This patch adds 16bpp BMP support to the common lcd code.
Use CONFIG_BMP_16BPP and set LCD_BPP to LCD_COLOR16 to enable the code.
At the moment it's only been tested on the MIMC200 AVR32 board, but extending this to other platforms should be a simple task !!
Signed-off-by: Mark Jackson mpfj@mimc.co.uk ---
common/lcd.c | 49 +++++++++++++++++++++++++++++++++++++++---------- 1 files changed, 39 insertions(+), 10 deletions(-)
diff --git a/common/lcd.c b/common/lcd.c index ae79051..16d6f2a 100644 --- a/common/lcd.c +++ b/common/lcd.c @@ -84,7 +84,7 @@ extern void lcd_enable (void); static void *lcd_logo (void);
-#if LCD_BPP == LCD_COLOR8 +#if (LCD_BPP == LCD_COLOR8) || (LCD_BPP == LCD_COLOR16) extern void lcd_setcolreg (ushort regno, ushort red, ushort green, ushort blue); #endif @@ -656,7 +656,7 @@ int lcd_display_bitmap(ulong bmp_image, int x, int y)
bpix = NBITS(panel_info.vl_bpix);
- if ((bpix != 1) && (bpix != 8)) { + if ((bpix != 1) && (bpix != 8) && (bpix != 16)) { printf ("Error: %d bit/pixel mode not supported by U-Boot\n", bpix); return 1; @@ -738,17 +738,46 @@ int lcd_display_bitmap(ulong bmp_image, int x, int y) bmap = (uchar *)bmp + le32_to_cpu (bmp->header.data_offset); fb = (uchar *) (lcd_base + (y + height - 1) * lcd_line_length + x); - for (i = 0; i < height; ++i) { - WATCHDOG_RESET(); - for (j = 0; j < width ; j++) + + switch (bpix) { + case 1: /* pass through */ + case 8: + for (i = 0; i < height; ++i) { + WATCHDOG_RESET(); + for (j = 0; j < width ; j++) #if defined(CONFIG_PXA250) || defined(CONFIG_ATMEL_LCD) - *(fb++) = *(bmap++); + *(fb++) = *(bmap++); #elif defined(CONFIG_MPC823) || defined(CONFIG_MCC200) - *(fb++)=255-*(bmap++); + *(fb++)=255-*(bmap++); #endif - bmap += (width - padded_line); - fb -= (width + lcd_line_length); - } + bmap += (width - padded_line); + fb -= (width + lcd_line_length); + } + break; + +#if defined(CONFIG_BMP_16BPP) + case 16: + for (i = 0; i < height; ++i) { + WATCHDOG_RESET(); + for (j = 0; j < width; j++) { +#if defined(CONFIG_ATMEL_LCD_BGR555) + *(fb++) = ((bmap[0] & 0x1f) << 2) | (bmap[1] & 0x03); + *(fb++) = (bmap[0] & 0xe0) | ((bmap[1] & 0x7c) >> 2); + bmap += 2; +#else + *(fb++) = *(bmap++); + *(fb++) = *(bmap++); +#endif + } + bmap += (padded_line - width) * 2; + fb -= (width * 2 + lcd_line_length); + } + break; +#endif /* CONFIG_BMP_16BPP */ + + default: + break; + };
return (0); }