X-Git-Url: http://git.mutantstargoat.com?p=demo;a=blobdiff_plain;f=src%2Fimage.cc;h=a99f75ade69ad7fc1c18e15e5560bffe74f36cd7;hp=01ee08f6952f3c40f8288627925ad483e42a3a70;hb=fd601d4218b63fdf92c5e4dfa32eac8adbda82fa;hpb=47982b199010496e34eefb95044275fb231cba18

diff --git a/src/image.cc b/src/image.cc
index 01ee08f..a99f75a 100644
--- a/src/image.cc
+++ b/src/image.cc
@@ -119,4 +119,23 @@ bool Image::load(const char *fname)
 
 	img_destroy(&ipm);
 	return true;
+}
+
+Vec4 Image::lookup_nearest(float u, float v) const
+{
+	int x = (int)(u * w) % w;
+	int y = (int)(v * h) % h;
+
+	if(is_float) {
+		return ((Vec4*)pixels)[y * w + x];
+	}
+
+	Vec4 color;
+	unsigned char *pptr = ((unsigned char*)pixels) + (y * w + x) * 4;
+	color.x = pptr[0] / 255.0;
+	color.y = pptr[1] / 255.0;
+	color.z = pptr[2] / 255.0;
+	color.w = pptr[3] / 255.0;
+
+	return color;
 }
\ No newline at end of file