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authorGert Wollny <[email protected]>2019-04-24 09:28:46 +0200
committerGert Wollny <[email protected]>2019-05-01 08:39:58 +0200
commit5f0959f8df69f438944c2e99549dd747c5e7df37 (patch)
treef2132bf3195e10925efe06bdb0099754be3e7731 /src/gallium/auxiliary/tgsi
parent7d5c8d3589633eb8f5ee760faa5c0ba950db44b9 (diff)
softpipe: Factor out evaluation of the source indices
We will need these for per sample interpolation as well Signed-off-by: Gert Wollny <[email protected]> Reviewed-by: Roland Scheidegger <[email protected]>
Diffstat (limited to 'src/gallium/auxiliary/tgsi')
-rw-r--r--src/gallium/auxiliary/tgsi/tgsi_exec.c69
1 files changed, 41 insertions, 28 deletions
diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.c b/src/gallium/auxiliary/tgsi/tgsi_exec.c
index fc8f9d2d612..d191ded3993 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_exec.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_exec.c
@@ -1613,13 +1613,11 @@ fetch_src_file_channel(const struct tgsi_exec_machine *mach,
}
static void
-fetch_source_d(const struct tgsi_exec_machine *mach,
- union tgsi_exec_channel *chan,
- const struct tgsi_full_src_register *reg,
- const uint chan_index)
+get_index_registers(const struct tgsi_exec_machine *mach,
+ const struct tgsi_full_src_register *reg,
+ union tgsi_exec_channel *index,
+ union tgsi_exec_channel *index2D)
{
- union tgsi_exec_channel index;
- union tgsi_exec_channel index2D;
uint swizzle;
/* We start with a direct index into a register file.
@@ -1629,10 +1627,10 @@ fetch_source_d(const struct tgsi_exec_machine *mach,
* file = Register.File
* [1] = Register.Index
*/
- index.i[0] =
- index.i[1] =
- index.i[2] =
- index.i[3] = reg->Register.Index;
+ index->i[0] =
+ index->i[1] =
+ index->i[2] =
+ index->i[3] = reg->Register.Index;
/* There is an extra source register that indirectly subscripts
* a register file. The direct index now becomes an offset
@@ -1665,17 +1663,17 @@ fetch_source_d(const struct tgsi_exec_machine *mach,
&indir_index);
/* add value of address register to the offset */
- index.i[0] += indir_index.i[0];
- index.i[1] += indir_index.i[1];
- index.i[2] += indir_index.i[2];
- index.i[3] += indir_index.i[3];
+ index->i[0] += indir_index.i[0];
+ index->i[1] += indir_index.i[1];
+ index->i[2] += indir_index.i[2];
+ index->i[3] += indir_index.i[3];
/* for disabled execution channels, zero-out the index to
* avoid using a potential garbage value.
*/
for (i = 0; i < TGSI_QUAD_SIZE; i++) {
if ((execmask & (1 << i)) == 0)
- index.i[i] = 0;
+ index->i[i] = 0;
}
}
@@ -1688,10 +1686,10 @@ fetch_source_d(const struct tgsi_exec_machine *mach,
* [3] = Dimension.Index
*/
if (reg->Register.Dimension) {
- index2D.i[0] =
- index2D.i[1] =
- index2D.i[2] =
- index2D.i[3] = reg->Dimension.Index;
+ index2D->i[0] =
+ index2D->i[1] =
+ index2D->i[2] =
+ index2D->i[3] = reg->Dimension.Index;
/* Again, the second subscript index can be addressed indirectly
* identically to the first one.
@@ -1723,17 +1721,17 @@ fetch_source_d(const struct tgsi_exec_machine *mach,
&ZeroVec,
&indir_index);
- index2D.i[0] += indir_index.i[0];
- index2D.i[1] += indir_index.i[1];
- index2D.i[2] += indir_index.i[2];
- index2D.i[3] += indir_index.i[3];
+ index2D->i[0] += indir_index.i[0];
+ index2D->i[1] += indir_index.i[1];
+ index2D->i[2] += indir_index.i[2];
+ index2D->i[3] += indir_index.i[3];
/* for disabled execution channels, zero-out the index to
* avoid using a potential garbage value.
*/
for (i = 0; i < TGSI_QUAD_SIZE; i++) {
if ((execmask & (1 << i)) == 0) {
- index2D.i[i] = 0;
+ index2D->i[i] = 0;
}
}
}
@@ -1743,11 +1741,26 @@ fetch_source_d(const struct tgsi_exec_machine *mach,
* by a dimension register and continue the saga.
*/
} else {
- index2D.i[0] =
- index2D.i[1] =
- index2D.i[2] =
- index2D.i[3] = 0;
+ index2D->i[0] =
+ index2D->i[1] =
+ index2D->i[2] =
+ index2D->i[3] = 0;
}
+}
+
+
+static void
+fetch_source_d(const struct tgsi_exec_machine *mach,
+ union tgsi_exec_channel *chan,
+ const struct tgsi_full_src_register *reg,
+ const uint chan_index)
+{
+ union tgsi_exec_channel index;
+ union tgsi_exec_channel index2D;
+ uint swizzle;
+
+ get_index_registers(mach, reg, &index, &index2D);
+
swizzle = tgsi_util_get_full_src_register_swizzle( reg, chan_index );
fetch_src_file_channel(mach,