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