X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Frender%2Fprogramdata.cpp;h=f3c6108c767284a9e158ee88df7fdd9a5986873d;hp=d934b48782c23ce181a5022b5fcfeb6009ad83b4;hb=bb386d8;hpb=fea2752a8abb1de5cc89addc92b804d9ff4fc89a

diff --git a/source/render/programdata.cpp b/source/render/programdata.cpp
index d934b487..f3c6108c 100644
--- a/source/render/programdata.cpp
+++ b/source/render/programdata.cpp
@@ -20,6 +20,7 @@ namespace GL {
 
 ProgramData::ProgramData(const Program *p):
 	tied_program(p),
+	generation(0),
 	last_buffer_block(0),
 	buffer(0),
 	dirty(0)
@@ -29,6 +30,7 @@ ProgramData::ProgramData(const Program *p):
 ProgramData::ProgramData(const ProgramData &other):
 	tied_program(other.tied_program),
 	uniforms(other.uniforms),
+	generation(other.generation),
 	last_buffer_block(0),
 	buffer(0),
 	dirty(0)
@@ -107,7 +109,7 @@ void ProgramData::uniform(Tag tag, Uniform *uni)
 		return add_uniform(tag, uni);
 
 	uniforms[i].replace_value(uni);
-	dirty |= 1<<i;
+	mark_dirty(1<<i);
 }
 
 template<typename T, typename V>
@@ -125,7 +127,7 @@ void ProgramData::uniform(Tag tag, V value)
 	else
 		uniforms[i].replace_value(new T(value));
 
-	dirty |= 1<<i;
+	mark_dirty(1<<i);
 }
 
 template<typename T, typename V>
@@ -144,7 +146,7 @@ void ProgramData::uniform_array(Tag tag, unsigned n, V value)
 	else
 		uniforms[i].replace_value(new UniformArray<T>(n, value));
 
-	dirty |= 1<<i;
+	mark_dirty(1<<i);
 }
 
 bool ProgramData::validate_tag(Tag tag) const
@@ -185,7 +187,14 @@ void ProgramData::add_uniform(Tag tag, Uniform *uni)
 	nu.value = uni;
 	uniforms.insert(j, nu);
 
-	dirty = ALL_ONES;
+	mark_dirty(ALL_ONES);
+}
+
+void ProgramData::mark_dirty(Mask bits)
+{
+	if(!dirty)
+		++generation;
+	dirty |= bits;
 }
 
 void ProgramData::uniform(Tag tag, const Uniform &u)
@@ -428,7 +437,7 @@ void ProgramData::remove_uniform(Tag tag)
 	delete i->value;
 	uniforms.erase(i);
 
-	dirty = ALL_ONES;
+	mark_dirty(ALL_ONES);
 }
 
 vector<Tag> ProgramData::get_uniform_tags() const