X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fvertexarray.cpp;h=527052e9c0a36322c64aa6022da5e650a64e7e21;hb=a64e2e362cd7bce6f103f8878d69fcca4261bac9;hp=6c0e5f1aea363c8de02eeaea1c714f7ac1196645;hpb=ab59f5a9e66b3fc7872ad96ec7949940189f0819;p=libs%2Fgl.git

diff --git a/source/vertexarray.cpp b/source/vertexarray.cpp
index 6c0e5f1a..527052e9 100644
--- a/source/vertexarray.cpp
+++ b/source/vertexarray.cpp
@@ -18,7 +18,15 @@ VertexArray::VertexArray(const VertexFormat &f):
 }
 
 VertexArray::~VertexArray()
-{ }
+{
+	if(current()==this)
+	{
+		/* We must deactivate arrays here, or apply() would try to access deleted
+		data on the next invocation. */
+		set_current(0);
+		apply_arrays(0, &arrays, 0, 0);
+	}
+}
 
 void VertexArray::reset(const VertexFormat &f)
 {
@@ -125,7 +133,11 @@ void VertexArray::apply() const
 		throw invalid_operation("VertexArray::apply");
 
 	const VertexArray *old = current();
-	if(!set_current(this))
+	/* If the array has been modified, apply it even if it was the last one to
+	be applied.  This is necessary to get the data updated to vertex buffer, and
+	to resync things after a format change.  Radeon drivers also have some
+	problems with modifying vertex arrays without re-setting the pointers. */
+	if(!set_current(this) && !dirty)
 		return;
 
 	if(vbuf)
@@ -140,14 +152,22 @@ void VertexArray::apply() const
 
 	const float *base = (vbuf ? 0 : &data[0]);
 	unsigned stride_bytes = stride*sizeof(float);
+	apply_arrays(&arrays, (old ? &old->arrays : 0), base, stride_bytes);
+
+	if(vbuf)
+		Buffer::unbind_from(ARRAY_BUFFER);
+}
+
+void VertexArray::apply_arrays(const vector<Array> *arrays, const vector<Array> *old_arrays, const float *base, unsigned stride_bytes)
+{
 	unsigned active_tex = 0;
-	unsigned n_arrays = arrays.size();
-	if(old)
-		n_arrays = max(n_arrays, old->arrays.size());
+	unsigned n_arrays = arrays ? arrays->size() : 0;
+	if(old_arrays)
+		n_arrays = max<unsigned>(n_arrays, old_arrays->size());
 	for(unsigned i=0; i<n_arrays; ++i)
 	{
-		const Array *arr = ((i<arrays.size() && arrays[i].component) ? &arrays[i] : 0);
-		const Array *old_arr = ((old && i<old->arrays.size() && old->arrays[i].component) ? &old->arrays[i] : 0);
+		const Array *arr = ((arrays && i<arrays->size() && (*arrays)[i].component) ? &(*arrays)[i] : 0);
+		const Array *old_arr = ((old_arrays && i<old_arrays->size() && (*old_arrays)[i].component) ? &(*old_arrays)[i] : 0);
 		if(!arr && !old_arr)
 			continue;
 
@@ -217,9 +237,6 @@ void VertexArray::apply() const
 
 	if(active_tex)
 		glClientActiveTexture(GL_TEXTURE0);
-
-	if(vbuf)
-		Buffer::unbind_from(ARRAY_BUFFER);
 }