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      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 /* MSVC case instensitive compare */
     50 #if defined(PIPE_CC_MSVC)
     51    #define strcasecmp lstrcmpiA
     52 #endif
     53 
     54 /*
     55  * Max texture sizes
     56  * XXX Check max texture size values against core and sampler.
     57  */
     58 #define SWR_MAX_TEXTURE_SIZE (4 * 1024 * 1024 * 1024ULL) /* 4GB */
     59 #define SWR_MAX_TEXTURE_2D_LEVELS 14  /* 8K x 8K for now */
     60 #define SWR_MAX_TEXTURE_3D_LEVELS 12  /* 2K x 2K x 2K for now */
     61 #define SWR_MAX_TEXTURE_CUBE_LEVELS 14  /* 8K x 8K for now */
     62 #define SWR_MAX_TEXTURE_ARRAY_LAYERS 512 /* 8K x 512 / 8K x 8K x 512 */
     63 
     64 static const char *
     65 swr_get_name(struct pipe_screen *screen)
     66 {
     67    static char buf[100];
     68    util_snprintf(buf, sizeof(buf), "SWR (LLVM %u.%u, %u bits)",
     69                  HAVE_LLVM >> 8, HAVE_LLVM & 0xff,
     70                  lp_native_vector_width );
     71    return buf;
     72 }
     73 
     74 static const char *
     75 swr_get_vendor(struct pipe_screen *screen)
     76 {
     77    return "Intel Corporation";
     78 }
     79 
     80 static boolean
     81 swr_is_format_supported(struct pipe_screen *screen,
     82                         enum pipe_format format,
     83                         enum pipe_texture_target target,
     84                         unsigned sample_count,
     85                         unsigned bind)
     86 {
     87    struct sw_winsys *winsys = swr_screen(screen)->winsys;
     88    const struct util_format_description *format_desc;
     89 
     90    assert(target == PIPE_BUFFER || target == PIPE_TEXTURE_1D
     91           || target == PIPE_TEXTURE_1D_ARRAY
     92           || target == PIPE_TEXTURE_2D
     93           || target == PIPE_TEXTURE_2D_ARRAY
     94           || target == PIPE_TEXTURE_RECT
     95           || target == PIPE_TEXTURE_3D
     96           || target == PIPE_TEXTURE_CUBE
     97           || target == PIPE_TEXTURE_CUBE_ARRAY);
     98 
     99    format_desc = util_format_description(format);
    100    if (!format_desc)
    101       return FALSE;
    102 
    103    if (sample_count > 1)
    104       return FALSE;
    105 
    106    if (bind
    107        & (PIPE_BIND_DISPLAY_TARGET | PIPE_BIND_SCANOUT | PIPE_BIND_SHARED)) {
    108       if (!winsys->is_displaytarget_format_supported(winsys, bind, format))
    109          return FALSE;
    110    }
    111 
    112    if (bind & PIPE_BIND_RENDER_TARGET) {
    113       if (format_desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS)
    114          return FALSE;
    115 
    116       if (mesa_to_swr_format(format) == (SWR_FORMAT)-1)
    117          return FALSE;
    118 
    119       /*
    120        * Although possible, it is unnatural to render into compressed or YUV
    121        * surfaces. So disable these here to avoid going into weird paths
    122        * inside the state trackers.
    123        */
    124       if (format_desc->block.width != 1 || format_desc->block.height != 1)
    125          return FALSE;
    126    }
    127 
    128    if (bind & PIPE_BIND_DEPTH_STENCIL) {
    129       if (format_desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS)
    130          return FALSE;
    131 
    132       if (mesa_to_swr_format(format) == (SWR_FORMAT)-1)
    133          return FALSE;
    134    }
    135 
    136    if (format_desc->layout == UTIL_FORMAT_LAYOUT_BPTC ||
    137        format_desc->layout == UTIL_FORMAT_LAYOUT_ASTC) {
    138       return FALSE;
    139    }
    140 
    141    if (format_desc->layout == UTIL_FORMAT_LAYOUT_ETC &&
    142        format != PIPE_FORMAT_ETC1_RGB8) {
    143       return FALSE;
    144    }
    145 
    146    if (format_desc->layout == UTIL_FORMAT_LAYOUT_S3TC) {
    147       return util_format_s3tc_enabled;
    148    }
    149 
    150    return TRUE;
    151 }
    152 
    153 static int
    154 swr_get_param(struct pipe_screen *screen, enum pipe_cap param)
    155 {
    156    switch (param) {
    157       /* limits */
    158    case PIPE_CAP_MAX_RENDER_TARGETS:
    159       return PIPE_MAX_COLOR_BUFS;
    160    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
    161       return SWR_MAX_TEXTURE_2D_LEVELS;
    162    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
    163       return SWR_MAX_TEXTURE_3D_LEVELS;
    164    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
    165       return SWR_MAX_TEXTURE_CUBE_LEVELS;
    166    case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
    167       return MAX_SO_STREAMS;
    168    case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
    169    case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
    170       return MAX_ATTRIBUTES * 4;
    171    case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
    172    case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
    173       return 1024;
    174    case PIPE_CAP_MAX_VERTEX_STREAMS:
    175       return 1;
    176    case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
    177       return 2048;
    178    case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
    179       return SWR_MAX_TEXTURE_ARRAY_LAYERS;
    180    case PIPE_CAP_MIN_TEXEL_OFFSET:
    181       return -8;
    182    case PIPE_CAP_MAX_TEXEL_OFFSET:
    183       return 7;
    184    case PIPE_CAP_GLSL_FEATURE_LEVEL:
    185       return 330;
    186    case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
    187       return 16;
    188    case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
    189       return 64;
    190    case PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE:
    191       return 65536;
    192    case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
    193       return 0;
    194    case PIPE_CAP_MAX_VIEWPORTS:
    195       return 1;
    196    case PIPE_CAP_ENDIANNESS:
    197       return PIPE_ENDIAN_NATIVE;
    198    case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
    199    case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
    200       return 0;
    201 
    202       /* supported features */
    203    case PIPE_CAP_NPOT_TEXTURES:
    204    case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
    205    case PIPE_CAP_MIXED_COLOR_DEPTH_BITS:
    206    case PIPE_CAP_TWO_SIDED_STENCIL:
    207    case PIPE_CAP_SM3:
    208    case PIPE_CAP_POINT_SPRITE:
    209    case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
    210    case PIPE_CAP_OCCLUSION_QUERY:
    211    case PIPE_CAP_QUERY_TIME_ELAPSED:
    212    case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
    213    case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
    214    case PIPE_CAP_TEXTURE_SHADOW_MAP:
    215    case PIPE_CAP_TEXTURE_SWIZZLE:
    216    case PIPE_CAP_BLEND_EQUATION_SEPARATE:
    217    case PIPE_CAP_INDEP_BLEND_ENABLE:
    218    case PIPE_CAP_INDEP_BLEND_FUNC:
    219    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
    220    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
    221    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
    222    case PIPE_CAP_DEPTH_CLIP_DISABLE:
    223    case PIPE_CAP_PRIMITIVE_RESTART:
    224    case PIPE_CAP_TGSI_INSTANCEID:
    225    case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
    226    case PIPE_CAP_START_INSTANCE:
    227    case PIPE_CAP_SEAMLESS_CUBE_MAP:
    228    case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
    229    case PIPE_CAP_CONDITIONAL_RENDER:
    230    case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
    231    case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
    232    case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
    233    case PIPE_CAP_USER_VERTEX_BUFFERS:
    234    case PIPE_CAP_USER_INDEX_BUFFERS:
    235    case PIPE_CAP_USER_CONSTANT_BUFFERS:
    236    case PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS:
    237    case PIPE_CAP_QUERY_TIMESTAMP:
    238    case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
    239    case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
    240    case PIPE_CAP_FAKE_SW_MSAA:
    241    case PIPE_CAP_DRAW_INDIRECT:
    242    case PIPE_CAP_UMA:
    243    case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
    244    case PIPE_CAP_CLIP_HALFZ:
    245    case PIPE_CAP_POLYGON_OFFSET_CLAMP:
    246    case PIPE_CAP_DEPTH_BOUNDS_TEST:
    247    case PIPE_CAP_TEXTURE_FLOAT_LINEAR:
    248    case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
    249    case PIPE_CAP_CULL_DISTANCE:
    250    case PIPE_CAP_CUBE_MAP_ARRAY:
    251       return 1;
    252 
    253       /* unsupported features */
    254    case PIPE_CAP_ANISOTROPIC_FILTER:
    255    case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
    256    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
    257    case PIPE_CAP_SHADER_STENCIL_EXPORT:
    258    case PIPE_CAP_TEXTURE_BARRIER:
    259    case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
    260    case PIPE_CAP_VERTEX_COLOR_CLAMPED:
    261    case PIPE_CAP_COMPUTE:
    262    case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
    263    case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
    264    case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
    265    case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
    266    case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
    267    case PIPE_CAP_TEXTURE_MULTISAMPLE:
    268    case PIPE_CAP_TGSI_TEXCOORD:
    269    case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
    270    case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
    271    case PIPE_CAP_TEXTURE_GATHER_SM5:
    272    case PIPE_CAP_TEXTURE_QUERY_LOD:
    273    case PIPE_CAP_SAMPLE_SHADING:
    274    case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
    275    case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
    276    case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
    277    case PIPE_CAP_SAMPLER_VIEW_TARGET:
    278    case PIPE_CAP_VERTEXID_NOBASE:
    279    case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
    280    case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
    281    case PIPE_CAP_DEVICE_RESET_STATUS_QUERY:
    282    case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:
    283    case PIPE_CAP_TGSI_TXQS:
    284    case PIPE_CAP_FORCE_PERSAMPLE_INTERP:
    285    case PIPE_CAP_SHAREABLE_SHADERS:
    286    case PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS:
    287    case PIPE_CAP_CLEAR_TEXTURE:
    288    case PIPE_CAP_DRAW_PARAMETERS:
    289    case PIPE_CAP_TGSI_PACK_HALF_FLOAT:
    290    case PIPE_CAP_MULTI_DRAW_INDIRECT:
    291    case PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS:
    292    case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
    293    case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
    294    case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
    295    case PIPE_CAP_INVALIDATE_BUFFER:
    296    case PIPE_CAP_GENERATE_MIPMAP:
    297    case PIPE_CAP_STRING_MARKER:
    298    case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
    299    case PIPE_CAP_SURFACE_REINTERPRET_BLOCKS:
    300    case PIPE_CAP_QUERY_BUFFER_OBJECT:
    301    case PIPE_CAP_QUERY_MEMORY_INFO:
    302    case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
    303    case PIPE_CAP_PCI_GROUP:
    304    case PIPE_CAP_PCI_BUS:
    305    case PIPE_CAP_PCI_DEVICE:
    306    case PIPE_CAP_PCI_FUNCTION:
    307    case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
    308    case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
    309    case PIPE_CAP_TGSI_VOTE:
    310    case PIPE_CAP_MAX_WINDOW_RECTANGLES:
    311    case PIPE_CAP_POLYGON_OFFSET_UNITS_UNSCALED:
    312    case PIPE_CAP_VIEWPORT_SUBPIXEL_BITS:
    313    case PIPE_CAP_TGSI_ARRAY_COMPONENTS:
    314    case PIPE_CAP_TGSI_CAN_READ_OUTPUTS:
    315    case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
    316    case PIPE_CAP_NATIVE_FENCE_FD:
    317    case PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY:
    318    case PIPE_CAP_TGSI_FS_FBFETCH:
    319       return 0;
    320 
    321    case PIPE_CAP_VENDOR_ID:
    322       return 0xFFFFFFFF;
    323    case PIPE_CAP_DEVICE_ID:
    324       return 0xFFFFFFFF;
    325    case PIPE_CAP_ACCELERATED:
    326       return 0;
    327    case PIPE_CAP_VIDEO_MEMORY: {
    328       /* XXX: Do we want to return the full amount of system memory ? */
    329       uint64_t system_memory;
    330 
    331       if (!os_get_total_physical_memory(&system_memory))
    332          return 0;
    333 
    334       return (int)(system_memory >> 20);
    335    }
    336    }
    337 
    338    /* should only get here on unhandled cases */
    339    debug_printf("Unexpected PIPE_CAP %d query\n", param);
    340    return 0;
    341 }
    342 
    343 static int
    344 swr_get_shader_param(struct pipe_screen *screen,
    345                      unsigned shader,
    346                      enum pipe_shader_cap param)
    347 {
    348    if (shader == PIPE_SHADER_VERTEX || shader == PIPE_SHADER_FRAGMENT)
    349       return gallivm_get_shader_param(param);
    350 
    351    // Todo: geometry, tesselation, compute
    352    return 0;
    353 }
    354 
    355 
    356 static float
    357 swr_get_paramf(struct pipe_screen *screen, enum pipe_capf param)
    358 {
    359    switch (param) {
    360    case PIPE_CAPF_MAX_LINE_WIDTH:
    361    case PIPE_CAPF_MAX_LINE_WIDTH_AA:
    362    case PIPE_CAPF_MAX_POINT_WIDTH:
    363       return 255.0; /* arbitrary */
    364    case PIPE_CAPF_MAX_POINT_WIDTH_AA:
    365       return 0.0;
    366    case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
    367       return 0.0;
    368    case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
    369       return 16.0; /* arbitrary */
    370    case PIPE_CAPF_GUARD_BAND_LEFT:
    371    case PIPE_CAPF_GUARD_BAND_TOP:
    372    case PIPE_CAPF_GUARD_BAND_RIGHT:
    373    case PIPE_CAPF_GUARD_BAND_BOTTOM:
    374       return 0.0;
    375    }
    376    /* should only get here on unhandled cases */
    377    debug_printf("Unexpected PIPE_CAPF %d query\n", param);
    378    return 0.0;
    379 }
    380 
    381 SWR_FORMAT
    382 mesa_to_swr_format(enum pipe_format format)
    383 {
    384    static const std::map<pipe_format,SWR_FORMAT> mesa2swr = {
    385       /* depth / stencil */
    386       {PIPE_FORMAT_Z16_UNORM,              R16_UNORM}, // z
    387       {PIPE_FORMAT_Z32_FLOAT,              R32_FLOAT}, // z
    388       {PIPE_FORMAT_Z24_UNORM_S8_UINT,      R24_UNORM_X8_TYPELESS}, // z
    389       {PIPE_FORMAT_Z24X8_UNORM,            R24_UNORM_X8_TYPELESS}, // z
    390       {PIPE_FORMAT_Z32_FLOAT_S8X24_UINT,   R32_FLOAT_X8X24_TYPELESS}, // z
    391 
    392       /* alpha */
    393       {PIPE_FORMAT_A8_UNORM,               A8_UNORM},
    394       {PIPE_FORMAT_A16_UNORM,              A16_UNORM},
    395       {PIPE_FORMAT_A16_FLOAT,              A16_FLOAT},
    396       {PIPE_FORMAT_A32_FLOAT,              A32_FLOAT},
    397 
    398       /* odd sizes, bgr */
    399       {PIPE_FORMAT_B5G6R5_UNORM,           B5G6R5_UNORM},
    400       {PIPE_FORMAT_B5G6R5_SRGB,            B5G6R5_UNORM_SRGB},
    401       {PIPE_FORMAT_B5G5R5A1_UNORM,         B5G5R5A1_UNORM},
    402       {PIPE_FORMAT_B5G5R5X1_UNORM,         B5G5R5X1_UNORM},
    403       {PIPE_FORMAT_B4G4R4A4_UNORM,         B4G4R4A4_UNORM},
    404       {PIPE_FORMAT_B8G8R8A8_UNORM,         B8G8R8A8_UNORM},
    405       {PIPE_FORMAT_B8G8R8A8_SRGB,          B8G8R8A8_UNORM_SRGB},
    406       {PIPE_FORMAT_B8G8R8X8_UNORM,         B8G8R8X8_UNORM},
    407       {PIPE_FORMAT_B8G8R8X8_SRGB,          B8G8R8X8_UNORM_SRGB},
    408 
    409       /* rgb10a2 */
    410       {PIPE_FORMAT_R10G10B10A2_UNORM,      R10G10B10A2_UNORM},
    411       {PIPE_FORMAT_R10G10B10A2_SNORM,      R10G10B10A2_SNORM},
    412       {PIPE_FORMAT_R10G10B10A2_USCALED,    R10G10B10A2_USCALED},
    413       {PIPE_FORMAT_R10G10B10A2_SSCALED,    R10G10B10A2_SSCALED},
    414       {PIPE_FORMAT_R10G10B10A2_UINT,       R10G10B10A2_UINT},
    415 
    416       /* rgb10x2 */
    417       {PIPE_FORMAT_R10G10B10X2_USCALED,    R10G10B10X2_USCALED},
    418 
    419       /* bgr10a2 */
    420       {PIPE_FORMAT_B10G10R10A2_UNORM,      B10G10R10A2_UNORM},
    421       {PIPE_FORMAT_B10G10R10A2_SNORM,      B10G10R10A2_SNORM},
    422       {PIPE_FORMAT_B10G10R10A2_USCALED,    B10G10R10A2_USCALED},
    423       {PIPE_FORMAT_B10G10R10A2_SSCALED,    B10G10R10A2_SSCALED},
    424       {PIPE_FORMAT_B10G10R10A2_UINT,       B10G10R10A2_UINT},
    425 
    426       /* bgr10x2 */
    427       {PIPE_FORMAT_B10G10R10X2_UNORM,      B10G10R10X2_UNORM},
    428 
    429       /* r11g11b10 */
    430       {PIPE_FORMAT_R11G11B10_FLOAT,        R11G11B10_FLOAT},
    431 
    432       /* 32 bits per component */
    433       {PIPE_FORMAT_R32_FLOAT,              R32_FLOAT},
    434       {PIPE_FORMAT_R32G32_FLOAT,           R32G32_FLOAT},
    435       {PIPE_FORMAT_R32G32B32_FLOAT,        R32G32B32_FLOAT},
    436       {PIPE_FORMAT_R32G32B32A32_FLOAT,     R32G32B32A32_FLOAT},
    437       {PIPE_FORMAT_R32G32B32X32_FLOAT,     R32G32B32X32_FLOAT},
    438 
    439       {PIPE_FORMAT_R32_USCALED,            R32_USCALED},
    440       {PIPE_FORMAT_R32G32_USCALED,         R32G32_USCALED},
    441       {PIPE_FORMAT_R32G32B32_USCALED,      R32G32B32_USCALED},
    442       {PIPE_FORMAT_R32G32B32A32_USCALED,   R32G32B32A32_USCALED},
    443 
    444       {PIPE_FORMAT_R32_SSCALED,            R32_SSCALED},
    445       {PIPE_FORMAT_R32G32_SSCALED,         R32G32_SSCALED},
    446       {PIPE_FORMAT_R32G32B32_SSCALED,      R32G32B32_SSCALED},
    447       {PIPE_FORMAT_R32G32B32A32_SSCALED,   R32G32B32A32_SSCALED},
    448 
    449       {PIPE_FORMAT_R32_UINT,               R32_UINT},
    450       {PIPE_FORMAT_R32G32_UINT,            R32G32_UINT},
    451       {PIPE_FORMAT_R32G32B32_UINT,         R32G32B32_UINT},
    452       {PIPE_FORMAT_R32G32B32A32_UINT,      R32G32B32A32_UINT},
    453 
    454       {PIPE_FORMAT_R32_SINT,               R32_SINT},
    455       {PIPE_FORMAT_R32G32_SINT,            R32G32_SINT},
    456       {PIPE_FORMAT_R32G32B32_SINT,         R32G32B32_SINT},
    457       {PIPE_FORMAT_R32G32B32A32_SINT,      R32G32B32A32_SINT},
    458 
    459       /* 16 bits per component */
    460       {PIPE_FORMAT_R16_UNORM,              R16_UNORM},
    461       {PIPE_FORMAT_R16G16_UNORM,           R16G16_UNORM},
    462       {PIPE_FORMAT_R16G16B16_UNORM,        R16G16B16_UNORM},
    463       {PIPE_FORMAT_R16G16B16A16_UNORM,     R16G16B16A16_UNORM},
    464       {PIPE_FORMAT_R16G16B16X16_UNORM,     R16G16B16X16_UNORM},
    465 
    466       {PIPE_FORMAT_R16_USCALED,            R16_USCALED},
    467       {PIPE_FORMAT_R16G16_USCALED,         R16G16_USCALED},
    468       {PIPE_FORMAT_R16G16B16_USCALED,      R16G16B16_USCALED},
    469       {PIPE_FORMAT_R16G16B16A16_USCALED,   R16G16B16A16_USCALED},
    470 
    471       {PIPE_FORMAT_R16_SNORM,              R16_SNORM},
    472       {PIPE_FORMAT_R16G16_SNORM,           R16G16_SNORM},
    473       {PIPE_FORMAT_R16G16B16_SNORM,        R16G16B16_SNORM},
    474       {PIPE_FORMAT_R16G16B16A16_SNORM,     R16G16B16A16_SNORM},
    475 
    476       {PIPE_FORMAT_R16_SSCALED,            R16_SSCALED},
    477       {PIPE_FORMAT_R16G16_SSCALED,         R16G16_SSCALED},
    478       {PIPE_FORMAT_R16G16B16_SSCALED,      R16G16B16_SSCALED},
    479       {PIPE_FORMAT_R16G16B16A16_SSCALED,   R16G16B16A16_SSCALED},
    480 
    481       {PIPE_FORMAT_R16_UINT,               R16_UINT},
    482       {PIPE_FORMAT_R16G16_UINT,            R16G16_UINT},
    483       {PIPE_FORMAT_R16G16B16_UINT,         R16G16B16_UINT},
    484       {PIPE_FORMAT_R16G16B16A16_UINT,      R16G16B16A16_UINT},
    485 
    486       {PIPE_FORMAT_R16_SINT,               R16_SINT},
    487       {PIPE_FORMAT_R16G16_SINT,            R16G16_SINT},
    488       {PIPE_FORMAT_R16G16B16_SINT,         R16G16B16_SINT},
    489       {PIPE_FORMAT_R16G16B16A16_SINT,      R16G16B16A16_SINT},
    490 
    491       {PIPE_FORMAT_R16_FLOAT,              R16_FLOAT},
    492       {PIPE_FORMAT_R16G16_FLOAT,           R16G16_FLOAT},
    493       {PIPE_FORMAT_R16G16B16_FLOAT,        R16G16B16_FLOAT},
    494       {PIPE_FORMAT_R16G16B16A16_FLOAT,     R16G16B16A16_FLOAT},
    495       {PIPE_FORMAT_R16G16B16X16_FLOAT,     R16G16B16X16_FLOAT},
    496 
    497       /* 8 bits per component */
    498       {PIPE_FORMAT_R8_UNORM,               R8_UNORM},
    499       {PIPE_FORMAT_R8G8_UNORM,             R8G8_UNORM},
    500       {PIPE_FORMAT_R8G8B8_UNORM,           R8G8B8_UNORM},
    501       {PIPE_FORMAT_R8G8B8_SRGB,            R8G8B8_UNORM_SRGB},
    502       {PIPE_FORMAT_R8G8B8A8_UNORM,         R8G8B8A8_UNORM},
    503       {PIPE_FORMAT_R8G8B8A8_SRGB,          R8G8B8A8_UNORM_SRGB},
    504       {PIPE_FORMAT_R8G8B8X8_UNORM,         R8G8B8X8_UNORM},
    505       {PIPE_FORMAT_R8G8B8X8_SRGB,          R8G8B8X8_UNORM_SRGB},
    506 
    507       {PIPE_FORMAT_R8_USCALED,             R8_USCALED},
    508       {PIPE_FORMAT_R8G8_USCALED,           R8G8_USCALED},
    509       {PIPE_FORMAT_R8G8B8_USCALED,         R8G8B8_USCALED},
    510       {PIPE_FORMAT_R8G8B8A8_USCALED,       R8G8B8A8_USCALED},
    511 
    512       {PIPE_FORMAT_R8_SNORM,               R8_SNORM},
    513       {PIPE_FORMAT_R8G8_SNORM,             R8G8_SNORM},
    514       {PIPE_FORMAT_R8G8B8_SNORM,           R8G8B8_SNORM},
    515       {PIPE_FORMAT_R8G8B8A8_SNORM,         R8G8B8A8_SNORM},
    516 
    517       {PIPE_FORMAT_R8_SSCALED,             R8_SSCALED},
    518       {PIPE_FORMAT_R8G8_SSCALED,           R8G8_SSCALED},
    519       {PIPE_FORMAT_R8G8B8_SSCALED,         R8G8B8_SSCALED},
    520       {PIPE_FORMAT_R8G8B8A8_SSCALED,       R8G8B8A8_SSCALED},
    521 
    522       {PIPE_FORMAT_R8_UINT,                R8_UINT},
    523       {PIPE_FORMAT_R8G8_UINT,              R8G8_UINT},
    524       {PIPE_FORMAT_R8G8B8_UINT,            R8G8B8_UINT},
    525       {PIPE_FORMAT_R8G8B8A8_UINT,          R8G8B8A8_UINT},
    526 
    527       {PIPE_FORMAT_R8_SINT,                R8_SINT},
    528       {PIPE_FORMAT_R8G8_SINT,              R8G8_SINT},
    529       {PIPE_FORMAT_R8G8B8_SINT,            R8G8B8_SINT},
    530       {PIPE_FORMAT_R8G8B8A8_SINT,          R8G8B8A8_SINT},
    531 
    532       /* These formats are valid for vertex data, but should not be used
    533        * for render targets.
    534        */
    535 
    536       {PIPE_FORMAT_R32_FIXED,              R32_SFIXED},
    537       {PIPE_FORMAT_R32G32_FIXED,           R32G32_SFIXED},
    538       {PIPE_FORMAT_R32G32B32_FIXED,        R32G32B32_SFIXED},
    539       {PIPE_FORMAT_R32G32B32A32_FIXED,     R32G32B32A32_SFIXED},
    540 
    541       {PIPE_FORMAT_R64_FLOAT,              R64_FLOAT},
    542       {PIPE_FORMAT_R64G64_FLOAT,           R64G64_FLOAT},
    543       {PIPE_FORMAT_R64G64B64_FLOAT,        R64G64B64_FLOAT},
    544       {PIPE_FORMAT_R64G64B64A64_FLOAT,     R64G64B64A64_FLOAT},
    545 
    546       /* These formats have entries in SWR but don't have Load/StoreTile
    547        * implementations. That means these aren't renderable, and thus having
    548        * a mapping entry here is detrimental.
    549        */
    550       /*
    551 
    552       {PIPE_FORMAT_L8_UNORM,               L8_UNORM},
    553       {PIPE_FORMAT_I8_UNORM,               I8_UNORM},
    554       {PIPE_FORMAT_L8A8_UNORM,             L8A8_UNORM},
    555       {PIPE_FORMAT_L16_UNORM,              L16_UNORM},
    556       {PIPE_FORMAT_UYVY,                   YCRCB_SWAPUVY},
    557 
    558       {PIPE_FORMAT_L8_SRGB,                L8_UNORM_SRGB},
    559       {PIPE_FORMAT_L8A8_SRGB,              L8A8_UNORM_SRGB},
    560 
    561       {PIPE_FORMAT_DXT1_RGBA,              BC1_UNORM},
    562       {PIPE_FORMAT_DXT3_RGBA,              BC2_UNORM},
    563       {PIPE_FORMAT_DXT5_RGBA,              BC3_UNORM},
    564 
    565       {PIPE_FORMAT_DXT1_SRGBA,             BC1_UNORM_SRGB},
    566       {PIPE_FORMAT_DXT3_SRGBA,             BC2_UNORM_SRGB},
    567       {PIPE_FORMAT_DXT5_SRGBA,             BC3_UNORM_SRGB},
    568 
    569       {PIPE_FORMAT_RGTC1_UNORM,            BC4_UNORM},
    570       {PIPE_FORMAT_RGTC1_SNORM,            BC4_SNORM},
    571       {PIPE_FORMAT_RGTC2_UNORM,            BC5_UNORM},
    572       {PIPE_FORMAT_RGTC2_SNORM,            BC5_SNORM},
    573 
    574       {PIPE_FORMAT_L16A16_UNORM,           L16A16_UNORM},
    575       {PIPE_FORMAT_I16_UNORM,              I16_UNORM},
    576       {PIPE_FORMAT_L16_FLOAT,              L16_FLOAT},
    577       {PIPE_FORMAT_L16A16_FLOAT,           L16A16_FLOAT},
    578       {PIPE_FORMAT_I16_FLOAT,              I16_FLOAT},
    579       {PIPE_FORMAT_L32_FLOAT,              L32_FLOAT},
    580       {PIPE_FORMAT_L32A32_FLOAT,           L32A32_FLOAT},
    581       {PIPE_FORMAT_I32_FLOAT,              I32_FLOAT},
    582 
    583       {PIPE_FORMAT_I8_UINT,                I8_UINT},
    584       {PIPE_FORMAT_L8_UINT,                L8_UINT},
    585       {PIPE_FORMAT_L8A8_UINT,              L8A8_UINT},
    586 
    587       {PIPE_FORMAT_I8_SINT,                I8_SINT},
    588       {PIPE_FORMAT_L8_SINT,                L8_SINT},
    589       {PIPE_FORMAT_L8A8_SINT,              L8A8_SINT},
    590 
    591       */
    592    };
    593 
    594    auto it = mesa2swr.find(format);
    595    if (it == mesa2swr.end())
    596       return (SWR_FORMAT)-1;
    597    else
    598       return it->second;
    599 }
    600 
    601 static boolean
    602 swr_displaytarget_layout(struct swr_screen *screen, struct swr_resource *res)
    603 {
    604    struct sw_winsys *winsys = screen->winsys;
    605    struct sw_displaytarget *dt;
    606 
    607    const unsigned width = align(res->swr.width, res->swr.halign);
    608    const unsigned height = align(res->swr.height, res->swr.valign);
    609 
    610    UINT stride;
    611    dt = winsys->displaytarget_create(winsys,
    612                                      res->base.bind,
    613                                      res->base.format,
    614                                      width, height,
    615                                      64, NULL,
    616                                      &stride);
    617 
    618    if (dt == NULL)
    619       return FALSE;
    620 
    621    void *map = winsys->displaytarget_map(winsys, dt, 0);
    622 
    623    res->display_target = dt;
    624    res->swr.pBaseAddress = (uint8_t*) map;
    625 
    626    /* Clear the display target surface */
    627    if (map)
    628       memset(map, 0, height * stride);
    629 
    630    winsys->displaytarget_unmap(winsys, dt);
    631 
    632    return TRUE;
    633 }
    634 
    635 static bool
    636 swr_texture_layout(struct swr_screen *screen,
    637                    struct swr_resource *res,
    638                    boolean allocate)
    639 {
    640    struct pipe_resource *pt = &res->base;
    641 
    642    pipe_format fmt = pt->format;
    643    const struct util_format_description *desc = util_format_description(fmt);
    644 
    645    res->has_depth = util_format_has_depth(desc);
    646    res->has_stencil = util_format_has_stencil(desc);
    647 
    648    if (res->has_stencil && !res->has_depth)
    649       fmt = PIPE_FORMAT_R8_UINT;
    650 
    651    /* We always use the SWR layout. For 2D and 3D textures this looks like:
    652     *
    653     * |<------- pitch ------->|
    654     * +=======================+-------
    655     * |Array 0                |   ^
    656     * |                       |   |
    657     * |        Level 0        |   |
    658     * |                       |   |
    659     * |                       | qpitch
    660     * +-----------+-----------+   |
    661     * |           | L2L2L2L2  |   |
    662     * |  Level 1  | L3L3      |   |
    663     * |           | L4        |   v
    664     * +===========+===========+-------
    665     * |Array 1                |
    666     * |                       |
    667     * |        Level 0        |
    668     * |                       |
    669     * |                       |
    670     * +-----------+-----------+
    671     * |           | L2L2L2L2  |
    672     * |  Level 1  | L3L3      |
    673     * |           | L4        |
    674     * +===========+===========+
    675     *
    676     * The overall width in bytes is known as the pitch, while the overall
    677     * height in rows is the qpitch. Array slices are laid out logically below
    678     * one another, qpitch rows apart. For 3D surfaces, the "level" values are
    679     * just invalid for the higher array numbers (since depth is also
    680     * minified). 1D and 1D array surfaces are stored effectively the same way,
    681     * except that pitch never plays into it. All the levels are logically
    682     * adjacent to each other on the X axis. The qpitch becomes the number of
    683     * elements between array slices, while the pitch is unused.
    684     *
    685     * Each level's sizes are subject to the valign and halign settings of the
    686     * surface. For compressed formats that swr is unaware of, we will use an
    687     * appropriately-sized uncompressed format, and scale the widths/heights.
    688     *
    689     * This surface is stored inside res->swr. For depth/stencil textures,
    690     * res->secondary will have an identically-laid-out but R8_UINT-formatted
    691     * stencil tree. In the Z32F_S8 case, the primary surface still has 64-bpp
    692     * texels, to simplify map/unmap logic which copies the stencil values
    693     * in/out.
    694     */
    695 
    696    res->swr.width = pt->width0;
    697    res->swr.height = pt->height0;
    698    res->swr.type = swr_convert_target_type(pt->target);
    699    res->swr.tileMode = SWR_TILE_NONE;
    700    res->swr.format = mesa_to_swr_format(fmt);
    701    res->swr.numSamples = std::max(1u, pt->nr_samples);
    702 
    703    if (pt->bind & (PIPE_BIND_RENDER_TARGET | PIPE_BIND_DEPTH_STENCIL)) {
    704       res->swr.halign = KNOB_MACROTILE_X_DIM;
    705       res->swr.valign = KNOB_MACROTILE_Y_DIM;
    706    } else {
    707       res->swr.halign = 1;
    708       res->swr.valign = 1;
    709    }
    710 
    711    unsigned halign = res->swr.halign * util_format_get_blockwidth(fmt);
    712    unsigned width = align(pt->width0, halign);
    713    if (pt->target == PIPE_TEXTURE_1D || pt->target == PIPE_TEXTURE_1D_ARRAY) {
    714       for (int level = 1; level <= pt->last_level; level++)
    715          width += align(u_minify(pt->width0, level), halign);
    716       res->swr.pitch = util_format_get_blocksize(fmt);
    717       res->swr.qpitch = util_format_get_nblocksx(fmt, width);
    718    } else {
    719       // The pitch is the overall width of the texture in bytes. Most of the
    720       // time this is the pitch of level 0 since all the other levels fit
    721       // underneath it. However in some degenerate situations, the width of
    722       // level1 + level2 may be larger. In that case, we use those
    723       // widths. This can happen if, e.g. halign is 32, and the width of level
    724       // 0 is 32 or less. In that case, the aligned levels 1 and 2 will also
    725       // be 32 each, adding up to 64.
    726       unsigned valign = res->swr.valign * util_format_get_blockheight(fmt);
    727       if (pt->last_level > 1) {
    728          width = std::max<uint32_t>(
    729                width,
    730                align(u_minify(pt->width0, 1), halign) +
    731                align(u_minify(pt->width0, 2), halign));
    732       }
    733       res->swr.pitch = util_format_get_stride(fmt, width);
    734 
    735       // The qpitch is controlled by either the height of the second LOD, or
    736       // the combination of all the later LODs.
    737       unsigned height = align(pt->height0, valign);
    738       if (pt->last_level == 1) {
    739          height += align(u_minify(pt->height0, 1), valign);
    740       } else if (pt->last_level > 1) {
    741          unsigned level1 = align(u_minify(pt->height0, 1), valign);
    742          unsigned level2 = 0;
    743          for (int level = 2; level <= pt->last_level; level++) {
    744             level2 += align(u_minify(pt->height0, level), valign);
    745          }
    746          height += std::max(level1, level2);
    747       }
    748       res->swr.qpitch = util_format_get_nblocksy(fmt, height);
    749    }
    750 
    751    if (pt->target == PIPE_TEXTURE_3D)
    752       res->swr.depth = pt->depth0;
    753    else
    754       res->swr.depth = pt->array_size;
    755 
    756    // Fix up swr format if necessary so that LOD offset computation works
    757    if (res->swr.format == (SWR_FORMAT)-1) {
    758       switch (util_format_get_blocksize(fmt)) {
    759       default:
    760          unreachable("Unexpected format block size");
    761       case 1: res->swr.format = R8_UINT; break;
    762       case 2: res->swr.format = R16_UINT; break;
    763       case 4: res->swr.format = R32_UINT; break;
    764       case 8:
    765          if (util_format_is_compressed(fmt))
    766             res->swr.format = BC4_UNORM;
    767          else
    768             res->swr.format = R32G32_UINT;
    769          break;
    770       case 16:
    771          if (util_format_is_compressed(fmt))
    772             res->swr.format = BC5_UNORM;
    773          else
    774             res->swr.format = R32G32B32A32_UINT;
    775          break;
    776       }
    777    }
    778 
    779    for (int level = 0; level <= pt->last_level; level++) {
    780       res->mip_offsets[level] =
    781          ComputeSurfaceOffset<false>(0, 0, 0, 0, 0, level, &res->swr);
    782    }
    783 
    784    size_t total_size =
    785       (size_t)res->swr.depth * res->swr.qpitch * res->swr.pitch;
    786    if (total_size > SWR_MAX_TEXTURE_SIZE)
    787       return false;
    788 
    789    if (allocate) {
    790       res->swr.pBaseAddress = (uint8_t *)AlignedMalloc(total_size, 64);
    791 
    792       if (res->has_depth && res->has_stencil) {
    793          res->secondary = res->swr;
    794          res->secondary.format = R8_UINT;
    795          res->secondary.pitch = res->swr.pitch / util_format_get_blocksize(fmt);
    796 
    797          for (int level = 0; level <= pt->last_level; level++) {
    798             res->secondary_mip_offsets[level] =
    799                ComputeSurfaceOffset<false>(0, 0, 0, 0, 0, level, &res->secondary);
    800          }
    801 
    802          res->secondary.pBaseAddress = (uint8_t *)AlignedMalloc(
    803             res->secondary.depth * res->secondary.qpitch *
    804             res->secondary.pitch, 64);
    805       }
    806    }
    807 
    808    return true;
    809 }
    810 
    811 static boolean
    812 swr_can_create_resource(struct pipe_screen *screen,
    813                         const struct pipe_resource *templat)
    814 {
    815    struct swr_resource res;
    816    memset(&res, 0, sizeof(res));
    817    res.base = *templat;
    818    return swr_texture_layout(swr_screen(screen), &res, false);
    819 }
    820 
    821 static struct pipe_resource *
    822 swr_resource_create(struct pipe_screen *_screen,
    823                     const struct pipe_resource *templat)
    824 {
    825    struct swr_screen *screen = swr_screen(_screen);
    826    struct swr_resource *res = CALLOC_STRUCT(swr_resource);
    827    if (!res)
    828       return NULL;
    829 
    830    res->base = *templat;
    831    pipe_reference_init(&res->base.reference, 1);
    832    res->base.screen = &screen->base;
    833 
    834    if (swr_resource_is_texture(&res->base)) {
    835       if (res->base.bind & (PIPE_BIND_DISPLAY_TARGET | PIPE_BIND_SCANOUT
    836                             | PIPE_BIND_SHARED)) {
    837          /* displayable surface
    838           * first call swr_texture_layout without allocating to finish
    839           * filling out the SWR_SURFAE_STATE in res */
    840          swr_texture_layout(screen, res, false);
    841          if (!swr_displaytarget_layout(screen, res))
    842             goto fail;
    843       } else {
    844          /* texture map */
    845          if (!swr_texture_layout(screen, res, true))
    846             goto fail;
    847       }
    848    } else {
    849       /* other data (vertex buffer, const buffer, etc) */
    850       assert(util_format_get_blocksize(templat->format) == 1);
    851       assert(templat->height0 == 1);
    852       assert(templat->depth0 == 1);
    853       assert(templat->last_level == 0);
    854 
    855       /* Easiest to just call swr_texture_layout, as it sets up
    856        * SWR_SURFAE_STATE in res */
    857       if (!swr_texture_layout(screen, res, true))
    858          goto fail;
    859    }
    860 
    861    return &res->base;
    862 
    863 fail:
    864    FREE(res);
    865    return NULL;
    866 }
    867 
    868 static void
    869 swr_resource_destroy(struct pipe_screen *p_screen, struct pipe_resource *pt)
    870 {
    871    struct swr_screen *screen = swr_screen(p_screen);
    872    struct swr_resource *spr = swr_resource(pt);
    873    struct pipe_context *pipe = screen->pipe;
    874 
    875    if (spr->display_target) {
    876       /* If resource is display target, winsys manages the buffer and will
    877        * free it on displaytarget_destroy. */
    878       swr_fence_finish(p_screen, NULL, screen->flush_fence, 0);
    879 
    880       struct sw_winsys *winsys = screen->winsys;
    881       winsys->displaytarget_destroy(winsys, spr->display_target);
    882 
    883    } else {
    884       /* For regular resources, defer deletion */
    885       swr_resource_unused(pt);
    886       swr_fence_work_free(screen->flush_fence, spr->swr.pBaseAddress, true);
    887       swr_fence_work_free(screen->flush_fence,
    888                           spr->secondary.pBaseAddress, true);
    889    }
    890 
    891    FREE(spr);
    892 }
    893 
    894 
    895 static void
    896 swr_flush_frontbuffer(struct pipe_screen *p_screen,
    897                       struct pipe_resource *resource,
    898                       unsigned level,
    899                       unsigned layer,
    900                       void *context_private,
    901                       struct pipe_box *sub_box)
    902 {
    903    struct swr_screen *screen = swr_screen(p_screen);
    904    struct sw_winsys *winsys = screen->winsys;
    905    struct swr_resource *spr = swr_resource(resource);
    906    struct pipe_context *pipe = screen->pipe;
    907 
    908    if (pipe) {
    909       swr_fence_finish(p_screen, NULL, screen->flush_fence, 0);
    910       swr_resource_unused(resource);
    911       SwrEndFrame(swr_context(pipe)->swrContext);
    912    }
    913 
    914    debug_assert(spr->display_target);
    915    if (spr->display_target)
    916       winsys->displaytarget_display(
    917          winsys, spr->display_target, context_private, sub_box);
    918 }
    919 
    920 
    921 static void
    922 swr_destroy_screen(struct pipe_screen *p_screen)
    923 {
    924    struct swr_screen *screen = swr_screen(p_screen);
    925    struct sw_winsys *winsys = screen->winsys;
    926 
    927    fprintf(stderr, "SWR destroy screen!\n");
    928 
    929    swr_fence_finish(p_screen, NULL, screen->flush_fence, 0);
    930    swr_fence_reference(p_screen, &screen->flush_fence, NULL);
    931 
    932    JitDestroyContext(screen->hJitMgr);
    933 
    934    if (winsys->destroy)
    935       winsys->destroy(winsys);
    936 
    937    FREE(screen);
    938 }
    939 
    940 PUBLIC
    941 struct pipe_screen *
    942 swr_create_screen_internal(struct sw_winsys *winsys)
    943 {
    944    struct swr_screen *screen = CALLOC_STRUCT(swr_screen);
    945 
    946    if (!screen)
    947       return NULL;
    948 
    949    if (!getenv("KNOB_MAX_PRIMS_PER_DRAW")) {
    950       g_GlobalKnobs.MAX_PRIMS_PER_DRAW.Value(49152);
    951    }
    952 
    953    if (!lp_build_init()) {
    954       FREE(screen);
    955       return NULL;
    956    }
    957 
    958    screen->winsys = winsys;
    959    screen->base.get_name = swr_get_name;
    960    screen->base.get_vendor = swr_get_vendor;
    961    screen->base.is_format_supported = swr_is_format_supported;
    962    screen->base.context_create = swr_create_context;
    963    screen->base.can_create_resource = swr_can_create_resource;
    964 
    965    screen->base.destroy = swr_destroy_screen;
    966    screen->base.get_param = swr_get_param;
    967    screen->base.get_shader_param = swr_get_shader_param;
    968    screen->base.get_paramf = swr_get_paramf;
    969 
    970    screen->base.resource_create = swr_resource_create;
    971    screen->base.resource_destroy = swr_resource_destroy;
    972 
    973    screen->base.flush_frontbuffer = swr_flush_frontbuffer;
    974 
    975    screen->hJitMgr = JitCreateContext(KNOB_SIMD_WIDTH, KNOB_ARCH_STR, "swr");
    976 
    977    swr_fence_init(&screen->base);
    978 
    979    util_format_s3tc_init();
    980 
    981    return &screen->base;
    982 }
    983 
    984