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    int 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 enum pipe_error
 133 svga_hwtnl_flush( struct svga_hwtnl *hwtnl )
 134 {
 135    struct svga_winsys_context *swc = hwtnl->cmd.swc;
 136    struct svga_context *svga = hwtnl->svga;
 137    enum pipe_error ret;
 138
 139    if (hwtnl->cmd.prim_count) {
 140       struct svga_winsys_surface *vb_handle[SVGA3D_INPUTREG_MAX];
 141       struct svga_winsys_surface *ib_handle[QSZ];
 142       struct svga_winsys_surface *handle;
 143       SVGA3dVertexDecl *vdecl;
 144       SVGA3dPrimitiveRange *prim;
 145       unsigned i;
 146
 147       /* Unmap upload manager vertex buffers */
 148       u_upload_unmap(svga->upload_vb);
 149
 150       for (i = 0; i < hwtnl->cmd.vdecl_count; i++) {
 151          handle = svga_buffer_handle(svga, hwtnl->cmd.vdecl_vb[i]);
 152          if (handle == NULL)
 153             return PIPE_ERROR_OUT_OF_MEMORY;
 154
 155          vb_handle[i] = handle;
 156       }
 157
 158       /* Unmap upload manager index buffers */
 159       u_upload_unmap(svga->upload_ib);
 160
 161       for (i = 0; i < hwtnl->cmd.prim_count; i++) {
 162          if (hwtnl->cmd.prim_ib[i]) {
 163             handle = svga_buffer_handle(svga, hwtnl->cmd.prim_ib[i]);
 164             if (handle == NULL)
 165                return PIPE_ERROR_OUT_OF_MEMORY;
 166          }
 167          else
 168             handle = NULL;
 169
 170          ib_handle[i] = handle;
 171       }
 172
 173       if (svga->rebind.rendertargets) {
 174          ret = svga_reemit_framebuffer_bindings(svga);
 175          if (ret != PIPE_OK) {
 176             return ret;
 177          }
 178       }
 179
 180       if (svga->rebind.texture_samplers) {
 181          ret = svga_reemit_tss_bindings(svga);
 182          if (ret != PIPE_OK) {
 183             return ret;
 184          }
 185       }
 186
 187       SVGA_DBG(DEBUG_DMA, "draw to sid %p, %d prims\n",
 188                svga->curr.framebuffer.cbufs[0] ?
 189                svga_surface(svga->curr.framebuffer.cbufs[0])->handle : NULL,
 190                hwtnl->cmd.prim_count);
 191
 192       ret = SVGA3D_BeginDrawPrimitives(swc,
 193                                        &vdecl,
 194                                        hwtnl->cmd.vdecl_count,
 195                                        &prim,
 196                                        hwtnl->cmd.prim_count);
 197       if (ret != PIPE_OK)
 198          return ret;
 199
 200
 201       memcpy( vdecl,
 202               hwtnl->cmd.vdecl,
 203               hwtnl->cmd.vdecl_count * sizeof hwtnl->cmd.vdecl[0]);
 204
 205       for (i = 0; i < hwtnl->cmd.vdecl_count; i++) {
 206          /* Given rangeHint is considered to be relative to indexBias, and
 207           * indexBias varies per primitive, we cannot accurately supply an
 208           * rangeHint when emitting more than one primitive per draw command.
 209           */
 210          if (hwtnl->cmd.prim_count == 1) {
 211             vdecl[i].rangeHint.first = hwtnl->cmd.min_index[0];
 212             vdecl[i].rangeHint.last = hwtnl->cmd.max_index[0] + 1;
 213          }
 214          else {
 215             vdecl[i].rangeHint.first = 0;
 216             vdecl[i].rangeHint.last = 0;
 217          }
 218
 219          swc->surface_relocation(swc,
 220                                  &vdecl[i].array.surfaceId,
 221                                  vb_handle[i],
 222                                  SVGA_RELOC_READ);
 223       }
 224
 225       memcpy( prim,
 226               hwtnl->cmd.prim,
 227               hwtnl->cmd.prim_count * sizeof hwtnl->cmd.prim[0]);
 228
 229       for (i = 0; i < hwtnl->cmd.prim_count; i++) {
 230          swc->surface_relocation(swc,
 231                                  &prim[i].indexArray.surfaceId,
 232                                  ib_handle[i],
 233                                  SVGA_RELOC_READ);
 234          pipe_resource_reference(&hwtnl->cmd.prim_ib[i], NULL);
 235       }
 236
 237       SVGA_FIFOCommitAll( swc );
 238       hwtnl->cmd.prim_count = 0;
 239    }
 240
 241    return PIPE_OK;
 242 }
 243
 244
 245 void svga_hwtnl_set_index_bias( struct svga_hwtnl *hwtnl,
 246                                 int index_bias)
 247 {
 248    hwtnl->index_bias = index_bias;
 249 }
 250
 251
 252
 253 /***********************************************************************
 254  * Internal functions:
 255  */
 256
 257 enum pipe_error svga_hwtnl_prim( struct svga_hwtnl *hwtnl,
 258                                  const SVGA3dPrimitiveRange *range,
 259                                  unsigned min_index,
 260                                  unsigned max_index,
 261                                  struct pipe_resource *ib )
 262 {
 263    int ret = PIPE_OK;
 264
 265 #ifdef DEBUG
 266    {
 267       unsigned i;
 268       for (i = 0; i < hwtnl->cmd.vdecl_count; i++) {
 269          struct pipe_resource *vb = hwtnl->cmd.vdecl_vb[i];
 270          unsigned size = vb ? vb->width0 : 0;
 271          unsigned offset = hwtnl->cmd.vdecl[i].array.offset;
 272          unsigned stride = hwtnl->cmd.vdecl[i].array.stride;
 273          int index_bias = (int) range->indexBias + hwtnl->index_bias;
 274          unsigned width;
 275
 276          assert(vb);
 277          assert(size);
 278          assert(offset < size);
 279          assert(min_index <= max_index);
 280          if (index_bias >= 0) {
 281             assert(offset + index_bias*stride < size);
 282          }
 283          if (min_index != ~0) {
 284             assert(offset + (index_bias + min_index) * stride < size);
 285          }
 286
 287          switch (hwtnl->cmd.vdecl[i].identity.type) {
 288          case SVGA3D_DECLTYPE_FLOAT1:
 289             width = 4;
 290             break;
 291          case SVGA3D_DECLTYPE_FLOAT2:
 292             width = 4*2;
 293             break;
 294          case SVGA3D_DECLTYPE_FLOAT3:
 295             width = 4*3;
 296             break;
 297          case SVGA3D_DECLTYPE_FLOAT4:
 298             width = 4*4;
 299             break;
 300          case SVGA3D_DECLTYPE_D3DCOLOR:
 301             width = 4;
 302             break;
 303          case SVGA3D_DECLTYPE_UBYTE4:
 304             width = 1*4;
 305             break;
 306          case SVGA3D_DECLTYPE_SHORT2:
 307             width = 2*2;
 308             break;
 309          case SVGA3D_DECLTYPE_SHORT4:
 310             width = 2*4;
 311             break;
 312          case SVGA3D_DECLTYPE_UBYTE4N:
 313             width = 1*4;
 314             break;
 315          case SVGA3D_DECLTYPE_SHORT2N:
 316             width = 2*2;
 317             break;
 318          case SVGA3D_DECLTYPE_SHORT4N:
 319             width = 2*4;
 320             break;
 321          case SVGA3D_DECLTYPE_USHORT2N:
 322             width = 2*2;
 323             break;
 324          case SVGA3D_DECLTYPE_USHORT4N:
 325             width = 2*4;
 326             break;
 327          case SVGA3D_DECLTYPE_UDEC3:
 328             width = 4;
 329             break;
 330          case SVGA3D_DECLTYPE_DEC3N:
 331             width = 4;
 332             break;
 333          case SVGA3D_DECLTYPE_FLOAT16_2:
 334             width = 2*2;
 335             break;
 336          case SVGA3D_DECLTYPE_FLOAT16_4:
 337             width = 2*4;
 338             break;
 339          default:
 340             assert(0);
 341             width = 0;
 342             break;
 343          }
 344
 345          if (max_index != ~0) {
 346             assert(offset + (index_bias + max_index) * stride + width <= size);
 347          }
 348       }
 349
 350       assert(range->indexWidth == range->indexArray.stride);
 351
 352       if(ib) {
 353          unsigned size = ib->width0;
 354          unsigned offset = range->indexArray.offset;
 355          unsigned stride = range->indexArray.stride;
 356          unsigned count;
 357
 358          assert(size);
 359          assert(offset < size);
 360          assert(stride);
 361
 362          switch (range->primType) {
 363          case SVGA3D_PRIMITIVE_POINTLIST:
 364             count = range->primitiveCount;
 365             break;
 366          case SVGA3D_PRIMITIVE_LINELIST:
 367             count = range->primitiveCount * 2;
 368             break;
 369          case SVGA3D_PRIMITIVE_LINESTRIP:
 370             count = range->primitiveCount + 1;
 371             break;
 372          case SVGA3D_PRIMITIVE_TRIANGLELIST:
 373             count = range->primitiveCount * 3;
 374             break;
 375          case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
 376             count = range->primitiveCount + 2;
 377             break;
 378          case SVGA3D_PRIMITIVE_TRIANGLEFAN:
 379             count = range->primitiveCount + 2;
 380             break;
 381          default:
 382             assert(0);
 383             count = 0;
 384             break;
 385          }
 386
 387          assert(offset + count*stride <= size);
 388       }
 389    }
 390 #endif
 391
 392    if (hwtnl->cmd.prim_count+1 >= QSZ) {
 393       ret = svga_hwtnl_flush( hwtnl );
 394       if (ret != PIPE_OK)
 395          return ret;
 396    }
 397
 398    /* min/max indices are relative to bias */
 399    hwtnl->cmd.min_index[hwtnl->cmd.prim_count] = min_index;
 400    hwtnl->cmd.max_index[hwtnl->cmd.prim_count] = max_index;
 401
 402    hwtnl->cmd.prim[hwtnl->cmd.prim_count] = *range;
 403    hwtnl->cmd.prim[hwtnl->cmd.prim_count].indexBias += hwtnl->index_bias;
 404
 405    pipe_resource_reference(&hwtnl->cmd.prim_ib[hwtnl->cmd.prim_count], ib);
 406    hwtnl->cmd.prim_count++;
 407
 408    return ret;
 409 }