src/gallium/drivers/zink/zink_screen.c

   1 /*
   2  * Copyright 2018 Collabora Ltd.
   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  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the 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 NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  */
  23
  24 #include "zink_screen.h"
  25
  26 #include "zink_compiler.h"
  27 #include "zink_context.h"
  28 #include "zink_fence.h"
  29 #include "zink_public.h"
  30 #include "zink_resource.h"
  31
  32 #include "os/os_process.h"
  33 #include "util/u_debug.h"
  34 #include "util/format/u_format.h"
  35 #include "util/u_math.h"
  36 #include "util/u_memory.h"
  37 #include "util/u_screen.h"
  38 #include "util/u_string.h"
  39
  40 #include "frontend/sw_winsys.h"
  41
  42 static const struct debug_named_value
  43 debug_options[] = {
  44    { "nir", ZINK_DEBUG_NIR, "Dump NIR during program compile" },
  45    { "spirv", ZINK_DEBUG_SPIRV, "Dump SPIR-V during program compile" },
  46    { "tgsi", ZINK_DEBUG_TGSI, "Dump TGSI during program compile" },
  47    DEBUG_NAMED_VALUE_END
  48 };
  49
  50 DEBUG_GET_ONCE_FLAGS_OPTION(zink_debug, "ZINK_DEBUG", debug_options, 0)
  51
  52 uint32_t
  53 zink_debug;
  54
  55 static const char *
  56 zink_get_vendor(struct pipe_screen *pscreen)
  57 {
  58    return "Collabora Ltd";
  59 }
  60
  61 static const char *
  62 zink_get_device_vendor(struct pipe_screen *pscreen)
  63 {
  64    struct zink_screen *screen = zink_screen(pscreen);
  65    static char buf[1000];
  66    snprintf(buf, sizeof(buf), "Unknown (vendor-id: 0x%04x)", screen->props.vendorID);
  67    return buf;
  68 }
  69
  70 static const char *
  71 zink_get_name(struct pipe_screen *pscreen)
  72 {
  73    struct zink_screen *screen = zink_screen(pscreen);
  74    static char buf[1000];
  75    snprintf(buf, sizeof(buf), "zink (%s)", screen->props.deviceName);
  76    return buf;
  77 }
  78
  79 static int
  80 get_video_mem(struct zink_screen *screen)
  81 {
  82    VkDeviceSize size = 0;
  83    for (uint32_t i = 0; i < screen->mem_props.memoryHeapCount; ++i) {
  84       if (screen->mem_props.memoryHeaps[i].flags &
  85           VK_MEMORY_HEAP_DEVICE_LOCAL_BIT)
  86          size += screen->mem_props.memoryHeaps[i].size;
  87    }
  88    return (int)(size >> 20);
  89 }
  90
  91 static int
  92 zink_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
  93 {
  94    struct zink_screen *screen = zink_screen(pscreen);
  95
  96    switch (param) {
  97    case PIPE_CAP_NPOT_TEXTURES:
  98       return 1;
  99
 100    case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
 101       if (!screen->feats.dualSrcBlend)
 102          return 0;
 103       return screen->props.limits.maxFragmentDualSrcAttachments;
 104
 105    case PIPE_CAP_POINT_SPRITE:
 106       return 1;
 107
 108    case PIPE_CAP_MAX_RENDER_TARGETS:
 109       return screen->props.limits.maxColorAttachments;
 110
 111    case PIPE_CAP_OCCLUSION_QUERY:
 112       return 1;
 113
 114 #if 0 /* TODO: Enable me */
 115    case PIPE_CAP_QUERY_TIME_ELAPSED:
 116       return 1;
 117 #endif
 118
 119    case PIPE_CAP_TEXTURE_MULTISAMPLE:
 120       return 1;
 121
 122    case PIPE_CAP_TEXTURE_SWIZZLE:
 123       return 1;
 124
 125    case PIPE_CAP_MAX_TEXTURE_2D_SIZE:
 126       return screen->props.limits.maxImageDimension2D;
 127    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 128       return 1 + util_logbase2(screen->props.limits.maxImageDimension3D);
 129    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 130       return 1 + util_logbase2(screen->props.limits.maxImageDimensionCube);
 131
 132    case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 133    case PIPE_CAP_FRAGMENT_SHADER_TEXTURE_LOD:
 134    case PIPE_CAP_FRAGMENT_SHADER_DERIVATIVES:
 135    case PIPE_CAP_VERTEX_SHADER_SATURATE:
 136       return 1;
 137
 138    case PIPE_CAP_INDEP_BLEND_ENABLE:
 139    case PIPE_CAP_INDEP_BLEND_FUNC:
 140       return 1;
 141
 142    case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 143       return screen->props.limits.maxImageArrayLayers;
 144
 145 #if 0 /* TODO: Enable me */
 146    case PIPE_CAP_DEPTH_CLIP_DISABLE:
 147       return 0;
 148 #endif
 149
 150    case PIPE_CAP_TGSI_INSTANCEID:
 151    case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 152    case PIPE_CAP_SEAMLESS_CUBE_MAP:
 153       return 1;
 154
 155    case PIPE_CAP_MIN_TEXEL_OFFSET:
 156       return screen->props.limits.minTexelOffset;
 157    case PIPE_CAP_MAX_TEXEL_OFFSET:
 158       return screen->props.limits.maxTexelOffset;
 159
 160    case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
 161       return 1;
 162
 163    case PIPE_CAP_CONDITIONAL_RENDER:
 164      return screen->have_EXT_conditional_rendering;
 165
 166    case PIPE_CAP_GLSL_FEATURE_LEVEL:
 167    case PIPE_CAP_GLSL_FEATURE_LEVEL_COMPATIBILITY:
 168       return 120;
 169
 170 #if 0 /* TODO: Enable me */
 171    case PIPE_CAP_COMPUTE:
 172       return 1;
 173 #endif
 174
 175    case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
 176       return screen->props.limits.minUniformBufferOffsetAlignment;
 177
 178 #if 0 /* TODO: Enable me */
 179    case PIPE_CAP_QUERY_TIMESTAMP:
 180       return 1;
 181 #endif
 182
 183    case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 184       return screen->props.limits.minMemoryMapAlignment;
 185
 186    case PIPE_CAP_CUBE_MAP_ARRAY:
 187       return screen->feats.imageCubeArray;
 188
 189    case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
 190       return 1;
 191
 192    case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
 193       return screen->props.limits.minTexelBufferOffsetAlignment;
 194
 195    case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 196       return 0; /* unsure */
 197
 198    case PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE:
 199       return screen->props.limits.maxTexelBufferElements;
 200
 201    case PIPE_CAP_ENDIANNESS:
 202       return PIPE_ENDIAN_NATIVE; /* unsure */
 203
 204    case PIPE_CAP_MAX_VIEWPORTS:
 205       return 1; /* TODO: When GS is supported, use screen->props.limits.maxViewports */
 206
 207    case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
 208       return 1;
 209
 210    case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
 211       return screen->props.limits.maxGeometryOutputVertices;
 212    case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
 213       return screen->props.limits.maxGeometryOutputComponents;
 214
 215 #if 0 /* TODO: Enable me. Enables ARB_texture_gather */
 216    case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
 217       return 4;
 218 #endif
 219
 220    case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
 221       return screen->props.limits.minTexelGatherOffset;
 222    case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
 223       return screen->props.limits.maxTexelGatherOffset;
 224
 225    case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
 226       return 1;
 227
 228    case PIPE_CAP_VENDOR_ID:
 229       return screen->props.vendorID;
 230    case PIPE_CAP_DEVICE_ID:
 231       return screen->props.deviceID;
 232
 233    case PIPE_CAP_ACCELERATED:
 234       return 1;
 235    case PIPE_CAP_VIDEO_MEMORY:
 236       return get_video_mem(screen);
 237    case PIPE_CAP_UMA:
 238       return screen->props.deviceType == VK_PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU;
 239
 240    case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
 241       return screen->props.limits.maxVertexInputBindingStride;
 242
 243 #if 0 /* TODO: Enable me */
 244    case PIPE_CAP_SAMPLER_VIEW_TARGET:
 245       return 1;
 246 #endif
 247
 248 #if 0 /* TODO: Enable me */
 249    case PIPE_CAP_CLIP_HALFZ:
 250       return 1;
 251 #endif
 252
 253 #if 0 /* TODO: Enable me */
 254    case PIPE_CAP_TEXTURE_FLOAT_LINEAR:
 255    case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
 256       return 1;
 257 #endif
 258
 259    case PIPE_CAP_SHAREABLE_SHADERS:
 260       return 1;
 261
 262 #if 0 /* TODO: Enable me. Enables GL_ARB_shader_storage_buffer_object */
 263    case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
 264       return screen->props.limits.minStorageBufferOffsetAlignment;
 265 #endif
 266
 267    case PIPE_CAP_PCI_GROUP:
 268    case PIPE_CAP_PCI_BUS:
 269    case PIPE_CAP_PCI_DEVICE:
 270    case PIPE_CAP_PCI_FUNCTION:
 271       return 0; /* TODO: figure these out */
 272
 273 #if 0 /* TODO: Enable me */
 274    case PIPE_CAP_CULL_DISTANCE:
 275       return screen->feats.shaderCullDistance;
 276 #endif
 277
 278    case PIPE_CAP_VIEWPORT_SUBPIXEL_BITS:
 279       return screen->props.limits.viewportSubPixelBits;
 280
 281    case PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY:
 282       return 0; /* not sure */
 283
 284    case PIPE_CAP_MAX_GS_INVOCATIONS:
 285       return 0; /* not implemented */
 286
 287    case PIPE_CAP_MAX_COMBINED_SHADER_BUFFERS:
 288       return screen->props.limits.maxDescriptorSetStorageBuffers;
 289
 290    case PIPE_CAP_MAX_SHADER_BUFFER_SIZE:
 291       return screen->props.limits.maxStorageBufferRange; /* unsure */
 292
 293    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 294    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 295       return 1;
 296
 297    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 298    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 299       return 0;
 300
 301    case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
 302       return 0;
 303
 304    case PIPE_CAP_NIR_COMPACT_ARRAYS:
 305       return 1;
 306
 307    case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
 308       return 1;
 309
 310    case PIPE_CAP_FLATSHADE:
 311    case PIPE_CAP_ALPHA_TEST:
 312    case PIPE_CAP_CLIP_PLANES:
 313    case PIPE_CAP_POINT_SIZE_FIXED:
 314    case PIPE_CAP_TWO_SIDED_COLOR:
 315       return 0;
 316
 317    case PIPE_CAP_DMABUF:
 318       return screen->have_KHR_external_memory_fd;
 319
 320    default:
 321       return u_pipe_screen_get_param_defaults(pscreen, param);
 322    }
 323 }
 324
 325 static float
 326 zink_get_paramf(struct pipe_screen *pscreen, enum pipe_capf param)
 327 {
 328    struct zink_screen *screen = zink_screen(pscreen);
 329
 330    switch (param) {
 331    case PIPE_CAPF_MAX_LINE_WIDTH:
 332    case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 333       return screen->props.limits.lineWidthRange[1];
 334
 335    case PIPE_CAPF_MAX_POINT_WIDTH:
 336    case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 337       return screen->props.limits.pointSizeRange[1];
 338
 339    case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 340       return screen->props.limits.maxSamplerAnisotropy;
 341
 342    case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 343       return screen->props.limits.maxSamplerLodBias;
 344
 345    case PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE:
 346    case PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE:
 347    case PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY:
 348       return 0.0f; /* not implemented */
 349    }
 350
 351    /* should only get here on unhandled cases */
 352    return 0.0;
 353 }
 354
 355 static int
 356 zink_get_shader_param(struct pipe_screen *pscreen,
 357                        enum pipe_shader_type shader,
 358                        enum pipe_shader_cap param)
 359 {
 360    struct zink_screen *screen = zink_screen(pscreen);
 361
 362    switch (param) {
 363    case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 364    case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 365    case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 366    case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 367    case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 368       if (shader == PIPE_SHADER_VERTEX ||
 369           shader == PIPE_SHADER_FRAGMENT)
 370          return INT_MAX;
 371       return 0;
 372
 373    case PIPE_SHADER_CAP_MAX_INPUTS:
 374       switch (shader) {
 375       case PIPE_SHADER_VERTEX:
 376          return MIN2(screen->props.limits.maxVertexInputAttributes,
 377                      PIPE_MAX_SHADER_INPUTS);
 378       case PIPE_SHADER_FRAGMENT:
 379          return MIN2(screen->props.limits.maxFragmentInputComponents / 4,
 380                      PIPE_MAX_SHADER_INPUTS);
 381       default:
 382          return 0; /* unsupported stage */
 383       }
 384
 385    case PIPE_SHADER_CAP_MAX_OUTPUTS:
 386       switch (shader) {
 387       case PIPE_SHADER_VERTEX:
 388          return MIN2(screen->props.limits.maxVertexOutputComponents / 4,
 389                      PIPE_MAX_SHADER_OUTPUTS);
 390       case PIPE_SHADER_FRAGMENT:
 391          return MIN2(screen->props.limits.maxColorAttachments,
 392                 PIPE_MAX_SHADER_OUTPUTS);
 393       default:
 394          return 0; /* unsupported stage */
 395       }
 396
 397    case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 398       switch (shader) {
 399       case PIPE_SHADER_VERTEX:
 400       case PIPE_SHADER_FRAGMENT:
 401          /* this might be a bit simplistic... */
 402          return MIN2(screen->props.limits.maxPerStageDescriptorSamplers,
 403                      PIPE_MAX_SAMPLERS);
 404       default:
 405          return 0; /* unsupported stage */
 406       }
 407
 408    case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 409       return MIN2(screen->props.limits.maxUniformBufferRange, INT_MAX);
 410
 411    case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 412       return screen->props.limits.maxPerStageDescriptorUniformBuffers;
 413
 414    case PIPE_SHADER_CAP_MAX_TEMPS:
 415       return INT_MAX;
 416
 417    case PIPE_SHADER_CAP_INTEGERS:
 418       return 1;
 419
 420    case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 421    case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 422    case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 423    case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 424    case PIPE_SHADER_CAP_SUBROUTINES:
 425    case PIPE_SHADER_CAP_INT64_ATOMICS:
 426    case PIPE_SHADER_CAP_FP16:
 427    case PIPE_SHADER_CAP_FP16_DERIVATIVES:
 428    case PIPE_SHADER_CAP_INT16:
 429       return 0; /* not implemented */
 430
 431    case PIPE_SHADER_CAP_PREFERRED_IR:
 432       return PIPE_SHADER_IR_NIR;
 433
 434    case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 435       return 0; /* not implemented */
 436
 437    case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 438       return MIN2(screen->props.limits.maxPerStageDescriptorSampledImages,
 439                   PIPE_MAX_SHADER_SAMPLER_VIEWS);
 440
 441    case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 442    case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 443    case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 444       return 0; /* not implemented */
 445
 446    case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 447       return 0; /* no idea */
 448
 449    case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 450       return 32; /* arbitrary */
 451
 452    case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 453       /* TODO: this limitation is dumb, and will need some fixes in mesa */
 454       return MIN2(screen->props.limits.maxPerStageDescriptorStorageBuffers, 8);
 455
 456    case PIPE_SHADER_CAP_SUPPORTED_IRS:
 457       return (1 << PIPE_SHADER_IR_NIR) | (1 << PIPE_SHADER_IR_TGSI);
 458
 459    case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 460 #if 0 /* TODO: needs compiler support */
 461       return MIN2(screen->props.limits.maxPerStageDescriptorStorageImages,
 462                   PIPE_MAX_SHADER_IMAGES);
 463 #else
 464       return 0;
 465 #endif
 466
 467    case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
 468    case PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS:
 469       return 0; /* unsure */
 470
 471    case PIPE_SHADER_CAP_TGSI_LDEXP_SUPPORTED:
 472    case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS:
 473    case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS:
 474    case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 475       return 0; /* not implemented */
 476    }
 477
 478    /* should only get here on unhandled cases */
 479    return 0;
 480 }
 481
 482 static VkSampleCountFlagBits
 483 vk_sample_count_flags(uint32_t sample_count)
 484 {
 485    switch (sample_count) {
 486    case 1: return VK_SAMPLE_COUNT_1_BIT;
 487    case 2: return VK_SAMPLE_COUNT_2_BIT;
 488    case 4: return VK_SAMPLE_COUNT_4_BIT;
 489    case 8: return VK_SAMPLE_COUNT_8_BIT;
 490    case 16: return VK_SAMPLE_COUNT_16_BIT;
 491    case 32: return VK_SAMPLE_COUNT_32_BIT;
 492    case 64: return VK_SAMPLE_COUNT_64_BIT;
 493    default:
 494       return 0;
 495    }
 496 }
 497
 498 static bool
 499 zink_is_format_supported(struct pipe_screen *pscreen,
 500                          enum pipe_format format,
 501                          enum pipe_texture_target target,
 502                          unsigned sample_count,
 503                          unsigned storage_sample_count,
 504                          unsigned bind)
 505 {
 506    struct zink_screen *screen = zink_screen(pscreen);
 507
 508    if (format == PIPE_FORMAT_NONE)
 509       return screen->props.limits.framebufferNoAttachmentsSampleCounts &
 510              vk_sample_count_flags(sample_count);
 511
 512    VkFormat vkformat = zink_get_format(screen, format);
 513    if (vkformat == VK_FORMAT_UNDEFINED)
 514       return false;
 515
 516    if (sample_count >= 1) {
 517       VkSampleCountFlagBits sample_mask = vk_sample_count_flags(sample_count);
 518       if (!sample_mask)
 519          return false;
 520       const struct util_format_description *desc = util_format_description(format);
 521       if (util_format_is_depth_or_stencil(format)) {
 522          if (util_format_has_depth(desc)) {
 523             if (bind & PIPE_BIND_DEPTH_STENCIL &&
 524                 (screen->props.limits.framebufferDepthSampleCounts & sample_mask) != sample_mask)
 525                return false;
 526             if (bind & PIPE_BIND_SAMPLER_VIEW &&
 527                 (screen->props.limits.sampledImageDepthSampleCounts & sample_mask) != sample_mask)
 528                return false;
 529          }
 530          if (util_format_has_stencil(desc)) {
 531             if (bind & PIPE_BIND_DEPTH_STENCIL &&
 532                 (screen->props.limits.framebufferStencilSampleCounts & sample_mask) != sample_mask)
 533                return false;
 534             if (bind & PIPE_BIND_SAMPLER_VIEW &&
 535                 (screen->props.limits.sampledImageStencilSampleCounts & sample_mask) != sample_mask)
 536                return false;
 537          }
 538       } else if (util_format_is_pure_integer(format)) {
 539          if (bind & PIPE_BIND_RENDER_TARGET &&
 540              !(screen->props.limits.framebufferColorSampleCounts & sample_mask))
 541             return false;
 542          if (bind & PIPE_BIND_SAMPLER_VIEW &&
 543              !(screen->props.limits.sampledImageIntegerSampleCounts & sample_mask))
 544             return false;
 545       } else {
 546          if (bind & PIPE_BIND_RENDER_TARGET &&
 547              !(screen->props.limits.framebufferColorSampleCounts & sample_mask))
 548             return false;
 549          if (bind & PIPE_BIND_SAMPLER_VIEW &&
 550              !(screen->props.limits.sampledImageColorSampleCounts & sample_mask))
 551             return false;
 552       }
 553    }
 554
 555    VkFormatProperties props;
 556    vkGetPhysicalDeviceFormatProperties(screen->pdev, vkformat, &props);
 557
 558    if (target == PIPE_BUFFER) {
 559       if (bind & PIPE_BIND_VERTEX_BUFFER &&
 560           !(props.bufferFeatures & VK_FORMAT_FEATURE_VERTEX_BUFFER_BIT))
 561          return false;
 562    } else {
 563       /* all other targets are texture-targets */
 564       if (bind & PIPE_BIND_RENDER_TARGET &&
 565           !(props.optimalTilingFeatures & VK_FORMAT_FEATURE_COLOR_ATTACHMENT_BIT))
 566          return false;
 567
 568       if (bind & PIPE_BIND_BLENDABLE &&
 569          !(props.optimalTilingFeatures & VK_FORMAT_FEATURE_COLOR_ATTACHMENT_BLEND_BIT))
 570         return false;
 571
 572       if (bind & PIPE_BIND_SAMPLER_VIEW &&
 573           !(props.optimalTilingFeatures & VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT))
 574          return false;
 575
 576       if (bind & PIPE_BIND_DEPTH_STENCIL &&
 577           !(props.optimalTilingFeatures & VK_FORMAT_FEATURE_DEPTH_STENCIL_ATTACHMENT_BIT))
 578          return false;
 579    }
 580
 581    if (util_format_is_compressed(format)) {
 582       const struct util_format_description *desc = util_format_description(format);
 583       if (desc->layout == UTIL_FORMAT_LAYOUT_BPTC &&
 584           !screen->feats.textureCompressionBC)
 585          return false;
 586    }
 587
 588    return true;
 589 }
 590
 591 static void
 592 zink_destroy_screen(struct pipe_screen *pscreen)
 593 {
 594    struct zink_screen *screen = zink_screen(pscreen);
 595    slab_destroy_parent(&screen->transfer_pool);
 596    FREE(screen);
 597 }
 598
 599 static VkInstance
 600 create_instance()
 601 {
 602    VkApplicationInfo ai = {};
 603    ai.sType = VK_STRUCTURE_TYPE_APPLICATION_INFO;
 604
 605    char proc_name[128];
 606    if (os_get_process_name(proc_name, ARRAY_SIZE(proc_name)))
 607       ai.pApplicationName = proc_name;
 608    else
 609       ai.pApplicationName = "unknown";
 610
 611    ai.pEngineName = "mesa zink";
 612    ai.apiVersion = VK_API_VERSION_1_0;
 613
 614    const char *extensions[] = {
 615       VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME,
 616       VK_KHR_EXTERNAL_MEMORY_CAPABILITIES_EXTENSION_NAME,
 617    };
 618
 619    VkInstanceCreateInfo ici = {};
 620    ici.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO;
 621    ici.pApplicationInfo = &ai;
 622    ici.ppEnabledExtensionNames = extensions;
 623    ici.enabledExtensionCount = ARRAY_SIZE(extensions);
 624
 625    VkInstance instance = VK_NULL_HANDLE;
 626    VkResult err = vkCreateInstance(&ici, NULL, &instance);
 627    if (err != VK_SUCCESS)
 628       return VK_NULL_HANDLE;
 629
 630    return instance;
 631 }
 632
 633 static VkPhysicalDevice
 634 choose_pdev(const VkInstance instance)
 635 {
 636    uint32_t i, pdev_count;
 637    VkPhysicalDevice *pdevs, pdev;
 638    vkEnumeratePhysicalDevices(instance, &pdev_count, NULL);
 639    assert(pdev_count > 0);
 640
 641    pdevs = malloc(sizeof(*pdevs) * pdev_count);
 642    vkEnumeratePhysicalDevices(instance, &pdev_count, pdevs);
 643    assert(pdev_count > 0);
 644
 645    pdev = pdevs[0];
 646    for (i = 0; i < pdev_count; ++i) {
 647       VkPhysicalDeviceProperties props;
 648       vkGetPhysicalDeviceProperties(pdevs[i], &props);
 649       if (props.deviceType == VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU) {
 650          pdev = pdevs[i];
 651          break;
 652       }
 653    }
 654    free(pdevs);
 655    return pdev;
 656 }
 657
 658 static uint32_t
 659 find_gfx_queue(const VkPhysicalDevice pdev)
 660 {
 661    uint32_t num_queues;
 662    vkGetPhysicalDeviceQueueFamilyProperties(pdev, &num_queues, NULL);
 663    assert(num_queues > 0);
 664
 665    VkQueueFamilyProperties *props = malloc(sizeof(*props) * num_queues);
 666    vkGetPhysicalDeviceQueueFamilyProperties(pdev, &num_queues, props);
 667
 668    for (uint32_t i = 0; i < num_queues; i++) {
 669       if (props[i].queueFlags & VK_QUEUE_GRAPHICS_BIT) {
 670          free(props);
 671          return i;
 672       }
 673    }
 674
 675    return UINT32_MAX;
 676 }
 677
 678 static void
 679 zink_flush_frontbuffer(struct pipe_screen *pscreen,
 680                        struct pipe_resource *pres,
 681                        unsigned level, unsigned layer,
 682                        void *winsys_drawable_handle,
 683                        struct pipe_box *sub_box)
 684 {
 685    struct zink_screen *screen = zink_screen(pscreen);
 686    struct sw_winsys *winsys = screen->winsys;
 687    struct zink_resource *res = zink_resource(pres);
 688
 689    if (!winsys)
 690      return;
 691    void *map = winsys->displaytarget_map(winsys, res->dt, 0);
 692
 693    if (map) {
 694       VkImageSubresource isr = {};
 695       isr.aspectMask = res->aspect;
 696       isr.mipLevel = level;
 697       isr.arrayLayer = layer;
 698       VkSubresourceLayout layout;
 699       vkGetImageSubresourceLayout(screen->dev, res->image, &isr, &layout);
 700
 701       void *ptr;
 702       VkResult result = vkMapMemory(screen->dev, res->mem, res->offset, res->size, 0, &ptr);
 703       if (result != VK_SUCCESS) {
 704          debug_printf("failed to map memory for display\n");
 705          return;
 706       }
 707       for (int i = 0; i < pres->height0; ++i) {
 708          uint8_t *src = (uint8_t *)ptr + i * layout.rowPitch;
 709          uint8_t *dst = (uint8_t *)map + i * res->dt_stride;
 710          memcpy(dst, src, res->dt_stride);
 711       }
 712       vkUnmapMemory(screen->dev, res->mem);
 713    }
 714
 715    winsys->displaytarget_unmap(winsys, res->dt);
 716
 717    assert(res->dt);
 718    if (res->dt)
 719       winsys->displaytarget_display(winsys, res->dt, winsys_drawable_handle, sub_box);
 720 }
 721
 722 static bool
 723 load_device_extensions(struct zink_screen *screen)
 724 {
 725 #define GET_PROC_ADDR(x) do {                                               \
 726       screen->vk_##x = (PFN_vk##x)vkGetDeviceProcAddr(screen->dev, "vk"#x); \
 727       if (!screen->vk_##x)                                                  \
 728          return false;                                                      \
 729    } while (0)
 730
 731    if (screen->have_KHR_external_memory_fd)
 732       GET_PROC_ADDR(GetMemoryFdKHR);
 733
 734    if (screen->have_EXT_conditional_rendering) {
 735       GET_PROC_ADDR(CmdBeginConditionalRenderingEXT);
 736       GET_PROC_ADDR(CmdEndConditionalRenderingEXT);
 737    }
 738
 739 #undef GET_PROC_ADDR
 740
 741    return true;
 742 }
 743
 744 static struct pipe_screen *
 745 zink_internal_create_screen(struct sw_winsys *winsys, int fd)
 746 {
 747    struct zink_screen *screen = CALLOC_STRUCT(zink_screen);
 748    if (!screen)
 749       return NULL;
 750
 751    zink_debug = debug_get_option_zink_debug();
 752
 753    screen->instance = create_instance();
 754    screen->pdev = choose_pdev(screen->instance);
 755    screen->gfx_queue = find_gfx_queue(screen->pdev);
 756
 757    vkGetPhysicalDeviceProperties(screen->pdev, &screen->props);
 758    vkGetPhysicalDeviceFeatures(screen->pdev, &screen->feats);
 759    vkGetPhysicalDeviceMemoryProperties(screen->pdev, &screen->mem_props);
 760
 761    screen->have_X8_D24_UNORM_PACK32 = zink_is_depth_format_supported(screen,
 762                                               VK_FORMAT_X8_D24_UNORM_PACK32);
 763    screen->have_D24_UNORM_S8_UINT = zink_is_depth_format_supported(screen,
 764                                               VK_FORMAT_D24_UNORM_S8_UINT);
 765
 766    uint32_t num_extensions = 0;
 767    if (vkEnumerateDeviceExtensionProperties(screen->pdev, NULL,
 768        &num_extensions, NULL) == VK_SUCCESS && num_extensions > 0) {
 769       VkExtensionProperties *extensions = MALLOC(sizeof(VkExtensionProperties) *
 770                                                 num_extensions);
 771       if (extensions) {
 772          vkEnumerateDeviceExtensionProperties(screen->pdev, NULL,
 773                                               &num_extensions, extensions);
 774
 775          for (uint32_t  i = 0; i < num_extensions; ++i) {
 776             if (!strcmp(extensions[i].extensionName,
 777                         VK_KHR_MAINTENANCE1_EXTENSION_NAME))
 778                screen->have_KHR_maintenance1 = true;
 779             if (!strcmp(extensions[i].extensionName,
 780                         VK_KHR_EXTERNAL_MEMORY_FD_EXTENSION_NAME))
 781                screen->have_KHR_external_memory_fd = true;
 782             if (!strcmp(extensions[i].extensionName,
 783                         VK_EXT_CONDITIONAL_RENDERING_EXTENSION_NAME))
 784                screen->have_EXT_conditional_rendering = true;
 785          }
 786          FREE(extensions);
 787       }
 788    }
 789
 790    if (!screen->have_KHR_maintenance1) {
 791       debug_printf("ZINK: VK_KHR_maintenance1 required!\n");
 792       goto fail;
 793    }
 794
 795    VkDeviceQueueCreateInfo qci = {};
 796    float dummy = 0.0f;
 797    qci.sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
 798    qci.queueFamilyIndex = screen->gfx_queue;
 799    qci.queueCount = 1;
 800    qci.pQueuePriorities = &dummy;
 801
 802    VkDeviceCreateInfo dci = {};
 803    dci.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
 804    dci.queueCreateInfoCount = 1;
 805    dci.pQueueCreateInfos = &qci;
 806    dci.pEnabledFeatures = &screen->feats;
 807    const char *extensions[4] = {
 808       VK_KHR_MAINTENANCE1_EXTENSION_NAME,
 809    };
 810    num_extensions = 1;
 811
 812    if (fd >= 0 && !screen->have_KHR_external_memory_fd) {
 813       debug_printf("ZINK: KHR_external_memory_fd required!\n");
 814       goto fail;
 815    }
 816
 817    if (screen->have_KHR_external_memory_fd) {
 818       extensions[num_extensions++] = VK_KHR_EXTERNAL_MEMORY_EXTENSION_NAME;
 819       extensions[num_extensions++] = VK_KHR_EXTERNAL_MEMORY_FD_EXTENSION_NAME;
 820    }
 821
 822    if (screen->have_EXT_conditional_rendering)
 823       extensions[num_extensions++] = VK_EXT_CONDITIONAL_RENDERING_EXTENSION_NAME;
 824
 825    assert(num_extensions <= ARRAY_SIZE(extensions));
 826
 827    dci.ppEnabledExtensionNames = extensions;
 828    dci.enabledExtensionCount = num_extensions;
 829    if (vkCreateDevice(screen->pdev, &dci, NULL, &screen->dev) != VK_SUCCESS)
 830       goto fail;
 831
 832    if (!load_device_extensions(screen))
 833       goto fail;
 834
 835    screen->winsys = winsys;
 836
 837    screen->base.get_name = zink_get_name;
 838    screen->base.get_vendor = zink_get_vendor;
 839    screen->base.get_device_vendor = zink_get_device_vendor;
 840    screen->base.get_param = zink_get_param;
 841    screen->base.get_paramf = zink_get_paramf;
 842    screen->base.get_shader_param = zink_get_shader_param;
 843    screen->base.get_compiler_options = zink_get_compiler_options;
 844    screen->base.is_format_supported = zink_is_format_supported;
 845    screen->base.context_create = zink_context_create;
 846    screen->base.flush_frontbuffer = zink_flush_frontbuffer;
 847    screen->base.destroy = zink_destroy_screen;
 848
 849    zink_screen_resource_init(&screen->base);
 850    zink_screen_fence_init(&screen->base);
 851
 852    slab_create_parent(&screen->transfer_pool, sizeof(struct zink_transfer), 16);
 853
 854    return &screen->base;
 855
 856 fail:
 857    FREE(screen);
 858    return NULL;
 859 }
 860
 861 struct pipe_screen *
 862 zink_create_screen(struct sw_winsys *winsys)
 863 {
 864    return zink_internal_create_screen(winsys, -1);
 865 }
 866
 867 struct pipe_screen *
 868 zink_drm_create_screen(int fd)
 869 {
 870    return zink_internal_create_screen(NULL, fd);
 871 }