svga_draw.c revision 379353e16b6666da5833a59cff07785aaca82473 
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
45struct 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
60fail:
61   return NULL;
62}
63
64void 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
86void 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
94void svga_hwtnl_set_unfilled( struct svga_hwtnl *hwtnl,
95                              unsigned mode )
96{
97   hwtnl->api_fillmode = mode;
98}
99
100void 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
116void 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
132enum pipe_error
133svga_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
245void 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
257enum 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 && index_bias >= 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}
410