X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Frender%2Frenderer.cpp;h=5262d09a90ee2862e6c0db07dcd02e71044241fd;hp=447ab4e35de83faaad278b5df44e8861c7ea5d18;hb=HEAD;hpb=8544116298d7a1be176f52be48c9952529f5c446

diff --git a/source/render/renderer.cpp b/source/render/renderer.cpp
index 447ab4e3..7e010b3f 100644
--- a/source/render/renderer.cpp
+++ b/source/render/renderer.cpp
@@ -10,6 +10,7 @@
 #include "renderable.h"
 #include "renderer.h"
 #include "resourcemanager.h"
+#include "resources.h"
 #include "sampler.h"
 #include "texture.h"
 #include "vertexarray.h"
@@ -20,257 +21,303 @@ using namespace std;
 namespace Msp {
 namespace GL {
 
-Renderer::Renderer()
+const Tag Renderer::world_obj_matrix_tag("world_obj_matrix");
+const Tag Renderer::world_obj_normal_matrix_tag("world_obj_normal_matrix");
+
+Renderer::Renderer():
+	placeholder_texture(Resources::get_global().get<Texture>("_placeholder.png")),
+	default_sampler(Resources::get_global().get<Sampler>("_linear_clamp.samp"))
 {
 	state_stack.reserve(16);
-	state_stack.push_back(State());
 	shdata_stack.reserve(32);
-	state = &state_stack.back();
-	add_shader_data(standard_shdata);
+	texture_stack.reserve(32);
 }
 
-Renderer::~Renderer()
+void Renderer::begin()
 {
-	end();
+	if(current_state)
+		throw invalid_operation("Renderer::begin");
+
+	++frame_index;
+	state_stack.emplace_back();
+	current_state = &state_stack.back();
+
+	RendererBackend::begin();
+
+	commands.begin_frame(frame_index);
 }
 
-void Renderer::set_camera(const Camera &c)
+void Renderer::end()
 {
-	state->camera = &c;
-	add_shader_data(c.get_shader_data());
-	set_matrix(Matrix());
+	if(!current_state || state_stack.size()>1)
+		throw invalid_operation("Renderer::end");
+
+	RendererBackend::end();
+
+	current_state = 0;
+	state_stack.clear();
+	texture_stack.clear();
+	shdata_stack.clear();
 }
 
-void Renderer::set_matrix(const Matrix &matrix)
+void Renderer::push_state()
 {
-	state->model_matrix = matrix;
-	changed |= MATRIX;
+	if(state_stack.empty())
+		throw invalid_operation("Renderer::push_state");
+
+	state_stack.push_back(state_stack.back());
+	current_state = &state_stack.back();
 }
 
-void Renderer::transform(const Matrix &matrix)
+void Renderer::pop_state()
 {
-	state->model_matrix *= matrix;
+	if(state_stack.size()<=1)
+		throw stack_underflow("Renderer::pop_state");
+
+	uintptr_t old_pipeline = current_state->pipeline_key;
+
+	state_stack.pop_back();
+	current_state = &state_stack.back();
 	changed |= MATRIX;
+
+	if(current_state->pipeline_key!=old_pipeline)
+		changed |= PIPELINE_KEY;
 }
 
-void Renderer::set_framebuffer(const Framebuffer *f)
+Renderer::State &Renderer::get_state() const
 {
-	state->framebuffer = f;
+#ifdef DEBUG
+	if(!current_state)
+		throw invalid_operation("Renderer::get_state");
+#endif
+	return *current_state;
 }
 
-void Renderer::set_viewport(const Rect *v)
+void Renderer::set_pipeline_key(uintptr_t key)
 {
-	state->viewport = v;
+	State &state = get_state();
+	if(key!=state.pipeline_key)
+	{
+		state.pipeline_key = key;
+		changed |= PIPELINE_KEY;
+	}
 }
 
-void Renderer::set_scissor(const Rect *s)
+void Renderer::set_camera(const Camera &c)
 {
-	state->scissor = s;
+	get_state().camera = &c;
+	set_matrix(Matrix());
 }
 
-void Renderer::set_texture(Tag tag, const Texture *tex, const Sampler *samp)
+void Renderer::set_matrix(const Matrix &matrix)
 {
-	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(bt.tag==tag && bt.texture==tex && bt.sampler==samp)
-		{
-			++state->texture_count;
-			return;
-		}
-		else
-			flush_textures();
-	}
-
-	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());
-	BoundTexture &bound_tex = texture_stack.back();
-	bound_tex.tag = tag;
-	bound_tex.texture = tex;
-	bound_tex.sampler = samp;
-	state->texture_count = texture_stack.size();
+	get_state().model_matrix = matrix;
+	changed |= MATRIX;
 }
 
-void Renderer::flush_textures()
+void Renderer::set_framebuffer(const Framebuffer *f)
 {
-	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;
-
-	texture_stack.erase(texture_stack.begin()+state->texture_count, texture_stack.end());
+	get_state().framebuffer = f;
 }
 
-void Renderer::set_material(const Material *m)
+void Renderer::set_viewport(const Rect *v)
 {
-	if(m)
-		add_shader_data(m->get_shader_data());
+	get_state().viewport = v;
 }
 
-void Renderer::set_lighting(const Lighting *l)
+void Renderer::set_scissor(const Rect *s)
 {
-	if(l)
-		add_shader_data(l->get_shader_data());
+	get_state().scissor = s;
 }
 
 void Renderer::set_shader_program(const Program *p, const ProgramData *d)
 {
-	state->shprog = p;
+	get_state().shprog = p;
 	if(p && d)
 		add_shader_data(*d);
 }
 
 void Renderer::add_shader_data(const ProgramData &d)
 {
-	if(state->shdata_count<shdata_stack.size())
+	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;
+			++state.shdata_count;
 			return;
 		}
 	}
 
-	flush_shader_data_();
+	flush_shader_data();
 	shdata_stack.push_back(&d);
-	state->shdata_count = shdata_stack.size();
+	state.shdata_count = shdata_stack.size();
 	changed |= SHADER_DATA;
 }
 
-void Renderer::flush_shader_data_()
+void Renderer::set_texture(Tag tag, const Texture *tex, const Sampler *samp)
 {
-	if(shdata_stack.size()>state->shdata_count)
-		shdata_stack.erase(shdata_stack.begin()+state->shdata_count, shdata_stack.end());
+	set_texture(tag, tex, -1, samp);
 }
 
-void Renderer::set_vertex_setup(const VertexSetup *vs)
+void Renderer::set_texture(Tag tag, const Texture *tex, int level, const Sampler *samp)
 {
-	state->vertex_setup = vs;
-}
+	State &state = get_state();
 
-void Renderer::set_front_face(FaceWinding winding)
-{
-	state->front_face = winding;
+	if(tex)
+	{
+		if(ResourceManager *res_mgr = tex->get_manager())
+			res_mgr->resource_used(*tex);
+		if(!tex->is_loaded())
+			tex = &placeholder_texture;
+		if(!samp)
+			samp = &default_sampler;
+	}
+	else
+		samp = 0;
+
+	set_resource(texture_stack, state.texture_count, tag, { tex, samp, level });
 }
 
-void Renderer::set_face_cull(CullMode cull)
+void Renderer::set_storage_texture(Tag tag, const Texture *tex)
 {
-	state->face_cull = cull;
+	State &state = get_state();
+	set_resource(texture_stack, state.texture_count, tag, { tex, 0, 0 });
 }
 
-void Renderer::set_depth_test(const DepthTest *dt)
+template<typename T>
+void Renderer::set_resource(vector<BoundResource<T>> &stack, unsigned &count, Tag tag, const T &res)
 {
-	state->depth_test = dt;
+	if(stack.size()>count)
+	{
+		BoundResource<T> &top = stack[count];
+		if(top.tag==tag && top.resource==res)
+		{
+			++count;
+			return;
+		}
+		else
+			flush_resources(stack, count);
+	}
+
+	for(auto i=stack.end(); i!=stack.begin(); )
+		if((--i)->tag==tag)
+		{
+			i->replaced = stack.size();
+			break;
+		}
+
+	stack.emplace_back();
+	BoundResource<T> &bound_res = stack.back();
+	bound_res.tag = tag;
+	bound_res.resource = res;
+	count = stack.size();
 }
 
-void Renderer::set_stencil_test(const StencilTest *st)
+void Renderer::flush_shader_data()
 {
-	state->stencil_test = st;
+	const State &state = get_state();
+
+	if(shdata_stack.size()>state.shdata_count)
+		shdata_stack.erase(shdata_stack.begin()+state.shdata_count, shdata_stack.end());
 }
 
-void Renderer::set_blend(const Blend *b)
+template<typename T>
+void Renderer::flush_resources(vector<BoundResource<T>> &stack, unsigned &count)
 {
-	state->blend = b;
+	for(unsigned i=0; i<count; ++i)
+		if(stack[i].replaced>=static_cast<int>(count))
+			stack[i].replaced = -1;
+
+	stack.erase(stack.begin()+count, stack.end());
 }
 
-void Renderer::set_object_lod_bias(unsigned b)
+void Renderer::set_vertex_setup(const VertexSetup *vs)
 {
-	state->object_lod_bias = b;
+	get_state().vertex_setup = vs;
 }
 
-void Renderer::push_state()
+void Renderer::set_front_face(FaceWinding winding)
 {
-	state_stack.push_back(state_stack.back());
-	state = &state_stack.back();
+	get_state().front_face = winding;
 }
 
-void Renderer::pop_state()
+void Renderer::set_face_cull(CullMode cull)
 {
-	if(state_stack.size()==1)
-		throw stack_underflow("Renderer::pop_state");
-
-	state_stack.pop_back();
-	state = &state_stack.back();
-	changed |= MATRIX;
+	get_state().face_cull = cull;
 }
 
-void Renderer::end()
+void Renderer::set_depth_test(const DepthTest *dt)
 {
-	if(state_stack.size()>1)
-		throw invalid_operation("Renderer::end");
-
-	*state = State();
-	shdata_stack.clear();
-	add_shader_data(standard_shdata);
-	excluded.clear();
-
-	commands.use_pipeline(0);
+	get_state().depth_test = dt;
 }
 
-void Renderer::exclude(const Renderable &renderable)
+void Renderer::set_stencil_test(const StencilTest *st)
 {
-	excluded.insert(&renderable);
+	get_state().stencil_test = st;
 }
 
-void Renderer::include(const Renderable &renderable)
+void Renderer::set_blend(const Blend *b)
 {
-	excluded.erase(&renderable);
+	get_state().blend = b;
 }
 
-void Renderer::render(const Renderable &renderable, Tag tag)
+void Renderer::set_object_lod_bias(unsigned b)
 {
-	if(!excluded.count(&renderable))
-		renderable.render(*this, tag);
+	get_state().object_lod_bias = b;
 }
 
 void Renderer::clear(const ClearValue *values)
 {
-	pipeline_state.set_framebuffer(state->framebuffer);
-	pipeline_state.set_viewport(state->viewport);
-	pipeline_state.set_scissor(state->scissor);
-	commands.use_pipeline(&pipeline_state);
+	apply_framebuffer();
+	commands.use_pipeline(&get_pipeline_state());
 	commands.clear(values);
 }
 
 void Renderer::draw(const Batch &batch)
 {
 	apply_state();
-	batch.refresh();
-	commands.use_pipeline(&pipeline_state);
+	apply_batch(batch);
 	commands.draw(batch);
 }
 
 void Renderer::draw_instanced(const Batch &batch, unsigned count)
 {
 	apply_state();
-	batch.refresh();
-	commands.use_pipeline(&pipeline_state);
+	apply_batch(batch);
 	commands.draw_instanced(batch, count);
 }
 
-void Renderer::resolve_multisample(Framebuffer &target)
+void Renderer::apply_batch(const Batch &batch)
 {
-	if(!state->framebuffer)
-		throw invalid_operation("Renderer::resolve_multisample");
+	batch.refresh(frame_index);
+	PipelineState &ps = get_pipeline_state();
+	ps.set_primitive_type(batch.get_type());
+	if(batch.get_type()==PATCHES)
+		ps.set_patch_size(batch.get_patch_size());
+	commands.use_pipeline(&ps);
+}
 
-	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::dispatch(unsigned count_x, unsigned count_y, unsigned count_z)
+{
+	apply_state();
+	PipelineState &ps = get_pipeline_state();
+	commands.use_pipeline(&ps);
+	commands.dispatch(count_x, count_y, count_z);
+}
+
+void Renderer::resolve_multisample()
+{
+	const State &state = get_state();
+
+	if(!state.framebuffer)
+		throw invalid_operation("Renderer::resolve_multisample");
 
-	pipeline_state.set_framebuffer(state->framebuffer);
-	commands.use_pipeline(&pipeline_state);
-	commands.resolve_multisample(target);
+	apply_framebuffer();
+	commands.use_pipeline(&get_pipeline_state());
+	commands.resolve_multisample();
 }
 
 void Renderer::begin_query(const QueryPool &pool, unsigned index)
@@ -283,69 +330,116 @@ void Renderer::end_query(const QueryPool &pool, unsigned index)
 	commands.end_query(pool, index);
 }
 
-void Renderer::apply_state()
+PipelineState &Renderer::get_pipeline_state()
 {
-	if(!state->shprog)
-		throw invalid_operation("Renderer::apply_state");
-
-	if(changed&MATRIX)
+	if(changed&PIPELINE_KEY)
 	{
-		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("world_obj_normal_matrix", nm);
-		changed &= ~MATRIX;
+		RendererBackend::set_pipeline_key(current_state->pipeline_key);
+		changed &= ~PIPELINE_KEY;
 	}
 
-	pipeline_state.set_framebuffer(state->framebuffer);
-	pipeline_state.set_viewport(state->viewport);
-	pipeline_state.set_scissor(state->scissor);
+	return RendererBackend::get_pipeline_state();
+}
 
-	bool shprog_changed = (state->shprog!=pipeline_state.get_shader_program());
-	pipeline_state.set_shader_program(state->shprog);
+void Renderer::apply_framebuffer()
+{
+	const State &state = get_state();
 
-	if(state->vertex_setup)
-	{
-		if(const VertexArray *array = state->vertex_setup->get_vertex_array())
-			array->refresh();
-		if(const VertexArray *array = state->vertex_setup->get_instance_array())
-			array->refresh();
-	}
-	pipeline_state.set_vertex_setup(state->vertex_setup);
+	PipelineState &ps = get_pipeline_state();
 
-	pipeline_state.set_front_face(state->front_face);
-	pipeline_state.set_face_cull(state->face_cull);
+	ps.set_framebuffer(state.framebuffer);
+	static const Rect default_rect = Rect::max();
+	ps.set_viewport(state.viewport ? *state.viewport : default_rect);
+	ps.set_scissor(state.scissor ? *state.scissor : default_rect);
+}
 
-	if(state->texture_count<texture_stack.size())
-		flush_textures();
+void Renderer::apply_state()
+{
+	State &state = get_state();
 
-	for(const BoundTexture &t: texture_stack)
-	{
-		int unit = (t.tag.id ? state->shprog->get_uniform_binding(t.tag) : t.unit);
-		if(unit>=0)
-			pipeline_state.set_texture(unit, t.texture, t.sampler);
-	}
+	if(!state.shprog)
+		throw invalid_operation("Renderer::apply_state");
+
+	apply_framebuffer();
+
+	PipelineState &ps = get_pipeline_state();
+	bool pipeline_changed = (&ps!=last_pipeline);
+	last_pipeline = &ps;
+
+	bool shprog_changed = (state.shprog!=ps.get_shader_program());
+	ps.set_shader_program(state.shprog);
 
 	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);
+	bool extra_shdata = (shdata_stack.size()>state.shdata_count);
+
+	if(changed&CAMERA)
+	{
+		shdata_changed = true;
+		changed &= ~CAMERA;
+	}
+
+	if(changed&MATRIX)
+	{
+		standard_shdata.uniform(world_obj_matrix_tag, state.model_matrix);
+		LinAl::Matrix<float, 3, 3> nm = state.model_matrix.block<3, 3>(0, 0);
+		nm = transpose(invert(nm));
+		standard_shdata.uniform(world_obj_normal_matrix_tag, nm);
+		changed &= ~MATRIX;
+		shdata_changed = true;
+	}
 
-	if(shdata_changed || shprog_changed || extra_shdata)
+	if(shdata_changed || shprog_changed || pipeline_changed || extra_shdata)
 	{
 		if(extra_shdata)
-			shdata_stack.erase(shdata_stack.begin()+state->shdata_count, shdata_stack.end());
+			shdata_stack.erase(shdata_stack.begin()+state.shdata_count, shdata_stack.end());
+		standard_shdata.apply(*state.shprog, ps, frame_index);
+		if(state.camera)
+			state.camera->get_shader_data().apply(*state.shprog, ps, frame_index);
 		for(const BoundProgramData &d: shdata_stack)
 		{
-			d.shdata->apply(*state->shprog, pipeline_state);
+			d.shdata->apply(*state.shprog, ps, frame_index);
 			d.generation = d.shdata->get_generation();
 		}
 		changed &= ~SHADER_DATA;
 	}
 
-	pipeline_state.set_depth_test(state->depth_test);
-	pipeline_state.set_stencil_test(state->stencil_test);
-	pipeline_state.set_blend(state->blend);
+	if(state.vertex_setup)
+	{
+		if(const VertexArray *array = state.vertex_setup->get_vertex_array())
+			array->refresh(frame_index);
+		if(const VertexArray *array = state.vertex_setup->get_instance_array())
+			array->refresh(frame_index);
+	}
+	ps.set_vertex_setup(state.vertex_setup);
+
+	ps.set_front_face(state.front_face);
+	ps.set_face_cull(state.face_cull);
+
+	if(state.texture_count<texture_stack.size())
+		flush_resources(texture_stack, state.texture_count);
+
+	for(const BoundResource<SampledTexture> &t: texture_stack)
+		if(t.resource.texture && t.replaced<0)
+		{
+			if(t.binding<0 || shprog_changed)
+				t.binding = state.shprog->get_uniform_binding(t.tag);
+			if(t.binding>=0)
+			{
+				if(t.resource.sampler)
+					ps.set_texture(t.binding, t.resource.texture, t.resource.level, t.resource.sampler);
+				else
+					ps.set_storage_texture(t.binding, t.resource.texture);
+			}
+		}
+
+	static const DepthTest default_depth_test;
+	ps.set_depth_test(state.depth_test ? *state.depth_test : default_depth_test);
+	static const StencilTest default_stencil_test;
+	ps.set_stencil_test(state.stencil_test ? *state.stencil_test : default_stencil_test);
+	static const Blend default_blend;
+	ps.set_blend(state.blend ? *state.blend : default_blend);
 }