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Split TevStageIndirect::mid into matrix_index and matrix_id

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This commit is contained in:
Pokechu22
2021-04-10 17:41:06 -07:00
parent 1d628d087b
commit c3668e179c
5 changed files with 78 additions and 41 deletions
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26
Source/Core/VideoCommon/PixelShaderGen.cpp
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@ -991,7 +991,7 @@ static void WriteStage(ShaderCode& out, const pixel_shader_uid_data* uid_data, i
// TODO: Should we reset alphabump to 0 here?
}
if (tevind.mid != 0)
if (tevind.matrix_index != IndMtxIndex::Off)
{
// format
static constexpr std::array<const char*, 4> tev_ind_fmt_mask{
@ -1038,11 +1038,14 @@ static void WriteStage(ShaderCode& out, const pixel_shader_uid_data* uid_data, i
tev_ind_bias_add[u32(tevind.fmt.Value())]);
}
// Multiplied by 2 because each matrix has two rows.
// Note also that the 4th column of the matrix contains the scale factor.
const u32 mtxidx = 2 * (static_cast<u32>(tevind.matrix_index.Value()) - 1);
// multiply by offset matrix and scale - calculations are likely to overflow badly,
// yet it works out since we only care about the lower 23 bits (+1 sign bit) of the result
if (tevind.mid <= 3)
if (tevind.matrix_id == IndMtxId::Indirect)
{
const u32 mtxidx = 2 * (tevind.mid - 1);
out.SetConstantsUsed(C_INDTEXMTX + mtxidx, C_INDTEXMTX + mtxidx);
out.Write("\tint2 indtevtrans{} = int2(idot(" I_INDTEXMTX
@ -1064,10 +1067,9 @@ static void WriteStage(ShaderCode& out, const pixel_shader_uid_data* uid_data, i
out.Write("\telse indtevtrans{} <<= (-" I_INDTEXMTX "[{}].w);\n", n, mtxidx);
}
}
else if (tevind.mid <= 7 && has_tex_coord)
{ // s matrix
ASSERT(tevind.mid >= 5);
const u32 mtxidx = 2 * (tevind.mid - 5);
else if (tevind.matrix_id == IndMtxId::S)
{
ASSERT(has_tex_coord);
out.SetConstantsUsed(C_INDTEXMTX + mtxidx, C_INDTEXMTX + mtxidx);
out.Write("\tint2 indtevtrans{} = int2(fixpoint_uv{} * iindtevcrd{}.xx) >> 8;\n", n,
@ -1086,10 +1088,9 @@ static void WriteStage(ShaderCode& out, const pixel_shader_uid_data* uid_data, i
out.Write("\telse indtevtrans{} <<= (-" I_INDTEXMTX "[{}].w);\n", n, mtxidx);
}
}
else if (tevind.mid <= 11 && has_tex_coord)
{ // t matrix
ASSERT(tevind.mid >= 9);
const u32 mtxidx = 2 * (tevind.mid - 9);
else if (tevind.matrix_id == IndMtxId::T)
{
ASSERT(has_tex_coord);
out.SetConstantsUsed(C_INDTEXMTX + mtxidx, C_INDTEXMTX + mtxidx);
out.Write("\tint2 indtevtrans{} = int2(fixpoint_uv{} * iindtevcrd{}.yy) >> 8;\n", n,
@ -1112,11 +1113,14 @@ static void WriteStage(ShaderCode& out, const pixel_shader_uid_data* uid_data, i
else
{
out.Write("\tint2 indtevtrans{} = int2(0, 0);\n", n);
ASSERT(false); // Unknown value for matrix_id
}
}
else
{
out.Write("\tint2 indtevtrans{} = int2(0, 0);\n", n);
// If matrix_index is Off (0), matrix_id should be Indirect (0)
ASSERT(tevind.matrix_id == IndMtxId::Indirect);
}
// ---------