Merge remote branch 'origin/gallium-0.2' into gallium-0.2

1 files changed, 136 insertions, 164 deletions

diff --git a/src/gallium/drivers/cell/ppu/cell_texture.c b/src/gallium/drivers/cell/ppu/cell_texture.c
index b6590dfb86..230e192573 100644
--- a/src/gallium/drivers/cell/ppu/cell_texture.c
+++ b/src/gallium/drivers/cell/ppu/cell_texture.c
@@ -52,20 +52,22 @@ static unsigned minify( unsigned d )
 
 
 static void
-cell_texture_layout(struct cell_texture * spt)
+cell_texture_layout(struct cell_texture *ct)
 {
-   struct pipe_texture *pt = &spt->base;
+   struct pipe_texture *pt = &ct->base;
    unsigned level;
    unsigned width = pt->width[0];
    unsigned height = pt->height[0];
    unsigned depth = pt->depth[0];
 
-   spt->buffer_size = 0;
+   ct->buffer_size = 0;
 
    for ( level = 0 ; level <= pt->last_level ; level++ ) {
       unsigned size;
       unsigned w_tile, h_tile;
 
+      assert(level < CELL_MAX_TEXTURE_LEVELS);
+
       /* width, height, rounded up to tile size */
       w_tile = align(width, TILE_SIZE);
       h_tile = align(height, TILE_SIZE);
@@ -76,9 +78,9 @@ cell_texture_layout(struct cell_texture * spt)
       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;
+      ct->stride[level] = pt->nblocksx[level] * pt->block.size;
 
-      spt->level_offset[level] = spt->buffer_size;
+      ct->level_offset[level] = ct->buffer_size;
 
       size = pt->nblocksx[level] * pt->nblocksy[level] * pt->block.size;
       if (pt->target == PIPE_TEXTURE_CUBE)
@@ -86,7 +88,7 @@ cell_texture_layout(struct cell_texture * spt)
       else
          size *= depth;
 
-      spt->buffer_size += size;
+      ct->buffer_size += size;
 
       width  = minify(width);
       height = minify(height);
@@ -100,26 +102,25 @@ cell_texture_create(struct pipe_screen *screen,
                     const struct pipe_texture *templat)
 {
    struct pipe_winsys *ws = screen->winsys;
-   struct cell_texture *spt = CALLOC_STRUCT(cell_texture);
-   if (!spt)
+   struct cell_texture *ct = CALLOC_STRUCT(cell_texture);
+   if (!ct)
       return NULL;
 
-   spt->base = *templat;
-   spt->base.refcount = 1;
-   spt->base.screen = screen;
+   ct->base = *templat;
+   ct->base.refcount = 1;
+   ct->base.screen = screen;
 
-   cell_texture_layout(spt);
+   cell_texture_layout(ct);
 
-   spt->buffer = ws->buffer_create(ws, 32,
-                                   PIPE_BUFFER_USAGE_PIXEL,
-                                   spt->buffer_size);
+   ct->buffer = ws->buffer_create(ws, 32, PIPE_BUFFER_USAGE_PIXEL,
+                                  ct->buffer_size);
 
-   if (!spt->buffer) {
-      FREE(spt);
+   if (!ct->buffer) {
+      FREE(ct);
       return NULL;
    }
 
-   return &spt->base;
+   return &ct->base;
 }
 
 
@@ -135,29 +136,116 @@ cell_texture_release(struct pipe_screen *screen,
        __FUNCTION__, (void *) *pt, (*pt)->refcount - 1);
    */
    if (--(*pt)->refcount <= 0) {
-      struct cell_texture *spt = cell_texture(*pt);
+      struct cell_texture *ct = cell_texture(*pt);
+      uint i;
 
       /*
-      DBG("%s deleting %p\n", __FUNCTION__, (void *) spt);
+      DBG("%s deleting %p\n", __FUNCTION__, (void *) ct);
       */
 
-      pipe_buffer_reference(screen, &spt->buffer, NULL);
+      pipe_buffer_reference(screen, &ct->buffer, NULL);
+
+      for (i = 0; i < CELL_MAX_TEXTURE_LEVELS; i++) {
+         if (ct->tiled_data[i]) {
+            align_free(ct->tiled_data[i]);
+         }
+      }
 
-      FREE(spt);
+      FREE(ct);
    }
    *pt = NULL;
 }
 
 
-#if 0
+
+/**
+ * Convert image from linear layout to tiled layout.  4-byte pixels.
+ */
+static void
+twiddle_image_uint(uint w, uint h, uint tile_size, uint *dst,
+                   uint src_stride, const uint *src)
+{
+   const uint tile_size2 = tile_size * tile_size;
+   const uint h_t = (h + tile_size - 1) / tile_size;
+   const uint w_t = (w + tile_size - 1) / tile_size;
+
+   uint it, jt;  /* tile counters */
+   uint i, j;    /* intra-tile counters */
+
+   src_stride /= 4; /* convert from bytes to pixels */
+
+   /* 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;
+
+         /* compute size of this tile (may be smaller than tile_size) */
+         /* XXX note: a compiler bug was found here. That's why the code
+          * looks as it does.
+          */
+         uint tile_width = w - jt * tile_size;
+         tile_width = MIN2(tile_width, tile_size);
+         uint tile_height = h - it * tile_size;
+         tile_height = MIN2(tile_height, tile_size);
+
+         /* loop over texels in the tile */
+         for (i = 0; i < tile_height; i++) {
+            for (j = 0; j < tile_width; j++) {
+               const uint srci = it * tile_size + i;
+               const uint srcj = jt * tile_size + j;
+               ASSERT(srci < h);
+               ASSERT(srcj < w);
+               tdst[i * tile_size + j] = src[srci * src_stride + srcj];
+            }
+         }
+      }
+   }
+}
+
+
+/**
+ * Convert linear texture image data to tiled format for SPU usage.
+ */
 static void
-cell_texture_update(struct pipe_context *pipe, struct pipe_texture *texture,
-                    uint face, uint levelsMask)
+cell_twiddle_texture(struct pipe_screen *screen,
+                     struct pipe_surface *surface)
 {
-   /* XXX TO DO:  re-tile the texture data ... */
+   struct cell_texture *ct = cell_texture(surface->texture);
+   const uint level = surface->level;
+   const uint texWidth = ct->base.width[level];
+   const uint texHeight = ct->base.height[level];
+   const uint bufWidth = align(texWidth, TILE_SIZE);
+   const uint bufHeight = align(texHeight, TILE_SIZE);
+   const void *map = pipe_buffer_map(screen, surface->buffer,
+                                     PIPE_BUFFER_USAGE_CPU_READ);
+   const uint *src = (const uint *) ((const ubyte *) map + surface->offset);
+
+   switch (ct->base.format) {
+   case PIPE_FORMAT_A8R8G8B8_UNORM:
+      {
+         int numFaces = ct->base.target == PIPE_TEXTURE_CUBE ? 6 : 1;
+         int offset = bufWidth * bufHeight * 4 * surface->face;
+         uint *dst;
+
+         if (!ct->tiled_data[level]) {
+            ct->tiled_data[level] =
+               align_malloc(bufWidth * bufHeight * 4 * numFaces, 16);
+         }
+
+         dst = (uint *) ((ubyte *) ct->tiled_data[level] + offset);
 
+         twiddle_image_uint(texWidth, texHeight, TILE_SIZE, dst,
+                            surface->stride, src);
+      }
+      break;
+   default:
+      printf("Cell: twiddle unsupported texture format\n");
+      ;
+   }
+
+   pipe_buffer_unmap(screen, surface->buffer);
 }
-#endif
 
 
 static struct pipe_surface *
@@ -167,22 +255,22 @@ cell_get_tex_surface(struct pipe_screen *screen,
                      unsigned usage)
 {
    struct pipe_winsys *ws = screen->winsys;
-   struct cell_texture *spt = cell_texture(pt);
+   struct cell_texture *ct = 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);
+      winsys_buffer_reference(ws, &ps->buffer, ct->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->stride = ct->stride[level];
+      ps->offset = ct->level_offset[level];
       ps->usage = usage;
 
       /* XXX may need to override usage flags (see sp_texture.c) */
@@ -206,118 +294,12 @@ cell_get_tex_surface(struct pipe_screen *screen,
 }
 
 
-
-/**
- * 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...
- */
-static void
-tile_copy_data(uint w, uint h, uint tile_size, uint *dst, const uint *src)
-{
-   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];
-            }
-         }
-      }
-   }
-}
-
-
-
-/**
- * Convert linear texture image data to tiled format for SPU usage.
- * XXX recast this in terms of pipe_surfaces (aka texture views).
- */
-static void
-cell_tile_texture(struct cell_context *cell,
-                  struct cell_texture *texture)
-{
-   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)
-{
-#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 void 
 cell_tex_surface_release(struct pipe_screen *screen, 
                          struct pipe_surface **s)
 {
-   /* 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);
+   /* XXX if done rendering to teximage, re-tile */
+
    pipe_texture_reference(&(*s)->texture, NULL); 
 
    screen->winsys->surface_release(screen->winsys, s);
@@ -325,9 +307,9 @@ cell_tex_surface_release(struct pipe_screen *screen,
 
 
 static void *
-cell_surface_map( struct pipe_screen *screen,
-                  struct pipe_surface *surface,
-                  unsigned flags )
+cell_surface_map(struct pipe_screen *screen,
+                 struct pipe_surface *surface,
+                 unsigned flags)
 {
    ubyte *map;
 
@@ -339,22 +321,8 @@ cell_surface_map( struct pipe_screen *screen,
    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;
+   else
+      return (void *) (map + surface->offset);
 }
 
 
@@ -362,17 +330,21 @@ static void
 cell_surface_unmap(struct pipe_screen *screen,
                    struct pipe_surface *surface)
 {
-   pipe_buffer_unmap( screen, surface->buffer );
-}
+   struct cell_texture *ct = cell_texture(surface->texture);
 
+   assert(ct);
 
-void
-cell_init_texture_functions(struct cell_context *cell)
-{
-   /*cell->pipe.texture_update = cell_texture_update;*/
+   if ((ct->base.tex_usage & PIPE_TEXTURE_USAGE_SAMPLER) &&
+       (surface->usage & PIPE_BUFFER_USAGE_CPU_WRITE)) {
+      /* convert from linear to tiled layout */
+      cell_twiddle_texture(screen, surface);
+   }
+
+   pipe_buffer_unmap( screen, surface->buffer );
 }
 
 
+
 void
 cell_init_screen_texture_funcs(struct pipe_screen *screen)
 {