src/gallium/drivers/softpipe/sp_screen.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
   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 TUNGSTEN GRAPHICS 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_time.h"
  34 #include "pipe/p_defines.h"
  35 #include "pipe/p_screen.h"
  36 #include "draw/draw_context.h"
  37 #include "vl/vl_decoder.h"
  38 #include "vl/vl_video_buffer.h"
  39
  40 #include "state_tracker/sw_winsys.h"
  41 #include "tgsi/tgsi_exec.h"
  42
  43 #include "sp_texture.h"
  44 #include "sp_screen.h"
  45 #include "sp_context.h"
  46 #include "sp_fence.h"
  47 #include "sp_public.h"
  48
  49 DEBUG_GET_ONCE_BOOL_OPTION(use_llvm, "SOFTPIPE_USE_LLVM", FALSE)
  50
  51 static const char *
  52 softpipe_get_vendor(struct pipe_screen *screen)
  53 {
  54    return "VMware, Inc.";
  55 }
  56
  57
  58 static const char *
  59 softpipe_get_name(struct pipe_screen *screen)
  60 {
  61    return "softpipe";
  62 }
  63
  64
  65 static int
  66 softpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
  67 {
  68    switch (param) {
  69    case PIPE_CAP_MAX_COMBINED_SAMPLERS:
  70       return 2 * PIPE_MAX_SAMPLERS;  /* VS + FS */
  71    case PIPE_CAP_NPOT_TEXTURES:
  72    case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
  73       return 1;
  74    case PIPE_CAP_TWO_SIDED_STENCIL:
  75       return 1;
  76    case PIPE_CAP_SM3:
  77       return 1;
  78    case PIPE_CAP_ANISOTROPIC_FILTER:
  79       return 1;
  80    case PIPE_CAP_POINT_SPRITE:
  81       return 1;
  82    case PIPE_CAP_MAX_RENDER_TARGETS:
  83       return PIPE_MAX_COLOR_BUFS;
  84    case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
  85       return 1;
  86    case PIPE_CAP_OCCLUSION_QUERY:
  87       return 1;
  88    case PIPE_CAP_QUERY_TIME_ELAPSED:
  89       return 1;
  90    case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
  91       return 1;
  92    case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
  93       return 1;
  94    case PIPE_CAP_TEXTURE_SHADOW_MAP:
  95       return 1;
  96    case PIPE_CAP_TEXTURE_SWIZZLE:
  97       return 1;
  98    case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
  99       return 0;
 100    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 101       return SP_MAX_TEXTURE_2D_LEVELS;
 102    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 103       return SP_MAX_TEXTURE_3D_LEVELS;
 104    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 105       return SP_MAX_TEXTURE_CUBE_LEVELS;
 106    case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 107       return 1;
 108    case PIPE_CAP_INDEP_BLEND_ENABLE:
 109       return 1;
 110    case PIPE_CAP_INDEP_BLEND_FUNC:
 111       return 1;
 112    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 113    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 114    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 115    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 116       return 1;
 117    case PIPE_CAP_DEPTH_CLIP_DISABLE:
 118       return 0;
 119    case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 120       return PIPE_MAX_SO_BUFFERS;
 121    case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
 122    case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
 123       return 16*4;
 124    case PIPE_CAP_PRIMITIVE_RESTART:
 125       return 1;
 126    case PIPE_CAP_SHADER_STENCIL_EXPORT:
 127       return 1;
 128    case PIPE_CAP_TGSI_INSTANCEID:
 129    case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
 130       return 1;
 131    case PIPE_CAP_SEAMLESS_CUBE_MAP:
 132    case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
 133       return 1;
 134    case PIPE_CAP_SCALED_RESOLVE:
 135       return 0;
 136    case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 137       return 256; /* for GL3 */
 138    case PIPE_CAP_MIN_TEXEL_OFFSET:
 139       return -8;
 140    case PIPE_CAP_MAX_TEXEL_OFFSET:
 141       return 7;
 142    case PIPE_CAP_CONDITIONAL_RENDER:
 143       return 1;
 144    case PIPE_CAP_TEXTURE_BARRIER:
 145       return 0;
 146    case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
 147    case PIPE_CAP_VERTEX_COLOR_UNCLAMPED: /* draw module */
 148    case PIPE_CAP_VERTEX_COLOR_CLAMPED: /* draw module */
 149       return 1;
 150    case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 151       return 0;
 152    case PIPE_CAP_GLSL_FEATURE_LEVEL:
 153       return 140;
 154    case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 155       return 0;
 156    case PIPE_CAP_COMPUTE:
 157       return 0;
 158    case PIPE_CAP_USER_VERTEX_BUFFERS:
 159    case PIPE_CAP_USER_INDEX_BUFFERS:
 160    case PIPE_CAP_USER_CONSTANT_BUFFERS:
 161    case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
 162       return 1;
 163    case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
 164       return 16;
 165    case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
 166    case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
 167    case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
 168    case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
 169    case PIPE_CAP_START_INSTANCE:
 170    case PIPE_CAP_TEXTURE_MULTISAMPLE:
 171    case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 172       return 0;
 173    case PIPE_CAP_QUERY_TIMESTAMP:
 174    case PIPE_CAP_CUBE_MAP_ARRAY:
 175       return 1;
 176    case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
 177       return 1;
 178    case PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE:
 179       return 65536;
 180    case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
 181       return 0;
 182    case PIPE_CAP_TGSI_TEXCOORD:
 183    case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 184       return 0;
 185    case PIPE_CAP_MAX_VIEWPORTS:
 186       return 1;
 187    case PIPE_CAP_ENDIANNESS:
 188       return PIPE_ENDIAN_NATIVE;
 189    }
 190    /* should only get here on unhandled cases */
 191    debug_printf("Unexpected PIPE_CAP %d query\n", param);
 192    return 0;
 193 }
 194
 195 static int
 196 softpipe_get_shader_param(struct pipe_screen *screen, unsigned shader, enum pipe_shader_cap param)
 197 {
 198    struct softpipe_screen *sp_screen = softpipe_screen(screen);
 199    switch(shader)
 200    {
 201    case PIPE_SHADER_FRAGMENT:
 202       return tgsi_exec_get_shader_param(param);
 203    case PIPE_SHADER_VERTEX:
 204    case PIPE_SHADER_GEOMETRY:
 205       switch (param) {
 206       case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 207       case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 208          if (sp_screen->use_llvm)
 209             /* Softpipe doesn't yet know how to tell draw/llvm about textures */
 210             return 0;
 211          else
 212             return PIPE_MAX_SAMPLERS;
 213       default:
 214          if (sp_screen->use_llvm)
 215             return draw_get_shader_param(shader, param);
 216          else
 217             return draw_get_shader_param_no_llvm(shader, param);
 218       }
 219    default:
 220       return 0;
 221    }
 222 }
 223
 224 static float
 225 softpipe_get_paramf(struct pipe_screen *screen, enum pipe_capf param)
 226 {
 227    switch (param) {
 228    case PIPE_CAPF_MAX_LINE_WIDTH:
 229       /* fall-through */
 230    case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 231       return 255.0; /* arbitrary */
 232    case PIPE_CAPF_MAX_POINT_WIDTH:
 233       /* fall-through */
 234    case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 235       return 255.0; /* arbitrary */
 236    case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 237       return 16.0;
 238    case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 239       return 16.0; /* arbitrary */
 240    case PIPE_CAPF_GUARD_BAND_LEFT:
 241    case PIPE_CAPF_GUARD_BAND_TOP:
 242    case PIPE_CAPF_GUARD_BAND_RIGHT:
 243    case PIPE_CAPF_GUARD_BAND_BOTTOM:
 244       return 0.0;
 245    }
 246    /* should only get here on unhandled cases */
 247    debug_printf("Unexpected PIPE_CAPF %d query\n", param);
 248    return 0.0;
 249 }
 250
 251 static int
 252 softpipe_get_video_param(struct pipe_screen *screen,
 253                          enum pipe_video_profile profile,
 254                          enum pipe_video_entrypoint entrypoint,
 255                          enum pipe_video_cap param)
 256 {
 257    switch (param) {
 258    case PIPE_VIDEO_CAP_SUPPORTED:
 259        return vl_profile_supported(screen, profile, entrypoint);
 260    case PIPE_VIDEO_CAP_NPOT_TEXTURES:
 261       return 0;
 262    case PIPE_VIDEO_CAP_MAX_WIDTH:
 263    case PIPE_VIDEO_CAP_MAX_HEIGHT:
 264       return vl_video_buffer_max_size(screen);
 265    case PIPE_VIDEO_CAP_PREFERED_FORMAT:
 266       return PIPE_FORMAT_NV12;
 267    case PIPE_VIDEO_CAP_PREFERS_INTERLACED:
 268       return false;
 269    case PIPE_VIDEO_CAP_SUPPORTS_INTERLACED:
 270       return false;
 271    case PIPE_VIDEO_CAP_SUPPORTS_PROGRESSIVE:
 272       return true;
 273    default:
 274       return 0;
 275    }
 276 }
 277
 278 /**
 279  * Query format support for creating a texture, drawing surface, etc.
 280  * \param format  the format to test
 281  * \param type  one of PIPE_TEXTURE, PIPE_SURFACE
 282  */
 283 static boolean
 284 softpipe_is_format_supported( struct pipe_screen *screen,
 285                               enum pipe_format format,
 286                               enum pipe_texture_target target,
 287                               unsigned sample_count,
 288                               unsigned bind)
 289 {
 290    struct sw_winsys *winsys = softpipe_screen(screen)->winsys;
 291    const struct util_format_description *format_desc;
 292
 293    assert(target == PIPE_BUFFER ||
 294           target == PIPE_TEXTURE_1D ||
 295           target == PIPE_TEXTURE_1D_ARRAY ||
 296           target == PIPE_TEXTURE_2D ||
 297           target == PIPE_TEXTURE_2D_ARRAY ||
 298           target == PIPE_TEXTURE_RECT ||
 299           target == PIPE_TEXTURE_3D ||
 300           target == PIPE_TEXTURE_CUBE ||
 301           target == PIPE_TEXTURE_CUBE_ARRAY);
 302
 303    format_desc = util_format_description(format);
 304    if (!format_desc)
 305       return FALSE;
 306
 307    if (sample_count > 1)
 308       return FALSE;
 309
 310    if (bind & (PIPE_BIND_DISPLAY_TARGET |
 311                PIPE_BIND_SCANOUT |
 312                PIPE_BIND_SHARED)) {
 313       if(!winsys->is_displaytarget_format_supported(winsys, bind, format))
 314          return FALSE;
 315    }
 316
 317    if (bind & PIPE_BIND_RENDER_TARGET) {
 318       if (format_desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS)
 319          return FALSE;
 320
 321       /*
 322        * Although possible, it is unnatural to render into compressed or YUV
 323        * surfaces. So disable these here to avoid going into weird paths
 324        * inside the state trackers.
 325        */
 326       if (format_desc->block.width != 1 ||
 327           format_desc->block.height != 1)
 328          return FALSE;
 329    }
 330
 331    if (bind & PIPE_BIND_DEPTH_STENCIL) {
 332       if (format_desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS)
 333          return FALSE;
 334    }
 335
 336    /*
 337     * All other operations (sampling, transfer, etc).
 338     */
 339
 340    if (format_desc->layout == UTIL_FORMAT_LAYOUT_S3TC) {
 341       return util_format_s3tc_enabled;
 342    }
 343
 344    /*
 345     * Everything else should be supported by u_format.
 346     */
 347    return TRUE;
 348 }
 349
 350
 351 static void
 352 softpipe_destroy_screen( struct pipe_screen *screen )
 353 {
 354    struct softpipe_screen *sp_screen = softpipe_screen(screen);
 355    struct sw_winsys *winsys = sp_screen->winsys;
 356
 357    if(winsys->destroy)
 358       winsys->destroy(winsys);
 359
 360    FREE(screen);
 361 }
 362
 363
 364 /* This is often overriden by the co-state tracker.
 365  */
 366 static void
 367 softpipe_flush_frontbuffer(struct pipe_screen *_screen,
 368                            struct pipe_resource *resource,
 369                            unsigned level, unsigned layer,
 370                            void *context_private)
 371 {
 372    struct softpipe_screen *screen = softpipe_screen(_screen);
 373    struct sw_winsys *winsys = screen->winsys;
 374    struct softpipe_resource *texture = softpipe_resource(resource);
 375
 376    assert(texture->dt);
 377    if (texture->dt)
 378       winsys->displaytarget_display(winsys, texture->dt, context_private);
 379 }
 380
 381 static uint64_t
 382 softpipe_get_timestamp(struct pipe_screen *_screen)
 383 {
 384    return os_time_get_nano();
 385 }
 386
 387 /**
 388  * Create a new pipe_screen object
 389  * Note: we're not presently subclassing pipe_screen (no softpipe_screen).
 390  */
 391 struct pipe_screen *
 392 softpipe_create_screen(struct sw_winsys *winsys)
 393 {
 394    struct softpipe_screen *screen = CALLOC_STRUCT(softpipe_screen);
 395
 396    if (!screen)
 397       return NULL;
 398
 399    screen->winsys = winsys;
 400
 401    screen->base.destroy = softpipe_destroy_screen;
 402
 403    screen->base.get_name = softpipe_get_name;
 404    screen->base.get_vendor = softpipe_get_vendor;
 405    screen->base.get_param = softpipe_get_param;
 406    screen->base.get_shader_param = softpipe_get_shader_param;
 407    screen->base.get_paramf = softpipe_get_paramf;
 408    screen->base.get_video_param = softpipe_get_video_param;
 409    screen->base.get_timestamp = softpipe_get_timestamp;
 410    screen->base.is_format_supported = softpipe_is_format_supported;
 411    screen->base.is_video_format_supported = vl_video_buffer_is_format_supported;
 412    screen->base.context_create = softpipe_create_context;
 413    screen->base.flush_frontbuffer = softpipe_flush_frontbuffer;
 414
 415    screen->use_llvm = debug_get_option_use_llvm();
 416
 417    util_format_s3tc_init();
 418
 419    softpipe_init_screen_texture_funcs(&screen->base);
 420    softpipe_init_screen_fence_funcs(&screen->base);
 421
 422    return &screen->base;
 423 }