X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fprogramdata.cpp;h=ed4b0a292b339ddc8c8bea858281949e96fca118;hb=6afbace895a7bbcf216ab8e48280ea0303ab5892;hp=b8a272c0fc0bde8a3699a81e347115327c41938f;hpb=3cdcc7f689b3868dd275774b9bd9adb5c436f244;p=libs%2Fgl.git

diff --git a/source/programdata.cpp b/source/programdata.cpp
index b8a272c0..ed4b0a29 100644
--- a/source/programdata.cpp
+++ b/source/programdata.cpp
@@ -1,7 +1,7 @@
+#include "arb_shader_objects.h"
 #include "buffer.h"
 #include "color.h"
 #include "error.h"
-#include "extension.h"
 #include "matrix.h"
 #include "program.h"
 #include "programdata.h"
@@ -19,7 +19,7 @@ ProgramData::ProgramData():
 	buffer(0),
 	changes(NO_CHANGES)
 {
-	static RequireExtension _ext("GL_ARB_shader_objects");
+	static Require _req(ARB_shader_objects);
 }
 
 // Blocks are intentionally left uncopied
@@ -39,6 +39,7 @@ ProgramData::~ProgramData()
 		delete i->second;
 	for(BlockMap::iterator i=blocks.begin(); i!=blocks.end(); ++i)
 		delete i->second.block;
+	delete buffer;
 }
 
 void ProgramData::uniform(const string &name, Uniform *uni)
@@ -46,6 +47,9 @@ void ProgramData::uniform(const string &name, Uniform *uni)
 	UniformMap::iterator i = uniforms.find(name);
 	if(i!=uniforms.end())
 	{
+		/* UniformBlock does not copy the uniforms, so existing blocks will be
+		left with stale pointers.  This is not a problem as long as no one stores
+		pointers to the blocks and expects them to stay valid. */
 		delete i->second;
 		i->second = uni;
 		changes = VALUES_CHANGED;
@@ -168,7 +172,10 @@ UniformBlock *ProgramData::create_block(const Program::UniformBlockInfo &info) c
 {
 	UniformBlock *block = new UniformBlock(info.data_size);
 	if(!buffer)
+	{
 		buffer = new Buffer(UNIFORM_BUFFER);
+		buffer->set_usage(STREAM_DRAW);
+	}
 	block->use_buffer(buffer, last_block);
 	last_block = block;
 	return block;