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include: Document vkd3d_shader_signature.

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Signed-off-by: Zebediah Figura <z.figura12@gmail.com>
Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Zebediah Figura 2020-09-04 10:42:18 -05:00 committed by Alexandre Julliard
parent b68247132e
commit 41c6cb59d9
1 changed files with 55 additions and 0 deletions
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55
include/vkd3d_shader.h
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@ -962,29 +962,50 @@ struct vkd3d_shader_scan_descriptor_info
unsigned int descriptor_count;
};
/**
* Data type of a shader varying, returned as part of struct
* vkd3d_shader_signature_element.
*/
enum vkd3d_shader_component_type
{
/** The varying has no type. */
VKD3D_SHADER_COMPONENT_VOID = 0x0,
/** 32-bit unsigned integer. */
VKD3D_SHADER_COMPONENT_UINT = 0x1,
/** 32-bit signed integer. */
VKD3D_SHADER_COMPONENT_INT = 0x2,
/** 32-bit IEEE floating-point. */
VKD3D_SHADER_COMPONENT_FLOAT = 0x3,
/** Boolean. */
VKD3D_SHADER_COMPONENT_BOOL = 0x4,
VKD3D_FORCE_32_BIT_ENUM(VKD3D_SHADER_COMPONENT_TYPE),
};
/** System value semantic, returned as part of struct vkd3d_shader_signature. */
enum vkd3d_shader_sysval_semantic
{
/** No system value. */
VKD3D_SHADER_SV_NONE = 0x00,
/** Vertex position; SV_Position in Direct3D. */
VKD3D_SHADER_SV_POSITION = 0x01,
/** Clip distance; SV_ClipDistance in Direct3D. */
VKD3D_SHADER_SV_CLIP_DISTANCE = 0x02,
/** Cull distance; SV_CullDistance in Direct3D. */
VKD3D_SHADER_SV_CULL_DISTANCE = 0x03,
/** Render target layer; SV_RenderTargetArrayIndex in Direct3D. */
VKD3D_SHADER_SV_RENDER_TARGET_ARRAY_INDEX = 0x04,
/** Viewport index; SV_ViewportArrayIndex in Direct3D. */
VKD3D_SHADER_SV_VIEWPORT_ARRAY_INDEX = 0x05,
/** Vertex ID; SV_VertexID in Direct3D. */
VKD3D_SHADER_SV_VERTEX_ID = 0x06,
/** Primtive ID; SV_PrimitiveID in Direct3D. */
VKD3D_SHADER_SV_PRIMITIVE_ID = 0x07,
/** Instance ID; SV_InstanceID in Direct3D. */
VKD3D_SHADER_SV_INSTANCE_ID = 0x08,
/** Whether the triangle is front-facing; SV_IsFrontFace in Direct3D. */
VKD3D_SHADER_SV_IS_FRONT_FACE = 0x09,
/** Sample index; SV_SampleIndex in Direct3D. */
VKD3D_SHADER_SV_SAMPLE_INDEX = 0x0a,
VKD3D_SHADER_SV_TESS_FACTOR_QUADEDGE = 0x0b,
VKD3D_SHADER_SV_TESS_FACTOR_QUADINT = 0x0c,
@ -996,32 +1017,66 @@ enum vkd3d_shader_sysval_semantic
VKD3D_FORCE_32_BIT_ENUM(VKD3D_SHADER_SYSVAL_SEMANTIC),
};
/**
* Minimum interpolation precision of a shader varying, returned as part of
* struct vkd3d_shader_signature_element.
*/
enum vkd3d_shader_minimum_precision
{
VKD3D_SHADER_MINIMUM_PRECISION_NONE = 0,
/** 16-bit floating-point. */
VKD3D_SHADER_MINIMUM_PRECISION_FLOAT_16 = 1,
/** 10-bit fixed point (2 integer and 8 fractional bits). */
VKD3D_SHADER_MINIMUM_PRECISION_FLOAT_8_2 = 2,
/** 16-bit signed integer. */
VKD3D_SHADER_MINIMUM_PRECISION_INT_16 = 4,
/** 16-bit unsigned integer. */
VKD3D_SHADER_MINIMUM_PRECISION_UINT_16 = 5,
VKD3D_FORCE_32_BIT_ENUM(VKD3D_SHADER_MINIMUM_PRECISION),
};
/**
* A single shader varying, returned as part of struct vkd3d_shader_signature.
*/
struct vkd3d_shader_signature_element
{
/** Semantic name. */
const char *semantic_name;
/** Semantic index, or 0 if the semantic is not indexed. */
unsigned int semantic_index;
/**
* Stream index of a geometry shader output semantic. If the signature is
* not a geometry shader output signature, this field will be set to 0.
*/
unsigned int stream_index;
/**
* System value semantic. If the varying is not a system value, this field
* will be set to VKD3D_SHADER_SV_NONE.
*/
enum vkd3d_shader_sysval_semantic sysval_semantic;
/** Data type. */
enum vkd3d_shader_component_type component_type;
/** Register index. */
unsigned int register_index;
/** Register mask. */
unsigned int mask;
/** Minimum interpolation precision. */
enum vkd3d_shader_minimum_precision min_precision;
};
/**
* Description of a shader input or output signature. This structure is
* populated by vkd3d_shader_parse_input_signature().
*
* The helper function vkd3d_shader_find_signature_element() will look up a
* varying element by its semantic name, semantic index, and stream index.
*/
struct vkd3d_shader_signature
{
/** Pointer to an array of varyings. */
struct vkd3d_shader_signature_element *elements;
/** Size, in elements, of \ref elements. */
unsigned int element_count;
};