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[AArch64] Fix a couple of bugs in the vertex loader

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In particular this fixes the 6666 colour format
We were loading from the wrong location and it was causing /terrible/ colour changes.

This also fixes a bug in the all the colour formats(except 888) where the unaligned path was loading in to the wrong register.
This commit is contained in:
Ryan Houdek 2015-06-20 21:12:31 -05:00
parent 3948dc77c7
commit a811370329
1 changed files with 14 additions and 7 deletions
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21
Source/Core/VideoCommon/VertexLoaderARM64.cpp
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@ -217,7 +217,7 @@ void VertexLoaderARM64::ReadColor(u64 attribute, int format, s32 offset)
if (offset == -1)
LDRH(INDEX_UNSIGNED, scratch3_reg, EncodeRegTo64(scratch1_reg), 0);
else if (offset & 1) // Not aligned - unscaled
LDURH(scratch2_reg, src_reg, offset);
LDURH(scratch3_reg, src_reg, offset);
else
LDRH(INDEX_UNSIGNED, scratch3_reg, src_reg, offset);
@ -254,7 +254,7 @@ void VertexLoaderARM64::ReadColor(u64 attribute, int format, s32 offset)
if (offset == -1)
LDRH(INDEX_UNSIGNED, scratch3_reg, EncodeRegTo64(scratch1_reg), 0);
else if (offset & 1) // Not aligned - unscaled
LDURH(scratch2_reg, src_reg, offset);
LDURH(scratch3_reg, src_reg, offset);
else
LDRH(INDEX_UNSIGNED, scratch3_reg, src_reg, offset);
@ -284,16 +284,22 @@ void VertexLoaderARM64::ReadColor(u64 attribute, int format, s32 offset)
// RRRRRRGG GGGGBBBB BBAAAAAA
// AAAAAAAA BBBBBBBB GGGGGGGG RRRRRRRR
if (offset == -1)
LDR(INDEX_UNSIGNED, scratch3_reg, EncodeRegTo64(scratch1_reg), 0);
else if (offset & 3) // Not aligned - unscaled
LDUR(scratch2_reg, src_reg, offset);
{
LDUR(scratch3_reg, EncodeRegTo64(scratch1_reg), -1);
}
else
LDR(INDEX_UNSIGNED, scratch3_reg, src_reg, m_src_ofs);
{
offset -= 1;
if (offset & 3) // Not aligned - unscaled
LDUR(scratch3_reg, src_reg, offset);
else
LDR(INDEX_UNSIGNED, scratch3_reg, src_reg, offset);
}
REV32(scratch3_reg, scratch3_reg);
// A
AND(scratch2_reg, scratch3_reg, 32, 5);
UBFM(scratch2_reg, scratch3_reg, 0, 5);
ORR(scratch2_reg, WSP, scratch2_reg, ArithOption(scratch2_reg, ST_LSL, 2));
ORR(scratch2_reg, scratch2_reg, scratch2_reg, ArithOption(scratch2_reg, ST_LSR, 6));
ORR(scratch1_reg, WSP, scratch2_reg, ArithOption(scratch2_reg, ST_LSL, 24));
@ -316,6 +322,7 @@ void VertexLoaderARM64::ReadColor(u64 attribute, int format, s32 offset)
ORR(scratch1_reg, scratch1_reg, scratch2_reg, ArithOption(scratch2_reg, ST_LSR, 4));
STR(INDEX_UNSIGNED, scratch1_reg, dst_reg, m_dst_ofs);
load_bytes = 3;
break;
}