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evas: fix PLY loader and saver. 

Summary:
Use less memory by indexation vertices and not keeping more than one copy of it (from task T2713).

[Fix]

Reviewers: cedric, raster, Hermet

Subscribers: artem.popov

Differential Revision: https://phab.enlightenment.org/D3355

Signed-off-by: Cedric BAIL <cedric@osg.samsung.com>
This commit is contained in:
perepelits.m 2015-11-23 08:28:24 +01:00 committed by Cedric BAIL
parent d871ff8d11
commit bcf38c5817
2 changed files with 72 additions and 66 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

129
src/modules/evas/model_loaders/ply/evas_model_load_ply.c
View File

@ -103,6 +103,7 @@ _read_header(char *map)//Check properties of mesh in .ply file.
sscanf(helping_pointer[1], "%d", &header.vertices_count);
ERR("\n HEADER %d", header.vertices_count);
free(helping_pointer);
helping_pointer = eina_str_split(map, "end_header\n", 0);
@ -181,7 +182,7 @@ void
evas_model_load_file_ply(Evas_Canvas3D_Mesh *mesh, Eina_File *file)
{
Evas_Canvas3D_Mesh_Data *pd;
int i = 0, j = 0, k = 0, count_of_triangles_in_line = 0;
int i = 0, j = 0, count_of_triangles_in_line = 0;
float *pos, *nor, *tex, *col;
int stride_pos, stride_nor, stride_tex, stride_col;
char *current, *map;
@ -223,20 +224,20 @@ evas_model_load_file_ply(Evas_Canvas3D_Mesh *mesh, Eina_File *file)
_tex_coords_ply = malloc(header.vertices_count * 2 * sizeof(float));
if (header.existence_of_colors)
_colors_ply = malloc(header.vertices_count * 3 * sizeof(float));
int *_triangles = malloc(header.triangles_count * 3 * sizeof(int));
unsigned short *_indices = malloc(header.triangles_count * 3 * sizeof(unsigned short));
if ((header.existence_of_geometries && (_vertices_ply == NULL)) ||
(header.existence_of_normals && (_normals_ply == NULL)) ||
(header.existence_of_texcoords && (_tex_coords_ply == NULL)) ||
(header.existence_of_colors && (_colors_ply == NULL)) ||
(_triangles == NULL))
(_indices == NULL))
{
ERR("Allocate memory is failed.");
free(_vertices_ply);
free(_normals_ply);
free(_tex_coords_ply);
free(_colors_ply);
free(_triangles);
free(_indices);
return;
}
@ -252,30 +253,30 @@ evas_model_load_file_ply(Evas_Canvas3D_Mesh *mesh, Eina_File *file)
current = _to_begin_of_line(current);
}
for (i = 0; i < header.triangles_count;)
for (i = 0; i < header.triangles_count * 3;)
{
sscanf (current,"%d", &count_of_triangles_in_line);
count_of_triangles_in_line -= 2;
current = _to_next_number(current, 1);
sscanf (current,"%i", &ARRAY_2D(_triangles, i, 0, 3));
sscanf (current,"%hu", _indices + i);
for (j = 0; j < count_of_triangles_in_line; j++)
{
if (j > 0)
ARRAY_2D(_triangles, i, 0, 3) = ARRAY_2D(_triangles, (i - 1), 0, 3);
_indices[i] = _indices[i - 3];
current = _to_next_number(current, 1);
sscanf (current,"%i %i",
&ARRAY_2D(_triangles, i, 1, 3),
&ARRAY_2D(_triangles, i, 2, 3));
i++;
sscanf (current,"%hu %hu",
_indices + i + 1,
_indices + i + 2);
i+=3;
}
current = _to_next_line(current);
}
/* prepare of mesh and take pointers to data which must be read */
eo_do(mesh,
evas_canvas3d_mesh_vertex_count_set(header.triangles_count * 3),
evas_canvas3d_mesh_vertex_count_set(header.vertices_count),
evas_canvas3d_mesh_vertex_assembly_set(EVAS_CANVAS3D_VERTEX_ASSEMBLY_TRIANGLES),
evas_canvas3d_mesh_frame_add(0),
evas_canvas3d_mesh_frame_vertex_data_copy_set(0, EVAS_CANVAS3D_VERTEX_ATTRIB_POSITION, 0, NULL),
@ -298,62 +299,66 @@ evas_model_load_file_ply(Evas_Canvas3D_Mesh *mesh, Eina_File *file)
if (stride_tex == 0) stride_tex = sizeof(float) * 2;
if (stride_col == 0) stride_col = sizeof(float) * 4;
for (j = 0; j < header.triangles_count; j++)
for (j = 0; j < header.vertices_count; j++)
{
for (k = 0; k < 3; k++)
float *p, *n, *t, *c;
p = (float *)((char *)pos + stride_pos * j);
n = (float *)((char *)nor + stride_nor * j);
t = (float *)((char *)tex + stride_tex * j);
c = (float *)((char *)col + stride_col * j);
p[0] = ARRAY_2D(_vertices_ply, j, 0, 3);
p[1] = ARRAY_2D(_vertices_ply, j, 1, 3);
p[2] = ARRAY_2D(_vertices_ply, j, 2, 3);
if (header.existence_of_normals)
{
float *p, *n, *t, *c;
n[0] = ARRAY_2D(_normals_ply, j, 0, 3);
n[1] = ARRAY_2D(_normals_ply, j, 1, 3);
n[2] = ARRAY_2D(_normals_ply, j, 2, 3);
}
else
{
n[0] = 0.0;
n[1] = 0.0;
n[2] = 0.0;
}
p = (float *)((char *)pos + stride_pos * (j * 3 + k));
n = (float *)((char *)nor + stride_nor * (j * 3 + k));
t = (float *)((char *)tex + stride_tex * (j * 3 + k));
c = (float *)((char *)col + stride_col * (j * 3 + k));
if (header.existence_of_texcoords)
{
t[0] = ARRAY_2D(_tex_coords_ply, j, 0, 2);
t[1] = ARRAY_2D(_tex_coords_ply, j, 1, 2);
}
else
{
t[0] = 0.0;
t[1] = 0.0;
}
p[0] = ARRAY_2D(_vertices_ply, ARRAY_2D(_triangles, j, k, 3), 0, 3);
p[1] = ARRAY_2D(_vertices_ply, ARRAY_2D(_triangles, j, k, 3), 1, 3);
p[2] = ARRAY_2D(_vertices_ply, ARRAY_2D(_triangles, j, k, 3), 2, 3);
if (header.existence_of_normals)
{
n[0] = ARRAY_2D(_normals_ply, ARRAY_2D(_triangles, j, k, 3), 0, 3);
n[1] = ARRAY_2D(_normals_ply, ARRAY_2D(_triangles, j, k, 3), 1, 3);
n[2] = ARRAY_2D(_normals_ply, ARRAY_2D(_triangles, j, k, 3), 2, 3);
}
else
{
n[0] = 0.0;
n[1] = 0.0;
n[2] = 0.0;
}
if (header.existence_of_texcoords)
{
t[0] = ARRAY_2D(_tex_coords_ply, ARRAY_2D(_triangles, j, k, 3), 0, 2);
t[1] = ARRAY_2D(_tex_coords_ply, ARRAY_2D(_triangles, j, k, 3), 1, 2);
}
else
{
t[0] = 0.0;
t[1] = 0.0;
}
if (header.existence_of_colors)
{
c[0] = ARRAY_2D(_colors_ply, ARRAY_2D(_triangles, j, k, 3), 0, 3);
c[1] = ARRAY_2D(_colors_ply, ARRAY_2D(_triangles, j, k, 3), 1, 3);
c[2] = ARRAY_2D(_colors_ply, ARRAY_2D(_triangles, j, k, 3), 2, 3);
c[3] = 1.0;
}
else
{
c[0] = 0.0;
c[1] = 0.0;
c[2] = 0.0;
c[3] = 1.0;
}
if (header.existence_of_colors)
{
c[0] = ARRAY_2D(_colors_ply, j, 0, 3);
c[1] = ARRAY_2D(_colors_ply, j, 1, 3);
c[2] = ARRAY_2D(_colors_ply, j, 2, 3);
c[3] = 1.0;
}
else
{
c[0] = 0.0;
c[1] = 0.0;
c[2] = 0.0;
c[3] = 1.0;
}
}
eo_do(mesh,
evas_canvas3d_mesh_index_data_copy_set(EVAS_CANVAS3D_INDEX_FORMAT_UNSIGNED_SHORT,
header.triangles_count * 3,
_indices));
free(helping_pointer);
free(_vertices_ply);
if (header.existence_of_normals)
@ -362,7 +367,7 @@ evas_model_load_file_ply(Evas_Canvas3D_Mesh *mesh, Eina_File *file)
free(_tex_coords_ply);
if (header.existence_of_colors)
free(_colors_ply);
free(_triangles);
free(_indices);
/* Unmap vertex buffer. */
eo_do(mesh,

9
src/modules/evas/model_savers/ply/evas_model_save_ply.c
View File

@ -31,7 +31,7 @@ evas_model_save_file_ply(const Evas_Canvas3D_Mesh *mesh, const char *file, Evas_
"property float s\nproperty float t\n" \
"property uchar red\nproperty uchar green\nproperty uchar blue\n");
fprintf(_ply_file,"element face %d\nproperty list uchar uint vertex_indices\nend_header\n",
pd->vertex_count / 3);
pd->index_count / 3);
src_pos = (float*)(&f->vertices[EVAS_CANVAS3D_VERTEX_ATTRIB_POSITION])->data;
src_nor = (float*)(&f->vertices[EVAS_CANVAS3D_VERTEX_ATTRIB_NORMAL])->data;
@ -51,10 +51,11 @@ evas_model_save_file_ply(const Evas_Canvas3D_Mesh *mesh, const char *file, Evas_
src_col += 4;
}
for (i = 0; i < pd->vertex_count;)
unsigned short* indices = (unsigned short*) pd->indices;
for (i = 0; i < pd->index_count / 3; i++)
{
fprintf(_ply_file,"3 %d %d %d\n", i, i + 1, i + 2);
i += 3;
fprintf(_ply_file,"3 %d %d %d\n", indices[3 * i], indices[3 * i + 1], indices[3 * i + 2]);
}
fclose(_ply_file);