src/gallium/drivers/softpipe/sp_screen.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2008 VMware, Inc.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28
  29 #include "util/u_memory.h"
  30 #include "util/u_format.h"
  31 #include "util/u_format_s3tc.h"
  32 #include "util/u_video.h"
  33 #include "os/os_misc.h"
  34 #include "os/os_time.h"
  35 #include "pipe/p_defines.h"
  36 #include "pipe/p_screen.h"
  37 #include "draw/draw_context.h"
  38
  39 #include "state_tracker/sw_winsys.h"
  40 #include "tgsi/tgsi_exec.h"
  41
  42 #include "sp_texture.h"
  43 #include "sp_screen.h"
  44 #include "sp_context.h"
  45 #include "sp_fence.h"
  46 #include "sp_public.h"
  47
  48 DEBUG_GET_ONCE_BOOL_OPTION(use_llvm, "SOFTPIPE_USE_LLVM", FALSE)
  49
  50 static const char *
  51 softpipe_get_vendor(struct pipe_screen *screen)
  52 {
  53    return "VMware, Inc.";
  54 }
  55
  56
  57 static const char *
  58 softpipe_get_name(struct pipe_screen *screen)
  59 {
  60    return "softpipe";
  61 }
  62
  63
  64 static int
  65 softpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
  66 {
  67    switch (param) {
  68    case PIPE_CAP_NPOT_TEXTURES:
  69    case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
  70       return 1;
  71    case PIPE_CAP_TWO_SIDED_STENCIL:
  72       return 1;
  73    case PIPE_CAP_SM3:
  74       return 1;
  75    case PIPE_CAP_ANISOTROPIC_FILTER:
  76       return 1;
  77    case PIPE_CAP_POINT_SPRITE:
  78       return 1;
  79    case PIPE_CAP_MAX_RENDER_TARGETS:
  80       return PIPE_MAX_COLOR_BUFS;
  81    case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
  82       return 1;
  83    case PIPE_CAP_OCCLUSION_QUERY:
  84       return 1;
  85    case PIPE_CAP_QUERY_TIME_ELAPSED:
  86       return 1;
  87    case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
  88       return 1;
  89    case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
  90       return 1;
  91    case PIPE_CAP_TEXTURE_SHADOW_MAP:
  92       return 1;
  93    case PIPE_CAP_TEXTURE_SWIZZLE:
  94       return 1;
  95    case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
  96       return 0;
  97    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
  98       return SP_MAX_TEXTURE_2D_LEVELS;
  99    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 100       return SP_MAX_TEXTURE_3D_LEVELS;
 101    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 102       return SP_MAX_TEXTURE_CUBE_LEVELS;
 103    case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 104       return 1;
 105    case PIPE_CAP_INDEP_BLEND_ENABLE:
 106       return 1;
 107    case PIPE_CAP_INDEP_BLEND_FUNC:
 108       return 1;
 109    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 110    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 111    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 112    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 113       return 1;
 114    case PIPE_CAP_DEPTH_CLIP_DISABLE:
 115       return 1;
 116    case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 117       return PIPE_MAX_SO_BUFFERS;
 118    case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
 119    case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
 120       return 16*4;
 121    case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
 122    case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
 123       return 1024;
 124    case PIPE_CAP_MAX_VERTEX_STREAMS:
 125       return 1;
 126    case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
 127       return 2048;
 128    case PIPE_CAP_PRIMITIVE_RESTART:
 129       return 1;
 130    case PIPE_CAP_SHADER_STENCIL_EXPORT:
 131       return 1;
 132    case PIPE_CAP_TGSI_INSTANCEID:
 133    case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
 134    case PIPE_CAP_START_INSTANCE:
 135       return 1;
 136    case PIPE_CAP_SEAMLESS_CUBE_MAP:
 137    case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
 138       return 1;
 139    case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 140       return 256; /* for GL3 */
 141    case PIPE_CAP_MIN_TEXEL_OFFSET:
 142       return -8;
 143    case PIPE_CAP_MAX_TEXEL_OFFSET:
 144       return 7;
 145    case PIPE_CAP_CONDITIONAL_RENDER:
 146       return 1;
 147    case PIPE_CAP_TEXTURE_BARRIER:
 148       return 0;
 149    case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
 150    case PIPE_CAP_VERTEX_COLOR_UNCLAMPED: /* draw module */
 151    case PIPE_CAP_VERTEX_COLOR_CLAMPED: /* draw module */
 152       return 1;
 153    case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 154       return 0;
 155    case PIPE_CAP_GLSL_FEATURE_LEVEL:
 156       return 330;
 157    case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 158       return 0;
 159    case PIPE_CAP_COMPUTE:
 160       return 0;
 161    case PIPE_CAP_USER_VERTEX_BUFFERS:
 162    case PIPE_CAP_USER_INDEX_BUFFERS:
 163    case PIPE_CAP_USER_CONSTANT_BUFFERS:
 164    case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
 165    case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
 166       return 1;
 167    case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
 168       return 16;
 169    case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
 170    case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
 171    case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
 172    case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
 173    case PIPE_CAP_TEXTURE_MULTISAMPLE:
 174       return 0;
 175    case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 176       return 64;
 177    case PIPE_CAP_QUERY_TIMESTAMP:
 178    case PIPE_CAP_CUBE_MAP_ARRAY:
 179       return 1;
 180    case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
 181       return 1;
 182    case PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE:
 183       return 65536;
 184    case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
 185       return 0;
 186    case PIPE_CAP_TGSI_TEXCOORD:
 187    case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 188       return 0;
 189    case PIPE_CAP_MAX_VIEWPORTS:
 190       return 1;
 191    case PIPE_CAP_ENDIANNESS:
 192       return PIPE_ENDIAN_NATIVE;
 193    case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
 194    case PIPE_CAP_TEXTURE_GATHER_SM5:
 195    case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
 196    case PIPE_CAP_TEXTURE_QUERY_LOD:
 197    case PIPE_CAP_SAMPLE_SHADING:
 198    case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
 199       return 0;
 200    case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
 201       return 1;
 202    case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
 203    case PIPE_CAP_SAMPLER_VIEW_TARGET:
 204       return 0;
 205    case PIPE_CAP_FAKE_SW_MSAA:
 206       return 1;
 207    case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
 208    case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
 209       return 0;
 210    case PIPE_CAP_DRAW_INDIRECT:
 211       return 1;
 212
 213    case PIPE_CAP_VENDOR_ID:
 214       return 0xFFFFFFFF;
 215    case PIPE_CAP_DEVICE_ID:
 216       return 0xFFFFFFFF;
 217    case PIPE_CAP_ACCELERATED:
 218       return 0;
 219    case PIPE_CAP_VIDEO_MEMORY: {
 220       /* XXX: Do we want to return the full amount fo system memory ? */
 221       uint64_t system_memory;
 222
 223       if (!os_get_total_physical_memory(&system_memory))
 224          return 0;
 225
 226       return (int)(system_memory >> 20);
 227    }
 228    case PIPE_CAP_UMA:
 229       return 0;
 230    case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
 231       return 1;
 232    case PIPE_CAP_CLIP_HALFZ:
 233       return 1;
 234    case PIPE_CAP_VERTEXID_NOBASE:
 235       return 0;
 236    case PIPE_CAP_POLYGON_OFFSET_CLAMP:
 237       return 0;
 238    }
 239    /* should only get here on unhandled cases */
 240    debug_printf("Unexpected PIPE_CAP %d query\n", param);
 241    return 0;
 242 }
 243
 244 static int
 245 softpipe_get_shader_param(struct pipe_screen *screen, unsigned shader, enum pipe_shader_cap param)
 246 {
 247    struct softpipe_screen *sp_screen = softpipe_screen(screen);
 248    switch(shader)
 249    {
 250    case PIPE_SHADER_FRAGMENT:
 251       return tgsi_exec_get_shader_param(param);
 252    case PIPE_SHADER_VERTEX:
 253    case PIPE_SHADER_GEOMETRY:
 254       if (sp_screen->use_llvm)
 255          return draw_get_shader_param(shader, param);
 256       else
 257          return draw_get_shader_param_no_llvm(shader, param);
 258    default:
 259       return 0;
 260    }
 261 }
 262
 263 static float
 264 softpipe_get_paramf(struct pipe_screen *screen, enum pipe_capf param)
 265 {
 266    switch (param) {
 267    case PIPE_CAPF_MAX_LINE_WIDTH:
 268       /* fall-through */
 269    case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 270       return 255.0; /* arbitrary */
 271    case PIPE_CAPF_MAX_POINT_WIDTH:
 272       /* fall-through */
 273    case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 274       return 255.0; /* arbitrary */
 275    case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 276       return 16.0;
 277    case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 278       return 16.0; /* arbitrary */
 279    case PIPE_CAPF_GUARD_BAND_LEFT:
 280    case PIPE_CAPF_GUARD_BAND_TOP:
 281    case PIPE_CAPF_GUARD_BAND_RIGHT:
 282    case PIPE_CAPF_GUARD_BAND_BOTTOM:
 283       return 0.0;
 284    }
 285    /* should only get here on unhandled cases */
 286    debug_printf("Unexpected PIPE_CAPF %d query\n", param);
 287    return 0.0;
 288 }
 289
 290 /**
 291  * Query format support for creating a texture, drawing surface, etc.
 292  * \param format  the format to test
 293  * \param type  one of PIPE_TEXTURE, PIPE_SURFACE
 294  */
 295 static boolean
 296 softpipe_is_format_supported( struct pipe_screen *screen,
 297                               enum pipe_format format,
 298                               enum pipe_texture_target target,
 299                               unsigned sample_count,
 300                               unsigned bind)
 301 {
 302    struct sw_winsys *winsys = softpipe_screen(screen)->winsys;
 303    const struct util_format_description *format_desc;
 304
 305    assert(target == PIPE_BUFFER ||
 306           target == PIPE_TEXTURE_1D ||
 307           target == PIPE_TEXTURE_1D_ARRAY ||
 308           target == PIPE_TEXTURE_2D ||
 309           target == PIPE_TEXTURE_2D_ARRAY ||
 310           target == PIPE_TEXTURE_RECT ||
 311           target == PIPE_TEXTURE_3D ||
 312           target == PIPE_TEXTURE_CUBE ||
 313           target == PIPE_TEXTURE_CUBE_ARRAY);
 314
 315    format_desc = util_format_description(format);
 316    if (!format_desc)
 317       return FALSE;
 318
 319    if (sample_count > 1)
 320       return FALSE;
 321
 322    if (bind & (PIPE_BIND_DISPLAY_TARGET |
 323                PIPE_BIND_SCANOUT |
 324                PIPE_BIND_SHARED)) {
 325       if(!winsys->is_displaytarget_format_supported(winsys, bind, format))
 326          return FALSE;
 327    }
 328
 329    if (bind & PIPE_BIND_RENDER_TARGET) {
 330       if (format_desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS)
 331          return FALSE;
 332
 333       /*
 334        * Although possible, it is unnatural to render into compressed or YUV
 335        * surfaces. So disable these here to avoid going into weird paths
 336        * inside the state trackers.
 337        */
 338       if (format_desc->block.width != 1 ||
 339           format_desc->block.height != 1)
 340          return FALSE;
 341    }
 342
 343    if (bind & PIPE_BIND_DEPTH_STENCIL) {
 344       if (format_desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS)
 345          return FALSE;
 346    }
 347
 348    if (format_desc->layout == UTIL_FORMAT_LAYOUT_BPTC) {
 349       /* Software decoding is not hooked up. */
 350       return FALSE;
 351    }
 352
 353    /*
 354     * All other operations (sampling, transfer, etc).
 355     */
 356
 357    if (format_desc->layout == UTIL_FORMAT_LAYOUT_S3TC) {
 358       return util_format_s3tc_enabled;
 359    }
 360
 361    /*
 362     * Everything else should be supported by u_format.
 363     */
 364    return TRUE;
 365 }
 366
 367
 368 static void
 369 softpipe_destroy_screen( struct pipe_screen *screen )
 370 {
 371    struct softpipe_screen *sp_screen = softpipe_screen(screen);
 372    struct sw_winsys *winsys = sp_screen->winsys;
 373
 374    if(winsys->destroy)
 375       winsys->destroy(winsys);
 376
 377    FREE(screen);
 378 }
 379
 380
 381 /* This is often overriden by the co-state tracker.
 382  */
 383 static void
 384 softpipe_flush_frontbuffer(struct pipe_screen *_screen,
 385                            struct pipe_resource *resource,
 386                            unsigned level, unsigned layer,
 387                            void *context_private,
 388                            struct pipe_box *sub_box)
 389 {
 390    struct softpipe_screen *screen = softpipe_screen(_screen);
 391    struct sw_winsys *winsys = screen->winsys;
 392    struct softpipe_resource *texture = softpipe_resource(resource);
 393
 394    assert(texture->dt);
 395    if (texture->dt)
 396       winsys->displaytarget_display(winsys, texture->dt, context_private, sub_box);
 397 }
 398
 399 static uint64_t
 400 softpipe_get_timestamp(struct pipe_screen *_screen)
 401 {
 402    return os_time_get_nano();
 403 }
 404
 405 /**
 406  * Create a new pipe_screen object
 407  * Note: we're not presently subclassing pipe_screen (no softpipe_screen).
 408  */
 409 struct pipe_screen *
 410 softpipe_create_screen(struct sw_winsys *winsys)
 411 {
 412    struct softpipe_screen *screen = CALLOC_STRUCT(softpipe_screen);
 413
 414    if (!screen)
 415       return NULL;
 416
 417    screen->winsys = winsys;
 418
 419    screen->base.destroy = softpipe_destroy_screen;
 420
 421    screen->base.get_name = softpipe_get_name;
 422    screen->base.get_vendor = softpipe_get_vendor;
 423    screen->base.get_param = softpipe_get_param;
 424    screen->base.get_shader_param = softpipe_get_shader_param;
 425    screen->base.get_paramf = softpipe_get_paramf;
 426    screen->base.get_timestamp = softpipe_get_timestamp;
 427    screen->base.is_format_supported = softpipe_is_format_supported;
 428    screen->base.context_create = softpipe_create_context;
 429    screen->base.flush_frontbuffer = softpipe_flush_frontbuffer;
 430
 431    screen->use_llvm = debug_get_option_use_llvm();
 432
 433    util_format_s3tc_init();
 434
 435    softpipe_init_screen_texture_funcs(&screen->base);
 436    softpipe_init_screen_fence_funcs(&screen->base);
 437
 438    return &screen->base;
 439 }