Signed-off-by: Vadim Girlin <vadimgir...@gmail.com>
---
src/gallium/drivers/r600/r600_shader.c | 63 ++++++++++++++++++++++++++++++++
1 files changed, 63 insertions(+), 0 deletions(-)
diff --git a/src/gallium/drivers/r600/r600_shader.c
b/src/gallium/drivers/r600/r600_shader.c
index 9a0f76b..0e672de 100644
--- a/src/gallium/drivers/r600/r600_shader.c
+++ b/src/gallium/drivers/r600/r600_shader.c
@@ -2125,6 +2125,67 @@ 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)
@@ -3916,6 +3977,7 @@ 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},
};
@@ -4089,6 +4151,7 @@ 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},
};
--
1.7.7.5
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