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authorJerome Glisse <jglisse@redhat.com>2010-07-28 10:35:32 -0400
committerJerome Glisse <jglisse@redhat.com>2010-07-28 10:35:32 -0400
commitb346c4205dc19c9ffbff48ed8bd89687772a96f8 (patch)
treeeded4e298f051beb6f4430249393217d10ad26bf /src/gallium/drivers
parent9961a0b92de7afed2afec62dadad08d76d1d3374 (diff)
r600g: add lrp instruction support
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Diffstat (limited to 'src/gallium/drivers')
-rw-r--r--src/gallium/drivers/r600/r600_shader.c83
1 files changed, 80 insertions, 3 deletions
diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c
index a2d641dced..3909c704e7 100644
--- a/src/gallium/drivers/r600/r600_shader.c
+++ b/src/gallium/drivers/r600/r600_shader.c
@@ -587,10 +587,8 @@ static int tgsi_lit(struct r600_shader_ctx *ctx)
{
struct tgsi_full_instruction *inst = &ctx->parse.FullToken.FullInstruction;
struct r600_bc_alu alu;
-
int r;
-
if (inst->Dst[0].Register.WriteMask & (1 << 0))
{
/* dst.x, <- 1.0 */
@@ -930,6 +928,85 @@ static int tgsi_tex(struct r600_shader_ctx *ctx)
return r600_bc_add_tex(ctx->bc, &tex);
}
+static int tgsi_lrp(struct r600_shader_ctx *ctx)
+{
+ struct tgsi_full_instruction *inst = &ctx->parse.FullToken.FullInstruction;
+ struct r600_bc_alu alu;
+ unsigned i;
+ int r;
+
+ /* 1 - src0 */
+ for (i = 0; i < 4; i++) {
+ memset(&alu, 0, sizeof(struct r600_bc_alu));
+ alu.inst = V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_ADD;
+ alu.src[0].sel = 249;
+ alu.src[0].chan = 0;
+ r = tgsi_src(ctx, &inst->Src[0], i, &alu.src[1]);
+ if (r)
+ return r;
+ alu.src[1].neg = 1;
+ alu.dst.sel = ctx->temp_reg;
+ alu.dst.chan = i;
+ if (i == 3) {
+ alu.last = 1;
+ }
+ alu.dst.write = 1;
+ r = r600_bc_add_alu(ctx->bc, &alu);
+ if (r)
+ return r;
+ }
+ r = r600_bc_add_literal(ctx->bc, ctx->value);
+ if (r)
+ return r;
+
+ /* (1 - src0) * src2 */
+ for (i = 0; i < 4; i++) {
+ memset(&alu, 0, sizeof(struct r600_bc_alu));
+ alu.inst = V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_MUL;
+ alu.src[0].sel = ctx->temp_reg;
+ alu.src[0].chan = i;
+ r = tgsi_src(ctx, &inst->Src[2], i, &alu.src[1]);
+ if (r)
+ return r;
+ alu.dst.sel = ctx->temp_reg;
+ alu.dst.chan = i;
+ if (i == 3) {
+ alu.last = 1;
+ }
+ alu.dst.write = 1;
+ r = r600_bc_add_alu(ctx->bc, &alu);
+ if (r)
+ return r;
+ }
+ r = r600_bc_add_literal(ctx->bc, ctx->value);
+ if (r)
+ return r;
+
+ /* src0 * src1 + (1 - src0) * src2 */
+ for (i = 0; i < 4; i++) {
+ memset(&alu, 0, sizeof(struct r600_bc_alu));
+ alu.inst = V_SQ_ALU_WORD1_OP3_SQ_OP3_INST_MULADD;
+ alu.is_op3 = 1;
+ r = tgsi_src(ctx, &inst->Src[0], i, &alu.src[0]);
+ if (r)
+ return r;
+ r = tgsi_src(ctx, &inst->Src[1], i, &alu.src[1]);
+ if (r)
+ return r;
+ alu.src[2].sel = ctx->temp_reg;
+ alu.src[2].chan = i;
+ alu.dst.sel = ctx->temp_reg;
+ alu.dst.chan = i;
+ if (i == 3) {
+ alu.last = 1;
+ }
+ r = r600_bc_add_alu(ctx->bc, &alu);
+ if (r)
+ return r;
+ }
+ return tgsi_helper_copy(ctx, inst);
+}
+
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},
@@ -949,7 +1026,7 @@ static struct r600_shader_tgsi_instruction r600_shader_tgsi_instruction[] = {
{TGSI_OPCODE_SGE, 0, V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
{TGSI_OPCODE_MAD, 1, V_SQ_ALU_WORD1_OP3_SQ_OP3_INST_MULADD, tgsi_op3},
{TGSI_OPCODE_SUB, 0, V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_ADD, tgsi_op2},
- {TGSI_OPCODE_LRP, 0, V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
+ {TGSI_OPCODE_LRP, 0, V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_lrp},
{TGSI_OPCODE_CND, 0, V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
/* gap */
{20, 0, V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},