From 3cae0f3452233bc03ce5964e0bf7567798f35856 Mon Sep 17 00:00:00 2001
From: Martin Kiewitz
Date: Tue, 27 Jul 2010 18:45:32 +0000
Subject: SCI: kCheckFreeSpace support for sci1.1

and possible sci32

svn-id: r51383
---
 engines/sci/engine/kernel_tables.h |  1 +
 engines/sci/engine/kfile.cpp       | 24 +++++++++++++++++++-----
 2 files changed, 20 insertions(+), 5 deletions(-)

diff --git a/engines/sci/engine/kernel_tables.h b/engines/sci/engine/kernel_tables.h
index ca4c8754a1..a2006a0578 100644
--- a/engines/sci/engine/kernel_tables.h
+++ b/engines/sci/engine/kernel_tables.h
@@ -312,6 +312,7 @@ static SciKernelMapEntry s_kernelMap[] = {
     { MAP_CALL(CelHigh),           SIG_EVERYWHERE,           "ii(i)",                 NULL,            NULL },
     { MAP_CALL(CelWide),           SIG_EVERYWHERE,           "ii(i)",                 NULL,            NULL },
     { MAP_CALL(CheckFreeSpace),    SIG_SCI32, SIGFOR_ALL,    "r.*",                   NULL,            NULL },
+    { MAP_CALL(CheckFreeSpace),    SIG_SCI11, SIGFOR_ALL,    "ri",                    NULL,            NULL },
     { MAP_CALL(CheckFreeSpace),    SIG_EVERYWHERE,           "r",                     NULL,            NULL },
     { MAP_CALL(CheckSaveGame),     SIG_EVERYWHERE,           ".*",                    NULL,            NULL },
     { MAP_CALL(Clone),             SIG_EVERYWHERE,           "o",                     NULL,            NULL },
diff --git a/engines/sci/engine/kfile.cpp b/engines/sci/engine/kfile.cpp
index 24c96be111..0cc562c7c1 100644
--- a/engines/sci/engine/kfile.cpp
+++ b/engines/sci/engine/kfile.cpp
@@ -365,11 +365,25 @@ reg_t kGetSaveDir(EngineState *s, int argc, reg_t *argv) {
 }
 
 reg_t kCheckFreeSpace(EngineState *s, int argc, reg_t *argv) {
-#ifdef ENABLE_SCI32
-	// TODO: SCI32 uses a parameter here.
-	if (argc > 1)
-		warning("kCheckFreeSpace called with %d parameter(s): %04x:%04x", argc, PRINT_REG(argv[1]));
-#endif
+	if (argc > 1) {
+		// SCI1.1/SCI32
+		// TODO: don't know if those are right for SCI32 as well
+		// Please note that sierra sci supported both calls either w/ or w/o opcode in SCI1.1
+		switch (argv[1].toUint16()) {
+		case 0: // return saved game size
+			return make_reg(0, 0); // we return 0
+
+		case 1: // return free harddisc space (shifted right somehow)
+			return make_reg(0, 0x7fff); // we return maximum
+
+		case 2: // same as call w/o opcode
+			break;
+			return make_reg(0, 1);
+
+		default:
+			error("kCheckFreeSpace: called with unknown sub-op %d", argv[1].toUint16());
+		}
+	}
 
 	Common::String path = s->_segMan->getString(argv[0]);
 
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