src/gallium/drivers/vc4/vc4_uniforms.c

   1 /*
   2  * Copyright © 2014-2015 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 "vc4_context.h"
  28 #include "vc4_qir.h"
  29
  30 static void
  31 write_texture_p0(struct vc4_context *vc4,
  32                  struct vc4_cl_out **uniforms,
  33                  struct vc4_texture_stateobj *texstate,
  34                  uint32_t unit)
  35 {
  36         struct vc4_sampler_view *sview =
  37                 vc4_sampler_view(texstate->textures[unit]);
  38         struct vc4_resource *rsc = vc4_resource(sview->base.texture);
  39
  40         cl_reloc(vc4, &vc4->uniforms, uniforms, rsc->bo, sview->texture_p0);
  41 }
  42
  43 static void
  44 write_texture_p1(struct vc4_context *vc4,
  45                  struct vc4_cl_out **uniforms,
  46                  struct vc4_texture_stateobj *texstate,
  47                  uint32_t unit)
  48 {
  49         struct vc4_sampler_view *sview =
  50                 vc4_sampler_view(texstate->textures[unit]);
  51         struct vc4_sampler_state *sampler =
  52                 vc4_sampler_state(texstate->samplers[unit]);
  53
  54         cl_aligned_u32(uniforms, sview->texture_p1 | sampler->texture_p1);
  55 }
  56
  57 static void
  58 write_texture_p2(struct vc4_context *vc4,
  59                  struct vc4_cl_out **uniforms,
  60                  struct vc4_texture_stateobj *texstate,
  61                  uint32_t data)
  62 {
  63         uint32_t unit = data & 0xffff;
  64         struct pipe_sampler_view *texture = texstate->textures[unit];
  65         struct vc4_resource *rsc = vc4_resource(texture->texture);
  66
  67         cl_aligned_u32(uniforms,
  68                VC4_SET_FIELD(VC4_TEX_P2_PTYPE_CUBE_MAP_STRIDE,
  69                              VC4_TEX_P2_PTYPE) |
  70                VC4_SET_FIELD(rsc->cube_map_stride >> 12, VC4_TEX_P2_CMST) |
  71                VC4_SET_FIELD((data >> 16) & 1, VC4_TEX_P2_BSLOD));
  72 }
  73
  74 static void
  75 write_texture_first_level(struct vc4_context *vc4,
  76                           struct vc4_cl_out **uniforms,
  77                           struct vc4_texture_stateobj *texstate,
  78                           uint32_t data)
  79 {
  80         uint32_t unit = data & 0xffff;
  81         struct pipe_sampler_view *texture = texstate->textures[unit];
  82
  83         cl_aligned_f(uniforms, texture->u.tex.first_level);
  84 }
  85
  86 static void
  87 write_texture_msaa_addr(struct vc4_context *vc4,
  88                  struct vc4_cl_out **uniforms,
  89                         struct vc4_texture_stateobj *texstate,
  90                         uint32_t unit)
  91 {
  92         struct pipe_sampler_view *texture = texstate->textures[unit];
  93         struct vc4_resource *rsc = vc4_resource(texture->texture);
  94
  95         cl_aligned_reloc(vc4, &vc4->uniforms, uniforms, rsc->bo, 0);
  96 }
  97
  98
  99 #define SWIZ(x,y,z,w) {          \
 100         PIPE_SWIZZLE_##x, \
 101         PIPE_SWIZZLE_##y, \
 102         PIPE_SWIZZLE_##z, \
 103         PIPE_SWIZZLE_##w  \
 104 }
 105
 106 static void
 107 write_texture_border_color(struct vc4_context *vc4,
 108                            struct vc4_cl_out **uniforms,
 109                            struct vc4_texture_stateobj *texstate,
 110                            uint32_t unit)
 111 {
 112         struct pipe_sampler_state *sampler = texstate->samplers[unit];
 113         struct pipe_sampler_view *texture = texstate->textures[unit];
 114         struct vc4_resource *rsc = vc4_resource(texture->texture);
 115         union util_color uc;
 116
 117         const struct util_format_description *tex_format_desc =
 118                 util_format_description(texture->format);
 119
 120         float border_color[4];
 121         for (int i = 0; i < 4; i++)
 122                 border_color[i] = sampler->border_color.f[i];
 123         if (util_format_is_srgb(texture->format)) {
 124                 for (int i = 0; i < 3; i++)
 125                         border_color[i] =
 126                                 util_format_linear_to_srgb_float(border_color[i]);
 127         }
 128
 129         /* Turn the border color into the layout of channels that it would
 130          * have when stored as texture contents.
 131          */
 132         float storage_color[4];
 133         util_format_unswizzle_4f(storage_color,
 134                                  border_color,
 135                                  tex_format_desc->swizzle);
 136
 137         /* Now, pack so that when the vc4_format-sampled texture contents are
 138          * replaced with our border color, the vc4_get_format_swizzle()
 139          * swizzling will get the right channels.
 140          */
 141         if (util_format_is_depth_or_stencil(texture->format)) {
 142                 uc.ui[0] = util_pack_z(PIPE_FORMAT_Z24X8_UNORM,
 143                                        sampler->border_color.f[0]) << 8;
 144         } else {
 145                 switch (rsc->vc4_format) {
 146                 default:
 147                 case VC4_TEXTURE_TYPE_RGBA8888:
 148                         util_pack_color(storage_color,
 149                                         PIPE_FORMAT_R8G8B8A8_UNORM, &uc);
 150                         break;
 151                 case VC4_TEXTURE_TYPE_RGBA4444:
 152                         util_pack_color(storage_color,
 153                                         PIPE_FORMAT_A8B8G8R8_UNORM, &uc);
 154                         break;
 155                 case VC4_TEXTURE_TYPE_RGB565:
 156                         util_pack_color(storage_color,
 157                                         PIPE_FORMAT_B8G8R8A8_UNORM, &uc);
 158                         break;
 159                 case VC4_TEXTURE_TYPE_ALPHA:
 160                         uc.ui[0] = float_to_ubyte(storage_color[0]) << 24;
 161                         break;
 162                 case VC4_TEXTURE_TYPE_LUMALPHA:
 163                         uc.ui[0] = ((float_to_ubyte(storage_color[1]) << 24) |
 164                                     (float_to_ubyte(storage_color[0]) << 0));
 165                         break;
 166                 }
 167         }
 168
 169         cl_aligned_u32(uniforms, uc.ui[0]);
 170 }
 171
 172 static uint32_t
 173 get_texrect_scale(struct vc4_texture_stateobj *texstate,
 174                   enum quniform_contents contents,
 175                   uint32_t data)
 176 {
 177         struct pipe_sampler_view *texture = texstate->textures[data];
 178         uint32_t dim;
 179
 180         if (contents == QUNIFORM_TEXRECT_SCALE_X)
 181                 dim = texture->texture->width0;
 182         else
 183                 dim = texture->texture->height0;
 184
 185         return fui(1.0f / dim);
 186 }
 187
 188 static struct vc4_bo *
 189 vc4_upload_ubo(struct vc4_context *vc4,
 190                struct vc4_compiled_shader *shader,
 191                const uint32_t *gallium_uniforms)
 192 {
 193         if (!shader->ubo_size)
 194                 return NULL;
 195
 196         struct vc4_bo *ubo = vc4_bo_alloc(vc4->screen, shader->ubo_size, "ubo");
 197         void *data = vc4_bo_map(ubo);
 198         for (uint32_t i = 0; i < shader->num_ubo_ranges; i++) {
 199                 memcpy(data + shader->ubo_ranges[i].dst_offset,
 200                        ((const void *)gallium_uniforms +
 201                         shader->ubo_ranges[i].src_offset),
 202                        shader->ubo_ranges[i].size);
 203         }
 204
 205         return ubo;
 206 }
 207
 208 void
 209 vc4_write_uniforms(struct vc4_context *vc4, struct vc4_compiled_shader *shader,
 210                    struct vc4_constbuf_stateobj *cb,
 211                    struct vc4_texture_stateobj *texstate)
 212 {
 213         struct vc4_shader_uniform_info *uinfo = &shader->uniforms;
 214         const uint32_t *gallium_uniforms = cb->cb[0].user_buffer;
 215         struct vc4_bo *ubo = vc4_upload_ubo(vc4, shader, gallium_uniforms);
 216
 217         cl_ensure_space(&vc4->uniforms, (uinfo->count +
 218                                          uinfo->num_texture_samples) * 4);
 219
 220         struct vc4_cl_out *uniforms =
 221                 cl_start_shader_reloc(&vc4->uniforms,
 222                                       uinfo->num_texture_samples);
 223
 224         for (int i = 0; i < uinfo->count; i++) {
 225
 226                 switch (uinfo->contents[i]) {
 227                 case QUNIFORM_CONSTANT:
 228                         cl_aligned_u32(&uniforms, uinfo->data[i]);
 229                         break;
 230                 case QUNIFORM_UNIFORM:
 231                         cl_aligned_u32(&uniforms,
 232                                        gallium_uniforms[uinfo->data[i]]);
 233                         break;
 234                 case QUNIFORM_VIEWPORT_X_SCALE:
 235                         cl_aligned_f(&uniforms, vc4->viewport.scale[0] * 16.0f);
 236                         break;
 237                 case QUNIFORM_VIEWPORT_Y_SCALE:
 238                         cl_aligned_f(&uniforms, vc4->viewport.scale[1] * 16.0f);
 239                         break;
 240
 241                 case QUNIFORM_VIEWPORT_Z_OFFSET:
 242                         cl_aligned_f(&uniforms, vc4->viewport.translate[2]);
 243                         break;
 244                 case QUNIFORM_VIEWPORT_Z_SCALE:
 245                         cl_aligned_f(&uniforms, vc4->viewport.scale[2]);
 246                         break;
 247
 248                 case QUNIFORM_USER_CLIP_PLANE:
 249                         cl_aligned_f(&uniforms,
 250                                      vc4->clip.ucp[uinfo->data[i] / 4][uinfo->data[i] % 4]);
 251                         break;
 252
 253                 case QUNIFORM_TEXTURE_CONFIG_P0:
 254                         write_texture_p0(vc4, &uniforms, texstate,
 255                                          uinfo->data[i]);
 256                         break;
 257
 258                 case QUNIFORM_TEXTURE_CONFIG_P1:
 259                         write_texture_p1(vc4, &uniforms, texstate,
 260                                          uinfo->data[i]);
 261                         break;
 262
 263                 case QUNIFORM_TEXTURE_CONFIG_P2:
 264                         write_texture_p2(vc4, &uniforms, texstate,
 265                                          uinfo->data[i]);
 266                         break;
 267
 268                 case QUNIFORM_TEXTURE_FIRST_LEVEL:
 269                         write_texture_first_level(vc4, &uniforms, texstate,
 270                                                   uinfo->data[i]);
 271                         break;
 272
 273                 case QUNIFORM_UBO_ADDR:
 274                         cl_aligned_reloc(vc4, &vc4->uniforms, &uniforms, ubo, 0);
 275                         break;
 276
 277                 case QUNIFORM_TEXTURE_MSAA_ADDR:
 278                         write_texture_msaa_addr(vc4, &uniforms,
 279                                                 texstate, uinfo->data[i]);
 280                         break;
 281
 282                 case QUNIFORM_TEXTURE_BORDER_COLOR:
 283                         write_texture_border_color(vc4, &uniforms,
 284                                                    texstate, uinfo->data[i]);
 285                         break;
 286
 287                 case QUNIFORM_TEXRECT_SCALE_X:
 288                 case QUNIFORM_TEXRECT_SCALE_Y:
 289                         cl_aligned_u32(&uniforms,
 290                                        get_texrect_scale(texstate,
 291                                                          uinfo->contents[i],
 292                                                          uinfo->data[i]));
 293                         break;
 294
 295                 case QUNIFORM_BLEND_CONST_COLOR_X:
 296                 case QUNIFORM_BLEND_CONST_COLOR_Y:
 297                 case QUNIFORM_BLEND_CONST_COLOR_Z:
 298                 case QUNIFORM_BLEND_CONST_COLOR_W:
 299                         cl_aligned_f(&uniforms,
 300                                      CLAMP(vc4->blend_color.f.color[uinfo->contents[i] -
 301                                                                     QUNIFORM_BLEND_CONST_COLOR_X],
 302                                            0, 1));
 303                         break;
 304
 305                 case QUNIFORM_BLEND_CONST_COLOR_RGBA: {
 306                         const uint8_t *format_swiz =
 307                                 vc4_get_format_swizzle(vc4->framebuffer.cbufs[0]->format);
 308                         uint32_t color = 0;
 309                         for (int i = 0; i < 4; i++) {
 310                                 if (format_swiz[i] >= 4)
 311                                         continue;
 312
 313                                 color |= (vc4->blend_color.ub[format_swiz[i]] <<
 314                                           (i * 8));
 315                         }
 316                         cl_aligned_u32(&uniforms, color);
 317                         break;
 318                 }
 319
 320                 case QUNIFORM_BLEND_CONST_COLOR_AAAA: {
 321                         uint8_t a = vc4->blend_color.ub[3];
 322                         cl_aligned_u32(&uniforms, ((a) |
 323                                                    (a << 8) |
 324                                                    (a << 16) |
 325                                                    (a << 24)));
 326                         break;
 327                 }
 328
 329                 case QUNIFORM_STENCIL:
 330                         cl_aligned_u32(&uniforms,
 331                                        vc4->zsa->stencil_uniforms[uinfo->data[i]] |
 332                                        (uinfo->data[i] <= 1 ?
 333                                         (vc4->stencil_ref.ref_value[uinfo->data[i]] << 8) :
 334                                         0));
 335                         break;
 336
 337                 case QUNIFORM_ALPHA_REF:
 338                         cl_aligned_f(&uniforms,
 339                                      vc4->zsa->base.alpha.ref_value);
 340                         break;
 341
 342                 case QUNIFORM_SAMPLE_MASK:
 343                         cl_aligned_u32(&uniforms, vc4->sample_mask);
 344                         break;
 345
 346                 case QUNIFORM_UNIFORMS_ADDRESS:
 347                         /* This will be filled in by the kernel. */
 348                         cl_aligned_u32(&uniforms, 0xd0d0d0d0);
 349                         break;
 350                 }
 351 #if 0
 352                 uint32_t written_val = *((uint32_t *)uniforms - 1);
 353                 fprintf(stderr, "%p: %d / 0x%08x (%f)\n",
 354                         shader, i, written_val, uif(written_val));
 355 #endif
 356         }
 357
 358         cl_end(&vc4->uniforms, uniforms);
 359
 360         vc4_bo_unreference(&ubo);
 361 }
 362
 363 void
 364 vc4_set_shader_uniform_dirty_flags(struct vc4_compiled_shader *shader)
 365 {
 366         uint32_t dirty = 0;
 367
 368         for (int i = 0; i < shader->uniforms.count; i++) {
 369                 switch (shader->uniforms.contents[i]) {
 370                 case QUNIFORM_CONSTANT:
 371                 case QUNIFORM_UNIFORMS_ADDRESS:
 372                         break;
 373                 case QUNIFORM_UNIFORM:
 374                 case QUNIFORM_UBO_ADDR:
 375                         dirty |= VC4_DIRTY_CONSTBUF;
 376                         break;
 377
 378                 case QUNIFORM_VIEWPORT_X_SCALE:
 379                 case QUNIFORM_VIEWPORT_Y_SCALE:
 380                 case QUNIFORM_VIEWPORT_Z_OFFSET:
 381                 case QUNIFORM_VIEWPORT_Z_SCALE:
 382                         dirty |= VC4_DIRTY_VIEWPORT;
 383                         break;
 384
 385                 case QUNIFORM_USER_CLIP_PLANE:
 386                         dirty |= VC4_DIRTY_CLIP;
 387                         break;
 388
 389                 case QUNIFORM_TEXTURE_CONFIG_P0:
 390                 case QUNIFORM_TEXTURE_CONFIG_P1:
 391                 case QUNIFORM_TEXTURE_CONFIG_P2:
 392                 case QUNIFORM_TEXTURE_BORDER_COLOR:
 393                 case QUNIFORM_TEXTURE_FIRST_LEVEL:
 394                 case QUNIFORM_TEXTURE_MSAA_ADDR:
 395                 case QUNIFORM_TEXRECT_SCALE_X:
 396                 case QUNIFORM_TEXRECT_SCALE_Y:
 397                         /* We could flag this on just the stage we're
 398                          * compiling for, but it's not passed in.
 399                          */
 400                         dirty |= VC4_DIRTY_FRAGTEX | VC4_DIRTY_VERTTEX;
 401                         break;
 402
 403                 case QUNIFORM_BLEND_CONST_COLOR_X:
 404                 case QUNIFORM_BLEND_CONST_COLOR_Y:
 405                 case QUNIFORM_BLEND_CONST_COLOR_Z:
 406                 case QUNIFORM_BLEND_CONST_COLOR_W:
 407                 case QUNIFORM_BLEND_CONST_COLOR_RGBA:
 408                 case QUNIFORM_BLEND_CONST_COLOR_AAAA:
 409                         dirty |= VC4_DIRTY_BLEND_COLOR;
 410                         break;
 411
 412                 case QUNIFORM_STENCIL:
 413                 case QUNIFORM_ALPHA_REF:
 414                         dirty |= VC4_DIRTY_ZSA;
 415                         break;
 416
 417                 case QUNIFORM_SAMPLE_MASK:
 418                         dirty |= VC4_DIRTY_SAMPLE_MASK;
 419                         break;
 420                 }
 421         }
 422
 423         shader->uniform_dirty_bits = dirty;
 424 }