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Pre-emptive blending mode determination in IR loader

This commit is contained in:
Jack Andersen 2016-07-26 12:05:21 -10:00
parent 3c4af907cc
commit 4aa4668073
1 changed files with 26 additions and 0 deletions
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26
hecl/include/hecl/Frontend.hpp
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@ -7,6 +7,7 @@
#include <athena/Types.hpp> #include <athena/Types.hpp>
#include <athena/DNA.hpp> #include <athena/DNA.hpp>
#include <hecl/hecl.hpp> #include <hecl/hecl.hpp>
#include <boo/graphicsdev/IGraphicsDataFactory.hpp>
namespace hecl namespace hecl
{ {
@ -293,6 +294,10 @@ struct IR : BigDNA
atUint16 m_regCount = 0; atUint16 m_regCount = 0;
std::vector<Instruction> m_instructions; std::vector<Instruction> m_instructions;
boo::BlendFactor m_blendSrc = boo::BlendFactor::One;
boo::BlendFactor m_blendDst = boo::BlendFactor::Zero;
bool m_doAlpha = false;
void read(athena::io::IStreamReader& reader) void read(athena::io::IStreamReader& reader)
{ {
m_hash = reader.readUint64Big(); m_hash = reader.readUint64Big();
@ -302,6 +307,27 @@ struct IR : BigDNA
m_instructions.reserve(instCount); m_instructions.reserve(instCount);
for (atUint16 i=0 ; i<instCount ; ++i) for (atUint16 i=0 ; i<instCount ; ++i)
m_instructions.emplace_back(reader); m_instructions.emplace_back(reader);
/* Pre-resolve blending mode */
const IR::Instruction& rootCall = m_instructions.back();
m_doAlpha = false;
if (!rootCall.m_call.m_name.compare("HECLOpaque"))
{
m_blendSrc = boo::BlendFactor::One;
m_blendDst = boo::BlendFactor::Zero;
}
else if (!rootCall.m_call.m_name.compare("HECLAlpha"))
{
m_blendSrc = boo::BlendFactor::SrcAlpha;
m_blendDst = boo::BlendFactor::InvSrcAlpha;
m_doAlpha = true;
}
else if (!rootCall.m_call.m_name.compare("HECLAdditive"))
{
m_blendSrc = boo::BlendFactor::SrcAlpha;
m_blendDst = boo::BlendFactor::One;
m_doAlpha = true;
}
} }
void write(athena::io::IStreamWriter& writer) const void write(athena::io::IStreamWriter& writer) const