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Diffstat (limited to 'src/mesa/main/nvfragparse.c')
-rw-r--r--src/mesa/main/nvfragparse.c87
1 files changed, 56 insertions, 31 deletions
diff --git a/src/mesa/main/nvfragparse.c b/src/mesa/main/nvfragparse.c
index 597f4e6d2c..06fa90ecbb 100644
--- a/src/mesa/main/nvfragparse.c
+++ b/src/mesa/main/nvfragparse.c
@@ -1,4 +1,4 @@
-/* $Id: nvfragparse.c,v 1.9 2003/02/25 19:30:27 brianp Exp $ */
+/* $Id: nvfragparse.c,v 1.10 2003/02/25 20:07:43 brianp Exp $ */
/*
* Mesa 3-D graphics library
@@ -1012,30 +1012,48 @@ Parse_MaskedDstReg(struct parse_state *parseState,
}
+/**
+ * Parse a vector source (register, constant, etc):
+ * <vectorSrc> ::= <absVectorSrc>
+ * | <baseVectorSrc>
+ * <absVectorSrc> ::= <negate> "|" <baseVectorSrc> "|"
+ */
static GLboolean
-Parse_SwizzleSrcReg(struct parse_state *parseState,
- struct fp_src_register *srcReg)
+Parse_VectorSrc(struct parse_state *parseState,
+ struct fp_src_register *srcReg)
{
+ GLfloat sign = 1.0F;
GLubyte token[100];
- /* XXX need to parse absolute value and another negation ***/
- srcReg->NegateBase = GL_FALSE;
- srcReg->Abs = GL_FALSE;
- srcReg->NegateAbs = GL_FALSE;
-
- /* check for '-' */
- if (!Peek_Token(parseState, token))
- RETURN_ERROR;
- if (token[0] == '-') {
- (void) Parse_String(parseState, "-");
- srcReg->NegateBase = GL_TRUE;
- if (!Peek_Token(parseState, token))
- RETURN_ERROR;
+ /*
+ * First, take care of +/- and absolute value stuff.
+ */
+ if (Parse_String(parseState, "-"))
+ sign = -1.0F;
+ else if (Parse_String(parseState, "+"))
+ sign = +1.0F;
+
+ if (Parse_String(parseState, "|")) {
+ srcReg->Abs = GL_TRUE;
+ srcReg->NegateAbs = (sign < 0.0F) ? GL_TRUE : GL_FALSE;
+
+ if (Parse_String(parseState, "-"))
+ srcReg->NegateBase = GL_TRUE;
+ else if (Parse_String(parseState, "+"))
+ srcReg->NegateBase = GL_FALSE;
+ else
+ srcReg->NegateBase = GL_FALSE;
}
else {
- srcReg->NegateBase = GL_FALSE;
+ srcReg->Abs = GL_FALSE;
+ srcReg->NegateAbs = GL_FALSE;
+ srcReg->NegateBase = (sign < 0.0F) ? GL_TRUE : GL_FALSE;
}
+ /* This should be the real src vector/register name */
+ if (!Peek_Token(parseState, token))
+ RETURN_ERROR;
+
/* Src reg can be R<n>, H<n> or a named fragment attrib */
if (token[0] == 'R' || token[0] == 'H') {
if (!Parse_TempReg(parseState, &srcReg->Register))
@@ -1049,8 +1067,11 @@ Parse_SwizzleSrcReg(struct parse_state *parseState,
if (!Parse_ProgramParamReg(parseState, &srcReg->Register))
RETURN_ERROR;
}
+ else if (IsLetter(token[0])){
+ /* XXX parse defined/declared constant or vector literal */
+
+ }
else {
- /* Also parse defined/declared constant or vector literal */
RETURN_ERROR2("Bad source register name", token);
}
@@ -1073,6 +1094,11 @@ Parse_SwizzleSrcReg(struct parse_state *parseState,
RETURN_ERROR1("Bad swizzle suffix");
}
+ /* Finish absolute value */
+ if (srcReg->Abs && !Parse_String(parseState, "|")) {
+ RETURN_ERROR1("Expected |");
+ }
+
return GL_TRUE;
}
@@ -1157,7 +1183,6 @@ Parse_InstructionSequence(struct parse_state *parseState,
/* get token */
if (!Parse_Token(parseState, token)) {
inst->Opcode = FP_OPCODE_END;
- printf("END OF PROGRAM %d\n", parseState->numInst);
parseState->numInst++;
break;
}
@@ -1234,27 +1259,27 @@ Parse_InstructionSequence(struct parse_state *parseState,
}
if (instMatch.inputs == INPUT_1V) {
- if (!Parse_SwizzleSrcReg(parseState, &inst->SrcReg[0]))
+ if (!Parse_VectorSrc(parseState, &inst->SrcReg[0]))
RETURN_ERROR;
}
else if (instMatch.inputs == INPUT_2V) {
- if (!Parse_SwizzleSrcReg(parseState, &inst->SrcReg[0]))
+ if (!Parse_VectorSrc(parseState, &inst->SrcReg[0]))
RETURN_ERROR;
if (!Parse_String(parseState, ","))
RETURN_ERROR1("Expected ,");
- if (!Parse_SwizzleSrcReg(parseState, &inst->SrcReg[1]))
+ if (!Parse_VectorSrc(parseState, &inst->SrcReg[1]))
RETURN_ERROR;
}
else if (instMatch.inputs == INPUT_3V) {
- if (!Parse_SwizzleSrcReg(parseState, &inst->SrcReg[1]))
+ if (!Parse_VectorSrc(parseState, &inst->SrcReg[1]))
RETURN_ERROR;
if (!Parse_String(parseState, ","))
RETURN_ERROR1("Expected ,");
- if (!Parse_SwizzleSrcReg(parseState, &inst->SrcReg[1]))
+ if (!Parse_VectorSrc(parseState, &inst->SrcReg[1]))
RETURN_ERROR;
if (!Parse_String(parseState, ","))
RETURN_ERROR1("Expected ,");
- if (!Parse_SwizzleSrcReg(parseState, &inst->SrcReg[1]))
+ if (!Parse_VectorSrc(parseState, &inst->SrcReg[1]))
RETURN_ERROR;
}
else if (instMatch.inputs == INPUT_1S) {
@@ -1273,7 +1298,7 @@ Parse_InstructionSequence(struct parse_state *parseState,
/* XXX to-do */
}
else if (instMatch.inputs == INPUT_1V_T) {
- if (!Parse_SwizzleSrcReg(parseState, &inst->SrcReg[0]))
+ if (!Parse_VectorSrc(parseState, &inst->SrcReg[0]))
RETURN_ERROR;
if (!Parse_String(parseState, ","))
RETURN_ERROR1("Expected ,");
@@ -1282,15 +1307,15 @@ Parse_InstructionSequence(struct parse_state *parseState,
RETURN_ERROR;
}
else if (instMatch.inputs == INPUT_3V_T) {
- if (!Parse_SwizzleSrcReg(parseState, &inst->SrcReg[0]))
+ if (!Parse_VectorSrc(parseState, &inst->SrcReg[0]))
RETURN_ERROR;
if (!Parse_String(parseState, ","))
RETURN_ERROR1("Expected ,");
- if (!Parse_SwizzleSrcReg(parseState, &inst->SrcReg[1]))
+ if (!Parse_VectorSrc(parseState, &inst->SrcReg[1]))
RETURN_ERROR;
if (!Parse_String(parseState, ","))
RETURN_ERROR1("Expected ,");
- if (!Parse_SwizzleSrcReg(parseState, &inst->SrcReg[2]))
+ if (!Parse_VectorSrc(parseState, &inst->SrcReg[2]))
RETURN_ERROR;
if (!Parse_String(parseState, ","))
RETURN_ERROR1("Expected ,");
@@ -1407,9 +1432,9 @@ _mesa_parse_nv_fragment_program(GLcontext *ctx, GLenum dstTarget,
_mesa_assign_program_registers(&(program->SymbolTable));
#ifdef DEBUG
- _mesa_printf("--- glLoadProgramNV result ---\n");
+ _mesa_printf("--- glLoadProgramNV(%d) result ---\n", program->Base.Id);
_mesa_print_nv_fragment_program(program);
- _mesa_printf("------------------------------\n");
+ _mesa_printf("----------------------------------\n");
#endif
}
else {
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-14 02:54:07 +0000