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HD200 - implement blit functions

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25767 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Marcin Bukat 2010-04-30 14:13:52 +00:00
parent 572ac53359
commit 88baa4d4c7
3 changed files with 120 additions and 19 deletions
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3
apps/plugins/test_scanrate.c
View file

@ -89,6 +89,9 @@ PLUGIN_HEADER
#define DEFAULT_SCAN_RATE 1500
#define HORIZ_SCAN /* LCD controller updates the panel sideways */
#define NEED_BOOST
#elif defined MPIO_HD200
#define DEFAULT_SCAN_RATE 1460
#define NEED_BOOST
#elif defined IAUDIO_M5
#define DEFAULT_SCAN_RATE 730
#elif defined IPOD_1G2G

76
firmware/target/coldfire/mpio/hd200/lcd-as-hd200.S
View file

@ -8,6 +8,7 @@
* $Id:$
*
* Copyright (C) 2010 Marcin Bukat
* based on lcd-as-m3.S by Jens Arnold
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@ -99,5 +100,80 @@ lcd_write_data:
.write_end:
rts
.wd_end:
.size lcd_write_data,.wd_end-lcd_write_data
.global lcd_mono_data
.type lcd_mono_data, @function
lcd_mono_data:
move.l (4, %sp), %a0 /* p_bytes */
move.l (8, %sp), %d0 /* count */
lea.l LCD_BASE_ADDRESS+2, %a1 /* LCD data port address */
.md_loop:
move.b (%a0)+, %d1
move.w %d1, (%a1) /* byte transfers actually */
move.w %d1, (%a1)
subq.l #1, %d0
bne.s .md_loop
rts
.md_end:
.size lcd_mono_data,.md_end-lcd_mono_data
.global lcd_grey_data
.type lcd_grey_data,@function
lcd_grey_data:
lea.l (-2*4, %sp), %sp
movem.l %a2-%a3, (%sp)
movem.l (2*4+4, %sp), %a0-%a2 /* values, phases, length */
add.l %a2, %a2
lea.l (%a1, %a2.l*4), %a2 /* end address */
lea.l LCD_BASE_ADDRESS+2, %a3 /* LCD data port address */
.ph_loop:
clr.l %d1
move.l (%a1), %d0 /* fetch 4 pixel phases */
bclr.l #31, %d0 /* Z = !(p0 & 0x80); p0 &= ~0x80; */
seq.b %d1 /* %d1 = ........................00000000 */
lsl.l #1, %d1 /* %d1 = .......................00000000. */
bclr.l #23, %d0 /* Z = !(p1 & 0x80); p1 &= ~0x80; */
seq.b %d1 /* %d1 = .......................011111111 */
lsl.l #1, %d1 /* %d1 = ......................011111111. */
bclr.l #15, %d0 /* Z = !(p2 & 0x80); p2 &= ~0x80; */
seq.b %d1 /* %d1 = ......................0122222222 */
lsl.l #1, %d1 /* %d1 = .....................0122222222. */
bclr.l #7, %d0 /* Z = !(p3 & 0x80); p3 &= ~0x80; */
seq.b %d1 /* %d1 = .....................01233333333 */
lsl.l #1, %d1 /* %d1 = ....................01233333333. */
add.l (%a0)+, %d0 /* add 4 pixel values to the phases */
move.l %d0, (%a1)+ /* store new phases, advance pointer */
clr.l %d1
move.l (%a1), %d0 /* fetch 4 pixel phases */
bclr.l #31, %d0 /* Z = !(p0 & 0x80); p0 &= ~0x80; */
seq.b %d1 /* %d1 = ....................012344444444 */
lsl.l #1, %d1 /* %d1 = ...................012344444444. */
bclr.l #23, %d0 /* Z = !(p1 & 0x80); p1 &= ~0x80; */
seq.b %d1 /* %d1 = ...................0123455555555 */
lsl.l #1, %d1 /* %d1 = ..................0123455555555. */
bclr.l #15, %d0 /* Z = !(p2 & 0x80); p2 &= ~0x80; */
seq.b %d1 /* %d1 = ..................01234566666666 */
lsl.l #1, %d1 /* %d1 = .................01234566666666. */
bclr.l #7, %d0 /* Z = !(p3 & 0x80); p3 &= ~0x80; */
seq.b %d1 /* %d1 = .................012345677777777 */
lsr.l #7, %d1 /* %d1 = ........................01234567 */
add.l (%a0)+, %d0 /* add 4 pixel values to the phases */
move.l %d0, (%a1)+ /* store new phases, advance pointer */
move.w %d1, (%a3) /* transfer to lcd */
move.w %d1, (%a3) /* transfer to lcd */
cmp.l %a2, %a1
bls .ph_loop
movem.l (%sp), %a2-%a3
lea.l (2*4, %sp), %sp
rts
.grey_end:
.size lcd_grey_data,.grey_end-lcd_grey_data

60
firmware/target/coldfire/mpio/hd200/lcd-hd200.c
View file

@ -215,27 +215,49 @@ void lcd_update_rect(int x, int y, int width, int height)
}
void lcd_blit_grey_phase(unsigned char *values, unsigned char *phases,
int x, int by, int width, int bheight, int stride)
{
(void)values;
(void)phases;
(void)x;
(void)by;
(void)width;
(void)bheight;
(void)stride;
/* empty stub */
}
/* Helper function. */
void lcd_mono_data(const unsigned char *data, int count);
/* Performance function that works with an external buffer
note that by and bheight are in 8-pixel units! */
void lcd_blit_mono(const unsigned char *data, int x, int by, int width,
int bheight, int stride)
{
(void)data;
(void)x;
(void)by;
(void)width;
(void)bheight;
(void)stride;
/* empty stub */
if (lcd_initialized)
{
while (bheight--)
{
lcd_write_command(LCD_SET_PAGE | (by & 0xf));
lcd_write_command_e(LCD_SET_COLUMN | ((x >> 4) & 0xf), x & 0xf);
lcd_mono_data(data, width);
data += stride;
by++;
}
}
}
/* Helper function for lcd_grey_phase_blit(). */
void lcd_grey_data(unsigned char *values, unsigned char *phases, int count);
/* Performance function that works with an external buffer
note that by and bheight are in 8-pixel units! */
void lcd_blit_grey_phase(unsigned char *values, unsigned char *phases,
int x, int by, int width, int bheight, int stride)
{
if (lcd_initialized)
{
stride <<= 3; /* 8 pixels per block */
while (bheight--)
{
lcd_write_command(LCD_SET_PAGE | (by & 0xf));
lcd_write_command_e(LCD_SET_COLUMN | ((x >> 4) & 0xf), x & 0xf);
lcd_grey_data(values, phases, width);
values += stride;
phases += stride;
by++;
}
}
}