Change image library to `libpng` and improve how palettized textures are extracted (#133)

* trying to change to libpng

* It works again!

* move the libpng abstraction to another file

* GetBytesPerPixel

* I'm dumb

* fix warnings and remove dead code

* Fix CRC being called multiples times and clean up code

* textureDataRaw

* code clean

* Optimizations and removal of redundant data moves

* ups

* run format

* use fs::path more

* i'm dumb again

* Add a Readme

* remove texDeclarations

* handle tluts better

* vtx change and set segment file

* small changes

* Fix ZAPD ignoring textures declared in a scene in the XML

* small cleanup before tluts

* paletted images are broken

* kinda works for automatic textures

* fix automatic ci

* TEXTURE_DEBUG

* Remove extra `-j`

* Fix extraction of ci4

* Finally palettes OK

* ups

* Move textures map to ZFile

* Fix intersection warnings

* Add `TlutOffset` attribute

* Move Tlut declaration to a later step

* Hopefully the last cleanup of this branch

* Run format

* Always calc hash

* run format

* Delete stb

* fix merge issues

* run format

1 files changed, 18 insertions, 5 deletions

diff --git a/ZAPD/ZResource.cpp b/ZAPD/ZResource.cpp
index 466b3ab..fb76605 100644
--- a/ZAPD/ZResource.cpp
+++ b/ZAPD/ZResource.cpp
@@ -26,6 +26,7 @@ void ZResource::ExtractFromXML(tinyxml2::XMLElement* reader, const std::vector<u
 		ParseXML(reader);
 
 	ParseRawData();
+	CalcHash();
 }
 
 void ZResource::ExtractFromFile(const std::vector<uint8_t>& nRawData, uint32_t nRawDataIndex)
@@ -34,6 +35,7 @@ void ZResource::ExtractFromFile(const std::vector<uint8_t>& nRawData, uint32_t n
 	rawDataIndex = nRawDataIndex;
 
 	ParseRawData();
+	CalcHash();
 }
 
 void ZResource::ParseXML(tinyxml2::XMLElement* reader)
@@ -74,10 +76,12 @@ void ZResource::ParseXML(tinyxml2::XMLElement* reader)
 			                          "with inner element/child detected.\n",
 			                          name.c_str(), reader->Name()));
 		}
+
+		declaredInXml = true;
 	}
 }
 
-void ZResource::Save(const std::string& outFolder)
+void ZResource::Save(const fs::path& outFolder)
 {
 }
 
@@ -85,12 +89,12 @@ void ZResource::PreGenSourceFiles()
 {
 }
 
-string ZResource::GetName()
+const std::string& ZResource::GetName() const
 {
 	return name;
 }
 
-std::string ZResource::GetOutName()
+const std::string& ZResource::GetOutName() const
 {
 	return outName;
 }
@@ -120,16 +124,21 @@ std::string ZResource::GetExternalExtension()
 	return "";
 }
 
-vector<uint8_t> ZResource::GetRawData()
+const std::vector<uint8_t>& ZResource::GetRawData() const
 {
 	return rawData;
 }
 
-void ZResource::SetRawData(std::vector<uint8_t> nData)
+void ZResource::SetRawData(const std::vector<uint8_t>& nData)
 {
 	rawData = nData;
 }
 
+bool ZResource::WasDeclaredInXml() const
+{
+	return declaredInXml;
+}
+
 uint32_t ZResource::GetRawDataIndex()
 {
 	return rawDataIndex;
@@ -159,6 +168,10 @@ void ZResource::ParseRawData()
 {
 }
 
+void ZResource::DeclareReferences(const std::string& prefix)
+{
+}
+
 void ZResource::GenerateHLIntermediette(HLFileIntermediette& hlFile)
 {
 }