src/gallium/drivers/iris/iris_resource.h

   1 /*
   2  * Copyright 2017 Intel Corporation
   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  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the 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 NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  */
  23 #ifndef IRIS_RESOURCE_H
  24 #define IRIS_RESOURCE_H
  25
  26 #include "pipe/p_state.h"
  27 #include "util/u_inlines.h"
  28 #include "intel/isl/isl.h"
  29
  30 #define IRIS_RESOURCE_FLAG_SHADER_MEMZONE  (PIPE_RESOURCE_FLAG_DRV_PRIV << 0)
  31 #define IRIS_RESOURCE_FLAG_SURFACE_MEMZONE (PIPE_RESOURCE_FLAG_DRV_PRIV << 1)
  32 #define IRIS_RESOURCE_FLAG_DYNAMIC_MEMZONE (PIPE_RESOURCE_FLAG_DRV_PRIV << 2)
  33
  34 /**
  35  * Resources represent a GPU buffer object or image (mipmap tree).
  36  *
  37  * They contain the storage (BO) and layout information (ISL surface).
  38  */
  39 struct iris_resource {
  40    struct pipe_resource base;
  41    enum pipe_format internal_format;
  42    struct isl_surf surf;
  43    struct iris_bo *bo;
  44 };
  45
  46 /**
  47  * A simple <resource, offset> tuple for storing a reference to a
  48  * piece of state stored in a GPU buffer object.
  49  */
  50 struct iris_state_ref {
  51    struct pipe_resource *res;
  52    uint32_t offset;
  53 };
  54
  55 /**
  56  * Gallium CSO for sampler views (texture views).
  57  *
  58  * In addition to the normal pipe_resource, this adds an ISL view
  59  * which may reinterpret the format or restrict levels/layers.
  60  *
  61  * These can also be linear texture buffers.
  62  */
  63 struct iris_sampler_view {
  64    struct pipe_sampler_view base;
  65    struct isl_view view;
  66
  67    /** The resource (BO) holding our SURFACE_STATE. */
  68    struct iris_state_ref surface_state;
  69 };
  70
  71 /**
  72  * Gallium CSO for surfaces (framebuffer attachments).
  73  *
  74  * A view of a surface that can be bound to a color render target or
  75  * depth/stencil attachment.
  76  */
  77 struct iris_surface {
  78    struct pipe_surface base;
  79    struct isl_view view;
  80
  81    /** The resource (BO) holding our SURFACE_STATE. */
  82    struct iris_state_ref surface_state;
  83 };
  84
  85 /**
  86  * Transfer object - information about a buffer mapping.
  87  */
  88 struct iris_transfer {
  89    struct pipe_transfer base;
  90    struct pipe_debug_callback *dbg;
  91    void *buffer;
  92    void *ptr;
  93
  94    void (*unmap)(struct iris_transfer *);
  95 };
  96
  97 /**
  98  * Unwrap a pipe_resource to get the underlying iris_bo (for convenience).
  99  */
 100 static inline struct iris_bo *
 101 iris_resource_bo(struct pipe_resource *p_res)
 102 {
 103    struct iris_resource *res = (void *) p_res;
 104    return res->bo;
 105 }
 106
 107 enum isl_format iris_isl_format_for_pipe_format(enum pipe_format pf);
 108 enum isl_format iris_isl_format_for_usage(const struct gen_device_info *,
 109                                           enum pipe_format,
 110                                           isl_surf_usage_flags_t usage);
 111
 112 struct pipe_resource *iris_resource_get_separate_stencil(struct pipe_resource *);
 113
 114 void iris_get_depth_stencil_resources(struct pipe_resource *res,
 115                                       struct iris_resource **out_z,
 116                                       struct iris_resource **out_s);
 117
 118 void iris_init_screen_resource_functions(struct pipe_screen *pscreen);
 119
 120 #endif