Zebediah Figura : include: Document struct vkd3d_shader_interface_info.
Module: vkd3d Branch: master Commit: 72984bddcdce65ea643e02a9a8d338c4e7473816 URL: https://source.winehq.org/git/vkd3d.git/?a=commit;h=72984bddcdce65ea643e02a9... Author: Zebediah Figura <z.figura12(a)gmail.com> Date: Mon Aug 31 20:34:30 2020 -0500 include: Document struct vkd3d_shader_interface_info. Signed-off-by: Zebediah Figura <z.figura12(a)gmail.com> Signed-off-by: Henri Verbeet <hverbeet(a)codeweavers.com> Signed-off-by: Alexandre Julliard <julliard(a)winehq.org> --- include/vkd3d_shader.h | 154 +++++++++++++++++++++++++++++++++++++++++++++---- 1 file changed, 143 insertions(+), 11 deletions(-) diff --git a/include/vkd3d_shader.h b/include/vkd3d_shader.h index 7e011e3..cc5615c 100644 --- a/include/vkd3d_shader.h +++ b/include/vkd3d_shader.h @@ -105,15 +105,23 @@ struct vkd3d_shader_compile_option unsigned int value; }; +/** Describes which shader stages a resource is visible to. */ enum vkd3d_shader_visibility { + /** The resource is visible to all shader stages. */ VKD3D_SHADER_VISIBILITY_ALL = 0, + /** The resource is visible only to the vertex shader. */ VKD3D_SHADER_VISIBILITY_VERTEX = 1, + /** The resource is visible only to the hull shader. */ VKD3D_SHADER_VISIBILITY_HULL = 2, + /** The resource is visible only to the domain shader. */ VKD3D_SHADER_VISIBILITY_DOMAIN = 3, + /** The resource is visible only to the geometry shader. */ VKD3D_SHADER_VISIBILITY_GEOMETRY = 4, + /** The resource is visible only to the pixel shader. */ VKD3D_SHADER_VISIBILITY_PIXEL = 5, + /** The resource is visible only to the compute shader. */ VKD3D_SHADER_VISIBILITY_COMPUTE = 1000000000, VKD3D_FORCE_32_BIT_ENUM(VKD3D_SHADER_VISIBILITY), @@ -128,21 +136,51 @@ struct vkd3d_shader_code size_t size; }; +/** The type of a shader resource descriptor. */ enum vkd3d_shader_descriptor_type { - VKD3D_SHADER_DESCRIPTOR_TYPE_SRV = 0x0, /* t# */ - VKD3D_SHADER_DESCRIPTOR_TYPE_UAV = 0x1, /* u# */ - VKD3D_SHADER_DESCRIPTOR_TYPE_CBV = 0x2, /* cb# */ - VKD3D_SHADER_DESCRIPTOR_TYPE_SAMPLER = 0x3, /* s# */ + /** + * The descriptor is a shader resource view. In Direct3D assembly, this is + * bound to a t# register. + */ + VKD3D_SHADER_DESCRIPTOR_TYPE_SRV = 0x0, + /** + * The descriptor is an unordered access view. In Direct3D assembly, this is + * bound to a u# register. + */ + VKD3D_SHADER_DESCRIPTOR_TYPE_UAV = 0x1, + /** + * The descriptor is a constant buffer view. In Direct3D assembly, this is + * bound to a cb# register. + */ + VKD3D_SHADER_DESCRIPTOR_TYPE_CBV = 0x2, + /** + * The descriptor is a sampler. In Direct3D assembly, this is bound to an s# + * register. + */ + VKD3D_SHADER_DESCRIPTOR_TYPE_SAMPLER = 0x3, VKD3D_FORCE_32_BIT_ENUM(VKD3D_SHADER_DESCRIPTOR_TYPE), }; +/** + * A common structure describing the bind point of a descriptor or descriptor + * array in the target environment. + */ struct vkd3d_shader_descriptor_binding { + /** + * The set of the descriptor. If the target environment does not support + * descriptor sets, this value must be set to 0. + */ unsigned int set; + /** The binding index of the descriptor. */ unsigned int binding; - unsigned int count; /* This must be 1 in this version of vkd3d-shader. */ + /** + * The size of this descriptor array. Descriptor arrays are not supported in + * this version of vkd3d-shader, and therefore this value must be 1. + */ + unsigned int count; }; enum vkd3d_shader_binding_flag @@ -203,67 +241,161 @@ struct vkd3d_shader_parameter } u; }; +/** + * Describes the mapping of a single resource or resource array to its binding + * point in the target environment. + * + * For example, to map a Direct3D SRV with register space 2, register "t3" to + * a Vulkan descriptor in set 4 and with binding 5, set the following members: + * - \a type = VKD3D_SHADER_DESCRIPTOR_TYPE_SRV + * - \a register_space = 2 + * - \a register_index = 3 + * - \a binding.set = 4 + * - \a binding.binding = 5 + * - \a binding.count = 1 + * + * This structure is used in struct vkd3d_shader_interface_info. + */ struct vkd3d_shader_resource_binding { + /** The type of this descriptor. */ enum vkd3d_shader_descriptor_type type; + /** + * Register space of the Direct3D resource. If the source format does not + * support multiple register spaces, this parameter must be set to 0. + */ unsigned int register_space; + /** Register index of the DXBC resource. */ unsigned int register_index; + /** Shader stage(s) to which the resource is visible. */ enum vkd3d_shader_visibility shader_visibility; - unsigned int flags; /* vkd3d_shader_binding_flag */ + /** A combination of zero or more elements of vkd3d_shader_binding_flag. */ + unsigned int flags; + /** The binding in the target environment. */ struct vkd3d_shader_descriptor_binding binding; }; #define VKD3D_SHADER_DUMMY_SAMPLER_INDEX ~0u +/** + * Describes the mapping of a Direct3D resource-sampler pair to a combined + * sampler (i.e. sampled image). + * + * This structure is used in struct vkd3d_shader_interface_info. + */ struct vkd3d_shader_combined_resource_sampler { + /** + * Register space of the Direct3D resource. If the source format does not + * support multiple register spaces, this parameter must be set to 0. + */ unsigned int resource_space; + /** Register index of the Direct3D resource. */ unsigned int resource_index; + /** + * Register space of the Direct3D sampler. If the source format does not + * support multiple register spaces, this parameter must be set to 0. + */ unsigned int sampler_space; + /** Register index of the Direct3D sampler. */ unsigned int sampler_index; + /** Shader stage(s) to which the resource is visible. */ enum vkd3d_shader_visibility shader_visibility; - unsigned int flags; /* vkd3d_shader_binding_flag */ + /** A combination of zero or more elements of vkd3d_shader_binding_flag. */ + unsigned int flags; + /** The binding in the target environment. */ struct vkd3d_shader_descriptor_binding binding; }; +/** + * Describes the mapping of a single Direct3D UAV counter. + * + * This structure is used in struct vkd3d_shader_interface_info. + */ struct vkd3d_shader_uav_counter_binding { + /** + * Register space of the Direct3D UAV descriptor. If the source format does + * not support multiple register spaces, this parameter must be set to 0. + */ unsigned int register_space; - unsigned int register_index; /* u# */ + /** Register index of the Direct3D UAV descriptor. */ + unsigned int register_index; + /** Shader stage(s) to which the UAV counter is visible. */ enum vkd3d_shader_visibility shader_visibility; + /** The binding in the target environment. */ struct vkd3d_shader_descriptor_binding binding; unsigned int offset; }; +/** + * Describes the mapping of a Direct3D constant buffer to a range of push + * constants in the target environment. + * + * This structure is used in struct vkd3d_shader_interface_info. + */ struct vkd3d_shader_push_constant_buffer { + /** + * Register space of the Direct3D resource. If the source format does not + * support multiple register spaces, this parameter must be set to 0. + */ unsigned int register_space; + /** Register index of the Direct3D resource. */ unsigned int register_index; + /** Shader stage(s) to which the resource is visible. */ enum vkd3d_shader_visibility shader_visibility; - unsigned int offset; /* in bytes */ - unsigned int size; /* in bytes */ + /** Offset, in bytes, of the target push constants. */ + unsigned int offset; + /** Size, in bytes, of the target push constants. */ + unsigned int size; }; -/* Extends vkd3d_shader_compile_info. */ +/** + * A chained structure describing the interface between a compiled shader and + * the target environment. + * + * For example, when compiling Direct3D shader byte code to SPIR-V, this + * structure contains mappings from Direct3D descriptor registers to SPIR-V + * descriptor bindings. + * + * This structure is optional. If omitted, vkd3d_shader_compile() will use a + * default mapping, in which resources are mapped to sequential bindings in + * register set 0. + * + * This structure extends vkd3d_shader_compile_info. + * + * This structure contains only input parameters. + */ struct vkd3d_shader_interface_info { + /** Must be set to VKD3D_SHADER_STRUCTURE_TYPE_INTERFACE_INFO. */ enum vkd3d_shader_structure_type type; + /** Optional pointer to a structure containing further parameters. */ const void *next; + /** Pointer to an array of bindings for shader resource descriptors. */ const struct vkd3d_shader_resource_binding *bindings; + /** Size, in elements, of \ref bindings. */ unsigned int binding_count; + /** Pointer to an array of bindings for push constant buffers. */ const struct vkd3d_shader_push_constant_buffer *push_constant_buffers; + /** Size, in elements, of \ref push_constant_buffers. */ unsigned int push_constant_buffer_count; + /** Pointer to an array of bindings for combined samplers. */ const struct vkd3d_shader_combined_resource_sampler *combined_samplers; + /** Size, in elements, of \ref combined_samplers. */ unsigned int combined_sampler_count; + /** Pointer to an array of bindings for UAV counters. */ const struct vkd3d_shader_uav_counter_binding *uav_counters; + /** Size, in elements, of \ref uav_counters. */ unsigned int uav_counter_count; };
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Alexandre Julliard