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rsx: Optimize VTX_FMT_SNORM16 decoding

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- Cuts down SNORM16 overhead by ~65%
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kd-11 2022-08-03 19:28:56 +03:00 committed by kd-11
parent 8181498d86
commit 3e923b4993
1 changed files with 2 additions and 6 deletions
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8
rpcs3/Emu/RSX/Program/GLSLCommon.cpp
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@ -267,7 +267,7 @@ namespace glsl
"vec4 fetch_attribute(const in attribute_desc desc, const in int vertex_id, usamplerBuffer input_stream)\n"
"{\n"
" const int elem_size_table[] = { 2, 4, 2, 1, 2, 4, 1 };\n"
" const float scaling_table[] = { 65535., 1., 1., 255., 1., 32767., 1. };\n"
" const float scaling_table[] = { 32767.5, 1., 1., 255., 1., 32767., 1. };\n"
" const int elem_size = elem_size_table[desc.type];\n"
" const vec4 scale = scaling_table[desc.type].xxxx;\n\n"
@ -298,11 +298,7 @@ namespace glsl
" if (desc.type == VTX_FMT_SNORM16 || desc.type == VTX_FMT_SINT16)\n"
" {\n"
" ret = sext(ivec4(result));\n"
" if (desc.type == VTX_FMT_SNORM16)\n"
" {\n"
" ret = ret * 2. + 1.;\n"
" }\n"
" ret = fma(vec4(0.5), vec4(desc.type == VTX_FMT_SNORM16), ret);\n"
" }\n"
" else if (desc.type == VTX_FMT_FLOAT32)\n"
" {\n"