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/u_math.h"
  35 #include "util/u_memory.h"
  36 #include "util/u_screen.h"
  37 #include "util/u_string.h"
  38
  39 #include "state_tracker/sw_winsys.h"
  40
  41 static const struct debug_named_value
  42 debug_options[] = {
  43    { "nir", ZINK_DEBUG_NIR, "Dump NIR during program compile" },
  44    { "spirv", ZINK_DEBUG_SPIRV, "Dump SPIR-V during program compile" },
  45    { "tgsi", ZINK_DEBUG_TGSI, "Dump TGSI during program compile" },
  46    DEBUG_NAMED_VALUE_END
  47 };
  48
  49 DEBUG_GET_ONCE_FLAGS_OPTION(zink_debug, "ZINK_DEBUG", debug_options, 0)
  50
  51 uint32_t
  52 zink_debug;
  53
  54 static const char *
  55 zink_get_vendor(struct pipe_screen *pscreen)
  56 {
  57    return "Collabora Ltd";
  58 }
  59
  60 static const char *
  61 zink_get_device_vendor(struct pipe_screen *pscreen)
  62 {
  63    struct zink_screen *screen = zink_screen(pscreen);
  64    static char buf[1000];
  65    snprintf(buf, sizeof(buf), "Unknown (vendor-id: 0x%04x)", screen->props.vendorID);
  66    return buf;
  67 }
  68
  69 static const char *
  70 zink_get_name(struct pipe_screen *pscreen)
  71 {
  72    struct zink_screen *screen = zink_screen(pscreen);
  73    static char buf[1000];
  74    snprintf(buf, sizeof(buf), "zink (%s)", screen->props.deviceName);
  75    return buf;
  76 }
  77
  78 static int
  79 get_video_mem(struct zink_screen *screen)
  80 {
  81    VkDeviceSize size = 0;
  82    for (uint32_t i = 0; i < screen->mem_props.memoryHeapCount; ++i)
  83       size += screen->mem_props.memoryHeaps[i].size;
  84    return (int)(size >> 20);
  85 }
  86
  87 static int
  88 zink_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
  89 {
  90    struct zink_screen *screen = zink_screen(pscreen);
  91
  92    switch (param) {
  93    case PIPE_CAP_NPOT_TEXTURES:
  94       return 1;
  95
  96    case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
  97       return screen->props.limits.maxFragmentDualSrcAttachments;
  98
  99    case PIPE_CAP_MAX_RENDER_TARGETS:
 100       return screen->props.limits.maxColorAttachments;
 101
 102    case PIPE_CAP_TEXTURE_SWIZZLE:
 103       return 1;
 104
 105    case PIPE_CAP_MAX_TEXTURE_2D_SIZE:
 106       return screen->props.limits.maxImageDimension2D;
 107    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 108       return 1 + util_logbase2(screen->props.limits.maxImageDimension3D);
 109    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 110       return 1 + util_logbase2(screen->props.limits.maxImageDimensionCube);
 111
 112    case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 113       return 1;
 114
 115    case PIPE_CAP_FRAGMENT_SHADER_TEXTURE_LOD:
 116    case PIPE_CAP_FRAGMENT_SHADER_DERIVATIVES:
 117    case PIPE_CAP_VERTEX_SHADER_SATURATE:
 118       return 1;
 119
 120    case PIPE_CAP_INDEP_BLEND_ENABLE:
 121    case PIPE_CAP_INDEP_BLEND_FUNC:
 122       return 1;
 123
 124    case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 125       return screen->props.limits.maxImageArrayLayers;
 126
 127 #if 0 /* TODO: Enable me */
 128    case PIPE_CAP_DEPTH_CLIP_DISABLE:
 129       return 0;
 130 #endif
 131
 132 #if 0 /* TODO: Enable me */
 133    case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 134       return 1;
 135 #endif
 136
 137    case PIPE_CAP_SEAMLESS_CUBE_MAP:
 138       return 1;
 139
 140    case PIPE_CAP_MIN_TEXEL_OFFSET:
 141       return screen->props.limits.minTexelOffset;
 142    case PIPE_CAP_MAX_TEXEL_OFFSET:
 143       return screen->props.limits.maxTexelOffset;
 144
 145    case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
 146       return 1;
 147
 148    case PIPE_CAP_GLSL_FEATURE_LEVEL:
 149    case PIPE_CAP_GLSL_FEATURE_LEVEL_COMPATIBILITY:
 150       return 450; /* unsure (probably wrong) */
 151
 152 #if 0 /* TODO: Enable me */
 153    case PIPE_CAP_COMPUTE:
 154       return 1;
 155 #endif
 156
 157    case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
 158       return screen->props.limits.minUniformBufferOffsetAlignment;
 159
 160    case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 161       return screen->props.limits.minMemoryMapAlignment;
 162
 163    case PIPE_CAP_CUBE_MAP_ARRAY:
 164       return screen->feats.imageCubeArray;
 165
 166    case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 167       return 0; /* unsure */
 168
 169    case PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE:
 170       return screen->props.limits.maxTexelBufferElements;
 171
 172    case PIPE_CAP_ENDIANNESS:
 173       return PIPE_ENDIAN_NATIVE; /* unsure */
 174
 175    case PIPE_CAP_MAX_VIEWPORTS:
 176       return screen->props.limits.maxViewports;
 177
 178    case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
 179       return 1;
 180
 181    case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
 182       return screen->props.limits.maxGeometryOutputVertices;
 183    case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
 184       return screen->props.limits.maxGeometryOutputComponents;
 185
 186 #if 0 /* TODO: Enable me. Enables ARB_texture_gather */
 187    case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
 188       return 4;
 189 #endif
 190
 191    case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
 192       return screen->props.limits.minTexelGatherOffset;
 193    case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
 194       return screen->props.limits.maxTexelGatherOffset;
 195
 196    case PIPE_CAP_VENDOR_ID:
 197       return screen->props.vendorID;
 198    case PIPE_CAP_DEVICE_ID:
 199       return screen->props.deviceID;
 200
 201    case PIPE_CAP_ACCELERATED:
 202       return 1;
 203    case PIPE_CAP_VIDEO_MEMORY:
 204       return get_video_mem(screen);
 205    case PIPE_CAP_UMA:
 206       /* inaccurate */
 207       return screen->props.deviceType == VK_PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU;
 208
 209    case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
 210       return screen->props.limits.maxVertexInputBindingStride;
 211
 212 #if 0 /* TODO: Enable me */
 213    case PIPE_CAP_SAMPLER_VIEW_TARGET:
 214       return 1;
 215 #endif
 216
 217 #if 0 /* TODO: Enable me */
 218    case PIPE_CAP_TEXTURE_FLOAT_LINEAR:
 219    case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
 220       return 1;
 221 #endif
 222
 223    case PIPE_CAP_SHAREABLE_SHADERS:
 224       return 1;
 225
 226 #if 0 /* TODO: Enable me. Enables GL_ARB_shader_storage_buffer_object */
 227    case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
 228       return screen->props.limits.minStorageBufferOffsetAlignment;
 229 #endif
 230
 231    case PIPE_CAP_PCI_GROUP:
 232    case PIPE_CAP_PCI_BUS:
 233    case PIPE_CAP_PCI_DEVICE:
 234    case PIPE_CAP_PCI_FUNCTION:
 235       return 0; /* TODO: figure these out */
 236
 237 #if 0 /* TODO: Enable me */
 238    case PIPE_CAP_CULL_DISTANCE:
 239       return screen->feats.shaderCullDistance;
 240 #endif
 241
 242    case PIPE_CAP_VIEWPORT_SUBPIXEL_BITS:
 243       return screen->props.limits.viewportSubPixelBits;
 244
 245    case PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY:
 246       return 0; /* not sure */
 247
 248    case PIPE_CAP_MAX_GS_INVOCATIONS:
 249       return 0; /* not implemented */
 250
 251    case PIPE_CAP_MAX_COMBINED_SHADER_BUFFERS:
 252       return screen->props.limits.maxDescriptorSetStorageBuffers;
 253
 254    case PIPE_CAP_MAX_SHADER_BUFFER_SIZE:
 255       return screen->props.limits.maxStorageBufferRange; /* unsure */
 256
 257    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 258    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 259       return 1;
 260
 261    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 262    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 263       return 0;
 264
 265    case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
 266       return 1;
 267
 268    default:
 269       return u_pipe_screen_get_param_defaults(pscreen, param);
 270    }
 271 }
 272
 273 static float
 274 zink_get_paramf(struct pipe_screen *pscreen, enum pipe_capf param)
 275 {
 276    struct zink_screen *screen = zink_screen(pscreen);
 277
 278    switch (param) {
 279    case PIPE_CAPF_MAX_LINE_WIDTH:
 280    case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 281       return screen->props.limits.lineWidthRange[1];
 282
 283    case PIPE_CAPF_MAX_POINT_WIDTH:
 284    case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 285       return screen->props.limits.pointSizeRange[1];
 286
 287    case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 288       return screen->props.limits.maxSamplerAnisotropy;
 289
 290    case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 291       return screen->props.limits.maxSamplerLodBias;
 292
 293    case PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE:
 294    case PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE:
 295    case PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY:
 296       return 0.0f; /* not implemented */
 297    }
 298
 299    /* should only get here on unhandled cases */
 300    return 0.0;
 301 }
 302
 303 static int
 304 zink_get_shader_param(struct pipe_screen *pscreen,
 305                        enum pipe_shader_type shader,
 306                        enum pipe_shader_cap param)
 307 {
 308    struct zink_screen *screen = zink_screen(pscreen);
 309
 310    switch (param) {
 311    case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 312    case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 313    case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 314    case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 315    case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 316       if (shader == PIPE_SHADER_VERTEX ||
 317           shader == PIPE_SHADER_FRAGMENT)
 318          return INT_MAX;
 319       return 0;
 320
 321    case PIPE_SHADER_CAP_MAX_INPUTS:
 322       switch (shader) {
 323       case PIPE_SHADER_VERTEX:
 324          return MIN2(screen->props.limits.maxVertexInputAttributes,
 325                      PIPE_MAX_SHADER_INPUTS);
 326       case PIPE_SHADER_FRAGMENT:
 327          return MIN2(screen->props.limits.maxFragmentInputComponents / 4,
 328                      PIPE_MAX_SHADER_INPUTS);
 329       default:
 330          return 0; /* unsupported stage */
 331       }
 332
 333    case PIPE_SHADER_CAP_MAX_OUTPUTS:
 334       switch (shader) {
 335       case PIPE_SHADER_VERTEX:
 336          return MIN2(screen->props.limits.maxVertexOutputComponents / 4,
 337                      PIPE_MAX_SHADER_OUTPUTS);
 338       case PIPE_SHADER_FRAGMENT:
 339          return MIN2(screen->props.limits.maxColorAttachments,
 340                 PIPE_MAX_SHADER_OUTPUTS);
 341       default:
 342          return 0; /* unsupported stage */
 343       }
 344
 345    case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 346       /* this might be a bit simplistic... */
 347       return MIN2(screen->props.limits.maxPerStageDescriptorSamplers,
 348                   PIPE_MAX_SAMPLERS);
 349
 350    case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 351       return screen->props.limits.maxUniformBufferRange;
 352
 353    case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 354       return screen->props.limits.maxPerStageDescriptorUniformBuffers;
 355
 356    case PIPE_SHADER_CAP_MAX_TEMPS:
 357       return INT_MAX;
 358
 359    case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 360    case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 361    case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 362    case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 363    case PIPE_SHADER_CAP_SUBROUTINES:
 364    case PIPE_SHADER_CAP_INTEGERS:
 365    case PIPE_SHADER_CAP_INT64_ATOMICS:
 366    case PIPE_SHADER_CAP_FP16:
 367       return 0; /* not implemented */
 368
 369    case PIPE_SHADER_CAP_PREFERRED_IR:
 370       return PIPE_SHADER_IR_NIR;
 371
 372    case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 373       return 0; /* not implemented */
 374
 375    case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 376       return MIN2(screen->props.limits.maxPerStageDescriptorSampledImages,
 377                   PIPE_MAX_SHADER_SAMPLER_VIEWS);
 378
 379    case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 380    case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 381    case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 382       return 0; /* not implemented */
 383
 384    case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 385       return 0; /* no idea */
 386
 387    case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 388       return 32; /* arbitrary */
 389
 390    case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 391       /* TODO: this limitation is dumb, and will need some fixes in mesa */
 392       return MIN2(screen->props.limits.maxPerStageDescriptorStorageBuffers, 8);
 393
 394    case PIPE_SHADER_CAP_SUPPORTED_IRS:
 395       return (1 << PIPE_SHADER_IR_NIR) | (1 << PIPE_SHADER_IR_TGSI);
 396
 397    case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 398       return screen->props.limits.maxPerStageDescriptorStorageImages;
 399
 400    case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
 401    case PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS:
 402       return 0; /* unsure */
 403
 404    case PIPE_SHADER_CAP_TGSI_LDEXP_SUPPORTED:
 405    case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS:
 406    case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS:
 407    case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 408       return 0; /* not implemented */
 409    }
 410
 411    /* should only get here on unhandled cases */
 412    return 0;
 413 }
 414
 415 static const VkFormat formats[PIPE_FORMAT_COUNT] = {
 416 #define MAP_FORMAT_NORM(FMT) \
 417    [PIPE_FORMAT_ ## FMT ## _UNORM] = VK_FORMAT_ ## FMT ## _UNORM, \
 418    [PIPE_FORMAT_ ## FMT ## _SNORM] = VK_FORMAT_ ## FMT ## _SNORM,
 419
 420 #define MAP_FORMAT_SCALED(FMT) \
 421    [PIPE_FORMAT_ ## FMT ## _USCALED] = VK_FORMAT_ ## FMT ## _USCALED, \
 422    [PIPE_FORMAT_ ## FMT ## _SSCALED] = VK_FORMAT_ ## FMT ## _SSCALED,
 423
 424 #define MAP_FORMAT_INT(FMT) \
 425    [PIPE_FORMAT_ ## FMT ## _UINT] = VK_FORMAT_ ## FMT ## _UINT, \
 426    [PIPE_FORMAT_ ## FMT ## _SINT] = VK_FORMAT_ ## FMT ## _SINT,
 427
 428 #define MAP_FORMAT_SRGB(FMT) \
 429    [PIPE_FORMAT_ ## FMT ## _SRGB] = VK_FORMAT_ ## FMT ## _SRGB,
 430
 431 #define MAP_FORMAT_FLOAT(FMT) \
 432    [PIPE_FORMAT_ ## FMT ## _FLOAT] = VK_FORMAT_ ## FMT ## _SFLOAT,
 433
 434    // one component
 435
 436    // 8-bits
 437    MAP_FORMAT_NORM(R8)
 438    MAP_FORMAT_SCALED(R8)
 439    MAP_FORMAT_INT(R8)
 440    // 16-bits
 441    MAP_FORMAT_NORM(R16)
 442    MAP_FORMAT_SCALED(R16)
 443    MAP_FORMAT_INT(R16)
 444    MAP_FORMAT_FLOAT(R16)
 445    // 32-bits
 446    MAP_FORMAT_INT(R32)
 447    MAP_FORMAT_FLOAT(R32)
 448
 449    // two components
 450
 451    // 8-bits
 452    MAP_FORMAT_NORM(R8G8)
 453    MAP_FORMAT_SCALED(R8G8)
 454    MAP_FORMAT_INT(R8G8)
 455    // 16-bits
 456    MAP_FORMAT_NORM(R16G16)
 457    MAP_FORMAT_SCALED(R16G16)
 458    MAP_FORMAT_INT(R16G16)
 459    MAP_FORMAT_FLOAT(R16G16)
 460    // 32-bits
 461    MAP_FORMAT_INT(R32G32)
 462    MAP_FORMAT_FLOAT(R32G32)
 463
 464    // three components
 465
 466    // 8-bits
 467    MAP_FORMAT_NORM(R8G8B8)
 468    MAP_FORMAT_SCALED(R8G8B8)
 469    MAP_FORMAT_INT(R8G8B8)
 470    MAP_FORMAT_SRGB(R8G8B8)
 471    // 16-bits
 472    MAP_FORMAT_NORM(R16G16B16)
 473    MAP_FORMAT_SCALED(R16G16B16)
 474    MAP_FORMAT_INT(R16G16B16)
 475    MAP_FORMAT_FLOAT(R16G16B16)
 476    // 32-bits
 477    MAP_FORMAT_INT(R32G32B32)
 478    MAP_FORMAT_FLOAT(R32G32B32)
 479
 480    // four components
 481
 482    // 8-bits
 483    MAP_FORMAT_NORM(R8G8B8A8)
 484    MAP_FORMAT_SCALED(R8G8B8A8)
 485    MAP_FORMAT_INT(R8G8B8A8)
 486    MAP_FORMAT_SRGB(R8G8B8A8)
 487    [PIPE_FORMAT_B8G8R8A8_UNORM] = VK_FORMAT_B8G8R8A8_UNORM,
 488    MAP_FORMAT_SRGB(B8G8R8A8)
 489    [PIPE_FORMAT_A8B8G8R8_SRGB] = VK_FORMAT_A8B8G8R8_SRGB_PACK32,
 490    // 16-bits
 491    MAP_FORMAT_NORM(R16G16B16A16)
 492    MAP_FORMAT_SCALED(R16G16B16A16)
 493    MAP_FORMAT_INT(R16G16B16A16)
 494    MAP_FORMAT_FLOAT(R16G16B16A16)
 495    // 32-bits
 496    MAP_FORMAT_INT(R32G32B32A32)
 497    MAP_FORMAT_FLOAT(R32G32B32A32)
 498
 499    // other color formats
 500    [PIPE_FORMAT_B5G6R5_UNORM] = VK_FORMAT_R5G6B5_UNORM_PACK16,
 501    [PIPE_FORMAT_B5G5R5A1_UNORM] = VK_FORMAT_B5G5R5A1_UNORM_PACK16,
 502    [PIPE_FORMAT_R11G11B10_FLOAT] = VK_FORMAT_B10G11R11_UFLOAT_PACK32,
 503    [PIPE_FORMAT_R9G9B9E5_FLOAT] = VK_FORMAT_E5B9G9R9_UFLOAT_PACK32,
 504    [PIPE_FORMAT_R10G10B10A2_UNORM] = VK_FORMAT_A2B10G10R10_UNORM_PACK32,
 505    [PIPE_FORMAT_B10G10R10A2_UNORM] = VK_FORMAT_A2R10G10B10_UNORM_PACK32,
 506    [PIPE_FORMAT_R10G10B10A2_UINT] = VK_FORMAT_A2B10G10R10_UINT_PACK32,
 507    [PIPE_FORMAT_B10G10R10A2_UINT] = VK_FORMAT_A2R10G10B10_UINT_PACK32,
 508
 509    // depth/stencil formats
 510    [PIPE_FORMAT_Z32_FLOAT] = VK_FORMAT_D32_SFLOAT,
 511    [PIPE_FORMAT_Z32_FLOAT_S8X24_UINT] = VK_FORMAT_D32_SFLOAT_S8_UINT,
 512    [PIPE_FORMAT_Z16_UNORM] = VK_FORMAT_D16_UNORM,
 513    [PIPE_FORMAT_X8Z24_UNORM] = VK_FORMAT_X8_D24_UNORM_PACK32,
 514    [PIPE_FORMAT_Z24_UNORM_S8_UINT] = VK_FORMAT_D24_UNORM_S8_UINT,
 515 };
 516
 517 VkFormat
 518 zink_get_format(enum pipe_format format)
 519 {
 520    return formats[format];
 521 }
 522
 523 static bool
 524 zink_is_format_supported(struct pipe_screen *pscreen,
 525                          enum pipe_format format,
 526                          enum pipe_texture_target target,
 527                          unsigned sample_count,
 528                          unsigned storage_sample_count,
 529                          unsigned bind)
 530 {
 531    struct zink_screen *screen = zink_screen(pscreen);
 532
 533    if (sample_count > 1)
 534       return FALSE;
 535
 536    VkFormat vkformat = formats[format];
 537    if (vkformat == VK_FORMAT_UNDEFINED)
 538       return FALSE;
 539
 540    VkFormatProperties props;
 541    vkGetPhysicalDeviceFormatProperties(screen->pdev, vkformat, &props);
 542
 543    if (target == PIPE_BUFFER) {
 544       if (bind & PIPE_BIND_VERTEX_BUFFER &&
 545           !(props.bufferFeatures & VK_FORMAT_FEATURE_VERTEX_BUFFER_BIT))
 546          return FALSE;
 547    } else {
 548       /* all other targets are texture-targets */
 549       if (bind & PIPE_BIND_RENDER_TARGET &&
 550           !(props.optimalTilingFeatures & VK_FORMAT_FEATURE_COLOR_ATTACHMENT_BIT))
 551          return FALSE;
 552
 553       if (bind & PIPE_BIND_BLENDABLE &&
 554          !(props.optimalTilingFeatures & VK_FORMAT_FEATURE_COLOR_ATTACHMENT_BLEND_BIT))
 555         return FALSE;
 556
 557       if (bind & PIPE_BIND_SAMPLER_VIEW &&
 558           !(props.optimalTilingFeatures & VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT))
 559          return FALSE;
 560
 561       if (bind & PIPE_BIND_DEPTH_STENCIL &&
 562           !(props.optimalTilingFeatures & VK_FORMAT_FEATURE_DEPTH_STENCIL_ATTACHMENT_BIT))
 563          return FALSE;
 564    }
 565
 566    return TRUE;
 567 }
 568
 569 static void
 570 zink_destroy_screen(struct pipe_screen *pscreen)
 571 {
 572    struct zink_screen *screen = zink_screen(pscreen);
 573    slab_destroy_parent(&screen->transfer_pool);
 574    FREE(screen);
 575 }
 576
 577 static VkInstance
 578 create_instance()
 579 {
 580    VkApplicationInfo ai = {};
 581    ai.sType = VK_STRUCTURE_TYPE_APPLICATION_INFO;
 582
 583    char proc_name[128];
 584    if (os_get_process_name(proc_name, ARRAY_SIZE(proc_name)))
 585       ai.pApplicationName = proc_name;
 586    else
 587       ai.pApplicationName = "unknown";
 588
 589    ai.pEngineName = "mesa zink";
 590    ai.apiVersion = VK_API_VERSION_1_0;
 591
 592    VkInstanceCreateInfo ici = {};
 593    ici.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO;
 594    ici.pApplicationInfo = &ai;
 595
 596    VkInstance instance = VK_NULL_HANDLE;
 597    VkResult err = vkCreateInstance(&ici, NULL, &instance);
 598    if (err != VK_SUCCESS)
 599       return VK_NULL_HANDLE;
 600
 601    return instance;
 602 }
 603
 604 static VkPhysicalDevice
 605 choose_pdev(const VkInstance instance)
 606 {
 607    uint32_t i, pdev_count;
 608    VkPhysicalDevice *pdevs, pdev;
 609    vkEnumeratePhysicalDevices(instance, &pdev_count, NULL);
 610    assert(pdev_count > 0);
 611
 612    pdevs = malloc(sizeof(*pdevs) * pdev_count);
 613    vkEnumeratePhysicalDevices(instance, &pdev_count, pdevs);
 614    assert(pdev_count > 0);
 615
 616    pdev = pdevs[0];
 617    for (i = 0; i < pdev_count; ++i) {
 618       VkPhysicalDeviceProperties props;
 619       vkGetPhysicalDeviceProperties(pdevs[i], &props);
 620       if (props.deviceType == VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU) {
 621          pdev = pdevs[i];
 622          break;
 623       }
 624    }
 625    free(pdevs);
 626    return pdev;
 627 }
 628
 629 static uint32_t
 630 find_gfx_queue(const VkPhysicalDevice pdev)
 631 {
 632    uint32_t num_queues;
 633    vkGetPhysicalDeviceQueueFamilyProperties(pdev, &num_queues, NULL);
 634    assert(num_queues > 0);
 635
 636    VkQueueFamilyProperties *props = malloc(sizeof(*props) * num_queues);
 637    vkGetPhysicalDeviceQueueFamilyProperties(pdev, &num_queues, props);
 638
 639    for (uint32_t i = 0; i < num_queues; i++) {
 640       if (props[i].queueFlags & VK_QUEUE_GRAPHICS_BIT) {
 641          free(props);
 642          return i;
 643       }
 644    }
 645
 646    return UINT32_MAX;
 647 }
 648
 649 static void
 650 zink_flush_frontbuffer(struct pipe_screen *pscreen,
 651                        struct pipe_resource *pres,
 652                        unsigned level, unsigned layer,
 653                        void *winsys_drawable_handle,
 654                        struct pipe_box *sub_box)
 655 {
 656    struct zink_screen *screen = zink_screen(pscreen);
 657    struct sw_winsys *winsys = screen->winsys;
 658    struct zink_resource *res = zink_resource(pres);
 659
 660    void *map = winsys->displaytarget_map(winsys, res->dt, 0);
 661
 662    if (map) {
 663       VkImageSubresource isr = {};
 664       isr.aspectMask = res->aspect;
 665       isr.mipLevel = level;
 666       isr.arrayLayer = layer;
 667       VkSubresourceLayout layout;
 668       vkGetImageSubresourceLayout(screen->dev, res->image, &isr, &layout);
 669
 670       void *ptr;
 671       VkResult result = vkMapMemory(screen->dev, res->mem, res->offset, res->size, 0, &ptr);
 672       if (result != VK_SUCCESS) {
 673          debug_printf("failed to map memory for display\n");
 674          return;
 675       }
 676       for (int i = 0; i < pres->height0; ++i) {
 677          uint8_t *src = (uint8_t *)ptr + i * layout.rowPitch;
 678          uint8_t *dst = (uint8_t *)map + i * res->dt_stride;
 679          memcpy(dst, src, res->dt_stride);
 680       }
 681       vkUnmapMemory(screen->dev, res->mem);
 682    }
 683
 684    winsys->displaytarget_unmap(winsys, res->dt);
 685
 686    assert(res->dt);
 687    if (res->dt)
 688       winsys->displaytarget_display(winsys, res->dt, winsys_drawable_handle, sub_box);
 689 }
 690
 691 struct pipe_screen *
 692 zink_create_screen(struct sw_winsys *winsys)
 693 {
 694    struct zink_screen *screen = CALLOC_STRUCT(zink_screen);
 695    if (!screen)
 696       return NULL;
 697
 698    zink_debug = debug_get_option_zink_debug();
 699
 700    screen->instance = create_instance();
 701    screen->pdev = choose_pdev(screen->instance);
 702    screen->gfx_queue = find_gfx_queue(screen->pdev);
 703
 704    vkGetPhysicalDeviceProperties(screen->pdev, &screen->props);
 705    vkGetPhysicalDeviceFeatures(screen->pdev, &screen->feats);
 706    vkGetPhysicalDeviceMemoryProperties(screen->pdev, &screen->mem_props);
 707
 708    VkDeviceQueueCreateInfo qci = {};
 709    float dummy = 0.0f;
 710    qci.sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
 711    qci.queueFamilyIndex = screen->gfx_queue;
 712    qci.queueCount = 1;
 713    qci.pQueuePriorities = &dummy;
 714
 715    VkDeviceCreateInfo dci = {};
 716    dci.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
 717    dci.queueCreateInfoCount = 1;
 718    dci.pQueueCreateInfos = &qci;
 719    dci.pEnabledFeatures = &screen->feats;
 720    const char *extensions[] = {
 721       VK_KHR_MAINTENANCE1_EXTENSION_NAME
 722    };
 723    dci.ppEnabledExtensionNames = extensions;
 724    dci.enabledExtensionCount = ARRAY_SIZE(extensions);
 725    if (vkCreateDevice(screen->pdev, &dci, NULL, &screen->dev) != VK_SUCCESS)
 726       goto fail;
 727
 728    screen->winsys = winsys;
 729
 730    screen->base.get_name = zink_get_name;
 731    screen->base.get_vendor = zink_get_vendor;
 732    screen->base.get_device_vendor = zink_get_device_vendor;
 733    screen->base.get_param = zink_get_param;
 734    screen->base.get_paramf = zink_get_paramf;
 735    screen->base.get_shader_param = zink_get_shader_param;
 736    screen->base.get_compiler_options = zink_get_compiler_options;
 737    screen->base.is_format_supported = zink_is_format_supported;
 738    screen->base.context_create = zink_context_create;
 739    screen->base.flush_frontbuffer = zink_flush_frontbuffer;
 740    screen->base.destroy = zink_destroy_screen;
 741
 742    zink_screen_resource_init(&screen->base);
 743    zink_screen_fence_init(&screen->base);
 744
 745    slab_create_parent(&screen->transfer_pool, sizeof(struct zink_transfer), 16);
 746
 747    return &screen->base;
 748
 749 fail:
 750    FREE(screen);
 751    return NULL;
 752 }