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-rw-r--r--servers/rendering/shader_language.h72
1 files changed, 54 insertions, 18 deletions
diff --git a/servers/rendering/shader_language.h b/servers/rendering/shader_language.h
index 0d044a21c7..e00f4dce19 100644
--- a/servers/rendering/shader_language.h
+++ b/servers/rendering/shader_language.h
@@ -5,8 +5,8 @@
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
-/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
-/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
+/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
+/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
@@ -31,22 +31,27 @@
#ifndef SHADER_LANGUAGE_H
#define SHADER_LANGUAGE_H
-#include "core/list.h"
-#include "core/map.h"
-#include "core/script_language.h"
-#include "core/string_name.h"
+#include "core/object/script_language.h"
+#include "core/string/string_name.h"
+#include "core/string/ustring.h"
+#include "core/templates/list.h"
+#include "core/templates/map.h"
#include "core/typedefs.h"
-#include "core/ustring.h"
-#include "core/variant.h"
+#include "core/variant/variant.h"
class ShaderLanguage {
public:
+ struct TkPos {
+ int char_idx;
+ int tk_line;
+ };
+
enum TokenType {
TK_EMPTY,
TK_IDENTIFIER,
TK_TRUE,
TK_FALSE,
- TK_REAL_CONSTANT,
+ TK_FLOAT_CONSTANT,
TK_INT_CONSTANT,
TK_TYPE_VOID,
TK_TYPE_BOOL,
@@ -326,6 +331,17 @@ public:
MAX_INSTANCE_UNIFORM_INDICES = 16
};
+ struct VaryingFunctionNames {
+ StringName fragment;
+ StringName vertex;
+ StringName light;
+ VaryingFunctionNames() {
+ fragment = "fragment";
+ vertex = "vertex";
+ light = "light";
+ }
+ };
+
struct Node {
Node *next = nullptr;
@@ -414,6 +430,7 @@ public:
StringName name;
Node *index_expression = nullptr;
Node *call_expression = nullptr;
+ Node *assign_expression = nullptr;
bool is_const = false;
virtual DataType get_datatype() const { return datatype_cache; }
@@ -437,6 +454,7 @@ public:
DataType datatype = TYPE_VOID;
String struct_name;
bool is_const = false;
+ Node *size_expression = nullptr;
struct Declaration {
StringName name;
@@ -496,6 +514,7 @@ public:
int line; //for completion
int array_size;
bool is_const;
+ ConstantNode::Value value;
};
Map<StringName, Variable> variables;
@@ -519,13 +538,14 @@ public:
DataType basetype = TYPE_VOID;
bool basetype_const = false;
StringName base_struct_name;
- DataPrecision precision;
+ DataPrecision precision = PRECISION_DEFAULT;
DataType datatype = TYPE_VOID;
int array_size = 0;
StringName struct_name;
StringName name;
Node *owner = nullptr;
Node *index_expression = nullptr;
+ Node *assign_expression = nullptr;
bool has_swizzling_duplicates = false;
virtual DataType get_datatype() const { return datatype; }
@@ -594,10 +614,21 @@ public:
};
struct Varying {
+ enum Stage {
+ STAGE_UNKNOWN,
+ STAGE_VERTEX, // transition stage to STAGE_VERTEX_TO_FRAGMENT or STAGE_VERTEX_TO_LIGHT, emits error if they are not used
+ STAGE_FRAGMENT, // transition stage to STAGE_FRAGMENT_TO_LIGHT, emits error if it's not used
+ STAGE_VERTEX_TO_FRAGMENT,
+ STAGE_VERTEX_TO_LIGHT,
+ STAGE_FRAGMENT_TO_LIGHT,
+ };
+
+ Stage stage = STAGE_UNKNOWN;
DataType type = TYPE_VOID;
DataInterpolation interpolation = INTERPOLATION_FLAT;
DataPrecision precision = PRECISION_DEFAULT;
int array_size = 0;
+ TkPos tkpos;
Varying() {}
};
@@ -717,6 +748,7 @@ public:
static uint32_t get_type_size(DataType p_type);
static void get_keyword_list(List<String> *r_keywords);
+ static bool is_control_flow_keyword(String p_keyword);
static void get_builtin_funcs(List<String> *r_keywords);
struct BuiltInInfo {
@@ -749,7 +781,8 @@ public:
Map<StringName, BuiltInInfo> built_ins;
Map<StringName, StageFunctionInfo> stage_functions;
- bool can_discard;
+ bool can_discard = false;
+ bool main_function = false;
};
static bool has_builtin(const Map<StringName, ShaderLanguage::FunctionInfo> &p_functions, const StringName &p_name);
@@ -774,11 +807,9 @@ private:
int tk_line;
StringName current_function;
+ bool last_const = false;
- struct TkPos {
- int char_idx;
- int tk_line;
- };
+ VaryingFunctionNames varying_function_names;
TkPos _get_tkpos() {
TkPos tkp;
@@ -819,7 +850,7 @@ private:
IDENTIFIER_CONSTANT,
};
- bool _find_identifier(const BlockNode *p_block, bool p_allow_reassign, const FunctionInfo &p_function_info, const StringName &p_identifier, DataType *r_data_type = nullptr, IdentifierType *r_type = nullptr, bool *r_is_const = nullptr, int *r_array_size = nullptr, StringName *r_struct_name = nullptr);
+ bool _find_identifier(const BlockNode *p_block, bool p_allow_reassign, const FunctionInfo &p_function_info, const StringName &p_identifier, DataType *r_data_type = nullptr, IdentifierType *r_type = nullptr, bool *r_is_const = nullptr, int *r_array_size = nullptr, StringName *r_struct_name = nullptr, ConstantNode::Value *r_constant_value = nullptr);
bool _is_operator_assign(Operator p_op) const;
bool _validate_assign(Node *p_node, const FunctionInfo &p_function_info, String *r_message = nullptr);
bool _validate_operator(OperatorNode *p_op, DataType *r_ret_type = nullptr);
@@ -846,6 +877,7 @@ private:
StringName completion_function;
StringName completion_struct;
int completion_argument;
+ const Map<StringName, FunctionInfo> *stages = nullptr;
bool _get_completable_identifier(BlockNode *p_block, CompletionType p_type, StringName &identifier);
static const BuiltinFuncDef builtin_func_defs[];
@@ -858,8 +890,12 @@ private:
bool _parse_function_arguments(BlockNode *p_block, const FunctionInfo &p_function_info, OperatorNode *p_func, int *r_complete_arg = nullptr);
bool _propagate_function_call_sampler_uniform_settings(StringName p_name, int p_argument, TextureFilter p_filter, TextureRepeat p_repeat);
bool _propagate_function_call_sampler_builtin_reference(StringName p_name, int p_argument, const StringName &p_builtin);
+ bool _validate_varying_assign(ShaderNode::Varying &p_varying, String *r_message);
+ bool _validate_varying_using(ShaderNode::Varying &p_varying, String *r_message);
+ bool _check_node_constness(const Node *p_node) const;
Node *_parse_expression(BlockNode *p_block, const FunctionInfo &p_function_info);
+ Node *_parse_array_constructor(BlockNode *p_block, const FunctionInfo &p_function_info, DataType p_type, const StringName &p_struct_name, int p_array_size);
ShaderLanguage::Node *_reduce_expression(BlockNode *p_block, ShaderLanguage::Node *p_node);
Node *_parse_and_reduce_expression(BlockNode *p_block, const FunctionInfo &p_function_info);
@@ -878,8 +914,8 @@ public:
void clear();
static String get_shader_type(const String &p_code);
- Error compile(const String &p_code, const Map<StringName, FunctionInfo> &p_functions, const Vector<StringName> &p_render_modes, const Set<String> &p_shader_types, GlobalVariableGetTypeFunc p_global_variable_type_func);
- Error complete(const String &p_code, const Map<StringName, FunctionInfo> &p_functions, const Vector<StringName> &p_render_modes, const Set<String> &p_shader_types, GlobalVariableGetTypeFunc p_global_variable_type_func, List<ScriptCodeCompletionOption> *r_options, String &r_call_hint);
+ Error compile(const String &p_code, const Map<StringName, FunctionInfo> &p_functions, const Vector<StringName> &p_render_modes, const VaryingFunctionNames &p_varying_function_names, const Set<String> &p_shader_types, GlobalVariableGetTypeFunc p_global_variable_type_func);
+ Error complete(const String &p_code, const Map<StringName, FunctionInfo> &p_functions, const Vector<StringName> &p_render_modes, const VaryingFunctionNames &p_varying_function_names, const Set<String> &p_shader_types, GlobalVariableGetTypeFunc p_global_variable_type_func, List<ScriptCodeCompletionOption> *r_options, String &r_call_hint);
String get_error_text();
int get_error_line();
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-15 12:32:38 +0000