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r600g: implement ISSG on r600-evergreen

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Signed-off-by: Vadim Girlin <vadimgirlin@gmail.com>
This commit is contained in:
Vadim Girlin
2012-01-15 18:56:34 +04:00
committed by Dave Airlie
parent 6b44470bb2
commit 42539d569a
1 changed files with 63 additions and 0 deletions
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src/gallium/drivers/r600/r600_shader.c
+63
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@@ -1983,6 +1983,67 @@ static int tgsi_iabs(struct r600_shader_ctx *ctx)
return 0;
}
static int tgsi_issg(struct r600_shader_ctx *ctx)
{
struct tgsi_full_instruction *inst = &ctx->parse.FullToken.FullInstruction;
struct r600_bytecode_alu alu;
int i, r;
unsigned write_mask = inst->Dst[0].Register.WriteMask;
int last_inst = tgsi_last_instruction(write_mask);
/* tmp = (src >= 0 ? src : -1) */
for (i = 0; i < 4; i++) {
if (!(write_mask & (1<<i)))
continue;
memset(&alu, 0, sizeof(struct r600_bytecode_alu));
alu.inst = CTX_INST(V_SQ_ALU_WORD1_OP3_SQ_OP3_INST_CNDGE_INT);
alu.is_op3 = 1;
alu.dst.sel = ctx->temp_reg;
alu.dst.chan = i;
alu.dst.write = 1;
r600_bytecode_src(&alu.src[0], &ctx->src[0], i);
r600_bytecode_src(&alu.src[1], &ctx->src[0], i);
alu.src[2].sel = V_SQ_ALU_SRC_M_1_INT;
if (i == last_inst)
alu.last = 1;
r = r600_bytecode_add_alu(ctx->bc, &alu);
if (r)
return r;
}
/* dst = (tmp > 0 ? 1 : tmp) */
for (i = 0; i < 4; i++) {
if (!(write_mask & (1<<i)))
continue;
memset(&alu, 0, sizeof(struct r600_bytecode_alu));
alu.inst = CTX_INST(V_SQ_ALU_WORD1_OP3_SQ_OP3_INST_CNDGT_INT);
alu.is_op3 = 1;
alu.dst.write = 1;
tgsi_dst(ctx, &inst->Dst[0], i, &alu.dst);
alu.src[0].sel = ctx->temp_reg;
alu.src[0].chan = i;
alu.src[1].sel = V_SQ_ALU_SRC_1_INT;
alu.src[2].sel = ctx->temp_reg;
alu.src[2].chan = i;
if (i == last_inst)
alu.last = 1;
r = r600_bytecode_add_alu(ctx->bc, &alu);
if (r)
return r;
}
return 0;
}
static int tgsi_ssg(struct r600_shader_ctx *ctx)
@@ -3774,6 +3835,7 @@ static struct r600_shader_tgsi_instruction r600_shader_tgsi_instruction[] = {
{TGSI_OPCODE_UARL, 0, V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_MOVA_INT, tgsi_r600_arl},
{TGSI_OPCODE_UCMP, 0, 0, tgsi_unsupported},
{TGSI_OPCODE_IABS, 0, 0, tgsi_iabs},
{TGSI_OPCODE_ISSG, 0, 0, tgsi_issg},
{TGSI_OPCODE_LAST, 0, V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
};
@@ -3947,6 +4009,7 @@ static struct r600_shader_tgsi_instruction eg_shader_tgsi_instruction[] = {
{TGSI_OPCODE_UARL, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_MOVA_INT, tgsi_eg_arl},
{TGSI_OPCODE_UCMP, 0, 0, tgsi_unsupported},
{TGSI_OPCODE_IABS, 0, 0, tgsi_iabs},
{TGSI_OPCODE_ISSG, 0, 0, tgsi_issg},
{TGSI_OPCODE_LAST, 0, EG_V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
};