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tgsi: remove unused tgsi_is_passthrough_shader() 

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Elie Tournier <elie.tournier@collabora.com>
This commit is contained in:
Samuel Pitoiset 2017-05-23 15:31:35 +02:00
parent 338f47b6d8
commit 51dc5e3df3
2 changed files with 0 additions and 79 deletions
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76
src/gallium/auxiliary/tgsi/tgsi_scan.c
View File

@ -891,79 +891,3 @@ tgsi_scan_arrays(const struct tgsi_token *tokens,
return;
}
/**
* Check if the given shader is a "passthrough" shader consisting of only
* MOV instructions of the form: MOV OUT[n], IN[n]
*
*/
boolean
tgsi_is_passthrough_shader(const struct tgsi_token *tokens)
{
struct tgsi_parse_context parse;
/**
** Setup to begin parsing input shader
**/
if (tgsi_parse_init(&parse, tokens) != TGSI_PARSE_OK) {
debug_printf("tgsi_parse_init() failed in tgsi_is_passthrough_shader()!\n");
return FALSE;
}
/**
** Loop over incoming program tokens/instructions
*/
while (!tgsi_parse_end_of_tokens(&parse)) {
tgsi_parse_token(&parse);
switch (parse.FullToken.Token.Type) {
case TGSI_TOKEN_TYPE_INSTRUCTION:
{
struct tgsi_full_instruction *fullinst =
&parse.FullToken.FullInstruction;
const struct tgsi_full_src_register *src =
&fullinst->Src[0];
const struct tgsi_full_dst_register *dst =
&fullinst->Dst[0];
/* Do a whole bunch of checks for a simple move */
if (fullinst->Instruction.Opcode != TGSI_OPCODE_MOV ||
(src->Register.File != TGSI_FILE_INPUT &&
src->Register.File != TGSI_FILE_SYSTEM_VALUE) ||
dst->Register.File != TGSI_FILE_OUTPUT ||
src->Register.Index != dst->Register.Index ||
src->Register.Negate ||
src->Register.Absolute ||
src->Register.SwizzleX != TGSI_SWIZZLE_X ||
src->Register.SwizzleY != TGSI_SWIZZLE_Y ||
src->Register.SwizzleZ != TGSI_SWIZZLE_Z ||
src->Register.SwizzleW != TGSI_SWIZZLE_W ||
dst->Register.WriteMask != TGSI_WRITEMASK_XYZW)
{
tgsi_parse_free(&parse);
return FALSE;
}
}
break;
case TGSI_TOKEN_TYPE_DECLARATION:
/* fall-through */
case TGSI_TOKEN_TYPE_IMMEDIATE:
/* fall-through */
case TGSI_TOKEN_TYPE_PROPERTY:
/* fall-through */
default:
; /* no-op */
}
}
tgsi_parse_free(&parse);
/* if we get here, it's a pass-through shader */
return TRUE;
}

3
src/gallium/auxiliary/tgsi/tgsi_scan.h
View File

@ -196,9 +196,6 @@ tgsi_scan_arrays(const struct tgsi_token *tokens,
unsigned max_array_id,
struct tgsi_array_info *arrays);
extern boolean
tgsi_is_passthrough_shader(const struct tgsi_token *tokens);
#ifdef __cplusplus
} // extern "C"
#endif