147 lines
4.5 KiB
C
147 lines
4.5 KiB
C
#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <stdlib.h>
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#include <time.h>
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#include "stdio.h"
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#include "evas_common_private.h"
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#include "evas_private.h"
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#define OPEN_FILE(extension)\
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FILE * _##extension##_file = fopen(_##extension##_file_name, "w+");\
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#define SAVE_GEOMETRICS(a, format)\
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vb = &f->vertices[a];\
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fprintf(_obj_file, "o %s\n",_obj_file_name);\
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if (vb->data == NULL)\
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{\
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ERR("Reading of geometrics is failed.");\
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fclose(_obj_file);\
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return;\
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}\
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src = (float *)vb->data;\
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for (i = 0; i < pd->vertex_count; i++)\
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{\
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fprintf(_obj_file, format, src[0], src[1], src[2]);\
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src += f->vertices[a].element_count;\
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}
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static void
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_save_mesh(Evas_3D_Mesh_Data *pd, const char *_obj_file_name, Evas_3D_Mesh_Frame *f)
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{
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Evas_3D_Vertex_Buffer *vb;
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time_t current_time;
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char* c_time_string;
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int i;
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float *src;
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OPEN_FILE(obj)
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if (!_obj_file)
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{
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ERR("File open '%s' for save failed", _obj_file_name);
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return;
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}
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fprintf(_obj_file, "# Evas_3D saver OBJ v0.03 \n");//_obj_file created in macro
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/* Adding time comment to .obj file. */
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current_time = time(NULL);
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if (current_time == ((time_t)-1))
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{
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ERR("Failure to compute the current time.");
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fclose(_obj_file);
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return;
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}
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c_time_string = ctime(¤t_time);
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if (c_time_string == NULL)
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{
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ERR("Failure to convert the current time.");
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fclose(_obj_file);
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return;
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}
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fprintf(_obj_file,"# Current time is %s \n", c_time_string);
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fprintf(_obj_file,"mtllib %s.mtl \n\n", _obj_file_name);
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/* Adding geometrics to file. */
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if (f == NULL)
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{
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ERR("Not existing mesh frame.");
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fclose(_obj_file);
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return;
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}
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SAVE_GEOMETRICS(EVAS_3D_VERTEX_POSITION, "v %.4f %.4f %.4f \n")
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SAVE_GEOMETRICS(EVAS_3D_VERTEX_NORMAL, "vn %.4f %.4f %.4f \n")
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SAVE_GEOMETRICS(EVAS_3D_VERTEX_TEXCOORD, "vt %.4f %.4f %.4f \n")
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fprintf(_obj_file,"usemtl Material\n s off\n");
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for (i = 1; i <= pd->vertex_count; i++)//numeration of faces in .obj started from 1
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{
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fprintf(_obj_file,"f %i/%i/%i ", i, i, i);
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i++;
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fprintf(_obj_file,"%i/%i/%i ", i, i, i);
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i++;
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fprintf(_obj_file,"%i/%i/%i \n", i, i, i);
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}
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fclose(_obj_file);
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}
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static void
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_save_material(Evas_3D_Mesh_Data *pd EINA_UNUSED, const char *_mtl_file_name, Evas_3D_Mesh_Frame *f)
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{
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Evas_3D_Material_Data *mat = eo_data_scope_get(f->material, EVAS_3D_MATERIAL_CLASS);
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OPEN_FILE(mtl)
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if (!_mtl_file)
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{
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ERR("File open '%s' for save failed", _mtl_file_name);
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return;
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}
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fprintf(_mtl_file, "# Evas_3D saver OBJ v0.03 \n");//_mtl_file created in macro
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fprintf(_mtl_file, "# Material Count: 1 \n\n");
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fprintf(_mtl_file, "newmtl Material \n");
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fprintf(_mtl_file, "Ns 1.000000 \n");//exp factor for specular highlight
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fprintf(_mtl_file, "Ka %.6f %.6f %.6f \n",
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(float)mat->attribs[EVAS_3D_MATERIAL_AMBIENT].color.r,
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(float)mat->attribs[EVAS_3D_MATERIAL_AMBIENT].color.g,
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(float)mat->attribs[EVAS_3D_MATERIAL_AMBIENT].color.b);
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fprintf(_mtl_file, "Kd %.6f %.6f %.6f \n",
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(float)mat->attribs[EVAS_3D_MATERIAL_DIFFUSE].color.r,
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(float)mat->attribs[EVAS_3D_MATERIAL_DIFFUSE].color.g,
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(float)mat->attribs[EVAS_3D_MATERIAL_DIFFUSE].color.b);
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fprintf(_mtl_file, "Ks %.6f %.6f %.6f \n",
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(float)mat->attribs[EVAS_3D_MATERIAL_SPECULAR].color.r,
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(float)mat->attribs[EVAS_3D_MATERIAL_SPECULAR].color.g,
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(float)mat->attribs[EVAS_3D_MATERIAL_SPECULAR].color.b);
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fprintf(_mtl_file, "Ni 1.000000 \n");//optical density
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fprintf(_mtl_file, "d 1.000000 \n");//a factor d of 1.0 is fully opaque material
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fprintf(_mtl_file, "illum 2 \n");//illumination properties
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fclose(_mtl_file);
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}
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void
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evas_model_save_file_obj(Evas_3D_Mesh *mesh, const char *_obj_file_name, Evas_3D_Mesh_Frame *f)
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{
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int len;
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char *without_extention, *_mtl_extension, *_mtl_file_name;
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len = strlen(_obj_file_name);
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without_extention = (char*)malloc((len - 4) * sizeof(char));
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_mtl_extension = ".mtl";
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_mtl_file_name = (char *)malloc(len * sizeof(char));
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memcpy(without_extention, _obj_file_name, len-4);
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strcpy(_mtl_file_name, without_extention);
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strcpy(_mtl_file_name + len - 4, _mtl_extension);
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Evas_3D_Mesh_Data *pd = eo_data_scope_get(mesh, EVAS_3D_MESH_CLASS);
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_save_mesh(pd, _obj_file_name, f);
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_save_material(pd, _mtl_file_name, f);
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free(without_extention);
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free(_mtl_file_name);
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}
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