/src/libjpeg-turbo.3.0.x/jdcol565.c
Line | Count | Source |
1 | | /* |
2 | | * jdcol565.c |
3 | | * |
4 | | * This file was part of the Independent JPEG Group's software: |
5 | | * Copyright (C) 1991-1997, Thomas G. Lane. |
6 | | * Modifications: |
7 | | * Copyright (C) 2013, Linaro Limited. |
8 | | * Copyright (C) 2014-2015, 2022, 2026, D. R. Commander. |
9 | | * For conditions of distribution and use, see the accompanying README.ijg |
10 | | * file. |
11 | | * |
12 | | * This file contains output colorspace conversion routines. |
13 | | */ |
14 | | |
15 | | /* This file is included by jdcolor.c */ |
16 | | |
17 | | |
18 | | INLINE |
19 | | LOCAL(void) |
20 | | ycc_rgb565_convert_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf, |
21 | | JDIMENSION input_row, _JSAMPARRAY output_buf, |
22 | | int num_rows) |
23 | 0 | { |
24 | 0 | #if BITS_IN_JSAMPLE != 16 |
25 | 0 | my_cconvert_ptr cconvert = (my_cconvert_ptr)cinfo->cconvert; |
26 | 0 | register int y, cb, cr; |
27 | 0 | register _JSAMPROW outptr; |
28 | 0 | register _JSAMPROW inptr0, inptr1, inptr2; |
29 | 0 | register JDIMENSION col; |
30 | | /* copy these pointers into registers if possible */ |
31 | 0 | register _JSAMPLE *range_limit = (_JSAMPLE *)cinfo->sample_range_limit; |
32 | 0 | register int *Crrtab = cconvert->Cr_r_tab; |
33 | 0 | register int *Cbbtab = cconvert->Cb_b_tab; |
34 | 0 | register JLONG *Crgtab = cconvert->Cr_g_tab; |
35 | 0 | register JLONG *Cbgtab = cconvert->Cb_g_tab; |
36 | 0 | SHIFT_TEMPS |
37 | |
|
38 | 0 | while (--num_rows >= 0) { |
39 | 0 | JLONG rgb; |
40 | 0 | unsigned int r, g, b; |
41 | 0 | JDIMENSION num_cols = cinfo->output_width; |
42 | 0 | inptr0 = input_buf[0][input_row]; |
43 | 0 | inptr1 = input_buf[1][input_row]; |
44 | 0 | inptr2 = input_buf[2][input_row]; |
45 | 0 | input_row++; |
46 | 0 | outptr = *output_buf++; |
47 | |
|
48 | 0 | if (PACK_NEED_ALIGNMENT(outptr)) { |
49 | 0 | y = *inptr0++; |
50 | 0 | cb = *inptr1++; |
51 | 0 | cr = *inptr2++; |
52 | 0 | r = range_limit[y + Crrtab[cr]]; |
53 | 0 | g = range_limit[y + ((int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], |
54 | 0 | SCALEBITS))]; |
55 | 0 | b = range_limit[y + Cbbtab[cb]]; |
56 | 0 | rgb = PACK_SHORT_565(r, g, b); |
57 | 0 | *(INT16 *)outptr = (INT16)rgb; |
58 | 0 | outptr += 2; |
59 | 0 | num_cols--; |
60 | 0 | } |
61 | 0 | for (col = 0; col < (num_cols >> 1); col++) { |
62 | 0 | y = *inptr0++; |
63 | 0 | cb = *inptr1++; |
64 | 0 | cr = *inptr2++; |
65 | 0 | r = range_limit[y + Crrtab[cr]]; |
66 | 0 | g = range_limit[y + ((int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], |
67 | 0 | SCALEBITS))]; |
68 | 0 | b = range_limit[y + Cbbtab[cb]]; |
69 | 0 | rgb = PACK_SHORT_565(r, g, b); |
70 | |
|
71 | 0 | y = *inptr0++; |
72 | 0 | cb = *inptr1++; |
73 | 0 | cr = *inptr2++; |
74 | 0 | r = range_limit[y + Crrtab[cr]]; |
75 | 0 | g = range_limit[y + ((int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], |
76 | 0 | SCALEBITS))]; |
77 | 0 | b = range_limit[y + Cbbtab[cb]]; |
78 | 0 | rgb = PACK_TWO_PIXELS(rgb, PACK_SHORT_565(r, g, b)); |
79 | |
|
80 | 0 | WRITE_TWO_ALIGNED_PIXELS(outptr, rgb); |
81 | 0 | outptr += 4; |
82 | 0 | } |
83 | 0 | if (num_cols & 1) { |
84 | 0 | y = *inptr0; |
85 | 0 | cb = *inptr1; |
86 | 0 | cr = *inptr2; |
87 | 0 | r = range_limit[y + Crrtab[cr]]; |
88 | 0 | g = range_limit[y + ((int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], |
89 | 0 | SCALEBITS))]; |
90 | 0 | b = range_limit[y + Cbbtab[cb]]; |
91 | 0 | rgb = PACK_SHORT_565(r, g, b); |
92 | 0 | *(INT16 *)outptr = (INT16)rgb; |
93 | 0 | } |
94 | 0 | } |
95 | | #else |
96 | | ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); |
97 | | #endif |
98 | 0 | } Unexecuted instantiation: jdcolor.c:ycc_rgb565_convert_be Unexecuted instantiation: jdcolor.c:ycc_rgb565_convert_le |
99 | | |
100 | | |
101 | | INLINE |
102 | | LOCAL(void) |
103 | | ycc_rgb565D_convert_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf, |
104 | | JDIMENSION input_row, _JSAMPARRAY output_buf, |
105 | | int num_rows) |
106 | 0 | { |
107 | 0 | #if BITS_IN_JSAMPLE != 16 |
108 | 0 | my_cconvert_ptr cconvert = (my_cconvert_ptr)cinfo->cconvert; |
109 | 0 | register int y, cb, cr; |
110 | 0 | register _JSAMPROW outptr; |
111 | 0 | register _JSAMPROW inptr0, inptr1, inptr2; |
112 | 0 | register int row; |
113 | 0 | register JDIMENSION col; |
114 | | /* copy these pointers into registers if possible */ |
115 | 0 | register _JSAMPLE *range_limit = (_JSAMPLE *)cinfo->sample_range_limit; |
116 | 0 | register int *Crrtab = cconvert->Cr_r_tab; |
117 | 0 | register int *Cbbtab = cconvert->Cb_b_tab; |
118 | 0 | register JLONG *Crgtab = cconvert->Cr_g_tab; |
119 | 0 | register JLONG *Cbgtab = cconvert->Cb_g_tab; |
120 | 0 | SHIFT_TEMPS |
121 | |
|
122 | 0 | for (row = 0; row < num_rows; row++) { |
123 | 0 | JLONG rgb; |
124 | 0 | unsigned int r, g, b; |
125 | 0 | JDIMENSION num_cols = cinfo->output_width; |
126 | 0 | JLONG d0 = dither_matrix[(cinfo->output_scanline + row) & DITHER_MASK]; |
127 | |
|
128 | 0 | inptr0 = input_buf[0][input_row]; |
129 | 0 | inptr1 = input_buf[1][input_row]; |
130 | 0 | inptr2 = input_buf[2][input_row]; |
131 | 0 | input_row++; |
132 | 0 | outptr = *output_buf++; |
133 | 0 | if (PACK_NEED_ALIGNMENT(outptr)) { |
134 | 0 | y = *inptr0++; |
135 | 0 | cb = *inptr1++; |
136 | 0 | cr = *inptr2++; |
137 | 0 | r = range_limit[DITHER_565_R(y + Crrtab[cr], d0)]; |
138 | 0 | g = range_limit[DITHER_565_G(y + |
139 | 0 | ((int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], |
140 | 0 | SCALEBITS)), d0)]; |
141 | 0 | b = range_limit[DITHER_565_B(y + Cbbtab[cb], d0)]; |
142 | 0 | d0 = DITHER_ROTATE(d0); |
143 | 0 | rgb = PACK_SHORT_565(r, g, b); |
144 | 0 | *(INT16 *)outptr = (INT16)rgb; |
145 | 0 | outptr += 2; |
146 | 0 | num_cols--; |
147 | 0 | } |
148 | 0 | for (col = 0; col < (num_cols >> 1); col++) { |
149 | 0 | y = *inptr0++; |
150 | 0 | cb = *inptr1++; |
151 | 0 | cr = *inptr2++; |
152 | 0 | r = range_limit[DITHER_565_R(y + Crrtab[cr], d0)]; |
153 | 0 | g = range_limit[DITHER_565_G(y + |
154 | 0 | ((int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], |
155 | 0 | SCALEBITS)), d0)]; |
156 | 0 | b = range_limit[DITHER_565_B(y + Cbbtab[cb], d0)]; |
157 | 0 | d0 = DITHER_ROTATE(d0); |
158 | 0 | rgb = PACK_SHORT_565(r, g, b); |
159 | |
|
160 | 0 | y = *inptr0++; |
161 | 0 | cb = *inptr1++; |
162 | 0 | cr = *inptr2++; |
163 | 0 | r = range_limit[DITHER_565_R(y + Crrtab[cr], d0)]; |
164 | 0 | g = range_limit[DITHER_565_G(y + |
165 | 0 | ((int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], |
166 | 0 | SCALEBITS)), d0)]; |
167 | 0 | b = range_limit[DITHER_565_B(y + Cbbtab[cb], d0)]; |
168 | 0 | d0 = DITHER_ROTATE(d0); |
169 | 0 | rgb = PACK_TWO_PIXELS(rgb, PACK_SHORT_565(r, g, b)); |
170 | |
|
171 | 0 | WRITE_TWO_ALIGNED_PIXELS(outptr, rgb); |
172 | 0 | outptr += 4; |
173 | 0 | } |
174 | 0 | if (num_cols & 1) { |
175 | 0 | y = *inptr0; |
176 | 0 | cb = *inptr1; |
177 | 0 | cr = *inptr2; |
178 | 0 | r = range_limit[DITHER_565_R(y + Crrtab[cr], d0)]; |
179 | 0 | g = range_limit[DITHER_565_G(y + |
180 | 0 | ((int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], |
181 | 0 | SCALEBITS)), d0)]; |
182 | 0 | b = range_limit[DITHER_565_B(y + Cbbtab[cb], d0)]; |
183 | 0 | rgb = PACK_SHORT_565(r, g, b); |
184 | 0 | *(INT16 *)outptr = (INT16)rgb; |
185 | 0 | } |
186 | 0 | } |
187 | | #else |
188 | | ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); |
189 | | #endif |
190 | 0 | } Unexecuted instantiation: jdcolor.c:ycc_rgb565D_convert_be Unexecuted instantiation: jdcolor.c:ycc_rgb565D_convert_le |
191 | | |
192 | | |
193 | | INLINE |
194 | | LOCAL(void) |
195 | | rgb_rgb565_convert_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf, |
196 | | JDIMENSION input_row, _JSAMPARRAY output_buf, |
197 | | int num_rows) |
198 | 0 | { |
199 | 0 | register _JSAMPROW outptr; |
200 | 0 | register _JSAMPROW inptr0, inptr1, inptr2; |
201 | 0 | register JDIMENSION col; |
202 | 0 | SHIFT_TEMPS |
203 | |
|
204 | 0 | while (--num_rows >= 0) { |
205 | 0 | JLONG rgb; |
206 | 0 | unsigned int r, g, b; |
207 | 0 | JDIMENSION num_cols = cinfo->output_width; |
208 | |
|
209 | 0 | inptr0 = input_buf[0][input_row]; |
210 | 0 | inptr1 = input_buf[1][input_row]; |
211 | 0 | inptr2 = input_buf[2][input_row]; |
212 | 0 | input_row++; |
213 | 0 | outptr = *output_buf++; |
214 | 0 | if (PACK_NEED_ALIGNMENT(outptr)) { |
215 | 0 | r = *inptr0++; |
216 | 0 | g = *inptr1++; |
217 | 0 | b = *inptr2++; |
218 | 0 | rgb = PACK_SHORT_565(r, g, b); |
219 | 0 | *(INT16 *)outptr = (INT16)rgb; |
220 | 0 | outptr += 2; |
221 | 0 | num_cols--; |
222 | 0 | } |
223 | 0 | for (col = 0; col < (num_cols >> 1); col++) { |
224 | 0 | r = *inptr0++; |
225 | 0 | g = *inptr1++; |
226 | 0 | b = *inptr2++; |
227 | 0 | rgb = PACK_SHORT_565(r, g, b); |
228 | |
|
229 | 0 | r = *inptr0++; |
230 | 0 | g = *inptr1++; |
231 | 0 | b = *inptr2++; |
232 | 0 | rgb = PACK_TWO_PIXELS(rgb, PACK_SHORT_565(r, g, b)); |
233 | |
|
234 | 0 | WRITE_TWO_ALIGNED_PIXELS(outptr, rgb); |
235 | 0 | outptr += 4; |
236 | 0 | } |
237 | 0 | if (num_cols & 1) { |
238 | 0 | r = *inptr0; |
239 | 0 | g = *inptr1; |
240 | 0 | b = *inptr2; |
241 | 0 | rgb = PACK_SHORT_565(r, g, b); |
242 | 0 | *(INT16 *)outptr = (INT16)rgb; |
243 | 0 | } |
244 | 0 | } |
245 | 0 | } Unexecuted instantiation: jdcolor.c:rgb_rgb565_convert_be Unexecuted instantiation: jdcolor.c:rgb_rgb565_convert_le |
246 | | |
247 | | |
248 | | INLINE |
249 | | LOCAL(void) |
250 | | rgb_rgb565D_convert_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf, |
251 | | JDIMENSION input_row, _JSAMPARRAY output_buf, |
252 | | int num_rows) |
253 | 0 | { |
254 | 0 | register _JSAMPROW outptr; |
255 | 0 | register _JSAMPROW inptr0, inptr1, inptr2; |
256 | 0 | register int row; |
257 | 0 | register JDIMENSION col; |
258 | 0 | register _JSAMPLE *range_limit = (_JSAMPLE *)cinfo->sample_range_limit; |
259 | 0 | SHIFT_TEMPS |
260 | |
|
261 | 0 | for (row = 0; row < num_rows; row++) { |
262 | 0 | JLONG rgb; |
263 | 0 | unsigned int r, g, b; |
264 | 0 | JDIMENSION num_cols = cinfo->output_width; |
265 | 0 | JLONG d0 = dither_matrix[(cinfo->output_scanline + row) & DITHER_MASK]; |
266 | |
|
267 | 0 | inptr0 = input_buf[0][input_row]; |
268 | 0 | inptr1 = input_buf[1][input_row]; |
269 | 0 | inptr2 = input_buf[2][input_row]; |
270 | 0 | input_row++; |
271 | 0 | outptr = *output_buf++; |
272 | 0 | if (PACK_NEED_ALIGNMENT(outptr)) { |
273 | 0 | r = range_limit[DITHER_565_R(*inptr0++, d0)]; |
274 | 0 | g = range_limit[DITHER_565_G(*inptr1++, d0)]; |
275 | 0 | b = range_limit[DITHER_565_B(*inptr2++, d0)]; |
276 | 0 | d0 = DITHER_ROTATE(d0); |
277 | 0 | rgb = PACK_SHORT_565(r, g, b); |
278 | 0 | *(INT16 *)outptr = (INT16)rgb; |
279 | 0 | outptr += 2; |
280 | 0 | num_cols--; |
281 | 0 | } |
282 | 0 | for (col = 0; col < (num_cols >> 1); col++) { |
283 | 0 | r = range_limit[DITHER_565_R(*inptr0++, d0)]; |
284 | 0 | g = range_limit[DITHER_565_G(*inptr1++, d0)]; |
285 | 0 | b = range_limit[DITHER_565_B(*inptr2++, d0)]; |
286 | 0 | d0 = DITHER_ROTATE(d0); |
287 | 0 | rgb = PACK_SHORT_565(r, g, b); |
288 | |
|
289 | 0 | r = range_limit[DITHER_565_R(*inptr0++, d0)]; |
290 | 0 | g = range_limit[DITHER_565_G(*inptr1++, d0)]; |
291 | 0 | b = range_limit[DITHER_565_B(*inptr2++, d0)]; |
292 | 0 | d0 = DITHER_ROTATE(d0); |
293 | 0 | rgb = PACK_TWO_PIXELS(rgb, PACK_SHORT_565(r, g, b)); |
294 | |
|
295 | 0 | WRITE_TWO_ALIGNED_PIXELS(outptr, rgb); |
296 | 0 | outptr += 4; |
297 | 0 | } |
298 | 0 | if (num_cols & 1) { |
299 | 0 | r = range_limit[DITHER_565_R(*inptr0, d0)]; |
300 | 0 | g = range_limit[DITHER_565_G(*inptr1, d0)]; |
301 | 0 | b = range_limit[DITHER_565_B(*inptr2, d0)]; |
302 | 0 | rgb = PACK_SHORT_565(r, g, b); |
303 | 0 | *(INT16 *)outptr = (INT16)rgb; |
304 | 0 | } |
305 | 0 | } |
306 | 0 | } Unexecuted instantiation: jdcolor.c:rgb_rgb565D_convert_be Unexecuted instantiation: jdcolor.c:rgb_rgb565D_convert_le |
307 | | |
308 | | |
309 | | INLINE |
310 | | LOCAL(void) |
311 | | gray_rgb565_convert_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf, |
312 | | JDIMENSION input_row, _JSAMPARRAY output_buf, |
313 | | int num_rows) |
314 | 0 | { |
315 | 0 | register _JSAMPROW inptr, outptr; |
316 | 0 | register JDIMENSION col; |
317 | |
|
318 | 0 | while (--num_rows >= 0) { |
319 | 0 | JLONG rgb; |
320 | 0 | unsigned int g; |
321 | 0 | JDIMENSION num_cols = cinfo->output_width; |
322 | |
|
323 | 0 | inptr = input_buf[0][input_row++]; |
324 | 0 | outptr = *output_buf++; |
325 | 0 | if (PACK_NEED_ALIGNMENT(outptr)) { |
326 | 0 | g = *inptr++; |
327 | 0 | rgb = PACK_SHORT_565(g, g, g); |
328 | 0 | *(INT16 *)outptr = (INT16)rgb; |
329 | 0 | outptr += 2; |
330 | 0 | num_cols--; |
331 | 0 | } |
332 | 0 | for (col = 0; col < (num_cols >> 1); col++) { |
333 | 0 | g = *inptr++; |
334 | 0 | rgb = PACK_SHORT_565(g, g, g); |
335 | 0 | g = *inptr++; |
336 | 0 | rgb = PACK_TWO_PIXELS(rgb, PACK_SHORT_565(g, g, g)); |
337 | 0 | WRITE_TWO_ALIGNED_PIXELS(outptr, rgb); |
338 | 0 | outptr += 4; |
339 | 0 | } |
340 | 0 | if (num_cols & 1) { |
341 | 0 | g = *inptr; |
342 | 0 | rgb = PACK_SHORT_565(g, g, g); |
343 | 0 | *(INT16 *)outptr = (INT16)rgb; |
344 | 0 | } |
345 | 0 | } |
346 | 0 | } Unexecuted instantiation: jdcolor.c:gray_rgb565_convert_be Unexecuted instantiation: jdcolor.c:gray_rgb565_convert_le |
347 | | |
348 | | |
349 | | INLINE |
350 | | LOCAL(void) |
351 | | gray_rgb565D_convert_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf, |
352 | | JDIMENSION input_row, _JSAMPARRAY output_buf, |
353 | | int num_rows) |
354 | 0 | { |
355 | 0 | register _JSAMPROW inptr, outptr; |
356 | 0 | register int row; |
357 | 0 | register JDIMENSION col; |
358 | 0 | register _JSAMPLE *range_limit = (_JSAMPLE *)cinfo->sample_range_limit; |
359 | |
|
360 | 0 | for (row = 0; row < num_rows; row++) { |
361 | 0 | JLONG rgb; |
362 | 0 | unsigned int g; |
363 | 0 | JDIMENSION num_cols = cinfo->output_width; |
364 | 0 | JLONG d0 = dither_matrix[(cinfo->output_scanline + row) & DITHER_MASK]; |
365 | |
|
366 | 0 | inptr = input_buf[0][input_row++]; |
367 | 0 | outptr = *output_buf++; |
368 | 0 | if (PACK_NEED_ALIGNMENT(outptr)) { |
369 | 0 | g = *inptr++; |
370 | 0 | g = range_limit[DITHER_565_R(g, d0)]; |
371 | 0 | d0 = DITHER_ROTATE(d0); |
372 | 0 | rgb = PACK_SHORT_565(g, g, g); |
373 | 0 | *(INT16 *)outptr = (INT16)rgb; |
374 | 0 | outptr += 2; |
375 | 0 | num_cols--; |
376 | 0 | } |
377 | 0 | for (col = 0; col < (num_cols >> 1); col++) { |
378 | 0 | g = *inptr++; |
379 | 0 | g = range_limit[DITHER_565_R(g, d0)]; |
380 | 0 | rgb = PACK_SHORT_565(g, g, g); |
381 | 0 | d0 = DITHER_ROTATE(d0); |
382 | |
|
383 | 0 | g = *inptr++; |
384 | 0 | g = range_limit[DITHER_565_R(g, d0)]; |
385 | 0 | rgb = PACK_TWO_PIXELS(rgb, PACK_SHORT_565(g, g, g)); |
386 | 0 | d0 = DITHER_ROTATE(d0); |
387 | |
|
388 | 0 | WRITE_TWO_ALIGNED_PIXELS(outptr, rgb); |
389 | 0 | outptr += 4; |
390 | 0 | } |
391 | 0 | if (num_cols & 1) { |
392 | 0 | g = *inptr; |
393 | 0 | g = range_limit[DITHER_565_R(g, d0)]; |
394 | 0 | rgb = PACK_SHORT_565(g, g, g); |
395 | 0 | *(INT16 *)outptr = (INT16)rgb; |
396 | 0 | } |
397 | 0 | } |
398 | 0 | } Unexecuted instantiation: jdcolor.c:gray_rgb565D_convert_be Unexecuted instantiation: jdcolor.c:gray_rgb565D_convert_le |