Get the correct line_length.

Set the BPP and other fields and write it back, so the line_length comes back correctly.

Change-Id: I85e4e8223c79b9394ae1fb609b3026de62027ab8

1 files changed, 37 insertions, 2 deletions

diff --git a/minui/graphics.c b/minui/graphics.c
index 741d69f..b79631a 100644
--- a/minui/graphics.c
+++ b/minui/graphics.c
@@ -74,13 +74,48 @@ static int get_framebuffer(GGLSurface *fb)
         return -1;
     }
 
-    if (ioctl(fd, FBIOGET_FSCREENINFO, &fi) < 0) {
+    if (ioctl(fd, FBIOGET_VSCREENINFO, &vi) < 0) {
         perror("failed to get fb0 info");
         close(fd);
         return -1;
     }
 
-    if (ioctl(fd, FBIOGET_VSCREENINFO, &vi) < 0) {
+    vi.bits_per_pixel = PIXEL_SIZE * 8;
+    if (PIXEL_FORMAT == GGL_PIXEL_FORMAT_BGRA_8888) {
+      vi.red.offset     = 8;
+      vi.red.length     = 8;
+      vi.green.offset   = 16;
+      vi.green.length   = 8;
+      vi.blue.offset    = 24;
+      vi.blue.length    = 8;
+      vi.transp.offset  = 0;
+      vi.transp.length  = 8;
+    } else if (PIXEL_FORMAT == GGL_PIXEL_FORMAT_RGBX_8888) {
+      vi.red.offset     = 24;
+      vi.red.length     = 8;
+      vi.green.offset   = 16;
+      vi.green.length   = 8;
+      vi.blue.offset    = 8;
+      vi.blue.length    = 8;
+      vi.transp.offset  = 0;
+      vi.transp.length  = 8;
+    } else { /* RGB565*/
+      vi.red.offset     = 11;
+      vi.red.length     = 5;
+      vi.green.offset   = 5;
+      vi.green.length   = 6;
+      vi.blue.offset    = 0;
+      vi.blue.length    = 5;
+      vi.transp.offset  = 0;
+      vi.transp.length  = 0;
+    }
+    if (ioctl(fd, FBIOPUT_VSCREENINFO, &vi) < 0) {
+        perror("failed to put fb0 info");
+        close(fd);
+        return -1;
+    }
+
+    if (ioctl(fd, FBIOGET_FSCREENINFO, &fi) < 0) {
         perror("failed to get fb0 info");
         close(fd);
         return -1;