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#include "util/u_format.h"
#include "nvfx_context.h"
#include "nvfx_tex.h"
void
nv40_sampler_state_init(struct pipe_context *pipe,
struct nvfx_sampler_state *ps,
const struct pipe_sampler_state *cso)
{
if (cso->max_anisotropy >= 2) {
/* no idea, binary driver sets it, works without it.. meh.. */
ps->wrap |= (1 << 5);
if (cso->max_anisotropy >= 16) {
ps->en |= NV40TCL_TEX_ENABLE_ANISO_16X;
} else
if (cso->max_anisotropy >= 12) {
ps->en |= NV40TCL_TEX_ENABLE_ANISO_12X;
} else
if (cso->max_anisotropy >= 10) {
ps->en |= NV40TCL_TEX_ENABLE_ANISO_10X;
} else
if (cso->max_anisotropy >= 8) {
ps->en |= NV40TCL_TEX_ENABLE_ANISO_8X;
} else
if (cso->max_anisotropy >= 6) {
ps->en |= NV40TCL_TEX_ENABLE_ANISO_6X;
} else
if (cso->max_anisotropy >= 4) {
ps->en |= NV40TCL_TEX_ENABLE_ANISO_4X;
} else {
ps->en |= NV40TCL_TEX_ENABLE_ANISO_2X;
}
}
{
float limit;
limit = CLAMP(cso->lod_bias, -16.0, 15.0);
ps->filt |= (int)(cso->lod_bias * 256.0) & 0x1fff;
limit = CLAMP(cso->max_lod, 0.0, 15.0);
ps->en |= (int)(limit * 256.0) << 7;
limit = CLAMP(cso->min_lod, 0.0, 15.0);
ps->en |= (int)(limit * 256.0) << 19;
}
}
#define _(m,tf,ts0x,ts0y,ts0z,ts0w,ts1x,ts1y,ts1z,ts1w,sx,sy,sz,sw) \
{ \
TRUE, \
PIPE_FORMAT_##m, \
NV40TCL_TEX_FORMAT_FORMAT_##tf, \
(NV34TCL_TX_SWIZZLE_S0_X_##ts0x | NV34TCL_TX_SWIZZLE_S0_Y_##ts0y | \
NV34TCL_TX_SWIZZLE_S0_Z_##ts0z | NV34TCL_TX_SWIZZLE_S0_W_##ts0w | \
NV34TCL_TX_SWIZZLE_S1_X_##ts1x | NV34TCL_TX_SWIZZLE_S1_Y_##ts1y | \
NV34TCL_TX_SWIZZLE_S1_Z_##ts1z | NV34TCL_TX_SWIZZLE_S1_W_##ts1w), \
((NV34TCL_TX_FILTER_SIGNED_RED*sx) | (NV34TCL_TX_FILTER_SIGNED_GREEN*sy) | \
(NV34TCL_TX_FILTER_SIGNED_BLUE*sz) | (NV34TCL_TX_FILTER_SIGNED_ALPHA*sw)) \
}
struct nv40_texture_format {
boolean defined;
uint pipe;
int format;
int swizzle;
int sign;
};
static struct nv40_texture_format
nv40_texture_formats[] = {
_(B8G8R8X8_UNORM, A8R8G8B8, S1, S1, S1, ONE, X, Y, Z, W, 0, 0, 0, 0),
_(B8G8R8A8_UNORM, A8R8G8B8, S1, S1, S1, S1, X, Y, Z, W, 0, 0, 0, 0),
_(B5G5R5A1_UNORM, A1R5G5B5, S1, S1, S1, S1, X, Y, Z, W, 0, 0, 0, 0),
_(B4G4R4A4_UNORM, A4R4G4B4, S1, S1, S1, S1, X, Y, Z, W, 0, 0, 0, 0),
_(B5G6R5_UNORM , R5G6B5 , S1, S1, S1, ONE, X, Y, Z, W, 0, 0, 0, 0),
_(L8_UNORM , L8 , S1, S1, S1, ONE, X, X, X, X, 0, 0, 0, 0),
_(A8_UNORM , L8 , ZERO, ZERO, ZERO, S1, X, X, X, X, 0, 0, 0, 0),
_(R16_SNORM , A16 , ZERO, ZERO, S1, ONE, X, X, X, Y, 1, 1, 1, 1),
_(I8_UNORM , L8 , S1, S1, S1, S1, X, X, X, X, 0, 0, 0, 0),
_(L8A8_UNORM , A8L8 , S1, S1, S1, S1, X, X, X, Y, 0, 0, 0, 0),
_(Z16_UNORM , Z16 , S1, S1, S1, ONE, X, X, X, X, 0, 0, 0, 0),
_(S8_USCALED_Z24_UNORM , Z24 , S1, S1, S1, ONE, X, X, X, X, 0, 0, 0, 0),
_(DXT1_RGB , DXT1 , S1, S1, S1, ONE, X, Y, Z, W, 0, 0, 0, 0),
_(DXT1_RGBA , DXT1 , S1, S1, S1, S1, X, Y, Z, W, 0, 0, 0, 0),
_(DXT3_RGBA , DXT3 , S1, S1, S1, S1, X, Y, Z, W, 0, 0, 0, 0),
_(DXT5_RGBA , DXT5 , S1, S1, S1, S1, X, Y, Z, W, 0, 0, 0, 0),
{},
};
static struct nv40_texture_format *
nv40_fragtex_format(uint pipe_format)
{
struct nv40_texture_format *tf = nv40_texture_formats;
while (tf->defined) {
if (tf->pipe == pipe_format)
return tf;
tf++;
}
NOUVEAU_ERR("unknown texture format %s\n", util_format_name(pipe_format));
return NULL;
}
struct nouveau_stateobj *
nv40_fragtex_build(struct nvfx_context *nvfx, int unit)
{
struct nvfx_sampler_state *ps = nvfx->tex_sampler[unit];
struct nvfx_miptree *nv40mt = (struct nvfx_miptree *)nvfx->fragment_sampler_views[unit]->texture;
struct nouveau_bo *bo = nouveau_bo(nv40mt->buffer);
struct pipe_texture *pt = &nv40mt->base;
struct nv40_texture_format *tf;
struct nouveau_stateobj *so;
uint32_t txf, txs, txp;
unsigned tex_flags = NOUVEAU_BO_VRAM | NOUVEAU_BO_GART | NOUVEAU_BO_RD;
tf = nv40_fragtex_format(pt->format);
if (!tf)
assert(0);
txf = ps->fmt;
txf |= tf->format | 0x8000;
txf |= ((pt->last_level + 1) << NV40TCL_TEX_FORMAT_MIPMAP_COUNT_SHIFT);
if (1) /* XXX */
txf |= NV34TCL_TX_FORMAT_NO_BORDER;
switch (pt->target) {
case PIPE_TEXTURE_CUBE:
txf |= NV34TCL_TX_FORMAT_CUBIC;
/* fall-through */
case PIPE_TEXTURE_2D:
txf |= NV34TCL_TX_FORMAT_DIMS_2D;
break;
case PIPE_TEXTURE_3D:
txf |= NV34TCL_TX_FORMAT_DIMS_3D;
break;
case PIPE_TEXTURE_1D:
txf |= NV34TCL_TX_FORMAT_DIMS_1D;
break;
default:
NOUVEAU_ERR("Unknown target %d\n", pt->target);
return NULL;
}
if (!(pt->tex_usage & NOUVEAU_TEXTURE_USAGE_LINEAR)) {
txp = 0;
} else {
txp = nv40mt->level[0].pitch;
txf |= NV40TCL_TEX_FORMAT_LINEAR;
}
txs = tf->swizzle;
so = so_new(2, 9, 2);
so_method(so, nvfx->screen->eng3d, NV34TCL_TX_OFFSET(unit), 8);
so_reloc (so, bo, 0, tex_flags | NOUVEAU_BO_LOW, 0, 0);
so_reloc (so, bo, txf, tex_flags | NOUVEAU_BO_OR,
NV34TCL_TX_FORMAT_DMA0, NV34TCL_TX_FORMAT_DMA1);
so_data (so, ps->wrap);
so_data (so, NV40TCL_TEX_ENABLE_ENABLE | ps->en);
so_data (so, txs);
so_data (so, ps->filt | tf->sign | 0x2000 /*voodoo*/);
so_data (so, (pt->width0 << NV34TCL_TX_NPOT_SIZE_W_SHIFT) |
pt->height0);
so_data (so, ps->bcol);
so_method(so, nvfx->screen->eng3d, NV40TCL_TEX_SIZE1(unit), 1);
so_data (so, (pt->depth0 << NV40TCL_TEX_SIZE1_DEPTH_SHIFT) | txp);
return so;
}
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