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vkd3d-shader: Record a global temporary count per sm4 shader.

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Store it in the shader_desc, and declare temps from that when compiling SPIR-V,
instead of parsing dcl_instructions.

As part of this change, we declare a single, global temps array (with Private
scope instead of Function) which is as large as the maximum of all dcl_temps
instructions. It is not clear to me whether this will improve, hurt, or have no
significant effect on the lower-level compiler. An alternative is to still
redeclare a new temps array every time (although still with a smaller size).
This commit is contained in:
Zebediah Figura
2023-06-28 14:49:42 -05:00
committed by Alexandre Julliard
parent dfb2a316e6
commit e489098878
Notes: Alexandre Julliard 2023-07-04 23:25:44 +02:00 
Approved-by: Giovanni Mascellani (@giomasce)
Approved-by: Henri Verbeet (@hverbeet)
Approved-by: Alexandre Julliard (@julliard)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/255
3 changed files with 13 additions and 12 deletions
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2
libs/vkd3d-shader/tpf.c
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@@ -989,6 +989,8 @@ static void shader_sm4_read_declaration_count(struct vkd3d_shader_instruction *i
uint32_t opcode_token, const uint32_t *tokens, unsigned int token_count, struct vkd3d_shader_sm4_parser *priv)
{
ins->declaration.count = *tokens;
if (opcode == VKD3D_SM4_OP_DCL_TEMPS)
priv->p.shader_desc.temp_count = max(priv->p.shader_desc.temp_count, *tokens);
}
static void shader_sm4_read_declaration_dst(struct vkd3d_shader_instruction *ins, uint32_t opcode,