src/gallium/drivers/svga/svga_screen.c

   1 /**********************************************************
   2  * Copyright 2008-2009 VMware, Inc.  All rights reserved.
   3  *
   4  * Permission is hereby granted, free of charge, to any person
   5  * obtaining a copy of this software and associated documentation
   6  * files (the "Software"), to deal in the Software without
   7  * restriction, including without limitation the rights to use, copy,
   8  * modify, merge, publish, distribute, sublicense, and/or sell copies
   9  * of the Software, and to permit persons to whom the Software is
  10  * furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be
  13  * included in all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  19  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  20  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  21  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22  * SOFTWARE.
  23  *
  24  **********************************************************/
  25
  26 #include "util/u_format.h"
  27 #include "util/u_memory.h"
  28 #include "util/u_inlines.h"
  29 #include "util/u_string.h"
  30 #include "util/u_math.h"
  31
  32 #include "svga_winsys.h"
  33 #include "svga_public.h"
  34 #include "svga_context.h"
  35 #include "svga_format.h"
  36 #include "svga_screen.h"
  37 #include "svga_tgsi.h"
  38 #include "svga_resource_texture.h"
  39 #include "svga_resource.h"
  40 #include "svga_debug.h"
  41
  42 #include "svga3d_shaderdefs.h"
  43 #include "VGPU10ShaderTokens.h"
  44
  45 /* NOTE: this constant may get moved into a svga3d*.h header file */
  46 #define SVGA3D_DX_MAX_RESOURCE_SIZE (128 * 1024 * 1024)
  47
  48 #ifdef DEBUG
  49 int SVGA_DEBUG = 0;
  50
  51 static const struct debug_named_value svga_debug_flags[] = {
  52    { "dma",         DEBUG_DMA, NULL },
  53    { "tgsi",        DEBUG_TGSI, NULL },
  54    { "pipe",        DEBUG_PIPE, NULL },
  55    { "state",       DEBUG_STATE, NULL },
  56    { "screen",      DEBUG_SCREEN, NULL },
  57    { "tex",         DEBUG_TEX, NULL },
  58    { "swtnl",       DEBUG_SWTNL, NULL },
  59    { "const",       DEBUG_CONSTS, NULL },
  60    { "viewport",    DEBUG_VIEWPORT, NULL },
  61    { "views",       DEBUG_VIEWS, NULL },
  62    { "perf",        DEBUG_PERF, NULL },
  63    { "flush",       DEBUG_FLUSH, NULL },
  64    { "sync",        DEBUG_SYNC, NULL },
  65    { "cache",       DEBUG_CACHE, NULL },
  66    { "streamout",   DEBUG_STREAMOUT, NULL },
  67    { "query",       DEBUG_QUERY, NULL },
  68    DEBUG_NAMED_VALUE_END
  69 };
  70 #endif
  71
  72 static const char *
  73 svga_get_vendor( struct pipe_screen *pscreen )
  74 {
  75    return "VMware, Inc.";
  76 }
  77
  78
  79 static const char *
  80 svga_get_name( struct pipe_screen *pscreen )
  81 {
  82    const char *build = "", *llvm = "", *mutex = "";
  83    static char name[100];
  84 #ifdef DEBUG
  85    /* Only return internal details in the DEBUG version:
  86     */
  87    build = "build: DEBUG;";
  88    mutex = "mutex: " PIPE_ATOMIC ";";
  89 #elif defined(VMX86_STATS)
  90    build = "build: OPT;";
  91 #else
  92    build = "build: RELEASE;";
  93 #endif
  94 #ifdef HAVE_LLVM
  95    llvm = "LLVM;";
  96 #endif
  97
  98    util_snprintf(name, sizeof(name), "SVGA3D; %s %s %s", build, mutex, llvm);
  99    return name;
 100 }
 101
 102
 103 /** Helper for querying float-valued device cap */
 104 static float
 105 get_float_cap(struct svga_winsys_screen *sws, unsigned cap, float defaultVal)
 106 {
 107    SVGA3dDevCapResult result;
 108    if (sws->get_cap(sws, cap, &result))
 109       return result.f;
 110    else
 111       return defaultVal;
 112 }
 113
 114
 115 /** Helper for querying uint-valued device cap */
 116 static unsigned
 117 get_uint_cap(struct svga_winsys_screen *sws, unsigned cap, unsigned defaultVal)
 118 {
 119    SVGA3dDevCapResult result;
 120    if (sws->get_cap(sws, cap, &result))
 121       return result.u;
 122    else
 123       return defaultVal;
 124 }
 125
 126
 127 /** Helper for querying boolean-valued device cap */
 128 static boolean
 129 get_bool_cap(struct svga_winsys_screen *sws, unsigned cap, boolean defaultVal)
 130 {
 131    SVGA3dDevCapResult result;
 132    if (sws->get_cap(sws, cap, &result))
 133       return result.b;
 134    else
 135       return defaultVal;
 136 }
 137
 138
 139 static float
 140 svga_get_paramf(struct pipe_screen *screen, enum pipe_capf param)
 141 {
 142    struct svga_screen *svgascreen = svga_screen(screen);
 143    struct svga_winsys_screen *sws = svgascreen->sws;
 144
 145    switch (param) {
 146    case PIPE_CAPF_MAX_LINE_WIDTH:
 147       return svgascreen->maxLineWidth;
 148    case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 149       return svgascreen->maxLineWidthAA;
 150
 151    case PIPE_CAPF_MAX_POINT_WIDTH:
 152       /* fall-through */
 153    case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 154       return svgascreen->maxPointSize;
 155
 156    case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 157       return (float) get_uint_cap(sws, SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY, 4);
 158
 159    case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 160       return 15.0;
 161
 162    case PIPE_CAPF_GUARD_BAND_LEFT:
 163    case PIPE_CAPF_GUARD_BAND_TOP:
 164    case PIPE_CAPF_GUARD_BAND_RIGHT:
 165    case PIPE_CAPF_GUARD_BAND_BOTTOM:
 166       return 0.0;
 167    }
 168
 169    debug_printf("Unexpected PIPE_CAPF_ query %u\n", param);
 170    return 0;
 171 }
 172
 173
 174 static int
 175 svga_get_param(struct pipe_screen *screen, enum pipe_cap param)
 176 {
 177    struct svga_screen *svgascreen = svga_screen(screen);
 178    struct svga_winsys_screen *sws = svgascreen->sws;
 179    SVGA3dDevCapResult result;
 180
 181    switch (param) {
 182    case PIPE_CAP_NPOT_TEXTURES:
 183    case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
 184    case PIPE_CAP_MIXED_COLOR_DEPTH_BITS:
 185       return 1;
 186    case PIPE_CAP_TWO_SIDED_STENCIL:
 187       return 1;
 188    case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
 189       /*
 190        * "In virtually every OpenGL implementation and hardware,
 191        * GL_MAX_DUAL_SOURCE_DRAW_BUFFERS is 1"
 192        * http://www.opengl.org/wiki/Blending
 193        */
 194       return sws->have_vgpu10 ? 1 : 0;
 195    case PIPE_CAP_ANISOTROPIC_FILTER:
 196       return 1;
 197    case PIPE_CAP_POINT_SPRITE:
 198       return 1;
 199    case PIPE_CAP_TGSI_TEXCOORD:
 200       return 0;
 201    case PIPE_CAP_MAX_RENDER_TARGETS:
 202       return svgascreen->max_color_buffers;
 203    case PIPE_CAP_OCCLUSION_QUERY:
 204       return 1;
 205    case PIPE_CAP_QUERY_TIME_ELAPSED:
 206       return 0;
 207    case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
 208       return sws->have_vgpu10;
 209    case PIPE_CAP_TEXTURE_SHADOW_MAP:
 210       return 1;
 211    case PIPE_CAP_TEXTURE_SWIZZLE:
 212       return 1;
 213    case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
 214       return 0;
 215    case PIPE_CAP_USER_VERTEX_BUFFERS:
 216       return 0;
 217    case PIPE_CAP_USER_CONSTANT_BUFFERS:
 218       return 1;
 219    case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
 220       return 256;
 221
 222    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 223       {
 224          unsigned levels = SVGA_MAX_TEXTURE_LEVELS;
 225          if (sws->get_cap(sws, SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH, &result))
 226             levels = MIN2(util_logbase2(result.u) + 1, levels);
 227          else
 228             levels = 12 /* 2048x2048 */;
 229          if (sws->get_cap(sws, SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT, &result))
 230             levels = MIN2(util_logbase2(result.u) + 1, levels);
 231          else
 232             levels = 12 /* 2048x2048 */;
 233          return levels;
 234       }
 235
 236    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 237       if (!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_VOLUME_EXTENT, &result))
 238          return 8;  /* max 128x128x128 */
 239       return MIN2(util_logbase2(result.u) + 1, SVGA_MAX_TEXTURE_LEVELS);
 240
 241    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 242       /*
 243        * No mechanism to query the host, and at least limited to 2048x2048 on
 244        * certain hardware.
 245        */
 246       return MIN2(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS),
 247                   12 /* 2048x2048 */);
 248
 249    case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 250       return sws->have_vgpu10 ? SVGA3D_MAX_SURFACE_ARRAYSIZE : 0;
 251
 252    case PIPE_CAP_BLEND_EQUATION_SEPARATE: /* req. for GL 1.5 */
 253       return 1;
 254
 255    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 256       return 1;
 257    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 258       return sws->have_vgpu10;
 259    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 260       return 0;
 261    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 262       return !sws->have_vgpu10;
 263
 264    case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
 265       return 1; /* The color outputs of vertex shaders are not clamped */
 266    case PIPE_CAP_VERTEX_COLOR_CLAMPED:
 267       return 0; /* The driver can't clamp vertex colors */
 268    case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
 269       return 0; /* The driver can't clamp fragment colors */
 270
 271    case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 272       return 1; /* expected for GL_ARB_framebuffer_object */
 273
 274    case PIPE_CAP_GLSL_FEATURE_LEVEL:
 275       return sws->have_vgpu10 ? 330 : 120;
 276
 277    case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 278       return 0;
 279
 280    case PIPE_CAP_SM3:
 281       return 1;
 282
 283    case PIPE_CAP_DEPTH_CLIP_DISABLE:
 284    case PIPE_CAP_INDEP_BLEND_ENABLE:
 285    case PIPE_CAP_CONDITIONAL_RENDER:
 286    case PIPE_CAP_QUERY_TIMESTAMP:
 287    case PIPE_CAP_TGSI_INSTANCEID:
 288    case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
 289    case PIPE_CAP_SEAMLESS_CUBE_MAP:
 290    case PIPE_CAP_FAKE_SW_MSAA:
 291       return sws->have_vgpu10;
 292
 293    case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 294       return sws->have_vgpu10 ? SVGA3D_DX_MAX_SOTARGETS : 0;
 295    case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
 296       return sws->have_vgpu10 ? 4 : 0;
 297    case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
 298       return sws->have_vgpu10 ? SVGA3D_MAX_STREAMOUT_DECLS : 0;
 299    case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
 300    case PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS:
 301       return 0;
 302    case PIPE_CAP_TEXTURE_MULTISAMPLE:
 303       return svgascreen->ms_samples ? 1 : 0;
 304
 305    case PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE:
 306       return SVGA3D_DX_MAX_RESOURCE_SIZE;
 307
 308    case PIPE_CAP_MIN_TEXEL_OFFSET:
 309       return sws->have_vgpu10 ? VGPU10_MIN_TEXEL_FETCH_OFFSET : 0;
 310    case PIPE_CAP_MAX_TEXEL_OFFSET:
 311       return sws->have_vgpu10 ? VGPU10_MAX_TEXEL_FETCH_OFFSET : 0;
 312
 313    case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
 314    case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
 315       return 0;
 316
 317    case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
 318       return sws->have_vgpu10 ? 256 : 0;
 319    case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
 320       return sws->have_vgpu10 ? 1024 : 0;
 321
 322    case PIPE_CAP_PRIMITIVE_RESTART:
 323       return 1; /* may be a sw fallback, depending on restart index */
 324
 325    case PIPE_CAP_GENERATE_MIPMAP:
 326       return sws->have_generate_mipmap_cmd;
 327
 328    /* Unsupported features */
 329    case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 330    case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
 331    case PIPE_CAP_SHADER_STENCIL_EXPORT:
 332    case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
 333    case PIPE_CAP_INDEP_BLEND_FUNC:
 334    case PIPE_CAP_TEXTURE_BARRIER:
 335    case PIPE_CAP_MAX_VERTEX_STREAMS:
 336    case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
 337    case PIPE_CAP_COMPUTE:
 338    case PIPE_CAP_START_INSTANCE:
 339    case PIPE_CAP_CUBE_MAP_ARRAY:
 340    case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
 341    case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
 342    case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
 343    case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
 344    case PIPE_CAP_TEXTURE_GATHER_SM5:
 345    case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
 346    case PIPE_CAP_TEXTURE_QUERY_LOD:
 347    case PIPE_CAP_SAMPLE_SHADING:
 348    case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
 349    case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
 350    case PIPE_CAP_DRAW_INDIRECT:
 351    case PIPE_CAP_MULTI_DRAW_INDIRECT:
 352    case PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS:
 353    case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
 354    case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
 355    case PIPE_CAP_SAMPLER_VIEW_TARGET:
 356    case PIPE_CAP_CLIP_HALFZ:
 357    case PIPE_CAP_VERTEXID_NOBASE:
 358    case PIPE_CAP_POLYGON_OFFSET_CLAMP:
 359    case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
 360    case PIPE_CAP_TGSI_PACK_HALF_FLOAT:
 361    case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
 362    case PIPE_CAP_INVALIDATE_BUFFER:
 363    case PIPE_CAP_STRING_MARKER:
 364    case PIPE_CAP_SURFACE_REINTERPRET_BLOCKS:
 365    case PIPE_CAP_QUERY_MEMORY_INFO:
 366    case PIPE_CAP_PCI_GROUP:
 367    case PIPE_CAP_PCI_BUS:
 368    case PIPE_CAP_PCI_DEVICE:
 369    case PIPE_CAP_PCI_FUNCTION:
 370    case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
 371    case PIPE_CAP_NATIVE_FENCE_FD:
 372       return 0;
 373    case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 374       return 64;
 375    case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
 376    case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
 377    case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
 378       return 1;  /* need 4-byte alignment for all offsets and strides */
 379    case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
 380       return 2048;
 381    case PIPE_CAP_MAX_VIEWPORTS:
 382       return 1;
 383    case PIPE_CAP_ENDIANNESS:
 384       return PIPE_ENDIAN_LITTLE;
 385
 386    case PIPE_CAP_VENDOR_ID:
 387       return 0x15ad; /* VMware Inc. */
 388    case PIPE_CAP_DEVICE_ID:
 389       return 0x0405; /* assume SVGA II */
 390    case PIPE_CAP_ACCELERATED:
 391       return 0; /* XXX: */
 392    case PIPE_CAP_VIDEO_MEMORY:
 393       /* XXX: Query the host ? */
 394       return 1;
 395    case PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS:
 396       return sws->have_vgpu10;
 397    case PIPE_CAP_CLEAR_TEXTURE:
 398       return sws->have_vgpu10;
 399    case PIPE_CAP_UMA:
 400    case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
 401    case PIPE_CAP_DEVICE_RESET_STATUS_QUERY:
 402    case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:
 403    case PIPE_CAP_TEXTURE_FLOAT_LINEAR:
 404    case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
 405    case PIPE_CAP_DEPTH_BOUNDS_TEST:
 406    case PIPE_CAP_TGSI_TXQS:
 407    case PIPE_CAP_FORCE_PERSAMPLE_INTERP:
 408    case PIPE_CAP_SHAREABLE_SHADERS:
 409    case PIPE_CAP_DRAW_PARAMETERS:
 410    case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
 411    case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
 412    case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
 413    case PIPE_CAP_QUERY_BUFFER_OBJECT:
 414    case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
 415    case PIPE_CAP_CULL_DISTANCE:
 416    case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
 417    case PIPE_CAP_TGSI_VOTE:
 418    case PIPE_CAP_MAX_WINDOW_RECTANGLES:
 419    case PIPE_CAP_POLYGON_OFFSET_UNITS_UNSCALED:
 420    case PIPE_CAP_VIEWPORT_SUBPIXEL_BITS:
 421    case PIPE_CAP_TGSI_ARRAY_COMPONENTS:
 422    case PIPE_CAP_TGSI_CAN_READ_OUTPUTS:
 423    case PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY:
 424    case PIPE_CAP_TGSI_FS_FBFETCH:
 425    case PIPE_CAP_TGSI_MUL_ZERO_WINS:
 426    case PIPE_CAP_DOUBLES:
 427    case PIPE_CAP_INT64:
 428    case PIPE_CAP_INT64_DIVMOD:
 429    case PIPE_CAP_TGSI_TEX_TXF_LZ:
 430    case PIPE_CAP_TGSI_CLOCK:
 431       return 0;
 432    }
 433
 434    debug_printf("Unexpected PIPE_CAP_ query %u\n", param);
 435    return 0;
 436 }
 437
 438
 439 static int
 440 vgpu9_get_shader_param(struct pipe_screen *screen,
 441                        enum pipe_shader_type shader,
 442                        enum pipe_shader_cap param)
 443 {
 444    struct svga_screen *svgascreen = svga_screen(screen);
 445    struct svga_winsys_screen *sws = svgascreen->sws;
 446    unsigned val;
 447
 448    assert(!sws->have_vgpu10);
 449
 450    switch (shader)
 451    {
 452    case PIPE_SHADER_FRAGMENT:
 453       switch (param)
 454       {
 455       case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 456       case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 457          return get_uint_cap(sws,
 458                              SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_INSTRUCTIONS,
 459                              512);
 460       case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 461       case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 462          return 512;
 463       case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 464          return SVGA3D_MAX_NESTING_LEVEL;
 465       case PIPE_SHADER_CAP_MAX_INPUTS:
 466          return 10;
 467       case PIPE_SHADER_CAP_MAX_OUTPUTS:
 468          return svgascreen->max_color_buffers;
 469       case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 470          return 224 * sizeof(float[4]);
 471       case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 472          return 1;
 473       case PIPE_SHADER_CAP_MAX_TEMPS:
 474          val = get_uint_cap(sws, SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS, 32);
 475          return MIN2(val, SVGA3D_TEMPREG_MAX);
 476       case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 477          /*
 478           * Although PS 3.0 has some addressing abilities it can only represent
 479           * loops that can be statically determined and unrolled. Given we can
 480           * only handle a subset of the cases that the state tracker already
 481           * does it is better to defer loop unrolling to the state tracker.
 482           */
 483          return 0;
 484       case PIPE_SHADER_CAP_MAX_PREDS:
 485          return 1;
 486       case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 487          return 0;
 488       case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 489          return 0;
 490       case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 491       case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 492       case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 493          return 0;
 494       case PIPE_SHADER_CAP_SUBROUTINES:
 495          return 0;
 496       case PIPE_SHADER_CAP_INTEGERS:
 497          return 0;
 498       case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 499       case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 500          return 16;
 501       case PIPE_SHADER_CAP_PREFERRED_IR:
 502          return PIPE_SHADER_IR_TGSI;
 503       case PIPE_SHADER_CAP_SUPPORTED_IRS:
 504          return 0;
 505       case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 506       case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 507       case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 508       case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 509       case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 510       case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 511       case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
 512          return 0;
 513       case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 514          return 32;
 515       }
 516       /* If we get here, we failed to handle a cap above */
 517       debug_printf("Unexpected fragment shader query %u\n", param);
 518       return 0;
 519    case PIPE_SHADER_VERTEX:
 520       switch (param)
 521       {
 522       case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 523       case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 524          return get_uint_cap(sws, SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS,
 525                              512);
 526       case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 527       case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 528          /* XXX: until we have vertex texture support */
 529          return 0;
 530       case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 531          return SVGA3D_MAX_NESTING_LEVEL;
 532       case PIPE_SHADER_CAP_MAX_INPUTS:
 533          return 16;
 534       case PIPE_SHADER_CAP_MAX_OUTPUTS:
 535          return 10;
 536       case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 537          return 256 * sizeof(float[4]);
 538       case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 539          return 1;
 540       case PIPE_SHADER_CAP_MAX_TEMPS:
 541          val = get_uint_cap(sws, SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS, 32);
 542          return MIN2(val, SVGA3D_TEMPREG_MAX);
 543       case PIPE_SHADER_CAP_MAX_PREDS:
 544          return 1;
 545       case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 546          return 0;
 547       case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 548          return 0;
 549       case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 550       case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 551          return 1;
 552       case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 553          return 0;
 554       case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 555          return 1;
 556       case PIPE_SHADER_CAP_SUBROUTINES:
 557          return 0;
 558       case PIPE_SHADER_CAP_INTEGERS:
 559          return 0;
 560       case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 561       case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 562          return 0;
 563       case PIPE_SHADER_CAP_PREFERRED_IR:
 564          return PIPE_SHADER_IR_TGSI;
 565       case PIPE_SHADER_CAP_SUPPORTED_IRS:
 566          return 0;
 567       case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 568       case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 569       case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 570       case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 571       case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 572       case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 573       case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
 574          return 0;
 575       case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 576          return 32;
 577       }
 578       /* If we get here, we failed to handle a cap above */
 579       debug_printf("Unexpected vertex shader query %u\n", param);
 580       return 0;
 581    case PIPE_SHADER_GEOMETRY:
 582    case PIPE_SHADER_COMPUTE:
 583    case PIPE_SHADER_TESS_CTRL:
 584    case PIPE_SHADER_TESS_EVAL:
 585       /* no support for geometry, tess or compute shaders at this time */
 586       return 0;
 587    default:
 588       debug_printf("Unexpected shader type (%u) query\n", shader);
 589       return 0;
 590    }
 591    return 0;
 592 }
 593
 594
 595 static int
 596 vgpu10_get_shader_param(struct pipe_screen *screen,
 597                         enum pipe_shader_type shader,
 598                         enum pipe_shader_cap param)
 599 {
 600    struct svga_screen *svgascreen = svga_screen(screen);
 601    struct svga_winsys_screen *sws = svgascreen->sws;
 602
 603    assert(sws->have_vgpu10);
 604    (void) sws;  /* silence unused var warnings in non-debug builds */
 605
 606    /* Only VS, GS, FS supported */
 607    if (shader != PIPE_SHADER_VERTEX &&
 608        shader != PIPE_SHADER_GEOMETRY &&
 609        shader != PIPE_SHADER_FRAGMENT) {
 610       return 0;
 611    }
 612
 613    /* NOTE: we do not query the device for any caps/limits at this time */
 614
 615    /* Generally the same limits for vertex, geometry and fragment shaders */
 616    switch (param) {
 617    case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 618    case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 619    case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 620    case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 621       return 64 * 1024;
 622    case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 623       return 64;
 624    case PIPE_SHADER_CAP_MAX_INPUTS:
 625       if (shader == PIPE_SHADER_FRAGMENT)
 626          return VGPU10_MAX_FS_INPUTS;
 627       else if (shader == PIPE_SHADER_GEOMETRY)
 628          return VGPU10_MAX_GS_INPUTS;
 629       else
 630          return VGPU10_MAX_VS_INPUTS;
 631    case PIPE_SHADER_CAP_MAX_OUTPUTS:
 632       if (shader == PIPE_SHADER_FRAGMENT)
 633          return VGPU10_MAX_FS_OUTPUTS;
 634       else if (shader == PIPE_SHADER_GEOMETRY)
 635          return VGPU10_MAX_GS_OUTPUTS;
 636       else
 637          return VGPU10_MAX_VS_OUTPUTS;
 638    case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 639       return VGPU10_MAX_CONSTANT_BUFFER_ELEMENT_COUNT * sizeof(float[4]);
 640    case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 641       return svgascreen->max_const_buffers;
 642    case PIPE_SHADER_CAP_MAX_TEMPS:
 643       return VGPU10_MAX_TEMPS;
 644    case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 645    case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 646    case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 647    case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 648       return TRUE; /* XXX verify */
 649    case PIPE_SHADER_CAP_MAX_PREDS:
 650       return 0;
 651    case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 652    case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 653    case PIPE_SHADER_CAP_SUBROUTINES:
 654    case PIPE_SHADER_CAP_INTEGERS:
 655       return TRUE;
 656    case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 657    case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 658       return SVGA3D_DX_MAX_SAMPLERS;
 659    case PIPE_SHADER_CAP_PREFERRED_IR:
 660       return PIPE_SHADER_IR_TGSI;
 661    case PIPE_SHADER_CAP_SUPPORTED_IRS:
 662          return 0;
 663    case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 664    case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 665    case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 666    case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 667    case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 668    case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 669    case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
 670       return 0;
 671    case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 672       return 32;
 673    default:
 674       debug_printf("Unexpected vgpu10 shader query %u\n", param);
 675       return 0;
 676    }
 677    return 0;
 678 }
 679
 680
 681 static int
 682 svga_get_shader_param(struct pipe_screen *screen, enum pipe_shader_type shader,
 683                       enum pipe_shader_cap param)
 684 {
 685    struct svga_screen *svgascreen = svga_screen(screen);
 686    struct svga_winsys_screen *sws = svgascreen->sws;
 687    if (sws->have_vgpu10) {
 688       return vgpu10_get_shader_param(screen, shader, param);
 689    }
 690    else {
 691       return vgpu9_get_shader_param(screen, shader, param);
 692    }
 693 }
 694
 695
 696 /**
 697  * Implement pipe_screen::is_format_supported().
 698  * \param bindings  bitmask of PIPE_BIND_x flags
 699  */
 700 static boolean
 701 svga_is_format_supported( struct pipe_screen *screen,
 702                           enum pipe_format format,
 703                           enum pipe_texture_target target,
 704                           unsigned sample_count,
 705                           unsigned bindings)
 706 {
 707    struct svga_screen *ss = svga_screen(screen);
 708    SVGA3dSurfaceFormat svga_format;
 709    SVGA3dSurfaceFormatCaps caps;
 710    SVGA3dSurfaceFormatCaps mask;
 711
 712    assert(bindings);
 713
 714    if (sample_count > 1) {
 715       /* In ms_samples, if bit N is set it means that we support
 716        * multisample with N+1 samples per pixel.
 717        */
 718       if ((ss->ms_samples & (1 << (sample_count - 1))) == 0) {
 719          return FALSE;
 720       }
 721    }
 722
 723    svga_format = svga_translate_format(ss, format, bindings);
 724    if (svga_format == SVGA3D_FORMAT_INVALID) {
 725       return FALSE;
 726    }
 727
 728    /* we don't support sRGB rendering into display targets */
 729    if (util_format_is_srgb(format) && (bindings & PIPE_BIND_DISPLAY_TARGET)) {
 730       return FALSE;
 731    }
 732
 733    /*
 734     * For VGPU10 vertex formats, skip querying host capabilities
 735     */
 736
 737    if (ss->sws->have_vgpu10 && (bindings & PIPE_BIND_VERTEX_BUFFER)) {
 738       SVGA3dSurfaceFormat svga_format;
 739       unsigned flags;
 740       svga_translate_vertex_format_vgpu10(format, &svga_format, &flags);
 741       return svga_format != SVGA3D_FORMAT_INVALID;
 742    }
 743
 744    /*
 745     * Override host capabilities, so that we end up with the same
 746     * visuals for all virtual hardware implementations.
 747     */
 748
 749    if (bindings & PIPE_BIND_DISPLAY_TARGET) {
 750       switch (svga_format) {
 751       case SVGA3D_A8R8G8B8:
 752       case SVGA3D_X8R8G8B8:
 753       case SVGA3D_R5G6B5:
 754          break;
 755
 756       /* VGPU10 formats */
 757       case SVGA3D_B8G8R8A8_UNORM:
 758       case SVGA3D_B8G8R8X8_UNORM:
 759       case SVGA3D_B5G6R5_UNORM:
 760          break;
 761
 762       /* Often unsupported/problematic. This means we end up with the same
 763        * visuals for all virtual hardware implementations.
 764        */
 765       case SVGA3D_A4R4G4B4:
 766       case SVGA3D_A1R5G5B5:
 767          return FALSE;
 768
 769       default:
 770          return FALSE;
 771       }
 772    }
 773
 774    /*
 775     * Query the host capabilities.
 776     */
 777
 778    svga_get_format_cap(ss, svga_format, &caps);
 779
 780    if (bindings & PIPE_BIND_RENDER_TARGET) {
 781       /* Check that the color surface is blendable, unless it's an
 782        * integer format.
 783        */
 784       if (!svga_format_is_integer(svga_format) &&
 785           (caps.value & SVGA3DFORMAT_OP_NOALPHABLEND)) {
 786          return FALSE;
 787       }
 788    }
 789
 790    mask.value = 0;
 791    if (bindings & PIPE_BIND_RENDER_TARGET) {
 792       mask.value |= SVGA3DFORMAT_OP_OFFSCREEN_RENDERTARGET;
 793    }
 794    if (bindings & PIPE_BIND_DEPTH_STENCIL) {
 795       mask.value |= SVGA3DFORMAT_OP_ZSTENCIL;
 796    }
 797    if (bindings & PIPE_BIND_SAMPLER_VIEW) {
 798       mask.value |= SVGA3DFORMAT_OP_TEXTURE;
 799    }
 800
 801    if (target == PIPE_TEXTURE_CUBE) {
 802       mask.value |= SVGA3DFORMAT_OP_CUBETEXTURE;
 803    }
 804    else if (target == PIPE_TEXTURE_3D) {
 805       mask.value |= SVGA3DFORMAT_OP_VOLUMETEXTURE;
 806    }
 807
 808    return (caps.value & mask.value) == mask.value;
 809 }
 810
 811
 812 static void
 813 svga_fence_reference(struct pipe_screen *screen,
 814                      struct pipe_fence_handle **ptr,
 815                      struct pipe_fence_handle *fence)
 816 {
 817    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 818    sws->fence_reference(sws, ptr, fence);
 819 }
 820
 821
 822 static boolean
 823 svga_fence_finish(struct pipe_screen *screen,
 824                   struct pipe_context *ctx,
 825                   struct pipe_fence_handle *fence,
 826                   uint64_t timeout)
 827 {
 828    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 829    boolean retVal;
 830
 831    SVGA_STATS_TIME_PUSH(sws, SVGA_STATS_TIME_FENCEFINISH);
 832
 833    if (!timeout) {
 834       retVal = sws->fence_signalled(sws, fence, 0) == 0;
 835    }
 836    else {
 837       SVGA_DBG(DEBUG_DMA|DEBUG_PERF, "%s fence_ptr %p\n",
 838                __FUNCTION__, fence);
 839
 840       retVal = sws->fence_finish(sws, fence, 0) == 0;
 841    }
 842
 843    SVGA_STATS_TIME_POP(sws);
 844
 845    return retVal;
 846 }
 847
 848
 849 static int
 850 svga_get_driver_query_info(struct pipe_screen *screen,
 851                            unsigned index,
 852                            struct pipe_driver_query_info *info)
 853 {
 854 #define QUERY(NAME, ENUM, UNITS) \
 855    {NAME, ENUM, {0}, UNITS, PIPE_DRIVER_QUERY_RESULT_TYPE_AVERAGE, 0, 0x0}
 856
 857    static const struct pipe_driver_query_info queries[] = {
 858       /* per-frame counters */
 859       QUERY("num-draw-calls", SVGA_QUERY_NUM_DRAW_CALLS,
 860             PIPE_DRIVER_QUERY_TYPE_UINT64),
 861       QUERY("num-fallbacks", SVGA_QUERY_NUM_FALLBACKS,
 862             PIPE_DRIVER_QUERY_TYPE_UINT64),
 863       QUERY("num-flushes", SVGA_QUERY_NUM_FLUSHES,
 864             PIPE_DRIVER_QUERY_TYPE_UINT64),
 865       QUERY("num-validations", SVGA_QUERY_NUM_VALIDATIONS,
 866             PIPE_DRIVER_QUERY_TYPE_UINT64),
 867       QUERY("map-buffer-time", SVGA_QUERY_MAP_BUFFER_TIME,
 868             PIPE_DRIVER_QUERY_TYPE_MICROSECONDS),
 869       QUERY("num-buffers-mapped", SVGA_QUERY_NUM_BUFFERS_MAPPED,
 870             PIPE_DRIVER_QUERY_TYPE_UINT64),
 871       QUERY("num-textures-mapped", SVGA_QUERY_NUM_TEXTURES_MAPPED,
 872             PIPE_DRIVER_QUERY_TYPE_UINT64),
 873       QUERY("num-bytes-uploaded", SVGA_QUERY_NUM_BYTES_UPLOADED,
 874             PIPE_DRIVER_QUERY_TYPE_BYTES),
 875       QUERY("command-buffer-size", SVGA_QUERY_COMMAND_BUFFER_SIZE,
 876             PIPE_DRIVER_QUERY_TYPE_BYTES),
 877       QUERY("flush-time", SVGA_QUERY_FLUSH_TIME,
 878             PIPE_DRIVER_QUERY_TYPE_MICROSECONDS),
 879       QUERY("surface-write-flushes", SVGA_QUERY_SURFACE_WRITE_FLUSHES,
 880             PIPE_DRIVER_QUERY_TYPE_UINT64),
 881       QUERY("num-readbacks", SVGA_QUERY_NUM_READBACKS,
 882             PIPE_DRIVER_QUERY_TYPE_UINT64),
 883       QUERY("num-resource-updates", SVGA_QUERY_NUM_RESOURCE_UPDATES,
 884             PIPE_DRIVER_QUERY_TYPE_UINT64),
 885       QUERY("num-buffer-uploads", SVGA_QUERY_NUM_BUFFER_UPLOADS,
 886             PIPE_DRIVER_QUERY_TYPE_UINT64),
 887       QUERY("num-const-buf-updates", SVGA_QUERY_NUM_CONST_BUF_UPDATES,
 888             PIPE_DRIVER_QUERY_TYPE_UINT64),
 889       QUERY("num-const-updates", SVGA_QUERY_NUM_CONST_UPDATES,
 890             PIPE_DRIVER_QUERY_TYPE_UINT64),
 891
 892       /* running total counters */
 893       QUERY("memory-used", SVGA_QUERY_MEMORY_USED,
 894             PIPE_DRIVER_QUERY_TYPE_BYTES),
 895       QUERY("num-shaders", SVGA_QUERY_NUM_SHADERS,
 896             PIPE_DRIVER_QUERY_TYPE_UINT64),
 897       QUERY("num-resources", SVGA_QUERY_NUM_RESOURCES,
 898             PIPE_DRIVER_QUERY_TYPE_UINT64),
 899       QUERY("num-state-objects", SVGA_QUERY_NUM_STATE_OBJECTS,
 900             PIPE_DRIVER_QUERY_TYPE_UINT64),
 901       QUERY("num-surface-views", SVGA_QUERY_NUM_SURFACE_VIEWS,
 902             PIPE_DRIVER_QUERY_TYPE_UINT64),
 903       QUERY("num-generate-mipmap", SVGA_QUERY_NUM_GENERATE_MIPMAP,
 904             PIPE_DRIVER_QUERY_TYPE_UINT64),
 905    };
 906 #undef QUERY
 907
 908    if (!info)
 909       return ARRAY_SIZE(queries);
 910
 911    if (index >= ARRAY_SIZE(queries))
 912       return 0;
 913
 914    *info = queries[index];
 915    return 1;
 916 }
 917
 918
 919 static void
 920 svga_destroy_screen( struct pipe_screen *screen )
 921 {
 922    struct svga_screen *svgascreen = svga_screen(screen);
 923
 924    svga_screen_cache_cleanup(svgascreen);
 925
 926    mtx_destroy(&svgascreen->swc_mutex);
 927    mtx_destroy(&svgascreen->tex_mutex);
 928
 929    svgascreen->sws->destroy(svgascreen->sws);
 930
 931    FREE(svgascreen);
 932 }
 933
 934
 935 /**
 936  * Create a new svga_screen object
 937  */
 938 struct pipe_screen *
 939 svga_screen_create(struct svga_winsys_screen *sws)
 940 {
 941    struct svga_screen *svgascreen;
 942    struct pipe_screen *screen;
 943
 944 #ifdef DEBUG
 945    SVGA_DEBUG = debug_get_flags_option("SVGA_DEBUG", svga_debug_flags, 0 );
 946 #endif
 947
 948    svgascreen = CALLOC_STRUCT(svga_screen);
 949    if (!svgascreen)
 950       goto error1;
 951
 952    svgascreen->debug.force_level_surface_view =
 953       debug_get_bool_option("SVGA_FORCE_LEVEL_SURFACE_VIEW", FALSE);
 954    svgascreen->debug.force_surface_view =
 955       debug_get_bool_option("SVGA_FORCE_SURFACE_VIEW", FALSE);
 956    svgascreen->debug.force_sampler_view =
 957       debug_get_bool_option("SVGA_FORCE_SAMPLER_VIEW", FALSE);
 958    svgascreen->debug.no_surface_view =
 959       debug_get_bool_option("SVGA_NO_SURFACE_VIEW", FALSE);
 960    svgascreen->debug.no_sampler_view =
 961       debug_get_bool_option("SVGA_NO_SAMPLER_VIEW", FALSE);
 962    svgascreen->debug.no_cache_index_buffers =
 963       debug_get_bool_option("SVGA_NO_CACHE_INDEX_BUFFERS", FALSE);
 964
 965    screen = &svgascreen->screen;
 966
 967    screen->destroy = svga_destroy_screen;
 968    screen->get_name = svga_get_name;
 969    screen->get_vendor = svga_get_vendor;
 970    screen->get_device_vendor = svga_get_vendor; // TODO actual device vendor
 971    screen->get_param = svga_get_param;
 972    screen->get_shader_param = svga_get_shader_param;
 973    screen->get_paramf = svga_get_paramf;
 974    screen->get_timestamp = NULL;
 975    screen->is_format_supported = svga_is_format_supported;
 976    screen->context_create = svga_context_create;
 977    screen->fence_reference = svga_fence_reference;
 978    screen->fence_finish = svga_fence_finish;
 979    screen->get_driver_query_info = svga_get_driver_query_info;
 980    svgascreen->sws = sws;
 981
 982    svga_init_screen_resource_functions(svgascreen);
 983
 984    if (sws->get_hw_version) {
 985       svgascreen->hw_version = sws->get_hw_version(sws);
 986    } else {
 987       svgascreen->hw_version = SVGA3D_HWVERSION_WS65_B1;
 988    }
 989
 990    /*
 991     * The D16, D24X8, and D24S8 formats always do an implicit shadow compare
 992     * when sampled from, where as the DF16, DF24, and D24S8_INT do not.  So
 993     * we prefer the later when available.
 994     *
 995     * This mimics hardware vendors extensions for D3D depth sampling. See also
 996     * http://aras-p.info/texts/D3D9GPUHacks.html
 997     */
 998
 999    {
1000       boolean has_df16, has_df24, has_d24s8_int;
1001       SVGA3dSurfaceFormatCaps caps;
1002       SVGA3dSurfaceFormatCaps mask;
1003       mask.value = 0;
1004       mask.zStencil = 1;
1005       mask.texture = 1;
1006
1007       svgascreen->depth.z16 = SVGA3D_Z_D16;
1008       svgascreen->depth.x8z24 = SVGA3D_Z_D24X8;
1009       svgascreen->depth.s8z24 = SVGA3D_Z_D24S8;
1010
1011       svga_get_format_cap(svgascreen, SVGA3D_Z_DF16, &caps);
1012       has_df16 = (caps.value & mask.value) == mask.value;
1013
1014       svga_get_format_cap(svgascreen, SVGA3D_Z_DF24, &caps);
1015       has_df24 = (caps.value & mask.value) == mask.value;
1016
1017       svga_get_format_cap(svgascreen, SVGA3D_Z_D24S8_INT, &caps);
1018       has_d24s8_int = (caps.value & mask.value) == mask.value;
1019
1020       /* XXX: We might want some other logic here.
1021        * Like if we only have d24s8_int we should
1022        * emulate the other formats with that.
1023        */
1024       if (has_df16) {
1025          svgascreen->depth.z16 = SVGA3D_Z_DF16;
1026       }
1027       if (has_df24) {
1028          svgascreen->depth.x8z24 = SVGA3D_Z_DF24;
1029       }
1030       if (has_d24s8_int) {
1031          svgascreen->depth.s8z24 = SVGA3D_Z_D24S8_INT;
1032       }
1033    }
1034
1035    /* Query device caps
1036     */
1037    if (sws->have_vgpu10) {
1038       svgascreen->haveProvokingVertex
1039          = get_bool_cap(sws, SVGA3D_DEVCAP_DX_PROVOKING_VERTEX, FALSE);
1040       svgascreen->haveLineSmooth = TRUE;
1041       svgascreen->maxPointSize = 80.0F;
1042       svgascreen->max_color_buffers = SVGA3D_DX_MAX_RENDER_TARGETS;
1043
1044       /* Multisample samples per pixel */
1045       if (debug_get_bool_option("SVGA_MSAA", TRUE)) {
1046          svgascreen->ms_samples =
1047             get_uint_cap(sws, SVGA3D_DEVCAP_MULTISAMPLE_MASKABLESAMPLES, 0);
1048       }
1049
1050       /* Maximum number of constant buffers */
1051       svgascreen->max_const_buffers =
1052          get_uint_cap(sws, SVGA3D_DEVCAP_DX_MAX_CONSTANT_BUFFERS, 1);
1053       assert(svgascreen->max_const_buffers <= SVGA_MAX_CONST_BUFS);
1054    }
1055    else {
1056       /* VGPU9 */
1057       unsigned vs_ver = get_uint_cap(sws, SVGA3D_DEVCAP_VERTEX_SHADER_VERSION,
1058                                      SVGA3DVSVERSION_NONE);
1059       unsigned fs_ver = get_uint_cap(sws, SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION,
1060                                      SVGA3DPSVERSION_NONE);
1061
1062       /* we require Shader model 3.0 or later */
1063       if (fs_ver < SVGA3DPSVERSION_30 || vs_ver < SVGA3DVSVERSION_30) {
1064          goto error2;
1065       }
1066
1067       svgascreen->haveProvokingVertex = FALSE;
1068
1069       svgascreen->haveLineSmooth =
1070          get_bool_cap(sws, SVGA3D_DEVCAP_LINE_AA, FALSE);
1071
1072       svgascreen->maxPointSize =
1073          get_float_cap(sws, SVGA3D_DEVCAP_MAX_POINT_SIZE, 1.0f);
1074       /* Keep this to a reasonable size to avoid failures in conform/pntaa.c */
1075       svgascreen->maxPointSize = MIN2(svgascreen->maxPointSize, 80.0f);
1076
1077       /* The SVGA3D device always supports 4 targets at this time, regardless
1078        * of what querying SVGA3D_DEVCAP_MAX_RENDER_TARGETS might return.
1079        */
1080       svgascreen->max_color_buffers = 4;
1081
1082       /* Only support one constant buffer
1083        */
1084       svgascreen->max_const_buffers = 1;
1085
1086       /* No multisampling */
1087       svgascreen->ms_samples = 0;
1088    }
1089
1090    /* common VGPU9 / VGPU10 caps */
1091    svgascreen->haveLineStipple =
1092       get_bool_cap(sws, SVGA3D_DEVCAP_LINE_STIPPLE, FALSE);
1093
1094    svgascreen->maxLineWidth =
1095       get_float_cap(sws, SVGA3D_DEVCAP_MAX_LINE_WIDTH, 1.0f);
1096
1097    svgascreen->maxLineWidthAA =
1098       get_float_cap(sws, SVGA3D_DEVCAP_MAX_AA_LINE_WIDTH, 1.0f);
1099
1100    if (0) {
1101       debug_printf("svga: haveProvokingVertex %u\n",
1102                    svgascreen->haveProvokingVertex);
1103       debug_printf("svga: haveLineStip %u  "
1104                    "haveLineSmooth %u  maxLineWidth %f\n",
1105                    svgascreen->haveLineStipple, svgascreen->haveLineSmooth,
1106                    svgascreen->maxLineWidth);
1107       debug_printf("svga: maxPointSize %g\n", svgascreen->maxPointSize);
1108       debug_printf("svga: msaa samples mask: 0x%x\n", svgascreen->ms_samples);
1109    }
1110
1111    (void) mtx_init(&svgascreen->tex_mutex, mtx_plain);
1112    (void) mtx_init(&svgascreen->swc_mutex, mtx_plain);
1113
1114    svga_screen_cache_init(svgascreen);
1115
1116    return screen;
1117 error2:
1118    FREE(svgascreen);
1119 error1:
1120    return NULL;
1121 }
1122
1123 struct svga_winsys_screen *
1124 svga_winsys_screen(struct pipe_screen *screen)
1125 {
1126    return svga_screen(screen)->sws;
1127 }
1128
1129 #ifdef DEBUG
1130 struct svga_screen *
1131 svga_screen(struct pipe_screen *screen)
1132 {
1133    assert(screen);
1134    assert(screen->destroy == svga_destroy_screen);
1135    return (struct svga_screen *)screen;
1136 }
1137 #endif