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vkd3d-shader/fx: Do not write the same string twice.

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This commit is contained in:
Nikolay Sivov 2024-01-12 14:33:05 +01:00 committed by Alexandre Julliard
parent e7d65d39ba
commit 1a036ddff6
Notes: Alexandre Julliard 2024-01-15 23:02:43 +01:00 
Approved-by: Henri Verbeet (@hverbeet)
Approved-by: Alexandre Julliard (@julliard)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/560
1 changed files with 62 additions and 4 deletions
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66
libs/vkd3d-shader/fx.c
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@ -20,11 +20,38 @@
#include "hlsl.h"
struct string_entry
{
struct rb_entry entry;
/* String points to original data, should not be freed. */
const char *string;
uint32_t offset;
};
static int string_storage_compare(const void *key, const struct rb_entry *entry)
{
struct string_entry *string_entry = RB_ENTRY_VALUE(entry, struct string_entry, entry);
const char *string = key;
return strcmp(string, string_entry->string);
}
static void string_storage_destroy(struct rb_entry *entry, void *context)
{
struct string_entry *string_entry = RB_ENTRY_VALUE(entry, struct string_entry, entry);
vkd3d_free(string_entry);
}
struct fx_write_context
{
struct hlsl_ctx *ctx;
struct vkd3d_bytecode_buffer unstructured;
struct vkd3d_bytecode_buffer structured;
struct rb_tree strings;
unsigned int min_technique_version;
unsigned int max_technique_version;
@ -33,12 +60,13 @@ struct fx_write_context
int status;
};
static void fx_write_context_init(const struct hlsl_ctx *ctx, struct fx_write_context *fx)
static void fx_write_context_init(struct hlsl_ctx *ctx, struct fx_write_context *fx)
{
unsigned int version = ctx->profile->major_version;
memset(fx, 0, sizeof(*fx));
fx->ctx = ctx;
if (version == 2)
{
fx->min_technique_version = 9;
@ -54,6 +82,16 @@ static void fx_write_context_init(const struct hlsl_ctx *ctx, struct fx_write_co
fx->min_technique_version = 10;
fx->max_technique_version = 11;
}
rb_init(&fx->strings, string_storage_compare);
}
static int fx_write_context_cleanup(struct fx_write_context *fx)
{
int status = fx->status;
rb_destroy(&fx->strings, string_storage_destroy, NULL);
return status;
}
static bool technique_matches_version(const struct hlsl_ir_var *var, const struct fx_write_context *fx)
@ -68,8 +106,28 @@ static bool technique_matches_version(const struct hlsl_ir_var *var, const struc
static uint32_t fx_put_raw_string(struct fx_write_context *fx, const char *string)
{
struct string_entry *string_entry;
struct rb_entry *entry;
/* NULLs are emitted as empty strings using the same 4 bytes at the start of the section. */
return string ? put_string(&fx->unstructured, string) : 0;
if (!string)
return 0;
if ((entry = rb_get(&fx->strings, string)))
{
string_entry = RB_ENTRY_VALUE(entry, struct string_entry, entry);
return string_entry->offset;
}
if (!(string_entry = hlsl_alloc(fx->ctx, sizeof(*string_entry))))
return 0;
string_entry->offset = put_string(&fx->unstructured, string);
string_entry->string = string;
rb_put(&fx->strings, string, &string_entry->entry);
return string_entry->offset;
}
static void write_pass(struct hlsl_ir_var *var, struct fx_write_context *fx)
@ -230,7 +288,7 @@ static int hlsl_fx_4_write(struct hlsl_ctx *ctx, struct vkd3d_shader_code *out)
if (fx.status < 0)
ctx->result = fx.status;
return fx.status;
return fx_write_context_cleanup(&fx);
}
static int hlsl_fx_5_write(struct hlsl_ctx *ctx, struct vkd3d_shader_code *out)
@ -294,7 +352,7 @@ static int hlsl_fx_5_write(struct hlsl_ctx *ctx, struct vkd3d_shader_code *out)
if (fx.status < 0)
ctx->result = fx.status;
return fx.status;
return fx_write_context_cleanup(&fx);
}
int hlsl_emit_effect_binary(struct hlsl_ctx *ctx, struct vkd3d_shader_code *out)