remove 'name_len' from GLUniformBLock struct

src/shader.cpp

@@ -238,11 +238,10 @@ parseUniformBlocks(memory_arena* arena, shader_program* s, GLContext* gl_ctx)
 		ub.block_id = i;
 
 		GLchar block_name[256] = {0};
+		GLsizei name_len = 0;
 		glGetActiveUniformBlockName(
-				s->prog_id, i, 256, &ub.name_len, block_name);
-		ub.name_len++;	// NOTE: space for null term
-		ub.name = (char*) arenaAllocateBlock(arena, ub.name_len * sizeof(char));
-		std::strncpy(ub.name, block_name, ub.name_len);
+				s->prog_id, i, 256, &name_len, block_name);
+		ub.name = arenaCopyCStr(arena, block_name);
 
 		glGetActiveUniformBlockiv(s->prog_id, i,
 				GL_UNIFORM_BLOCK_ACTIVE_UNIFORMS, (GLint*) &ub.num_uniforms);

src/shader.h

@@ -46,7 +46,6 @@ struct GLUniformBlock
 	GLint binding_idx;
 	GLuint num_uniforms;
 	gl_uniform* uniforms;
-	GLsizei name_len;
 	char* name;
 };