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vkd3d-dxbc: Allow the section to extract to be specified by tag.

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Henri Verbeet 2024-04-03 18:00:19 +02:00 committed by Alexandre Julliard
parent 6c3b87bed0
commit 73996c9941
Notes: Alexandre Julliard 2024-04-04 22:42:25 +02:00 
Approved-by: Henri Verbeet (@hverbeet)
Approved-by: Alexandre Julliard (@julliard)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/755
1 changed files with 45 additions and 1 deletions
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46
programs/vkd3d-dxbc/main.c
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@ -279,7 +279,13 @@ static void print_usage(const char *program_name)
" --colour Enable colour, even when not supported by the output.\n"
" -e, --emit Emit the content of the DXBC blob.\n"
" -x, --extract=<section> Extract the data contained in <section>.\n"
" <section> must be of the form 'i:<index>'.\n"
" <section> may either be of the form 'i:<index>' in\n"
" order to specify a section by its index or of the\n"
" form 't:<tag>' in order to specify a section by its\n"
" tag. <tag> may be either a four-character string or a\n"
" 32-bit hexadecimal integer. For example: 'i:2',\n"
" 't:SHDR', 't:52444853'. If multiple sections match\n"
" the same tag, the first matching section is used.\n"
" -h, --help Display this information and exit.\n"
" --ignore-checksum Do not validate the checksum when parsing the DXBC\n"
" blob.\n"
@ -428,6 +434,26 @@ static const char *dump_tag(char *out, uint32_t tag)
return out;
}
static bool parse_tag(uint32_t *t, const char *s)
{
char *end;
if (strlen(s) == 4)
{
*t = VKD3D_MAKE_TAG(s[0], s[1], s[2], s[3]);
return true;
}
if (strlen(s) == 8)
{
*t = strtoul(s, &end, 16);
if (!*end)
return true;
}
return false;
}
static void dump_line(const struct colours *colours, const char *prefix,
const uint8_t *data, size_t offset, size_t count)
{
@ -561,6 +587,7 @@ static bool emit_dxbc(const struct vkd3d_shader_dxbc_desc *dxbc_desc, const stru
static struct vkd3d_shader_dxbc_section_desc *get_section(size_t section_count,
struct vkd3d_shader_dxbc_section_desc *sections, const char *s)
{
uint32_t tag;
size_t idx;
char *end;
@ -576,6 +603,23 @@ static struct vkd3d_shader_dxbc_section_desc *get_section(size_t section_count,
return &sections[idx];
}
if (!strncmp("t:", s, 2))
{
s += 2;
if (!parse_tag(&tag, s))
{
fprintf(stderr, "Invalid section tag '%s' specified.\n", s);
return NULL;
}
for (idx = 0; idx < section_count; ++idx)
{
if (sections[idx].tag == tag)
return &sections[idx];
}
fprintf(stderr, "Section '%s' not found.\n", s);
return NULL;
}
fprintf(stderr, "Invalid section specifier '%s' specified.\n", s);
return NULL;
}