From: Dave Airlie <airlied@redhat.com>
Date: Mon, 30 Aug 2010 06:09:39 +0000 (+1000)
Subject: r600g: add SCS support.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=92f5c7a597aaf098f4e6b4793e4b89ae539e328a;p=mesa.git

r600g: add SCS support.
---

diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c
index 9a4e39e2cc1..15dc406479c 100644
--- a/src/gallium/drivers/r600/r600_shader.c
+++ b/src/gallium/drivers/r600/r600_shader.c
@@ -743,14 +743,14 @@ static int tgsi_op2_swap(struct r600_shader_ctx *ctx)
  * r700 - normalize by dividing by 2PI
  * see fdo bug 27901
  */
-static int tgsi_trig(struct r600_shader_ctx *ctx)
+static int tgsi_setup_trig(struct r600_shader_ctx *ctx,
+			   struct r600_bc_alu_src r600_src[3])
 {
 	struct tgsi_full_instruction *inst = &ctx->parse.FullToken.FullInstruction;
-	struct r600_bc_alu_src r600_src[3];
-	struct r600_bc_alu alu;
-	int i, r;
+	int r;
 	uint32_t lit_vals[4];
-
+	struct r600_bc_alu alu;
+	
 	memset(lit_vals, 0, 4*4);
 	r = tgsi_split_constant(ctx, r600_src);
 	if (r)
@@ -823,6 +823,23 @@ static int tgsi_trig(struct r600_shader_ctx *ctx)
 	if (r)
 		return r;
 	r = r600_bc_add_literal(ctx->bc, lit_vals);
+	if (r)
+		return r;
+	return 0;
+}
+
+static int tgsi_trig(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 i, r;
+
+	r = tgsi_split_constant(ctx, r600_src);
+	if (r)
+		return r;
+
+	r = tgsi_setup_trig(ctx, r600_src);
 	if (r)
 		return r;
 
@@ -858,6 +875,52 @@ static int tgsi_trig(struct r600_shader_ctx *ctx)
 	return 0;
 }
 
+static int tgsi_scs(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 r;
+
+	r = tgsi_split_constant(ctx, r600_src);
+	if (r)
+		return r;
+
+	r = tgsi_setup_trig(ctx, r600_src);
+	if (r)
+		return r;
+
+
+	/* dst.x = COS */
+	memset(&alu, 0, sizeof(struct r600_bc_alu));
+	alu.inst = V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_COS;
+	r = tgsi_dst(ctx, &inst->Dst[0], 0, &alu.dst);
+	if (r)
+		return r;
+
+	alu.src[0].sel = ctx->temp_reg;
+	alu.src[0].chan = 0;
+	alu.last = 1;
+	r = r600_bc_add_alu(ctx->bc, &alu);
+	if (r)
+		return r;
+
+	/* dst.y = SIN */
+	memset(&alu, 0, sizeof(struct r600_bc_alu));
+	alu.inst = V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_SIN;
+	r = tgsi_dst(ctx, &inst->Dst[0], 1, &alu.dst);
+	if (r)
+		return r;
+
+	alu.src[0].sel = ctx->temp_reg;
+	alu.src[0].chan = 0;
+	alu.last = 1;
+	r = r600_bc_add_alu(ctx->bc, &alu);
+	if (r)
+		return r;
+	return 0;
+}
+
 static int tgsi_kill(struct r600_shader_ctx *ctx)
 {
 	struct tgsi_full_instruction *inst = &ctx->parse.FullToken.FullInstruction;
@@ -2146,7 +2209,7 @@ static struct r600_shader_tgsi_instruction r600_shader_tgsi_instruction[] = {
 	{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_cmp},
-	{TGSI_OPCODE_SCS,	0, V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},
+	{TGSI_OPCODE_SCS,	0, V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_scs},
 	{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},
 	{TGSI_OPCODE_DIV,	0, V_SQ_ALU_WORD1_OP2_SQ_OP2_INST_NOP, tgsi_unsupported},