From 1a4b287958cbc1b4efd9438ce18a193a263ea116 Mon Sep 17 00:00:00 2001
From: Jason Filby <jason.filby@gmail.com>
Date: Wed, 2 May 2001 12:29:51 +0000
Subject: [PATCH] VGA driver support for TransparentBlt

svn path=/trunk/; revision=1859
---
 .../drivers/dd/vga/display/objects/transblt.c | 29 +++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 reactos/drivers/dd/vga/display/objects/transblt.c

diff --git a/reactos/drivers/dd/vga/display/objects/transblt.c b/reactos/drivers/dd/vga/display/objects/transblt.c
new file mode 100644
index 00000000000..1a453fcba2f
--- /dev/null
+++ b/reactos/drivers/dd/vga/display/objects/transblt.c
@@ -0,0 +1,29 @@
+#include <ntddk.h>
+#define NDEBUG
+#include <debug.h>
+#include "../vgaddi.h"
+#include "../vgavideo/vgavideo.h"
+#include "brush.h"
+#include "bitblt.h"
+
+BOOL VGADDITransparentBlt(PSURFOBJ Dest, PSURFOBJ Source,
+                          PCLIPOBJ Clip, PXLATEOBJ ColorTranslation,
+                          PRECTL DestRect, PRECTL SourceRect,
+                          ULONG TransparentColor, ULONG Reserved)
+{
+  LONG dx, dy, sx, sy;
+
+  dx = abs(DestRect->right  - DestRect->left);
+  dy = abs(DestRect->bottom - DestRect->top);
+
+  sx = abs(SourceRect->right  - SourceRect->left);
+  sy = abs(SourceRect->bottom - SourceRect->top);
+
+  if(sx<dx) dx = sx;
+  if(sy<dy) dy = sy;
+
+  // FIXME: adjust using SourceRect
+  DIB_TransparentBltToVGA(DestRect->left, DestRect->top, dx, dy, Source->pvBits, Source->lDelta, TransparentColor);
+
+  return TRUE;
+}