diff options
| -rw-r--r-- | src/gallium/drivers/svga/svga_tgsi_insn.c | 40 |
1 files changed, 39 insertions, 1 deletions
diff --git a/src/gallium/drivers/svga/svga_tgsi_insn.c b/src/gallium/drivers/svga/svga_tgsi_insn.c index f2591c5721..5f262b3ead 100644 --- a/src/gallium/drivers/svga/svga_tgsi_insn.c +++ b/src/gallium/drivers/svga/svga_tgsi_insn.c @@ -57,7 +57,6 @@ translate_opcode( case TGSI_OPCODE_MUL: return SVGA3DOP_MUL; case TGSI_OPCODE_NOP: return SVGA3DOP_NOP; case TGSI_OPCODE_NRM4: return SVGA3DOP_NRM; - case TGSI_OPCODE_SSG: return SVGA3DOP_SGN; default: debug_printf("Unkown opcode %u\n", opcode); assert( 0 ); @@ -1066,6 +1065,41 @@ static boolean emit_cos(struct svga_shader_emitter *emit, return TRUE; } +static boolean emit_ssg(struct svga_shader_emitter *emit, + const struct tgsi_full_instruction *insn ) +{ + SVGA3dShaderDestToken dst = translate_dst_register( emit, insn, 0 ); + struct src_register src0 = translate_src_register( + emit, &insn->Src[0] ); + SVGA3dShaderDestToken temp0 = get_temp( emit ); + SVGA3dShaderDestToken temp1 = get_temp( emit ); + struct src_register zero, one; + + if (emit->unit == PIPE_SHADER_VERTEX) { + /* SGN DST, SRC0, TMP0, TMP1 */ + return submit_op3( emit, inst_token( SVGA3DOP_SGN ), dst, src0, + src( temp0 ), src( temp1 ) ); + } + + zero = get_zero_immediate( emit ); + one = scalar( zero, TGSI_SWIZZLE_W ); + zero = scalar( zero, TGSI_SWIZZLE_X ); + + /* CMP TMP0, SRC0, one, zero */ + if (!submit_op3( emit, inst_token( SVGA3DOP_CMP ), + writemask( temp0, dst.mask ), src0, one, zero )) + return FALSE; + + /* CMP TMP1, negate(SRC0), negate(one), zero */ + if (!submit_op3( emit, inst_token( SVGA3DOP_CMP ), + writemask( temp1, dst.mask ), negate( src0 ), negate( one ), + zero )) + return FALSE; + + /* ADD DST, TMP0, TMP1 */ + return submit_op2( emit, inst_token( SVGA3DOP_ADD ), dst, src( temp0 ), + src( temp1 ) ); +} /* * ADD DST SRC0, negate(SRC0) @@ -2366,6 +2400,9 @@ static boolean svga_emit_instruction( struct svga_shader_emitter *emit, case TGSI_OPCODE_LRP: return emit_lrp( emit, insn ); + case TGSI_OPCODE_SSG: + return emit_ssg( emit, insn ); + default: { unsigned opcode = translate_opcode(insn->Instruction.Opcode); @@ -2715,6 +2752,7 @@ needs_to_create_zero( struct svga_shader_emitter *emit ) return TRUE; if (emit->info.opcode_count[TGSI_OPCODE_DST] >= 1 || + emit->info.opcode_count[TGSI_OPCODE_SSG] >= 1 || emit->info.opcode_count[TGSI_OPCODE_LIT] >= 1) return TRUE; } |