/src/libjpeg-turbo.main/jdcol565.c
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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, 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 | 0 | JDIMENSION num_cols = cinfo->output_width; |
31 | | /* copy these pointers into registers if possible */ |
32 | 0 | register _JSAMPLE *range_limit = (_JSAMPLE *)cinfo->sample_range_limit; |
33 | 0 | register int *Crrtab = cconvert->Cr_r_tab; |
34 | 0 | register int *Cbbtab = cconvert->Cb_b_tab; |
35 | 0 | register JLONG *Crgtab = cconvert->Cr_g_tab; |
36 | 0 | register JLONG *Cbgtab = cconvert->Cb_g_tab; |
37 | 0 | SHIFT_TEMPS |
38 | |
|
39 | 0 | while (--num_rows >= 0) { |
40 | 0 | JLONG rgb; |
41 | 0 | unsigned int r, g, b; |
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 JDIMENSION col; |
113 | 0 | JDIMENSION num_cols = cinfo->output_width; |
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 | JLONG d0 = dither_matrix[cinfo->output_scanline & DITHER_MASK]; |
121 | 0 | SHIFT_TEMPS |
122 | |
|
123 | 0 | while (--num_rows >= 0) { |
124 | 0 | JLONG rgb; |
125 | 0 | unsigned int r, g, b; |
126 | |
|
127 | 0 | inptr0 = input_buf[0][input_row]; |
128 | 0 | inptr1 = input_buf[1][input_row]; |
129 | 0 | inptr2 = input_buf[2][input_row]; |
130 | 0 | input_row++; |
131 | 0 | outptr = *output_buf++; |
132 | 0 | if (PACK_NEED_ALIGNMENT(outptr)) { |
133 | 0 | y = *inptr0++; |
134 | 0 | cb = *inptr1++; |
135 | 0 | cr = *inptr2++; |
136 | 0 | r = range_limit[DITHER_565_R(y + Crrtab[cr], d0)]; |
137 | 0 | g = range_limit[DITHER_565_G(y + |
138 | 0 | ((int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], |
139 | 0 | SCALEBITS)), d0)]; |
140 | 0 | b = range_limit[DITHER_565_B(y + Cbbtab[cb], d0)]; |
141 | 0 | rgb = PACK_SHORT_565(r, g, b); |
142 | 0 | *(INT16 *)outptr = (INT16)rgb; |
143 | 0 | outptr += 2; |
144 | 0 | num_cols--; |
145 | 0 | } |
146 | 0 | for (col = 0; col < (num_cols >> 1); col++) { |
147 | 0 | y = *inptr0++; |
148 | 0 | cb = *inptr1++; |
149 | 0 | cr = *inptr2++; |
150 | 0 | r = range_limit[DITHER_565_R(y + Crrtab[cr], d0)]; |
151 | 0 | g = range_limit[DITHER_565_G(y + |
152 | 0 | ((int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], |
153 | 0 | SCALEBITS)), d0)]; |
154 | 0 | b = range_limit[DITHER_565_B(y + Cbbtab[cb], d0)]; |
155 | 0 | d0 = DITHER_ROTATE(d0); |
156 | 0 | rgb = PACK_SHORT_565(r, g, b); |
157 | |
|
158 | 0 | y = *inptr0++; |
159 | 0 | cb = *inptr1++; |
160 | 0 | cr = *inptr2++; |
161 | 0 | r = range_limit[DITHER_565_R(y + Crrtab[cr], d0)]; |
162 | 0 | g = range_limit[DITHER_565_G(y + |
163 | 0 | ((int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], |
164 | 0 | SCALEBITS)), d0)]; |
165 | 0 | b = range_limit[DITHER_565_B(y + Cbbtab[cb], d0)]; |
166 | 0 | d0 = DITHER_ROTATE(d0); |
167 | 0 | rgb = PACK_TWO_PIXELS(rgb, PACK_SHORT_565(r, g, b)); |
168 | |
|
169 | 0 | WRITE_TWO_ALIGNED_PIXELS(outptr, rgb); |
170 | 0 | outptr += 4; |
171 | 0 | } |
172 | 0 | if (num_cols & 1) { |
173 | 0 | y = *inptr0; |
174 | 0 | cb = *inptr1; |
175 | 0 | cr = *inptr2; |
176 | 0 | r = range_limit[DITHER_565_R(y + Crrtab[cr], d0)]; |
177 | 0 | g = range_limit[DITHER_565_G(y + |
178 | 0 | ((int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], |
179 | 0 | SCALEBITS)), d0)]; |
180 | 0 | b = range_limit[DITHER_565_B(y + Cbbtab[cb], d0)]; |
181 | 0 | rgb = PACK_SHORT_565(r, g, b); |
182 | 0 | *(INT16 *)outptr = (INT16)rgb; |
183 | 0 | } |
184 | 0 | } |
185 | | #else |
186 | | ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); |
187 | | #endif |
188 | 0 | } Unexecuted instantiation: jdcolor.c:ycc_rgb565D_convert_be Unexecuted instantiation: jdcolor.c:ycc_rgb565D_convert_le |
189 | | |
190 | | |
191 | | INLINE |
192 | | LOCAL(void) |
193 | | rgb_rgb565_convert_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf, |
194 | | JDIMENSION input_row, _JSAMPARRAY output_buf, |
195 | | int num_rows) |
196 | 0 | { |
197 | 0 | register _JSAMPROW outptr; |
198 | 0 | register _JSAMPROW inptr0, inptr1, inptr2; |
199 | 0 | register JDIMENSION col; |
200 | 0 | JDIMENSION num_cols = cinfo->output_width; |
201 | 0 | SHIFT_TEMPS |
202 | |
|
203 | 0 | while (--num_rows >= 0) { |
204 | 0 | JLONG rgb; |
205 | 0 | unsigned int r, g, b; |
206 | |
|
207 | 0 | inptr0 = input_buf[0][input_row]; |
208 | 0 | inptr1 = input_buf[1][input_row]; |
209 | 0 | inptr2 = input_buf[2][input_row]; |
210 | 0 | input_row++; |
211 | 0 | outptr = *output_buf++; |
212 | 0 | if (PACK_NEED_ALIGNMENT(outptr)) { |
213 | 0 | r = *inptr0++; |
214 | 0 | g = *inptr1++; |
215 | 0 | b = *inptr2++; |
216 | 0 | rgb = PACK_SHORT_565(r, g, b); |
217 | 0 | *(INT16 *)outptr = (INT16)rgb; |
218 | 0 | outptr += 2; |
219 | 0 | num_cols--; |
220 | 0 | } |
221 | 0 | for (col = 0; col < (num_cols >> 1); col++) { |
222 | 0 | r = *inptr0++; |
223 | 0 | g = *inptr1++; |
224 | 0 | b = *inptr2++; |
225 | 0 | rgb = PACK_SHORT_565(r, g, b); |
226 | |
|
227 | 0 | r = *inptr0++; |
228 | 0 | g = *inptr1++; |
229 | 0 | b = *inptr2++; |
230 | 0 | rgb = PACK_TWO_PIXELS(rgb, PACK_SHORT_565(r, g, b)); |
231 | |
|
232 | 0 | WRITE_TWO_ALIGNED_PIXELS(outptr, rgb); |
233 | 0 | outptr += 4; |
234 | 0 | } |
235 | 0 | if (num_cols & 1) { |
236 | 0 | r = *inptr0; |
237 | 0 | g = *inptr1; |
238 | 0 | b = *inptr2; |
239 | 0 | rgb = PACK_SHORT_565(r, g, b); |
240 | 0 | *(INT16 *)outptr = (INT16)rgb; |
241 | 0 | } |
242 | 0 | } |
243 | 0 | } Unexecuted instantiation: jdcolor.c:rgb_rgb565_convert_be Unexecuted instantiation: jdcolor.c:rgb_rgb565_convert_le |
244 | | |
245 | | |
246 | | INLINE |
247 | | LOCAL(void) |
248 | | rgb_rgb565D_convert_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf, |
249 | | JDIMENSION input_row, _JSAMPARRAY output_buf, |
250 | | int num_rows) |
251 | 0 | { |
252 | 0 | register _JSAMPROW outptr; |
253 | 0 | register _JSAMPROW inptr0, inptr1, inptr2; |
254 | 0 | register JDIMENSION col; |
255 | 0 | register _JSAMPLE *range_limit = (_JSAMPLE *)cinfo->sample_range_limit; |
256 | 0 | JDIMENSION num_cols = cinfo->output_width; |
257 | 0 | JLONG d0 = dither_matrix[cinfo->output_scanline & DITHER_MASK]; |
258 | 0 | SHIFT_TEMPS |
259 | |
|
260 | 0 | while (--num_rows >= 0) { |
261 | 0 | JLONG rgb; |
262 | 0 | unsigned int r, g, b; |
263 | |
|
264 | 0 | inptr0 = input_buf[0][input_row]; |
265 | 0 | inptr1 = input_buf[1][input_row]; |
266 | 0 | inptr2 = input_buf[2][input_row]; |
267 | 0 | input_row++; |
268 | 0 | outptr = *output_buf++; |
269 | 0 | if (PACK_NEED_ALIGNMENT(outptr)) { |
270 | 0 | r = range_limit[DITHER_565_R(*inptr0++, d0)]; |
271 | 0 | g = range_limit[DITHER_565_G(*inptr1++, d0)]; |
272 | 0 | b = range_limit[DITHER_565_B(*inptr2++, d0)]; |
273 | 0 | rgb = PACK_SHORT_565(r, g, b); |
274 | 0 | *(INT16 *)outptr = (INT16)rgb; |
275 | 0 | outptr += 2; |
276 | 0 | num_cols--; |
277 | 0 | } |
278 | 0 | for (col = 0; col < (num_cols >> 1); col++) { |
279 | 0 | r = range_limit[DITHER_565_R(*inptr0++, d0)]; |
280 | 0 | g = range_limit[DITHER_565_G(*inptr1++, d0)]; |
281 | 0 | b = range_limit[DITHER_565_B(*inptr2++, d0)]; |
282 | 0 | d0 = DITHER_ROTATE(d0); |
283 | 0 | rgb = PACK_SHORT_565(r, g, b); |
284 | |
|
285 | 0 | r = range_limit[DITHER_565_R(*inptr0++, d0)]; |
286 | 0 | g = range_limit[DITHER_565_G(*inptr1++, d0)]; |
287 | 0 | b = range_limit[DITHER_565_B(*inptr2++, d0)]; |
288 | 0 | d0 = DITHER_ROTATE(d0); |
289 | 0 | rgb = PACK_TWO_PIXELS(rgb, PACK_SHORT_565(r, g, b)); |
290 | |
|
291 | 0 | WRITE_TWO_ALIGNED_PIXELS(outptr, rgb); |
292 | 0 | outptr += 4; |
293 | 0 | } |
294 | 0 | if (num_cols & 1) { |
295 | 0 | r = range_limit[DITHER_565_R(*inptr0, d0)]; |
296 | 0 | g = range_limit[DITHER_565_G(*inptr1, d0)]; |
297 | 0 | b = range_limit[DITHER_565_B(*inptr2, d0)]; |
298 | 0 | rgb = PACK_SHORT_565(r, g, b); |
299 | 0 | *(INT16 *)outptr = (INT16)rgb; |
300 | 0 | } |
301 | 0 | } |
302 | 0 | } Unexecuted instantiation: jdcolor.c:rgb_rgb565D_convert_be Unexecuted instantiation: jdcolor.c:rgb_rgb565D_convert_le |
303 | | |
304 | | |
305 | | INLINE |
306 | | LOCAL(void) |
307 | | gray_rgb565_convert_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf, |
308 | | JDIMENSION input_row, _JSAMPARRAY output_buf, |
309 | | int num_rows) |
310 | 0 | { |
311 | 0 | register _JSAMPROW inptr, outptr; |
312 | 0 | register JDIMENSION col; |
313 | 0 | JDIMENSION num_cols = cinfo->output_width; |
314 | |
|
315 | 0 | while (--num_rows >= 0) { |
316 | 0 | JLONG rgb; |
317 | 0 | unsigned int g; |
318 | |
|
319 | 0 | inptr = input_buf[0][input_row++]; |
320 | 0 | outptr = *output_buf++; |
321 | 0 | if (PACK_NEED_ALIGNMENT(outptr)) { |
322 | 0 | g = *inptr++; |
323 | 0 | rgb = PACK_SHORT_565(g, g, g); |
324 | 0 | *(INT16 *)outptr = (INT16)rgb; |
325 | 0 | outptr += 2; |
326 | 0 | num_cols--; |
327 | 0 | } |
328 | 0 | for (col = 0; col < (num_cols >> 1); col++) { |
329 | 0 | g = *inptr++; |
330 | 0 | rgb = PACK_SHORT_565(g, g, g); |
331 | 0 | g = *inptr++; |
332 | 0 | rgb = PACK_TWO_PIXELS(rgb, PACK_SHORT_565(g, g, g)); |
333 | 0 | WRITE_TWO_ALIGNED_PIXELS(outptr, rgb); |
334 | 0 | outptr += 4; |
335 | 0 | } |
336 | 0 | if (num_cols & 1) { |
337 | 0 | g = *inptr; |
338 | 0 | rgb = PACK_SHORT_565(g, g, g); |
339 | 0 | *(INT16 *)outptr = (INT16)rgb; |
340 | 0 | } |
341 | 0 | } |
342 | 0 | } Unexecuted instantiation: jdcolor.c:gray_rgb565_convert_be Unexecuted instantiation: jdcolor.c:gray_rgb565_convert_le |
343 | | |
344 | | |
345 | | INLINE |
346 | | LOCAL(void) |
347 | | gray_rgb565D_convert_internal(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf, |
348 | | JDIMENSION input_row, _JSAMPARRAY output_buf, |
349 | | int num_rows) |
350 | 0 | { |
351 | 0 | register _JSAMPROW inptr, outptr; |
352 | 0 | register JDIMENSION col; |
353 | 0 | register _JSAMPLE *range_limit = (_JSAMPLE *)cinfo->sample_range_limit; |
354 | 0 | JDIMENSION num_cols = cinfo->output_width; |
355 | 0 | JLONG d0 = dither_matrix[cinfo->output_scanline & DITHER_MASK]; |
356 | |
|
357 | 0 | while (--num_rows >= 0) { |
358 | 0 | JLONG rgb; |
359 | 0 | unsigned int g; |
360 | |
|
361 | 0 | inptr = input_buf[0][input_row++]; |
362 | 0 | outptr = *output_buf++; |
363 | 0 | if (PACK_NEED_ALIGNMENT(outptr)) { |
364 | 0 | g = *inptr++; |
365 | 0 | g = range_limit[DITHER_565_R(g, d0)]; |
366 | 0 | rgb = PACK_SHORT_565(g, g, g); |
367 | 0 | *(INT16 *)outptr = (INT16)rgb; |
368 | 0 | outptr += 2; |
369 | 0 | num_cols--; |
370 | 0 | } |
371 | 0 | for (col = 0; col < (num_cols >> 1); col++) { |
372 | 0 | g = *inptr++; |
373 | 0 | g = range_limit[DITHER_565_R(g, d0)]; |
374 | 0 | rgb = PACK_SHORT_565(g, g, g); |
375 | 0 | d0 = DITHER_ROTATE(d0); |
376 | |
|
377 | 0 | g = *inptr++; |
378 | 0 | g = range_limit[DITHER_565_R(g, d0)]; |
379 | 0 | rgb = PACK_TWO_PIXELS(rgb, PACK_SHORT_565(g, g, g)); |
380 | 0 | d0 = DITHER_ROTATE(d0); |
381 | |
|
382 | 0 | WRITE_TWO_ALIGNED_PIXELS(outptr, rgb); |
383 | 0 | outptr += 4; |
384 | 0 | } |
385 | 0 | if (num_cols & 1) { |
386 | 0 | g = *inptr; |
387 | 0 | g = range_limit[DITHER_565_R(g, d0)]; |
388 | 0 | rgb = PACK_SHORT_565(g, g, g); |
389 | 0 | *(INT16 *)outptr = (INT16)rgb; |
390 | 0 | } |
391 | 0 | } |
392 | 0 | } Unexecuted instantiation: jdcolor.c:gray_rgb565D_convert_be Unexecuted instantiation: jdcolor.c:gray_rgb565D_convert_le |