On Sunday, February 11, 2018 6:26:41 PM PST Gustavo Lima Chaves wrote:
> ---
> src/intel/vulkan/anv_extensions.py | 1 +
> src/intel/vulkan/anv_pipeline.c | 1 +
> 2 files changed, 2 insertions(+)
>
> diff --git a/src/intel/vulkan/anv_extensions.py
> b/src/intel/vulkan/anv_extensions.py
> index 581921e62a..628778caa6 100644
> --- a/src/intel/vulkan/anv_extensions.py
> +++ b/src/intel/vulkan/anv_extensions.py
> @@ -86,6 +86,7 @@ EXTENSIONS = [
> Extension('VK_KHX_multiview', 1, True),
> Extension('VK_EXT_debug_report', 8, True),
> Extension('VK_EXT_external_memory_dma_buf', 1, True),
> + Extension('VK_EXT_shader_stencil_export', 1, True),
> ]
>
> class VkVersion:
> diff --git a/src/intel/vulkan/anv_pipeline.c b/src/intel/vulkan/anv_pipeline.c
> index e16a7a1994..a80ce686fd 100644
> --- a/src/intel/vulkan/anv_pipeline.c
> +++ b/src/intel/vulkan/anv_pipeline.c
> @@ -143,6 +143,7 @@ anv_shader_compile_to_nir(struct anv_pipeline *pipeline,
> .multiview = true,
> .variable_pointers = true,
> .storage_16bit = device->instance->physicalDevice.info.gen >= 8,
> + .stencil_export = true,
> },
> };
>
>
Hi Gustavo,
Intel hardware only gained the ability to write a stencil reference
value from the fragment shader on Skylake (Gen 9). So, you'll probably
want to make this:
.stencil_export = device->instance->physicalDevice.info.gen >= 9,
I don't know if there's something more you'll need to do in order to
avoid advertising the Vulkan extension (VK_EXT_shader_stencil_export)
on earlier generations, too. I'll defer to Jason on that one.
--Ken
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