65 lines
2.4 KiB
C
65 lines
2.4 KiB
C
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#include <stdio.h>
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#include "rply.h"
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static int callback(p_ply_argument argument) {
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void *pdata;
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/* just pass the value from the input file to the output file */
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ply_get_argument_user_data(argument, &pdata, NULL);
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ply_write((p_ply) pdata, ply_get_argument_value(argument));
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return 1;
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}
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static int setup_callbacks(p_ply iply, p_ply oply) {
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p_ply_element element = NULL;
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/* iterate over all elements in input file */
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while ((element = ply_get_next_element(iply, element))) {
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p_ply_property property = NULL;
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long ninstances = 0;
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const char *element_name;
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ply_get_element_info(element, &element_name, &ninstances);
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/* add this element to output file */
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if (!ply_add_element(oply, element_name, ninstances)) return 0;
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/* iterate over all properties of current element */
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while ((property = ply_get_next_property(element, property))) {
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const char *property_name;
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e_ply_type type, length_type, value_type;
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ply_get_property_info(property, &property_name, &type,
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&length_type, &value_type);
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/* setup input callback for this property */
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ply_set_read_cb(iply, element_name, property_name, callback,
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oply, 0);
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/* add this property to output file */
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if (!ply_add_property(oply, property_name, type, length_type,
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value_type)) return 0;
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}
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}
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return 1;
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}
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int main(int argc, char *argv[]) {
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const char *value;
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p_ply iply, oply;
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(void) argc; (void) argv;
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iply = ply_open("input.ply", NULL, 0, NULL);
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if (!iply) return 1;
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if (!ply_read_header(iply)) return 1;
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oply = ply_create("output.ply", PLY_LITTLE_ENDIAN, NULL, 0, NULL);
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if (!oply) return 1;
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if (!setup_callbacks(iply, oply)) return 1;
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/* pass comments and obj_infos from input to output */
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value = NULL;
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while ((value = ply_get_next_comment(iply, value)))
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if (!ply_add_comment(oply, value)) return 1;
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value = NULL;
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while ((value = ply_get_next_obj_info(iply, value)))
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if (!ply_add_obj_info(oply, value)) return 1;;
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/* write output header */
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if (!ply_write_header(oply)) return 1;
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/* read input file generating callbacks that pass data to output file */
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if (!ply_read(iply)) return 1;
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/* close up, we are done */
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if (!ply_close(iply)) return 1;
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if (!ply_close(oply)) return 1;
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return 0;
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}
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