src/gallium/drivers/nvfx/nvfx_resource.h

   1 #ifndef NVFX_RESOURCE_H
   2 #define NVFX_RESOURCE_H
   3
   4 #include "util/u_transfer.h"
   5 #include "util/u_format.h"
   6 #include "util/u_math.h"
   7 #include "util/u_double_list.h"
   8 #include "util/u_surfaces.h"
   9 #include "util/u_dirty_surfaces.h"
  10 #include <nouveau/nouveau_bo.h>
  11
  12 struct pipe_resource;
  13 struct nv04_region;
  14
  15 struct nvfx_resource {
  16         struct pipe_resource base;
  17         struct nouveau_bo *bo;
  18 };
  19
  20 static INLINE
  21 struct nvfx_resource *nvfx_resource(struct pipe_resource *resource)
  22 {
  23         return (struct nvfx_resource *)resource;
  24 }
  25
  26 #define NVFX_RESOURCE_FLAG_LINEAR (PIPE_RESOURCE_FLAG_DRV_PRIV << 0)
  27 #define NVFX_RESOURCE_FLAG_USER (PIPE_RESOURCE_FLAG_DRV_PRIV << 1)
  28
  29 /* is resource mapped into the GPU's address space (i.e. VRAM or GART) ? */
  30 static INLINE boolean
  31 nvfx_resource_mapped_by_gpu(struct pipe_resource *resource)
  32 {
  33    return nvfx_resource(resource)->bo->handle;
  34 }
  35
  36 /* is resource in VRAM? */
  37 static inline int
  38 nvfx_resource_on_gpu(struct pipe_resource* pr)
  39 {
  40 #if 0
  41         // a compiler error here means you need to apply libdrm-nouveau-add-domain.patch to libdrm
  42         // TODO: return FALSE if not VRAM and on a PCI-E system
  43         return ((struct nvfx_resource*)pr)->bo->domain & (NOUVEAU_BO_VRAM | NOUVEAU_BO_GART);
  44 #else
  45         return TRUE;
  46 #endif
  47 }
  48
  49 #define NVFX_MAX_TEXTURE_LEVELS  16
  50
  51 /* We have the following invariants for render temporaries
  52  *
  53  * 1. Render temporaries are always linear
  54  * 2. Render temporaries are always up to date
  55  * 3. Currently, render temporaries are destroyed when the resource is used for sampling, but kept for any other use
  56  *
  57  * Also, we do NOT flush temporaries on any pipe->flush().
  58  * This is fine, as long as scanout targets and shared resources never need temps.
  59  *
  60  * TODO: we may want to also support swizzled temporaries to improve performance in some cases.
  61  */
  62
  63 struct nvfx_miptree {
  64         struct nvfx_resource base;
  65
  66         unsigned linear_pitch; /* for linear textures, 0 for swizzled and compressed textures with level-dependent minimal pitch */
  67         unsigned face_size; /* 128-byte aligned face/total size */
  68         unsigned level_offset[NVFX_MAX_TEXTURE_LEVELS];
  69
  70         struct util_surfaces surfaces;
  71         struct util_dirty_surfaces dirty_surfaces;
  72 };
  73
  74 struct nvfx_surface {
  75         struct util_dirty_surface base;
  76         unsigned pitch;
  77
  78         struct nvfx_miptree* temp;
  79 };
  80
  81 static INLINE struct nouveau_bo *
  82 nvfx_surface_buffer(struct pipe_surface *surf)
  83 {
  84         struct nvfx_resource *mt = nvfx_resource(surf->texture);
  85
  86         return mt->bo;
  87 }
  88
  89 static INLINE struct util_dirty_surfaces*
  90 nvfx_surface_get_dirty_surfaces(struct pipe_surface* surf)
  91 {
  92         struct nvfx_miptree *mt = (struct nvfx_miptree *)surf->texture;
  93         return &mt->dirty_surfaces;
  94 }
  95
  96 void
  97 nvfx_init_resource_functions(struct pipe_context *pipe);
  98
  99 void
 100 nvfx_screen_init_resource_functions(struct pipe_screen *pscreen);
 101
 102
 103 /* Internal:
 104  */
 105
 106 struct pipe_resource *
 107 nvfx_miptree_create(struct pipe_screen *pscreen, const struct pipe_resource *pt);
 108
 109 void
 110 nvfx_miptree_destroy(struct pipe_screen *pscreen,
 111                      struct pipe_resource *presource);
 112
 113 struct pipe_resource *
 114 nvfx_miptree_from_handle(struct pipe_screen *pscreen,
 115                          const struct pipe_resource *template,
 116                          struct winsys_handle *whandle);
 117
 118 void
 119 nvfx_miptree_surface_del(struct pipe_surface *ps);
 120
 121 struct pipe_surface *
 122 nvfx_miptree_surface_new(struct pipe_screen *pscreen, struct pipe_resource *pt,
 123                          unsigned face, unsigned level, unsigned zslice,
 124                          unsigned flags);
 125
 126 /* only for miptrees, don't use for buffers */
 127
 128 /* NOTE: for swizzled 3D textures, this just returns the offset of the mipmap level */
 129 static inline unsigned
 130 nvfx_subresource_offset(struct pipe_resource* pt, unsigned face, unsigned level, unsigned zslice)
 131 {
 132         if(pt->target == PIPE_BUFFER)
 133                 return 0;
 134         else
 135         {
 136                 struct nvfx_miptree *mt = (struct nvfx_miptree *)pt;
 137
 138                 unsigned offset = mt->level_offset[level];
 139                 if (pt->target == PIPE_TEXTURE_CUBE)
 140                         offset += mt->face_size * face;
 141                 else if (pt->target == PIPE_TEXTURE_3D && mt->linear_pitch)
 142                         offset += zslice * util_format_get_2d_size(pt->format, (mt->linear_pitch ? mt->linear_pitch : util_format_get_stride(pt->format, u_minify(pt->width0, level))),  u_minify(pt->height0, level));
 143                 return offset;
 144         }
 145 }
 146
 147 static inline unsigned
 148 nvfx_subresource_pitch(struct pipe_resource* pt, unsigned level)
 149 {
 150         if(pt->target == PIPE_BUFFER)
 151                 return ((struct nvfx_resource*)pt)->bo->size;
 152         else
 153         {
 154                 struct nvfx_miptree *mt = (struct nvfx_miptree *)pt;
 155
 156                 if(mt->linear_pitch)
 157                         return mt->linear_pitch;
 158                 else
 159                         return util_format_get_stride(pt->format, u_minify(pt->width0, level));
 160         }
 161 }
 162
 163 void
 164 nvfx_surface_create_temp(struct pipe_context* pipe, struct pipe_surface* surf);
 165
 166 void
 167 nvfx_surface_flush(struct pipe_context* pipe, struct pipe_surface* surf);
 168
 169 struct nvfx_buffer
 170 {
 171         struct nvfx_resource base;
 172         uint8_t* data;
 173         unsigned size;
 174
 175         /* the range of data not yet uploaded to the GPU bo */
 176         unsigned dirty_begin;
 177         unsigned dirty_end;
 178
 179         /* whether all transfers were unsynchronized */
 180         boolean dirty_unsynchronized;
 181
 182         /* whether it would have been profitable to upload
 183          * the latest updated data to the GPU immediately */
 184         boolean last_update_static;
 185
 186         /* how many bytes we need to draw before we deem
 187          * the buffer to be static
 188          */
 189         long long bytes_to_draw_until_static;
 190 };
 191
 192 static inline struct nvfx_buffer* nvfx_buffer(struct pipe_resource* pr)
 193 {
 194         return (struct nvfx_buffer*)pr;
 195 }
 196
 197 /* this is an heuristic to determine whether we are better off uploading the
 198  * buffer to the GPU, or just continuing pushing it on the FIFO
 199  */
 200 static inline boolean nvfx_buffer_seems_static(struct nvfx_buffer* buffer)
 201 {
 202         return buffer->last_update_static
 203                 || buffer->bytes_to_draw_until_static < 0;
 204 }
 205
 206 struct pipe_resource *
 207 nvfx_buffer_create(struct pipe_screen *pscreen,
 208                    const struct pipe_resource *template);
 209
 210 void
 211 nvfx_buffer_destroy(struct pipe_screen *pscreen,
 212                     struct pipe_resource *presource);
 213
 214 struct pipe_resource *
 215 nvfx_user_buffer_create(struct pipe_screen *screen,
 216                         void *ptr,
 217                         unsigned bytes,
 218                         unsigned usage);
 219
 220 void
 221 nvfx_buffer_upload(struct nvfx_buffer* buffer);
 222
 223 #endif