diff options
author | Brian Paul <brianp@vmware.com> | 2009-04-14 22:14:30 -0600 |
---|---|---|
committer | Brian Paul <brianp@vmware.com> | 2009-04-14 22:14:30 -0600 |
commit | 7db7ff878d3e5a6b345228e6eaee4797bb68b360 (patch) | |
tree | 9dbdcfc3d9bc37d88f7e86f22f7c8f18b9420b14 /src/mesa/shader/nvfragparse.c | |
parent | 0115a4f8f1952b166eaad09f317ff8bc465e0f28 (diff) |
mesa: merge the prog_src_register::NegateBase and NegateAbs fields
There's really no need for two negation fields. This came from the
GL_NV_fragment_program extension. The new, unified Negate bitfield applies
after the absolute value step.
Diffstat (limited to 'src/mesa/shader/nvfragparse.c')
-rw-r--r-- | src/mesa/shader/nvfragparse.c | 33 |
1 files changed, 19 insertions, 14 deletions
diff --git a/src/mesa/shader/nvfragparse.c b/src/mesa/shader/nvfragparse.c index 56b7c29bea..0fd55524ab 100644 --- a/src/mesa/shader/nvfragparse.c +++ b/src/mesa/shader/nvfragparse.c @@ -957,6 +957,7 @@ Parse_VectorSrc(struct parse_state *parseState, GLfloat sign = 1.0F; GLubyte token[100]; GLint idx; + GLuint negateBase, negateAbs; /* * First, take care of +/- and absolute value stuff. @@ -968,21 +969,23 @@ Parse_VectorSrc(struct parse_state *parseState, if (Parse_String(parseState, "|")) { srcReg->Abs = GL_TRUE; - srcReg->NegateAbs = (sign < 0.0F) ? GL_TRUE : GL_FALSE; + negateAbs = (sign < 0.0F) ? NEGATE_XYZW : NEGATE_NONE; if (Parse_String(parseState, "-")) - srcReg->NegateBase = NEGATE_XYZW; + negateBase = NEGATE_XYZW; else if (Parse_String(parseState, "+")) - srcReg->NegateBase = NEGATE_NONE; + negateBase = NEGATE_NONE; else - srcReg->NegateBase = NEGATE_NONE; + negateBase = NEGATE_NONE; } else { srcReg->Abs = GL_FALSE; - srcReg->NegateAbs = GL_FALSE; - srcReg->NegateBase = (sign < 0.0F) ? NEGATE_XYZW : NEGATE_NONE; + negateAbs = NEGATE_NONE; + negateBase = (sign < 0.0F) ? NEGATE_XYZW : NEGATE_NONE; } + srcReg->Negate = srcReg->Abs ? negateAbs : negateBase; + /* This should be the real src vector/register name */ if (!Peek_Token(parseState, token)) RETURN_ERROR; @@ -1083,6 +1086,7 @@ Parse_ScalarSrcReg(struct parse_state *parseState, GLfloat sign = 1.0F; GLboolean needSuffix = GL_TRUE; GLint idx; + GLuint negateBase, negateAbs; /* * First, take care of +/- and absolute value stuff. @@ -1094,21 +1098,23 @@ Parse_ScalarSrcReg(struct parse_state *parseState, if (Parse_String(parseState, "|")) { srcReg->Abs = GL_TRUE; - srcReg->NegateAbs = (sign < 0.0F) ? GL_TRUE : GL_FALSE; + negateAbs = (sign < 0.0F) ? NEGATE_XYZW : NEGATE_NONE; if (Parse_String(parseState, "-")) - srcReg->NegateBase = NEGATE_XYZW; + negateBase = NEGATE_XYZW; else if (Parse_String(parseState, "+")) - srcReg->NegateBase = NEGATE_NONE; + negateBase = NEGATE_NONE; else - srcReg->NegateBase = NEGATE_NONE; + negateBase = NEGATE_NONE; } else { srcReg->Abs = GL_FALSE; - srcReg->NegateAbs = GL_FALSE; - srcReg->NegateBase = (sign < 0.0F) ? NEGATE_XYZW : NEGATE_NONE; + negateAbs = NEGATE_NONE; + negateBase = (sign < 0.0F) ? NEGATE_XYZW : NEGATE_NONE; } + srcReg->Negate = srcReg->Abs ? negateAbs : negateBase; + if (!Peek_Token(parseState, token)) RETURN_ERROR; @@ -1247,9 +1253,8 @@ Parse_PrintInstruction(struct parse_state *parseState, } inst->SrcReg[0].Swizzle = SWIZZLE_NOOP; - inst->SrcReg[0].NegateBase = NEGATE_NONE; inst->SrcReg[0].Abs = GL_FALSE; - inst->SrcReg[0].NegateAbs = GL_FALSE; + inst->SrcReg[0].Negate = NEGATE_NONE; return GL_TRUE; } |