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_PRIMITIVE_RESTART:
 127       return 1;
 128    case PIPE_CAP_SHADER_STENCIL_EXPORT:
 129       return 1;
 130    case PIPE_CAP_TGSI_INSTANCEID:
 131    case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
 132    case PIPE_CAP_START_INSTANCE:
 133       return 1;
 134    case PIPE_CAP_SEAMLESS_CUBE_MAP:
 135    case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
 136       return 1;
 137    case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 138       return 256; /* for GL3 */
 139    case PIPE_CAP_MIN_TEXEL_OFFSET:
 140       return -8;
 141    case PIPE_CAP_MAX_TEXEL_OFFSET:
 142       return 7;
 143    case PIPE_CAP_CONDITIONAL_RENDER:
 144       return 1;
 145    case PIPE_CAP_TEXTURE_BARRIER:
 146       return 0;
 147    case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
 148    case PIPE_CAP_VERTEX_COLOR_UNCLAMPED: /* draw module */
 149    case PIPE_CAP_VERTEX_COLOR_CLAMPED: /* draw module */
 150       return 1;
 151    case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 152       return 0;
 153    case PIPE_CAP_GLSL_FEATURE_LEVEL:
 154       return 330;
 155    case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 156       return 0;
 157    case PIPE_CAP_COMPUTE:
 158       return 0;
 159    case PIPE_CAP_USER_VERTEX_BUFFERS:
 160    case PIPE_CAP_USER_INDEX_BUFFERS:
 161    case PIPE_CAP_USER_CONSTANT_BUFFERS:
 162    case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
 163    case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
 164       return 1;
 165    case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
 166       return 16;
 167    case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
 168    case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
 169    case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
 170    case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
 171    case PIPE_CAP_TEXTURE_MULTISAMPLE:
 172       return 0;
 173    case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 174       return 64;
 175    case PIPE_CAP_QUERY_TIMESTAMP:
 176    case PIPE_CAP_CUBE_MAP_ARRAY:
 177       return 1;
 178    case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
 179       return 1;
 180    case PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE:
 181       return 65536;
 182    case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
 183       return 0;
 184    case PIPE_CAP_TGSI_TEXCOORD:
 185    case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 186       return 0;
 187    case PIPE_CAP_MAX_VIEWPORTS:
 188       return 1;
 189    case PIPE_CAP_ENDIANNESS:
 190       return PIPE_ENDIAN_NATIVE;
 191    case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
 192    case PIPE_CAP_TEXTURE_GATHER_SM5:
 193    case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
 194    case PIPE_CAP_TEXTURE_QUERY_LOD:
 195    case PIPE_CAP_SAMPLE_SHADING:
 196    case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
 197    case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
 198    case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
 199       return 0;
 200    case PIPE_CAP_FAKE_SW_MSAA:
 201       return 1;
 202    case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
 203    case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
 204       return 0;
 205    case PIPE_CAP_DRAW_INDIRECT:
 206       return 1;
 207
 208    case PIPE_CAP_VENDOR_ID:
 209       return 0xFFFFFFFF;
 210    case PIPE_CAP_DEVICE_ID:
 211       return 0xFFFFFFFF;
 212    case PIPE_CAP_ACCELERATED:
 213       return 0;
 214    case PIPE_CAP_VIDEO_MEMORY: {
 215       /* XXX: Do we want to return the full amount fo system memory ? */
 216       uint64_t system_memory;
 217
 218       if (!os_get_total_physical_memory(&system_memory))
 219          return 0;
 220
 221       return (int)(system_memory >> 20);
 222    }
 223    case PIPE_CAP_UMA:
 224       return 0;
 225    case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
 226       return 1;
 227    }
 228    /* should only get here on unhandled cases */
 229    debug_printf("Unexpected PIPE_CAP %d query\n", param);
 230    return 0;
 231 }
 232
 233 static int
 234 softpipe_get_shader_param(struct pipe_screen *screen, unsigned shader, enum pipe_shader_cap param)
 235 {
 236    struct softpipe_screen *sp_screen = softpipe_screen(screen);
 237    switch(shader)
 238    {
 239    case PIPE_SHADER_FRAGMENT:
 240       return tgsi_exec_get_shader_param(param);
 241    case PIPE_SHADER_VERTEX:
 242    case PIPE_SHADER_GEOMETRY:
 243       switch (param) {
 244       case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 245       case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 246          if (sp_screen->use_llvm)
 247             /* Softpipe doesn't yet know how to tell draw/llvm about textures */
 248             return 0;
 249          else
 250             return PIPE_MAX_SAMPLERS;
 251       default:
 252          if (sp_screen->use_llvm)
 253             return draw_get_shader_param(shader, param);
 254          else
 255             return draw_get_shader_param_no_llvm(shader, param);
 256       }
 257    default:
 258       return 0;
 259    }
 260 }
 261
 262 static float
 263 softpipe_get_paramf(struct pipe_screen *screen, enum pipe_capf param)
 264 {
 265    switch (param) {
 266    case PIPE_CAPF_MAX_LINE_WIDTH:
 267       /* fall-through */
 268    case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 269       return 255.0; /* arbitrary */
 270    case PIPE_CAPF_MAX_POINT_WIDTH:
 271       /* fall-through */
 272    case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 273       return 255.0; /* arbitrary */
 274    case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 275       return 16.0;
 276    case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 277       return 16.0; /* arbitrary */
 278    case PIPE_CAPF_GUARD_BAND_LEFT:
 279    case PIPE_CAPF_GUARD_BAND_TOP:
 280    case PIPE_CAPF_GUARD_BAND_RIGHT:
 281    case PIPE_CAPF_GUARD_BAND_BOTTOM:
 282       return 0.0;
 283    }
 284    /* should only get here on unhandled cases */
 285    debug_printf("Unexpected PIPE_CAPF %d query\n", param);
 286    return 0.0;
 287 }
 288
 289 /**
 290  * Query format support for creating a texture, drawing surface, etc.
 291  * \param format  the format to test
 292  * \param type  one of PIPE_TEXTURE, PIPE_SURFACE
 293  */
 294 static boolean
 295 softpipe_is_format_supported( struct pipe_screen *screen,
 296                               enum pipe_format format,
 297                               enum pipe_texture_target target,
 298                               unsigned sample_count,
 299                               unsigned bind)
 300 {
 301    struct sw_winsys *winsys = softpipe_screen(screen)->winsys;
 302    const struct util_format_description *format_desc;
 303
 304    assert(target == PIPE_BUFFER ||
 305           target == PIPE_TEXTURE_1D ||
 306           target == PIPE_TEXTURE_1D_ARRAY ||
 307           target == PIPE_TEXTURE_2D ||
 308           target == PIPE_TEXTURE_2D_ARRAY ||
 309           target == PIPE_TEXTURE_RECT ||
 310           target == PIPE_TEXTURE_3D ||
 311           target == PIPE_TEXTURE_CUBE ||
 312           target == PIPE_TEXTURE_CUBE_ARRAY);
 313
 314    format_desc = util_format_description(format);
 315    if (!format_desc)
 316       return FALSE;
 317
 318    if (sample_count > 1)
 319       return FALSE;
 320
 321    if (bind & (PIPE_BIND_DISPLAY_TARGET |
 322                PIPE_BIND_SCANOUT |
 323                PIPE_BIND_SHARED)) {
 324       if(!winsys->is_displaytarget_format_supported(winsys, bind, format))
 325          return FALSE;
 326    }
 327
 328    if (bind & PIPE_BIND_RENDER_TARGET) {
 329       if (format_desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS)
 330          return FALSE;
 331
 332       /*
 333        * Although possible, it is unnatural to render into compressed or YUV
 334        * surfaces. So disable these here to avoid going into weird paths
 335        * inside the state trackers.
 336        */
 337       if (format_desc->block.width != 1 ||
 338           format_desc->block.height != 1)
 339          return FALSE;
 340    }
 341
 342    if (bind & PIPE_BIND_DEPTH_STENCIL) {
 343       if (format_desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS)
 344          return FALSE;
 345    }
 346
 347    if (format_desc->layout == UTIL_FORMAT_LAYOUT_BPTC) {
 348       /* Software decoding is not hooked up. */
 349       return FALSE;
 350    }
 351
 352    /*
 353     * All other operations (sampling, transfer, etc).
 354     */
 355
 356    if (format_desc->layout == UTIL_FORMAT_LAYOUT_S3TC) {
 357       return util_format_s3tc_enabled;
 358    }
 359
 360    /*
 361     * Everything else should be supported by u_format.
 362     */
 363    return TRUE;
 364 }
 365
 366
 367 static void
 368 softpipe_destroy_screen( struct pipe_screen *screen )
 369 {
 370    struct softpipe_screen *sp_screen = softpipe_screen(screen);
 371    struct sw_winsys *winsys = sp_screen->winsys;
 372
 373    if(winsys->destroy)
 374       winsys->destroy(winsys);
 375
 376    FREE(screen);
 377 }
 378
 379
 380 /* This is often overriden by the co-state tracker.
 381  */
 382 static void
 383 softpipe_flush_frontbuffer(struct pipe_screen *_screen,
 384                            struct pipe_resource *resource,
 385                            unsigned level, unsigned layer,
 386                            void *context_private,
 387                            struct pipe_box *sub_box)
 388 {
 389    struct softpipe_screen *screen = softpipe_screen(_screen);
 390    struct sw_winsys *winsys = screen->winsys;
 391    struct softpipe_resource *texture = softpipe_resource(resource);
 392
 393    assert(texture->dt);
 394    if (texture->dt)
 395       winsys->displaytarget_display(winsys, texture->dt, context_private, sub_box);
 396 }
 397
 398 static uint64_t
 399 softpipe_get_timestamp(struct pipe_screen *_screen)
 400 {
 401    return os_time_get_nano();
 402 }
 403
 404 /**
 405  * Create a new pipe_screen object
 406  * Note: we're not presently subclassing pipe_screen (no softpipe_screen).
 407  */
 408 struct pipe_screen *
 409 softpipe_create_screen(struct sw_winsys *winsys)
 410 {
 411    struct softpipe_screen *screen = CALLOC_STRUCT(softpipe_screen);
 412
 413    if (!screen)
 414       return NULL;
 415
 416    screen->winsys = winsys;
 417
 418    screen->base.destroy = softpipe_destroy_screen;
 419
 420    screen->base.get_name = softpipe_get_name;
 421    screen->base.get_vendor = softpipe_get_vendor;
 422    screen->base.get_param = softpipe_get_param;
 423    screen->base.get_shader_param = softpipe_get_shader_param;
 424    screen->base.get_paramf = softpipe_get_paramf;
 425    screen->base.get_timestamp = softpipe_get_timestamp;
 426    screen->base.is_format_supported = softpipe_is_format_supported;
 427    screen->base.context_create = softpipe_create_context;
 428    screen->base.flush_frontbuffer = softpipe_flush_frontbuffer;
 429
 430    screen->use_llvm = debug_get_option_use_llvm();
 431
 432    util_format_s3tc_init();
 433
 434    softpipe_init_screen_texture_funcs(&screen->base);
 435    softpipe_init_screen_fence_funcs(&screen->base);
 436
 437    return &screen->base;
 438 }