static GLboolean
Parse_BiOpInstruction(struct parse_state *parseState,
struct prog_instruction *inst,
enum prog_opcode opcode)
{
if (opcode == OPCODE_DPH && !parseState->isVersion1_1)
RETURN_ERROR1("DPH illegal for vertex program 1.0");
if (opcode == OPCODE_SUB && !parseState->isVersion1_1)
RETURN_ERROR1("SUB illegal for vertex program 1.0");
inst->Opcode = opcode;
inst->StringPos = parseState->curLine - parseState->start;
/* dest reg */
if (!Parse_MaskedDstReg(parseState, &inst->DstReg))
RETURN_ERROR;
/* comma */
if (!Parse_String(parseState, ","))
RETURN_ERROR;
/* first src arg */
if (!Parse_SwizzleSrcReg(parseState, &inst->SrcReg[0]))
RETURN_ERROR;
/* comma */
if (!Parse_String(parseState, ","))
RETURN_ERROR;
/* second src arg */
if (!Parse_SwizzleSrcReg(parseState, &inst->SrcReg[1]))
RETURN_ERROR;
/* semicolon */
if (!Parse_String(parseState, ";"))
RETURN_ERROR;
/* make sure we don't reference more than one program parameter register */
if (inst->SrcReg[0].File == PROGRAM_ENV_PARAM &&
inst->SrcReg[1].File == PROGRAM_ENV_PARAM &&
inst->SrcReg[0].Index != inst->SrcReg[1].Index)
RETURN_ERROR1("Can't reference two program parameter registers");
/* make sure we don't reference more than one vertex attribute register */
if (inst->SrcReg[0].File == PROGRAM_INPUT &&
inst->SrcReg[1].File == PROGRAM_INPUT &&
inst->SrcReg[0].Index != inst->SrcReg[1].Index)
RETURN_ERROR1("Can't reference two vertex attribute registers");
return GL_TRUE;
}
static GLint
Parse_UnaryOpInstruction(struct parse_state *parseState,
struct vp_instruction *inst, enum vp_opcode opcode)
{
if (opcode == VP_OPCODE_ABS && !parseState->isVersion1_1)
RETURN_ERROR1("ABS illegal for vertex program 1.0");
inst->Opcode = opcode;
inst->StringPos = parseState->curLine - parseState->start;
/* dest reg */
if (!Parse_MaskedDstReg(parseState, &inst->DstReg))
RETURN_ERROR;
/* comma */
if (!Parse_String(parseState, ","))
RETURN_ERROR;
/* src arg */
if (!Parse_SwizzleSrcReg(parseState, &inst->SrcReg[0]))
RETURN_ERROR;
/* semicolon */
if (!Parse_String(parseState, ";"))
RETURN_ERROR;
return GL_TRUE;
}
static GLboolean
Parse_TriOpInstruction(struct parse_state *parseState,
struct vp_instruction *inst, enum vp_opcode opcode)
{
inst->Opcode = opcode;
inst->StringPos = parseState->curLine - parseState->start;
/* dest reg */
if (!Parse_MaskedDstReg(parseState, &inst->DstReg))
RETURN_ERROR;
/* comma */
if (!Parse_String(parseState, ","))
RETURN_ERROR;
/* first src arg */
if (!Parse_SwizzleSrcReg(parseState, &inst->SrcReg[0]))
RETURN_ERROR;
/* comma */
if (!Parse_String(parseState, ","))
RETURN_ERROR;
/* second src arg */
if (!Parse_SwizzleSrcReg(parseState, &inst->SrcReg[1]))
RETURN_ERROR;
/* comma */
if (!Parse_String(parseState, ","))
RETURN_ERROR;
/* third src arg */
if (!Parse_SwizzleSrcReg(parseState, &inst->SrcReg[2]))
RETURN_ERROR;
/* semicolon */
if (!Parse_String(parseState, ";"))
RETURN_ERROR;
/* make sure we don't reference more than one program parameter register */
if ((inst->SrcReg[0].File == PROGRAM_ENV_PARAM &&
inst->SrcReg[1].File == PROGRAM_ENV_PARAM &&
inst->SrcReg[0].Index != inst->SrcReg[1].Index) ||
(inst->SrcReg[0].File == PROGRAM_ENV_PARAM &&
inst->SrcReg[2].File == PROGRAM_ENV_PARAM &&
inst->SrcReg[0].Index != inst->SrcReg[2].Index) ||
(inst->SrcReg[1].File == PROGRAM_ENV_PARAM &&
inst->SrcReg[2].File == PROGRAM_ENV_PARAM &&
inst->SrcReg[1].Index != inst->SrcReg[2].Index))
RETURN_ERROR1("Can only reference one program register");
/* make sure we don't reference more than one vertex attribute register */
if ((inst->SrcReg[0].File == PROGRAM_INPUT &&
inst->SrcReg[1].File == PROGRAM_INPUT &&
inst->SrcReg[0].Index != inst->SrcReg[1].Index) ||
(inst->SrcReg[0].File == PROGRAM_INPUT &&
inst->SrcReg[2].File == PROGRAM_INPUT &&
inst->SrcReg[0].Index != inst->SrcReg[2].Index) ||
(inst->SrcReg[1].File == PROGRAM_INPUT &&
inst->SrcReg[2].File == PROGRAM_INPUT &&
inst->SrcReg[1].Index != inst->SrcReg[2].Index))
RETURN_ERROR1("Can only reference one input register");
return GL_TRUE;
}
