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_surface(svga->curr.framebuffer.cbufs[0])->handle,
 168                hwtnl->cmd.prim_count);
 169
 170       ret = SVGA3D_BeginDrawPrimitives(swc,
 171                                        &vdecl,
 172                                        hwtnl->cmd.vdecl_count,
 173                                        &prim,
 174                                        hwtnl->cmd.prim_count);
 175       if (ret != PIPE_OK)
 176          return ret;
 177
 178
 179       memcpy( vdecl,
 180               hwtnl->cmd.vdecl,
 181               hwtnl->cmd.vdecl_count * sizeof hwtnl->cmd.vdecl[0]);
 182
 183       for (i = 0; i < hwtnl->cmd.vdecl_count; i++) {
 184          /* Given rangeHint is considered to be relative to indexBias, and
 185           * indexBias varies per primitive, we cannot accurately supply an
 186           * rangeHint when emitting more than one primitive per draw command.
 187           */
 188          if (hwtnl->cmd.prim_count == 1) {
 189             vdecl[i].rangeHint.first = hwtnl->cmd.min_index[0];
 190             vdecl[i].rangeHint.last = hwtnl->cmd.max_index[0] + 1;
 191          }
 192          else {
 193             vdecl[i].rangeHint.first = 0;
 194             vdecl[i].rangeHint.last = 0;
 195          }
 196
 197          swc->surface_relocation(swc,
 198                                  &vdecl[i].array.surfaceId,
 199                                  vb_handle[i],
 200                                  PIPE_BUFFER_USAGE_GPU_READ);
 201       }
 202
 203       memcpy( prim,
 204               hwtnl->cmd.prim,
 205               hwtnl->cmd.prim_count * sizeof hwtnl->cmd.prim[0]);
 206
 207       for (i = 0; i < hwtnl->cmd.prim_count; i++) {
 208          swc->surface_relocation(swc,
 209                                  &prim[i].indexArray.surfaceId,
 210                                  ib_handle[i],
 211                                  PIPE_BUFFER_USAGE_GPU_READ);
 212          pipe_buffer_reference(&hwtnl->cmd.prim_ib[i], NULL);
 213       }
 214
 215       SVGA_FIFOCommitAll( swc );
 216       hwtnl->cmd.prim_count = 0;
 217    }
 218
 219    return PIPE_OK;
 220 }
 221
 222
 223
 224
 225
 226 /***********************************************************************
 227  * Internal functions:
 228  */
 229
 230 enum pipe_error svga_hwtnl_prim( struct svga_hwtnl *hwtnl,
 231                                  const SVGA3dPrimitiveRange *range,
 232                                  unsigned min_index,
 233                                  unsigned max_index,
 234                                  struct pipe_buffer *ib )
 235 {
 236    int ret = PIPE_OK;
 237
 238 #ifdef DEBUG
 239    {
 240       unsigned i;
 241       for (i = 0; i < hwtnl->cmd.vdecl_count; i++) {
 242          struct pipe_buffer *vb = hwtnl->cmd.vdecl_vb[i];
 243          unsigned size = vb ? vb->size : 0;
 244          unsigned offset = hwtnl->cmd.vdecl[i].array.offset;
 245          unsigned stride = hwtnl->cmd.vdecl[i].array.stride;
 246          unsigned index_bias = range->indexBias;
 247          unsigned width;
 248
 249          assert(vb);
 250          assert(size);
 251          assert(offset < size);
 252          assert(index_bias >= 0);
 253          assert(min_index <= max_index);
 254          assert(offset + index_bias*stride < size);
 255          assert(offset + (index_bias + min_index)*stride < size);
 256
 257          switch (hwtnl->cmd.vdecl[i].identity.type) {
 258          case SVGA3D_DECLTYPE_FLOAT1:
 259             width = 4;
 260             break;
 261          case SVGA3D_DECLTYPE_FLOAT2:
 262             width = 4*2;
 263             break;
 264          case SVGA3D_DECLTYPE_FLOAT3:
 265             width = 4*3;
 266             break;
 267          case SVGA3D_DECLTYPE_FLOAT4:
 268             width = 4*4;
 269             break;
 270          case SVGA3D_DECLTYPE_D3DCOLOR:
 271             width = 4;
 272             break;
 273          case SVGA3D_DECLTYPE_UBYTE4:
 274             width = 1*4;
 275             break;
 276          case SVGA3D_DECLTYPE_SHORT2:
 277             width = 2*2;
 278             break;
 279          case SVGA3D_DECLTYPE_SHORT4:
 280             width = 2*4;
 281             break;
 282          case SVGA3D_DECLTYPE_UBYTE4N:
 283             width = 1*4;
 284             break;
 285          case SVGA3D_DECLTYPE_SHORT2N:
 286             width = 2*2;
 287             break;
 288          case SVGA3D_DECLTYPE_SHORT4N:
 289             width = 2*4;
 290             break;
 291          case SVGA3D_DECLTYPE_USHORT2N:
 292             width = 2*2;
 293             break;
 294          case SVGA3D_DECLTYPE_USHORT4N:
 295             width = 2*4;
 296             break;
 297          case SVGA3D_DECLTYPE_UDEC3:
 298             width = 4;
 299             break;
 300          case SVGA3D_DECLTYPE_DEC3N:
 301             width = 4;
 302             break;
 303          case SVGA3D_DECLTYPE_FLOAT16_2:
 304             width = 2*2;
 305             break;
 306          case SVGA3D_DECLTYPE_FLOAT16_4:
 307             width = 2*4;
 308             break;
 309          default:
 310             assert(0);
 311             width = 0;
 312             break;
 313          }
 314
 315          assert(!stride || width <= stride);
 316          assert(offset + (index_bias + max_index)*stride + width <= size);
 317       }
 318
 319       assert(range->indexWidth == range->indexArray.stride);
 320
 321       if(ib) {
 322          unsigned size = ib->size;
 323          unsigned offset = range->indexArray.offset;
 324          unsigned stride = range->indexArray.stride;
 325          unsigned count;
 326
 327          assert(size);
 328          assert(offset < size);
 329          assert(stride);
 330
 331          switch (range->primType) {
 332          case SVGA3D_PRIMITIVE_POINTLIST:
 333             count = range->primitiveCount;
 334             break;
 335          case SVGA3D_PRIMITIVE_LINELIST:
 336             count = range->primitiveCount * 2;
 337             break;
 338          case SVGA3D_PRIMITIVE_LINESTRIP:
 339             count = range->primitiveCount + 1;
 340             break;
 341          case SVGA3D_PRIMITIVE_TRIANGLELIST:
 342             count = range->primitiveCount * 3;
 343             break;
 344          case SVGA3D_PRIMITIVE_TRIANGLESTRIP:
 345             count = range->primitiveCount + 2;
 346             break;
 347          case SVGA3D_PRIMITIVE_TRIANGLEFAN:
 348             count = range->primitiveCount + 2;
 349             break;
 350          default:
 351             assert(0);
 352             count = 0;
 353             break;
 354          }
 355
 356          assert(offset + count*stride <= size);
 357       }
 358    }
 359 #endif
 360
 361    if (hwtnl->cmd.prim_count+1 >= QSZ) {
 362       ret = svga_hwtnl_flush( hwtnl );
 363       if (ret != PIPE_OK)
 364          return ret;
 365    }
 366
 367    /* min/max indices are relative to bias */
 368    hwtnl->cmd.min_index[hwtnl->cmd.prim_count] = min_index;
 369    hwtnl->cmd.max_index[hwtnl->cmd.prim_count] = max_index;
 370
 371    hwtnl->cmd.prim[hwtnl->cmd.prim_count] = *range;
 372
 373    pipe_buffer_reference(&hwtnl->cmd.prim_ib[hwtnl->cmd.prim_count], ib);
 374    hwtnl->cmd.prim_count++;
 375
 376    return ret;
 377 }