src/gallium/drivers/etnaviv/etnaviv_texture.c

   1 /*
   2  * Copyright (c) 2012-2015 Etnaviv Project
   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, sub license,
   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 (including the
  12  * next paragraph) shall be included in all copies or substantial portions
  13  * of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  21  * DEALINGS IN THE SOFTWARE.
  22  *
  23  * Authors:
  24  *    Wladimir J. van der Laan <laanwj@gmail.com>
  25  */
  26
  27 #include "etnaviv_texture.h"
  28
  29 #include "hw/common.xml.h"
  30
  31 #include "etnaviv_clear_blit.h"
  32 #include "etnaviv_context.h"
  33 #include "etnaviv_emit.h"
  34 #include "etnaviv_format.h"
  35 #include "etnaviv_translate.h"
  36 #include "util/u_inlines.h"
  37 #include "util/u_memory.h"
  38
  39 #include <drm_fourcc.h>
  40
  41 static void *
  42 etna_create_sampler_state(struct pipe_context *pipe,
  43                           const struct pipe_sampler_state *ss)
  44 {
  45    struct etna_sampler_state *cs = CALLOC_STRUCT(etna_sampler_state);
  46
  47    if (!cs)
  48       return NULL;
  49
  50    cs->TE_SAMPLER_CONFIG0 =
  51       VIVS_TE_SAMPLER_CONFIG0_UWRAP(translate_texture_wrapmode(ss->wrap_s)) |
  52       VIVS_TE_SAMPLER_CONFIG0_VWRAP(translate_texture_wrapmode(ss->wrap_t)) |
  53       VIVS_TE_SAMPLER_CONFIG0_MIN(translate_texture_filter(ss->min_img_filter)) |
  54       VIVS_TE_SAMPLER_CONFIG0_MIP(translate_texture_mipfilter(ss->min_mip_filter)) |
  55       VIVS_TE_SAMPLER_CONFIG0_MAG(translate_texture_filter(ss->mag_img_filter)) |
  56       COND(ss->normalized_coords, VIVS_TE_SAMPLER_CONFIG0_ROUND_UV);
  57    cs->TE_SAMPLER_CONFIG1 = 0; /* VIVS_TE_SAMPLER_CONFIG1 (swizzle, extended
  58                                   format) fully determined by sampler view */
  59    cs->TE_SAMPLER_LOD_CONFIG =
  60       COND(ss->lod_bias != 0.0, VIVS_TE_SAMPLER_LOD_CONFIG_BIAS_ENABLE) |
  61       VIVS_TE_SAMPLER_LOD_CONFIG_BIAS(etna_float_to_fixp55(ss->lod_bias));
  62
  63    if (ss->min_mip_filter != PIPE_TEX_MIPFILTER_NONE) {
  64       cs->min_lod = etna_float_to_fixp55(ss->min_lod);
  65       cs->max_lod = etna_float_to_fixp55(ss->max_lod);
  66    } else {
  67       /* when not mipmapping, we need to set max/min lod so that always
  68        * lowest LOD is selected */
  69       cs->min_lod = cs->max_lod = etna_float_to_fixp55(ss->min_lod);
  70    }
  71
  72    return cs;
  73 }
  74
  75 static void
  76 etna_bind_sampler_states(struct pipe_context *pctx, enum pipe_shader_type shader,
  77                          unsigned start_slot, unsigned num_samplers,
  78                          void **samplers)
  79 {
  80    /* bind fragment sampler */
  81    struct etna_context *ctx = etna_context(pctx);
  82    int offset;
  83
  84    switch (shader) {
  85    case PIPE_SHADER_FRAGMENT:
  86       offset = 0;
  87       ctx->num_fragment_samplers = num_samplers;
  88       break;
  89    case PIPE_SHADER_VERTEX:
  90       offset = ctx->specs.vertex_sampler_offset;
  91       break;
  92    default:
  93       assert(!"Invalid shader");
  94       return;
  95    }
  96
  97    uint32_t mask = 1 << offset;
  98    for (int idx = 0; idx < num_samplers; ++idx, mask <<= 1) {
  99       ctx->sampler[offset + idx] = samplers[idx];
 100       if (samplers[idx])
 101          ctx->active_samplers |= mask;
 102       else
 103          ctx->active_samplers &= ~mask;
 104    }
 105
 106    ctx->dirty |= ETNA_DIRTY_SAMPLERS;
 107 }
 108
 109 static void
 110 etna_delete_sampler_state(struct pipe_context *pctx, void *ss)
 111 {
 112    FREE(ss);
 113 }
 114
 115 static void
 116 etna_update_sampler_source(struct pipe_sampler_view *view)
 117 {
 118    struct etna_resource *base = etna_resource(view->texture);
 119    struct etna_resource *to = base, *from = base;
 120
 121    if (base->external && etna_resource_newer(etna_resource(base->external), base))
 122       from = etna_resource(base->external);
 123
 124    if (base->texture)
 125       to = etna_resource(base->texture);
 126
 127    if ((to != from) && etna_resource_older(to, from)) {
 128       etna_copy_resource(view->context, &to->base, &from->base, 0,
 129                          view->texture->last_level);
 130       to->seqno = from->seqno;
 131    } else if ((to == from) && etna_resource_needs_flush(to)) {
 132       /* Resolve TS if needed, remove when adding sampler TS */
 133       etna_copy_resource(view->context, &to->base, &from->base, 0,
 134                          view->texture->last_level);
 135       to->flush_seqno = from->seqno;
 136    }
 137 }
 138
 139 static bool
 140 etna_resource_sampler_compatible(struct etna_resource *res)
 141 {
 142    if (util_format_is_compressed(res->base.format))
 143       return true;
 144
 145    struct etna_screen *screen = etna_screen(res->base.screen);
 146    /* This GPU supports texturing from supertiled textures? */
 147    if (res->layout == ETNA_LAYOUT_SUPER_TILED && VIV_FEATURE(screen, chipMinorFeatures2, SUPERTILED_TEXTURE))
 148       return true;
 149
 150    /* TODO: LINEAR_TEXTURE_SUPPORT */
 151
 152    /* Otherwise, only support tiled layouts */
 153    if (res->layout != ETNA_LAYOUT_TILED)
 154       return false;
 155
 156    /* If we have HALIGN support, we can allow for the RS padding */
 157    if (VIV_FEATURE(screen, chipMinorFeatures1, TEXTURE_HALIGN))
 158       return true;
 159
 160    /* Non-HALIGN GPUs only accept 4x4 tile-aligned textures */
 161    if (res->halign != TEXTURE_HALIGN_FOUR)
 162       return false;
 163
 164    return true;
 165 }
 166
 167 static struct pipe_sampler_view *
 168 etna_create_sampler_view(struct pipe_context *pctx, struct pipe_resource *prsc,
 169                          const struct pipe_sampler_view *so)
 170 {
 171    struct etna_sampler_view *sv = CALLOC_STRUCT(etna_sampler_view);
 172    struct etna_resource *res = etna_resource(prsc);
 173    struct etna_context *ctx = etna_context(pctx);
 174    const uint32_t format = translate_texture_format(so->format);
 175    const bool ext = !!(format & EXT_FORMAT);
 176    const uint32_t swiz = get_texture_swiz(so->format, so->swizzle_r,
 177                                           so->swizzle_g, so->swizzle_b,
 178                                           so->swizzle_a);
 179
 180    if (!sv)
 181       return NULL;
 182
 183    if (!etna_resource_sampler_compatible(res)) {
 184       /* The original resource is not compatible with the sampler.
 185        * Allocate an appropriately tiled texture. */
 186       if (!res->texture) {
 187          struct pipe_resource templat = *prsc;
 188
 189          templat.bind &= ~(PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_RENDER_TARGET |
 190                            PIPE_BIND_BLENDABLE);
 191          res->texture =
 192             etna_resource_alloc(pctx->screen, ETNA_LAYOUT_TILED,
 193                                 DRM_FORMAT_MOD_LINEAR, &templat);
 194       }
 195
 196       if (!res->texture) {
 197          free(sv);
 198          return NULL;
 199       }
 200       res = etna_resource(res->texture);
 201    }
 202
 203    sv->base = *so;
 204    pipe_reference_init(&sv->base.reference, 1);
 205    sv->base.texture = NULL;
 206    pipe_resource_reference(&sv->base.texture, prsc);
 207    sv->base.context = pctx;
 208
 209    /* merged with sampler state */
 210    sv->TE_SAMPLER_CONFIG0 = COND(!ext, VIVS_TE_SAMPLER_CONFIG0_FORMAT(format));
 211    sv->TE_SAMPLER_CONFIG0_MASK = 0xffffffff;
 212
 213    switch (sv->base.target) {
 214    case PIPE_TEXTURE_1D:
 215       /* For 1D textures, we will have a height of 1, so we can use 2D
 216        * but set T wrap to repeat */
 217       sv->TE_SAMPLER_CONFIG0_MASK = ~VIVS_TE_SAMPLER_CONFIG0_VWRAP__MASK;
 218       sv->TE_SAMPLER_CONFIG0 |= VIVS_TE_SAMPLER_CONFIG0_VWRAP(TEXTURE_WRAPMODE_REPEAT);
 219       /* fallthrough */
 220    case PIPE_TEXTURE_2D:
 221    case PIPE_TEXTURE_RECT:
 222       sv->TE_SAMPLER_CONFIG0 |= VIVS_TE_SAMPLER_CONFIG0_TYPE(TEXTURE_TYPE_2D);
 223       break;
 224    case PIPE_TEXTURE_CUBE:
 225       sv->TE_SAMPLER_CONFIG0 |= VIVS_TE_SAMPLER_CONFIG0_TYPE(TEXTURE_TYPE_CUBE_MAP);
 226       break;
 227    default:
 228       BUG("Unhandled texture target");
 229       free(sv);
 230       return NULL;
 231    }
 232
 233    sv->TE_SAMPLER_CONFIG1 = COND(ext, VIVS_TE_SAMPLER_CONFIG1_FORMAT_EXT(format)) |
 234                             VIVS_TE_SAMPLER_CONFIG1_HALIGN(res->halign) | swiz;
 235    sv->TE_SAMPLER_SIZE = VIVS_TE_SAMPLER_SIZE_WIDTH(res->base.width0) |
 236                          VIVS_TE_SAMPLER_SIZE_HEIGHT(res->base.height0);
 237    sv->TE_SAMPLER_LOG_SIZE =
 238       VIVS_TE_SAMPLER_LOG_SIZE_WIDTH(etna_log2_fixp55(res->base.width0)) |
 239       VIVS_TE_SAMPLER_LOG_SIZE_HEIGHT(etna_log2_fixp55(res->base.height0));
 240
 241    /* Set up levels-of-detail */
 242    for (int lod = 0; lod <= res->base.last_level; ++lod) {
 243       sv->TE_SAMPLER_LOD_ADDR[lod].bo = res->bo;
 244       sv->TE_SAMPLER_LOD_ADDR[lod].offset = res->levels[lod].offset;
 245       sv->TE_SAMPLER_LOD_ADDR[lod].flags = ETNA_RELOC_READ;
 246    }
 247    sv->min_lod = sv->base.u.tex.first_level << 5;
 248    sv->max_lod = MIN2(sv->base.u.tex.last_level, res->base.last_level) << 5;
 249
 250    /* Workaround for npot textures -- it appears that only CLAMP_TO_EDGE is
 251     * supported when the appropriate capability is not set. */
 252    if (!ctx->specs.npot_tex_any_wrap &&
 253        (!util_is_power_of_two(res->base.width0) || !util_is_power_of_two(res->base.height0))) {
 254       sv->TE_SAMPLER_CONFIG0_MASK = ~(VIVS_TE_SAMPLER_CONFIG0_UWRAP__MASK |
 255                                       VIVS_TE_SAMPLER_CONFIG0_VWRAP__MASK);
 256       sv->TE_SAMPLER_CONFIG0 |=
 257          VIVS_TE_SAMPLER_CONFIG0_UWRAP(TEXTURE_WRAPMODE_CLAMP_TO_EDGE) |
 258          VIVS_TE_SAMPLER_CONFIG0_VWRAP(TEXTURE_WRAPMODE_CLAMP_TO_EDGE);
 259    }
 260
 261    return &sv->base;
 262 }
 263
 264 static void
 265 etna_sampler_view_destroy(struct pipe_context *pctx,
 266                           struct pipe_sampler_view *view)
 267 {
 268    pipe_resource_reference(&view->texture, NULL);
 269    FREE(view);
 270 }
 271
 272 static void
 273 set_sampler_views(struct etna_context *ctx, unsigned start, unsigned end,
 274                   unsigned nr, struct pipe_sampler_view **views)
 275 {
 276    unsigned i, j;
 277    uint32_t mask = 1 << start;
 278
 279    for (i = start, j = 0; j < nr; i++, j++, mask <<= 1) {
 280       pipe_sampler_view_reference(&ctx->sampler_view[i], views[j]);
 281       if (views[j])
 282          ctx->active_sampler_views |= mask;
 283       else
 284          ctx->active_sampler_views &= ~mask;
 285    }
 286
 287    for (; i < end; i++, mask <<= 1) {
 288       pipe_sampler_view_reference(&ctx->sampler_view[i], NULL);
 289       ctx->active_sampler_views &= ~mask;
 290    }
 291 }
 292
 293 static inline void
 294 etna_fragtex_set_sampler_views(struct etna_context *ctx, unsigned nr,
 295                                struct pipe_sampler_view **views)
 296 {
 297    unsigned start = 0;
 298    unsigned end = start + ctx->specs.fragment_sampler_count;
 299
 300    set_sampler_views(ctx, start, end, nr, views);
 301    ctx->num_fragment_sampler_views = nr;
 302 }
 303
 304
 305 static inline void
 306 etna_vertex_set_sampler_views(struct etna_context *ctx, unsigned nr,
 307                               struct pipe_sampler_view **views)
 308 {
 309    unsigned start = ctx->specs.vertex_sampler_offset;
 310    unsigned end = start + ctx->specs.vertex_sampler_count;
 311
 312    set_sampler_views(ctx, start, end, nr, views);
 313 }
 314
 315 static void
 316 etna_set_sampler_views(struct pipe_context *pctx, enum pipe_shader_type shader,
 317                        unsigned start_slot, unsigned num_views,
 318                        struct pipe_sampler_view **views)
 319 {
 320    struct etna_context *ctx = etna_context(pctx);
 321    assert(start_slot == 0);
 322
 323    ctx->dirty |= ETNA_DIRTY_SAMPLER_VIEWS | ETNA_DIRTY_TEXTURE_CACHES;
 324
 325    for (unsigned idx = 0; idx < num_views; ++idx) {
 326       if (views[idx])
 327          etna_update_sampler_source(views[idx]);
 328    }
 329
 330    switch (shader) {
 331    case PIPE_SHADER_FRAGMENT:
 332       etna_fragtex_set_sampler_views(ctx, num_views, views);
 333       break;
 334    case PIPE_SHADER_VERTEX:
 335       etna_vertex_set_sampler_views(ctx, num_views, views);
 336       break;
 337    default:;
 338    }
 339 }
 340
 341 static void
 342 etna_texture_barrier(struct pipe_context *pctx, unsigned flags)
 343 {
 344    struct etna_context *ctx = etna_context(pctx);
 345    /* clear color and texture cache to make sure that texture unit reads
 346     * what has been written */
 347    etna_set_state(ctx->stream, VIVS_GL_FLUSH_CACHE, VIVS_GL_FLUSH_CACHE_COLOR | VIVS_GL_FLUSH_CACHE_TEXTURE);
 348 }
 349
 350 void
 351 etna_texture_init(struct pipe_context *pctx)
 352 {
 353    pctx->create_sampler_state = etna_create_sampler_state;
 354    pctx->bind_sampler_states = etna_bind_sampler_states;
 355    pctx->delete_sampler_state = etna_delete_sampler_state;
 356    pctx->set_sampler_views = etna_set_sampler_views;
 357    pctx->create_sampler_view = etna_create_sampler_view;
 358    pctx->sampler_view_destroy = etna_sampler_view_destroy;
 359    pctx->texture_barrier = etna_texture_barrier;
 360 }