X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fcore%2Ftexture3d.cpp;h=0ee2e800086b2b940e634352be929da5b4cacd27;hb=3efe3bab1c8290bd49a957ebec0ad97e58a35fcf;hp=496b5f1fbe80370fefda9e169ad428d98464d274;hpb=f73e671dcb36c097647cddbf5b1eaaad2ffc9299;p=libs%2Fgl.git

diff --git a/source/core/texture3d.cpp b/source/core/texture3d.cpp
index 496b5f1f..0ee2e800 100644
--- a/source/core/texture3d.cpp
+++ b/source/core/texture3d.cpp
@@ -15,7 +15,7 @@ void Texture3D::storage(PixelFormat fmt, unsigned wd, unsigned ht, unsigned dp,
 {
 	if(width>0)
 	{
-		if(fmt!=format || wd!=width || ht!=height || dp!=depth || (lv && lv!=levels))
+		if(fmt!=format || wd!=width || ht!=height || dp!=depth || (lv && lv!=n_levels))
 			throw incompatible_data("Texture3D::storage");
 		return;
 	}
@@ -26,9 +26,12 @@ void Texture3D::storage(PixelFormat fmt, unsigned wd, unsigned ht, unsigned dp,
 	width = wd;
 	height = ht;
 	depth = dp;
-	levels = get_n_levels();
+	unsigned size = max(width, height);
+	if(!is_array())
+		size = max(size, depth);
+	n_levels = count_levels(size);
 	if(lv>0)
-		levels = min(levels, lv);
+		n_levels = min(n_levels, lv);
 
 	allocate();
 }
@@ -43,7 +46,7 @@ void Texture3D::sub_image(unsigned level, unsigned x, unsigned y, unsigned z, un
 {
 	if(width==0 || height==0 || depth==0)
 		throw invalid_operation("Texture3D::sub_image");
-	if(level>=levels || x>width || x+wd>width || y>height || y+ht>height || z>depth || z+dp>depth)
+	if(level>=n_levels || x>width || x+wd>width || y>height || y+ht>height || z>depth || z+dp>depth)
 		throw out_of_range("Texture3D::sub_image");
 
 	Texture3DBackend::sub_image(level, x, y, z, wd, ht, dp, data);
@@ -63,16 +66,6 @@ void Texture3D::image(const Graphics::Image &img, unsigned lv)
 	image(0, img.get_pixels());
 }
 
-unsigned Texture3D::get_n_levels() const
-{
-	unsigned s = max(width, height);
-	if(!is_array())
-		s = max(s, depth);
-	unsigned n = 0;
-	for(; s; s>>=1, ++n) ;
-	return n;
-}
-
 LinAl::Vector<unsigned, 3> Texture3D::get_level_size(unsigned level) const
 {
 	unsigned w = width>>level;