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// Copyright 2023 The Dawn & Tint Authors
//
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#ifndef SRC_TINT_LANG_SPIRV_WRITER_RAISE_SHADER_IO_H_
#define SRC_TINT_LANG_SPIRV_WRITER_RAISE_SHADER_IO_H_
#include <string>
#include "src/tint/utils/diagnostic/diagnostic.h"
#include "src/tint/utils/result/result.h"
// Forward declarations.
namespace tint::core::ir {
class Module;
}
namespace tint::spirv::writer::raise {
/// ShaderIOConfig describes the set of configuration options for the ShaderIO transform.
struct ShaderIOConfig {
/// true if frag_depth builtin outputs should be clamped
bool clamp_frag_depth = false;
/// true if a vertex point size builtin output should be added
bool emit_vertex_point_size = false;
/// true if f16 IO types should be replaced with f32 types and converted
bool polyfill_f16_io = false;
};
/// ShaderIO is a transform that moves each entry point function's parameters and return value to
/// global variables to prepare them for SPIR-V codegen.
/// @param module the module to transform
/// @param config the configuration
/// @returns success or failure
Result<SuccessType> ShaderIO(core::ir::Module& module, const ShaderIOConfig& config);
} // namespace tint::spirv::writer::raise
#endif // SRC_TINT_LANG_SPIRV_WRITER_RAISE_SHADER_IO_H_