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nv40: fp arbitrary swizzling/negation

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Pretty bad implementation, goal was to get glBitmap working.
This commit is contained in:
Ben Skeggs 2007-11-25 11:25:32 +11:00
parent 558f3abb49
commit 8b1c8f5e75
2 changed files with 81 additions and 0 deletions
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79
src/mesa/pipe/nv40/nv40_fragprog.c
View file

@ -4,6 +4,7 @@
#include "pipe/tgsi/exec/tgsi_token.h"
#include "pipe/tgsi/exec/tgsi_parse.h"
#include "pipe/tgsi/exec/tgsi_util.h"
#include "nv40_context.h"
#include "nv40_dma.h"
@ -262,6 +263,66 @@ tgsi_mask(uint tgsi)
return mask;
}
static boolean
src_native_swz(struct nv40_fpc *fpc, const struct tgsi_full_src_register *fsrc,
struct nv40_sreg *src)
{
const struct nv40_sreg none = nv40_sr(NV40SR_NONE, 0);
struct nv40_sreg tgsi = tgsi_src(fpc, fsrc);
uint mask = 0, zero_mask = 0, one_mask = 0, neg_mask = 0;
uint neg[4] = { fsrc->SrcRegisterExtSwz.NegateX,
fsrc->SrcRegisterExtSwz.NegateY,
fsrc->SrcRegisterExtSwz.NegateZ,
fsrc->SrcRegisterExtSwz.NegateW };
uint c;
for (c = 0; c < 4; c++) {
switch (tgsi_util_get_full_src_register_extswizzle(fsrc, c)) {
case TGSI_EXTSWIZZLE_X:
case TGSI_EXTSWIZZLE_Y:
case TGSI_EXTSWIZZLE_Z:
case TGSI_EXTSWIZZLE_W:
mask |= (1 << c);
break;
case TGSI_EXTSWIZZLE_ZERO:
zero_mask |= (1 << c);
tgsi.swz[c] = SWZ_X;
break;
case TGSI_EXTSWIZZLE_ONE:
one_mask |= (1 << c);
tgsi.swz[c] = SWZ_X;
break;
default:
assert(0);
}
if (!tgsi.negate && neg[c])
neg_mask |= (1 << c);
}
if (mask == MASK_ALL)
return TRUE;
*src = temp(fpc);
if (mask)
arith(fpc, 0, MOV, *src, mask, tgsi, none, none);
if (zero_mask)
arith(fpc, 0, SFL, *src, zero_mask, *src, none, none);
if (one_mask)
arith(fpc, 0, STR, *src, one_mask, *src, none, none);
if (neg_mask) {
struct nv40_sreg one = temp(fpc);
arith(fpc, 0, STR, one, neg_mask, one, none, none);
arith(fpc, 0, MUL, *src, neg_mask, *src, neg(one), none);
}
return FALSE;
}
static boolean
nv40_fragprog_parse_instruction(struct nv40_fpc *fpc,
const struct tgsi_full_instruction *finst)
@ -289,6 +350,18 @@ nv40_fragprog_parse_instruction(struct nv40_fpc *fpc,
const struct tgsi_full_src_register *fsrc;
fsrc = &finst->FullSrcRegisters[i];
switch (fsrc->SrcRegister.File) {
case TGSI_FILE_INPUT:
case TGSI_FILE_CONSTANT:
case TGSI_FILE_TEMPORARY:
if (!src_native_swz(fpc, fsrc, &src[i]))
continue;
break;
default:
break;
}
switch (fsrc->SrcRegister.File) {
case TGSI_FILE_INPUT:
if (ai == -1 || ai == fsrc->SrcRegister.Index) {
@ -625,6 +698,12 @@ nv40_fragprog_bind(struct nv40_context *nv40, struct nv40_fragment_program *fp)
if (!fp->buffer)
fp->buffer = ws->buffer_create(ws, 0x100);
#if 0
int i;
for (i = 0; i < fp->insn_len; i++)
NOUVEAU_ERR("%d 0x%08x\n", i, fp->insn[i]);
#endif
nv40->pipe.winsys->buffer_data(nv40->pipe.winsys, fp->buffer,
fp->insn_len * sizeof(uint32_t),
fp->insn,

2
src/mesa/pipe/nv40/nv40_shader.h
View file

@ -353,6 +353,8 @@
# define NV40_FP_OP_OPCODE_RCP 0x1A
# define NV40_FP_OP_OPCODE_EX2 0x1C
# define NV40_FP_OP_OPCODE_LG2 0x1D
# define NV40_FP_OP_OPCODE_STR 0x20
# define NV40_FP_OP_OPCODE_SFL 0x21
# define NV40_FP_OP_OPCODE_COS 0x22
# define NV40_FP_OP_OPCODE_SIN 0x23
# define NV40_FP_OP_OPCODE_PK2H 0x24