X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Frender%2Frenderer.cpp;h=a8f5ce3ab07f9ea3c6ef867678043315f84394de;hp=ad7ba5a78e173bbfe7d13a62cfa87d3b66e01a42;hb=2d3113a7dbbe4be2f1d1e8980c1c4e42175163da;hpb=233dff2a6c552e08da832496aecd88ef4f8948f1

diff --git a/source/render/renderer.cpp b/source/render/renderer.cpp
index ad7ba5a7..a8f5ce3a 100644
--- a/source/render/renderer.cpp
+++ b/source/render/renderer.cpp
@@ -2,6 +2,7 @@
 #include "buffer.h"
 #include "camera.h"
 #include "clipping.h"
+#include "deviceinfo.h"
 #include "error.h"
 #include "lighting.h"
 #include "material.h"
@@ -43,9 +44,6 @@ void Renderer::init()
 	state_stack.push_back(State());
 	shdata_stack.reserve(32);
 	state = &state_stack.back();
-
-	standard_shdata.uniform("projection_matrix", Matrix());
-	standard_shdata.uniform("eye_world_matrix", Matrix());
 }
 
 Renderer::~Renderer()
@@ -56,37 +54,92 @@ Renderer::~Renderer()
 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());
+	changed |= CAMERA_SHDATA;
+	set_matrix(Matrix());
 }
 
 void Renderer::set_matrix(const Matrix &matrix)
 {
-	state->modelview_matrix = matrix;
+	state->model_matrix = matrix;
 	changed |= MATRIX;
 }
 
 void Renderer::transform(const Matrix &matrix)
 {
-	state->modelview_matrix *= matrix;
+	state->model_matrix *= matrix;
 	changed |= MATRIX;
 }
 
+void Renderer::set_texture(Tag tag, const Texture *tex, const Sampler *samp)
+{
+	set_texture(tag, -1, tex, samp);
+}
+
+void Renderer::set_texture(Tag tag, int unit, const Texture *tex, const Sampler *samp)
+{
+	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)
+		{
+			++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)
+		{
+			i->replaced = texture_stack.size();
+			break;
+		}
+
+	texture_stack.push_back(BoundTexture());
+	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();
+}
+
 void Renderer::set_texture(const Texture *t, const Sampler *s)
 {
-	state->texture = t;
-	state->sampler = s;
-	state->texturing = 0;
+	set_texture(Tag(), 0, t, s);
 }
 
+void Renderer::flush_textures()
+{
+	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;
+	}
+
+	texture_stack.erase(texture_stack.begin()+state->texture_count, texture_stack.end());
+}
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
 void Renderer::set_texturing(const Texturing *t)
 {
-	state->texturing = t;
-	state->texture = 0;
-	state->sampler = 0;
+	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
 
 unsigned Renderer::allocate_effect_texunit()
 {
@@ -95,30 +148,20 @@ unsigned Renderer::allocate_effect_texunit()
 
 void Renderer::set_material(const Material *m)
 {
-	state->material = m;
-	changed |= MATERIAL_SHDATA;
+	if(m)
+		add_shader_data(m->get_shader_data());
 }
 
 void Renderer::set_lighting(const Lighting *l)
 {
-	state->lighting = l;
-	state->lighting_matrix = state->modelview_matrix;
 	if(l)
-	{
-		l->update_shader_data(standard_shdata, state->lighting_matrix);
-		changed |= STANDARD_SHDATA;
-	}
+		add_shader_data(l->get_shader_data());
 }
 
 void Renderer::set_clipping(const Clipping *c)
 {
 	state->clipping = c;
-	state->clipping_matrix = state->modelview_matrix;
-	if(c)
-	{
-		c->update_shader_data(standard_shdata, state->clipping_matrix);
-		changed |= STANDARD_SHDATA;
-	}
+	changed |= CLIPPING_SHDATA;
 }
 
 void Renderer::set_shader_program(const Program *p, const ProgramData *d)
@@ -130,18 +173,23 @@ void Renderer::set_shader_program(const Program *p, const ProgramData *d)
 
 void Renderer::add_shader_data(const ProgramData &d)
 {
-	if(state->shdata_count<shdata_stack.size() && shdata_stack[state->shdata_count]==&d)
-		++state->shdata_count;
-	else
+	if(state->shdata_count<shdata_stack.size())
 	{
-		flush_shader_data();
-		shdata_stack.push_back(&d);
-		state->shdata_count = shdata_stack.size();
-		changed |= SHADER_DATA;
+		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::flush_shader_data()
+void Renderer::flush_shader_data_()
 {
 	if(shdata_stack.size()>state->shdata_count)
 		shdata_stack.erase(shdata_stack.begin()+state->shdata_count, shdata_stack.end());
@@ -179,45 +227,15 @@ void Renderer::pop_state()
 		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;
-		}
-	}
+		changed |= CAMERA_SHDATA;
+	if(state->clipping!=old_clipping)
+		changed |= CLIPPING_SHDATA;
 }
 
 void Renderer::end()
@@ -228,13 +246,15 @@ void Renderer::end()
 	*state = State();
 	if(default_camera)
 		set_camera(*default_camera);
-	else
-		standard_shdata.uniform("projection_matrix", Matrix());
 	shdata_stack.clear();
 	excluded.clear();
 
-	Texturing::unbind();
-	Texture::unbind_from(0);
+	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();
@@ -280,21 +300,20 @@ void Renderer::apply_state()
 	/* We (mostly) let the objects themselves figure out if the binding has
 	changed */
 
-	if(state->texturing)
-		state->texturing->bind();
-	else
+	if(state->texture_count<texture_stack.size())
+		flush_textures();
+
+	for(vector<BoundTexture>::const_iterator i=texture_stack.begin(); i!=texture_stack.end(); ++i)
 	{
-		Texturing::unbind();
-		if(state->texture)
+		int unit = (i->tag.id ? state->shprog->get_uniform_binding(i->tag) : i->unit);
+		if(unit>=0)
 		{
-			if(state->sampler)
-				state->sampler->bind_to(0);
-			else
-				Sampler::unbind_from(0);
-			state->texture->bind_to(0);
+			if(i->texture)
+				i->texture->bind_to(unit);
+			if(i->sampler)
+				i->sampler->bind_to(unit);
+			i->unit = unit;
 		}
-		else
-			Texture::unbind_from(0);
 	}
 
 	if(state->clipping)
@@ -307,17 +326,23 @@ void Renderer::apply_state()
 
 	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));
+		standard_shdata.uniform("world_obj_normal_matrix", nm);
 		changed = (changed&~MATRIX)|STANDARD_SHDATA;
 	}
 
-	if(state->material && ((changed&MATERIAL_SHDATA) || shprog_changed))
+	if(state->camera && ((changed&CAMERA_SHDATA) || shprog_changed))
 	{
-		state->material->get_shader_data().apply();
-		changed &= ~MATERIAL_SHDATA;
+		state->camera->get_shader_data().apply();
+		changed &= ~CAMERA_SHDATA;
+	}
+
+	if(state->clipping && ((changed&CLIPPING_SHDATA) || shprog_changed))
+	{
+		state->clipping->get_shader_data().apply();
+		changed &= ~CLIPPING_SHDATA;
 	}
 
 	if((changed&STANDARD_SHDATA) || shprog_changed)
@@ -326,14 +351,20 @@ void Renderer::apply_state()
 		changed &= ~STANDARD_SHDATA;
 	}
 
+	bool shdata_changed = changed&SHADER_DATA;
+	for(vector<BoundProgramData>::const_iterator 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();
+		for(vector<BoundProgramData>::const_iterator i=shdata_stack.begin(); i!=shdata_stack.end(); ++i)
+		{
+			i->shdata->apply();
+			i->generation = i->shdata->get_generation();
+		}
 		changed &= ~SHADER_DATA;
 	}
 
@@ -354,13 +385,24 @@ void Renderer::apply_state()
 }
 
 
+Renderer::BoundTexture::BoundTexture():
+	unit(-1),
+	texture(0),
+	sampler(0),
+	replaced(-1)
+{ }
+
+
+Renderer::BoundProgramData::BoundProgramData(const ProgramData *d):
+	shdata(d),
+	generation(0)
+{ }
+
+
 Renderer::State::State():
 	camera(0),
-	texture(0),
-	texturing(0),
-	lowest_effect_texunit(TexUnit::get_n_units()),
-	material(0),
-	lighting(0),
+	texture_count(0),
+	lowest_effect_texunit(Limits::get_global().max_texture_bindings),
 	clipping(0),
 	shprog(0),
 	shdata_count(0),