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

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Francisco Casas 2022-11-14 22:46:17 -03:00 committed by Alexandre Julliard
parent 9157a5e73f
commit 04108c0e21
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 16 additions and 0 deletions
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16
libs/vkd3d-shader/hlsl.h
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@ -217,6 +217,11 @@ struct hlsl_reg
bool allocated; bool allocated;
}; };
/* Types of instruction nodes for the IR.
* Each type of instruction node is associated to a struct with the same name in lower case.
* e.g. for HLSL_IR_CONSTANT there exists struct hlsl_ir_constant.
* Each one of these structs start with a struct hlsl_ir_node field, so pointers to values of these
* types can be casted seamlessly to (struct hlsl_ir_node *) and vice-versa. */
enum hlsl_ir_node_type enum hlsl_ir_node_type
{ {
HLSL_IR_CONSTANT, HLSL_IR_CONSTANT,
@ -231,12 +236,22 @@ enum hlsl_ir_node_type
HLSL_IR_SWIZZLE, HLSL_IR_SWIZZLE,
}; };
/* Common data for every type of IR instruction node. */
struct hlsl_ir_node struct hlsl_ir_node
{ {
/* Item entry for storing the instruction in a list of instructions. */
struct list entry; struct list entry;
/* Type of node, which means that a pointer to this struct hlsl_ir_node can be casted to a
* pointer to the struct with the same name. */
enum hlsl_ir_node_type type; enum hlsl_ir_node_type type;
/* HLSL data type of the node, when used by other nodes as a source (through an hlsl_src).
* HLSL_IR_CONSTANT, HLSL_IR_EXPR, HLSL_IR_LOAD, HLSL_IR_RESOURCE_LOAD, and HLSL_IR_SWIZZLE
* have a data type and can be used through an hlsl_src; other types of node don't. */
struct hlsl_type *data_type; struct hlsl_type *data_type;
/* List containing all the struct hlsl_src·s that point to this node; linked by the
* hlsl_src.entry fields. */
struct list uses; struct list uses;
struct vkd3d_shader_location loc; struct vkd3d_shader_location loc;
@ -246,6 +261,7 @@ struct hlsl_ir_node
* true even for loops, since currently we can't have a reference to a * true even for loops, since currently we can't have a reference to a
* value generated in an earlier iteration of the loop. */ * value generated in an earlier iteration of the loop. */
unsigned int index, last_read; unsigned int index, last_read;
/* Temp. register allocated to store the result of this instruction (if any). */
struct hlsl_reg reg; struct hlsl_reg reg;
}; };