summaryrefslogtreecommitdiff
path: root/src/gallium/drivers/llvmpipe/lp_screen.c
blob: 96633d93654df5c5faf1ee08f175043e35780e6d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
/**************************************************************************
 * 
 * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
 * All Rights Reserved.
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sub license, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 * 
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 * 
 **************************************************************************/


#include "util/u_memory.h"
#include "util/u_math.h"
#include "util/u_cpu_detect.h"
#include "util/u_format.h"
#include "util/u_format_s3tc.h"
#include "pipe/p_defines.h"
#include "pipe/p_screen.h"
#include "draw/draw_context.h"

#include "lp_texture.h"
#include "lp_fence.h"
#include "lp_jit.h"
#include "lp_screen.h"
#include "lp_context.h"
#include "lp_debug.h"
#include "lp_public.h"
#include "lp_limits.h"
#include "lp_rast.h"

#include "state_tracker/sw_winsys.h"

#ifdef DEBUG
int LP_DEBUG = 0;

static const struct debug_named_value lp_debug_flags[] = {
   { "pipe",   DEBUG_PIPE, NULL },
   { "tgsi",   DEBUG_TGSI, NULL },
   { "tex",    DEBUG_TEX, NULL },
   { "setup",  DEBUG_SETUP, NULL },
   { "rast",   DEBUG_RAST, NULL },
   { "query",  DEBUG_QUERY, NULL },
   { "screen", DEBUG_SCREEN, NULL },
   { "show_tiles",    DEBUG_SHOW_TILES, NULL },
   { "show_subtiles", DEBUG_SHOW_SUBTILES, NULL },
   { "counters", DEBUG_COUNTERS, NULL },
   { "scene", DEBUG_SCENE, NULL },
   { "fence", DEBUG_FENCE, NULL },
   { "mem", DEBUG_MEM, NULL },
   { "fs", DEBUG_FS, NULL },
   DEBUG_NAMED_VALUE_END
};
#endif

int LP_PERF = 0;
static const struct debug_named_value lp_perf_flags[] = {
   { "texmem",         PERF_TEX_MEM, NULL },
   { "no_mipmap",      PERF_NO_MIPMAPS, NULL },
   { "no_linear",      PERF_NO_LINEAR, NULL },
   { "no_mip_linear",  PERF_NO_MIP_LINEAR, NULL },
   { "no_tex",         PERF_NO_TEX, NULL },
   { "no_blend",       PERF_NO_BLEND, NULL },
   { "no_depth",       PERF_NO_DEPTH, NULL },
   { "no_alphatest",   PERF_NO_ALPHATEST, NULL },
   DEBUG_NAMED_VALUE_END
};


static const char *
llvmpipe_get_vendor(struct pipe_screen *screen)
{
   return "VMware, Inc.";
}


static const char *
llvmpipe_get_name(struct pipe_screen *screen)
{
   return "llvmpipe";
}


static int
llvmpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
{
   switch (param) {
   case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
      return PIPE_MAX_SAMPLERS;
   case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS:
      /* At this time, the draw module and llvmpipe driver only
       * support vertex shader texture lookups when LLVM is enabled in
       * the draw module.
       */
      if (debug_get_bool_option("DRAW_USE_LLVM", TRUE))
         return PIPE_MAX_VERTEX_SAMPLERS;
      else
         return 0;
   case PIPE_CAP_MAX_COMBINED_SAMPLERS:
      return PIPE_MAX_SAMPLERS + PIPE_MAX_VERTEX_SAMPLERS;
   case PIPE_CAP_NPOT_TEXTURES:
      return 1;
   case PIPE_CAP_TWO_SIDED_STENCIL:
      return 1;
   case PIPE_CAP_GLSL:
      return 1;
   case PIPE_CAP_SM3:
      return 1;
   case PIPE_CAP_ANISOTROPIC_FILTER:
      return 0;
   case PIPE_CAP_POINT_SPRITE:
      return 1;
   case PIPE_CAP_MAX_RENDER_TARGETS:
      return PIPE_MAX_COLOR_BUFS;
   case PIPE_CAP_OCCLUSION_QUERY:
      return 1;
   case PIPE_CAP_TIMER_QUERY:
      return 0;
   case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
      return 1;
   case PIPE_CAP_TEXTURE_MIRROR_REPEAT:
      return 1;
   case PIPE_CAP_TEXTURE_SHADOW_MAP:
      return 1;
   case PIPE_CAP_TEXTURE_SWIZZLE:
      return 1;
   case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
      return LP_MAX_TEXTURE_2D_LEVELS;
   case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
      return LP_MAX_TEXTURE_3D_LEVELS;
   case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
      return LP_MAX_TEXTURE_2D_LEVELS;
   case PIPE_CAP_BLEND_EQUATION_SEPARATE:
      return 1;
   case PIPE_CAP_INDEP_BLEND_ENABLE:
      return 1;
   case PIPE_CAP_INDEP_BLEND_FUNC:
      return 0;
   case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
   case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
      return 1;
   case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
   case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
      return 0;
   case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE:
      return 1;
   case PIPE_CAP_DEPTH_CLAMP:
      return 0;
   default:
      return 0;
   }
}

static int
llvmpipe_get_shader_param(struct pipe_screen *screen, unsigned shader, enum pipe_shader_cap param)
{
   switch(shader)
   {
   case PIPE_SHADER_FRAGMENT:
      return tgsi_exec_get_shader_param(param);
   case PIPE_SHADER_VERTEX:
   case PIPE_SHADER_GEOMETRY:
      return draw_get_shader_param(shader, param);
   default:
      return 0;
   }
}

static float
llvmpipe_get_paramf(struct pipe_screen *screen, enum pipe_cap param)
{
   switch (param) {
   case PIPE_CAP_MAX_LINE_WIDTH:
      /* fall-through */
   case PIPE_CAP_MAX_LINE_WIDTH_AA:
      return 255.0; /* arbitrary */
   case PIPE_CAP_MAX_POINT_WIDTH:
      /* fall-through */
   case PIPE_CAP_MAX_POINT_WIDTH_AA:
      return 255.0; /* arbitrary */
   case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
      return 16.0; /* not actually signficant at this time */
   case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
      return 16.0; /* arbitrary */
   case PIPE_CAP_GUARD_BAND_LEFT:
   case PIPE_CAP_GUARD_BAND_TOP:
   case PIPE_CAP_GUARD_BAND_RIGHT:
   case PIPE_CAP_GUARD_BAND_BOTTOM:
      return 0.0;
   default:
      assert(0);
      return 0;
   }
}


/**
 * Query format support for creating a texture, drawing surface, etc.
 * \param format  the format to test
 * \param type  one of PIPE_TEXTURE, PIPE_SURFACE
 */
static boolean
llvmpipe_is_format_supported( struct pipe_screen *_screen,
                              enum pipe_format format,
                              enum pipe_texture_target target,
                              unsigned sample_count,
                              unsigned bind,
                              unsigned geom_flags )
{
   struct llvmpipe_screen *screen = llvmpipe_screen(_screen);
   struct sw_winsys *winsys = screen->winsys;
   const struct util_format_description *format_desc;

   format_desc = util_format_description(format);
   if (!format_desc)
      return FALSE;

   assert(target == PIPE_BUFFER ||
          target == PIPE_TEXTURE_1D ||
          target == PIPE_TEXTURE_2D ||
          target == PIPE_TEXTURE_RECT ||
          target == PIPE_TEXTURE_3D ||
          target == PIPE_TEXTURE_CUBE);

   if (sample_count > 1)
      return FALSE;

   if (bind & PIPE_BIND_RENDER_TARGET) {
      if (format_desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS)
         return FALSE;

      if (format_desc->layout != UTIL_FORMAT_LAYOUT_PLAIN)
         return FALSE;

      if (format_desc->block.width != 1 ||
          format_desc->block.height != 1)
         return FALSE;
   }

   if (bind & PIPE_BIND_DISPLAY_TARGET) {
      if(!winsys->is_displaytarget_format_supported(winsys, bind, format))
         return FALSE;
   }

   if (bind & PIPE_BIND_DEPTH_STENCIL) {
      if (format_desc->layout != UTIL_FORMAT_LAYOUT_PLAIN)
         return FALSE;

      if (format_desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS)
         return FALSE;

      /* FIXME: Temporary restriction. See lp_state_fs.c. */
      if (format_desc->block.bits != 32)
         return FALSE;
   }

   if (format_desc->layout == UTIL_FORMAT_LAYOUT_S3TC) {
      return util_format_s3tc_enabled;
   }

   /*
    * Everything else should be supported by u_format.
    */
   return TRUE;
}




static void
llvmpipe_flush_frontbuffer(struct pipe_screen *_screen,
                           struct pipe_surface *surface,
                           void *context_private)
{
   struct llvmpipe_screen *screen = llvmpipe_screen(_screen);
   struct sw_winsys *winsys = screen->winsys;
   struct llvmpipe_resource *texture = llvmpipe_resource(surface->texture);

   assert(texture->dt);
   if (texture->dt)
      winsys->displaytarget_display(winsys, texture->dt, context_private);
}


static void
llvmpipe_destroy_screen( struct pipe_screen *_screen )
{
   struct llvmpipe_screen *screen = llvmpipe_screen(_screen);
   struct sw_winsys *winsys = screen->winsys;

   if (screen->rast)
      lp_rast_destroy(screen->rast);

   lp_jit_screen_cleanup(screen);

   if(winsys->destroy)
      winsys->destroy(winsys);

   pipe_mutex_destroy(screen->rast_mutex);

   FREE(screen);
}




/**
 * Fence reference counting.
 */
static void
llvmpipe_fence_reference(struct pipe_screen *screen,
                         struct pipe_fence_handle **ptr,
                         struct pipe_fence_handle *fence)
{
   struct lp_fence **old = (struct lp_fence **) ptr;
   struct lp_fence *f = (struct lp_fence *) fence;

   lp_fence_reference(old, f);
}


/**
 * Has the fence been executed/finished?
 */
static int
llvmpipe_fence_signalled(struct pipe_screen *screen,
                         struct pipe_fence_handle *fence,
                         unsigned flag)
{
   struct lp_fence *f = (struct lp_fence *) fence;
   return lp_fence_signalled(f);
}


/**
 * Wait for the fence to finish.
 */
static int
llvmpipe_fence_finish(struct pipe_screen *screen,
                      struct pipe_fence_handle *fence_handle,
                      unsigned flag)
{
   struct lp_fence *f = (struct lp_fence *) fence_handle;

   lp_fence_wait(f);
   return 0;
}



/**
 * Create a new pipe_screen object
 * Note: we're not presently subclassing pipe_screen (no llvmpipe_screen).
 */
struct pipe_screen *
llvmpipe_create_screen(struct sw_winsys *winsys)
{
   struct llvmpipe_screen *screen;

#ifdef PIPE_ARCH_X86
   /* require SSE2 due to LLVM PR6960. */
   util_cpu_detect();
   if (!util_cpu_caps.has_sse2)
       return NULL;
#endif

   screen = CALLOC_STRUCT(llvmpipe_screen);

#ifdef DEBUG
   LP_DEBUG = debug_get_flags_option("LP_DEBUG", lp_debug_flags, 0 );
#endif

   LP_PERF = debug_get_flags_option("LP_PERF", lp_perf_flags, 0 );

   if (!screen)
      return NULL;

   screen->winsys = winsys;

   screen->base.destroy = llvmpipe_destroy_screen;

   screen->base.get_name = llvmpipe_get_name;
   screen->base.get_vendor = llvmpipe_get_vendor;
   screen->base.get_param = llvmpipe_get_param;
   screen->base.get_shader_param = llvmpipe_get_shader_param;
   screen->base.get_paramf = llvmpipe_get_paramf;
   screen->base.is_format_supported = llvmpipe_is_format_supported;

   screen->base.context_create = llvmpipe_create_context;
   screen->base.flush_frontbuffer = llvmpipe_flush_frontbuffer;
   screen->base.fence_reference = llvmpipe_fence_reference;
   screen->base.fence_signalled = llvmpipe_fence_signalled;
   screen->base.fence_finish = llvmpipe_fence_finish;

   llvmpipe_init_screen_resource_funcs(&screen->base);

   lp_jit_screen_init(screen);

   screen->num_threads = util_cpu_caps.nr_cpus > 1 ? util_cpu_caps.nr_cpus : 0;
#ifdef PIPE_OS_EMBEDDED
   screen->num_threads = 0;
#endif
   screen->num_threads = debug_get_num_option("LP_NUM_THREADS", screen->num_threads);
   screen->num_threads = MIN2(screen->num_threads, LP_MAX_THREADS);

   screen->rast = lp_rast_create(screen->num_threads);
   if (!screen->rast) {
      lp_jit_screen_cleanup(screen);
      FREE(screen);
      return NULL;
   }
   pipe_mutex_init(screen->rast_mutex);

   util_format_s3tc_init();

   return &screen->base;
}