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authorMartin Kiewitz2010-09-04 08:51:10 +0000
committerMartin Kiewitz2010-09-04 08:51:10 +0000
commit89d4e44281b7bf05b9ad234bdf242de32a47c688 (patch)
tree440b8c169122f4b10fe58cf3e21aeb5954182bc1 /engines
parent92c3a4b5aab20786ceceb62458142561bc569b64 (diff)
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SCI: doing detectDoSoundType() properly sci0early
checking, if sound resources are sci0early or late for sci0early games instead of hardcoding lsl2 svn-id: r52514
Diffstat (limited to 'engines')
-rw-r--r--engines/sci/engine/features.cpp9
-rw-r--r--engines/sci/resource.cpp13
-rw-r--r--engines/sci/resource.h2
3 files changed, 18 insertions, 6 deletions
diff --git a/engines/sci/engine/features.cpp b/engines/sci/engine/features.cpp
index 66bd9da8ec..97eec38caf 100644
--- a/engines/sci/engine/features.cpp
+++ b/engines/sci/engine/features.cpp
@@ -138,12 +138,9 @@ bool GameFeatures::autoDetectSoundType() {
SciVersion GameFeatures::detectDoSoundType() {
if (_doSoundType == SCI_VERSION_NONE) {
if (getSciVersion() == SCI_VERSION_0_EARLY) {
- // This game is using early SCI0 sound code (different headers than
- // SCI0 late)
- if (g_sci->getGameId() == GID_LSL2)
- _doSoundType = SCI_VERSION_0_LATE;
- else
- _doSoundType = SCI_VERSION_0_EARLY;
+ // Almost all of the SCI0EARLY games use different sound resources than
+ // SCI0LATE. Although the last SCI0EARLY game (lsl2) uses SCI0LATE resources
+ _doSoundType = g_sci->getResMan()->detectEarlySound() ? SCI_VERSION_0_EARLY : SCI_VERSION_0_LATE;
#ifdef ENABLE_SCI32
} else if (getSciVersion() >= SCI_VERSION_2_1) {
_doSoundType = SCI_VERSION_2_1;
diff --git a/engines/sci/resource.cpp b/engines/sci/resource.cpp
index 3b787cc673..4aff273610 100644
--- a/engines/sci/resource.cpp
+++ b/engines/sci/resource.cpp
@@ -2148,6 +2148,19 @@ bool ResourceManager::detectForPaletteMergingForSci11() {
return false;
}
+// is called on SCI0EARLY games to make sure that sound resources are in fact also SCI0EARLY
+bool ResourceManager::detectEarlySound() {
+ Resource *res = findResource(ResourceId(kResourceTypeSound, 1), 0);
+ if (res) {
+ if (res->size >= 0x22) {
+ if (READ_LE_UINT16(res->data + 0x1f) == 0) // channel 15 voice count + play mask is 0 in SCI0LATE
+ if (res->data[0x21] == 0) // last byte right before actual data is 0 as well
+ return false; // these 2 bytes are
+ }
+ }
+ return true;
+}
+
// Functions below are based on PD code by Brian Provinciano (SCI Studio)
bool ResourceManager::hasOldScriptHeader() {
Resource *res = findResource(ResourceId(kResourceTypeScript, 0), 0);
diff --git a/engines/sci/resource.h b/engines/sci/resource.h
index 62968a231e..53c00f6ec0 100644
--- a/engines/sci/resource.h
+++ b/engines/sci/resource.h
@@ -345,6 +345,8 @@ public:
bool detectFontExtended();
// Detects, if SCI1.1 game uses palette merging
bool detectForPaletteMergingForSci11();
+ // Detects, if SCI0EARLY game also has SCI0EARLY sound resources
+ bool detectEarlySound();
/**
* Finds the internal Sierra ID of the current game from script 0.