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
  37 struct ilo_buffer {
  38    struct pipe_resource base;
  39
  40    struct intel_bo *bo;
  41    unsigned bo_size;
  42    unsigned bo_flags;
  43 };
  44
  45 struct ilo_texture {
  46    struct pipe_resource base;
  47
  48    bool imported;
  49    unsigned bo_flags;
  50
  51    enum pipe_format bo_format;
  52    struct intel_bo *bo;
  53
  54    /*
  55     * These are the values passed to or returned from winsys for bo
  56     * allocation.  As such,
  57     *
  58     *  - width and height are in blocks,
  59     *  - cpp is the block size in bytes, and
  60     *  - stride is the distance in bytes between two block rows.
  61     */
  62    int bo_width, bo_height, bo_cpp, bo_stride;
  63    enum intel_tiling_mode tiling;
  64
  65    bool compressed;
  66    unsigned block_width;
  67    unsigned block_height;
  68
  69    /* true if the mip level alignments are stricter */
  70    bool halign_8, valign_4;
  71    /* true if space is reserved between layers */
  72    bool array_spacing_full;
  73    /* true if samples are interleaved */
  74    bool interleaved;
  75
  76    /* 2D offsets into a layer/slice/face */
  77    struct ilo_texture_slice {
  78       unsigned x;
  79       unsigned y;
  80    } *slice_offsets[PIPE_MAX_TEXTURE_LEVELS];
  81
  82    struct ilo_texture *separate_s8;
  83 };
  84
  85 static inline struct ilo_buffer *
  86 ilo_buffer(struct pipe_resource *res)
  87 {
  88    return (struct ilo_buffer *)
  89       ((res && res->target == PIPE_BUFFER) ? res : NULL);
  90 }
  91
  92 static inline struct ilo_texture *
  93 ilo_texture(struct pipe_resource *res)
  94 {
  95    return (struct ilo_texture *)
  96       ((res && res->target != PIPE_BUFFER) ? res : NULL);
  97 }
  98
  99 void
 100 ilo_init_resource_functions(struct ilo_screen *is);
 101
 102 bool
 103 ilo_buffer_alloc_bo(struct ilo_buffer *buf);
 104
 105 bool
 106 ilo_texture_alloc_bo(struct ilo_texture *tex);
 107
 108 unsigned
 109 ilo_texture_get_slice_offset(const struct ilo_texture *tex,
 110                              int level, int slice,
 111                              unsigned *x_offset, unsigned *y_offset);
 112
 113 #endif /* ILO_RESOURCE_H */