SCI: Sabotage qfg1vga's speed test

This ensures the detected speed will end up at the highest level. This
improves the detail in Yorick's room (96), and slightly changes the
timing in other rooms.

Fixes bug #10296.

1 files changed, 22 insertions, 0 deletions

diff --git a/engines/sci/engine/script_patches.cpp b/engines/sci/engine/script_patches.cpp
index 254bfdb14c..5593123d3f 100644
--- a/engines/sci/engine/script_patches.cpp
+++ b/engines/sci/engine/script_patches.cpp
@@ -5183,6 +5183,27 @@ static const uint16 qfg1vgaPatchBrutusScriptFreeze[] = {
 	PATCH_END
 };
 
+// Speed up the speed test by a factor 50, ensuring the detected speed
+// will end up at the highest level. This improves the detail in
+// Yorick's room (96), and slightly changes the timing in other rooms.
+//
+// Method changed: speedTest::changeState
+static const uint16 qfg1vgaSignatureSpeedTest[] = {
+	0x76,                               // push0
+	0x43, 0x42, 0x00,                   // callk GetTime 0
+	SIG_MAGICDWORD,
+	0xa3, 0x01,                         // sal 1
+	0x35, 0x32,                         // ldi 50
+	0x65, 0x1a,                         // aTop cycles
+	SIG_END
+};
+
+static const uint16 qfg1vgaPatchSpeedTest[] = {
+	PATCH_ADDTOOFFSET(+6),
+	0x35, 0x01,                         // ldi 1
+	PATCH_END
+};
+
 //          script, description,                                      signature                            patch
 static const SciScriptPatcherEntry qfg1vgaSignatures[] = {
 	{  true,    41, "moving to castle gate",                       1, qfg1vgaSignatureMoveToCastleGate,    qfg1vgaPatchMoveToCastleGate },
@@ -5193,6 +5214,7 @@ static const SciScriptPatcherEntry qfg1vgaSignatures[] = {
 	{  true,   210, "cheetaur description fixed",                  1, qfg1vgaSignatureCheetaurDescription, qfg1vgaPatchCheetaurDescription },
 	{  true,   215, "fight event issue",                           1, qfg1vgaSignatureFightEvents,         qfg1vgaPatchFightEvents },
 	{  true,   216, "weapon master event issue",                   1, qfg1vgaSignatureFightEvents,         qfg1vgaPatchFightEvents },
+	{  true,   299, "speedtest",                                   1, qfg1vgaSignatureSpeedTest,           qfg1vgaPatchSpeedTest },
 	{  true,   331, "moving to crusher",                           1, qfg1vgaSignatureMoveToCrusher,       qfg1vgaPatchMoveToCrusher },
 	{  true,   814, "window text temp space",                      1, qfg1vgaSignatureTempSpace,           qfg1vgaPatchTempSpace },
 	{  true,   814, "dialog header offset",                        3, qfg1vgaSignatureDialogHeader,        qfg1vgaPatchDialogHeader },