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hvif-light
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Support files as argumetns, make error reporting more informative

This commit is contained in:
Hans-Joerg Schurr 2020-03-29 19:41:18 +02:00
parent e3f971c636
commit 9dd3cb9f3b
1 changed files with 18 additions and 3 deletions
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21
src/main.c
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@ -5,19 +5,34 @@
#include <stdlib.h> #include <stdlib.h>
int int
main(void) main(int argc, char* argv[argc + 1])
{ {
puts("This is " PACKAGE_STRING "."); puts(PACKAGE_STRING);
FILE* imagefile = fopen("test.hvif", "rb"); if (argc < 2) {
if (argc > 0) printf("Usage: %s FILE\n", argv[0]);
return EXIT_FAILURE;
}
FILE* imagefile = fopen(argv[1], "rb");
if (!imagefile) { if (!imagefile) {
fputs("fopen failed.\n", stderr); fputs("fopen failed.\n", stderr);
return EXIT_FAILURE; return EXIT_FAILURE;
} }
hvif_result result = hvif_from_file(imagefile); hvif_result result = hvif_from_file(imagefile);
fclose(imagefile);
if (result.status != SUCCESS) { if (result.status != SUCCESS) {
fputs("Reading image failed.\n", stderr); fputs("Reading image failed.\n", stderr);
switch (result.status) {
case ERROR_NOMEM: fputs("Out of memory.\n", stderr); break;
case ERROR_EOF: fputs("File ended prematurely.\n", stderr); break;
case ERROR_STYLE: fputs("Incorrect style definition.\n", stderr); break;
case ERROR_PATH: fputs("Incorrect path definition.\n", stderr); break;
case ERROR_SHAPE: fputs("Incorrect shape definition.\n", stderr); break;
default: break;
}
return EXIT_FAILURE; return EXIT_FAILURE;
} }
puts("Reading image succeeded."); puts("Reading image succeeded.");