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    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    switch (texture->base.target) {
 128    case PIPE_TEXTURE_2D:
 129    case PIPE_TEXTURE_RECT:
 130       desc->texture_type = LIMA_TEXTURE_TYPE_2D;
 131       break;
 132    case PIPE_TEXTURE_CUBE:
 133       desc->texture_type = LIMA_TEXTURE_TYPE_CUBE;
 134       break;
 135    default:
 136       break;
 137    }
 138
 139    if (!sampler->base.normalized_coords)
 140       desc->unnorm_coords = 1;
 141
 142    first_level = texture->base.u.tex.first_level;
 143    last_level = texture->base.u.tex.last_level;
 144    if (last_level - first_level >= LIMA_MAX_MIP_LEVELS)
 145       last_level = first_level + LIMA_MAX_MIP_LEVELS - 1;
 146
 147    desc->miplevels = (last_level - first_level);
 148
 149    switch (sampler->base.min_mip_filter) {
 150       case PIPE_TEX_MIPFILTER_LINEAR:
 151          desc->min_mipfilter_1 = 0;
 152          desc->min_mipfilter_2 = 3;
 153          break;
 154       case PIPE_TEX_MIPFILTER_NEAREST:
 155          desc->min_mipfilter_1 = 0x1ff;
 156          desc->min_mipfilter_2 = 0;
 157          break;
 158       case PIPE_TEX_MIPFILTER_NONE:
 159       default:
 160          break;
 161    }
 162
 163    switch (sampler->base.mag_img_filter) {
 164    case PIPE_TEX_FILTER_LINEAR:
 165       desc->mag_img_filter_nearest = 0;
 166       break;
 167    case PIPE_TEX_FILTER_NEAREST:
 168    default:
 169       desc->mag_img_filter_nearest = 1;
 170       break;
 171    }
 172
 173    switch (sampler->base.min_img_filter) {
 174       break;
 175    case PIPE_TEX_FILTER_LINEAR:
 176       desc->min_img_filter_nearest = 0;
 177       break;
 178    case PIPE_TEX_FILTER_NEAREST:
 179    default:
 180       desc->min_img_filter_nearest = 1;
 181       break;
 182    }
 183
 184    /* Only clamp, clamp to edge, repeat and mirror repeat are supported */
 185    switch (sampler->base.wrap_s) {
 186    case PIPE_TEX_WRAP_CLAMP:
 187       desc->wrap_s_clamp = 1;
 188       break;
 189    case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
 190    case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
 191       desc->wrap_s_clamp_to_edge = 1;
 192       break;
 193    case PIPE_TEX_WRAP_MIRROR_REPEAT:
 194       desc->wrap_s_mirror_repeat = 1;
 195       break;
 196    case PIPE_TEX_WRAP_REPEAT:
 197    default:
 198       break;
 199    }
 200
 201    /* Only clamp, clamp to edge, repeat and mirror repeat are supported */
 202    switch (sampler->base.wrap_t) {
 203    case PIPE_TEX_WRAP_CLAMP:
 204       desc->wrap_t_clamp = 1;
 205       break;
 206    case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
 207    case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
 208       desc->wrap_t_clamp_to_edge = 1;
 209       break;
 210    case PIPE_TEX_WRAP_MIRROR_REPEAT:
 211       desc->wrap_t_mirror_repeat = 1;
 212       break;
 213    case PIPE_TEX_WRAP_REPEAT:
 214    default:
 215       break;
 216    }
 217
 218    lima_texture_desc_set_res(ctx, desc, texture->base.texture,
 219                              first_level, last_level);
 220 }
 221
 222 static unsigned
 223 lima_calc_tex_desc_size(struct lima_sampler_view *texture)
 224 {
 225    unsigned size = offsetof(lima_tex_desc, va);
 226    unsigned va_bit_size;
 227    unsigned first_level = texture->base.u.tex.first_level;
 228    unsigned last_level = texture->base.u.tex.last_level;
 229
 230    if (last_level - first_level >= LIMA_MAX_MIP_LEVELS)
 231       last_level = first_level + LIMA_MAX_MIP_LEVELS - 1;
 232
 233    va_bit_size = VA_BIT_OFFSET + VA_BIT_SIZE * (last_level - first_level + 1);
 234    size += (va_bit_size + 7) >> 3;
 235    size = align(size, lima_min_tex_desc_size);
 236
 237    return size;
 238 }
 239
 240 void
 241 lima_update_textures(struct lima_context *ctx)
 242 {
 243    struct lima_texture_stateobj *lima_tex = &ctx->tex_stateobj;
 244
 245    assert (lima_tex->num_samplers <= 16);
 246
 247    /* Nothing to do - we have no samplers or textures */
 248    if (!lima_tex->num_samplers || !lima_tex->num_textures)
 249       return;
 250
 251    unsigned size = lima_tex_list_size;
 252    for (int i = 0; i < lima_tex->num_samplers; i++) {
 253       struct lima_sampler_view *texture = lima_sampler_view(lima_tex->textures[i]);
 254       size += lima_calc_tex_desc_size(texture);
 255    }
 256
 257    uint32_t *descs =
 258       lima_ctx_buff_alloc(ctx, lima_ctx_buff_pp_tex_desc, size, true);
 259
 260    off_t offset = lima_tex_list_size;
 261    for (int i = 0; i < lima_tex->num_samplers; i++) {
 262       struct lima_sampler_state *sampler = lima_sampler_state(lima_tex->samplers[i]);
 263       struct lima_sampler_view *texture = lima_sampler_view(lima_tex->textures[i]);
 264       unsigned desc_size = lima_calc_tex_desc_size(texture);
 265
 266       descs[i] = lima_ctx_buff_va(ctx, lima_ctx_buff_pp_tex_desc,
 267                                   LIMA_CTX_BUFF_SUBMIT_PP) + offset;
 268       lima_update_tex_desc(ctx, sampler, texture, (void *)descs + offset, desc_size);
 269       offset += desc_size;
 270    }
 271
 272    lima_dump_command_stream_print(
 273       descs, size, false, "add textures_desc at va %x\n",
 274       lima_ctx_buff_va(ctx, lima_ctx_buff_pp_tex_desc, 0));
 275 }