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glsl/fp/vp: Avoid shader clutter

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- Do not add unused subroutines in shaders unless necessary
-- makes shaders easier to read and disassembled spir-v has less clutter
- glsl: Replace switch block with lookup table
This commit is contained in:
kd-11 2018-01-25 00:09:27 +03:00
parent 2e04dceaf0
commit 33bcdd476c
9 changed files with 192 additions and 123 deletions
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9
rpcs3/Emu/RSX/GL/GLFragmentProgram.cpp
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@ -194,7 +194,7 @@ namespace
void GLFragmentDecompilerThread::insertGlobalFunctions(std::stringstream &OS)
{
glsl::insert_glsl_legacy_function(OS, glsl::glsl_fragment_program);
glsl::insert_glsl_legacy_function(OS, glsl::glsl_fragment_program, properties.has_lit_op, m_prog.redirected_textures != 0, properties.has_wpos_input);
}
void GLFragmentDecompilerThread::insertMainStart(std::stringstream & OS)
@ -248,8 +248,11 @@ void GLFragmentDecompilerThread::insertMainStart(std::stringstream & OS)
}
}
OS << " vec4 ssa = gl_FrontFacing ? vec4(1.) : vec4(-1.);\n";
OS << " vec4 wpos = get_wpos();\n";
if (m_parr.HasParam(PF_PARAM_IN, "vec4", "ssa"))
OS << " vec4 ssa = gl_FrontFacing ? vec4(1.) : vec4(-1.);\n";
if (properties.has_wpos_input)
OS << " vec4 wpos = get_wpos();\n";
for (const ParamType& PT : m_parr.params[PF_PARAM_UNIFORM])
{