From 9c238237597de90c73cc65c3fccf2f49bfaa46b4 Mon Sep 17 00:00:00 2001
From: sanine <sanine.not@pm.me>
Date: Thu, 21 Oct 2021 21:33:06 -0500
Subject: move test files to the same directories as the files they test

---
 src/mesh.c | 445 -------------------------------------------------------------
 1 file changed, 445 deletions(-)
 delete mode 100644 src/mesh.c

(limited to 'src/mesh.c')

diff --git a/src/mesh.c b/src/mesh.c
deleted file mode 100644
index 5536640..0000000
--- a/src/mesh.c
+++ /dev/null
@@ -1,445 +0,0 @@
-#include "mesh.h"
-
-int honey_mesh_mt_ref = LUA_NOREF;
-
-struct vertex {
-    float position[3];
-    float normal[3];
-    float tangent[3];
-    float bitangent[3];
-    float uv[2];
-    float color[4];
-
-    unsigned int bones[4];
-    float weights[4];
-};
-
-struct mesh {
-    unsigned int n_vertices;
-    struct vertex* vertices;
-    unsigned int n_indices;
-    unsigned int* indices;
-};
-
-/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
-
-static int honey_mesh_lua_draw(lua_State* L)
-{
-    honey_mesh* mesh;
-    int* shader;
-    honey_lua_parse_arguments(L, 1, 2,
-                              HONEY_USERDATA, &mesh,
-                              HONEY_USERDATA, &shader);
-    honey_mesh_draw(*mesh, *shader);
-    return 0;
-}
-
-static int honey_mesh_lua_delete(lua_State* L)
-{
-    honey_mesh* mesh;
-    honey_lua_parse_arguments(L, 1, 1, HONEY_USERDATA, &mesh);
-    honey_mesh_delete(*mesh);
-    return 0;
-}
-
-static float get_number(lua_State* L, const char* field, int index)
-{
-    lua_rawgeti(L, -1, index);
-    if (!lua_isnumber(L, -1))
-	    honey_lua_throw_error(L, "all elements of '%s' must be numbers; got %s at %d instead",
-				  field, lua_typename(L, lua_type(L, -1)), index);
-
-    float number = lua_tonumber(L, -1);
-    lua_pop(L, 1);
-    return number;
-}
-
-static bool load_field(lua_State* L, const char* field, int length, int fields)
-{
-    lua_getfield(L, 1, field);
-    if (lua_isnil(L, -1)) {
-	return false;
-    }
-    if (!lua_istable(L, -1))
-	honey_lua_throw_error(L, "expected '%s' to be a table; got %s instead",
-			      field,
-			      lua_typename(L, lua_type(L, -1)));
-
-    int table_len = lua_objlen(L, -1);
-    if (table_len != fields*length)
-	honey_lua_throw_error(L, "expected field '%s' to contain %d elements; got %d instead",
-			      field, table_len, fields*length);
-
-    return true;
-}
-
-static int honey_mesh_lua_build(lua_State* L)
-{
-    honey_lua_parse_arguments(L, 1, 1, HONEY_TABLE, NULL);
-
-    lua_getfield(L, 1, "position");
-    if (lua_isnil(L, -1))
-	honey_lua_throw_error(L, "a 'position' table is required but was not found");
-    int n_vertices = lua_objlen(L, -1)/3;
-    lua_pop(L, 1);
-    
-    lua_getfield(L, 1, "faces");
-    if (lua_isnil(L, -1))
-	honey_lua_throw_error(L, "a 'faces' table is required but was not found");
-    int n_indices = lua_objlen(L, -1);
-    lua_pop(L, 1);
-
-    
-    struct mesh m;
-    m.n_vertices = n_vertices;
-    m.n_indices = n_indices;
-    m.vertices = malloc(sizeof(struct vertex) * m.n_vertices);
-    m.indices = malloc(sizeof(unsigned int) * m.n_indices);
-    
-    load_field(L, "position", m.n_vertices, 3);
-    for (int i=0; i<m.n_vertices; i++) {
-	m.vertices[i].position[0] = get_number(L, "position", 3*i+1);
-	m.vertices[i].position[1] = get_number(L, "position", 3*i+2);
-	m.vertices[i].position[2] = get_number(L, "position", 3*i+3);
-    }
-    lua_pop(L, 1);
-
-    load_field(L, "faces", m.n_indices, 1);
-    for (int i=0; i<m.n_indices; i++) {
-	m.indices[i] = get_number(L, "faces", i+1);
-    }
-    lua_pop(L, 1);
-    
-    if (load_field(L, "normal", m.n_vertices, 3)) {
-	for (int i=0; i<m.n_vertices; i++) {
-	    m.vertices[i].normal[0] = get_number(L, "normal", 3*i+1);
-	    m.vertices[i].normal[1] = get_number(L, "normal", 3*i+2);
-	    m.vertices[i].normal[2] = get_number(L, "normal", 3*i+3);
-	}
-    }
-    lua_pop(L, 1);
-
-    if (load_field(L, "tangent", m.n_vertices, 3)) {
-	for (int i=0; i<m.n_vertices; i++) {
-	    m.vertices[i].tangent[0] = get_number(L, "tangent", 3*i+1);
-	    m.vertices[i].tangent[1] = get_number(L, "tangent", 3*i+2);
-	    m.vertices[i].tangent[2] = get_number(L, "tangent", 3*i+3);
-	}
-    }
-    lua_pop(L, 1);
-
-    if (load_field(L, "bitangent", m.n_vertices, 3)) {
-	for (int i=0; i<m.n_vertices; i++) {
-	    m.vertices[i].bitangent[0] = get_number(L, "bitangent", 3*i+1);
-	    m.vertices[i].bitangent[1] = get_number(L, "bitangent", 3*i+2);
-	    m.vertices[i].bitangent[2] = get_number(L, "bitangent", 3*i+3);
-	}
-    }
-    lua_pop(L, 1);
-
-    if (load_field(L, "uv", m.n_vertices, 2)) {
-	for (int i=0; i<m.n_vertices; i++) {
-	    m.vertices[i].uv[0] = get_number(L, "uv", 2*i+1);
-	    m.vertices[i].uv[1] = get_number(L, "uv", 2*i+2);
-	}
-    }
-    lua_pop(L, 1);
-
-    if (load_field(L, "color", m.n_vertices, 4)) {
-	for (int i=0; i<4 * m.n_vertices; i++) {
-	    m.vertices[i].color[0] = get_number(L, "color", 4*i+1);
-	    m.vertices[i].color[1] = get_number(L, "color", 4*i+2);
-	    m.vertices[i].color[2] = get_number(L, "color", 4*i+3);
-	    m.vertices[i].color[3] = get_number(L, "color", 4*i+4);
-	}
-    }
-    lua_pop(L, 1);
-
-    if (load_field(L, "bones", m.n_vertices, 4)) {
-	for (int i=0; i<4 * m.n_vertices; i++) {
-	    m.vertices[i].bones[0] = get_number(L, "bones", 4*i+1);
-	    m.vertices[i].bones[1] = get_number(L, "bones", 4*i+2);
-	    m.vertices[i].bones[2] = get_number(L, "bones", 4*i+3);
-	    m.vertices[i].bones[3] = get_number(L, "bones", 4*i+4);
-	}
-    }
-    lua_pop(L, 1);
-
-    if (load_field(L, "weights", m.n_vertices, 4)) {
-	for (int i=0; i<4 * m.n_vertices; i++) {
-	    m.vertices[i].weights[0] = get_number(L, "weights", 4*i+1);
-	    m.vertices[i].weights[1] = get_number(L, "weights", 4*i+2);
-	    m.vertices[i].weights[2] = get_number(L, "weights", 4*i+3);
-	    m.vertices[i].weights[3] = get_number(L, "weights", 4*i+4);
-	}
-    }
-    lua_pop(L, 1);
-    
-    honey_mesh* mesh = lua_newuserdata(L, sizeof(honey_mesh));
-    honey_result result = honey_mesh_new(mesh, m);
-    lua_rawgeti(L, LUA_REGISTRYINDEX, honey_mesh_mt_ref);
-    lua_setmetatable(L, -2);
-
-    free(m.vertices);
-    free(m.indices);
-
-    return 1;
-}
-
-void honey_setup_mesh(lua_State* L)
-{
-    honey_lua_create_table
-	(L, 2,
-	 HONEY_TABLE, "__index", 1,
-	 HONEY_FUNCTION, "draw", honey_mesh_lua_draw,
-
-	 HONEY_FUNCTION, "__gc", honey_mesh_lua_delete);
-    honey_mesh_mt_ref = luaL_ref(L, LUA_REGISTRYINDEX);
-
-    lua_pushcfunction(L, honey_mesh_load);
-    lua_setfield(L, -2, "loadMesh");
-
-    lua_pushcfunction(L, honey_mesh_lua_build);
-    lua_setfield(L, -2, "buildMesh");
-}
-
-/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
-
-static honey_mesh assimp_to_honey_mesh(struct aiMesh* ai_mesh,
-                                       struct aiScene* scene)
-{
-    struct mesh m;
-    bool has_normals = ai_mesh->mNormals != NULL;
-    bool has_tangents = ai_mesh->mTangents != NULL;
-    bool has_uvs = ai_mesh->mTextureCoords != NULL;
-    bool has_colors = ai_mesh->mColors != NULL;
-
-    m.n_vertices = ai_mesh->mNumVertices;
-    
-    m.vertices = malloc(m.n_vertices * sizeof(struct vertex));
-    for (int i=0; i<m.n_vertices; i++) {
-	m.vertices[i].position[0] = ai_mesh->mVertices[i].x;
-	m.vertices[i].position[1] = ai_mesh->mVertices[i].y;
-	m.vertices[i].position[2] = ai_mesh->mVertices[i].z;
-
-	if (has_normals) {
-	    m.vertices[i].normal[0] = ai_mesh->mNormals[i].x;
-	    m.vertices[i].normal[1] = ai_mesh->mNormals[i].y;
-	    m.vertices[i].normal[2] = ai_mesh->mNormals[i].z;
-	}
-	else {
-	    m.vertices[i].normal[0] = 0;
-	    m.vertices[i].normal[1] = 0;
-	    m.vertices[i].normal[2] = 0;
-	}
-
-	if (has_tangents) {
-	    m.vertices[i].tangent[0] = ai_mesh->mTangents[i].x;
-	    m.vertices[i].tangent[1] = ai_mesh->mTangents[i].y;
-	    m.vertices[i].tangent[2] = ai_mesh->mTangents[i].z;
-
-	    m.vertices[i].bitangent[0] = ai_mesh->mBitangents[i].x;
-	    m.vertices[i].bitangent[1] = ai_mesh->mBitangents[i].y;
-	    m.vertices[i].bitangent[2] = ai_mesh->mBitangents[i].z;
-	}
-	else {
-	    m.vertices[i].tangent[0] = 0;
-	    m.vertices[i].tangent[1] = 0;
-	    m.vertices[i].tangent[2] = 0;
-
-	    m.vertices[i].bitangent[0] = 0;
-	    m.vertices[i].bitangent[1] = 0;
-	    m.vertices[i].bitangent[2] = 0;
-	}
-	
-	if (has_uvs) {
-	    m.vertices[i].uv[0] = ai_mesh->mTextureCoords[0][i].x;
-	    m.vertices[i].uv[1] = ai_mesh->mTextureCoords[0][i].y;
-	}
-	else {
-	    m.vertices[i].uv[0] = 0;
-	    m.vertices[i].uv[1] = 0;
-	}
-    }
-
-    m.n_indices = ai_mesh->mNumFaces*3;
-    m.indices = malloc(sizeof(unsigned int) * m.n_indices);
-    for (int i=0; i<ai_mesh->mNumFaces; i++) {
-	int j = 3*i;
-	struct aiFace face = ai_mesh->mFaces[i];
-	m.indices[j+0] = face.mIndices[0];
-	m.indices[j+1] = face.mIndices[1];
-	m.indices[j+2] = face.mIndices[2];
-    }
-
-    honey_mesh result;
-    honey_mesh_new(&result, m);
-
-    free(m.vertices);
-    free(m.indices);
-
-    return result;
-}
-
-/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
-
-static void process_nodes_recursively(lua_State* L,
-				      struct aiScene* scene,
-				      struct aiNode* node,
-				      int* n_meshes)
-{
-    for (int i=0; i<node->mNumMeshes; i++) {
-	honey_mesh* mesh = lua_newuserdata(L, sizeof(honey_mesh));
-	lua_rawgeti(L, LUA_REGISTRYINDEX, honey_mesh_mt_ref);
-	lua_setmetatable(L, -2);
-	
-	struct aiMesh* assimp_mesh = scene->mMeshes[node->mMeshes[i]];
-	*mesh = assimp_to_honey_mesh(assimp_mesh, scene);
-	lua_rawseti(L, -2, *n_meshes);
-	(*n_meshes)++;
-    }
-
-    for (int i=0; i<node->mNumChildren; i++) {
-	process_nodes_recursively(L, scene, node->mChildren[i], n_meshes);
-    }
-}
-
-/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
-
-int honey_mesh_load(lua_State* L)
-{
-    char* filename;
-    honey_lua_parse_arguments(L, 1, 1, HONEY_STRING, &filename);
-
-    int n_meshes = 1;
-
-    struct aiScene* scene = aiImportFile(filename,
-					 aiProcess_Triangulate |
-					 aiProcess_FlipUVs);
-    if (scene == NULL) {
-	char* error;
-	honey_format_string(&error, "could not open file '%s'", filename);
-	lua_pushstring(L, error);
-	free(error);
-	lua_error(L);
-    }
-
-    if (scene->mFlags & AI_SCENE_FLAGS_INCOMPLETE ||
-	scene->mRootNode == NULL) {
-	char* error;
-	honey_format_string(&error, "could not read mesh(es) in '%s'", filename);
-	lua_pushstring(L, error);
-	free(error);
-	lua_error(L);
-    }
-
-    lua_createtable(L, 0, 0);
-
-    process_nodes_recursively(L, scene, scene->mRootNode, &n_meshes);
-
-    return 1;
-}
-
-/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
-
-honey_result honey_mesh_new(honey_mesh* mesh,
-			    struct mesh m)
-{
-    if (m.vertices == NULL || m.n_vertices == 0) {
-	return HONEY_MESH_BAD_VERTEX_DATA;
-    }
-    if (m.indices == NULL || m.n_indices == 0) {
-	return HONEY_MESH_BAD_INDEX_DATA;
-    }
-
-    mesh->n_vertices = m.n_vertices;
-    mesh->n_indices  = m.n_indices;
-
-    glGenVertexArrays(1, &(mesh->vertex_array));
-    glGenBuffers(1, &(mesh->vertex_buffer));
-    glGenBuffers(1, &(mesh->element_buffer));
-
-    glBindVertexArray(mesh->vertex_array);
-
-    glBindBuffer(GL_ARRAY_BUFFER, mesh->vertex_buffer);
-    glBufferData(GL_ARRAY_BUFFER,
-		 m.n_vertices * sizeof(struct vertex),
-		 m.vertices, GL_STATIC_DRAW);
-
-    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mesh->element_buffer);
-    glBufferData(GL_ELEMENT_ARRAY_BUFFER,
-		 m.n_indices * sizeof(unsigned int),
-		 m.indices, GL_STATIC_DRAW);
-
-    /* set up vertex attributes */
-    size_t offset = 0;
-    /* position */
-    glEnableVertexAttribArray(0);
-    glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE,
-			  sizeof(struct vertex), offset);
-    offset += 3*sizeof(float);
-
-    /* normal */
-    glEnableVertexAttribArray(1);
-    glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE,
-			  sizeof(struct vertex), offset);
-    offset += 3*sizeof(float);
-
-    /* tangent */
-    glEnableVertexAttribArray(2);
-    glVertexAttribPointer(2, 3, GL_FLOAT, GL_FALSE,
-			  sizeof(struct vertex), offset);
-    offset += 3*sizeof(float);
-
-    /* bitangent */
-    glEnableVertexAttribArray(3);
-    glVertexAttribPointer(3, 3, GL_FLOAT, GL_FALSE,
-			  sizeof(struct vertex), offset);
-    offset += 3*sizeof(float);
-
-    /* UV */
-    glEnableVertexAttribArray(4);
-    glVertexAttribPointer(4, 2, GL_FLOAT, GL_FALSE,
-			  sizeof(struct vertex), offset);
-    offset += 2*sizeof(float);
-
-    /* color */
-    glEnableVertexAttribArray(5);
-    glVertexAttribPointer(5, 4, GL_FLOAT, GL_FALSE,
-			  sizeof(struct vertex), offset);
-    offset += 4*sizeof(float);
-
-    /* bone indices */
-    glEnableVertexAttribArray(6);
-    glVertexAttribPointer(6, 4, GL_UNSIGNED_INT, GL_FALSE,
-			  sizeof(struct vertex), offset);
-    offset += 4*sizeof(unsigned int);
-
-    /* bone weights */
-    glEnableVertexAttribArray(7);
-    glVertexAttribPointer(7, 4, GL_FLOAT, GL_FALSE,
-			  sizeof(struct vertex), offset);
-
-    /* done */
-    glBindVertexArray(0);
-
-    return HONEY_OK;
-}
-
-/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
-
-void honey_mesh_draw(honey_mesh mesh, int shader) {
-    glUseProgram(shader);
-  
-    glBindVertexArray(mesh.vertex_array);
-    glDrawElements(GL_TRIANGLES, mesh.n_indices, GL_UNSIGNED_INT, 0);
-    glBindVertexArray(0);
-}
-
-/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
-
-void honey_mesh_delete(honey_mesh mesh) {
-    glDeleteVertexArrays(1, &(mesh.vertex_array));
-    glDeleteBuffers(1, &(mesh.vertex_buffer));
-    glDeleteBuffers(1, &(mesh.element_buffer));
-}
-- 
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