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authorMichal Krol <[email protected]>2008-07-13 15:14:31 +0200
committerMichal Krol <[email protected]>2008-07-13 15:14:31 +0200
commit94013b66b91112f31802c3d935e8d918ba12be62 (patch)
tree8c2b8ac8bf5bc362f2d92d256d4d5b8386d8fae4 /src
parent47a45aaa0fd1dbc0de45de2ed2995f81a0154baf (diff)
tgsi: Parse extended source register modifiers.
Diffstat (limited to 'src')
-rw-r--r--src/gallium/auxiliary/tgsi/util/tgsi_text.c127
1 files changed, 126 insertions, 1 deletions
diff --git a/src/gallium/auxiliary/tgsi/util/tgsi_text.c b/src/gallium/auxiliary/tgsi/util/tgsi_text.c
index f3fc6758078..c618a50fb9a 100644
--- a/src/gallium/auxiliary/tgsi/util/tgsi_text.c
+++ b/src/gallium/auxiliary/tgsi/util/tgsi_text.c
@@ -393,14 +393,78 @@ parse_src_operand(
struct tgsi_full_src_register *src )
{
const char *cur;
+ float value;
uint file;
uint index;
- /* TODO: Extended register modifiers */
+ if (*ctx->cur == '-') {
+ cur = ctx->cur;
+ cur++;
+ eat_opt_white( &cur );
+ if (*cur == '(') {
+ cur++;
+ src->SrcRegisterExtMod.Negate = 1;
+ eat_opt_white( &cur );
+ ctx->cur = cur;
+ }
+ }
+
+ if (*ctx->cur == '|') {
+ ctx->cur++;
+ eat_opt_white( &ctx->cur );
+ src->SrcRegisterExtMod.Absolute = 1;
+ }
+
if (*ctx->cur == '-') {
ctx->cur++;
+ eat_opt_white( &ctx->cur );
src->SrcRegister.Negate = 1;
+ }
+
+ cur = ctx->cur;
+ if (parse_float( &cur, &value )) {
+ if (value == 2.0f) {
+ eat_opt_white( &cur );
+ if (*cur != '*') {
+ report_error( ctx, "Expected `*'" );
+ return FALSE;
+ }
+ cur++;
+ if (*cur != '(') {
+ report_error( ctx, "Expected `('" );
+ return FALSE;
+ }
+ cur++;
+ src->SrcRegisterExtMod.Scale2X = 1;
+ eat_opt_white( &cur );
+ ctx->cur = cur;
+ }
+ }
+
+ if (*ctx->cur == '(') {
+ ctx->cur++;
eat_opt_white( &ctx->cur );
+ src->SrcRegisterExtMod.Bias = 1;
+ }
+
+ cur = ctx->cur;
+ if (parse_float( &cur, &value )) {
+ if (value == 1.0f) {
+ eat_opt_white( &cur );
+ if (*cur != '-') {
+ report_error( ctx, "Expected `-'" );
+ return FALSE;
+ }
+ cur++;
+ if (*cur != '(') {
+ report_error( ctx, "Expected `('" );
+ return FALSE;
+ }
+ cur++;
+ src->SrcRegisterExtMod.Complement = 1;
+ eat_opt_white( &cur );
+ ctx->cur = cur;
+ }
}
if (!parse_register( ctx, &file, &index ))
@@ -438,6 +502,67 @@ parse_src_operand(
ctx->cur = cur;
}
+
+ if (src->SrcRegisterExtMod.Complement) {
+ eat_opt_white( &ctx->cur );
+ if (*ctx->cur != ')') {
+ report_error( ctx, "Expected `)'" );
+ return FALSE;
+ }
+ ctx->cur++;
+ }
+
+ if (src->SrcRegisterExtMod.Bias) {
+ eat_opt_white( &ctx->cur );
+ if (*ctx->cur != ')') {
+ report_error( ctx, "Expected `)'" );
+ return FALSE;
+ }
+ ctx->cur++;
+ eat_opt_white( &ctx->cur );
+ if (*ctx->cur != '-') {
+ report_error( ctx, "Expected `-'" );
+ return FALSE;
+ }
+ ctx->cur++;
+ eat_opt_white( &ctx->cur );
+ if (!parse_float( &ctx->cur, &value )) {
+ report_error( ctx, "Expected literal floating point" );
+ return FALSE;
+ }
+ if (value != 0.5f) {
+ report_error( ctx, "Expected 0.5" );
+ return FALSE;
+ }
+ }
+
+ if (src->SrcRegisterExtMod.Scale2X) {
+ eat_opt_white( &ctx->cur );
+ if (*ctx->cur != ')') {
+ report_error( ctx, "Expected `)'" );
+ return FALSE;
+ }
+ ctx->cur++;
+ }
+
+ if (src->SrcRegisterExtMod.Absolute) {
+ eat_opt_white( &ctx->cur );
+ if (*ctx->cur != '|') {
+ report_error( ctx, "Expected `|'" );
+ return FALSE;
+ }
+ ctx->cur++;
+ }
+
+ if (src->SrcRegisterExtMod.Negate) {
+ eat_opt_white( &ctx->cur );
+ if (*ctx->cur != ')') {
+ report_error( ctx, "Expected `)'" );
+ return FALSE;
+ }
+ ctx->cur++;
+ }
+
return TRUE;
}