svga_draw.c revision 28486880ca3ec39419ccee0cb1a3bedc9ef7117c 
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
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
43struct 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
58fail:
59   return NULL;
60}
61
62void 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
84void 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
92void svga_hwtnl_set_unfilled( struct svga_hwtnl *hwtnl,
93                              unsigned mode )
94{
95   hwtnl->api_fillmode = mode;
96}
97
98void 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
114void 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
131enum pipe_error
132svga_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
231enum 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}
379