mesa update 11 july 2011

1 files changed, 690 insertions, 655 deletions

diff --git a/mesalib/src/gallium/auxiliary/util/u_tile.c b/mesalib/src/gallium/auxiliary/util/u_tile.c
index 54f634948..23f12e5f4 100644
--- a/mesalib/src/gallium/auxiliary/util/u_tile.c
+++ b/mesalib/src/gallium/auxiliary/util/u_tile.c
@@ -1,655 +1,690 @@
-/**************************************************************************

- * 

- * 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 "util/u_inlines.h"

-

-#include "util/u_format.h"

-#include "util/u_math.h"

-#include "util/u_memory.h"

-#include "util/u_rect.h"

-#include "util/u_tile.h"

-

-

-/**

- * Move raw block of pixels from transfer object to user memory.

- */

-void

-pipe_get_tile_raw(struct pipe_context *pipe,

-                  struct pipe_transfer *pt,

-                  uint x, uint y, uint w, uint h,

-                  void *dst, int dst_stride)

-{

-   const void *src;

-

-   if (dst_stride == 0)

-      dst_stride = util_format_get_stride(pt->resource->format, w);

-

-   if (u_clip_tile(x, y, &w, &h, &pt->box))

-      return;

-

-   src = pipe->transfer_map(pipe, pt);

-   assert(src);

-   if(!src)

-      return;

-

-   util_copy_rect(dst, pt->resource->format, dst_stride, 0, 0, w, h, src, pt->stride, x, y);

-

-   pipe->transfer_unmap(pipe, pt);

-}

-

-

-/**

- * Move raw block of pixels from user memory to transfer object.

- */

-void

-pipe_put_tile_raw(struct pipe_context *pipe,

-                  struct pipe_transfer *pt,

-                  uint x, uint y, uint w, uint h,

-                  const void *src, int src_stride)

-{

-   void *dst;

-   enum pipe_format format = pt->resource->format;

-

-   if (src_stride == 0)

-      src_stride = util_format_get_stride(format, w);

-

-   if (u_clip_tile(x, y, &w, &h, &pt->box))

-      return;

-

-   dst = pipe->transfer_map(pipe, pt);

-   assert(dst);

-   if(!dst)

-      return;

-

-   util_copy_rect(dst, format, pt->stride, x, y, w, h, src, src_stride, 0, 0);

-

-   pipe->transfer_unmap(pipe, pt);

-}

-

-

-

-

-/** 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_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,

-                  unsigned dst_stride)

-{

-   const float scale = 1.0f / 65535.0f;

-   unsigned i, j;

-

-   for (i = 0; i < h; i++) {

-      float *pRow = p;

-      for (j = 0; j < w; j++, pRow += 4) {

-         pRow[0] =

-         pRow[1] =

-         pRow[2] =

-         pRow[3] = *src++ * scale;

-      }

-      p += dst_stride;

-   }

-}

-

-

-

-

-/*** 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,

-                  unsigned dst_stride)

-{

-   const double scale = 1.0 / (double) 0xffffffff;

-   unsigned i, j;

-

-   for (i = 0; i < h; i++) {

-      float *pRow = p;

-      for (j = 0; j < w; j++, pRow += 4) {

-         pRow[0] =

-         pRow[1] =

-         pRow[2] =

-         pRow[3] = (float) (*src++ * scale);

-      }

-      p += dst_stride;

-   }

-}

-

-

-/*** PIPE_FORMAT_Z24_UNORM_S8_USCALED ***/

-

-/**

- * 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,

-                    unsigned dst_stride)

-{

-   const double scale = 1.0 / ((1 << 24) - 1);

-   unsigned i, j;

-

-   for (i = 0; i < h; i++) {

-      float *pRow = p;

-      for (j = 0; j < w; j++, pRow += 4) {

-         pRow[0] =

-         pRow[1] =

-         pRow[2] =

-         pRow[3] = (float) (scale * (*src++ & 0xffffff));

-      }

-      p += dst_stride;

-   }

-}

-

-

-/*** PIPE_FORMAT_S8_USCALED_Z24_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,

-                    unsigned dst_stride)

-{

-   const double scale = 1.0 / ((1 << 24) - 1);

-   unsigned i, j;

-

-   for (i = 0; i < h; i++) {

-      float *pRow = p;

-      for (j = 0; j < w; j++, pRow += 4) {

-         pRow[0] =

-         pRow[1] =

-         pRow[2] =

-         pRow[3] = (float) (scale * (*src++ >> 8));

-      }

-      p += dst_stride;

-   }

-}

-

-/*** PIPE_FORMAT_S8X24_USCALED ***/

-

-/**

- * Return S component as four uint32_t in [0..255].  Z part ignored.

- */

-static void

-s8x24_get_tile_rgba(const unsigned *src,

-                    unsigned w, unsigned h,

-                    float *p,

-                    unsigned dst_stride)

-{

-   unsigned i, j;

-

-   for (i = 0; i < h; i++) {

-      float *pRow = p;

-

-      for (j = 0; j < w; j++, pRow += 4) {

-         pRow[0] =

-         pRow[1] =

-         pRow[2] =

-         pRow[3] = (float)((*src++ >> 24) & 0xff);

-      }

-

-      p += dst_stride;

-   }

-}

-

-/*** PIPE_FORMAT_X24S8_USCALED ***/

-

-/**

- * Return S component as four uint32_t in [0..255].  Z part ignored.

- */

-static void

-x24s8_get_tile_rgba(const unsigned *src,

-                    unsigned w, unsigned h,

-                    float *p,

-                    unsigned dst_stride)

-{

-   unsigned i, j;

-

-   for (i = 0; i < h; i++) {

-      float *pRow = p;

-      for (j = 0; j < w; j++, pRow += 4) {

-         pRow[0] =

-         pRow[1] =

-         pRow[2] =

-         pRow[3] = (float)(*src++ & 0xff);

-      }

-      p += dst_stride;

-   }

-}

-

-

-/**

- * Return S component as four uint32_t in [0..255].  Z part ignored.

- */

-static void

-s8_get_tile_rgba(const unsigned char *src,

-		 unsigned w, unsigned h,

-		 float *p,

-		 unsigned dst_stride)

-{

-   unsigned i, j;

-

-   for (i = 0; i < h; i++) {

-      float *pRow = p;

-      for (j = 0; j < w; j++, pRow += 4) {

-         pRow[0] =

-         pRow[1] =

-         pRow[2] =

-         pRow[3] = (float)(*src++ & 0xff);

-      }

-      p += dst_stride;

-   }

-}

-

-/*** 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 dst_stride)

-{

-   unsigned i, j;

-

-   for (i = 0; i < h; i++) {

-      float *pRow = p;

-      for (j = 0; j < w; j++, pRow += 4) {

-         pRow[0] =

-         pRow[1] =

-         pRow[2] =

-         pRow[3] = *src++;

-      }

-      p += dst_stride;

-   }

-}

-

-

-void

-pipe_tile_raw_to_rgba(enum pipe_format format,

-                      void *src,

-                      uint w, uint h,

-                      float *dst, unsigned dst_stride)

-{

-   switch (format) {

-   case PIPE_FORMAT_Z16_UNORM:

-      z16_get_tile_rgba((ushort *) src, w, h, dst, dst_stride);

-      break;

-   case PIPE_FORMAT_Z32_UNORM:

-      z32_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);

-      break;

-   case PIPE_FORMAT_Z24_UNORM_S8_USCALED:

-   case PIPE_FORMAT_Z24X8_UNORM:

-      s8z24_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);

-      break;

-   case PIPE_FORMAT_S8_USCALED:

-      s8_get_tile_rgba((unsigned char *) src, w, h, dst, dst_stride);

-      break;

-   case PIPE_FORMAT_X24S8_USCALED:

-      s8x24_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);

-      break;

-   case PIPE_FORMAT_S8_USCALED_Z24_UNORM:

-   case PIPE_FORMAT_X8Z24_UNORM:

-      z24s8_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);

-      break;

-   case PIPE_FORMAT_S8X24_USCALED:

-      x24s8_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);

-      break;

-   case PIPE_FORMAT_Z32_FLOAT:

-      z32f_get_tile_rgba((float *) src, w, h, dst, dst_stride);

-      break;

-   default:

-      util_format_read_4f(format,

-                          dst, dst_stride * sizeof(float),

-                          src, util_format_get_stride(format, w),

-                          0, 0, w, h);

-   }

-}

-

-

-void

-pipe_get_tile_rgba(struct pipe_context *pipe,

-                   struct pipe_transfer *pt,

-                   uint x, uint y, uint w, uint h,

-                   float *p)

-{

-   pipe_get_tile_rgba_format(pipe, pt, x, y, w, h, pt->resource->format, p);

-}

-

-

-void

-pipe_get_tile_rgba_format(struct pipe_context *pipe,

-                          struct pipe_transfer *pt,

-                          uint x, uint y, uint w, uint h,

-                          enum pipe_format format,

-                          float *p)

-{

-   unsigned dst_stride = w * 4;

-   void *packed;

-

-   if (u_clip_tile(x, y, &w, &h, &pt->box)) {

-      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(pipe, pt, x, y, w, h, packed, 0);

-

-   pipe_tile_raw_to_rgba(format, packed, w, h, p, dst_stride);

-

-   FREE(packed);

-}

-

-

-void

-pipe_put_tile_rgba(struct pipe_context *pipe,

-                   struct pipe_transfer *pt,

-                   uint x, uint y, uint w, uint h,

-                   const float *p)

-{

-   pipe_put_tile_rgba_format(pipe, pt, x, y, w, h, pt->resource->format, p);

-}

-

-

-void

-pipe_put_tile_rgba_format(struct pipe_context *pipe,

-                          struct pipe_transfer *pt,

-                          uint x, uint y, uint w, uint h,

-                          enum pipe_format format,

-                          const float *p)

-{

-   unsigned src_stride = w * 4;

-   void *packed;

-

-   if (u_clip_tile(x, y, &w, &h, &pt->box))

-      return;

-

-   packed = MALLOC(util_format_get_nblocks(format, w, h) * util_format_get_blocksize(format));

-

-   if (!packed)

-      return;

-

-   switch (format) {

-   case PIPE_FORMAT_Z16_UNORM:

-      /*z16_put_tile_rgba((ushort *) packed, w, h, p, src_stride);*/

-      break;

-   case PIPE_FORMAT_Z32_UNORM:

-      /*z32_put_tile_rgba((unsigned *) packed, w, h, p, src_stride);*/

-      break;

-   case PIPE_FORMAT_Z24_UNORM_S8_USCALED:

-   case PIPE_FORMAT_Z24X8_UNORM:

-      /*s8z24_put_tile_rgba((unsigned *) packed, w, h, p, src_stride);*/

-      break;

-   case PIPE_FORMAT_S8_USCALED_Z24_UNORM:

-   case PIPE_FORMAT_X8Z24_UNORM:

-      /*z24s8_put_tile_rgba((unsigned *) packed, w, h, p, src_stride);*/

-      break;

-   default:

-      util_format_write_4f(format,

-                           p, src_stride * sizeof(float),

-                           packed, util_format_get_stride(format, w),

-                           0, 0, w, h);

-   }

-

-   pipe_put_tile_raw(pipe, pt, x, y, w, h, packed, 0);

-

-   FREE(packed);

-}

-

-

-/**

- * Get a block of Z values, converted to 32-bit range.

- */

-void

-pipe_get_tile_z(struct pipe_context *pipe,

-                struct pipe_transfer *pt,

-                uint x, uint y, uint w, uint h,

-                uint *z)

-{

-   const uint dstStride = w;

-   ubyte *map;

-   uint *pDest = z;

-   uint i, j;

-   enum pipe_format format = pt->resource->format;

-

-   if (u_clip_tile(x, y, &w, &h, &pt->box))

-      return;

-

-   map = (ubyte *)pipe->transfer_map(pipe, pt);

-   if (!map) {

-      assert(0);

-      return;

-   }

-

-   switch (format) {

-   case PIPE_FORMAT_Z32_UNORM:

-      {

-         const uint *ptrc

-            = (const uint *)(map  + y * pt->stride + x*4);

-         for (i = 0; i < h; i++) {

-            memcpy(pDest, ptrc, 4 * w);

-            pDest += dstStride;

-            ptrc += pt->stride/4;

-         }

-      }

-      break;

-   case PIPE_FORMAT_Z24_UNORM_S8_USCALED:

-   case PIPE_FORMAT_Z24X8_UNORM:

-      {

-         const uint *ptrc

-            = (const uint *)(map + y * pt->stride + x*4);

-         for (i = 0; i < h; i++) {

-            for (j = 0; j < w; j++) {

-               /* convert 24-bit Z to 32-bit Z */

-               pDest[j] = (ptrc[j] << 8) | ((ptrc[j] >> 16) & 0xff);

-            }

-            pDest += dstStride;

-            ptrc += pt->stride/4;

-         }

-      }

-      break;

-   case PIPE_FORMAT_S8_USCALED_Z24_UNORM:

-   case PIPE_FORMAT_X8Z24_UNORM:

-      {

-         const uint *ptrc

-            = (const uint *)(map + y * pt->stride + x*4);

-         for (i = 0; i < h; i++) {

-            for (j = 0; j < w; j++) {

-               /* convert 24-bit Z to 32-bit Z */

-               pDest[j] = (ptrc[j] & 0xffffff00) | ((ptrc[j] >> 24) & 0xff);

-            }

-            pDest += dstStride;

-            ptrc += pt->stride/4;

-         }

-      }

-      break;

-   case PIPE_FORMAT_Z16_UNORM:

-      {

-         const ushort *ptrc

-            = (const ushort *)(map + y * pt->stride + x*2);

-         for (i = 0; i < h; i++) {

-            for (j = 0; j < w; j++) {

-               /* convert 16-bit Z to 32-bit Z */

-               pDest[j] = (ptrc[j] << 16) | ptrc[j];

-            }

-            pDest += dstStride;

-            ptrc += pt->stride/2;

-         }

-      }

-      break;

-   default:

-      assert(0);

-   }

-

-   pipe->transfer_unmap(pipe, pt);

-}

-

-

-void

-pipe_put_tile_z(struct pipe_context *pipe,

-                struct pipe_transfer *pt,

-                uint x, uint y, uint w, uint h,

-                const uint *zSrc)

-{

-   const uint srcStride = w;

-   const uint *ptrc = zSrc;

-   ubyte *map;

-   uint i, j;

-   enum pipe_format format = pt->resource->format;

-

-   if (u_clip_tile(x, y, &w, &h, &pt->box))

-      return;

-

-   map = (ubyte *)pipe->transfer_map(pipe, pt);

-   if (!map) {

-      assert(0);

-      return;

-   }

-

-   switch (format) {

-   case PIPE_FORMAT_Z32_UNORM:

-      {

-         uint *pDest = (uint *) (map + y * pt->stride + x*4);

-         for (i = 0; i < h; i++) {

-            memcpy(pDest, ptrc, 4 * w);

-            pDest += pt->stride/4;

-            ptrc += srcStride;

-         }

-      }

-      break;

-   case PIPE_FORMAT_Z24_UNORM_S8_USCALED:

-      {

-         uint *pDest = (uint *) (map + y * pt->stride + x*4);

-         /*assert((pt->usage & PIPE_TRANSFER_READ_WRITE) == PIPE_TRANSFER_READ_WRITE);*/

-         for (i = 0; i < h; i++) {

-            for (j = 0; j < w; j++) {

-               /* convert 32-bit Z to 24-bit Z, preserve stencil */

-               pDest[j] = (pDest[j] & 0xff000000) | ptrc[j] >> 8;

-            }

-            pDest += pt->stride/4;

-            ptrc += srcStride;

-         }

-      }

-      break;

-   case PIPE_FORMAT_Z24X8_UNORM:

-      {

-         uint *pDest = (uint *) (map + y * pt->stride + x*4);

-         for (i = 0; i < h; i++) {

-            for (j = 0; j < w; j++) {

-               /* convert 32-bit Z to 24-bit Z (0 stencil) */

-               pDest[j] = ptrc[j] >> 8;

-            }

-            pDest += pt->stride/4;

-            ptrc += srcStride;

-         }

-      }

-      break;

-   case PIPE_FORMAT_S8_USCALED_Z24_UNORM:

-      {

-         uint *pDest = (uint *) (map + y * pt->stride + x*4);

-         /*assert((pt->usage & PIPE_TRANSFER_READ_WRITE) == PIPE_TRANSFER_READ_WRITE);*/

-         for (i = 0; i < h; i++) {

-            for (j = 0; j < w; j++) {

-               /* convert 32-bit Z to 24-bit Z, preserve stencil */

-               pDest[j] = (pDest[j] & 0xff) | (ptrc[j] & 0xffffff00);

-            }

-            pDest += pt->stride/4;

-            ptrc += srcStride;

-         }

-      }

-      break;

-   case PIPE_FORMAT_X8Z24_UNORM:

-      {

-         uint *pDest = (uint *) (map + y * pt->stride + x*4);

-         for (i = 0; i < h; i++) {

-            for (j = 0; j < w; j++) {

-               /* convert 32-bit Z to 24-bit Z (0 stencil) */

-               pDest[j] = ptrc[j] & 0xffffff00;

-            }

-            pDest += pt->stride/4;

-            ptrc += srcStride;

-         }

-      }

-      break;

-   case PIPE_FORMAT_Z16_UNORM:

-      {

-         ushort *pDest = (ushort *) (map + y * pt->stride + x*2);

-         for (i = 0; i < h; i++) {

-            for (j = 0; j < w; j++) {

-               /* convert 32-bit Z to 16-bit Z */

-               pDest[j] = ptrc[j] >> 16;

-            }

-            pDest += pt->stride/2;

-            ptrc += srcStride;

-         }

-      }

-      break;

-   default:

-      assert(0);

-   }

-

-   pipe->transfer_unmap(pipe, pt);

-}

-

-

+/**************************************************************************
+ * 
+ * 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 "util/u_inlines.h"
+
+#include "util/u_format.h"
+#include "util/u_math.h"
+#include "util/u_memory.h"
+#include "util/u_rect.h"
+#include "util/u_tile.h"
+
+
+/**
+ * Move raw block of pixels from transfer object to user memory.
+ */
+void
+pipe_get_tile_raw(struct pipe_context *pipe,
+                  struct pipe_transfer *pt,
+                  uint x, uint y, uint w, uint h,
+                  void *dst, int dst_stride)
+{
+   const void *src;
+
+   if (dst_stride == 0)
+      dst_stride = util_format_get_stride(pt->resource->format, w);
+
+   if (u_clip_tile(x, y, &w, &h, &pt->box))
+      return;
+
+   src = pipe->transfer_map(pipe, pt);
+   assert(src);
+   if(!src)
+      return;
+
+   util_copy_rect(dst, pt->resource->format, dst_stride, 0, 0, w, h, src, pt->stride, x, y);
+
+   pipe->transfer_unmap(pipe, pt);
+}
+
+
+/**
+ * Move raw block of pixels from user memory to transfer object.
+ */
+void
+pipe_put_tile_raw(struct pipe_context *pipe,
+                  struct pipe_transfer *pt,
+                  uint x, uint y, uint w, uint h,
+                  const void *src, int src_stride)
+{
+   void *dst;
+   enum pipe_format format = pt->resource->format;
+
+   if (src_stride == 0)
+      src_stride = util_format_get_stride(format, w);
+
+   if (u_clip_tile(x, y, &w, &h, &pt->box))
+      return;
+
+   dst = pipe->transfer_map(pipe, pt);
+   assert(dst);
+   if(!dst)
+      return;
+
+   util_copy_rect(dst, format, pt->stride, x, y, w, h, src, src_stride, 0, 0);
+
+   pipe->transfer_unmap(pipe, pt);
+}
+
+
+
+
+/** 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_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,
+                  unsigned dst_stride)
+{
+   const float scale = 1.0f / 65535.0f;
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      float *pRow = p;
+      for (j = 0; j < w; j++, pRow += 4) {
+         pRow[0] =
+         pRow[1] =
+         pRow[2] =
+         pRow[3] = *src++ * scale;
+      }
+      p += dst_stride;
+   }
+}
+
+
+
+
+/*** 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,
+                  unsigned dst_stride)
+{
+   const double scale = 1.0 / (double) 0xffffffff;
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      float *pRow = p;
+      for (j = 0; j < w; j++, pRow += 4) {
+         pRow[0] =
+         pRow[1] =
+         pRow[2] =
+         pRow[3] = (float) (*src++ * scale);
+      }
+      p += dst_stride;
+   }
+}
+
+
+/*** PIPE_FORMAT_Z24_UNORM_S8_USCALED ***/
+
+/**
+ * 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,
+                    unsigned dst_stride)
+{
+   const double scale = 1.0 / ((1 << 24) - 1);
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      float *pRow = p;
+      for (j = 0; j < w; j++, pRow += 4) {
+         pRow[0] =
+         pRow[1] =
+         pRow[2] =
+         pRow[3] = (float) (scale * (*src++ & 0xffffff));
+      }
+      p += dst_stride;
+   }
+}
+
+
+/*** PIPE_FORMAT_S8_USCALED_Z24_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,
+                    unsigned dst_stride)
+{
+   const double scale = 1.0 / ((1 << 24) - 1);
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      float *pRow = p;
+      for (j = 0; j < w; j++, pRow += 4) {
+         pRow[0] =
+         pRow[1] =
+         pRow[2] =
+         pRow[3] = (float) (scale * (*src++ >> 8));
+      }
+      p += dst_stride;
+   }
+}
+
+/*** PIPE_FORMAT_S8X24_USCALED ***/
+
+/**
+ * Return S component as four uint32_t in [0..255].  Z part ignored.
+ */
+static void
+s8x24_get_tile_rgba(const unsigned *src,
+                    unsigned w, unsigned h,
+                    float *p,
+                    unsigned dst_stride)
+{
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      float *pRow = p;
+
+      for (j = 0; j < w; j++, pRow += 4) {
+         pRow[0] =
+         pRow[1] =
+         pRow[2] =
+         pRow[3] = (float)((*src++ >> 24) & 0xff);
+      }
+
+      p += dst_stride;
+   }
+}
+
+/*** PIPE_FORMAT_X24S8_USCALED ***/
+
+/**
+ * Return S component as four uint32_t in [0..255].  Z part ignored.
+ */
+static void
+x24s8_get_tile_rgba(const unsigned *src,
+                    unsigned w, unsigned h,
+                    float *p,
+                    unsigned dst_stride)
+{
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      float *pRow = p;
+      for (j = 0; j < w; j++, pRow += 4) {
+         pRow[0] =
+         pRow[1] =
+         pRow[2] =
+         pRow[3] = (float)(*src++ & 0xff);
+      }
+      p += dst_stride;
+   }
+}
+
+
+/**
+ * Return S component as four uint32_t in [0..255].  Z part ignored.
+ */
+static void
+s8_get_tile_rgba(const unsigned char *src,
+		 unsigned w, unsigned h,
+		 float *p,
+		 unsigned dst_stride)
+{
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      float *pRow = p;
+      for (j = 0; j < w; j++, pRow += 4) {
+         pRow[0] =
+         pRow[1] =
+         pRow[2] =
+         pRow[3] = (float)(*src++ & 0xff);
+      }
+      p += dst_stride;
+   }
+}
+
+/*** 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 dst_stride)
+{
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      float *pRow = p;
+      for (j = 0; j < w; j++, pRow += 4) {
+         pRow[0] =
+         pRow[1] =
+         pRow[2] =
+         pRow[3] = *src++;
+      }
+      p += dst_stride;
+   }
+}
+
+/*** PIPE_FORMAT_Z32_FLOAT_S8X24_USCALED ***/
+
+/**
+ * Return each Z value as four floats in [0,1].
+ */
+static void
+z32f_x24s8_get_tile_rgba(const float *src,
+                         unsigned w, unsigned h,
+                         float *p,
+                         unsigned dst_stride)
+{
+   unsigned i, j;
+
+   for (i = 0; i < h; i++) {
+      float *pRow = p;
+      for (j = 0; j < w; j++, pRow += 4) {
+         pRow[0] =
+         pRow[1] =
+         pRow[2] =
+         pRow[3] = *src;
+         src += 2;
+      }
+      p += dst_stride;
+   }
+}
+
+
+void
+pipe_tile_raw_to_rgba(enum pipe_format format,
+                      void *src,
+                      uint w, uint h,
+                      float *dst, unsigned dst_stride)
+{
+   switch (format) {
+   case PIPE_FORMAT_Z16_UNORM:
+      z16_get_tile_rgba((ushort *) src, w, h, dst, dst_stride);
+      break;
+   case PIPE_FORMAT_Z32_UNORM:
+      z32_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);
+      break;
+   case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
+   case PIPE_FORMAT_Z24X8_UNORM:
+      s8z24_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);
+      break;
+   case PIPE_FORMAT_S8_USCALED:
+      s8_get_tile_rgba((unsigned char *) src, w, h, dst, dst_stride);
+      break;
+   case PIPE_FORMAT_X24S8_USCALED:
+      s8x24_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);
+      break;
+   case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
+   case PIPE_FORMAT_X8Z24_UNORM:
+      z24s8_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);
+      break;
+   case PIPE_FORMAT_S8X24_USCALED:
+      x24s8_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);
+      break;
+   case PIPE_FORMAT_Z32_FLOAT:
+      z32f_get_tile_rgba((float *) src, w, h, dst, dst_stride);
+      break;
+   case PIPE_FORMAT_Z32_FLOAT_S8X24_USCALED:
+      z32f_x24s8_get_tile_rgba((float *) src, w, h, dst, dst_stride);
+      break;
+   default:
+      util_format_read_4f(format,
+                          dst, dst_stride * sizeof(float),
+                          src, util_format_get_stride(format, w),
+                          0, 0, w, h);
+   }
+}
+
+
+void
+pipe_get_tile_rgba(struct pipe_context *pipe,
+                   struct pipe_transfer *pt,
+                   uint x, uint y, uint w, uint h,
+                   float *p)
+{
+   pipe_get_tile_rgba_format(pipe, pt, x, y, w, h, pt->resource->format, p);
+}
+
+
+void
+pipe_get_tile_rgba_format(struct pipe_context *pipe,
+                          struct pipe_transfer *pt,
+                          uint x, uint y, uint w, uint h,
+                          enum pipe_format format,
+                          float *p)
+{
+   unsigned dst_stride = w * 4;
+   void *packed;
+
+   if (u_clip_tile(x, y, &w, &h, &pt->box)) {
+      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(pipe, pt, x, y, w, h, packed, 0);
+
+   pipe_tile_raw_to_rgba(format, packed, w, h, p, dst_stride);
+
+   FREE(packed);
+}
+
+
+void
+pipe_put_tile_rgba(struct pipe_context *pipe,
+                   struct pipe_transfer *pt,
+                   uint x, uint y, uint w, uint h,
+                   const float *p)
+{
+   pipe_put_tile_rgba_format(pipe, pt, x, y, w, h, pt->resource->format, p);
+}
+
+
+void
+pipe_put_tile_rgba_format(struct pipe_context *pipe,
+                          struct pipe_transfer *pt,
+                          uint x, uint y, uint w, uint h,
+                          enum pipe_format format,
+                          const float *p)
+{
+   unsigned src_stride = w * 4;
+   void *packed;
+
+   if (u_clip_tile(x, y, &w, &h, &pt->box))
+      return;
+
+   packed = MALLOC(util_format_get_nblocks(format, w, h) * util_format_get_blocksize(format));
+
+   if (!packed)
+      return;
+
+   switch (format) {
+   case PIPE_FORMAT_Z16_UNORM:
+      /*z16_put_tile_rgba((ushort *) packed, w, h, p, src_stride);*/
+      break;
+   case PIPE_FORMAT_Z32_UNORM:
+      /*z32_put_tile_rgba((unsigned *) packed, w, h, p, src_stride);*/
+      break;
+   case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
+   case PIPE_FORMAT_Z24X8_UNORM:
+      /*s8z24_put_tile_rgba((unsigned *) packed, w, h, p, src_stride);*/
+      break;
+   case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
+   case PIPE_FORMAT_X8Z24_UNORM:
+      /*z24s8_put_tile_rgba((unsigned *) packed, w, h, p, src_stride);*/
+      break;
+   case PIPE_FORMAT_Z32_FLOAT:
+      /*z32f_put_tile_rgba((unsigned *) packed, w, h, p, src_stride);*/
+      break;
+   case PIPE_FORMAT_Z32_FLOAT_S8X24_USCALED:
+      /*z32f_s8x24_put_tile_rgba((unsigned *) packed, w, h, p, src_stride);*/
+      break;
+   default:
+      util_format_write_4f(format,
+                           p, src_stride * sizeof(float),
+                           packed, util_format_get_stride(format, w),
+                           0, 0, w, h);
+   }
+
+   pipe_put_tile_raw(pipe, pt, x, y, w, h, packed, 0);
+
+   FREE(packed);
+}
+
+
+/**
+ * Get a block of Z values, converted to 32-bit range.
+ */
+void
+pipe_get_tile_z(struct pipe_context *pipe,
+                struct pipe_transfer *pt,
+                uint x, uint y, uint w, uint h,
+                uint *z)
+{
+   const uint dstStride = w;
+   ubyte *map;
+   uint *pDest = z;
+   uint i, j;
+   enum pipe_format format = pt->resource->format;
+
+   if (u_clip_tile(x, y, &w, &h, &pt->box))
+      return;
+
+   map = (ubyte *)pipe->transfer_map(pipe, pt);
+   if (!map) {
+      assert(0);
+      return;
+   }
+
+   switch (format) {
+   case PIPE_FORMAT_Z32_UNORM:
+      {
+         const uint *ptrc
+            = (const uint *)(map  + y * pt->stride + x*4);
+         for (i = 0; i < h; i++) {
+            memcpy(pDest, ptrc, 4 * w);
+            pDest += dstStride;
+            ptrc += pt->stride/4;
+         }
+      }
+      break;
+   case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
+   case PIPE_FORMAT_Z24X8_UNORM:
+      {
+         const uint *ptrc
+            = (const uint *)(map + y * pt->stride + x*4);
+         for (i = 0; i < h; i++) {
+            for (j = 0; j < w; j++) {
+               /* convert 24-bit Z to 32-bit Z */
+               pDest[j] = (ptrc[j] << 8) | ((ptrc[j] >> 16) & 0xff);
+            }
+            pDest += dstStride;
+            ptrc += pt->stride/4;
+         }
+      }
+      break;
+   case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
+   case PIPE_FORMAT_X8Z24_UNORM:
+      {
+         const uint *ptrc
+            = (const uint *)(map + y * pt->stride + x*4);
+         for (i = 0; i < h; i++) {
+            for (j = 0; j < w; j++) {
+               /* convert 24-bit Z to 32-bit Z */
+               pDest[j] = (ptrc[j] & 0xffffff00) | ((ptrc[j] >> 24) & 0xff);
+            }
+            pDest += dstStride;
+            ptrc += pt->stride/4;
+         }
+      }
+      break;
+   case PIPE_FORMAT_Z16_UNORM:
+      {
+         const ushort *ptrc
+            = (const ushort *)(map + y * pt->stride + x*2);
+         for (i = 0; i < h; i++) {
+            for (j = 0; j < w; j++) {
+               /* convert 16-bit Z to 32-bit Z */
+               pDest[j] = (ptrc[j] << 16) | ptrc[j];
+            }
+            pDest += dstStride;
+            ptrc += pt->stride/2;
+         }
+      }
+      break;
+   default:
+      assert(0);
+   }
+
+   pipe->transfer_unmap(pipe, pt);
+}
+
+
+void
+pipe_put_tile_z(struct pipe_context *pipe,
+                struct pipe_transfer *pt,
+                uint x, uint y, uint w, uint h,
+                const uint *zSrc)
+{
+   const uint srcStride = w;
+   const uint *ptrc = zSrc;
+   ubyte *map;
+   uint i, j;
+   enum pipe_format format = pt->resource->format;
+
+   if (u_clip_tile(x, y, &w, &h, &pt->box))
+      return;
+
+   map = (ubyte *)pipe->transfer_map(pipe, pt);
+   if (!map) {
+      assert(0);
+      return;
+   }
+
+   switch (format) {
+   case PIPE_FORMAT_Z32_UNORM:
+      {
+         uint *pDest = (uint *) (map + y * pt->stride + x*4);
+         for (i = 0; i < h; i++) {
+            memcpy(pDest, ptrc, 4 * w);
+            pDest += pt->stride/4;
+            ptrc += srcStride;
+         }
+      }
+      break;
+   case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
+      {
+         uint *pDest = (uint *) (map + y * pt->stride + x*4);
+         /*assert((pt->usage & PIPE_TRANSFER_READ_WRITE) == PIPE_TRANSFER_READ_WRITE);*/
+         for (i = 0; i < h; i++) {
+            for (j = 0; j < w; j++) {
+               /* convert 32-bit Z to 24-bit Z, preserve stencil */
+               pDest[j] = (pDest[j] & 0xff000000) | ptrc[j] >> 8;
+            }
+            pDest += pt->stride/4;
+            ptrc += srcStride;
+         }
+      }
+      break;
+   case PIPE_FORMAT_Z24X8_UNORM:
+      {
+         uint *pDest = (uint *) (map + y * pt->stride + x*4);
+         for (i = 0; i < h; i++) {
+            for (j = 0; j < w; j++) {
+               /* convert 32-bit Z to 24-bit Z (0 stencil) */
+               pDest[j] = ptrc[j] >> 8;
+            }
+            pDest += pt->stride/4;
+            ptrc += srcStride;
+         }
+      }
+      break;
+   case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
+      {
+         uint *pDest = (uint *) (map + y * pt->stride + x*4);
+         /*assert((pt->usage & PIPE_TRANSFER_READ_WRITE) == PIPE_TRANSFER_READ_WRITE);*/
+         for (i = 0; i < h; i++) {
+            for (j = 0; j < w; j++) {
+               /* convert 32-bit Z to 24-bit Z, preserve stencil */
+               pDest[j] = (pDest[j] & 0xff) | (ptrc[j] & 0xffffff00);
+            }
+            pDest += pt->stride/4;
+            ptrc += srcStride;
+         }
+      }
+      break;
+   case PIPE_FORMAT_X8Z24_UNORM:
+      {
+         uint *pDest = (uint *) (map + y * pt->stride + x*4);
+         for (i = 0; i < h; i++) {
+            for (j = 0; j < w; j++) {
+               /* convert 32-bit Z to 24-bit Z (0 stencil) */
+               pDest[j] = ptrc[j] & 0xffffff00;
+            }
+            pDest += pt->stride/4;
+            ptrc += srcStride;
+         }
+      }
+      break;
+   case PIPE_FORMAT_Z16_UNORM:
+      {
+         ushort *pDest = (ushort *) (map + y * pt->stride + x*2);
+         for (i = 0; i < h; i++) {
+            for (j = 0; j < w; j++) {
+               /* convert 32-bit Z to 16-bit Z */
+               pDest[j] = ptrc[j] >> 16;
+            }
+            pDest += pt->stride/2;
+            ptrc += srcStride;
+         }
+      }
+      break;
+   default:
+      assert(0);
+   }
+
+   pipe->transfer_unmap(pipe, pt);
+}
+
+