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 pipe_resource base;
  53         struct vc4_bo *bo;
  54         struct renderonly_scanout *scanout;
  55         struct vc4_resource_slice slices[VC4_MAX_MIP_LEVELS];
  56         uint32_t cube_map_stride;
  57         int cpp;
  58         bool tiled;
  59         /** One of VC4_TEXTURE_TYPE_* */
  60         enum vc4_texture_data_type vc4_format;
  61
  62         /**
  63          * Number of times the resource has been written to.
  64          *
  65          * This is used to track when we need to update this shadow resource
  66          * from its parent in the case of GL_TEXTURE_BASE_LEVEL (which we
  67          * can't support in hardware) or GL_UNSIGNED_INTEGER index buffers.
  68          */
  69         uint64_t writes;
  70
  71         /**
  72          * Bitmask of PIPE_CLEAR_COLOR0, PIPE_CLEAR_DEPTH, PIPE_CLEAR_STENCIL
  73          * for which parts of the resource are defined.
  74          *
  75          * Used for avoiding fallback to quad clears for clearing just depth,
  76          * when the stencil contents have never been initialized.  Note that
  77          * we're lazy and fields not present in the buffer (DEPTH in a color
  78          * buffer) may get marked.
  79          */
  80         uint32_t initialized_buffers;
  81 };
  82
  83 static inline struct vc4_resource *
  84 vc4_resource(struct pipe_resource *prsc)
  85 {
  86         return (struct vc4_resource *)prsc;
  87 }
  88
  89 static inline struct vc4_surface *
  90 vc4_surface(struct pipe_surface *psurf)
  91 {
  92         return (struct vc4_surface *)psurf;
  93 }
  94
  95 static inline struct vc4_transfer *
  96 vc4_transfer(struct pipe_transfer *ptrans)
  97 {
  98         return (struct vc4_transfer *)ptrans;
  99 }
 100
 101 void vc4_resource_screen_init(struct pipe_screen *pscreen);
 102 void vc4_resource_context_init(struct pipe_context *pctx);
 103 struct pipe_resource *vc4_resource_create(struct pipe_screen *pscreen,
 104                                           const struct pipe_resource *tmpl);
 105 void vc4_update_shadow_baselevel_texture(struct pipe_context *pctx,
 106                                          struct pipe_sampler_view *view);
 107 struct pipe_resource *vc4_get_shadow_index_buffer(struct pipe_context *pctx,
 108                                                   const struct pipe_draw_info *info,
 109                                                   uint32_t offset,
 110                                                   uint32_t count,
 111                                                   uint32_t *shadow_offset);
 112 void vc4_dump_surface(struct pipe_surface *psurf);
 113
 114 #endif /* VC4_RESOURCE_H */