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