X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fbuffer.cpp;h=61670cf9d378245f9a96ddead7f0fcea32ffb584;hb=1d24ddbc35f9e0480d30c66d47b7ea3834c15fbf;hp=5a0f4762a22b287ed266c2acb15850889acfc67a;hpb=b250a711295f5ba00114f11a5b1c855eebe08d26;p=libs%2Fgl.git

diff --git a/source/buffer.cpp b/source/buffer.cpp
index 5a0f4762..61670cf9 100644
--- a/source/buffer.cpp
+++ b/source/buffer.cpp
@@ -1,8 +1,10 @@
 #include <stdexcept>
-#include "arb_pixel_buffer_object.h"
-#include "arb_uniform_buffer_object.h"
-#include "arb_vertex_buffer_object.h"
+#include <msp/gl/extensions/arb_pixel_buffer_object.h>
+#include <msp/gl/extensions/arb_uniform_buffer_object.h>
+#include <msp/gl/extensions/arb_vertex_buffer_object.h>
 #include "buffer.h"
+#include "error.h"
+#include "mesh.h"
 #include "misc.h"
 
 using namespace std;
@@ -43,19 +45,15 @@ void Buffer::set_usage(BufferUsage u)
 
 void Buffer::data(unsigned sz, const void *d)
 {
-	const Buffer *old = current(type);
-	bind();
+	BindRestore _bind(this, type);
 	glBufferData(type, sz, d, usage);
 	size = sz;
-	restore(old, type);
 }
 
 void Buffer::sub_data(unsigned off, unsigned sz, const void *d)
 {
-	const Buffer *old = current(type);
-	bind();
+	BindRestore _bind(this, type);
 	glBufferSubData(type, off, sz, d);
-	restore(old, type);
 }
 
 BufferRange *Buffer::create_range(unsigned s, unsigned o)
@@ -67,12 +65,17 @@ void Buffer::bind_to(BufferType t) const
 {
 	if(t!=type)
 		require_buffer_type(t);
+	// Don't change the binding in a mesh's vertex array object
+	if(t==ELEMENT_ARRAY_BUFFER && Mesh::current())
+		throw invalid_operation("Buffer::bind_to(ELEMENT_ARRAY_BUFFER)");
 	if(set_current(t, this))
 		glBindBuffer(t, id);
 }
 
 void Buffer::unbind_from(BufferType type)
 {
+	if(type==ELEMENT_ARRAY_BUFFER && Mesh::current())
+		throw invalid_operation("Buffer::unbind_from(ELEMENT_ARRAY_BUFFER)");
 	if(set_current(type, 0))
 		glBindBuffer(type, 0);
 }
@@ -100,17 +103,6 @@ bool Buffer::set_current(BufferType type, const Buffer *buf)
 	return true;
 }
 
-void Buffer::restore(const Buffer *buf, BufferType type)
-{
-	if(buf!=current(type))
-	{
-		if(buf)
-			buf->bind_to(type);
-		else
-			unbind_from(type);
-	}
-}
-
 
 vector<const BufferRange *> BufferRange::bound_uniform;