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r600g: add CMP support.

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ported from r600c, fixes fp-cmp, glsl1-sqrt*
This commit is contained in:
Dave Airlie 2010-08-24 09:18:32 +10:00
parent c60c2d3a64
commit 87f44d5723
1 changed files with 50 additions and 1 deletions
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51
src/gallium/drivers/r600/r600_shader.c
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@ -1446,6 +1446,55 @@ static int tgsi_lrp(struct r600_shader_ctx *ctx)
return tgsi_helper_copy(ctx, inst);
}
static int tgsi_cmp(struct r600_shader_ctx *ctx)
{
struct tgsi_full_instruction *inst = &ctx->parse.FullToken.FullInstruction;
struct r600_bc_alu_src r600_src[3];
struct r600_bc_alu alu;
int use_temp = 0;
int i, r;
r = tgsi_split_constant(ctx, r600_src);
if (r)
return r;
if (inst->Dst[0].Register.WriteMask != 0xf)
use_temp = 1;
for (i = 0; i < 4; i++) {
memset(&alu, 0, sizeof(struct r600_bc_alu));
alu.inst = V_SQ_ALU_WORD1_OP3_SQ_OP3_INST_CNDGE;
alu.src[0] = r600_src[0];
alu.src[0].chan = tgsi_chan(&inst->Src[0], i);
alu.src[1] = r600_src[2];
alu.src[1].chan = tgsi_chan(&inst->Src[2], i);
alu.src[2] = r600_src[1];
alu.src[2].chan = tgsi_chan(&inst->Src[1], i);
if (use_temp)
alu.dst.sel = ctx->temp_reg;
else {
r = tgsi_dst(ctx, &inst->Dst[0], i, &alu.dst);
if (r)
return r;
}
alu.dst.chan = i;
alu.dst.write = 1;
alu.is_op3 = 1;
if (i == 3)
alu.last = 1;
r = r600_bc_add_alu(ctx->bc, &alu);
if (r)
return r;
}
if (use_temp)
return tgsi_helper_copy(ctx, inst);
return 0;
}
static struct r600_shader_tgsi_instruction r600_shader_tgsi_instruction[] = {
{TGSI_OPCODE_ARL, 0, V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
{TGSI_OPCODE_MOV, 0, V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_MOV, tgsi_op2},
@ -1516,7 +1565,7 @@ static struct r600_shader_tgsi_instruction r600_shader_tgsi_instruction[] = {
{TGSI_OPCODE_CAL, 0, V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
{TGSI_OPCODE_RET, 0, V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
{TGSI_OPCODE_SSG, 0, V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_ssg},
{TGSI_OPCODE_CMP, 0, V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
{TGSI_OPCODE_CMP, 0, V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_cmp},
{TGSI_OPCODE_SCS, 0, V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
{TGSI_OPCODE_TXB, 0, SQ_TEX_INST_SAMPLE_L, tgsi_tex},
{TGSI_OPCODE_NRM, 0, V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},