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
|
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2005 by Dave Chapman
* Copyright (C) 2009 by Karl Kurbjun
*
* Rockbox driver for 16-bit colour LCDs
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "config.h"
#include "cpu.h"
#include "lcd.h"
#include "kernel.h"
#include "thread.h"
#include <stdlib.h>
#include "string-extra.h" /* mem*() */
#include "file.h"
#include "debug.h"
#include "system.h"
#include "font.h"
#include "rbunicode.h"
#include "bidi.h"
#include "scroll_engine.h"
// #define LOGF_ENABLE
#include "logf.h"
#define ROW_INC lcd_current_viewport->buffer->stride
#define COL_INC 1
extern lcd_fastpixelfunc_type* const lcd_fastpixelfuncs_backdrop[];
extern lcd_fastpixelfunc_type* const lcd_fastpixelfuncs_bgcolor[];
static void ICODE_ATTR lcd_alpha_bitmap_part_mix(const fb_data* image,
const unsigned char *src, int src_x,
int src_y, int x, int y,
int width, int height,
int stride_image, int stride_src);
#include "lcd-color-common.c"
#include "lcd-bitmap-common.c"
#include "lcd-16bit-common.c"
/*** drawing functions ***/
/* Draw a horizontal line (optimised) */
void lcd_hline(int x1, int x2, int y)
{
struct viewport *vp = lcd_current_viewport;
int width;
unsigned bits = 0;
enum fill_opt fillopt = OPT_NONE;
fb_data *dst, *dst_end;
if (!clip_viewport_hline(vp, &x1, &x2, &y))
return;
width = x2 - x1 + 1;
/* drawmode and optimisation */
if (vp->drawmode & DRMODE_INVERSEVID)
{
if (vp->drawmode & DRMODE_BG)
{
if (!lcd_backdrop)
{
fillopt = OPT_SET;
bits = vp->bg_pattern;
}
else
fillopt = OPT_COPY;
}
}
else
{
if (vp->drawmode & DRMODE_FG)
{
fillopt = OPT_SET;
bits = vp->fg_pattern;
}
}
if (fillopt == OPT_NONE && vp->drawmode != DRMODE_COMPLEMENT)
return;
dst = FBADDR(x1, y);
switch (fillopt)
{
case OPT_SET:
memset16(dst, bits, width);
break;
case OPT_COPY:
memcpy(dst, PTR_ADD(dst, lcd_backdrop_offset),
width * sizeof(fb_data));
break;
case OPT_NONE: /* DRMODE_COMPLEMENT */
dst_end = dst + width;
do
*dst = ~(*dst);
while (++dst < dst_end);
break;
}
}
/* Draw a vertical line (optimised) */
void lcd_vline(int x, int y1, int y2)
{
struct viewport *vp = lcd_current_viewport;
fb_data *dst, *dst_end;
int stride_dst;
lcd_fastpixelfunc_type *pfunc = lcd_fastpixelfuncs[vp->drawmode];
if (!clip_viewport_vline(vp, &x, &y1, &y2))
return;
dst = FBADDR(x, y1);
stride_dst = vp->buffer->stride;
dst_end = dst + (y2 - y1) * stride_dst;
do
{
pfunc(dst);
dst += stride_dst;
}
while (dst <= dst_end);
}
/* Draw a partial native bitmap */
void ICODE_ATTR lcd_bitmap_part(const fb_data *src, int src_x, int src_y,
int stride, int x, int y, int width,
int height)
{
struct viewport *vp = lcd_current_viewport;
fb_data *dst;
int stride_dst;
if (!clip_viewport_rect(vp, &x, &y, &width, &height, &src_x, &src_y))
return;
src += stride * src_y + src_x; /* move starting point */
dst = FBADDR(x, y);
stride_dst = vp->buffer->stride;
do
{
memcpy(dst, src, width * sizeof(fb_data));
src += stride;
dst += stride_dst;
}
while (--height > 0);
}
/* Draw a partial native bitmap with transparency and foreground colors */
void ICODE_ATTR lcd_bitmap_transparent_part(const fb_data *src, int src_x,
int src_y, int stride, int x,
int y, int width, int height)
{
struct viewport *vp = lcd_current_viewport;
fb_data *dst;
unsigned fg = vp->fg_pattern;
int stride_dst = vp->buffer->stride;
if (!clip_viewport_rect(vp, &x, &y, &width, &height, &src_x, &src_y))
return;
src += stride * src_y + src_x; /* move starting point */
dst = FBADDR(x, y);
#ifdef CPU_ARM
{
int w, px;
asm volatile (
".rowstart: \n"
"mov %[w], %[width] \n" /* Load width for inner loop */
".nextpixel: \n"
"ldrh %[px], [%[s]], #2 \n" /* Load src pixel */
"add %[d], %[d], #2 \n" /* Uncoditionally increment dst */
/* done here for better pipelining */
"cmp %[px], %[fgcolor] \n" /* Compare to foreground color */
"streqh %[fgpat], [%[d], #-2] \n" /* Store foregroud if match */
"cmpne %[px], %[transcolor] \n" /* Compare to transparent color */
"strneh %[px], [%[d], #-2] \n" /* Store dst if not transparent */
"subs %[w], %[w], #1 \n" /* Width counter has run down? */
"bgt .nextpixel \n" /* More in this row? */
"add %[s], %[s], %[sstp], lsl #1 \n" /* Skip over to start of next line */
"add %[d], %[d], %[dstp], lsl #1 \n"
"subs %[h], %[h], #1 \n" /* Height counter has run down? */
"bgt .rowstart \n" /* More rows? */
: [w]"=&r"(w), [h]"+&r"(height), [px]"=&r"(px),
[s]"+&r"(src), [d]"+&r"(dst)
: [width]"r"(width),
[sstp]"r"(stride - width),
[dstp]"r"(stride_dst - width),
[transcolor]"r"(TRANSPARENT_COLOR),
[fgcolor]"r"(REPLACEWITHFG_COLOR),
[fgpat]"r"(fg)
);
}
#else /* optimized C version */
do
{
const fb_data *src_row = src;
fb_data *dst_row = dst;
fb_data *row_end = dst_row + width;
do
{
unsigned data = *src_row++;
if (data != TRANSPARENT_COLOR)
{
if (data == REPLACEWITHFG_COLOR)
data = fg;
*dst_row = data;
}
}
while (++dst_row < row_end);
src += stride;
dst += stride_dst;
}
while (--height > 0);
#endif
}
|
