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audio_format: add function attributes

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For better optimization.
This commit is contained in:
Max Kellermann 2011-10-10 09:05:58 +02:00
parent 311e627463
commit 2c38d19af2
2 changed files with 10 additions and 0 deletions
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1
src/audio_check.h
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@ -28,6 +28,7 @@
/** /**
* The GLib quark used for errors reported by this library. * The GLib quark used for errors reported by this library.
*/ */
G_GNUC_CONST
static inline GQuark static inline GQuark
audio_format_quark(void) audio_format_quark(void)
{ {

9
src/audio_format.h
View File

@ -20,6 +20,7 @@
#ifndef MPD_AUDIO_FORMAT_H #ifndef MPD_AUDIO_FORMAT_H
#define MPD_AUDIO_FORMAT_H #define MPD_AUDIO_FORMAT_H
#include <glib.h>
#include <stdint.h> #include <stdint.h>
#include <stdbool.h> #include <stdbool.h>
#include <assert.h> #include <assert.h>
@ -189,6 +190,7 @@ audio_valid_channel_count(unsigned channels)
* Returns false if the format is not valid for playback with MPD. * Returns false if the format is not valid for playback with MPD.
* This function performs some basic validity checks. * This function performs some basic validity checks.
*/ */
G_GNUC_PURE
static inline bool audio_format_valid(const struct audio_format *af) static inline bool audio_format_valid(const struct audio_format *af)
{ {
return audio_valid_sample_rate(af->sample_rate) && return audio_valid_sample_rate(af->sample_rate) &&
@ -200,6 +202,7 @@ static inline bool audio_format_valid(const struct audio_format *af)
* Returns false if the format mask is not valid for playback with * Returns false if the format mask is not valid for playback with
* MPD. This function performs some basic validity checks. * MPD. This function performs some basic validity checks.
*/ */
G_GNUC_PURE
static inline bool audio_format_mask_valid(const struct audio_format *af) static inline bool audio_format_mask_valid(const struct audio_format *af)
{ {
return (af->sample_rate == 0 || return (af->sample_rate == 0 ||
@ -237,6 +240,7 @@ audio_format_mask_apply(struct audio_format *af,
assert(audio_format_valid(af)); assert(audio_format_valid(af));
} }
G_GNUC_CONST
static inline unsigned static inline unsigned
sample_format_size(enum sample_format format) sample_format_size(enum sample_format format)
{ {
@ -265,6 +269,7 @@ sample_format_size(enum sample_format format)
/** /**
* Returns the size of each (mono) sample in bytes. * Returns the size of each (mono) sample in bytes.
*/ */
G_GNUC_PURE
static inline unsigned audio_format_sample_size(const struct audio_format *af) static inline unsigned audio_format_sample_size(const struct audio_format *af)
{ {
return sample_format_size((enum sample_format)af->format); return sample_format_size((enum sample_format)af->format);
@ -273,6 +278,7 @@ static inline unsigned audio_format_sample_size(const struct audio_format *af)
/** /**
* Returns the size of each full frame in bytes. * Returns the size of each full frame in bytes.
*/ */
G_GNUC_PURE
static inline unsigned static inline unsigned
audio_format_frame_size(const struct audio_format *af) audio_format_frame_size(const struct audio_format *af)
{ {
@ -283,6 +289,7 @@ audio_format_frame_size(const struct audio_format *af)
* Returns the floating point factor which converts a time span to a * Returns the floating point factor which converts a time span to a
* storage size in bytes. * storage size in bytes.
*/ */
G_GNUC_PURE
static inline double audio_format_time_to_size(const struct audio_format *af) static inline double audio_format_time_to_size(const struct audio_format *af)
{ {
return af->sample_rate * audio_format_frame_size(af); return af->sample_rate * audio_format_frame_size(af);
@ -295,6 +302,7 @@ static inline double audio_format_time_to_size(const struct audio_format *af)
* @param format a #sample_format enum value * @param format a #sample_format enum value
* @return the string * @return the string
*/ */
G_GNUC_PURE G_GNUC_MALLOC
const char * const char *
sample_format_to_string(enum sample_format format); sample_format_to_string(enum sample_format format);
@ -306,6 +314,7 @@ sample_format_to_string(enum sample_format format);
* @param s a buffer to print into * @param s a buffer to print into
* @return the string, or NULL if the #audio_format object is invalid * @return the string, or NULL if the #audio_format object is invalid
*/ */
G_GNUC_PURE G_GNUC_MALLOC
const char * const char *
audio_format_to_string(const struct audio_format *af, audio_format_to_string(const struct audio_format *af,
struct audio_format_string *s); struct audio_format_string *s);