X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Frenderer.h;h=18d3a41a7bf49dcf19737ce53a01f5a08cfc93e3;hb=6db6b7e49848e6bbc14f3ec8113ee5a941e4af07;hp=a45b2943004d0beb96c654ad0f6796de4b673e3a;hpb=8aea0f65f9ab7d603e47cf4479388af246cc8400;p=libs%2Fgl.git

diff --git a/source/renderer.h b/source/renderer.h
index a45b2943..18d3a41a 100644
--- a/source/renderer.h
+++ b/source/renderer.h
@@ -4,6 +4,7 @@
 #include <set>
 #include <vector>
 #include "matrix.h"
+#include "programdata.h"
 #include "tag.h"
 
 namespace Msp {
@@ -13,9 +14,9 @@ class Batch;
 class Buffer;
 class Camera;
 class Material;
+class Mesh;
 class Lighting;
 class Program;
-class ProgramData;
 class Renderable;
 class Texture;
 class Texturing;
@@ -64,11 +65,13 @@ private:
 	{
 		const Texture *texture;
 		const Texturing *texturing;
+		unsigned lowest_effect_texunit;
 		const Material *material;
 		const Lighting *lighting;
 		Matrix lighting_matrix;
 		const Program *shprog;
 		unsigned shdata_count;
+		const Mesh *mesh;
 		const WindingTest *winding_test;
 		bool reverse_winding;
 
@@ -86,27 +89,52 @@ private:
 		virtual void update();
 	};
 
+	enum ChangeMask
+	{
+		LEGACY_MATRIX = 1,
+		MODERN_MATRIX = 2,
+		MATRIX = LEGACY_MATRIX|MODERN_MATRIX,
+		LIGHTING = 4,
+		SHADER_DATA = 8
+	};
+
 	MtxStack mtx_stack;
-	bool mtx_changed;
+	unsigned char changed;
+	bool matrices_loaded;
+	unsigned shdata_applied;
 	const Camera *camera;
 	std::vector<State> state_stack;
 	State *state;
-	bool lighting_changed;
+	ProgramData standard_shdata;
 	std::vector<const ProgramData *> shdata_stack;
-	bool shdata_changed;
-	const Buffer *element_buffer;
 	std::set<const Renderable *> excluded;
 
 public:
 	Renderer(const Camera *);
 	~Renderer();
 
+	/** Resets all internal state and restarts rendering.  There must be no
+	unpopped state in the stack.  It is permissible to call begin() multiple
+	times without an intervening end(). */
+	void begin(const Camera *);
+
+	/** Deprecated as unsafe.  Use set_matrix() or transform() instead. */
 	MatrixStack &matrix_stack() { return mtx_stack; }
 
+	/** Replaces the Renderer's modelview matrix. */
+	void set_matrix(const Matrix &);
+
+	/** Applies a transform to the Renderer's modelview matrix. */
+	void transform(const Matrix &);
+
+	/** Returns the current modelview matrix. */
+	const Matrix &get_matrix() const { return mtx_stack.top(); }
+
 	const Camera *get_camera() const { return camera; }
 
 	void set_texture(const Texture *);
 	void set_texturing(const Texturing *);
+	unsigned allocate_effect_texunit();
 	void set_material(const Material *);
 
 	void set_lighting(const Lighting *);
@@ -120,7 +148,7 @@ public:
 	Renderer state is popped. */
 	void add_shader_data(const ProgramData &data);
 
-	void set_element_buffer(const Buffer *);
+	void set_mesh(const Mesh *);
 	void set_winding_test(const WindingTest *);
 	void set_reverse_winding(bool);
 
@@ -133,9 +161,14 @@ public:
 
 	/** Prepares for temporarily bypassing the Renderer by synchronizing the
 	current state with GL.  No additional call is necessary to resume using the
-	Renderer. */
+	Renderer.  DEPRECATED. */
 	void escape();
 
+	/** Unbinds all objects and resets related state.  There must be no unpopped
+	state in the stack.  Rendering with the same camera can be restarted without
+	an explicit begin() call. */
+	void end();
+
 	void exclude(const Renderable &);
 	void include(const Renderable &);
 
@@ -144,6 +177,7 @@ public:
 
 private:
 	void apply_state();
+	void reset_state();
 };
 
 } // namespace GL