src/gallium/drivers/svga/svga_state_tss.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 "util/u_inlines.h"
  27 #include "util/u_memory.h"
  28 #include "pipe/p_defines.h"
  29 #include "util/u_math.h"
  30
  31 #include "svga_sampler_view.h"
  32 #include "svga_winsys.h"
  33 #include "svga_context.h"
  34 #include "svga_shader.h"
  35 #include "svga_state.h"
  36 #include "svga_cmd.h"
  37
  38
  39 /**
  40  * Called when tearing down a context to free resources and samplers.
  41  */
  42 void svga_cleanup_tss_binding(struct svga_context *svga)
  43 {
  44    const unsigned shader = PIPE_SHADER_FRAGMENT;
  45    unsigned i;
  46
  47    for (i = 0; i < Elements(svga->state.hw_draw.views); i++) {
  48       struct svga_hw_view_state *view = &svga->state.hw_draw.views[i];
  49       if (view) {
  50          svga_sampler_view_reference(&view->v, NULL);
  51          pipe_sampler_view_release(&svga->pipe,
  52                                    &svga->curr.sampler_views[shader][i]);
  53          pipe_resource_reference(&view->texture, NULL);
  54          view->dirty = TRUE;
  55       }
  56    }
  57 }
  58
  59
  60 struct bind_queue {
  61    struct {
  62       unsigned unit;
  63       struct svga_hw_view_state *view;
  64    } bind[PIPE_MAX_SAMPLERS];
  65
  66    unsigned bind_count;
  67 };
  68
  69
  70 /**
  71  * Update the texture binding for one texture unit.
  72  */
  73 static void
  74 emit_tex_binding_unit(struct svga_context *svga,
  75                       unsigned unit,
  76                       const struct svga_sampler_state *s,
  77                       const struct pipe_sampler_view *sv,
  78                       struct svga_hw_view_state *view,
  79                       boolean reemit,
  80                       struct bind_queue *queue)
  81 {
  82    struct pipe_resource *texture = NULL;
  83    unsigned last_level, min_lod, max_lod;
  84
  85    /* get min max lod */
  86    if (sv && s) {
  87       if (s->mipfilter == SVGA3D_TEX_FILTER_NONE) {
  88          /* just use the base level image */
  89          min_lod = max_lod = sv->u.tex.first_level;
  90       }
  91       else {
  92          last_level = MIN2(sv->u.tex.last_level, sv->texture->last_level);
  93          min_lod = s->view_min_lod + sv->u.tex.first_level;
  94          min_lod = MIN2(min_lod, last_level);
  95          max_lod = MIN2(s->view_max_lod + sv->u.tex.first_level, last_level);
  96       }
  97       texture = sv->texture;
  98    }
  99    else {
 100       min_lod = 0;
 101       max_lod = 0;
 102    }
 103
 104    if (view->texture != texture ||
 105        view->min_lod != min_lod ||
 106        view->max_lod != max_lod) {
 107
 108       svga_sampler_view_reference(&view->v, NULL);
 109       pipe_resource_reference( &view->texture, texture );
 110
 111       view->dirty = TRUE;
 112       view->min_lod = min_lod;
 113       view->max_lod = max_lod;
 114
 115       if (texture) {
 116          view->v = svga_get_tex_sampler_view(&svga->pipe,
 117                                              texture,
 118                                              min_lod,
 119                                              max_lod);
 120       }
 121    }
 122
 123    /*
 124     * We need to reemit non-null texture bindings, even when they are not
 125     * dirty, to ensure that the resources are paged in.
 126     */
 127    if (view->dirty || (reemit && view->v)) {
 128       queue->bind[queue->bind_count].unit = unit;
 129       queue->bind[queue->bind_count].view = view;
 130       queue->bind_count++;
 131    }
 132
 133    if (!view->dirty && view->v) {
 134       svga_validate_sampler_view(svga, view->v);
 135    }
 136 }
 137
 138
 139 static enum pipe_error
 140 update_tss_binding(struct svga_context *svga,
 141                    unsigned dirty )
 142 {
 143    const unsigned shader = PIPE_SHADER_FRAGMENT;
 144    boolean reemit = svga->rebind.flags.texture_samplers;
 145    unsigned i;
 146    unsigned count = MAX2( svga->curr.num_sampler_views[shader],
 147                           svga->state.hw_draw.num_views );
 148
 149    struct bind_queue queue;
 150
 151    if (svga_have_vgpu10(svga))
 152       return PIPE_OK;
 153
 154    queue.bind_count = 0;
 155
 156    for (i = 0; i < count; i++) {
 157       emit_tex_binding_unit(svga, i,
 158                             svga->curr.sampler[shader][i],
 159                             svga->curr.sampler_views[shader][i],
 160                             &svga->state.hw_draw.views[i],
 161                             reemit,
 162                             &queue);
 163    }
 164
 165    svga->state.hw_draw.num_views = svga->curr.num_sampler_views[shader];
 166
 167    /* Polygon stipple */
 168    if (svga->curr.rast->templ.poly_stipple_enable) {
 169       const unsigned unit = svga->state.hw_draw.fs->pstipple_sampler_unit;
 170       emit_tex_binding_unit(svga, unit,
 171                             svga->polygon_stipple.sampler,
 172                             &svga->polygon_stipple.sampler_view->base,
 173                             &svga->state.hw_draw.views[unit],
 174                             reemit,
 175                             &queue);
 176    }
 177
 178    if (queue.bind_count) {
 179       SVGA3dTextureState *ts;
 180
 181       if (SVGA3D_BeginSetTextureState( svga->swc,
 182                                        &ts,
 183                                        queue.bind_count ) != PIPE_OK)
 184          goto fail;
 185
 186       for (i = 0; i < queue.bind_count; i++) {
 187          struct svga_winsys_surface *handle;
 188
 189          ts[i].stage = queue.bind[i].unit;
 190          ts[i].name = SVGA3D_TS_BIND_TEXTURE;
 191
 192          if (queue.bind[i].view->v) {
 193             handle = queue.bind[i].view->v->handle;
 194          }
 195          else {
 196             handle = NULL;
 197          }
 198          svga->swc->surface_relocation(svga->swc,
 199                                        &ts[i].value,
 200                                        NULL,
 201                                        handle,
 202                                        SVGA_RELOC_READ);
 203
 204          queue.bind[i].view->dirty = FALSE;
 205       }
 206
 207       SVGA_FIFOCommitAll( svga->swc );
 208    }
 209
 210    svga->rebind.flags.texture_samplers = FALSE;
 211
 212    return PIPE_OK;
 213
 214 fail:
 215    return PIPE_ERROR_OUT_OF_MEMORY;
 216 }
 217
 218
 219 /*
 220  * Rebind textures.
 221  *
 222  * Similar to update_tss_binding, but without any state checking/update.
 223  *
 224  * Called at the beginning of every new command buffer to ensure that
 225  * non-dirty textures are properly paged-in.
 226  */
 227 enum pipe_error
 228 svga_reemit_tss_bindings(struct svga_context *svga)
 229 {
 230    unsigned i;
 231    enum pipe_error ret;
 232    struct bind_queue queue;
 233
 234    assert(!svga_have_vgpu10(svga));
 235    assert(svga->rebind.flags.texture_samplers);
 236
 237    queue.bind_count = 0;
 238
 239    for (i = 0; i < svga->state.hw_draw.num_views; i++) {
 240       struct svga_hw_view_state *view = &svga->state.hw_draw.views[i];
 241
 242       if (view->v) {
 243          queue.bind[queue.bind_count].unit = i;
 244          queue.bind[queue.bind_count].view = view;
 245          queue.bind_count++;
 246       }
 247    }
 248
 249    /* Polygon stipple */
 250    if (svga->curr.rast->templ.poly_stipple_enable) {
 251       const unsigned unit = svga->state.hw_draw.fs->pstipple_sampler_unit;
 252       struct svga_hw_view_state *view = &svga->state.hw_draw.views[unit];
 253
 254       if (view->v) {
 255          queue.bind[queue.bind_count].unit = unit;
 256          queue.bind[queue.bind_count].view = view;
 257          queue.bind_count++;
 258       }
 259    }
 260
 261    if (queue.bind_count) {
 262       SVGA3dTextureState *ts;
 263
 264       ret = SVGA3D_BeginSetTextureState(svga->swc,
 265                                         &ts,
 266                                         queue.bind_count);
 267       if (ret != PIPE_OK) {
 268          return ret;
 269       }
 270
 271       for (i = 0; i < queue.bind_count; i++) {
 272          struct svga_winsys_surface *handle;
 273
 274          ts[i].stage = queue.bind[i].unit;
 275          ts[i].name = SVGA3D_TS_BIND_TEXTURE;
 276
 277          assert(queue.bind[i].view->v);
 278          handle = queue.bind[i].view->v->handle;
 279          svga->swc->surface_relocation(svga->swc,
 280                                        &ts[i].value,
 281                                        NULL,
 282                                        handle,
 283                                        SVGA_RELOC_READ);
 284       }
 285
 286       SVGA_FIFOCommitAll(svga->swc);
 287    }
 288
 289    svga->rebind.flags.texture_samplers = FALSE;
 290
 291    return PIPE_OK;
 292 }
 293
 294
 295 struct svga_tracked_state svga_hw_tss_binding = {
 296    "texture binding emit",
 297    SVGA_NEW_TEXTURE_BINDING |
 298    SVGA_NEW_STIPPLE |
 299    SVGA_NEW_SAMPLER,
 300    update_tss_binding
 301 };
 302
 303
 304 /***********************************************************************
 305  */
 306
 307 struct ts_queue {
 308    unsigned ts_count;
 309    SVGA3dTextureState ts[PIPE_MAX_SAMPLERS*SVGA3D_TS_MAX];
 310 };
 311
 312
 313 static inline void
 314 svga_queue_tss( struct ts_queue *q,
 315                 unsigned unit,
 316                 unsigned tss,
 317                 unsigned value )
 318 {
 319    assert(q->ts_count < ARRAY_SIZE(q->ts));
 320    q->ts[q->ts_count].stage = unit;
 321    q->ts[q->ts_count].name = tss;
 322    q->ts[q->ts_count].value = value;
 323    q->ts_count++;
 324 }
 325
 326
 327 #define EMIT_TS(svga, unit, val, token)                                 \
 328 do {                                                                    \
 329    assert(unit < Elements(svga->state.hw_draw.ts));                     \
 330    assert(SVGA3D_TS_##token < Elements(svga->state.hw_draw.ts[unit]));  \
 331    if (svga->state.hw_draw.ts[unit][SVGA3D_TS_##token] != val) {        \
 332       svga_queue_tss( queue, unit, SVGA3D_TS_##token, val );            \
 333       svga->state.hw_draw.ts[unit][SVGA3D_TS_##token] = val;            \
 334    }                                                                    \
 335 } while (0)
 336
 337 #define EMIT_TS_FLOAT(svga, unit, fvalue, token)                        \
 338 do {                                                                    \
 339    unsigned val = fui(fvalue);                                          \
 340    assert(unit < Elements(svga->state.hw_draw.ts));                     \
 341    assert(SVGA3D_TS_##token < Elements(svga->state.hw_draw.ts[unit]));  \
 342    if (svga->state.hw_draw.ts[unit][SVGA3D_TS_##token] != val) {        \
 343       svga_queue_tss( queue, unit, SVGA3D_TS_##token, val );            \
 344       svga->state.hw_draw.ts[unit][SVGA3D_TS_##token] = val;            \
 345    }                                                                    \
 346 } while (0)
 347
 348
 349 /**
 350  * Emit texture sampler state (tss) for one texture unit.
 351  */
 352 static void
 353 emit_tss_unit(struct svga_context *svga, unsigned unit,
 354               const struct svga_sampler_state *state,
 355               struct ts_queue *queue)
 356 {
 357    EMIT_TS(svga, unit, state->mipfilter, MIPFILTER);
 358    EMIT_TS(svga, unit, state->min_lod, TEXTURE_MIPMAP_LEVEL);
 359    EMIT_TS(svga, unit, state->magfilter, MAGFILTER);
 360    EMIT_TS(svga, unit, state->minfilter, MINFILTER);
 361    EMIT_TS(svga, unit, state->aniso_level, TEXTURE_ANISOTROPIC_LEVEL);
 362    EMIT_TS_FLOAT(svga, unit, state->lod_bias, TEXTURE_LOD_BIAS);
 363    EMIT_TS(svga, unit, state->addressu, ADDRESSU);
 364    EMIT_TS(svga, unit, state->addressw, ADDRESSW);
 365    EMIT_TS(svga, unit, state->bordercolor, BORDERCOLOR);
 366    // TEXCOORDINDEX -- hopefully not needed
 367
 368    if (svga->curr.tex_flags.flag_1d & (1 << unit))
 369       EMIT_TS(svga, unit, SVGA3D_TEX_ADDRESS_WRAP, ADDRESSV);
 370    else
 371       EMIT_TS(svga, unit, state->addressv, ADDRESSV);
 372
 373    if (svga->curr.tex_flags.flag_srgb & (1 << unit))
 374       EMIT_TS_FLOAT(svga, unit, 2.2f, GAMMA);
 375    else
 376       EMIT_TS_FLOAT(svga, unit, 1.0f, GAMMA);
 377 }
 378
 379 static enum pipe_error
 380 update_tss(struct svga_context *svga,
 381            unsigned dirty )
 382 {
 383    const unsigned shader = PIPE_SHADER_FRAGMENT;
 384    unsigned i;
 385    struct ts_queue queue;
 386
 387    if (svga_have_vgpu10(svga))
 388       return PIPE_OK;
 389
 390    queue.ts_count = 0;
 391    for (i = 0; i < svga->curr.num_samplers[shader]; i++) {
 392       if (svga->curr.sampler[shader][i]) {
 393          const struct svga_sampler_state *curr = svga->curr.sampler[shader][i];
 394          emit_tss_unit(svga, i, curr, &queue);
 395       }
 396    }
 397
 398    /* polygon stipple sampler */
 399    if (svga->curr.rast->templ.poly_stipple_enable) {
 400       emit_tss_unit(svga,
 401                     svga->state.hw_draw.fs->pstipple_sampler_unit,
 402                     svga->polygon_stipple.sampler,
 403                     &queue);
 404    }
 405
 406    if (queue.ts_count) {
 407       SVGA3dTextureState *ts;
 408
 409       if (SVGA3D_BeginSetTextureState( svga->swc,
 410                                        &ts,
 411                                        queue.ts_count ) != PIPE_OK)
 412          goto fail;
 413
 414       memcpy( ts,
 415               queue.ts,
 416               queue.ts_count * sizeof queue.ts[0]);
 417
 418       SVGA_FIFOCommitAll( svga->swc );
 419    }
 420
 421    return PIPE_OK;
 422
 423 fail:
 424    /* XXX: need to poison cached hardware state on failure to ensure
 425     * dirty state gets re-emitted.  Fix this by re-instating partial
 426     * FIFOCommit command and only updating cached hw state once the
 427     * initial allocation has succeeded.
 428     */
 429    memset(svga->state.hw_draw.ts, 0xcd, sizeof(svga->state.hw_draw.ts));
 430
 431    return PIPE_ERROR_OUT_OF_MEMORY;
 432 }
 433
 434
 435 struct svga_tracked_state svga_hw_tss = {
 436    "texture state emit",
 437    (SVGA_NEW_SAMPLER |
 438     SVGA_NEW_STIPPLE |
 439     SVGA_NEW_TEXTURE_FLAGS),
 440    update_tss
 441 };
 442