mirror of
https://github.com/MaSzyna-EU07/maszyna.git
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68 lines
2.0 KiB
C++
68 lines
2.0 KiB
C++
/*
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This Source Code Form is subject to the
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terms of the Mozilla Public License, v.
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2.0. If a copy of the MPL was not
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distributed with this file, You can
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obtain one at
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http://mozilla.org/MPL/2.0/.
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*/
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#include "stdafx.h"
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#include "rendering/renderer.h"
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#include "utilities/Logs.h"
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std::unique_ptr<gfx_renderer> GfxRenderer;
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bool gfx_renderer_factory::register_backend(const std::string &backend, gfx_renderer_factory::create_method func)
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{
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backends[backend] = func;
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return true;
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}
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std::unique_ptr<gfx_renderer> gfx_renderer_factory::create(const std::string &backend)
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{
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auto it = backends.find(backend);
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if (it != backends.end())
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return it->second();
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ErrorLog("renderer \"" + backend + "\" not found!");
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return nullptr;
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}
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gfx_renderer_factory *gfx_renderer_factory::get_instance()
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{
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if (!instance)
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instance = new gfx_renderer_factory();
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return instance;
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}
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gfx_renderer_factory *gfx_renderer_factory::instance;
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material_handle gfx_renderer::Terrain_Material( material_handle const Reuse, std::vector<gfx::terrain_layer> const &Layers, int const Samples, std::uint8_t const *Weights, glm::vec3 const &Placement )
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{
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// without blending the chunk gets the material which covers the most of it
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if( Layers.empty() ) {
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return null_handle;
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}
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std::size_t best { 0 };
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if( ( Weights != nullptr ) && ( Samples > 0 ) ) {
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auto const samples { static_cast<std::size_t>( Samples + 1 ) * ( Samples + 1 ) };
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std::uint64_t bestsum { 0 };
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for( std::size_t layer = 0; layer < Layers.size(); ++layer ) {
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std::uint64_t sum { 0 };
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for( std::size_t i = 0; i < samples; ++i ) {
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sum += Weights[ layer * samples + i ];
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}
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if( sum > bestsum ) {
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bestsum = sum;
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best = layer;
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}
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}
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}
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return Layers[ best ].material;
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}
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//---------------------------------------------------------------------------
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