X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fcore%2Fvertexsetup.cpp;h=f6f0f58b65397cabdba6f9cbdc42bf027503689d;hb=6d33ca40415937790ed0cddc97148b5fbd90ccaf;hp=0cbe9a921a3dce33fc9190fbec59abc33654c719;hpb=2815449aa1c2a3c813f50ff85325cc2a3334430c;p=libs%2Fgl.git

diff --git a/source/core/vertexsetup.cpp b/source/core/vertexsetup.cpp
index 0cbe9a92..f6f0f58b 100644
--- a/source/core/vertexsetup.cpp
+++ b/source/core/vertexsetup.cpp
@@ -8,6 +8,7 @@
 #include "buffer.h"
 #include "error.h"
 #include "gl.h"
+#include "misc.h"
 #include "vertexarray.h"
 #include "vertexsetup.h"
 
@@ -38,7 +39,7 @@ VertexSetup::~VertexSetup()
 
 void VertexSetup::set_vertex_array(const VertexArray &a)
 {
-	if(!a.get_buffer())
+	if(!verify_array(a))
 		throw invalid_argument("VertexSetup::set_vertex_array");
 
 	vertex_array = &a;
@@ -50,7 +51,7 @@ void VertexSetup::set_instance_array(const VertexArray *a)
 {
 	if(a)
 	{
-		if(!a->get_buffer())
+		if(!verify_array(*a))
 			throw invalid_argument("VertexSetup::set_instance_array");
 
 		static Require req(ARB_instanced_arrays);
@@ -76,6 +77,23 @@ void VertexSetup::refresh()
 		set_instance_array(inst_array);
 }
 
+bool VertexSetup::verify_array(const VertexArray &array)
+{
+	if(!array.get_buffer())
+		return false;
+
+	static int max_attribs = -1;
+	if(max_attribs<0)
+		max_attribs = get_i(GL_MAX_VERTEX_ATTRIBS);
+
+	const VertexFormat &fmt = array.get_format();
+	for(const unsigned char *a=fmt.begin(); a!=fmt.end(); ++a)
+		if(static_cast<int>(get_attribute_semantic(*a))>=max_attribs)
+			return false;
+
+	return true;
+}
+
 unsigned VertexSetup::get_attribs(const VertexFormat &fmt)
 {
 	unsigned mask = 0;