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#include "pipe/p_state.h"
#include "pipe/p_defines.h"
#include "util/u_inlines.h"
#include "draw/draw_context.h"
#include "tgsi/tgsi_parse.h"
#include "nv40_context.h"
#include "nvfx_state.h"
static INLINE unsigned
wrap_mode(unsigned wrap) {
unsigned ret;
switch (wrap) {
case PIPE_TEX_WRAP_REPEAT:
ret = NV34TCL_TX_WRAP_S_REPEAT;
break;
case PIPE_TEX_WRAP_MIRROR_REPEAT:
ret = NV34TCL_TX_WRAP_S_MIRRORED_REPEAT;
break;
case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
ret = NV34TCL_TX_WRAP_S_CLAMP_TO_EDGE;
break;
case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
ret = NV34TCL_TX_WRAP_S_CLAMP_TO_BORDER;
break;
case PIPE_TEX_WRAP_CLAMP:
ret = NV34TCL_TX_WRAP_S_CLAMP;
break;
case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE:
ret = NV40TCL_TEX_WRAP_S_MIRROR_CLAMP_TO_EDGE;
break;
case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER:
ret = NV40TCL_TEX_WRAP_S_MIRROR_CLAMP_TO_BORDER;
break;
case PIPE_TEX_WRAP_MIRROR_CLAMP:
ret = NV40TCL_TEX_WRAP_S_MIRROR_CLAMP;
break;
default:
NOUVEAU_ERR("unknown wrap mode: %d\n", wrap);
ret = NV34TCL_TX_WRAP_S_REPEAT;
break;
}
return ret >> NV34TCL_TX_WRAP_S_SHIFT;
}
void *
nv40_sampler_state_create(struct pipe_context *pipe,
const struct pipe_sampler_state *cso)
{
struct nvfx_sampler_state *ps;
uint32_t filter = 0;
ps = MALLOC(sizeof(struct nvfx_sampler_state));
ps->fmt = 0;
if (!cso->normalized_coords)
ps->fmt |= NV40TCL_TEX_FORMAT_RECT;
ps->wrap = ((wrap_mode(cso->wrap_s) << NV34TCL_TX_WRAP_S_SHIFT) |
(wrap_mode(cso->wrap_t) << NV34TCL_TX_WRAP_T_SHIFT) |
(wrap_mode(cso->wrap_r) << NV34TCL_TX_WRAP_R_SHIFT));
ps->en = 0;
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;
}
}
switch (cso->mag_img_filter) {
case PIPE_TEX_FILTER_LINEAR:
filter |= NV34TCL_TX_FILTER_MAGNIFY_LINEAR;
break;
case PIPE_TEX_FILTER_NEAREST:
default:
filter |= NV34TCL_TX_FILTER_MAGNIFY_NEAREST;
break;
}
switch (cso->min_img_filter) {
case PIPE_TEX_FILTER_LINEAR:
switch (cso->min_mip_filter) {
case PIPE_TEX_MIPFILTER_NEAREST:
filter |= NV34TCL_TX_FILTER_MINIFY_LINEAR_MIPMAP_NEAREST;
break;
case PIPE_TEX_MIPFILTER_LINEAR:
filter |= NV34TCL_TX_FILTER_MINIFY_LINEAR_MIPMAP_LINEAR;
break;
case PIPE_TEX_MIPFILTER_NONE:
default:
filter |= NV34TCL_TX_FILTER_MINIFY_LINEAR;
break;
}
break;
case PIPE_TEX_FILTER_NEAREST:
default:
switch (cso->min_mip_filter) {
case PIPE_TEX_MIPFILTER_NEAREST:
filter |= NV34TCL_TX_FILTER_MINIFY_NEAREST_MIPMAP_NEAREST;
break;
case PIPE_TEX_MIPFILTER_LINEAR:
filter |= NV34TCL_TX_FILTER_MINIFY_NEAREST_MIPMAP_LINEAR;
break;
case PIPE_TEX_MIPFILTER_NONE:
default:
filter |= NV34TCL_TX_FILTER_MINIFY_NEAREST;
break;
}
break;
}
ps->filt = filter;
{
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;
}
if (cso->compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE) {
switch (cso->compare_func) {
case PIPE_FUNC_NEVER:
ps->wrap |= NV34TCL_TX_WRAP_RCOMP_NEVER;
break;
case PIPE_FUNC_GREATER:
ps->wrap |= NV34TCL_TX_WRAP_RCOMP_GREATER;
break;
case PIPE_FUNC_EQUAL:
ps->wrap |= NV34TCL_TX_WRAP_RCOMP_EQUAL;
break;
case PIPE_FUNC_GEQUAL:
ps->wrap |= NV34TCL_TX_WRAP_RCOMP_GEQUAL;
break;
case PIPE_FUNC_LESS:
ps->wrap |= NV34TCL_TX_WRAP_RCOMP_LESS;
break;
case PIPE_FUNC_NOTEQUAL:
ps->wrap |= NV34TCL_TX_WRAP_RCOMP_NOTEQUAL;
break;
case PIPE_FUNC_LEQUAL:
ps->wrap |= NV34TCL_TX_WRAP_RCOMP_LEQUAL;
break;
case PIPE_FUNC_ALWAYS:
ps->wrap |= NV34TCL_TX_WRAP_RCOMP_ALWAYS;
break;
default:
break;
}
}
ps->bcol = ((float_to_ubyte(cso->border_color[3]) << 24) |
(float_to_ubyte(cso->border_color[0]) << 16) |
(float_to_ubyte(cso->border_color[1]) << 8) |
(float_to_ubyte(cso->border_color[2]) << 0));
return (void *)ps;
}
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