X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Frender%2Frenderer.cpp;h=50d3887369a30cbcdf6b8b1f99e83ea33ca08a94;hb=94cadd1618f93239b1cb0acbd4f958257c035c98;hp=4fb2b0c79bc01dc8dcbf6fbc58b79aea98b0f441;hpb=f1e31ee641f0cafdfe2015bff206b9ee2ad85abf;p=libs%2Fgl.git

diff --git a/source/render/renderer.cpp b/source/render/renderer.cpp
index 4fb2b0c7..50d38873 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"
@@ -20,7 +21,12 @@ 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);
 	shdata_stack.reserve(32);
@@ -32,12 +38,13 @@ void Renderer::begin()
 	if(current_state)
 		throw invalid_operation("Renderer::begin");
 
+	++frame_index;
 	state_stack.emplace_back();
 	current_state = &state_stack.back();
 
 	RendererBackend::begin();
 
-	add_shader_data(standard_shdata);
+	commands.begin_frame(frame_index);
 }
 
 void Renderer::end()
@@ -67,9 +74,14 @@ void Renderer::pop_state()
 	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;
 }
 
 Renderer::State &Renderer::get_state() const
@@ -81,10 +93,19 @@ Renderer::State &Renderer::get_state() const
 	return *current_state;
 }
 
+void Renderer::set_pipeline_key(uintptr_t key)
+{
+	State &state = get_state();
+	if(key!=state.pipeline_key)
+	{
+		state.pipeline_key = key;
+		changed |= PIPELINE_KEY;
+	}
+}
+
 void Renderer::set_camera(const Camera &c)
 {
 	get_state().camera = &c;
-	add_shader_data(c.get_shader_data());
 	set_matrix(Matrix());
 }
 
@@ -137,38 +158,62 @@ void Renderer::add_shader_data(const ProgramData &d)
 }
 
 void Renderer::set_texture(Tag tag, const Texture *tex, const Sampler *samp)
+{
+	set_texture(tag, tex, -1, samp);
+}
+
+void Renderer::set_texture(Tag tag, const Texture *tex, int level, const Sampler *samp)
 {
 	State &state = get_state();
 
 	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;
 
-	if(texture_stack.size()>state.texture_count)
+	set_resource(texture_stack, state.texture_count, tag, { tex, samp, level });
+}
+
+void Renderer::set_storage_texture(Tag tag, const Texture *tex)
+{
+	State &state = get_state();
+	set_resource(texture_stack, state.texture_count, tag, { tex, 0, 0 });
+}
+
+template<typename T>
+void Renderer::set_resource(vector<BoundResource<T>> &stack, unsigned &count, Tag tag, const T &res)
+{
+	if(stack.size()>count)
 	{
-		BoundTexture &bt = texture_stack[state.texture_count];
-		if(bt.tag==tag && bt.texture==tex && bt.sampler==samp)
+		BoundResource<T> &top = stack[count];
+		if(top.tag==tag && top.resource==res)
 		{
-			++state.texture_count;
+			++count;
 			return;
 		}
 		else
-			flush_textures();
+			flush_resources(stack, count);
 	}
 
-	for(auto i=texture_stack.end(); i!=texture_stack.begin(); )
+	for(auto i=stack.end(); i!=stack.begin(); )
 		if((--i)->tag==tag)
 		{
-			i->replaced = texture_stack.size();
+			i->replaced = stack.size();
 			break;
 		}
 
-	texture_stack.emplace_back();
-	BoundTexture &bound_tex = texture_stack.back();
-	bound_tex.tag = tag;
-	bound_tex.texture = tex;
-	bound_tex.sampler = samp;
-	state.texture_count = texture_stack.size();
+	stack.emplace_back();
+	BoundResource<T> &bound_res = stack.back();
+	bound_res.tag = tag;
+	bound_res.resource = res;
+	count = stack.size();
 }
 
 void Renderer::flush_shader_data()
@@ -179,15 +224,14 @@ void Renderer::flush_shader_data()
 		shdata_stack.erase(shdata_stack.begin()+state.shdata_count, shdata_stack.end());
 }
 
-void Renderer::flush_textures()
+template<typename T>
+void Renderer::flush_resources(vector<BoundResource<T>> &stack, unsigned &count)
 {
-	const State &state = get_state();
+	for(unsigned i=0; i<count; ++i)
+		if(stack[i].replaced>=static_cast<int>(count))
+			stack[i].replaced = -1;
 
-	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());
+	stack.erase(stack.begin()+count, stack.end());
 }
 
 void Renderer::set_vertex_setup(const VertexSetup *vs)
@@ -227,48 +271,49 @@ void Renderer::set_object_lod_bias(unsigned b)
 
 void Renderer::clear(const ClearValue *values)
 {
-	const State &state = get_state();
-
-	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();
-	pipeline_state.set_primitive_type(batch.get_type());
-	commands.use_pipeline(&pipeline_state);
+	batch.refresh(frame_index);
+	PipelineState &ps = get_pipeline_state();
+	ps.set_primitive_type(batch.get_type());
+	commands.use_pipeline(&ps);
 	commands.draw(batch);
 }
 
 void Renderer::draw_instanced(const Batch &batch, unsigned count)
 {
 	apply_state();
-	batch.refresh();
-	pipeline_state.set_primitive_type(batch.get_type());
-	commands.use_pipeline(&pipeline_state);
+	batch.refresh(frame_index);
+	PipelineState &ps = get_pipeline_state();
+	ps.set_primitive_type(batch.get_type());
+	commands.use_pipeline(&ps);
 	commands.draw_instanced(batch, count);
 }
 
-void Renderer::resolve_multisample(Framebuffer &target)
+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");
 
-	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");
-
-	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)
@@ -281,41 +326,76 @@ void Renderer::end_query(const QueryPool &pool, unsigned index)
 	commands.end_query(pool, index);
 }
 
-void Renderer::apply_state()
+PipelineState &Renderer::get_pipeline_state()
+{
+	if(changed&PIPELINE_KEY)
+	{
+		RendererBackend::set_pipeline_key(current_state->pipeline_key);
+		changed &= ~PIPELINE_KEY;
+	}
+
+	return RendererBackend::get_pipeline_state();
+}
+
+void Renderer::apply_framebuffer()
 {
 	const State &state = get_state();
 
+	PipelineState &ps = get_pipeline_state();
+
+	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);
+}
+
+void Renderer::apply_state()
+{
+	State &state = get_state();
+
 	if(!state.shprog)
 		throw invalid_operation("Renderer::apply_state");
 
-	pipeline_state.set_framebuffer(state.framebuffer);
-	pipeline_state.set_viewport(state.viewport);
-	pipeline_state.set_scissor(state.scissor);
+	apply_framebuffer();
 
-	bool shprog_changed = (state.shprog!=pipeline_state.get_shader_program());
-	pipeline_state.set_shader_program(state.shprog);
+	PipelineState &ps = get_pipeline_state();
+	bool pipeline_changed = (&ps!=last_pipeline);
+	last_pipeline = &ps;
 
-	if(changed&MATRIX)
-	{
-		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;
-	}
+	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);
 
-	if(shdata_changed || shprog_changed || extra_shdata)
+	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 || pipeline_changed || extra_shdata)
 	{
 		if(extra_shdata)
 			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;
@@ -324,30 +404,38 @@ void Renderer::apply_state()
 	if(state.vertex_setup)
 	{
 		if(const VertexArray *array = state.vertex_setup->get_vertex_array())
-			array->refresh();
+			array->refresh(frame_index);
 		if(const VertexArray *array = state.vertex_setup->get_instance_array())
-			array->refresh();
+			array->refresh(frame_index);
 	}
-	pipeline_state.set_vertex_setup(state.vertex_setup);
+	ps.set_vertex_setup(state.vertex_setup);
 
-	pipeline_state.set_front_face(state.front_face);
-	pipeline_state.set_face_cull(state.face_cull);
+	ps.set_front_face(state.front_face);
+	ps.set_face_cull(state.face_cull);
 
 	if(state.texture_count<texture_stack.size())
-		flush_textures();
+		flush_resources(texture_stack, state.texture_count);
 
-	for(const BoundTexture &t: texture_stack)
-		if(t.texture && t.replaced<0)
+	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)
-				pipeline_state.set_texture(t.binding, t.texture, t.sampler);
+			{
+				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);
+			}
 		}
 
-	pipeline_state.set_depth_test(state.depth_test);
-	pipeline_state.set_stencil_test(state.stencil_test);
-	pipeline_state.set_blend(state.blend);
+	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);
 }