src/mesa/drivers/dri/i965/brw_wm_surface_state.c

   1 /*
   2  Copyright (C) Intel Corp.  2006.  All Rights Reserved.
   3  Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
   4  develop this 3D driver.
   5
   6  Permission is hereby granted, free of charge, to any person obtaining
   7  a copy of this software and associated documentation files (the
   8  "Software"), to deal in the Software without restriction, including
   9  without limitation the rights to use, copy, modify, merge, publish,
  10  distribute, sublicense, and/or sell copies of the Software, and to
  11  permit persons to whom the Software is furnished to do so, subject to
  12  the following conditions:
  13
  14  The above copyright notice and this permission notice (including the
  15  next paragraph) shall be included in all copies or substantial
  16  portions of the Software.
  17
  18  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  19  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  21  IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  22  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  23  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  24  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25
  26  **********************************************************************/
  27  /*
  28   * Authors:
  29   *   Keith Whitwell <keith@tungstengraphics.com>
  30   */
  31
  32
  33 #include "mtypes.h"
  34 #include "texformat.h"
  35 #include "texstore.h"
  36
  37 #include "intel_mipmap_tree.h"
  38 #include "intel_batchbuffer.h"
  39 #include "intel_tex.h"
  40
  41
  42 #include "brw_context.h"
  43 #include "brw_state.h"
  44 #include "brw_defines.h"
  45
  46
  47 static GLuint translate_tex_target( GLenum target )
  48 {
  49    switch (target) {
  50    case GL_TEXTURE_1D:
  51       return BRW_SURFACE_1D;
  52
  53    case GL_TEXTURE_RECTANGLE_NV:
  54       return BRW_SURFACE_2D;
  55
  56    case GL_TEXTURE_2D:
  57       return BRW_SURFACE_2D;
  58
  59    case GL_TEXTURE_3D:
  60       return BRW_SURFACE_3D;
  61
  62    case GL_TEXTURE_CUBE_MAP:
  63       return BRW_SURFACE_CUBE;
  64
  65    default:
  66       assert(0);
  67       return 0;
  68    }
  69 }
  70
  71
  72 static GLuint translate_tex_format( GLuint mesa_format, GLenum depth_mode )
  73 {
  74    switch( mesa_format ) {
  75    case MESA_FORMAT_L8:
  76       return BRW_SURFACEFORMAT_L8_UNORM;
  77
  78    case MESA_FORMAT_I8:
  79       return BRW_SURFACEFORMAT_I8_UNORM;
  80
  81    case MESA_FORMAT_A8:
  82       return BRW_SURFACEFORMAT_A8_UNORM;
  83
  84    case MESA_FORMAT_AL88:
  85       return BRW_SURFACEFORMAT_L8A8_UNORM;
  86
  87    case MESA_FORMAT_RGB888:
  88       assert(0);                /* not supported for sampling */
  89       return BRW_SURFACEFORMAT_R8G8B8_UNORM;
  90
  91    case MESA_FORMAT_ARGB8888:
  92       return BRW_SURFACEFORMAT_B8G8R8A8_UNORM;
  93
  94    case MESA_FORMAT_RGBA8888_REV:
  95       return BRW_SURFACEFORMAT_R8G8B8A8_UNORM;
  96
  97    case MESA_FORMAT_RGB565:
  98       return BRW_SURFACEFORMAT_B5G6R5_UNORM;
  99
 100    case MESA_FORMAT_ARGB1555:
 101       return BRW_SURFACEFORMAT_B5G5R5A1_UNORM;
 102
 103    case MESA_FORMAT_ARGB4444:
 104       return BRW_SURFACEFORMAT_B4G4R4A4_UNORM;
 105
 106    case MESA_FORMAT_YCBCR_REV:
 107       return BRW_SURFACEFORMAT_YCRCB_NORMAL;
 108
 109    case MESA_FORMAT_YCBCR:
 110       return BRW_SURFACEFORMAT_YCRCB_SWAPUVY;
 111
 112    case MESA_FORMAT_RGB_FXT1:
 113    case MESA_FORMAT_RGBA_FXT1:
 114       return BRW_SURFACEFORMAT_FXT1;
 115
 116    case MESA_FORMAT_Z16:
 117       if (depth_mode == GL_INTENSITY)
 118           return BRW_SURFACEFORMAT_I16_UNORM;
 119       else if (depth_mode == GL_ALPHA)
 120           return BRW_SURFACEFORMAT_A16_UNORM;
 121       else
 122           return BRW_SURFACEFORMAT_L16_UNORM;
 123
 124    case MESA_FORMAT_RGB_DXT1:
 125        return BRW_SURFACEFORMAT_DXT1_RGB;
 126
 127    case MESA_FORMAT_RGBA_DXT1:
 128        return BRW_SURFACEFORMAT_BC1_UNORM;
 129
 130    case MESA_FORMAT_RGBA_DXT3:
 131        return BRW_SURFACEFORMAT_BC2_UNORM;
 132
 133    case MESA_FORMAT_RGBA_DXT5:
 134        return BRW_SURFACEFORMAT_BC3_UNORM;
 135
 136    case MESA_FORMAT_SRGBA8:
 137       return BRW_SURFACEFORMAT_R8G8B8A8_UNORM_SRGB;
 138    case MESA_FORMAT_SRGB_DXT1:
 139       return BRW_SURFACEFORMAT_BC1_UNORM_SRGB;
 140
 141    case MESA_FORMAT_Z24_S8:
 142       return BRW_SURFACEFORMAT_I24X8_UNORM;
 143
 144    default:
 145       assert(0);
 146       return 0;
 147    }
 148 }
 149
 150 struct brw_wm_surface_key {
 151    GLenum target, depthmode;
 152    dri_bo *bo;
 153    GLint format;
 154    GLint first_level, last_level;
 155    GLint width, height, depth;
 156    GLint pitch, cpp;
 157    GLboolean tiled;
 158 };
 159
 160 static dri_bo *
 161 brw_create_texture_surface( struct brw_context *brw,
 162                             struct brw_wm_surface_key *key )
 163 {
 164    struct brw_surface_state surf;
 165    dri_bo *bo;
 166
 167    memset(&surf, 0, sizeof(surf));
 168
 169    surf.ss0.mipmap_layout_mode = BRW_SURFACE_MIPMAPLAYOUT_BELOW;
 170    surf.ss0.surface_type = translate_tex_target(key->target);
 171    surf.ss0.surface_format = translate_tex_format(key->format, key->depthmode);
 172
 173    /* This is ok for all textures with channel width 8bit or less:
 174     */
 175 /*    surf.ss0.data_return_format = BRW_SURFACERETURNFORMAT_S1; */
 176
 177    surf.ss1.base_addr = key->bo->offset; /* reloc */
 178
 179    surf.ss2.mip_count = key->last_level - key->first_level;
 180    surf.ss2.width = key->width - 1;
 181    surf.ss2.height = key->height - 1;
 182
 183    surf.ss3.tile_walk = BRW_TILEWALK_XMAJOR;
 184    surf.ss3.tiled_surface = key->tiled;
 185    surf.ss3.pitch = (key->pitch * key->cpp) - 1;
 186    surf.ss3.depth = key->depth - 1;
 187
 188    surf.ss4.min_lod = 0;
 189
 190    if (key->target == GL_TEXTURE_CUBE_MAP) {
 191       surf.ss0.cube_pos_x = 1;
 192       surf.ss0.cube_pos_y = 1;
 193       surf.ss0.cube_pos_z = 1;
 194       surf.ss0.cube_neg_x = 1;
 195       surf.ss0.cube_neg_y = 1;
 196       surf.ss0.cube_neg_z = 1;
 197    }
 198
 199    bo = brw_upload_cache(&brw->cache, BRW_SS_SURFACE,
 200                          key, sizeof(*key),
 201                          &key->bo, 1,
 202                          &surf, sizeof(surf),
 203                          NULL, NULL);
 204
 205    /* Emit relocation to surface contents */
 206    dri_emit_reloc(bo,
 207                   DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_READ,
 208                   0,
 209                   offsetof(struct brw_surface_state, ss1),
 210                   key->bo);
 211
 212    return bo;
 213 }
 214
 215 static int
 216 brw_update_texture_surface( GLcontext *ctx, GLuint unit )
 217 {
 218    struct brw_context *brw = brw_context(ctx);
 219    struct gl_texture_object *tObj = brw->attribs.Texture->Unit[unit]._Current;
 220    struct intel_texture_object *intelObj = intel_texture_object(tObj);
 221    struct gl_texture_image *firstImage = tObj->Image[0][intelObj->firstLevel];
 222    struct brw_wm_surface_key key;
 223    int ret = 0;
 224
 225    memset(&key, 0, sizeof(key));
 226    key.target = tObj->Target;
 227    key.depthmode = tObj->DepthMode;
 228    key.format = firstImage->TexFormat->MesaFormat;
 229    key.bo = intelObj->mt->region->buffer;
 230    key.first_level = intelObj->firstLevel;
 231    key.last_level = intelObj->lastLevel;
 232    key.width = firstImage->Width;
 233    key.height = firstImage->Height;
 234    key.pitch = intelObj->mt->pitch;
 235    key.cpp = intelObj->mt->cpp;
 236    key.depth = firstImage->Depth;
 237    key.tiled = intelObj->mt->region->tiled;
 238
 239    ret |= dri_bufmgr_check_aperture_space(key.bo);
 240
 241    dri_bo_unreference(brw->wm.surf_bo[unit + MAX_DRAW_BUFFERS]);
 242    brw->wm.surf_bo[unit + MAX_DRAW_BUFFERS] = brw_search_cache(&brw->cache, BRW_SS_SURFACE,
 243                                                 &key, sizeof(key),
 244                                                 &key.bo, 1,
 245                                                 NULL);
 246    if (brw->wm.surf_bo[unit + MAX_DRAW_BUFFERS] == NULL) {
 247       brw->wm.surf_bo[unit + MAX_DRAW_BUFFERS] = brw_create_texture_surface(brw, &key);
 248    }
 249
 250    ret |= dri_bufmgr_check_aperture_space(brw->wm.surf_bo[unit + MAX_DRAW_BUFFERS]);
 251    return ret;
 252 }
 253
 254 /**
 255  * Sets up a surface state structure to point at the given region.
 256  * While it is only used for the front/back buffer currently, it should be
 257  * usable for further buffers when doing ARB_draw_buffer support.
 258  */
 259 static int
 260 brw_update_region_surface(struct brw_context *brw, struct intel_region *region,
 261                           unsigned int unit, GLboolean cached)
 262 {
 263    dri_bo *region_bo = NULL;
 264    int ret = 0;
 265    struct {
 266       unsigned int surface_type;
 267       unsigned int surface_format;
 268       unsigned int width, height, cpp;
 269       GLubyte color_mask[4];
 270       GLboolean tiled, color_blend;
 271    } key;
 272
 273    memset(&key, 0, sizeof(key));
 274
 275    if (region != NULL) {
 276       region_bo = region->buffer;
 277
 278       key.surface_type = BRW_SURFACE_2D;
 279       if (region->cpp == 4)
 280          key.surface_format = BRW_SURFACEFORMAT_B8G8R8A8_UNORM;
 281       else
 282          key.surface_format = BRW_SURFACEFORMAT_B5G6R5_UNORM;
 283       key.tiled = region->tiled;
 284       key.width = region->pitch; /* XXX: not really! */
 285       key.height = region->height;
 286       key.cpp = region->cpp;
 287
 288       ret |= dri_bufmgr_check_aperture_space(region->buffer);
 289    } else {
 290       key.surface_type = BRW_SURFACE_NULL;
 291       key.surface_format = BRW_SURFACEFORMAT_B8G8R8A8_UNORM;
 292       key.tiled = 0;
 293       key.width = 1;
 294       key.height = 1;
 295       key.cpp = 4;
 296    }
 297    memcpy(key.color_mask, brw->attribs.Color->ColorMask,
 298           sizeof(key.color_mask));
 299    key.color_blend = (!brw->attribs.Color->_LogicOpEnabled &&
 300                       brw->attribs.Color->BlendEnabled);
 301
 302    dri_bo_unreference(brw->wm.surf_bo[unit]);
 303    brw->wm.surf_bo[unit] = NULL;
 304    if (cached)
 305        brw->wm.surf_bo[unit] = brw_search_cache(&brw->cache, BRW_SS_SURFACE,
 306                &key, sizeof(key),
 307                &region_bo, 1,
 308                NULL);
 309
 310    if (brw->wm.surf_bo[unit] == NULL) {
 311       struct brw_surface_state surf;
 312
 313       memset(&surf, 0, sizeof(surf));
 314
 315       surf.ss0.surface_format = key.surface_format;
 316       surf.ss0.surface_type = key.surface_type;
 317       if (region_bo != NULL)
 318          surf.ss1.base_addr = region_bo->offset; /* reloc */
 319
 320       surf.ss2.width = key.width - 1;
 321       surf.ss2.height = key.height - 1;
 322       surf.ss3.tile_walk = BRW_TILEWALK_XMAJOR;
 323       surf.ss3.tiled_surface = key.tiled;
 324       surf.ss3.pitch = (key.width * key.cpp) - 1;
 325
 326       /* _NEW_COLOR */
 327       surf.ss0.color_blend = key.color_blend;
 328       surf.ss0.writedisable_red =   !key.color_mask[0];
 329       surf.ss0.writedisable_green = !key.color_mask[1];
 330       surf.ss0.writedisable_blue =  !key.color_mask[2];
 331       surf.ss0.writedisable_alpha = !key.color_mask[3];
 332
 333       /* Key size will never match key size for textures, so we're safe. */
 334       brw->wm.surf_bo[unit] = brw_upload_cache(&brw->cache, BRW_SS_SURFACE,
 335                                               &key, sizeof(key),
 336                                                &region_bo, 1,
 337                                                &surf, sizeof(surf),
 338                                                NULL, NULL);
 339       if (region_bo != NULL) {
 340          dri_emit_reloc(brw->wm.surf_bo[unit],
 341                         DRM_BO_FLAG_MEM_TT |
 342                         DRM_BO_FLAG_READ |
 343                         DRM_BO_FLAG_WRITE,
 344                         0,
 345                         offsetof(struct brw_surface_state, ss1),
 346                         region_bo);
 347       }
 348    }
 349
 350    ret |= dri_bufmgr_check_aperture_space(brw->wm.surf_bo[unit]);
 351
 352    return ret;
 353 }
 354
 355
 356 /**
 357  * Constructs the binding table for the WM surface state, which maps unit
 358  * numbers to surface state objects.
 359  */
 360 static dri_bo *
 361 brw_wm_get_binding_table(struct brw_context *brw)
 362 {
 363    dri_bo *bind_bo;
 364
 365    bind_bo = brw_search_cache(&brw->cache, BRW_SS_SURF_BIND,
 366                               NULL, 0,
 367                               brw->wm.surf_bo, brw->wm.nr_surfaces,
 368                               NULL);
 369
 370    if (bind_bo == NULL) {
 371       GLuint data_size = brw->wm.nr_surfaces * sizeof(GLuint);
 372       uint32_t *data = malloc(data_size);
 373       int i;
 374
 375       for (i = 0; i < brw->wm.nr_surfaces; i++)
 376          if (brw->wm.surf_bo[i])
 377             data[i] = brw->wm.surf_bo[i]->offset;
 378          else
 379             data[i] = 0;
 380
 381       bind_bo = brw_upload_cache( &brw->cache, BRW_SS_SURF_BIND,
 382                                   NULL, 0,
 383                                   brw->wm.surf_bo, brw->wm.nr_surfaces,
 384                                   data, data_size,
 385                                   NULL, NULL);
 386
 387       /* Emit binding table relocations to surface state */
 388       for (i = 0; i < BRW_WM_MAX_SURF; i++) {
 389          if (brw->wm.surf_bo[i] != NULL) {
 390             dri_emit_reloc(bind_bo,
 391                            DRM_BO_FLAG_MEM_TT |
 392                            DRM_BO_FLAG_READ |
 393                            DRM_BO_FLAG_WRITE,
 394                            0,
 395                            i * sizeof(GLuint),
 396                            brw->wm.surf_bo[i]);
 397          }
 398       }
 399
 400       free(data);
 401    }
 402
 403    return bind_bo;
 404 }
 405
 406 static int prepare_wm_surfaces(struct brw_context *brw )
 407 {
 408    GLcontext *ctx = &brw->intel.ctx;
 409    struct intel_context *intel = &brw->intel;
 410    GLuint i, ret;
 411
 412    if (brw->state.nr_draw_regions  > 1) {
 413       for (i = 0; i < brw->state.nr_draw_regions; i++) {
 414          ret = brw_update_region_surface(brw, brw->state.draw_regions[i], i,
 415                                          GL_FALSE);
 416          if (ret)
 417             return ret;
 418       }
 419    }else {
 420       ret = brw_update_region_surface(brw, brw->state.draw_regions[0], 0, GL_TRUE);
 421       if (ret)
 422          return ret;
 423    }
 424
 425    brw->wm.nr_surfaces = MAX_DRAW_BUFFERS;
 426
 427    for (i = 0; i < BRW_MAX_TEX_UNIT; i++) {
 428       struct gl_texture_unit *texUnit = &brw->attribs.Texture->Unit[i];
 429
 430       /* _NEW_TEXTURE, BRW_NEW_TEXDATA */
 431       if(texUnit->_ReallyEnabled) {
 432          if (texUnit->_Current == intel->frame_buffer_texobj) {
 433             dri_bo_unreference(brw->wm.surf_bo[i+MAX_DRAW_BUFFERS]);
 434             brw->wm.surf_bo[i+MAX_DRAW_BUFFERS] = brw->wm.surf_bo[0];
 435             dri_bo_reference(brw->wm.surf_bo[i+MAX_DRAW_BUFFERS]);
 436             brw->wm.nr_surfaces = i + MAX_DRAW_BUFFERS + 1;
 437          } else {
 438             ret = brw_update_texture_surface(ctx, i);
 439             brw->wm.nr_surfaces = i + MAX_DRAW_BUFFERS + 1;
 440
 441             if (ret)
 442                return ret;
 443          }
 444       } else {
 445          dri_bo_unreference(brw->wm.surf_bo[i+MAX_DRAW_BUFFERS]);
 446          brw->wm.surf_bo[i+MAX_DRAW_BUFFERS] = NULL;
 447       }
 448
 449    }
 450
 451    dri_bo_unreference(brw->wm.bind_bo);
 452    brw->wm.bind_bo = brw_wm_get_binding_table(brw);
 453
 454    return dri_bufmgr_check_aperture_space(brw->wm.bind_bo);
 455 }
 456
 457
 458 const struct brw_tracked_state brw_wm_surfaces = {
 459    .dirty = {
 460       .mesa = _NEW_COLOR | _NEW_TEXTURE | _NEW_BUFFERS,
 461       .brw = BRW_NEW_CONTEXT,
 462       .cache = 0
 463    },
 464    .prepare = prepare_wm_surfaces,
 465 };
 466
 467
 468