workbench/libs/mesa/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 uint32_t
  61 nvc0_miptree_zslice_offset(struct nvc0_miptree *mt, unsigned l, unsigned z)
  62 {
  63    unsigned nblocksy; /* height of texture level aligned to tile height */
  64
  65    unsigned stride_2d; /* to next slice within a 3D tile */
  66    unsigned stride_3d; /* to slice in the next (in z direction !) 3D tile */
  67
  68    unsigned tile_d_shift = NVC0_TILE_DIM_SHIFT(mt->level[l].tile_mode, 2);
  69    unsigned tile_d = 1 << tile_d_shift;
  70
  71    nblocksy = util_format_get_nblocksy(mt->base.base.format,
  72                                        u_minify(mt->base.base.height0, l));
  73
  74    nblocksy = align(nblocksy, NVC0_TILE_HEIGHT(mt->level[l].tile_mode));
  75
  76    stride_2d = NVC0_TILE_SIZE_2D(mt->level[l].tile_mode);
  77
  78    stride_3d = (nblocksy * mt->level[l].pitch) << tile_d_shift;
  79
  80    return (z & (tile_d - 1)) * stride_2d + (z >> tile_d_shift) * stride_3d;
  81 }
  82
  83 static void
  84 nvc0_miptree_destroy(struct pipe_screen *pscreen, struct pipe_resource *pt)
  85 {
  86    struct nvc0_miptree *mt = nvc0_miptree(pt);
  87
  88    nouveau_screen_bo_release(pscreen, mt->base.bo);
  89
  90    FREE(mt);
  91 }
  92
  93 static boolean
  94 nvc0_miptree_get_handle(struct pipe_screen *pscreen,
  95                         struct pipe_resource *pt,
  96                         struct winsys_handle *whandle)
  97 {
  98    struct nvc0_miptree *mt = nvc0_miptree(pt);
  99    unsigned stride;
 100
 101    if (!mt || !mt->base.bo)
 102       return FALSE;
 103
 104    stride = util_format_get_stride(mt->base.base.format,
 105                                    mt->base.base.width0);
 106
 107    return nouveau_screen_bo_get_handle(pscreen,
 108                                        mt->base.bo,
 109                                        stride,
 110                                        whandle);
 111 }
 112
 113 const struct u_resource_vtbl nvc0_miptree_vtbl =
 114 {
 115    nvc0_miptree_get_handle,         /* get_handle */
 116    nvc0_miptree_destroy,            /* resource_destroy */
 117    nvc0_miptree_transfer_new,       /* get_transfer */
 118    nvc0_miptree_transfer_del,       /* transfer_destroy */
 119    nvc0_miptree_transfer_map,         /* transfer_map */
 120    u_default_transfer_flush_region, /* transfer_flush_region */
 121    nvc0_miptree_transfer_unmap,     /* transfer_unmap */
 122    u_default_transfer_inline_write  /* transfer_inline_write */
 123 };
 124
 125 struct pipe_resource *
 126 nvc0_miptree_create(struct pipe_screen *pscreen,
 127                     const struct pipe_resource *templ)
 128 {
 129    struct nouveau_device *dev = nouveau_screen(pscreen)->device;
 130    struct nvc0_miptree *mt = CALLOC_STRUCT(nvc0_miptree);
 131    struct pipe_resource *pt = &mt->base.base;
 132    int ret;
 133    unsigned w, h, d, l, alloc_size;
 134    uint32_t tile_flags;
 135
 136    if (!mt)
 137       return NULL;
 138
 139    mt->base.vtbl = &nvc0_miptree_vtbl;
 140    *pt = *templ;
 141    pipe_reference_init(&pt->reference, 1);
 142    pt->screen = pscreen;
 143
 144    mt->layout_3d = pt->target == PIPE_TEXTURE_3D;
 145
 146    w = pt->width0;
 147    h = pt->height0;
 148    d = mt->layout_3d ? pt->depth0 : 1;
 149
 150    switch (pt->format) {
 151    case PIPE_FORMAT_Z16_UNORM:
 152       tile_flags = 0x0700; /* COMPRESSED */
 153       tile_flags = 0x0100; /* NORMAL */
 154       break;
 155    case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
 156       tile_flags = 0x5300; /* MSAA 4, COMPRESSED */
 157       tile_flags = 0x4600; /* NORMAL */
 158       break;
 159    case PIPE_FORMAT_Z24X8_UNORM:
 160    case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
 161       tile_flags = 0x1100; /* NORMAL */
 162       if (w * h >= 128 * 128 && 0)
 163          tile_flags = 0x1700; /* COMPRESSED, requires magic */
 164       break;
 165    case PIPE_FORMAT_R32G32B32A32_FLOAT:
 166       tile_flags = 0xf500; /* COMPRESSED */
 167       tile_flags = 0xf700; /* MSAA 2 */
 168       tile_flags = 0xf900; /* MSAA 4 */
 169       tile_flags = 0xfe00; /* NORMAL */
 170       break;
 171    case PIPE_FORMAT_Z32_FLOAT:
 172       tile_flags = 0x7b00;
 173       break;
 174    case PIPE_FORMAT_Z32_FLOAT_S8X24_USCALED:
 175       tile_flags = 0xce00; /* COMPRESSED */
 176       tile_flags = 0xcf00; /* MSAA 2, COMPRESSED */
 177       tile_flags = 0xd000; /* MSAA 4, COMPRESSED */
 178       tile_flags = 0xc300; /* NORMAL */
 179       break;
 180    case PIPE_FORMAT_R16G16B16A16_UNORM:
 181       tile_flags = 0xe900; /* COMPRESSED */
 182       tile_flags = 0xfe00; /* NORMAL */
 183       break;
 184    default:
 185       tile_flags = 0xe000; /* MSAA 4, COMPRESSED 32 BIT */
 186       tile_flags = 0xfe00; /* NORMAL 32 BIT */
 187       if (w * h >= 128 * 128 && 0)
 188          tile_flags = 0xdb00; /* COMPRESSED 32 BIT, requires magic */
 189       break;
 190    }
 191
 192    /* For 3D textures, a mipmap is spanned by all the layers, for array
 193     * textures and cube maps, each layer contains its own mipmaps.
 194     */
 195    for (l = 0; l <= pt->last_level; ++l) {
 196       struct nvc0_miptree_level *lvl = &mt->level[l];
 197       unsigned nbx = util_format_get_nblocksx(pt->format, w);
 198       unsigned nby = util_format_get_nblocksy(pt->format, h);
 199       unsigned blocksize = util_format_get_blocksize(pt->format);
 200
 201       lvl->offset = mt->total_size;
 202       lvl->tile_mode = get_tile_dims(nbx, nby, d);
 203       lvl->pitch = align(nbx * blocksize, NVC0_TILE_PITCH(lvl->tile_mode));
 204
 205       mt->total_size += lvl->pitch *
 206          align(nby, NVC0_TILE_HEIGHT(lvl->tile_mode)) *
 207          align(d, NVC0_TILE_DEPTH(lvl->tile_mode));
 208
 209       w = u_minify(w, 1);
 210       h = u_minify(h, 1);
 211       d = u_minify(d, 1);
 212    }
 213
 214    if (pt->array_size > 1) {
 215       mt->layer_stride = align(mt->total_size,
 216                                NVC0_TILE_SIZE(mt->level[0].tile_mode));
 217       mt->total_size = mt->layer_stride * pt->array_size;
 218    }
 219
 220    alloc_size = mt->total_size;
 221    if (tile_flags == 0x1700)
 222       alloc_size *= 3; /* HiZ, XXX: correct size */
 223
 224    ret = nouveau_bo_new_tile(dev, NOUVEAU_BO_VRAM, 256, alloc_size,
 225                              mt->level[0].tile_mode, tile_flags,
 226                              &mt->base.bo);
 227    if (ret) {
 228       FREE(mt);
 229       return NULL;
 230    }
 231    mt->base.domain = NOUVEAU_BO_VRAM;
 232
 233    return pt;
 234 }
 235
 236 struct pipe_resource *
 237 nvc0_miptree_from_handle(struct pipe_screen *pscreen,
 238                          const struct pipe_resource *templ,
 239                          struct winsys_handle *whandle)
 240 {
 241    struct nvc0_miptree *mt;
 242    unsigned stride;
 243
 244    /* only supports 2D, non-mipmapped textures for the moment */
 245    if ((templ->target != PIPE_TEXTURE_2D &&
 246         templ->target != PIPE_TEXTURE_RECT) ||
 247        templ->last_level != 0 ||
 248        templ->depth0 != 1 ||
 249        templ->array_size > 1)
 250       return NULL;
 251
 252    mt = CALLOC_STRUCT(nvc0_miptree);
 253    if (!mt)
 254       return NULL;
 255
 256    mt->base.bo = nouveau_screen_bo_from_handle(pscreen, whandle, &stride);
 257    if (mt->base.bo == NULL) {
 258       FREE(mt);
 259       return NULL;
 260    }
 261
 262    mt->base.base = *templ;
 263    mt->base.vtbl = &nvc0_miptree_vtbl;
 264    pipe_reference_init(&mt->base.base.reference, 1);
 265    mt->base.base.screen = pscreen;
 266    mt->level[0].pitch = stride;
 267    mt->level[0].offset = 0;
 268    mt->level[0].tile_mode = mt->base.bo->tile_mode;
 269
 270    /* no need to adjust bo reference count */
 271    return &mt->base.base;
 272 }
 273
 274
 275 /* Surface functions.
 276  */
 277
 278 struct pipe_surface *
 279 nvc0_miptree_surface_new(struct pipe_context *pipe,
 280                          struct pipe_resource *pt,
 281                          const struct pipe_surface *templ)
 282 {
 283    struct nvc0_miptree *mt = nvc0_miptree(pt); /* guaranteed */
 284    struct nvc0_surface *ns;
 285    struct pipe_surface *ps;
 286    struct nvc0_miptree_level *lvl = &mt->level[templ->u.tex.level];
 287
 288    ns = CALLOC_STRUCT(nvc0_surface);
 289    if (!ns)
 290       return NULL;
 291    ps = &ns->base;
 292
 293    pipe_reference_init(&ps->reference, 1);
 294    pipe_resource_reference(&ps->texture, pt);
 295    ps->context = pipe;
 296    ps->format = templ->format;
 297    ps->usage = templ->usage;
 298    ps->u.tex.level = templ->u.tex.level;
 299    ps->u.tex.first_layer = templ->u.tex.first_layer;
 300    ps->u.tex.last_layer = templ->u.tex.last_layer;
 301
 302    ns->width = u_minify(pt->width0, ps->u.tex.level);
 303    ns->height = u_minify(pt->height0, ps->u.tex.level);
 304    ns->depth = ps->u.tex.last_layer - ps->u.tex.first_layer + 1;
 305    ns->offset = lvl->offset;
 306
 307    /* comment says there are going to be removed, but they're used by the st */
 308    ps->width = ns->width;
 309    ps->height = ns->height;
 310
 311    return ps;
 312 }
 313
 314 void
 315 nvc0_miptree_surface_del(struct pipe_context *pipe, struct pipe_surface *ps)
 316 {
 317    struct nvc0_surface *s = nvc0_surface(ps);
 318
 319    pipe_resource_reference(&ps->texture, NULL);
 320
 321    FREE(s);
 322 }