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  1. /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
  2.  
  3. /*
  4.  * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
  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 (including the next
  14.  * paragraph) shall be included in all copies or substantial portions of the
  15.  * Software.
  16.  *
  17.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18.  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19.  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20.  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21.  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22.  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23.  * SOFTWARE.
  24.  *
  25.  * Authors:
  26.  *    Rob Clark <robclark@freedesktop.org>
  27.  */
  28.  
  29. #ifndef FREEDRENO_RESOURCE_H_
  30. #define FREEDRENO_RESOURCE_H_
  31.  
  32. #include "util/list.h"
  33. #include "util/u_range.h"
  34. #include "util/u_transfer.h"
  35.  
  36. #include "freedreno_util.h"
  37.  
  38. /* Texture Layout on a3xx:
  39.  *
  40.  * Each mipmap-level contains all of it's layers (ie. all cubmap
  41.  * faces, all 1d/2d array elements, etc).  The texture sampler is
  42.  * programmed with the start address of each mipmap level, and hw
  43.  * derives the layer offset within the level.
  44.  *
  45.  * Texture Layout on a4xx:
  46.  *
  47.  * For cubemap and 2d array, each layer contains all of it's mipmap
  48.  * levels (layer_first layout).
  49.  *
  50.  * 3d textures are layed out as on a3xx, but unknown about 3d-array
  51.  * textures.
  52.  *
  53.  * In either case, the slice represents the per-miplevel information,
  54.  * but in layer_first layout it only includes the first layer, and
  55.  * an additional offset of (rsc->layer_size * layer) must be added.
  56.  */
  57. struct fd_resource_slice {
  58.         uint32_t offset;         /* offset of first layer in slice */
  59.         uint32_t pitch;
  60.         uint32_t size0;          /* size of first layer in slice */
  61. };
  62.  
  63. struct fd_resource {
  64.         struct u_resource base;
  65.         struct fd_bo *bo;
  66.         uint32_t cpp;
  67.         bool layer_first;        /* see above description */
  68.         uint32_t layer_size;
  69.         struct fd_resource_slice slices[MAX_MIP_LEVELS];
  70.         uint32_t timestamp;
  71.         bool dirty, reading;
  72.         /* buffer range that has been initialized */
  73.         struct util_range valid_buffer_range;
  74.  
  75.         /* reference to the resource holding stencil data for a z32_s8 texture */
  76.         struct fd_resource *stencil;
  77.  
  78.         struct list_head list;
  79. };
  80.  
  81. static INLINE struct fd_resource *
  82. fd_resource(struct pipe_resource *ptex)
  83. {
  84.         return (struct fd_resource *)ptex;
  85. }
  86.  
  87. struct fd_transfer {
  88.         struct pipe_transfer base;
  89.         void *staging;
  90. };
  91.  
  92. static INLINE struct fd_transfer *
  93. fd_transfer(struct pipe_transfer *ptrans)
  94. {
  95.         return (struct fd_transfer *)ptrans;
  96. }
  97.  
  98. static INLINE struct fd_resource_slice *
  99. fd_resource_slice(struct fd_resource *rsc, unsigned level)
  100. {
  101.         assert(level <= rsc->base.b.last_level);
  102.         return &rsc->slices[level];
  103. }
  104.  
  105. /* get offset for specified mipmap level and texture/array layer */
  106. static INLINE uint32_t
  107. fd_resource_offset(struct fd_resource *rsc, unsigned level, unsigned layer)
  108. {
  109.         struct fd_resource_slice *slice = fd_resource_slice(rsc, level);
  110.         unsigned offset;
  111.         if (rsc->layer_first) {
  112.                 offset = slice->offset + (rsc->layer_size * layer);
  113.         } else {
  114.                 offset = slice->offset + (slice->size0 * layer);
  115.         }
  116.         debug_assert(offset < fd_bo_size(rsc->bo));
  117.         return offset;
  118. }
  119.  
  120. void fd_resource_screen_init(struct pipe_screen *pscreen);
  121. void fd_resource_context_init(struct pipe_context *pctx);
  122.  
  123. #endif /* FREEDRENO_RESOURCE_H_ */
  124.