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