diff options
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_eu_emit.c')
-rw-r--r-- | src/mesa/drivers/dri/i965/brw_eu_emit.c | 84 |
1 files changed, 79 insertions, 5 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_eu_emit.c b/src/mesa/drivers/dri/i965/brw_eu_emit.c index 21ce8369db..60ea44f7a9 100644 --- a/src/mesa/drivers/dri/i965/brw_eu_emit.c +++ b/src/mesa/drivers/dri/i965/brw_eu_emit.c @@ -952,7 +952,7 @@ void brw_dp_READ_16( struct brw_compile *p, /** * Read a float[4] vector from the data port Data Cache (const buffer). - * Scratch offset should be a multiple of 16. + * Location (in buffer) should be a multiple of 16. * Used for fetching shader constants. * If relAddr is true, we'll do an indirect fetch using the address register. */ @@ -960,7 +960,7 @@ void brw_dp_READ_4( struct brw_compile *p, struct brw_reg dest, GLuint msg_reg_nr, GLboolean relAddr, - GLuint scratch_offset, + GLuint location, GLuint bind_table_index ) { { @@ -969,18 +969,20 @@ void brw_dp_READ_4( struct brw_compile *p, brw_set_mask_control(p, BRW_MASK_DISABLE); /* set message header global offset field (reg 0, element 2) */ + /* Note that grf[0] will be copied to mrf[1] implicitly by the SEND instr */ brw_MOV(p, retype(brw_vec1_grf(0, 2), BRW_REGISTER_TYPE_UD), - brw_imm_d(scratch_offset)); + brw_imm_d(location)); brw_pop_insn_state(p); } { struct brw_instruction *insn = next_insn(p, BRW_OPCODE_SEND); - insn->header.predicate_control = 0; /* XXX */ + insn->header.predicate_control = BRW_PREDICATE_NONE; insn->header.compression_control = BRW_COMPRESSION_NONE; insn->header.destreg__conditonalmod = msg_reg_nr; + insn->header.mask_control = BRW_MASK_DISABLE; /* cast dest to a uword[8] vector */ dest = retype(vec8(dest), BRW_REGISTER_TYPE_UW); @@ -989,7 +991,7 @@ void brw_dp_READ_4( struct brw_compile *p, brw_set_src0(insn, retype(brw_vec8_grf(0, 0), BRW_REGISTER_TYPE_UW)); brw_set_dp_read_message(insn, - bind_table_index, /* binding table index (255=stateless) */ + bind_table_index, 0, /* msg_control (0 means 1 Oword) */ BRW_DATAPORT_READ_MESSAGE_OWORD_BLOCK_READ, /* msg_type */ 0, /* source cache = data cache */ @@ -1000,6 +1002,78 @@ void brw_dp_READ_4( struct brw_compile *p, } +/** + * Read float[4] constant(s) from VS constant buffer. + * For relative addressing, two float[4] constants will be read into 'dest'. + * Otherwise, one float[4] constant will be read into the lower half of 'dest'. + */ +void brw_dp_READ_4_vs(struct brw_compile *p, + struct brw_reg dest, + GLuint oword, + GLboolean relAddr, + struct brw_reg addrReg, + GLuint location, + GLuint bind_table_index) +{ + GLuint msg_reg_nr = 1; + + assert(oword < 2); + /* + printf("vs const read msg, location %u, msg_reg_nr %d\n", + location, msg_reg_nr); + */ + + /* Setup MRF[1] with location/offset into const buffer */ + { + struct brw_reg b; + + brw_push_insn_state(p); + brw_set_compression_control(p, BRW_COMPRESSION_NONE); + brw_set_mask_control(p, BRW_MASK_DISABLE); + brw_set_predicate_control(p, BRW_PREDICATE_NONE); + /*brw_set_access_mode(p, BRW_ALIGN_16);*/ + + /* XXX I think we're setting all the dwords of MRF[1] to 'location'. + * when the docs say only dword[2] should be set. Hmmm. But it works. + */ + b = brw_message_reg(msg_reg_nr); + b = retype(b, BRW_REGISTER_TYPE_UD); + /*b = get_element_ud(b, 2);*/ + if (relAddr) { + brw_ADD(p, b, addrReg, brw_imm_ud(location)); + } + else { + brw_MOV(p, b, brw_imm_ud(location)); + } + + brw_pop_insn_state(p); + } + + { + struct brw_instruction *insn = next_insn(p, BRW_OPCODE_SEND); + + insn->header.predicate_control = BRW_PREDICATE_NONE; + insn->header.compression_control = BRW_COMPRESSION_NONE; + insn->header.destreg__conditonalmod = msg_reg_nr; + insn->header.mask_control = BRW_MASK_DISABLE; + /*insn->header.access_mode = BRW_ALIGN_16;*/ + + brw_set_dest(insn, dest); + brw_set_src0(insn, brw_null_reg()); + + brw_set_dp_read_message(insn, + bind_table_index, + oword, /* 0 = lower Oword, 1 = upper Oword */ + BRW_DATAPORT_READ_MESSAGE_OWORD_BLOCK_READ, /* msg_type */ + 0, /* source cache = data cache */ + 1, /* msg_length */ + 1, /* response_length (1 Oword) */ + 0); /* eot */ + } +} + + + void brw_fb_WRITE(struct brw_compile *p, struct brw_reg dest, GLuint msg_reg_nr, |