xserver fontconfig libX11 libXext libxcb mesa git update 21 Mar 2014

xserver          commit 4fb31e4824d46edc80bb49b4065152899faa5ac6
libxcb           commit cb686b576739deea00180c54697c8b62b8419ae0
libX11           commit 8be4610939b833587954957f5963eb4191b43d19
libXext          commit 11aad96bd689d54156064d2e81213dc827a689d1
fontconfig       commit 5478192f379d784b421329e4bf72cc780818e467
mesa             commit 8d8d0cb09eb8735a04fc36cc4d0e2dc9f9d460eb

4 files changed, 41 insertions, 1192 deletions

diff --git a/mesalib/src/gallium/auxiliary/util/u_format.csv b/mesalib/src/gallium/auxiliary/util/u_format.csv
index 8fb068b81..8aa5c364d 100644
--- a/mesalib/src/gallium/auxiliary/util/u_format.csv
+++ b/mesalib/src/gallium/auxiliary/util/u_format.csv
@@ -373,3 +373,6 @@ PIPE_FORMAT_R16A16_SINT             , plain, 1, 1, sp16 , sp16 ,     ,     , x00
 PIPE_FORMAT_R32A32_UINT             , plain, 1, 1, up32 , up32 ,     ,     , x00y, rgb
 PIPE_FORMAT_R32A32_SINT             , plain, 1, 1, sp32 , sp32 ,     ,     , x00y, rgb
 PIPE_FORMAT_R10G10B10A2_UINT        , plain, 1, 1, up10 , up10 , up10, up2 , xyzw, rgb
+
+PIPE_FORMAT_B5G6R5_SRGB             , plain, 1, 1, un5 , un6 , un5 ,     , zyx1, srgb
+
diff --git a/mesalib/src/gallium/auxiliary/util/u_format.h b/mesalib/src/gallium/auxiliary/util/u_format.h
index 747e1429d..1dd5d52f1 100644
--- a/mesalib/src/gallium/auxiliary/util/u_format.h
+++ b/mesalib/src/gallium/auxiliary/util/u_format.h
@@ -906,6 +906,8 @@ util_format_srgb(enum pipe_format format)
       return PIPE_FORMAT_DXT3_SRGBA;
    case PIPE_FORMAT_DXT5_RGBA:
       return PIPE_FORMAT_DXT5_SRGBA;
+   case PIPE_FORMAT_B5G6R5_UNORM:
+      return PIPE_FORMAT_B5G6R5_SRGB;
    default:
       return PIPE_FORMAT_NONE;
    }
@@ -949,6 +951,8 @@ util_format_linear(enum pipe_format format)
       return PIPE_FORMAT_DXT3_RGBA;
    case PIPE_FORMAT_DXT5_SRGBA:
       return PIPE_FORMAT_DXT5_RGBA;
+   case PIPE_FORMAT_B5G6R5_SRGB:
+      return PIPE_FORMAT_B5G6R5_UNORM;
    default:
       return format;
    }
diff --git a/mesalib/src/gallium/auxiliary/util/u_format_pack.py b/mesalib/src/gallium/auxiliary/util/u_format_pack.py
index d1f68c804..8072fdb13 100644
--- a/mesalib/src/gallium/auxiliary/util/u_format_pack.py
+++ b/mesalib/src/gallium/auxiliary/util/u_format_pack.py
@@ -272,8 +272,11 @@ def conversion_expr(src_channel,
         if src_colorspace == SRGB:
             assert src_channel.type == UNSIGNED
             assert src_channel.norm
-            assert src_channel.size == 8
+            assert src_channel.size <= 8
+            assert src_channel.size >= 4
             assert dst_colorspace == RGB
+            if src_channel.size < 8:
+                value = '%s << %x | %s >> %x' % (value, 8 - src_channel.size, value, 2 * src_channel.size - 8)
             if dst_channel.type == FLOAT:
                 return 'util_format_srgb_8unorm_to_linear_float(%s)' % value
             else:
@@ -284,15 +287,20 @@ def conversion_expr(src_channel,
         elif dst_colorspace == SRGB:
             assert dst_channel.type == UNSIGNED
             assert dst_channel.norm
-            assert dst_channel.size == 8
+            assert dst_channel.size <= 8
             assert src_colorspace == RGB
             if src_channel.type == FLOAT:
-                return 'util_format_linear_float_to_srgb_8unorm(%s)' % value
+                value =  'util_format_linear_float_to_srgb_8unorm(%s)' % value
             else:
                 assert src_channel.type == UNSIGNED
                 assert src_channel.norm
                 assert src_channel.size == 8
-                return 'util_format_linear_to_srgb_8unorm(%s)' % value
+                value = 'util_format_linear_to_srgb_8unorm(%s)' % value
+            # XXX rounding is all wrong.
+            if dst_channel.size < 8:
+                return '%s >> %x' % (value, 8 - dst_channel.size)
+            else:
+                return value
         elif src_colorspace == ZS:
             pass
         elif dst_colorspace == ZS:
diff --git a/mesalib/src/gallium/auxiliary/util/u_gen_mipmap.c b/mesalib/src/gallium/auxiliary/util/u_gen_mipmap.c
index dad3ad2ec..a2f42189f 100644
--- a/mesalib/src/gallium/auxiliary/util/u_gen_mipmap.c
+++ b/mesalib/src/gallium/auxiliary/util/u_gen_mipmap.c
@@ -78,1165 +78,6 @@ struct gen_mipmap_state
 };
 
 
-
-enum dtype
-{
-   DTYPE_UBYTE,
-   DTYPE_UBYTE_3_3_2,
-   DTYPE_USHORT,
-   DTYPE_USHORT_4_4_4_4,
-   DTYPE_USHORT_5_6_5,
-   DTYPE_USHORT_1_5_5_5_REV,
-   DTYPE_UINT,
-   DTYPE_FLOAT,
-   DTYPE_HALF_FLOAT
-};
-
-
-typedef uint16_t half_float;
-
-
-/**
- * \name Support macros for do_row and do_row_3d
- *
- * The macro madness is here for two reasons.  First, it compacts the code
- * slightly.  Second, it makes it much easier to adjust the specifics of the
- * filter to tune the rounding characteristics.
- */
-/*@{*/
-#define DECLARE_ROW_POINTERS(t, e) \
-      const t(*rowA)[e] = (const t(*)[e]) srcRowA; \
-      const t(*rowB)[e] = (const t(*)[e]) srcRowB; \
-      const t(*rowC)[e] = (const t(*)[e]) srcRowC; \
-      const t(*rowD)[e] = (const t(*)[e]) srcRowD; \
-      t(*dst)[e] = (t(*)[e]) dstRow
-
-#define DECLARE_ROW_POINTERS0(t) \
-      const t *rowA = (const t *) srcRowA; \
-      const t *rowB = (const t *) srcRowB; \
-      const t *rowC = (const t *) srcRowC; \
-      const t *rowD = (const t *) srcRowD; \
-      t *dst = (t *) dstRow
-
-#define FILTER_SUM_3D(Aj, Ak, Bj, Bk, Cj, Ck, Dj, Dk) \
-   ((unsigned) Aj + (unsigned) Ak \
-    + (unsigned) Bj + (unsigned) Bk \
-    + (unsigned) Cj + (unsigned) Ck \
-    + (unsigned) Dj + (unsigned) Dk \
-    + 4) >> 3
-
-#define FILTER_3D(e) \
-   do { \
-      dst[i][e] = FILTER_SUM_3D(rowA[j][e], rowA[k][e], \
-                                rowB[j][e], rowB[k][e], \
-                                rowC[j][e], rowC[k][e], \
-                                rowD[j][e], rowD[k][e]); \
-   } while(0)
-
-#define FILTER_F_3D(e) \
-   do { \
-      dst[i][e] = (rowA[j][e] + rowA[k][e] \
-                   + rowB[j][e] + rowB[k][e] \
-                   + rowC[j][e] + rowC[k][e] \
-                   + rowD[j][e] + rowD[k][e]) * 0.125F; \
-   } while(0)
-
-#define FILTER_HF_3D(e) \
-   do { \
-      const float aj = util_half_to_float(rowA[j][e]); \
-      const float ak = util_half_to_float(rowA[k][e]); \
-      const float bj = util_half_to_float(rowB[j][e]); \
-      const float bk = util_half_to_float(rowB[k][e]); \
-      const float cj = util_half_to_float(rowC[j][e]); \
-      const float ck = util_half_to_float(rowC[k][e]); \
-      const float dj = util_half_to_float(rowD[j][e]); \
-      const float dk = util_half_to_float(rowD[k][e]); \
-      dst[i][e] = util_float_to_half((aj + ak + bj + bk + cj + ck + dj + dk) \
-                                      * 0.125F); \
-   } while(0)
-/*@}*/
-
-
-/**
- * Average together two rows of a source image to produce a single new
- * row in the dest image.  It's legal for the two source rows to point
- * to the same data.  The source width must be equal to either the
- * dest width or two times the dest width.
- * \param datatype  GL_UNSIGNED_BYTE, GL_UNSIGNED_SHORT, GL_FLOAT, etc.
- * \param comps  number of components per pixel (1..4)
- */
-static void
-do_row(enum dtype datatype, uint comps, int srcWidth,
-       const void *srcRowA, const void *srcRowB,
-       int dstWidth, void *dstRow)
-{
-   const uint k0 = (srcWidth == dstWidth) ? 0 : 1;
-   const uint colStride = (srcWidth == dstWidth) ? 1 : 2;
-
-   assert(comps >= 1);
-   assert(comps <= 4);
-
-   /* This assertion is no longer valid with non-power-of-2 textures
-   assert(srcWidth == dstWidth || srcWidth == 2 * dstWidth);
-   */
-
-   if (datatype == DTYPE_UBYTE && comps == 4) {
-      uint i, j, k;
-      const ubyte(*rowA)[4] = (const ubyte(*)[4]) srcRowA;
-      const ubyte(*rowB)[4] = (const ubyte(*)[4]) srcRowB;
-      ubyte(*dst)[4] = (ubyte(*)[4]) dstRow;
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4;
-         dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4;
-         dst[i][2] = (rowA[j][2] + rowA[k][2] + rowB[j][2] + rowB[k][2]) / 4;
-         dst[i][3] = (rowA[j][3] + rowA[k][3] + rowB[j][3] + rowB[k][3]) / 4;
-      }
-   }
-   else if (datatype == DTYPE_UBYTE && comps == 3) {
-      uint i, j, k;
-      const ubyte(*rowA)[3] = (const ubyte(*)[3]) srcRowA;
-      const ubyte(*rowB)[3] = (const ubyte(*)[3]) srcRowB;
-      ubyte(*dst)[3] = (ubyte(*)[3]) dstRow;
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4;
-         dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4;
-         dst[i][2] = (rowA[j][2] + rowA[k][2] + rowB[j][2] + rowB[k][2]) / 4;
-      }
-   }
-   else if (datatype == DTYPE_UBYTE && comps == 2) {
-      uint i, j, k;
-      const ubyte(*rowA)[2] = (const ubyte(*)[2]) srcRowA;
-      const ubyte(*rowB)[2] = (const ubyte(*)[2]) srcRowB;
-      ubyte(*dst)[2] = (ubyte(*)[2]) dstRow;
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) >> 2;
-         dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) >> 2;
-      }
-   }
-   else if (datatype == DTYPE_UBYTE && comps == 1) {
-      uint i, j, k;
-      const ubyte *rowA = (const ubyte *) srcRowA;
-      const ubyte *rowB = (const ubyte *) srcRowB;
-      ubyte *dst = (ubyte *) dstRow;
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         dst[i] = (rowA[j] + rowA[k] + rowB[j] + rowB[k]) >> 2;
-      }
-   }
-
-   else if (datatype == DTYPE_USHORT && comps == 4) {
-      uint i, j, k;
-      const ushort(*rowA)[4] = (const ushort(*)[4]) srcRowA;
-      const ushort(*rowB)[4] = (const ushort(*)[4]) srcRowB;
-      ushort(*dst)[4] = (ushort(*)[4]) dstRow;
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4;
-         dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4;
-         dst[i][2] = (rowA[j][2] + rowA[k][2] + rowB[j][2] + rowB[k][2]) / 4;
-         dst[i][3] = (rowA[j][3] + rowA[k][3] + rowB[j][3] + rowB[k][3]) / 4;
-      }
-   }
-   else if (datatype == DTYPE_USHORT && comps == 3) {
-      uint i, j, k;
-      const ushort(*rowA)[3] = (const ushort(*)[3]) srcRowA;
-      const ushort(*rowB)[3] = (const ushort(*)[3]) srcRowB;
-      ushort(*dst)[3] = (ushort(*)[3]) dstRow;
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4;
-         dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4;
-         dst[i][2] = (rowA[j][2] + rowA[k][2] + rowB[j][2] + rowB[k][2]) / 4;
-      }
-   }
-   else if (datatype == DTYPE_USHORT && comps == 2) {
-      uint i, j, k;
-      const ushort(*rowA)[2] = (const ushort(*)[2]) srcRowA;
-      const ushort(*rowB)[2] = (const ushort(*)[2]) srcRowB;
-      ushort(*dst)[2] = (ushort(*)[2]) dstRow;
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4;
-         dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4;
-      }
-   }
-   else if (datatype == DTYPE_USHORT && comps == 1) {
-      uint i, j, k;
-      const ushort *rowA = (const ushort *) srcRowA;
-      const ushort *rowB = (const ushort *) srcRowB;
-      ushort *dst = (ushort *) dstRow;
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         dst[i] = (rowA[j] + rowA[k] + rowB[j] + rowB[k]) / 4;
-      }
-   }
-
-   else if (datatype == DTYPE_FLOAT && comps == 4) {
-      uint i, j, k;
-      const float(*rowA)[4] = (const float(*)[4]) srcRowA;
-      const float(*rowB)[4] = (const float(*)[4]) srcRowB;
-      float(*dst)[4] = (float(*)[4]) dstRow;
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         dst[i][0] = (rowA[j][0] + rowA[k][0] +
-                      rowB[j][0] + rowB[k][0]) * 0.25F;
-         dst[i][1] = (rowA[j][1] + rowA[k][1] +
-                      rowB[j][1] + rowB[k][1]) * 0.25F;
-         dst[i][2] = (rowA[j][2] + rowA[k][2] +
-                      rowB[j][2] + rowB[k][2]) * 0.25F;
-         dst[i][3] = (rowA[j][3] + rowA[k][3] +
-                      rowB[j][3] + rowB[k][3]) * 0.25F;
-      }
-   }
-   else if (datatype == DTYPE_FLOAT && comps == 3) {
-      uint i, j, k;
-      const float(*rowA)[3] = (const float(*)[3]) srcRowA;
-      const float(*rowB)[3] = (const float(*)[3]) srcRowB;
-      float(*dst)[3] = (float(*)[3]) dstRow;
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         dst[i][0] = (rowA[j][0] + rowA[k][0] +
-                      rowB[j][0] + rowB[k][0]) * 0.25F;
-         dst[i][1] = (rowA[j][1] + rowA[k][1] +
-                      rowB[j][1] + rowB[k][1]) * 0.25F;
-         dst[i][2] = (rowA[j][2] + rowA[k][2] +
-                      rowB[j][2] + rowB[k][2]) * 0.25F;
-      }
-   }
-   else if (datatype == DTYPE_FLOAT && comps == 2) {
-      uint i, j, k;
-      const float(*rowA)[2] = (const float(*)[2]) srcRowA;
-      const float(*rowB)[2] = (const float(*)[2]) srcRowB;
-      float(*dst)[2] = (float(*)[2]) dstRow;
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         dst[i][0] = (rowA[j][0] + rowA[k][0] +
-                      rowB[j][0] + rowB[k][0]) * 0.25F;
-         dst[i][1] = (rowA[j][1] + rowA[k][1] +
-                      rowB[j][1] + rowB[k][1]) * 0.25F;
-      }
-   }
-   else if (datatype == DTYPE_FLOAT && comps == 1) {
-      uint i, j, k;
-      const float *rowA = (const float *) srcRowA;
-      const float *rowB = (const float *) srcRowB;
-      float *dst = (float *) dstRow;
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         dst[i] = (rowA[j] + rowA[k] + rowB[j] + rowB[k]) * 0.25F;
-      }
-   }
-
-   else if (datatype == DTYPE_HALF_FLOAT && comps == 4) {
-      uint i, j, k, comp;
-      const half_float(*rowA)[4] = (const half_float(*)[4]) srcRowA;
-      const half_float(*rowB)[4] = (const half_float(*)[4]) srcRowB;
-      half_float(*dst)[4] = (half_float(*)[4]) dstRow;
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         for (comp = 0; comp < 4; comp++) {
-            float aj, ak, bj, bk;
-            aj = util_half_to_float(rowA[j][comp]);
-            ak = util_half_to_float(rowA[k][comp]);
-            bj = util_half_to_float(rowB[j][comp]);
-            bk = util_half_to_float(rowB[k][comp]);
-            dst[i][comp] = util_float_to_half((aj + ak + bj + bk) * 0.25F);
-         }
-      }
-   }
-   else if (datatype == DTYPE_HALF_FLOAT && comps == 3) {
-      uint i, j, k, comp;
-      const half_float(*rowA)[3] = (const half_float(*)[3]) srcRowA;
-      const half_float(*rowB)[3] = (const half_float(*)[3]) srcRowB;
-      half_float(*dst)[3] = (half_float(*)[3]) dstRow;
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         for (comp = 0; comp < 3; comp++) {
-            float aj, ak, bj, bk;
-            aj = util_half_to_float(rowA[j][comp]);
-            ak = util_half_to_float(rowA[k][comp]);
-            bj = util_half_to_float(rowB[j][comp]);
-            bk = util_half_to_float(rowB[k][comp]);
-            dst[i][comp] = util_float_to_half((aj + ak + bj + bk) * 0.25F);
-         }
-      }
-   }
-   else if (datatype == DTYPE_HALF_FLOAT && comps == 2) {
-      uint i, j, k, comp;
-      const half_float(*rowA)[2] = (const half_float(*)[2]) srcRowA;
-      const half_float(*rowB)[2] = (const half_float(*)[2]) srcRowB;
-      half_float(*dst)[2] = (half_float(*)[2]) dstRow;
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         for (comp = 0; comp < 2; comp++) {
-            float aj, ak, bj, bk;
-            aj = util_half_to_float(rowA[j][comp]);
-            ak = util_half_to_float(rowA[k][comp]);
-            bj = util_half_to_float(rowB[j][comp]);
-            bk = util_half_to_float(rowB[k][comp]);
-            dst[i][comp] = util_float_to_half((aj + ak + bj + bk) * 0.25F);
-         }
-      }
-   }
-   else if (datatype == DTYPE_HALF_FLOAT && comps == 1) {
-      uint i, j, k;
-      const half_float *rowA = (const half_float *) srcRowA;
-      const half_float *rowB = (const half_float *) srcRowB;
-      half_float *dst = (half_float *) dstRow;
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         float aj, ak, bj, bk;
-         aj = util_half_to_float(rowA[j]);
-         ak = util_half_to_float(rowA[k]);
-         bj = util_half_to_float(rowB[j]);
-         bk = util_half_to_float(rowB[k]);
-         dst[i] = util_float_to_half((aj + ak + bj + bk) * 0.25F);
-      }
-   }
-
-   else if (datatype == DTYPE_UINT && comps == 1) {
-      uint i, j, k;
-      const uint *rowA = (const uint *) srcRowA;
-      const uint *rowB = (const uint *) srcRowB;
-      uint *dst = (uint *) dstRow;
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         dst[i] = rowA[j] / 4 + rowA[k] / 4 + rowB[j] / 4 + rowB[k] / 4;
-      }
-   }
-
-   else if (datatype == DTYPE_USHORT_5_6_5 && comps == 3) {
-      uint i, j, k;
-      const ushort *rowA = (const ushort *) srcRowA;
-      const ushort *rowB = (const ushort *) srcRowB;
-      ushort *dst = (ushort *) dstRow;
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         const int rowAr0 = rowA[j] & 0x1f;
-         const int rowAr1 = rowA[k] & 0x1f;
-         const int rowBr0 = rowB[j] & 0x1f;
-         const int rowBr1 = rowB[k] & 0x1f;
-         const int rowAg0 = (rowA[j] >> 5) & 0x3f;
-         const int rowAg1 = (rowA[k] >> 5) & 0x3f;
-         const int rowBg0 = (rowB[j] >> 5) & 0x3f;
-         const int rowBg1 = (rowB[k] >> 5) & 0x3f;
-         const int rowAb0 = (rowA[j] >> 11) & 0x1f;
-         const int rowAb1 = (rowA[k] >> 11) & 0x1f;
-         const int rowBb0 = (rowB[j] >> 11) & 0x1f;
-         const int rowBb1 = (rowB[k] >> 11) & 0x1f;
-         const int red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2;
-         const int green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2;
-         const int blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2;
-         dst[i] = (blue << 11) | (green << 5) | red;
-      }
-   }
-   else if (datatype == DTYPE_USHORT_4_4_4_4 && comps == 4) {
-      uint i, j, k;
-      const ushort *rowA = (const ushort *) srcRowA;
-      const ushort *rowB = (const ushort *) srcRowB;
-      ushort *dst = (ushort *) dstRow;
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         const int rowAr0 = rowA[j] & 0xf;
-         const int rowAr1 = rowA[k] & 0xf;
-         const int rowBr0 = rowB[j] & 0xf;
-         const int rowBr1 = rowB[k] & 0xf;
-         const int rowAg0 = (rowA[j] >> 4) & 0xf;
-         const int rowAg1 = (rowA[k] >> 4) & 0xf;
-         const int rowBg0 = (rowB[j] >> 4) & 0xf;
-         const int rowBg1 = (rowB[k] >> 4) & 0xf;
-         const int rowAb0 = (rowA[j] >> 8) & 0xf;
-         const int rowAb1 = (rowA[k] >> 8) & 0xf;
-         const int rowBb0 = (rowB[j] >> 8) & 0xf;
-         const int rowBb1 = (rowB[k] >> 8) & 0xf;
-         const int rowAa0 = (rowA[j] >> 12) & 0xf;
-         const int rowAa1 = (rowA[k] >> 12) & 0xf;
-         const int rowBa0 = (rowB[j] >> 12) & 0xf;
-         const int rowBa1 = (rowB[k] >> 12) & 0xf;
-         const int red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2;
-         const int green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2;
-         const int blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2;
-         const int alpha = (rowAa0 + rowAa1 + rowBa0 + rowBa1) >> 2;
-         dst[i] = (alpha << 12) | (blue << 8) | (green << 4) | red;
-      }
-   }
-   else if (datatype == DTYPE_USHORT_1_5_5_5_REV && comps == 4) {
-      uint i, j, k;
-      const ushort *rowA = (const ushort *) srcRowA;
-      const ushort *rowB = (const ushort *) srcRowB;
-      ushort *dst = (ushort *) dstRow;
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         const int rowAr0 = rowA[j] & 0x1f;
-         const int rowAr1 = rowA[k] & 0x1f;
-         const int rowBr0 = rowB[j] & 0x1f;
-         const int rowBr1 = rowB[k] & 0x1f;
-         const int rowAg0 = (rowA[j] >> 5) & 0x1f;
-         const int rowAg1 = (rowA[k] >> 5) & 0x1f;
-         const int rowBg0 = (rowB[j] >> 5) & 0x1f;
-         const int rowBg1 = (rowB[k] >> 5) & 0x1f;
-         const int rowAb0 = (rowA[j] >> 10) & 0x1f;
-         const int rowAb1 = (rowA[k] >> 10) & 0x1f;
-         const int rowBb0 = (rowB[j] >> 10) & 0x1f;
-         const int rowBb1 = (rowB[k] >> 10) & 0x1f;
-         const int rowAa0 = (rowA[j] >> 15) & 0x1;
-         const int rowAa1 = (rowA[k] >> 15) & 0x1;
-         const int rowBa0 = (rowB[j] >> 15) & 0x1;
-         const int rowBa1 = (rowB[k] >> 15) & 0x1;
-         const int red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2;
-         const int green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2;
-         const int blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2;
-         const int alpha = (rowAa0 + rowAa1 + rowBa0 + rowBa1) >> 2;
-         dst[i] = (alpha << 15) | (blue << 10) | (green << 5) | red;
-      }
-   }
-   else if (datatype == DTYPE_UBYTE_3_3_2 && comps == 3) {
-      uint i, j, k;
-      const ubyte *rowA = (const ubyte *) srcRowA;
-      const ubyte *rowB = (const ubyte *) srcRowB;
-      ubyte *dst = (ubyte *) dstRow;
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         const int rowAr0 = rowA[j] & 0x3;
-         const int rowAr1 = rowA[k] & 0x3;
-         const int rowBr0 = rowB[j] & 0x3;
-         const int rowBr1 = rowB[k] & 0x3;
-         const int rowAg0 = (rowA[j] >> 2) & 0x7;
-         const int rowAg1 = (rowA[k] >> 2) & 0x7;
-         const int rowBg0 = (rowB[j] >> 2) & 0x7;
-         const int rowBg1 = (rowB[k] >> 2) & 0x7;
-         const int rowAb0 = (rowA[j] >> 5) & 0x7;
-         const int rowAb1 = (rowA[k] >> 5) & 0x7;
-         const int rowBb0 = (rowB[j] >> 5) & 0x7;
-         const int rowBb1 = (rowB[k] >> 5) & 0x7;
-         const int red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2;
-         const int green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2;
-         const int blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2;
-         dst[i] = (blue << 5) | (green << 2) | red;
-      }
-   }
-   else {
-      debug_printf("bad format in do_row()");
-   }
-}
-
-
-/**
- * Average together four rows of a source image to produce a single new
- * row in the dest image.  It's legal for the two source rows to point
- * to the same data.  The source width must be equal to either the
- * dest width or two times the dest width.
- *
- * \param datatype  GL pixel type \c GL_UNSIGNED_BYTE, \c GL_UNSIGNED_SHORT,
- *                  \c GL_FLOAT, etc.
- * \param comps     number of components per pixel (1..4)
- * \param srcWidth  Width of a row in the source data
- * \param srcRowA   Pointer to one of the rows of source data
- * \param srcRowB   Pointer to one of the rows of source data
- * \param srcRowC   Pointer to one of the rows of source data
- * \param srcRowD   Pointer to one of the rows of source data
- * \param dstWidth  Width of a row in the destination data
- * \param srcRowA   Pointer to the row of destination data
- */
-static void
-do_row_3D(enum dtype datatype, uint comps, int srcWidth,
-          const void *srcRowA, const void *srcRowB,
-          const void *srcRowC, const void *srcRowD,
-          int dstWidth, void *dstRow)
-{
-   const uint k0 = (srcWidth == dstWidth) ? 0 : 1;
-   const uint colStride = (srcWidth == dstWidth) ? 1 : 2;
-   uint i, j, k;
-
-   assert(comps >= 1);
-   assert(comps <= 4);
-
-   if ((datatype == DTYPE_UBYTE) && (comps == 4)) {
-      DECLARE_ROW_POINTERS(ubyte, 4);
-
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         FILTER_3D(0);
-         FILTER_3D(1);
-         FILTER_3D(2);
-         FILTER_3D(3);
-      }
-   }
-   else if ((datatype == DTYPE_UBYTE) && (comps == 3)) {
-      DECLARE_ROW_POINTERS(ubyte, 3);
-
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         FILTER_3D(0);
-         FILTER_3D(1);
-         FILTER_3D(2);
-      }
-   }
-   else if ((datatype == DTYPE_UBYTE) && (comps == 2)) {
-      DECLARE_ROW_POINTERS(ubyte, 2);
-
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         FILTER_3D(0);
-         FILTER_3D(1);
-      }
-   }
-   else if ((datatype == DTYPE_UBYTE) && (comps == 1)) {
-      DECLARE_ROW_POINTERS(ubyte, 1);
-
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         FILTER_3D(0);
-      }
-   }
-   else if ((datatype == DTYPE_USHORT) && (comps == 4)) {
-      DECLARE_ROW_POINTERS(ushort, 4);
-
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         FILTER_3D(0);
-         FILTER_3D(1);
-         FILTER_3D(2);
-         FILTER_3D(3);
-      }
-   }
-   else if ((datatype == DTYPE_USHORT) && (comps == 3)) {
-      DECLARE_ROW_POINTERS(ushort, 3);
-
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         FILTER_3D(0);
-         FILTER_3D(1);
-         FILTER_3D(2);
-      }
-   }
-   else if ((datatype == DTYPE_USHORT) && (comps == 2)) {
-      DECLARE_ROW_POINTERS(ushort, 2);
-
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         FILTER_3D(0);
-         FILTER_3D(1);
-      }
-   }
-   else if ((datatype == DTYPE_USHORT) && (comps == 1)) {
-      DECLARE_ROW_POINTERS(ushort, 1);
-
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         FILTER_3D(0);
-      }
-   }
-   else if ((datatype == DTYPE_FLOAT) && (comps == 4)) {
-      DECLARE_ROW_POINTERS(float, 4);
-
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         FILTER_F_3D(0);
-         FILTER_F_3D(1);
-         FILTER_F_3D(2);
-         FILTER_F_3D(3);
-      }
-   }
-   else if ((datatype == DTYPE_FLOAT) && (comps == 3)) {
-      DECLARE_ROW_POINTERS(float, 3);
-
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         FILTER_F_3D(0);
-         FILTER_F_3D(1);
-         FILTER_F_3D(2);
-      }
-   }
-   else if ((datatype == DTYPE_FLOAT) && (comps == 2)) {
-      DECLARE_ROW_POINTERS(float, 2);
-
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         FILTER_F_3D(0);
-         FILTER_F_3D(1);
-      }
-   }
-   else if ((datatype == DTYPE_FLOAT) && (comps == 1)) {
-      DECLARE_ROW_POINTERS(float, 1);
-
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         FILTER_F_3D(0);
-      }
-   }
-   else if ((datatype == DTYPE_HALF_FLOAT) && (comps == 4)) {
-      DECLARE_ROW_POINTERS(half_float, 4);
-
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         FILTER_HF_3D(0);
-         FILTER_HF_3D(1);
-         FILTER_HF_3D(2);
-         FILTER_HF_3D(3);
-      }
-   }
-   else if ((datatype == DTYPE_HALF_FLOAT) && (comps == 3)) {
-      DECLARE_ROW_POINTERS(half_float, 4);
-
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         FILTER_HF_3D(0);
-         FILTER_HF_3D(1);
-         FILTER_HF_3D(2);
-      }
-   }
-   else if ((datatype == DTYPE_HALF_FLOAT) && (comps == 2)) {
-      DECLARE_ROW_POINTERS(half_float, 4);
-
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         FILTER_HF_3D(0);
-         FILTER_HF_3D(1);
-      }
-   }
-   else if ((datatype == DTYPE_HALF_FLOAT) && (comps == 1)) {
-      DECLARE_ROW_POINTERS(half_float, 4);
-
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         FILTER_HF_3D(0);
-      }
-   }
-   else if ((datatype == DTYPE_UINT) && (comps == 1)) {
-      const uint *rowA = (const uint *) srcRowA;
-      const uint *rowB = (const uint *) srcRowB;
-      const uint *rowC = (const uint *) srcRowC;
-      const uint *rowD = (const uint *) srcRowD;
-      float *dst = (float *) dstRow;
-
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         const uint64_t tmp = (((uint64_t) rowA[j] + (uint64_t) rowA[k])
-                               + ((uint64_t) rowB[j] + (uint64_t) rowB[k])
-                               + ((uint64_t) rowC[j] + (uint64_t) rowC[k])
-                               + ((uint64_t) rowD[j] + (uint64_t) rowD[k]));
-         dst[i] = (float)((double) tmp * 0.125);
-      }
-   }
-   else if ((datatype == DTYPE_USHORT_5_6_5) && (comps == 3)) {
-      DECLARE_ROW_POINTERS0(ushort);
-
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         const int rowAr0 = rowA[j] & 0x1f;
-         const int rowAr1 = rowA[k] & 0x1f;
-         const int rowBr0 = rowB[j] & 0x1f;
-         const int rowBr1 = rowB[k] & 0x1f;
-         const int rowCr0 = rowC[j] & 0x1f;
-         const int rowCr1 = rowC[k] & 0x1f;
-         const int rowDr0 = rowD[j] & 0x1f;
-         const int rowDr1 = rowD[k] & 0x1f;
-         const int rowAg0 = (rowA[j] >> 5) & 0x3f;
-         const int rowAg1 = (rowA[k] >> 5) & 0x3f;
-         const int rowBg0 = (rowB[j] >> 5) & 0x3f;
-         const int rowBg1 = (rowB[k] >> 5) & 0x3f;
-         const int rowCg0 = (rowC[j] >> 5) & 0x3f;
-         const int rowCg1 = (rowC[k] >> 5) & 0x3f;
-         const int rowDg0 = (rowD[j] >> 5) & 0x3f;
-         const int rowDg1 = (rowD[k] >> 5) & 0x3f;
-         const int rowAb0 = (rowA[j] >> 11) & 0x1f;
-         const int rowAb1 = (rowA[k] >> 11) & 0x1f;
-         const int rowBb0 = (rowB[j] >> 11) & 0x1f;
-         const int rowBb1 = (rowB[k] >> 11) & 0x1f;
-         const int rowCb0 = (rowC[j] >> 11) & 0x1f;
-         const int rowCb1 = (rowC[k] >> 11) & 0x1f;
-         const int rowDb0 = (rowD[j] >> 11) & 0x1f;
-         const int rowDb1 = (rowD[k] >> 11) & 0x1f;
-         const int r = FILTER_SUM_3D(rowAr0, rowAr1, rowBr0, rowBr1,
-                                       rowCr0, rowCr1, rowDr0, rowDr1);
-         const int g = FILTER_SUM_3D(rowAg0, rowAg1, rowBg0, rowBg1,
-                                       rowCg0, rowCg1, rowDg0, rowDg1);
-         const int b = FILTER_SUM_3D(rowAb0, rowAb1, rowBb0, rowBb1,
-                                       rowCb0, rowCb1, rowDb0, rowDb1);
-         dst[i] = (b << 11) | (g << 5) | r;
-      }
-   }
-   else if ((datatype == DTYPE_USHORT_4_4_4_4) && (comps == 4)) {
-      DECLARE_ROW_POINTERS0(ushort);
-
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         const int rowAr0 = rowA[j] & 0xf;
-         const int rowAr1 = rowA[k] & 0xf;
-         const int rowBr0 = rowB[j] & 0xf;
-         const int rowBr1 = rowB[k] & 0xf;
-         const int rowCr0 = rowC[j] & 0xf;
-         const int rowCr1 = rowC[k] & 0xf;
-         const int rowDr0 = rowD[j] & 0xf;
-         const int rowDr1 = rowD[k] & 0xf;
-         const int rowAg0 = (rowA[j] >> 4) & 0xf;
-         const int rowAg1 = (rowA[k] >> 4) & 0xf;
-         const int rowBg0 = (rowB[j] >> 4) & 0xf;
-         const int rowBg1 = (rowB[k] >> 4) & 0xf;
-         const int rowCg0 = (rowC[j] >> 4) & 0xf;
-         const int rowCg1 = (rowC[k] >> 4) & 0xf;
-         const int rowDg0 = (rowD[j] >> 4) & 0xf;
-         const int rowDg1 = (rowD[k] >> 4) & 0xf;
-         const int rowAb0 = (rowA[j] >> 8) & 0xf;
-         const int rowAb1 = (rowA[k] >> 8) & 0xf;
-         const int rowBb0 = (rowB[j] >> 8) & 0xf;
-         const int rowBb1 = (rowB[k] >> 8) & 0xf;
-         const int rowCb0 = (rowC[j] >> 8) & 0xf;
-         const int rowCb1 = (rowC[k] >> 8) & 0xf;
-         const int rowDb0 = (rowD[j] >> 8) & 0xf;
-         const int rowDb1 = (rowD[k] >> 8) & 0xf;
-         const int rowAa0 = (rowA[j] >> 12) & 0xf;
-         const int rowAa1 = (rowA[k] >> 12) & 0xf;
-         const int rowBa0 = (rowB[j] >> 12) & 0xf;
-         const int rowBa1 = (rowB[k] >> 12) & 0xf;
-         const int rowCa0 = (rowC[j] >> 12) & 0xf;
-         const int rowCa1 = (rowC[k] >> 12) & 0xf;
-         const int rowDa0 = (rowD[j] >> 12) & 0xf;
-         const int rowDa1 = (rowD[k] >> 12) & 0xf;
-         const int r = FILTER_SUM_3D(rowAr0, rowAr1, rowBr0, rowBr1,
-                                       rowCr0, rowCr1, rowDr0, rowDr1);
-         const int g = FILTER_SUM_3D(rowAg0, rowAg1, rowBg0, rowBg1,
-                                       rowCg0, rowCg1, rowDg0, rowDg1);
-         const int b = FILTER_SUM_3D(rowAb0, rowAb1, rowBb0, rowBb1,
-                                       rowCb0, rowCb1, rowDb0, rowDb1);
-         const int a = FILTER_SUM_3D(rowAa0, rowAa1, rowBa0, rowBa1,
-                                       rowCa0, rowCa1, rowDa0, rowDa1);
-
-         dst[i] = (a << 12) | (b << 8) | (g << 4) | r;
-      }
-   }
-   else if ((datatype == DTYPE_USHORT_1_5_5_5_REV) && (comps == 4)) {
-      DECLARE_ROW_POINTERS0(ushort);
-
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         const int rowAr0 = rowA[j] & 0x1f;
-         const int rowAr1 = rowA[k] & 0x1f;
-         const int rowBr0 = rowB[j] & 0x1f;
-         const int rowBr1 = rowB[k] & 0x1f;
-         const int rowCr0 = rowC[j] & 0x1f;
-         const int rowCr1 = rowC[k] & 0x1f;
-         const int rowDr0 = rowD[j] & 0x1f;
-         const int rowDr1 = rowD[k] & 0x1f;
-         const int rowAg0 = (rowA[j] >> 5) & 0x1f;
-         const int rowAg1 = (rowA[k] >> 5) & 0x1f;
-         const int rowBg0 = (rowB[j] >> 5) & 0x1f;
-         const int rowBg1 = (rowB[k] >> 5) & 0x1f;
-         const int rowCg0 = (rowC[j] >> 5) & 0x1f;
-         const int rowCg1 = (rowC[k] >> 5) & 0x1f;
-         const int rowDg0 = (rowD[j] >> 5) & 0x1f;
-         const int rowDg1 = (rowD[k] >> 5) & 0x1f;
-         const int rowAb0 = (rowA[j] >> 10) & 0x1f;
-         const int rowAb1 = (rowA[k] >> 10) & 0x1f;
-         const int rowBb0 = (rowB[j] >> 10) & 0x1f;
-         const int rowBb1 = (rowB[k] >> 10) & 0x1f;
-         const int rowCb0 = (rowC[j] >> 10) & 0x1f;
-         const int rowCb1 = (rowC[k] >> 10) & 0x1f;
-         const int rowDb0 = (rowD[j] >> 10) & 0x1f;
-         const int rowDb1 = (rowD[k] >> 10) & 0x1f;
-         const int rowAa0 = (rowA[j] >> 15) & 0x1;
-         const int rowAa1 = (rowA[k] >> 15) & 0x1;
-         const int rowBa0 = (rowB[j] >> 15) & 0x1;
-         const int rowBa1 = (rowB[k] >> 15) & 0x1;
-         const int rowCa0 = (rowC[j] >> 15) & 0x1;
-         const int rowCa1 = (rowC[k] >> 15) & 0x1;
-         const int rowDa0 = (rowD[j] >> 15) & 0x1;
-         const int rowDa1 = (rowD[k] >> 15) & 0x1;
-         const int r = FILTER_SUM_3D(rowAr0, rowAr1, rowBr0, rowBr1,
-                                       rowCr0, rowCr1, rowDr0, rowDr1);
-         const int g = FILTER_SUM_3D(rowAg0, rowAg1, rowBg0, rowBg1,
-                                       rowCg0, rowCg1, rowDg0, rowDg1);
-         const int b = FILTER_SUM_3D(rowAb0, rowAb1, rowBb0, rowBb1,
-                                       rowCb0, rowCb1, rowDb0, rowDb1);
-         const int a = FILTER_SUM_3D(rowAa0, rowAa1, rowBa0, rowBa1,
-                                       rowCa0, rowCa1, rowDa0, rowDa1);
-
-         dst[i] = (a << 15) | (b << 10) | (g << 5) | r;
-      }
-   }
-   else if ((datatype == DTYPE_UBYTE_3_3_2) && (comps == 3)) {
-      DECLARE_ROW_POINTERS0(ushort);
-
-      for (i = j = 0, k = k0; i < (uint) dstWidth;
-           i++, j += colStride, k += colStride) {
-         const int rowAr0 = rowA[j] & 0x3;
-         const int rowAr1 = rowA[k] & 0x3;
-         const int rowBr0 = rowB[j] & 0x3;
-         const int rowBr1 = rowB[k] & 0x3;
-         const int rowCr0 = rowC[j] & 0x3;
-         const int rowCr1 = rowC[k] & 0x3;
-         const int rowDr0 = rowD[j] & 0x3;
-         const int rowDr1 = rowD[k] & 0x3;
-         const int rowAg0 = (rowA[j] >> 2) & 0x7;
-         const int rowAg1 = (rowA[k] >> 2) & 0x7;
-         const int rowBg0 = (rowB[j] >> 2) & 0x7;
-         const int rowBg1 = (rowB[k] >> 2) & 0x7;
-         const int rowCg0 = (rowC[j] >> 2) & 0x7;
-         const int rowCg1 = (rowC[k] >> 2) & 0x7;
-         const int rowDg0 = (rowD[j] >> 2) & 0x7;
-         const int rowDg1 = (rowD[k] >> 2) & 0x7;
-         const int rowAb0 = (rowA[j] >> 5) & 0x7;
-         const int rowAb1 = (rowA[k] >> 5) & 0x7;
-         const int rowBb0 = (rowB[j] >> 5) & 0x7;
-         const int rowBb1 = (rowB[k] >> 5) & 0x7;
-         const int rowCb0 = (rowC[j] >> 5) & 0x7;
-         const int rowCb1 = (rowC[k] >> 5) & 0x7;
-         const int rowDb0 = (rowD[j] >> 5) & 0x7;
-         const int rowDb1 = (rowD[k] >> 5) & 0x7;
-         const int r = FILTER_SUM_3D(rowAr0, rowAr1, rowBr0, rowBr1,
-                                       rowCr0, rowCr1, rowDr0, rowDr1);
-         const int g = FILTER_SUM_3D(rowAg0, rowAg1, rowBg0, rowBg1,
-                                       rowCg0, rowCg1, rowDg0, rowDg1);
-         const int b = FILTER_SUM_3D(rowAb0, rowAb1, rowBb0, rowBb1,
-                                       rowCb0, rowCb1, rowDb0, rowDb1);
-         dst[i] = (b << 5) | (g << 2) | r;
-      }
-   }
-   else {
-      debug_printf("bad format in do_row_3D()");
-   }
-}
-
-
-
-static void
-format_to_type_comps(enum pipe_format pformat,
-                     enum dtype *datatype, uint *comps)
-{
-   /* XXX I think this could be implemented in terms of the pf_*() functions */
-   switch (pformat) {
-   case PIPE_FORMAT_B8G8R8A8_UNORM:
-   case PIPE_FORMAT_B8G8R8X8_UNORM:
-   case PIPE_FORMAT_A8R8G8B8_UNORM:
-   case PIPE_FORMAT_X8R8G8B8_UNORM:
-   case PIPE_FORMAT_A8B8G8R8_SRGB:
-   case PIPE_FORMAT_X8B8G8R8_SRGB:
-   case PIPE_FORMAT_B8G8R8A8_SRGB:
-   case PIPE_FORMAT_B8G8R8X8_SRGB:
-   case PIPE_FORMAT_A8R8G8B8_SRGB:
-   case PIPE_FORMAT_X8R8G8B8_SRGB:
-   case PIPE_FORMAT_R8G8B8_SRGB:
-      *datatype = DTYPE_UBYTE;
-      *comps = 4;
-      return;
-   case PIPE_FORMAT_B5G5R5X1_UNORM:
-   case PIPE_FORMAT_B5G5R5A1_UNORM:
-      *datatype = DTYPE_USHORT_1_5_5_5_REV;
-      *comps = 4;
-      return;
-   case PIPE_FORMAT_B4G4R4A4_UNORM:
-      *datatype = DTYPE_USHORT_4_4_4_4;
-      *comps = 4;
-      return;
-   case PIPE_FORMAT_B5G6R5_UNORM:
-      *datatype = DTYPE_USHORT_5_6_5;
-      *comps = 3;
-      return;
-   case PIPE_FORMAT_L8_UNORM:
-   case PIPE_FORMAT_L8_SRGB:
-   case PIPE_FORMAT_A8_UNORM:
-   case PIPE_FORMAT_I8_UNORM:
-      *datatype = DTYPE_UBYTE;
-      *comps = 1;
-      return;
-   case PIPE_FORMAT_L8A8_UNORM:
-   case PIPE_FORMAT_L8A8_SRGB:
-      *datatype = DTYPE_UBYTE;
-      *comps = 2;
-      return;
-   default:
-      assert(0);
-      *datatype = DTYPE_UBYTE;
-      *comps = 0;
-      break;
-   }
-}
-
-
-static void
-reduce_1d(enum pipe_format pformat,
-          int srcWidth, const ubyte *srcPtr,
-          int dstWidth, ubyte *dstPtr)
-{
-   enum dtype datatype;
-   uint comps;
-
-   format_to_type_comps(pformat, &datatype, &comps);
-
-   /* we just duplicate the input row, kind of hack, saves code */
-   do_row(datatype, comps,
-          srcWidth, srcPtr, srcPtr,
-          dstWidth, dstPtr);
-}
-
-
-/**
- * Strides are in bytes.  If zero, it'll be computed as width * bpp.
- */
-static void
-reduce_2d(enum pipe_format pformat,
-          int srcWidth, int srcHeight,
-          int srcRowStride, const ubyte *srcPtr,
-          int dstWidth, int dstHeight,
-          int dstRowStride, ubyte *dstPtr)
-{
-   enum dtype datatype;
-   uint comps;
-   const int bpt = util_format_get_blocksize(pformat);
-   const ubyte *srcA, *srcB;
-   ubyte *dst;
-   int row;
-
-   format_to_type_comps(pformat, &datatype, &comps);
-
-   if (!srcRowStride)
-      srcRowStride = bpt * srcWidth;
-
-   if (!dstRowStride)
-      dstRowStride = bpt * dstWidth;
-
-   /* Compute src and dst pointers */
-   srcA = srcPtr;
-   if (srcHeight > 1) 
-      srcB = srcA + srcRowStride;
-   else
-      srcB = srcA;
-   dst = dstPtr;
-
-   for (row = 0; row < dstHeight; row++) {
-      do_row(datatype, comps,
-             srcWidth, srcA, srcB,
-             dstWidth, dst);
-      srcA += 2 * srcRowStride;
-      srcB += 2 * srcRowStride;
-      dst += dstRowStride;
-   }
-}
-
-
-static void
-reduce_3d(enum pipe_format pformat,
-          int srcWidth, int srcHeight, int srcDepth,
-          int srcRowStride, int srcImageStride, const ubyte *srcPtr,
-          int dstWidth, int dstHeight, int dstDepth,
-          int dstRowStride, int dstImageStride, ubyte *dstPtr)
-{
-   const int bpt = util_format_get_blocksize(pformat);
-   int img, row;
-   int srcImageOffset, srcRowOffset;
-   enum dtype datatype;
-   uint comps;
-
-   format_to_type_comps(pformat, &datatype, &comps);
-
-   /* XXX I think we should rather assert those strides */
-   if (!srcImageStride)
-      srcImageStride = srcWidth * srcHeight * bpt;
-   if (!dstImageStride)
-      dstImageStride = dstWidth * dstHeight * bpt;
-
-   if (!srcRowStride)
-      srcRowStride = srcWidth * bpt;
-   if (!dstRowStride)
-      dstRowStride = dstWidth * bpt;
-
-   /* Offset between adjacent src images to be averaged together */
-   srcImageOffset = (srcDepth == dstDepth) ? 0 : srcImageStride;
-
-   /* Offset between adjacent src rows to be averaged together */
-   srcRowOffset = (srcHeight == dstHeight) ? 0 : srcRowStride;
-
-   /*
-    * Need to average together up to 8 src pixels for each dest pixel.
-    * Break that down into 3 operations:
-    *   1. take two rows from source image and average them together.
-    *   2. take two rows from next source image and average them together.
-    *   3. take the two averaged rows and average them for the final dst row.
-    */
-
-   /*
-   printf("mip3d %d x %d x %d  ->  %d x %d x %d\n",
-          srcWidth, srcHeight, srcDepth, dstWidth, dstHeight, dstDepth);
-   */
-
-   for (img = 0; img < dstDepth; img++) {
-      /* first source image pointer */
-      const ubyte *imgSrcA = srcPtr
-         + img * (srcImageStride + srcImageOffset);
-      /* second source image pointer */
-      const ubyte *imgSrcB = imgSrcA + srcImageOffset;
-      /* address of the dest image */
-      ubyte *imgDst = dstPtr + img * dstImageStride;
-
-      /* setup the four source row pointers and the dest row pointer */
-      const ubyte *srcImgARowA = imgSrcA;
-      const ubyte *srcImgARowB = imgSrcA + srcRowOffset;
-      const ubyte *srcImgBRowA = imgSrcB;
-      const ubyte *srcImgBRowB = imgSrcB + srcRowOffset;
-      ubyte *dstImgRow = imgDst;
-
-      for (row = 0; row < dstHeight; row++) {
-         do_row_3D(datatype, comps, srcWidth, 
-                   srcImgARowA, srcImgARowB,
-                   srcImgBRowA, srcImgBRowB,
-                   dstWidth, dstImgRow);
-
-         /* advance to next rows */
-         srcImgARowA += srcRowStride + srcRowOffset;
-         srcImgARowB += srcRowStride + srcRowOffset;
-         srcImgBRowA += srcRowStride + srcRowOffset;
-         srcImgBRowB += srcRowStride + srcRowOffset;
-         dstImgRow += dstImageStride;
-      }
-   }
-}
-
-
-
-
-static void
-make_1d_mipmap(struct gen_mipmap_state *ctx,
-               struct pipe_resource *pt,
-               uint layer, uint baseLevel, uint lastLevel)
-{
-   struct pipe_context *pipe = ctx->pipe;
-   uint dstLevel;
-
-   for (dstLevel = baseLevel + 1; dstLevel <= lastLevel; dstLevel++) {
-      const uint srcLevel = dstLevel - 1;
-      struct pipe_transfer *srcTrans, *dstTrans;
-      void *srcMap, *dstMap;
-
-      srcMap = pipe_transfer_map(pipe, pt, srcLevel, layer,
-                                 PIPE_TRANSFER_READ, 0, 0,
-                                 u_minify(pt->width0, srcLevel),
-                                 u_minify(pt->height0, srcLevel), &srcTrans);
-      dstMap = pipe_transfer_map(pipe, pt, dstLevel, layer,
-                                 PIPE_TRANSFER_WRITE, 0, 0,
-                                 u_minify(pt->width0, dstLevel),
-                                 u_minify(pt->height0, dstLevel), &dstTrans);
-
-      reduce_1d(pt->format,
-                srcTrans->box.width, srcMap,
-                dstTrans->box.width, dstMap);
-
-      pipe->transfer_unmap(pipe, srcTrans);
-      pipe->transfer_unmap(pipe, dstTrans);
-   }
-}
-
-
-static void
-make_2d_mipmap(struct gen_mipmap_state *ctx,
-               struct pipe_resource *pt,
-               uint layer, uint baseLevel, uint lastLevel)
-{
-   struct pipe_context *pipe = ctx->pipe;
-   uint dstLevel;
-
-   assert(util_format_get_blockwidth(pt->format) == 1);
-   assert(util_format_get_blockheight(pt->format) == 1);
-
-   for (dstLevel = baseLevel + 1; dstLevel <= lastLevel; dstLevel++) {
-      const uint srcLevel = dstLevel - 1;
-      struct pipe_transfer *srcTrans, *dstTrans;
-      ubyte *srcMap, *dstMap;
-
-      srcMap = pipe_transfer_map(pipe, pt, srcLevel, layer,
-                                 PIPE_TRANSFER_READ, 0, 0,
-                                 u_minify(pt->width0, srcLevel),
-                                 u_minify(pt->height0, srcLevel), &srcTrans);
-      dstMap = pipe_transfer_map(pipe, pt, dstLevel, layer,
-                                 PIPE_TRANSFER_WRITE, 0, 0,
-                                 u_minify(pt->width0, dstLevel),
-                                 u_minify(pt->height0, dstLevel), &dstTrans);
-
-      reduce_2d(pt->format,
-                srcTrans->box.width, srcTrans->box.height,
-                srcTrans->stride, srcMap,
-                dstTrans->box.width, dstTrans->box.height,
-                dstTrans->stride, dstMap);
-
-      pipe->transfer_unmap(pipe, srcTrans);
-      pipe->transfer_unmap(pipe, dstTrans);
-   }
-}
-
-
-/* XXX looks a bit more like it could work now but need to test */
-static void
-make_3d_mipmap(struct gen_mipmap_state *ctx,
-               struct pipe_resource *pt,
-               uint face, uint baseLevel, uint lastLevel)
-{
-   struct pipe_context *pipe = ctx->pipe;
-   uint dstLevel;
-   struct pipe_box src_box, dst_box;
-
-   assert(util_format_get_blockwidth(pt->format) == 1);
-   assert(util_format_get_blockheight(pt->format) == 1);
-
-   src_box.x = src_box.y = src_box.z = 0;
-   dst_box.x = dst_box.y = dst_box.z = 0;
-
-   for (dstLevel = baseLevel + 1; dstLevel <= lastLevel; dstLevel++) {
-      const uint srcLevel = dstLevel - 1;
-      struct pipe_transfer *srcTrans, *dstTrans;
-      ubyte *srcMap, *dstMap;
-      struct pipe_box src_box, dst_box;
-      src_box.width = u_minify(pt->width0, srcLevel);
-      src_box.height = u_minify(pt->height0, srcLevel);
-      src_box.depth = u_minify(pt->depth0, srcLevel);
-      dst_box.width = u_minify(pt->width0, dstLevel);
-      dst_box.height = u_minify(pt->height0, dstLevel);
-      dst_box.depth = u_minify(pt->depth0, dstLevel);
-
-      srcMap = pipe->transfer_map(pipe, pt, srcLevel,
-                                  PIPE_TRANSFER_READ,
-                                  &src_box, &srcTrans);
-      dstMap = pipe->transfer_map(pipe, pt, dstLevel,
-                                  PIPE_TRANSFER_WRITE,
-                                  &dst_box, &dstTrans);
-
-      reduce_3d(pt->format,
-                srcTrans->box.width, srcTrans->box.height, srcTrans->box.depth,
-                srcTrans->stride, srcTrans->layer_stride, srcMap,
-                dstTrans->box.width, dstTrans->box.height, dstTrans->box.depth,
-                dstTrans->stride, dstTrans->layer_stride, dstMap);
-
-      pipe->transfer_unmap(pipe, srcTrans);
-      pipe->transfer_unmap(pipe, dstTrans);
-   }
-}
-
-
-static void
-fallback_gen_mipmap(struct gen_mipmap_state *ctx,
-                    struct pipe_resource *pt,
-                    uint layer, uint baseLevel, uint lastLevel)
-{
-   switch (pt->target) {
-   case PIPE_TEXTURE_1D:
-      make_1d_mipmap(ctx, pt, layer, baseLevel, lastLevel);
-      break;
-   case PIPE_TEXTURE_2D:
-   case PIPE_TEXTURE_RECT:
-   case PIPE_TEXTURE_CUBE:
-      make_2d_mipmap(ctx, pt, layer, baseLevel, lastLevel);
-      break;
-   case PIPE_TEXTURE_3D:
-      make_3d_mipmap(ctx, pt, layer, baseLevel, lastLevel);
-      break;
-   default:
-      assert(0);
-   }
-}
-
-
 /**
  * Create a mipmap generation context.
  * The idea is to create one of these and re-use it each time we need to
@@ -1382,7 +223,7 @@ get_next_slot(struct gen_mipmap_state *ctx)
 static unsigned
 set_vertex_data(struct gen_mipmap_state *ctx,
                 enum pipe_texture_target tex_target,
-                uint layer, float r)
+                uint face, float r)
 {
    unsigned offset;
 
@@ -1403,14 +244,21 @@ set_vertex_data(struct gen_mipmap_state *ctx,
    ctx->vertices[3][0][1] = 1.0f;
 
    /* Setup vertex texcoords.  This is a little tricky for cube maps. */
-   if (tex_target == PIPE_TEXTURE_CUBE) {
+   if (tex_target == PIPE_TEXTURE_CUBE ||
+       tex_target == PIPE_TEXTURE_CUBE_ARRAY) {
       static const float st[4][2] = {
          {0.0f, 0.0f}, {1.0f, 0.0f}, {1.0f, 1.0f}, {0.0f, 1.0f}
       };
 
-      util_map_texcoords2d_onto_cubemap(layer, &st[0][0], 2,
+      util_map_texcoords2d_onto_cubemap(face, &st[0][0], 2,
                                         &ctx->vertices[0][1][0], 8,
                                         FALSE);
+
+      /* set the layer for cube arrays */
+      ctx->vertices[0][1][3] = r;
+      ctx->vertices[1][1][3] = r;
+      ctx->vertices[2][1][3] = r;
+      ctx->vertices[3][1][3] = r;
    }
    else if (tex_target == PIPE_TEXTURE_1D_ARRAY) {
       /* 1D texture array  */
@@ -1520,36 +368,15 @@ util_gen_mipmap(struct gen_mipmap_state *ctx,
    assert(filter == PIPE_TEX_FILTER_LINEAR ||
           filter == PIPE_TEX_FILTER_NEAREST);
 
-   switch (pt->target) {
-   case PIPE_TEXTURE_1D:
-      type = TGSI_TEXTURE_1D;
-      break;
-   case PIPE_TEXTURE_2D:
-      type = TGSI_TEXTURE_2D;
-      break;
-   case PIPE_TEXTURE_3D:
-      type = TGSI_TEXTURE_3D;
-      break;
-   case PIPE_TEXTURE_CUBE:
-      type = TGSI_TEXTURE_CUBE;
-      break;
-   case PIPE_TEXTURE_1D_ARRAY:
-      type = TGSI_TEXTURE_1D_ARRAY;
-      break;
-   case PIPE_TEXTURE_2D_ARRAY:
-      type = TGSI_TEXTURE_2D_ARRAY;
-      break;
-   default:
-      assert(0);
-      type = TGSI_TEXTURE_2D;
-   }
+   type = util_pipe_tex_to_tgsi_tex(pt->target, 1);
 
    /* check if we can render in the texture's format */
    if (!screen->is_format_supported(screen, psv->format, pt->target,
                                     pt->nr_samples,
                                     is_depth ? PIPE_BIND_DEPTH_STENCIL :
                                                PIPE_BIND_RENDER_TARGET)) {
-      fallback_gen_mipmap(ctx, pt, face, baseLevel, lastLevel);
+      /* The caller should check if the format is renderable. */
+      assert(0);
       return;
    }
 
@@ -1600,7 +427,9 @@ util_gen_mipmap(struct gen_mipmap_state *ctx,
 
       if (pt->target == PIPE_TEXTURE_3D)
          nr_layers = u_minify(pt->depth0, dstLevel);
-      else if (pt->target == PIPE_TEXTURE_2D_ARRAY || pt->target == PIPE_TEXTURE_1D_ARRAY)
+      else if (pt->target == PIPE_TEXTURE_2D_ARRAY ||
+               pt->target == PIPE_TEXTURE_1D_ARRAY ||
+               pt->target == PIPE_TEXTURE_CUBE_ARRAY)
 	 nr_layers = pt->array_size;
       else
          nr_layers = 1;
@@ -1613,9 +442,14 @@ util_gen_mipmap(struct gen_mipmap_state *ctx,
             layer = i;
             /* XXX hmm really? */
             rcoord = (float)layer / (float)nr_layers + 1.0f / (float)(nr_layers * 2);
-         } else if (pt->target == PIPE_TEXTURE_2D_ARRAY || pt->target == PIPE_TEXTURE_1D_ARRAY) {
+         } else if (pt->target == PIPE_TEXTURE_2D_ARRAY ||
+                    pt->target == PIPE_TEXTURE_1D_ARRAY) {
 	    layer = i;
 	    rcoord = (float)layer;
+         } else if (pt->target == PIPE_TEXTURE_CUBE_ARRAY) {
+            layer = i;
+            face = layer % 6;
+            rcoord = layer / 6;
 	 } else
             layer = face;