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      1 /****************************************************************************
      2  * Copyright (C) 2015 Intel Corporation.   All Rights Reserved.
      3  *
      4  * Permission is hereby granted, free of charge, to any person obtaining a
      5  * copy of this software and associated documentation files (the "Software"),
      6  * to deal in the Software without restriction, including without limitation
      7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      8  * and/or sell copies of the Software, and to permit persons to whom the
      9  * Software is furnished to do so, subject to the following conditions:
     10  *
     11  * The above copyright notice and this permission notice (including the next
     12  * paragraph) shall be included in all copies or substantial portions of the
     13  * Software.
     14  *
     15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
     21  * IN THE SOFTWARE.
     22  ***************************************************************************/
     23 
     24 #ifndef SWR_RESOURCE_H
     25 #define SWR_RESOURCE_H
     26 
     27 #include "pipe/p_state.h"
     28 #include "api.h"
     29 
     30 struct sw_displaytarget;
     31 
     32 enum swr_resource_status {
     33    SWR_RESOURCE_UNUSED = 0x0,
     34    SWR_RESOURCE_READ = 0x1,
     35    SWR_RESOURCE_WRITE = 0x2,
     36 };
     37 
     38 struct swr_resource {
     39    struct pipe_resource base;
     40 
     41    bool has_depth;
     42    bool has_stencil;
     43 
     44    SWR_SURFACE_STATE swr;
     45    SWR_SURFACE_STATE secondary; /* for faking depth/stencil merged formats */
     46 
     47    struct sw_displaytarget *display_target;
     48 
     49    size_t mip_offsets[PIPE_MAX_TEXTURE_LEVELS];
     50    size_t secondary_mip_offsets[PIPE_MAX_TEXTURE_LEVELS];
     51 
     52    enum swr_resource_status status;
     53 };
     54 
     55 
     56 static INLINE struct swr_resource *
     57 swr_resource(struct pipe_resource *resource)
     58 {
     59    return (struct swr_resource *)resource;
     60 }
     61 
     62 static INLINE boolean
     63 swr_resource_is_texture(const struct pipe_resource *resource)
     64 {
     65    switch (resource->target) {
     66    case PIPE_BUFFER:
     67       return FALSE;
     68    case PIPE_TEXTURE_1D:
     69    case PIPE_TEXTURE_1D_ARRAY:
     70    case PIPE_TEXTURE_2D:
     71    case PIPE_TEXTURE_2D_ARRAY:
     72    case PIPE_TEXTURE_RECT:
     73    case PIPE_TEXTURE_3D:
     74    case PIPE_TEXTURE_CUBE:
     75    case PIPE_TEXTURE_CUBE_ARRAY:
     76       return TRUE;
     77    default:
     78       assert(0);
     79       return FALSE;
     80    }
     81 }
     82 
     83 
     84 static INLINE uint8_t *
     85 swr_resource_data(struct pipe_resource *resource)
     86 {
     87    struct swr_resource *swr_r = swr_resource(resource);
     88 
     89    assert(!swr_resource_is_texture(resource));
     90 
     91    return swr_r->swr.pBaseAddress;
     92 }
     93 
     94 
     95 void swr_store_render_target(struct pipe_context *pipe,
     96                              uint32_t attachment,
     97                              enum SWR_TILE_STATE post_tile_state);
     98 
     99 void swr_store_dirty_resource(struct pipe_context *pipe,
    100                               struct pipe_resource *resource,
    101                               enum SWR_TILE_STATE post_tile_state);
    102 
    103 void swr_update_resource_status(struct pipe_context *,
    104                                 const struct pipe_draw_info *);
    105 
    106 /*
    107  * Functions to indicate a resource's in-use status.
    108  */
    109 static INLINE enum
    110 swr_resource_status & operator|=(enum swr_resource_status & a,
    111                                  enum swr_resource_status  b) {
    112    return (enum swr_resource_status &)((int&)a |= (int)b);
    113 }
    114 
    115 static INLINE void
    116 swr_resource_read(struct pipe_resource *resource)
    117 {
    118    swr_resource(resource)->status |= SWR_RESOURCE_READ;
    119 }
    120 
    121 static INLINE void
    122 swr_resource_write(struct pipe_resource *resource)
    123 {
    124    swr_resource(resource)->status |= SWR_RESOURCE_WRITE;
    125 }
    126 
    127 static INLINE void
    128 swr_resource_unused(struct pipe_resource *resource)
    129 {
    130    swr_resource(resource)->status = SWR_RESOURCE_UNUSED;
    131 }
    132 
    133 #endif
    134