src/gallium/drivers/svga/svga_draw.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 "pipe/p_compiler.h"
  27 #include "util/u_inlines.h"
  28 #include "pipe/p_defines.h"
  29 #include "util/u_memory.h"
  30 #include "util/u_math.h"
  31 #include "util/u_upload_mgr.h"
  32
  33 #include "svga_context.h"
  34 #include "svga_draw.h"
  35 #include "svga_draw_private.h"
  36 #include "svga_debug.h"
  37 #include "svga_screen.h"
  38 #include "svga_resource_buffer.h"
  39 #include "svga_resource_texture.h"
  40 #include "svga_surface.h"
  41 #include "svga_winsys.h"
  42 #include "svga_cmd.h"
  43
  44
  45 struct svga_hwtnl *svga_hwtnl_create( struct svga_context *svga,
  46                                       struct u_upload_mgr *upload_ib,
  47                                       struct svga_winsys_context *swc )
  48 {
  49    struct svga_hwtnl *hwtnl = CALLOC_STRUCT(svga_hwtnl);
  50    if (hwtnl == NULL)
  51       goto fail;
  52
  53    hwtnl->svga = svga;
  54    hwtnl->upload_ib = upload_ib;
  55
  56    hwtnl->cmd.swc = swc;
  57
  58    return hwtnl;
  59
  60 fail:
  61    return NULL;
  62 }
  63
  64 void svga_hwtnl_destroy( struct svga_hwtnl *hwtnl )
  65 {
  66    unsigned i, j;
  67
  68    for (i = 0; i < PIPE_PRIM_MAX; i++) {
  69       for (j = 0; j < IDX_CACHE_MAX; j++) {
  70          pipe_resource_reference( &hwtnl->index_cache[i][j].buffer,
  71                                 NULL );
  72       }
  73    }
  74
  75    for (i = 0; i < hwtnl->cmd.vdecl_count; i++)
  76       pipe_resource_reference(&hwtnl->cmd.vdecl_vb[i], NULL);
  77
  78    for (i = 0; i < hwtnl->cmd.prim_count; i++)
  79       pipe_resource_reference(&hwtnl->cmd.prim_ib[i], NULL);
  80
  81
  82    FREE(hwtnl);
  83 }
  84
  85
  86 void svga_hwtnl_set_flatshade( struct svga_hwtnl *hwtnl,
  87                                boolean flatshade,
  88                                boolean flatshade_first )
  89 {
  90    hwtnl->hw_pv = PV_FIRST;
  91    hwtnl->api_pv = (flatshade && !flatshade_first) ? PV_LAST : PV_FIRST;
  92 }
  93
  94 void svga_hwtnl_set_unfilled( struct svga_hwtnl *hwtnl,
  95                               unsigned mode )
  96 {
  97    hwtnl->api_fillmode = mode;
  98 }
  99
 100 void svga_hwtnl_reset_vdecl( struct svga_hwtnl *hwtnl,
 101                              unsigned count )
 102 {
 103    unsigned i;
 104
 105    assert(hwtnl->cmd.prim_count == 0);
 106
 107    for (i = count; i < hwtnl->cmd.vdecl_count; i++) {
 108       pipe_resource_reference(&hwtnl->cmd.vdecl_vb[i],
 109                             NULL);
 110    }
 111
 112    hwtnl->cmd.vdecl_count = count;
 113 }
 114
 115
 116 void svga_hwtnl_vdecl( struct svga_hwtnl *hwtnl,
 117                        unsigned i,
 118                        const SVGA3dVertexDecl *decl,
 119                        struct pipe_resource *vb)
 120 {
 121    assert(hwtnl->cmd.prim_count == 0);
 122
 123    assert( i < hwtnl->cmd.vdecl_count );
 124
 125    hwtnl->cmd.vdecl[i] = *decl;
 126
 127    pipe_resource_reference(&hwtnl->cmd.vdecl_vb[i], vb);
 128 }
 129
 130
 131 /**
 132  * Determine whether the specified buffer is referred in the primitive queue,
 133  * for which no commands have been written yet.
 134  */
 135 boolean
 136 svga_hwtnl_is_buffer_referred( struct svga_hwtnl *hwtnl,
 137                                struct pipe_resource *buffer)
 138 {
 139    unsigned i;
 140
 141    if (svga_buffer_is_user_buffer(buffer)) {
 142       return FALSE;
 143    }
 144
 145    if (!hwtnl->cmd.prim_count) {
 146       return FALSE;
 147    }
 148
 149    for (i = 0; i < hwtnl->cmd.vdecl_count; ++i) {
 150       if (hwtnl->cmd.vdecl_vb[i] == buffer) {
 151          return TRUE;
 152       }
 153    }
 154
 155    for (i = 0; i < hwtnl->cmd.prim_count; ++i) {
 156       if (hwtnl->cmd.prim_ib[i] == buffer) {
 157          return TRUE;
 158       }
 159    }
 160
 161    return FALSE;
 162 }
 163
 164
 165 enum pipe_error
 166 svga_hwtnl_flush( struct svga_hwtnl *hwtnl )
 167 {
 168    struct svga_winsys_context *swc = hwtnl->cmd.swc;
 169    struct svga_context *svga = hwtnl->svga;
 170    enum pipe_error ret;
 171
 172    if (hwtnl->cmd.prim_count) {
 173       struct svga_winsys_surface *vb_handle[SVGA3D_INPUTREG_MAX];
 174       struct svga_winsys_surface *ib_handle[QSZ];
 175       struct svga_winsys_surface *handle;
 176       SVGA3dVertexDecl *vdecl;
 177       SVGA3dPrimitiveRange *prim;
 178       unsigned i;
 179
 180       /* Unmap upload manager vertex buffers */
 181       u_upload_unmap(svga->upload_vb);
 182
 183       for (i = 0; i < hwtnl->cmd.vdecl_count; i++) {
 184          handle = svga_buffer_handle(svga, hwtnl->cmd.vdecl_vb[i]);
 185          if (handle == NULL)
 186             return PIPE_ERROR_OUT_OF_MEMORY;
 187
 188          vb_handle[i] = handle;
 189       }
 190
 191       /* Unmap upload manager index buffers */
 192       u_upload_unmap(svga->upload_ib);
 193
 194       for (i = 0; i < hwtnl->cmd.prim_count; i++) {
 195          if (hwtnl->cmd.prim_ib[i]) {
 196             handle = svga_buffer_handle(svga, hwtnl->cmd.prim_ib[i]);
 197             if (handle == NULL)
 198                return PIPE_ERROR_OUT_OF_MEMORY;
 199          }
 200          else
 201             handle = NULL;
 202
 203          ib_handle[i] = handle;
 204       }
 205
 206       if (svga->rebind.rendertargets) {
 207          ret = svga_reemit_framebuffer_bindings(svga);
 208          if (ret != PIPE_OK) {
 209             return ret;
 210          }
 211       }
 212
 213       if (svga->rebind.texture_samplers) {
 214          ret = svga_reemit_tss_bindings(svga);
 215          if (ret != PIPE_OK) {
 216             return ret;
 217          }
 218       }
 219
 220       SVGA_DBG(DEBUG_DMA, "draw to sid %p, %d prims\n",
 221                svga->curr.framebuffer.cbufs[0] ?
 222                svga_surface(svga->curr.framebuffer.cbufs[0])->handle : NULL,
 223                hwtnl->cmd.prim_count);
 224
 225       ret = SVGA3D_BeginDrawPrimitives(swc,
 226                                        &vdecl,
 227                                        hwtnl->cmd.vdecl_count,
 228                                        &prim,
 229                                        hwtnl->cmd.prim_count);
 230       if (ret != PIPE_OK)
 231          return ret;
 232
 233
 234       memcpy( vdecl,
 235               hwtnl->cmd.vdecl,
 236               hwtnl->cmd.vdecl_count * sizeof hwtnl->cmd.vdecl[0]);
 237
 238       for (i = 0; i < hwtnl->cmd.vdecl_count; i++) {
 239          /* Given rangeHint is considered to be relative to indexBias, and
 240           * indexBias varies per primitive, we cannot accurately supply an
 241           * rangeHint when emitting more than one primitive per draw command.
 242           */
 243          if (hwtnl->cmd.prim_count == 1) {
 244             vdecl[i].rangeHint.first = hwtnl->cmd.min_index[0];
 245             vdecl[i].rangeHint.last = hwtnl->cmd.max_index[0] + 1;
 246          }
 247          else {
 248             vdecl[i].rangeHint.first = 0;
 249             vdecl[i].rangeHint.last = 0;
 250          }
 251
 252          swc->surface_relocation(swc,
 253                                  &vdecl[i].array.surfaceId,
 254                                  vb_handle[i],
 255                                  SVGA_RELOC_READ);
 256       }
 257
 258       memcpy( prim,
 259               hwtnl->cmd.prim,
 260               hwtnl->cmd.prim_count * sizeof hwtnl->cmd.prim[0]);
 261
 262       for (i = 0; i < hwtnl->cmd.prim_count; i++) {
 263          swc->surface_relocation(swc,
 264                                  &prim[i].indexArray.surfaceId,
 265                                  ib_handle[i],
 266                                  SVGA_RELOC_READ);
 267          pipe_resource_reference(&hwtnl->cmd.prim_ib[i], NULL);
 268       }
 269
 270       SVGA_FIFOCommitAll( swc );
 271       hwtnl->cmd.prim_count = 0;
 272    }
 273
 274    return PIPE_OK;
 275 }
 276
 277
 278 void svga_hwtnl_set_index_bias( struct svga_hwtnl *hwtnl,
 279                                 int index_bias)
 280 {
 281    hwtnl->index_bias = index_bias;
 282 }
 283
 284
 285
 286 /***********************************************************************
 287  * Internal functions:
 288  */
 289
 290 enum pipe_error svga_hwtnl_prim( struct svga_hwtnl *hwtnl,
 291                                  const SVGA3dPrimitiveRange *range,
 292                                  unsigned min_index,
 293                                  unsigned max_index,
 294                                  struct pipe_resource *ib )
 295 {
 296    enum pipe_error ret = PIPE_OK;
 297
 298 #ifdef DEBUG
 299    {
 300       unsigned i;
 301       for (i = 0; i < hwtnl->cmd.vdecl_count; i++) {
 302          struct pipe_resource *vb = hwtnl->cmd.vdecl_vb[i];
 303          unsigned size = vb ? vb->width0 : 0;
 304          unsigned offset = hwtnl->cmd.vdecl[i].array.offset;
 305          unsigned stride = hwtnl->cmd.vdecl[i].array.stride;
 306          int index_bias = (int) range->indexBias + hwtnl->index_bias;
 307          unsigned width;
 308
 309          assert(vb);
 310          assert(size);
 311          assert(offset < size);
 312          assert(min_index <= max_index);
 313
 314          switch (hwtnl->cmd.vdecl[i].identity.type) {
 315          case SVGA3D_DECLTYPE_FLOAT1:
 316             width = 4;
 317             break;
 318          case SVGA3D_DECLTYPE_FLOAT2:
 319             width = 4*2;
 320             break;
 321          case SVGA3D_DECLTYPE_FLOAT3:
 322             width = 4*3;
 323             break;
 324          case SVGA3D_DECLTYPE_FLOAT4:
 325             width = 4*4;
 326             break;
 327          case SVGA3D_DECLTYPE_D3DCOLOR:
 328             width = 4;
 329             break;
 330          case SVGA3D_DECLTYPE_UBYTE4:
 331             width = 1*4;
 332             break;
 333          case SVGA3D_DECLTYPE_SHORT2:
 334             width = 2*2;
 335             break;
 336          case SVGA3D_DECLTYPE_SHORT4:
 337             width = 2*4;
 338             break;
 339          case SVGA3D_DECLTYPE_UBYTE4N:
 340             width = 1*4;
 341             break;
 342          case SVGA3D_DECLTYPE_SHORT2N:
 343             width = 2*2;
 344             break;
 345          case SVGA3D_DECLTYPE_SHORT4N:
 346             width = 2*4;
 347             break;
 348          case SVGA3D_DECLTYPE_USHORT2N:
 349             width = 2*2;
 350             break;
 351          case SVGA3D_DECLTYPE_USHORT4N:
 352             width = 2*4;
 353             break;
 354          case SVGA3D_DECLTYPE_UDEC3:
 355             width = 4;
 356             break;
 357          case SVGA3D_DECLTYPE_DEC3N:
 358             width = 4;
 359             break;
 360          case SVGA3D_DECLTYPE_FLOAT16_2:
 361             width = 2*2;
 362             break;
 363          case SVGA3D_DECLTYPE_FLOAT16_4:
 364             width = 2*4;
 365             break;
 366          default:
 367             assert(0);
 368             width = 0;
 369             break;
 370          }
 371
 372          if (index_bias >= 0) {
 373             assert(offset + index_bias*stride + width <= size);
 374          }
 375
 376          /*
 377           * min_index/max_index are merely conservative guesses, so we can't
 378           * make buffer overflow detection based on their values.
 379           */
 380       }
 381
 382       assert(range->indexWidth == range->indexArray.stride);
 383
 384       if(ib) {
 385          unsigned size = ib->width0;
 386          unsigned offset = range->indexArray.offset;
 387          unsigned stride = range->indexArray.stride;
 388          unsigned count;
 389
 390          assert(size);
 391          assert(offset < size);
 392          assert(stride);
 393
 394          switch (range->primType) {
 395          case SVGA3D_PRIMITIVE_POINTLIST:
 396             count = range->primitiveCount;
 397             break;
 398          case SVGA3D_PRIMITIVE_LINELIST:
 399             count = range->primitiveCount * 2;
 400             break;
 401          case SVGA3D_PRIMITIVE_LINESTRIP:
 402             count = range->primitiveCount + 1;
 403             break;
 404          case SVGA3D_PRIMITIVE_TRIANGLELIST:
 405             count = range->primitiveCount * 3;
 406             break;
 407          case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
 408             count = range->primitiveCount + 2;
 409             break;
 410          case SVGA3D_PRIMITIVE_TRIANGLEFAN:
 411             count = range->primitiveCount + 2;
 412             break;
 413          default:
 414             assert(0);
 415             count = 0;
 416             break;
 417          }
 418
 419          assert(offset + count*stride <= size);
 420       }
 421    }
 422 #endif
 423
 424    if (hwtnl->cmd.prim_count+1 >= QSZ) {
 425       ret = svga_hwtnl_flush( hwtnl );
 426       if (ret != PIPE_OK)
 427          return ret;
 428    }
 429
 430    /* min/max indices are relative to bias */
 431    hwtnl->cmd.min_index[hwtnl->cmd.prim_count] = min_index;
 432    hwtnl->cmd.max_index[hwtnl->cmd.prim_count] = max_index;
 433
 434    hwtnl->cmd.prim[hwtnl->cmd.prim_count] = *range;
 435    hwtnl->cmd.prim[hwtnl->cmd.prim_count].indexBias += hwtnl->index_bias;
 436
 437    pipe_resource_reference(&hwtnl->cmd.prim_ib[hwtnl->cmd.prim_count], ib);
 438    hwtnl->cmd.prim_count++;
 439
 440    return ret;
 441 }