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