X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fprogramdata.cpp;h=4d8ca4dd1adabc338967ab91bc2e817091d18a49;hb=24c58bfd2c3c80d879ec796b2f206bdba8d9e58d;hp=912bc3c88a54c25a8c52199e8552a0d0a2b5eecc;hpb=56133280d92c08c1c649a725260a6c4d5afb5e75;p=libs%2Fgl.git

diff --git a/source/programdata.cpp b/source/programdata.cpp
index 912bc3c8..4d8ca4dd 100644
--- a/source/programdata.cpp
+++ b/source/programdata.cpp
@@ -109,15 +109,16 @@ void ProgramData::uniform(const string &name, Uniform *uni)
 	if(i>=0)
 	{
 		uniforms[i].replace_value(uni);
-
-		if(static_cast<unsigned>(i)<MASK_BITS)
-			dirty |= 1<<i;
-		else  // Force a full update if the mask isn't wide enough
-			dirty = ALL_ONES;
-
+		dirty |= 1<<i;
 		return;
 	}
 
+	if(uniforms.size()>=MASK_BITS)
+	{
+		delete uni;
+		throw too_many_uniforms(name);
+	}
+
 	vector<NamedUniform>::iterator j = lower_bound(uniforms.begin(), uniforms.end(), name, uniform_name_compare);
 
 	NamedUniform nu;
@@ -513,10 +514,7 @@ ProgramData::SharedBlock *ProgramData::get_shared_block(const Program::UniformBl
 		if(info.bind_point>=0)
 		{
 			if(!buffer)
-			{
 				buffer = new Buffer(UNIFORM_BUFFER);
-				buffer->set_usage(STREAM_DRAW);
-			}
 
 			block = new UniformBlock(info.data_size);
 			block->use_buffer(buffer, last_block);
@@ -559,6 +557,7 @@ void ProgramData::apply() const
 
 		const Program::UniformBlockMap &prog_blocks = prog->get_uniform_blocks();
 
+		UniformBlock *old_last_block = last_block;
 		if(pu.dirty==ALL_ONES)
 		{
 			/* The set of uniforms has changed since this program was last used.
@@ -600,6 +599,22 @@ void ProgramData::apply() const
 		to avoid state thrashing. */
 		if(buffered_blocks_updated && !ARB_direct_state_access)
 			buffer->bind();
+
+		if(last_block!=old_last_block)
+		{
+			unsigned required_size = last_block->get_required_buffer_size();
+			if(last_block->get_required_buffer_size()>buffer->get_size())
+			{
+				if(buffer->get_size()>0)
+				{
+					delete buffer;
+					buffer = new Buffer(UNIFORM_BUFFER);
+					last_block->change_buffer(buffer);
+				}
+
+				buffer->storage(required_size);
+			}
+		}
 	}
 
 	for(vector<ProgramBlock>::iterator i=pu.blocks.begin(); i!=pu.blocks.end(); ++i)