[PATCH v2 3/4] winevulkan: Return NULL for unavailable instance functions.

[Liam Middlebrook]

Signed-off-by: Liam Middlebrook <lmiddlebrook at nvidia.com>

On 8/20/21 4:24 AM, Georg Lehmann wrote:
> Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=49542
> Signed-off-by: Georg Lehmann <dadschoorse at gmail.com>
> ---
>   dlls/winevulkan/loader.c         | 6 ++++++
>   dlls/winevulkan/make_vulkan      | 4 ++++
>   dlls/winevulkan/vulkan.c         | 5 +++++
>   dlls/winevulkan/vulkan_private.h | 2 ++
>   4 files changed, 17 insertions(+)
> 
> diff --git a/dlls/winevulkan/loader.c b/dlls/winevulkan/loader.c
> index 6bc32620bba..4857a0adc7a 100644
> --- a/dlls/winevulkan/loader.c
> +++ b/dlls/winevulkan/loader.c
> @@ -116,6 +116,9 @@ PFN_vkVoidFunction WINAPI vkGetInstanceProcAddr(VkInstance instance, const char
>           return NULL;
>       }
>   
> +    if (!unix_funcs->p_is_available_instance_function(instance, name))
> +        return NULL;
> +
>       func = wine_vk_get_instance_proc_addr(name);
>       if (func) return func;
>   
> @@ -175,6 +178,9 @@ void * WINAPI vk_icdGetPhysicalDeviceProcAddr(VkInstance instance, const char *n
>   {
>       TRACE("%p, %s\n", instance, debugstr_a(name));
>   
> +    if (!unix_funcs->p_is_available_instance_function(instance, name))
> +        return NULL;
> +
>       return wine_vk_get_phys_dev_proc_addr(name);
>   }
>   
> diff --git a/dlls/winevulkan/make_vulkan b/dlls/winevulkan/make_vulkan
> index 55b5b71691e..760c460b6fe 100755
> --- a/dlls/winevulkan/make_vulkan
> +++ b/dlls/winevulkan/make_vulkan
> @@ -2788,6 +2788,7 @@ class VkGenerator(object):
>                   continue
>   
>               f.write("    &{1}{0},\n".format(vk_func.name, prefix))
> +        f.write("    &wine_vk_is_available_instance_function,\n")
>           f.write("};\n")
>   
>       def generate_thunks_h(self, f, prefix):
> @@ -2988,6 +2989,9 @@ class VkGenerator(object):
>                   continue
>   
>               f.write("    {0};\n".format(vk_func.pfn(conv=False, call_conv="WINAPI")))
> +        f.write("\n")
> +        f.write("    /* winevulkan specific functions */\n")
> +        f.write("    BOOL (WINAPI *p_is_available_instance_function)(VkInstance, const char *);\n")
>           f.write("};\n\n")
>   
>           f.write("#endif /* __WINE_VULKAN_LOADER_THUNKS_H */\n")
> diff --git a/dlls/winevulkan/vulkan.c b/dlls/winevulkan/vulkan.c
> index fb0ffbdfe6c..3658a4378cb 100644
> --- a/dlls/winevulkan/vulkan.c
> +++ b/dlls/winevulkan/vulkan.c
> @@ -1605,3 +1605,8 @@ void WINAPI wine_vkDestroyDebugReportCallbackEXT(
>   
>       free(object);
>   }
> +
> +BOOL WINAPI wine_vk_is_available_instance_function(VkInstance instance, const char *name)
> +{
> +    return !!vk_funcs->p_vkGetInstanceProcAddr(instance->instance, name);
> +}
> diff --git a/dlls/winevulkan/vulkan_private.h b/dlls/winevulkan/vulkan_private.h
> index 83dc90ca15e..ce83b2b7032 100644
> --- a/dlls/winevulkan/vulkan_private.h
> +++ b/dlls/winevulkan/vulkan_private.h
> @@ -212,4 +212,6 @@ uint64_t wine_vk_unwrap_handle(VkObjectType type, uint64_t handle) DECLSPEC_HIDD
>   
>   extern const struct unix_funcs loader_funcs;
>   
> +BOOL WINAPI wine_vk_is_available_instance_function(VkInstance instance, const char *name) DECLSPEC_HIDDEN;
> +
>   #endif /* __WINE_VULKAN_PRIVATE_H */
>