src/gallium/drivers/vc4/vc4_resource.h

   1 /*
   2  * Copyright © 2014 Broadcom
   3  * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * 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 DEALINGS
  22  * IN THE SOFTWARE.
  23  */
  24
  25 #ifndef VC4_RESOURCE_H
  26 #define VC4_RESOURCE_H
  27
  28 #include "vc4_screen.h"
  29 #include "kernel/vc4_packet.h"
  30 #include "util/u_transfer.h"
  31
  32 struct vc4_transfer {
  33         struct pipe_transfer base;
  34         void *map;
  35 };
  36
  37 struct vc4_resource_slice {
  38         uint32_t offset;
  39         uint32_t stride;
  40         uint32_t size;
  41         /** One of VC4_TILING_FORMAT_* */
  42         uint8_t tiling;
  43 };
  44
  45 struct vc4_surface {
  46         struct pipe_surface base;
  47         uint32_t offset;
  48         uint8_t tiling;
  49 };
  50
  51 struct vc4_resource {
  52         struct u_resource base;
  53         struct vc4_bo *bo;
  54         struct vc4_resource_slice slices[VC4_MAX_MIP_LEVELS];
  55         uint32_t cube_map_stride;
  56         int cpp;
  57         bool tiled;
  58         /** One of VC4_TEXTURE_TYPE_* */
  59         enum vc4_texture_data_type vc4_format;
  60
  61         /**
  62          * Number of times the resource has been written to.
  63          *
  64          * This is used to track when we need to update this shadow resource
  65          * from its parent in the case of GL_TEXTURE_BASE_LEVEL (which we
  66          * can't support in hardware) or GL_UNSIGNED_INTEGER index buffers.
  67          */
  68         uint64_t writes;
  69
  70         /**
  71          * Resource containing the non-GL_TEXTURE_BASE_LEVEL-rebased texture
  72          * contents, or the 4-byte index buffer.
  73          *
  74          * If the parent is set for an texture, then this resource is actually
  75          * the texture contents just starting from the sampler_view's
  76          * first_level.
  77          *
  78          * If the parent is set for an index index buffer, then this resource
  79          * is actually a shadow containing a 2-byte index buffer starting from
  80          * the ib's offset.
  81          */
  82         struct pipe_resource *shadow_parent;
  83 };
  84
  85 static INLINE struct vc4_resource *
  86 vc4_resource(struct pipe_resource *prsc)
  87 {
  88         return (struct vc4_resource *)prsc;
  89 }
  90
  91 static INLINE struct vc4_surface *
  92 vc4_surface(struct pipe_surface *psurf)
  93 {
  94         return (struct vc4_surface *)psurf;
  95 }
  96
  97 static INLINE struct vc4_transfer *
  98 vc4_transfer(struct pipe_transfer *ptrans)
  99 {
 100         return (struct vc4_transfer *)ptrans;
 101 }
 102
 103 void vc4_resource_screen_init(struct pipe_screen *pscreen);
 104 void vc4_resource_context_init(struct pipe_context *pctx);
 105 struct pipe_resource *vc4_resource_create(struct pipe_screen *pscreen,
 106                                           const struct pipe_resource *tmpl);
 107 void vc4_update_shadow_baselevel_texture(struct pipe_context *pctx,
 108                                          struct pipe_sampler_view *view);
 109 struct pipe_resource *vc4_get_shadow_index_buffer(struct pipe_context *pctx,
 110                                                   const struct pipe_index_buffer *ib,
 111                                                   uint32_t count,
 112                                                   uint32_t *offset);
 113 void vc4_dump_surface(struct pipe_surface *psurf);
 114
 115 #endif /* VC4_RESOURCE_H */