src/gallium/drivers/nouveau/nv30/nv30_fragtex.c

   1 /*
   2  * Copyright 2012 Red Hat Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  * Authors: Ben Skeggs
  23  *
  24  */
  25
  26 #include "util/u_inlines.h"
  27
  28 #include "nv_object.xml.h"
  29 #include "nv30/nv30-40_3d.xml.h"
  30 #include "nv30/nv30_context.h"
  31 #include "nv30/nv30_format.h"
  32
  33 void
  34 nv30_fragtex_validate(struct nv30_context *nv30)
  35 {
  36    struct pipe_screen *pscreen = &nv30->screen->base.base;
  37    struct nouveau_object *eng3d = nv30->screen->eng3d;
  38    struct nouveau_pushbuf *push = nv30->base.pushbuf;
  39    unsigned dirty = nv30->fragprog.dirty_samplers;
  40
  41    while (dirty) {
  42       unsigned unit = ffs(dirty) - 1;
  43       struct nv30_sampler_view *sv = (void *)nv30->fragprog.textures[unit];
  44       struct nv30_sampler_state *ss = nv30->fragprog.samplers[unit];
  45
  46       PUSH_RESET(push, BUFCTX_FRAGTEX(unit));
  47
  48       if (ss && sv) {
  49          const struct nv30_texfmt *fmt = nv30_texfmt(pscreen, sv->pipe.format);
  50          struct pipe_resource *pt = sv->pipe.texture;
  51          struct nv30_miptree *mt = nv30_miptree(pt);
  52          unsigned min_lod, max_lod;
  53          u32 filter = sv->filt | (ss->filt & sv->filt_mask);
  54          u32 format = sv->fmt | ss->fmt;
  55          u32 enable = ss->en;
  56
  57          /* handle base_level when not using a mip filter, min/max level
  58           * is unfortunately ignored by the hardware otherwise
  59           */
  60          if (ss->pipe.min_mip_filter == PIPE_TEX_MIPFILTER_NONE) {
  61             if (sv->base_lod)
  62                filter += 0x00020000; /* N/L -> NMN/LMN */
  63             max_lod = sv->base_lod;
  64             min_lod = sv->base_lod;
  65          } else {
  66             max_lod = MIN2(ss->max_lod + sv->base_lod, sv->high_lod);
  67             min_lod = MIN2(ss->min_lod + sv->base_lod, max_lod);
  68          }
  69
  70          if (eng3d->oclass >= NV40_3D_CLASS) {
  71             /* this is a tad stupid of the hardware, but there's no non-rcomp
  72              * z16/z24 texture formats to be had, we have to suffer and lose
  73              * some precision to handle this case.
  74              */
  75             if (ss->pipe.compare_mode != PIPE_TEX_COMPARE_R_TO_TEXTURE) {
  76                if (fmt->nv40 == NV40_3D_TEX_FORMAT_FORMAT_Z16)
  77                   format |= NV40_3D_TEX_FORMAT_FORMAT_A8L8;
  78                else
  79                if (fmt->nv40 == NV40_3D_TEX_FORMAT_FORMAT_Z24)
  80                   format |= NV40_3D_TEX_FORMAT_FORMAT_A16L16;
  81                else
  82                   format |= fmt->nv40;
  83             } else {
  84                format |= fmt->nv40;
  85             }
  86
  87             enable |= (min_lod << 19) | (max_lod << 7);
  88             enable |= NV40_3D_TEX_ENABLE_ENABLE;
  89
  90             BEGIN_NV04(push, NV40_3D(TEX_SIZE1(unit)), 1);
  91             PUSH_DATA (push, sv->npot_size1);
  92          } else {
  93             /* this is a tad stupid of the hardware, but there's no non-rcomp
  94              * z16/z24 texture formats to be had, we have to suffer and lose
  95              * some precision to handle this case.
  96              */
  97             if (ss->pipe.compare_mode != PIPE_TEX_COMPARE_R_TO_TEXTURE) {
  98                if (fmt->nv30 == NV30_3D_TEX_FORMAT_FORMAT_Z16) {
  99                   if (ss->pipe.normalized_coords)
 100                      format |= NV30_3D_TEX_FORMAT_FORMAT_A8L8;
 101                   else
 102                      format |= NV30_3D_TEX_FORMAT_FORMAT_A8L8_RECT;
 103                } else
 104                if (fmt->nv30 == NV30_3D_TEX_FORMAT_FORMAT_Z24) {
 105                   if (ss->pipe.normalized_coords)
 106                      format |= NV30_3D_TEX_FORMAT_FORMAT_HILO16;
 107                   else
 108                      format |= NV30_3D_TEX_FORMAT_FORMAT_HILO16_RECT;
 109                } else {
 110                   if (ss->pipe.normalized_coords)
 111                      format |= fmt->nv30;
 112                   else
 113                      format |= fmt->nv30_rect;
 114                }
 115             } else {
 116                if (ss->pipe.normalized_coords)
 117                   format |= fmt->nv30;
 118                else
 119                   format |= fmt->nv30_rect;
 120             }
 121
 122             enable |= NV30_3D_TEX_ENABLE_ENABLE;
 123             enable |= (min_lod << 18) | (max_lod << 6);
 124          }
 125
 126          BEGIN_NV04(push, NV30_3D(TEX_OFFSET(unit)), 8);
 127          PUSH_MTHDl(push, NV30_3D(TEX_OFFSET(unit)), BUFCTX_FRAGTEX(unit),
 128                           mt->base.bo, 0, NOUVEAU_BO_VRAM | NOUVEAU_BO_RD);
 129          PUSH_MTHDs(push, NV30_3D(TEX_FORMAT(unit)), BUFCTX_FRAGTEX(unit),
 130                           mt->base.bo, format, NOUVEAU_BO_VRAM | NOUVEAU_BO_RD,
 131                           NV30_3D_TEX_FORMAT_DMA0,
 132                           NV30_3D_TEX_FORMAT_DMA1);
 133          PUSH_DATA (push, sv->wrap | (ss->wrap & sv->wrap_mask));
 134          PUSH_DATA (push, enable);
 135          PUSH_DATA (push, sv->swz);
 136          PUSH_DATA (push, filter);
 137          PUSH_DATA (push, sv->npot_size0);
 138          PUSH_DATA (push, ss->bcol);
 139          BEGIN_NV04(push, NV30_3D(TEX_FILTER_OPTIMIZATION(unit)), 1);
 140          PUSH_DATA (push, nv30->config.filter);
 141       } else {
 142          BEGIN_NV04(push, NV30_3D(TEX_ENABLE(unit)), 1);
 143          PUSH_DATA (push, 0);
 144       }
 145
 146       dirty &= ~(1 << unit);
 147    }
 148
 149    nv30->fragprog.dirty_samplers = 0;
 150 }
 151
 152 void
 153 nv30_fragtex_sampler_states_bind(struct pipe_context *pipe,
 154                                  unsigned nr, void **hwcso)
 155 {
 156    struct nv30_context *nv30 = nv30_context(pipe);
 157    unsigned i;
 158
 159    for (i = 0; i < nr; i++) {
 160       nv30->fragprog.samplers[i] = hwcso[i];
 161       nv30->fragprog.dirty_samplers |= (1 << i);
 162    }
 163
 164    for (; i < nv30->fragprog.num_samplers; i++) {
 165       nv30->fragprog.samplers[i] = NULL;
 166       nv30->fragprog.dirty_samplers |= (1 << i);
 167    }
 168
 169    nv30->fragprog.num_samplers = nr;
 170    nv30->dirty |= NV30_NEW_FRAGTEX;
 171 }
 172
 173
 174 static void
 175 nv30_fragtex_set_sampler_views(struct pipe_context *pipe, unsigned nr,
 176                                struct pipe_sampler_view **views)
 177 {
 178    struct nv30_context *nv30 = nv30_context(pipe);
 179    unsigned i;
 180
 181    for (i = 0; i < nr; i++) {
 182       nouveau_bufctx_reset(nv30->bufctx, BUFCTX_FRAGTEX(i));
 183       pipe_sampler_view_reference(&nv30->fragprog.textures[i], views[i]);
 184       nv30->fragprog.dirty_samplers |= (1 << i);
 185    }
 186
 187    for (; i < nv30->fragprog.num_textures; i++) {
 188       nouveau_bufctx_reset(nv30->bufctx, BUFCTX_FRAGTEX(i));
 189       pipe_sampler_view_reference(&nv30->fragprog.textures[i], NULL);
 190       nv30->fragprog.dirty_samplers |= (1 << i);
 191    }
 192
 193    nv30->fragprog.num_textures = nr;
 194    nv30->dirty |= NV30_NEW_FRAGTEX;
 195 }
 196
 197 void
 198 nv30_fragtex_init(struct pipe_context *pipe)
 199 {
 200    pipe->set_fragment_sampler_views = nv30_fragtex_set_sampler_views;
 201 }