src/gallium/drivers/nvfx/nvfx_transfer.c

   1 #include "pipe/p_state.h"
   2 #include "pipe/p_defines.h"
   3 #include "util/u_inlines.h"
   4 #include "util/u_format.h"
   5 #include "util/u_memory.h"
   6 #include "util/u_math.h"
   7 #include "nouveau/nouveau_winsys.h"
   8 #include "nvfx_context.h"
   9 #include "nvfx_screen.h"
  10 #include "nvfx_state.h"
  11 #include "nvfx_resource.h"
  12 #include "nvfx_transfer.h"
  13
  14 struct nvfx_transfer {
  15         struct pipe_transfer base;
  16         struct pipe_surface *surface;
  17         boolean direct;
  18 };
  19
  20 static void
  21 nvfx_compatible_transfer_tex(struct pipe_resource *pt, unsigned width, unsigned height,
  22                              unsigned bind,
  23                              struct pipe_resource *template)
  24 {
  25         memset(template, 0, sizeof(struct pipe_resource));
  26         template->target = pt->target;
  27         template->format = pt->format;
  28         template->width0 = width;
  29         template->height0 = height;
  30         template->depth0 = 1;
  31         template->last_level = 0;
  32         template->nr_samples = pt->nr_samples;
  33         template->bind = bind;
  34         template->_usage = PIPE_USAGE_DYNAMIC;
  35         template->flags = NVFX_RESOURCE_FLAG_LINEAR;
  36 }
  37
  38
  39 static unsigned nvfx_transfer_bind_flags( unsigned transfer_usage )
  40 {
  41         unsigned bind = 0;
  42
  43         if (transfer_usage & PIPE_TRANSFER_WRITE)
  44                 bind |= PIPE_BIND_BLIT_DESTINATION;
  45
  46         if (transfer_usage & PIPE_TRANSFER_READ)
  47                 bind |= PIPE_BIND_BLIT_SOURCE;
  48
  49         return bind;
  50 }
  51
  52 struct pipe_transfer *
  53 nvfx_miptree_transfer_new(struct pipe_context *pipe,
  54                           struct pipe_resource *pt,
  55                           struct pipe_subresource sr,
  56                           unsigned usage,
  57                           const struct pipe_box *box)
  58 {
  59         struct pipe_screen *pscreen = pipe->screen;
  60         struct nvfx_miptree *mt = (struct nvfx_miptree *)pt;
  61         struct nvfx_transfer *tx;
  62         struct pipe_resource tx_tex_template, *tx_tex;
  63         static int no_transfer = -1;
  64         unsigned bind = nvfx_transfer_bind_flags(usage);
  65         if(no_transfer < 0)
  66                 no_transfer = debug_get_bool_option("NOUVEAU_NO_TRANSFER", TRUE/*XXX:FALSE*/);
  67
  68
  69         tx = CALLOC_STRUCT(nvfx_transfer);
  70         if (!tx)
  71                 return NULL;
  72
  73         /* Don't handle 3D transfers yet.
  74          */
  75         assert(box->depth == 1);
  76
  77         pipe_resource_reference(&tx->base.resource, pt);
  78         tx->base.sr = sr;
  79         tx->base.usage = usage;
  80         tx->base.box = *box;
  81         tx->base.stride = mt->level[sr.level].pitch;
  82
  83         /* Direct access to texture */
  84         if ((pt->_usage == PIPE_USAGE_DYNAMIC ||
  85              no_transfer) &&
  86             pt->flags & NVFX_RESOURCE_FLAG_LINEAR)
  87         {
  88                 tx->direct = true;
  89
  90                 /* XXX: just call the internal nvfx function.
  91                  */
  92                 tx->surface = pscreen->get_tex_surface(pscreen, pt,
  93                                                        sr.face, sr.level,
  94                                                        box->z,
  95                                                        bind);
  96                 return &tx->base;
  97         }
  98
  99         tx->direct = false;
 100
 101         nvfx_compatible_transfer_tex(pt, box->width, box->height, bind, &tx_tex_template);
 102
 103         tx_tex = pscreen->resource_create(pscreen, &tx_tex_template);
 104         if (!tx_tex)
 105         {
 106                 FREE(tx);
 107                 return NULL;
 108         }
 109
 110         tx->base.stride = ((struct nvfx_miptree*)tx_tex)->level[0].pitch;
 111
 112         tx->surface = pscreen->get_tex_surface(pscreen, tx_tex,
 113                                                0, 0, 0,
 114                                                bind);
 115
 116         pipe_resource_reference(&tx_tex, NULL);
 117
 118         if (!tx->surface)
 119         {
 120                 pipe_surface_reference(&tx->surface, NULL);
 121                 FREE(tx);
 122                 return NULL;
 123         }
 124
 125         if (usage & PIPE_TRANSFER_READ) {
 126                 struct nvfx_screen *nvscreen = nvfx_screen(pscreen);
 127                 struct pipe_surface *src;
 128
 129                 src = pscreen->get_tex_surface(pscreen, pt,
 130                                                sr.face, sr.level, box->z,
 131                                                PIPE_BIND_BLIT_SOURCE);
 132
 133                 /* TODO: Check if SIFM can deal with x,y,w,h when swizzling */
 134                 /* TODO: Check if SIFM can un-swizzle */
 135                 nvscreen->eng2d->copy(nvscreen->eng2d,
 136                                       tx->surface, 0, 0,
 137                                       src,
 138                                       box->x, box->y,
 139                                       box->width, box->height);
 140
 141                 pipe_surface_reference(&src, NULL);
 142         }
 143
 144         return &tx->base;
 145 }
 146
 147 void
 148 nvfx_miptree_transfer_del(struct pipe_context *pipe,
 149                           struct pipe_transfer *ptx)
 150 {
 151         struct nvfx_transfer *tx = (struct nvfx_transfer *)ptx;
 152
 153         if (!tx->direct && (ptx->usage & PIPE_TRANSFER_WRITE)) {
 154                 struct pipe_screen *pscreen = pipe->screen;
 155                 struct nvfx_screen *nvscreen = nvfx_screen(pscreen);
 156                 struct pipe_surface *dst;
 157
 158                 dst = pscreen->get_tex_surface(pscreen,
 159                                                ptx->resource,
 160                                                ptx->sr.face,
 161                                                ptx->sr.level,
 162                                                ptx->box.z,
 163                                                PIPE_BIND_BLIT_DESTINATION);
 164
 165                 /* TODO: Check if SIFM can deal with x,y,w,h when swizzling */
 166                 nvscreen->eng2d->copy(nvscreen->eng2d,
 167                                       dst, ptx->box.x, ptx->box.y,
 168                                       tx->surface, 0, 0,
 169                                       ptx->box.width, ptx->box.height);
 170
 171                 pipe_surface_reference(&dst, NULL);
 172         }
 173
 174         pipe_surface_reference(&tx->surface, NULL);
 175         pipe_resource_reference(&ptx->resource, NULL);
 176         FREE(ptx);
 177 }
 178
 179 void *
 180 nvfx_miptree_transfer_map(struct pipe_context *pipe, struct pipe_transfer *ptx)
 181 {
 182         struct pipe_screen *pscreen = pipe->screen;
 183         struct nvfx_transfer *tx = (struct nvfx_transfer *)ptx;
 184         struct nv04_surface *ns = (struct nv04_surface *)tx->surface;
 185         struct nvfx_miptree *mt = (struct nvfx_miptree *)tx->surface->texture;
 186         uint8_t *map = nouveau_screen_bo_map(pscreen, mt->base.bo,
 187                                              nouveau_screen_transfer_flags(ptx->usage));
 188
 189         if(!tx->direct)
 190                 return map + ns->base.offset;
 191         else
 192                 return (map + ns->base.offset +
 193                         ptx->box.y * ns->pitch +
 194                         ptx->box.x * util_format_get_blocksize(ptx->resource->format));
 195 }
 196
 197 void
 198 nvfx_miptree_transfer_unmap(struct pipe_context *pipe, struct pipe_transfer *ptx)
 199 {
 200         struct pipe_screen *pscreen = pipe->screen;
 201         struct nvfx_transfer *tx = (struct nvfx_transfer *)ptx;
 202         struct nvfx_miptree *mt = (struct nvfx_miptree *)tx->surface->texture;
 203
 204         nouveau_screen_bo_unmap(pscreen, mt->base.bo);
 205 }