AuroraMiddleware/SPIRV-Cross-Vulnerable
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Change variable names beginning with gl_ in GLSL

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Using old-school GLSL as input containing code ala
"gl_FragColor = whatever" resulted in illegal
declarations ala "out vec4 gl_FragColor;".
This commit is contained in:
Robert Konrad 2016-08-13 00:14:52 +02:00
parent 8f7c1af046
commit 7693656d68
2 changed files with 25 additions and 0 deletions
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23
spirv_glsl.cpp
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@ -1017,6 +1017,27 @@ void CompilerGLSL::emit_uniform(const SPIRVariable &var)
statement(layout_for_variable(var), "uniform ", variable_decl(var), ";");
}
void CompilerGLSL::replace_illegal_names()
{
for (auto &id : ids)
{
if (id.get_type() == TypeVariable)
{
auto &var = id.get<SPIRVariable>();
auto &type = get<SPIRType>(var.basetype);
if (!is_builtin_variable(var))
{
auto &m = meta[var.self].decoration;
if (m.alias.compare(0, 3, "gl_") == 0)
{
m.alias = join("_", m.alias);
}
}
}
}
}
void CompilerGLSL::replace_fragment_output(SPIRVariable &var)
{
auto &m = meta[var.self].decoration;
@ -1101,6 +1122,8 @@ void CompilerGLSL::emit_resources()
{
auto &execution = get_entry_point();
replace_illegal_names();
// Legacy GL uses gl_FragData[], redeclare all fragment outputs
// with builtins.
if (execution.model == ExecutionModelFragment && is_legacy())

2
spirv_glsl.hpp
View File

@ -308,6 +308,8 @@ protected:
// and force recompile.
bool check_atomic_image(uint32_t id);
void replace_illegal_names();
void replace_fragment_output(SPIRVariable &var);
void replace_fragment_outputs();
std::string legacy_tex_op(const std::string &op, const SPIRType &imgtype);