added sphere struct; implemented texture read and find callbacks

src/geometry.cpp

@@ -43,10 +43,8 @@ Geometry::create(int32 numVerts, int32 numTris, uint32 flags)
 	}
 	geo->morphTargets = new MorphTarget[1];
 	MorphTarget *m = geo->morphTargets;
-	m->boundingSphere[0] = 0.0f;
-	m->boundingSphere[1] = 0.0f;
-	m->boundingSphere[2] = 0.0f;
-	m->boundingSphere[3] = 0.0f;
+	m->boundingSphere.center.set(0.0f, 0.0f, 0.0f);
+	m->boundingSphere.radius = 0.0f;
 	m->vertices = NULL;
 	m->normals = NULL;
 	if(!(geo->geoflags & NATIVE) && geo->numVertices){
@@ -130,7 +128,7 @@ Geometry::streamRead(Stream *stream)
 
 	for(int32 i = 0; i < geo->numMorphTargets; i++){
 		MorphTarget *m = &geo->morphTargets[i];
-		stream->read(m->boundingSphere, 4*4);
+		stream->read(&m->boundingSphere, 4*4);
 		int32 hasVertices = stream->readI32();
 		int32 hasNormals = stream->readI32();
 		if(hasVertices)
@@ -217,7 +215,7 @@ Geometry::streamWrite(Stream *stream)
 
 	for(int32 i = 0; i < this->numMorphTargets; i++){
 		MorphTarget *m = &this->morphTargets[i];
-		stream->write(m->boundingSphere, 4*4);
+		stream->write(&m->boundingSphere, 4*4);
 		if(!(this->geoflags & NATIVE)){
 			stream->writeI32(m->vertices != NULL);
 			stream->writeI32(m->normals != NULL);
@@ -288,25 +286,21 @@ Geometry::calculateBoundingSphere(void)
 {
 	for(int32 i = 0; i < this->numMorphTargets; i++){
 		MorphTarget *m = &this->morphTargets[i];
-		float32 min[3] = {  1000000.0f,  1000000.0f,  1000000.0f };
-		float32 max[3] = { -1000000.0f, -1000000.0f, -1000000.0f };
+		V3d min( 1000000.0f,  1000000.0f,  1000000.0f);
+		V3d max(-1000000.0f, -1000000.0f, -1000000.0f);
 		float32 *v = m->vertices;
 		for(int32 j = 0; j < this->numVertices; j++){
-			if(v[0] > max[0]) max[0] = v[0];
-			if(v[0] < min[0]) min[0] = v[0];
-			if(v[1] > max[1]) max[1] = v[1];
-			if(v[1] < min[1]) min[1] = v[1];
-			if(v[2] > max[2]) max[2] = v[2];
-			if(v[2] < min[2]) min[2] = v[2];
+			if(v[0] > max.x) max.x = v[0];
+			if(v[0] < min.x) min.x = v[0];
+			if(v[1] > max.y) max.y = v[1];
+			if(v[1] < min.y) min.y = v[1];
+			if(v[2] > max.z) max.z = v[2];
+			if(v[2] < min.z) min.z = v[2];
 			v += 3;
 		}
-		m->boundingSphere[0] = (min[0] + max[0])/2.0f;
-		m->boundingSphere[1] = (min[1] + max[1])/2.0f;
-		m->boundingSphere[2] = (min[2] + max[2])/2.0f;
-		max[0] -= m->boundingSphere[0];
-		max[1] -= m->boundingSphere[1];
-		max[2] -= m->boundingSphere[2];
-		m->boundingSphere[3] = sqrt(max[0]*max[0] + max[1]*max[1] + max[2]*max[2]);
+		m->boundingSphere.center = scale(add(min, max), 1/2.0f);
+		max = sub(max, m->boundingSphere.center);
+		m->boundingSphere.radius = length(max);
 	}
 }
 

src/image.cpp

@@ -105,6 +105,12 @@ TexDictionary::streamGetSize(void)
 
 bool32 loadTextures;
 
+static Texture *defaultFindCB(const char *name);
+static Texture *defaultReadCB(const char *name, const char *mask);
+
+Texture *(*Texture::findCB)(const char *name) = defaultFindCB;
+Texture *(*Texture::readCB)(const char *name, const char *mask) = defaultReadCB;
+
 Texture*
 Texture::create(Raster *raster)
 {
@@ -135,7 +141,36 @@ Texture::destroy(void)
 	}
 }
 
-// TODO: do this properly, pretty ugly right now
+static Texture*
+defaultFindCB(const char *name)
+{
+	if(currentTexDictionary)
+		return currentTexDictionary->find(name);
+	// TODO: RW searches *all* TXDs otherwise
+	return NULL;
+}
+
+static Texture*
+defaultReadCB(const char *name, const char *mask)
+{
+	Texture *tex;
+	Image *img;
+	char *n = (char*)malloc(strlen(name) + 5);
+	strcpy(n, name);
+	strcat(n, ".tga");
+	img = readTGA(n);
+	free(n);
+	if(img){
+		tex = Texture::create(Raster::createFromImage(img));
+		strncpy(tex->name, name, 32);
+		if(mask)
+			strncpy(tex->mask, mask, 32);
+		img->destroy();
+		return tex;
+	}else
+		return NULL;
+}
+
 Texture*
 Texture::read(const char *name, const char *mask)
 {
@@ -143,31 +178,28 @@ Texture::read(const char *name, const char *mask)
 	Raster *raster = NULL;
 	Texture *tex;
 
-	if(currentTexDictionary && (tex = currentTexDictionary->find(name))){
+	if(tex = Texture::findCB(name)){
 		tex->refCount++;
 		return tex;
 	}
+	if(loadTextures){
+		tex = Texture::readCB(name, mask);
+		if(tex == NULL)
+			goto dummytex;
+	}else{
+	dummytex:
 		tex = Texture::create(NULL);
 		strncpy(tex->name, name, 32);
 		if(mask)
 			strncpy(tex->mask, mask, 32);
-	Image *img = NULL;
-	if(loadTextures){
-		char *n = (char*)malloc(strlen(name) + 5);
-		strcpy(n, name);
-		strcat(n, ".tga");
-		img = readTGA(n);
-		free(n);
-		if(img){
-			raster = Raster::createFromImage(img);
-			img->destroy();
-		}else
-			raster = Raster::create(0, 0, 0, 0x80);
-	}else
 		raster = Raster::create(0, 0, 0, 0x80);
 		tex->raster = raster;
-	if(currentTexDictionary)
+	}
+	if(currentTexDictionary){
+		if(tex->dict)
+			tex->inDict.remove();
 		currentTexDictionary->add(tex);
+	}
 	return tex;
 }
 
@@ -386,7 +418,7 @@ Image::getFilename(const char *name)
 {
 	FILE *f;
 	char *s, *p = searchPaths;
-	int len = strlen(name)+1;
+	size_t len = strlen(name)+1;
 	if(numSearchPaths == 0){
 		f = fopen(name, "rb");
 		if(f){

src/rwbase.h

@@ -152,6 +152,12 @@ bool32 matrixInvert(float32 *out, float32 *in);
 void matrixPrint(float32 *mat);
 bool32 equal(const Matrix &m1, const Matrix &m2);
 
+struct Sphere
+{
+	V3d center;
+	float32 radius;
+};
+
 class Stream
 {
 public:

src/rwobjects.h

@@ -318,6 +318,9 @@ struct Texture : PluginBase<Texture>
 	void streamWriteNative(Stream *stream);
 	uint32 streamGetSizeNative(void);
 
+	static Texture *(*findCB)(const char *name);
+	static Texture *(*readCB)(const char *name, const char *mask);
+
 	enum FilterMode {
 		NEAREST = 1,
 		LINEAR,
@@ -449,7 +452,7 @@ struct MeshHeader
 
 struct MorphTarget
 {
-	float32 boundingSphere[4];
+	Sphere boundingSphere;
 	float32 *vertices;
 	float32 *normals;
 };