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volume: document when arguments of certain functions may overlap

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This commit is contained in:
Lennart Poettering 2009-08-17 03:50:43 +02:00
parent caa7928972
commit ffeb1b81ba
1 changed files with 8 additions and 4 deletions
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12
src/pulse/volume.h
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@ -213,11 +213,13 @@ int pa_cvolume_channels_equal_to(const pa_cvolume *a, pa_volume_t v) PA_GCC_PURE
pa_volume_t pa_sw_volume_multiply(pa_volume_t a, pa_volume_t b) PA_GCC_CONST; pa_volume_t pa_sw_volume_multiply(pa_volume_t a, pa_volume_t b) PA_GCC_CONST;
/** Multiply two per-channel volumes and return the result in /** Multiply two per-channel volumes and return the result in
* *dest. This is only valid for software volumes! */ * *dest. This is only valid for software volumes! a, b and dest may
* point to the same structure. */
pa_cvolume *pa_sw_cvolume_multiply(pa_cvolume *dest, const pa_cvolume *a, const pa_cvolume *b); pa_cvolume *pa_sw_cvolume_multiply(pa_cvolume *dest, const pa_cvolume *a, const pa_cvolume *b);
/** Multiply a per-channel volume with a scalar volume and return the /** Multiply a per-channel volume with a scalar volume and return the
* result in *dest. This is only valid for software volumes! \since * result in *dest. This is only valid for software volumes! a
* and dest may point to the same structure. \since
* 0.9.16 */ * 0.9.16 */
pa_cvolume *pa_sw_cvolume_multiply_scalar(pa_cvolume *dest, const pa_cvolume *a, pa_volume_t b); pa_cvolume *pa_sw_cvolume_multiply_scalar(pa_cvolume *dest, const pa_cvolume *a, pa_volume_t b);
@ -228,11 +230,13 @@ pa_cvolume *pa_sw_cvolume_multiply_scalar(pa_cvolume *dest, const pa_cvolume *a,
pa_volume_t pa_sw_volume_divide(pa_volume_t a, pa_volume_t b) PA_GCC_CONST; pa_volume_t pa_sw_volume_divide(pa_volume_t a, pa_volume_t b) PA_GCC_CONST;
/** Divide two per-channel volumes and return the result in /** Divide two per-channel volumes and return the result in
* *dest. This is only valid for software volumes! \since 0.9.13 */ * *dest. This is only valid for software volumes! a, b
* and dest may point to the same structure. \since 0.9.13 */
pa_cvolume *pa_sw_cvolume_divide(pa_cvolume *dest, const pa_cvolume *a, const pa_cvolume *b); pa_cvolume *pa_sw_cvolume_divide(pa_cvolume *dest, const pa_cvolume *a, const pa_cvolume *b);
/** Divide a per-channel volume by a scalar volume and return the /** Divide a per-channel volume by a scalar volume and return the
* result in *dest. This is only valid for software volumes! \since * result in *dest. This is only valid for software volumes! a
* and dest may point to the same structure. \since
* 0.9.16 */ * 0.9.16 */
pa_cvolume *pa_sw_cvolume_divide_scalar(pa_cvolume *dest, const pa_cvolume *a, pa_volume_t b); pa_cvolume *pa_sw_cvolume_divide_scalar(pa_cvolume *dest, const pa_cvolume *a, pa_volume_t b);