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