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_memory.h"
  27 #include "util/u_inlines.h"
  28 #include "util/u_string.h"
  29 #include "util/u_math.h"
  30
  31 #include "svga_winsys.h"
  32 #include "svga_context.h"
  33 #include "svga_screen.h"
  34 #include "svga_screen_texture.h"
  35 #include "svga_screen_buffer.h"
  36 #include "svga_debug.h"
  37
  38 #include "svga3d_shaderdefs.h"
  39
  40
  41 #ifdef DEBUG
  42 int SVGA_DEBUG = 0;
  43
  44 static const struct debug_named_value svga_debug_flags[] = {
  45    { "dma",      DEBUG_DMA },
  46    { "tgsi",     DEBUG_TGSI },
  47    { "pipe",     DEBUG_PIPE },
  48    { "state",    DEBUG_STATE },
  49    { "screen",   DEBUG_SCREEN },
  50    { "tex",      DEBUG_TEX },
  51    { "swtnl",    DEBUG_SWTNL },
  52    { "const",    DEBUG_CONSTS },
  53    { "viewport", DEBUG_VIEWPORT },
  54    { "views",    DEBUG_VIEWS },
  55    { "perf",     DEBUG_PERF },
  56    { "flush",    DEBUG_FLUSH },
  57    { "sync",     DEBUG_SYNC },
  58    { "cache",    DEBUG_CACHE },
  59    {NULL, 0}
  60 };
  61 #endif
  62
  63 static const char *
  64 svga_get_vendor( struct pipe_screen *pscreen )
  65 {
  66    return "VMware, Inc.";
  67 }
  68
  69
  70 static const char *
  71 svga_get_name( struct pipe_screen *pscreen )
  72 {
  73 #ifdef DEBUG
  74    /* Only return internal details in the DEBUG version:
  75     */
  76    return "SVGA3D; build: DEBUG; mutex: " PIPE_ATOMIC;
  77 #else
  78    return "SVGA3D; build: RELEASE; ";
  79 #endif
  80 }
  81
  82
  83
  84
  85 static float
  86 svga_get_paramf(struct pipe_screen *screen, int param)
  87 {
  88    struct svga_screen *svgascreen = svga_screen(screen);
  89    struct svga_winsys_screen *sws = svgascreen->sws;
  90    SVGA3dDevCapResult result;
  91
  92    switch (param) {
  93    case PIPE_CAP_MAX_LINE_WIDTH:
  94       /* fall-through */
  95    case PIPE_CAP_MAX_LINE_WIDTH_AA:
  96       return 7.0;
  97
  98    case PIPE_CAP_MAX_POINT_WIDTH:
  99       /* fall-through */
 100    case PIPE_CAP_MAX_POINT_WIDTH_AA:
 101       /* Keep this to a reasonable size to avoid failures in
 102        * conform/pntaa.c:
 103        */
 104       return SVGA_MAX_POINTSIZE;
 105
 106    case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
 107       return 4.0;
 108
 109    case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
 110       return 16.0;
 111
 112    case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
 113       return 16;
 114    case PIPE_CAP_NPOT_TEXTURES:
 115       return 1;
 116    case PIPE_CAP_TWO_SIDED_STENCIL:
 117       return 1;
 118    case PIPE_CAP_GLSL:
 119       return svgascreen->use_ps30 && svgascreen->use_vs30;
 120    case PIPE_CAP_ANISOTROPIC_FILTER:
 121       return 1;
 122    case PIPE_CAP_POINT_SPRITE:
 123       return 1;
 124    case PIPE_CAP_MAX_RENDER_TARGETS:
 125       if(!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_RENDER_TARGETS, &result))
 126          return 1;
 127       if(!result.u)
 128          return 1;
 129       return MIN2(result.u, PIPE_MAX_COLOR_BUFS);
 130    case PIPE_CAP_OCCLUSION_QUERY:
 131       return 1;
 132    case PIPE_CAP_TEXTURE_SHADOW_MAP:
 133       return 1;
 134    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 135       return SVGA_MAX_TEXTURE_LEVELS;
 136    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 137       return 8;  /* max 128x128x128 */
 138    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 139       return SVGA_MAX_TEXTURE_LEVELS;
 140
 141    case PIPE_CAP_TEXTURE_MIRROR_REPEAT: /* req. for GL 1.4 */
 142       return 1;
 143
 144    case PIPE_CAP_BLEND_EQUATION_SEPARATE: /* req. for GL 1.5 */
 145       return 1;
 146
 147    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 148    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 149       return 1;
 150    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 151    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 152       return 0;
 153
 154    default:
 155       return 0;
 156    }
 157 }
 158
 159
 160 /* This is a fairly pointless interface
 161  */
 162 static int
 163 svga_get_param(struct pipe_screen *screen, int param)
 164 {
 165    return (int) svga_get_paramf( screen, param );
 166 }
 167
 168
 169 static INLINE SVGA3dDevCapIndex
 170 svga_translate_format_cap(enum pipe_format format)
 171 {
 172    switch(format) {
 173
 174    case PIPE_FORMAT_A8R8G8B8_UNORM:
 175       return SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8;
 176    case PIPE_FORMAT_X8R8G8B8_UNORM:
 177       return SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8;
 178
 179    case PIPE_FORMAT_R5G6B5_UNORM:
 180       return SVGA3D_DEVCAP_SURFACEFMT_R5G6B5;
 181    case PIPE_FORMAT_A1R5G5B5_UNORM:
 182       return SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5;
 183    case PIPE_FORMAT_A4R4G4B4_UNORM:
 184       return SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4;
 185
 186    case PIPE_FORMAT_Z16_UNORM:
 187       return SVGA3D_DEVCAP_SURFACEFMT_Z_D16;
 188    case PIPE_FORMAT_Z24S8_UNORM:
 189       return SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8;
 190    case PIPE_FORMAT_Z24X8_UNORM:
 191       return SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8;
 192
 193    case PIPE_FORMAT_A8_UNORM:
 194       return SVGA3D_DEVCAP_SURFACEFMT_ALPHA8;
 195    case PIPE_FORMAT_L8_UNORM:
 196       return SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8;
 197
 198    case PIPE_FORMAT_DXT1_RGB:
 199    case PIPE_FORMAT_DXT1_RGBA:
 200       return SVGA3D_DEVCAP_SURFACEFMT_DXT1;
 201    case PIPE_FORMAT_DXT3_RGBA:
 202       return SVGA3D_DEVCAP_SURFACEFMT_DXT3;
 203    case PIPE_FORMAT_DXT5_RGBA:
 204       return SVGA3D_DEVCAP_SURFACEFMT_DXT5;
 205
 206    default:
 207       return SVGA3D_DEVCAP_MAX;
 208    }
 209 }
 210
 211
 212 static boolean
 213 svga_is_format_supported( struct pipe_screen *screen,
 214                           enum pipe_format format,
 215                           enum pipe_texture_target target,
 216                           unsigned tex_usage,
 217                           unsigned geom_flags )
 218 {
 219    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 220    SVGA3dDevCapIndex index;
 221    SVGA3dDevCapResult result;
 222
 223    assert(tex_usage);
 224
 225    /* Override host capabilities */
 226    if (tex_usage & PIPE_TEXTURE_USAGE_RENDER_TARGET) {
 227       switch(format) {
 228
 229       /* Often unsupported/problematic. This means we end up with the same
 230        * visuals for all virtual hardware implementations.
 231        */
 232       case PIPE_FORMAT_A4R4G4B4_UNORM:
 233       case PIPE_FORMAT_A1R5G5B5_UNORM:
 234          return FALSE;
 235
 236       /* Simulate ability to render into compressed textures */
 237       case PIPE_FORMAT_DXT1_RGB:
 238       case PIPE_FORMAT_DXT1_RGBA:
 239       case PIPE_FORMAT_DXT3_RGBA:
 240       case PIPE_FORMAT_DXT5_RGBA:
 241          return TRUE;
 242
 243       default:
 244          break;
 245       }
 246    }
 247
 248    /* Try to query the host */
 249    index = svga_translate_format_cap(format);
 250    if( index < SVGA3D_DEVCAP_MAX &&
 251        sws->get_cap(sws, index, &result) )
 252    {
 253       SVGA3dSurfaceFormatCaps mask;
 254
 255       mask.value = 0;
 256       if (tex_usage & PIPE_TEXTURE_USAGE_RENDER_TARGET)
 257          mask.offscreenRenderTarget = 1;
 258       if (tex_usage & PIPE_TEXTURE_USAGE_DEPTH_STENCIL)
 259          mask.zStencil = 1;
 260       if (tex_usage & PIPE_TEXTURE_USAGE_SAMPLER)
 261          mask.texture = 1;
 262
 263       if ((result.u & mask.value) == mask.value)
 264          return TRUE;
 265       else
 266          return FALSE;
 267    }
 268
 269    /* Use our translate functions directly rather than relying on a
 270     * duplicated list of supported formats which is prone to getting
 271     * out of sync:
 272     */
 273    if(tex_usage & (PIPE_TEXTURE_USAGE_RENDER_TARGET | PIPE_TEXTURE_USAGE_DEPTH_STENCIL))
 274       return svga_translate_format_render(format) != SVGA3D_FORMAT_INVALID;
 275    else
 276       return svga_translate_format(format) != SVGA3D_FORMAT_INVALID;
 277 }
 278
 279
 280 static void
 281 svga_fence_reference(struct pipe_screen *screen,
 282                      struct pipe_fence_handle **ptr,
 283                      struct pipe_fence_handle *fence)
 284 {
 285    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 286    sws->fence_reference(sws, ptr, fence);
 287 }
 288
 289
 290 static int
 291 svga_fence_signalled(struct pipe_screen *screen,
 292                      struct pipe_fence_handle *fence,
 293                      unsigned flag)
 294 {
 295    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 296    return sws->fence_signalled(sws, fence, flag);
 297 }
 298
 299
 300 static int
 301 svga_fence_finish(struct pipe_screen *screen,
 302                   struct pipe_fence_handle *fence,
 303                   unsigned flag)
 304 {
 305    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 306
 307    SVGA_DBG(DEBUG_DMA|DEBUG_PERF, "%s fence_ptr %p\n",
 308             __FUNCTION__, fence);
 309
 310    return sws->fence_finish(sws, fence, flag);
 311 }
 312
 313
 314 static void
 315 svga_destroy_screen( struct pipe_screen *screen )
 316 {
 317    struct svga_screen *svgascreen = svga_screen(screen);
 318
 319    svga_screen_cache_cleanup(svgascreen);
 320
 321    pipe_mutex_destroy(svgascreen->swc_mutex);
 322    pipe_mutex_destroy(svgascreen->tex_mutex);
 323
 324    svgascreen->swc->destroy(svgascreen->swc);
 325
 326    svgascreen->sws->destroy(svgascreen->sws);
 327
 328    FREE(svgascreen);
 329 }
 330
 331
 332 /**
 333  * Create a new svga_screen object
 334  */
 335 struct pipe_screen *
 336 svga_screen_create(struct svga_winsys_screen *sws)
 337 {
 338    struct svga_screen *svgascreen;
 339    struct pipe_screen *screen;
 340    SVGA3dDevCapResult result;
 341
 342 #ifdef DEBUG
 343    SVGA_DEBUG = debug_get_flags_option("SVGA_DEBUG", svga_debug_flags, 0 );
 344 #endif
 345
 346    svgascreen = CALLOC_STRUCT(svga_screen);
 347    if (!svgascreen)
 348       goto error1;
 349
 350    svgascreen->debug.force_level_surface_view =
 351       debug_get_bool_option("SVGA_FORCE_LEVEL_SURFACE_VIEW", FALSE);
 352    svgascreen->debug.force_surface_view =
 353       debug_get_bool_option("SVGA_FORCE_SURFACE_VIEW", FALSE);
 354    svgascreen->debug.force_sampler_view =
 355       debug_get_bool_option("SVGA_FORCE_SAMPLER_VIEW", FALSE);
 356    svgascreen->debug.no_surface_view =
 357       debug_get_bool_option("SVGA_NO_SURFACE_VIEW", FALSE);
 358    svgascreen->debug.no_sampler_view =
 359       debug_get_bool_option("SVGA_NO_SAMPLER_VIEW", FALSE);
 360
 361    screen = &svgascreen->screen;
 362
 363    screen->destroy = svga_destroy_screen;
 364    screen->get_name = svga_get_name;
 365    screen->get_vendor = svga_get_vendor;
 366    screen->get_param = svga_get_param;
 367    screen->get_paramf = svga_get_paramf;
 368    screen->is_format_supported = svga_is_format_supported;
 369    screen->context_create = svga_context_create;
 370    screen->fence_reference = svga_fence_reference;
 371    screen->fence_signalled = svga_fence_signalled;
 372    screen->fence_finish = svga_fence_finish;
 373    svgascreen->sws = sws;
 374
 375    svga_screen_init_texture_functions(screen);
 376    svga_screen_init_buffer_functions(screen);
 377
 378    svgascreen->use_ps30 =
 379       sws->get_cap(sws, SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION, &result) &&
 380       result.u >= SVGA3DPSVERSION_30 ? TRUE : FALSE;
 381
 382    svgascreen->use_vs30 =
 383       sws->get_cap(sws, SVGA3D_DEVCAP_VERTEX_SHADER_VERSION, &result) &&
 384       result.u >= SVGA3DVSVERSION_30 ? TRUE : FALSE;
 385
 386 #if 1
 387    /* Shader model 2.0 is unsupported at the moment. */
 388    if(!svgascreen->use_ps30 || !svgascreen->use_vs30)
 389       goto error2;
 390 #else
 391    if(debug_get_bool_option("SVGA_NO_SM30", FALSE))
 392       svgascreen->use_vs30 = svgascreen->use_ps30 = FALSE;
 393 #endif
 394
 395    svgascreen->swc = sws->context_create(sws);
 396    if(!svgascreen->swc)
 397       goto error2;
 398
 399    pipe_mutex_init(svgascreen->tex_mutex);
 400    pipe_mutex_init(svgascreen->swc_mutex);
 401
 402    svga_screen_cache_init(svgascreen);
 403
 404    return screen;
 405 error2:
 406    FREE(svgascreen);
 407 error1:
 408    return NULL;
 409 }
 410
 411 void svga_screen_flush( struct svga_screen *svgascreen,
 412                         struct pipe_fence_handle **pfence )
 413 {
 414    struct pipe_fence_handle *fence = NULL;
 415
 416    SVGA_DBG(DEBUG_PERF, "%s\n", __FUNCTION__);
 417
 418    pipe_mutex_lock(svgascreen->swc_mutex);
 419    svgascreen->swc->flush(svgascreen->swc, &fence);
 420    pipe_mutex_unlock(svgascreen->swc_mutex);
 421
 422    svga_screen_cache_flush(svgascreen, fence);
 423
 424    if(pfence)
 425       *pfence = fence;
 426    else
 427       svgascreen->sws->fence_reference(svgascreen->sws, &fence, NULL);
 428 }
 429
 430 struct svga_winsys_screen *
 431 svga_winsys_screen(struct pipe_screen *screen)
 432 {
 433    return svga_screen(screen)->sws;
 434 }
 435
 436 #ifdef DEBUG
 437 struct svga_screen *
 438 svga_screen(struct pipe_screen *screen)
 439 {
 440    assert(screen);
 441    assert(screen->destroy == svga_destroy_screen);
 442    return (struct svga_screen *)screen;
 443 }
 444 #endif