Add Truecolor 16 and 32bits support. Note that 24bits modes are not

supported since it's not easy to put 3 bytes accross 64Kb windows
of memory. This should not be such a problem with linear framebuffers.

There is no major interface modification except that the color type
becomes u_long instead of byte. So one just need to recompile his
application.

Approved by:	Soren Schmidt <sos@freebsd.dk>

1 files changed, 40 insertions, 1 deletions

diff --git a/lib/libvgl/bitmap.c b/lib/libvgl/bitmap.c
index 177d171..6498e26 100644
--- a/lib/libvgl/bitmap.c
+++ b/lib/libvgl/bitmap.c
@@ -143,12 +143,31 @@ WriteVerticalLine(VGLBitmap *dst, int x, int y, int width, byte *line)
       width -= i;
     }
     break;
+  case VIDBUF16S:
+  case VIDBUF24S:
+  case VIDBUF32S:
+    width = width * dst->PixelBytes;
+    pos = (dst->VXsize * y + x) * dst->PixelBytes;
+    while (width > 0) {
+      offset = VGLSetSegment(pos);
+      i = min(VGLAdpInfo.va_window_size - offset, width);
+      bcopy(line, dst->Bitmap + offset, i);
+      line += i;
+      pos += i;
+      width -= i;
+    }
+    break;
   case VIDBUF8:
   case MEMBUF:
     address = dst->Bitmap + dst->VXsize * y + x;
     bcopy(line, address, width);
     break;
-
+  case VIDBUF16:
+  case VIDBUF24:
+  case VIDBUF32:
+    address = dst->Bitmap + (dst->VXsize * y + x) * dst->PixelBytes;
+    bcopy(line, address, width * dst->PixelBytes);
+    break;
   default:
   }
 }
@@ -238,11 +257,31 @@ read_planar:
       width -= i;
     }
     break;
+  case VIDBUF16S:
+  case VIDBUF24S:
+  case VIDBUF32S:
+    width = width * src->PixelBytes;
+    pos = (src->VXsize * y + x) * src->PixelBytes;
+    while (width > 0) {
+      offset = VGLSetSegment(pos);
+      i = min(VGLAdpInfo.va_window_size - offset, width);
+      bcopy(src->Bitmap + offset, line, i);
+      line += i;
+      pos += i;
+      width -= i;
+    }
+    break;
   case VIDBUF8:
   case MEMBUF:
     address = src->Bitmap + src->VXsize * y + x;
     bcopy(address, line, width);
     break;
+  case VIDBUF16:
+  case VIDBUF24:
+  case VIDBUF32:
+    address = src->Bitmap + (src->VXsize * y + x) * src->PixelBytes;
+    bcopy(address, line, width * src->PixelBytes);
+    break;
   default:
   }
 }