src/gallium/drivers/swr/swr_screen.cpp

   1 /****************************************************************************
   2  * Copyright (C) 2015 Intel Corporation.   All Rights Reserved.
   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  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  ***************************************************************************/
  23
  24 #include "swr_context.h"
  25 #include "swr_public.h"
  26 #include "swr_screen.h"
  27 #include "swr_resource.h"
  28 #include "swr_fence.h"
  29 #include "gen_knobs.h"
  30
  31 #include "pipe/p_screen.h"
  32 #include "pipe/p_defines.h"
  33 #include "util/u_memory.h"
  34 #include "util/u_format.h"
  35 #include "util/u_inlines.h"
  36 #include "util/u_cpu_detect.h"
  37 #include "util/u_format_s3tc.h"
  38 #include "util/u_string.h"
  39
  40 #include "state_tracker/sw_winsys.h"
  41
  42 #include "jit_api.h"
  43
  44 #include "memory/TilingFunctions.h"
  45
  46 #include <stdio.h>
  47 #include <map>
  48
  49 /*
  50  * Max texture sizes
  51  * XXX Check max texture size values against core and sampler.
  52  */
  53 #define SWR_MAX_TEXTURE_SIZE (4 * 1024 * 1024 * 1024ULL) /* 4GB */
  54 #define SWR_MAX_TEXTURE_2D_LEVELS 14  /* 8K x 8K for now */
  55 #define SWR_MAX_TEXTURE_3D_LEVELS 12  /* 2K x 2K x 2K for now */
  56 #define SWR_MAX_TEXTURE_CUBE_LEVELS 14  /* 8K x 8K for now */
  57 #define SWR_MAX_TEXTURE_ARRAY_LAYERS 512 /* 8K x 512 / 8K x 8K x 512 */
  58
  59 /* Default max client_copy_limit */
  60 #define SWR_CLIENT_COPY_LIMIT 32768
  61
  62 /* Flag indicates creation of alternate surface, to prevent recursive loop
  63  * in resource creation when msaa_force_enable is set. */
  64 #define SWR_RESOURCE_FLAG_ALT_SURFACE (PIPE_RESOURCE_FLAG_DRV_PRIV << 0)
  65
  66
  67 static const char *
  68 swr_get_name(struct pipe_screen *screen)
  69 {
  70    static char buf[100];
  71    util_snprintf(buf, sizeof(buf), "SWR (LLVM %u.%u, %u bits)",
  72                  HAVE_LLVM >> 8, HAVE_LLVM & 0xff,
  73                  lp_native_vector_width );
  74    return buf;
  75 }
  76
  77 static const char *
  78 swr_get_vendor(struct pipe_screen *screen)
  79 {
  80    return "Intel Corporation";
  81 }
  82
  83 static boolean
  84 swr_is_format_supported(struct pipe_screen *_screen,
  85                         enum pipe_format format,
  86                         enum pipe_texture_target target,
  87                         unsigned sample_count,
  88                         unsigned bind)
  89 {
  90    struct swr_screen *screen = swr_screen(_screen);
  91    struct sw_winsys *winsys = screen->winsys;
  92    const struct util_format_description *format_desc;
  93
  94    assert(target == PIPE_BUFFER || target == PIPE_TEXTURE_1D
  95           || target == PIPE_TEXTURE_1D_ARRAY
  96           || target == PIPE_TEXTURE_2D
  97           || target == PIPE_TEXTURE_2D_ARRAY
  98           || target == PIPE_TEXTURE_RECT
  99           || target == PIPE_TEXTURE_3D
 100           || target == PIPE_TEXTURE_CUBE
 101           || target == PIPE_TEXTURE_CUBE_ARRAY);
 102
 103    format_desc = util_format_description(format);
 104    if (!format_desc)
 105       return FALSE;
 106
 107    if ((sample_count > screen->msaa_max_count)
 108       || !util_is_power_of_two(sample_count))
 109       return FALSE;
 110
 111    if (bind & PIPE_BIND_DISPLAY_TARGET) {
 112       if (!winsys->is_displaytarget_format_supported(winsys, bind, format))
 113          return FALSE;
 114    }
 115
 116    if (bind & PIPE_BIND_RENDER_TARGET) {
 117       if (format_desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS)
 118          return FALSE;
 119
 120       if (mesa_to_swr_format(format) == (SWR_FORMAT)-1)
 121          return FALSE;
 122
 123       /*
 124        * Although possible, it is unnatural to render into compressed or YUV
 125        * surfaces. So disable these here to avoid going into weird paths
 126        * inside the state trackers.
 127        */
 128       if (format_desc->block.width != 1 || format_desc->block.height != 1)
 129          return FALSE;
 130    }
 131
 132    if (bind & PIPE_BIND_DEPTH_STENCIL) {
 133       if (format_desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS)
 134          return FALSE;
 135
 136       if (mesa_to_swr_format(format) == (SWR_FORMAT)-1)
 137          return FALSE;
 138    }
 139
 140    if (format_desc->layout == UTIL_FORMAT_LAYOUT_BPTC ||
 141        format_desc->layout == UTIL_FORMAT_LAYOUT_ASTC) {
 142       return FALSE;
 143    }
 144
 145    if (format_desc->layout == UTIL_FORMAT_LAYOUT_ETC &&
 146        format != PIPE_FORMAT_ETC1_RGB8) {
 147       return FALSE;
 148    }
 149
 150    if (format_desc->layout == UTIL_FORMAT_LAYOUT_S3TC) {
 151       return util_format_s3tc_enabled;
 152    }
 153
 154    return TRUE;
 155 }
 156
 157 static int
 158 swr_get_param(struct pipe_screen *screen, enum pipe_cap param)
 159 {
 160    switch (param) {
 161       /* limits */
 162    case PIPE_CAP_MAX_RENDER_TARGETS:
 163       return PIPE_MAX_COLOR_BUFS;
 164    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 165       return SWR_MAX_TEXTURE_2D_LEVELS;
 166    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 167       return SWR_MAX_TEXTURE_3D_LEVELS;
 168    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 169       return SWR_MAX_TEXTURE_CUBE_LEVELS;
 170    case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 171       return MAX_SO_STREAMS;
 172    case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
 173    case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
 174       return MAX_ATTRIBUTES * 4;
 175    case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
 176    case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
 177       return 1024;
 178    case PIPE_CAP_MAX_VERTEX_STREAMS:
 179       return 1;
 180    case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
 181       return 2048;
 182    case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 183       return SWR_MAX_TEXTURE_ARRAY_LAYERS;
 184    case PIPE_CAP_MIN_TEXEL_OFFSET:
 185       return -8;
 186    case PIPE_CAP_MAX_TEXEL_OFFSET:
 187       return 7;
 188    case PIPE_CAP_GLSL_FEATURE_LEVEL:
 189       return 330;
 190    case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
 191       return 16;
 192    case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 193       return 64;
 194    case PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE:
 195       return 65536;
 196    case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
 197       return 0;
 198    case PIPE_CAP_MAX_VIEWPORTS:
 199       return 1;
 200    case PIPE_CAP_ENDIANNESS:
 201       return PIPE_ENDIAN_NATIVE;
 202    case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
 203    case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
 204       return 0;
 205
 206       /* supported features */
 207    case PIPE_CAP_NPOT_TEXTURES:
 208    case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
 209    case PIPE_CAP_MIXED_COLOR_DEPTH_BITS:
 210    case PIPE_CAP_TWO_SIDED_STENCIL:
 211    case PIPE_CAP_SM3:
 212    case PIPE_CAP_POINT_SPRITE:
 213    case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
 214    case PIPE_CAP_OCCLUSION_QUERY:
 215    case PIPE_CAP_QUERY_TIME_ELAPSED:
 216    case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
 217    case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
 218    case PIPE_CAP_TEXTURE_SHADOW_MAP:
 219    case PIPE_CAP_TEXTURE_SWIZZLE:
 220    case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 221    case PIPE_CAP_INDEP_BLEND_ENABLE:
 222    case PIPE_CAP_INDEP_BLEND_FUNC:
 223    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 224    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 225    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 226    case PIPE_CAP_DEPTH_CLIP_DISABLE:
 227    case PIPE_CAP_PRIMITIVE_RESTART:
 228    case PIPE_CAP_TGSI_INSTANCEID:
 229    case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
 230    case PIPE_CAP_START_INSTANCE:
 231    case PIPE_CAP_SEAMLESS_CUBE_MAP:
 232    case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
 233    case PIPE_CAP_CONDITIONAL_RENDER:
 234    case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
 235    case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 236    case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 237    case PIPE_CAP_USER_VERTEX_BUFFERS:
 238    case PIPE_CAP_USER_CONSTANT_BUFFERS:
 239    case PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS:
 240    case PIPE_CAP_QUERY_TIMESTAMP:
 241    case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
 242    case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
 243    case PIPE_CAP_DRAW_INDIRECT:
 244    case PIPE_CAP_UMA:
 245    case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
 246    case PIPE_CAP_CLIP_HALFZ:
 247    case PIPE_CAP_POLYGON_OFFSET_CLAMP:
 248    case PIPE_CAP_DEPTH_BOUNDS_TEST:
 249    case PIPE_CAP_CLEAR_TEXTURE:
 250    case PIPE_CAP_TEXTURE_FLOAT_LINEAR:
 251    case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
 252    case PIPE_CAP_CULL_DISTANCE:
 253    case PIPE_CAP_CUBE_MAP_ARRAY:
 254    case PIPE_CAP_DOUBLES:
 255       return 1;
 256
 257    /* MSAA support
 258     * If user has explicitly set max_sample_count = 1 (via SWR_MSAA_MAX_COUNT)
 259     * then disable all MSAA support and go back to old (FAKE_SW_MSAA) caps. */
 260    case PIPE_CAP_TEXTURE_MULTISAMPLE:
 261    case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
 262       return (swr_screen(screen)->msaa_max_count > 1) ? 1 : 0;
 263    case PIPE_CAP_FAKE_SW_MSAA:
 264       return (swr_screen(screen)->msaa_max_count > 1) ? 0 : 1;
 265
 266       /* unsupported features */
 267    case PIPE_CAP_ANISOTROPIC_FILTER:
 268    case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
 269    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 270    case PIPE_CAP_SHADER_STENCIL_EXPORT:
 271    case PIPE_CAP_TEXTURE_BARRIER:
 272    case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
 273    case PIPE_CAP_VERTEX_COLOR_CLAMPED:
 274    case PIPE_CAP_COMPUTE:
 275    case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
 276    case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
 277    case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
 278    case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
 279    case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
 280    case PIPE_CAP_TGSI_TEXCOORD:
 281    case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 282    case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
 283    case PIPE_CAP_TEXTURE_GATHER_SM5:
 284    case PIPE_CAP_TEXTURE_QUERY_LOD:
 285    case PIPE_CAP_SAMPLE_SHADING:
 286    case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
 287    case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
 288    case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
 289    case PIPE_CAP_SAMPLER_VIEW_TARGET:
 290    case PIPE_CAP_VERTEXID_NOBASE:
 291    case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
 292    case PIPE_CAP_DEVICE_RESET_STATUS_QUERY:
 293    case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:
 294    case PIPE_CAP_TGSI_TXQS:
 295    case PIPE_CAP_FORCE_PERSAMPLE_INTERP:
 296    case PIPE_CAP_SHAREABLE_SHADERS:
 297    case PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS:
 298    case PIPE_CAP_DRAW_PARAMETERS:
 299    case PIPE_CAP_TGSI_PACK_HALF_FLOAT:
 300    case PIPE_CAP_MULTI_DRAW_INDIRECT:
 301    case PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS:
 302    case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
 303    case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
 304    case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
 305    case PIPE_CAP_INVALIDATE_BUFFER:
 306    case PIPE_CAP_GENERATE_MIPMAP:
 307    case PIPE_CAP_STRING_MARKER:
 308    case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
 309    case PIPE_CAP_SURFACE_REINTERPRET_BLOCKS:
 310    case PIPE_CAP_QUERY_BUFFER_OBJECT:
 311    case PIPE_CAP_QUERY_MEMORY_INFO:
 312    case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
 313    case PIPE_CAP_PCI_GROUP:
 314    case PIPE_CAP_PCI_BUS:
 315    case PIPE_CAP_PCI_DEVICE:
 316    case PIPE_CAP_PCI_FUNCTION:
 317    case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
 318    case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
 319    case PIPE_CAP_TGSI_VOTE:
 320    case PIPE_CAP_MAX_WINDOW_RECTANGLES:
 321    case PIPE_CAP_POLYGON_OFFSET_UNITS_UNSCALED:
 322    case PIPE_CAP_VIEWPORT_SUBPIXEL_BITS:
 323    case PIPE_CAP_TGSI_ARRAY_COMPONENTS:
 324    case PIPE_CAP_TGSI_CAN_READ_OUTPUTS:
 325    case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
 326    case PIPE_CAP_NATIVE_FENCE_FD:
 327    case PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY:
 328    case PIPE_CAP_TGSI_FS_FBFETCH:
 329    case PIPE_CAP_TGSI_MUL_ZERO_WINS:
 330    case PIPE_CAP_INT64:
 331    case PIPE_CAP_INT64_DIVMOD:
 332    case PIPE_CAP_TGSI_TEX_TXF_LZ:
 333    case PIPE_CAP_TGSI_CLOCK:
 334    case PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE:
 335    case PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE:
 336    case PIPE_CAP_TGSI_BALLOT:
 337    case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
 338    case PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX:
 339    case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
 340    case PIPE_CAP_POST_DEPTH_COVERAGE:
 341    case PIPE_CAP_BINDLESS_TEXTURE:
 342    case PIPE_CAP_NIR_SAMPLERS_AS_DEREF:
 343    case PIPE_CAP_QUERY_SO_OVERFLOW:
 344    case PIPE_CAP_MEMOBJ:
 345       return 0;
 346
 347    case PIPE_CAP_VENDOR_ID:
 348       return 0xFFFFFFFF;
 349    case PIPE_CAP_DEVICE_ID:
 350       return 0xFFFFFFFF;
 351    case PIPE_CAP_ACCELERATED:
 352       return 0;
 353    case PIPE_CAP_VIDEO_MEMORY: {
 354       /* XXX: Do we want to return the full amount of system memory ? */
 355       uint64_t system_memory;
 356
 357       if (!os_get_total_physical_memory(&system_memory))
 358          return 0;
 359
 360       return (int)(system_memory >> 20);
 361    }
 362    }
 363
 364    /* should only get here on unhandled cases */
 365    debug_printf("Unexpected PIPE_CAP %d query\n", param);
 366    return 0;
 367 }
 368
 369 static int
 370 swr_get_shader_param(struct pipe_screen *screen,
 371                      enum pipe_shader_type shader,
 372                      enum pipe_shader_cap param)
 373 {
 374    if (shader == PIPE_SHADER_VERTEX ||
 375        shader == PIPE_SHADER_FRAGMENT ||
 376        shader == PIPE_SHADER_GEOMETRY)
 377       return gallivm_get_shader_param(param);
 378
 379    // Todo: tesselation, compute
 380    return 0;
 381 }
 382
 383
 384 static float
 385 swr_get_paramf(struct pipe_screen *screen, enum pipe_capf param)
 386 {
 387    switch (param) {
 388    case PIPE_CAPF_MAX_LINE_WIDTH:
 389    case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 390    case PIPE_CAPF_MAX_POINT_WIDTH:
 391       return 255.0; /* arbitrary */
 392    case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 393       return 0.0;
 394    case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 395       return 0.0;
 396    case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 397       return 16.0; /* arbitrary */
 398    case PIPE_CAPF_GUARD_BAND_LEFT:
 399    case PIPE_CAPF_GUARD_BAND_TOP:
 400    case PIPE_CAPF_GUARD_BAND_RIGHT:
 401    case PIPE_CAPF_GUARD_BAND_BOTTOM:
 402       return 0.0;
 403    }
 404    /* should only get here on unhandled cases */
 405    debug_printf("Unexpected PIPE_CAPF %d query\n", param);
 406    return 0.0;
 407 }
 408
 409 SWR_FORMAT
 410 mesa_to_swr_format(enum pipe_format format)
 411 {
 412    static const std::map<pipe_format,SWR_FORMAT> mesa2swr = {
 413       /* depth / stencil */
 414       {PIPE_FORMAT_Z16_UNORM,              R16_UNORM}, // z
 415       {PIPE_FORMAT_Z32_FLOAT,              R32_FLOAT}, // z
 416       {PIPE_FORMAT_Z24_UNORM_S8_UINT,      R24_UNORM_X8_TYPELESS}, // z
 417       {PIPE_FORMAT_Z24X8_UNORM,            R24_UNORM_X8_TYPELESS}, // z
 418       {PIPE_FORMAT_Z32_FLOAT_S8X24_UINT,   R32_FLOAT_X8X24_TYPELESS}, // z
 419
 420       /* alpha */
 421       {PIPE_FORMAT_A8_UNORM,               A8_UNORM},
 422       {PIPE_FORMAT_A16_UNORM,              A16_UNORM},
 423       {PIPE_FORMAT_A16_FLOAT,              A16_FLOAT},
 424       {PIPE_FORMAT_A32_FLOAT,              A32_FLOAT},
 425
 426       /* odd sizes, bgr */
 427       {PIPE_FORMAT_B5G6R5_UNORM,           B5G6R5_UNORM},
 428       {PIPE_FORMAT_B5G6R5_SRGB,            B5G6R5_UNORM_SRGB},
 429       {PIPE_FORMAT_B5G5R5A1_UNORM,         B5G5R5A1_UNORM},
 430       {PIPE_FORMAT_B5G5R5X1_UNORM,         B5G5R5X1_UNORM},
 431       {PIPE_FORMAT_B4G4R4A4_UNORM,         B4G4R4A4_UNORM},
 432       {PIPE_FORMAT_B8G8R8A8_UNORM,         B8G8R8A8_UNORM},
 433       {PIPE_FORMAT_B8G8R8A8_SRGB,          B8G8R8A8_UNORM_SRGB},
 434       {PIPE_FORMAT_B8G8R8X8_UNORM,         B8G8R8X8_UNORM},
 435       {PIPE_FORMAT_B8G8R8X8_SRGB,          B8G8R8X8_UNORM_SRGB},
 436
 437       /* rgb10a2 */
 438       {PIPE_FORMAT_R10G10B10A2_UNORM,      R10G10B10A2_UNORM},
 439       {PIPE_FORMAT_R10G10B10A2_SNORM,      R10G10B10A2_SNORM},
 440       {PIPE_FORMAT_R10G10B10A2_USCALED,    R10G10B10A2_USCALED},
 441       {PIPE_FORMAT_R10G10B10A2_SSCALED,    R10G10B10A2_SSCALED},
 442       {PIPE_FORMAT_R10G10B10A2_UINT,       R10G10B10A2_UINT},
 443
 444       /* rgb10x2 */
 445       {PIPE_FORMAT_R10G10B10X2_USCALED,    R10G10B10X2_USCALED},
 446
 447       /* bgr10a2 */
 448       {PIPE_FORMAT_B10G10R10A2_UNORM,      B10G10R10A2_UNORM},
 449       {PIPE_FORMAT_B10G10R10A2_SNORM,      B10G10R10A2_SNORM},
 450       {PIPE_FORMAT_B10G10R10A2_USCALED,    B10G10R10A2_USCALED},
 451       {PIPE_FORMAT_B10G10R10A2_SSCALED,    B10G10R10A2_SSCALED},
 452       {PIPE_FORMAT_B10G10R10A2_UINT,       B10G10R10A2_UINT},
 453
 454       /* bgr10x2 */
 455       {PIPE_FORMAT_B10G10R10X2_UNORM,      B10G10R10X2_UNORM},
 456
 457       /* r11g11b10 */
 458       {PIPE_FORMAT_R11G11B10_FLOAT,        R11G11B10_FLOAT},
 459
 460       /* 32 bits per component */
 461       {PIPE_FORMAT_R32_FLOAT,              R32_FLOAT},
 462       {PIPE_FORMAT_R32G32_FLOAT,           R32G32_FLOAT},
 463       {PIPE_FORMAT_R32G32B32_FLOAT,        R32G32B32_FLOAT},
 464       {PIPE_FORMAT_R32G32B32A32_FLOAT,     R32G32B32A32_FLOAT},
 465       {PIPE_FORMAT_R32G32B32X32_FLOAT,     R32G32B32X32_FLOAT},
 466
 467       {PIPE_FORMAT_R32_USCALED,            R32_USCALED},
 468       {PIPE_FORMAT_R32G32_USCALED,         R32G32_USCALED},
 469       {PIPE_FORMAT_R32G32B32_USCALED,      R32G32B32_USCALED},
 470       {PIPE_FORMAT_R32G32B32A32_USCALED,   R32G32B32A32_USCALED},
 471
 472       {PIPE_FORMAT_R32_SSCALED,            R32_SSCALED},
 473       {PIPE_FORMAT_R32G32_SSCALED,         R32G32_SSCALED},
 474       {PIPE_FORMAT_R32G32B32_SSCALED,      R32G32B32_SSCALED},
 475       {PIPE_FORMAT_R32G32B32A32_SSCALED,   R32G32B32A32_SSCALED},
 476
 477       {PIPE_FORMAT_R32_UINT,               R32_UINT},
 478       {PIPE_FORMAT_R32G32_UINT,            R32G32_UINT},
 479       {PIPE_FORMAT_R32G32B32_UINT,         R32G32B32_UINT},
 480       {PIPE_FORMAT_R32G32B32A32_UINT,      R32G32B32A32_UINT},
 481
 482       {PIPE_FORMAT_R32_SINT,               R32_SINT},
 483       {PIPE_FORMAT_R32G32_SINT,            R32G32_SINT},
 484       {PIPE_FORMAT_R32G32B32_SINT,         R32G32B32_SINT},
 485       {PIPE_FORMAT_R32G32B32A32_SINT,      R32G32B32A32_SINT},
 486
 487       /* 16 bits per component */
 488       {PIPE_FORMAT_R16_UNORM,              R16_UNORM},
 489       {PIPE_FORMAT_R16G16_UNORM,           R16G16_UNORM},
 490       {PIPE_FORMAT_R16G16B16_UNORM,        R16G16B16_UNORM},
 491       {PIPE_FORMAT_R16G16B16A16_UNORM,     R16G16B16A16_UNORM},
 492       {PIPE_FORMAT_R16G16B16X16_UNORM,     R16G16B16X16_UNORM},
 493
 494       {PIPE_FORMAT_R16_USCALED,            R16_USCALED},
 495       {PIPE_FORMAT_R16G16_USCALED,         R16G16_USCALED},
 496       {PIPE_FORMAT_R16G16B16_USCALED,      R16G16B16_USCALED},
 497       {PIPE_FORMAT_R16G16B16A16_USCALED,   R16G16B16A16_USCALED},
 498
 499       {PIPE_FORMAT_R16_SNORM,              R16_SNORM},
 500       {PIPE_FORMAT_R16G16_SNORM,           R16G16_SNORM},
 501       {PIPE_FORMAT_R16G16B16_SNORM,        R16G16B16_SNORM},
 502       {PIPE_FORMAT_R16G16B16A16_SNORM,     R16G16B16A16_SNORM},
 503
 504       {PIPE_FORMAT_R16_SSCALED,            R16_SSCALED},
 505       {PIPE_FORMAT_R16G16_SSCALED,         R16G16_SSCALED},
 506       {PIPE_FORMAT_R16G16B16_SSCALED,      R16G16B16_SSCALED},
 507       {PIPE_FORMAT_R16G16B16A16_SSCALED,   R16G16B16A16_SSCALED},
 508
 509       {PIPE_FORMAT_R16_UINT,               R16_UINT},
 510       {PIPE_FORMAT_R16G16_UINT,            R16G16_UINT},
 511       {PIPE_FORMAT_R16G16B16_UINT,         R16G16B16_UINT},
 512       {PIPE_FORMAT_R16G16B16A16_UINT,      R16G16B16A16_UINT},
 513
 514       {PIPE_FORMAT_R16_SINT,               R16_SINT},
 515       {PIPE_FORMAT_R16G16_SINT,            R16G16_SINT},
 516       {PIPE_FORMAT_R16G16B16_SINT,         R16G16B16_SINT},
 517       {PIPE_FORMAT_R16G16B16A16_SINT,      R16G16B16A16_SINT},
 518
 519       {PIPE_FORMAT_R16_FLOAT,              R16_FLOAT},
 520       {PIPE_FORMAT_R16G16_FLOAT,           R16G16_FLOAT},
 521       {PIPE_FORMAT_R16G16B16_FLOAT,        R16G16B16_FLOAT},
 522       {PIPE_FORMAT_R16G16B16A16_FLOAT,     R16G16B16A16_FLOAT},
 523       {PIPE_FORMAT_R16G16B16X16_FLOAT,     R16G16B16X16_FLOAT},
 524
 525       /* 8 bits per component */
 526       {PIPE_FORMAT_R8_UNORM,               R8_UNORM},
 527       {PIPE_FORMAT_R8G8_UNORM,             R8G8_UNORM},
 528       {PIPE_FORMAT_R8G8B8_UNORM,           R8G8B8_UNORM},
 529       {PIPE_FORMAT_R8G8B8_SRGB,            R8G8B8_UNORM_SRGB},
 530       {PIPE_FORMAT_R8G8B8A8_UNORM,         R8G8B8A8_UNORM},
 531       {PIPE_FORMAT_R8G8B8A8_SRGB,          R8G8B8A8_UNORM_SRGB},
 532       {PIPE_FORMAT_R8G8B8X8_UNORM,         R8G8B8X8_UNORM},
 533       {PIPE_FORMAT_R8G8B8X8_SRGB,          R8G8B8X8_UNORM_SRGB},
 534
 535       {PIPE_FORMAT_R8_USCALED,             R8_USCALED},
 536       {PIPE_FORMAT_R8G8_USCALED,           R8G8_USCALED},
 537       {PIPE_FORMAT_R8G8B8_USCALED,         R8G8B8_USCALED},
 538       {PIPE_FORMAT_R8G8B8A8_USCALED,       R8G8B8A8_USCALED},
 539
 540       {PIPE_FORMAT_R8_SNORM,               R8_SNORM},
 541       {PIPE_FORMAT_R8G8_SNORM,             R8G8_SNORM},
 542       {PIPE_FORMAT_R8G8B8_SNORM,           R8G8B8_SNORM},
 543       {PIPE_FORMAT_R8G8B8A8_SNORM,         R8G8B8A8_SNORM},
 544
 545       {PIPE_FORMAT_R8_SSCALED,             R8_SSCALED},
 546       {PIPE_FORMAT_R8G8_SSCALED,           R8G8_SSCALED},
 547       {PIPE_FORMAT_R8G8B8_SSCALED,         R8G8B8_SSCALED},
 548       {PIPE_FORMAT_R8G8B8A8_SSCALED,       R8G8B8A8_SSCALED},
 549
 550       {PIPE_FORMAT_R8_UINT,                R8_UINT},
 551       {PIPE_FORMAT_R8G8_UINT,              R8G8_UINT},
 552       {PIPE_FORMAT_R8G8B8_UINT,            R8G8B8_UINT},
 553       {PIPE_FORMAT_R8G8B8A8_UINT,          R8G8B8A8_UINT},
 554
 555       {PIPE_FORMAT_R8_SINT,                R8_SINT},
 556       {PIPE_FORMAT_R8G8_SINT,              R8G8_SINT},
 557       {PIPE_FORMAT_R8G8B8_SINT,            R8G8B8_SINT},
 558       {PIPE_FORMAT_R8G8B8A8_SINT,          R8G8B8A8_SINT},
 559
 560       /* These formats are valid for vertex data, but should not be used
 561        * for render targets.
 562        */
 563
 564       {PIPE_FORMAT_R32_FIXED,              R32_SFIXED},
 565       {PIPE_FORMAT_R32G32_FIXED,           R32G32_SFIXED},
 566       {PIPE_FORMAT_R32G32B32_FIXED,        R32G32B32_SFIXED},
 567       {PIPE_FORMAT_R32G32B32A32_FIXED,     R32G32B32A32_SFIXED},
 568
 569       {PIPE_FORMAT_R64_FLOAT,              R64_FLOAT},
 570       {PIPE_FORMAT_R64G64_FLOAT,           R64G64_FLOAT},
 571       {PIPE_FORMAT_R64G64B64_FLOAT,        R64G64B64_FLOAT},
 572       {PIPE_FORMAT_R64G64B64A64_FLOAT,     R64G64B64A64_FLOAT},
 573
 574       /* These formats have entries in SWR but don't have Load/StoreTile
 575        * implementations. That means these aren't renderable, and thus having
 576        * a mapping entry here is detrimental.
 577        */
 578       /*
 579
 580       {PIPE_FORMAT_L8_UNORM,               L8_UNORM},
 581       {PIPE_FORMAT_I8_UNORM,               I8_UNORM},
 582       {PIPE_FORMAT_L8A8_UNORM,             L8A8_UNORM},
 583       {PIPE_FORMAT_L16_UNORM,              L16_UNORM},
 584       {PIPE_FORMAT_UYVY,                   YCRCB_SWAPUVY},
 585
 586       {PIPE_FORMAT_L8_SRGB,                L8_UNORM_SRGB},
 587       {PIPE_FORMAT_L8A8_SRGB,              L8A8_UNORM_SRGB},
 588
 589       {PIPE_FORMAT_DXT1_RGBA,              BC1_UNORM},
 590       {PIPE_FORMAT_DXT3_RGBA,              BC2_UNORM},
 591       {PIPE_FORMAT_DXT5_RGBA,              BC3_UNORM},
 592
 593       {PIPE_FORMAT_DXT1_SRGBA,             BC1_UNORM_SRGB},
 594       {PIPE_FORMAT_DXT3_SRGBA,             BC2_UNORM_SRGB},
 595       {PIPE_FORMAT_DXT5_SRGBA,             BC3_UNORM_SRGB},
 596
 597       {PIPE_FORMAT_RGTC1_UNORM,            BC4_UNORM},
 598       {PIPE_FORMAT_RGTC1_SNORM,            BC4_SNORM},
 599       {PIPE_FORMAT_RGTC2_UNORM,            BC5_UNORM},
 600       {PIPE_FORMAT_RGTC2_SNORM,            BC5_SNORM},
 601
 602       {PIPE_FORMAT_L16A16_UNORM,           L16A16_UNORM},
 603       {PIPE_FORMAT_I16_UNORM,              I16_UNORM},
 604       {PIPE_FORMAT_L16_FLOAT,              L16_FLOAT},
 605       {PIPE_FORMAT_L16A16_FLOAT,           L16A16_FLOAT},
 606       {PIPE_FORMAT_I16_FLOAT,              I16_FLOAT},
 607       {PIPE_FORMAT_L32_FLOAT,              L32_FLOAT},
 608       {PIPE_FORMAT_L32A32_FLOAT,           L32A32_FLOAT},
 609       {PIPE_FORMAT_I32_FLOAT,              I32_FLOAT},
 610
 611       {PIPE_FORMAT_I8_UINT,                I8_UINT},
 612       {PIPE_FORMAT_L8_UINT,                L8_UINT},
 613       {PIPE_FORMAT_L8A8_UINT,              L8A8_UINT},
 614
 615       {PIPE_FORMAT_I8_SINT,                I8_SINT},
 616       {PIPE_FORMAT_L8_SINT,                L8_SINT},
 617       {PIPE_FORMAT_L8A8_SINT,              L8A8_SINT},
 618
 619       */
 620    };
 621
 622    auto it = mesa2swr.find(format);
 623    if (it == mesa2swr.end())
 624       return (SWR_FORMAT)-1;
 625    else
 626       return it->second;
 627 }
 628
 629 static boolean
 630 swr_displaytarget_layout(struct swr_screen *screen, struct swr_resource *res)
 631 {
 632    struct sw_winsys *winsys = screen->winsys;
 633    struct sw_displaytarget *dt;
 634
 635    const unsigned width = align(res->swr.width, res->swr.halign);
 636    const unsigned height = align(res->swr.height, res->swr.valign);
 637
 638    UINT stride;
 639    dt = winsys->displaytarget_create(winsys,
 640                                      res->base.bind,
 641                                      res->base.format,
 642                                      width, height,
 643                                      64, NULL,
 644                                      &stride);
 645
 646    if (dt == NULL)
 647       return FALSE;
 648
 649    void *map = winsys->displaytarget_map(winsys, dt, 0);
 650
 651    res->display_target = dt;
 652    res->swr.pBaseAddress = (uint8_t*) map;
 653
 654    /* Clear the display target surface */
 655    if (map)
 656       memset(map, 0, height * stride);
 657
 658    winsys->displaytarget_unmap(winsys, dt);
 659
 660    return TRUE;
 661 }
 662
 663 static bool
 664 swr_texture_layout(struct swr_screen *screen,
 665                    struct swr_resource *res,
 666                    boolean allocate)
 667 {
 668    struct pipe_resource *pt = &res->base;
 669
 670    pipe_format fmt = pt->format;
 671    const struct util_format_description *desc = util_format_description(fmt);
 672
 673    res->has_depth = util_format_has_depth(desc);
 674    res->has_stencil = util_format_has_stencil(desc);
 675
 676    if (res->has_stencil && !res->has_depth)
 677       fmt = PIPE_FORMAT_R8_UINT;
 678
 679    /* We always use the SWR layout. For 2D and 3D textures this looks like:
 680     *
 681     * |<------- pitch ------->|
 682     * +=======================+-------
 683     * |Array 0                |   ^
 684     * |                       |   |
 685     * |        Level 0        |   |
 686     * |                       |   |
 687     * |                       | qpitch
 688     * +-----------+-----------+   |
 689     * |           | L2L2L2L2  |   |
 690     * |  Level 1  | L3L3      |   |
 691     * |           | L4        |   v
 692     * +===========+===========+-------
 693     * |Array 1                |
 694     * |                       |
 695     * |        Level 0        |
 696     * |                       |
 697     * |                       |
 698     * +-----------+-----------+
 699     * |           | L2L2L2L2  |
 700     * |  Level 1  | L3L3      |
 701     * |           | L4        |
 702     * +===========+===========+
 703     *
 704     * The overall width in bytes is known as the pitch, while the overall
 705     * height in rows is the qpitch. Array slices are laid out logically below
 706     * one another, qpitch rows apart. For 3D surfaces, the "level" values are
 707     * just invalid for the higher array numbers (since depth is also
 708     * minified). 1D and 1D array surfaces are stored effectively the same way,
 709     * except that pitch never plays into it. All the levels are logically
 710     * adjacent to each other on the X axis. The qpitch becomes the number of
 711     * elements between array slices, while the pitch is unused.
 712     *
 713     * Each level's sizes are subject to the valign and halign settings of the
 714     * surface. For compressed formats that swr is unaware of, we will use an
 715     * appropriately-sized uncompressed format, and scale the widths/heights.
 716     *
 717     * This surface is stored inside res->swr. For depth/stencil textures,
 718     * res->secondary will have an identically-laid-out but R8_UINT-formatted
 719     * stencil tree. In the Z32F_S8 case, the primary surface still has 64-bpp
 720     * texels, to simplify map/unmap logic which copies the stencil values
 721     * in/out.
 722     */
 723
 724    res->swr.width = pt->width0;
 725    res->swr.height = pt->height0;
 726    res->swr.type = swr_convert_target_type(pt->target);
 727    res->swr.tileMode = SWR_TILE_NONE;
 728    res->swr.format = mesa_to_swr_format(fmt);
 729    res->swr.numSamples = std::max(1u, pt->nr_samples);
 730
 731    if (pt->bind & (PIPE_BIND_RENDER_TARGET | PIPE_BIND_DEPTH_STENCIL)) {
 732       res->swr.halign = KNOB_MACROTILE_X_DIM;
 733       res->swr.valign = KNOB_MACROTILE_Y_DIM;
 734
 735       /* If SWR_MSAA_FORCE_ENABLE is set, turn on MSAA and override requested
 736        * surface sample count. */
 737       if (screen->msaa_force_enable) {
 738          res->swr.numSamples = screen->msaa_max_count;
 739          fprintf(stderr,"swr_texture_layout: forcing sample count: %d\n",
 740                  res->swr.numSamples);
 741       }
 742    } else {
 743       res->swr.halign = 1;
 744       res->swr.valign = 1;
 745    }
 746
 747    unsigned halign = res->swr.halign * util_format_get_blockwidth(fmt);
 748    unsigned width = align(pt->width0, halign);
 749    if (pt->target == PIPE_TEXTURE_1D || pt->target == PIPE_TEXTURE_1D_ARRAY) {
 750       for (int level = 1; level <= pt->last_level; level++)
 751          width += align(u_minify(pt->width0, level), halign);
 752       res->swr.pitch = util_format_get_blocksize(fmt);
 753       res->swr.qpitch = util_format_get_nblocksx(fmt, width);
 754    } else {
 755       // The pitch is the overall width of the texture in bytes. Most of the
 756       // time this is the pitch of level 0 since all the other levels fit
 757       // underneath it. However in some degenerate situations, the width of
 758       // level1 + level2 may be larger. In that case, we use those
 759       // widths. This can happen if, e.g. halign is 32, and the width of level
 760       // 0 is 32 or less. In that case, the aligned levels 1 and 2 will also
 761       // be 32 each, adding up to 64.
 762       unsigned valign = res->swr.valign * util_format_get_blockheight(fmt);
 763       if (pt->last_level > 1) {
 764          width = std::max<uint32_t>(
 765                width,
 766                align(u_minify(pt->width0, 1), halign) +
 767                align(u_minify(pt->width0, 2), halign));
 768       }
 769       res->swr.pitch = util_format_get_stride(fmt, width);
 770
 771       // The qpitch is controlled by either the height of the second LOD, or
 772       // the combination of all the later LODs.
 773       unsigned height = align(pt->height0, valign);
 774       if (pt->last_level == 1) {
 775          height += align(u_minify(pt->height0, 1), valign);
 776       } else if (pt->last_level > 1) {
 777          unsigned level1 = align(u_minify(pt->height0, 1), valign);
 778          unsigned level2 = 0;
 779          for (int level = 2; level <= pt->last_level; level++) {
 780             level2 += align(u_minify(pt->height0, level), valign);
 781          }
 782          height += std::max(level1, level2);
 783       }
 784       res->swr.qpitch = util_format_get_nblocksy(fmt, height);
 785    }
 786
 787    if (pt->target == PIPE_TEXTURE_3D)
 788       res->swr.depth = pt->depth0;
 789    else
 790       res->swr.depth = pt->array_size;
 791
 792    // Fix up swr format if necessary so that LOD offset computation works
 793    if (res->swr.format == (SWR_FORMAT)-1) {
 794       switch (util_format_get_blocksize(fmt)) {
 795       default:
 796          unreachable("Unexpected format block size");
 797       case 1: res->swr.format = R8_UINT; break;
 798       case 2: res->swr.format = R16_UINT; break;
 799       case 4: res->swr.format = R32_UINT; break;
 800       case 8:
 801          if (util_format_is_compressed(fmt))
 802             res->swr.format = BC4_UNORM;
 803          else
 804             res->swr.format = R32G32_UINT;
 805          break;
 806       case 16:
 807          if (util_format_is_compressed(fmt))
 808             res->swr.format = BC5_UNORM;
 809          else
 810             res->swr.format = R32G32B32A32_UINT;
 811          break;
 812       }
 813    }
 814
 815    for (int level = 0; level <= pt->last_level; level++) {
 816       res->mip_offsets[level] =
 817          ComputeSurfaceOffset<false>(0, 0, 0, 0, 0, level, &res->swr);
 818    }
 819
 820    size_t total_size = res->swr.depth * res->swr.qpitch * res->swr.pitch *
 821                        res->swr.numSamples;
 822    if (total_size > SWR_MAX_TEXTURE_SIZE)
 823       return false;
 824
 825    if (allocate) {
 826       res->swr.pBaseAddress = (uint8_t *)AlignedMalloc(total_size, 64);
 827
 828       if (res->has_depth && res->has_stencil) {
 829          res->secondary = res->swr;
 830          res->secondary.format = R8_UINT;
 831          res->secondary.pitch = res->swr.pitch / util_format_get_blocksize(fmt);
 832
 833          for (int level = 0; level <= pt->last_level; level++) {
 834             res->secondary_mip_offsets[level] =
 835                ComputeSurfaceOffset<false>(0, 0, 0, 0, 0, level, &res->secondary);
 836          }
 837
 838          total_size = res->secondary.depth * res->secondary.qpitch *
 839                       res->secondary.pitch * res->secondary.numSamples;
 840
 841          res->secondary.pBaseAddress = (uint8_t *) AlignedMalloc(total_size,
 842                                                                  64);
 843       }
 844    }
 845
 846    return true;
 847 }
 848
 849 static boolean
 850 swr_can_create_resource(struct pipe_screen *screen,
 851                         const struct pipe_resource *templat)
 852 {
 853    struct swr_resource res;
 854    memset(&res, 0, sizeof(res));
 855    res.base = *templat;
 856    return swr_texture_layout(swr_screen(screen), &res, false);
 857 }
 858
 859 /* Helper function that conditionally creates a single-sample resolve resource
 860  * and attaches it to main multisample resource. */
 861 static boolean
 862 swr_create_resolve_resource(struct pipe_screen *_screen,
 863                             struct swr_resource *msaa_res)
 864 {
 865    struct swr_screen *screen = swr_screen(_screen);
 866
 867    /* If resource is multisample, create a single-sample resolve resource */
 868    if (msaa_res->base.nr_samples > 1 || (screen->msaa_force_enable &&
 869             !(msaa_res->base.flags & SWR_RESOURCE_FLAG_ALT_SURFACE))) {
 870
 871       /* Create a single-sample copy of the resource.  Copy the original
 872        * resource parameters and set flag to prevent recursion when re-calling
 873        * resource_create */
 874       struct pipe_resource alt_template = msaa_res->base;
 875       alt_template.nr_samples = 0;
 876       alt_template.flags |= SWR_RESOURCE_FLAG_ALT_SURFACE;
 877
 878       /* Note: Display_target is a special single-sample resource, only the
 879        * display_target has been created already. */
 880       if (msaa_res->base.bind & (PIPE_BIND_DISPLAY_TARGET | PIPE_BIND_SCANOUT
 881                | PIPE_BIND_SHARED)) {
 882          /* Allocate the multisample buffers. */
 883          if (!swr_texture_layout(screen, msaa_res, true))
 884             return false;
 885
 886          /* Alt resource will only be bound as PIPE_BIND_RENDER_TARGET
 887           * remove the DISPLAY_TARGET, SCANOUT, and SHARED bindings */
 888          alt_template.bind = PIPE_BIND_RENDER_TARGET;
 889       }
 890
 891       /* Allocate single-sample resolve surface */
 892       struct pipe_resource *alt;
 893       alt = _screen->resource_create(_screen, &alt_template);
 894       if (!alt)
 895          return false;
 896
 897       /* Attach it to the multisample resource */
 898       msaa_res->resolve_target = alt;
 899
 900       /* Hang resolve surface state off the multisample surface state to so
 901        * StoreTiles knows where to resolve the surface. */
 902       msaa_res->swr.pAuxBaseAddress =  (uint8_t *)&swr_resource(alt)->swr;
 903    }
 904
 905    return true; /* success */
 906 }
 907
 908 static struct pipe_resource *
 909 swr_resource_create(struct pipe_screen *_screen,
 910                     const struct pipe_resource *templat)
 911 {
 912    struct swr_screen *screen = swr_screen(_screen);
 913    struct swr_resource *res = CALLOC_STRUCT(swr_resource);
 914    if (!res)
 915       return NULL;
 916
 917    res->base = *templat;
 918    pipe_reference_init(&res->base.reference, 1);
 919    res->base.screen = &screen->base;
 920
 921    if (swr_resource_is_texture(&res->base)) {
 922       if (res->base.bind & (PIPE_BIND_DISPLAY_TARGET | PIPE_BIND_SCANOUT
 923                             | PIPE_BIND_SHARED)) {
 924          /* displayable surface
 925           * first call swr_texture_layout without allocating to finish
 926           * filling out the SWR_SURFACE_STATE in res */
 927          swr_texture_layout(screen, res, false);
 928          if (!swr_displaytarget_layout(screen, res))
 929             goto fail;
 930       } else {
 931          /* texture map */
 932          if (!swr_texture_layout(screen, res, true))
 933             goto fail;
 934       }
 935
 936       /* If resource was multisample, create resolve resource and attach
 937        * it to multisample resource. */
 938       if (!swr_create_resolve_resource(_screen, res))
 939             goto fail;
 940
 941    } else {
 942       /* other data (vertex buffer, const buffer, etc) */
 943       assert(util_format_get_blocksize(templat->format) == 1);
 944       assert(templat->height0 == 1);
 945       assert(templat->depth0 == 1);
 946       assert(templat->last_level == 0);
 947
 948       /* Easiest to just call swr_texture_layout, as it sets up
 949        * SWR_SURFACE_STATE in res */
 950       if (!swr_texture_layout(screen, res, true))
 951          goto fail;
 952    }
 953
 954    return &res->base;
 955
 956 fail:
 957    FREE(res);
 958    return NULL;
 959 }
 960
 961 static void
 962 swr_resource_destroy(struct pipe_screen *p_screen, struct pipe_resource *pt)
 963 {
 964    struct swr_screen *screen = swr_screen(p_screen);
 965    struct swr_resource *spr = swr_resource(pt);
 966
 967    if (spr->display_target) {
 968       /* If resource is display target, winsys manages the buffer and will
 969        * free it on displaytarget_destroy. */
 970       swr_fence_finish(p_screen, NULL, screen->flush_fence, 0);
 971
 972       struct sw_winsys *winsys = screen->winsys;
 973       winsys->displaytarget_destroy(winsys, spr->display_target);
 974
 975       if (spr->swr.numSamples > 1) {
 976          /* Free an attached resolve resource */
 977          struct swr_resource *alt = swr_resource(spr->resolve_target);
 978          swr_fence_work_free(screen->flush_fence, alt->swr.pBaseAddress, true);
 979
 980          /* Free multisample buffer */
 981          swr_fence_work_free(screen->flush_fence, spr->swr.pBaseAddress, true);
 982       }
 983    } else {
 984       /* For regular resources, defer deletion */
 985       swr_resource_unused(pt);
 986
 987       if (spr->swr.numSamples > 1) {
 988          /* Free an attached resolve resource */
 989          struct swr_resource *alt = swr_resource(spr->resolve_target);
 990          swr_fence_work_free(screen->flush_fence, alt->swr.pBaseAddress, true);
 991       }
 992
 993       swr_fence_work_free(screen->flush_fence, spr->swr.pBaseAddress, true);
 994       swr_fence_work_free(screen->flush_fence,
 995                           spr->secondary.pBaseAddress, true);
 996
 997       /* If work queue grows too large, submit a fence to force queue to
 998        * drain.  This is mainly to decrease the amount of memory used by the
 999        * piglit streaming-texture-leak test */
1000       if (screen->pipe && swr_fence(screen->flush_fence)->work.count > 64)
1001          swr_fence_submit(swr_context(screen->pipe), screen->flush_fence);
1002    }
1003
1004    FREE(spr);
1005 }
1006
1007
1008 static void
1009 swr_flush_frontbuffer(struct pipe_screen *p_screen,
1010                       struct pipe_resource *resource,
1011                       unsigned level,
1012                       unsigned layer,
1013                       void *context_private,
1014                       struct pipe_box *sub_box)
1015 {
1016    struct swr_screen *screen = swr_screen(p_screen);
1017    struct sw_winsys *winsys = screen->winsys;
1018    struct swr_resource *spr = swr_resource(resource);
1019    struct pipe_context *pipe = screen->pipe;
1020    struct swr_context *ctx = swr_context(pipe);
1021
1022    if (pipe) {
1023       swr_fence_finish(p_screen, NULL, screen->flush_fence, 0);
1024       swr_resource_unused(resource);
1025       ctx->api.pfnSwrEndFrame(ctx->swrContext);
1026    }
1027
1028    /* Multisample resolved into resolve_target at flush with store_resource */
1029    if (pipe && spr->swr.numSamples > 1) {
1030       struct pipe_resource *resolve_target = spr->resolve_target;
1031
1032       /* Once resolved, copy into display target */
1033       SWR_SURFACE_STATE *resolve = &swr_resource(resolve_target)->swr;
1034
1035       void *map = winsys->displaytarget_map(winsys, spr->display_target,
1036                                             PIPE_TRANSFER_WRITE);
1037       memcpy(map, resolve->pBaseAddress, resolve->pitch * resolve->height);
1038       winsys->displaytarget_unmap(winsys, spr->display_target);
1039    }
1040
1041    debug_assert(spr->display_target);
1042    if (spr->display_target)
1043       winsys->displaytarget_display(
1044          winsys, spr->display_target, context_private, sub_box);
1045 }
1046
1047
1048 static void
1049 swr_destroy_screen(struct pipe_screen *p_screen)
1050 {
1051    struct swr_screen *screen = swr_screen(p_screen);
1052    struct sw_winsys *winsys = screen->winsys;
1053
1054    fprintf(stderr, "SWR destroy screen!\n");
1055
1056    swr_fence_finish(p_screen, NULL, screen->flush_fence, 0);
1057    swr_fence_reference(p_screen, &screen->flush_fence, NULL);
1058
1059    JitDestroyContext(screen->hJitMgr);
1060
1061    if (winsys->destroy)
1062       winsys->destroy(winsys);
1063
1064    FREE(screen);
1065 }
1066
1067
1068 static void
1069 swr_validate_env_options(struct swr_screen *screen)
1070 {
1071    /* The client_copy_limit sets a maximum on the amount of user-buffer memory
1072     * copied to scratch space on a draw.  Past this, the draw will access
1073     * user-buffer directly and then block.  This is faster than queuing many
1074     * large client draws. */
1075    screen->client_copy_limit = SWR_CLIENT_COPY_LIMIT;
1076    int client_copy_limit =
1077       debug_get_num_option("SWR_CLIENT_COPY_LIMIT", SWR_CLIENT_COPY_LIMIT);
1078    if (client_copy_limit > 0)
1079       screen->client_copy_limit = client_copy_limit;
1080
1081    /* XXX msaa under development, disable by default for now */
1082    screen->msaa_max_count = 1; /* was SWR_MAX_NUM_MULTISAMPLES; */
1083
1084    /* validate env override values, within range and power of 2 */
1085    int msaa_max_count = debug_get_num_option("SWR_MSAA_MAX_COUNT", 1);
1086    if (msaa_max_count != 1) {
1087       if ((msaa_max_count < 1) || (msaa_max_count > SWR_MAX_NUM_MULTISAMPLES)
1088             || !util_is_power_of_two(msaa_max_count)) {
1089          fprintf(stderr, "SWR_MSAA_MAX_COUNT invalid: %d\n", msaa_max_count);
1090          fprintf(stderr, "must be power of 2 between 1 and %d" \
1091                          " (or 1 to disable msaa)\n",
1092                SWR_MAX_NUM_MULTISAMPLES);
1093          msaa_max_count = 1;
1094       }
1095
1096       fprintf(stderr, "SWR_MSAA_MAX_COUNT: %d\n", msaa_max_count);
1097       if (msaa_max_count == 1)
1098          fprintf(stderr, "(msaa disabled)\n");
1099
1100       screen->msaa_max_count = msaa_max_count;
1101    }
1102
1103    screen->msaa_force_enable = debug_get_bool_option(
1104          "SWR_MSAA_FORCE_ENABLE", false);
1105    if (screen->msaa_force_enable)
1106       fprintf(stderr, "SWR_MSAA_FORCE_ENABLE: true\n");
1107 }
1108
1109
1110 PUBLIC
1111 struct pipe_screen *
1112 swr_create_screen_internal(struct sw_winsys *winsys)
1113 {
1114    struct swr_screen *screen = CALLOC_STRUCT(swr_screen);
1115
1116    if (!screen)
1117       return NULL;
1118
1119    if (!lp_build_init()) {
1120       FREE(screen);
1121       return NULL;
1122    }
1123
1124    screen->winsys = winsys;
1125    screen->base.get_name = swr_get_name;
1126    screen->base.get_vendor = swr_get_vendor;
1127    screen->base.is_format_supported = swr_is_format_supported;
1128    screen->base.context_create = swr_create_context;
1129    screen->base.can_create_resource = swr_can_create_resource;
1130
1131    screen->base.destroy = swr_destroy_screen;
1132    screen->base.get_param = swr_get_param;
1133    screen->base.get_shader_param = swr_get_shader_param;
1134    screen->base.get_paramf = swr_get_paramf;
1135
1136    screen->base.resource_create = swr_resource_create;
1137    screen->base.resource_destroy = swr_resource_destroy;
1138
1139    screen->base.flush_frontbuffer = swr_flush_frontbuffer;
1140
1141    // Pass in "" for architecture for run-time determination
1142    screen->hJitMgr = JitCreateContext(KNOB_SIMD_WIDTH, "", "swr");
1143
1144    swr_fence_init(&screen->base);
1145
1146    util_format_s3tc_init();
1147
1148    swr_validate_env_options(screen);
1149
1150    return &screen->base;
1151 }
1152