Home | History | Annotate | Download | only in swr
      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 (2 * 1024 * 1024 * 1024ULL) /* 2GB */
     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 8192
     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    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_SM3:
    207    case PIPE_CAP_POINT_SPRITE:
    208    case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
    209    case PIPE_CAP_OCCLUSION_QUERY:
    210    case PIPE_CAP_QUERY_TIME_ELAPSED:
    211    case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
    212    case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
    213    case PIPE_CAP_TEXTURE_SWIZZLE:
    214    case PIPE_CAP_BLEND_EQUATION_SEPARATE:
    215    case PIPE_CAP_INDEP_BLEND_ENABLE:
    216    case PIPE_CAP_INDEP_BLEND_FUNC:
    217    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
    218    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
    219    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
    220    case PIPE_CAP_DEPTH_CLIP_DISABLE:
    221    case PIPE_CAP_PRIMITIVE_RESTART:
    222    case PIPE_CAP_TGSI_INSTANCEID:
    223    case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
    224    case PIPE_CAP_START_INSTANCE:
    225    case PIPE_CAP_SEAMLESS_CUBE_MAP:
    226    case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
    227    case PIPE_CAP_CONDITIONAL_RENDER:
    228    case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
    229    case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
    230    case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
    231    case PIPE_CAP_USER_VERTEX_BUFFERS:
    232    case PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS:
    233    case PIPE_CAP_QUERY_TIMESTAMP:
    234    case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
    235    case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
    236    case PIPE_CAP_DRAW_INDIRECT:
    237    case PIPE_CAP_UMA:
    238    case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
    239    case PIPE_CAP_CLIP_HALFZ:
    240    case PIPE_CAP_POLYGON_OFFSET_CLAMP:
    241    case PIPE_CAP_DEPTH_BOUNDS_TEST:
    242    case PIPE_CAP_CLEAR_TEXTURE:
    243    case PIPE_CAP_TEXTURE_FLOAT_LINEAR:
    244    case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
    245    case PIPE_CAP_CULL_DISTANCE:
    246    case PIPE_CAP_CUBE_MAP_ARRAY:
    247    case PIPE_CAP_DOUBLES:
    248       return 1;
    249 
    250    /* MSAA support
    251     * If user has explicitly set max_sample_count = 1 (via SWR_MSAA_MAX_COUNT)
    252     * then disable all MSAA support and go back to old (FAKE_SW_MSAA) caps. */
    253    case PIPE_CAP_TEXTURE_MULTISAMPLE:
    254    case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
    255       return (swr_screen(screen)->msaa_max_count > 1) ? 1 : 0;
    256    case PIPE_CAP_FAKE_SW_MSAA:
    257       return (swr_screen(screen)->msaa_max_count > 1) ? 0 : 1;
    258 
    259    /* fetch jit change for 2-4GB buffers requires alignment */
    260    case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
    261    case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
    262    case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
    263       return 1;
    264 
    265       /* unsupported features */
    266    case PIPE_CAP_ANISOTROPIC_FILTER:
    267    case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
    268    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
    269    case PIPE_CAP_SHADER_STENCIL_EXPORT:
    270    case PIPE_CAP_TEXTURE_BARRIER:
    271    case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
    272    case PIPE_CAP_VERTEX_COLOR_CLAMPED:
    273    case PIPE_CAP_COMPUTE:
    274    case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
    275    case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
    276    case PIPE_CAP_TGSI_TEXCOORD:
    277    case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
    278    case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
    279    case PIPE_CAP_TEXTURE_GATHER_SM5:
    280    case PIPE_CAP_TEXTURE_QUERY_LOD:
    281    case PIPE_CAP_SAMPLE_SHADING:
    282    case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
    283    case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
    284    case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
    285    case PIPE_CAP_SAMPLER_VIEW_TARGET:
    286    case PIPE_CAP_VERTEXID_NOBASE:
    287    case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
    288    case PIPE_CAP_DEVICE_RESET_STATUS_QUERY:
    289    case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:
    290    case PIPE_CAP_TGSI_TXQS:
    291    case PIPE_CAP_FORCE_PERSAMPLE_INTERP:
    292    case PIPE_CAP_SHAREABLE_SHADERS:
    293    case PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS:
    294    case PIPE_CAP_DRAW_PARAMETERS:
    295    case PIPE_CAP_TGSI_PACK_HALF_FLOAT:
    296    case PIPE_CAP_MULTI_DRAW_INDIRECT:
    297    case PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS:
    298    case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
    299    case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
    300    case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
    301    case PIPE_CAP_INVALIDATE_BUFFER:
    302    case PIPE_CAP_GENERATE_MIPMAP:
    303    case PIPE_CAP_STRING_MARKER:
    304    case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
    305    case PIPE_CAP_SURFACE_REINTERPRET_BLOCKS:
    306    case PIPE_CAP_QUERY_BUFFER_OBJECT:
    307    case PIPE_CAP_QUERY_MEMORY_INFO:
    308    case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
    309    case PIPE_CAP_PCI_GROUP:
    310    case PIPE_CAP_PCI_BUS:
    311    case PIPE_CAP_PCI_DEVICE:
    312    case PIPE_CAP_PCI_FUNCTION:
    313    case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
    314    case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
    315    case PIPE_CAP_TGSI_VOTE:
    316    case PIPE_CAP_MAX_WINDOW_RECTANGLES:
    317    case PIPE_CAP_POLYGON_OFFSET_UNITS_UNSCALED:
    318    case PIPE_CAP_VIEWPORT_SUBPIXEL_BITS:
    319    case PIPE_CAP_TGSI_ARRAY_COMPONENTS:
    320    case PIPE_CAP_TGSI_CAN_READ_OUTPUTS:
    321    case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
    322    case PIPE_CAP_NATIVE_FENCE_FD:
    323    case PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY:
    324    case PIPE_CAP_TGSI_FS_FBFETCH:
    325    case PIPE_CAP_TGSI_MUL_ZERO_WINS:
    326    case PIPE_CAP_INT64:
    327    case PIPE_CAP_INT64_DIVMOD:
    328    case PIPE_CAP_TGSI_TEX_TXF_LZ:
    329    case PIPE_CAP_TGSI_CLOCK:
    330    case PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE:
    331    case PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE:
    332    case PIPE_CAP_TGSI_BALLOT:
    333    case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
    334    case PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX:
    335    case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
    336    case PIPE_CAP_POST_DEPTH_COVERAGE:
    337    case PIPE_CAP_BINDLESS_TEXTURE:
    338    case PIPE_CAP_NIR_SAMPLERS_AS_DEREF:
    339    case PIPE_CAP_QUERY_SO_OVERFLOW:
    340    case PIPE_CAP_MEMOBJ:
    341    case PIPE_CAP_LOAD_CONSTBUF:
    342    case PIPE_CAP_TGSI_ANY_REG_AS_ADDRESS:
    343    case PIPE_CAP_TILE_RASTER_ORDER:
    344    case PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES:
    345    case PIPE_CAP_SIGNED_VERTEX_BUFFER_OFFSET:
    346    case PIPE_CAP_CONTEXT_PRIORITY_MASK:
    347       return 0;
    348 
    349    case PIPE_CAP_VENDOR_ID:
    350       return 0xFFFFFFFF;
    351    case PIPE_CAP_DEVICE_ID:
    352       return 0xFFFFFFFF;
    353    case PIPE_CAP_ACCELERATED:
    354       return 0;
    355    case PIPE_CAP_VIDEO_MEMORY: {
    356       /* XXX: Do we want to return the full amount of system memory ? */
    357       uint64_t system_memory;
    358 
    359       if (!os_get_total_physical_memory(&system_memory))
    360          return 0;
    361 
    362       return (int)(system_memory >> 20);
    363    }
    364    }
    365 
    366    /* should only get here on unhandled cases */
    367    debug_printf("Unexpected PIPE_CAP %d query\n", param);
    368    return 0;
    369 }
    370 
    371 static int
    372 swr_get_shader_param(struct pipe_screen *screen,
    373                      enum pipe_shader_type shader,
    374                      enum pipe_shader_cap param)
    375 {
    376    if (shader == PIPE_SHADER_VERTEX ||
    377        shader == PIPE_SHADER_FRAGMENT ||
    378        shader == PIPE_SHADER_GEOMETRY)
    379       return gallivm_get_shader_param(param);
    380 
    381    // Todo: tesselation, compute
    382    return 0;
    383 }
    384 
    385 
    386 static float
    387 swr_get_paramf(struct pipe_screen *screen, enum pipe_capf param)
    388 {
    389    switch (param) {
    390    case PIPE_CAPF_MAX_LINE_WIDTH:
    391    case PIPE_CAPF_MAX_LINE_WIDTH_AA:
    392    case PIPE_CAPF_MAX_POINT_WIDTH:
    393       return 255.0; /* arbitrary */
    394    case PIPE_CAPF_MAX_POINT_WIDTH_AA:
    395       return 0.0;
    396    case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
    397       return 0.0;
    398    case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
    399       return 16.0; /* arbitrary */
    400    case PIPE_CAPF_GUARD_BAND_LEFT:
    401    case PIPE_CAPF_GUARD_BAND_TOP:
    402    case PIPE_CAPF_GUARD_BAND_RIGHT:
    403    case PIPE_CAPF_GUARD_BAND_BOTTOM:
    404       return 0.0;
    405    }
    406    /* should only get here on unhandled cases */
    407    debug_printf("Unexpected PIPE_CAPF %d query\n", param);
    408    return 0.0;
    409 }
    410 
    411 SWR_FORMAT
    412 mesa_to_swr_format(enum pipe_format format)
    413 {
    414    static const std::map<pipe_format,SWR_FORMAT> mesa2swr = {
    415       /* depth / stencil */
    416       {PIPE_FORMAT_Z16_UNORM,              R16_UNORM}, // z
    417       {PIPE_FORMAT_Z32_FLOAT,              R32_FLOAT}, // z
    418       {PIPE_FORMAT_Z24_UNORM_S8_UINT,      R24_UNORM_X8_TYPELESS}, // z
    419       {PIPE_FORMAT_Z24X8_UNORM,            R24_UNORM_X8_TYPELESS}, // z
    420       {PIPE_FORMAT_Z32_FLOAT_S8X24_UINT,   R32_FLOAT_X8X24_TYPELESS}, // z
    421 
    422       /* alpha */
    423       {PIPE_FORMAT_A8_UNORM,               A8_UNORM},
    424       {PIPE_FORMAT_A16_UNORM,              A16_UNORM},
    425       {PIPE_FORMAT_A16_FLOAT,              A16_FLOAT},
    426       {PIPE_FORMAT_A32_FLOAT,              A32_FLOAT},
    427 
    428       /* odd sizes, bgr */
    429       {PIPE_FORMAT_B5G6R5_UNORM,           B5G6R5_UNORM},
    430       {PIPE_FORMAT_B5G6R5_SRGB,            B5G6R5_UNORM_SRGB},
    431       {PIPE_FORMAT_B5G5R5A1_UNORM,         B5G5R5A1_UNORM},
    432       {PIPE_FORMAT_B5G5R5X1_UNORM,         B5G5R5X1_UNORM},
    433       {PIPE_FORMAT_B4G4R4A4_UNORM,         B4G4R4A4_UNORM},
    434       {PIPE_FORMAT_B8G8R8A8_UNORM,         B8G8R8A8_UNORM},
    435       {PIPE_FORMAT_B8G8R8A8_SRGB,          B8G8R8A8_UNORM_SRGB},
    436       {PIPE_FORMAT_B8G8R8X8_UNORM,         B8G8R8X8_UNORM},
    437       {PIPE_FORMAT_B8G8R8X8_SRGB,          B8G8R8X8_UNORM_SRGB},
    438 
    439       /* rgb10a2 */
    440       {PIPE_FORMAT_R10G10B10A2_UNORM,      R10G10B10A2_UNORM},
    441       {PIPE_FORMAT_R10G10B10A2_SNORM,      R10G10B10A2_SNORM},
    442       {PIPE_FORMAT_R10G10B10A2_USCALED,    R10G10B10A2_USCALED},
    443       {PIPE_FORMAT_R10G10B10A2_SSCALED,    R10G10B10A2_SSCALED},
    444       {PIPE_FORMAT_R10G10B10A2_UINT,       R10G10B10A2_UINT},
    445 
    446       /* rgb10x2 */
    447       {PIPE_FORMAT_R10G10B10X2_USCALED,    R10G10B10X2_USCALED},
    448 
    449       /* bgr10a2 */
    450       {PIPE_FORMAT_B10G10R10A2_UNORM,      B10G10R10A2_UNORM},
    451       {PIPE_FORMAT_B10G10R10A2_SNORM,      B10G10R10A2_SNORM},
    452       {PIPE_FORMAT_B10G10R10A2_USCALED,    B10G10R10A2_USCALED},
    453       {PIPE_FORMAT_B10G10R10A2_SSCALED,    B10G10R10A2_SSCALED},
    454       {PIPE_FORMAT_B10G10R10A2_UINT,       B10G10R10A2_UINT},
    455 
    456       /* bgr10x2 */
    457       {PIPE_FORMAT_B10G10R10X2_UNORM,      B10G10R10X2_UNORM},
    458 
    459       /* r11g11b10 */
    460       {PIPE_FORMAT_R11G11B10_FLOAT,        R11G11B10_FLOAT},
    461 
    462       /* 32 bits per component */
    463       {PIPE_FORMAT_R32_FLOAT,              R32_FLOAT},
    464       {PIPE_FORMAT_R32G32_FLOAT,           R32G32_FLOAT},
    465       {PIPE_FORMAT_R32G32B32_FLOAT,        R32G32B32_FLOAT},
    466       {PIPE_FORMAT_R32G32B32A32_FLOAT,     R32G32B32A32_FLOAT},
    467       {PIPE_FORMAT_R32G32B32X32_FLOAT,     R32G32B32X32_FLOAT},
    468 
    469       {PIPE_FORMAT_R32_USCALED,            R32_USCALED},
    470       {PIPE_FORMAT_R32G32_USCALED,         R32G32_USCALED},
    471       {PIPE_FORMAT_R32G32B32_USCALED,      R32G32B32_USCALED},
    472       {PIPE_FORMAT_R32G32B32A32_USCALED,   R32G32B32A32_USCALED},
    473 
    474       {PIPE_FORMAT_R32_SSCALED,            R32_SSCALED},
    475       {PIPE_FORMAT_R32G32_SSCALED,         R32G32_SSCALED},
    476       {PIPE_FORMAT_R32G32B32_SSCALED,      R32G32B32_SSCALED},
    477       {PIPE_FORMAT_R32G32B32A32_SSCALED,   R32G32B32A32_SSCALED},
    478 
    479       {PIPE_FORMAT_R32_UINT,               R32_UINT},
    480       {PIPE_FORMAT_R32G32_UINT,            R32G32_UINT},
    481       {PIPE_FORMAT_R32G32B32_UINT,         R32G32B32_UINT},
    482       {PIPE_FORMAT_R32G32B32A32_UINT,      R32G32B32A32_UINT},
    483 
    484       {PIPE_FORMAT_R32_SINT,               R32_SINT},
    485       {PIPE_FORMAT_R32G32_SINT,            R32G32_SINT},
    486       {PIPE_FORMAT_R32G32B32_SINT,         R32G32B32_SINT},
    487       {PIPE_FORMAT_R32G32B32A32_SINT,      R32G32B32A32_SINT},
    488 
    489       /* 16 bits per component */
    490       {PIPE_FORMAT_R16_UNORM,              R16_UNORM},
    491       {PIPE_FORMAT_R16G16_UNORM,           R16G16_UNORM},
    492       {PIPE_FORMAT_R16G16B16_UNORM,        R16G16B16_UNORM},
    493       {PIPE_FORMAT_R16G16B16A16_UNORM,     R16G16B16A16_UNORM},
    494       {PIPE_FORMAT_R16G16B16X16_UNORM,     R16G16B16X16_UNORM},
    495 
    496       {PIPE_FORMAT_R16_USCALED,            R16_USCALED},
    497       {PIPE_FORMAT_R16G16_USCALED,         R16G16_USCALED},
    498       {PIPE_FORMAT_R16G16B16_USCALED,      R16G16B16_USCALED},
    499       {PIPE_FORMAT_R16G16B16A16_USCALED,   R16G16B16A16_USCALED},
    500 
    501       {PIPE_FORMAT_R16_SNORM,              R16_SNORM},
    502       {PIPE_FORMAT_R16G16_SNORM,           R16G16_SNORM},
    503       {PIPE_FORMAT_R16G16B16_SNORM,        R16G16B16_SNORM},
    504       {PIPE_FORMAT_R16G16B16A16_SNORM,     R16G16B16A16_SNORM},
    505 
    506       {PIPE_FORMAT_R16_SSCALED,            R16_SSCALED},
    507       {PIPE_FORMAT_R16G16_SSCALED,         R16G16_SSCALED},
    508       {PIPE_FORMAT_R16G16B16_SSCALED,      R16G16B16_SSCALED},
    509       {PIPE_FORMAT_R16G16B16A16_SSCALED,   R16G16B16A16_SSCALED},
    510 
    511       {PIPE_FORMAT_R16_UINT,               R16_UINT},
    512       {PIPE_FORMAT_R16G16_UINT,            R16G16_UINT},
    513       {PIPE_FORMAT_R16G16B16_UINT,         R16G16B16_UINT},
    514       {PIPE_FORMAT_R16G16B16A16_UINT,      R16G16B16A16_UINT},
    515 
    516       {PIPE_FORMAT_R16_SINT,               R16_SINT},
    517       {PIPE_FORMAT_R16G16_SINT,            R16G16_SINT},
    518       {PIPE_FORMAT_R16G16B16_SINT,         R16G16B16_SINT},
    519       {PIPE_FORMAT_R16G16B16A16_SINT,      R16G16B16A16_SINT},
    520 
    521       {PIPE_FORMAT_R16_FLOAT,              R16_FLOAT},
    522       {PIPE_FORMAT_R16G16_FLOAT,           R16G16_FLOAT},
    523       {PIPE_FORMAT_R16G16B16_FLOAT,        R16G16B16_FLOAT},
    524       {PIPE_FORMAT_R16G16B16A16_FLOAT,     R16G16B16A16_FLOAT},
    525       {PIPE_FORMAT_R16G16B16X16_FLOAT,     R16G16B16X16_FLOAT},
    526 
    527       /* 8 bits per component */
    528       {PIPE_FORMAT_R8_UNORM,               R8_UNORM},
    529       {PIPE_FORMAT_R8G8_UNORM,             R8G8_UNORM},
    530       {PIPE_FORMAT_R8G8B8_UNORM,           R8G8B8_UNORM},
    531       {PIPE_FORMAT_R8G8B8_SRGB,            R8G8B8_UNORM_SRGB},
    532       {PIPE_FORMAT_R8G8B8A8_UNORM,         R8G8B8A8_UNORM},
    533       {PIPE_FORMAT_R8G8B8A8_SRGB,          R8G8B8A8_UNORM_SRGB},
    534       {PIPE_FORMAT_R8G8B8X8_UNORM,         R8G8B8X8_UNORM},
    535       {PIPE_FORMAT_R8G8B8X8_SRGB,          R8G8B8X8_UNORM_SRGB},
    536 
    537       {PIPE_FORMAT_R8_USCALED,             R8_USCALED},
    538       {PIPE_FORMAT_R8G8_USCALED,           R8G8_USCALED},
    539       {PIPE_FORMAT_R8G8B8_USCALED,         R8G8B8_USCALED},
    540       {PIPE_FORMAT_R8G8B8A8_USCALED,       R8G8B8A8_USCALED},
    541 
    542       {PIPE_FORMAT_R8_SNORM,               R8_SNORM},
    543       {PIPE_FORMAT_R8G8_SNORM,             R8G8_SNORM},
    544       {PIPE_FORMAT_R8G8B8_SNORM,           R8G8B8_SNORM},
    545       {PIPE_FORMAT_R8G8B8A8_SNORM,         R8G8B8A8_SNORM},
    546 
    547       {PIPE_FORMAT_R8_SSCALED,             R8_SSCALED},
    548       {PIPE_FORMAT_R8G8_SSCALED,           R8G8_SSCALED},
    549       {PIPE_FORMAT_R8G8B8_SSCALED,         R8G8B8_SSCALED},
    550       {PIPE_FORMAT_R8G8B8A8_SSCALED,       R8G8B8A8_SSCALED},
    551 
    552       {PIPE_FORMAT_R8_UINT,                R8_UINT},
    553       {PIPE_FORMAT_R8G8_UINT,              R8G8_UINT},
    554       {PIPE_FORMAT_R8G8B8_UINT,            R8G8B8_UINT},
    555       {PIPE_FORMAT_R8G8B8A8_UINT,          R8G8B8A8_UINT},
    556 
    557       {PIPE_FORMAT_R8_SINT,                R8_SINT},
    558       {PIPE_FORMAT_R8G8_SINT,              R8G8_SINT},
    559       {PIPE_FORMAT_R8G8B8_SINT,            R8G8B8_SINT},
    560       {PIPE_FORMAT_R8G8B8A8_SINT,          R8G8B8A8_SINT},
    561 
    562       /* These formats are valid for vertex data, but should not be used
    563        * for render targets.
    564        */
    565 
    566       {PIPE_FORMAT_R32_FIXED,              R32_SFIXED},
    567       {PIPE_FORMAT_R32G32_FIXED,           R32G32_SFIXED},
    568       {PIPE_FORMAT_R32G32B32_FIXED,        R32G32B32_SFIXED},
    569       {PIPE_FORMAT_R32G32B32A32_FIXED,     R32G32B32A32_SFIXED},
    570 
    571       {PIPE_FORMAT_R64_FLOAT,              R64_FLOAT},
    572       {PIPE_FORMAT_R64G64_FLOAT,           R64G64_FLOAT},
    573       {PIPE_FORMAT_R64G64B64_FLOAT,        R64G64B64_FLOAT},
    574       {PIPE_FORMAT_R64G64B64A64_FLOAT,     R64G64B64A64_FLOAT},
    575 
    576       /* These formats have entries in SWR but don't have Load/StoreTile
    577        * implementations. That means these aren't renderable, and thus having
    578        * a mapping entry here is detrimental.
    579        */
    580       /*
    581 
    582       {PIPE_FORMAT_L8_UNORM,               L8_UNORM},
    583       {PIPE_FORMAT_I8_UNORM,               I8_UNORM},
    584       {PIPE_FORMAT_L8A8_UNORM,             L8A8_UNORM},
    585       {PIPE_FORMAT_L16_UNORM,              L16_UNORM},
    586       {PIPE_FORMAT_UYVY,                   YCRCB_SWAPUVY},
    587 
    588       {PIPE_FORMAT_L8_SRGB,                L8_UNORM_SRGB},
    589       {PIPE_FORMAT_L8A8_SRGB,              L8A8_UNORM_SRGB},
    590 
    591       {PIPE_FORMAT_DXT1_RGBA,              BC1_UNORM},
    592       {PIPE_FORMAT_DXT3_RGBA,              BC2_UNORM},
    593       {PIPE_FORMAT_DXT5_RGBA,              BC3_UNORM},
    594 
    595       {PIPE_FORMAT_DXT1_SRGBA,             BC1_UNORM_SRGB},
    596       {PIPE_FORMAT_DXT3_SRGBA,             BC2_UNORM_SRGB},
    597       {PIPE_FORMAT_DXT5_SRGBA,             BC3_UNORM_SRGB},
    598 
    599       {PIPE_FORMAT_RGTC1_UNORM,            BC4_UNORM},
    600       {PIPE_FORMAT_RGTC1_SNORM,            BC4_SNORM},
    601       {PIPE_FORMAT_RGTC2_UNORM,            BC5_UNORM},
    602       {PIPE_FORMAT_RGTC2_SNORM,            BC5_SNORM},
    603 
    604       {PIPE_FORMAT_L16A16_UNORM,           L16A16_UNORM},
    605       {PIPE_FORMAT_I16_UNORM,              I16_UNORM},
    606       {PIPE_FORMAT_L16_FLOAT,              L16_FLOAT},
    607       {PIPE_FORMAT_L16A16_FLOAT,           L16A16_FLOAT},
    608       {PIPE_FORMAT_I16_FLOAT,              I16_FLOAT},
    609       {PIPE_FORMAT_L32_FLOAT,              L32_FLOAT},
    610       {PIPE_FORMAT_L32A32_FLOAT,           L32A32_FLOAT},
    611       {PIPE_FORMAT_I32_FLOAT,              I32_FLOAT},
    612 
    613       {PIPE_FORMAT_I8_UINT,                I8_UINT},
    614       {PIPE_FORMAT_L8_UINT,                L8_UINT},
    615       {PIPE_FORMAT_L8A8_UINT,              L8A8_UINT},
    616 
    617       {PIPE_FORMAT_I8_SINT,                I8_SINT},
    618       {PIPE_FORMAT_L8_SINT,                L8_SINT},
    619       {PIPE_FORMAT_L8A8_SINT,              L8A8_SINT},
    620 
    621       */
    622    };
    623 
    624    auto it = mesa2swr.find(format);
    625    if (it == mesa2swr.end())
    626       return (SWR_FORMAT)-1;
    627    else
    628       return it->second;
    629 }
    630 
    631 static boolean
    632 swr_displaytarget_layout(struct swr_screen *screen, struct swr_resource *res)
    633 {
    634    struct sw_winsys *winsys = screen->winsys;
    635    struct sw_displaytarget *dt;
    636 
    637    const unsigned width = align(res->swr.width, res->swr.halign);
    638    const unsigned height = align(res->swr.height, res->swr.valign);
    639 
    640    UINT stride;
    641    dt = winsys->displaytarget_create(winsys,
    642                                      res->base.bind,
    643                                      res->base.format,
    644                                      width, height,
    645                                      64, NULL,
    646                                      &stride);
    647 
    648    if (dt == NULL)
    649       return FALSE;
    650 
    651    void *map = winsys->displaytarget_map(winsys, dt, 0);
    652 
    653    res->display_target = dt;
    654    res->swr.xpBaseAddress = (gfxptr_t)map;
    655 
    656    /* Clear the display target surface */
    657    if (map)
    658       memset(map, 0, height * stride);
    659 
    660    winsys->displaytarget_unmap(winsys, dt);
    661 
    662    return TRUE;
    663 }
    664 
    665 static bool
    666 swr_texture_layout(struct swr_screen *screen,
    667                    struct swr_resource *res,
    668                    boolean allocate)
    669 {
    670    struct pipe_resource *pt = &res->base;
    671 
    672    pipe_format fmt = pt->format;
    673    const struct util_format_description *desc = util_format_description(fmt);
    674 
    675    res->has_depth = util_format_has_depth(desc);
    676    res->has_stencil = util_format_has_stencil(desc);
    677 
    678    if (res->has_stencil && !res->has_depth)
    679       fmt = PIPE_FORMAT_R8_UINT;
    680 
    681    /* We always use the SWR layout. For 2D and 3D textures this looks like:
    682     *
    683     * |<------- pitch ------->|
    684     * +=======================+-------
    685     * |Array 0                |   ^
    686     * |                       |   |
    687     * |        Level 0        |   |
    688     * |                       |   |
    689     * |                       | qpitch
    690     * +-----------+-----------+   |
    691     * |           | L2L2L2L2  |   |
    692     * |  Level 1  | L3L3      |   |
    693     * |           | L4        |   v
    694     * +===========+===========+-------
    695     * |Array 1                |
    696     * |                       |
    697     * |        Level 0        |
    698     * |                       |
    699     * |                       |
    700     * +-----------+-----------+
    701     * |           | L2L2L2L2  |
    702     * |  Level 1  | L3L3      |
    703     * |           | L4        |
    704     * +===========+===========+
    705     *
    706     * The overall width in bytes is known as the pitch, while the overall
    707     * height in rows is the qpitch. Array slices are laid out logically below
    708     * one another, qpitch rows apart. For 3D surfaces, the "level" values are
    709     * just invalid for the higher array numbers (since depth is also
    710     * minified). 1D and 1D array surfaces are stored effectively the same way,
    711     * except that pitch never plays into it. All the levels are logically
    712     * adjacent to each other on the X axis. The qpitch becomes the number of
    713     * elements between array slices, while the pitch is unused.
    714     *
    715     * Each level's sizes are subject to the valign and halign settings of the
    716     * surface. For compressed formats that swr is unaware of, we will use an
    717     * appropriately-sized uncompressed format, and scale the widths/heights.
    718     *
    719     * This surface is stored inside res->swr. For depth/stencil textures,
    720     * res->secondary will have an identically-laid-out but R8_UINT-formatted
    721     * stencil tree. In the Z32F_S8 case, the primary surface still has 64-bpp
    722     * texels, to simplify map/unmap logic which copies the stencil values
    723     * in/out.
    724     */
    725 
    726    res->swr.width = pt->width0;
    727    res->swr.height = pt->height0;
    728    res->swr.type = swr_convert_target_type(pt->target);
    729    res->swr.tileMode = SWR_TILE_NONE;
    730    res->swr.format = mesa_to_swr_format(fmt);
    731    res->swr.numSamples = std::max(1u, pt->nr_samples);
    732 
    733    if (pt->bind & (PIPE_BIND_RENDER_TARGET | PIPE_BIND_DEPTH_STENCIL)) {
    734       res->swr.halign = KNOB_MACROTILE_X_DIM;
    735       res->swr.valign = KNOB_MACROTILE_Y_DIM;
    736 
    737       /* If SWR_MSAA_FORCE_ENABLE is set, turn on MSAA and override requested
    738        * surface sample count. */
    739       if (screen->msaa_force_enable) {
    740          res->swr.numSamples = screen->msaa_max_count;
    741          fprintf(stderr,"swr_texture_layout: forcing sample count: %d\n",
    742                  res->swr.numSamples);
    743       }
    744    } else {
    745       res->swr.halign = 1;
    746       res->swr.valign = 1;
    747    }
    748 
    749    unsigned halign = res->swr.halign * util_format_get_blockwidth(fmt);
    750    unsigned width = align(pt->width0, halign);
    751    if (pt->target == PIPE_TEXTURE_1D || pt->target == PIPE_TEXTURE_1D_ARRAY) {
    752       for (int level = 1; level <= pt->last_level; level++)
    753          width += align(u_minify(pt->width0, level), halign);
    754       res->swr.pitch = util_format_get_blocksize(fmt);
    755       res->swr.qpitch = util_format_get_nblocksx(fmt, width);
    756    } else {
    757       // The pitch is the overall width of the texture in bytes. Most of the
    758       // time this is the pitch of level 0 since all the other levels fit
    759       // underneath it. However in some degenerate situations, the width of
    760       // level1 + level2 may be larger. In that case, we use those
    761       // widths. This can happen if, e.g. halign is 32, and the width of level
    762       // 0 is 32 or less. In that case, the aligned levels 1 and 2 will also
    763       // be 32 each, adding up to 64.
    764       unsigned valign = res->swr.valign * util_format_get_blockheight(fmt);
    765       if (pt->last_level > 1) {
    766          width = std::max<uint32_t>(
    767                width,
    768                align(u_minify(pt->width0, 1), halign) +
    769                align(u_minify(pt->width0, 2), halign));
    770       }
    771       res->swr.pitch = util_format_get_stride(fmt, width);
    772 
    773       // The qpitch is controlled by either the height of the second LOD, or
    774       // the combination of all the later LODs.
    775       unsigned height = align(pt->height0, valign);
    776       if (pt->last_level == 1) {
    777          height += align(u_minify(pt->height0, 1), valign);
    778       } else if (pt->last_level > 1) {
    779          unsigned level1 = align(u_minify(pt->height0, 1), valign);
    780          unsigned level2 = 0;
    781          for (int level = 2; level <= pt->last_level; level++) {
    782             level2 += align(u_minify(pt->height0, level), valign);
    783          }
    784          height += std::max(level1, level2);
    785       }
    786       res->swr.qpitch = util_format_get_nblocksy(fmt, height);
    787    }
    788 
    789    if (pt->target == PIPE_TEXTURE_3D)
    790       res->swr.depth = pt->depth0;
    791    else
    792       res->swr.depth = pt->array_size;
    793 
    794    // Fix up swr format if necessary so that LOD offset computation works
    795    if (res->swr.format == (SWR_FORMAT)-1) {
    796       switch (util_format_get_blocksize(fmt)) {
    797       default:
    798          unreachable("Unexpected format block size");
    799       case 1: res->swr.format = R8_UINT; break;
    800       case 2: res->swr.format = R16_UINT; break;
    801       case 4: res->swr.format = R32_UINT; break;
    802       case 8:
    803          if (util_format_is_compressed(fmt))
    804             res->swr.format = BC4_UNORM;
    805          else
    806             res->swr.format = R32G32_UINT;
    807          break;
    808       case 16:
    809          if (util_format_is_compressed(fmt))
    810             res->swr.format = BC5_UNORM;
    811          else
    812             res->swr.format = R32G32B32A32_UINT;
    813          break;
    814       }
    815    }
    816 
    817    for (int level = 0; level <= pt->last_level; level++) {
    818       res->mip_offsets[level] =
    819          ComputeSurfaceOffset<false>(0, 0, 0, 0, 0, level, &res->swr);
    820    }
    821 
    822    size_t total_size = (uint64_t)res->swr.depth * res->swr.qpitch *
    823                                  res->swr.pitch * res->swr.numSamples;
    824    if (total_size > SWR_MAX_TEXTURE_SIZE)
    825       return false;
    826 
    827    if (allocate) {
    828       res->swr.xpBaseAddress = (gfxptr_t)AlignedMalloc(total_size, 64);
    829       if (!res->swr.xpBaseAddress)
    830          return false;
    831 
    832       if (res->has_depth && res->has_stencil) {
    833          res->secondary = res->swr;
    834          res->secondary.format = R8_UINT;
    835          res->secondary.pitch = res->swr.pitch / util_format_get_blocksize(fmt);
    836 
    837          for (int level = 0; level <= pt->last_level; level++) {
    838             res->secondary_mip_offsets[level] =
    839                ComputeSurfaceOffset<false>(0, 0, 0, 0, 0, level, &res->secondary);
    840          }
    841 
    842          total_size = res->secondary.depth * res->secondary.qpitch *
    843                       res->secondary.pitch * res->secondary.numSamples;
    844 
    845          res->secondary.xpBaseAddress = (gfxptr_t) AlignedMalloc(total_size, 64);
    846          if (!res->secondary.xpBaseAddress) {
    847             AlignedFree((void *)res->swr.xpBaseAddress);
    848             return false;
    849          }
    850       }
    851    }
    852 
    853    return true;
    854 }
    855 
    856 static boolean
    857 swr_can_create_resource(struct pipe_screen *screen,
    858                         const struct pipe_resource *templat)
    859 {
    860    struct swr_resource res;
    861    memset(&res, 0, sizeof(res));
    862    res.base = *templat;
    863    return swr_texture_layout(swr_screen(screen), &res, false);
    864 }
    865 
    866 /* Helper function that conditionally creates a single-sample resolve resource
    867  * and attaches it to main multisample resource. */
    868 static boolean
    869 swr_create_resolve_resource(struct pipe_screen *_screen,
    870                             struct swr_resource *msaa_res)
    871 {
    872    struct swr_screen *screen = swr_screen(_screen);
    873 
    874    /* If resource is multisample, create a single-sample resolve resource */
    875    if (msaa_res->base.nr_samples > 1 || (screen->msaa_force_enable &&
    876             !(msaa_res->base.flags & SWR_RESOURCE_FLAG_ALT_SURFACE))) {
    877 
    878       /* Create a single-sample copy of the resource.  Copy the original
    879        * resource parameters and set flag to prevent recursion when re-calling
    880        * resource_create */
    881       struct pipe_resource alt_template = msaa_res->base;
    882       alt_template.nr_samples = 0;
    883       alt_template.flags |= SWR_RESOURCE_FLAG_ALT_SURFACE;
    884 
    885       /* Note: Display_target is a special single-sample resource, only the
    886        * display_target has been created already. */
    887       if (msaa_res->base.bind & (PIPE_BIND_DISPLAY_TARGET | PIPE_BIND_SCANOUT
    888                | PIPE_BIND_SHARED)) {
    889          /* Allocate the multisample buffers. */
    890          if (!swr_texture_layout(screen, msaa_res, true))
    891             return false;
    892 
    893          /* Alt resource will only be bound as PIPE_BIND_RENDER_TARGET
    894           * remove the DISPLAY_TARGET, SCANOUT, and SHARED bindings */
    895          alt_template.bind = PIPE_BIND_RENDER_TARGET;
    896       }
    897 
    898       /* Allocate single-sample resolve surface */
    899       struct pipe_resource *alt;
    900       alt = _screen->resource_create(_screen, &alt_template);
    901       if (!alt)
    902          return false;
    903 
    904       /* Attach it to the multisample resource */
    905       msaa_res->resolve_target = alt;
    906 
    907       /* Hang resolve surface state off the multisample surface state to so
    908        * StoreTiles knows where to resolve the surface. */
    909       msaa_res->swr.xpAuxBaseAddress = (gfxptr_t)&swr_resource(alt)->swr;
    910    }
    911 
    912    return true; /* success */
    913 }
    914 
    915 static struct pipe_resource *
    916 swr_resource_create(struct pipe_screen *_screen,
    917                     const struct pipe_resource *templat)
    918 {
    919    struct swr_screen *screen = swr_screen(_screen);
    920    struct swr_resource *res = CALLOC_STRUCT(swr_resource);
    921    if (!res)
    922       return NULL;
    923 
    924    res->base = *templat;
    925    pipe_reference_init(&res->base.reference, 1);
    926    res->base.screen = &screen->base;
    927 
    928    if (swr_resource_is_texture(&res->base)) {
    929       if (res->base.bind & (PIPE_BIND_DISPLAY_TARGET | PIPE_BIND_SCANOUT
    930                             | PIPE_BIND_SHARED)) {
    931          /* displayable surface
    932           * first call swr_texture_layout without allocating to finish
    933           * filling out the SWR_SURFACE_STATE in res */
    934          swr_texture_layout(screen, res, false);
    935          if (!swr_displaytarget_layout(screen, res))
    936             goto fail;
    937       } else {
    938          /* texture map */
    939          if (!swr_texture_layout(screen, res, true))
    940             goto fail;
    941       }
    942 
    943       /* If resource was multisample, create resolve resource and attach
    944        * it to multisample resource. */
    945       if (!swr_create_resolve_resource(_screen, res))
    946             goto fail;
    947 
    948    } else {
    949       /* other data (vertex buffer, const buffer, etc) */
    950       assert(util_format_get_blocksize(templat->format) == 1);
    951       assert(templat->height0 == 1);
    952       assert(templat->depth0 == 1);
    953       assert(templat->last_level == 0);
    954 
    955       /* Easiest to just call swr_texture_layout, as it sets up
    956        * SWR_SURFACE_STATE in res */
    957       if (!swr_texture_layout(screen, res, true))
    958          goto fail;
    959    }
    960 
    961    return &res->base;
    962 
    963 fail:
    964    FREE(res);
    965    return NULL;
    966 }
    967 
    968 static void
    969 swr_resource_destroy(struct pipe_screen *p_screen, struct pipe_resource *pt)
    970 {
    971    struct swr_screen *screen = swr_screen(p_screen);
    972    struct swr_resource *spr = swr_resource(pt);
    973 
    974    if (spr->display_target) {
    975       /* If resource is display target, winsys manages the buffer and will
    976        * free it on displaytarget_destroy. */
    977       swr_fence_finish(p_screen, NULL, screen->flush_fence, 0);
    978 
    979       struct sw_winsys *winsys = screen->winsys;
    980       winsys->displaytarget_destroy(winsys, spr->display_target);
    981 
    982       if (spr->swr.numSamples > 1) {
    983          /* Free an attached resolve resource */
    984          struct swr_resource *alt = swr_resource(spr->resolve_target);
    985          swr_fence_work_free(screen->flush_fence, (void*)(alt->swr.xpBaseAddress), true);
    986 
    987          /* Free multisample buffer */
    988          swr_fence_work_free(screen->flush_fence, (void*)(spr->swr.xpBaseAddress), true);
    989       }
    990    } else {
    991       /* For regular resources, defer deletion */
    992       swr_resource_unused(pt);
    993 
    994       if (spr->swr.numSamples > 1) {
    995          /* Free an attached resolve resource */
    996          struct swr_resource *alt = swr_resource(spr->resolve_target);
    997          swr_fence_work_free(screen->flush_fence, (void*)(alt->swr.xpBaseAddress), true);
    998       }
    999 
   1000       swr_fence_work_free(screen->flush_fence, (void*)(spr->swr.xpBaseAddress), true);
   1001       swr_fence_work_free(screen->flush_fence,
   1002                           (void*)(spr->secondary.xpBaseAddress), true);
   1003 
   1004       /* If work queue grows too large, submit a fence to force queue to
   1005        * drain.  This is mainly to decrease the amount of memory used by the
   1006        * piglit streaming-texture-leak test */
   1007       if (screen->pipe && swr_fence(screen->flush_fence)->work.count > 64)
   1008          swr_fence_submit(swr_context(screen->pipe), screen->flush_fence);
   1009    }
   1010 
   1011    FREE(spr);
   1012 }
   1013 
   1014 
   1015 static void
   1016 swr_flush_frontbuffer(struct pipe_screen *p_screen,
   1017                       struct pipe_resource *resource,
   1018                       unsigned level,
   1019                       unsigned layer,
   1020                       void *context_private,
   1021                       struct pipe_box *sub_box)
   1022 {
   1023    struct swr_screen *screen = swr_screen(p_screen);
   1024    struct sw_winsys *winsys = screen->winsys;
   1025    struct swr_resource *spr = swr_resource(resource);
   1026    struct pipe_context *pipe = screen->pipe;
   1027    struct swr_context *ctx = swr_context(pipe);
   1028 
   1029    if (pipe) {
   1030       swr_fence_finish(p_screen, NULL, screen->flush_fence, 0);
   1031       swr_resource_unused(resource);
   1032       ctx->api.pfnSwrEndFrame(ctx->swrContext);
   1033    }
   1034 
   1035    /* Multisample resolved into resolve_target at flush with store_resource */
   1036    if (pipe && spr->swr.numSamples > 1) {
   1037       struct pipe_resource *resolve_target = spr->resolve_target;
   1038 
   1039       /* Once resolved, copy into display target */
   1040       SWR_SURFACE_STATE *resolve = &swr_resource(resolve_target)->swr;
   1041 
   1042       void *map = winsys->displaytarget_map(winsys, spr->display_target,
   1043                                             PIPE_TRANSFER_WRITE);
   1044       memcpy(map, (void*)(resolve->xpBaseAddress), resolve->pitch * resolve->height);
   1045       winsys->displaytarget_unmap(winsys, spr->display_target);
   1046    }
   1047 
   1048    debug_assert(spr->display_target);
   1049    if (spr->display_target)
   1050       winsys->displaytarget_display(
   1051          winsys, spr->display_target, context_private, sub_box);
   1052 }
   1053 
   1054 
   1055 void
   1056 swr_destroy_screen_internal(struct swr_screen **screen)
   1057 {
   1058    struct pipe_screen *p_screen = &(*screen)->base;
   1059 
   1060    swr_fence_finish(p_screen, NULL, (*screen)->flush_fence, 0);
   1061    swr_fence_reference(p_screen, &(*screen)->flush_fence, NULL);
   1062 
   1063    JitDestroyContext((*screen)->hJitMgr);
   1064 
   1065    if ((*screen)->pLibrary)
   1066       util_dl_close((*screen)->pLibrary);
   1067 
   1068    FREE(*screen);
   1069    *screen = NULL;
   1070 }
   1071 
   1072 
   1073 static void
   1074 swr_destroy_screen(struct pipe_screen *p_screen)
   1075 {
   1076    struct swr_screen *screen = swr_screen(p_screen);
   1077    struct sw_winsys *winsys = screen->winsys;
   1078 
   1079    fprintf(stderr, "SWR destroy screen!\n");
   1080 
   1081    if (winsys->destroy)
   1082       winsys->destroy(winsys);
   1083 
   1084    swr_destroy_screen_internal(&screen);
   1085 }
   1086 
   1087 
   1088 static void
   1089 swr_validate_env_options(struct swr_screen *screen)
   1090 {
   1091    /* The client_copy_limit sets a maximum on the amount of user-buffer memory
   1092     * copied to scratch space on a draw.  Past this, the draw will access
   1093     * user-buffer directly and then block.  This is faster than queuing many
   1094     * large client draws. */
   1095    screen->client_copy_limit = SWR_CLIENT_COPY_LIMIT;
   1096    int client_copy_limit =
   1097       debug_get_num_option("SWR_CLIENT_COPY_LIMIT", SWR_CLIENT_COPY_LIMIT);
   1098    if (client_copy_limit > 0)
   1099       screen->client_copy_limit = client_copy_limit;
   1100 
   1101    /* XXX msaa under development, disable by default for now */
   1102    screen->msaa_max_count = 1; /* was SWR_MAX_NUM_MULTISAMPLES; */
   1103 
   1104    /* validate env override values, within range and power of 2 */
   1105    int msaa_max_count = debug_get_num_option("SWR_MSAA_MAX_COUNT", 1);
   1106    if (msaa_max_count != 1) {
   1107       if ((msaa_max_count < 1) || (msaa_max_count > SWR_MAX_NUM_MULTISAMPLES)
   1108             || !util_is_power_of_two(msaa_max_count)) {
   1109          fprintf(stderr, "SWR_MSAA_MAX_COUNT invalid: %d\n", msaa_max_count);
   1110          fprintf(stderr, "must be power of 2 between 1 and %d" \
   1111                          " (or 1 to disable msaa)\n",
   1112                SWR_MAX_NUM_MULTISAMPLES);
   1113          msaa_max_count = 1;
   1114       }
   1115 
   1116       fprintf(stderr, "SWR_MSAA_MAX_COUNT: %d\n", msaa_max_count);
   1117       if (msaa_max_count == 1)
   1118          fprintf(stderr, "(msaa disabled)\n");
   1119 
   1120       screen->msaa_max_count = msaa_max_count;
   1121    }
   1122 
   1123    screen->msaa_force_enable = debug_get_bool_option(
   1124          "SWR_MSAA_FORCE_ENABLE", false);
   1125    if (screen->msaa_force_enable)
   1126       fprintf(stderr, "SWR_MSAA_FORCE_ENABLE: true\n");
   1127 }
   1128 
   1129 
   1130 PUBLIC
   1131 struct pipe_screen *
   1132 swr_create_screen_internal(struct sw_winsys *winsys)
   1133 {
   1134    struct swr_screen *screen = CALLOC_STRUCT(swr_screen);
   1135    memset(screen, 0, sizeof(struct swr_screen));
   1136 
   1137    if (!screen)
   1138       return NULL;
   1139 
   1140    if (!lp_build_init()) {
   1141       FREE(screen);
   1142       return NULL;
   1143    }
   1144 
   1145    screen->winsys = winsys;
   1146    screen->base.get_name = swr_get_name;
   1147    screen->base.get_vendor = swr_get_vendor;
   1148    screen->base.is_format_supported = swr_is_format_supported;
   1149    screen->base.context_create = swr_create_context;
   1150    screen->base.can_create_resource = swr_can_create_resource;
   1151 
   1152    screen->base.destroy = swr_destroy_screen;
   1153    screen->base.get_param = swr_get_param;
   1154    screen->base.get_shader_param = swr_get_shader_param;
   1155    screen->base.get_paramf = swr_get_paramf;
   1156 
   1157    screen->base.resource_create = swr_resource_create;
   1158    screen->base.resource_destroy = swr_resource_destroy;
   1159 
   1160    screen->base.flush_frontbuffer = swr_flush_frontbuffer;
   1161 
   1162    // Pass in "" for architecture for run-time determination
   1163    screen->hJitMgr = JitCreateContext(KNOB_SIMD_WIDTH, "", "swr");
   1164 
   1165    swr_fence_init(&screen->base);
   1166 
   1167    swr_validate_env_options(screen);
   1168 
   1169    return &screen->base;
   1170 }
   1171 
   1172