diff options
Diffstat (limited to 'engines/sci/engine/kernel.h')
| -rw-r--r-- | engines/sci/engine/kernel.h | 48 |
1 files changed, 38 insertions, 10 deletions
diff --git a/engines/sci/engine/kernel.h b/engines/sci/engine/kernel.h index 9c92519cf0..4814bd0317 100644 --- a/engines/sci/engine/kernel.h +++ b/engines/sci/engine/kernel.h @@ -55,9 +55,18 @@ struct KernelFuncWithSignature { Common::String orig_name; /**< Original name, in case we couldn't map it */ }; +enum AutoDetectedFeatures { + kFeatureOldScriptHeader = 1 << 0, + kFeatureOldGfxFunctions = 1 << 1, + kFeatureLofsAbsolute = 1 << 2, + kFeatureSci01Sound = 1 << 3, + kFeatureSci1Sound = 1 << 4, + kFeatureSci0Sci1Table = 1 << 5 +}; + class Kernel { public: - Kernel(ResourceManager *resmgr, bool isOldSci0); + Kernel(ResourceManager *resmgr); ~Kernel(); uint getOpcodesSize() const { return _opcodes.size(); } @@ -84,20 +93,40 @@ public: bool hasKernelFunction(const char *functionName) const; /** + * Applies to all versions before 0.000.395 (i.e. KQ4 old, XMAS 1988 and LSL2). + * Old SCI versions used two word header for script blocks (first word equal + * to 0x82, meaning of the second one unknown). New SCI versions used one + * word header. + * Also, old SCI versions assign 120 degrees to left & right, and 60 to up + * and down. Later versions use an even 90 degree distribution. + */ + bool hasOldScriptHeader() const { return (features & kFeatureOldScriptHeader); } + + /** * Applies to all versions before 0.000.502 * Old SCI versions used to interpret the third DrawPic() parameter inversely, * with the opposite default value (obviously). * Also, they used 15 priority zones from 42 to 200 instead of 14 priority * zones from 42 to 190. */ - bool usesOldGfxFunctions() const { return _oldGfxFunctions; } + bool usesOldGfxFunctions() const { return (features & kFeatureOldGfxFunctions); } /** * Applies to all SCI1 versions after 1.000.200 * In late SCI1 versions, the argument of lofs[as] instructions * is absolute rather than relative. */ - bool hasLofsAbsolute() const { return _hasLofsAbsolute; } + bool hasLofsAbsolute() const { return (features & kFeatureLofsAbsolute); } + + /** + * Determines if the game is using SCI01 sound functions + */ + bool usesSci01SoundFunctions() const { return (features & kFeatureSci01Sound); } + + /** + * Determines if the game is using SCI1 sound functions + */ + bool usesSci1SoundFunctions() const { return (features & kFeatureSci1Sound); } // Script dissection/dumping functions void dissectScript(int scriptNumber, Vocabulary *vocab); @@ -127,17 +156,17 @@ private: /** * Loads the kernel selector names. */ - void loadSelectorNames(bool isOldSci0); + void loadSelectorNames(); /** - * Prints auto-detected features from selectors + * Maps special selectors */ - void printAutoDetectedFeatures(); + void mapSelectors(); /** - * Maps special selectors + * Detects SCI features based on the existence of certain selectors */ - void mapSelectors(); + void detectSciFeatures(); /** * Maps kernel functions @@ -151,8 +180,7 @@ private: bool loadOpcodes(); ResourceManager *_resmgr; - bool _oldGfxFunctions; - bool _hasLofsAbsolute; + uint32 features; // Kernel-related lists /** |