X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Frender%2Frenderer.cpp;h=45ad120045397de5848e4cecfe1968f39e83433b;hp=03653edc1078583aa3378fec60b9ca730599c14d;hb=5871764de7aa23d2c40cac03ad9d07088fb57e06;hpb=6f39983060a27634c012f66c82fea0d09fea9774

diff --git a/source/render/renderer.cpp b/source/render/renderer.cpp
index 03653edc..45ad1200 100644
--- a/source/render/renderer.cpp
+++ b/source/render/renderer.cpp
@@ -1,440 +1,356 @@
 #include "batch.h"
 #include "buffer.h"
 #include "camera.h"
-#include "clipping.h"
 #include "error.h"
+#include "framebuffer.h"
 #include "lighting.h"
 #include "material.h"
 #include "program.h"
 #include "programdata.h"
 #include "renderable.h"
 #include "renderer.h"
+#include "resourcemanager.h"
 #include "sampler.h"
 #include "texture.h"
-#include "texturing.h"
-#include "texunit.h"
 #include "vertexarray.h"
 #include "vertexsetup.h"
-#include "windingtest.h"
 
 using namespace std;
 
 namespace Msp {
 namespace GL {
 
-Renderer::Renderer():
-	default_camera(0)
+Renderer::Renderer()
 {
-	init();
+	state_stack.reserve(16);
+	shdata_stack.reserve(32);
+	texture_stack.reserve(32);
 }
 
-Renderer::Renderer(const Camera *c):
-	default_camera(c)
+void Renderer::begin()
 {
-	init();
+	if(current_state)
+		throw invalid_operation("Renderer::begin");
+
+	state_stack.emplace_back();
+	current_state = &state_stack.back();
 
-	if(c)
-		set_camera(*c);
+	RendererBackend::begin();
+
+	add_shader_data(standard_shdata);
 }
 
-void Renderer::init()
+void Renderer::end()
 {
-	state_stack.reserve(16);
-	state_stack.push_back(State());
-	shdata_stack.reserve(32);
-	state = &state_stack.back();
+	if(!current_state || state_stack.size()>1)
+		throw invalid_operation("Renderer::end");
 
-	standard_shdata.uniform("projection_matrix", Matrix());
-	standard_shdata.uniform("eye_world_matrix", Matrix());
+	RendererBackend::end();
+
+	current_state = 0;
+	state_stack.clear();
+	texture_stack.clear();
+	shdata_stack.clear();
 }
 
-Renderer::~Renderer()
+void Renderer::push_state()
 {
-	end();
+	if(state_stack.empty())
+		throw invalid_operation("Renderer::push_state");
+
+	state_stack.push_back(state_stack.back());
+	current_state = &state_stack.back();
+}
+
+void Renderer::pop_state()
+{
+	if(state_stack.size()==1)
+		throw stack_underflow("Renderer::pop_state");
+
+	state_stack.pop_back();
+	current_state = &state_stack.back();
+	changed |= MATRIX;
+}
+
+Renderer::State &Renderer::get_state() const
+{
+#ifdef DEBUG
+	if(!current_state)
+		throw invalid_operation("Renderer::get_state");
+#endif
+	return *current_state;
 }
 
 void Renderer::set_camera(const Camera &c)
 {
-	state->camera = &c;
-	standard_shdata.uniform("projection_matrix", state->camera->get_projection_matrix());
-	standard_shdata.uniform("eye_world_matrix", state->camera->get_view_matrix());
-	changed |= STANDARD_SHDATA;
-	set_matrix(state->camera->get_view_matrix());
+	get_state().camera = &c;
+	add_shader_data(c.get_shader_data());
+	set_matrix(Matrix());
 }
 
 void Renderer::set_matrix(const Matrix &matrix)
 {
-	state->modelview_matrix = matrix;
+	get_state().model_matrix = matrix;
 	changed |= MATRIX;
 }
 
-void Renderer::transform(const Matrix &matrix)
+void Renderer::set_framebuffer(const Framebuffer *f)
 {
-	state->modelview_matrix *= matrix;
-	changed |= MATRIX;
+	get_state().framebuffer = f;
 }
 
-void Renderer::set_texture(Tag tag, const Texture *tex, const Sampler *samp)
+void Renderer::set_viewport(const Rect *v)
+{
+	get_state().viewport = v;
+}
+
+void Renderer::set_scissor(const Rect *s)
+{
+	get_state().scissor = s;
+}
+
+void Renderer::set_shader_program(const Program *p, const ProgramData *d)
+{
+	get_state().shprog = p;
+	if(p && d)
+		add_shader_data(*d);
+}
+
+void Renderer::add_shader_data(const ProgramData &d)
 {
-	set_texture(tag, -1, tex, samp);
+	State &state = get_state();
+
+	if(state.shdata_count<shdata_stack.size())
+	{
+		const BoundProgramData &top = shdata_stack.back();
+		if(top.shdata==&d && top.generation==d.get_generation())
+		{
+			++state.shdata_count;
+			return;
+		}
+	}
+
+	flush_shader_data();
+	shdata_stack.push_back(&d);
+	state.shdata_count = shdata_stack.size();
+	changed |= SHADER_DATA;
 }
 
-void Renderer::set_texture(Tag tag, int unit, const Texture *tex, const Sampler *samp)
+void Renderer::set_texture(Tag tag, const Texture *tex, const Sampler *samp)
 {
-	if(texture_stack.size()>state->texture_count)
+	State &state = get_state();
+
+	if(tex)
+		if(ResourceManager *res_mgr = tex->get_manager())
+			res_mgr->resource_used(*tex);
+
+	if(texture_stack.size()>state.texture_count)
 	{
-		BoundTexture &bt = texture_stack[state->texture_count];
-		if((!tag.id || bt.tag==tag) && (unit<0 || bt.unit==unit) && bt.texture==tex && bt.sampler==samp)
+		BoundTexture &bt = texture_stack[state.texture_count];
+		if(bt.tag==tag && bt.texture==tex && bt.sampler==samp)
 		{
-			++state->texture_count;
+			++state.texture_count;
 			return;
 		}
 		else
 			flush_textures();
 	}
 
-	for(vector<BoundTexture>::iterator i=texture_stack.end(); i!=texture_stack.begin(); )
-		if((--i)->tag==tag && i->unit==unit)
+	for(auto i=texture_stack.end(); i!=texture_stack.begin(); )
+		if((--i)->tag==tag)
 		{
 			i->replaced = texture_stack.size();
 			break;
 		}
 
-	texture_stack.push_back(BoundTexture());
+	texture_stack.emplace_back();
 	BoundTexture &bound_tex = texture_stack.back();
 	bound_tex.tag = tag;
-	bound_tex.unit = unit;
 	bound_tex.texture = tex;
 	bound_tex.sampler = samp;
-	state->texture_count = texture_stack.size();
+	state.texture_count = texture_stack.size();
 }
 
-void Renderer::set_texture(const Texture *t, const Sampler *s)
-{
-	set_texture(Tag(), 0, t, s);
-}
-
-void Renderer::flush_textures()
+void Renderer::flush_shader_data()
 {
-	for(unsigned i=0; i<texture_stack.size(); ++i)
-	{
-		BoundTexture &bt = texture_stack[i];
-		if(i>=state->texture_count && bt.unit>=0)
-		{
-			Texture::unbind_from(bt.unit);
-			Sampler::unbind_from(bt.unit);
-		}
-		else if(bt.replaced>=static_cast<int>(state->texture_count))
-			bt.replaced = -1;
-	}
+	const State &state = get_state();
 
-	texture_stack.erase(texture_stack.begin()+state->texture_count, texture_stack.end());
+	if(shdata_stack.size()>state.shdata_count)
+		shdata_stack.erase(shdata_stack.begin()+state.shdata_count, shdata_stack.end());
 }
 
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
-void Renderer::set_texturing(const Texturing *t)
+void Renderer::flush_textures()
 {
-	if(t)
-	{
-		unsigned n_units = TexUnit::get_n_units();
-		for(unsigned i=0; i<n_units; ++i)
-			if(const Texture *tex = t->get_attached_texture(i))
-				set_texture(Tag(), i, tex, t->get_attached_sampler(i));
-	}
-}
-#pragma GCC diagnostic pop
+	const State &state = get_state();
 
-unsigned Renderer::allocate_effect_texunit()
-{
-	return --state->lowest_effect_texunit;
-}
+	for(unsigned i=0; i<state.texture_count; ++i)
+		if(texture_stack[i].replaced>=static_cast<int>(state.texture_count))
+			texture_stack[i].replaced = -1;
 
-void Renderer::set_material(const Material *m)
-{
-	state->material = m;
-	changed |= MATERIAL_SHDATA;
+	texture_stack.erase(texture_stack.begin()+state.texture_count, texture_stack.end());
 }
 
-void Renderer::set_lighting(const Lighting *l)
+void Renderer::set_vertex_setup(const VertexSetup *vs)
 {
-	state->lighting = l;
-	state->lighting_matrix = state->modelview_matrix;
-	if(l)
-	{
-		l->update_shader_data(standard_shdata, state->lighting_matrix);
-		changed |= STANDARD_SHDATA;
-	}
+	get_state().vertex_setup = vs;
 }
 
-void Renderer::set_clipping(const Clipping *c)
+void Renderer::set_front_face(FaceWinding winding)
 {
-	state->clipping = c;
-	state->clipping_matrix = state->modelview_matrix;
-	if(c)
-	{
-		c->update_shader_data(standard_shdata, state->clipping_matrix);
-		changed |= STANDARD_SHDATA;
-	}
+	get_state().front_face = winding;
 }
 
-void Renderer::set_shader_program(const Program *p, const ProgramData *d)
+void Renderer::set_face_cull(CullMode cull)
 {
-	state->shprog = p;
-	if(p && d)
-		add_shader_data(*d);
+	get_state().face_cull = cull;
 }
 
-void Renderer::add_shader_data(const ProgramData &d)
+void Renderer::set_depth_test(const DepthTest *dt)
 {
-	if(state->shdata_count<shdata_stack.size() && shdata_stack[state->shdata_count]==&d)
-		++state->shdata_count;
-	else
-	{
-		flush_shader_data();
-		shdata_stack.push_back(&d);
-		state->shdata_count = shdata_stack.size();
-		changed |= SHADER_DATA;
-	}
+	get_state().depth_test = dt;
 }
 
-void Renderer::flush_shader_data()
+void Renderer::set_stencil_test(const StencilTest *st)
 {
-	if(shdata_stack.size()>state->shdata_count)
-		shdata_stack.erase(shdata_stack.begin()+state->shdata_count, shdata_stack.end());
+	get_state().stencil_test = st;
 }
 
-void Renderer::set_vertex_setup(const VertexSetup *vs)
+void Renderer::set_blend(const Blend *b)
 {
-	state->vertex_setup = vs;
+	get_state().blend = b;
 }
 
-void Renderer::set_winding_test(const WindingTest *w)
+void Renderer::set_object_lod_bias(unsigned b)
 {
-	state->winding_test = w;
+	get_state().object_lod_bias = b;
 }
 
-void Renderer::set_reverse_winding(bool r)
+void Renderer::clear(const ClearValue *values)
 {
-	state->reverse_winding = r;
-}
+	const State &state = get_state();
 
-void Renderer::set_object_lod_bias(unsigned b)
-{
-	state->object_lod_bias = b;
+	pipeline_state.set_framebuffer(state.framebuffer);
+	pipeline_state.set_viewport(state.viewport);
+	pipeline_state.set_scissor(state.scissor);
+	commands.use_pipeline(&pipeline_state);
+	commands.clear(values);
 }
 
-void Renderer::push_state()
+void Renderer::draw(const Batch &batch)
 {
-	state_stack.push_back(state_stack.back());
-	state = &state_stack.back();
+	apply_state();
+	batch.refresh();
+	commands.use_pipeline(&pipeline_state);
+	commands.draw(batch);
 }
 
-void Renderer::pop_state()
+void Renderer::draw_instanced(const Batch &batch, unsigned count)
 {
-	if(state_stack.size()==1)
-		throw stack_underflow("Renderer::pop_state");
-
-	const Camera *old_camera = state->camera;
-	const Lighting *old_lighting = state->lighting;
-	const Clipping *old_clipping = state->clipping;
-	state_stack.pop_back();
-	state = &state_stack.back();
-	changed |= MATRIX;
-	bool camera_changed = (state->camera!=old_camera);
-	if(camera_changed)
-	{
-		if(state->camera)
-		{
-			standard_shdata.uniform("projection_matrix", state->camera->get_projection_matrix());
-			standard_shdata.uniform("eye_world_matrix", state->camera->get_view_matrix());
-		}
-		else
-		{
-			standard_shdata.uniform("projection_matrix", Matrix());
-			standard_shdata.uniform("eye_world_matrix", Matrix());
-		}
-		changed |= STANDARD_SHDATA;
-	}
-	/* This actually should compare the relevant matrices rather than check for
-	camera, but in practice lighting and clipping is set right after the camera
-	and a boolean check is much faster than matrix comparison. */
-	if(state->lighting!=old_lighting || camera_changed)
-	{
-		if(state->lighting)
-		{
-			state->lighting->update_shader_data(standard_shdata, state->lighting_matrix);
-			changed |= STANDARD_SHDATA;
-		}
-	}
-	if(state->clipping!=old_clipping || camera_changed)
-	{
-		if(state->clipping)
-		{
-			state->clipping->update_shader_data(standard_shdata, state->clipping_matrix);
-			changed |= STANDARD_SHDATA;
-		}
-	}
+	apply_state();
+	batch.refresh();
+	commands.use_pipeline(&pipeline_state);
+	commands.draw_instanced(batch, count);
 }
 
-void Renderer::end()
+void Renderer::resolve_multisample(Framebuffer &target)
 {
-	if(state_stack.size()>1)
-		throw invalid_operation("Renderer::end");
-
-	*state = State();
-	if(default_camera)
-		set_camera(*default_camera);
-	else
-		standard_shdata.uniform("projection_matrix", Matrix());
-	shdata_stack.clear();
-	excluded.clear();
-
-	for(vector<BoundTexture>::iterator i=texture_stack.begin(); i!=texture_stack.end(); ++i)
-		if(i->unit>=0)
-		{
-			Texture::unbind_from(i->unit);
-			Sampler::unbind_from(i->unit);
-		}
-	Clipping::unbind();
-	Program::unbind();
-	VertexSetup::unbind();
-	Buffer::unbind_from(ELEMENT_ARRAY_BUFFER);
-	WindingTest::unbind();
-}
+	const State &state = get_state();
 
-void Renderer::exclude(const Renderable &renderable)
-{
-	excluded.insert(&renderable);
-}
+	if(!state.framebuffer)
+		throw invalid_operation("Renderer::resolve_multisample");
 
-void Renderer::include(const Renderable &renderable)
-{
-	excluded.erase(&renderable);
-}
+	unsigned width = state.framebuffer->get_width();
+	unsigned height = state.framebuffer->get_height();
+	if(target.get_width()!=width || target.get_height()!=height)
+		throw incompatible_data("Renderer::resolve_multisample");
 
-void Renderer::render(const Renderable &renderable, Tag tag)
-{
-	if(!excluded.count(&renderable))
-		renderable.render(*this, tag);
+	pipeline_state.set_framebuffer(state.framebuffer);
+	commands.use_pipeline(&pipeline_state);
+	commands.resolve_multisample(target);
 }
 
-void Renderer::draw(const Batch &batch)
+void Renderer::begin_query(const QueryPool &pool, unsigned index)
 {
-	apply_state();
-
-	batch.draw();
+	commands.begin_query(pool, index);
 }
 
-void Renderer::draw_instanced(const Batch &batch, unsigned count)
+void Renderer::end_query(const QueryPool &pool, unsigned index)
 {
-	apply_state();
-
-	batch.draw_instanced(count);
+	commands.end_query(pool, index);
 }
 
 void Renderer::apply_state()
 {
-	if(!state->shprog)
-		throw invalid_operation("Renderer::apply_state");
-
-	/* We (mostly) let the objects themselves figure out if the binding has
-	changed */
-
-	if(state->texture_count<texture_stack.size())
-		flush_textures();
+	const State &state = get_state();
 
-	for(vector<BoundTexture>::const_iterator i=texture_stack.begin(); i!=texture_stack.end(); ++i)
-	{
-		int unit = (i->tag.id ? state->shprog->get_uniform_binding(i->tag) : i->unit);
-		if(unit>=0)
-		{
-			if(i->texture)
-				i->texture->bind_to(unit);
-			if(i->sampler)
-				i->sampler->bind_to(unit);
-			i->unit = unit;
-		}
-	}
+	if(!state.shprog)
+		throw invalid_operation("Renderer::apply_state");
 
-	if(state->clipping)
-		state->clipping->bind();
-	else
-		Clipping::unbind();
+	pipeline_state.set_framebuffer(state.framebuffer);
+	pipeline_state.set_viewport(state.viewport);
+	pipeline_state.set_scissor(state.scissor);
 
-	bool shprog_changed = (state->shprog!=Program::current());
-	state->shprog->bind();
+	bool shprog_changed = (state.shprog!=pipeline_state.get_shader_program());
+	pipeline_state.set_shader_program(state.shprog);
 
 	if(changed&MATRIX)
 	{
-		standard_shdata.uniform("eye_obj_matrix", state->modelview_matrix);
-		LinAl::SquareMatrix<float, 3> nm = state->modelview_matrix.block<3, 3>(0, 0);
+		standard_shdata.uniform("world_obj_matrix", state.model_matrix);
+		LinAl::SquareMatrix<float, 3> nm = state.model_matrix.block<3, 3>(0, 0);
 		nm = transpose(invert(nm));
-		standard_shdata.uniform_matrix3("eye_obj_normal_matrix", &nm(0, 0));
-		changed = (changed&~MATRIX)|STANDARD_SHDATA;
-	}
-
-	if(state->material && ((changed&MATERIAL_SHDATA) || shprog_changed))
-	{
-		state->material->get_shader_data().apply();
-		changed &= ~MATERIAL_SHDATA;
-	}
-
-	if((changed&STANDARD_SHDATA) || shprog_changed)
-	{
-		standard_shdata.apply();
-		changed &= ~STANDARD_SHDATA;
+		standard_shdata.uniform("world_obj_normal_matrix", nm);
+		changed &= ~MATRIX;
 	}
 
-	bool extra_shdata = (shdata_stack.size()>state->shdata_count);
+	bool shdata_changed = changed&SHADER_DATA;
+	for(auto i=shdata_stack.begin(); (!shdata_changed && i!=shdata_stack.end()); ++i)
+		shdata_changed = (i->shdata->get_generation()!=i->generation);
+	bool extra_shdata = (shdata_stack.size()>state.shdata_count);
 
-	if((changed&SHADER_DATA) || shprog_changed || extra_shdata)
+	if(shdata_changed || shprog_changed || extra_shdata)
 	{
 		if(extra_shdata)
-			shdata_stack.erase(shdata_stack.begin()+state->shdata_count, shdata_stack.end());
-		for(vector<const ProgramData *>::const_iterator i=shdata_stack.begin(); i!=shdata_stack.end(); ++i)
-			(*i)->apply();
+			shdata_stack.erase(shdata_stack.begin()+state.shdata_count, shdata_stack.end());
+		for(const BoundProgramData &d: shdata_stack)
+		{
+			d.shdata->apply(*state.shprog, pipeline_state);
+			d.generation = d.shdata->get_generation();
+		}
 		changed &= ~SHADER_DATA;
 	}
 
-	if(state->vertex_setup)
-		state->vertex_setup->bind();
-	else
-		VertexSetup::unbind();
-
-	if(state->winding_test)
+	if(state.vertex_setup)
 	{
-		if(state->reverse_winding)
-			state->winding_test->get_reverse().bind();
-		else
-			state->winding_test->bind();
+		if(const VertexArray *array = state.vertex_setup->get_vertex_array())
+			array->refresh();
+		if(const VertexArray *array = state.vertex_setup->get_instance_array())
+			array->refresh();
 	}
-	else
-		WindingTest::unbind();
-}
+	pipeline_state.set_vertex_setup(state.vertex_setup);
 
+	pipeline_state.set_front_face(state.front_face);
+	pipeline_state.set_face_cull(state.face_cull);
 
-Renderer::BoundTexture::BoundTexture():
-	unit(-1),
-	texture(0),
-	sampler(0),
-	replaced(-1)
-{ }
+	if(state.texture_count<texture_stack.size())
+		flush_textures();
+
+	for(const BoundTexture &t: texture_stack)
+		if(t.texture && t.replaced<0)
+		{
+			if(t.binding<0 || shprog_changed)
+				t.binding = state.shprog->get_uniform_binding(t.tag);
+			if(t.binding>=0)
+				pipeline_state.set_texture(t.binding, t.texture, t.sampler);
+		}
+
+	pipeline_state.set_depth_test(state.depth_test);
+	pipeline_state.set_stencil_test(state.stencil_test);
+	pipeline_state.set_blend(state.blend);
+}
 
 
-Renderer::State::State():
-	camera(0),
-	texture_count(0),
-	lowest_effect_texunit(TexUnit::get_n_units()),
-	material(0),
-	lighting(0),
-	clipping(0),
-	shprog(0),
-	shdata_count(0),
-	vertex_setup(0),
-	winding_test(0),
-	reverse_winding(false),
-	object_lod_bias(0)
+Renderer::BoundProgramData::BoundProgramData(const ProgramData *d):
+	shdata(d)
 { }
 
 } // namespace GL