From 546ed0ff07cad63cb07612d8aff8d63213f71ecd Mon Sep 17 00:00:00 2001
From: aap <aap@papnet.eu>
Date: Wed, 11 Nov 2020 09:42:30 +0100
Subject: changes to RW layer so loading foreign files works

---
 src/rw/RwHelper.cpp | 77 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 77 insertions(+)

(limited to 'src/rw/RwHelper.cpp')

diff --git a/src/rw/RwHelper.cpp b/src/rw/RwHelper.cpp
index 35af1ebd..0069934f 100644
--- a/src/rw/RwHelper.cpp
+++ b/src/rw/RwHelper.cpp
@@ -649,6 +649,83 @@ WRAPPER void _TexturePoolsInitialise() { EAXJMP(0x598B10); }
 WRAPPER void _TexturePoolsShutdown() { EAXJMP(0x598B30); }
 #endif
 
+#ifdef LIBRW
+#include <rpmatfx.h>
+#include "VehicleModelInfo.h"
+
+int32
+findPlatform(rw::Atomic *a)
+{
+	rw::Geometry *g = a->geometry;
+	if(g->instData)
+		return g->instData->platform;
+	return 0;
+}
+
+// in CVehicleModelInfo in VC
+static RpMaterial*
+GetMatFXEffectMaterialCB(RpMaterial *material, void *data)
+{
+	if(RpMatFXMaterialGetEffects(material) == rpMATFXEFFECTNULL)
+		return material;
+	*(int*)data = RpMatFXMaterialGetEffects(material);
+	return nil;
+}
+
+// Game doesn't read atomic extensions so we never get any other than the default pipe,
+// but we need it for uninstancing
+void
+attachPipe(rw::Atomic *atomic)
+{
+	if(RpSkinGeometryGetSkin(RpAtomicGetGeometry(atomic)))
+		atomic->pipeline = rw::skinGlobals.pipelines[rw::platform];
+	else{
+		int fx = rpMATFXEFFECTNULL;
+		RpGeometryForAllMaterials(RpAtomicGetGeometry(atomic), GetMatFXEffectMaterialCB, &fx);
+		if(fx != rpMATFXEFFECTNULL)
+			RpMatFXAtomicEnableEffects(atomic);
+	}
+}
+
+// Attach pipes for the platform we have native data for so we can uninstance
+void
+switchPipes(rw::Atomic *a, int32 platform)
+{
+	if(a->pipeline && a->pipeline->platform != platform){
+		uint32 plgid = a->pipeline->pluginID;
+		switch(plgid){
+		// assume default pipe won't be attached explicitly
+		case rw::ID_SKIN:
+			a->pipeline = rw::skinGlobals.pipelines[platform];
+			break;
+		case rw::ID_MATFX:
+			a->pipeline = rw::matFXGlobals.pipelines[platform];
+			break;
+		}
+	}
+}
+
+RpAtomic*
+ConvertPlatformAtomic(RpAtomic *atomic, void *data)
+{
+	int32 driver = rw::platform;
+	int32 platform = findPlatform(atomic);
+	if(platform != 0 && platform != driver){
+		attachPipe(atomic);	// kludge
+		rw::ObjPipeline *origPipe = atomic->pipeline;
+		rw::platform = platform;
+		switchPipes(atomic, rw::platform);
+		if(atomic->geometry->flags & rw::Geometry::NATIVE)
+			atomic->uninstance();
+		// no ADC in this game
+		//rw::ps2::unconvertADC(atomic->geometry);
+		rw::platform = driver;
+		atomic->pipeline = origPipe;
+	}
+	return atomic;
+}
+#endif
+
 #if defined(FIX_BUGS) && defined(GTA_PC)
 RwUInt32 saved_alphafunc, saved_alpharef;
 
-- 
cgit v1.2.3