fixes

source/rendering/shader_program_lookups/mesh_lookup.cpp

@@ -0,0 +1,58 @@
+#include "rendering/shader_program_lookups/mesh_lookup.hpp"
+
+#include "util/logger.hpp" // TODO remove
+#include <bitset> // TODO remove
+
+namespace rendering::shader_program_lookups
+{
+
+void mesh_lookup::add(
+	const zgl::shader_program_handle& shader_program_handle
+) {
+	m_shader_program_lookup.add(
+		shader_program_handle,
+		shader_program::attributes::mesh::all,
+		shader_program::uniforms::mesh::all
+	);
+}
+
+std::optional<zgl::shader_program_handle> mesh_lookup::find(
+	requirements::mesh::flags requirements
+) const {
+	auto capability = shader_program::capabilities::mesh::type{};
+
+	auto index = std::size_t{};
+
+	auto requirement_flags = static_cast<ztu::u32>(requirements);
+
+	while (requirement_flags)
+	{
+		if (requirement_flags & 1)
+		{
+			const auto shader_requirements_index = requirements::mesh::all[index].shader_program_requirement_index;
+			const auto& [ attributes, uniforms ] = shader_program::capabilities::mesh::all[shader_requirements_index];
+			capability.attributes |= attributes;
+			capability.uniforms |= uniforms;
+		}
+
+		requirement_flags >>= 1;
+		++index;
+	}
+
+	// TODO if not textured and not colored add ucolor "for free"
+
+	ztu::logger::debug("attributes reqs: %", std::bitset<32>{ static_cast<unsigned long long>(static_cast<int>(capability.attributes)) });
+	ztu::logger::debug("uniforms reqs: %", std::bitset<32>{ static_cast<unsigned long long>(static_cast<int>(capability.uniforms)) });
+
+	return m_shader_program_lookup.find(
+		static_cast<ztu::u32>(capability.attributes),
+		static_cast<ztu::u32>(capability.uniforms),
+		shader_program::attributes::mesh::all
+	);
+}
+
+void mesh_lookup::print() {
+	m_shader_program_lookup.print();
+}
+
+}