[PATCH vkd3d 3/3] vkd3d-utils: Allow writing log output via a custom callback.

[Giovanni Mascellani]

Signed-off-by: Giovanni Mascellani <gmascellani at codeweavers.com>

Il 02/06/22 02:01, Zebediah Figura ha scritto:
> When using PE vkd3d through Wine, debug output may be swallowed by writing to
> Win32 stderr. Avoid this by providing a way to hook up vkd3d log output to Wine
> output.
> 
> Signed-off-by: Zebediah Figura <zfigura at codeweavers.com>
> ---
>   include/vkd3d_utils.h               | 15 +++++++++++++++
>   libs/vkd3d-utils/vkd3d_utils.map    |  1 +
>   libs/vkd3d-utils/vkd3d_utils_main.c |  6 ++++++
>   3 files changed, 22 insertions(+)
> 
> diff --git a/include/vkd3d_utils.h b/include/vkd3d_utils.h
> index 565247820..6e84b176e 100644
> --- a/include/vkd3d_utils.h
> +++ b/include/vkd3d_utils.h
> @@ -75,6 +75,21 @@ VKD3D_UTILS_API HRESULT WINAPI D3DPreprocess(const void *data, SIZE_T size, cons
>           const D3D_SHADER_MACRO *defines, ID3DInclude *include,
>           ID3DBlob **shader, ID3DBlob **error_messages);
>   
> +/**
> + * Set a callback to be called when vkd3d-utils outputs debug logging.
> + *
> + * If NULL, or if this function has not been called, libvkd3d-utils will print
> + * all enabled log output to stderr.
> + *
> + * Calling this function will also set the log callback for libvkd3d and
> + * libvkd3d-shader.
> + *
> + * \param callback Callback function to set.
> + *
> + * \since 1.4
> + */
> +VKD3D_UTILS_API void vkd3d_utils_set_log_callback(PFN_vkd3d_log callback);
> +
>   #ifdef __cplusplus
>   }
>   #endif  /* __cplusplus */
> diff --git a/libs/vkd3d-utils/vkd3d_utils.map b/libs/vkd3d-utils/vkd3d_utils.map
> index 1e46cd865..14eb439e0 100644
> --- a/libs/vkd3d-utils/vkd3d_utils.map
> +++ b/libs/vkd3d-utils/vkd3d_utils.map
> @@ -15,6 +15,7 @@ global:
>       vkd3d_create_event;
>       vkd3d_destroy_event;
>       vkd3d_signal_event;
> +    vkd3d_utils_set_log_callback;
>       vkd3d_wait_event;
>   
>   local: *;
> diff --git a/libs/vkd3d-utils/vkd3d_utils_main.c b/libs/vkd3d-utils/vkd3d_utils_main.c
> index 22953c461..644188930 100644
> --- a/libs/vkd3d-utils/vkd3d_utils_main.c
> +++ b/libs/vkd3d-utils/vkd3d_utils_main.c
> @@ -536,3 +536,9 @@ HRESULT WINAPI D3DCreateBlob(SIZE_T data_size, ID3DBlob **blob)
>       }
>       return hr;
>   }
> +
> +void vkd3d_utils_set_log_callback(PFN_vkd3d_log callback)
> +{
> +    vkd3d_set_log_callback(callback);
> +    vkd3d_dbg_set_log_callback(callback);
> +}