ScummEngine_v90he::processWizImage() cases 3 & 4

svn-id: r15490

1 files changed, 47 insertions, 1 deletions

diff --git a/scumm/script_v90he.cpp b/scumm/script_v90he.cpp
index 3789535117..1abbddeacd 100644
--- a/scumm/script_v90he.cpp
+++ b/scumm/script_v90he.cpp
@@ -563,9 +563,55 @@ void ScummEngine_v90he::processWizImage(const WizParameters *params) {
 	case 1:
 		displayWizComplexImage(params);
 		break;
-	case 2:
 	case 3:
+		if (params->processFlags & 0x800) {
+			File f;
+			if (!f.open((const char *)params->filename, File::kFileReadMode)) {
+				warning("Unable to open for read '%s'", params->filename);
+			} else {
+				uint32 id = f.readUint32BE();
+				if (id != MKID('AWIZ') && id != MKID('MULT')) {
+					VAR(0x20) = -1;
+				} else {
+					uint32 size = f.readUint32BE();
+					f.seek(0, SEEK_SET);
+					byte *p = createResource(rtImage, params->img.resNum, size);
+					if (f.read(p, size) != size) {
+						nukeResource(rtImage, params->img.resNum);
+						warning("i/o error when reading '%s'", params->filename);
+						VAR(0x20) = -2;
+					} else {
+						VAR(0x20) = 0;
+					}
+				}
+				f.close();
+			}
+		}
+		break;
 	case 4:
+		if (params->processFlags & 0x800) {
+			if (params->unk_14C != 0) {
+				VAR(0x77) = -1;
+			} else {
+				File f;
+				if (!f.open((const char *)params->filename, File::kFileWriteMode)) {
+					warning("Unable to open for write '%s'", params->filename);
+					VAR(0x77) = -3;
+				} else {
+					byte *p = getResourceAddress(rtImage, params->img.resNum);
+					uint32 size = READ_BE_UINT32(p + 4);
+					if (f.write(p, size) != size) {
+						warning("i/o error when writing '%s'", params->filename);
+						VAR(0x77) = -2;
+					} else {
+						VAR(0x77) = 0;
+					}
+					f.close();
+				}
+			}
+		}
+		break;
+	case 2:
 	case 6:
 	// HE 99+
 	case 7: