From 5f0959f8df69f438944c2e99549dd747c5e7df37 Mon Sep 17 00:00:00 2001 From: Gert Wollny Date: Wed, 24 Apr 2019 09:28:46 +0200 Subject: [PATCH] softpipe: Factor out evaluation of the source indices We will need these for per sample interpolation as well Signed-off-by: Gert Wollny Reviewed-by: Roland Scheidegger --- src/gallium/auxiliary/tgsi/tgsi_exec.c | 69 ++++++++++++++++++++-------------- 1 file changed, 41 insertions(+), 28 deletions(-) diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.c b/src/gallium/auxiliary/tgsi/tgsi_exec.c index fc8f9d2..d191ded 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, -- 2.7.4