diff options
| -rw-r--r-- | src/gallium/drivers/svga/svga_tgsi_insn.c | 89 |
1 files changed, 51 insertions, 38 deletions
diff --git a/src/gallium/drivers/svga/svga_tgsi_insn.c b/src/gallium/drivers/svga/svga_tgsi_insn.c index a868108098e..f5842eff3d2 100644 --- a/src/gallium/drivers/svga/svga_tgsi_insn.c +++ b/src/gallium/drivers/svga/svga_tgsi_insn.c @@ -528,6 +528,55 @@ static boolean submit_op4( struct svga_shader_emitter *emit, } +static boolean alias_src_dst( struct src_register src, + SVGA3dShaderDestToken dst ) +{ + if (src.base.num != dst.num) + return FALSE; + + if (SVGA3dShaderGetRegType(dst.value) != + SVGA3dShaderGetRegType(src.base.value)) + return FALSE; + + return TRUE; +} + + +static boolean submit_lrp(struct svga_shader_emitter *emit, + SVGA3dShaderDestToken dst, + struct src_register src0, + struct src_register src1, + struct src_register src2) +{ + SVGA3dShaderDestToken tmp; + boolean need_dst_tmp = FALSE; + + /* The dst reg must be a temporary, and not be the same as src0 or src2 */ + if (SVGA3dShaderGetRegType(dst.value) != SVGA3DREG_TEMP || + alias_src_dst(src0, dst) || + alias_src_dst(src2, dst)) + need_dst_tmp = TRUE; + + if (need_dst_tmp) { + tmp = get_temp( emit ); + tmp.mask = dst.mask; + } + else { + tmp = dst; + } + + if (!submit_op3(emit, inst_token( SVGA3DOP_LRP ), tmp, src0, src1, src2)) + return FALSE; + + if (need_dst_tmp) { + if (!submit_op1(emit, inst_token( SVGA3DOP_MOV ), dst, src( tmp ))) + return FALSE; + } + + return TRUE; +} + + static boolean emit_def_const( struct svga_shader_emitter *emit, SVGA3dShaderConstType type, unsigned idx, @@ -864,7 +913,7 @@ static boolean emit_cmp(struct svga_shader_emitter *emit, */ if (!submit_op2(emit, inst_token(SVGA3DOP_SLT), temp, src0, zero)) return FALSE; - return submit_op3(emit, inst_token(SVGA3DOP_LRP), dst, src(temp), src1, src2); + return submit_lrp(emit, dst, src(temp), src1, src2); } /* CMP DST, SRC0, SRC2, SRC1 */ @@ -1691,19 +1740,6 @@ static boolean emit_arl(struct svga_shader_emitter *emit, } } -static boolean alias_src_dst( struct src_register src, - SVGA3dShaderDestToken dst ) -{ - if (src.base.num != dst.num) - return FALSE; - - if (SVGA3dShaderGetRegType(dst.value) != - SVGA3dShaderGetRegType(src.base.value)) - return FALSE; - - return TRUE; -} - static boolean emit_pow(struct svga_shader_emitter *emit, const struct tgsi_full_instruction *insn) { @@ -1796,37 +1832,14 @@ static boolean emit_lrp(struct svga_shader_emitter *emit, const struct tgsi_full_instruction *insn) { SVGA3dShaderDestToken dst = translate_dst_register( emit, insn, 0 ); - SVGA3dShaderDestToken tmp; const struct src_register src0 = translate_src_register( emit, &insn->Src[0] ); const struct src_register src1 = translate_src_register( emit, &insn->Src[1] ); const struct src_register src2 = translate_src_register( emit, &insn->Src[2] ); - boolean need_dst_tmp = FALSE; - /* The dst reg must not be the same as src0 or src2 */ - if (alias_src_dst(src0, dst) || - alias_src_dst(src2, dst)) - need_dst_tmp = TRUE; - - if (need_dst_tmp) { - tmp = get_temp( emit ); - tmp.mask = dst.mask; - } - else { - tmp = dst; - } - - if (!submit_op3(emit, inst_token( SVGA3DOP_LRP ), tmp, src0, src1, src2)) - return FALSE; - - if (need_dst_tmp) { - if (!submit_op1(emit, inst_token( SVGA3DOP_MOV ), dst, src( tmp ))) - return FALSE; - } - - return TRUE; + return submit_lrp(emit, dst, src0, src1, src2); } |