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mesa: preparse [ and [0] in gl_resource_name and use it in shader_query.cpp

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strrchr is very expensive here.

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13507>
This commit is contained in:
Marek Olšák
2021-10-22 21:02:42 -04:00
parent 4b67055fef
commit aad903c3f5
3 changed files with 19 additions and 9 deletions
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2
src/compiler/glsl/ir_uniform.h
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@@ -92,6 +92,8 @@ struct gl_resource_name
{
char *string;
int length; /* strlen(string) or 0 */
int last_square_bracket; /* (strrchr(name, '[') - name) or -1 */
bool suffix_is_zero_square_bracketed; /* suffix is [0] */
};
struct gl_uniform_storage {

12
src/compiler/glsl/linker.cpp
View File

@@ -5043,7 +5043,19 @@ resource_name_updated(struct gl_resource_name *name)
{
if (name->string) {
name->length = strlen(name->string);
const char *last_square_bracket = strrchr(name->string, '[');
if (last_square_bracket) {
name->last_square_bracket = last_square_bracket - name->string;
name->suffix_is_zero_square_bracketed =
strcmp(last_square_bracket, "[0]") == 0;
} else {
name->last_square_bracket = -1;
name->suffix_is_zero_square_bracketed = false;
}
} else {
name->length = 0;
name->last_square_bracket = -1;
name->suffix_is_zero_square_bracketed = false;
}
}