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authorFranklin Wei <git@fwei.tk>2018-02-07 20:04:46 -0500
committerFranklin Wei <git@fwei.tk>2018-03-12 20:52:01 -0400
commit6039eb05ba6d82ef56f2868c96654c552d117bf9 (patch)
tree9db7016bcbf66cfdf7b9bc998d84c6eaff9c8378 /apps/plugins/sdl/src/video/ataricommon/SDL_ataric2p.S
parentef373c03b96b0be08babca581d9f10bccfd4931f (diff)
downloadrockbox-6039eb05ba6d82ef56f2868c96654c552d117bf9.tar.gz
rockbox-6039eb05ba6d82ef56f2868c96654c552d117bf9.zip
sdl: remove non-rockbox drivers
We never use any of these other drivers, so having them around just takes up space. Change-Id: Iced812162df1fef3fd55522b7e700acb6c3bcd41
Diffstat (limited to 'apps/plugins/sdl/src/video/ataricommon/SDL_ataric2p.S')
-rw-r--r--apps/plugins/sdl/src/video/ataricommon/SDL_ataric2p.S452
1 files changed, 0 insertions, 452 deletions
diff --git a/apps/plugins/sdl/src/video/ataricommon/SDL_ataric2p.S b/apps/plugins/sdl/src/video/ataricommon/SDL_ataric2p.S
deleted file mode 100644
index 3cd1961b85..0000000000
--- a/apps/plugins/sdl/src/video/ataricommon/SDL_ataric2p.S
+++ /dev/null
@@ -1,452 +0,0 @@
1/*
2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997-2012 Sam Lantinga
4
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with this library; if not, write to the Free Software
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18
19 Sam Lantinga
20 slouken@libsdl.org
21*/
22
23/*
24 Chunky to planar conversion routine
25 1 byte/pixel -> 4 or 8 bit planes
26
27 Patrice Mandin
28 Xavier Joubert
29 Mikael Kalms
30*/
31
32 .globl _SDL_Atari_C2pConvert
33 .globl _SDL_Atari_C2pConvert8
34 .globl _SDL_Atari_C2pConvert4
35 .globl _SDL_Atari_C2pConvert4_pal
36
37/* ------------ Conversion C2P, 8 bits ------------ */
38
39 .text
40_SDL_Atari_C2pConvert8:
41#if !defined(__mcoldfire__)
42 movel sp@(4),c2p_source
43 movel sp@(8),c2p_dest
44 movel sp@(12),c2p_width
45 movel sp@(16),c2p_height
46 movel sp@(20),c2p_dblligne
47 movel sp@(24),c2p_srcpitch
48 movel sp@(28),c2p_dstpitch
49
50 moveml d2-d7/a2-a6,sp@-
51
52 movel c2p_source,c2p_cursrc
53 movel c2p_dest,c2p_curdst
54 movel #0x0f0f0f0f,d4
55 movel #0x00ff00ff,d5
56 movel #0x55555555,d6
57 movew c2p_height+2,c2p_row
58 movew c2p_width+2,d0
59 andw #-8,d0
60 movew d0,c2p_rowlen
61
62SDL_Atari_C2p8_rowloop:
63
64 movel c2p_cursrc,a0
65 movel c2p_curdst,a1
66
67 movel a0,a2
68 addw c2p_rowlen,a2
69
70 movel a0@+,d0
71 movel a0@+,d1
72 movel a0@+,d2
73 movel a0@+,d3
74/*
75 d0 = a7a6a5a4a3a2a1a0 b7b6b5b4b3b2b1b0 c7c6c5c4c3c2c1c0 d7d6d5d4d3d2d1d0
76 d1 = e7e6e5e4e3e2e1e0 f7f6f5f4f3f2f1f0 g7g6g5g4g3g2g1g0 h7h6h5h4h3h2h1h0
77 d2 = i7i6i5i4i3i2i1i0 j7j6j5j4j3j2j1j0 k7k6k5k4k3k2k1k0 l7l6l5l4l3l2l1l0
78 d3 = m7m6m5m4m3m2m1m0 n7n6n5n4n3n2n1n0 o7o6o5o4o3o2o1o0 p7p6p5p4p3p2p1p0
79*/
80 movel d1,d7
81 lsrl #4,d7
82 eorl d0,d7
83 andl d4,d7
84 eorl d7,d0
85 lsll #4,d7
86 eorl d7,d1
87
88 movel d3,d7
89 lsrl #4,d7
90 eorl d2,d7
91 andl d4,d7
92 eorl d7,d2
93 lsll #4,d7
94 eorl d7,d3
95
96 movel d2,d7
97 lsrl #8,d7
98 eorl d0,d7
99 andl d5,d7
100 eorl d7,d0
101 lsll #8,d7
102 eorl d7,d2
103
104 movel d3,d7
105 lsrl #8,d7
106 eorl d1,d7
107 andl d5,d7
108 eorl d7,d1
109 lsll #8,d7
110 eorl d7,d3
111/*
112 d0 = a7a6a5a4e7e6e5e4 i7i6i5i4m7m6m5m4 c7c6c5c4g7g6g5g4 k7k6k5k4o7o6o5o4
113 d1 = a3a2a1a0e3e2e1e0 i3i2i1i0m3m2m1m0 c3c2c1c0g3g2g1g0 k3k2k1k0o3o2o1o0
114 d2 = b7b6b5b4f7f6f5f4 j7j6j5j4n7n6n5n4 d7d6d5d4h7h6h5h4 l7l6l5l4p7p6p5p4
115 d3 = b3b2b1b0f3f2f1f0 j3j2j1j0n3n2n1n0 d3d2d1d0h3h2h1h0 l3l2l1l0p3p2p1p0
116*/
117 bras SDL_Atari_C2p8_start
118
119SDL_Atari_C2p8_pix16:
120
121 movel a0@+,d0
122 movel a0@+,d1
123 movel a0@+,d2
124 movel a0@+,d3
125/*
126 d0 = a7a6a5a4a3a2a1a0 b7b6b5b4b3b2b1b0 c7c6c5c4c3c2c1c0 d7d6d5d4d3d2d1d0
127 d1 = e7e6e5e4e3e2e1e0 f7f6f5f4f3f2f1f0 g7g6g5g4g3g2g1g0 h7h6h5h4h3h2h1h0
128 d2 = i7i6i5i4i3i2i1i0 j7j6j5j4j3j2j1j0 k7k6k5k4k3k2k1k0 l7l6l5l4l3l2l1l0
129 d3 = m7m6m5m4m3m2m1m0 n7n6n5n4n3n2n1n0 o7o6o5o4o3o2o1o0 p7p6p5p4p3p2p1p0
130*/
131 movel d1,d7
132 lsrl #4,d7
133 movel a3,a1@+
134 eorl d0,d7
135 andl d4,d7
136 eorl d7,d0
137 lsll #4,d7
138 eorl d7,d1
139
140 movel d3,d7
141 lsrl #4,d7
142 eorl d2,d7
143 andl d4,d7
144 eorl d7,d2
145 movel a4,a1@+
146 lsll #4,d7
147 eorl d7,d3
148
149 movel d2,d7
150 lsrl #8,d7
151 eorl d0,d7
152 andl d5,d7
153 eorl d7,d0
154 movel a5,a1@+
155 lsll #8,d7
156 eorl d7,d2
157
158 movel d3,d7
159 lsrl #8,d7
160 eorl d1,d7
161 andl d5,d7
162 eorl d7,d1
163 movel a6,a1@+
164 lsll #8,d7
165 eorl d7,d3
166/*
167 d0 = a7a6a5a4e7e6e5e4 i7i6i5i4m7m6m5m4 c7c6c5c4g7g6g5g4 k7k6k5k4o7o6o5o4
168 d1 = a3a2a1a0e3e2e1e0 i3i2i1i0m3m2m1m0 c3c2c1c0g3g2g1g0 k3k2k1k0o3o2o1o0
169 d2 = b7b6b5b4f7f6f5f4 j7j6j5j4n7n6n5n4 d7d6d5d4h7h6h5h4 l7l6l5l4p7p6p5p4
170 d3 = b3b2b1b0f3f2f1f0 j3j2j1j0n3n2n1n0 d3d2d1d0h3h2h1h0 l3l2l1l0p3p2p1p0
171*/
172
173SDL_Atari_C2p8_start:
174
175 movel d2,d7
176 lsrl #1,d7
177 eorl d0,d7
178 andl d6,d7
179 eorl d7,d0
180 addl d7,d7
181 eorl d7,d2
182
183 movel d3,d7
184 lsrl #1,d7
185 eorl d1,d7
186 andl d6,d7
187 eorl d7,d1
188 addl d7,d7
189 eorl d7,d3
190/*
191 d0 = a7b7a5b5e7f7e5f5 i7j7i5j5m7n7m5n5 c7d7c5d5g7h7g5h5 k7l7k5l5o7p7o5p5
192 d1 = a3b3a1b1e3f3e1f1 i3j3i1j1m3n3m1n1 c3d3c1d1g3h3g1h1 k3l3k1l1o3p3o1p1
193 d2 = a6b6a4b4e6f6e4f4 i6j6i4j4m6n6m4n4 c6d6c4d4g6h6g4h4 k6l6k4l4o6p6o4p4
194 d3 = a2b2a0b0e2f2e0f0 i2j2i0j0m2n2m0n0 c2d2c0d0g2h2g0h0 k2l2k0l0o2p2o0p0
195*/
196 movew d2,d7
197 movew d0,d2
198 swap d2
199 movew d2,d0
200 movew d7,d2
201
202 movew d3,d7
203 movew d1,d3
204 swap d3
205 movew d3,d1
206 movew d7,d3
207/*
208 d0 = a7b7a5b5e7f7e5f5 i7j7i5j5m7n7m5n5 a6b6a4b4e6f6e4f4 i6j6i4j4m6n6m4n4
209 d1 = a3b3a1b1e3f3e1f1 i3j3i1j1m3n3m1n1 a2b2a0b0e2f2e0f0 i2j2i0j0m2n2m0n0
210 d2 = c7d7c5d5g7h7g5h5 k7l7k5l5o7p7o5p5 c6d6c4d4g6h6g4h4 k6l6k4l4o6p6o4p4
211 d3 = c3d3c1d1g3h3g1h1 k3l3k1l1o3p3o1p1 c2d2c0d0g2h2g0h0 k2l2k0l0o2p2o0p0
212*/
213 movel d2,d7
214 lsrl #2,d7
215 eorl d0,d7
216 andl #0x33333333,d7
217 eorl d7,d0
218 lsll #2,d7
219 eorl d7,d2
220
221 movel d3,d7
222 lsrl #2,d7
223 eorl d1,d7
224 andl #0x33333333,d7
225 eorl d7,d1
226 lsll #2,d7
227 eorl d7,d3
228/*
229 d0 = a7b7c7d7e7f7g7h7 i7j7k7l7m7n7o7p7 a6b6c6d6e6f6g6h6 i6j6k6l6m6n6o6p6
230 d1 = a3b3c3d3e3f3g3h3 i3j3k3l3m3n3o3p3 a2b2c2d2e2f2g2h2 i2j2k2l2m2n2o2p2
231 d2 = a5b5c5d5e5f5g5h5 i5j5k5l5m5n5o5p5 a4b4c4d4e4f4g4h4 i4j4k4l4m4n4o4p4
232 d3 = a1b1c1d1e1f1g1h1 i1j1k1l1m1n1o1p1 a0b0c0d0e0f0g0h0 i0j0k0l0m0n0o0p0
233*/
234 swap d0
235 swap d1
236 swap d2
237 swap d3
238
239 movel d0,a6
240 movel d2,a5
241 movel d1,a4
242 movel d3,a3
243
244 cmpl a0,a2
245 bgt SDL_Atari_C2p8_pix16
246
247 movel a3,a1@+
248 movel a4,a1@+
249 movel a5,a1@+
250 movel a6,a1@+
251
252 /* Double the line ? */
253
254 movel c2p_srcpitch,d0
255 movel c2p_dstpitch,d1
256
257 tstl c2p_dblligne
258 beqs SDL_Atari_C2p8_nodblline
259
260 movel c2p_curdst,a0
261 movel a0,a1
262 addl d1,a1
263
264 movew c2p_width+2,d7
265 lsrw #4,d7
266 subql #1,d7
267SDL_Atari_C2p8_dblloop:
268 movel a0@+,a1@+
269 movel a0@+,a1@+
270 movel a0@+,a1@+
271 movel a0@+,a1@+
272 dbra d7,SDL_Atari_C2p8_dblloop
273
274 addl d1,c2p_curdst
275
276SDL_Atari_C2p8_nodblline:
277
278 /* Next line */
279
280 addl d0,c2p_cursrc
281 addl d1,c2p_curdst
282
283 subqw #1,c2p_row
284 bne SDL_Atari_C2p8_rowloop
285
286 moveml sp@+,d2-d7/a2-a6
287#endif
288 rts
289
290/* ------------ Conversion C2P, 4 bits ------------ */
291
292_SDL_Atari_C2pConvert4:
293#if !defined(__mcoldfire__)
294 movel sp@(4),c2p_source
295 movel sp@(8),c2p_dest
296 movel sp@(12),c2p_width
297 movel sp@(16),c2p_height
298 movel sp@(20),c2p_dblligne
299 movel sp@(24),c2p_srcpitch
300 movel sp@(28),c2p_dstpitch
301
302 moveml d2-d7/a2-a6,sp@-
303
304 movel c2p_source,a0
305 movel c2p_dest,a1
306 lea _SDL_Atari_table_c2p,a2
307 movel #0x00070001,d3
308#if defined(__mc68020__)
309 moveq #0,d0
310#endif
311
312 movel c2p_height,d7
313 subql #1,d7
314c2p4_bcly:
315 movel a0,a4 | Save start address of source
316 movel a1,a5 | Save start address of dest
317
318 | Conversion
319
320 movel c2p_width,d6
321 lsrw #4,d6
322 subql #1,d6
323c2p4_bclx:
324 | Octets 0-7
325
326 moveq #0,d1
327 moveq #7,d5
328c2p4_bcl07:
329#if defined(__mc68020__)
330 moveb a0@+,d0
331 lea a2@(0,d0:w:4),a3
332#else
333 moveq #0,d0
334 moveb a0@+,d0
335 lslw #2,d0
336 lea a2@(0,d0:w),a3
337#endif
338 lsll #1,d1
339 orl a3@,d1
340 dbra d5,c2p4_bcl07
341
342 movepl d1,a1@(0)
343 addw d3,a1
344 swap d3
345
346 | Octets 8-15
347
348 moveq #0,d1
349 moveq #7,d5
350c2p4_bcl815:
351#if defined(__mc68020__)
352 moveb a0@+,d0
353 lea a2@(0,d0:w:4),a3
354#else
355 moveq #0,d0
356 moveb a0@+,d0
357 lslw #2,d0
358 lea a2@(0,d0:w),a3
359#endif
360 lsll #1,d1
361 orl a3@,d1
362 dbra d5,c2p4_bcl815
363
364 movepl d1,a1@(0)
365 addw d3,a1
366 swap d3
367
368 dbra d6,c2p4_bclx
369
370 | Double line ?
371
372 tstl c2p_dblligne
373 beqs c2p4_nodblligne
374
375 movel a5,a6 | src line
376 movel a5,a1 | dest line
377 addl c2p_dstpitch,a1
378
379 movel c2p_width,d6
380 lsrw #3,d6
381 subql #1,d6
382c2p4_copydbl:
383 movel a6@+,a1@+
384 dbra d6,c2p4_copydbl
385
386 addl c2p_dstpitch,a5
387c2p4_nodblligne:
388
389 | Next line
390
391 movel a4,a0
392 addl c2p_srcpitch,a0
393 movel a5,a1
394 addl c2p_dstpitch,a1
395
396 dbra d7,c2p4_bcly
397
398 moveml sp@+,d2-d7/a2-a6
399#endif
400 rts
401
402/* ------------ Conversion of a light palette in 4 bits ------------ */
403
404_SDL_Atari_C2pConvert4_pal:
405#if !defined(__mcoldfire__)
406 /* a0 is a 256-word light palette */
407 movel sp@(4),a0
408
409 moveml d2-d3,sp@-
410
411 lea _SDL_Atari_table_c2p,a1
412 movew #255,d3
413c2p_pal_initbcl:
414 movew a0@+,d0
415 lsrw #4,d0
416 andw #15,d0
417
418 moveq #3,d1
419c2p_pal_initbyte:
420 btst d1,d0
421 sne d2
422 negw d2
423 moveb d2,a1@(0,d1:w)
424
425 dbra d1,c2p_pal_initbyte
426
427 addql #4,a1
428 dbra d3,c2p_pal_initbcl
429
430 moveml sp@+,d2-d3
431#endif
432 rts
433
434/* ------------ Buffers ------------ */
435
436 .bss
437
438 .even
439 .comm _SDL_Atari_C2pConvert,4
440 .comm _SDL_Atari_table_c2p,1024
441
442 .comm c2p_source,4 /* Source framebuffer */
443 .comm c2p_dest,4 /* Destination framebuffer */
444 .comm c2p_width,4 /* Width of zone to convert */
445 .comm c2p_height,4 /* Height of zone to convert */
446 .comm c2p_dblligne,4 /* Double the lines while converting ? */
447 .comm c2p_srcpitch,4 /* Source pitch */
448 .comm c2p_dstpitch,4 /* Destination pitch */
449 .comm c2p_cursrc,4 /* Current source line */
450 .comm c2p_curdst,4 /* Current destination line */
451 .comm c2p_rowlen,2 /* Line length in bytes */
452 .comm c2p_row,2 /* Current line number */
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-30 19:34:47 +0000