Fix inventory icons display in Amiga version of Waxworks.

svn-id: r27045

1 files changed, 40 insertions, 20 deletions

diff --git a/engines/agos/icons.cpp b/engines/agos/icons.cpp
index 9c8938bb97..e01d10a1c4 100644
--- a/engines/agos/icons.cpp
+++ b/engines/agos/icons.cpp
@@ -33,19 +33,32 @@ namespace AGOS {
 
 void AGOSEngine::loadIconFile() {
 	Common::File in;
-	uint size;
+	uint32 srcSize;
 
 	in.open(getFileName(GAME_ICONFILE));
 	if (in.isOpen() == false)
 		error("Can't open icons file '%s'", getFileName(GAME_ICONFILE));
 
-	size = in.size();
+	srcSize = in.size();
 
-	_iconFilePtr = (byte *)malloc(size);
-	if (_iconFilePtr == NULL)
-		error("Out of icon memory");
+	if (getGameType() == GType_WW && getPlatform() == Common::kPlatformAmiga) {
+		byte *srcBuf = (byte *)malloc(srcSize);
+		in.read(srcBuf, srcSize);
+
+		uint32 dstSize = READ_BE_UINT32(srcBuf + srcSize - 4);
+		_iconFilePtr = (byte *)malloc(dstSize);
+		if (_iconFilePtr == NULL)
+			error("Out of icon memory");
 
-	in.read(_iconFilePtr, size);
+		decrunchFile(srcBuf, _iconFilePtr, srcSize);
+		free(srcBuf);
+	} else {
+		_iconFilePtr = (byte *)malloc(srcSize);
+		if (_iconFilePtr == NULL)
+			error("Out of icon memory");
+
+		in.read(_iconFilePtr, srcSize);
+	}
 	in.close();
 }
 
@@ -66,15 +79,19 @@ void AGOSEngine::loadIconData() {
 // Thanks to Stuart Caie for providing the original
 // C conversion upon which this function is based.
 static void decompressIconPlanar(byte *dst, byte *src, uint width, uint height, byte base, uint pitch, bool decompress = true) {
-	byte icon_pln[288];
-	byte *i, *o, *srcPtr, x, y;
+	byte *i, *icon_pln, *o, *srcPtr;
+	byte x, y;
 
+	icon_pln = 0;
 	srcPtr = src;
+
 	if (decompress) {
+		icon_pln = (byte *)calloc(width * height, 1);
+
 		// Decode RLE planar icon data
 		i = src;
 		o = icon_pln;
-		while (o < &icon_pln[288]) {
+		while (o < &icon_pln[width * height]) {
 			x = *i++;
 			if (x < 128) {
 				do {
@@ -96,18 +113,20 @@ static void decompressIconPlanar(byte *dst, byte *src, uint width, uint height,
 	}
 
 	// Translate planar data to chunky (very slow method)
-	for (y = 0; y < 24; y++) {
+	for (y = 0; y < height * 2; y++) {
 		for (x = 0; x < 24; x++) {
 			byte pixel =
-				  (srcPtr[((     y) * 3) + (x >> 3)] & (1 << (7 - (x & 7))) ? 1 : 0)
-				| (srcPtr[((24 + y) * 3) + (x >> 3)] & (1 << (7 - (x & 7))) ? 2 : 0)
-				| (srcPtr[((48 + y) * 3) + (x >> 3)] & (1 << (7 - (x & 7))) ? 4 : 0)
-				| (srcPtr[((72 + y) * 3) + (x >> 3)] & (1 << (7 - (x & 7))) ? 8 : 0);
+				  (srcPtr[((height * 0 + y) * 3) + (x >> 3)] & (1 << (7 - (x & 7))) ? 1 : 0)
+				| (srcPtr[((height * 2 + y) * 3) + (x >> 3)] & (1 << (7 - (x & 7))) ? 2 : 0)
+				| (srcPtr[((height * 4 + y) * 3) + (x >> 3)] & (1 << (7 - (x & 7))) ? 4 : 0)
+				| (srcPtr[((height * 6 + y) * 3) + (x >> 3)] & (1 << (7 - (x & 7))) ? 8 : 0);
 			if (pixel)
 				dst[x] = pixel | base;
 		}
 		dst += pitch;
 	}
+
+	free(icon_pln);
 }
 
 static void decompressIcon(byte *dst, byte *src, uint width, uint height, byte base, uint pitch) {
@@ -205,7 +224,7 @@ void AGOSEngine_Simon1::drawIcon(WindowBlock *window, uint icon, uint x, uint y)
 		src = _iconFilePtr;
 		src += READ_BE_UINT32(&((uint32 *)src)[icon]);
 		uint8 color = (getFeatures() & GF_32COLOR) ? 16 : 240;
-		decompressIconPlanar(dst, src, 24, 24, color, _dxSurfacePitch);
+		decompressIconPlanar(dst, src, 24, 12, color, _dxSurfacePitch);
 	} else {
 		src = _iconFilePtr;
 		src += READ_LE_UINT16(&((uint16 *)src)[icon]);
@@ -227,8 +246,9 @@ void AGOSEngine_Waxworks::drawIcon(WindowBlock *window, uint icon, uint x, uint
 
 	uint8 color = dst[0] & 0xF0;
 	if (getPlatform() == Common::kPlatformAmiga) {
-		// TODO
-		return;
+		src = _iconFilePtr;
+		src += READ_BE_UINT32(&((uint32 *)src)[icon]);
+		decompressIconPlanar(dst, src, 24, 10, color, _dxSurfacePitch);
 	} else {
 		src = _iconFilePtr;
 		src += READ_LE_UINT16(&((uint16 *)src)[icon]);
@@ -252,7 +272,7 @@ void AGOSEngine_Elvira2::drawIcon(WindowBlock *window, uint icon, uint x, uint y
 	if (getFeatures() & GF_PLANAR) {
 		src = _iconFilePtr;
 		src += READ_BE_UINT32(&((uint32 *)src)[icon]);
-		decompressIconPlanar(dst, src, 24, 24, color, _dxSurfacePitch);
+		decompressIconPlanar(dst, src, 24, 12, color, _dxSurfacePitch);
 	} else {
 		src = _iconFilePtr;
 		src += READ_LE_UINT16(&((uint16 *)src)[icon]);
@@ -275,11 +295,11 @@ void AGOSEngine::drawIcon(WindowBlock *window, uint icon, uint x, uint y) {
 	if (getFeatures() & GF_PLANAR) {
 		src = _iconFilePtr;
 		src += READ_BE_UINT16(&((uint16 *)src)[icon]);
-		decompressIconPlanar(dst, src, 24, 24, 16, _dxSurfacePitch);
+		decompressIconPlanar(dst, src, 24, 12, 16, _dxSurfacePitch);
 	} else {
 		src = _iconFilePtr;
 		src += icon * 288;
-		decompressIconPlanar(dst, src, 24, 24, 16, _dxSurfacePitch, false);
+		decompressIconPlanar(dst, src, 24, 12, 16, _dxSurfacePitch, false);
 	}
 
 	_lockWord &= ~0x8000;