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include: Define an API for mapping sm1 samplers to the target environment.

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Zebediah Figura 2023-03-07 18:05:09 -06:00 committed by Alexandre Julliard
parent 2bcd6ea893
commit 7a4ae434df
Notes: Alexandre Julliard 2023-10-09 23:10:55 +02:00 
Approved-by: Henri Verbeet (@hverbeet)
Approved-by: Alexandre Julliard (@julliard)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/394
1 changed files with 24 additions and 10 deletions
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34
include/vkd3d_shader.h
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@ -1383,16 +1383,30 @@ struct vkd3d_shader_descriptor_info
*
* This structure extends vkd3d_shader_compile_info.
*
* When scanning a legacy Direct3D shader, vkd3d-shader enumerates each
* constant register set used by the shader as a single constant buffer
* descriptor, as follows:
* - The \ref vkd3d_shader_descriptor_info.type field is set to
* VKD3D_SHADER_DESCRIPTOR_TYPE_CBV.
* - The \ref vkd3d_shader_descriptor_info.register_space field is set to zero.
* - The \ref vkd3d_shader_descriptor_info.register_index field is set to a
* member of enum vkd3d_shader_d3dbc_constant_register denoting which set
* is used.
* - The \ref vkd3d_shader_descriptor_info.count field is set to one.
* When scanning a legacy Direct3D shader, vkd3d-shader enumerates descriptors
* as follows:
*
* - Each constant register set used by the shader is scanned as a single
* constant buffer descriptor, as follows:
* * The \ref vkd3d_shader_descriptor_info.type field is set to
* VKD3D_SHADER_DESCRIPTOR_TYPE_CBV.
* * The \ref vkd3d_shader_descriptor_info.register_space field is set to zero.
* * The \ref vkd3d_shader_descriptor_info.register_index field is set to a
* member of enum vkd3d_shader_d3dbc_constant_register denoting which set
* is used.
* * The \ref vkd3d_shader_descriptor_info.count field is set to one.
* - Each sampler used by the shader is scanned as two separate descriptors,
* one representing the texture, and one representing the sampler state.
* If desired, these may be mapped back into a single combined sampler using
* struct vkd3d_shader_combined_resource_sampler.
* The fields are set as follows:
* * The \ref vkd3d_shader_descriptor_info.type field is set to
* VKD3D_SHADER_DESCRIPTOR_TYPE_SRV and VKD3D_SHADER_DESCRIPTOR_TYPE_SAMPLER
* respectively.
* * The \ref vkd3d_shader_descriptor_info.register_space field is set to zero.
* * The \ref vkd3d_shader_descriptor_info.register_index field is set to the
* binding index of the original sampler, for both descriptors.
* * The \ref vkd3d_shader_descriptor_info.count field is set to one.
*
* In summary, there may be up to three such descriptors, one for each register
* set used by the shader: float, integer, and boolean.