cell_texture.c File Reference

Include dependency graph for cell_texture.c:

Go to the source code of this file.

Functions
static unsigned	minify (unsigned d)
static void	cell_texture_layout (struct cell_texture *spt)
static struct pipe_texture *	cell_texture_create (struct pipe_screen *screen, const struct pipe_texture *templat)
static void	cell_texture_release (struct pipe_screen *screen, struct pipe_texture **pt)
static struct pipe_surface *	cell_get_tex_surface (struct pipe_screen *screen, struct pipe_texture *pt, unsigned face, unsigned level, unsigned zslice, unsigned usage)
static void	tile_copy_data (uint w, uint h, uint tile_size, uint *dst, const uint *src)
	Copy tile data from linear layout to tiled layout.
static void	cell_tile_texture (struct cell_context *cell, struct cell_texture *texture)
	Convert linear texture image data to tiled format for SPU usage.
void	cell_update_texture_mapping (struct cell_context *cell)
static void	cell_tex_surface_release (struct pipe_screen *screen, struct pipe_surface **s)
static void *	cell_surface_map (struct pipe_screen *screen, struct pipe_surface *surface, unsigned flags)
static void	cell_surface_unmap (struct pipe_screen *screen, struct pipe_surface *surface)
void	cell_init_texture_functions (struct cell_context *cell)
void	cell_init_screen_texture_funcs (struct pipe_screen *screen)

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Function Documentation

static struct pipe_surface* cell_get_tex_surface	(	struct pipe_screen *	screen,
		struct pipe_texture *	pt,
		unsigned	face,
		unsigned	level,
		unsigned	zslice,
		unsigned	usage
	)			[static, read]

Definition at line 164 of file cell_texture.c.

References assert, pipe_texture::block, pipe_surface::block, cell_texture::buffer, pipe_surface::buffer, cell_texture(), pipe_surface::face, pipe_texture::format, pipe_surface::format, pipe_texture::height, pipe_surface::height, pipe_surface::level, cell_texture::level_offset, pipe_texture::nblocksx, pipe_surface::nblocksx, pipe_texture::nblocksy, pipe_surface::nblocksy, pipe_surface::offset, PIPE_TEXTURE_3D, PIPE_TEXTURE_CUBE, pipe_texture_reference(), pipe_surface::refcount, cell_texture::stride, pipe_surface::stride, pipe_winsys::surface_alloc, pipe_texture::target, pipe_surface::texture, pipe_surface::usage, pipe_texture::width, pipe_surface::width, pipe_surface::winsys, pipe_screen::winsys, winsys_buffer_reference(), and pipe_surface::zslice.

{
   struct pipe_winsys *ws = screen->winsys;
   struct cell_texture *spt = cell_texture(pt);
   struct pipe_surface *ps;

   ps = ws->surface_alloc(ws);
   if (ps) {
      assert(ps->refcount);
      assert(ps->winsys);
      winsys_buffer_reference(ws, &ps->buffer, spt->buffer);
      ps->format = pt->format;
      ps->block = pt->block;
      ps->width = pt->width[level];
      ps->height = pt->height[level];
      ps->nblocksx = pt->nblocksx[level];
      ps->nblocksy = pt->nblocksy[level];
      ps->stride = spt->stride[level];
      ps->offset = spt->level_offset[level];
      ps->usage = usage;

      /* XXX may need to override usage flags (see sp_texture.c) */

      pipe_texture_reference(&ps->texture, pt); 
      ps->face = face;
      ps->level = level;
      ps->zslice = zslice;

      if (pt->target == PIPE_TEXTURE_CUBE || pt->target == PIPE_TEXTURE_3D) {
         ps->offset += ((pt->target == PIPE_TEXTURE_CUBE) ? face : zslice) *
                       ps->nblocksy *
                       ps->stride;
      }
      else {
         assert(face == 0);
         assert(zslice == 0);
      }
   }
   return ps;
}

void cell_init_screen_texture_funcs

(

struct pipe_screen *

screen

)

Definition at line 377 of file cell_texture.c.

References cell_get_tex_surface(), cell_surface_map(), cell_surface_unmap(), cell_tex_surface_release(), cell_texture_create(), cell_texture_release(), pipe_screen::get_tex_surface, pipe_screen::surface_map, pipe_screen::surface_unmap, pipe_screen::tex_surface_release, pipe_screen::texture_create, and pipe_screen::texture_release.

{
   screen->texture_create = cell_texture_create;
   screen->texture_release = cell_texture_release;

   screen->get_tex_surface = cell_get_tex_surface;
   screen->tex_surface_release = cell_tex_surface_release;

   screen->surface_map = cell_surface_map;
   screen->surface_unmap = cell_surface_unmap;
}

void cell_init_texture_functions

(

struct cell_context *

cell

)

Definition at line 370 of file cell_texture.c.

{
   /*cell->pipe.texture_update = cell_texture_update;*/
}

static void* cell_surface_map	(	struct pipe_screen *	screen,
		struct pipe_surface *	surface,
		unsigned	flags
	)			[static]

Definition at line 328 of file cell_texture.c.

References assert, pipe_surface::buffer, pipe_surface::offset, pipe_buffer_map(), PIPE_BUFFER_USAGE_CPU_WRITE, pipe_surface::texture, and pipe_surface::usage.

{
   ubyte *map;

   if (flags & ~surface->usage) {
      assert(0);
      return NULL;
   }

   map = pipe_buffer_map( screen, surface->buffer, flags );
   if (map == NULL)
      return NULL;

   /* May want to different things here depending on read/write nature
    * of the map:
    */
   if (surface->texture &&
       (flags & PIPE_BUFFER_USAGE_CPU_WRITE)) 
   {
      /* Do something to notify sharing contexts of a texture change.
       * In softpipe, that would mean flushing the texture cache.
       */
#if 0
      cell_screen(screen)->timestamp++;
#endif
   }
   
   return map + surface->offset;
}

static void cell_surface_unmap	(	struct pipe_screen *	screen,
		struct pipe_surface *	surface
	)			[static]

Definition at line 362 of file cell_texture.c.

References pipe_surface::buffer, and pipe_buffer_unmap().

{
   pipe_buffer_unmap( screen, surface->buffer );
}

static void cell_tex_surface_release	(	struct pipe_screen *	screen,
		struct pipe_surface **	s
	)			[static]

Definition at line 313 of file cell_texture.c.

References assert, pipe_texture_reference(), pipe_winsys::surface_release, and pipe_screen::winsys.

{
   /* Effectively do the texture_update work here - if texture images
    * needed post-processing to put them into hardware layout, this is
    * where it would happen.  For softpipe, nothing to do.
    */
   assert ((*s)->texture);
   pipe_texture_reference(&(*s)->texture, NULL); 

   screen->winsys->surface_release(screen->winsys, s);
}

static struct pipe_texture* cell_texture_create	(	struct pipe_screen *	screen,
		const struct pipe_texture *	templat
	)			[static, read]

Definition at line 99 of file cell_texture.c.

References cell_texture::base, cell_texture::buffer, pipe_winsys::buffer_create, cell_texture::buffer_size, CALLOC_STRUCT, cell_texture_layout(), FREE, PIPE_BUFFER_USAGE_PIXEL, pipe_texture::refcount, pipe_texture::screen, and pipe_screen::winsys.

{
   struct pipe_winsys *ws = screen->winsys;
   struct cell_texture *spt = CALLOC_STRUCT(cell_texture);
   if (!spt)
      return NULL;

   spt->base = *templat;
   spt->base.refcount = 1;
   spt->base.screen = screen;

   cell_texture_layout(spt);

   spt->buffer = ws->buffer_create(ws, 32,
                                   PIPE_BUFFER_USAGE_PIXEL,
                                   spt->buffer_size);

   if (!spt->buffer) {
      FREE(spt);
      return NULL;
   }

   return &spt->base;
}

static void cell_texture_layout

(

struct cell_texture *

spt

)

[static]

Definition at line 55 of file cell_texture.c.

References align(), cell_texture::base, pipe_texture::block, cell_texture::buffer_size, pipe_texture::depth, pipe_texture::height, pipe_texture::last_level, cell_texture::level_offset, minify(), pipe_texture::nblocksx, pipe_texture::nblocksy, pf_get_nblocksx(), pf_get_nblocksy(), PIPE_TEXTURE_CUBE, pipe_format_block::size, cell_texture::stride, pipe_texture::target, TILE_SIZE, and pipe_texture::width.

{
   struct pipe_texture *pt = &spt->base;
   unsigned level;
   unsigned width = pt->width[0];
   unsigned height = pt->height[0];
   unsigned depth = pt->depth[0];

   spt->buffer_size = 0;

   for ( level = 0 ; level <= pt->last_level ; level++ ) {
      unsigned size;
      unsigned w_tile, h_tile;

      /* width, height, rounded up to tile size */
      w_tile = align(width, TILE_SIZE);
      h_tile = align(height, TILE_SIZE);

      pt->width[level] = width;
      pt->height[level] = height;
      pt->depth[level] = depth;
      pt->nblocksx[level] = pf_get_nblocksx(&pt->block, w_tile);  
      pt->nblocksy[level] = pf_get_nblocksy(&pt->block, h_tile);  

      spt->stride[level] = pt->nblocksx[level] * pt->block.size;

      spt->level_offset[level] = spt->buffer_size;

      size = pt->nblocksx[level] * pt->nblocksy[level] * pt->block.size;
      if (pt->target == PIPE_TEXTURE_CUBE)
         size *= 6;
      else
         size *= depth;

      spt->buffer_size += size;

      width  = minify(width);
      height = minify(height);
      depth = minify(depth);
   }
}

static void cell_texture_release	(	struct pipe_screen *	screen,
		struct pipe_texture **	pt
	)			[static]

Definition at line 127 of file cell_texture.c.

References cell_texture::buffer, cell_texture(), FREE, and pipe_buffer_reference().

{
   if (!*pt)
      return;

   /*
   DBG("%s %p refcount will be %d\n",
       __FUNCTION__, (void *) *pt, (*pt)->refcount - 1);
   */
   if (--(*pt)->refcount <= 0) {
      struct cell_texture *spt = cell_texture(*pt);

      /*
      DBG("%s deleting %p\n", __FUNCTION__, (void *) spt);
      */

      pipe_buffer_reference(screen, &spt->buffer, NULL);

      FREE(spt);
   }
   *pt = NULL;
}

static void cell_tile_texture	(	struct cell_context *	cell,
		struct cell_texture *	texture
	)			[static]

Convert linear texture image data to tiled format for SPU usage.

XXX recast this in terms of pipe_surfaces (aka texture views).

Definition at line 248 of file cell_texture.c.

References align_free(), align_malloc(), ASSERT, assert, cell_texture::base, pipe_screen::get_tex_surface, pipe_texture::height, pipe_surface::level, cell_context::pipe, PIPE_BUFFER_USAGE_CPU_WRITE, pipe_surface_map(), pipe_surface_reference(), pipe_surface_unmap(), pipe_context::screen, tile_copy_data(), TILE_SIZE, cell_texture::tiled_data, pipe_texture::width, and pipe_surface::zslice.

{
   struct pipe_screen *screen = cell->pipe.screen;
   uint face = 0, level = 0, zslice = 0;
   struct pipe_surface *surf;
   const uint w = texture->base.width[0], h = texture->base.height[0];
   const uint *src;

   /* temporary restrictions: */
   assert(w >= TILE_SIZE);
   assert(h >= TILE_SIZE);
   assert(w % TILE_SIZE == 0);
   assert(h % TILE_SIZE == 0);

   surf = screen->get_tex_surface(screen, &texture->base, face, level, zslice,
                                  PIPE_BUFFER_USAGE_CPU_WRITE);
   ASSERT(surf);

   src = (const uint *) pipe_surface_map(surf, PIPE_BUFFER_USAGE_CPU_WRITE);

   if (texture->tiled_data) {
      align_free(texture->tiled_data);
   }
   texture->tiled_data = align_malloc(w * h * 4, 16);

   tile_copy_data(w, h, TILE_SIZE, texture->tiled_data, src);

   pipe_surface_unmap(surf);

   pipe_surface_reference(&surf, NULL);
}

void cell_update_texture_mapping

(

struct cell_context *

cell

)

Definition at line 283 of file cell_texture.c.

References cell_texture::base, cell_get_tex_surface(), CELL_MAX_SAMPLERS, cell_tile_texture(), pipe_surface::face, pipe_surface::level, cell_context::pipe, pipe_surface_map(), pipe_surface_unmap(), cell_context::tex_map, cell_context::tex_surf, cell_context::texture, and pipe_surface::zslice.

{
#if 0
   uint face = 0, level = 0, zslice = 0;
#endif
   uint i;

   for (i = 0; i < CELL_MAX_SAMPLERS; i++) {
      if (cell->texture[i])
         cell_tile_texture(cell, cell->texture[i]);
   }

#if 0
   if (cell->tex_surf && cell->tex_map) {
      pipe_surface_unmap(cell->tex_surf);
      cell->tex_map = NULL;
   }

   /* XXX free old surface */

   cell->tex_surf = cell_get_tex_surface(&cell->pipe,
                                         &cell->texture[0]->base,
                                         face, level, zslice);

   cell->tex_map = pipe_surface_map(cell->tex_surf);
#endif
}

static unsigned minify

(

unsigned

d

)

[static]

Definition at line 48 of file cell_texture.c.

References MAX2.

{
   return MAX2(1, d>>1);
}

static void tile_copy_data	(	uint	w,
		uint	h,
		uint	tile_size,
		uint *	dst,
		const uint *	src
	)			[static]

Copy tile data from linear layout to tiled layout.

XXX this should be rolled into the future surface-creation code. XXX also need "untile" code...

Definition at line 216 of file cell_texture.c.

{
   const uint tile_size2 = tile_size * tile_size;
   const uint h_t = h / tile_size, w_t = w / tile_size;

   uint it, jt;  /* tile counters */
   uint i, j;    /* intra-tile counters */

   /* loop over dest tiles */
   for (it = 0; it < h_t; it++) {
      for (jt = 0; jt < w_t; jt++) {
         /* start of dest tile: */
         uint *tdst = dst + (it * w_t + jt) * tile_size2;
         /* loop over texels in the tile */
         for (i = 0; i < tile_size; i++) {
            for (j = 0; j < tile_size; j++) {
               const uint srci = it * tile_size + i;
               const uint srcj = jt * tile_size + j;
               *tdst++ = src[srci * w + srcj];
            }
         }
      }
   }
}

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