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Proper screendump for greyscale iPods.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8735 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jens Arnold 2006-02-19 12:31:04 +00:00
parent 9e244e04a0
commit da5cef6330
1 changed files with 29 additions and 0 deletions
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29
apps/misc.c
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@ -295,7 +295,11 @@ void screen_dump(void)
#if LCD_DEPTH == 1
static unsigned char line_block[8][BMP_LINESIZE];
#elif LCD_DEPTH == 2
#if LCD_PIXELFORMAT == HORIZONTAL_PACKING
static unsigned char line_block[BMP_LINESIZE];
#else
static unsigned char line_block[4][BMP_LINESIZE];
#endif
#elif LCD_DEPTH == 16
static unsigned short line_block[BMP_LINESIZE/2];
#endif
@ -352,6 +356,30 @@ void screen_dump(void)
write(fh, line_block, sizeof(line_block));
}
#elif LCD_DEPTH == 2
#if LCD_PIXELFORMAT == HORIZONTAL_PACKING
for (by = LCD_HEIGHT - 1; by >= 0; by--)
{
unsigned char *src = &lcd_framebuffer[by][0];
unsigned char *dst = line_block;
memset(line_block, 0, sizeof(line_block));
for (bx = LCD_WIDTH/4; bx > 0; bx--)
{
unsigned src_byte = *src++;
unsigned tmp;
tmp = src_byte & 3;
src_byte >>= 2;
*dst++ = (tmp << 4) | (src_byte & 3);
src_byte >>= 2;
tmp = src_byte & 3;
src_byte >>= 2;
*dst++ = (tmp << 4) | (src_byte & 3);
}
write(fh, line_block, sizeof(line_block));
}
#else /* VERTICAL_PACKING */
for (by = LCD_HEIGHT/4 - 1; by >= 0; by--)
{
unsigned char *src = &lcd_framebuffer[by][0];
@ -376,6 +404,7 @@ void screen_dump(void)
write(fh, line_block, sizeof(line_block));
}
#endif
#elif LCD_DEPTH == 16
for (by = LCD_HEIGHT - 1; by >= 0; by--)
{