1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
|
/*
* Arm PrimeCell PL110 Color LCD Controller
*
* Copyright (c) 2005 CodeSourcery, LLC.
* Written by Paul Brook
*
* This code is licensed under the GNU LGPL
*
* Framebuffer format conversion routines.
*/
#ifndef ORDER
#if BITS == 8
#define COPY_PIXEL(to, from) *(to++) = from
#elif BITS == 15 || BITS == 16
#define COPY_PIXEL(to, from) *(uint16_t *)to = from; to += 2;
#elif BITS == 24
#define COPY_PIXEL(to, from) \
*(to++) = from; *(to++) = (from) >> 8; *(to++) = (from) >> 16
#elif BITS == 32
#define COPY_PIXEL(to, from) *(uint32_t *)to = from; to += 4;
#else
#error unknown bit depth
#endif
#undef RGB
#define BORDER bgr
#define ORDER 0
#include "pl110_template.h"
#define ORDER 1
#include "pl110_template.h"
#define ORDER 2
#include "pl110_template.h"
#undef BORDER
#define RGB
#define BORDER rgb
#define ORDER 0
#include "pl110_template.h"
#define ORDER 1
#include "pl110_template.h"
#define ORDER 2
#include "pl110_template.h"
#undef BORDER
static drawfn glue(pl110_draw_fn_,BITS)[48] =
{
glue(pl110_draw_line1_lblp_bgr,BITS),
glue(pl110_draw_line2_lblp_bgr,BITS),
glue(pl110_draw_line4_lblp_bgr,BITS),
glue(pl110_draw_line8_lblp_bgr,BITS),
glue(pl110_draw_line16_555_lblp_bgr,BITS),
glue(pl110_draw_line32_lblp_bgr,BITS),
glue(pl110_draw_line16_lblp_bgr,BITS),
glue(pl110_draw_line12_lblp_bgr,BITS),
glue(pl110_draw_line1_bbbp_bgr,BITS),
glue(pl110_draw_line2_bbbp_bgr,BITS),
glue(pl110_draw_line4_bbbp_bgr,BITS),
glue(pl110_draw_line8_bbbp_bgr,BITS),
glue(pl110_draw_line16_555_bbbp_bgr,BITS),
glue(pl110_draw_line32_bbbp_bgr,BITS),
glue(pl110_draw_line16_bbbp_bgr,BITS),
glue(pl110_draw_line12_bbbp_bgr,BITS),
glue(pl110_draw_line1_lbbp_bgr,BITS),
glue(pl110_draw_line2_lbbp_bgr,BITS),
glue(pl110_draw_line4_lbbp_bgr,BITS),
glue(pl110_draw_line8_lbbp_bgr,BITS),
glue(pl110_draw_line16_555_lbbp_bgr,BITS),
glue(pl110_draw_line32_lbbp_bgr,BITS),
glue(pl110_draw_line16_lbbp_bgr,BITS),
glue(pl110_draw_line12_lbbp_bgr,BITS),
glue(pl110_draw_line1_lblp_rgb,BITS),
glue(pl110_draw_line2_lblp_rgb,BITS),
glue(pl110_draw_line4_lblp_rgb,BITS),
glue(pl110_draw_line8_lblp_rgb,BITS),
glue(pl110_draw_line16_555_lblp_rgb,BITS),
glue(pl110_draw_line32_lblp_rgb,BITS),
glue(pl110_draw_line16_lblp_rgb,BITS),
glue(pl110_draw_line12_lblp_rgb,BITS),
glue(pl110_draw_line1_bbbp_rgb,BITS),
glue(pl110_draw_line2_bbbp_rgb,BITS),
glue(pl110_draw_line4_bbbp_rgb,BITS),
glue(pl110_draw_line8_bbbp_rgb,BITS),
glue(pl110_draw_line16_555_bbbp_rgb,BITS),
glue(pl110_draw_line32_bbbp_rgb,BITS),
glue(pl110_draw_line16_bbbp_rgb,BITS),
glue(pl110_draw_line12_bbbp_rgb,BITS),
glue(pl110_draw_line1_lbbp_rgb,BITS),
glue(pl110_draw_line2_lbbp_rgb,BITS),
glue(pl110_draw_line4_lbbp_rgb,BITS),
glue(pl110_draw_line8_lbbp_rgb,BITS),
glue(pl110_draw_line16_555_lbbp_rgb,BITS),
glue(pl110_draw_line32_lbbp_rgb,BITS),
glue(pl110_draw_line16_lbbp_rgb,BITS),
glue(pl110_draw_line12_lbbp_rgb,BITS),
};
#undef BITS
#undef COPY_PIXEL
#else
#if ORDER == 0
#define NAME glue(glue(lblp_, BORDER), BITS)
#ifdef HOST_WORDS_BIGENDIAN
#define SWAP_WORDS 1
#endif
#elif ORDER == 1
#define NAME glue(glue(bbbp_, BORDER), BITS)
#ifndef HOST_WORDS_BIGENDIAN
#define SWAP_WORDS 1
#endif
#else
#define SWAP_PIXELS 1
#define NAME glue(glue(lbbp_, BORDER), BITS)
#ifdef HOST_WORDS_BIGENDIAN
#define SWAP_WORDS 1
#endif
#endif
#define FN_2(x, y) FN(x, y) FN(x+1, y)
#define FN_4(x, y) FN_2(x, y) FN_2(x+2, y)
#define FN_8(y) FN_4(0, y) FN_4(4, y)
static void glue(pl110_draw_line1_,NAME)(void *opaque, uint8_t *d, const uint8_t *src, int width, int deststep)
{
uint32_t *palette = opaque;
uint32_t data;
while (width > 0) {
data = *(uint32_t *)src;
#ifdef SWAP_PIXELS
#define FN(x, y) COPY_PIXEL(d, palette[(data >> (y + 7 - (x))) & 1]);
#else
#define FN(x, y) COPY_PIXEL(d, palette[(data >> ((x) + y)) & 1]);
#endif
#ifdef SWAP_WORDS
FN_8(24)
FN_8(16)
FN_8(8)
FN_8(0)
#else
FN_8(0)
FN_8(8)
FN_8(16)
FN_8(24)
#endif
#undef FN
width -= 32;
src += 4;
}
}
static void glue(pl110_draw_line2_,NAME)(void *opaque, uint8_t *d, const uint8_t *src, int width, int deststep)
{
uint32_t *palette = opaque;
uint32_t data;
while (width > 0) {
data = *(uint32_t *)src;
#ifdef SWAP_PIXELS
#define FN(x, y) COPY_PIXEL(d, palette[(data >> (y + 6 - (x)*2)) & 3]);
#else
#define FN(x, y) COPY_PIXEL(d, palette[(data >> ((x)*2 + y)) & 3]);
#endif
#ifdef SWAP_WORDS
FN_4(0, 24)
FN_4(0, 16)
FN_4(0, 8)
FN_4(0, 0)
#else
FN_4(0, 0)
FN_4(0, 8)
FN_4(0, 16)
FN_4(0, 24)
#endif
#undef FN
width -= 16;
src += 4;
}
}
static void glue(pl110_draw_line4_,NAME)(void *opaque, uint8_t *d, const uint8_t *src, int width, int deststep)
{
uint32_t *palette = opaque;
uint32_t data;
while (width > 0) {
data = *(uint32_t *)src;
#ifdef SWAP_PIXELS
#define FN(x, y) COPY_PIXEL(d, palette[(data >> (y + 4 - (x)*4)) & 0xf]);
#else
#define FN(x, y) COPY_PIXEL(d, palette[(data >> ((x)*4 + y)) & 0xf]);
#endif
#ifdef SWAP_WORDS
FN_2(0, 24)
FN_2(0, 16)
FN_2(0, 8)
FN_2(0, 0)
#else
FN_2(0, 0)
FN_2(0, 8)
FN_2(0, 16)
FN_2(0, 24)
#endif
#undef FN
width -= 8;
src += 4;
}
}
static void glue(pl110_draw_line8_,NAME)(void *opaque, uint8_t *d, const uint8_t *src, int width, int deststep)
{
uint32_t *palette = opaque;
uint32_t data;
while (width > 0) {
data = *(uint32_t *)src;
#define FN(x) COPY_PIXEL(d, palette[(data >> (x)) & 0xff]);
#ifdef SWAP_WORDS
FN(24)
FN(16)
FN(8)
FN(0)
#else
FN(0)
FN(8)
FN(16)
FN(24)
#endif
#undef FN
width -= 4;
src += 4;
}
}
static void glue(pl110_draw_line16_,NAME)(void *opaque, uint8_t *d, const uint8_t *src, int width, int deststep)
{
uint32_t data;
unsigned int r, g, b;
while (width > 0) {
data = *(uint32_t *)src;
#ifdef SWAP_WORDS
data = bswap32(data);
#endif
#ifdef RGB
#define LSB r
#define MSB b
#else
#define LSB b
#define MSB r
#endif
#if 0
LSB = data & 0x1f;
data >>= 5;
g = data & 0x3f;
data >>= 6;
MSB = data & 0x1f;
data >>= 5;
#else
LSB = (data & 0x1f) << 3;
data >>= 5;
g = (data & 0x3f) << 2;
data >>= 6;
MSB = (data & 0x1f) << 3;
data >>= 5;
#endif
COPY_PIXEL(d, glue(rgb_to_pixel,BITS)(r, g, b));
LSB = (data & 0x1f) << 3;
data >>= 5;
g = (data & 0x3f) << 2;
data >>= 6;
MSB = (data & 0x1f) << 3;
data >>= 5;
COPY_PIXEL(d, glue(rgb_to_pixel,BITS)(r, g, b));
#undef MSB
#undef LSB
width -= 2;
src += 4;
}
}
static void glue(pl110_draw_line32_,NAME)(void *opaque, uint8_t *d, const uint8_t *src, int width, int deststep)
{
uint32_t data;
unsigned int r, g, b;
while (width > 0) {
data = *(uint32_t *)src;
#ifdef RGB
#define LSB r
#define MSB b
#else
#define LSB b
#define MSB r
#endif
#ifndef SWAP_WORDS
LSB = data & 0xff;
g = (data >> 8) & 0xff;
MSB = (data >> 16) & 0xff;
#else
LSB = (data >> 24) & 0xff;
g = (data >> 16) & 0xff;
MSB = (data >> 8) & 0xff;
#endif
COPY_PIXEL(d, glue(rgb_to_pixel,BITS)(r, g, b));
#undef MSB
#undef LSB
width--;
src += 4;
}
}
static void glue(pl110_draw_line16_555_,NAME)(void *opaque, uint8_t *d, const uint8_t *src, int width, int deststep)
{
/* RGB 555 plus an intensity bit (which we ignore) */
uint32_t data;
unsigned int r, g, b;
while (width > 0) {
data = *(uint32_t *)src;
#ifdef SWAP_WORDS
data = bswap32(data);
#endif
#ifdef RGB
#define LSB r
#define MSB b
#else
#define LSB b
#define MSB r
#endif
LSB = (data & 0x1f) << 3;
data >>= 5;
g = (data & 0x1f) << 3;
data >>= 5;
MSB = (data & 0x1f) << 3;
data >>= 5;
COPY_PIXEL(d, glue(rgb_to_pixel,BITS)(r, g, b));
LSB = (data & 0x1f) << 3;
data >>= 5;
g = (data & 0x1f) << 3;
data >>= 5;
MSB = (data & 0x1f) << 3;
data >>= 6;
COPY_PIXEL(d, glue(rgb_to_pixel,BITS)(r, g, b));
#undef MSB
#undef LSB
width -= 2;
src += 4;
}
}
static void glue(pl110_draw_line12_,NAME)(void *opaque, uint8_t *d, const uint8_t *src, int width, int deststep)
{
/* RGB 444 with 4 bits of zeroes at the top of each halfword */
uint32_t data;
unsigned int r, g, b;
while (width > 0) {
data = *(uint32_t *)src;
#ifdef SWAP_WORDS
data = bswap32(data);
#endif
#ifdef RGB
#define LSB r
#define MSB b
#else
#define LSB b
#define MSB r
#endif
LSB = (data & 0xf) << 4;
data >>= 4;
g = (data & 0xf) << 4;
data >>= 4;
MSB = (data & 0xf) << 4;
data >>= 8;
COPY_PIXEL(d, glue(rgb_to_pixel,BITS)(r, g, b));
LSB = (data & 0xf) << 4;
data >>= 4;
g = (data & 0xf) << 4;
data >>= 4;
MSB = (data & 0xf) << 4;
data >>= 8;
COPY_PIXEL(d, glue(rgb_to_pixel,BITS)(r, g, b));
#undef MSB
#undef LSB
width -= 2;
src += 4;
}
}
#undef SWAP_PIXELS
#undef NAME
#undef SWAP_WORDS
#undef ORDER
#endif
|
