Using clang-tidy's `modernize-use-nullptr`. https://clang.llvm.org/extra/clang-tidy/checks/modernize-use-nullptr.html
121 lines
5.3 KiB
C++
121 lines
5.3 KiB
C++
/*************************************************************************/
|
|
/* register_types.cpp */
|
|
/*************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/*************************************************************************/
|
|
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
|
|
/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
|
|
/* */
|
|
/* Permission is hereby granted, free of charge, to any person obtaining */
|
|
/* a copy of this software and associated documentation files (the */
|
|
/* "Software"), to deal in the Software without restriction, including */
|
|
/* without limitation the rights to use, copy, modify, merge, publish, */
|
|
/* distribute, sublicense, and/or sell copies of the Software, and to */
|
|
/* permit persons to whom the Software is furnished to do so, subject to */
|
|
/* the following conditions: */
|
|
/* */
|
|
/* The above copyright notice and this permission notice shall be */
|
|
/* included in all copies or substantial portions of the Software. */
|
|
/* */
|
|
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
|
|
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
|
|
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
|
|
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
|
|
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
|
|
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
|
|
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
|
|
/*************************************************************************/
|
|
|
|
#include "register_types.h"
|
|
|
|
#include "core/error_macros.h"
|
|
|
|
#include "thirdparty/xatlas/xatlas.h"
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
extern bool (*array_mesh_lightmap_unwrap_callback)(float p_texel_size, const float *p_vertices, const float *p_normals, int p_vertex_count, const int *p_indices, const int *p_face_materials, int p_index_count, float **r_uv, int **r_vertex, int *r_vertex_count, int **r_index, int *r_index_count, int *r_size_hint_x, int *r_size_hint_y);
|
|
|
|
bool xatlas_mesh_lightmap_unwrap_callback(float p_texel_size, const float *p_vertices, const float *p_normals, int p_vertex_count, const int *p_indices, const int *p_face_materials, int p_index_count, float **r_uv, int **r_vertex, int *r_vertex_count, int **r_index, int *r_index_count, int *r_size_hint_x, int *r_size_hint_y) {
|
|
// set up input mesh
|
|
xatlas::MeshDecl input_mesh;
|
|
input_mesh.indexData = p_indices;
|
|
input_mesh.indexCount = p_index_count;
|
|
input_mesh.indexFormat = xatlas::IndexFormat::UInt32;
|
|
|
|
input_mesh.vertexCount = p_vertex_count;
|
|
input_mesh.vertexPositionData = p_vertices;
|
|
input_mesh.vertexPositionStride = sizeof(float) * 3;
|
|
input_mesh.vertexNormalData = p_normals;
|
|
input_mesh.vertexNormalStride = sizeof(uint32_t) * 3;
|
|
input_mesh.vertexUvData = nullptr;
|
|
input_mesh.vertexUvStride = 0;
|
|
|
|
xatlas::ChartOptions chart_options;
|
|
chart_options.fixWinding = true;
|
|
|
|
xatlas::PackOptions pack_options;
|
|
pack_options.padding = 1;
|
|
pack_options.maxChartSize = 4094; // Lightmap atlassing needs 2 for padding between meshes, so 4096-2
|
|
pack_options.blockAlign = true;
|
|
pack_options.texelsPerUnit = 1.0 / p_texel_size;
|
|
|
|
xatlas::Atlas *atlas = xatlas::Create();
|
|
|
|
xatlas::AddMeshError err = xatlas::AddMesh(atlas, input_mesh, 1);
|
|
ERR_FAIL_COND_V_MSG(err != xatlas::AddMeshError::Success, false, xatlas::StringForEnum(err));
|
|
|
|
xatlas::Generate(atlas, chart_options, pack_options);
|
|
|
|
*r_size_hint_x = atlas->width;
|
|
*r_size_hint_y = atlas->height;
|
|
|
|
float w = *r_size_hint_x;
|
|
float h = *r_size_hint_y;
|
|
|
|
if (w == 0 || h == 0) {
|
|
xatlas::Destroy(atlas);
|
|
return false; //could not bake because there is no area
|
|
}
|
|
|
|
const xatlas::Mesh &output = atlas->meshes[0];
|
|
|
|
*r_vertex = (int *)malloc(sizeof(int) * output.vertexCount);
|
|
ERR_FAIL_NULL_V_MSG(*r_vertex, false, "Out of memory.");
|
|
*r_uv = (float *)malloc(sizeof(float) * output.vertexCount * 2);
|
|
ERR_FAIL_NULL_V_MSG(*r_uv, false, "Out of memory.");
|
|
*r_index = (int *)malloc(sizeof(int) * output.indexCount);
|
|
ERR_FAIL_NULL_V_MSG(*r_index, false, "Out of memory.");
|
|
|
|
float max_x = 0;
|
|
float max_y = 0;
|
|
for (uint32_t i = 0; i < output.vertexCount; i++) {
|
|
(*r_vertex)[i] = output.vertexArray[i].xref;
|
|
(*r_uv)[i * 2 + 0] = output.vertexArray[i].uv[0] / w;
|
|
(*r_uv)[i * 2 + 1] = output.vertexArray[i].uv[1] / h;
|
|
max_x = MAX(max_x, output.vertexArray[i].uv[0]);
|
|
max_y = MAX(max_y, output.vertexArray[i].uv[1]);
|
|
}
|
|
|
|
*r_vertex_count = output.vertexCount;
|
|
|
|
for (uint32_t i = 0; i < output.indexCount; i++) {
|
|
(*r_index)[i] = output.indexArray[i];
|
|
}
|
|
|
|
*r_index_count = output.indexCount;
|
|
|
|
xatlas::Destroy(atlas);
|
|
|
|
return true;
|
|
}
|
|
|
|
void register_xatlas_unwrap_types() {
|
|
array_mesh_lightmap_unwrap_callback = xatlas_mesh_lightmap_unwrap_callback;
|
|
}
|
|
|
|
void unregister_xatlas_unwrap_types() {
|
|
}
|