From 213ec8251cb3e859b41306eae4092d89592c33db Mon Sep 17 00:00:00 2001 From: Pierre Ossman Date: Sun, 1 Nov 2009 22:28:02 +0100 Subject: r600: implement LOG op in compiler --- src/mesa/drivers/dri/r600/r700_assembler.c | 216 ++++++++++++++++++++++++++++- src/mesa/drivers/dri/r600/r700_assembler.h | 1 + 2 files changed, 214 insertions(+), 3 deletions(-) (limited to 'src/mesa/drivers') diff --git a/src/mesa/drivers/dri/r600/r700_assembler.c b/src/mesa/drivers/dri/r600/r700_assembler.c index fbf1f29fa3..e0d7d4fa6b 100644 --- a/src/mesa/drivers/dri/r600/r700_assembler.c +++ b/src/mesa/drivers/dri/r600/r700_assembler.c @@ -3037,6 +3037,217 @@ GLboolean assemble_LRP(r700_AssemblerBase *pAsm) return GL_TRUE; } +GLboolean assemble_LOG(r700_AssemblerBase *pAsm) +{ + BITS tmp1, tmp2, tmp3; + + checkop1(pAsm); + + tmp1 = gethelpr(pAsm); + tmp2 = gethelpr(pAsm); + tmp3 = gethelpr(pAsm); + + // FIXME: The hardware can do fabs() directly on input + // elements, but the compiler doesn't have the + // capability to use that. + + // MAX tmp1.x, a.x, -a.x (fabs(a.x)) + + pAsm->D.dst.opcode = SQ_OP2_INST_MAX; + + setaddrmode_PVSDST(&(pAsm->D.dst), ADDR_ABSOLUTE); + pAsm->D.dst.rtype = DST_REG_TEMPORARY; + pAsm->D.dst.reg = tmp1; + pAsm->D.dst.writex = 1; + + if( GL_FALSE == assemble_src(pAsm, 0, -1) ) + { + return GL_FALSE; + } + + pAsm->S[1].bits = pAsm->S[0].bits; + flipneg_PVSSRC(&(pAsm->S[1].src)); + + if ( GL_FALSE == next_ins(pAsm) ) + { + return GL_FALSE; + } + + // Entire algo: + // + // LG2 tmp2.x, tmp1.x + // FLOOR tmp3.x, tmp2.x + // MOV dst.x, tmp3.x + // ADD tmp3.x, tmp2.x, -tmp3.x + // EX2 dst.y, tmp3.x + // MOV dst.z, tmp2.x + // MOV dst.w, 1.0 + + // LG2 tmp2.x, tmp1.x + // FLOOR tmp3.x, tmp2.x + + pAsm->D.dst.opcode = SQ_OP2_INST_LOG_IEEE; + pAsm->D.dst.math = 1; + + setaddrmode_PVSDST(&(pAsm->D.dst), ADDR_ABSOLUTE); + pAsm->D.dst.rtype = DST_REG_TEMPORARY; + pAsm->D.dst.reg = tmp2; + pAsm->D.dst.writex = 1; + + setaddrmode_PVSSRC(&(pAsm->S[0].src), ADDR_ABSOLUTE); + pAsm->S[0].src.rtype = DST_REG_TEMPORARY; + pAsm->S[0].src.reg = tmp1; + + setswizzle_PVSSRC(&(pAsm->S[0].src), SQ_SEL_X); + noneg_PVSSRC(&(pAsm->S[0].src)); + + if( GL_FALSE == next_ins(pAsm) ) + { + return GL_FALSE; + } + + pAsm->D.dst.opcode = SQ_OP2_INST_FLOOR; + + setaddrmode_PVSDST(&(pAsm->D.dst), ADDR_ABSOLUTE); + pAsm->D.dst.rtype = DST_REG_TEMPORARY; + pAsm->D.dst.reg = tmp3; + pAsm->D.dst.writex = 1; + + setaddrmode_PVSSRC(&(pAsm->S[0].src), ADDR_ABSOLUTE); + pAsm->S[0].src.rtype = DST_REG_TEMPORARY; + pAsm->S[0].src.reg = tmp2; + + setswizzle_PVSSRC(&(pAsm->S[0].src), SQ_SEL_X); + noneg_PVSSRC(&(pAsm->S[0].src)); + + if( GL_FALSE == next_ins(pAsm) ) + { + return GL_FALSE; + } + + // MOV dst.x, tmp3.x + + pAsm->D.dst.opcode = SQ_OP2_INST_MOV; + + if( GL_FALSE == assemble_dst(pAsm) ) + { + return GL_FALSE; + } + + pAsm->D.dst.writey = pAsm->D.dst.writez = pAsm->D.dst.writew = 0; + + setaddrmode_PVSSRC(&(pAsm->S[0].src), ADDR_ABSOLUTE); + pAsm->S[0].src.rtype = DST_REG_TEMPORARY; + pAsm->S[0].src.reg = tmp3; + + setswizzle_PVSSRC(&(pAsm->S[0].src), SQ_SEL_X); + noneg_PVSSRC(&(pAsm->S[0].src)); + + if( GL_FALSE == next_ins(pAsm) ) + { + return GL_FALSE; + } + + // ADD tmp3.x, tmp2.x, -tmp3.x + // EX2 dst.y, tmp3.x + + pAsm->D.dst.opcode = SQ_OP2_INST_ADD; + + setaddrmode_PVSDST(&(pAsm->D.dst), ADDR_ABSOLUTE); + pAsm->D.dst.rtype = DST_REG_TEMPORARY; + pAsm->D.dst.reg = tmp3; + pAsm->D.dst.writex = 1; + + setaddrmode_PVSSRC(&(pAsm->S[0].src), ADDR_ABSOLUTE); + pAsm->S[0].src.rtype = DST_REG_TEMPORARY; + pAsm->S[0].src.reg = tmp2; + + setswizzle_PVSSRC(&(pAsm->S[0].src), SQ_SEL_X); + noneg_PVSSRC(&(pAsm->S[0].src)); + + setaddrmode_PVSSRC(&(pAsm->S[1].src), ADDR_ABSOLUTE); + pAsm->S[1].src.rtype = DST_REG_TEMPORARY; + pAsm->S[1].src.reg = tmp3; + + setswizzle_PVSSRC(&(pAsm->S[1].src), SQ_SEL_X); + neg_PVSSRC(&(pAsm->S[1].src)); + + if( GL_FALSE == next_ins(pAsm) ) + { + return GL_FALSE; + } + + pAsm->D.dst.opcode = SQ_OP2_INST_EXP_IEEE; + pAsm->D.dst.math = 1; + + if( GL_FALSE == assemble_dst(pAsm) ) + { + return GL_FALSE; + } + + pAsm->D.dst.writex = pAsm->D.dst.writez = pAsm->D.dst.writew = 0; + + setaddrmode_PVSSRC(&(pAsm->S[0].src), ADDR_ABSOLUTE); + pAsm->S[0].src.rtype = DST_REG_TEMPORARY; + pAsm->S[0].src.reg = tmp3; + + setswizzle_PVSSRC(&(pAsm->S[0].src), SQ_SEL_X); + noneg_PVSSRC(&(pAsm->S[0].src)); + + if( GL_FALSE == next_ins(pAsm) ) + { + return GL_FALSE; + } + + // MOV dst.z, tmp2.x + + pAsm->D.dst.opcode = SQ_OP2_INST_MOV; + + if( GL_FALSE == assemble_dst(pAsm) ) + { + return GL_FALSE; + } + + pAsm->D.dst.writex = pAsm->D.dst.writey = pAsm->D.dst.writew = 0; + + setaddrmode_PVSSRC(&(pAsm->S[0].src), ADDR_ABSOLUTE); + pAsm->S[0].src.rtype = DST_REG_TEMPORARY; + pAsm->S[0].src.reg = tmp2; + + setswizzle_PVSSRC(&(pAsm->S[0].src), SQ_SEL_X); + noneg_PVSSRC(&(pAsm->S[0].src)); + + if( GL_FALSE == next_ins(pAsm) ) + { + return GL_FALSE; + } + + // MOV dst.w 1.0 + + pAsm->D.dst.opcode = SQ_OP2_INST_MOV; + + if( GL_FALSE == assemble_dst(pAsm) ) + { + return GL_FALSE; + } + + pAsm->D.dst.writex = pAsm->D.dst.writey = pAsm->D.dst.writez = 0; + + setaddrmode_PVSSRC(&(pAsm->S[0].src), ADDR_ABSOLUTE); + pAsm->S[0].src.rtype = SRC_REG_TEMPORARY; + pAsm->S[0].src.reg = tmp1; + + setswizzle_PVSSRC(&(pAsm->S[0].src), SQ_SEL_1); + noneg_PVSSRC(&(pAsm->S[0].src)); + + if( GL_FALSE == next_ins(pAsm) ) + { + return GL_FALSE; + } + + return GL_TRUE; +} + GLboolean assemble_MAD(struct r700_AssemblerBase *pAsm) { int tmp, ii; @@ -4166,10 +4377,9 @@ GLboolean AssembleInstr(GLuint uiNumberInsts, return GL_FALSE; break; case OPCODE_LOG: - radeon_error("Not yet implemented instruction OPCODE_LOG \n"); - //if ( GL_FALSE == assemble_BAD("LOG") ) + if ( GL_FALSE == assemble_LOG(pR700AsmCode) ) return GL_FALSE; - break; // approx of LG2 + break; case OPCODE_MAD: if ( GL_FALSE == assemble_MAD(pR700AsmCode) ) diff --git a/src/mesa/drivers/dri/r600/r700_assembler.h b/src/mesa/drivers/dri/r600/r700_assembler.h index 317feb1b7d..c66db502a1 100644 --- a/src/mesa/drivers/dri/r600/r700_assembler.h +++ b/src/mesa/drivers/dri/r600/r700_assembler.h @@ -484,6 +484,7 @@ GLboolean assemble_FRC(r700_AssemblerBase *pAsm); GLboolean assemble_KIL(r700_AssemblerBase *pAsm); GLboolean assemble_LG2(r700_AssemblerBase *pAsm); GLboolean assemble_LRP(r700_AssemblerBase *pAsm); +GLboolean assemble_LOG(r700_AssemblerBase *pAsm); GLboolean assemble_MAD(r700_AssemblerBase *pAsm); GLboolean assemble_LIT(r700_AssemblerBase *pAsm); GLboolean assemble_MAX(r700_AssemblerBase *pAsm); -- cgit v1.2.3