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glsl: Define enum ir_depth_layout

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Chad Versace 2011-01-27 01:40:22 -08:00
parent 39cad66a88
commit 5fc57f471b
2 changed files with 35 additions and 0 deletions
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16
src/glsl/ir.cpp
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@ -472,6 +472,22 @@ const char *ir_expression::operator_string()
return operator_string(this->operation);
}
const char*
depth_layout_string(ir_depth_layout layout)
{
switch(layout) {
case ir_depth_layout_none: return "";
case ir_depth_layout_any: return "depth_any";
case ir_depth_layout_greater: return "depth_greater";
case ir_depth_layout_less: return "depth_less";
case ir_depth_layout_unchanged: return "depth_unchanged";
default:
assert(0);
return "";
}
}
ir_expression_operation
ir_expression::get_operator(const char *str)
{

19
src/glsl/ir.h
View file

@ -235,6 +235,25 @@ enum ir_variable_interpolation {
ir_var_noperspective
};
/**
* \brief Layout qualifiers for gl_FragDepth.
*
* The AMD_conservative_depth extension allows gl_FragDepth to be redeclared
* with a layout qualifier.
*/
enum ir_depth_layout {
ir_depth_layout_none, /**< No depth layout is specified. */
ir_depth_layout_any,
ir_depth_layout_greater,
ir_depth_layout_less,
ir_depth_layout_unchanged
};
/**
* \brief Convert depth layout qualifier to string.
*/
const char*
depth_layout_string(ir_depth_layout layout);
class ir_variable : public ir_instruction {
public: