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authorChristoph Bumiller <e0425955@student.tuwien.ac.at>2009-10-14 21:27:35 +0200
committerChristoph Bumiller <e0425955@student.tuwien.ac.at>2009-10-19 18:25:09 +0200
commit1635e8d6f4b96e691746e8c8c5a273089bae6843 (patch)
tree2d836de3c1c7d1b1da25035d2f4e09aa9bcc3bb2 /src
parentc0e80cf0e97cec526bb2ff0f94d9142e33374c20 (diff)
nv50: add support for DDX and DDY opcodes
Diffstat (limited to 'src')
-rw-r--r--src/gallium/drivers/nv50/nv50_program.c70
1 files changed, 56 insertions, 14 deletions
diff --git a/src/gallium/drivers/nv50/nv50_program.c b/src/gallium/drivers/nv50/nv50_program.c
index 576d075318..89e0ac8db9 100644
--- a/src/gallium/drivers/nv50/nv50_program.c
+++ b/src/gallium/drivers/nv50/nv50_program.c
@@ -837,7 +837,7 @@ emit_precossin(struct nv50_pc *pc, struct nv50_reg *dst, struct nv50_reg *src)
#define CVTOP_SAT 0x08
#define CVTOP_ABS 0x10
-/* 0x04 == 32 bit */
+/* 0x04 == 32 bit dst */
/* 0x40 == dst is float */
/* 0x80 == src is float */
#define CVT_F32_F32 0xc4
@@ -858,7 +858,7 @@ emit_cvt(struct nv50_pc *pc, struct nv50_reg *dst, struct nv50_reg *src,
set_long(pc, e);
e->inst[0] |= 0xa0000000;
- e->inst[1] |= 0x00004000;
+ e->inst[1] |= 0x00004000; /* 32 bit src */
e->inst[1] |= (cvn << 16);
e->inst[1] |= (fmt << 24);
set_src_0(pc, src, e);
@@ -1037,20 +1037,10 @@ emit_lit(struct nv50_pc *pc, struct nv50_reg **dst, unsigned mask,
FREE(one);
}
-static void
+static INLINE void
emit_neg(struct nv50_pc *pc, struct nv50_reg *dst, struct nv50_reg *src)
{
- struct nv50_program_exec *e = exec(pc);
-
- set_long(pc, e);
- e->inst[0] |= 0xa0000000; /* delta */
- e->inst[1] |= (7 << 29); /* delta */
- e->inst[1] |= 0x04000000; /* negate arg0? probably not */
- e->inst[1] |= (1 << 14); /* src .f32 */
- set_dst(pc, dst, e);
- set_src_0(pc, src, e);
-
- emit(pc, e);
+ emit_cvt(pc, dst, src, -1, CVTOP_RN, CVT_F32_F32 | CVT_NEG);
}
static void
@@ -1219,6 +1209,43 @@ emit_nop(struct nv50_pc *pc)
}
static void
+emit_ddx(struct nv50_pc *pc, struct nv50_reg *dst, struct nv50_reg *src)
+{
+ struct nv50_program_exec *e = exec(pc);
+
+ assert(src->type == P_TEMP);
+
+ e->inst[0] = 0xc0140000;
+ e->inst[1] = 0x89800000;
+ set_long(pc, e);
+ set_dst(pc, dst, e);
+ set_src_0(pc, src, e);
+ set_src_2(pc, src, e);
+
+ emit(pc, e);
+}
+
+static void
+emit_ddy(struct nv50_pc *pc, struct nv50_reg *dst, struct nv50_reg *src)
+{
+ struct nv50_program_exec *e = exec(pc);
+
+ assert(src->type == P_TEMP);
+
+ if (!src->neg) /* ! double negation */
+ emit_neg(pc, src, src);
+
+ e->inst[0] = 0xc0150000;
+ e->inst[1] = 0x8a400000;
+ set_long(pc, e);
+ set_dst(pc, dst, e);
+ set_src_0(pc, src, e);
+ set_src_2(pc, src, e);
+
+ emit(pc, e);
+}
+
+static void
convert_to_long(struct nv50_pc *pc, struct nv50_program_exec *e)
{
unsigned q = 0, m = ~0;
@@ -1270,6 +1297,7 @@ static boolean
negate_supported(const struct tgsi_full_instruction *insn, int i)
{
switch (insn->Instruction.Opcode) {
+ case TGSI_OPCODE_DDY:
case TGSI_OPCODE_DP3:
case TGSI_OPCODE_DP4:
case TGSI_OPCODE_MUL:
@@ -1660,6 +1688,20 @@ nv50_program_tx_insn(struct nv50_pc *pc,
emit_precossin(pc, temp, src[0][0]);
emit_flop(pc, 5, brdc, temp);
break;
+ case TGSI_OPCODE_DDX:
+ for (c = 0; c < 4; c++) {
+ if (!(mask & (1 << c)))
+ continue;
+ emit_ddx(pc, dst[c], src[0][c]);
+ }
+ break;
+ case TGSI_OPCODE_DDY:
+ for (c = 0; c < 4; c++) {
+ if (!(mask & (1 << c)))
+ continue;
+ emit_ddy(pc, dst[c], src[0][c]);
+ }
+ break;
case TGSI_OPCODE_DP3:
emit_mul(pc, temp, src[0][0], src[1][0]);
emit_mad(pc, temp, src[0][1], src[1][1], temp);