src/mesa/drivers/dri/intel/intel_mipmap_tree.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * 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, sub license, 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 portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #include "intel_context.h"
  29 #include "intel_mipmap_tree.h"
  30 #include "intel_regions.h"
  31 #include "intel_tex_layout.h"
  32 #include "intel_tex.h"
  33 #include "intel_blit.h"
  34 #include "main/enums.h"
  35 #include "main/formats.h"
  36 #include "main/teximage.h"
  37
  38 #define FILE_DEBUG_FLAG DEBUG_MIPTREE
  39
  40
  41 static GLenum
  42 target_to_target(GLenum target)
  43 {
  44    switch (target) {
  45    case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
  46    case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
  47    case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
  48    case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
  49    case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
  50    case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
  51       return GL_TEXTURE_CUBE_MAP_ARB;
  52    default:
  53       return target;
  54    }
  55 }
  56
  57
  58 static struct intel_mipmap_tree *
  59 intel_miptree_create_internal(struct intel_context *intel,
  60                               GLenum target,
  61                               gl_format format,
  62                               GLuint first_level,
  63                               GLuint last_level,
  64                               GLuint width0,
  65                               GLuint height0,
  66                               GLuint depth0)
  67 {
  68    struct intel_mipmap_tree *mt = calloc(sizeof(*mt), 1);
  69    int compress_byte = 0;
  70
  71    DBG("%s target %s format %s level %d..%d <-- %p\n", __FUNCTION__,
  72        _mesa_lookup_enum_by_nr(target),
  73        _mesa_get_format_name(format),
  74        first_level, last_level, mt);
  75
  76    if (_mesa_is_format_compressed(format))
  77       compress_byte = intel_compressed_num_bytes(format);
  78
  79    mt->target = target_to_target(target);
  80    mt->format = format;
  81    mt->first_level = first_level;
  82    mt->last_level = last_level;
  83    mt->width0 = width0;
  84    mt->height0 = height0;
  85    mt->cpp = compress_byte ? compress_byte : _mesa_get_format_bytes(mt->format);
  86    mt->compressed = compress_byte ? 1 : 0;
  87    mt->refcount = 1;
  88
  89    if (target == GL_TEXTURE_CUBE_MAP) {
  90       assert(depth0 == 1);
  91       mt->depth0 = 6;
  92    } else {
  93       mt->depth0 = depth0;
  94    }
  95
  96 #ifdef I915
  97    (void) intel;
  98    if (intel->is_945)
  99       i945_miptree_layout(mt);
 100    else
 101       i915_miptree_layout(mt);
 102 #else
 103    brw_miptree_layout(intel, mt);
 104 #endif
 105
 106    return mt;
 107 }
 108
 109
 110 struct intel_mipmap_tree *
 111 intel_miptree_create(struct intel_context *intel,
 112                      GLenum target,
 113                      gl_format format,
 114                      GLuint first_level,
 115                      GLuint last_level,
 116                      GLuint width0,
 117                      GLuint height0,
 118                      GLuint depth0,
 119                      bool expect_accelerated_upload)
 120 {
 121    struct intel_mipmap_tree *mt;
 122    uint32_t tiling = I915_TILING_NONE;
 123    GLenum base_format = _mesa_get_format_base_format(format);
 124
 125    if (intel->use_texture_tiling && !_mesa_is_format_compressed(format)) {
 126       if (intel->gen >= 4 &&
 127           (base_format == GL_DEPTH_COMPONENT ||
 128            base_format == GL_DEPTH_STENCIL_EXT))
 129          tiling = I915_TILING_Y;
 130       else if (width0 >= 64)
 131          tiling = I915_TILING_X;
 132    }
 133
 134    mt = intel_miptree_create_internal(intel, target, format,
 135                                       first_level, last_level, width0,
 136                                       height0, depth0);
 137    /*
 138     * pitch == 0 || height == 0  indicates the null texture
 139     */
 140    if (!mt || !mt->total_width || !mt->total_height) {
 141       free(mt);
 142       return NULL;
 143    }
 144
 145    mt->region = intel_region_alloc(intel->intelScreen,
 146                                    tiling,
 147                                    mt->cpp,
 148                                    mt->total_width,
 149                                    mt->total_height,
 150                                    expect_accelerated_upload);
 151
 152    if (!mt->region) {
 153        free(mt);
 154        return NULL;
 155    }
 156
 157    return mt;
 158 }
 159
 160
 161 struct intel_mipmap_tree *
 162 intel_miptree_create_for_region(struct intel_context *intel,
 163                                 GLenum target,
 164                                 gl_format format,
 165                                 struct intel_region *region)
 166 {
 167    struct intel_mipmap_tree *mt;
 168
 169    mt = intel_miptree_create_internal(intel, target, format,
 170                                       0, 0,
 171                                       region->width, region->height, 1);
 172    if (!mt)
 173       return mt;
 174
 175    intel_region_reference(&mt->region, region);
 176
 177    return mt;
 178 }
 179
 180 struct intel_mipmap_tree*
 181 intel_miptree_create_for_renderbuffer(struct intel_context *intel,
 182                                       gl_format format,
 183                                       uint32_t tiling,
 184                                       uint32_t cpp,
 185                                       uint32_t width,
 186                                       uint32_t height)
 187 {
 188    struct intel_region *region;
 189    struct intel_mipmap_tree *mt;
 190
 191    region = intel_region_alloc(intel->intelScreen,
 192                                tiling, cpp, width, height, true);
 193    if (!region)
 194       return NULL;
 195
 196    mt = intel_miptree_create_for_region(intel, GL_TEXTURE_2D, format, region);
 197    intel_region_release(&region);
 198    return mt;
 199 }
 200
 201 void
 202 intel_miptree_reference(struct intel_mipmap_tree **dst,
 203                         struct intel_mipmap_tree *src)
 204 {
 205    if (*dst == src)
 206       return;
 207
 208    intel_miptree_release(dst);
 209
 210    if (src) {
 211       src->refcount++;
 212       DBG("%s %p refcount now %d\n", __FUNCTION__, src, src->refcount);
 213    }
 214
 215    *dst = src;
 216 }
 217
 218
 219 void
 220 intel_miptree_release(struct intel_mipmap_tree **mt)
 221 {
 222    if (!*mt)
 223       return;
 224
 225    DBG("%s %p refcount will be %d\n", __FUNCTION__, *mt, (*mt)->refcount - 1);
 226    if (--(*mt)->refcount <= 0) {
 227       GLuint i;
 228
 229       DBG("%s deleting %p\n", __FUNCTION__, *mt);
 230
 231       intel_region_release(&((*mt)->region));
 232       intel_region_release(&((*mt)->hiz_region));
 233
 234       for (i = 0; i < MAX_TEXTURE_LEVELS; i++) {
 235          free((*mt)->level[i].slice);
 236       }
 237
 238       free(*mt);
 239    }
 240    *mt = NULL;
 241 }
 242
 243 void
 244 intel_miptree_get_dimensions_for_image(struct gl_texture_image *image,
 245                                        int *width, int *height, int *depth)
 246 {
 247    switch (image->TexObject->Target) {
 248    case GL_TEXTURE_1D_ARRAY:
 249       *width = image->Width;
 250       *height = 1;
 251       *depth = image->Height;
 252       break;
 253    default:
 254       *width = image->Width;
 255       *height = image->Height;
 256       *depth = image->Depth;
 257       break;
 258    }
 259 }
 260
 261 /**
 262  * Can the image be pulled into a unified mipmap tree?  This mirrors
 263  * the completeness test in a lot of ways.
 264  *
 265  * Not sure whether I want to pass gl_texture_image here.
 266  */
 267 bool
 268 intel_miptree_match_image(struct intel_mipmap_tree *mt,
 269                           struct gl_texture_image *image)
 270 {
 271    struct intel_texture_image *intelImage = intel_texture_image(image);
 272    GLuint level = intelImage->base.Base.Level;
 273    int width, height, depth;
 274
 275    if (image->TexFormat != mt->format)
 276       return false;
 277
 278    intel_miptree_get_dimensions_for_image(image, &width, &height, &depth);
 279
 280    /* Test image dimensions against the base level image adjusted for
 281     * minification.  This will also catch images not present in the
 282     * tree, changed targets, etc.
 283     */
 284    if (width != mt->level[level].width ||
 285        height != mt->level[level].height ||
 286        depth != mt->level[level].depth)
 287       return false;
 288
 289    return true;
 290 }
 291
 292
 293 void
 294 intel_miptree_set_level_info(struct intel_mipmap_tree *mt,
 295                              GLuint level,
 296                              GLuint x, GLuint y,
 297                              GLuint w, GLuint h, GLuint d)
 298 {
 299    mt->level[level].width = w;
 300    mt->level[level].height = h;
 301    mt->level[level].depth = d;
 302    mt->level[level].level_x = x;
 303    mt->level[level].level_y = y;
 304
 305    DBG("%s level %d size: %d,%d,%d offset %d,%d\n", __FUNCTION__,
 306        level, w, h, d, x, y);
 307
 308    assert(mt->level[level].slice == NULL);
 309
 310    mt->level[level].slice = malloc(d * sizeof(*mt->level[0].slice));
 311    mt->level[level].slice[0].x_offset = mt->level[level].level_x;
 312    mt->level[level].slice[0].y_offset = mt->level[level].level_y;
 313 }
 314
 315
 316 void
 317 intel_miptree_set_image_offset(struct intel_mipmap_tree *mt,
 318                                GLuint level, GLuint img,
 319                                GLuint x, GLuint y)
 320 {
 321    if (img == 0 && level == 0)
 322       assert(x == 0 && y == 0);
 323
 324    assert(img < mt->level[level].depth);
 325
 326    mt->level[level].slice[img].x_offset = mt->level[level].level_x + x;
 327    mt->level[level].slice[img].y_offset = mt->level[level].level_y + y;
 328
 329    DBG("%s level %d img %d pos %d,%d\n",
 330        __FUNCTION__, level, img,
 331        mt->level[level].slice[img].x_offset,
 332        mt->level[level].slice[img].y_offset);
 333 }
 334
 335
 336 /**
 337  * For cube map textures, either the \c face parameter can be used, of course,
 338  * or the cube face can be interpreted as a depth layer and the \c layer
 339  * parameter used.
 340  */
 341 void
 342 intel_miptree_get_image_offset(struct intel_mipmap_tree *mt,
 343                                GLuint level, GLuint face, GLuint layer,
 344                                GLuint *x, GLuint *y)
 345 {
 346    int slice;
 347
 348    if (face > 0) {
 349       assert(mt->target == GL_TEXTURE_CUBE_MAP);
 350       assert(face < 6);
 351       assert(layer == 0);
 352       slice = face;
 353    } else {
 354       /* This branch may be taken even if the texture target is a cube map. In
 355        * that case, the caller chose to interpret each cube face as a layer.
 356        */
 357       assert(face == 0);
 358       slice = layer;
 359    }
 360
 361    *x = mt->level[level].slice[slice].x_offset;
 362    *y = mt->level[level].slice[slice].y_offset;
 363 }
 364
 365 static void
 366 intel_miptree_copy_slice(struct intel_context *intel,
 367                          struct intel_mipmap_tree *dst_mt,
 368                          struct intel_mipmap_tree *src_mt,
 369                          int level,
 370                          int face,
 371                          int depth)
 372
 373 {
 374    gl_format format = src_mt->format;
 375    uint32_t width = src_mt->level[level].width;
 376    uint32_t height = src_mt->level[level].height;
 377
 378    assert(depth < src_mt->level[level].depth);
 379
 380    if (dst_mt->compressed) {
 381       uint32_t align_w, align_h;
 382       intel_get_texture_alignment_unit(format,
 383                                        &align_w, &align_h);
 384       height = ALIGN(height, align_h) / align_h;
 385       width = ALIGN(width, align_w);
 386    }
 387
 388    uint32_t dst_x, dst_y, src_x, src_y;
 389    intel_miptree_get_image_offset(dst_mt, level, face, depth,
 390                                   &dst_x, &dst_y);
 391    intel_miptree_get_image_offset(src_mt, level, face, depth,
 392                                   &src_x, &src_y);
 393
 394    DBG("validate blit mt %p %d,%d/%d -> mt %p %d,%d/%d (%dx%d)\n",
 395        src_mt, src_x, src_y, src_mt->region->pitch * src_mt->region->cpp,
 396        dst_mt, dst_x, dst_y, dst_mt->region->pitch * dst_mt->region->cpp,
 397        width, height);
 398
 399    if (!intelEmitCopyBlit(intel,
 400                           dst_mt->region->cpp,
 401                           src_mt->region->pitch, src_mt->region->bo,
 402                           0, src_mt->region->tiling,
 403                           dst_mt->region->pitch, dst_mt->region->bo,
 404                           0, dst_mt->region->tiling,
 405                           src_x, src_y,
 406                           dst_x, dst_y,
 407                           width, height,
 408                           GL_COPY)) {
 409
 410       fallback_debug("miptree validate blit for %s failed\n",
 411                      _mesa_get_format_name(format));
 412       void *dst = intel_region_map(intel, dst_mt->region, GL_MAP_WRITE_BIT);
 413       void *src = intel_region_map(intel, src_mt->region, GL_MAP_READ_BIT);
 414
 415       _mesa_copy_rect(dst,
 416                       dst_mt->cpp,
 417                       dst_mt->region->pitch,
 418                       dst_x, dst_y,
 419                       width, height,
 420                       src, src_mt->region->pitch,
 421                       src_x, src_y);
 422
 423       intel_region_unmap(intel, dst_mt->region);
 424       intel_region_unmap(intel, src_mt->region);
 425    }
 426 }
 427
 428 /**
 429  * Copies the image's current data to the given miptree, and associates that
 430  * miptree with the image.
 431  */
 432 void
 433 intel_miptree_copy_teximage(struct intel_context *intel,
 434                             struct intel_texture_image *intelImage,
 435                             struct intel_mipmap_tree *dst_mt)
 436 {
 437    struct intel_mipmap_tree *src_mt = intelImage->mt;
 438    int level = intelImage->base.Base.Level;
 439    int face = intelImage->base.Base.Face;
 440    GLuint depth = intelImage->base.Base.Depth;
 441
 442    for (int slice = 0; slice < depth; slice++) {
 443       intel_miptree_copy_slice(intel, dst_mt, src_mt, level, face, slice);
 444    }
 445
 446    intel_miptree_reference(&intelImage->mt, dst_mt);
 447 }
 448