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 "pipe/p_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 80.0;
 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    default:
 148       return 0;
 149    }
 150 }
 151
 152
 153 /* This is a fairly pointless interface
 154  */
 155 static int
 156 svga_get_param(struct pipe_screen *screen, int param)
 157 {
 158    return (int) svga_get_paramf( screen, param );
 159 }
 160
 161
 162 static INLINE SVGA3dDevCapIndex
 163 svga_translate_format_cap(enum pipe_format format)
 164 {
 165    switch(format) {
 166
 167    case PIPE_FORMAT_A8R8G8B8_UNORM:
 168       return SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8;
 169    case PIPE_FORMAT_X8R8G8B8_UNORM:
 170       return SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8;
 171
 172    case PIPE_FORMAT_R5G6B5_UNORM:
 173       return SVGA3D_DEVCAP_SURFACEFMT_R5G6B5;
 174    case PIPE_FORMAT_A1R5G5B5_UNORM:
 175       return SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5;
 176    case PIPE_FORMAT_A4R4G4B4_UNORM:
 177       return SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4;
 178
 179    case PIPE_FORMAT_Z16_UNORM:
 180       return SVGA3D_DEVCAP_SURFACEFMT_Z_D16;
 181    case PIPE_FORMAT_Z24S8_UNORM:
 182       return SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8;
 183    case PIPE_FORMAT_Z24X8_UNORM:
 184       return SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8;
 185
 186    case PIPE_FORMAT_A8_UNORM:
 187       return SVGA3D_DEVCAP_SURFACEFMT_ALPHA8;
 188    case PIPE_FORMAT_L8_UNORM:
 189       return SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8;
 190
 191    case PIPE_FORMAT_DXT1_RGB:
 192    case PIPE_FORMAT_DXT1_RGBA:
 193       return SVGA3D_DEVCAP_SURFACEFMT_DXT1;
 194    case PIPE_FORMAT_DXT3_RGBA:
 195       return SVGA3D_DEVCAP_SURFACEFMT_DXT3;
 196    case PIPE_FORMAT_DXT5_RGBA:
 197       return SVGA3D_DEVCAP_SURFACEFMT_DXT5;
 198
 199    default:
 200       return SVGA3D_DEVCAP_MAX;
 201    }
 202 }
 203
 204
 205 static boolean
 206 svga_is_format_supported( struct pipe_screen *screen,
 207                           enum pipe_format format,
 208                           enum pipe_texture_target target,
 209                           unsigned tex_usage,
 210                           unsigned geom_flags )
 211 {
 212    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 213    SVGA3dDevCapIndex index;
 214    SVGA3dDevCapResult result;
 215
 216    assert(tex_usage);
 217
 218    /* Override host capabilities */
 219    if (tex_usage & PIPE_TEXTURE_USAGE_RENDER_TARGET) {
 220       switch(format) {
 221
 222       /* Often unsupported/problematic. This means we end up with the same
 223        * visuals for all virtual hardware implementations.
 224        */
 225       case PIPE_FORMAT_A4R4G4B4_UNORM:
 226       case PIPE_FORMAT_A1R5G5B5_UNORM:
 227          return FALSE;
 228
 229       /* Simulate ability to render into compressed textures */
 230       case PIPE_FORMAT_DXT1_RGB:
 231       case PIPE_FORMAT_DXT1_RGBA:
 232       case PIPE_FORMAT_DXT3_RGBA:
 233       case PIPE_FORMAT_DXT5_RGBA:
 234          return TRUE;
 235
 236       default:
 237          break;
 238       }
 239    }
 240
 241    /* Try to query the host */
 242    index = svga_translate_format_cap(format);
 243    if( index < SVGA3D_DEVCAP_MAX &&
 244        sws->get_cap(sws, index, &result) )
 245    {
 246       SVGA3dSurfaceFormatCaps mask;
 247
 248       mask.value = 0;
 249       if (tex_usage & PIPE_TEXTURE_USAGE_RENDER_TARGET)
 250          mask.offscreenRenderTarget = 1;
 251       if (tex_usage & PIPE_TEXTURE_USAGE_DEPTH_STENCIL)
 252          mask.zStencil = 1;
 253       if (tex_usage & PIPE_TEXTURE_USAGE_SAMPLER)
 254          mask.texture = 1;
 255
 256       if ((result.u & mask.value) == mask.value)
 257          return TRUE;
 258       else
 259          return FALSE;
 260    }
 261
 262    /* Use our translate functions directly rather than relying on a
 263     * duplicated list of supported formats which is prone to getting
 264     * out of sync:
 265     */
 266    if(tex_usage & (PIPE_TEXTURE_USAGE_RENDER_TARGET | PIPE_TEXTURE_USAGE_DEPTH_STENCIL))
 267       return svga_translate_format_render(format) != SVGA3D_FORMAT_INVALID;
 268    else
 269       return svga_translate_format(format) != SVGA3D_FORMAT_INVALID;
 270 }
 271
 272
 273 static void
 274 svga_fence_reference(struct pipe_screen *screen,
 275                      struct pipe_fence_handle **ptr,
 276                      struct pipe_fence_handle *fence)
 277 {
 278    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 279    sws->fence_reference(sws, ptr, fence);
 280 }
 281
 282
 283 static int
 284 svga_fence_signalled(struct pipe_screen *screen,
 285                      struct pipe_fence_handle *fence,
 286                      unsigned flag)
 287 {
 288    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 289    return sws->fence_signalled(sws, fence, flag);
 290 }
 291
 292
 293 static int
 294 svga_fence_finish(struct pipe_screen *screen,
 295                   struct pipe_fence_handle *fence,
 296                   unsigned flag)
 297 {
 298    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 299
 300    SVGA_DBG(DEBUG_DMA|DEBUG_PERF, "%s fence_ptr %p\n",
 301             __FUNCTION__, fence);
 302
 303    return sws->fence_finish(sws, fence, flag);
 304 }
 305
 306
 307 static void
 308 svga_destroy_screen( struct pipe_screen *screen )
 309 {
 310    struct svga_screen *svgascreen = svga_screen(screen);
 311
 312    svga_screen_cache_cleanup(svgascreen);
 313
 314    pipe_mutex_destroy(svgascreen->swc_mutex);
 315    pipe_mutex_destroy(svgascreen->tex_mutex);
 316
 317    svgascreen->swc->destroy(svgascreen->swc);
 318
 319    svgascreen->sws->destroy(svgascreen->sws);
 320
 321    FREE(svgascreen);
 322 }
 323
 324
 325 /**
 326  * Create a new svga_screen object
 327  */
 328 struct pipe_screen *
 329 svga_screen_create(struct svga_winsys_screen *sws)
 330 {
 331    struct svga_screen *svgascreen;
 332    struct pipe_screen *screen;
 333    SVGA3dDevCapResult result;
 334
 335 #ifdef DEBUG
 336    SVGA_DEBUG = debug_get_flags_option("SVGA_DEBUG", svga_debug_flags, 0 );
 337 #endif
 338
 339    svgascreen = CALLOC_STRUCT(svga_screen);
 340    if (!svgascreen)
 341       goto error1;
 342
 343    svgascreen->debug.force_level_surface_view =
 344       debug_get_bool_option("SVGA_FORCE_LEVEL_SURFACE_VIEW", FALSE);
 345    svgascreen->debug.force_surface_view =
 346       debug_get_bool_option("SVGA_FORCE_SURFACE_VIEW", FALSE);
 347    svgascreen->debug.force_sampler_view =
 348       debug_get_bool_option("SVGA_FORCE_SAMPLER_VIEW", FALSE);
 349    svgascreen->debug.no_surface_view =
 350       debug_get_bool_option("SVGA_NO_SURFACE_VIEW", FALSE);
 351    svgascreen->debug.no_sampler_view =
 352       debug_get_bool_option("SVGA_NO_SAMPLER_VIEW", FALSE);
 353
 354    screen = &svgascreen->screen;
 355
 356    screen->destroy = svga_destroy_screen;
 357    screen->get_name = svga_get_name;
 358    screen->get_vendor = svga_get_vendor;
 359    screen->get_param = svga_get_param;
 360    screen->get_paramf = svga_get_paramf;
 361    screen->is_format_supported = svga_is_format_supported;
 362    screen->fence_reference = svga_fence_reference;
 363    screen->fence_signalled = svga_fence_signalled;
 364    screen->fence_finish = svga_fence_finish;
 365    svgascreen->sws = sws;
 366
 367    svga_screen_init_texture_functions(screen);
 368    svga_screen_init_buffer_functions(screen);
 369
 370    svgascreen->use_ps30 =
 371       sws->get_cap(sws, SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION, &result) &&
 372       result.u >= SVGA3DPSVERSION_30 ? TRUE : FALSE;
 373
 374    svgascreen->use_vs30 =
 375       sws->get_cap(sws, SVGA3D_DEVCAP_VERTEX_SHADER_VERSION, &result) &&
 376       result.u >= SVGA3DVSVERSION_30 ? TRUE : FALSE;
 377
 378 #if 1
 379    /* Shader model 2.0 is unsupported at the moment. */
 380    if(!svgascreen->use_ps30 || !svgascreen->use_vs30)
 381       goto error2;
 382 #else
 383    if(debug_get_bool_option("SVGA_NO_SM30", FALSE))
 384       svgascreen->use_vs30 = svgascreen->use_ps30 = FALSE;
 385 #endif
 386
 387    svgascreen->swc = sws->context_create(sws);
 388    if(!svgascreen->swc)
 389       goto error2;
 390
 391    pipe_mutex_init(svgascreen->tex_mutex);
 392    pipe_mutex_init(svgascreen->swc_mutex);
 393
 394    svga_screen_cache_init(svgascreen);
 395
 396    return screen;
 397 error2:
 398    FREE(svgascreen);
 399 error1:
 400    return NULL;
 401 }
 402
 403 void svga_screen_flush( struct svga_screen *svgascreen,
 404                         struct pipe_fence_handle **pfence )
 405 {
 406    struct pipe_fence_handle *fence = NULL;
 407
 408    SVGA_DBG(DEBUG_PERF, "%s\n", __FUNCTION__);
 409
 410    pipe_mutex_lock(svgascreen->swc_mutex);
 411    svgascreen->swc->flush(svgascreen->swc, &fence);
 412    pipe_mutex_unlock(svgascreen->swc_mutex);
 413
 414    svga_screen_cache_flush(svgascreen, fence);
 415
 416    if(pfence)
 417       *pfence = fence;
 418    else
 419       svgascreen->sws->fence_reference(svgascreen->sws, &fence, NULL);
 420 }
 421
 422 struct svga_winsys_screen *
 423 svga_winsys_screen(struct pipe_screen *screen)
 424 {
 425    return svga_screen(screen)->sws;
 426 }
 427
 428 #ifdef DEBUG
 429 struct svga_screen *
 430 svga_screen(struct pipe_screen *screen)
 431 {
 432    assert(screen);
 433    assert(screen->destroy == svga_destroy_screen);
 434    return (struct svga_screen *)screen;
 435 }
 436 #endif