X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Frenderer.h;h=5536702b751a6d83288f14307eb6b6609b185dab;hb=0c731643d6363eb4c492e836ffb919cb7c0a3035;hp=866881c7b66aeebb8b913c43af4ee14b357c1885;hpb=f14435e58bfa0fa697a06ba9a454bb30cd37d9d8;p=libs%2Fgl.git

diff --git a/source/renderer.h b/source/renderer.h
index 866881c7..5536702b 100644
--- a/source/renderer.h
+++ b/source/renderer.h
@@ -24,7 +24,9 @@ particular, Objects and Scenes) can by rendered without a Renderer, using one
 will often be more efficient.  This is especially true for ObjectInstances.
 
 The Renderer works by deferring GL state changes until something is actually
-being drawn.  This avoids many unnecessary GL calls. */
+being drawn.  This avoids many unnecessary GL calls if consecutive renderables
+use the same resources.
+*/
 class Renderer
 {
 public:
@@ -70,6 +72,7 @@ private:
 	const VertexArray *vertex_array;
 	bool vertex_array_changed;
 	const Buffer *element_buffer;
+	bool shdata_changed;
 
 public:
 	Renderer(const Camera *);
@@ -82,8 +85,16 @@ public:
 	void set_texture(const Texture *);
 	void set_texturing(const Texturing *);
 	void set_material(const Material *);
-	void set_shader(const Program *, const ProgramData *);
-	void add_shader_data(const ProgramData *);
+
+	/** Sets the shader program to use.  An initial set of data can be set as
+	well, with the same semantics as add_shader_data. */
+	void set_shader_program(const Program *prog, const ProgramData *data = 0);
+
+	/** Adds another set of data to be use with shader programs.  The data is
+	independent of any shader program changes and remains in effect until the
+	Renderer state is popped. */
+	void add_shader_data(const ProgramData &data);
+
 	void set_vertex_array(const VertexArray *);
 	void set_element_buffer(const Buffer *);
 	void set_winding_test(const WindingTest *);
@@ -91,7 +102,9 @@ public:
 	void push_state();
 	void pop_state();
 
-	/** Prepares for temporarily bypassing the Renderer. */
+	/** Prepares for temporarily bypassing the Renderer by synchronizing the
+	current state with GL.  No additional call is necessary to resume using the
+	Renderer. */
 	void escape();
 
 	void draw(const Batch &);