src/gallium/drivers/nvc0/nvc0_miptree.c

   1 /*
   2  * Copyright 2008 Ben Skeggs
   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 BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  18  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
  19  * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  20  * SOFTWARE.
  21  */
  22
  23 #include "pipe/p_state.h"
  24 #include "pipe/p_defines.h"
  25 #include "util/u_inlines.h"
  26 #include "util/u_format.h"
  27
  28 #include "nvc0_context.h"
  29 #include "nvc0_resource.h"
  30 #include "nvc0_transfer.h"
  31
  32 static INLINE uint32_t
  33 get_tile_dims(unsigned nx, unsigned ny, unsigned nz)
  34 {
  35    uint32_t tile_mode = 0x000;
  36
  37    if (ny > 64) tile_mode = 0x040; /* height 128 tiles */
  38    else
  39    if (ny > 32) tile_mode = 0x030; /* height 64 tiles */
  40    else
  41    if (ny > 16) tile_mode = 0x020; /* height 32 tiles */
  42    else
  43    if (ny >  8) tile_mode = 0x010; /* height 16 tiles */
  44
  45    if (nz == 1)
  46       return tile_mode;
  47    else
  48    if (tile_mode > 0x020)
  49       tile_mode = 0x020;
  50
  51    if (nz > 16 && tile_mode < 0x020)
  52       return tile_mode | 0x500; /* depth 32 tiles */
  53    if (nz > 8) return tile_mode | 0x400; /* depth 16 tiles */
  54    if (nz > 4) return tile_mode | 0x300; /* depth 8 tiles */
  55    if (nz > 2) return tile_mode | 0x200; /* depth 4 tiles */
  56
  57    return tile_mode | 0x100;
  58 }
  59
  60 static INLINE unsigned
  61 get_zslice_offset(uint32_t tile_mode, unsigned z, unsigned pitch, unsigned nbh)
  62 {
  63    unsigned tile_h = NVC0_TILE_H(tile_mode);
  64    unsigned tile_d = NVC0_TILE_D(tile_mode);
  65
  66    /* pitch_2d == to next slice within this volume tile */
  67    /* pitch_3d == size (in bytes) of a volume tile */
  68    unsigned pitch_2d = tile_h * 64;
  69    unsigned pitch_3d = tile_d * align(nbh, tile_h) * pitch;
  70
  71    return (z % tile_d) * pitch_2d + (z / tile_d) * pitch_3d;
  72 }
  73
  74 static void
  75 nvc0_miptree_destroy(struct pipe_screen *pscreen, struct pipe_resource *pt)
  76 {
  77    struct nvc0_miptree *mt = nvc0_miptree(pt);
  78    unsigned l;
  79
  80    for (l = 0; l <= pt->last_level; ++l)
  81       FREE(mt->level[l].image_offset);
  82
  83    nouveau_screen_bo_release(pscreen, mt->base.bo);
  84
  85    FREE(mt);
  86 }
  87
  88 static boolean
  89 nvc0_miptree_get_handle(struct pipe_screen *pscreen,
  90                         struct pipe_resource *pt,
  91                         struct winsys_handle *whandle)
  92 {
  93    struct nvc0_miptree *mt = nvc0_miptree(pt);
  94    unsigned stride;
  95
  96    if (!mt || !mt->base.bo)
  97       return FALSE;
  98
  99    stride = util_format_get_stride(mt->base.base.format,
 100                                    mt->base.base.width0);
 101
 102    return nouveau_screen_bo_get_handle(pscreen,
 103                                        mt->base.bo,
 104                                        stride,
 105                                        whandle);
 106 }
 107
 108 const struct u_resource_vtbl nvc0_miptree_vtbl =
 109 {
 110    nvc0_miptree_get_handle,         /* get_handle */
 111    nvc0_miptree_destroy,            /* resource_destroy */
 112    NULL,                            /* is_resource_referenced */
 113    nvc0_miptree_transfer_new,       /* get_transfer */
 114    nvc0_miptree_transfer_del,       /* transfer_destroy */
 115    nvc0_miptree_transfer_map,         /* transfer_map */
 116    u_default_transfer_flush_region, /* transfer_flush_region */
 117    nvc0_miptree_transfer_unmap,     /* transfer_unmap */
 118    u_default_transfer_inline_write  /* transfer_inline_write */
 119 };
 120
 121 struct pipe_resource *
 122 nvc0_miptree_create(struct pipe_screen *pscreen,
 123                     const struct pipe_resource *templ)
 124 {
 125    struct nouveau_device *dev = nouveau_screen(pscreen)->device;
 126    struct nvc0_miptree *mt = CALLOC_STRUCT(nvc0_miptree);
 127    struct pipe_resource *pt = &mt->base.base;
 128    int ret, i;
 129    unsigned w, h, d, l, image_alignment, alloc_size;
 130    uint32_t tile_flags;
 131
 132    if (!mt)
 133       return NULL;
 134
 135    mt->base.vtbl = &nvc0_miptree_vtbl;
 136    *pt = *templ;
 137    pipe_reference_init(&pt->reference, 1);
 138    pt->screen = pscreen;
 139
 140    w = pt->width0;
 141    h = pt->height0;
 142    d = pt->depth0;
 143
 144    switch (pt->format) {
 145    case PIPE_FORMAT_Z16_UNORM:
 146       tile_flags = 0x0700; /* COMPRESSED */
 147       tile_flags = 0x0200; /* NORMAL ? */
 148       tile_flags = 0x0100; /* NORMAL ? */
 149       break;
 150    case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
 151       tile_flags = 0x5300; /* MSAA 4, COMPRESSED */
 152       tile_flags = 0x4600; /* NORMAL */
 153       break;
 154    case PIPE_FORMAT_Z24X8_UNORM:
 155    case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
 156       tile_flags = 0x1100; /* NORMAL */
 157       if (w * h >= 128 * 128 && 0)
 158          tile_flags = 0x1700; /* COMPRESSED, requires magic */
 159       break;
 160    case PIPE_FORMAT_R32G32B32A32_FLOAT:
 161       tile_flags = 0xf500; /* COMPRESSED */
 162       tile_flags = 0xf700; /* MSAA 2 */
 163       tile_flags = 0xf900; /* MSAA 4 */
 164       tile_flags = 0xfe00; /* NORMAL */
 165       break;
 166    case PIPE_FORMAT_Z32_FLOAT_S8X24_USCALED:
 167       tile_flags = 0xce00; /* COMPRESSED */
 168       tile_flags = 0xcf00; /* MSAA 2, COMPRESSED */
 169       tile_flags = 0xd000; /* MSAA 4, COMPRESSED */
 170       tile_flags = 0xc300; /* NORMAL */
 171       break;
 172    case PIPE_FORMAT_R16G16B16A16_UNORM:
 173       tile_flags = 0xe900; /* COMPRESSED */
 174       break;
 175    default:
 176       tile_flags = 0xe000; /* MSAA 4, COMPRESSED 32 BIT */
 177       tile_flags = 0xfe00; /* NORMAL 32 BIT */
 178       if (w * h >= 128 * 128 && 0)
 179          tile_flags = 0xdb00; /* COMPRESSED 32 BIT, requires magic */
 180       break;
 181    }
 182
 183    /* XXX: texture arrays */
 184    mt->image_nr = (pt->target == PIPE_TEXTURE_CUBE) ? 6 : 1;
 185
 186    for (l = 0; l <= pt->last_level; l++) {
 187       struct nvc0_miptree_level *lvl = &mt->level[l];
 188       unsigned nby = util_format_get_nblocksy(pt->format, h);
 189
 190       lvl->image_offset = CALLOC(mt->image_nr, sizeof(int));
 191       lvl->pitch = align(util_format_get_stride(pt->format, w), 64);
 192       lvl->tile_mode = get_tile_dims(w, nby, d);
 193
 194       w = u_minify(w, 1);
 195       h = u_minify(h, 1);
 196       d = u_minify(d, 1);
 197    }
 198
 199    image_alignment  = NVC0_TILE_H(mt->level[0].tile_mode) * 64;
 200    image_alignment *= NVC0_TILE_D(mt->level[0].tile_mode);
 201
 202    /* NOTE the distinction between arrays of mip-mapped 2D textures and
 203     * mip-mapped 3D textures. We can't use image_nr == depth for 3D mip.
 204     */
 205    for (i = 0; i < mt->image_nr; i++) {
 206       for (l = 0; l <= pt->last_level; l++) {
 207          struct nvc0_miptree_level *lvl = &mt->level[l];
 208          int size;
 209          unsigned tile_h = NVC0_TILE_H(lvl->tile_mode);
 210          unsigned tile_d = NVC0_TILE_D(lvl->tile_mode);
 211
 212          h = u_minify(pt->height0, l);
 213          d = u_minify(pt->depth0, l);
 214
 215          size  = lvl->pitch;
 216          size *= align(util_format_get_nblocksy(pt->format, h), tile_h);
 217          size *= align(d, tile_d);
 218
 219          lvl->image_offset[i] = mt->total_size;
 220
 221          mt->total_size += size;
 222       }
 223       mt->total_size = align(mt->total_size, image_alignment);
 224    }
 225
 226    alloc_size = mt->total_size;
 227    if (tile_flags == 0x1700)
 228       alloc_size *= 3; /* HiZ, XXX: correct size */
 229
 230    ret = nouveau_bo_new_tile(dev, NOUVEAU_BO_VRAM, 256, alloc_size,
 231                              mt->level[0].tile_mode, tile_flags,
 232                              &mt->base.bo);
 233    if (ret) {
 234       for (l = 0; l <= pt->last_level; ++l)
 235          FREE(mt->level[l].image_offset);
 236       FREE(mt);
 237       return NULL;
 238    }
 239
 240    return pt;
 241 }
 242
 243 struct pipe_resource *
 244 nvc0_miptree_from_handle(struct pipe_screen *pscreen,
 245                          const struct pipe_resource *templ,
 246                          struct winsys_handle *whandle)
 247 {
 248    struct nvc0_miptree *mt;
 249    unsigned stride;
 250
 251         /* only supports 2D, non-mip mapped textures for the moment */
 252    if ((templ->target != PIPE_TEXTURE_2D &&
 253         templ->target != PIPE_TEXTURE_RECT) ||
 254        templ->last_level != 0 ||
 255        templ->depth0 != 1)
 256       return NULL;
 257
 258    mt = CALLOC_STRUCT(nvc0_miptree);
 259    if (!mt)
 260       return NULL;
 261
 262    mt->base.bo = nouveau_screen_bo_from_handle(pscreen, whandle, &stride);
 263    if (mt->base.bo == NULL) {
 264       FREE(mt);
 265       return NULL;
 266    }
 267
 268    mt->base.base = *templ;
 269    mt->base.vtbl = &nvc0_miptree_vtbl;
 270    pipe_reference_init(&mt->base.base.reference, 1);
 271    mt->base.base.screen = pscreen;
 272    mt->image_nr = 1;
 273    mt->level[0].pitch = stride;
 274    mt->level[0].image_offset = CALLOC(1, sizeof(unsigned));
 275    mt->level[0].tile_mode = mt->base.bo->tile_mode;
 276
 277    /* no need to adjust bo reference count */
 278    return &mt->base.base;
 279 }
 280
 281
 282 /* Surface functions.
 283  */
 284
 285 struct pipe_surface *
 286 nvc0_miptree_surface_new(struct pipe_screen *pscreen, struct pipe_resource *pt,
 287                          unsigned face, unsigned level, unsigned zslice,
 288                          unsigned flags)
 289 {
 290    struct nvc0_miptree *mt = nvc0_miptree(pt);
 291    struct nvc0_miptree_level *lvl = &mt->level[level];
 292    struct pipe_surface *ps;
 293    unsigned img = 0;
 294
 295    if (pt->target == PIPE_TEXTURE_CUBE)
 296       img = face;
 297
 298    ps = CALLOC_STRUCT(pipe_surface);
 299    if (!ps)
 300       return NULL;
 301    pipe_resource_reference(&ps->texture, pt);
 302    ps->format = pt->format;
 303    ps->width = u_minify(pt->width0, level);
 304    ps->height = u_minify(pt->height0, level);
 305    ps->usage = flags;
 306    pipe_reference_init(&ps->reference, 1);
 307    ps->face = face;
 308    ps->level = level;
 309    ps->zslice = zslice;
 310    ps->offset = lvl->image_offset[img];
 311
 312    if (pt->target == PIPE_TEXTURE_3D)
 313       ps->offset += get_zslice_offset(lvl->tile_mode, zslice, lvl->pitch,
 314                                       util_format_get_nblocksy(pt->format,
 315                                                                ps->height));
 316    return ps;
 317 }
 318
 319 void
 320 nvc0_miptree_surface_del(struct pipe_surface *ps)
 321 {
 322    struct nvc0_surface *s = nvc0_surface(ps);
 323
 324    pipe_resource_reference(&ps->texture, NULL);
 325
 326    FREE(s);
 327 }