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