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 "main/enums.h"
  33 #include "main/formats.h"
  34
  35 #define FILE_DEBUG_FLAG DEBUG_MIPTREE
  36
  37
  38 static GLenum
  39 target_to_target(GLenum target)
  40 {
  41    switch (target) {
  42    case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
  43    case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
  44    case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
  45    case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
  46    case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
  47    case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
  48       return GL_TEXTURE_CUBE_MAP_ARB;
  49    default:
  50       return target;
  51    }
  52 }
  53
  54
  55 static struct intel_mipmap_tree *
  56 intel_miptree_create_internal(struct intel_context *intel,
  57                               GLenum target,
  58                               gl_format format,
  59                               GLenum internal_format,
  60                               GLuint first_level,
  61                               GLuint last_level,
  62                               GLuint width0,
  63                               GLuint height0,
  64                               GLuint depth0, GLuint cpp, GLuint compress_byte,
  65                               uint32_t tiling)
  66 {
  67    GLboolean ok;
  68    struct intel_mipmap_tree *mt = calloc(sizeof(*mt), 1);
  69
  70    DBG("%s target %s format %s level %d..%d <-- %p\n", __FUNCTION__,
  71        _mesa_lookup_enum_by_nr(target),
  72        _mesa_lookup_enum_by_nr(internal_format),
  73        first_level, last_level, mt);
  74
  75    mt->target = target_to_target(target);
  76    mt->format = format;
  77    mt->internal_format = internal_format;
  78    mt->first_level = first_level;
  79    mt->last_level = last_level;
  80    mt->width0 = width0;
  81    mt->height0 = height0;
  82    mt->depth0 = depth0;
  83    mt->cpp = compress_byte ? compress_byte : cpp;
  84    mt->compressed = compress_byte ? 1 : 0;
  85    mt->refcount = 1;
  86
  87 #ifdef I915
  88    if (intel->is_945)
  89       ok = i945_miptree_layout(intel, mt, tiling);
  90    else
  91       ok = i915_miptree_layout(intel, mt, tiling);
  92 #else
  93    ok = brw_miptree_layout(intel, mt, tiling);
  94 #endif
  95
  96    if (!ok) {
  97       free(mt);
  98       DBG("%s not okay - returning NULL\n", __FUNCTION__);
  99       return NULL;
 100    }
 101
 102    return mt;
 103 }
 104
 105
 106 struct intel_mipmap_tree *
 107 intel_miptree_create(struct intel_context *intel,
 108                      GLenum target,
 109                      gl_format format,
 110                      GLenum base_format,
 111                      GLenum internal_format,
 112                      GLuint first_level,
 113                      GLuint last_level,
 114                      GLuint width0,
 115                      GLuint height0,
 116                      GLuint depth0, GLuint cpp, GLuint compress_byte,
 117                      GLboolean expect_accelerated_upload)
 118 {
 119    struct intel_mipmap_tree *mt;
 120    uint32_t tiling = I915_TILING_NONE;
 121
 122    if (intel->use_texture_tiling && compress_byte == 0) {
 123       if (intel->gen >= 4 &&
 124           (base_format == GL_DEPTH_COMPONENT ||
 125            base_format == GL_DEPTH_STENCIL_EXT))
 126          tiling = I915_TILING_Y;
 127       else if (width0 >= 64)
 128          tiling = I915_TILING_X;
 129    }
 130
 131    mt = intel_miptree_create_internal(intel, target, format, internal_format,
 132                                       first_level, last_level, width0,
 133                                       height0, depth0, cpp, compress_byte,
 134                                       tiling);
 135    /*
 136     * pitch == 0 || height == 0  indicates the null texture
 137     */
 138    if (!mt || !mt->total_height) {
 139       free(mt);
 140       return NULL;
 141    }
 142
 143    mt->region = intel_region_alloc(intel->intelScreen,
 144                                    tiling,
 145                                    mt->cpp,
 146                                    mt->total_width,
 147                                    mt->total_height,
 148                                    expect_accelerated_upload);
 149
 150    if (!mt->region) {
 151        free(mt);
 152        return NULL;
 153    }
 154
 155    return mt;
 156 }
 157
 158
 159 struct intel_mipmap_tree *
 160 intel_miptree_create_for_region(struct intel_context *intel,
 161                                 GLenum target,
 162                                 gl_format format,
 163                                 GLenum internal_format,
 164                                 struct intel_region *region,
 165                                 GLuint depth0,
 166                                 GLuint compress_byte)
 167 {
 168    struct intel_mipmap_tree *mt;
 169
 170    mt = intel_miptree_create_internal(intel, target, format, internal_format,
 171                                       0, 0,
 172                                       region->width, region->height, 1,
 173                                       region->cpp, compress_byte,
 174                                       I915_TILING_NONE);
 175    if (!mt)
 176       return mt;
 177
 178    intel_region_reference(&mt->region, region);
 179
 180    return mt;
 181 }
 182
 183 void
 184 intel_miptree_reference(struct intel_mipmap_tree **dst,
 185                         struct intel_mipmap_tree *src)
 186 {
 187    src->refcount++;
 188    *dst = src;
 189    DBG("%s %p refcount now %d\n", __FUNCTION__, src, src->refcount);
 190 }
 191
 192
 193 void
 194 intel_miptree_release(struct intel_context *intel,
 195                       struct intel_mipmap_tree **mt)
 196 {
 197    if (!*mt)
 198       return;
 199
 200    DBG("%s %p refcount will be %d\n", __FUNCTION__, *mt, (*mt)->refcount - 1);
 201    if (--(*mt)->refcount <= 0) {
 202       GLuint i;
 203
 204       DBG("%s deleting %p\n", __FUNCTION__, *mt);
 205
 206       intel_region_release(&((*mt)->region));
 207       intel_region_release(&((*mt)->hiz_region));
 208
 209       for (i = 0; i < MAX_TEXTURE_LEVELS; i++) {
 210          free((*mt)->level[i].x_offset);
 211          free((*mt)->level[i].y_offset);
 212       }
 213
 214       free(*mt);
 215    }
 216    *mt = NULL;
 217 }
 218
 219
 220 /**
 221  * Can the image be pulled into a unified mipmap tree?  This mirrors
 222  * the completeness test in a lot of ways.
 223  *
 224  * Not sure whether I want to pass gl_texture_image here.
 225  */
 226 GLboolean
 227 intel_miptree_match_image(struct intel_mipmap_tree *mt,
 228                           struct gl_texture_image *image)
 229 {
 230    GLboolean isCompressed = _mesa_is_format_compressed(image->TexFormat);
 231    struct intel_texture_image *intelImage = intel_texture_image(image);
 232    GLuint level = intelImage->level;
 233
 234    /* Images with borders are never pulled into mipmap trees. */
 235    if (image->Border)
 236       return GL_FALSE;
 237
 238    if (image->InternalFormat != mt->internal_format ||
 239        isCompressed != mt->compressed)
 240       return GL_FALSE;
 241
 242    if (!isCompressed &&
 243        !mt->compressed &&
 244        _mesa_get_format_bytes(image->TexFormat) != mt->cpp)
 245       return GL_FALSE;
 246
 247    /* Test image dimensions against the base level image adjusted for
 248     * minification.  This will also catch images not present in the
 249     * tree, changed targets, etc.
 250     */
 251    if (image->Width != mt->level[level].width ||
 252        image->Height != mt->level[level].height ||
 253        image->Depth != mt->level[level].depth)
 254       return GL_FALSE;
 255
 256    return GL_TRUE;
 257 }
 258
 259
 260 void
 261 intel_miptree_set_level_info(struct intel_mipmap_tree *mt,
 262                              GLuint level,
 263                              GLuint nr_images,
 264                              GLuint x, GLuint y,
 265                              GLuint w, GLuint h, GLuint d)
 266 {
 267    mt->level[level].width = w;
 268    mt->level[level].height = h;
 269    mt->level[level].depth = d;
 270    mt->level[level].level_x = x;
 271    mt->level[level].level_y = y;
 272    mt->level[level].nr_images = nr_images;
 273
 274    DBG("%s level %d size: %d,%d,%d offset %d,%d\n", __FUNCTION__,
 275        level, w, h, d, x, y);
 276
 277    assert(nr_images);
 278    assert(!mt->level[level].x_offset);
 279
 280    mt->level[level].x_offset = malloc(nr_images * sizeof(GLuint));
 281    mt->level[level].x_offset[0] = mt->level[level].level_x;
 282    mt->level[level].y_offset = malloc(nr_images * sizeof(GLuint));
 283    mt->level[level].y_offset[0] = mt->level[level].level_y;
 284 }
 285
 286
 287 void
 288 intel_miptree_set_image_offset(struct intel_mipmap_tree *mt,
 289                                GLuint level, GLuint img,
 290                                GLuint x, GLuint y)
 291 {
 292    if (img == 0 && level == 0)
 293       assert(x == 0 && y == 0);
 294
 295    assert(img < mt->level[level].nr_images);
 296
 297    mt->level[level].x_offset[img] = mt->level[level].level_x + x;
 298    mt->level[level].y_offset[img] = mt->level[level].level_y + y;
 299
 300    DBG("%s level %d img %d pos %d,%d\n",
 301        __FUNCTION__, level, img,
 302        mt->level[level].x_offset[img], mt->level[level].y_offset[img]);
 303 }
 304
 305
 306 void
 307 intel_miptree_get_image_offset(struct intel_mipmap_tree *mt,
 308                                GLuint level, GLuint face, GLuint depth,
 309                                GLuint *x, GLuint *y)
 310 {
 311    if (mt->target == GL_TEXTURE_CUBE_MAP_ARB) {
 312       *x = mt->level[level].x_offset[face];
 313       *y = mt->level[level].y_offset[face];
 314    } else if (mt->target == GL_TEXTURE_3D) {
 315       *x = mt->level[level].x_offset[depth];
 316       *y = mt->level[level].y_offset[depth];
 317    } else {
 318       *x = mt->level[level].x_offset[0];
 319       *y = mt->level[level].y_offset[0];
 320    }
 321 }
 322
 323 /**
 324  * Map a teximage in a mipmap tree.
 325  * \param row_stride  returns row stride in bytes
 326  * \param image_stride  returns image stride in bytes (for 3D textures).
 327  * \param image_offsets pointer to array of pixel offsets from the returned
 328  *        pointer to each depth image
 329  * \return address of mapping
 330  */
 331 GLubyte *
 332 intel_miptree_image_map(struct intel_context * intel,
 333                         struct intel_mipmap_tree * mt,
 334                         GLuint face,
 335                         GLuint level,
 336                         GLuint * row_stride, GLuint * image_offsets)
 337 {
 338    GLuint x, y;
 339
 340    if (row_stride)
 341       *row_stride = mt->region->pitch * mt->cpp;
 342
 343    if (mt->target == GL_TEXTURE_3D) {
 344       int i;
 345
 346       for (i = 0; i < mt->level[level].depth; i++) {
 347
 348          intel_miptree_get_image_offset(mt, level, face, i,
 349                                         &x, &y);
 350          image_offsets[i] = x + y * mt->region->pitch;
 351       }
 352
 353       DBG("%s \n", __FUNCTION__);
 354
 355       return intel_region_map(intel, mt->region);
 356    } else {
 357       assert(mt->level[level].depth == 1);
 358       intel_miptree_get_image_offset(mt, level, face, 0,
 359                                      &x, &y);
 360       image_offsets[0] = 0;
 361
 362       DBG("%s: (%d,%d) -> (%d, %d)/%d\n",
 363           __FUNCTION__, face, level, x, y, mt->region->pitch * mt->cpp);
 364
 365       return intel_region_map(intel, mt->region) +
 366          (x + y * mt->region->pitch) * mt->cpp;
 367    }
 368 }
 369
 370
 371 void
 372 intel_miptree_image_unmap(struct intel_context *intel,
 373                           struct intel_mipmap_tree *mt)
 374 {
 375    DBG("%s\n", __FUNCTION__);
 376    intel_region_unmap(intel, mt->region);
 377 }
 378
 379
 380 /**
 381  * Upload data for a particular image.
 382  */
 383 void
 384 intel_miptree_image_data(struct intel_context *intel,
 385                          struct intel_mipmap_tree *dst,
 386                          GLuint face,
 387                          GLuint level,
 388                          void *src,
 389                          GLuint src_row_pitch,
 390                          GLuint src_image_pitch)
 391 {
 392    const GLuint depth = dst->level[level].depth;
 393    GLuint i;
 394
 395    for (i = 0; i < depth; i++) {
 396       GLuint dst_x, dst_y, height, width;
 397
 398       intel_miptree_get_image_offset(dst, level, face, i, &dst_x, &dst_y);
 399
 400       height = dst->level[level].height;
 401       width = dst->level[level].width;
 402       if (dst->compressed) {
 403          unsigned int align_w, align_h;
 404
 405          intel_get_texture_alignment_unit(dst->format, &align_w, &align_h);
 406          height = (height + align_h - 1) / align_h;
 407          width = ALIGN(width, align_w);
 408       }
 409
 410       DBG("%s: %d/%d %p/%d -> (%d, %d)/%d (%d, %d)\n",
 411           __FUNCTION__, face, level,
 412           src, src_row_pitch * dst->cpp,
 413           dst_x, dst_y, dst->region->pitch * dst->cpp,
 414           width, height);
 415
 416       intel_region_data(intel,
 417                         dst->region, 0, dst_x, dst_y,
 418                         src,
 419                         src_row_pitch,
 420                         0, 0,                             /* source x, y */
 421                         width, height);
 422
 423       src = (char *)src + src_image_pitch * dst->cpp;
 424    }
 425 }
 426
 427
 428 /**
 429  * Copy mipmap image between trees
 430  */
 431 void
 432 intel_miptree_image_copy(struct intel_context *intel,
 433                          struct intel_mipmap_tree *dst,
 434                          GLuint face, GLuint level,
 435                          struct intel_mipmap_tree *src)
 436 {
 437    GLuint width = src->level[level].width;
 438    GLuint height = src->level[level].height;
 439    GLuint depth = src->level[level].depth;
 440    GLuint src_x, src_y, dst_x, dst_y;
 441    GLuint i;
 442    GLboolean success;
 443
 444    if (dst->compressed) {
 445        GLuint align_w, align_h;
 446
 447        intel_get_texture_alignment_unit(dst->format, &align_w, &align_h);
 448        height = (height + 3) / 4;
 449        width = ALIGN(width, align_w);
 450    }
 451
 452    intel_prepare_render(intel);
 453
 454    for (i = 0; i < depth; i++) {
 455       intel_miptree_get_image_offset(src, level, face, i, &src_x, &src_y);
 456       intel_miptree_get_image_offset(dst, level, face, i, &dst_x, &dst_y);
 457       success = intel_region_copy(intel,
 458                                   dst->region, 0, dst_x, dst_y,
 459                                   src->region, 0, src_x, src_y,
 460                                   width, height, GL_FALSE,
 461                                   GL_COPY);
 462       if (!success) {
 463          GLubyte *src_ptr, *dst_ptr;
 464
 465          src_ptr = intel_region_map(intel, src->region);
 466          dst_ptr = intel_region_map(intel, dst->region);
 467
 468          _mesa_copy_rect(dst_ptr,
 469                          dst->cpp,
 470                          dst->region->pitch,
 471                          dst_x, dst_y, width, height,
 472                          src_ptr,
 473                          src->region->pitch,
 474                          src_x, src_y);
 475          intel_region_unmap(intel, src->region);
 476          intel_region_unmap(intel, dst->region);
 477       }
 478    }
 479 }