X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Frender%2Foccludedscene.cpp;h=644e380d15ab10a25917571fd29d61522040a99f;hp=b3346385a3a9525765fd8c727ec5cb140d541e45;hb=HEAD;hpb=dccad64b2ec82249d850b9745614042171499972

diff --git a/source/render/occludedscene.cpp b/source/render/occludedscene.cpp
index b3346385..cb37a60e 100644
--- a/source/render/occludedscene.cpp
+++ b/source/render/occludedscene.cpp
@@ -1,46 +1,42 @@
-#include <algorithm>
-#include <msp/gl/extensions/arb_occlusion_query.h>
-#include <msp/gl/extensions/arb_occlusion_query2.h>
+#include <msp/core/algorithm.h>
 #include "camera.h"
+#include "mesh.h"
 #include "occludedscene.h"
+#include "program.h"
 #include "renderer.h"
 #include "resources.h"
-#include "sphere.h"
 
 using namespace std;
 
 namespace Msp {
 namespace GL {
 
-OccludedScene::OccludedScene(Resources &resources):
-	bounding_mesh(resources.get<Mesh>("_occluder.mesh")),
-	bounding_shader(resources.get<Program>("_occluder.glsl.shader")),
-	occluder_min_size(0.25f),
-	cache_dirty(false)
+OccludedScene::OccludedScene():
+	bounding_mesh(Resources::get_global().get<Mesh>("_occluder.mesh")),
+	bounding_shader(Resources::get_global().get<Program>("occluder.glsl.shader")),
+	queries(OCCLUSION_QUERY, 0)
 {
-	static Require req(ARB_occlusion_query);
-	static Require req2(ARB_occlusion_query2);
-}
-
-OccludedScene::~OccludedScene()
-{
-	vector<unsigned> queries;
-	queries.reserve(occluded_cache.size());
-	for(OccludedArray::iterator i=occluded_cache.begin(); i!=occluded_cache.end(); ++i)
-		queries.push_back(i->query);
-	glDeleteQueries(queries.size(), &queries[0]);
+	no_color_write.write_mask = WRITE_NONE;
 }
 
 void OccludedScene::add(Renderable &r)
 {
-	renderables.insert(&r);
-	cache_dirty = true;
+	auto i = lower_bound(content, &r);
+	if(i==content.end() || *i!=&r)
+	{
+		content.insert(i, &r);
+		cache_dirty = true;
+	}
 }
 
 void OccludedScene::remove(Renderable &r)
 {
-	renderables.erase(&r);
-	cache_dirty = true;
+	auto i = lower_bound(content, &r);
+	if(i!=content.end() && *i==&r)
+	{
+		content.erase(i);
+		cache_dirty = true;
+	}
 }
 
 void OccludedScene::populate_cache() const
@@ -48,19 +44,14 @@ void OccludedScene::populate_cache() const
 	if(!cache_dirty)
 		return;
 
-	if(occluded_cache.size()<renderables.size())
-	{
-		unsigned old_size = occluded_cache.size();
-		occluded_cache.resize(renderables.size());
-		vector<unsigned> new_queries(occluded_cache.size()-old_size);
-		glGenQueries(new_queries.size(), &new_queries[0]);
-		for(unsigned i=0; i<new_queries.size(); ++i)
-			occluded_cache[old_size+i].query = new_queries[i];
-	}
+	if(queries.get_size()<content.size())
+		queries.resize(content.size());
+	if(occluded_cache.size()<content.size())
+		occluded_cache.resize(content.size());
 
-	OccludedArray::iterator j = occluded_cache.begin();
-	for(RenderableSet::iterator i=renderables.begin(); i!=renderables.end(); ++i, ++j)
-		j->renderable = *i;
+	auto j = occluded_cache.begin();
+	for(Renderable *r: content)
+		j++->renderable = r;
 	for(; j!=occluded_cache.end(); ++j)
 	{
 		j->renderable = 0;
@@ -73,19 +64,19 @@ void OccludedScene::populate_cache() const
 void OccludedScene::setup_frame(Renderer &renderer)
 {
 	populate_cache();
-	for(OccludedArray::const_iterator i=occluded_cache.begin(); i!=occluded_cache.end(); ++i)
-		i->renderable->setup_frame(renderer);
+	for(const OccludedRenderable &o: occluded_cache)
+		o.renderable->setup_frame(renderer);
 }
 
 void OccludedScene::finish_frame()
 {
-	for(OccludedArray::const_iterator i=occluded_cache.begin(); i!=occluded_cache.end(); ++i)
-		i->renderable->finish_frame();
+	for(const OccludedRenderable &o: occluded_cache)
+		o.renderable->finish_frame();
 }
 
-void OccludedScene::render(Renderer &renderer, const Tag &tag) const
+void OccludedScene::render(Renderer &renderer, Tag tag) const
 {
-	if(renderables.empty())
+	if(content.empty())
 		return;
 
 	populate_cache();
@@ -93,8 +84,8 @@ void OccludedScene::render(Renderer &renderer, const Tag &tag) const
 	const Camera *camera = renderer.get_camera();
 	if(!camera)
 	{
-		for(OccludedArray::const_iterator i=occluded_cache.begin(); i!=occluded_cache.end(); ++i)
-			renderer.render(*i->renderable, tag);
+		for(const OccludedRenderable &o: occluded_cache)
+			o.renderable->render(renderer, tag);
 		return;
 	}
 
@@ -104,10 +95,9 @@ void OccludedScene::render(Renderer &renderer, const Tag &tag) const
 	float frustum_h = tan(camera->get_field_of_view()/2.0f)*2.0f;
 
 	// Perform frustum culling and render any major occluders
-	bool use_frustum = setup_frustum(renderer);
-	for(OccludedArray::iterator i=occluded_cache.begin(); (i!=occluded_cache.end() && i->renderable); ++i)
+	for(auto i=occluded_cache.begin(); (i!=occluded_cache.end() && i->renderable); ++i)
 	{
-		i->in_frustum = (!use_frustum || !frustum_cull(*i->renderable));
+		i->in_frustum = camera->is_in_frustum(*i->renderable);
 		if(!i->in_frustum)
 			continue;
 
@@ -124,11 +114,11 @@ void OccludedScene::render(Renderer &renderer, const Tag &tag) const
 			i->occluder = true;
 
 		if(i->occluder)
-			renderer.render(*i->renderable, tag);
+			i->renderable->render(renderer, tag);
 	}
 
 	// Move all objects within the frustum to the beginning of the array
-	for(OccludedArray::iterator i=occluded_cache.begin(), j=i+renderables.size()-1; i!=j; )
+	for(auto i=occluded_cache.begin(), j=i+content.size()-1; i!=j; )
 	{
 		if(i->in_frustum)
 			++i;
@@ -142,45 +132,28 @@ void OccludedScene::render(Renderer &renderer, const Tag &tag) const
 		Renderer::Push push(renderer);
 		renderer.set_shader_program(&bounding_shader);
 
-		glColorMask(false, false, false, false);
-		glDepthMask(false);
+		renderer.set_blend(&no_color_write);
+		// XXX Preserve existing depth test predicate
+		renderer.set_depth_test(&no_depth_write);
 
 		// Fire off the occlusion queries
-		for(OccludedArray::const_iterator i=occluded_cache.begin(); (i!=occluded_cache.end() && i->in_frustum); ++i)
+		for(auto i=occluded_cache.begin(); (i!=occluded_cache.end() && i->in_frustum); ++i)
 			if(!i->occluder)
 			{
-				glBeginQuery(GL_ANY_SAMPLES_PASSED, i->query);
+				QueryPool::Activate activate_query(renderer, queries, i-occluded_cache.begin());
 				Renderer::Push push2(renderer);
-				renderer.transform(Matrix(*i->renderable->get_matrix())
+				renderer.set_matrix(Matrix(*i->renderable->get_matrix())
 					.translate(i->bounding_sphere->get_center())
 					.scale(i->bounding_sphere->get_radius()));
 				bounding_mesh.draw(renderer);
-				glEndQuery(GL_ANY_SAMPLES_PASSED);
 			}
-
-		glColorMask(true, true, true, true);
-		glDepthMask(true);
 	}
 
 	// Render anything that has a chance of being visible
-	for(OccludedArray::const_iterator i=occluded_cache.begin(); (i!=occluded_cache.end() && i->in_frustum); ++i)
-		if(!i->occluder)
-		{
-			unsigned any_passed = 0;
-			glGetQueryObjectuiv(i->query, GL_QUERY_RESULT, &any_passed);
-			if(any_passed)
-				renderer.render(*i->renderable, tag);
-		}
+	for(auto i=occluded_cache.begin(); (i!=occluded_cache.end() && i->in_frustum); ++i)
+		if(!i->occluder && queries.get_result(i-occluded_cache.begin()))
+			i->renderable->render(renderer, tag);
 }
 
-
-OccludedScene::OccludedRenderable::OccludedRenderable():
-	renderable(0),
-	bounding_sphere(0),
-	in_frustum(false),
-	occluder(false),
-	query(0)
-{ }
-
 } // namespace GL
 } // namespace Msp