[U-Boot] [PATCH v4 1/3]: LCD: display 32bpp decompressed bitmap image

[Donghwa Lee]

This patch supports drawing 32bpp decompressed bitmap image.

Signed-off-by: Donghwa Lee <dh09....@samsung.com>
Signed-off-by: Kyungmin.park <kyungmin.p...@samsung.com>
---
Changes for v1/v2/v3:
        - use lcd_line_length variable
                - convert RGB to BGR because BMP data format aligned BGR.

 common/lcd.c |   27 ++++++++++++++++++++++++---
 1 files changed, 24 insertions(+), 3 deletions(-)

diff --git a/common/lcd.c b/common/lcd.c
index bf1a6a9..460442d 100644
--- a/common/lcd.c
+++ b/common/lcd.c
@@ -616,6 +616,9 @@ int lcd_display_bitmap(ulong bmp_image, int x, int y)
 #if !defined(CONFIG_MCC200)
        ushort *cmap = NULL;
 #endif
+#if defined(CONFIG_BMP_32BPP)
+       uchar r, g, b, a;
+#endif
        ushort *cmap_base = NULL;
        ushort i, j;
        uchar *fb;
@@ -645,14 +648,14 @@ int lcd_display_bitmap(ulong bmp_image, int x, int y)
 
        bpix = NBITS(panel_info.vl_bpix);
 
-       if ((bpix != 1) && (bpix != 8) && (bpix != 16)) {
+       if ((bpix != 1) && (bpix != 8) && (bpix != 16) && (bpix != 32)) {
                printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
                        bpix, bmp_bpix);
                return 1;
        }
 
        /* We support displaying 8bpp BMPs on 16bpp LCDs */
-       if (bpix != bmp_bpix && (bmp_bpix != 8 || bpix != 16)) {
+       if (bpix != bmp_bpix && (bmp_bpix != 8 || bpix != 16 || bpix != 32)) {
                printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
                        bpix,
                        le16_to_cpu(bmp->header.bit_count));
@@ -669,7 +672,7 @@ int lcd_display_bitmap(ulong bmp_image, int x, int y)
                cmap = (ushort *)fbi->palette;
 #elif defined(CONFIG_MPC823)
                cmap = (ushort *)&(cp->lcd_cmap[255*sizeof(ushort)]);
-#elif !defined(CONFIG_ATMEL_LCD)
+#elif !defined(CONFIG_ATMEL_LCD) && !defined(CONFIG_EXYNOS_FB)
                cmap = panel_info.cmap;
 #endif
 
@@ -791,6 +794,24 @@ int lcd_display_bitmap(ulong bmp_image, int x, int y)
                break;
 #endif /* CONFIG_BMP_16BPP */
 
+#if defined(CONFIG_BMP_32BPP)
+       case 32:
+               for (i = 0; i < height; ++i) {
+                       for (j = 0; j < width; j++) {
+                               b = *(bmap++);
+                               g = *(bmap++);
+                               r = *(bmap++);
+                               a = *(bmap++);
+
+                               *(fb++) = r;
+                               *(fb++) = g;
+                               *(fb++) = b;
+                               *(fb++) = a;
+                       }
+                       fb  -= (lcd_line_length + width * (bpix / 8));
+               }
+               break;
+#endif /* CONFIG_BMP_32BPP */
        default:
                break;
        };
-- 
1.7.4.1
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