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_state.h"
  35 #include "svga_cmd.h"
  36
  37
  38 void svga_cleanup_tss_binding(struct svga_context *svga)
  39 {
  40    int i;
  41    unsigned count = MAX2( svga->curr.num_sampler_views,
  42                           svga->state.hw_draw.num_views );
  43
  44    for (i = 0; i < count; i++) {
  45       struct svga_hw_view_state *view = &svga->state.hw_draw.views[i];
  46
  47       svga_sampler_view_reference(&view->v, NULL);
  48       pipe_sampler_view_reference( &svga->curr.sampler_views[i], NULL );
  49       pipe_resource_reference( &view->texture, NULL );
  50
  51       view->dirty = 1;
  52    }
  53 }
  54
  55
  56 struct bind_queue {
  57    struct {
  58       unsigned unit;
  59       struct svga_hw_view_state *view;
  60    } bind[PIPE_MAX_SAMPLERS];
  61
  62    unsigned bind_count;
  63 };
  64
  65
  66 static enum pipe_error
  67 update_tss_binding(struct svga_context *svga,
  68                    unsigned dirty )
  69 {
  70    boolean reemit = svga->rebind.texture_samplers;
  71    unsigned i;
  72    unsigned count = MAX2( svga->curr.num_sampler_views,
  73                           svga->state.hw_draw.num_views );
  74    unsigned min_lod;
  75    unsigned max_lod;
  76
  77    struct bind_queue queue;
  78
  79    queue.bind_count = 0;
  80
  81    for (i = 0; i < count; i++) {
  82       const struct svga_sampler_state *s = svga->curr.sampler[i];
  83       struct svga_hw_view_state *view = &svga->state.hw_draw.views[i];
  84       struct pipe_resource *texture = NULL;
  85
  86       /* get min max lod */
  87       if (svga->curr.sampler_views[i]) {
  88          min_lod = MAX2(s->view_min_lod, 0);
  89          max_lod = MIN2(s->view_max_lod, svga->curr.sampler_views[i]->texture->last_level);
  90          texture = svga->curr.sampler_views[i]->texture;
  91       } else {
  92          min_lod = 0;
  93          max_lod = 0;
  94       }
  95
  96       if (view->texture != texture ||
  97           view->min_lod != min_lod ||
  98           view->max_lod != max_lod) {
  99
 100          svga_sampler_view_reference(&view->v, NULL);
 101          pipe_resource_reference( &view->texture, texture );
 102
 103          view->dirty = TRUE;
 104          view->min_lod = min_lod;
 105          view->max_lod = max_lod;
 106
 107          if (texture)
 108             view->v = svga_get_tex_sampler_view(&svga->pipe,
 109                                                 texture,
 110                                                 min_lod,
 111                                                 max_lod);
 112       }
 113
 114       /*
 115        * We need to reemit non-null texture bindings, even when they are not
 116        * dirty, to ensure that the resources are paged in.
 117        */
 118
 119       if (view->dirty ||
 120           (reemit && view->v)) {
 121          queue.bind[queue.bind_count].unit = i;
 122          queue.bind[queue.bind_count].view = view;
 123          queue.bind_count++;
 124       }
 125       if (!view->dirty && view->v) {
 126          svga_validate_sampler_view(svga, view->v);
 127       }
 128    }
 129
 130    svga->state.hw_draw.num_views = svga->curr.num_sampler_views;
 131
 132    if (queue.bind_count) {
 133       SVGA3dTextureState *ts;
 134
 135       if (SVGA3D_BeginSetTextureState( svga->swc,
 136                                        &ts,
 137                                        queue.bind_count ) != PIPE_OK)
 138          goto fail;
 139
 140       for (i = 0; i < queue.bind_count; i++) {
 141          struct svga_winsys_surface *handle;
 142
 143          ts[i].stage = queue.bind[i].unit;
 144          ts[i].name = SVGA3D_TS_BIND_TEXTURE;
 145
 146          if (queue.bind[i].view->v) {
 147             handle = queue.bind[i].view->v->handle;
 148          }
 149          else {
 150             handle = NULL;
 151          }
 152          svga->swc->surface_relocation(svga->swc,
 153                                        &ts[i].value,
 154                                        handle,
 155                                        SVGA_RELOC_READ);
 156
 157          queue.bind[i].view->dirty = FALSE;
 158       }
 159
 160       SVGA_FIFOCommitAll( svga->swc );
 161    }
 162
 163    svga->rebind.texture_samplers = FALSE;
 164
 165    return 0;
 166
 167 fail:
 168    return PIPE_ERROR_OUT_OF_MEMORY;
 169 }
 170
 171
 172 /*
 173  * Rebind textures.
 174  *
 175  * Similar to update_tss_binding, but without any state checking/update.
 176  *
 177  * Called at the beginning of every new command buffer to ensure that
 178  * non-dirty textures are properly paged-in.
 179  */
 180 enum pipe_error
 181 svga_reemit_tss_bindings(struct svga_context *svga)
 182 {
 183    unsigned i;
 184    enum pipe_error ret;
 185    struct bind_queue queue;
 186
 187    assert(svga->rebind.texture_samplers);
 188
 189    queue.bind_count = 0;
 190
 191    for (i = 0; i < svga->state.hw_draw.num_views; i++) {
 192       struct svga_hw_view_state *view = &svga->state.hw_draw.views[i];
 193
 194       if (view->v) {
 195          queue.bind[queue.bind_count].unit = i;
 196          queue.bind[queue.bind_count].view = view;
 197          queue.bind_count++;
 198       }
 199    }
 200
 201    if (queue.bind_count) {
 202       SVGA3dTextureState *ts;
 203
 204       ret = SVGA3D_BeginSetTextureState(svga->swc,
 205                                         &ts,
 206                                         queue.bind_count);
 207       if (ret != PIPE_OK) {
 208          return ret;
 209       }
 210
 211       for (i = 0; i < queue.bind_count; i++) {
 212          struct svga_winsys_surface *handle;
 213
 214          ts[i].stage = queue.bind[i].unit;
 215          ts[i].name = SVGA3D_TS_BIND_TEXTURE;
 216
 217          assert(queue.bind[i].view->v);
 218          handle = queue.bind[i].view->v->handle;
 219          svga->swc->surface_relocation(svga->swc,
 220                                        &ts[i].value,
 221                                        handle,
 222                                        SVGA_RELOC_READ);
 223       }
 224
 225       SVGA_FIFOCommitAll(svga->swc);
 226    }
 227
 228    svga->rebind.texture_samplers = FALSE;
 229
 230    return PIPE_OK;
 231 }
 232
 233
 234 struct svga_tracked_state svga_hw_tss_binding = {
 235    "texture binding emit",
 236    SVGA_NEW_TEXTURE_BINDING |
 237    SVGA_NEW_SAMPLER,
 238    update_tss_binding
 239 };
 240
 241
 242 /***********************************************************************
 243  */
 244
 245 struct ts_queue {
 246    unsigned ts_count;
 247    SVGA3dTextureState ts[PIPE_MAX_SAMPLERS*SVGA3D_TS_MAX];
 248 };
 249
 250
 251 #define EMIT_TS(svga, unit, val, token, fail)                           \
 252 do {                                                                    \
 253    assert(unit < Elements(svga->state.hw_draw.ts));                     \
 254    assert(SVGA3D_TS_##token < Elements(svga->state.hw_draw.ts[unit]));  \
 255    if (svga->state.hw_draw.ts[unit][SVGA3D_TS_##token] != val) {        \
 256       svga_queue_tss( &queue, unit, SVGA3D_TS_##token, val );           \
 257       svga->state.hw_draw.ts[unit][SVGA3D_TS_##token] = val;            \
 258    }                                                                    \
 259 } while (0)
 260
 261 #define EMIT_TS_FLOAT(svga, unit, fvalue, token, fail)                  \
 262 do {                                                                    \
 263    unsigned val = fui(fvalue);                                          \
 264    assert(unit < Elements(svga->state.hw_draw.ts));                     \
 265    assert(SVGA3D_TS_##token < Elements(svga->state.hw_draw.ts[unit]));  \
 266    if (svga->state.hw_draw.ts[unit][SVGA3D_TS_##token] != val) {        \
 267       svga_queue_tss( &queue, unit, SVGA3D_TS_##token, val );           \
 268       svga->state.hw_draw.ts[unit][SVGA3D_TS_##token] = val;            \
 269    }                                                                    \
 270 } while (0)
 271
 272
 273 static INLINE void
 274 svga_queue_tss( struct ts_queue *q,
 275                 unsigned unit,
 276                 unsigned tss,
 277                 unsigned value )
 278 {
 279    assert(q->ts_count < sizeof(q->ts)/sizeof(q->ts[0]));
 280    q->ts[q->ts_count].stage = unit;
 281    q->ts[q->ts_count].name = tss;
 282    q->ts[q->ts_count].value = value;
 283    q->ts_count++;
 284 }
 285
 286
 287 static enum pipe_error
 288 update_tss(struct svga_context *svga,
 289            unsigned dirty )
 290 {
 291    unsigned i;
 292    struct ts_queue queue;
 293
 294    queue.ts_count = 0;
 295    for (i = 0; i < svga->curr.num_samplers; i++) {
 296       if (svga->curr.sampler[i]) {
 297          const struct svga_sampler_state *curr = svga->curr.sampler[i];
 298
 299          EMIT_TS(svga, i, curr->mipfilter, MIPFILTER, fail);
 300          EMIT_TS(svga, i, curr->min_lod, TEXTURE_MIPMAP_LEVEL, fail);
 301          EMIT_TS(svga, i, curr->magfilter, MAGFILTER, fail);
 302          EMIT_TS(svga, i, curr->minfilter, MINFILTER, fail);
 303          EMIT_TS(svga, i, curr->aniso_level, TEXTURE_ANISOTROPIC_LEVEL, fail);
 304          EMIT_TS_FLOAT(svga, i, curr->lod_bias, TEXTURE_LOD_BIAS, fail);
 305          EMIT_TS(svga, i, curr->addressu, ADDRESSU, fail);
 306          EMIT_TS(svga, i, curr->addressw, ADDRESSW, fail);
 307          EMIT_TS(svga, i, curr->bordercolor, BORDERCOLOR, fail);
 308          // TEXCOORDINDEX -- hopefully not needed
 309
 310          if (svga->curr.tex_flags.flag_1d & (1 << i)) {
 311             EMIT_TS(svga, i, SVGA3D_TEX_ADDRESS_WRAP, ADDRESSV, fail);
 312          }
 313          else
 314             EMIT_TS(svga, i, curr->addressv, ADDRESSV, fail);
 315
 316          if (svga->curr.tex_flags.flag_srgb & (1 << i))
 317             EMIT_TS_FLOAT(svga, i, 2.2f, GAMMA, fail);
 318          else
 319             EMIT_TS_FLOAT(svga, i, 1.0f, GAMMA, fail);
 320
 321       }
 322    }
 323
 324    if (queue.ts_count) {
 325       SVGA3dTextureState *ts;
 326
 327       if (SVGA3D_BeginSetTextureState( svga->swc,
 328                                        &ts,
 329                                        queue.ts_count ) != PIPE_OK)
 330          goto fail;
 331
 332       memcpy( ts,
 333               queue.ts,
 334               queue.ts_count * sizeof queue.ts[0]);
 335
 336       SVGA_FIFOCommitAll( svga->swc );
 337    }
 338
 339    return PIPE_OK;
 340
 341 fail:
 342    /* XXX: need to poison cached hardware state on failure to ensure
 343     * dirty state gets re-emitted.  Fix this by re-instating partial
 344     * FIFOCommit command and only updating cached hw state once the
 345     * initial allocation has succeeded.
 346     */
 347    memset(svga->state.hw_draw.ts, 0xcd, sizeof(svga->state.hw_draw.ts));
 348
 349    return PIPE_ERROR_OUT_OF_MEMORY;
 350 }
 351
 352
 353 struct svga_tracked_state svga_hw_tss = {
 354    "texture state emit",
 355    (SVGA_NEW_SAMPLER |
 356     SVGA_NEW_TEXTURE_FLAGS),
 357    update_tss
 358 };
 359