From 5d4360d10cd39e28ee3b563e95959f3dd22c5242 Mon Sep 17 00:00:00 2001
From: Michal Krol <michal@vmware.com>
Date: Wed, 10 Mar 2010 16:32:34 +0100
Subject: [PATCH] gallium: pipe_get_tile_swizzle() accepts format parameter.

Enables casting of texture data.
---
 src/gallium/auxiliary/util/u_tile.c              | 22 +++++++++++++++++++++-
 src/gallium/auxiliary/util/u_tile.h              |  1 +
 src/gallium/drivers/softpipe/sp_tex_tile_cache.c |  2 ++
 src/gallium/drivers/softpipe/sp_tex_tile_cache.h |  1 +
 4 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/src/gallium/auxiliary/util/u_tile.c b/src/gallium/auxiliary/util/u_tile.c
index 024d957..8a36d4d 100644
--- a/src/gallium/auxiliary/util/u_tile.c
+++ b/src/gallium/auxiliary/util/u_tile.c
@@ -1283,12 +1283,32 @@ pipe_get_tile_swizzle(struct pipe_transfer *pt,
                       uint swizzle_g,
                       uint swizzle_b,
                       uint swizzle_a,
+                      enum pipe_format format,
                       float *p)
 {
+   unsigned dst_stride = w * 4;
+   void *packed;
    uint i;
    float rgba01[6];
 
-   pipe_get_tile_rgba(pt, x, y, w, h, p);
+   if (pipe_clip_tile(x, y, &w, &h, pt)) {
+      return;
+   }
+
+   packed = MALLOC(util_format_get_nblocks(format, w, h) * util_format_get_blocksize(format));
+   if (!packed) {
+      return;
+   }
+
+   if (format == PIPE_FORMAT_UYVY || format == PIPE_FORMAT_YUYV) {
+      assert((x & 1) == 0);
+   }
+
+   pipe_get_tile_raw(pt, x, y, w, h, packed, 0);
+
+   pipe_tile_raw_to_rgba(format, packed, w, h, p, dst_stride);
+
+   FREE(packed);
 
    if (swizzle_r == PIPE_SWIZZLE_RED &&
        swizzle_g == PIPE_SWIZZLE_GREEN &&
diff --git a/src/gallium/auxiliary/util/u_tile.h b/src/gallium/auxiliary/util/u_tile.h
index b470617..d665fdb 100644
--- a/src/gallium/auxiliary/util/u_tile.h
+++ b/src/gallium/auxiliary/util/u_tile.h
@@ -81,6 +81,7 @@ pipe_get_tile_swizzle(struct pipe_transfer *pt,
                       uint swizzle_g,
                       uint swizzle_b,
                       uint swizzle_a,
+                      enum pipe_format format,
                       float *p);
 
 void
diff --git a/src/gallium/drivers/softpipe/sp_tex_tile_cache.c b/src/gallium/drivers/softpipe/sp_tex_tile_cache.c
index b9635be..dfa002a 100644
--- a/src/gallium/drivers/softpipe/sp_tex_tile_cache.c
+++ b/src/gallium/drivers/softpipe/sp_tex_tile_cache.c
@@ -150,6 +150,7 @@ sp_tex_tile_cache_set_sampler_view(struct softpipe_tex_tile_cache *tc,
          tc->swizzle_g = view->swizzle_g;
          tc->swizzle_b = view->swizzle_b;
          tc->swizzle_a = view->swizzle_a;
+         tc->format = view->format;
       }
 
       /* mark as entries as invalid/empty */
@@ -274,6 +275,7 @@ sp_find_cached_tile_tex(struct softpipe_tex_tile_cache *tc,
                             tc->swizzle_g,
                             tc->swizzle_b,
                             tc->swizzle_a,
+                            tc->format,
                             (float *) tile->data.color);
       tile->addr = addr;
    }
diff --git a/src/gallium/drivers/softpipe/sp_tex_tile_cache.h b/src/gallium/drivers/softpipe/sp_tex_tile_cache.h
index c562f72..f877040 100644
--- a/src/gallium/drivers/softpipe/sp_tex_tile_cache.h
+++ b/src/gallium/drivers/softpipe/sp_tex_tile_cache.h
@@ -87,6 +87,7 @@ struct softpipe_tex_tile_cache
    unsigned swizzle_g;
    unsigned swizzle_b;
    unsigned swizzle_a;
+   unsigned format;
 
    struct softpipe_tex_cached_tile *last_tile;  /**< most recently retrieved tile */
 };
-- 
2.7.4