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vkd3d-shader/hlsl: Add field-level documentation to struct hlsl_ir_var.

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Francisco Casas 2022-11-14 17:14:03 -03:00 committed by Alexandre Julliard
parent 0a2732428c
commit 8ff3698699
Notes: Alexandre Julliard 2023-01-11 22:39:24 +01:00 
Approved-by: Giovanni Mascellani (@giomasce)
Approved-by: Zebediah Figura (@zfigura)
Approved-by: Henri Verbeet (@hverbeet)
Approved-by: Alexandre Julliard (@julliard)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/50
1 changed files with 28 additions and 1 deletions
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29
libs/vkd3d-shader/hlsl.h
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@ -303,13 +303,40 @@ struct hlsl_ir_var
struct vkd3d_shader_location loc;
const char *name;
struct hlsl_semantic semantic;
/* Buffer where the variable's value is stored, in case it is uniform. */
struct hlsl_buffer *buffer;
/* Bitfield for storage modifiers (type modifiers are stored in data_type->modifiers). */
unsigned int storage_modifiers;
/* Optional register to be used as a starting point for the variable allocation, specified
* by the user via the register(·) syntax. */
struct hlsl_reg_reservation reg_reservation;
struct list scope_entry, param_entry, extern_entry;
/* Item entry in hlsl_scope.vars. Specifically hlsl_ctx.globals.vars if the variable is global. */
struct list scope_entry;
/* Item entry in hlsl_ir_function_decl.parameters, if the variable is a function parameter. */
struct list param_entry;
/* Item entry in hlsl_ctx.extern_vars, if the variable is extern. */
struct list extern_entry;
/* Indexes of the IR instructions where the variable is first written and last read (liveness
* range). The IR instructions are numerated starting from 2, because 0 means unused, and 1
* means function entry. */
unsigned int first_write, last_read;
/* Offset where the variable's value is stored within its buffer in numeric register components.
* This in case the variable is uniform. */
unsigned int buffer_offset;
/* Register to which the variable is allocated during its lifetime.
* In case that the variable spans multiple registers, this is set to the start of the register
* range.
* The register type is inferred from the data type and the storage of the variable.
* Builtin semantics don't use the field.
* In SM4, uniforms don't use the field because they are located using the buffer's hlsl_reg
* and the buffer_offset instead.
* If the variable is an input semantic copy, the register is 'v'.
* If the variable is an output semantic copy, the register is 'o'.
* Textures are stored on 's' registers in SM1, and 't' registers in SM4.
* Samplers are stored on 's' registers.
* UAVs are stored on 'u' registers. */
struct hlsl_reg reg;
uint32_t is_input_semantic : 1;