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 "state_tracker/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       return screen->props.limits.maxFragmentDualSrcAttachments;
  99
 100    case PIPE_CAP_POINT_SPRITE:
 101       return 1;
 102
 103    case PIPE_CAP_MAX_RENDER_TARGETS:
 104       return screen->props.limits.maxColorAttachments;
 105
 106    case PIPE_CAP_OCCLUSION_QUERY:
 107       return 1;
 108
 109 #if 0 /* TODO: Enable me */
 110    case PIPE_CAP_QUERY_TIME_ELAPSED:
 111       return 1;
 112 #endif
 113
 114    case PIPE_CAP_TEXTURE_SWIZZLE:
 115       return 1;
 116
 117    case PIPE_CAP_MAX_TEXTURE_2D_SIZE:
 118       return screen->props.limits.maxImageDimension2D;
 119    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 120       return 1 + util_logbase2(screen->props.limits.maxImageDimension3D);
 121    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 122       return 1 + util_logbase2(screen->props.limits.maxImageDimensionCube);
 123
 124    case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 125    case PIPE_CAP_FRAGMENT_SHADER_TEXTURE_LOD:
 126    case PIPE_CAP_FRAGMENT_SHADER_DERIVATIVES:
 127    case PIPE_CAP_VERTEX_SHADER_SATURATE:
 128       return 1;
 129
 130    case PIPE_CAP_INDEP_BLEND_ENABLE:
 131    case PIPE_CAP_INDEP_BLEND_FUNC:
 132       return 1;
 133
 134    case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 135       return screen->props.limits.maxImageArrayLayers;
 136
 137 #if 0 /* TODO: Enable me */
 138    case PIPE_CAP_DEPTH_CLIP_DISABLE:
 139       return 0;
 140 #endif
 141
 142    case PIPE_CAP_TGSI_INSTANCEID:
 143    case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 144    case PIPE_CAP_SEAMLESS_CUBE_MAP:
 145       return 1;
 146
 147    case PIPE_CAP_MIN_TEXEL_OFFSET:
 148       return screen->props.limits.minTexelOffset;
 149    case PIPE_CAP_MAX_TEXEL_OFFSET:
 150       return screen->props.limits.maxTexelOffset;
 151
 152    case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
 153       return 1;
 154
 155    case PIPE_CAP_GLSL_FEATURE_LEVEL:
 156    case PIPE_CAP_GLSL_FEATURE_LEVEL_COMPATIBILITY:
 157       return 120;
 158
 159 #if 0 /* TODO: Enable me */
 160    case PIPE_CAP_COMPUTE:
 161       return 1;
 162 #endif
 163
 164    case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
 165       return screen->props.limits.minUniformBufferOffsetAlignment;
 166
 167 #if 0 /* TODO: Enable me */
 168    case PIPE_CAP_QUERY_TIMESTAMP:
 169       return 1;
 170 #endif
 171
 172    case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 173       return screen->props.limits.minMemoryMapAlignment;
 174
 175    case PIPE_CAP_CUBE_MAP_ARRAY:
 176       return screen->feats.imageCubeArray;
 177
 178    case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
 179       return 1;
 180
 181    case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
 182       return screen->props.limits.minTexelBufferOffsetAlignment;
 183
 184    case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 185       return 0; /* unsure */
 186
 187    case PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE:
 188       return screen->props.limits.maxTexelBufferElements;
 189
 190    case PIPE_CAP_ENDIANNESS:
 191       return PIPE_ENDIAN_NATIVE; /* unsure */
 192
 193    case PIPE_CAP_MAX_VIEWPORTS:
 194       return screen->props.limits.maxViewports;
 195
 196    case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
 197       return 1;
 198
 199    case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
 200       return screen->props.limits.maxGeometryOutputVertices;
 201    case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
 202       return screen->props.limits.maxGeometryOutputComponents;
 203
 204 #if 0 /* TODO: Enable me. Enables ARB_texture_gather */
 205    case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
 206       return 4;
 207 #endif
 208
 209    case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
 210       return screen->props.limits.minTexelGatherOffset;
 211    case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
 212       return screen->props.limits.maxTexelGatherOffset;
 213
 214    case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
 215       return 1;
 216
 217    case PIPE_CAP_VENDOR_ID:
 218       return screen->props.vendorID;
 219    case PIPE_CAP_DEVICE_ID:
 220       return screen->props.deviceID;
 221
 222    case PIPE_CAP_ACCELERATED:
 223       return 1;
 224    case PIPE_CAP_VIDEO_MEMORY:
 225       return get_video_mem(screen);
 226    case PIPE_CAP_UMA:
 227       return screen->props.deviceType == VK_PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU;
 228
 229    case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
 230       return screen->props.limits.maxVertexInputBindingStride;
 231
 232 #if 0 /* TODO: Enable me */
 233    case PIPE_CAP_SAMPLER_VIEW_TARGET:
 234       return 1;
 235 #endif
 236
 237 #if 0 /* TODO: Enable me */
 238    case PIPE_CAP_CLIP_HALFZ:
 239       return 1;
 240 #endif
 241
 242 #if 0 /* TODO: Enable me */
 243    case PIPE_CAP_TEXTURE_FLOAT_LINEAR:
 244    case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
 245       return 1;
 246 #endif
 247
 248    case PIPE_CAP_SHAREABLE_SHADERS:
 249       return 1;
 250
 251 #if 0 /* TODO: Enable me. Enables GL_ARB_shader_storage_buffer_object */
 252    case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
 253       return screen->props.limits.minStorageBufferOffsetAlignment;
 254 #endif
 255
 256    case PIPE_CAP_PCI_GROUP:
 257    case PIPE_CAP_PCI_BUS:
 258    case PIPE_CAP_PCI_DEVICE:
 259    case PIPE_CAP_PCI_FUNCTION:
 260       return 0; /* TODO: figure these out */
 261
 262 #if 0 /* TODO: Enable me */
 263    case PIPE_CAP_CULL_DISTANCE:
 264       return screen->feats.shaderCullDistance;
 265 #endif
 266
 267    case PIPE_CAP_VIEWPORT_SUBPIXEL_BITS:
 268       return screen->props.limits.viewportSubPixelBits;
 269
 270    case PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY:
 271       return 0; /* not sure */
 272
 273    case PIPE_CAP_MAX_GS_INVOCATIONS:
 274       return 0; /* not implemented */
 275
 276    case PIPE_CAP_MAX_COMBINED_SHADER_BUFFERS:
 277       return screen->props.limits.maxDescriptorSetStorageBuffers;
 278
 279    case PIPE_CAP_MAX_SHADER_BUFFER_SIZE:
 280       return screen->props.limits.maxStorageBufferRange; /* unsure */
 281
 282    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 283    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 284       return 1;
 285
 286    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 287    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 288       return 0;
 289
 290    case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
 291       return 0;
 292
 293    case PIPE_CAP_NIR_COMPACT_ARRAYS:
 294       return 1;
 295
 296    case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
 297       return 1;
 298
 299    case PIPE_CAP_FLATSHADE:
 300    case PIPE_CAP_ALPHA_TEST:
 301    case PIPE_CAP_CLIP_PLANES:
 302    case PIPE_CAP_POINT_SIZE_FIXED:
 303    case PIPE_CAP_TWO_SIDED_COLOR:
 304       return 0;
 305
 306    case PIPE_CAP_DMABUF:
 307       return screen->have_KHR_external_memory_fd;
 308
 309    default:
 310       return u_pipe_screen_get_param_defaults(pscreen, param);
 311    }
 312 }
 313
 314 static float
 315 zink_get_paramf(struct pipe_screen *pscreen, enum pipe_capf param)
 316 {
 317    struct zink_screen *screen = zink_screen(pscreen);
 318
 319    switch (param) {
 320    case PIPE_CAPF_MAX_LINE_WIDTH:
 321    case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 322       return screen->props.limits.lineWidthRange[1];
 323
 324    case PIPE_CAPF_MAX_POINT_WIDTH:
 325    case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 326       return screen->props.limits.pointSizeRange[1];
 327
 328    case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 329       return screen->props.limits.maxSamplerAnisotropy;
 330
 331    case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 332       return screen->props.limits.maxSamplerLodBias;
 333
 334    case PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE:
 335    case PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE:
 336    case PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY:
 337       return 0.0f; /* not implemented */
 338    }
 339
 340    /* should only get here on unhandled cases */
 341    return 0.0;
 342 }
 343
 344 static int
 345 zink_get_shader_param(struct pipe_screen *pscreen,
 346                        enum pipe_shader_type shader,
 347                        enum pipe_shader_cap param)
 348 {
 349    struct zink_screen *screen = zink_screen(pscreen);
 350
 351    switch (param) {
 352    case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 353    case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 354    case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 355    case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 356    case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 357       if (shader == PIPE_SHADER_VERTEX ||
 358           shader == PIPE_SHADER_FRAGMENT)
 359          return INT_MAX;
 360       return 0;
 361
 362    case PIPE_SHADER_CAP_MAX_INPUTS:
 363       switch (shader) {
 364       case PIPE_SHADER_VERTEX:
 365          return MIN2(screen->props.limits.maxVertexInputAttributes,
 366                      PIPE_MAX_SHADER_INPUTS);
 367       case PIPE_SHADER_FRAGMENT:
 368          return MIN2(screen->props.limits.maxFragmentInputComponents / 4,
 369                      PIPE_MAX_SHADER_INPUTS);
 370       default:
 371          return 0; /* unsupported stage */
 372       }
 373
 374    case PIPE_SHADER_CAP_MAX_OUTPUTS:
 375       switch (shader) {
 376       case PIPE_SHADER_VERTEX:
 377          return MIN2(screen->props.limits.maxVertexOutputComponents / 4,
 378                      PIPE_MAX_SHADER_OUTPUTS);
 379       case PIPE_SHADER_FRAGMENT:
 380          return MIN2(screen->props.limits.maxColorAttachments,
 381                 PIPE_MAX_SHADER_OUTPUTS);
 382       default:
 383          return 0; /* unsupported stage */
 384       }
 385
 386    case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 387       /* this might be a bit simplistic... */
 388       return MIN2(screen->props.limits.maxPerStageDescriptorSamplers,
 389                   PIPE_MAX_SAMPLERS);
 390
 391    case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 392       return MIN2(screen->props.limits.maxUniformBufferRange, INT_MAX);
 393
 394    case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 395       return screen->props.limits.maxPerStageDescriptorUniformBuffers;
 396
 397    case PIPE_SHADER_CAP_MAX_TEMPS:
 398       return INT_MAX;
 399
 400    case PIPE_SHADER_CAP_INTEGERS:
 401       return 1;
 402
 403    case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 404    case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 405    case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 406    case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 407    case PIPE_SHADER_CAP_SUBROUTINES:
 408    case PIPE_SHADER_CAP_INT64_ATOMICS:
 409    case PIPE_SHADER_CAP_FP16:
 410       return 0; /* not implemented */
 411
 412    case PIPE_SHADER_CAP_PREFERRED_IR:
 413       return PIPE_SHADER_IR_NIR;
 414
 415    case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 416       return 0; /* not implemented */
 417
 418    case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 419       return MIN2(screen->props.limits.maxPerStageDescriptorSampledImages,
 420                   PIPE_MAX_SHADER_SAMPLER_VIEWS);
 421
 422    case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 423    case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 424    case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 425       return 0; /* not implemented */
 426
 427    case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 428       return 0; /* no idea */
 429
 430    case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 431       return 32; /* arbitrary */
 432
 433    case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 434       /* TODO: this limitation is dumb, and will need some fixes in mesa */
 435       return MIN2(screen->props.limits.maxPerStageDescriptorStorageBuffers, 8);
 436
 437    case PIPE_SHADER_CAP_SUPPORTED_IRS:
 438       return (1 << PIPE_SHADER_IR_NIR) | (1 << PIPE_SHADER_IR_TGSI);
 439
 440    case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 441       return MIN2(screen->props.limits.maxPerStageDescriptorStorageImages,
 442                   PIPE_MAX_SHADER_IMAGES);
 443
 444    case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
 445    case PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS:
 446       return 0; /* unsure */
 447
 448    case PIPE_SHADER_CAP_TGSI_LDEXP_SUPPORTED:
 449    case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS:
 450    case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS:
 451    case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 452       return 0; /* not implemented */
 453    }
 454
 455    /* should only get here on unhandled cases */
 456    return 0;
 457 }
 458
 459 static VkSampleCountFlagBits
 460 vk_sample_count_flags(uint32_t sample_count)
 461 {
 462    switch (sample_count) {
 463    case 1: return VK_SAMPLE_COUNT_1_BIT;
 464    case 2: return VK_SAMPLE_COUNT_2_BIT;
 465    case 4: return VK_SAMPLE_COUNT_4_BIT;
 466    case 8: return VK_SAMPLE_COUNT_8_BIT;
 467    case 16: return VK_SAMPLE_COUNT_16_BIT;
 468    case 32: return VK_SAMPLE_COUNT_32_BIT;
 469    case 64: return VK_SAMPLE_COUNT_64_BIT;
 470    default:
 471       return 0;
 472    }
 473 }
 474
 475 static bool
 476 zink_is_format_supported(struct pipe_screen *pscreen,
 477                          enum pipe_format format,
 478                          enum pipe_texture_target target,
 479                          unsigned sample_count,
 480                          unsigned storage_sample_count,
 481                          unsigned bind)
 482 {
 483    struct zink_screen *screen = zink_screen(pscreen);
 484
 485    if (format == PIPE_FORMAT_NONE)
 486       return screen->props.limits.framebufferNoAttachmentsSampleCounts &
 487              vk_sample_count_flags(sample_count);
 488
 489    VkFormat vkformat = zink_get_format(screen, format);
 490    if (vkformat == VK_FORMAT_UNDEFINED)
 491       return false;
 492
 493    if (sample_count >= 1) {
 494       VkSampleCountFlagBits sample_mask = vk_sample_count_flags(sample_count);
 495       if (!sample_mask)
 496          return false;
 497       const struct util_format_description *desc = util_format_description(format);
 498       if (util_format_is_depth_or_stencil(format)) {
 499          if (util_format_has_depth(desc)) {
 500             if (bind & PIPE_BIND_DEPTH_STENCIL &&
 501                 (screen->props.limits.framebufferDepthSampleCounts & sample_mask) != sample_mask)
 502                return false;
 503             if (bind & PIPE_BIND_SAMPLER_VIEW &&
 504                 (screen->props.limits.sampledImageDepthSampleCounts & sample_mask) != sample_mask)
 505                return false;
 506          }
 507          if (util_format_has_stencil(desc)) {
 508             if (bind & PIPE_BIND_DEPTH_STENCIL &&
 509                 (screen->props.limits.framebufferStencilSampleCounts & sample_mask) != sample_mask)
 510                return false;
 511             if (bind & PIPE_BIND_SAMPLER_VIEW &&
 512                 (screen->props.limits.sampledImageStencilSampleCounts & sample_mask) != sample_mask)
 513                return false;
 514          }
 515       } else if (util_format_is_pure_integer(format)) {
 516          if (bind & PIPE_BIND_RENDER_TARGET &&
 517              !(screen->props.limits.framebufferColorSampleCounts & sample_mask))
 518             return false;
 519          if (bind & PIPE_BIND_SAMPLER_VIEW &&
 520              !(screen->props.limits.sampledImageIntegerSampleCounts & sample_mask))
 521             return false;
 522       } else {
 523          if (bind & PIPE_BIND_RENDER_TARGET &&
 524              !(screen->props.limits.framebufferColorSampleCounts & sample_mask))
 525             return false;
 526          if (bind & PIPE_BIND_SAMPLER_VIEW &&
 527              !(screen->props.limits.sampledImageColorSampleCounts & sample_mask))
 528             return false;
 529       }
 530    }
 531
 532    VkFormatProperties props;
 533    vkGetPhysicalDeviceFormatProperties(screen->pdev, vkformat, &props);
 534
 535    if (target == PIPE_BUFFER) {
 536       if (bind & PIPE_BIND_VERTEX_BUFFER &&
 537           !(props.bufferFeatures & VK_FORMAT_FEATURE_VERTEX_BUFFER_BIT))
 538          return false;
 539    } else {
 540       /* all other targets are texture-targets */
 541       if (bind & PIPE_BIND_RENDER_TARGET &&
 542           !(props.optimalTilingFeatures & VK_FORMAT_FEATURE_COLOR_ATTACHMENT_BIT))
 543          return false;
 544
 545       if (bind & PIPE_BIND_BLENDABLE &&
 546          !(props.optimalTilingFeatures & VK_FORMAT_FEATURE_COLOR_ATTACHMENT_BLEND_BIT))
 547         return false;
 548
 549       if (bind & PIPE_BIND_SAMPLER_VIEW &&
 550           !(props.optimalTilingFeatures & VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT))
 551          return false;
 552
 553       if (bind & PIPE_BIND_DEPTH_STENCIL &&
 554           !(props.optimalTilingFeatures & VK_FORMAT_FEATURE_DEPTH_STENCIL_ATTACHMENT_BIT))
 555          return false;
 556    }
 557
 558    if (util_format_is_compressed(format)) {
 559       const struct util_format_description *desc = util_format_description(format);
 560       if (desc->layout == UTIL_FORMAT_LAYOUT_BPTC &&
 561           !screen->feats.textureCompressionBC)
 562          return false;
 563    }
 564
 565    return true;
 566 }
 567
 568 static void
 569 zink_destroy_screen(struct pipe_screen *pscreen)
 570 {
 571    struct zink_screen *screen = zink_screen(pscreen);
 572    slab_destroy_parent(&screen->transfer_pool);
 573    FREE(screen);
 574 }
 575
 576 static VkInstance
 577 create_instance()
 578 {
 579    VkApplicationInfo ai = {};
 580    ai.sType = VK_STRUCTURE_TYPE_APPLICATION_INFO;
 581
 582    char proc_name[128];
 583    if (os_get_process_name(proc_name, ARRAY_SIZE(proc_name)))
 584       ai.pApplicationName = proc_name;
 585    else
 586       ai.pApplicationName = "unknown";
 587
 588    ai.pEngineName = "mesa zink";
 589    ai.apiVersion = VK_API_VERSION_1_0;
 590
 591    const char *extensions[] = {
 592       VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME,
 593       VK_KHR_EXTERNAL_MEMORY_CAPABILITIES_EXTENSION_NAME,
 594    };
 595
 596    VkInstanceCreateInfo ici = {};
 597    ici.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO;
 598    ici.pApplicationInfo = &ai;
 599    ici.ppEnabledExtensionNames = extensions;
 600    ici.enabledExtensionCount = ARRAY_SIZE(extensions);
 601
 602    VkInstance instance = VK_NULL_HANDLE;
 603    VkResult err = vkCreateInstance(&ici, NULL, &instance);
 604    if (err != VK_SUCCESS)
 605       return VK_NULL_HANDLE;
 606
 607    return instance;
 608 }
 609
 610 static VkPhysicalDevice
 611 choose_pdev(const VkInstance instance)
 612 {
 613    uint32_t i, pdev_count;
 614    VkPhysicalDevice *pdevs, pdev;
 615    vkEnumeratePhysicalDevices(instance, &pdev_count, NULL);
 616    assert(pdev_count > 0);
 617
 618    pdevs = malloc(sizeof(*pdevs) * pdev_count);
 619    vkEnumeratePhysicalDevices(instance, &pdev_count, pdevs);
 620    assert(pdev_count > 0);
 621
 622    pdev = pdevs[0];
 623    for (i = 0; i < pdev_count; ++i) {
 624       VkPhysicalDeviceProperties props;
 625       vkGetPhysicalDeviceProperties(pdevs[i], &props);
 626       if (props.deviceType == VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU) {
 627          pdev = pdevs[i];
 628          break;
 629       }
 630    }
 631    free(pdevs);
 632    return pdev;
 633 }
 634
 635 static uint32_t
 636 find_gfx_queue(const VkPhysicalDevice pdev)
 637 {
 638    uint32_t num_queues;
 639    vkGetPhysicalDeviceQueueFamilyProperties(pdev, &num_queues, NULL);
 640    assert(num_queues > 0);
 641
 642    VkQueueFamilyProperties *props = malloc(sizeof(*props) * num_queues);
 643    vkGetPhysicalDeviceQueueFamilyProperties(pdev, &num_queues, props);
 644
 645    for (uint32_t i = 0; i < num_queues; i++) {
 646       if (props[i].queueFlags & VK_QUEUE_GRAPHICS_BIT) {
 647          free(props);
 648          return i;
 649       }
 650    }
 651
 652    return UINT32_MAX;
 653 }
 654
 655 static void
 656 zink_flush_frontbuffer(struct pipe_screen *pscreen,
 657                        struct pipe_resource *pres,
 658                        unsigned level, unsigned layer,
 659                        void *winsys_drawable_handle,
 660                        struct pipe_box *sub_box)
 661 {
 662    struct zink_screen *screen = zink_screen(pscreen);
 663    struct sw_winsys *winsys = screen->winsys;
 664    struct zink_resource *res = zink_resource(pres);
 665
 666    if (!winsys)
 667      return;
 668    void *map = winsys->displaytarget_map(winsys, res->dt, 0);
 669
 670    if (map) {
 671       VkImageSubresource isr = {};
 672       isr.aspectMask = res->aspect;
 673       isr.mipLevel = level;
 674       isr.arrayLayer = layer;
 675       VkSubresourceLayout layout;
 676       vkGetImageSubresourceLayout(screen->dev, res->image, &isr, &layout);
 677
 678       void *ptr;
 679       VkResult result = vkMapMemory(screen->dev, res->mem, res->offset, res->size, 0, &ptr);
 680       if (result != VK_SUCCESS) {
 681          debug_printf("failed to map memory for display\n");
 682          return;
 683       }
 684       for (int i = 0; i < pres->height0; ++i) {
 685          uint8_t *src = (uint8_t *)ptr + i * layout.rowPitch;
 686          uint8_t *dst = (uint8_t *)map + i * res->dt_stride;
 687          memcpy(dst, src, res->dt_stride);
 688       }
 689       vkUnmapMemory(screen->dev, res->mem);
 690    }
 691
 692    winsys->displaytarget_unmap(winsys, res->dt);
 693
 694    assert(res->dt);
 695    if (res->dt)
 696       winsys->displaytarget_display(winsys, res->dt, winsys_drawable_handle, sub_box);
 697 }
 698
 699 static struct pipe_screen *
 700 zink_internal_create_screen(struct sw_winsys *winsys, int fd)
 701 {
 702    struct zink_screen *screen = CALLOC_STRUCT(zink_screen);
 703    if (!screen)
 704       return NULL;
 705
 706    zink_debug = debug_get_option_zink_debug();
 707
 708    screen->instance = create_instance();
 709    screen->pdev = choose_pdev(screen->instance);
 710    screen->gfx_queue = find_gfx_queue(screen->pdev);
 711
 712    vkGetPhysicalDeviceProperties(screen->pdev, &screen->props);
 713    vkGetPhysicalDeviceFeatures(screen->pdev, &screen->feats);
 714    vkGetPhysicalDeviceMemoryProperties(screen->pdev, &screen->mem_props);
 715
 716    screen->have_X8_D24_UNORM_PACK32 = zink_is_depth_format_supported(screen,
 717                                               VK_FORMAT_X8_D24_UNORM_PACK32);
 718    screen->have_D24_UNORM_S8_UINT = zink_is_depth_format_supported(screen,
 719                                               VK_FORMAT_D24_UNORM_S8_UINT);
 720
 721    uint32_t num_extensions = 0;
 722    if (vkEnumerateDeviceExtensionProperties(screen->pdev, NULL,
 723        &num_extensions, NULL) == VK_SUCCESS && num_extensions > 0) {
 724       VkExtensionProperties *extensions = MALLOC(sizeof(VkExtensionProperties) *
 725                                                 num_extensions);
 726       if (extensions) {
 727          vkEnumerateDeviceExtensionProperties(screen->pdev, NULL,
 728                                               &num_extensions, extensions);
 729
 730          for (uint32_t  i = 0; i < num_extensions; ++i) {
 731             if (!strcmp(extensions[i].extensionName,
 732                         VK_KHR_MAINTENANCE1_EXTENSION_NAME))
 733                screen->have_KHR_maintenance1 = true;
 734             if (!strcmp(extensions[i].extensionName,
 735                         VK_KHR_EXTERNAL_MEMORY_FD_EXTENSION_NAME))
 736                screen->have_KHR_external_memory_fd = true;
 737          }
 738          FREE(extensions);
 739       }
 740    }
 741
 742    if (!screen->have_KHR_maintenance1) {
 743       debug_printf("ZINK: VK_KHR_maintenance1 required!\n");
 744       goto fail;
 745    }
 746
 747    VkDeviceQueueCreateInfo qci = {};
 748    float dummy = 0.0f;
 749    qci.sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
 750    qci.queueFamilyIndex = screen->gfx_queue;
 751    qci.queueCount = 1;
 752    qci.pQueuePriorities = &dummy;
 753
 754    VkDeviceCreateInfo dci = {};
 755    dci.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
 756    dci.queueCreateInfoCount = 1;
 757    dci.pQueueCreateInfos = &qci;
 758    dci.pEnabledFeatures = &screen->feats;
 759    const char *extensions[3] = {
 760       VK_KHR_MAINTENANCE1_EXTENSION_NAME,
 761    };
 762    num_extensions = 1;
 763
 764    if (fd >= 0 && !screen->have_KHR_external_memory_fd) {
 765       debug_printf("ZINK: KHR_external_memory_fd required!\n");
 766       goto fail;
 767    }
 768
 769    if (screen->have_KHR_external_memory_fd) {
 770       extensions[num_extensions++] = VK_KHR_EXTERNAL_MEMORY_EXTENSION_NAME;
 771       extensions[num_extensions++] = VK_KHR_EXTERNAL_MEMORY_FD_EXTENSION_NAME;
 772    }
 773    assert(num_extensions <= ARRAY_SIZE(extensions));
 774
 775    dci.ppEnabledExtensionNames = extensions;
 776    dci.enabledExtensionCount = num_extensions;
 777    if (vkCreateDevice(screen->pdev, &dci, NULL, &screen->dev) != VK_SUCCESS)
 778       goto fail;
 779
 780    screen->winsys = winsys;
 781
 782    screen->base.get_name = zink_get_name;
 783    screen->base.get_vendor = zink_get_vendor;
 784    screen->base.get_device_vendor = zink_get_device_vendor;
 785    screen->base.get_param = zink_get_param;
 786    screen->base.get_paramf = zink_get_paramf;
 787    screen->base.get_shader_param = zink_get_shader_param;
 788    screen->base.get_compiler_options = zink_get_compiler_options;
 789    screen->base.is_format_supported = zink_is_format_supported;
 790    screen->base.context_create = zink_context_create;
 791    screen->base.flush_frontbuffer = zink_flush_frontbuffer;
 792    screen->base.destroy = zink_destroy_screen;
 793
 794    zink_screen_resource_init(&screen->base);
 795    zink_screen_fence_init(&screen->base);
 796
 797    slab_create_parent(&screen->transfer_pool, sizeof(struct zink_transfer), 16);
 798
 799    return &screen->base;
 800
 801 fail:
 802    FREE(screen);
 803    return NULL;
 804 }
 805
 806 struct pipe_screen *
 807 zink_create_screen(struct sw_winsys *winsys)
 808 {
 809    return zink_internal_create_screen(winsys, -1);
 810 }
 811
 812 struct pipe_screen *
 813 zink_drm_create_screen(int fd)
 814 {
 815    return zink_internal_create_screen(NULL, fd);
 816 }