llvmpipe: Store tile color in SoA.

6 files changed, 1019 insertions, 27 deletions

diff --git a/src/gallium/drivers/llvmpipe/SConscript b/src/gallium/drivers/llvmpipe/SConscript
index 8565c7e011..e3106763cb 100644
--- a/src/gallium/drivers/llvmpipe/SConscript
+++ b/src/gallium/drivers/llvmpipe/SConscript
@@ -51,6 +51,7 @@ llvmpipe = env.ConvenienceLibrary(
 		'lp_tex_sample.c',
 		'lp_texture.c',
 		'lp_tile_cache.c',
+		'lp_tile_soa.c',
 	])
 
 
diff --git a/src/gallium/drivers/llvmpipe/lp_quad_blend.c b/src/gallium/drivers/llvmpipe/lp_quad_blend.c
index 2f4c46d5cb..fbfd51f600 100644
--- a/src/gallium/drivers/llvmpipe/lp_quad_blend.c
+++ b/src/gallium/drivers/llvmpipe/lp_quad_blend.c
@@ -183,7 +183,7 @@ blend_run(struct quad_stage *qs,
             int x = itx + (j & 1);
             int y = ity + (j >> 1);
             for (i = 0; i < 4; i++) {
-               dest[i][j] = tile->data.color[y][x][i];
+               dest[i][j] = tile->data.color[i][y][x];
             }
          }
 
@@ -207,7 +207,7 @@ blend_run(struct quad_stage *qs,
                int x = itx + (j & 1);
                int y = ity + (j >> 1);
                for (i = 0; i < 4; i++) { /* loop over color chans */
-                  tile->data.color[y][x][i] = quadColor[i][j];
+                  tile->data.color[i][y][x] = quadColor[i][j];
                }
             }
          }
diff --git a/src/gallium/drivers/llvmpipe/lp_tile_cache.c b/src/gallium/drivers/llvmpipe/lp_tile_cache.c
index 01ba843806..65b62c44dc 100644
--- a/src/gallium/drivers/llvmpipe/lp_tile_cache.c
+++ b/src/gallium/drivers/llvmpipe/lp_tile_cache.c
@@ -38,6 +38,7 @@
 #include "lp_context.h"
 #include "lp_surface.h"
 #include "lp_texture.h"
+#include "lp_tile_soa.h"
 #include "lp_tile_cache.h"
 
 
@@ -216,15 +217,11 @@ clear_tile_rgba(struct llvmpipe_cached_tile *tile,
       memset(tile->data.color, 0, sizeof(tile->data.color));
    }
    else {
-      uint i, j;
-      for (i = 0; i < TILE_SIZE; i++) {
-         for (j = 0; j < TILE_SIZE; j++) {
-            tile->data.color[i][j][0] = clear_value[0];
-            tile->data.color[i][j][1] = clear_value[1];
-            tile->data.color[i][j][2] = clear_value[2];
-            tile->data.color[i][j][3] = clear_value[3];
-         }
-      }
+      uint i, x, y;
+      for (i = 0; i < 4; ++i)
+         for (y = 0; y < TILE_SIZE; y++)
+            for (x = 0; x < TILE_SIZE; x++)
+               tile->data.color[i][y][x] = clear_value[i];
    }
 }
 
@@ -334,11 +331,10 @@ lp_flush_tile_cache(struct llvmpipe_tile_cache *tc)
                                  tile->data.depth32, 0/*STRIDE*/);
             }
             else {
-               pipe_put_tile_rgba(pt,
-                                  tile->addr.bits.x * TILE_SIZE, 
-                                  tile->addr.bits.y * TILE_SIZE, 
-                                  TILE_SIZE, TILE_SIZE,
-                                  (float *) tile->data.color);
+               lp_put_tile_rgba_soa(pt,
+                                    tile->addr.bits.x * TILE_SIZE,
+                                    tile->addr.bits.y * TILE_SIZE,
+                                    tile->data.color);
             }
             tile->addr.bits.invalid = 1;  /* mark as empty */
             inuse++;
@@ -390,11 +386,10 @@ lp_find_cached_tile(struct llvmpipe_tile_cache *tc,
                               tile->data.depth32, 0/*STRIDE*/);
          }
          else {
-            pipe_put_tile_rgba(pt,
-                               tile->addr.bits.x * TILE_SIZE,
-                               tile->addr.bits.y * TILE_SIZE,
-                               TILE_SIZE, TILE_SIZE,
-                               (float *) tile->data.color);
+            lp_put_tile_rgba_soa(pt,
+                                 tile->addr.bits.x * TILE_SIZE,
+                                 tile->addr.bits.y * TILE_SIZE,
+                                 tile->data.color);
          }
       }
 
@@ -420,11 +415,10 @@ lp_find_cached_tile(struct llvmpipe_tile_cache *tc,
                               tile->data.depth32, 0/*STRIDE*/);
          }
          else {
-            pipe_get_tile_rgba(pt,
-                               tile->addr.bits.x * TILE_SIZE, 
-                               tile->addr.bits.y * TILE_SIZE,
-                               TILE_SIZE, TILE_SIZE,
-                               (float *) tile->data.color);
+            lp_get_tile_rgba_soa(pt,
+                                 tile->addr.bits.x * TILE_SIZE,
+                                 tile->addr.bits.y * TILE_SIZE,
+                                 tile->data.color);
          }
       }
    }
diff --git a/src/gallium/drivers/llvmpipe/lp_tile_cache.h b/src/gallium/drivers/llvmpipe/lp_tile_cache.h
index 19676392dc..2f904d9e53 100644
--- a/src/gallium/drivers/llvmpipe/lp_tile_cache.h
+++ b/src/gallium/drivers/llvmpipe/lp_tile_cache.h
@@ -64,7 +64,10 @@ struct llvmpipe_cached_tile
 {
    union tile_address addr;
    union {
-      float color[TILE_SIZE][TILE_SIZE][4];
+
+      /** color in SOA format (rrrr, gggg, bbbb, aaaa) */
+      float color[4][TILE_SIZE][TILE_SIZE];
+
       uint color32[TILE_SIZE][TILE_SIZE];
       uint depth32[TILE_SIZE][TILE_SIZE];
       ushort depth16[TILE_SIZE][TILE_SIZE];
diff --git a/src/gallium/drivers/llvmpipe/lp_tile_soa.c b/src/gallium/drivers/llvmpipe/lp_tile_soa.c
new file mode 100644
index 0000000000..9d37cf6805
--- /dev/null
+++ b/src/gallium/drivers/llvmpipe/lp_tile_soa.c
@@ -0,0 +1,934 @@
+/**************************************************************************
+ * 
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ **************************************************************************/
+
+/**
+ * RGBA/float tile get/put functions.
+ * Usable both by drivers and state trackers.
+ */
+
+
+#include "pipe/p_defines.h"
+#include "pipe/p_inlines.h"
+
+#include "util/u_math.h"
+#include "util/u_memory.h"
+#include "util/u_rect.h"
+#include "util/u_tile.h"
+#include "lp_tile_soa.h"
+
+
+#define PIXEL(_p, _x, _y, _c) ((_p)[(_c)*TILE_SIZE*TILE_SIZE + (_y)*TILE_SIZE + (_x)])
+
+
+/** Convert short in [-32768,32767] to GLfloat in [-1.0,1.0] */
+#define SHORT_TO_FLOAT(S)   ((2.0F * (S) + 1.0F) * (1.0F/65535.0F))
+
+#define UNCLAMPED_FLOAT_TO_SHORT(us, f)  \
+   us = ( (short) ( CLAMP((f), -1.0, 1.0) * 32767.0F) )
+
+
+
+/*** PIPE_FORMAT_A8R8G8B8_UNORM ***/
+
+static void
+a8r8g8b8_get_tile_rgba(const unsigned *src,
+                       unsigned w, unsigned h,
+                       float *p)
+{
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      for (j = 0; j < w; j++) {
+         const unsigned pixel = *src++;
+         PIXEL(p, j, i, 0) = ubyte_to_float((pixel >> 16) & 0xff);
+         PIXEL(p, j, i, 1) = ubyte_to_float((pixel >>  8) & 0xff);
+         PIXEL(p, j, i, 2) = ubyte_to_float((pixel >>  0) & 0xff);
+         PIXEL(p, j, i, 3) = ubyte_to_float((pixel >> 24) & 0xff);
+      }
+   }
+}
+
+
+static void
+a8r8g8b8_put_tile_rgba(unsigned *dst,
+                       unsigned w, unsigned h,
+                       const float *p)
+{
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      for (j = 0; j < w; j++) {
+         unsigned r, g, b, a;
+         r = float_to_ubyte(PIXEL(p, j, i, 0));
+         g = float_to_ubyte(PIXEL(p, j, i, 1));
+         b = float_to_ubyte(PIXEL(p, j, i, 2));
+         a = float_to_ubyte(PIXEL(p, j, i, 3));
+         *dst++ = (a << 24) | (r << 16) | (g << 8) | b;
+      }
+   }
+}
+
+
+/*** PIPE_FORMAT_A8R8G8B8_UNORM ***/
+
+static void
+x8r8g8b8_get_tile_rgba(const unsigned *src,
+                       unsigned w, unsigned h,
+                       float *p)
+{
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      for (j = 0; j < w; j++) {
+         const unsigned pixel = *src++;
+         PIXEL(p, j, i, 0) = ubyte_to_float((pixel >> 16) & 0xff);
+         PIXEL(p, j, i, 1) = ubyte_to_float((pixel >>  8) & 0xff);
+         PIXEL(p, j, i, 2) = ubyte_to_float((pixel >>  0) & 0xff);
+         PIXEL(p, j, i, 3) = ubyte_to_float(0xff);
+      }
+   }
+}
+
+
+static void
+x8r8g8b8_put_tile_rgba(unsigned *dst,
+                       unsigned w, unsigned h,
+                       const float *p)
+{
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      for (j = 0; j < w; j++) {
+         unsigned r, g, b;
+         r = float_to_ubyte(PIXEL(p, j, i, 0));
+         g = float_to_ubyte(PIXEL(p, j, i, 1));
+         b = float_to_ubyte(PIXEL(p, j, i, 2));
+         *dst++ = (0xff << 24) | (r << 16) | (g << 8) | b;
+      }
+   }
+}
+
+
+/*** PIPE_FORMAT_B8G8R8A8_UNORM ***/
+
+static void
+b8g8r8a8_get_tile_rgba(const unsigned *src,
+                       unsigned w, unsigned h,
+                       float *p)
+{
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      for (j = 0; j < w; j++) {
+         const unsigned pixel = *src++;
+         PIXEL(p, j, i, 0) = ubyte_to_float((pixel >>  8) & 0xff);
+         PIXEL(p, j, i, 1) = ubyte_to_float((pixel >> 16) & 0xff);
+         PIXEL(p, j, i, 2) = ubyte_to_float((pixel >> 24) & 0xff);
+         PIXEL(p, j, i, 3) = ubyte_to_float((pixel >>  0) & 0xff);
+      }
+   }
+}
+
+
+static void
+b8g8r8a8_put_tile_rgba(unsigned *dst,
+                       unsigned w, unsigned h,
+                       const float *p)
+{
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      for (j = 0; j < w; j++) {
+         unsigned r, g, b, a;
+         r = float_to_ubyte(PIXEL(p, j, i, 0));
+         g = float_to_ubyte(PIXEL(p, j, i, 1));
+         b = float_to_ubyte(PIXEL(p, j, i, 2));
+         a = float_to_ubyte(PIXEL(p, j, i, 3));
+         *dst++ = (b << 24) | (g << 16) | (r << 8) | a;
+      }
+   }
+}
+
+
+/*** PIPE_FORMAT_A1R5G5B5_UNORM ***/
+
+static void
+a1r5g5b5_get_tile_rgba(const ushort *src,
+                       unsigned w, unsigned h,
+                       float *p)
+{
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      for (j = 0; j < w; j++) {
+         const ushort pixel = *src++;
+         PIXEL(p, j, i, 0) = ((pixel >> 10) & 0x1f) * (1.0f / 31.0f);
+         PIXEL(p, j, i, 1) = ((pixel >>  5) & 0x1f) * (1.0f / 31.0f);
+         PIXEL(p, j, i, 2) = ((pixel      ) & 0x1f) * (1.0f / 31.0f);
+         PIXEL(p, j, i, 3) = ((pixel >> 15)       ) * 1.0f;
+      }
+   }
+}
+
+
+static void
+a1r5g5b5_put_tile_rgba(ushort *dst,
+                       unsigned w, unsigned h,
+                       const float *p)
+{
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      for (j = 0; j < w; j++) {
+         unsigned r, g, b, a;
+         r = float_to_ubyte(PIXEL(p, j, i, 0));
+         g = float_to_ubyte(PIXEL(p, j, i, 1));
+         b = float_to_ubyte(PIXEL(p, j, i, 2));
+         a = float_to_ubyte(PIXEL(p, j, i, 3));
+         r = r >> 3;  /* 5 bits */
+         g = g >> 3;  /* 5 bits */
+         b = b >> 3;  /* 5 bits */
+         a = a >> 7;  /* 1 bit */
+         *dst++ = (a << 15) | (r << 10) | (g << 5) | b;
+      }
+   }
+}
+
+
+/*** PIPE_FORMAT_A4R4G4B4_UNORM ***/
+
+static void
+a4r4g4b4_get_tile_rgba(const ushort *src,
+                       unsigned w, unsigned h,
+                       float *p)
+{
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      for (j = 0; j < w; j++) {
+         const ushort pixel = *src++;
+         PIXEL(p, j, i, 0) = ((pixel >>  8) & 0xf) * (1.0f / 15.0f);
+         PIXEL(p, j, i, 1) = ((pixel >>  4) & 0xf) * (1.0f / 15.0f);
+         PIXEL(p, j, i, 2) = ((pixel      ) & 0xf) * (1.0f / 15.0f);
+         PIXEL(p, j, i, 3) = ((pixel >> 12)      ) * (1.0f / 15.0f);
+      }
+   }
+}
+
+
+static void
+a4r4g4b4_put_tile_rgba(ushort *dst,
+                       unsigned w, unsigned h,
+                       const float *p)
+{
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      for (j = 0; j < w; j++) {
+         unsigned r, g, b, a;
+         r = float_to_ubyte(PIXEL(p, j, i, 0));
+         g = float_to_ubyte(PIXEL(p, j, i, 1));
+         b = float_to_ubyte(PIXEL(p, j, i, 2));
+         a = float_to_ubyte(PIXEL(p, j, i, 3));
+         r >>= 4;
+         g >>= 4;
+         b >>= 4;
+         a >>= 4;
+         *dst++ = (a << 12) | (r << 16) | (g << 4) | b;
+      }
+   }
+}
+
+
+/*** PIPE_FORMAT_R5G6B5_UNORM ***/
+
+static void
+r5g6b5_get_tile_rgba(const ushort *src,
+                     unsigned w, unsigned h,
+                     float *p)
+{
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      for (j = 0; j < w; j++) {
+         const ushort pixel = *src++;
+         PIXEL(p, j, i, 0) = ((pixel >> 11) & 0x1f) * (1.0f / 31.0f);
+         PIXEL(p, j, i, 1) = ((pixel >>  5) & 0x3f) * (1.0f / 63.0f);
+         PIXEL(p, j, i, 2) = ((pixel      ) & 0x1f) * (1.0f / 31.0f);
+         PIXEL(p, j, i, 3) = 1.0f;
+      }
+   }
+}
+
+
+static void
+r5g6b5_put_tile_rgba(ushort *dst,
+                     unsigned w, unsigned h,
+                     const float *p)
+{
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      for (j = 0; j < w; j++) {
+         uint r = (uint) (CLAMP(PIXEL(p, j, i, 0), 0.0, 1.0) * 31.0);
+         uint g = (uint) (CLAMP(PIXEL(p, j, i, 1), 0.0, 1.0) * 63.0);
+         uint b = (uint) (CLAMP(PIXEL(p, j, i, 2), 0.0, 1.0) * 31.0);
+         *dst++ = (r << 11) | (g << 5) | (b);
+      }
+   }
+}
+
+
+
+/*** PIPE_FORMAT_Z16_UNORM ***/
+
+/**
+ * Return each Z value as four floats in [0,1].
+ */
+static void
+z16_get_tile_rgba(const ushort *src,
+                  unsigned w, unsigned h,
+                  float *p)
+{
+   const float scale = 1.0f / 65535.0f;
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      for (j = 0; j < w; j++) {
+         PIXEL(p, j, i, 0) =
+         PIXEL(p, j, i, 1) =
+         PIXEL(p, j, i, 2) =
+         PIXEL(p, j, i, 3) = *src++ * scale;
+      }
+   }
+}
+
+
+
+
+/*** PIPE_FORMAT_L8_UNORM ***/
+
+static void
+l8_get_tile_rgba(const ubyte *src,
+                 unsigned w, unsigned h,
+                 float *p)
+{
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      for (j = 0; j < w; j++, src++) {
+         PIXEL(p, j, i, 0) =
+         PIXEL(p, j, i, 1) =
+         PIXEL(p, j, i, 2) = ubyte_to_float(*src);
+         PIXEL(p, j, i, 3) = 1.0;
+      }
+   }
+}
+
+
+static void
+l8_put_tile_rgba(ubyte *dst,
+                 unsigned w, unsigned h,
+                 const float *p)
+{
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      for (j = 0; j < w; j++) {
+         unsigned r;
+         r = float_to_ubyte(PIXEL(p, j, i, 0));
+         *dst++ = (ubyte) r;
+      }
+   }
+}
+
+
+
+/*** PIPE_FORMAT_A8_UNORM ***/
+
+static void
+a8_get_tile_rgba(const ubyte *src,
+                 unsigned w, unsigned h,
+                 float *p)
+{
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      for (j = 0; j < w; j++, src++) {
+         PIXEL(p, j, i, 0) =
+         PIXEL(p, j, i, 1) =
+         PIXEL(p, j, i, 2) = 0.0;
+         PIXEL(p, j, i, 3) = ubyte_to_float(*src);
+      }
+   }
+}
+
+
+static void
+a8_put_tile_rgba(ubyte *dst,
+                 unsigned w, unsigned h,
+                 const float *p)
+{
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      for (j = 0; j < w; j++) {
+         unsigned a;
+         a = float_to_ubyte(PIXEL(p, j, i, 3));
+         *dst++ = (ubyte) a;
+      }
+   }
+}
+
+
+
+/*** PIPE_FORMAT_R16_SNORM ***/
+
+static void
+r16_get_tile_rgba(const short *src,
+                  unsigned w, unsigned h,
+                  float *p)
+{
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      for (j = 0; j < w; j++, src++) {
+         PIXEL(p, j, i, 0) = SHORT_TO_FLOAT(src[0]);
+         PIXEL(p, j, i, 1) =
+         PIXEL(p, j, i, 2) = 0.0;
+         PIXEL(p, j, i, 3) = 1.0;
+      }
+   }
+}
+
+
+static void
+r16_put_tile_rgba(short *dst,
+                  unsigned w, unsigned h,
+                  const float *p)
+{
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      for (j = 0; j < w; j++, dst++) {
+         UNCLAMPED_FLOAT_TO_SHORT(dst[0], PIXEL(p, j, i, 0));
+      }
+   }
+}
+
+
+/*** PIPE_FORMAT_R16G16B16A16_SNORM ***/
+
+static void
+r16g16b16a16_get_tile_rgba(const short *src,
+                           unsigned w, unsigned h,
+                           float *p)
+{
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      for (j = 0; j < w; j++, src += 4) {
+         PIXEL(p, j, i, 0) = SHORT_TO_FLOAT(src[0]);
+         PIXEL(p, j, i, 1) = SHORT_TO_FLOAT(src[1]);
+         PIXEL(p, j, i, 2) = SHORT_TO_FLOAT(src[2]);
+         PIXEL(p, j, i, 3) = SHORT_TO_FLOAT(src[3]);
+      }
+   }
+}
+
+
+static void
+r16g16b16a16_put_tile_rgba(short *dst,
+                           unsigned w, unsigned h,
+                           const float *p)
+{
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      for (j = 0; j < w; j++, dst += 4) {
+         UNCLAMPED_FLOAT_TO_SHORT(dst[0], PIXEL(p, j, i, 0));
+         UNCLAMPED_FLOAT_TO_SHORT(dst[1], PIXEL(p, j, i, 1));
+         UNCLAMPED_FLOAT_TO_SHORT(dst[2], PIXEL(p, j, i, 2));
+         UNCLAMPED_FLOAT_TO_SHORT(dst[3], PIXEL(p, j, i, 3));
+      }
+   }
+}
+
+
+
+/*** PIPE_FORMAT_I8_UNORM ***/
+
+static void
+i8_get_tile_rgba(const ubyte *src,
+                 unsigned w, unsigned h,
+                 float *p)
+{
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      for (j = 0; j < w; j++, src++) {
+         PIXEL(p, j, i, 0) =
+         PIXEL(p, j, i, 1) =
+         PIXEL(p, j, i, 2) =
+         PIXEL(p, j, i, 3) = ubyte_to_float(*src);
+      }
+   }
+}
+
+
+static void
+i8_put_tile_rgba(ubyte *dst,
+                 unsigned w, unsigned h,
+                 const float *p)
+{
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      for (j = 0; j < w; j++) {
+         unsigned r;
+         r = float_to_ubyte(PIXEL(p, j, i, 0));
+         *dst++ = (ubyte) r;
+      }
+   }
+}
+
+
+/*** PIPE_FORMAT_A8L8_UNORM ***/
+
+static void
+a8l8_get_tile_rgba(const ushort *src,
+                   unsigned w, unsigned h,
+                   float *p)
+{
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      for (j = 0; j < w; j++) {
+         ushort ra = *src++;
+         PIXEL(p, j, i, 0) =
+         PIXEL(p, j, i, 1) =
+         PIXEL(p, j, i, 2) = ubyte_to_float(ra & 0xff);
+         PIXEL(p, j, i, 3) = ubyte_to_float(ra >> 8);
+      }
+   }
+}
+
+
+static void
+a8l8_put_tile_rgba(ushort *dst,
+                   unsigned w, unsigned h,
+                   const float *p)
+{
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      for (j = 0; j < w; j++) {
+         unsigned r, a;
+         r = float_to_ubyte(PIXEL(p, j, i, 0));
+         a = float_to_ubyte(PIXEL(p, j, i, 3));
+         *dst++ = (a << 8) | r;
+      }
+   }
+}
+
+
+
+
+/*** PIPE_FORMAT_Z32_UNORM ***/
+
+/**
+ * Return each Z value as four floats in [0,1].
+ */
+static void
+z32_get_tile_rgba(const unsigned *src,
+                  unsigned w, unsigned h,
+                  float *p)
+{
+   const double scale = 1.0 / (double) 0xffffffff;
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      for (j = 0; j < w; j++) {
+         PIXEL(p, j, i, 0) =
+         PIXEL(p, j, i, 1) =
+         PIXEL(p, j, i, 2) =
+         PIXEL(p, j, i, 3) = (float) (*src++ * scale);
+      }
+   }
+}
+
+
+/*** PIPE_FORMAT_S8Z24_UNORM ***/
+
+/**
+ * Return Z component as four float in [0,1].  Stencil part ignored.
+ */
+static void
+s8z24_get_tile_rgba(const unsigned *src,
+                    unsigned w, unsigned h,
+                    float *p)
+{
+   const double scale = 1.0 / ((1 << 24) - 1);
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      for (j = 0; j < w; j++) {
+         PIXEL(p, j, i, 0) =
+         PIXEL(p, j, i, 1) =
+         PIXEL(p, j, i, 2) =
+         PIXEL(p, j, i, 3) = (float) (scale * (*src++ & 0xffffff));
+      }
+   }
+}
+
+
+/*** PIPE_FORMAT_Z24S8_UNORM ***/
+
+/**
+ * Return Z component as four float in [0,1].  Stencil part ignored.
+ */
+static void
+z24s8_get_tile_rgba(const unsigned *src,
+                    unsigned w, unsigned h,
+                    float *p)
+{
+   const double scale = 1.0 / ((1 << 24) - 1);
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      for (j = 0; j < w; j++) {
+         PIXEL(p, j, i, 0) =
+         PIXEL(p, j, i, 1) =
+         PIXEL(p, j, i, 2) =
+         PIXEL(p, j, i, 3) = (float) (scale * (*src++ >> 8));
+      }
+   }
+}
+
+
+/*** PIPE_FORMAT_Z32_FLOAT ***/
+
+/**
+ * Return each Z value as four floats in [0,1].
+ */
+static void
+z32f_get_tile_rgba(const float *src,
+                   unsigned w, unsigned h,
+                   float *p)
+{
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      for (j = 0; j < w; j++) {
+         PIXEL(p, j, i, 0) =
+         PIXEL(p, j, i, 1) =
+         PIXEL(p, j, i, 2) =
+         PIXEL(p, j, i, 3) = *src++;
+      }
+   }
+}
+
+
+/*** PIPE_FORMAT_YCBCR / PIPE_FORMAT_YCBCR_REV ***/
+
+/**
+ * Convert YCbCr (or YCrCb) to RGBA.
+ */
+static void
+ycbcr_get_tile_rgba(const ushort *src,
+                    unsigned w, unsigned h,
+                    float *p,
+                    boolean rev)
+{
+   const float scale = 1.0f / 255.0f;
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      /* do two texels at a time */
+      for (j = 0; j < (w & ~1); j += 2, src += 2) {
+         const ushort t0 = src[0];
+         const ushort t1 = src[1];
+         const ubyte y0 = (t0 >> 8) & 0xff;  /* luminance */
+         const ubyte y1 = (t1 >> 8) & 0xff;  /* luminance */
+         ubyte cb, cr;
+         float r, g, b;
+
+         if (rev) {
+            cb = t1 & 0xff;         /* chroma U */
+            cr = t0 & 0xff;         /* chroma V */
+         }
+         else {
+            cb = t0 & 0xff;         /* chroma U */
+            cr = t1 & 0xff;         /* chroma V */
+         }
+
+         /* even pixel: y0,cr,cb */
+         r = 1.164f * (y0-16) + 1.596f * (cr-128);
+         g = 1.164f * (y0-16) - 0.813f * (cr-128) - 0.391f * (cb-128);
+         b = 1.164f * (y0-16) + 2.018f * (cb-128);
+         PIXEL(p, j, i, 0) = r * scale;
+         PIXEL(p, j, i, 1) = g * scale;
+         PIXEL(p, j, i, 2) = b * scale;
+         PIXEL(p, j, i, 3) = 1.0f;
+
+         /* odd pixel: use y1,cr,cb */
+         r = 1.164f * (y1-16) + 1.596f * (cr-128);
+         g = 1.164f * (y1-16) - 0.813f * (cr-128) - 0.391f * (cb-128);
+         b = 1.164f * (y1-16) + 2.018f * (cb-128);
+         PIXEL(p, j + 1, i, 0) = r * scale;
+         PIXEL(p, j + 1, i, 1) = g * scale;
+         PIXEL(p, j + 1, i, 2) = b * scale;
+         PIXEL(p, j + 1, i, 3) = 1.0f;
+      }
+      /* do the last texel */
+      if (w & 1) {
+         const ushort t0 = src[0];
+         const ushort t1 = src[1];
+         const ubyte y0 = (t0 >> 8) & 0xff;  /* luminance */
+         ubyte cb, cr;
+         float r, g, b;
+
+         if (rev) {
+            cb = t1 & 0xff;         /* chroma U */
+            cr = t0 & 0xff;         /* chroma V */
+         }
+         else {
+            cb = t0 & 0xff;         /* chroma U */
+            cr = t1 & 0xff;         /* chroma V */
+         }
+
+         /* even pixel: y0,cr,cb */
+         r = 1.164f * (y0-16) + 1.596f * (cr-128);
+         g = 1.164f * (y0-16) - 0.813f * (cr-128) - 0.391f * (cb-128);
+         b = 1.164f * (y0-16) + 2.018f * (cb-128);
+         PIXEL(p, j, i, 0) = r * scale;
+         PIXEL(p, j, i, 1) = g * scale;
+         PIXEL(p, j, i, 2) = b * scale;
+         PIXEL(p, j, i, 3) = 1.0f;
+      }
+   }
+}
+
+
+static void
+fake_get_tile_rgba(const ushort *src,
+                   unsigned w, unsigned h,
+                   float *p)
+{
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      for (j = 0; j < w; j++) {
+         PIXEL(p, j, i, 0) =
+         PIXEL(p, j, i, 1) =
+         PIXEL(p, j, i, 2) =
+         PIXEL(p, j, i, 3) = (i ^ j) & 1 ? 1.0f : 0.0f;
+      }
+   }
+}
+
+
+static void
+lp_tile_raw_to_rgba_soa(enum pipe_format format,
+                        void *src,
+                        uint w, uint h,
+                        float *p)
+{
+   switch (format) {
+   case PIPE_FORMAT_A8R8G8B8_UNORM:
+      a8r8g8b8_get_tile_rgba((unsigned *) src, w, h, p);
+      break;
+   case PIPE_FORMAT_X8R8G8B8_UNORM:
+      x8r8g8b8_get_tile_rgba((unsigned *) src, w, h, p);
+      break;
+   case PIPE_FORMAT_B8G8R8A8_UNORM:
+      b8g8r8a8_get_tile_rgba((unsigned *) src, w, h, p);
+      break;
+   case PIPE_FORMAT_A1R5G5B5_UNORM:
+      a1r5g5b5_get_tile_rgba((ushort *) src, w, h, p);
+      break;
+   case PIPE_FORMAT_A4R4G4B4_UNORM:
+      a4r4g4b4_get_tile_rgba((ushort *) src, w, h, p);
+      break;
+   case PIPE_FORMAT_R5G6B5_UNORM:
+      r5g6b5_get_tile_rgba((ushort *) src, w, h, p);
+      break;
+   case PIPE_FORMAT_L8_UNORM:
+      l8_get_tile_rgba((ubyte *) src, w, h, p);
+      break;
+   case PIPE_FORMAT_A8_UNORM:
+      a8_get_tile_rgba((ubyte *) src, w, h, p);
+      break;
+   case PIPE_FORMAT_I8_UNORM:
+      i8_get_tile_rgba((ubyte *) src, w, h, p);
+      break;
+   case PIPE_FORMAT_A8L8_UNORM:
+      a8l8_get_tile_rgba((ushort *) src, w, h, p);
+      break;
+   case PIPE_FORMAT_R16_SNORM:
+      r16_get_tile_rgba((short *) src, w, h, p);
+      break;
+   case PIPE_FORMAT_R16G16B16A16_SNORM:
+      r16g16b16a16_get_tile_rgba((short *) src, w, h, p);
+      break;
+   case PIPE_FORMAT_Z16_UNORM:
+      z16_get_tile_rgba((ushort *) src, w, h, p);
+      break;
+   case PIPE_FORMAT_Z32_UNORM:
+      z32_get_tile_rgba((unsigned *) src, w, h, p);
+      break;
+   case PIPE_FORMAT_S8Z24_UNORM:
+   case PIPE_FORMAT_X8Z24_UNORM:
+      s8z24_get_tile_rgba((unsigned *) src, w, h, p);
+      break;
+   case PIPE_FORMAT_Z24S8_UNORM:
+   case PIPE_FORMAT_Z24X8_UNORM:
+      z24s8_get_tile_rgba((unsigned *) src, w, h, p);
+      break;
+   case PIPE_FORMAT_Z32_FLOAT:
+      z32f_get_tile_rgba((float *) src, w, h, p);
+      break;
+   case PIPE_FORMAT_YCBCR:
+      ycbcr_get_tile_rgba((ushort *) src, w, h, p, FALSE);
+      break;
+   case PIPE_FORMAT_YCBCR_REV:
+      ycbcr_get_tile_rgba((ushort *) src, w, h, p, TRUE);
+      break;
+   default:
+      debug_printf("%s: unsupported format %s\n", __FUNCTION__, pf_name(format));
+      fake_get_tile_rgba(src, w, h, p);
+   }
+}
+
+
+void
+lp_get_tile_rgba_soa(struct pipe_transfer *pt,
+                     uint x, uint y,
+                     float *p)
+{
+   uint w = TILE_SIZE, h = TILE_SIZE;
+   void *packed;
+
+   if (pipe_clip_tile(x, y, &w, &h, pt))
+      return;
+
+   packed = MALLOC(pf_get_nblocks(&pt->block, w, h) * pt->block.size);
+
+   if (!packed)
+      return;
+
+   if(pt->format == PIPE_FORMAT_YCBCR || pt->format == PIPE_FORMAT_YCBCR_REV)
+      assert((x & 1) == 0);
+
+   pipe_get_tile_raw(pt, x, y, w, h, packed, 0);
+
+   lp_tile_raw_to_rgba_soa(pt->format, packed, w, h, p);
+
+   FREE(packed);
+}
+
+
+void
+lp_put_tile_rgba_soa(struct pipe_transfer *pt,
+                     uint x, uint y,
+                     const float *p)
+{
+   uint w = TILE_SIZE, h = TILE_SIZE;
+   void *packed;
+
+   if (pipe_clip_tile(x, y, &w, &h, pt))
+      return;
+
+   packed = MALLOC(pf_get_nblocks(&pt->block, w, h) * pt->block.size);
+
+   if (!packed)
+      return;
+
+   switch (pt->format) {
+   case PIPE_FORMAT_A8R8G8B8_UNORM:
+      a8r8g8b8_put_tile_rgba((unsigned *) packed, w, h, p);
+      break;
+   case PIPE_FORMAT_X8R8G8B8_UNORM:
+      x8r8g8b8_put_tile_rgba((unsigned *) packed, w, h, p);
+      break;
+   case PIPE_FORMAT_B8G8R8A8_UNORM:
+      b8g8r8a8_put_tile_rgba((unsigned *) packed, w, h, p);
+      break;
+   case PIPE_FORMAT_A1R5G5B5_UNORM:
+      a1r5g5b5_put_tile_rgba((ushort *) packed, w, h, p);
+      break;
+   case PIPE_FORMAT_R5G6B5_UNORM:
+      r5g6b5_put_tile_rgba((ushort *) packed, w, h, p);
+      break;
+   case PIPE_FORMAT_R8G8B8A8_UNORM:
+      assert(0);
+      break;
+   case PIPE_FORMAT_A4R4G4B4_UNORM:
+      a4r4g4b4_put_tile_rgba((ushort *) packed, w, h, p);
+      break;
+   case PIPE_FORMAT_L8_UNORM:
+      l8_put_tile_rgba((ubyte *) packed, w, h, p);
+      break;
+   case PIPE_FORMAT_A8_UNORM:
+      a8_put_tile_rgba((ubyte *) packed, w, h, p);
+      break;
+   case PIPE_FORMAT_I8_UNORM:
+      i8_put_tile_rgba((ubyte *) packed, w, h, p);
+      break;
+   case PIPE_FORMAT_A8L8_UNORM:
+      a8l8_put_tile_rgba((ushort *) packed, w, h, p);
+      break;
+   case PIPE_FORMAT_R16_SNORM:
+      r16_put_tile_rgba((short *) packed, w, h, p);
+      break;
+   case PIPE_FORMAT_R16G16B16A16_SNORM:
+      r16g16b16a16_put_tile_rgba((short *) packed, w, h, p);
+      break;
+   case PIPE_FORMAT_Z16_UNORM:
+      /*z16_put_tile_rgba((ushort *) packed, w, h, p);*/
+      break;
+   case PIPE_FORMAT_Z32_UNORM:
+      /*z32_put_tile_rgba((unsigned *) packed, w, h, p);*/
+      break;
+   case PIPE_FORMAT_S8Z24_UNORM:
+   case PIPE_FORMAT_X8Z24_UNORM:
+      /*s8z24_put_tile_rgba((unsigned *) packed, w, h, p);*/
+      break;
+   case PIPE_FORMAT_Z24S8_UNORM:
+   case PIPE_FORMAT_Z24X8_UNORM:
+      /*z24s8_put_tile_rgba((unsigned *) packed, w, h, p);*/
+      break;
+   default:
+      debug_printf("%s: unsupported format %s\n", __FUNCTION__, pf_name(pt->format));
+   }
+
+   pipe_put_tile_raw(pt, x, y, w, h, packed, 0);
+
+   FREE(packed);
+}
+
+
diff --git a/src/gallium/drivers/llvmpipe/lp_tile_soa.h b/src/gallium/drivers/llvmpipe/lp_tile_soa.h
new file mode 100644
index 0000000000..23b27b77eb
--- /dev/null
+++ b/src/gallium/drivers/llvmpipe/lp_tile_soa.h
@@ -0,0 +1,60 @@
+/**************************************************************************
+ * 
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ **************************************************************************/
+
+#ifndef LP_TILE_SOA_H
+#define LP_TILE_SOA_H
+
+#include "pipe/p_compiler.h"
+
+#include "lp_tile_cache.h"
+
+
+struct pipe_transfer;
+
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+void
+lp_get_tile_rgba_soa(struct pipe_transfer *pt,
+                     uint x, uint y,
+                     float *p);
+
+void
+lp_put_tile_rgba_soa(struct pipe_transfer *pt,
+                     uint x, uint y,
+                     const float *p);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif