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#include <stdbool.h>
#include <stdint.h>
#include <stdlib.h>
#include "netpbm/mallocvar.h"
#include "netpbm/shhopt.h"
#include "netpbm/pam.h"
#include "limits_pamtris.h"
#include "framebuffer.h"
#include "boundaries.h"
#include "input.h"
#define MAX_METRICS 8192
static int
parse_command_line(int * const argc_ptr,
const char ** const argv,
int32_t * const width,
int32_t * const height,
int32_t * const maxval,
int32_t * const num_attribs,
char * const tupletype) {
optEntry * option_def;
optStruct3 opt;
/* Instructions to pm_optParseOptions3 on how to parse our options */
unsigned int option_def_index;
char * tupletype_tmp;
unsigned int width_spec, height_spec, attribs_spec, tupletype_spec;
unsigned int rgb_spec, grayscale_spec, maxval_spec;
MALLOCARRAY_NOFAIL(option_def, 100);
option_def_index = 0; /* incremented by OPTENT3 */
OPTENT3(0, "width", OPT_INT, width, &width_spec, 0);
OPTENT3(0, "height", OPT_INT, height, &height_spec, 0);
OPTENT3(0, "num_attribs", OPT_INT, num_attribs, &attribs_spec, 0);
OPTENT3(0, "tupletype", OPT_STRING, &tupletype_tmp, &tupletype_spec, 0);
OPTENT3(0, "rgb", OPT_FLAG, NULL, &rgb_spec, 0);
OPTENT3(0, "grayscale", OPT_FLAG, NULL, &grayscale_spec, 0);
OPTENT3(0, "maxval", OPT_INT, maxval, &maxval_spec, 0);
opt.opt_table = option_def;
opt.short_allowed = false;
opt.allowNegNum = false;
pm_optParseOptions3(argc_ptr, (char **)argv, opt, sizeof(opt), 0);
if (!width_spec || !height_spec || (!attribs_spec && !(rgb_spec || grayscale_spec))) {
pm_errormsg(
"you must at least specify -width, -height and "
"either -num_attribs, -rgb or -grayscale.");
return 0;
}
if (rgb_spec + grayscale_spec + attribs_spec != 1) {
pm_errormsg("you must provide either only -num_attribs, "
"-rgb or -grayscale; not a combination of those.");
return 0;
}
if (*width < 1 || *width > MAX_METRICS) {
pm_errormsg("invalid width.");
return 0;
}
if (*height < 1 || *height > MAX_METRICS) {
pm_errormsg("invalid height.");
return 0;
}
if (maxval_spec) {
if (*maxval < 1 || *maxval > PAM_OVERALL_MAXVAL) {
pm_errormsg("invalid maxval.");
return 0;
}
} else {
*maxval = 255;
}
if (rgb_spec) {
*num_attribs = 3;
set_tupletype("RGB_ALPHA", tupletype);
}
if (grayscale_spec) {
*num_attribs = 1;
set_tupletype("GRAYSCALE_ALPHA", tupletype);
}
if (*num_attribs < 1 || *num_attribs > MAX_NUM_ATTRIBS) {
pm_errormsg("invalid number of generic attributes per vertex.");
return 0;
}
if (tupletype_spec) {
if(rgb_spec || grayscale_spec) {
pm_errormsg("you may not provide -tupletype together with "
"-rgb or -grayscale.");
return 0;
}
if (!set_tupletype(tupletype_tmp, tupletype)) {
pm_errormsg("warning: invalid tuple type; using empty string.");
set_tupletype(NULL, tupletype);
}
}
free(option_def);
return 1;
}
int
main(int argc, const char ** argv) {
framebuffer_info fbi;
boundary_info bi;
Input input;
bool no_more_commands;
pm_proginit(&argc, (const char**)argv);
set_tupletype(NULL, fbi.outpam.tuple_type);
if (!parse_command_line(&argc,
argv,
&fbi.width,
&fbi.height,
&fbi.maxval,
&fbi.num_attribs,
fbi.outpam.tuple_type)) {
return 1;
}
if (!init_framebuffer(&fbi)) {
pm_errormsg("out of memory.");
return 3;
}
init_boundary_buffer(&bi, fbi.height);
input_init(&input);
for (no_more_commands = false; !no_more_commands; )
input_process_next_command(&input, &bi, &fbi, &no_more_commands);
input_term(&input);
free_boundary_buffer(&bi);
free_framebuffer(&fbi);
return 0;
}
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