From 5b5cf905faab2fe405ed3f8dff696de701fd7dc9 Mon Sep 17 00:00:00 2001
From: Julien Templier <littleboy@scummvm.org>
Date: Wed, 13 Jul 2011 03:43:39 -0400
Subject: [PATCH] ASYLUM: Implement Screen::blitTranstable() and
 Screen::blitTranstableMirrored()

---
 engines/asylum/system/screen.cpp | 36 ++++++++++++++++++++++++++------
 engines/asylum/system/screen.h   |  4 ++--
 2 files changed, 32 insertions(+), 8 deletions(-)

diff --git a/engines/asylum/system/screen.cpp b/engines/asylum/system/screen.cpp
index 5651fdc4dd4..531e88c2db1 100644
--- a/engines/asylum/system/screen.cpp
+++ b/engines/asylum/system/screen.cpp
@@ -480,13 +480,15 @@ void Screen::blit(GraphicFrame *frame, Common::Rect *source, Common::Rect *desti
 			if (isMirrored) {
 				blitTranstableMirrored((byte *)_backBuffer.pixels    + destination->top * _backBuffer.pitch    + destination->left,
 				                       (byte *)frame->surface.pixels + source->top      * frame->surface.pitch + source->right - 1,
-				                       destination->width() + (destination->height() << 16),
+				                       destination->height(),
+				                       destination->width(),
 				                       destination->width() + frame->surface.pitch,
 				                       frame->surface.pitch - destination->width());
 			} else {
 				blitTranstable((byte *)_backBuffer.pixels    + destination->top * _backBuffer.pitch    + destination->left,
 				               (byte *)frame->surface.pixels + source->top      * frame->surface.pitch + source->left,
-				               destination->width() + (destination->height() << 16),
+				               destination->height(),
+				               destination->width(),
 				               frame->surface.pitch - destination->width(),
 				               _backBuffer.pitch    - destination->width());
 			}
@@ -532,12 +534,34 @@ void Screen::blit(GraphicFrame *frame, Common::Rect *source, Common::Rect *desti
 	}
 }
 
-void Screen::blitTranstable(byte *dstBuffer, byte *srcBuffer, int32 widthHeight, int32 srcPitch, int32 dstPitch) {
-	error("[Screen::blitTranstable] Not implemented");
+void Screen::blitTranstable(byte *dstBuffer, byte *srcBuffer, int16 height, int16 width, int32 srcPitch, int32 dstPitch) {
+	while (height--) {
+		for (int16 i = 0; i < width; i++) {
+			if (*srcBuffer)
+				*dstBuffer = _transTableIndex[*srcBuffer]; // FIXME: is this the correct offset (total table size: 65535)
+
+			dstBuffer++;
+			srcBuffer++;
+		}
+
+		dstBuffer += dstPitch;
+		srcBuffer += srcPitch;
+	}
 }
 
-void Screen::blitTranstableMirrored(byte *dstBuffer, byte *srcBuffer, int32 widthHeight, int32 srcPitch, int32 dstPitch) {
-	error("[Screen::blitTranstableMirrored] Not implemented");
+void Screen::blitTranstableMirrored(byte *dstBuffer, byte *srcBuffer, int16 height, int16 width, int32 srcPitch, int32 dstPitch) {
+	while (height--) {
+		for (int16 i = width; i; --i) {
+			if (*srcBuffer)
+				*dstBuffer = _transTableIndex[*srcBuffer]; // FIXME: is this the correct offset (total table size: 65535)
+
+			dstBuffer++;
+			srcBuffer--;
+		}
+
+		dstBuffer += dstPitch;
+		srcBuffer += srcPitch;
+	}
 }
 
 void Screen::blitMirrored(byte *dstBuffer, byte *srcBuffer, int16 height, int16 width, int32 srcPitch, int32 dstPitch) {
diff --git a/engines/asylum/system/screen.h b/engines/asylum/system/screen.h
index 0bfc48ef12e..9d2027461fa 100644
--- a/engines/asylum/system/screen.h
+++ b/engines/asylum/system/screen.h
@@ -152,8 +152,8 @@ private:
 
 	// Screen blitting
 	void blit(GraphicFrame *frame, Common::Rect *source, Common::Rect *destination, int32 flags);
-	void blitTranstable(byte *dstBuffer, byte *srcBuffer, int32 widthHeight, int32 srcPitch, int32 dstPitch);
-	void blitTranstableMirrored(byte *dstBuffer, byte *srcBuffer, int32 widthHeight, int32 srcPitch, int32 dstPitch);
+	void blitTranstable(byte *dstBuffer, byte *srcBuffer, int16 height, int16 width, int32 srcPitch, int32 dstPitch);
+	void blitTranstableMirrored(byte *dstBuffer, byte *srcBuffer, int16 height, int16 width, int32 srcPitch, int32 dstPitch);
 	void blitMirrored(byte *dstBuffer, byte *srcBuffer, int16 height, int16 width, int32 srcPitch, int32 dstPitch);
 	void blitMirroredColorKey(byte *dstBuffer, byte *srcBuffer, int16 height, int16 width, int32 srcPitch, int32 dstPitch);
 	void blitRaw(byte *dstBuffer, byte *srcBuffer, int16 height, int16 width, int32 srcPitch, int32 dstPitch);