VOYEUR: Lock screen background now correctly showing

engines/voyeur/files.cpp

@@ -295,6 +295,8 @@ PictureResource *BoltFile::getPictureResource(uint32 id) {
 	if ((int32)id == -1)
 		return NULL;
 
+	if (id & 0xffff)
+		id <<= 16;
 	return getBoltEntry(id)._picResource;
 }
 

engines/voyeur/graphics.cpp

@@ -344,7 +344,31 @@ void GraphicsManager::sDrawPic(DisplayResource *srcDisplay, DisplayResource *des
 
 				// loc_2615E
 				if (srcFlags & 2) {
-					error("TODO: sDrawPic");
+					srcP = srcImgData + srcOffset;
+
+					if (destFlags & 8) {
+						error("TODO: sDrawPic");
+					} else {
+						// loc_25773
+						// Copy from screen to surface with transparency
+						destP = destImgData + screenOffset;
+						srcP = (byte *)_screenSurface.pixels + srcOffset;
+
+						if (srcFlags & 2) {
+							for (int yp = 0; yp < height1; ++yp) {
+								for (int xp = 0; xp < width2; ++xp, ++destP) {
+									byte srcPixel = *srcP++;
+									if (srcPixel)
+										*destP = srcPixel;
+								}
+
+								destP += widthDiff2;
+								srcP += widthDiff; 
+							}
+						} else {
+							error("TODO: sDrawPic");
+						}
+					}
 				} else {
 					if (srcFlags & 0x100) {
 						srcP = srcImgData;

engines/voyeur/voyeur.cpp

@@ -214,6 +214,7 @@ bool VoyeurEngine::doLock() {
 
 		Common::String password = lock._password;
 		srcPic = _bVoy->getPictureResource(0x702);
+		assert(srcPic);
 
 		// Get the mappings of keys on the keypad
 		keyData = _bVoy->memberAddr(0x705);