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r300/compiler: implement SGT+SLE opcodes

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Reported-by: Gianluca Anzolin <gianluca@sottospazio.it>
This commit is contained in:
Marek Olšák 2010-05-26 04:36:29 +02:00
parent 49bac3ccd8
commit f0896e7f80
1 changed files with 20 additions and 0 deletions
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20
src/mesa/drivers/dri/r300/compiler/radeon_program_alu.c
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@ -600,6 +600,24 @@ static void transform_r300_vertex_fix_LIT(struct radeon_compiler* c,
inst->U.I.SrcReg[0] = srcreg(RC_FILE_TEMPORARY, tempreg);
}
static void transform_r300_vertex_SGT(struct radeon_compiler* c,
struct rc_instruction* inst)
{
/* x > y <==> -x < -y */
inst->U.I.Opcode = RC_OPCODE_SLT;
inst->U.I.SrcReg[0].Negate ^= RC_MASK_XYZW;
inst->U.I.SrcReg[1].Negate ^= RC_MASK_XYZW;
}
static void transform_r300_vertex_SLE(struct radeon_compiler* c,
struct rc_instruction* inst)
{
/* x <= y <==> -x >= -y */
inst->U.I.Opcode = RC_OPCODE_SGE;
inst->U.I.SrcReg[0].Negate ^= RC_MASK_XYZW;
inst->U.I.SrcReg[1].Negate ^= RC_MASK_XYZW;
}
/**
* For use with radeonLocalTransform, this transforms non-native ALU
* instructions of the r300 up to r500 vertex engine.
@ -621,6 +639,8 @@ int r300_transform_vertex_alu(
case RC_OPCODE_SUB: transform_SUB(c, inst); return 1;
case RC_OPCODE_SWZ: transform_SWZ(c, inst); return 1;
case RC_OPCODE_XPD: transform_XPD(c, inst); return 1;
case RC_OPCODE_SLE: transform_r300_vertex_SLE(c, inst); return 1;
case RC_OPCODE_SGT: transform_r300_vertex_SGT(c, inst); return 1;
default:
return 0;
}