diff options
Diffstat (limited to 'firmware/target/arm/philips/hdd6330')
-rw-r--r-- | firmware/target/arm/philips/hdd6330/lcd-as-hdd6330.S | 140 | ||||
-rw-r--r-- | firmware/target/arm/philips/hdd6330/lcd-hdd6330.c | 98 |
2 files changed, 238 insertions, 0 deletions
diff --git a/firmware/target/arm/philips/hdd6330/lcd-as-hdd6330.S b/firmware/target/arm/philips/hdd6330/lcd-as-hdd6330.S new file mode 100644 index 0000000000..c3a7992a2e --- /dev/null +++ b/firmware/target/arm/philips/hdd6330/lcd-as-hdd6330.S | |||
@@ -0,0 +1,140 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id:$ | ||
9 | * | ||
10 | * Copyright (C) 2010 by Szymon Dziok | ||
11 | * | ||
12 | * Philips Gogear HDD6330 LCD assembly routine | ||
13 | * | ||
14 | * This program is free software; you can redistribute it and/or | ||
15 | * modify it under the terms of the GNU General Public License | ||
16 | * as published by the Free Software Foundation; either version 2 | ||
17 | * of the License, or (at your option) any later version. | ||
18 | * | ||
19 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
20 | * KIND, either express or implied. | ||
21 | * | ||
22 | ****************************************************************************/ | ||
23 | |||
24 | #include "config.h" | ||
25 | #include "cpu.h" | ||
26 | |||
27 | /**************************************************************************** | ||
28 | void lcd_yuv_write_inner_loop(unsigned char const * const ysrc, | ||
29 | unsigned char const * const usrc, | ||
30 | unsigned char const * const vsrc, | ||
31 | int width); | ||
32 | */ | ||
33 | .section .icode, "ax", %progbits | ||
34 | .align 2 | ||
35 | .global lcd_yuv_write_inner_loop | ||
36 | .type lcd_yuv_write_inner_loop, %function | ||
37 | lcd_yuv_write_inner_loop: | ||
38 | @ r0 = ysrc | ||
39 | @ r1 = usrc | ||
40 | @ r2 = vsrc | ||
41 | @ r3 = width | ||
42 | stmfd sp!, { r4-r11, lr } @ save regs | ||
43 | mov r4, #0x70000000 @ r4 = LCD2_BLOCK_CTRL - 0x20 | ||
44 | add r4, r4, #0x8a00 @ | ||
45 | add r5, r4, #0x100 @ r5 = LCD2_BLOCK_DATA | ||
46 | 10: @ loop | ||
47 | |||
48 | ldrb r7, [r1], #1 @ *usrc++ | ||
49 | ldrb r8, [r2], #1 @ *vsrc++ | ||
50 | |||
51 | sub r7, r7, #128 @ Cb -= 128 | ||
52 | sub r8, r8, #128 @ Cr -= 128 | ||
53 | |||
54 | add r10, r8, r8, asl #2 @ Cr*101 | ||
55 | add r10, r10, r8, asl #5 | ||
56 | add r10, r10, r8, asl #6 | ||
57 | |||
58 | add r11, r8, r8, asl #1 @ Cr*51 + Cb*24 | ||
59 | add r11, r11, r11, asl #4 | ||
60 | add r11, r11, r7, asl #3 | ||
61 | add r11, r11, r7, asl #4 | ||
62 | |||
63 | add r12, r7, #2 @ r12 = bu = (Cb*128 + 256) >> 9 | ||
64 | mov r12, r12, asr #2 | ||
65 | add r10, r10, #256 @ r10 = rv = (Cr*101 + 256) >> 9 | ||
66 | mov r10, r10, asr #9 | ||
67 | rsb r11, r11, #128 @ r11 = guv = (-r11 + 128) >> 8 | ||
68 | mov r11, r11, asr #8 | ||
69 | |||
70 | @ pixel_1 | ||
71 | ldrb r7, [r0], #1 @ *ysrc++ | ||
72 | sub r7, r7, #16 @ Y = (Y' - 16) * 37 | ||
73 | add r8, r7, r7, asl #2 | ||
74 | add r7, r8, r7, asl #5 | ||
75 | |||
76 | add r9, r10, r7, asr #8 @ R = (Y >> 8) + rv | ||
77 | add r8, r11, r7, asr #7 @ G = (Y >> 7) + guv | ||
78 | add r7, r12, r7, asr #8 @ B = (Y >> 8) + bu | ||
79 | |||
80 | cmp r9, #31 @ clamp R | ||
81 | mvnhi r9, r9, asr #31 | ||
82 | andhi r9, r9, #31 | ||
83 | |||
84 | cmp r8, #63 @ clamp G | ||
85 | mvnhi r8, r8, asr #31 | ||
86 | andhi r8, r8, #63 | ||
87 | |||
88 | cmp r7, #31 @ clamp B | ||
89 | mvnhi r7, r7, asr #31 | ||
90 | andhi r7, r7, #31 | ||
91 | |||
92 | orr r6, r7, r8, lsl #5 @ pack pixel | ||
93 | orr r6, r6, r9, lsl #11 | ||
94 | |||
95 | mov r7, r6, lsl #8 @ swap bytes | ||
96 | and r7, r7, #0xff00 | ||
97 | add r6, r7, r6, lsr #8 | ||
98 | |||
99 | @ pixel_2 | ||
100 | ldrb r7, [r0], #1 @ *ysrc++ | ||
101 | sub r7, r7, #16 @ Y = (Y' - 16) * 37 | ||
102 | add r8, r7, r7, asl #2 | ||
103 | add r7, r8, r7, asl #5 | ||
104 | |||
105 | add r9, r10, r7, asr #8 @ R = (Y >> 8) + rv | ||
106 | add r8, r11, r7, asr #7 @ G = (Y >> 7) + guv | ||
107 | add r7, r12, r7, asr #8 @ B = (Y >> 8) + bu | ||
108 | |||
109 | cmp r9, #31 @ clamp R | ||
110 | mvnhi r9, r9, asr #31 | ||
111 | andhi r9, r9, #31 | ||
112 | |||
113 | cmp r8, #63 @ clamp G | ||
114 | mvnhi r8, r8, asr #31 | ||
115 | andhi r8, r8, #63 | ||
116 | |||
117 | cmp r7, #31 @ clamp B | ||
118 | mvnhi r7, r7, asr #31 | ||
119 | andhi r7, r7, #31 | ||
120 | |||
121 | orr r7, r7, r8, lsl #5 @ pack pixel | ||
122 | orr r7, r7, r9, lsl #11 | ||
123 | |||
124 | orr r6, r6, r7, lsl #24 @ swap bytes and add pixels simultaneously | ||
125 | mov r7, r7, lsr #8 | ||
126 | orr r6, r6, r7, lsl #16 | ||
127 | |||
128 | 11: @ while (!(LCD2_BLOCK_CTRL & LCD2_BLOCK_TXOK)); | ||
129 | ldr r11, [r4, #0x20] @ | ||
130 | tst r11, #0x1000000 @ | ||
131 | beq 11b @ | ||
132 | |||
133 | str r6, [r5] @ send two pixels | ||
134 | |||
135 | subs r3, r3, #2 @ decrease width | ||
136 | bgt 10b @ loop | ||
137 | |||
138 | ldmpc regs=r4-r11 @ restore regs | ||
139 | .ltorg @ dump constant pool | ||
140 | .size lcd_yuv_write_inner_loop, .-lcd_yuv_write_inner_loop | ||
diff --git a/firmware/target/arm/philips/hdd6330/lcd-hdd6330.c b/firmware/target/arm/philips/hdd6330/lcd-hdd6330.c index 9d2fdc8519..cdd3064bba 100644 --- a/firmware/target/arm/philips/hdd6330/lcd-hdd6330.c +++ b/firmware/target/arm/philips/hdd6330/lcd-hdd6330.c | |||
@@ -37,6 +37,9 @@ | |||
37 | /* whether the lcd is currently enabled or not */ | 37 | /* whether the lcd is currently enabled or not */ |
38 | static bool lcd_enabled; | 38 | static bool lcd_enabled; |
39 | 39 | ||
40 | /* Display status */ | ||
41 | static unsigned lcd_yuv_options SHAREDBSS_ATTR = 0; | ||
42 | |||
40 | /* Value used for flipping. Must be remembered when display is turned off. */ | 43 | /* Value used for flipping. Must be remembered when display is turned off. */ |
41 | static unsigned short flip; | 44 | static unsigned short flip; |
42 | 45 | ||
@@ -144,6 +147,101 @@ void lcd_set_flip(bool yesno) | |||
144 | lcd_send_data(0x08 | flip); | 147 | lcd_send_data(0x08 | flip); |
145 | } | 148 | } |
146 | 149 | ||
150 | void lcd_yuv_set_options(unsigned options) | ||
151 | { | ||
152 | lcd_yuv_options = options; | ||
153 | } | ||
154 | |||
155 | #define CSUB_X 2 | ||
156 | #define CSUB_Y 2 | ||
157 | |||
158 | /* YUV- > RGB565 conversion | ||
159 | * |R| |1.000000 -0.000001 1.402000| |Y'| | ||
160 | * |G| = |1.000000 -0.334136 -0.714136| |Pb| | ||
161 | * |B| |1.000000 1.772000 0.000000| |Pr| | ||
162 | * Scaled, normalized, rounded and tweaked to yield RGB 565: | ||
163 | * |R| |74 0 101| |Y' - 16| >> 9 | ||
164 | * |G| = |74 -24 -51| |Cb - 128| >> 8 | ||
165 | * |B| |74 128 0| |Cr - 128| >> 9 | ||
166 | */ | ||
167 | |||
168 | extern void lcd_yuv_write_inner_loop(unsigned char const * const ysrc, | ||
169 | unsigned char const * const usrc, | ||
170 | unsigned char const * const vsrc, | ||
171 | int width); | ||
172 | |||
173 | /* Performance function to blit a YUV bitmap directly to the LCD */ | ||
174 | void lcd_blit_yuv(unsigned char * const src[3], | ||
175 | int src_x, int src_y, int stride, | ||
176 | int x, int y, int width, int height) | ||
177 | { | ||
178 | int h; | ||
179 | |||
180 | width = (width + 1) & ~1; | ||
181 | |||
182 | lcd_send_reg(LCD_REG_HORIZ_ADDR_START); | ||
183 | lcd_send_data(y); | ||
184 | |||
185 | lcd_send_reg(LCD_REG_HORIZ_ADDR_END); | ||
186 | lcd_send_data(y + height - 1); | ||
187 | |||
188 | lcd_send_reg(LCD_REG_VERT_ADDR_START); | ||
189 | lcd_send_data(x + x_offset); | ||
190 | |||
191 | lcd_send_reg(LCD_REG_VERT_ADDR_END); | ||
192 | lcd_send_data(x + width - 1 + x_offset); | ||
193 | |||
194 | lcd_send_reg(LCD_REG_WRITE_DATA_2_GRAM); | ||
195 | |||
196 | const int stride_div_csub_x = stride/CSUB_X; | ||
197 | |||
198 | h=0; | ||
199 | while (1) | ||
200 | { | ||
201 | /* upsampling, YUV->RGB conversion and reduction to RGB565 in one go */ | ||
202 | const unsigned char *ysrc = src[0] + stride * src_y + src_x; | ||
203 | |||
204 | const int uvoffset = stride_div_csub_x * (src_y/CSUB_Y) + | ||
205 | (src_x/CSUB_X); | ||
206 | |||
207 | const unsigned char *usrc = src[1] + uvoffset; | ||
208 | const unsigned char *vsrc = src[2] + uvoffset; | ||
209 | |||
210 | int pixels_to_write; | ||
211 | |||
212 | if (h==0) | ||
213 | { | ||
214 | while (!(LCD2_BLOCK_CTRL & LCD2_BLOCK_READY)); | ||
215 | LCD2_BLOCK_CONFIG = 0; | ||
216 | |||
217 | if (height == 0) break; | ||
218 | |||
219 | pixels_to_write = (width * height) * 2; | ||
220 | h = height; | ||
221 | |||
222 | /* calculate how much we can do in one go */ | ||
223 | if (pixels_to_write > 0x10000) | ||
224 | { | ||
225 | h = (0x10000/2) / width; | ||
226 | pixels_to_write = (width * h) * 2; | ||
227 | } | ||
228 | |||
229 | height -= h; | ||
230 | LCD2_BLOCK_CTRL = 0x10000080; | ||
231 | LCD2_BLOCK_CONFIG = 0xc0010000 | (pixels_to_write - 1); | ||
232 | LCD2_BLOCK_CTRL = 0x34000000; | ||
233 | } | ||
234 | |||
235 | lcd_yuv_write_inner_loop(ysrc,usrc,vsrc,width); | ||
236 | |||
237 | src_y++; | ||
238 | h--; | ||
239 | } | ||
240 | |||
241 | while (!(LCD2_BLOCK_CTRL & LCD2_BLOCK_READY)); | ||
242 | LCD2_BLOCK_CONFIG = 0; | ||
243 | } | ||
244 | |||
147 | /* Update the display. | 245 | /* Update the display. |
148 | This must be called after all other LCD functions that change the display. */ | 246 | This must be called after all other LCD functions that change the display. */ |
149 | void lcd_update(void) | 247 | void lcd_update(void) |