136 lines
5.5 KiB
C++
136 lines
5.5 KiB
C++
/*************************************************************************/
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/* shader_warnings.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "shader_warnings.h"
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#include "core/variant/variant.h"
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#ifdef DEBUG_ENABLED
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ShaderWarning::Code ShaderWarning::get_code() const {
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return code;
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}
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int ShaderWarning::get_line() const {
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return line;
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}
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const StringName &ShaderWarning::get_subject() const {
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return subject;
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}
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String ShaderWarning::get_message() const {
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switch (code) {
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case FLOAT_COMPARISON:
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return vformat("Direct floating-point comparison (this may not evaluate to `true` as you expect). Instead, use `abs(a - b) < 0.0001` for an approximate but predictable comparison.");
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case UNUSED_CONSTANT:
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return vformat("The const '%s' is declared but never used.", subject);
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case UNUSED_FUNCTION:
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return vformat("The function '%s' is declared but never used.", subject);
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case UNUSED_STRUCT:
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return vformat("The struct '%s' is declared but never used.", subject);
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case UNUSED_UNIFORM:
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return vformat("The uniform '%s' is declared but never used.", subject);
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case UNUSED_VARYING:
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return vformat("The varying '%s' is declared but never used.", subject);
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case UNUSED_LOCAL_VARIABLE:
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return vformat("The local variable '%s' is declared but never used.", subject);
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default:
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break;
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}
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return String();
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}
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String ShaderWarning::get_name() const {
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return get_name_from_code(code);
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}
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String ShaderWarning::get_name_from_code(Code p_code) {
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ERR_FAIL_INDEX_V(p_code, WARNING_MAX, String());
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static const char *names[] = {
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"FLOAT_COMPARISON",
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"UNUSED_CONSTANT",
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"UNUSED_FUNCTION",
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"UNUSED_STRUCT",
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"UNUSED_UNIFORM",
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"UNUSED_VARYING",
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"UNUSED_LOCAL_VARIABLE",
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};
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static_assert((sizeof(names) / sizeof(*names)) == WARNING_MAX, "Amount of warning types don't match the amount of warning names.");
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return names[(int)p_code];
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}
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ShaderWarning::Code ShaderWarning::get_code_from_name(const String &p_name) {
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for (int i = 0; i < WARNING_MAX; i++) {
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if (get_name_from_code((Code)i) == p_name) {
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return (Code)i;
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}
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}
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ERR_FAIL_V_MSG(WARNING_MAX, "Invalid shader warning name: " + p_name);
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}
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static Map<int, uint32_t> *code_to_flags_map = nullptr;
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static void init_code_to_flags_map() {
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code_to_flags_map = memnew((Map<int, uint32_t>));
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code_to_flags_map->insert(ShaderWarning::FLOAT_COMPARISON, ShaderWarning::FLOAT_COMPARISON_FLAG);
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code_to_flags_map->insert(ShaderWarning::UNUSED_CONSTANT, ShaderWarning::UNUSED_CONSTANT_FLAG);
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code_to_flags_map->insert(ShaderWarning::UNUSED_FUNCTION, ShaderWarning::UNUSED_FUNCTION_FLAG);
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code_to_flags_map->insert(ShaderWarning::UNUSED_STRUCT, ShaderWarning::UNUSED_STRUCT_FLAG);
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code_to_flags_map->insert(ShaderWarning::UNUSED_UNIFORM, ShaderWarning::UNUSED_UNIFORM_FLAG);
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code_to_flags_map->insert(ShaderWarning::UNUSED_VARYING, ShaderWarning::UNUSED_VARYING_FLAG);
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code_to_flags_map->insert(ShaderWarning::UNUSED_LOCAL_VARIABLE, ShaderWarning::UNUSED_LOCAL_VARIABLE_FLAG);
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}
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ShaderWarning::CodeFlags ShaderWarning::get_flags_from_codemap(const Map<Code, bool> &p_map) {
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uint32_t result = 0U;
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if (code_to_flags_map == nullptr) {
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init_code_to_flags_map();
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}
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for (Map<Code, bool>::Element *E = p_map.front(); E; E = E->next()) {
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if (E->get()) {
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ERR_FAIL_COND_V(!code_to_flags_map->has((int)E->key()), ShaderWarning::NONE_FLAG);
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result |= (*code_to_flags_map)[(int)E->key()];
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}
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}
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return (CodeFlags)result;
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}
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ShaderWarning::ShaderWarning(Code p_code, int p_line, const StringName &p_subject) :
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code(p_code), line(p_line), subject(p_subject) {
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}
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#endif // DEBUG_ENABLED
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