diff options
Diffstat (limited to 'src/gallium')
| -rw-r--r-- | src/gallium/drivers/svga/svga_tgsi_insn.c | 51 |
1 files changed, 48 insertions, 3 deletions
diff --git a/src/gallium/drivers/svga/svga_tgsi_insn.c b/src/gallium/drivers/svga/svga_tgsi_insn.c index 0a72354af8..2ab13cbfbc 100644 --- a/src/gallium/drivers/svga/svga_tgsi_insn.c +++ b/src/gallium/drivers/svga/svga_tgsi_insn.c @@ -46,8 +46,6 @@ translate_opcode( case TGSI_OPCODE_ABS: return SVGA3DOP_ABS; case TGSI_OPCODE_ADD: return SVGA3DOP_ADD; case TGSI_OPCODE_BREAKC: return SVGA3DOP_BREAKC; - case TGSI_OPCODE_DDX: return SVGA3DOP_DSX; - case TGSI_OPCODE_DDY: return SVGA3DOP_DSY; case TGSI_OPCODE_DP2A: return SVGA3DOP_DP2ADD; case TGSI_OPCODE_DP3: return SVGA3DOP_DP3; case TGSI_OPCODE_DP4: return SVGA3DOP_DP4; @@ -1204,7 +1202,8 @@ static boolean emit_tex2(struct svga_shader_emitter *emit, /* Can't do mipmapping inside dynamic branch constructs. Force LOD * zero in that case. */ - if (emit->dynamic_branching_level > 0) { + if (emit->dynamic_branching_level > 0 && + SVGA3dShaderGetRegType(texcoord.base.value) == SVGA3DREG_TEMP) { struct src_register zero = get_zero_immediate( emit ); /* MOV tmp, texcoord */ @@ -1438,6 +1437,46 @@ static boolean emit_simple_instruction(struct svga_shader_emitter *emit, } } + +static boolean emit_deriv(struct svga_shader_emitter *emit, + const struct tgsi_full_instruction *insn ) +{ + if (emit->dynamic_branching_level > 0 && + insn->Src[0].Register.File == TGSI_FILE_TEMPORARY) + { + struct src_register zero = get_zero_immediate( emit ); + SVGA3dShaderDestToken dst = + translate_dst_register( emit, insn, 0 ); + + /* Deriv opcodes not valid inside dynamic branching, workaround + * by zeroing out the destination. + */ + if (!submit_op1(emit, + inst_token( SVGA3DOP_MOV ), + dst, + scalar(zero, TGSI_SWIZZLE_X))) + return FALSE; + + return TRUE; + } + else { + unsigned opcode; + + switch (insn->Instruction.Opcode) { + case TGSI_OPCODE_DDX: + opcode = SVGA3DOP_DSX; + break; + case TGSI_OPCODE_DDY: + opcode = SVGA3DOP_DSY; + break; + default: + return FALSE; + } + + return emit_simple_instruction( emit, opcode, insn ); + } +} + static boolean emit_arl(struct svga_shader_emitter *emit, const struct tgsi_full_instruction *insn) { @@ -2042,6 +2081,10 @@ static boolean svga_emit_instruction( struct svga_shader_emitter *emit, case TGSI_OPCODE_TXD: return emit_tex( emit, insn ); + case TGSI_OPCODE_DDX: + case TGSI_OPCODE_DDY: + return emit_deriv( emit, insn ); + case TGSI_OPCODE_BGNSUB: return emit_bgnsub( emit, position, insn ); @@ -2538,6 +2581,8 @@ needs_to_create_zero( struct svga_shader_emitter *emit ) if (emit->info.opcode_count[TGSI_OPCODE_IF] >= 1 || emit->info.opcode_count[TGSI_OPCODE_BGNLOOP] >= 1 || emit->info.opcode_count[TGSI_OPCODE_BGNFOR] >= 1 || + emit->info.opcode_count[TGSI_OPCODE_DDX] >= 1 || + emit->info.opcode_count[TGSI_OPCODE_DDY] >= 1 || emit->info.opcode_count[TGSI_OPCODE_SGE] >= 1 || emit->info.opcode_count[TGSI_OPCODE_SGT] >= 1 || emit->info.opcode_count[TGSI_OPCODE_SLE] >= 1 || |