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