src/gallium/drivers/lima/lima_texture.c

   1 /*
   2  * Copyright (c) 2011-2013 Luc Verhaegen <libv@skynet.be>
   3  * Copyright (c) 2018-2019 Lima Project
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sub license,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the
  13  * next paragraph) shall be included in all copies or substantial portions
  14  * of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  *
  24  */
  25
  26 #include "util/u_memory.h"
  27 #include "util/u_upload_mgr.h"
  28 #include "util/u_math.h"
  29 #include "util/u_debug.h"
  30 #include "util/u_transfer.h"
  31
  32 #include "lima_bo.h"
  33 #include "lima_context.h"
  34 #include "lima_screen.h"
  35 #include "lima_texture.h"
  36 #include "lima_resource.h"
  37 #include "lima_submit.h"
  38 #include "lima_util.h"
  39 #include "lima_format.h"
  40
  41 #include <drm-uapi/lima_drm.h>
  42
  43
  44 #define lima_tex_list_size 64
  45
  46 static_assert(offsetof(lima_tex_desc, va) == 24, "lima_tex_desc->va offset isn't 24");
  47
  48
  49 static void
  50 lima_texture_desc_set_va(lima_tex_desc *desc,
  51                          int idx,
  52                          uint32_t va)
  53 {
  54    unsigned va_bit_idx = VA_BIT_OFFSET + (VA_BIT_SIZE * idx);
  55    unsigned va_idx = va_bit_idx / 32;
  56    va_bit_idx %= 32;
  57
  58    va >>= 6;
  59
  60    desc->va[va_idx] |= va << va_bit_idx;
  61    if (va_bit_idx <= 6)
  62       return;
  63    desc->va[va_idx + 1] |= va >> (32 - va_bit_idx);
  64 }
  65
  66 void
  67 lima_texture_desc_set_res(struct lima_context *ctx, lima_tex_desc *desc,
  68                           struct pipe_resource *prsc,
  69                           unsigned first_level, unsigned last_level)
  70 {
  71    unsigned width, height, layout, i;
  72    struct lima_resource *lima_res = lima_resource(prsc);
  73
  74    width = prsc->width0;
  75    height = prsc->height0;
  76    if (first_level != 0) {
  77       width = u_minify(width, first_level);
  78       height = u_minify(height, first_level);
  79    }
  80
  81    desc->format = lima_format_get_texel(prsc->format);
  82    desc->swap_r_b = lima_format_get_swap_rb(prsc->format);
  83    desc->width  = width;
  84    desc->height = height;
  85    desc->unknown_3_1 = 1;
  86
  87    if (lima_res->tiled)
  88       layout = 3;
  89    else {
  90       /* for padded linear texture */
  91       if (lima_res->levels[first_level].width != width) {
  92          desc->stride = lima_res->levels[first_level].stride;
  93          desc->has_stride = 1;
  94       }
  95       layout = 0;
  96    }
  97
  98    uint32_t base_va = lima_res->bo->va;
  99
 100    /* attach first level */
 101    uint32_t first_va = base_va + lima_res->levels[first_level].offset;
 102    desc->va_s.va_0 = first_va >> 6;
 103    desc->va_s.layout = layout;
 104
 105    /* Attach remaining levels.
 106     * Each subsequent mipmap address is specified using the 26 msbs.
 107     * These addresses are then packed continuously in memory */
 108    for (i = 1; i <= (last_level - first_level); i++) {
 109       uint32_t address = base_va + lima_res->levels[first_level + i].offset;
 110       lima_texture_desc_set_va(desc, i, address);
 111    }
 112 }
 113
 114 static void
 115 lima_update_tex_desc(struct lima_context *ctx, struct lima_sampler_state *sampler,
 116                      struct lima_sampler_view *texture, void *pdesc,
 117                      unsigned desc_size)
 118 {
 119    /* unit is 1/16 since lod_bias is in fixed format */
 120    int lod_bias_delta = 0;
 121    lima_tex_desc *desc = pdesc;
 122    unsigned first_level;
 123    unsigned last_level;
 124    float max_lod;
 125
 126    memset(desc, 0, desc_size);
 127
 128    switch (texture->base.target) {
 129    case PIPE_TEXTURE_2D:
 130    case PIPE_TEXTURE_RECT:
 131       desc->texture_type = LIMA_TEXTURE_TYPE_2D;
 132       break;
 133    case PIPE_TEXTURE_CUBE:
 134       desc->texture_type = LIMA_TEXTURE_TYPE_CUBE;
 135       break;
 136    default:
 137       break;
 138    }
 139
 140    if (!sampler->base.normalized_coords)
 141       desc->unnorm_coords = 1;
 142
 143    first_level = texture->base.u.tex.first_level;
 144    last_level = texture->base.u.tex.last_level;
 145    if (last_level - first_level >= LIMA_MAX_MIP_LEVELS)
 146       last_level = first_level + LIMA_MAX_MIP_LEVELS - 1;
 147
 148    desc->min_lod = lima_float_to_fixed8(sampler->base.min_lod);
 149    max_lod = MIN2(sampler->base.max_lod, sampler->base.min_lod +
 150                                          (last_level - first_level));
 151    desc->max_lod = lima_float_to_fixed8(max_lod);
 152    desc->lod_bias = lima_float_to_fixed8(sampler->base.lod_bias);
 153
 154    switch (sampler->base.min_mip_filter) {
 155       case PIPE_TEX_MIPFILTER_LINEAR:
 156          desc->min_mipfilter_2 = 3;
 157          break;
 158       case PIPE_TEX_MIPFILTER_NEAREST:
 159          desc->min_mipfilter_2 = 0;
 160          break;
 161       case PIPE_TEX_MIPFILTER_NONE:
 162          desc->max_lod = desc->min_lod;
 163          break;
 164       default:
 165          break;
 166    }
 167
 168    switch (sampler->base.mag_img_filter) {
 169    case PIPE_TEX_FILTER_LINEAR:
 170       desc->mag_img_filter_nearest = 0;
 171       break;
 172    case PIPE_TEX_FILTER_NEAREST:
 173    default:
 174       desc->mag_img_filter_nearest = 1;
 175       break;
 176    }
 177
 178    switch (sampler->base.min_img_filter) {
 179       break;
 180    case PIPE_TEX_FILTER_LINEAR:
 181       desc->min_img_filter_nearest = 0;
 182       break;
 183    case PIPE_TEX_FILTER_NEAREST:
 184    default:
 185       lod_bias_delta = 8;
 186       desc->min_img_filter_nearest = 1;
 187       break;
 188    }
 189
 190    /* Only clamp, clamp to edge, repeat and mirror repeat are supported */
 191    switch (sampler->base.wrap_s) {
 192    case PIPE_TEX_WRAP_CLAMP:
 193       desc->wrap_s_clamp = 1;
 194       break;
 195    case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
 196    case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
 197       desc->wrap_s_clamp_to_edge = 1;
 198       break;
 199    case PIPE_TEX_WRAP_MIRROR_REPEAT:
 200       desc->wrap_s_mirror_repeat = 1;
 201       break;
 202    case PIPE_TEX_WRAP_REPEAT:
 203    default:
 204       break;
 205    }
 206
 207    /* Only clamp, clamp to edge, repeat and mirror repeat are supported */
 208    switch (sampler->base.wrap_t) {
 209    case PIPE_TEX_WRAP_CLAMP:
 210       desc->wrap_t_clamp = 1;
 211       break;
 212    case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
 213    case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
 214       desc->wrap_t_clamp_to_edge = 1;
 215       break;
 216    case PIPE_TEX_WRAP_MIRROR_REPEAT:
 217       desc->wrap_t_mirror_repeat = 1;
 218       break;
 219    case PIPE_TEX_WRAP_REPEAT:
 220    default:
 221       break;
 222    }
 223
 224    if (desc->min_img_filter_nearest && desc->mag_img_filter_nearest &&
 225        desc->min_mipfilter_2 == 0 &&
 226        (desc->min_lod != desc->max_lod))
 227      lod_bias_delta = -1;
 228
 229    desc->lod_bias += lod_bias_delta;
 230
 231    lima_texture_desc_set_res(ctx, desc, texture->base.texture,
 232                              first_level, last_level);
 233 }
 234
 235 static unsigned
 236 lima_calc_tex_desc_size(struct lima_sampler_view *texture)
 237 {
 238    unsigned size = offsetof(lima_tex_desc, va);
 239    unsigned va_bit_size;
 240    unsigned first_level = texture->base.u.tex.first_level;
 241    unsigned last_level = texture->base.u.tex.last_level;
 242
 243    if (last_level - first_level >= LIMA_MAX_MIP_LEVELS)
 244       last_level = first_level + LIMA_MAX_MIP_LEVELS - 1;
 245
 246    va_bit_size = VA_BIT_OFFSET + VA_BIT_SIZE * (last_level - first_level + 1);
 247    size += (va_bit_size + 7) >> 3;
 248    size = align(size, lima_min_tex_desc_size);
 249
 250    return size;
 251 }
 252
 253 void
 254 lima_update_textures(struct lima_context *ctx)
 255 {
 256    struct lima_texture_stateobj *lima_tex = &ctx->tex_stateobj;
 257
 258    assert (lima_tex->num_samplers <= 16);
 259
 260    /* Nothing to do - we have no samplers or textures */
 261    if (!lima_tex->num_samplers || !lima_tex->num_textures)
 262       return;
 263
 264    /* we always need to add texture bo to submit */
 265    for (int i = 0; i < lima_tex->num_samplers; i++) {
 266       struct lima_sampler_view *texture = lima_sampler_view(lima_tex->textures[i]);
 267       struct lima_resource *rsc = lima_resource(texture->base.texture);
 268       lima_submit_add_bo(ctx->pp_submit, rsc->bo, LIMA_SUBMIT_BO_READ);
 269    }
 270
 271    /* do not regenerate texture desc if no change */
 272    if (!(ctx->dirty & LIMA_CONTEXT_DIRTY_TEXTURES))
 273       return;
 274
 275    unsigned size = lima_tex_list_size;
 276    for (int i = 0; i < lima_tex->num_samplers; i++) {
 277       struct lima_sampler_view *texture = lima_sampler_view(lima_tex->textures[i]);
 278       size += lima_calc_tex_desc_size(texture);
 279    }
 280
 281    uint32_t *descs =
 282       lima_ctx_buff_alloc(ctx, lima_ctx_buff_pp_tex_desc, size);
 283
 284    off_t offset = lima_tex_list_size;
 285    for (int i = 0; i < lima_tex->num_samplers; i++) {
 286       struct lima_sampler_state *sampler = lima_sampler_state(lima_tex->samplers[i]);
 287       struct lima_sampler_view *texture = lima_sampler_view(lima_tex->textures[i]);
 288       unsigned desc_size = lima_calc_tex_desc_size(texture);
 289
 290       descs[i] = lima_ctx_buff_va(ctx, lima_ctx_buff_pp_tex_desc) + offset;
 291       lima_update_tex_desc(ctx, sampler, texture, (void *)descs + offset, desc_size);
 292       offset += desc_size;
 293    }
 294
 295    lima_dump_command_stream_print(
 296       descs, size, false, "add textures_desc at va %x\n",
 297       lima_ctx_buff_va(ctx, lima_ctx_buff_pp_tex_desc));
 298
 299    lima_dump_texture_descriptor(
 300       descs, size,
 301       lima_ctx_buff_va(ctx, lima_ctx_buff_pp_tex_desc) + lima_tex_list_size,
 302       lima_tex_list_size);
 303 }