src/gallium/drivers/vc5/vc5_uniforms.c

   1 /*
   2  * Copyright © 2014-2017 Broadcom
   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 (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * 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 NONINFRINGEMENT.  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 DEALINGS
  21  * IN THE SOFTWARE.
  22  */
  23
  24 #include "util/u_pack_color.h"
  25 #include "util/format_srgb.h"
  26
  27 #include "vc5_context.h"
  28 #include "compiler/v3d_compiler.h"
  29 #include "broadcom/cle/v3d_packet_v33_pack.h"
  30
  31 #if 0
  32
  33 #define SWIZ(x,y,z,w) {          \
  34         PIPE_SWIZZLE_##x, \
  35         PIPE_SWIZZLE_##y, \
  36         PIPE_SWIZZLE_##z, \
  37         PIPE_SWIZZLE_##w  \
  38 }
  39
  40 static void
  41 write_texture_border_color(struct vc5_job *job,
  42                            struct vc5_cl_out **uniforms,
  43                            struct vc5_texture_stateobj *texstate,
  44                            uint32_t unit)
  45 {
  46         struct pipe_sampler_state *sampler = texstate->samplers[unit];
  47         struct pipe_sampler_view *texture = texstate->textures[unit];
  48         struct vc5_resource *rsc = vc5_resource(texture->texture);
  49         union util_color uc;
  50
  51         const struct util_format_description *tex_format_desc =
  52                 util_format_description(texture->format);
  53
  54         float border_color[4];
  55         for (int i = 0; i < 4; i++)
  56                 border_color[i] = sampler->border_color.f[i];
  57         if (util_format_is_srgb(texture->format)) {
  58                 for (int i = 0; i < 3; i++)
  59                         border_color[i] =
  60                                 util_format_linear_to_srgb_float(border_color[i]);
  61         }
  62
  63         /* Turn the border color into the layout of channels that it would
  64          * have when stored as texture contents.
  65          */
  66         float storage_color[4];
  67         util_format_unswizzle_4f(storage_color,
  68                                  border_color,
  69                                  tex_format_desc->swizzle);
  70
  71         /* Now, pack so that when the vc5_format-sampled texture contents are
  72          * replaced with our border color, the vc5_get_format_swizzle()
  73          * swizzling will get the right channels.
  74          */
  75         if (util_format_is_depth_or_stencil(texture->format)) {
  76                 uc.ui[0] = util_pack_z(PIPE_FORMAT_Z24X8_UNORM,
  77                                        sampler->border_color.f[0]) << 8;
  78         } else {
  79                 switch (rsc->vc5_format) {
  80                 default:
  81                 case VC5_TEXTURE_TYPE_RGBA8888:
  82                         util_pack_color(storage_color,
  83                                         PIPE_FORMAT_R8G8B8A8_UNORM, &uc);
  84                         break;
  85                 case VC5_TEXTURE_TYPE_RGBA4444:
  86                         util_pack_color(storage_color,
  87                                         PIPE_FORMAT_A8B8G8R8_UNORM, &uc);
  88                         break;
  89                 case VC5_TEXTURE_TYPE_RGB565:
  90                         util_pack_color(storage_color,
  91                                         PIPE_FORMAT_B8G8R8A8_UNORM, &uc);
  92                         break;
  93                 case VC5_TEXTURE_TYPE_ALPHA:
  94                         uc.ui[0] = float_to_ubyte(storage_color[0]) << 24;
  95                         break;
  96                 case VC5_TEXTURE_TYPE_LUMALPHA:
  97                         uc.ui[0] = ((float_to_ubyte(storage_color[1]) << 24) |
  98                                     (float_to_ubyte(storage_color[0]) << 0));
  99                         break;
 100                 }
 101         }
 102
 103         cl_aligned_u32(uniforms, uc.ui[0]);
 104 }
 105 #endif
 106
 107 static uint32_t
 108 get_texrect_scale(struct vc5_texture_stateobj *texstate,
 109                   enum quniform_contents contents,
 110                   uint32_t data)
 111 {
 112         struct pipe_sampler_view *texture = texstate->textures[data];
 113         uint32_t dim;
 114
 115         if (contents == QUNIFORM_TEXRECT_SCALE_X)
 116                 dim = texture->texture->width0;
 117         else
 118                 dim = texture->texture->height0;
 119
 120         return fui(1.0f / dim);
 121 }
 122
 123 static uint32_t
 124 get_texture_size(struct vc5_texture_stateobj *texstate,
 125                  enum quniform_contents contents,
 126                  uint32_t data)
 127 {
 128         struct pipe_sampler_view *texture = texstate->textures[data];
 129
 130         switch (contents) {
 131         case QUNIFORM_TEXTURE_WIDTH:
 132                 return u_minify(texture->texture->width0,
 133                                 texture->u.tex.first_level);
 134         case QUNIFORM_TEXTURE_HEIGHT:
 135                 return u_minify(texture->texture->height0,
 136                                 texture->u.tex.first_level);
 137         case QUNIFORM_TEXTURE_DEPTH:
 138                 return u_minify(texture->texture->depth0,
 139                                 texture->u.tex.first_level);
 140         case QUNIFORM_TEXTURE_ARRAY_SIZE:
 141                 return texture->texture->array_size;
 142         case QUNIFORM_TEXTURE_LEVELS:
 143                 return (texture->u.tex.last_level -
 144                         texture->u.tex.first_level) + 1;
 145         default:
 146                 unreachable("Bad texture size field");
 147         }
 148 }
 149
 150 static struct vc5_bo *
 151 vc5_upload_ubo(struct vc5_context *vc5,
 152                struct vc5_compiled_shader *shader,
 153                const uint32_t *gallium_uniforms)
 154 {
 155         if (!shader->prog_data.base->ubo_size)
 156                 return NULL;
 157
 158         struct vc5_bo *ubo = vc5_bo_alloc(vc5->screen,
 159                                           shader->prog_data.base->ubo_size,
 160                                           "ubo");
 161         void *data = vc5_bo_map(ubo);
 162         for (uint32_t i = 0; i < shader->prog_data.base->num_ubo_ranges; i++) {
 163                 memcpy(data + shader->prog_data.base->ubo_ranges[i].dst_offset,
 164                        ((const void *)gallium_uniforms +
 165                         shader->prog_data.base->ubo_ranges[i].src_offset),
 166                        shader->prog_data.base->ubo_ranges[i].size);
 167         }
 168
 169         return ubo;
 170 }
 171
 172 /**
 173  *  Writes the P0 (CFG_MODE=1) texture parameter.
 174  *
 175  * Some bits of this field are dependent on the type of sample being done by
 176  * the shader, while other bits are dependent on the sampler state.  We OR the
 177  * two together here.
 178  */
 179 static void
 180 write_texture_p0(struct vc5_job *job,
 181                  struct vc5_cl_out **uniforms,
 182                  struct vc5_texture_stateobj *texstate,
 183                  uint32_t unit,
 184                  uint32_t shader_data)
 185 {
 186         struct pipe_sampler_state *psampler = texstate->samplers[unit];
 187         struct vc5_sampler_state *sampler = vc5_sampler_state(psampler);
 188
 189         cl_aligned_u32(uniforms, shader_data | sampler->p0);
 190 }
 191
 192 static void
 193 write_texture_p1(struct vc5_job *job,
 194                  struct vc5_cl_out **uniforms,
 195                  struct vc5_texture_stateobj *texstate,
 196                  uint32_t unit)
 197 {
 198         struct pipe_sampler_view *psview = texstate->textures[unit];
 199         struct vc5_sampler_view *sview = vc5_sampler_view(psview);
 200
 201         struct V3D33_TEXTURE_UNIFORM_PARAMETER_1_CFG_MODE1 unpacked = {
 202                 .texture_state_record_base_address = texstate->texture_state[unit],
 203         };
 204
 205         uint32_t packed;
 206         V3D33_TEXTURE_UNIFORM_PARAMETER_1_CFG_MODE1_pack(&job->indirect,
 207                                                          (uint8_t *)&packed,
 208                                                          &unpacked);
 209
 210         cl_aligned_u32(uniforms, packed | sview->p1);
 211 }
 212
 213 struct vc5_cl_reloc
 214 vc5_write_uniforms(struct vc5_context *vc5, struct vc5_compiled_shader *shader,
 215                    struct vc5_constbuf_stateobj *cb,
 216                    struct vc5_texture_stateobj *texstate)
 217 {
 218         struct v3d_uniform_list *uinfo = &shader->prog_data.base->uniforms;
 219         struct vc5_job *job = vc5->job;
 220         const uint32_t *gallium_uniforms = cb->cb[0].user_buffer;
 221         struct vc5_bo *ubo = vc5_upload_ubo(vc5, shader, gallium_uniforms);
 222
 223         /* We always need to return some space for uniforms, because the HW
 224          * will be prefetching, even if we don't read any in the program.
 225          */
 226         vc5_cl_ensure_space(&job->indirect, MAX2(uinfo->count, 1) * 4, 4);
 227
 228         struct vc5_cl_reloc uniform_stream = cl_get_address(&job->indirect);
 229         vc5_bo_reference(uniform_stream.bo);
 230
 231         struct vc5_cl_out *uniforms =
 232                 cl_start(&job->indirect);
 233
 234         for (int i = 0; i < uinfo->count; i++) {
 235
 236                 switch (uinfo->contents[i]) {
 237                 case QUNIFORM_CONSTANT:
 238                         cl_aligned_u32(&uniforms, uinfo->data[i]);
 239                         break;
 240                 case QUNIFORM_UNIFORM:
 241                         cl_aligned_u32(&uniforms,
 242                                        gallium_uniforms[uinfo->data[i]]);
 243                         break;
 244                 case QUNIFORM_VIEWPORT_X_SCALE:
 245                         cl_aligned_f(&uniforms, vc5->viewport.scale[0] * 256.0f);
 246                         break;
 247                 case QUNIFORM_VIEWPORT_Y_SCALE:
 248                         cl_aligned_f(&uniforms, vc5->viewport.scale[1] * 256.0f);
 249                         break;
 250
 251                 case QUNIFORM_VIEWPORT_Z_OFFSET:
 252                         cl_aligned_f(&uniforms, vc5->viewport.translate[2]);
 253                         break;
 254                 case QUNIFORM_VIEWPORT_Z_SCALE:
 255                         cl_aligned_f(&uniforms, vc5->viewport.scale[2]);
 256                         break;
 257
 258                 case QUNIFORM_USER_CLIP_PLANE:
 259                         cl_aligned_f(&uniforms,
 260                                      vc5->clip.ucp[uinfo->data[i] / 4][uinfo->data[i] % 4]);
 261                         break;
 262
 263                 case QUNIFORM_TEXTURE_CONFIG_P1:
 264                         write_texture_p1(job, &uniforms, texstate,
 265                                          uinfo->data[i]);
 266                         break;
 267
 268 #if 0
 269                 case QUNIFORM_TEXTURE_FIRST_LEVEL:
 270                         write_texture_first_level(job, &uniforms, texstate,
 271                                                   uinfo->data[i]);
 272                         break;
 273 #endif
 274
 275                 case QUNIFORM_TEXRECT_SCALE_X:
 276                 case QUNIFORM_TEXRECT_SCALE_Y:
 277                         cl_aligned_u32(&uniforms,
 278                                        get_texrect_scale(texstate,
 279                                                          uinfo->contents[i],
 280                                                          uinfo->data[i]));
 281                         break;
 282
 283                 case QUNIFORM_TEXTURE_WIDTH:
 284                 case QUNIFORM_TEXTURE_HEIGHT:
 285                 case QUNIFORM_TEXTURE_DEPTH:
 286                 case QUNIFORM_TEXTURE_ARRAY_SIZE:
 287                 case QUNIFORM_TEXTURE_LEVELS:
 288                         cl_aligned_u32(&uniforms,
 289                                        get_texture_size(texstate,
 290                                                         uinfo->contents[i],
 291                                                         uinfo->data[i]));
 292                         break;
 293
 294                 case QUNIFORM_STENCIL:
 295                         cl_aligned_u32(&uniforms,
 296                                        vc5->zsa->stencil_uniforms[uinfo->data[i]] |
 297                                        (uinfo->data[i] <= 1 ?
 298                                         (vc5->stencil_ref.ref_value[uinfo->data[i]] << 8) :
 299                                         0));
 300                         break;
 301
 302                 case QUNIFORM_ALPHA_REF:
 303                         cl_aligned_f(&uniforms,
 304                                      vc5->zsa->base.alpha.ref_value);
 305                         break;
 306
 307                 case QUNIFORM_SAMPLE_MASK:
 308                         cl_aligned_u32(&uniforms, vc5->sample_mask);
 309                         break;
 310
 311                 case QUNIFORM_UBO_ADDR:
 312                         if (uinfo->data[i] == 0) {
 313                                 cl_aligned_reloc(&job->indirect, &uniforms,
 314                                                  ubo, 0);
 315                         } else {
 316                                 int ubo_index = uinfo->data[i];
 317                                 struct vc5_resource *rsc =
 318                                         vc5_resource(cb->cb[ubo_index].buffer);
 319
 320                                 cl_aligned_reloc(&job->indirect, &uniforms,
 321                                                  rsc->bo,
 322                                                  cb->cb[ubo_index].buffer_offset);
 323                         }
 324                         break;
 325
 326                 case QUNIFORM_TEXTURE_FIRST_LEVEL:
 327                         cl_aligned_f(&uniforms,
 328                                      texstate->textures[uinfo->data[i]]->u.tex.first_level);
 329                         break;
 330
 331                 case QUNIFORM_TEXTURE_BORDER_COLOR:
 332                         /* XXX */
 333                         break;
 334
 335                 default:
 336                         assert(quniform_contents_is_texture_p0(uinfo->contents[i]));
 337
 338                         write_texture_p0(job, &uniforms, texstate,
 339                                          uinfo->contents[i] -
 340                                          QUNIFORM_TEXTURE_CONFIG_P0_0,
 341                                          uinfo->data[i]);
 342                         break;
 343
 344                 }
 345 #if 0
 346                 uint32_t written_val = *((uint32_t *)uniforms - 1);
 347                 fprintf(stderr, "shader %p[%d]: 0x%08x / 0x%08x (%f)\n",
 348                         shader, i, __gen_address_offset(&uniform_stream) + i * 4,
 349                         written_val, uif(written_val));
 350 #endif
 351         }
 352
 353         cl_end(&job->indirect, uniforms);
 354
 355         vc5_bo_unreference(&ubo);
 356
 357         return uniform_stream;
 358 }
 359
 360 void
 361 vc5_set_shader_uniform_dirty_flags(struct vc5_compiled_shader *shader)
 362 {
 363         uint32_t dirty = 0;
 364
 365         for (int i = 0; i < shader->prog_data.base->uniforms.count; i++) {
 366                 switch (shader->prog_data.base->uniforms.contents[i]) {
 367                 case QUNIFORM_CONSTANT:
 368                         break;
 369                 case QUNIFORM_UNIFORM:
 370                 case QUNIFORM_UBO_ADDR:
 371                         dirty |= VC5_DIRTY_CONSTBUF;
 372                         break;
 373
 374                 case QUNIFORM_VIEWPORT_X_SCALE:
 375                 case QUNIFORM_VIEWPORT_Y_SCALE:
 376                 case QUNIFORM_VIEWPORT_Z_OFFSET:
 377                 case QUNIFORM_VIEWPORT_Z_SCALE:
 378                         dirty |= VC5_DIRTY_VIEWPORT;
 379                         break;
 380
 381                 case QUNIFORM_USER_CLIP_PLANE:
 382                         dirty |= VC5_DIRTY_CLIP;
 383                         break;
 384
 385                 case QUNIFORM_TEXTURE_CONFIG_P1:
 386                 case QUNIFORM_TEXTURE_BORDER_COLOR:
 387                 case QUNIFORM_TEXTURE_FIRST_LEVEL:
 388                 case QUNIFORM_TEXRECT_SCALE_X:
 389                 case QUNIFORM_TEXRECT_SCALE_Y:
 390                 case QUNIFORM_TEXTURE_WIDTH:
 391                 case QUNIFORM_TEXTURE_HEIGHT:
 392                 case QUNIFORM_TEXTURE_DEPTH:
 393                 case QUNIFORM_TEXTURE_ARRAY_SIZE:
 394                 case QUNIFORM_TEXTURE_LEVELS:
 395                         /* We could flag this on just the stage we're
 396                          * compiling for, but it's not passed in.
 397                          */
 398                         dirty |= VC5_DIRTY_FRAGTEX | VC5_DIRTY_VERTTEX;
 399                         break;
 400
 401                 case QUNIFORM_STENCIL:
 402                 case QUNIFORM_ALPHA_REF:
 403                         dirty |= VC5_DIRTY_ZSA;
 404                         break;
 405
 406                 case QUNIFORM_SAMPLE_MASK:
 407                         dirty |= VC5_DIRTY_SAMPLE_MASK;
 408                         break;
 409
 410                 default:
 411                         assert(quniform_contents_is_texture_p0(shader->prog_data.base->uniforms.contents[i]));
 412                         dirty |= VC5_DIRTY_FRAGTEX | VC5_DIRTY_VERTTEX;
 413                         break;
 414                 }
 415         }
 416
 417         shader->uniform_dirty_bits = dirty;
 418 }