, |
| 655 int span_left, int span_len, int span_top, FX_BYTE cover_scan, |
| 656 int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, |
| 657 FX_LPBYTE dest_extra_alpha_scan) |
| 658 { |
| 659 dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + span_left + (span_l
eft << 1); |
| 660 clip_scan = (FX_BYTE*)m_pClipMask->GetScanline(span_top - clip_top) - clip_l
eft + span_left; |
| 661 int col_start = span_left < clip_left ? clip_left - span_left : 0; |
| 662 int col_end = (span_left + span_len) < clip_right ? span_len : (clip_right -
span_left); |
| 663 if (col_end < col_start) { |
| 664 return; |
| 665 } |
| 666 dest_scan += col_start + (col_start << 1); |
| 667 int src_alpha = m_Alpha * cover_scan / 255; |
| 668 for (int col = col_start; col < col_end; col ++) { |
| 669 int src_alpha1 = src_alpha * clip_scan[col] / 255; |
| 670 if (!src_alpha1) { |
| 671 dest_scan += 3; |
| 672 continue; |
| 673 } |
| 674 if (src_alpha1 == 255) { |
| 675 *dest_scan++ = m_Blue; |
| 676 *dest_scan++ = m_Green; |
| 677 *dest_scan++ = m_Red; |
| 678 } else { |
| 679 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Blue, src_alpha1); |
| 680 dest_scan ++; |
| 681 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Green, src_alpha1); |
| 682 dest_scan ++; |
| 683 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Red, src_alpha1); |
| 684 dest_scan ++; |
| 685 } |
| 686 } |
| 687 } |
| 688 void CFX_SkiaRenderer::CompositeSpanRGB24_7(FX_LPBYTE dest_scan, FX_LPBYTE ori_s
can, int Bpp, |
| 689 int span_left, int span_len, int span_top, FX_BYTE cover_scan, |
| 690 int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, |
| 691 FX_LPBYTE dest_extra_alpha_scan) |
| 692 { |
| 693 ASSERT(!m_pDevice->IsCmykImage()); |
| 694 dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + span_left + (span_l
eft << 1); |
| 695 ori_scan = (FX_BYTE*)m_pOriDevice->GetScanline(span_top) + span_left + (spa
n_left << 1); |
| 696 clip_scan = (FX_BYTE*)m_pClipMask->GetScanline(span_top - clip_top) - clip_l
eft + span_left; |
| 697 int col_start = span_left < clip_left ? clip_left - span_left : 0; |
| 698 int col_end = (span_left + span_len) < clip_right ? span_len : (clip_right -
span_left); |
| 699 if (col_end < col_start) { |
| 700 return; |
| 701 } |
| 702 dest_scan += col_start + (col_start << 1); |
| 703 ori_scan += col_start + (col_start << 1); |
| 704 for (int col = col_start; col < col_end; col ++) { |
| 705 int src_alpha = m_Alpha * clip_scan[col] / 255; |
| 706 if (src_alpha == 255 && cover_scan == 255) { |
| 707 *dest_scan++ = m_Blue; |
| 708 *dest_scan++ = m_Green; |
| 709 *dest_scan++ = m_Red; |
| 710 ori_scan += 3; |
| 711 continue; |
| 712 } |
| 713 int b = FXDIB_ALPHA_MERGE(*ori_scan++, m_Blue, src_alpha); |
| 714 int g = FXDIB_ALPHA_MERGE(*ori_scan++, m_Green, src_alpha); |
| 715 int r = FXDIB_ALPHA_MERGE(*ori_scan++, m_Red, src_alpha); |
| 716 *dest_scan = FXDIB_ALPHA_MERGE( *dest_scan, b, cover_scan); |
| 717 dest_scan ++; |
| 718 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, g, cover_scan); |
| 719 dest_scan ++; |
| 720 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, r, cover_scan); |
| 721 dest_scan ++; |
| 722 } |
| 723 } |
| 724 void CFX_SkiaRenderer::CompositeSpanRGB24_10(FX_LPBYTE dest_scan, FX_LPBYTE ori_
scan, int Bpp, |
| 725 int span_left, int span_len, int span_top, FX_BYTE cover_scan, |
| 726 int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, |
| 727 FX_LPBYTE dest_extra_alpha_scan) |
| 728 { |
| 729 dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + span_left + (span_l
eft << 1); |
| 730 dest_extra_alpha_scan = (FX_BYTE*)m_pDevice->m_pAlphaMask->GetScanline(span
_top) + span_left; |
| 731 int col_start = span_left < clip_left ? clip_left - span_left : 0; |
| 732 int col_end = (span_left + span_len) < clip_right ? span_len : (clip_right -
span_left); |
| 733 if (col_end < col_start) { |
| 734 return; |
| 735 } |
| 736 dest_scan += col_start + (col_start << 1); |
| 737 if (m_Alpha == 255 && cover_scan == 255) { |
| 738 for (int col = col_start; col < col_end; col ++) { |
| 739 *dest_scan++ = (FX_BYTE)m_Blue; |
| 740 *dest_scan++ = (FX_BYTE)m_Green; |
| 741 *dest_scan++ = (FX_BYTE)m_Red; |
| 742 *dest_extra_alpha_scan++ = 255; |
| 743 } |
| 744 return; |
| 745 } |
| 746 int src_alpha = m_Alpha * cover_scan / 255; |
| 747 for (int col = col_start; col < col_end; col ++) { |
| 748 FX_BYTE dest_alpha = (*dest_extra_alpha_scan) + src_alpha - |
| 749 (*dest_extra_alpha_scan) * src_alpha / 255; |
| 750 *dest_extra_alpha_scan++ = dest_alpha; |
| 751 int alpha_ratio = src_alpha * 255 / dest_alpha; |
| 752 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Blue, alpha_ratio); |
| 753 dest_scan ++; |
| 754 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Green, alpha_ratio); |
| 755 dest_scan ++; |
| 756 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Red, alpha_ratio); |
| 757 dest_scan ++; |
| 758 } |
| 759 } |
| 760 void CFX_SkiaRenderer::CompositeSpanRGB24_14(FX_LPBYTE dest_scan, FX_LPBYTE ori_
scan, int Bpp, |
| 761 int span_left, int span_len, int span_top, FX_BYTE cover_scan, |
| 762 int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, |
| 763 FX_LPBYTE dest_extra_alpha_scan) |
| 764 { |
| 765 dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + span_left + (span_l
eft << 1); |
| 766 dest_extra_alpha_scan = (FX_BYTE*)m_pDevice->m_pAlphaMask->GetScanline(span
_top) + span_left; |
| 767 clip_scan = (FX_BYTE*)m_pClipMask->GetScanline(span_top - clip_top) - clip_l
eft + span_left; |
| 768 int col_start = span_left < clip_left ? clip_left - span_left : 0; |
| 769 int col_end = (span_left + span_len) < clip_right ? span_len : (clip_right -
span_left); |
| 770 if (col_end < col_start) { |
| 771 return; |
| 772 } |
| 773 dest_scan += col_start + (col_start << 1); |
| 774 int src_alpha = m_Alpha * cover_scan / 255; |
| 775 for (int col = col_start; col < col_end; col ++) { |
| 776 int src_alpha1 = src_alpha * clip_scan[col] / 255; |
| 777 if (!src_alpha1) { |
| 778 dest_extra_alpha_scan++; |
| 779 dest_scan += 3; |
| 780 continue; |
| 781 } |
| 782 if (src_alpha1 == 255) { |
| 783 *dest_scan++ = (FX_BYTE)m_Blue; |
| 784 *dest_scan++ = (FX_BYTE)m_Green; |
| 785 *dest_scan++ = (FX_BYTE)m_Red; |
| 786 *dest_extra_alpha_scan++ = (FX_BYTE)m_Alpha; |
| 787 } else { |
| 788 FX_BYTE dest_alpha = (*dest_extra_alpha_scan) + src_alpha1 - |
| 789 (*dest_extra_alpha_scan) * src_alpha1 / 255; |
| 790 *dest_extra_alpha_scan++ = dest_alpha; |
| 791 int alpha_ratio = src_alpha1 * 255 / dest_alpha; |
| 792 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Blue, alpha_ratio); |
| 793 dest_scan ++; |
| 794 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Green, alpha_ratio); |
| 795 dest_scan ++; |
| 796 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Red, alpha_ratio); |
| 797 dest_scan ++; |
| 798 } |
| 799 } |
| 800 } |
| 801 |
| 802 void CFX_SkiaRenderer::CompositeSpanCMYK(FX_LPBYTE dest_scan, FX_LPBYTE ori_scan
, int Bpp, |
| 803 int span_left, int span_len, int span_top, FX_BYTE cover_scan, |
| 804 int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, |
| 805 FX_LPBYTE dest_extra_alpha_scan) |
| 806 { |
| 807 ASSERT(!m_bRgbByteOrder); |
| 808 int col_start = span_left < clip_left ? clip_left - span_left : 0; |
| 809 int col_end = (span_left + span_len) < clip_right ? span_len : (clip_right -
span_left); |
| 810 if (col_end < col_start) { |
| 811 return; |
| 812 } |
| 813 dest_scan += col_start * 4; |
| 814 |
| 815 if (dest_extra_alpha_scan) { |
| 816 for (int col = col_start; col < col_end; col ++) { |
| 817 int src_alpha; |
| 818 if (m_bFullCover) { |
| 819 if (clip_scan) { |
| 820 src_alpha = m_Alpha * clip_scan[col] / 255; |
| 821 } else { |
| 822 src_alpha = m_Alpha; |
| 823 } |
| 824 } else { |
| 825 if (clip_scan) { |
| 826 src_alpha = m_Alpha * cover_scan * clip_scan[col] / 255 / 25
5; |
| 827 } else { |
| 828 src_alpha = m_Alpha * cover_scan / 255; |
| 829 } |
| 830 } |
| 831 if (src_alpha) { |
| 832 if (src_alpha == 255) { |
| 833 *(FX_CMYK*)dest_scan = m_Color; |
| 834 *dest_extra_alpha_scan = (FX_BYTE)m_Alpha; |
| 835 } else { |
| 836 FX_BYTE dest_alpha = (*dest_extra_alpha_scan) + src_alpha - |
| 837 (*dest_extra_alpha_scan) * src_alpha /
255; |
| 838 *dest_extra_alpha_scan++ = dest_alpha; |
| 839 int alpha_ratio = src_alpha * 255 / dest_alpha; |
| 840 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Red, alpha_rati
o); |
| 841 dest_scan ++; |
| 842 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Green, alpha_ra
tio); |
| 843 dest_scan ++; |
| 844 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Blue, alpha_rat
io); |
| 845 dest_scan ++; |
| 846 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Gray, alpha_rat
io); |
| 847 dest_scan ++; |
| 848 continue; |
| 849 } |
| 850 } |
| 851 dest_extra_alpha_scan++; |
| 852 dest_scan += 4; |
| 853 } |
| 854 } else { |
| 855 for (int col = col_start; col < col_end; col ++) { |
| 856 int src_alpha; |
| 857 if (clip_scan) { |
| 858 src_alpha = m_Alpha * cover_scan * clip_scan[col] / 255 / 255; |
| 859 } else { |
| 860 src_alpha = m_Alpha * cover_scan / 255; |
| 861 } |
| 862 if (src_alpha) { |
| 863 if (src_alpha == 255) { |
| 864 *(FX_CMYK*)dest_scan = m_Color; |
| 865 } else { |
| 866 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Red, src_alpha)
; |
| 867 dest_scan ++; |
| 868 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Green, src_alph
a); |
| 869 dest_scan ++; |
| 870 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Blue, src_alpha
); |
| 871 dest_scan ++; |
| 872 *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Gray, src_alpha
); |
| 873 dest_scan ++; |
| 874 continue; |
| 875 } |
| 876 } |
| 877 dest_scan += 4; |
| 878 } |
| 879 } |
| 880 } |
| 881 |
| 882 FX_BOOL CFX_SkiaRenderer::Init(CFX_DIBitmap* pDevice, CFX_DIBitmap* pOriDevice,
const CFX_ClipRgn* pClipRgn, FX_DWORD color, FX_BOOL bFullCover, FX_BOOL bRgbByt
eOrder, |
| 883 int alpha_flag, void* pIccTransform) |
| 884 { |
| 885 m_pDevice = pDevice; |
| 886 m_pClipRgn = pClipRgn; |
| 887 m_bRgbByteOrder = bRgbByteOrder; |
| 888 m_pOriDevice = pOriDevice; |
| 889 m_pDestScan = NULL; |
| 890 m_pDestExtraAlphaScan = NULL; |
| 891 m_pOriScan = NULL; |
| 892 m_pClipScan = NULL; |
| 893 composite_span = NULL; |
| 894 if (m_pClipRgn) { |
| 895 m_ClipBox = m_pClipRgn->GetBox(); |
| 896 } else { |
| 897 m_ClipBox.left = m_ClipBox.top = 0; |
| 898 m_ClipBox.right = m_pDevice->GetWidth(); |
| 899 m_ClipBox.bottom = m_pDevice->GetHeight(); |
| 900 } |
| 901 m_pClipMask = NULL; |
| 902 if (m_pClipRgn && m_pClipRgn->GetType() == CFX_ClipRgn::MaskF) { |
| 903 m_pClipMask = m_pClipRgn->GetMask(); |
| 904 m_pClipScan = m_pClipMask->GetBuffer(); |
| 905 } |
| 906 if (m_pDevice->m_pAlphaMask) { |
| 907 m_pDestExtraAlphaScan = m_pDevice->m_pAlphaMask->GetBuffer(); |
| 908 } |
| 909 if (m_pOriDevice) { |
| 910 m_pOriScan = m_pOriDevice->GetBuffer(); |
| 911 } |
| 912 m_pDestScan = m_pDevice->GetBuffer(); |
| 913 m_bFullCover = bFullCover; |
| 914 FX_BOOL bObjectCMYK = FXGETFLAG_COLORTYPE(alpha_flag); |
| 915 FX_BOOL bDeviceCMYK = pDevice->IsCmykImage(); |
| 916 m_Alpha = bObjectCMYK ? FXGETFLAG_ALPHA_FILL(alpha_flag) : FXARGB_A(color); |
| 917 ICodec_IccModule* pIccModule = NULL; |
| 918 if (!CFX_GEModule::Get()->GetCodecModule() || !CFX_GEModule::Get()->GetCodec
Module()->GetIccModule()) { |
| 919 pIccTransform = NULL; |
| 920 } else { |
| 921 pIccModule = CFX_GEModule::Get()->GetCodecModule()->GetIccModule(); |
| 922 } |
| 923 if (m_pDevice->GetBPP() == 8) { |
| 924 ASSERT(!m_bRgbByteOrder); |
| 925 if (m_pDevice->IsAlphaMask()) { |
| 926 m_Gray = 255; |
| 927 } else { |
| 928 if (pIccTransform) { |
| 929 FX_BYTE gray; |
| 930 color = bObjectCMYK ? FXCMYK_TODIB(color) : FXARGB_TODIB(color); |
| 931 pIccModule->TranslateScanline(pIccTransform, &gray, (FX_LPCBYTE)
&color, 1); |
| 932 m_Gray = gray; |
| 933 } else { |
| 934 if (bObjectCMYK) { |
| 935 FX_BYTE r, g, b; |
| 936 AdobeCMYK_to_sRGB1(FXSYS_GetCValue(color), FXSYS_GetMValue(c
olor), FXSYS_GetYValue(color), FXSYS_GetKValue(color), |
| 937 r, g, b); |
| 938 m_Gray = FXRGB2GRAY(r, g, b); |
| 939 } else { |
| 940 m_Gray = FXRGB2GRAY(FXARGB_R(color), FXARGB_G(color), FXARGB
_B(color)); |
| 941 } |
| 942 } |
| 943 } |
| 944 } else { |
| 945 if (bDeviceCMYK) { |
| 946 ASSERT(!m_bRgbByteOrder); |
| 947 composite_span = &CFX_SkiaRenderer::CompositeSpanCMYK; |
| 948 if (bObjectCMYK) { |
| 949 m_Color = FXCMYK_TODIB(color); |
| 950 if (pIccTransform) { |
| 951 pIccModule->TranslateScanline(pIccTransform, (FX_LPBYTE)&m_C
olor, (FX_LPCBYTE)&m_Color, 1); |
| 952 } |
| 953 } else { |
| 954 if (!pIccTransform) { |
| 955 return FALSE; |
| 956 } |
| 957 color = FXARGB_TODIB(color); |
| 958 pIccModule->TranslateScanline(pIccTransform, (FX_LPBYTE)&m_Color
, (FX_LPCBYTE)&color, 1); |
| 959 } |
| 960 m_Red = ((FX_LPBYTE)&m_Color)[0]; |
| 961 m_Green = ((FX_LPBYTE)&m_Color)[1]; |
| 962 m_Blue = ((FX_LPBYTE)&m_Color)[2]; |
| 963 m_Gray = ((FX_LPBYTE)&m_Color)[3]; |
| 964 return TRUE; |
| 965 } else { |
| 966 if (pIccTransform) { |
| 967 color = bObjectCMYK ? FXCMYK_TODIB(color) : FXARGB_TODIB(color); |
| 968 pIccModule->TranslateScanline(pIccTransform, (FX_LPBYTE)&m_Color
, (FX_LPCBYTE)&color, 1); |
| 969 ((FX_LPBYTE)&m_Color)[3] = m_Alpha; |
| 970 m_Red = ((FX_LPBYTE)&m_Color)[2]; |
| 971 m_Green = ((FX_LPBYTE)&m_Color)[1]; |
| 972 m_Blue = ((FX_LPBYTE)&m_Color)[0]; |
| 973 if (m_bRgbByteOrder) { |
| 974 m_Red = ((FX_LPBYTE)&m_Color)[0]; |
| 975 m_Blue = ((FX_LPBYTE)&m_Color)[2]; |
| 976 m_Color = FXARGB_TODIB(m_Color); |
| 977 m_Color = FXARGB_TOBGRORDERDIB(m_Color); |
| 978 } |
| 979 } else { |
| 980 if (bObjectCMYK) { |
| 981 FX_BYTE r, g, b; |
| 982 AdobeCMYK_to_sRGB1(FXSYS_GetCValue(color), FXSYS_GetMValue(c
olor), FXSYS_GetYValue(color), FXSYS_GetKValue(color), |
| 983 r, g, b); |
| 984 m_Color = FXARGB_MAKE(m_Alpha, r, g, b); |
| 985 if (m_bRgbByteOrder) { |
| 986 m_Color = FXARGB_TOBGRORDERDIB(m_Color); |
| 987 m_Red = b; |
| 988 m_Green = g; |
| 989 m_Blue = r; |
| 990 } else { |
| 991 m_Color = FXARGB_TODIB(m_Color); |
| 992 m_Red = r; |
| 993 m_Green = g; |
| 994 m_Blue = b; |
| 995 } |
| 996 } else { |
| 997 if (m_bRgbByteOrder) { |
| 998 m_Color = FXARGB_TOBGRORDERDIB(color); |
| 999 ArgbDecode(color, m_Alpha, m_Blue, m_Green, m_Red); |
| 1000 } else { |
| 1001 m_Color = FXARGB_TODIB(color); |
| 1002 ArgbDecode(color, m_Alpha, m_Red, m_Green, m_Blue); |
| 1003 } |
| 1004 } |
| 1005 } |
| 1006 } |
| 1007 } |
| 1008 m_ProcessFilter = (m_pOriDevice ? 1 : 0) |
| 1009 + (m_pDevice->GetBPP() >= 8 ? 2 : 0) |
| 1010 + (m_pClipMask ? 4 : 0) |
| 1011 + (m_pDevice->m_pAlphaMask ? 8 : 0); |
| 1012 switch(m_ProcessFilter) { |
| 1013 case 0: |
| 1014 composite_span = &CFX_SkiaRenderer::CompositeSpan1bpp_0; |
| 1015 break; |
| 1016 case 2: { |
| 1017 if (m_pDevice->GetBPP() == 8) { |
| 1018 composite_span = &CFX_SkiaRenderer::CompositeSpanGray_2; |
| 1019 } else if (m_pDevice->GetBPP() == 24) { |
| 1020 composite_span = &CFX_SkiaRenderer::CompositeSpanRGB24_2; |
| 1021 } else { |
| 1022 composite_span = m_pDevice->HasAlpha() ? &CFX_SkiaRenderer::
CompositeSpanARGB_2 : &CFX_SkiaRenderer::CompositeSpanRGB32_2; |
| 1023 } |
| 1024 } |
| 1025 break; |
| 1026 case 3: { |
| 1027 if (m_pDevice->GetBPP() == 8) { |
| 1028 composite_span = &CFX_SkiaRenderer::CompositeSpanGray_3; |
| 1029 } else if (m_pDevice->GetBPP() == 24) { |
| 1030 composite_span = &CFX_SkiaRenderer::CompositeSpanRGB24_3; |
| 1031 } else { |
| 1032 composite_span = m_pDevice->HasAlpha() ? &CFX_SkiaRenderer::
CompositeSpanARGB_3 : &CFX_SkiaRenderer::CompositeSpanRGB32_3; |
| 1033 } |
| 1034 } |
| 1035 break; |
| 1036 case 4: |
| 1037 composite_span = &CFX_SkiaRenderer::CompositeSpan1bpp_4; |
| 1038 break; |
| 1039 case 6: { |
| 1040 if (m_pDevice->GetBPP() == 8) { |
| 1041 composite_span = &CFX_SkiaRenderer::CompositeSpanGray_6; |
| 1042 } else if (m_pDevice->GetBPP() == 24) { |
| 1043 composite_span = &CFX_SkiaRenderer::CompositeSpanRGB24_6; |
| 1044 } else { |
| 1045 composite_span = m_pDevice->HasAlpha() ? &CFX_SkiaRenderer::
CompositeSpanARGB_6 : &CFX_SkiaRenderer::CompositeSpanRGB32_6; |
| 1046 } |
| 1047 } |
| 1048 break; |
| 1049 case 7: { |
| 1050 if (m_pDevice->GetBPP() == 8) { |
| 1051 composite_span = &CFX_SkiaRenderer::CompositeSpanGray_7; |
| 1052 } else if (m_pDevice->GetBPP() == 24) { |
| 1053 composite_span = &CFX_SkiaRenderer::CompositeSpanRGB24_7; |
| 1054 } else { |
| 1055 composite_span = m_pDevice->HasAlpha() ? &CFX_SkiaRenderer::
CompositeSpanARGB_7 : &CFX_SkiaRenderer::CompositeSpanRGB32_7; |
| 1056 } |
| 1057 } |
| 1058 break; |
| 1059 case 1: |
| 1060 case 5: |
| 1061 case 8: |
| 1062 case 9: |
| 1063 case 11: |
| 1064 case 12: |
| 1065 case 13: |
| 1066 case 15: |
| 1067 break; |
| 1068 case 10: |
| 1069 composite_span = &CFX_SkiaRenderer::CompositeSpanRGB24_10; |
| 1070 break; |
| 1071 case 14: |
| 1072 composite_span = &CFX_SkiaRenderer::CompositeSpanRGB24_14; |
| 1073 break; |
| 1074 } |
| 1075 if (composite_span == NULL) { |
| 1076 return FALSE; |
| 1077 } |
| 1078 return TRUE; |
| 1079 } |
| 1080 |
| 1081 void CFX_SkiaA8Renderer::blitAntiH(int x, int y, const SkAlpha antialias[], cons
t int16_t runs[]) |
| 1082 { |
| 1083 FXSYS_assert(m_pDevice); |
| 1084 int dst_y = y - m_Top; |
| 1085 if (dst_y < 0 || dst_y >= m_pDevice->GetHeight()) { |
| 1086 return; |
| 1087 } |
| 1088 FX_LPBYTE dest_scan = m_pDevice->GetBuffer() + m_pDevice->GetPitch() * dst_y
; |
| 1089 FX_LPBYTE dest_pos = dest_scan; |
| 1090 while (1) { |
| 1091 if (x >= m_dstWidth) { |
| 1092 return; |
| 1093 } |
| 1094 int width = runs[0]; |
| 1095 SkASSERT(width >= 0); |
| 1096 if (width <= 0) { |
| 1097 return; |
| 1098 } |
| 1099 unsigned aa = antialias[0]; |
| 1100 if (aa) { |
| 1101 int col_start = x < m_Left ? 0 : x - m_Left; |
| 1102 int col_end = x + width; |
| 1103 col_end = col_end < m_dstWidth ? col_end - m_Left : m_pDevice->GetWi
dth(); |
| 1104 int result = col_end - col_start; |
| 1105 if (result > 0) { |
| 1106 dest_pos = dest_scan + col_start; |
| 1107 FXSYS_memset(dest_pos, aa, result); |
| 1108 } |
| 1109 } |
| 1110 runs += width; |
| 1111 antialias += width; |
| 1112 x += width; |
| 1113 } |
| 1114 } |
| 1115 void CFX_SkiaA8Renderer::blitH(int x, int y, int width) |
| 1116 { |
| 1117 FXSYS_assert(m_pDevice); |
| 1118 int dst_y = y - m_Top; |
| 1119 if (dst_y < 0 || dst_y >= m_pDevice->GetHeight()) { |
| 1120 return; |
| 1121 } |
| 1122 if (x >= m_dstWidth) { |
| 1123 return; |
| 1124 } |
| 1125 FX_LPBYTE dest_scan = m_pDevice->GetBuffer() + m_pDevice->GetPitch() * dst_y
; |
| 1126 int col_start = x < m_Left ? 0 : x - m_Left; |
| 1127 int col_end = x + width; |
| 1128 col_end = col_end < m_dstWidth ? col_end - m_Left : m_pDevice->GetWidth(); |
| 1129 int result = col_end - col_start; |
| 1130 if (result > 0) { |
| 1131 FX_BYTE* dest_pos = dest_scan + col_start; |
| 1132 FXSYS_memset(dest_pos, 255, result); |
| 1133 } |
| 1134 } |
| 1135 void CFX_SkiaA8Renderer::blitV(int x, int y, int height, SkAlpha alpha) |
| 1136 { |
| 1137 FXSYS_assert(alpha); |
| 1138 if (alpha == 255) { |
| 1139 this->blitRect(x, y, 1, height); |
| 1140 } else { |
| 1141 int16_t runs[2]; |
| 1142 runs[0] = 1; |
| 1143 runs[1] = 0; |
| 1144 while (--height >= 0) { |
| 1145 if (y >= m_dstHeight) { |
| 1146 return; |
| 1147 } |
| 1148 this->blitAntiH(x, y ++, &alpha, runs); |
| 1149 } |
| 1150 } |
| 1151 } |
| 1152 void CFX_SkiaA8Renderer::blitRect(int x, int y, int width, int height) |
| 1153 { |
| 1154 FXSYS_assert(m_pDevice); |
| 1155 while (--height >= 0) { |
| 1156 if (y >= m_dstHeight) { |
| 1157 return; |
| 1158 } |
| 1159 blitH(x , y ++, width); |
| 1160 } |
| 1161 } |
| 1162 void CFX_SkiaA8Renderer::blitAntiRect(int x, int y, int width, int height, |
| 1163 SkAlpha leftAlpha, SkAlpha rightAlpha) |
| 1164 { |
| 1165 blitV(x++, y, height, leftAlpha); |
| 1166 if (width > 0) { |
| 1167 blitRect(x, y, width, height); |
| 1168 x += width; |
| 1169 } |
| 1170 blitV(x, y, height, rightAlpha); |
| 1171 } |
| 1172 FX_BOOL CFX_SkiaA8Renderer::Init(CFX_DIBitmap* pDevice, int Left, int Top) |
| 1173 { |
| 1174 m_pDevice = pDevice; |
| 1175 m_Left = Left; |
| 1176 m_Top = Top; |
| 1177 if (pDevice) { |
| 1178 m_dstWidth = m_Left + pDevice->GetWidth(); |
| 1179 m_dstHeight = m_Top + pDevice->GetHeight(); |
| 1180 } |
| 1181 return TRUE; |
| 1182 } |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 402463002:
Replace agg with skia (Closed)
Base URL: https://pdfium.googlesource.com/pdfium.git@master