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cogl: Remove unused utils

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Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3431>
This commit is contained in:
Bilal Elmoussaoui 2023-11-29 11:53:03 +01:00
parent c3c144f991
commit 85e4d08475
2 changed files with 0 additions and 52 deletions
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20
cogl/cogl/cogl-util.c
View File

@ -35,26 +35,6 @@
#include "cogl/cogl-util.h"
#include "cogl/cogl-private.h"
/*
* cogl_util_next_p2:
* @a: Value to get the next power of two
*
* Calculates the next power of two greater than or equal to @a.
*
* Return value: @a if @a is already a power of two, otherwise returns
* the next nearest power of two.
*/
COGL_EXPORT int
_cogl_util_next_p2 (int a)
{
int rval = 1;
while (rval < a)
rval <<= 1;
return rval;
}
unsigned int
_cogl_util_one_at_a_time_mix (unsigned int hash)
{

32
cogl/cogl/cogl-util.h
View File

@ -39,31 +39,6 @@
#include <stdio.h>
int
_cogl_util_next_p2 (int a);
/* The signbit macro is defined by ISO C99 so it should be available,
however if it's not we can fallback to an evil hack */
#ifdef signbit
#define cogl_util_float_signbit(x) signbit(x)
#else
/* This trick was stolen from here:
http://lists.boost.org/Archives/boost/2006/08/108731.php
It xors the integer reinterpretations of -1.0f and 1.0f. In theory
they should only differ by the signbit so that gives a mask for the
sign which we can just test against the value */
static inline gboolean
cogl_util_float_signbit (float x)
{
static const union { float f; uint32_t i; } negative_one = { -1.0f };
static const union { float f; uint32_t i; } positive_one = { +1.0f };
union { float f; uint32_t i; } value = { x };
return !!((negative_one.i ^ positive_one.i) & value.i);
}
#endif
/* This is a replacement for the nearbyint function which always
rounds to the nearest integer. nearbyint is apparently a C99
function so it might not always be available but also it seems in
@ -72,13 +47,6 @@ cogl_util_float_signbit (float x)
negative numbers. */
#define COGL_UTIL_NEARBYINT(x) ((int) ((x) < 0.0f ? (x) - 0.5f : (x) + 0.5f))
/* Returns whether the given integer is a power of two */
static inline gboolean
_cogl_util_is_pot (unsigned int num)
{
/* Make sure there is only one bit set */
return (num & (num - 1)) == 0;
}
/* Split Bob Jenkins' One-at-a-Time hash
*