From 2c38d19af27ad001876b606950efc0598dd067fb Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@duempel.org>
Date: Mon, 10 Oct 2011 09:05:58 +0200
Subject: audio_format: add function attributes

For better optimization.
---
 src/audio_format.h | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'src/audio_format.h')

diff --git a/src/audio_format.h b/src/audio_format.h
index 1e26974b..8c2906d5 100644
--- a/src/audio_format.h
+++ b/src/audio_format.h
@@ -20,6 +20,7 @@
 #ifndef MPD_AUDIO_FORMAT_H
 #define MPD_AUDIO_FORMAT_H
 
+#include <glib.h>
 #include <stdint.h>
 #include <stdbool.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.
  * This function performs some basic validity checks.
  */
+G_GNUC_PURE
 static inline bool audio_format_valid(const struct audio_format *af)
 {
 	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
  * MPD.  This function performs some basic validity checks.
  */
+G_GNUC_PURE
 static inline bool audio_format_mask_valid(const struct audio_format *af)
 {
 	return (af->sample_rate == 0 ||
@@ -237,6 +240,7 @@ audio_format_mask_apply(struct audio_format *af,
 	assert(audio_format_valid(af));
 }
 
+G_GNUC_CONST
 static inline unsigned
 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.
  */
+G_GNUC_PURE
 static inline unsigned audio_format_sample_size(const struct audio_format *af)
 {
 	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.
  */
+G_GNUC_PURE
 static inline unsigned
 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
  * storage size in bytes.
  */
+G_GNUC_PURE
 static inline double audio_format_time_to_size(const struct audio_format *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
  * @return the string
  */
+G_GNUC_PURE G_GNUC_MALLOC
 const char *
 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
  * @return the string, or NULL if the #audio_format object is invalid
  */
+G_GNUC_PURE G_GNUC_MALLOC
 const char *
 audio_format_to_string(const struct audio_format *af,
 		       struct audio_format_string *s);
-- 
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