/*
* Copyright 2012 Red Hat Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* Authors: Ben Skeggs
*
*/
#include "util/u_inlines.h"
#include "util/u_format.h"
#include "nv_object.xml.h"
#include "nv30/nv30-40_3d.xml.h"
#include "nv30/nv30_context.h"
#include "nv30/nv30_format.h"
#define NV30_3D_TEX_WRAP_S_MIRROR_REPEAT NV30_3D_TEX_WRAP_S_MIRRORED_REPEAT
#define NV30_WRAP(n) \
case PIPE_TEX_WRAP_##n: ret = NV30_3D_TEX_WRAP_S_##n; break
#define NV40_WRAP(n) \
case PIPE_TEX_WRAP_##n: ret = NV40_3D_TEX_WRAP_S_##n; break
static inline unsigned
wrap_mode(unsigned pipe)
{
unsigned ret = NV30_3D_TEX_WRAP_S_REPEAT;
switch (pipe) {
NV30_WRAP(REPEAT);
NV30_WRAP(MIRROR_REPEAT);
NV30_WRAP(CLAMP_TO_EDGE);
NV30_WRAP(CLAMP_TO_BORDER);
NV30_WRAP(CLAMP);
NV40_WRAP(MIRROR_CLAMP_TO_EDGE);
NV40_WRAP(MIRROR_CLAMP_TO_BORDER);
NV40_WRAP(MIRROR_CLAMP);
default:
break;
}
return ret >> NV30_3D_TEX_WRAP_S__SHIFT;
}
static inline unsigned
filter_mode(const struct pipe_sampler_state *cso)
{
unsigned filter;
switch (cso->mag_img_filter) {
case PIPE_TEX_FILTER_LINEAR:
filter = NV30_3D_TEX_FILTER_MAG_LINEAR;
break;
default:
filter = NV30_3D_TEX_FILTER_MAG_NEAREST;
break;
}
switch (cso->min_img_filter) {
case PIPE_TEX_FILTER_LINEAR:
switch (cso->min_mip_filter) {
case PIPE_TEX_MIPFILTER_NEAREST:
filter |= NV30_3D_TEX_FILTER_MIN_LINEAR_MIPMAP_NEAREST;
break;
case PIPE_TEX_MIPFILTER_LINEAR:
filter |= NV30_3D_TEX_FILTER_MIN_LINEAR_MIPMAP_LINEAR;
break;
default:
filter |= NV30_3D_TEX_FILTER_MIN_LINEAR;
break;
}
break;
default:
switch (cso->min_mip_filter) {
case PIPE_TEX_MIPFILTER_NEAREST:
filter |= NV30_3D_TEX_FILTER_MIN_NEAREST_MIPMAP_NEAREST;
break;
case PIPE_TEX_MIPFILTER_LINEAR:
filter |= NV30_3D_TEX_FILTER_MIN_NEAREST_MIPMAP_LINEAR;
break;
default:
filter |= NV30_3D_TEX_FILTER_MIN_NEAREST;
break;
}
break;
}
return filter;
}
static inline unsigned
compare_mode(const struct pipe_sampler_state *cso)
{
if (cso->compare_mode != PIPE_TEX_COMPARE_R_TO_TEXTURE)
return 0;
switch (cso->compare_func) {
case PIPE_FUNC_NEVER : return NV30_3D_TEX_WRAP_RCOMP_NEVER;
case PIPE_FUNC_GREATER : return NV30_3D_TEX_WRAP_RCOMP_GREATER;
case PIPE_FUNC_EQUAL : return NV30_3D_TEX_WRAP_RCOMP_EQUAL;
case PIPE_FUNC_GEQUAL : return NV30_3D_TEX_WRAP_RCOMP_GEQUAL;
case PIPE_FUNC_LESS : return NV30_3D_TEX_WRAP_RCOMP_LESS;
case PIPE_FUNC_NOTEQUAL: return NV30_3D_TEX_WRAP_RCOMP_NOTEQUAL;
case PIPE_FUNC_LEQUAL : return NV30_3D_TEX_WRAP_RCOMP_LEQUAL;
case PIPE_FUNC_ALWAYS : return NV30_3D_TEX_WRAP_RCOMP_ALWAYS;
default:
return 0;
}
}
static void *
nv30_sampler_state_create(struct pipe_context *pipe,
const struct pipe_sampler_state *cso)
{
struct nouveau_object *eng3d = nv30_context(pipe)->screen->eng3d;
struct nv30_sampler_state *so;
const float max_lod = 15.0 + (255.0 / 256.0);
so = MALLOC_STRUCT(nv30_sampler_state);
if (!so)
return NULL;
so->pipe = *cso;
so->fmt = 0;
so->wrap = (wrap_mode(cso->wrap_s) << NV30_3D_TEX_WRAP_S__SHIFT) |
(wrap_mode(cso->wrap_t) << NV30_3D_TEX_WRAP_T__SHIFT) |
(wrap_mode(cso->wrap_r) << NV30_3D_TEX_WRAP_R__SHIFT);
so->en = 0;
so->wrap |= compare_mode(cso);
so->filt = filter_mode(cso) | 0x00002000;
so->bcol = (float_to_ubyte(cso->border_color.f[3]) << 24) |
(float_to_ubyte(cso->border_color.f[0]) << 16) |
(float_to_ubyte(cso->border_color.f[1]) << 8) |
(float_to_ubyte(cso->border_color.f[2]) << 0);
if (eng3d->oclass >= NV40_3D_CLASS) {
unsigned aniso = cso->max_anisotropy;
if (!cso->normalized_coords)
so->fmt |= NV40_3D_TEX_FORMAT_RECT;
if (aniso > 1) {
if (aniso >= 16) so->en |= NV40_3D_TEX_ENABLE_ANISO_16X;
else if (aniso >= 12) so->en |= NV40_3D_TEX_ENABLE_ANISO_12X;
else if (aniso >= 10) so->en |= NV40_3D_TEX_ENABLE_ANISO_10X;
else if (aniso >= 8) so->en |= NV40_3D_TEX_ENABLE_ANISO_8X;
else if (aniso >= 6) so->en |= NV40_3D_TEX_ENABLE_ANISO_6X;
else if (aniso >= 4) so->en |= NV40_3D_TEX_ENABLE_ANISO_4X;
else so->en |= NV40_3D_TEX_ENABLE_ANISO_2X;
so->wrap |= nv30_context(pipe)->config.aniso;
}
} else {
so->en |= NV30_3D_TEX_ENABLE_ENABLE;
if (cso->max_anisotropy >= 8) so->en |= NV30_3D_TEX_ENABLE_ANISO_8X;
else if (cso->max_anisotropy >= 4) so->en |= NV30_3D_TEX_ENABLE_ANISO_4X;
else if (cso->max_anisotropy >= 2) so->en |= NV30_3D_TEX_ENABLE_ANISO_2X;
}
so->filt |= (int)(cso->lod_bias * 256.0) & 0x1fff;
so->max_lod = (int)(CLAMP(cso->max_lod, 0.0, max_lod) * 256.0);
so->min_lod = (int)(CLAMP(cso->min_lod, 0.0, max_lod) * 256.0);
return so;
}
static void
nv30_sampler_state_delete(struct pipe_context *pipe, void *hwcso)
{
FREE(hwcso);
}
static void
nv30_bind_sampler_states(struct pipe_context *pipe,
enum pipe_shader_type shader, unsigned start_slot,
unsigned num_samplers, void **samplers)
{
switch (shader) {
case PIPE_SHADER_VERTEX:
nv40_verttex_sampler_states_bind(pipe, num_samplers, samplers);
break;
case PIPE_SHADER_FRAGMENT:
nv30_fragtex_sampler_states_bind(pipe, num_samplers, samplers);
break;
default:
assert(!"unexpected shader type");
break;
}
}
static inline uint32_t
swizzle(const struct nv30_texfmt *fmt, unsigned cmp, unsigned swz)
{
uint32_t data = fmt->swz[swz].src << 8;
if (swz <= PIPE_SWIZZLE_W)
data |= fmt->swz[swz].cmp;
else
data |= fmt->swz[cmp].cmp;
return data;
}
static struct pipe_sampler_view *
nv30_sampler_view_create(struct pipe_context *pipe, struct pipe_resource *pt,
const struct pipe_sampler_view *tmpl)
{
const struct nv30_texfmt *fmt = nv30_texfmt(pipe->screen, tmpl->format);
struct nouveau_object *eng3d = nv30_context(pipe)->screen->eng3d;
struct nv30_miptree *mt = nv30_miptree(pt);
struct nv30_sampler_view *so;
so = MALLOC_STRUCT(nv30_sampler_view);
if (!so)
return NULL;
so->pipe = *tmpl;
so->pipe.reference.count = 1;
so->pipe.texture = NULL;
so->pipe.context = pipe;
pipe_resource_reference(&so->pipe.texture, pt);
so->fmt = NV30_3D_TEX_FORMAT_NO_BORDER;
switch (pt->target) {
case PIPE_TEXTURE_1D:
so->fmt |= NV30_3D_TEX_FORMAT_DIMS_1D;
break;
case PIPE_TEXTURE_CUBE:
so->fmt |= NV30_3D_TEX_FORMAT_CUBIC;
case PIPE_TEXTURE_2D:
case PIPE_TEXTURE_RECT:
so->fmt |= NV30_3D_TEX_FORMAT_DIMS_2D;
break;
case PIPE_TEXTURE_3D:
so->fmt |= NV30_3D_TEX_FORMAT_DIMS_3D;
break;
default:
assert(0);
so->fmt |= NV30_3D_TEX_FORMAT_DIMS_1D;
break;
}
so->filt = fmt->filter;
so->wrap = fmt->wrap;
so->swz = fmt->swizzle;
so->swz |= swizzle(fmt, 3, tmpl->swizzle_a);
so->swz |= swizzle(fmt, 0, tmpl->swizzle_r) << 2;
so->swz |= swizzle(fmt, 1, tmpl->swizzle_g) << 4;
so->swz |= swizzle(fmt, 2, tmpl->swizzle_b) << 6;
/* apparently, we need to ignore the t coordinate for 1D textures to
* fix piglit tex1d-2dborder
*/
so->wrap_mask = ~0;
if (pt->target == PIPE_TEXTURE_1D) {
so->wrap_mask &= ~NV30_3D_TEX_WRAP_T__MASK;
so->wrap |= NV30_3D_TEX_WRAP_T_REPEAT;
}
/* yet more hardware suckage, can't filter 32-bit float formats */
switch (tmpl->format) {
case PIPE_FORMAT_R32_FLOAT:
case PIPE_FORMAT_R32G32B32A32_FLOAT:
so->filt_mask = ~(NV30_3D_TEX_FILTER_MIN__MASK |
NV30_3D_TEX_FILTER_MAG__MASK);
so->filt |= NV30_3D_TEX_FILTER_MIN_NEAREST |
NV30_3D_TEX_FILTER_MAG_NEAREST;
break;
default:
so->filt_mask = ~0;
break;
}
so->npot_size0 = (pt->width0 << 16) | pt->height0;
if (eng3d->oclass >= NV40_3D_CLASS) {
so->npot_size1 = (pt->depth0 << 20) | mt->uniform_pitch;
if (!mt->swizzled)
so->fmt |= NV40_3D_TEX_FORMAT_LINEAR;
so->fmt |= 0x00008000;
so->fmt |= (pt->last_level + 1) << NV40_3D_TEX_FORMAT_MIPMAP_COUNT__SHIFT;
} else {
so->swz |= mt->uniform_pitch << NV30_3D_TEX_SWIZZLE_RECT_PITCH__SHIFT;
if (pt->last_level)
so->fmt |= NV30_3D_TEX_FORMAT_MIPMAP;
so->fmt |= util_logbase2(pt->width0) << 20;
so->fmt |= util_logbase2(pt->height0) << 24;
so->fmt |= util_logbase2(pt->depth0) << 28;
so->fmt |= 0x00010000;
}
so->base_lod = so->pipe.u.tex.first_level << 8;
so->high_lod = MIN2(pt->last_level, so->pipe.u.tex.last_level) << 8;
return &so->pipe;
}
static void
nv30_sampler_view_destroy(struct pipe_context *pipe,
struct pipe_sampler_view *view)
{
pipe_resource_reference(&view->texture, NULL);
FREE(view);
}
void
nv30_texture_init(struct pipe_context *pipe)
{
pipe->create_sampler_state = nv30_sampler_state_create;
pipe->delete_sampler_state = nv30_sampler_state_delete;
pipe->bind_sampler_states = nv30_bind_sampler_states;
pipe->create_sampler_view = nv30_sampler_view_create;
pipe->sampler_view_destroy = nv30_sampler_view_destroy;
}