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Grayscale support for rockboy - can't work without markuns patch,

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needs rockbox' internal framebuffer in 2 bit (4 pixels / byte) format.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6132 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michiel Van Der Kolk 2005-03-04 11:01:33 +00:00
parent ee811a3443
commit ca2e99b4be
4 changed files with 29 additions and 2 deletions
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1
apps/plugins/rockboy/Makefile
View file

@ -22,6 +22,7 @@ SRC = cpu.c emu.c events.c exports.c fastmem.c hw.c lcd.c lcdc.c loader.c \
main.c mem.c nosound.c rccmds.c rcvars.c rtc.c save.c sound.c split.c \ main.c mem.c nosound.c rccmds.c rcvars.c rtc.c save.c sound.c split.c \
sys_rockbox.c rockboy.c menu.c sys_rockbox.c rockboy.c menu.c
#CFLAGS += -DGRAYSCALE
#CFLAGS += -DDYNAREC #CFLAGS += -DDYNAREC
#SRC += dynarec.c #SRC += dynarec.c

8
apps/plugins/rockboy/lcd.c
View file

@ -753,8 +753,12 @@ void lcd_refreshline(void)
L = R_LY; L = R_LY;
#if LCD_HEIGHT == 64 #if LCD_HEIGHT == 64
scanline_ind = (L/2) % 8; scanline_ind = (L/2) % 8;
#else
#ifdef GRAYSCALE
scanline_ind = L % 4;
#else #else
scanline_ind = L % 8; scanline_ind = L % 8;
#endif
#endif #endif
X = R_SCX; X = R_SCX;
Y = (R_SCY + L) & 0xff; Y = (R_SCY + L) & 0xff;
@ -797,7 +801,11 @@ void lcd_refreshline(void)
if (scale == 1) density = 1; if (scale == 1) density = 1;
dest = vdest; dest = vdest;
*/ */
#ifdef GRAYSCALE
if (scanline_ind == 3)
#else
if (scanline_ind == 7) if (scanline_ind == 7)
#endif
vid_update(L); vid_update(L);
// vdest += fb.pitch * scale; // vdest += fb.pitch * scale;
} }

6
apps/plugins/rockboy/lcd.h
View file

@ -16,7 +16,11 @@ struct scan
{ {
int bg[64]; int bg[64];
int wnd[64]; int wnd[64];
byte buf[8][256]; #ifdef GRAYSCALE
byte buf[4][256];
#else
byte buf[8][256];
#endif
byte pal1[128]; byte pal1[128];
un16 pal2[64]; un16 pal2[64];
un32 pal4[64]; un32 pal4[64];

16
apps/plugins/rockboy/sys_rockbox.c
View file

@ -236,9 +236,22 @@ void vid_update(int scanline)
#else /* LCD_HEIGHT != 64, iRiver */ #else /* LCD_HEIGHT != 64, iRiver */
if (fb.mode==1) if (fb.mode==1)
scanline-=16; scanline-=16;
#ifdef GRAYSCALE
scanline_remapped = scanline / 4;
#else
scanline_remapped = scanline / 8; scanline_remapped = scanline / 8;
#endif
frameb = rb->lcd_framebuffer + scanline_remapped * LCD_WIDTH; frameb = rb->lcd_framebuffer + scanline_remapped * LCD_WIDTH;
while (cnt < 160) { while (cnt < 160) {
#ifdef GRAYSCALE
*(frameb++) = (scan.buf[0][cnt]&0x3) |
((scan.buf[1][cnt]&0x3)<<2) |
((scan.buf[2][cnt]&0x3)<<4) |
((scan.buf[3][cnt]&0x3)<<6);
cnt++;
}
rb->lcd_update_rect(0, scanline & ~3, LCD_WIDTH, 4); //8);
#else
register unsigned scrbyte = 0; register unsigned scrbyte = 0;
if (scan.buf[0][cnt] & 0x02) scrbyte |= 0x01; if (scan.buf[0][cnt] & 0x02) scrbyte |= 0x01;
if (scan.buf[1][cnt] & 0x02) scrbyte |= 0x02; if (scan.buf[1][cnt] & 0x02) scrbyte |= 0x02;
@ -252,7 +265,8 @@ void vid_update(int scanline)
cnt++; cnt++;
} }
rb->lcd_update_rect(0, scanline & ~7, LCD_WIDTH, 8); rb->lcd_update_rect(0, scanline & ~7, LCD_WIDTH, 8);
#endif #endif /* GRAYSCALE */
#endif /* LCD_HEIGHT */
} }
void vid_end(void) void vid_end(void)