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 struct iris_context;
  31
  32 struct iris_format_info {
  33    enum isl_format fmt;
  34    struct isl_swizzle swizzle;
  35 };
  36
  37 #define IRIS_RESOURCE_FLAG_SHADER_MEMZONE  (PIPE_RESOURCE_FLAG_DRV_PRIV << 0)
  38 #define IRIS_RESOURCE_FLAG_SURFACE_MEMZONE (PIPE_RESOURCE_FLAG_DRV_PRIV << 1)
  39 #define IRIS_RESOURCE_FLAG_DYNAMIC_MEMZONE (PIPE_RESOURCE_FLAG_DRV_PRIV << 2)
  40
  41 /**
  42  * Resources represent a GPU buffer object or image (mipmap tree).
  43  *
  44  * They contain the storage (BO) and layout information (ISL surface).
  45  */
  46 struct iris_resource {
  47    struct pipe_resource base;
  48    enum pipe_format internal_format;
  49    struct isl_surf surf;
  50    struct iris_bo *bo;
  51
  52    /**
  53     * A bitfield of PIPE_BIND_* indicating how this resource was bound
  54     * in the past.  Only meaningful for PIPE_BUFFER; used for flushing.
  55     */
  56    unsigned bind_history;
  57 };
  58
  59 /**
  60  * A simple <resource, offset> tuple for storing a reference to a
  61  * piece of state stored in a GPU buffer object.
  62  */
  63 struct iris_state_ref {
  64    struct pipe_resource *res;
  65    uint32_t offset;
  66 };
  67
  68 /**
  69  * Gallium CSO for sampler views (texture views).
  70  *
  71  * In addition to the normal pipe_resource, this adds an ISL view
  72  * which may reinterpret the format or restrict levels/layers.
  73  *
  74  * These can also be linear texture buffers.
  75  */
  76 struct iris_sampler_view {
  77    struct pipe_sampler_view base;
  78    struct isl_view view;
  79
  80    /* A short-cut (not a reference) to the actual resource being viewed.
  81     * Multi-planar (or depth+stencil) images may have multiple resources
  82     * chained together; this skips having to traverse base->texture->*.
  83     */
  84    struct iris_resource *res;
  85
  86    /** The resource (BO) holding our SURFACE_STATE. */
  87    struct iris_state_ref surface_state;
  88 };
  89
  90 /**
  91  * Gallium CSO for surfaces (framebuffer attachments).
  92  *
  93  * A view of a surface that can be bound to a color render target or
  94  * depth/stencil attachment.
  95  */
  96 struct iris_surface {
  97    struct pipe_surface base;
  98    struct isl_view view;
  99
 100    /** The resource (BO) holding our SURFACE_STATE. */
 101    struct iris_state_ref surface_state;
 102 };
 103
 104 /**
 105  * Transfer object - information about a buffer mapping.
 106  */
 107 struct iris_transfer {
 108    struct pipe_transfer base;
 109    struct pipe_debug_callback *dbg;
 110    void *buffer;
 111    void *ptr;
 112
 113    void (*unmap)(struct iris_transfer *);
 114 };
 115
 116 /**
 117  * Unwrap a pipe_resource to get the underlying iris_bo (for convenience).
 118  */
 119 static inline struct iris_bo *
 120 iris_resource_bo(struct pipe_resource *p_res)
 121 {
 122    struct iris_resource *res = (void *) p_res;
 123    return res->bo;
 124 }
 125
 126 struct iris_format_info iris_format_for_usage(const struct gen_device_info *,
 127                                               enum pipe_format pf,
 128                                               isl_surf_usage_flags_t usage);
 129
 130 struct pipe_resource *iris_resource_get_separate_stencil(struct pipe_resource *);
 131
 132 void iris_get_depth_stencil_resources(struct pipe_resource *res,
 133                                       struct iris_resource **out_z,
 134                                       struct iris_resource **out_s);
 135
 136 void iris_init_screen_resource_functions(struct pipe_screen *pscreen);
 137
 138 void iris_flush_and_dirty_for_history(struct iris_context *ice,
 139                                       struct iris_resource *res);
 140
 141 #endif