src/gallium/drivers/ilo/ilo_resource.h

   1 /*
   2  * Mesa 3-D graphics library
   3  *
   4  * Copyright (C) 2012-2013 LunarG, Inc.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included
  14  * in all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors:
  25  *    Chia-I Wu <olv@lunarg.com>
  26  */
  27
  28 #ifndef ILO_RESOURCE_H
  29 #define ILO_RESOURCE_H
  30
  31 #include "intel_winsys.h"
  32
  33 #include "ilo_common.h"
  34
  35 struct ilo_screen;
  36 struct ilo_context;
  37 struct winsys_handle;
  38
  39 /*
  40  * TODO we should have
  41  *
  42  *   ilo_resource, inherited by
  43  *    - ilo_buffer
  44  *    - ilo_texture
  45  *    - ilo_global_binding
  46  */
  47 struct ilo_resource {
  48    struct pipe_resource base;
  49    struct winsys_handle *handle;
  50
  51    struct intel_bo *bo;
  52
  53    /*
  54     * These are the values passed to or returned from winsys for bo
  55     * allocation.  As such,
  56     *
  57     *  - width and height are in blocks,
  58     *  - cpp is the block size in bytes, and
  59     *  - stride is the distance in bytes between two block rows.
  60     */
  61    int bo_width, bo_height, bo_cpp, bo_stride;
  62    enum intel_tiling_mode tiling;
  63
  64    bool compressed;
  65    unsigned block_width;
  66    unsigned block_height;
  67
  68    /* true if the mip level alignments are stricter */
  69    bool halign_8, valign_4;
  70    /* true if space is reserved between layers */
  71    bool array_spacing_full;
  72    /* true if samples are interleaved */
  73    bool interleaved;
  74
  75    /* 2D offsets into a layer/slice/face */
  76    struct {
  77       unsigned x;
  78       unsigned y;
  79    } *slice_offsets[PIPE_MAX_TEXTURE_LEVELS];
  80 };
  81
  82 static inline struct ilo_resource *
  83 ilo_resource(struct pipe_resource *res)
  84 {
  85    return (struct ilo_resource *) res;
  86 }
  87
  88 void
  89 ilo_init_resource_functions(struct ilo_screen *is);
  90
  91 void
  92 ilo_init_transfer_functions(struct ilo_context *ilo);
  93
  94 unsigned
  95 ilo_resource_get_slice_offset(const struct ilo_resource *res,
  96                               int level, int slice, bool tile_aligned,
  97                               unsigned *x_offset, unsigned *y_offset);
  98
  99 #endif /* ILO_RESOURCE_H */