AuroraMiddleware/SPIRV-Cross
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Support FrexpStruct/ModfStruct.

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This commit is contained in:
Hans-Kristian Arntzen 2017-09-04 10:24:21 +02:00
parent e4251b7fea
commit 9091eadb0d
3 changed files with 94 additions and 0 deletions
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43
reference/shaders/frag/frexp-modf.frag Normal file
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@ -0,0 +1,43 @@
#version 310 es
precision mediump float;
precision highp int;
struct ResType
{
highp float _m0;
int _m1;
};
struct ResType_1
{
highp vec2 _m0;
ivec2 _m1;
};
layout(location = 0) in float v0;
layout(location = 1) in vec2 v1;
layout(location = 0) out float FragColor;
void main()
{
ResType _16;
_16._m0 = frexp(v0, _16._m1);
mediump int e0 = _16._m1;
float f0 = _16._m0;
ResType _22;
_22._m0 = frexp(v0 + 1.0, _22._m1);
e0 = _22._m1;
f0 = _22._m0;
ResType_1 _35;
_35._m0 = frexp(v1, _35._m1);
mediump ivec2 e1 = _35._m1;
vec2 f1 = _35._m0;
float r0;
float _41 = modf(v0, r0);
float m0 = _41;
vec2 r1;
vec2 _45 = modf(v1, r1);
vec2 m1 = _45;
FragColor = ((((f0 + f1.x) + f1.y) + m0) + m1.x) + m1.y;
}

24
shaders/frag/frexp-modf.frag Normal file
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@ -0,0 +1,24 @@
#version 310 es
precision mediump float;
layout(location = 0) out float FragColor;
layout(location = 0) in float v0;
layout(location = 1) in vec2 v1;
void main()
{
int e0;
float f0 = frexp(v0, e0);
f0 = frexp(v0 + 1.0, e0);
ivec2 e1;
vec2 f1 = frexp(v1, e1);
float r0;
float m0 = modf(v0, r0);
vec2 r1;
vec2 m1 = modf(v1, r1);
FragColor = f0 + f1.x + f1.y + m0 + m1.x + m1.y;
}

27
spirv_glsl.cpp
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@ -3291,6 +3291,19 @@ void CompilerGLSL::emit_glsl_op(uint32_t result_type, uint32_t id, uint32_t eop,
emit_binary_func_op(result_type, id, args[0], args[1], "modf");
break;
case GLSLstd450ModfStruct:
{
forced_temporaries.insert(id);
auto &type = get<SPIRType>(result_type);
auto flags = meta[id].decoration.decoration_flags;
statement(flags_to_precision_qualifiers_glsl(type, flags), variable_decl(type, to_name(id)), ";");
set<SPIRExpression>(id, to_name(id), result_type, true);
statement(to_expression(id), ".", to_member_name(type, 0), " = ", "modf(", to_expression(args[0]), ", ",
to_expression(id), ".", to_member_name(type, 1), ");");
break;
}
// Minmax
case GLSLstd450FMin:
case GLSLstd450UMin:
@ -3400,6 +3413,20 @@ void CompilerGLSL::emit_glsl_op(uint32_t result_type, uint32_t id, uint32_t eop,
forced_temporaries.insert(id);
emit_binary_func_op(result_type, id, args[0], args[1], "frexp");
break;
case GLSLstd450FrexpStruct:
{
forced_temporaries.insert(id);
auto &type = get<SPIRType>(result_type);
auto flags = meta[id].decoration.decoration_flags;
statement(flags_to_precision_qualifiers_glsl(type, flags), variable_decl(type, to_name(id)), ";");
set<SPIRExpression>(id, to_name(id), result_type, true);
statement(to_expression(id), ".", to_member_name(type, 0), " = ", "frexp(", to_expression(args[0]), ", ",
to_expression(id), ".", to_member_name(type, 1), ");");
break;
}
case GLSLstd450Ldexp:
emit_binary_func_op(result_type, id, args[0], args[1], "ldexp");
break;