[U-Boot] [PATCH V2 6/9] lcd: make 16bpp work
Alessandro Rubini
rubini-list at gnudd.com
Wed Nov 25 22:47:24 CET 2009
From: Alessandro Rubini <rubini at unipv.it>
Support for 16bpp was supposed to be in the code but was not working.
This makes it work and has been tested in the nhk8815 board.
Signed-off-by: Alessandro Rubini <rubini at unipv.it>
Acked-by: Andrea Gallo <andrea.gallo at stericsson.com>
---
common/lcd.c | 27 +++++++++++++++++++++------
1 files changed, 21 insertions(+), 6 deletions(-)
diff --git a/common/lcd.c b/common/lcd.c
index 4e31618..3d9bfdf 100644
--- a/common/lcd.c
+++ b/common/lcd.c
@@ -63,7 +63,7 @@
/************************************************************************/
#ifdef CONFIG_LCD_LOGO
# include <bmp_logo.h> /* Get logo data, width and height */
-# if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET)
+# if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET) && (LCD_BPP != LCD_COLOR16)
# error Default Color Map overlaps with Logo Color Map
# endif
#endif
@@ -218,8 +218,12 @@ static void lcd_drawchars (ushort x, ushort y, uchar *str, int count)
for (row=0; row < VIDEO_FONT_HEIGHT; ++row, dest += lcd_line_length) {
uchar *s = str;
- uchar *d = dest;
int i;
+#if LCD_BPP == LCD_COLOR16
+ ushort *d = (ushort *)dest;
+#else
+ uchar *d = dest;
+#endif
#if LCD_BPP == LCD_MONOCHROME
uchar rest = *d & -(1 << (8-off));
@@ -244,9 +248,8 @@ static void lcd_drawchars (ushort x, ushort y, uchar *str, int count)
bits <<= 1;
}
#elif LCD_BPP == LCD_COLOR16
- for (c=0; c<16; ++c) {
- *d++ = (bits & 0x80) ?
- lcd_color_fg : lcd_color_bg;
+ for (c=0; c<8; ++c) {
+ *d++ = (bits & 0x80) ? 0xffff : 0;
bits <<= 1;
}
#endif
@@ -529,6 +532,13 @@ void bitmap_plot (int x, int y)
cmap = (ushort *)&(cp->lcd_cmap[BMP_LOGO_OFFSET*sizeof(ushort)]);
#elif defined(CONFIG_ATMEL_LCD)
cmap = (uint *) (panel_info.mmio + ATMEL_LCDC_LUT(0));
+#else
+ /*
+ * default case: generic system with no cmap (most likely 16bpp)
+ * We set cmap to the source palette, so no change is done.
+ * This avoids even more ifdef in the next stanza
+ */
+ cmap = bmp_logo_palette;
#endif
WATCHDOG_RESET();
@@ -567,10 +577,15 @@ void bitmap_plot (int x, int y)
}
}
else { /* true color mode */
+ u16 col16;
fb16 = (ushort *)(lcd_base + y * lcd_line_length + x);
for (i=0; i<BMP_LOGO_HEIGHT; ++i) {
for (j=0; j<BMP_LOGO_WIDTH; j++) {
- fb16[j] = bmp_logo_palette[(bmap[j])];
+ col16 = bmp_logo_palette[(bmap[j]-16)];
+ fb16[j] =
+ ((col16 & 0x000F) << 1) |
+ ((col16 & 0x00F0) << 3) |
+ ((col16 & 0x0F00) << 4);
}
bmap += BMP_LOGO_WIDTH;
fb16 += panel_info.vl_col;
--
1.6.0.2
More information about the U-Boot
mailing list