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->depth0 = depth0;
  86    mt->cpp = compress_byte ? compress_byte : _mesa_get_format_bytes(mt->format);
  87    mt->compressed = compress_byte ? 1 : 0;
  88    mt->refcount = 1;
  89
  90 #ifdef I915
  91    (void) intel;
  92    if (intel->is_945)
  93       i945_miptree_layout(mt);
  94    else
  95       i915_miptree_layout(mt);
  96 #else
  97    brw_miptree_layout(intel, mt);
  98 #endif
  99
 100    return mt;
 101 }
 102
 103
 104 struct intel_mipmap_tree *
 105 intel_miptree_create(struct intel_context *intel,
 106                      GLenum target,
 107                      gl_format format,
 108                      GLuint first_level,
 109                      GLuint last_level,
 110                      GLuint width0,
 111                      GLuint height0,
 112                      GLuint depth0,
 113                      bool expect_accelerated_upload)
 114 {
 115    struct intel_mipmap_tree *mt;
 116    uint32_t tiling = I915_TILING_NONE;
 117    GLenum base_format = _mesa_get_format_base_format(format);
 118
 119    if (intel->use_texture_tiling && !_mesa_is_format_compressed(format)) {
 120       if (intel->gen >= 4 &&
 121           (base_format == GL_DEPTH_COMPONENT ||
 122            base_format == GL_DEPTH_STENCIL_EXT))
 123          tiling = I915_TILING_Y;
 124       else if (width0 >= 64)
 125          tiling = I915_TILING_X;
 126    }
 127
 128    mt = intel_miptree_create_internal(intel, target, format,
 129                                       first_level, last_level, width0,
 130                                       height0, depth0);
 131    /*
 132     * pitch == 0 || height == 0  indicates the null texture
 133     */
 134    if (!mt || !mt->total_width || !mt->total_height) {
 135       free(mt);
 136       return NULL;
 137    }
 138
 139    mt->region = intel_region_alloc(intel->intelScreen,
 140                                    tiling,
 141                                    mt->cpp,
 142                                    mt->total_width,
 143                                    mt->total_height,
 144                                    expect_accelerated_upload);
 145
 146    if (!mt->region) {
 147        free(mt);
 148        return NULL;
 149    }
 150
 151    return mt;
 152 }
 153
 154
 155 struct intel_mipmap_tree *
 156 intel_miptree_create_for_region(struct intel_context *intel,
 157                                 GLenum target,
 158                                 gl_format format,
 159                                 struct intel_region *region)
 160 {
 161    struct intel_mipmap_tree *mt;
 162
 163    mt = intel_miptree_create_internal(intel, target, format,
 164                                       0, 0,
 165                                       region->width, region->height, 1);
 166    if (!mt)
 167       return mt;
 168
 169    intel_region_reference(&mt->region, region);
 170
 171    return mt;
 172 }
 173
 174 void
 175 intel_miptree_reference(struct intel_mipmap_tree **dst,
 176                         struct intel_mipmap_tree *src)
 177 {
 178    if (*dst == src)
 179       return;
 180
 181    intel_miptree_release(dst);
 182
 183    if (src) {
 184       src->refcount++;
 185       DBG("%s %p refcount now %d\n", __FUNCTION__, src, src->refcount);
 186    }
 187
 188    *dst = src;
 189 }
 190
 191
 192 void
 193 intel_miptree_release(struct intel_mipmap_tree **mt)
 194 {
 195    if (!*mt)
 196       return;
 197
 198    DBG("%s %p refcount will be %d\n", __FUNCTION__, *mt, (*mt)->refcount - 1);
 199    if (--(*mt)->refcount <= 0) {
 200       GLuint i;
 201
 202       DBG("%s deleting %p\n", __FUNCTION__, *mt);
 203
 204       intel_region_release(&((*mt)->region));
 205       intel_region_release(&((*mt)->hiz_region));
 206
 207       for (i = 0; i < MAX_TEXTURE_LEVELS; i++) {
 208          free((*mt)->level[i].x_offset);
 209          free((*mt)->level[i].y_offset);
 210       }
 211
 212       free(*mt);
 213    }
 214    *mt = NULL;
 215 }
 216
 217 void
 218 intel_miptree_get_dimensions_for_image(struct gl_texture_image *image,
 219                                        int *width, int *height, int *depth)
 220 {
 221    switch (image->TexObject->Target) {
 222    case GL_TEXTURE_1D_ARRAY:
 223       *width = image->Width;
 224       *height = 1;
 225       *depth = image->Height;
 226       break;
 227    default:
 228       *width = image->Width;
 229       *height = image->Height;
 230       *depth = image->Depth;
 231       break;
 232    }
 233 }
 234
 235 /**
 236  * Can the image be pulled into a unified mipmap tree?  This mirrors
 237  * the completeness test in a lot of ways.
 238  *
 239  * Not sure whether I want to pass gl_texture_image here.
 240  */
 241 bool
 242 intel_miptree_match_image(struct intel_mipmap_tree *mt,
 243                           struct gl_texture_image *image)
 244 {
 245    struct intel_texture_image *intelImage = intel_texture_image(image);
 246    GLuint level = intelImage->base.Base.Level;
 247    int width, height, depth;
 248
 249    if (image->TexFormat != mt->format)
 250       return false;
 251
 252    intel_miptree_get_dimensions_for_image(image, &width, &height, &depth);
 253
 254    /* Test image dimensions against the base level image adjusted for
 255     * minification.  This will also catch images not present in the
 256     * tree, changed targets, etc.
 257     */
 258    if (width != mt->level[level].width ||
 259        height != mt->level[level].height ||
 260        depth != mt->level[level].depth)
 261       return false;
 262
 263    return true;
 264 }
 265
 266
 267 void
 268 intel_miptree_set_level_info(struct intel_mipmap_tree *mt,
 269                              GLuint level,
 270                              GLuint nr_images,
 271                              GLuint x, GLuint y,
 272                              GLuint w, GLuint h, GLuint d)
 273 {
 274    mt->level[level].width = w;
 275    mt->level[level].height = h;
 276    mt->level[level].depth = d;
 277    mt->level[level].level_x = x;
 278    mt->level[level].level_y = y;
 279    mt->level[level].nr_images = nr_images;
 280
 281    DBG("%s level %d size: %d,%d,%d offset %d,%d\n", __FUNCTION__,
 282        level, w, h, d, x, y);
 283
 284    assert(nr_images);
 285    assert(!mt->level[level].x_offset);
 286
 287    mt->level[level].x_offset = malloc(nr_images * sizeof(GLuint));
 288    mt->level[level].x_offset[0] = mt->level[level].level_x;
 289    mt->level[level].y_offset = malloc(nr_images * sizeof(GLuint));
 290    mt->level[level].y_offset[0] = mt->level[level].level_y;
 291 }
 292
 293
 294 void
 295 intel_miptree_set_image_offset(struct intel_mipmap_tree *mt,
 296                                GLuint level, GLuint img,
 297                                GLuint x, GLuint y)
 298 {
 299    if (img == 0 && level == 0)
 300       assert(x == 0 && y == 0);
 301
 302    assert(img < mt->level[level].nr_images);
 303
 304    mt->level[level].x_offset[img] = mt->level[level].level_x + x;
 305    mt->level[level].y_offset[img] = mt->level[level].level_y + y;
 306
 307    DBG("%s level %d img %d pos %d,%d\n",
 308        __FUNCTION__, level, img,
 309        mt->level[level].x_offset[img], mt->level[level].y_offset[img]);
 310 }
 311
 312
 313 void
 314 intel_miptree_get_image_offset(struct intel_mipmap_tree *mt,
 315                                GLuint level, GLuint face, GLuint depth,
 316                                GLuint *x, GLuint *y)
 317 {
 318    switch (mt->target) {
 319    case GL_TEXTURE_CUBE_MAP_ARB:
 320       *x = mt->level[level].x_offset[face];
 321       *y = mt->level[level].y_offset[face];
 322       break;
 323    case GL_TEXTURE_3D:
 324    case GL_TEXTURE_2D_ARRAY_EXT:
 325    case GL_TEXTURE_1D_ARRAY_EXT:
 326       assert(depth < mt->level[level].nr_images);
 327       *x = mt->level[level].x_offset[depth];
 328       *y = mt->level[level].y_offset[depth];
 329       break;
 330    default:
 331       *x = mt->level[level].x_offset[0];
 332       *y = mt->level[level].y_offset[0];
 333       break;
 334    }
 335 }
 336
 337 /**
 338  * Copies the image's current data to the given miptree, and associates that
 339  * miptree with the image.
 340  */
 341 void
 342 intel_miptree_copy_teximage(struct intel_context *intel,
 343                             struct intel_texture_image *intelImage,
 344                             struct intel_mipmap_tree *dst_mt)
 345 {
 346    struct intel_mipmap_tree *src_mt = intelImage->mt;
 347    int level = intelImage->base.Base.Level;
 348    int face = intelImage->base.Base.Face;
 349    GLuint width = src_mt->level[level].width;
 350    GLuint height = src_mt->level[level].height;
 351    GLuint depth = src_mt->level[level].depth;
 352    int slice;
 353    void *src, *dst;
 354
 355    if (dst_mt->compressed) {
 356       unsigned int align_w, align_h;
 357
 358       intel_get_texture_alignment_unit(intelImage->base.Base.TexFormat,
 359                                        &align_w, &align_h);
 360       height = ALIGN(height, align_h) / align_h;
 361       width = ALIGN(width, align_w);
 362    }
 363
 364    for (slice = 0; slice < depth; slice++) {
 365       unsigned int dst_x, dst_y, src_x, src_y;
 366
 367       intel_miptree_get_image_offset(dst_mt, level, face, slice,
 368                                      &dst_x, &dst_y);
 369
 370       /* Copy potentially with the blitter:
 371        */
 372       intel_miptree_get_image_offset(src_mt, level, face, slice,
 373                                      &src_x, &src_y);
 374
 375       DBG("validate blit mt %p %d,%d/%d -> mt %p %d,%d/%d (%dx%d)\n",
 376           src_mt, src_x, src_y, src_mt->region->pitch * src_mt->region->cpp,
 377           dst_mt, dst_x, dst_y, dst_mt->region->pitch * dst_mt->region->cpp,
 378           width, height);
 379
 380       if (!intelEmitCopyBlit(intel,
 381                              dst_mt->region->cpp,
 382                              src_mt->region->pitch, src_mt->region->bo,
 383                              0, src_mt->region->tiling,
 384                              dst_mt->region->pitch, dst_mt->region->bo,
 385                              0, dst_mt->region->tiling,
 386                              src_x, src_y,
 387                              dst_x, dst_y,
 388                              width, height,
 389                              GL_COPY)) {
 390
 391          fallback_debug("miptree validate blit for %s failed\n",
 392                         _mesa_get_format_name(intelImage->base.Base.TexFormat));
 393          dst = intel_region_map(intel, dst_mt->region, GL_MAP_WRITE_BIT);
 394          src = intel_region_map(intel, src_mt->region, GL_MAP_READ_BIT);
 395
 396          _mesa_copy_rect(dst,
 397                          dst_mt->cpp,
 398                          dst_mt->region->pitch,
 399                          dst_x, dst_y,
 400                          width, height,
 401                          src, src_mt->region->pitch,
 402                          src_x, src_y);
 403
 404          intel_region_unmap(intel, dst_mt->region);
 405          intel_region_unmap(intel, src_mt->region);
 406       }
 407    }
 408
 409    intel_miptree_reference(&intelImage->mt, dst_mt);
 410 }