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         struct pipe_resource *ss_resource;
  37         struct pipe_box ss_box;
  38 };
  39
  40 struct vc4_resource_slice {
  41         uint32_t offset;
  42         uint32_t stride;
  43         uint32_t size;
  44         /** One of VC4_TILING_FORMAT_* */
  45         uint8_t tiling;
  46 };
  47
  48 struct vc4_surface {
  49         struct pipe_surface base;
  50         uint32_t offset;
  51         uint8_t tiling;
  52 };
  53
  54 struct vc4_resource {
  55         struct u_resource base;
  56         struct vc4_bo *bo;
  57         struct vc4_resource_slice slices[VC4_MAX_MIP_LEVELS];
  58         uint32_t cube_map_stride;
  59         int cpp;
  60         bool tiled;
  61         /** One of VC4_TEXTURE_TYPE_* */
  62         enum vc4_texture_data_type vc4_format;
  63
  64         /**
  65          * Number of times the resource has been written to.
  66          *
  67          * This is used to track when we need to update this shadow resource
  68          * from its parent in the case of GL_TEXTURE_BASE_LEVEL (which we
  69          * can't support in hardware) or GL_UNSIGNED_INTEGER index buffers.
  70          */
  71         uint64_t writes;
  72
  73         /**
  74          * Bitmask of PIPE_CLEAR_COLOR0, PIPE_CLEAR_DEPTH, PIPE_CLEAR_STENCIL
  75          * for which parts of the resource are defined.
  76          *
  77          * Used for avoiding fallback to quad clears for clearing just depth,
  78          * when the stencil contents have never been initialized.  Note that
  79          * we're lazy and fields not present in the buffer (DEPTH in a color
  80          * buffer) may get marked.
  81          */
  82         uint32_t initialized_buffers;
  83
  84         /**
  85          * Resource containing the non-GL_TEXTURE_BASE_LEVEL-rebased texture
  86          * contents, or the 4-byte index buffer.
  87          *
  88          * If the parent is set for an texture, then this resource is actually
  89          * the texture contents just starting from the sampler_view's
  90          * first_level.
  91          *
  92          * If the parent is set for an index index buffer, then this resource
  93          * is actually a shadow containing a 2-byte index buffer starting from
  94          * the ib's offset.
  95          */
  96         struct pipe_resource *shadow_parent;
  97 };
  98
  99 static inline struct vc4_resource *
 100 vc4_resource(struct pipe_resource *prsc)
 101 {
 102         return (struct vc4_resource *)prsc;
 103 }
 104
 105 static inline struct vc4_surface *
 106 vc4_surface(struct pipe_surface *psurf)
 107 {
 108         return (struct vc4_surface *)psurf;
 109 }
 110
 111 static inline struct vc4_transfer *
 112 vc4_transfer(struct pipe_transfer *ptrans)
 113 {
 114         return (struct vc4_transfer *)ptrans;
 115 }
 116
 117 void vc4_resource_screen_init(struct pipe_screen *pscreen);
 118 void vc4_resource_context_init(struct pipe_context *pctx);
 119 struct pipe_resource *vc4_resource_create(struct pipe_screen *pscreen,
 120                                           const struct pipe_resource *tmpl);
 121 void vc4_update_shadow_baselevel_texture(struct pipe_context *pctx,
 122                                          struct pipe_sampler_view *view);
 123 struct pipe_resource *vc4_get_shadow_index_buffer(struct pipe_context *pctx,
 124                                                   const struct pipe_index_buffer *ib,
 125                                                   uint32_t count,
 126                                                   uint32_t *offset);
 127 void vc4_dump_surface(struct pipe_surface *psurf);
 128
 129 #endif /* VC4_RESOURCE_H */