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    case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
 200    case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
 201       return 0;
 202    case PIPE_CAP_FAKE_SW_MSAA:
 203       return 1;
 204    case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
 205    case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
 206       return 0;
 207    case PIPE_CAP_DRAW_INDIRECT:
 208       return 1;
 209
 210    case PIPE_CAP_VENDOR_ID:
 211       return 0xFFFFFFFF;
 212    case PIPE_CAP_DEVICE_ID:
 213       return 0xFFFFFFFF;
 214    case PIPE_CAP_ACCELERATED:
 215       return 0;
 216    case PIPE_CAP_VIDEO_MEMORY: {
 217       /* XXX: Do we want to return the full amount fo system memory ? */
 218       uint64_t system_memory;
 219
 220       if (!os_get_total_physical_memory(&system_memory))
 221          return 0;
 222
 223       return (int)(system_memory >> 20);
 224    }
 225    case PIPE_CAP_UMA:
 226       return 0;
 227    case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
 228       return 1;
 229    }
 230    /* should only get here on unhandled cases */
 231    debug_printf("Unexpected PIPE_CAP %d query\n", param);
 232    return 0;
 233 }
 234
 235 static int
 236 softpipe_get_shader_param(struct pipe_screen *screen, unsigned shader, enum pipe_shader_cap param)
 237 {
 238    struct softpipe_screen *sp_screen = softpipe_screen(screen);
 239    switch(shader)
 240    {
 241    case PIPE_SHADER_FRAGMENT:
 242       return tgsi_exec_get_shader_param(param);
 243    case PIPE_SHADER_VERTEX:
 244    case PIPE_SHADER_GEOMETRY:
 245       if (sp_screen->use_llvm)
 246          return draw_get_shader_param(shader, param);
 247       else
 248          return draw_get_shader_param_no_llvm(shader, param);
 249    default:
 250       return 0;
 251    }
 252 }
 253
 254 static float
 255 softpipe_get_paramf(struct pipe_screen *screen, enum pipe_capf param)
 256 {
 257    switch (param) {
 258    case PIPE_CAPF_MAX_LINE_WIDTH:
 259       /* fall-through */
 260    case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 261       return 255.0; /* arbitrary */
 262    case PIPE_CAPF_MAX_POINT_WIDTH:
 263       /* fall-through */
 264    case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 265       return 255.0; /* arbitrary */
 266    case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 267       return 16.0;
 268    case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 269       return 16.0; /* arbitrary */
 270    case PIPE_CAPF_GUARD_BAND_LEFT:
 271    case PIPE_CAPF_GUARD_BAND_TOP:
 272    case PIPE_CAPF_GUARD_BAND_RIGHT:
 273    case PIPE_CAPF_GUARD_BAND_BOTTOM:
 274       return 0.0;
 275    }
 276    /* should only get here on unhandled cases */
 277    debug_printf("Unexpected PIPE_CAPF %d query\n", param);
 278    return 0.0;
 279 }
 280
 281 /**
 282  * Query format support for creating a texture, drawing surface, etc.
 283  * \param format  the format to test
 284  * \param type  one of PIPE_TEXTURE, PIPE_SURFACE
 285  */
 286 static boolean
 287 softpipe_is_format_supported( struct pipe_screen *screen,
 288                               enum pipe_format format,
 289                               enum pipe_texture_target target,
 290                               unsigned sample_count,
 291                               unsigned bind)
 292 {
 293    struct sw_winsys *winsys = softpipe_screen(screen)->winsys;
 294    const struct util_format_description *format_desc;
 295
 296    assert(target == PIPE_BUFFER ||
 297           target == PIPE_TEXTURE_1D ||
 298           target == PIPE_TEXTURE_1D_ARRAY ||
 299           target == PIPE_TEXTURE_2D ||
 300           target == PIPE_TEXTURE_2D_ARRAY ||
 301           target == PIPE_TEXTURE_RECT ||
 302           target == PIPE_TEXTURE_3D ||
 303           target == PIPE_TEXTURE_CUBE ||
 304           target == PIPE_TEXTURE_CUBE_ARRAY);
 305
 306    format_desc = util_format_description(format);
 307    if (!format_desc)
 308       return FALSE;
 309
 310    if (sample_count > 1)
 311       return FALSE;
 312
 313    if (bind & (PIPE_BIND_DISPLAY_TARGET |
 314                PIPE_BIND_SCANOUT |
 315                PIPE_BIND_SHARED)) {
 316       if(!winsys->is_displaytarget_format_supported(winsys, bind, format))
 317          return FALSE;
 318    }
 319
 320    if (bind & PIPE_BIND_RENDER_TARGET) {
 321       if (format_desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS)
 322          return FALSE;
 323
 324       /*
 325        * Although possible, it is unnatural to render into compressed or YUV
 326        * surfaces. So disable these here to avoid going into weird paths
 327        * inside the state trackers.
 328        */
 329       if (format_desc->block.width != 1 ||
 330           format_desc->block.height != 1)
 331          return FALSE;
 332    }
 333
 334    if (bind & PIPE_BIND_DEPTH_STENCIL) {
 335       if (format_desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS)
 336          return FALSE;
 337    }
 338
 339    if (format_desc->layout == UTIL_FORMAT_LAYOUT_BPTC) {
 340       /* Software decoding is not hooked up. */
 341       return FALSE;
 342    }
 343
 344    /*
 345     * All other operations (sampling, transfer, etc).
 346     */
 347
 348    if (format_desc->layout == UTIL_FORMAT_LAYOUT_S3TC) {
 349       return util_format_s3tc_enabled;
 350    }
 351
 352    /*
 353     * Everything else should be supported by u_format.
 354     */
 355    return TRUE;
 356 }
 357
 358
 359 static void
 360 softpipe_destroy_screen( struct pipe_screen *screen )
 361 {
 362    struct softpipe_screen *sp_screen = softpipe_screen(screen);
 363    struct sw_winsys *winsys = sp_screen->winsys;
 364
 365    if(winsys->destroy)
 366       winsys->destroy(winsys);
 367
 368    FREE(screen);
 369 }
 370
 371
 372 /* This is often overriden by the co-state tracker.
 373  */
 374 static void
 375 softpipe_flush_frontbuffer(struct pipe_screen *_screen,
 376                            struct pipe_resource *resource,
 377                            unsigned level, unsigned layer,
 378                            void *context_private,
 379                            struct pipe_box *sub_box)
 380 {
 381    struct softpipe_screen *screen = softpipe_screen(_screen);
 382    struct sw_winsys *winsys = screen->winsys;
 383    struct softpipe_resource *texture = softpipe_resource(resource);
 384
 385    assert(texture->dt);
 386    if (texture->dt)
 387       winsys->displaytarget_display(winsys, texture->dt, context_private, sub_box);
 388 }
 389
 390 static uint64_t
 391 softpipe_get_timestamp(struct pipe_screen *_screen)
 392 {
 393    return os_time_get_nano();
 394 }
 395
 396 /**
 397  * Create a new pipe_screen object
 398  * Note: we're not presently subclassing pipe_screen (no softpipe_screen).
 399  */
 400 struct pipe_screen *
 401 softpipe_create_screen(struct sw_winsys *winsys)
 402 {
 403    struct softpipe_screen *screen = CALLOC_STRUCT(softpipe_screen);
 404
 405    if (!screen)
 406       return NULL;
 407
 408    screen->winsys = winsys;
 409
 410    screen->base.destroy = softpipe_destroy_screen;
 411
 412    screen->base.get_name = softpipe_get_name;
 413    screen->base.get_vendor = softpipe_get_vendor;
 414    screen->base.get_param = softpipe_get_param;
 415    screen->base.get_shader_param = softpipe_get_shader_param;
 416    screen->base.get_paramf = softpipe_get_paramf;
 417    screen->base.get_timestamp = softpipe_get_timestamp;
 418    screen->base.is_format_supported = softpipe_is_format_supported;
 419    screen->base.context_create = softpipe_create_context;
 420    screen->base.flush_frontbuffer = softpipe_flush_frontbuffer;
 421
 422    screen->use_llvm = debug_get_option_use_llvm();
 423
 424    util_format_s3tc_init();
 425
 426    softpipe_init_screen_texture_funcs(&screen->base);
 427    softpipe_init_screen_fence_funcs(&screen->base);
 428
 429    return &screen->base;
 430 }