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tgsi/text: Allow optional component selection for indirect registers.

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This commit is contained in:
Michal Krol
2009-04-03 17:06:36 +02:00
parent 3b7c9a9a16
commit dfab375c07
1 changed files with 38 additions and 5 deletions
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src/gallium/auxiliary/tgsi/tgsi_text.c
+38 -5
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@@ -358,9 +358,9 @@ parse_register_dst(
/* Parse source register operand.
* <register_src> ::= <register_file_bracket_index> `]' |
* <register_file_bracket> <register_dst> `]' |
* <register_file_bracket> <register_dst> `+' <uint> `]' |
* <register_file_bracket> <register_dst> `-' <uint> `]'
* <register_file_bracket> <register_dst> [`.' (`x' | `y' | `z' | `w')] `]' |
* <register_file_bracket> <register_dst> [`.' (`x' | `y' | `z' | `w')] `+' <uint> `]' |
* <register_file_bracket> <register_dst> [`.' (`x' | `y' | `z' | `w')] `-' <uint> `]'
*/
static boolean
parse_register_src(
@@ -368,11 +368,13 @@ parse_register_src(
uint *file,
int *index,
uint *ind_file,
int *ind_index )
int *ind_index,
uint *ind_comp)
{
const char *cur;
uint uindex;
*ind_comp = TGSI_SWIZZLE_X;
if (!parse_register_file_bracket( ctx, file ))
return FALSE;
eat_opt_white( &ctx->cur );
@@ -381,6 +383,32 @@ parse_register_src(
if (!parse_register_dst( ctx, ind_file, ind_index ))
return FALSE;
eat_opt_white( &ctx->cur );
if (*ctx->cur == '.') {
ctx->cur++;
eat_opt_white(&ctx->cur);
switch (uprcase(*ctx->cur)) {
case 'X':
*ind_comp = TGSI_SWIZZLE_X;
break;
case 'Y':
*ind_comp = TGSI_SWIZZLE_Y;
break;
case 'Z':
*ind_comp = TGSI_SWIZZLE_Z;
break;
case 'W':
*ind_comp = TGSI_SWIZZLE_W;
break;
default:
report_error(ctx, "Expected indirect register swizzle component `x', `y', `z' or `w'");
return FALSE;
}
ctx->cur++;
eat_opt_white(&ctx->cur);
}
if (*ctx->cur == '+' || *ctx->cur == '-') {
boolean negate;
@@ -561,6 +589,7 @@ parse_src_operand(
int index;
uint ind_file;
int ind_index;
uint ind_comp;
uint swizzle[4];
boolean parsed_ext_negate_paren = FALSE;
boolean parsed_swizzle;
@@ -643,7 +672,7 @@ parse_src_operand(
}
}
if (!parse_register_src( ctx, &file, &index, &ind_file, &ind_index ))
if (!parse_register_src(ctx, &file, &index, &ind_file, &ind_index, &ind_comp))
return FALSE;
src->SrcRegister.File = file;
src->SrcRegister.Index = index;
@@ -651,6 +680,10 @@ parse_src_operand(
src->SrcRegister.Indirect = 1;
src->SrcRegisterInd.File = ind_file;
src->SrcRegisterInd.Index = ind_index;
src->SrcRegisterInd.SwizzleX = ind_comp;
src->SrcRegisterInd.SwizzleY = ind_comp;
src->SrcRegisterInd.SwizzleZ = ind_comp;
src->SrcRegisterInd.SwizzleW = ind_comp;
}
/* Parse optional swizzle.