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util: add get/put_tile_z() support for PIPE_FORMAT_Z32_FLOAT_S8X24_UINT

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Fixes https://bugs.freedesktop.org/show_bug.cgi?id=58972

Note: This is a candidate for the stable branches.
(cherry picked from commit 073a53fe2f)
This commit is contained in:
Brian Paul 2013-01-03 08:02:57 -07:00 • committed by Andreas Boll
parent af41a1d491
commit 96c1678c3a
1 changed files with 36 additions and 0 deletions
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36
src/gallium/auxiliary/util/u_tile.c
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@ -701,6 +701,28 @@ pipe_get_tile_z(struct pipe_context *pipe,
}
}
break;
case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT:
{
const float *ptrc = (const float *)(map + y * pt->stride + x*8);
for (i = 0; i < h; i++) {
for (j = 0; j < w; j++) {
/* convert float Z to 32-bit Z */
if (ptrc[j] <= 0.0) {
pDest[j*2] = 0;
}
else if (ptrc[j] >= 1.0) {
pDest[j*2] = 0xffffffff;
}
else {
double z = ptrc[j] * 0xffffffff;
pDest[j*2] = (uint) z;
}
}
pDest += dstStride;
ptrc += pt->stride/4;
}
}
break;
default:
assert(0);
}
@ -822,6 +844,20 @@ pipe_put_tile_z(struct pipe_context *pipe,
}
}
break;
case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT:
{
float *pDest = (float *) (map + y * pt->stride + x*8);
for (i = 0; i < h; i++) {
for (j = 0; j < w; j++) {
/* convert 32-bit integer Z to float Z */
const double scale = 1.0 / 0xffffffffU;
pDest[j*2] = ptrc[j] * scale;
}
pDest += pt->stride/4;
ptrc += srcStride;
}
}
break;
default:
assert(0);
}