X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=effect_chain.h;h=2f088b607feeec92fd3bb98c69be5cafde2329dd;hb=b564238fa1293c01c77bcabe7b2de267f146ab24;hp=358deedbb5e34064e4d2c52119db4c4c30413dca;hpb=bff07c51f937a4fdf005d31ef7e064467db67511;p=movit

diff --git a/effect_chain.h b/effect_chain.h
index 358deed..2f088b6 100644
--- a/effect_chain.h
+++ b/effect_chain.h
@@ -62,6 +62,10 @@ public:
 	std::vector<Node *> outgoing_links;
 	std::vector<Node *> incoming_links;
 
+	// For unit tests only. Do not use from other code.
+	// Will contain an arbitrary choice if the node is in multiple phases.
+	Phase *containing_phase;
+
 private:
 	// Logical size of the output of this effect, ie. the resolution
 	// you would get if you sampled it as a texture. If it is undefined
@@ -85,6 +89,10 @@ private:
 	AlphaType output_alpha_type;
 	bool needs_mipmaps;  // Directly or indirectly.
 
+	// Set if this effect, and all effects consuming output from this node
+	// (in the same phase) have one_to_one_sampling() set.
+	bool one_to_one_sampling;
+
 	friend class EffectChain;
 };
 
@@ -104,6 +112,11 @@ struct Phase {
 	// Identifier used to create unique variables in GLSL.
 	// Unique per-phase to increase cacheability of compiled shaders.
 	std::map<Node *, std::string> effect_ids;
+
+	// For measurement of GPU time used.
+	GLuint timer_query_object;
+	uint64_t time_elapsed_ns;
+	uint64_t num_measured_iterations;
 };
 
 class EffectChain {
@@ -161,6 +174,14 @@ public:
 
 	void finalize();
 
+	// Measure the GPU time used for each actual phase during rendering.
+	// Note that this is only available if GL_ARB_timer_query
+	// (or, equivalently, OpenGL 3.3) is available. Also note that measurement
+	// will incur a performance cost, as we wait for the measurements to
+	// complete at the end of rendering.
+	void enable_phase_timing(bool enable);
+	void reset_phase_timing();
+	void print_phase_timing();
 
 	//void render(unsigned char *src, unsigned char *dst);
 	void render_to_screen()
@@ -300,6 +321,8 @@ private:
 
 	ResourcePool *resource_pool;
 	bool owns_resource_pool;
+
+	bool do_phase_timing;
 };
 
 }  // namespace movit