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].width;
  93          desc->has_stride = 1;
  94       }
  95       layout = 0;
  96    }
  97
  98    lima_submit_add_bo(ctx->pp_submit, lima_res->bo, LIMA_SUBMIT_BO_READ);
  99
 100    uint32_t base_va = lima_res->bo->va;
 101
 102    /* attach first level */
 103    uint32_t first_va = base_va + lima_res->levels[first_level].offset;
 104    desc->va_s.va_0 = first_va >> 6;
 105    desc->va_s.layout = layout;
 106
 107    /* Attach remaining levels.
 108     * Each subsequent mipmap address is specified using the 26 msbs.
 109     * These addresses are then packed continuously in memory */
 110    for (i = 1; i <= (last_level - first_level); i++) {
 111       uint32_t address = base_va + lima_res->levels[first_level + i].offset;
 112       lima_texture_desc_set_va(desc, i, address);
 113    }
 114 }
 115
 116 static void
 117 lima_update_tex_desc(struct lima_context *ctx, struct lima_sampler_state *sampler,
 118                      struct lima_sampler_view *texture, void *pdesc,
 119                      unsigned desc_size)
 120 {
 121    lima_tex_desc *desc = pdesc;
 122    unsigned first_level;
 123    unsigned last_level;
 124
 125    memset(desc, 0, desc_size);
 126
 127    /* 2D texture */
 128    desc->texture_2d = 1;
 129
 130    first_level = texture->base.u.tex.first_level;
 131    last_level = texture->base.u.tex.last_level;
 132    if (last_level - first_level >= LIMA_MAX_MIP_LEVELS)
 133       last_level = first_level + LIMA_MAX_MIP_LEVELS - 1;
 134
 135    desc->miplevels = (last_level - first_level);
 136
 137    switch (sampler->base.min_mip_filter) {
 138       case PIPE_TEX_MIPFILTER_LINEAR:
 139          desc->min_mipfilter_1 = 0;
 140          desc->min_mipfilter_2 = 3;
 141          break;
 142       case PIPE_TEX_MIPFILTER_NEAREST:
 143          desc->min_mipfilter_1 = 0x1ff;
 144          desc->min_mipfilter_2 = 0;
 145          break;
 146       case PIPE_TEX_MIPFILTER_NONE:
 147       default:
 148          break;
 149    }
 150
 151    switch (sampler->base.mag_img_filter) {
 152    case PIPE_TEX_FILTER_LINEAR:
 153       desc->mag_img_filter_nearest = 0;
 154       break;
 155    case PIPE_TEX_FILTER_NEAREST:
 156    default:
 157       desc->mag_img_filter_nearest = 1;
 158       break;
 159    }
 160
 161    switch (sampler->base.min_img_filter) {
 162       break;
 163    case PIPE_TEX_FILTER_LINEAR:
 164       desc->min_img_filter_nearest = 0;
 165       break;
 166    case PIPE_TEX_FILTER_NEAREST:
 167    default:
 168       desc->min_img_filter_nearest = 1;
 169       break;
 170    }
 171
 172    /* Only clamp, clamp to edge, repeat and mirror repeat are supported */
 173    switch (sampler->base.wrap_s) {
 174    case PIPE_TEX_WRAP_CLAMP:
 175       desc->wrap_s_clamp = 1;
 176       break;
 177    case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
 178    case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
 179       desc->wrap_s_clamp_to_edge = 1;
 180       break;
 181    case PIPE_TEX_WRAP_MIRROR_REPEAT:
 182       desc->wrap_s_mirror_repeat = 1;
 183       break;
 184    case PIPE_TEX_WRAP_REPEAT:
 185    default:
 186       break;
 187    }
 188
 189    /* Only clamp, clamp to edge, repeat and mirror repeat are supported */
 190    switch (sampler->base.wrap_t) {
 191    case PIPE_TEX_WRAP_CLAMP:
 192       desc->wrap_t_clamp = 1;
 193       break;
 194    case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
 195    case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
 196       desc->wrap_t_clamp_to_edge = 1;
 197       break;
 198    case PIPE_TEX_WRAP_MIRROR_REPEAT:
 199       desc->wrap_t_mirror_repeat = 1;
 200       break;
 201    case PIPE_TEX_WRAP_REPEAT:
 202    default:
 203       break;
 204    }
 205
 206    lima_texture_desc_set_res(ctx, desc, texture->base.texture,
 207                              first_level, last_level);
 208 }
 209
 210 static unsigned
 211 lima_calc_tex_desc_size(struct lima_sampler_view *texture)
 212 {
 213    unsigned size = offsetof(lima_tex_desc, va);
 214    unsigned va_bit_size;
 215    unsigned first_level = texture->base.u.tex.first_level;
 216    unsigned last_level = texture->base.u.tex.last_level;
 217
 218    if (last_level - first_level >= LIMA_MAX_MIP_LEVELS)
 219       last_level = first_level + LIMA_MAX_MIP_LEVELS - 1;
 220
 221    va_bit_size = VA_BIT_OFFSET + VA_BIT_SIZE * (last_level - first_level + 1);
 222    size += (va_bit_size + 7) >> 3;
 223    size = align(size, lima_min_tex_desc_size);
 224
 225    return size;
 226 }
 227
 228 void
 229 lima_update_textures(struct lima_context *ctx)
 230 {
 231    struct lima_texture_stateobj *lima_tex = &ctx->tex_stateobj;
 232
 233    assert (lima_tex->num_samplers <= 16);
 234
 235    /* Nothing to do - we have no samplers or textures */
 236    if (!lima_tex->num_samplers || !lima_tex->num_textures)
 237       return;
 238
 239    unsigned size = lima_tex_list_size;
 240    for (int i = 0; i < lima_tex->num_samplers; i++) {
 241       struct lima_sampler_view *texture = lima_sampler_view(lima_tex->textures[i]);
 242       size += lima_calc_tex_desc_size(texture);
 243    }
 244
 245    uint32_t *descs =
 246       lima_ctx_buff_alloc(ctx, lima_ctx_buff_pp_tex_desc, size, true);
 247
 248    off_t offset = lima_tex_list_size;
 249    for (int i = 0; i < lima_tex->num_samplers; i++) {
 250       struct lima_sampler_state *sampler = lima_sampler_state(lima_tex->samplers[i]);
 251       struct lima_sampler_view *texture = lima_sampler_view(lima_tex->textures[i]);
 252       unsigned desc_size = lima_calc_tex_desc_size(texture);
 253
 254       descs[i] = lima_ctx_buff_va(ctx, lima_ctx_buff_pp_tex_desc,
 255                                   LIMA_CTX_BUFF_SUBMIT_PP) + offset;
 256       lima_update_tex_desc(ctx, sampler, texture, (void *)descs + offset, desc_size);
 257       offset += desc_size;
 258    }
 259
 260    lima_dump_command_stream_print(
 261       descs, size, false, "add textures_desc at va %x\n",
 262       lima_ctx_buff_va(ctx, lima_ctx_buff_pp_tex_desc, 0));
 263 }