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More fixes to GraphOS file loading

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- There may be no .KIT file around, still load the pixels then
- Files from the actual GraphOS are one byte shorter than expected
This commit is contained in:
Adrien Destugues 2019-12-06 21:54:26 +01:00
parent e13833a2e8
commit 52ae9de584
1 changed files with 9 additions and 17 deletions
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26
src/miscfileformats.c
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@ -4807,7 +4807,7 @@ void Test_GOS(T_IO_Context * context, FILE * file)
if (!CPC_check_AMSDOS(file, NULL, &file_size))
file_size = File_length_file(file);
if (file_size != 16384) {
if (file_size < 16383 || file_size > 16384) {
File_error = 1;
return;
}
@ -4820,24 +4820,11 @@ void Test_GOS(T_IO_Context * context, FILE * file)
if (!CPC_check_AMSDOS(file_oddeve, NULL, &file_size))
file_size = File_length_file(file_oddeve);
fclose(file_oddeve);
if (file_size != 16384) {
if (file_size < 16383 || file_size > 16384) {
File_error = 3;
return;
}
file_oddeve = Open_file_read_with_alternate_ext(context, "KIT");
if (file_oddeve == NULL) {
File_error = 4;
return;
}
if (!CPC_check_AMSDOS(file_oddeve, NULL, &file_size))
file_size = File_length_file(file_oddeve);
fclose(file_oddeve);
if (file_size != 32) {
File_error = 5;
return;
}
File_error = 0;
}
@ -4872,7 +4859,7 @@ void Load_GOS(T_IO_Context* context)
// load pixels
pixel_data = GFX2_malloc(16384);
memset(pixel_data, 0, 16384);
Read_bytes(file, pixel_data, 16384);
Read_bytes(file, pixel_data, file_size);
i = 0;
for (y = 0; y < 168; y++) {
@ -4899,7 +4886,7 @@ void Load_GOS(T_IO_Context* context)
if (CPC_check_AMSDOS(file, NULL, &file_size))
fseek(file, 128, SEEK_SET); // right after AMSDOS header
Read_bytes(file, pixel_data, 16384);
Read_bytes(file, pixel_data, file_size);
i = 0;
for (y = 168; y < 272; y++) {
x = 0;
@ -4921,6 +4908,11 @@ void Load_GOS(T_IO_Context* context)
fclose(file);
file = Open_file_read_with_alternate_ext(context, "KIT");
if (file == NULL) {
// There is no palette, but that's fine, we can still load the pixels
return;
}
if (CPC_check_AMSDOS(file, NULL, NULL)) {
fseek(file, 128, SEEK_SET); // right after AMSDOS header
}