4 files changed, 251 insertions, 172 deletions
diff --git a/mesalib/src/gallium/auxiliary/util/u_format.c b/mesalib/src/gallium/auxiliary/util/u_format.c
index 700382a0f..9bf42583e 100644
--- a/mesalib/src/gallium/auxiliary/util/u_format.c
+++ b/mesalib/src/gallium/auxiliary/util/u_format.c
@@ -432,6 +432,50 @@ util_format_translate(enum pipe_format dst_format,
     * TODO: Add a special case for formats that are mere swizzles of each other
     */
 
+   if (src_format_desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS ||
+       dst_format_desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS) {
+      float *tmp_z = NULL;
+      uint8_t *tmp_s = NULL;
+
+      assert(x_step == 1);
+      assert(y_step == 1);
+
+      if (src_format_desc->unpack_z_float &&
+          dst_format_desc->pack_z_float) {
+         tmp_z = MALLOC(width * sizeof *tmp_z);
+      }
+
+      if (src_format_desc->unpack_s_8uscaled &&
+          dst_format_desc->pack_s_8uscaled) {
+         tmp_s = MALLOC(width * sizeof *tmp_s);
+      }
+
+      while (height--) {
+         if (tmp_z) {
+            src_format_desc->unpack_z_float(tmp_z, 0, src_row, src_stride, width, 1);
+            dst_format_desc->pack_z_float(dst_row, dst_stride, tmp_z, 0, width, 1);
+         }
+
+         if (tmp_s) {
+            src_format_desc->unpack_s_8uscaled(tmp_s, 0, src_row, src_stride, width, 1);
+            dst_format_desc->pack_s_8uscaled(dst_row, dst_stride, tmp_s, 0, width, 1);
+         }
+
+         dst_row += dst_step;
+         src_row += src_step;
+      }
+
+      if (tmp_s) {
+         FREE(tmp_s);
+      }
+
+      if (tmp_z) {
+         FREE(tmp_z);
+      }
+
+      return;
+   }
+
    if (util_format_fits_8unorm(src_format_desc) ||
        util_format_fits_8unorm(dst_format_desc)) {
       unsigned tmp_stride;
diff --git a/mesalib/src/gallium/auxiliary/util/u_format.h b/mesalib/src/gallium/auxiliary/util/u_format.h
index 2eb3e1b80..98528ea59 100644
--- a/mesalib/src/gallium/auxiliary/util/u_format.h
+++ b/mesalib/src/gallium/auxiliary/util/u_format.h
@@ -411,6 +411,27 @@ util_format_is_s3tc(enum pipe_format format)
 }
 
 static INLINE boolean 
+util_format_is_srgb(enum pipe_format format)
+{
+   const struct util_format_description *desc = util_format_description(format);
+   return desc->colorspace == UTIL_FORMAT_COLORSPACE_SRGB;
+}
+
+static INLINE boolean
+util_format_has_depth(const struct util_format_description *desc)
+{
+   return desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS &&
+          desc->swizzle[0] != UTIL_FORMAT_SWIZZLE_NONE;
+}
+
+static INLINE boolean
+util_format_has_stencil(const struct util_format_description *desc)
+{
+   return desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS &&
+          desc->swizzle[1] != UTIL_FORMAT_SWIZZLE_NONE;
+}
+
+static INLINE boolean
 util_format_is_depth_or_stencil(enum pipe_format format)
 {
    const struct util_format_description *desc = util_format_description(format);
@@ -420,10 +441,11 @@ util_format_is_depth_or_stencil(enum pipe_format format)
       return FALSE;
    }
 
-   return desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS ? TRUE : FALSE;
+   return util_format_has_depth(desc) ||
+          util_format_has_stencil(desc);
 }
 
-static INLINE boolean 
+static INLINE boolean
 util_format_is_depth_and_stencil(enum pipe_format format)
 {
    const struct util_format_description *desc = util_format_description(format);
@@ -433,12 +455,8 @@ util_format_is_depth_and_stencil(enum pipe_format format)
       return FALSE;
    }
 
-   if (desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS) {
-      return FALSE;
-   }
-
-   return (desc->swizzle[0] != UTIL_FORMAT_SWIZZLE_NONE &&
-           desc->swizzle[1] != UTIL_FORMAT_SWIZZLE_NONE) ? TRUE : FALSE;
+   return util_format_has_depth(desc) &&
+          util_format_has_stencil(desc);
 }
 
 
diff --git a/mesalib/src/gallium/auxiliary/util/u_math.h b/mesalib/src/gallium/auxiliary/util/u_math.h
index 46d932293..c74c1da76 100644
--- a/mesalib/src/gallium/auxiliary/util/u_math.h
+++ b/mesalib/src/gallium/auxiliary/util/u_math.h
@@ -424,6 +424,22 @@ unsigned ffs( unsigned u )
 #endif
 
 
+/* Destructively loop over all of the bits in a mask as in:
+ *
+ * while (mymask) {
+ *   int i = u_bit_scan(&mymask);
+ *   ... process element i
+ * }
+ * 
+ */
+static INLINE int u_bit_scan(unsigned *mask)
+{
+   int i = ffs(*mask) - 1;
+   *mask &= ~(1 << i);
+   return i;
+}
+
+
 /**
  * Return float bits.
  */
diff --git a/mesalib/src/gallium/auxiliary/util/u_rect.c b/mesalib/src/gallium/auxiliary/util/u_rect.c
index b11fff791..59bebbcb7 100644
--- a/mesalib/src/gallium/auxiliary/util/u_rect.c
+++ b/mesalib/src/gallium/auxiliary/util/u_rect.c
@@ -1,164 +1,165 @@
-/**************************************************************************
- * 
- * Copyright 2008 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.
- * 
- **************************************************************************/
-
-/**
- * Rectangle-related helper functions.
- */
-
-
-#include "util/u_format.h"
-#include "util/u_rect.h"
-#include "util/u_pack_color.h"
-
-
-/**
- * Copy 2D rect from one place to another.
- * Position and sizes are in pixels.
- * src_stride may be negative to do vertical flip of pixels from source.
- */
-void
-util_copy_rect(ubyte * dst,
-               enum pipe_format format,
-               unsigned dst_stride,
-               unsigned dst_x,
-               unsigned dst_y,
-               unsigned width,
-               unsigned height,
-               const ubyte * src,
-               int src_stride,
-               unsigned src_x, 
-               unsigned src_y)
-{
-   unsigned i;
-   int src_stride_pos = src_stride < 0 ? -src_stride : src_stride;
-   int blocksize = util_format_get_blocksize(format);
-   int blockwidth = util_format_get_blockwidth(format);
-   int blockheight = util_format_get_blockheight(format);
-
-   assert(blocksize > 0);
-   assert(blockwidth > 0);
-   assert(blockheight > 0);
-
-   dst_x /= blockwidth;
-   dst_y /= blockheight;
-   width = (width + blockwidth - 1)/blockwidth;
-   height = (height + blockheight - 1)/blockheight;
-   src_x /= blockwidth;
-   src_y /= blockheight;
-   
-   dst += dst_x * blocksize;
-   src += src_x * blocksize;
-   dst += dst_y * dst_stride;
-   src += src_y * src_stride_pos;
-   width *= blocksize;
-
-   if (width == dst_stride && width == src_stride)
-      memcpy(dst, src, height * width);
-   else {
-      for (i = 0; i < height; i++) {
-         memcpy(dst, src, width);
-         dst += dst_stride;
-         src += src_stride;
-      }
-   }
-}
-
-void
-util_fill_rect(ubyte * dst,
-               enum pipe_format format,
-               unsigned dst_stride,
-               unsigned dst_x,
-               unsigned dst_y,
-               unsigned width,
-               unsigned height,
-               union util_color *uc)
-{
-   unsigned i, j;
-   unsigned width_size;
-   int blocksize = util_format_get_blocksize(format);
-   int blockwidth = util_format_get_blockwidth(format);
-   int blockheight = util_format_get_blockheight(format);
-
-   assert(blocksize > 0);
-   assert(blockwidth > 0);
-   assert(blockheight > 0);
-
-   dst_x /= blockwidth;
-   dst_y /= blockheight;
-   width = (width + blockwidth - 1)/blockwidth;
-   height = (height + blockheight - 1)/blockheight;
-
-   dst += dst_x * blocksize;
-   dst += dst_y * dst_stride;
-   width_size = width * blocksize;
-
-   switch (blocksize) {
-   case 1:
-      if(dst_stride == width_size)
-         memset(dst, uc->ub, height * width_size);
-      else {
-         for (i = 0; i < height; i++) {
-            memset(dst, uc->ub, width_size);
-            dst += dst_stride;
-         }
-      }
-      break;
-   case 2:
-      for (i = 0; i < height; i++) {
-         uint16_t *row = (uint16_t *)dst;
-         for (j = 0; j < width; j++)
-            *row++ = uc->us;
-         dst += dst_stride;
-      }
-      break;
-   case 4:
-      for (i = 0; i < height; i++) {
-         uint32_t *row = (uint32_t *)dst;
-         for (j = 0; j < width; j++)
-            *row++ = uc->ui;
-         dst += dst_stride;
-      }
-      break;
-   case 8:
-   case 12:
-   case 16:
-   case 24:
-   case 32:
-      for (i = 0; i < height; i++) {
-         ubyte *row = dst;
-         for (j = 0; j < width; j++) {
-            memcpy(row, uc, blocksize);
-            row += blocksize;
-         }
-         dst += dst_stride;
-      }
-      break;
-   default:
-      assert(0);
-      break;
-   }
-}
+/**************************************************************************
+ * 
+ * Copyright 2008 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.
+ * 
+ **************************************************************************/
+
+/**
+ * Rectangle-related helper functions.
+ */
+
+
+#include "util/u_format.h"
+#include "util/u_rect.h"
+#include "util/u_pack_color.h"
+
+
+/**
+ * Copy 2D rect from one place to another.
+ * Position and sizes are in pixels.
+ * src_stride may be negative to do vertical flip of pixels from source.
+ */
+void
+util_copy_rect(ubyte * dst,
+               enum pipe_format format,
+               unsigned dst_stride,
+               unsigned dst_x,
+               unsigned dst_y,
+               unsigned width,
+               unsigned height,
+               const ubyte * src,
+               int src_stride,
+               unsigned src_x, 
+               unsigned src_y)
+{
+   unsigned i;
+   int src_stride_pos = src_stride < 0 ? -src_stride : src_stride;
+   int blocksize = util_format_get_blocksize(format);
+   int blockwidth = util_format_get_blockwidth(format);
+   int blockheight = util_format_get_blockheight(format);
+
+   assert(blocksize > 0);
+   assert(blockwidth > 0);
+   assert(blockheight > 0);
+
+   dst_x /= blockwidth;
+   dst_y /= blockheight;
+   width = (width + blockwidth - 1)/blockwidth;
+   height = (height + blockheight - 1)/blockheight;
+   src_x /= blockwidth;
+   src_y /= blockheight;
+   
+   dst += dst_x * blocksize;
+   src += src_x * blocksize;
+   dst += dst_y * dst_stride;
+   src += src_y * src_stride_pos;
+   width *= blocksize;
+
+   if (width == dst_stride && width == src_stride)
+      memcpy(dst, src, height * width);
+   else {
+      for (i = 0; i < height; i++) {
+         memcpy(dst, src, width);
+         dst += dst_stride;
+         src += src_stride;
+      }
+   }
+}
+
+void
+util_fill_rect(ubyte * dst,
+               enum pipe_format format,
+               unsigned dst_stride,
+               unsigned dst_x,
+               unsigned dst_y,
+               unsigned width,
+               unsigned height,
+               union util_color *uc)
+{
+   const struct util_format_description *desc = util_format_description(format);
+   unsigned i, j;
+   unsigned width_size;
+   int blocksize = desc->block.bits / 8;
+   int blockwidth = desc->block.width;
+   int blockheight = desc->block.height;
+
+   assert(blocksize > 0);
+   assert(blockwidth > 0);
+   assert(blockheight > 0);
+
+   dst_x /= blockwidth;
+   dst_y /= blockheight;
+   width = (width + blockwidth - 1)/blockwidth;
+   height = (height + blockheight - 1)/blockheight;
+
+   dst += dst_x * blocksize;
+   dst += dst_y * dst_stride;
+   width_size = width * blocksize;
+
+   switch (blocksize) {
+   case 1:
+      if(dst_stride == width_size)
+         memset(dst, uc->ub, height * width_size);
+      else {
+         for (i = 0; i < height; i++) {
+            memset(dst, uc->ub, width_size);
+            dst += dst_stride;
+         }
+      }
+      break;
+   case 2:
+      for (i = 0; i < height; i++) {
+         uint16_t *row = (uint16_t *)dst;
+         for (j = 0; j < width; j++)
+            *row++ = uc->us;
+         dst += dst_stride;
+      }
+      break;
+   case 4:
+      for (i = 0; i < height; i++) {
+         uint32_t *row = (uint32_t *)dst;
+         for (j = 0; j < width; j++)
+            *row++ = uc->ui;
+         dst += dst_stride;
+      }
+      break;
+   case 8:
+   case 12:
+   case 16:
+   case 24:
+   case 32:
+      for (i = 0; i < height; i++) {
+         ubyte *row = dst;
+         for (j = 0; j < width; j++) {
+            memcpy(row, uc, blocksize);
+            row += blocksize;
+         }
+         dst += dst_stride;
+      }
+      break;
+   default:
+      assert(0);
+      break;
+   }
+}