2724 lines
69 KiB
C++
2724 lines
69 KiB
C++
/*************************************************************************/
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/* shader_language.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* http://www.godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
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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_language.h"
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#include "print_string.h"
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#include "os/os.h"
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static bool _is_text_char(CharType c) {
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return (c>='a' && c<='z') || (c>='A' && c<='Z') || (c>='0' && c<='9') || c=='_';
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}
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static bool _is_number(CharType c) {
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return (c>='0' && c<='9');
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}
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static bool _is_hex(CharType c) {
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return (c>='0' && c<='9') || (c>='a' && c<='f') || (c>='A' && c<='F');
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}
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const char * ShaderLanguage::token_names[TK_MAX]={
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"EMPTY",
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"INDENTIFIER",
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"TRUE",
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"FALSE",
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"REAL_CONSTANT",
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"TYPE_VOID",
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"TYPE_BOOL",
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"TYPE_FLOAT",
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"TYPE_VEC2",
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"TYPE_VEC3",
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"TYPE_VEC4",
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"TYPE_MAT2",
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"TYPE_MAT3",
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"TYPE_MAT4",
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"TYPE_TEXTURE",
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"TYPE_CUBEMAP",
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"TYPE_COLOR",
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"OP_EQUAL",
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"OP_NOT_EQUAL",
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"OP_LESS",
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"OP_LESS_EQUAL",
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"OP_GREATER",
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"OP_GREATER_EQUAL",
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"OP_AND",
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"OP_OR",
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"OP_NOT",
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"OP_ADD",
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"OP_SUB",
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"OP_MUL",
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"OP_DIV",
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"OP_NEG",
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"OP_ASSIGN",
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"OP_ASSIGN_ADD",
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"OP_ASSIGN_SUB",
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"OP_ASSIGN_MUL",
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"OP_ASSIGN_DIV",
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"CF_IF",
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"CF_ELSE",
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"CF_RETURN",
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"BRACKET_OPEN",
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"BRACKET_CLOSE",
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"CURLY_BRACKET_OPEN",
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"CURLY_BRACKET_CLOSE",
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"PARENTHESIS_OPEN",
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"PARENTHESIS_CLOSE",
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"COMMA",
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"SEMICOLON",
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"PERIOD",
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"UNIFORM",
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"ERROR",
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};
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ShaderLanguage::Token ShaderLanguage::read_token(const CharType* p_text,int p_len,int &r_line,int &r_chars) {
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#define GETCHAR(m_idx) ((m_idx<p_len)?p_text[m_idx]:CharType(0))
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r_chars=1; //by default everything eats one char
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switch(GETCHAR(0)) {
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case '\t':
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case '\r':
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case ' ':
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return Token();
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case '\n':
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r_line++;
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return Token();
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case '/': {
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switch(GETCHAR(1)) {
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case '*': { // block comment
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while(true) {
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if (GETCHAR(r_chars+1)==0) {
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r_chars+=1;
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break;
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} if (GETCHAR(r_chars+1)=='*' && GETCHAR(r_chars+2)=='/') {
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r_chars+=3;
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break;
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} if (GETCHAR(r_chars+1)=='\n') {
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r_line++;
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}
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r_chars++;
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}
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return Token();
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} break;
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case '/': { // line comment skip
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while(GETCHAR(r_chars+1)!='\n' && GETCHAR(r_chars+1)!=0) {
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r_chars++;
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}
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r_chars++;
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//r_line++;
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return Token();
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} break;
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case '=': { // diveq
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r_chars=2;
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return Token(TK_OP_ASSIGN_DIV);
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} break;
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default:
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return Token(TK_OP_DIV);
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}
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} break;
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case '=': {
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if (GETCHAR(1)=='=') {
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r_chars++;
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return Token(TK_OP_EQUAL);
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}
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return Token(TK_OP_ASSIGN);
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} break;
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case '<': {
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if (GETCHAR(1)=='=') {
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r_chars++;
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return Token(TK_OP_LESS_EQUAL);
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} /*else if (GETCHAR(1)=='<') {
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r_chars++;
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if (GETCHAR(2)=='=') {
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r_chars++;
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return Token(TK_OP_ASSIGN_SHIFT_LEFT);
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}
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return Token(TK_OP_SHIFT_LEFT);
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}*/
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return Token(TK_OP_LESS);
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} break;
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case '>': {
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if (GETCHAR(1)=='=') {
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r_chars++;
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return Token(TK_OP_GREATER_EQUAL);
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}/* else if (GETCHAR(1)=='<') {
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r_chars++;
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if (GETCHAR(2)=='=') {
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r_chars++;
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return Token(TK_OP_ASSIGN_SHIFT_RIGHT);
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}
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return Token(TK_OP_SHIFT_RIGHT);
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}*/
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return Token(TK_OP_GREATER);
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} break;
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case '!': {
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if (GETCHAR(1)=='=') {
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r_chars++;
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return Token(TK_OP_NOT_EQUAL);
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}
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return Token(TK_OP_NOT);
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} break;
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//case '"' //string - no strings in shader
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//case '\'' //string - no strings in shader
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case '{':
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return Token(TK_CURLY_BRACKET_OPEN);
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case '}':
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return Token(TK_CURLY_BRACKET_CLOSE);
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//case '[':
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// return Token(TK_BRACKET_OPEN);
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//case ']':
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// return Token(TK_BRACKET_CLOSE);
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case '(':
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return Token(TK_PARENTHESIS_OPEN);
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case ')':
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return Token(TK_PARENTHESIS_CLOSE);
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case ',':
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return Token(TK_COMMA);
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case ';':
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return Token(TK_SEMICOLON);
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//case '?':
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// return Token(TK_QUESTION_MARK);
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//case ':':
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// return Token(TK_COLON); //for methods maybe but now useless.
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//case '^':
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// return Token(TK_OP_BIT_XOR);
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//case '~':
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// return Token(TK_OP_BIT_INVERT);
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case '&': {
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if (GETCHAR(1)=='&') {
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r_chars++;
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return Token(TK_OP_AND);
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}
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return Token(TK_ERROR,"Unknown character");
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/*
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if (GETCHAR(1)=='=') {
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r_chars++;
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return Token(TK_OP_ASSIGN_BIT_AND);
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} else if (GETCHAR(1)=='&') {
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r_chars++;
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return Token(TK_OP_AND);
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}
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return TK_OP_BIT_AND;*/
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} break;
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case '|': {
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if (GETCHAR(1)=='|') {
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r_chars++;
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return Token(TK_OP_OR);
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}
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return Token(TK_ERROR,"Unknown character");
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/*
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if (GETCHAR(1)=='=') {
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r_chars++;
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return Token(TK_OP_ASSIGN_BIT_OR);
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} else if (GETCHAR(1)=='|') {
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r_chars++;
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return Token(TK_OP_OR);
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}
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return TK_OP_BIT_OR;
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*/
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} break;
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case '*': {
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if (GETCHAR(1)=='=') {
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r_chars++;
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return Token(TK_OP_ASSIGN_MUL);
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}
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return TK_OP_MUL;
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} break;
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case '+': {
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if (GETCHAR(1)=='=') {
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r_chars++;
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return Token(TK_OP_ASSIGN_ADD);
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} /*else if (GETCHAR(1)=='+') {
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r_chars++;
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return Token(TK_OP_PLUS_PLUS);
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}*/
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return TK_OP_ADD;
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} break;
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case '-': {
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if (GETCHAR(1)=='=') {
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r_chars++;
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return Token(TK_OP_ASSIGN_SUB);
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}/* else if (GETCHAR(1)=='-') {
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r_chars++;
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return Token(TK_OP_MINUS_MINUS);
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}*/
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return TK_OP_SUB;
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} break;
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/*case '%': {
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if (GETCHAR(1)=='=') {
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r_chars++;
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return Token(TK_OP_ASSIGN_MOD);
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}
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return TK_OP_MOD;
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} break;*/
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default: {
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if (_is_number(GETCHAR(0)) || (GETCHAR(0)=='.' && _is_number(GETCHAR(1)))) {
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// parse number
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bool period_found=false;
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bool exponent_found=false;
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bool hexa_found=false;
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bool sign_found=false;
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String str;
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int i=0;
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while(true) {
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if (GETCHAR(i)=='.') {
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if (period_found || exponent_found)
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return Token(TK_ERROR,"Invalid numeric constant");
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period_found=true;
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} else if (GETCHAR(i)=='x') {
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if (hexa_found || str.length()!=1 || str[0]!='0')
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return Token(TK_ERROR,"Invalid numeric constant");
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hexa_found=true;
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} else if (GETCHAR(i)=='e') {
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if (hexa_found || exponent_found)
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return Token(TK_ERROR,"Invalid numeric constant");
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exponent_found=true;
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} else if (_is_number(GETCHAR(i))) {
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//all ok
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} else if (hexa_found && _is_hex(GETCHAR(i))) {
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} else if ((GETCHAR(i)=='-' || GETCHAR(i)=='+') && exponent_found) {
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if (sign_found)
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return Token(TK_ERROR,"Invalid numeric constant");
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sign_found=true;
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} else
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break;
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str+=CharType(GETCHAR(i));
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i++;
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}
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if (!_is_number(str[str.length()-1]))
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return Token(TK_ERROR,"Invalid numeric constant");
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r_chars+=str.length()-1;
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return Token(TK_REAL_CONSTANT,str);
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/*
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if (period_found)
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return Token(TK_NUMBER_REAL,str);
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else
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return Token(TK_NUMBER_INTEGER,str);*/
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}
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if (GETCHAR(0)=='.') {
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//parse period
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return Token(TK_PERIOD);
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}
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if (_is_text_char(GETCHAR(0))) {
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// parse identifier
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String str;
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str+=CharType(GETCHAR(0));
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while(_is_text_char(GETCHAR(r_chars))) {
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str+=CharType(GETCHAR(r_chars));
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r_chars++;
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}
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//see if keyword
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struct _kws { TokenType token; const char *text;};
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static const _kws keyword_list[]={
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{TK_TRUE,"true"},
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{TK_FALSE,"false"},
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{TK_TYPE_VOID,"void"},
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{TK_TYPE_BOOL,"bool"},
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/*{TK_TYPE_INT,"int"},
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{TK_TYPE_INT2,"int2"},
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{TK_TYPE_INT3,"int3"},
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{TK_TYPE_INT4,"int4"},*/
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{TK_TYPE_FLOAT,"float"},
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/*{TK_TYPE_FLOAT2,"float2"},
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{TK_TYPE_FLOAT3,"float3"},
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{TK_TYPE_FLOAT4,"float4"},*/
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{TK_TYPE_VEC2,"vec2"},
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{TK_TYPE_VEC3,"vec3"},
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{TK_TYPE_VEC4,"vec4"},
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{TK_TYPE_TEXTURE,"texture"},
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{TK_TYPE_CUBEMAP,"cubemap"},
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{TK_TYPE_COLOR,"color"},
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{TK_TYPE_MAT2,"mat2"},
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/*{TK_TYPE_MAT3,"mat3"},
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{TK_TYPE_MAT4,"mat3"},*/
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{TK_TYPE_MAT3,"mat3"},
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{TK_TYPE_MAT4,"mat4"},
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{TK_CF_IF,"if"},
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{TK_CF_ELSE,"else"},
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/*
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{TK_CF_FOR,"for"},
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{TK_CF_WHILE,"while"},
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{TK_CF_DO,"do"},
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{TK_CF_SWITCH,"switch"},
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{TK_CF_BREAK,"break"},
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{TK_CF_CONTINUE,"continue"},*/
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{TK_CF_RETURN,"return"},
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{TK_UNIFORM,"uniform"},
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{TK_ERROR,NULL}
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};
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int idx=0;
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while(keyword_list[idx].text) {
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if (str==keyword_list[idx].text)
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return Token(keyword_list[idx].token);
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idx++;
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}
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return Token(TK_INDENTIFIER,str);
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}
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if (GETCHAR(0)>32)
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return Token(TK_ERROR,"Tokenizer: Unknown character #"+itos(GETCHAR(0))+": '"+String::chr(GETCHAR(0))+"'");
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else
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return Token(TK_ERROR,"Tokenizer: Unknown character #"+itos(GETCHAR(0)));
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} break;
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}
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ERR_PRINT("BUG");
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return Token();
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}
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Error ShaderLanguage::tokenize(const String& p_text,Vector<Token> *p_tokens,String *r_error,int *r_err_line,int *r_err_column) {
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int len =p_text.length();
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int pos=0;
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int line=0;
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int col=0;
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while(pos<len) {
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int advance=0;
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int prev_line=line;
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Token t = read_token(&p_text[pos],len-pos,line,advance);
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t.line=line;
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t.col=col;
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if (t.type==TK_ERROR) {
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if (r_error) {
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*r_error=t.text;
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*r_err_line=line;
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*r_err_column=col;
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return ERR_COMPILATION_FAILED;
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}
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}
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if (line==prev_line) {
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col+=advance;
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} else {
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col=0;
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//p_tokens->push_back(Token(TK_LINE,itos(line)))
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}
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if (t.type!=TK_EMPTY)
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p_tokens->push_back(t);
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pos+=advance;
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}
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return OK;
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}
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String ShaderLanguage::lex_debug(const String& p_code) {
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Vector<Token> tokens;
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String error;
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int errline,errcol;
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if (tokenize(p_code,&tokens,&error,&errline,&errcol)!=OK)
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return error;
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String ret;
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for(int i=0;i<tokens.size();i++) {
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ret+=String(token_names[tokens[i].type])+":"+itos(tokens[i].line)+":"+itos(tokens[i].col)+":"+tokens[i].text+"\n";
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}
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return ret;
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}
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bool ShaderLanguage::is_token_datatype(TokenType p_type) {
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return
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(p_type==TK_TYPE_VOID) ||
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(p_type==TK_TYPE_BOOL) ||
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(p_type==TK_TYPE_FLOAT) ||
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(p_type==TK_TYPE_VEC2) ||
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(p_type==TK_TYPE_VEC3) ||
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(p_type==TK_TYPE_VEC4) ||
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(p_type==TK_TYPE_COLOR) ||
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(p_type==TK_TYPE_MAT2) ||
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(p_type==TK_TYPE_MAT3) ||
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(p_type==TK_TYPE_MAT4) ||
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(p_type==TK_TYPE_CUBEMAP) ||
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(p_type==TK_TYPE_TEXTURE);
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}
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ShaderLanguage::DataType ShaderLanguage::get_token_datatype(TokenType p_type) {
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switch(p_type) {
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case TK_TYPE_VOID: return TYPE_VOID;
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case TK_TYPE_BOOL: return TYPE_BOOL;
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case TK_TYPE_FLOAT: return TYPE_FLOAT;
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case TK_TYPE_VEC2: return TYPE_VEC2;
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case TK_TYPE_VEC3: return TYPE_VEC3;
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case TK_TYPE_VEC4: return TYPE_VEC4;
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case TK_TYPE_COLOR: return TYPE_VEC4;
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case TK_TYPE_MAT2: return TYPE_MAT2;
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case TK_TYPE_MAT3: return TYPE_MAT3;
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case TK_TYPE_MAT4: return TYPE_MAT4;
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case TK_TYPE_TEXTURE: return TYPE_TEXTURE;
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case TK_TYPE_CUBEMAP: return TYPE_CUBEMAP;
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default: return TYPE_VOID;
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}
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return TYPE_VOID;
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}
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|
|
String ShaderLanguage::get_datatype_name(DataType p_type) {
|
|
|
|
switch(p_type) {
|
|
|
|
case TYPE_VOID: return "void";
|
|
case TYPE_BOOL: return "bool";
|
|
case TYPE_FLOAT: return "float";
|
|
case TYPE_VEC2: return "vec2";
|
|
case TYPE_VEC3: return "vec3";
|
|
case TYPE_VEC4: return "vec4";
|
|
case TYPE_MAT2: return "mat2";
|
|
case TYPE_MAT3: return "mat3";
|
|
case TYPE_MAT4: return "mat4";
|
|
case TYPE_TEXTURE: return "texture";
|
|
case TYPE_CUBEMAP: return "cubemap";
|
|
default: return "";
|
|
}
|
|
|
|
return "";
|
|
}
|
|
|
|
|
|
bool ShaderLanguage::is_token_nonvoid_datatype(TokenType p_type) {
|
|
|
|
return
|
|
(p_type==TK_TYPE_BOOL) ||
|
|
(p_type==TK_TYPE_FLOAT) ||
|
|
(p_type==TK_TYPE_VEC2) ||
|
|
(p_type==TK_TYPE_VEC3) ||
|
|
(p_type==TK_TYPE_VEC4) ||
|
|
(p_type==TK_TYPE_COLOR) ||
|
|
(p_type==TK_TYPE_MAT2) ||
|
|
(p_type==TK_TYPE_MAT3) ||
|
|
(p_type==TK_TYPE_MAT4) ||
|
|
(p_type==TK_TYPE_TEXTURE) ||
|
|
(p_type==TK_TYPE_CUBEMAP);
|
|
|
|
}
|
|
|
|
|
|
bool ShaderLanguage::parser_is_at_function(Parser& parser) {
|
|
|
|
return (is_token_datatype(parser.get_next_token_type(0)) && parser.get_next_token_type(1)==TK_INDENTIFIER && parser.get_next_token_type(2)==TK_PARENTHESIS_OPEN);
|
|
}
|
|
|
|
|
|
|
|
bool ShaderLanguage::test_existing_identifier(Node *p_node,const StringName p_identifier,bool p_func,bool p_var,bool p_builtin) {
|
|
|
|
Node *node = p_node;
|
|
|
|
while(node) {
|
|
|
|
if (node->type==Node::TYPE_BLOCK) {
|
|
|
|
BlockNode *block = (BlockNode*)node;
|
|
if (block->variables.has(p_identifier))
|
|
return true;
|
|
} else if (node->type==Node::TYPE_PROGRAM) {
|
|
|
|
ProgramNode *program = (ProgramNode*)node;
|
|
for(int i=0;i<program->functions.size();i++) {
|
|
|
|
if (program->functions[i].name==p_identifier) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
if(program->builtin_variables.has(p_identifier)) {
|
|
return true;
|
|
}
|
|
if(program->uniforms.has(p_identifier)) {
|
|
return true;
|
|
}
|
|
|
|
} else if (node->type==Node::TYPE_FUNCTION) {
|
|
|
|
FunctionNode *func=(FunctionNode*)node;
|
|
for(int i=0;i<func->arguments.size();i++)
|
|
if (func->arguments[i].name==p_identifier)
|
|
return true;
|
|
}
|
|
|
|
node=node->parent;
|
|
}
|
|
|
|
// try keywords
|
|
|
|
int idx=0;
|
|
|
|
//todo optimize
|
|
while(intrinsic_func_defs[idx].name) {
|
|
|
|
if (p_identifier.operator String()==intrinsic_func_defs[idx].name)
|
|
return true;
|
|
idx++;
|
|
}
|
|
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
Error ShaderLanguage::parse_function(Parser& parser,BlockNode *p_block) {
|
|
|
|
if (!p_block->parent || p_block->parent->type!=Node::TYPE_PROGRAM) {
|
|
parser.set_error("Misplaced function");
|
|
return ERR_PARSE_ERROR;
|
|
|
|
}
|
|
|
|
|
|
ProgramNode *program = (ProgramNode*)p_block->parent;
|
|
|
|
StringName name = parser.get_next_token(1).text;
|
|
|
|
if (test_existing_identifier(p_block,name)) {
|
|
|
|
parser.set_error("Duplicate Identifier (existing variable/builtin/function): "+name);
|
|
return ERR_PARSE_ERROR;
|
|
|
|
}
|
|
|
|
|
|
FunctionNode *function = parser.create_node<FunctionNode>(program);
|
|
function->body = parser.create_node<BlockNode>(function);
|
|
|
|
function->name=name;
|
|
|
|
function->return_type=get_token_datatype(parser.get_next_token_type(0));
|
|
|
|
{ //add to programnode
|
|
ProgramNode::Function f;
|
|
f.name=name;
|
|
f.function=function;
|
|
program->functions.push_back(f);
|
|
}
|
|
|
|
int ofs=3;
|
|
|
|
while(true) {
|
|
|
|
//end of arguments
|
|
if (parser.get_next_token_type(ofs)==TK_PARENTHESIS_CLOSE) {
|
|
ofs++;
|
|
break;
|
|
}
|
|
//next argument awaits
|
|
if (parser.get_next_token_type(ofs)==TK_COMMA) {
|
|
if (!is_token_nonvoid_datatype(parser.get_next_token_type(ofs+1))) {
|
|
parser.set_error("Expected Identifier or ')' following ','");
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
ofs++;
|
|
continue;
|
|
}
|
|
|
|
|
|
|
|
if (!is_token_nonvoid_datatype(parser.get_next_token_type(ofs+0))) {
|
|
parser.set_error("Invalid Argument Type");
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
|
|
DataType identtype=get_token_datatype(parser.get_next_token_type(ofs+0));
|
|
|
|
if (parser.get_next_token_type(ofs+1)!=TK_INDENTIFIER) {
|
|
parser.set_error("Expected Argument Identifier");
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
|
|
StringName identname=parser.get_next_token(ofs+1).text;
|
|
|
|
if (test_existing_identifier(function,identname)) {
|
|
parser.set_error("Duplicate Argument Identifier: "+identname);
|
|
return ERR_DUPLICATE_SYMBOL;
|
|
}
|
|
|
|
FunctionNode::Argument arg;
|
|
arg.name=identname;
|
|
arg.type=identtype;
|
|
//function->body->variables[arg.name]=arg.type;
|
|
function->arguments.push_back(arg);
|
|
|
|
ofs+=2;
|
|
}
|
|
|
|
parser.advance(ofs);
|
|
// match {
|
|
if (parser.get_next_token_type()!=TK_CURLY_BRACKET_OPEN) {
|
|
parser.set_error("Expected '{'");
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
|
|
parser.advance();
|
|
Error err = parse_block(parser,function->body);
|
|
|
|
if (err)
|
|
return err;
|
|
|
|
// make sure that if the function has a return type, it does return something..
|
|
if (function->return_type!=TYPE_VOID) {
|
|
bool found=false;
|
|
for(int i=0;i<function->body->statements.size();i++) {
|
|
if (function->body->statements[i]->type==Node::TYPE_CONTROL_FLOW) {
|
|
|
|
ControlFlowNode *cf = (ControlFlowNode*)function->body->statements[i];
|
|
if (cf->flow_op==FLOW_OP_RETURN) {
|
|
// type of return was already checked when inserted
|
|
// no need to check here
|
|
found=true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!found) {
|
|
parser.set_error("Function must return a value (use the main block)");
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
|
|
const ShaderLanguage::IntrinsicFuncDef ShaderLanguage::intrinsic_func_defs[]={
|
|
//constructors
|
|
{"bool",TYPE_BOOL,{TYPE_BOOL,TYPE_VOID}},
|
|
{"float",TYPE_FLOAT,{TYPE_FLOAT,TYPE_VOID}},
|
|
{"vec2",TYPE_VEC2,{TYPE_FLOAT,TYPE_VOID}},
|
|
{"vec2",TYPE_VEC2,{TYPE_FLOAT,TYPE_FLOAT,TYPE_VOID}},
|
|
{"vec3",TYPE_VEC3,{TYPE_FLOAT,TYPE_VOID}},
|
|
{"vec3",TYPE_VEC3,{TYPE_FLOAT,TYPE_FLOAT,TYPE_FLOAT,TYPE_VOID}},
|
|
{"vec3",TYPE_VEC3,{TYPE_VEC2,TYPE_FLOAT,TYPE_VOID}},
|
|
{"vec3",TYPE_VEC3,{TYPE_FLOAT,TYPE_VEC2,TYPE_VOID}},
|
|
{"vec4",TYPE_VEC4,{TYPE_FLOAT,TYPE_VOID}},
|
|
{"vec4",TYPE_VEC4,{TYPE_FLOAT,TYPE_FLOAT,TYPE_FLOAT,TYPE_FLOAT,TYPE_VOID}},
|
|
{"vec4",TYPE_VEC4,{TYPE_FLOAT,TYPE_VEC2,TYPE_FLOAT,TYPE_VOID}},
|
|
{"vec4",TYPE_VEC4,{TYPE_VEC2,TYPE_FLOAT,TYPE_FLOAT,TYPE_VOID}},
|
|
{"vec4",TYPE_VEC4,{TYPE_FLOAT,TYPE_FLOAT,TYPE_VEC2,TYPE_VOID}},
|
|
{"vec4",TYPE_VEC4,{TYPE_FLOAT,TYPE_VEC3,TYPE_VOID}},
|
|
{"vec4",TYPE_VEC4,{TYPE_VEC3,TYPE_FLOAT,TYPE_VOID}},
|
|
{"vec4",TYPE_VEC4,{TYPE_VEC2,TYPE_VEC2,TYPE_VOID}},
|
|
{"mat2",TYPE_MAT2,{TYPE_VEC2,TYPE_VEC2,TYPE_VOID}},
|
|
{"mat3",TYPE_MAT3,{TYPE_VEC3,TYPE_VEC3,TYPE_VEC3,TYPE_VOID}},
|
|
{"mat4",TYPE_MAT4,{TYPE_VEC4,TYPE_VEC4,TYPE_VEC4,TYPE_VEC4,TYPE_VOID}},
|
|
//intrinsics - trigonometry
|
|
{"sin",TYPE_FLOAT,{TYPE_FLOAT,TYPE_VOID}},
|
|
{"cos",TYPE_FLOAT,{TYPE_FLOAT,TYPE_VOID}},
|
|
{"tan",TYPE_FLOAT,{TYPE_FLOAT,TYPE_VOID}},
|
|
{"asin",TYPE_FLOAT,{TYPE_FLOAT,TYPE_VOID}},
|
|
{"acos",TYPE_FLOAT,{TYPE_FLOAT,TYPE_VOID}},
|
|
{"atan",TYPE_FLOAT,{TYPE_FLOAT,TYPE_VOID}},
|
|
{"atan2",TYPE_FLOAT,{TYPE_FLOAT,TYPE_FLOAT,TYPE_VOID}},
|
|
{"sinh",TYPE_FLOAT,{TYPE_FLOAT,TYPE_VOID}},
|
|
{"cosh",TYPE_FLOAT,{TYPE_FLOAT,TYPE_VOID}},
|
|
{"tanh",TYPE_FLOAT,{TYPE_FLOAT,TYPE_VOID}},
|
|
//intrinsics - exponential
|
|
{"pow",TYPE_FLOAT,{TYPE_FLOAT,TYPE_FLOAT,TYPE_VOID}},
|
|
{"pow",TYPE_VEC2,{TYPE_VEC2,TYPE_FLOAT,TYPE_VOID}},
|
|
{"pow",TYPE_VEC2,{TYPE_VEC2,TYPE_VEC2,TYPE_VOID}},
|
|
{"pow",TYPE_VEC3,{TYPE_VEC3,TYPE_FLOAT,TYPE_VOID}},
|
|
{"pow",TYPE_VEC3,{TYPE_VEC3,TYPE_VEC3,TYPE_VOID}},
|
|
{"pow",TYPE_VEC4,{TYPE_VEC4,TYPE_FLOAT,TYPE_VOID}},
|
|
{"pow",TYPE_VEC4,{TYPE_VEC4,TYPE_VEC4,TYPE_VOID}},
|
|
{"exp",TYPE_FLOAT,{TYPE_FLOAT,TYPE_VOID}},
|
|
{"exp",TYPE_VEC2,{TYPE_VEC2,TYPE_VOID}},
|
|
{"exp",TYPE_VEC3,{TYPE_VEC3,TYPE_VOID}},
|
|
{"exp",TYPE_VEC4,{TYPE_VEC4,TYPE_VOID}},
|
|
{"log",TYPE_FLOAT,{TYPE_FLOAT,TYPE_VOID}},
|
|
{"log",TYPE_VEC2,{TYPE_VEC2,TYPE_VOID}},
|
|
{"log",TYPE_VEC3,{TYPE_VEC3,TYPE_VOID}},
|
|
{"log",TYPE_VEC4,{TYPE_VEC4,TYPE_VOID}},
|
|
{"sqrt",TYPE_FLOAT,{TYPE_FLOAT,TYPE_VOID}},
|
|
{"sqrt",TYPE_VEC2,{TYPE_VEC2,TYPE_VOID}},
|
|
{"sqrt",TYPE_VEC3,{TYPE_VEC3,TYPE_VOID}},
|
|
{"sqrt",TYPE_VEC4,{TYPE_VEC4,TYPE_VOID}},
|
|
//intrinsics - common
|
|
{"abs",TYPE_FLOAT,{TYPE_FLOAT,TYPE_VOID}},
|
|
{"abs",TYPE_VEC2,{TYPE_VEC2,TYPE_VOID}},
|
|
{"abs",TYPE_VEC3,{TYPE_VEC3,TYPE_VOID}},
|
|
{"abs",TYPE_VEC4,{TYPE_VEC4,TYPE_VOID}},
|
|
{"sign",TYPE_FLOAT,{TYPE_FLOAT,TYPE_VOID}},
|
|
{"sign",TYPE_VEC2,{TYPE_VEC2,TYPE_VOID}},
|
|
{"sign",TYPE_VEC3,{TYPE_VEC3,TYPE_VOID}},
|
|
{"sign",TYPE_VEC4,{TYPE_VEC4,TYPE_VOID}},
|
|
{"floor",TYPE_FLOAT,{TYPE_FLOAT,TYPE_VOID}},
|
|
{"floor",TYPE_VEC2,{TYPE_VEC2,TYPE_VOID}},
|
|
{"floor",TYPE_VEC3,{TYPE_VEC3,TYPE_VOID}},
|
|
{"floor",TYPE_VEC4,{TYPE_VEC4,TYPE_VOID}},
|
|
{"trunc",TYPE_FLOAT,{TYPE_FLOAT,TYPE_VOID}},
|
|
{"trunc",TYPE_VEC2,{TYPE_VEC2,TYPE_VOID}},
|
|
{"trunc",TYPE_VEC3,{TYPE_VEC3,TYPE_VOID}},
|
|
{"trunc",TYPE_VEC4,{TYPE_VEC4,TYPE_VOID}},
|
|
{"round",TYPE_FLOAT,{TYPE_FLOAT,TYPE_VOID}},
|
|
{"round",TYPE_VEC2,{TYPE_VEC2,TYPE_VOID}},
|
|
{"round",TYPE_VEC3,{TYPE_VEC3,TYPE_VOID}},
|
|
{"round",TYPE_VEC4,{TYPE_VEC4,TYPE_VOID}},
|
|
{"ceil",TYPE_FLOAT,{TYPE_FLOAT,TYPE_VOID}},
|
|
{"ceil",TYPE_VEC2,{TYPE_VEC2,TYPE_VOID}},
|
|
{"ceil",TYPE_VEC3,{TYPE_VEC3,TYPE_VOID}},
|
|
{"ceil",TYPE_VEC4,{TYPE_VEC4,TYPE_VOID}},
|
|
{"fract",TYPE_FLOAT,{TYPE_FLOAT,TYPE_VOID}},
|
|
{"fract",TYPE_VEC2,{TYPE_VEC2,TYPE_VOID}},
|
|
{"fract",TYPE_VEC3,{TYPE_VEC3,TYPE_VOID}},
|
|
{"fract",TYPE_VEC4,{TYPE_VEC4,TYPE_VOID}},
|
|
{"mod",TYPE_FLOAT,{TYPE_FLOAT,TYPE_FLOAT,TYPE_VOID}},
|
|
{"mod",TYPE_VEC2,{TYPE_VEC2,TYPE_VEC2,TYPE_VOID}},
|
|
{"mod",TYPE_VEC3,{TYPE_VEC3,TYPE_VEC3,TYPE_VOID}},
|
|
{"mod",TYPE_VEC4,{TYPE_VEC4,TYPE_VEC4,TYPE_VOID}},
|
|
{"min",TYPE_FLOAT,{TYPE_FLOAT,TYPE_FLOAT,TYPE_VOID}},
|
|
{"min",TYPE_VEC2,{TYPE_VEC2,TYPE_VEC2,TYPE_VOID}},
|
|
{"min",TYPE_VEC3,{TYPE_VEC3,TYPE_VEC3,TYPE_VOID}},
|
|
{"min",TYPE_VEC4,{TYPE_VEC4,TYPE_VEC4,TYPE_VOID}},
|
|
{"max",TYPE_FLOAT,{TYPE_FLOAT,TYPE_FLOAT,TYPE_VOID}},
|
|
{"max",TYPE_VEC2,{TYPE_VEC2,TYPE_VEC2,TYPE_VOID}},
|
|
{"max",TYPE_VEC3,{TYPE_VEC3,TYPE_VEC3,TYPE_VOID}},
|
|
{"max",TYPE_VEC4,{TYPE_VEC4,TYPE_VEC4,TYPE_VOID}},
|
|
{"clamp",TYPE_FLOAT,{TYPE_FLOAT,TYPE_FLOAT,TYPE_FLOAT,TYPE_VOID}},
|
|
{"clamp",TYPE_VEC2,{TYPE_VEC2,TYPE_VEC2,TYPE_VEC2,TYPE_VOID}},
|
|
{"clamp",TYPE_VEC3,{TYPE_VEC3,TYPE_VEC3,TYPE_VEC3,TYPE_VOID}},
|
|
{"clamp",TYPE_VEC4,{TYPE_VEC4,TYPE_VEC4,TYPE_VEC4,TYPE_VOID}},
|
|
{"clamp",TYPE_VEC2,{TYPE_VEC2,TYPE_FLOAT,TYPE_FLOAT,TYPE_VOID}},
|
|
{"clamp",TYPE_VEC3,{TYPE_VEC3,TYPE_FLOAT,TYPE_FLOAT,TYPE_VOID}},
|
|
{"clamp",TYPE_VEC4,{TYPE_VEC4,TYPE_FLOAT,TYPE_FLOAT,TYPE_VOID}},
|
|
{"mix",TYPE_FLOAT,{TYPE_FLOAT,TYPE_FLOAT,TYPE_FLOAT,TYPE_VOID}},
|
|
{"mix",TYPE_VEC2,{TYPE_VEC2,TYPE_VEC2,TYPE_FLOAT,TYPE_VOID}},
|
|
{"mix",TYPE_VEC2,{TYPE_VEC2,TYPE_VEC2,TYPE_VEC2,TYPE_VOID}},
|
|
{"mix",TYPE_VEC3,{TYPE_VEC3,TYPE_VEC3,TYPE_FLOAT,TYPE_VOID}},
|
|
{"mix",TYPE_VEC3,{TYPE_VEC3,TYPE_VEC3,TYPE_VEC3,TYPE_VOID}},
|
|
{"mix",TYPE_VEC4,{TYPE_VEC4,TYPE_VEC4,TYPE_FLOAT,TYPE_VOID}},
|
|
{"mix",TYPE_VEC4,{TYPE_VEC4,TYPE_VEC4,TYPE_VEC4,TYPE_VOID}},
|
|
{"step",TYPE_FLOAT,{TYPE_FLOAT,TYPE_FLOAT,TYPE_VOID}},
|
|
{"step",TYPE_VEC2,{TYPE_VEC2,TYPE_VEC2,TYPE_VOID}},
|
|
{"step",TYPE_VEC3,{TYPE_VEC3,TYPE_VEC3,TYPE_VOID}},
|
|
{"step",TYPE_VEC4,{TYPE_VEC4,TYPE_VEC4,TYPE_VOID}},
|
|
{"step",TYPE_VEC2,{TYPE_FLOAT,TYPE_VEC2,TYPE_VOID}},
|
|
{"step",TYPE_VEC3,{TYPE_FLOAT,TYPE_VEC3,TYPE_VOID}},
|
|
{"step",TYPE_VEC4,{TYPE_FLOAT,TYPE_VEC4,TYPE_VOID}},
|
|
{"smoothstep",TYPE_FLOAT,{TYPE_FLOAT,TYPE_FLOAT,TYPE_FLOAT,TYPE_VOID}},
|
|
{"smoothstep",TYPE_VEC2,{TYPE_VEC2,TYPE_VEC2,TYPE_VEC2,TYPE_VOID}},
|
|
{"smoothstep",TYPE_VEC3,{TYPE_VEC3,TYPE_VEC3,TYPE_VEC3,TYPE_VOID}},
|
|
{"smoothstep",TYPE_VEC4,{TYPE_VEC4,TYPE_VEC4,TYPE_VEC4,TYPE_VOID}},
|
|
{"smoothstep",TYPE_VEC2,{TYPE_FLOAT,TYPE_FLOAT,TYPE_VEC2,TYPE_VOID}},
|
|
{"smoothstep",TYPE_VEC3,{TYPE_FLOAT,TYPE_FLOAT,TYPE_VEC3,TYPE_VOID}},
|
|
{"smoothstep",TYPE_VEC4,{TYPE_FLOAT,TYPE_FLOAT,TYPE_VEC4,TYPE_VOID}},
|
|
|
|
//intrinsics - geometric
|
|
{"length",TYPE_FLOAT,{TYPE_VEC2,TYPE_VOID}},
|
|
{"length",TYPE_FLOAT,{TYPE_VEC3,TYPE_VOID}},
|
|
{"length",TYPE_FLOAT,{TYPE_VEC4,TYPE_VOID}},
|
|
{"distance",TYPE_FLOAT,{TYPE_VEC2,TYPE_VEC2,TYPE_VOID}},
|
|
{"distance",TYPE_FLOAT,{TYPE_VEC3,TYPE_VEC3,TYPE_VOID}},
|
|
{"distance",TYPE_FLOAT,{TYPE_VEC4,TYPE_VEC4,TYPE_VOID}},
|
|
{"dot",TYPE_FLOAT,{TYPE_VEC2,TYPE_VEC2,TYPE_VOID}},
|
|
{"dot",TYPE_FLOAT,{TYPE_VEC3,TYPE_VEC3,TYPE_VOID}},
|
|
{"dot",TYPE_FLOAT,{TYPE_VEC4,TYPE_VEC4,TYPE_VOID}},
|
|
{"cross",TYPE_VEC3,{TYPE_VEC3,TYPE_VEC3,TYPE_VOID}},
|
|
{"normalize",TYPE_VEC2,{TYPE_VEC2,TYPE_VOID}},
|
|
{"normalize",TYPE_VEC3,{TYPE_VEC3,TYPE_VOID}},
|
|
{"normalize",TYPE_VEC4,{TYPE_VEC4,TYPE_VOID}},
|
|
{"reflect",TYPE_VEC3,{TYPE_VEC3,TYPE_VEC3,TYPE_VOID}},
|
|
{"refract",TYPE_VEC3,{TYPE_VEC3,TYPE_VEC3,TYPE_FLOAT,TYPE_VOID}},
|
|
//intrinsics - texture
|
|
{"tex",TYPE_VEC4,{TYPE_TEXTURE,TYPE_VEC2,TYPE_VOID}},
|
|
{"texcube",TYPE_VEC4,{TYPE_CUBEMAP,TYPE_VEC3,TYPE_VOID}},
|
|
{"texscreen",TYPE_VEC3,{TYPE_VEC2,TYPE_VOID}},
|
|
{"texpos",TYPE_VEC3,{TYPE_VEC3,TYPE_VOID}},
|
|
|
|
{NULL,TYPE_VOID,{TYPE_VOID}}
|
|
|
|
};
|
|
|
|
const ShaderLanguage::OperatorDef ShaderLanguage::operator_defs[]={
|
|
|
|
{OP_ASSIGN,TYPE_VOID,{TYPE_BOOL,TYPE_BOOL}},
|
|
{OP_ASSIGN,TYPE_VOID,{TYPE_FLOAT,TYPE_FLOAT}},
|
|
{OP_ASSIGN,TYPE_VOID,{TYPE_VEC2,TYPE_VEC2}},
|
|
{OP_ASSIGN,TYPE_VOID,{TYPE_VEC3,TYPE_VEC3}},
|
|
{OP_ASSIGN,TYPE_VOID,{TYPE_VEC4,TYPE_VEC4}},
|
|
{OP_ASSIGN,TYPE_VOID,{TYPE_MAT2,TYPE_MAT2}},
|
|
{OP_ASSIGN,TYPE_VOID,{TYPE_MAT3,TYPE_MAT3}},
|
|
{OP_ASSIGN,TYPE_VOID,{TYPE_MAT4,TYPE_MAT4}},
|
|
{OP_ADD,TYPE_FLOAT,{TYPE_FLOAT,TYPE_FLOAT}},
|
|
{OP_ADD,TYPE_VEC2,{TYPE_VEC2,TYPE_VEC2}},
|
|
{OP_ADD,TYPE_VEC3,{TYPE_VEC3,TYPE_VEC3}},
|
|
{OP_ADD,TYPE_VEC4,{TYPE_VEC4,TYPE_VEC4}},
|
|
{OP_SUB,TYPE_FLOAT,{TYPE_FLOAT,TYPE_FLOAT}},
|
|
{OP_SUB,TYPE_VEC2,{TYPE_VEC2,TYPE_VEC2}},
|
|
{OP_SUB,TYPE_VEC3,{TYPE_VEC3,TYPE_VEC3}},
|
|
{OP_SUB,TYPE_VEC4,{TYPE_VEC4,TYPE_VEC4}},
|
|
{OP_MUL,TYPE_FLOAT,{TYPE_FLOAT,TYPE_FLOAT}},
|
|
{OP_MUL,TYPE_VEC2,{TYPE_VEC2,TYPE_VEC2}},
|
|
{OP_MUL,TYPE_VEC2,{TYPE_VEC2,TYPE_FLOAT}},
|
|
{OP_MUL,TYPE_VEC2,{TYPE_FLOAT,TYPE_VEC2}},
|
|
{OP_MUL,TYPE_VEC2,{TYPE_VEC2,TYPE_MAT3}},
|
|
{OP_MUL,TYPE_VEC2,{TYPE_MAT2,TYPE_VEC2}},
|
|
{OP_MUL,TYPE_VEC2,{TYPE_VEC2,TYPE_MAT2}},
|
|
{OP_MUL,TYPE_VEC2,{TYPE_MAT3,TYPE_VEC2}},
|
|
{OP_MUL,TYPE_VEC2,{TYPE_VEC2,TYPE_MAT4}},
|
|
{OP_MUL,TYPE_VEC2,{TYPE_MAT4,TYPE_VEC2}},
|
|
{OP_MUL,TYPE_VEC3,{TYPE_VEC3,TYPE_VEC3}},
|
|
{OP_MUL,TYPE_VEC3,{TYPE_VEC3,TYPE_FLOAT}},
|
|
{OP_MUL,TYPE_VEC3,{TYPE_FLOAT,TYPE_VEC3}},
|
|
{OP_MUL,TYPE_VEC3,{TYPE_MAT3,TYPE_VEC3}},
|
|
{OP_MUL,TYPE_VEC3,{TYPE_MAT4,TYPE_VEC3}},
|
|
{OP_MUL,TYPE_VEC3,{TYPE_VEC3,TYPE_MAT3}},
|
|
{OP_MUL,TYPE_VEC4,{TYPE_VEC4,TYPE_VEC4}},
|
|
{OP_MUL,TYPE_VEC4,{TYPE_VEC4,TYPE_FLOAT}},
|
|
{OP_MUL,TYPE_VEC4,{TYPE_FLOAT,TYPE_VEC4}},
|
|
{OP_MUL,TYPE_VEC4,{TYPE_MAT4,TYPE_VEC4}},
|
|
{OP_MUL,TYPE_VEC4,{TYPE_VEC4,TYPE_MAT4}},
|
|
{OP_MUL,TYPE_MAT2,{TYPE_MAT2,TYPE_MAT2}},
|
|
{OP_MUL,TYPE_MAT3,{TYPE_MAT3,TYPE_MAT3}},
|
|
{OP_MUL,TYPE_MAT4,{TYPE_MAT4,TYPE_MAT4}},
|
|
{OP_DIV,TYPE_FLOAT,{TYPE_FLOAT,TYPE_FLOAT}},
|
|
{OP_DIV,TYPE_VEC2,{TYPE_VEC2,TYPE_VEC2}},
|
|
{OP_DIV,TYPE_VEC2,{TYPE_VEC2,TYPE_FLOAT}},
|
|
{OP_DIV,TYPE_VEC2,{TYPE_FLOAT,TYPE_VEC2}},
|
|
{OP_DIV,TYPE_VEC3,{TYPE_VEC3,TYPE_VEC3}},
|
|
{OP_DIV,TYPE_VEC3,{TYPE_VEC3,TYPE_FLOAT}},
|
|
{OP_DIV,TYPE_VEC3,{TYPE_FLOAT,TYPE_VEC3}},
|
|
{OP_DIV,TYPE_VEC4,{TYPE_VEC4,TYPE_VEC4}},
|
|
{OP_DIV,TYPE_VEC4,{TYPE_VEC4,TYPE_FLOAT}},
|
|
{OP_DIV,TYPE_VEC4,{TYPE_FLOAT,TYPE_VEC4}},
|
|
{OP_ASSIGN_ADD,TYPE_VOID,{TYPE_FLOAT,TYPE_FLOAT}},
|
|
{OP_ASSIGN_ADD,TYPE_VOID,{TYPE_VEC2,TYPE_VEC2}},
|
|
{OP_ASSIGN_ADD,TYPE_VOID,{TYPE_VEC3,TYPE_VEC3}},
|
|
{OP_ASSIGN_ADD,TYPE_VOID,{TYPE_VEC4,TYPE_VEC4}},
|
|
{OP_ASSIGN_ADD,TYPE_VOID,{TYPE_VEC2,TYPE_FLOAT}},
|
|
{OP_ASSIGN_ADD,TYPE_VOID,{TYPE_VEC3,TYPE_FLOAT}},
|
|
{OP_ASSIGN_ADD,TYPE_VOID,{TYPE_VEC4,TYPE_FLOAT}},
|
|
{OP_ASSIGN_SUB,TYPE_VOID,{TYPE_FLOAT,TYPE_FLOAT}},
|
|
{OP_ASSIGN_SUB,TYPE_VOID,{TYPE_VEC2,TYPE_VEC2}},
|
|
{OP_ASSIGN_SUB,TYPE_VOID,{TYPE_VEC3,TYPE_VEC3}},
|
|
{OP_ASSIGN_SUB,TYPE_VOID,{TYPE_VEC4,TYPE_VEC4}},
|
|
{OP_ASSIGN_SUB,TYPE_VOID,{TYPE_VEC2,TYPE_FLOAT}},
|
|
{OP_ASSIGN_SUB,TYPE_VOID,{TYPE_VEC3,TYPE_FLOAT}},
|
|
{OP_ASSIGN_SUB,TYPE_VOID,{TYPE_VEC4,TYPE_FLOAT}},
|
|
{OP_ASSIGN_MUL,TYPE_VOID,{TYPE_FLOAT,TYPE_FLOAT}},
|
|
{OP_ASSIGN_MUL,TYPE_VOID,{TYPE_VEC2,TYPE_VEC2}},
|
|
{OP_ASSIGN_MUL,TYPE_VOID,{TYPE_VEC2,TYPE_FLOAT}},
|
|
{OP_ASSIGN_MUL,TYPE_VOID,{TYPE_VEC2,TYPE_MAT2}},
|
|
{OP_ASSIGN_MUL,TYPE_VOID,{TYPE_MAT2,TYPE_MAT2}},
|
|
{OP_ASSIGN_MUL,TYPE_VOID,{TYPE_VEC3,TYPE_MAT3}},
|
|
{OP_ASSIGN_MUL,TYPE_VOID,{TYPE_VEC3,TYPE_VEC3}},
|
|
{OP_ASSIGN_MUL,TYPE_VOID,{TYPE_VEC3,TYPE_FLOAT}},
|
|
{OP_ASSIGN_MUL,TYPE_VOID,{TYPE_VEC3,TYPE_MAT4}},
|
|
{OP_ASSIGN_MUL,TYPE_VOID,{TYPE_VEC4,TYPE_VEC4}},
|
|
{OP_ASSIGN_MUL,TYPE_VOID,{TYPE_VEC4,TYPE_FLOAT}},
|
|
{OP_ASSIGN_MUL,TYPE_VOID,{TYPE_VEC4,TYPE_MAT4}},
|
|
{OP_ASSIGN_MUL,TYPE_VOID,{TYPE_MAT3,TYPE_MAT3}},
|
|
{OP_ASSIGN_MUL,TYPE_VOID,{TYPE_MAT4,TYPE_MAT4}},
|
|
{OP_ASSIGN_DIV,TYPE_VOID,{TYPE_FLOAT,TYPE_FLOAT}},
|
|
{OP_ASSIGN_DIV,TYPE_VOID,{TYPE_VEC2,TYPE_VEC2}},
|
|
{OP_ASSIGN_DIV,TYPE_VOID,{TYPE_VEC2,TYPE_FLOAT}},
|
|
{OP_ASSIGN_DIV,TYPE_VOID,{TYPE_VEC3,TYPE_VEC3}},
|
|
{OP_ASSIGN_DIV,TYPE_VOID,{TYPE_VEC3,TYPE_FLOAT}},
|
|
{OP_ASSIGN_DIV,TYPE_VOID,{TYPE_VEC4,TYPE_VEC4}},
|
|
{OP_ASSIGN_DIV,TYPE_VOID,{TYPE_VEC4,TYPE_FLOAT}},
|
|
{OP_NEG,TYPE_FLOAT,{TYPE_FLOAT,TYPE_VOID}},
|
|
{OP_NEG,TYPE_VEC2,{TYPE_VEC2,TYPE_VOID}},
|
|
{OP_NEG,TYPE_VEC3,{TYPE_VEC3,TYPE_VOID}},
|
|
{OP_NEG,TYPE_VEC4,{TYPE_VEC4,TYPE_VOID}},
|
|
{OP_NOT,TYPE_BOOL,{TYPE_BOOL,TYPE_VOID}},
|
|
{OP_CMP_EQ,TYPE_BOOL,{TYPE_BOOL,TYPE_BOOL}},
|
|
{OP_CMP_EQ,TYPE_BOOL,{TYPE_FLOAT,TYPE_FLOAT}},
|
|
{OP_CMP_EQ,TYPE_BOOL,{TYPE_VEC3,TYPE_VEC2}},
|
|
{OP_CMP_EQ,TYPE_BOOL,{TYPE_VEC3,TYPE_VEC3}},
|
|
{OP_CMP_EQ,TYPE_BOOL,{TYPE_VEC3,TYPE_VEC4}},
|
|
//{OP_CMP_EQ,TYPE_MAT3,{TYPE_MAT4,TYPE_MAT3}}, ??
|
|
//{OP_CMP_EQ,TYPE_MAT4,{TYPE_MAT4,TYPE_MAT4}}, ??
|
|
{OP_CMP_NEQ,TYPE_BOOL,{TYPE_BOOL,TYPE_BOOL}},
|
|
{OP_CMP_NEQ,TYPE_BOOL,{TYPE_FLOAT,TYPE_FLOAT}},
|
|
{OP_CMP_NEQ,TYPE_BOOL,{TYPE_VEC2,TYPE_VEC2}},
|
|
{OP_CMP_NEQ,TYPE_BOOL,{TYPE_VEC3,TYPE_VEC3}},
|
|
{OP_CMP_NEQ,TYPE_BOOL,{TYPE_VEC4,TYPE_VEC4}},
|
|
//{OP_CMP_NEQ,TYPE_MAT4,{TYPE_MAT4,TYPE_MAT4}}, //?
|
|
{OP_CMP_LEQ,TYPE_BOOL,{TYPE_FLOAT,TYPE_FLOAT}},
|
|
{OP_CMP_GEQ,TYPE_BOOL,{TYPE_FLOAT,TYPE_FLOAT}},
|
|
{OP_CMP_LESS,TYPE_BOOL,{TYPE_FLOAT,TYPE_FLOAT}},
|
|
{OP_CMP_GREATER,TYPE_BOOL,{TYPE_FLOAT,TYPE_FLOAT}},
|
|
{OP_CMP_OR,TYPE_BOOL,{TYPE_BOOL,TYPE_BOOL}},
|
|
{OP_CMP_AND,TYPE_BOOL,{TYPE_BOOL,TYPE_BOOL}},
|
|
{OP_MAX,TYPE_VOID,{TYPE_VOID,TYPE_VOID}}
|
|
};
|
|
|
|
|
|
const ShaderLanguage::BuiltinsDef ShaderLanguage::vertex_builtins_defs[]={
|
|
|
|
{ "SRC_VERTEX", TYPE_VEC3},
|
|
{ "SRC_NORMAL", TYPE_VEC3},
|
|
{ "SRC_TANGENT", TYPE_VEC3},
|
|
{ "SRC_BINORMALF", TYPE_FLOAT},
|
|
|
|
{ "POSITION", TYPE_VEC4 },
|
|
{ "VERTEX", TYPE_VEC3},
|
|
{ "NORMAL", TYPE_VEC3},
|
|
{ "TANGENT", TYPE_VEC3},
|
|
{ "BINORMAL", TYPE_VEC3},
|
|
{ "UV", TYPE_VEC2},
|
|
{ "UV2", TYPE_VEC2},
|
|
{ "COLOR", TYPE_VEC4},
|
|
{ "BONES", TYPE_VEC4},
|
|
{ "WEIGHTS", TYPE_VEC4},
|
|
{ "VAR1", TYPE_VEC4},
|
|
{ "VAR2", TYPE_VEC4},
|
|
{ "SPEC_EXP", TYPE_FLOAT},
|
|
{ "POINT_SIZE", TYPE_FLOAT},
|
|
|
|
//builtins
|
|
{ "WORLD_MATRIX", TYPE_MAT4},
|
|
{ "INV_CAMERA_MATRIX", TYPE_MAT4},
|
|
{ "PROJECTION_MATRIX", TYPE_MAT4},
|
|
{ "MODELVIEW_MATRIX", TYPE_MAT4},
|
|
{ "INSTANCE_ID", TYPE_FLOAT},
|
|
{ "TIME", TYPE_FLOAT},
|
|
{ NULL, TYPE_VOID},
|
|
};
|
|
const ShaderLanguage::BuiltinsDef ShaderLanguage::fragment_builtins_defs[]={
|
|
|
|
{ "VERTEX", TYPE_VEC3},
|
|
{ "POSITION", TYPE_VEC4},
|
|
{ "NORMAL", TYPE_VEC3},
|
|
{ "TANGENT", TYPE_VEC3},
|
|
{ "BINORMAL", TYPE_VEC3},
|
|
{ "NORMALMAP", TYPE_VEC3},
|
|
{ "NORMALMAP_DEPTH", TYPE_FLOAT},
|
|
{ "UV", TYPE_VEC2},
|
|
{ "UV2", TYPE_VEC2},
|
|
{ "COLOR", TYPE_VEC4},
|
|
{ "NORMAL", TYPE_VEC3},
|
|
{ "VAR1", TYPE_VEC4},
|
|
{ "VAR2", TYPE_VEC4},
|
|
{ "DIFFUSE", TYPE_VEC3},
|
|
{ "DIFFUSE_ALPHA", TYPE_VEC4},
|
|
{ "SPECULAR", TYPE_VEC3},
|
|
{ "EMISSION", TYPE_VEC3},
|
|
{ "SPEC_EXP", TYPE_FLOAT},
|
|
{ "GLOW", TYPE_FLOAT},
|
|
{ "SHADE_PARAM", TYPE_FLOAT},
|
|
{ "DISCARD", TYPE_BOOL},
|
|
{ "SCREEN_UV", TYPE_VEC2},
|
|
{ "POINT_COORD", TYPE_VEC2},
|
|
{ "INV_CAMERA_MATRIX", TYPE_MAT4},
|
|
|
|
// { "SCREEN_POS", TYPE_VEC2},
|
|
// { "SCREEN_TEXEL_SIZE", TYPE_VEC2},
|
|
{ "TIME", TYPE_FLOAT},
|
|
{ NULL, TYPE_VOID}
|
|
|
|
};
|
|
|
|
const ShaderLanguage::BuiltinsDef ShaderLanguage::light_builtins_defs[]={
|
|
|
|
{ "NORMAL", TYPE_VEC3},
|
|
{ "LIGHT_DIR", TYPE_VEC3},
|
|
{ "LIGHT_DIFFUSE", TYPE_VEC3},
|
|
{ "LIGHT_SPECULAR", TYPE_VEC3},
|
|
{ "EYE_VEC", TYPE_VEC3},
|
|
{ "DIFFUSE", TYPE_VEC3},
|
|
{ "SPECULAR", TYPE_VEC3},
|
|
{ "SPECULAR_EXP", TYPE_FLOAT},
|
|
{ "SHADE_PARAM", TYPE_FLOAT},
|
|
{ "LIGHT", TYPE_VEC3},
|
|
{ "SHADOW", TYPE_VEC3 },
|
|
{ "POINT_COORD", TYPE_VEC2 },
|
|
// { "SCREEN_POS", TYPE_VEC2},
|
|
// { "SCREEN_TEXEL_SIZE", TYPE_VEC2},
|
|
{ "TIME", TYPE_FLOAT},
|
|
{ NULL, TYPE_VOID}
|
|
|
|
};
|
|
|
|
|
|
|
|
const ShaderLanguage::BuiltinsDef ShaderLanguage::ci_vertex_builtins_defs[]={
|
|
|
|
{ "SRC_VERTEX", TYPE_VEC2},
|
|
{ "VERTEX", TYPE_VEC2},
|
|
{ "WORLD_VERTEX", TYPE_VEC2},
|
|
{ "UV", TYPE_VEC2},
|
|
{ "COLOR", TYPE_VEC4},
|
|
{ "VAR1", TYPE_VEC4},
|
|
{ "VAR2", TYPE_VEC4},
|
|
{ "POINT_SIZE", TYPE_FLOAT},
|
|
|
|
//builtins
|
|
{ "WORLD_MATRIX", TYPE_MAT4},
|
|
{ "PROJECTION_MATRIX", TYPE_MAT4},
|
|
{ "EXTRA_MATRIX", TYPE_MAT4},
|
|
{ "TIME", TYPE_FLOAT},
|
|
{ NULL, TYPE_VOID},
|
|
};
|
|
const ShaderLanguage::BuiltinsDef ShaderLanguage::ci_fragment_builtins_defs[]={
|
|
|
|
{ "SRC_COLOR", TYPE_VEC4},
|
|
{ "POSITION", TYPE_VEC2},
|
|
{ "NORMAL", TYPE_VEC3},
|
|
{ "NORMALMAP", TYPE_VEC3},
|
|
{ "NORMALMAP_DEPTH", TYPE_FLOAT},
|
|
{ "UV", TYPE_VEC2},
|
|
{ "COLOR", TYPE_VEC4},
|
|
{ "TEXTURE", TYPE_TEXTURE},
|
|
{ "TEXTURE_PIXEL_SIZE", TYPE_VEC2},
|
|
{ "VAR1", TYPE_VEC4},
|
|
{ "VAR2", TYPE_VEC4},
|
|
{ "SCREEN_UV", TYPE_VEC2},
|
|
{ "POINT_COORD", TYPE_VEC2},
|
|
|
|
// { "SCREEN_POS", TYPE_VEC2},
|
|
// { "SCREEN_TEXEL_SIZE", TYPE_VEC2},
|
|
{ "TIME", TYPE_FLOAT},
|
|
{ NULL, TYPE_VOID}
|
|
|
|
};
|
|
|
|
const ShaderLanguage::BuiltinsDef ShaderLanguage::ci_light_builtins_defs[]={
|
|
|
|
{ "POSITION", TYPE_VEC2},
|
|
{ "NORMAL", TYPE_VEC3},
|
|
{ "UV", TYPE_VEC2},
|
|
{ "COLOR", TYPE_VEC4},
|
|
{ "TEXTURE", TYPE_TEXTURE},
|
|
{ "TEXTURE_PIXEL_SIZE", TYPE_VEC2},
|
|
{ "VAR1", TYPE_VEC4},
|
|
{ "VAR2", TYPE_VEC4},
|
|
{ "SCREEN_UV", TYPE_VEC2},
|
|
{ "LIGHT_VEC", TYPE_VEC2},
|
|
{ "LIGHT_HEIGHT", TYPE_FLOAT},
|
|
{ "LIGHT_COLOR", TYPE_VEC4},
|
|
{ "LIGHT_UV", TYPE_VEC2},
|
|
{ "LIGHT_SHADOW", TYPE_VEC4},
|
|
{ "LIGHT", TYPE_VEC4},
|
|
{ "SHADOW", TYPE_VEC4},
|
|
{ "POINT_COORD", TYPE_VEC2},
|
|
// { "SCREEN_POS", TYPE_VEC2},
|
|
// { "SCREEN_TEXEL_SIZE", TYPE_VEC2},
|
|
{ "TIME", TYPE_FLOAT},
|
|
{ NULL, TYPE_VOID}
|
|
|
|
};
|
|
|
|
const ShaderLanguage::BuiltinsDef ShaderLanguage::postprocess_fragment_builtins_defs[]={
|
|
|
|
{ "IN_COLOR", TYPE_VEC3},
|
|
{ "IN_POSITION", TYPE_VEC3},
|
|
{ "OUT_COLOR", TYPE_VEC3},
|
|
{ "SCREEN_POS", TYPE_VEC2},
|
|
{ "SCREEN_TEXEL_SIZE", TYPE_VEC2},
|
|
{ "TIME", TYPE_FLOAT},
|
|
{ NULL, TYPE_VOID}
|
|
};
|
|
|
|
|
|
|
|
ShaderLanguage::DataType ShaderLanguage::compute_node_type(Node *p_node) {
|
|
|
|
switch(p_node->type) {
|
|
|
|
case Node::TYPE_PROGRAM: ERR_FAIL_V(TYPE_VOID);
|
|
case Node::TYPE_FUNCTION: return static_cast<FunctionNode*>(p_node)->return_type;
|
|
case Node::TYPE_BLOCK: ERR_FAIL_V(TYPE_VOID);
|
|
case Node::TYPE_VARIABLE: return static_cast<VariableNode*>(p_node)->datatype_cache;
|
|
case Node::TYPE_CONSTANT: return static_cast<ConstantNode*>(p_node)->datatype;
|
|
case Node::TYPE_OPERATOR: return static_cast<OperatorNode*>(p_node)->return_cache;
|
|
case Node::TYPE_CONTROL_FLOW: ERR_FAIL_V(TYPE_VOID);
|
|
case Node::TYPE_MEMBER: return static_cast<MemberNode*>(p_node)->datatype;
|
|
}
|
|
|
|
return TYPE_VOID;
|
|
}
|
|
|
|
|
|
ShaderLanguage::Node* ShaderLanguage::validate_function_call(Parser&parser, OperatorNode *p_func) {
|
|
|
|
ERR_FAIL_COND_V(p_func->op!=OP_CALL && p_func->op!=OP_CONSTRUCT,NULL);
|
|
|
|
|
|
Vector<DataType> args;
|
|
|
|
ERR_FAIL_COND_V( p_func->arguments[0]->type!=Node::TYPE_VARIABLE, NULL );
|
|
|
|
String name = static_cast<VariableNode*>(p_func->arguments[0])->name.operator String();
|
|
|
|
bool all_const=true;
|
|
for(int i=1;i<p_func->arguments.size();i++) {
|
|
if (p_func->arguments[i]->type!=Node::TYPE_CONSTANT)
|
|
all_const=false;
|
|
args.push_back(compute_node_type(p_func->arguments[i]));
|
|
}
|
|
|
|
int argcount=args.size();
|
|
|
|
bool found_intrinsic=false;
|
|
|
|
if (argcount<=4) {
|
|
// test intrinsics
|
|
int idx=0;
|
|
|
|
while (intrinsic_func_defs[idx].name) {
|
|
|
|
if (name==intrinsic_func_defs[idx].name) {
|
|
|
|
bool fail=false;
|
|
for(int i=0;i<argcount;i++) {
|
|
|
|
if (args[i]!=intrinsic_func_defs[idx].args[i]) {
|
|
fail=true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!fail && argcount<4 && intrinsic_func_defs[idx].args[argcount]!=TYPE_VOID)
|
|
fail=true; //make sure the number of arguments matches
|
|
|
|
if (!fail) {
|
|
p_func->return_cache=intrinsic_func_defs[idx].rettype;
|
|
found_intrinsic=true;
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
idx++;
|
|
}
|
|
}
|
|
|
|
|
|
if (found_intrinsic) {
|
|
|
|
if (p_func->op==OP_CONSTRUCT && all_const) {
|
|
|
|
|
|
Vector<float> cdata;
|
|
for(int i=0;i<argcount;i++) {
|
|
|
|
Variant v = static_cast<ConstantNode*>(p_func->arguments[i+1])->value;
|
|
switch(v.get_type()) {
|
|
|
|
case Variant::REAL: cdata.push_back(v); break;
|
|
case Variant::VECTOR2: { Vector2 v2=v; cdata.push_back(v2.x); cdata.push_back(v2.y); } break;
|
|
case Variant::VECTOR3: { Vector3 v3=v; cdata.push_back(v3.x); cdata.push_back(v3.y); cdata.push_back(v3.z);} break;
|
|
case Variant::PLANE: { Plane v4=v; cdata.push_back(v4.normal.x); cdata.push_back(v4.normal.y); cdata.push_back(v4.normal.z); cdata.push_back(v4.d); } break;
|
|
default: ERR_FAIL_V(NULL);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
ConstantNode *cn = parser.create_node<ConstantNode>(p_func->parent);
|
|
Variant data;
|
|
switch(p_func->return_cache) {
|
|
case TYPE_FLOAT: data = cdata[0]; break;
|
|
case TYPE_VEC2:
|
|
if (cdata.size()==1)
|
|
data = Vector2(cdata[0],cdata[0]);
|
|
else
|
|
data = Vector2(cdata[0],cdata[1]);
|
|
|
|
break;
|
|
case TYPE_VEC3:
|
|
if (cdata.size()==1)
|
|
data = Vector3(cdata[0],cdata[0],cdata[0]);
|
|
else
|
|
data = Vector3(cdata[0],cdata[1],cdata[2]);
|
|
break;
|
|
case TYPE_VEC4:
|
|
if (cdata.size()==1)
|
|
data = Plane(cdata[0],cdata[0],cdata[0],cdata[0]);
|
|
else
|
|
data = Plane(cdata[0],cdata[1],cdata[2],cdata[3]);
|
|
break;
|
|
}
|
|
|
|
cn->datatype=p_func->return_cache;
|
|
cn->value=data;
|
|
return cn;
|
|
|
|
}
|
|
return p_func;
|
|
}
|
|
|
|
// try existing functions..
|
|
|
|
FunctionNode *exclude_function=NULL; //exclude current function (in case inside one)
|
|
|
|
|
|
Node *node = p_func;
|
|
|
|
while(node->parent) {
|
|
|
|
if (node->type==Node::TYPE_FUNCTION) {
|
|
|
|
exclude_function = (FunctionNode*)node;
|
|
}
|
|
|
|
node=node->parent;
|
|
}
|
|
|
|
ERR_FAIL_COND_V(node->type!=Node::TYPE_PROGRAM,NULL);
|
|
ProgramNode *program = (ProgramNode*)node;
|
|
|
|
for(int i=0;i<program->functions.size();i++) {
|
|
|
|
if (program->functions[i].function==exclude_function)
|
|
continue;
|
|
|
|
FunctionNode *pfunc = program->functions[i].function;
|
|
|
|
if (pfunc->arguments.size()!=args.size())
|
|
continue;
|
|
|
|
bool fail=false;
|
|
|
|
for(int i=0;i<args.size();i++) {
|
|
if (args[i]!=pfunc->arguments[i].type) {
|
|
fail=true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!fail && name == program->functions[i].name) {
|
|
p_func->return_cache=pfunc->return_type;
|
|
return p_func;
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
|
|
ShaderLanguage::Node * ShaderLanguage::validate_operator(Parser& parser,OperatorNode *p_func) {
|
|
|
|
int argcount = p_func->arguments.size();
|
|
ERR_FAIL_COND_V(argcount>2,NULL);
|
|
|
|
DataType argtype[2]={TYPE_VOID,TYPE_VOID};
|
|
bool all_const=true;
|
|
|
|
for(int i=0;i<argcount;i++) {
|
|
|
|
argtype[i]=compute_node_type(p_func->arguments[i]);
|
|
if (p_func->arguments[i]->type!=Node::TYPE_CONSTANT)
|
|
all_const=false;
|
|
|
|
}
|
|
int idx=0;
|
|
|
|
bool valid=false;
|
|
while(operator_defs[idx].op!=OP_MAX) {
|
|
|
|
if (p_func->op==operator_defs[idx].op) {
|
|
|
|
|
|
|
|
if (operator_defs[idx].args[0]==argtype[0] && operator_defs[idx].args[1]==argtype[1]) {
|
|
|
|
p_func->return_cache=operator_defs[idx].rettype;
|
|
valid=true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
idx++;
|
|
}
|
|
|
|
if (!valid)
|
|
return NULL;
|
|
|
|
#define _RCO2(m_op,m_vop)\
|
|
case m_op: {\
|
|
ConstantNode *cn = parser.create_node<ConstantNode>(p_func->parent);\
|
|
cn->datatype=p_func->return_cache; \
|
|
Variant::evaluate(m_vop,static_cast<ConstantNode*>(p_func->arguments[0])->value,static_cast<ConstantNode*>(p_func->arguments[1])->value,cn->value,valid);\
|
|
if (!valid)\
|
|
return NULL;\
|
|
return cn;\
|
|
} break;
|
|
|
|
#define _RCO1(m_op,m_vop)\
|
|
case m_op: {\
|
|
ConstantNode *cn = parser.create_node<ConstantNode>(p_func->parent);\
|
|
cn->datatype=p_func->return_cache; \
|
|
Variant::evaluate(m_vop,static_cast<ConstantNode*>(p_func->arguments[0])->value,Variant(),cn->value,valid);\
|
|
if (!valid)\
|
|
return NULL;\
|
|
return cn;\
|
|
} break;
|
|
|
|
if (all_const) {
|
|
//reduce constant operator
|
|
switch(p_func->op) {
|
|
_RCO2(OP_ADD,Variant::OP_ADD);
|
|
_RCO2(OP_SUB,Variant::OP_SUBSTRACT);
|
|
_RCO2(OP_MUL,Variant::OP_MULTIPLY);
|
|
_RCO2(OP_DIV,Variant::OP_DIVIDE);
|
|
_RCO1(OP_NEG,Variant::OP_NEGATE);
|
|
_RCO1(OP_NOT,Variant::OP_NOT);
|
|
_RCO2(OP_CMP_EQ,Variant::OP_EQUAL);
|
|
_RCO2(OP_CMP_NEQ,Variant::OP_NOT_EQUAL);
|
|
_RCO2(OP_CMP_LEQ,Variant::OP_LESS_EQUAL);
|
|
_RCO2(OP_CMP_GEQ,Variant::OP_GREATER_EQUAL);
|
|
_RCO2(OP_CMP_LESS,Variant::OP_LESS);
|
|
_RCO2(OP_CMP_GREATER,Variant::OP_GREATER);
|
|
_RCO2(OP_CMP_OR,Variant::OP_OR);
|
|
_RCO2(OP_CMP_AND,Variant::OP_AND);
|
|
default: {}
|
|
}
|
|
}
|
|
|
|
|
|
return p_func;
|
|
|
|
}
|
|
|
|
bool ShaderLanguage::is_token_operator(TokenType p_type) {
|
|
|
|
return (p_type==TK_OP_EQUAL) ||
|
|
(p_type==TK_OP_NOT_EQUAL) ||
|
|
(p_type==TK_OP_LESS) ||
|
|
(p_type==TK_OP_LESS_EQUAL) ||
|
|
(p_type==TK_OP_GREATER) ||
|
|
(p_type==TK_OP_GREATER_EQUAL) ||
|
|
(p_type==TK_OP_AND) ||
|
|
(p_type==TK_OP_OR) ||
|
|
(p_type==TK_OP_NOT) ||
|
|
(p_type==TK_OP_ADD) ||
|
|
(p_type==TK_OP_SUB) ||
|
|
(p_type==TK_OP_MUL) ||
|
|
(p_type==TK_OP_DIV) ||
|
|
(p_type==TK_OP_NEG) ||
|
|
(p_type==TK_OP_ASSIGN) ||
|
|
(p_type==TK_OP_ASSIGN_ADD) ||
|
|
(p_type==TK_OP_ASSIGN_SUB) ||
|
|
(p_type==TK_OP_ASSIGN_MUL) ||
|
|
(p_type==TK_OP_ASSIGN_DIV);
|
|
|
|
}
|
|
ShaderLanguage::Operator ShaderLanguage::get_token_operator(TokenType p_type) {
|
|
|
|
switch(p_type) {
|
|
case TK_OP_EQUAL: return OP_CMP_EQ ;
|
|
case TK_OP_NOT_EQUAL: return OP_CMP_NEQ;
|
|
case TK_OP_LESS: return OP_CMP_LESS ;
|
|
case TK_OP_LESS_EQUAL: return OP_CMP_LEQ ;
|
|
case TK_OP_GREATER: return OP_CMP_GREATER ;
|
|
case TK_OP_GREATER_EQUAL: return OP_CMP_GEQ ;
|
|
case TK_OP_AND: return OP_CMP_AND ;
|
|
case TK_OP_OR: return OP_CMP_OR ;
|
|
case TK_OP_NOT: return OP_NOT ;
|
|
case TK_OP_ADD: return OP_ADD ;
|
|
case TK_OP_SUB: return OP_SUB ;
|
|
case TK_OP_MUL: return OP_MUL ;
|
|
case TK_OP_DIV: return OP_DIV ;
|
|
case TK_OP_NEG: return OP_NEG ;
|
|
case TK_OP_ASSIGN: return OP_ASSIGN ;
|
|
case TK_OP_ASSIGN_ADD: return OP_ASSIGN_ADD ;
|
|
case TK_OP_ASSIGN_SUB: return OP_ASSIGN_SUB ;
|
|
case TK_OP_ASSIGN_MUL: return OP_ASSIGN_MUL ;
|
|
case TK_OP_ASSIGN_DIV: return OP_ASSIGN_DIV ;
|
|
default: ERR_FAIL_V(OP_MAX);
|
|
}
|
|
|
|
return OP_MAX;
|
|
}
|
|
|
|
|
|
Error ShaderLanguage::parse_expression(Parser& parser,Node *p_parent,Node **r_expr) {
|
|
|
|
Vector<Expression> expression;
|
|
//Vector<TokenType> operators;
|
|
|
|
while(true) {
|
|
|
|
Node *expr=NULL;
|
|
|
|
|
|
if (parser.get_next_token_type()==TK_PARENTHESIS_OPEN) {
|
|
//handle subexpression
|
|
parser.advance();
|
|
Error err = parse_expression(parser,p_parent,&expr);
|
|
if (err)
|
|
return err;
|
|
|
|
if (parser.get_next_token_type()!=TK_PARENTHESIS_CLOSE) {
|
|
|
|
parser.set_error("Expected ')' in expression");
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
|
|
parser.advance();
|
|
|
|
} else if (parser.get_next_token_type()==TK_REAL_CONSTANT) {
|
|
|
|
|
|
ConstantNode *constant = parser.create_node<ConstantNode>(p_parent);
|
|
constant->value=parser.get_next_token().text.operator String().to_double();
|
|
constant->datatype=TYPE_FLOAT;
|
|
expr=constant;
|
|
parser.advance();
|
|
} else if (parser.get_next_token_type()==TK_TRUE) {
|
|
//print_line("found true");
|
|
|
|
//handle true constant
|
|
ConstantNode *constant = parser.create_node<ConstantNode>(p_parent);
|
|
constant->value=true;
|
|
constant->datatype=TYPE_BOOL;
|
|
expr=constant;
|
|
parser.advance();
|
|
} else if (parser.get_next_token_type()==TK_FALSE) {
|
|
|
|
//handle false constant
|
|
ConstantNode *constant = parser.create_node<ConstantNode>(p_parent);
|
|
constant->value=false;
|
|
constant->datatype=TYPE_BOOL;
|
|
expr=constant;
|
|
parser.advance();
|
|
} else if (parser.get_next_token_type()==TK_TYPE_VOID) {
|
|
|
|
//make sure void is not used in expression
|
|
parser.set_error("Void value not allowed in Expression");
|
|
return ERR_PARSE_ERROR;
|
|
} else if (parser.get_next_token_type(1)==TK_PARENTHESIS_OPEN && (is_token_nonvoid_datatype(parser.get_next_token_type()) || parser.get_next_token_type()==TK_INDENTIFIER)) {
|
|
|
|
|
|
//function or constructor
|
|
StringName name;
|
|
DataType constructor=TYPE_VOID;
|
|
if (is_token_nonvoid_datatype(parser.get_next_token_type())) {
|
|
|
|
constructor=get_token_datatype(parser.get_next_token_type());
|
|
switch(get_token_datatype(parser.get_next_token_type())) {
|
|
case TYPE_BOOL: name="bool"; break;
|
|
case TYPE_FLOAT: name="float"; break;
|
|
case TYPE_VEC2: name="vec2"; break;
|
|
case TYPE_VEC3: name="vec3"; break;
|
|
case TYPE_VEC4: name="vec4"; break;
|
|
case TYPE_MAT2: name="mat2"; break;
|
|
case TYPE_MAT3: name="mat3"; break;
|
|
case TYPE_MAT4: name="mat4"; break;
|
|
default: ERR_FAIL_V(ERR_BUG);
|
|
}
|
|
} else {
|
|
|
|
name=parser.get_next_token().text;
|
|
}
|
|
|
|
if (!test_existing_identifier(p_parent,name)) {
|
|
|
|
parser.set_error("Unknown identifier in expression: "+name);
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
|
|
parser.advance(2);
|
|
|
|
OperatorNode *func = parser.create_node<OperatorNode>(p_parent);
|
|
|
|
func->op=constructor!=TYPE_VOID?OP_CONSTRUCT:OP_CALL;
|
|
|
|
VariableNode *funcname = parser.create_node<VariableNode>(func);
|
|
funcname->name=name;
|
|
func->arguments.push_back(funcname);
|
|
|
|
//parse parameters
|
|
|
|
if (parser.get_next_token_type()==TK_PARENTHESIS_CLOSE) {
|
|
parser.advance();
|
|
} else {
|
|
|
|
while(true) {
|
|
|
|
|
|
Node *arg=NULL;
|
|
Error err = parse_expression(parser,func,&arg);
|
|
if (err)
|
|
return err;
|
|
func->arguments.push_back(arg);
|
|
|
|
if (parser.get_next_token_type()==TK_PARENTHESIS_CLOSE) {
|
|
parser.advance();
|
|
break;
|
|
|
|
} else if (parser.get_next_token_type()==TK_COMMA) {
|
|
|
|
if (parser.get_next_token_type(1)==TK_PARENTHESIS_CLOSE) {
|
|
|
|
parser.set_error("Expression expected");
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
|
|
parser.advance();
|
|
} else {
|
|
// something is broken
|
|
parser.set_error("Expected ',' or ')'");
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
expr=validate_function_call(parser,func);
|
|
if (!expr) {
|
|
|
|
parser.set_error("Invalid arguments to function/constructor: "+StringName(name));
|
|
return ERR_PARSE_ERROR;
|
|
|
|
}
|
|
|
|
} else if (parser.get_next_token_type()==TK_INDENTIFIER) {
|
|
//probably variable
|
|
|
|
|
|
Node *node =p_parent;
|
|
bool existing=false;
|
|
DataType datatype;
|
|
StringName identifier=parser.get_next_token().text;
|
|
|
|
while(node) {
|
|
|
|
if (node->type==Node::TYPE_BLOCK) {
|
|
|
|
BlockNode *block = (BlockNode*)node;
|
|
|
|
if (block->variables.has(identifier)) {
|
|
existing=true;
|
|
datatype=block->variables[identifier];
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (node->type==Node::TYPE_FUNCTION) {
|
|
|
|
FunctionNode *function=(FunctionNode*)node;
|
|
for(int i=0;i<function->arguments.size();i++) {
|
|
if (function->arguments[i].name==identifier) {
|
|
existing=true;
|
|
datatype=function->arguments[i].type;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (existing)
|
|
break;
|
|
|
|
}
|
|
|
|
if (node->type==Node::TYPE_PROGRAM) {
|
|
|
|
ProgramNode *program = (ProgramNode*)node;
|
|
if (program->builtin_variables.has(identifier)) {
|
|
datatype = program->builtin_variables[identifier];
|
|
existing=true;
|
|
break;
|
|
}
|
|
if (program->uniforms.has(identifier)) {
|
|
datatype = program->uniforms[identifier].type;
|
|
existing=true;
|
|
break;
|
|
}
|
|
|
|
}
|
|
|
|
node=node->parent;
|
|
}
|
|
|
|
if (!existing) {
|
|
|
|
parser.set_error("Nonexistent identifier in expression: "+identifier);
|
|
return ERR_PARSE_ERROR;
|
|
|
|
}
|
|
|
|
VariableNode *varname = parser.create_node<VariableNode>(p_parent);
|
|
varname->name=identifier;
|
|
varname->datatype_cache=datatype;
|
|
parser.advance();
|
|
expr=varname;
|
|
|
|
} else if (parser.get_next_token_type()==TK_OP_SUB || parser.get_next_token_type()==TK_OP_NOT) {
|
|
|
|
//single prefix operators
|
|
TokenType token_type=parser.get_next_token_type();
|
|
parser.advance();
|
|
//Node *subexpr=NULL;
|
|
//Error err = parse_expression(parser,p_parent,&subexpr);
|
|
//if (err)
|
|
// return err;
|
|
|
|
//OperatorNode *op = parser.create_node<OperatorNode>(p_parent);
|
|
|
|
Expression e;
|
|
e.is_op=true;
|
|
|
|
switch(token_type) {
|
|
case TK_OP_SUB: e.op=TK_OP_NEG; break;
|
|
case TK_OP_NOT: e.op=TK_OP_NOT; break;
|
|
//case TK_OP_PLUS_PLUS: op->op=OP_PLUS_PLUS; break;
|
|
//case TK_OP_MINUS_MINUS: op->op=OP_MINUS_MINUS; break;
|
|
default: ERR_FAIL_V(ERR_BUG);
|
|
}
|
|
|
|
expression.push_back(e);
|
|
|
|
continue;
|
|
|
|
|
|
} else {
|
|
print_line("found bug?");
|
|
print_line("misplaced token: "+String(token_names[parser.get_next_token_type()]));
|
|
|
|
parser.set_error("Error parsing expression, misplaced: "+String(token_names[parser.get_next_token_type()]));
|
|
return ERR_PARSE_ERROR;
|
|
//nothing
|
|
}
|
|
|
|
ERR_FAIL_COND_V(!expr,ERR_BUG);
|
|
|
|
|
|
/* OK now see what's NEXT to the operator.. */
|
|
/* OK now see what's NEXT to the operator.. */
|
|
/* OK now see what's NEXT to the operator.. */
|
|
|
|
|
|
if (parser.get_next_token_type()==TK_PERIOD) {
|
|
|
|
if (parser.get_next_token_type(1)!=TK_INDENTIFIER) {
|
|
parser.set_error("Expected identifier as member");
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
|
|
DataType dt = compute_node_type(expr);
|
|
String ident = parser.get_next_token(1).text;
|
|
|
|
bool ok=true;
|
|
DataType member_type;
|
|
switch(dt) {
|
|
case TYPE_VEC2: {
|
|
|
|
int l = ident.length();
|
|
if (l==1) {
|
|
member_type=TYPE_FLOAT;
|
|
} else if (l==2) {
|
|
member_type=TYPE_VEC2;
|
|
} else {
|
|
ok=false;
|
|
break;
|
|
}
|
|
|
|
const CharType *c=ident.ptr();
|
|
for(int i=0;i<l;i++) {
|
|
|
|
switch(c[i]) {
|
|
case 'r':
|
|
case 'g':
|
|
case 'x':
|
|
case 'y':
|
|
break;
|
|
default:
|
|
ok=false;
|
|
break;
|
|
}
|
|
}
|
|
|
|
} break;
|
|
case TYPE_VEC3: {
|
|
|
|
int l = ident.length();
|
|
if (l==1) {
|
|
member_type=TYPE_FLOAT;
|
|
} else if (l==2) {
|
|
member_type=TYPE_VEC2;
|
|
} else if (l==3) {
|
|
member_type=TYPE_VEC3;
|
|
} else {
|
|
ok=false;
|
|
break;
|
|
}
|
|
|
|
const CharType *c=ident.ptr();
|
|
for(int i=0;i<l;i++) {
|
|
|
|
switch(c[i]) {
|
|
case 'r':
|
|
case 'g':
|
|
case 'b':
|
|
case 'x':
|
|
case 'y':
|
|
case 'z':
|
|
break;
|
|
default:
|
|
ok=false;
|
|
break;
|
|
}
|
|
}
|
|
|
|
} break;
|
|
case TYPE_VEC4: {
|
|
|
|
int l = ident.length();
|
|
if (l==1) {
|
|
member_type=TYPE_FLOAT;
|
|
} else if (l==2) {
|
|
member_type=TYPE_VEC2;
|
|
} else if (l==3) {
|
|
member_type=TYPE_VEC3;
|
|
} else if (l==4) {
|
|
member_type=TYPE_VEC4;
|
|
} else {
|
|
ok=false;
|
|
break;
|
|
}
|
|
|
|
const CharType *c=ident.ptr();
|
|
for(int i=0;i<l;i++) {
|
|
|
|
switch(c[i]) {
|
|
case 'r':
|
|
case 'g':
|
|
case 'b':
|
|
case 'a':
|
|
case 'x':
|
|
case 'y':
|
|
case 'z':
|
|
case 'w':
|
|
break;
|
|
default:
|
|
ok=false;
|
|
break;
|
|
}
|
|
}
|
|
|
|
} break;
|
|
case TYPE_MAT2: ok=(ident=="x" || ident=="y"); member_type=TYPE_VEC2; break;
|
|
case TYPE_MAT3: ok=(ident=="x" || ident=="y" || ident=="z" ); member_type=TYPE_VEC3; break;
|
|
case TYPE_MAT4: ok=(ident=="x" || ident=="y" || ident=="z" || ident=="w"); member_type=TYPE_VEC4; break;
|
|
default: {}
|
|
}
|
|
|
|
if (!ok) {
|
|
|
|
parser.set_error("Invalid member for expression: ."+ident);
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
|
|
MemberNode *mn = parser.create_node<MemberNode>(p_parent);
|
|
mn->basetype=dt;
|
|
mn->datatype=member_type;
|
|
mn->name=ident;
|
|
mn->owner=expr;
|
|
expr=mn;
|
|
|
|
parser.advance(2);
|
|
//todo
|
|
//member (period) has priority over any operator
|
|
//creates a subindexing expression in place
|
|
|
|
|
|
} else if (parser.get_next_token_type()==TK_BRACKET_OPEN) {
|
|
//todo
|
|
//subindexing has priority over any operator
|
|
//creates a subindexing expression in place
|
|
|
|
|
|
} /*else if (parser.get_next_token_type()==TK_OP_PLUS_PLUS || parser.get_next_token_type()==TK_OP_MINUS_MINUS) {
|
|
//todo
|
|
//inc/dec operators have priority over any operator
|
|
//creates a subindexing expression in place
|
|
//return OK; //wtfs
|
|
|
|
} */
|
|
|
|
Expression e;
|
|
e.is_op=false;
|
|
e.node=expr;
|
|
expression.push_back(e);
|
|
|
|
|
|
if (is_token_operator(parser.get_next_token_type())) {
|
|
|
|
Expression o;
|
|
o.is_op=true;
|
|
o.op=parser.get_next_token_type();
|
|
expression.push_back(o);
|
|
parser.advance();
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/* Reduce the set set of expressions and place them in an operator tree, respecting precedence */
|
|
|
|
while(expression.size()>1) {
|
|
|
|
int next_op=-1;
|
|
int min_priority=0xFFFFF;
|
|
bool is_unary=false;
|
|
|
|
for(int i=0;i<expression.size();i++) {
|
|
|
|
if (!expression[i].is_op) {
|
|
|
|
continue;
|
|
}
|
|
|
|
bool unary=false;
|
|
|
|
int priority;
|
|
switch(expression[i].op) {
|
|
|
|
case TK_OP_NOT: priority=0; unary=true; break;
|
|
case TK_OP_NEG: priority=0; unary=true; break;
|
|
|
|
case TK_OP_MUL: priority=1; break;
|
|
case TK_OP_DIV: priority=1; break;
|
|
|
|
case TK_OP_ADD: priority=2; break;
|
|
case TK_OP_SUB: priority=2; break;
|
|
|
|
// shift left/right =2
|
|
|
|
case TK_OP_LESS: priority=4; break;
|
|
case TK_OP_LESS_EQUAL: priority=4; break;
|
|
case TK_OP_GREATER: priority=4; break;
|
|
case TK_OP_GREATER_EQUAL: priority=4; break;
|
|
|
|
case TK_OP_EQUAL: priority=5; break;
|
|
case TK_OP_NOT_EQUAL: priority=5; break;
|
|
|
|
//bit and =5
|
|
//bit xor =6
|
|
//bit or=7
|
|
|
|
case TK_OP_AND: priority=8; break;
|
|
case TK_OP_OR: priority=9; break;
|
|
|
|
// ?: = 10
|
|
|
|
case TK_OP_ASSIGN_ADD: priority=11; break;
|
|
case TK_OP_ASSIGN_SUB: priority=11; break;
|
|
case TK_OP_ASSIGN_MUL: priority=11; break;
|
|
case TK_OP_ASSIGN_DIV: priority=11; break;
|
|
case TK_OP_ASSIGN: priority=11; break;
|
|
|
|
default: ERR_FAIL_V(ERR_BUG); //unexpected operator
|
|
|
|
}
|
|
|
|
if (priority<min_priority) {
|
|
// < is used for left to right (default)
|
|
// <= is used for right to left
|
|
next_op=i;
|
|
min_priority=priority;
|
|
is_unary=unary;
|
|
}
|
|
|
|
}
|
|
|
|
ERR_FAIL_COND_V(next_op==-1,ERR_BUG);
|
|
|
|
// OK! create operator..
|
|
// OK! create operator..
|
|
if (is_unary) {
|
|
|
|
int expr_pos=next_op;
|
|
while(expression[expr_pos].is_op) {
|
|
|
|
expr_pos++;
|
|
if (expr_pos==expression.size()) {
|
|
//can happen..
|
|
parser.set_error("Unexpected end of expression..");
|
|
return ERR_BUG;
|
|
}
|
|
}
|
|
|
|
//consecutively do unary opeators
|
|
for(int i=expr_pos-1;i>=next_op;i--) {
|
|
|
|
OperatorNode *op = parser.create_node<OperatorNode>(p_parent);
|
|
op->op=get_token_operator(expression[i].op);
|
|
op->arguments.push_back(expression[i+1].node);
|
|
|
|
expression[i].is_op=false;
|
|
expression[i].node=validate_operator(parser,op);
|
|
if (!expression[i].node) {
|
|
|
|
String at;
|
|
for(int i=0;i<op->arguments.size();i++) {
|
|
if (i>0)
|
|
at+=" and ";
|
|
at+=get_datatype_name(compute_node_type(op->arguments[i]));
|
|
|
|
}
|
|
parser.set_error("Invalid argument to unary operator "+String(token_names[op->op])+": "+at);
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
expression.remove(i+1);
|
|
}
|
|
} else {
|
|
|
|
if (next_op <1 || next_op>=(expression.size()-1)) {
|
|
parser.set_error("Parser bug..");
|
|
ERR_FAIL_V(ERR_BUG);
|
|
}
|
|
|
|
OperatorNode *op = parser.create_node<OperatorNode>(p_parent);
|
|
op->op=get_token_operator(expression[next_op].op);
|
|
|
|
if (expression[next_op-1].is_op) {
|
|
|
|
parser.set_error("Parser bug..");
|
|
ERR_FAIL_V(ERR_BUG);
|
|
}
|
|
|
|
if (expression[next_op+1].is_op) {
|
|
// this is not invalid and can really appear
|
|
// but it becomes invalid anyway because no binary op
|
|
// can be followed by an unary op in a valid combination,
|
|
// due to how precedence works, unaries will always dissapear first
|
|
|
|
parser.set_error("Parser bug..");
|
|
|
|
}
|
|
|
|
|
|
op->arguments.push_back(expression[next_op-1].node); //expression goes as left
|
|
op->arguments.push_back(expression[next_op+1].node); //next expression goes as right
|
|
|
|
//replace all 3 nodes by this operator and make it an expression
|
|
expression[next_op-1].node=validate_operator(parser,op);
|
|
if (!expression[next_op-1].node) {
|
|
|
|
String at;
|
|
for(int i=0;i<op->arguments.size();i++) {
|
|
if (i>0)
|
|
at+=" and ";
|
|
at+=get_datatype_name(compute_node_type(op->arguments[i]));
|
|
|
|
}
|
|
static const char *op_names[OP_MAX]={"=","+","-","*","/","+=","-=","*=","/=","-","!","==","!=","<=",">=","<",">","||","&&","call","()"};
|
|
|
|
parser.set_error("Invalid arguments to operator "+String(op_names[op->op])+": "+at);
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
expression.remove(next_op);
|
|
expression.remove(next_op);
|
|
}
|
|
|
|
#if 0
|
|
OperatorNode *op = parser.create_node<OperatorNode>(p_parent);
|
|
op->op=get_token_operator(operators[next_op]);
|
|
|
|
op->arguments.push_back(expressions[next_op]); //expression goes as left
|
|
op->arguments.push_back(expressions[next_op+1]); //next expression goes as right
|
|
|
|
expressions[next_op]=validate_operator(parser,op);
|
|
if (!expressions[next_op]) {
|
|
|
|
String at;
|
|
for(int i=0;i<op->arguments.size();i++) {
|
|
if (i>0)
|
|
at+=" and ";
|
|
at+=get_datatype_name(compute_node_type(op->arguments[i]));
|
|
|
|
}
|
|
parser.set_error("Invalid arguments to operator "+String(token_names[operators[next_op]])+": "+at);
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
|
|
|
|
expressions.remove(next_op+1);
|
|
operators.remove(next_op);
|
|
#endif
|
|
|
|
}
|
|
|
|
*r_expr=expression[0].node;
|
|
|
|
return OK;
|
|
|
|
/*
|
|
TokenType token_type=parser.get_next_token_type();
|
|
OperatorNode *op = parser.create_node<OperatorNode>(p_parent);
|
|
op->op=get_token_operator(parser.get_next_token_type());
|
|
|
|
op->arguments.push_back(*r_expr); //expression goes as left
|
|
parser.advance();
|
|
Node *right_expr=NULL;
|
|
Error err = parse_expression(parser,p_parent,&right_expr);
|
|
if (err)
|
|
return err;
|
|
op->arguments.push_back(right_expr);
|
|
|
|
if (!validate_operator(op)) {
|
|
|
|
parser.set_error("Invalid arguments to operator "+String(token_names[token_type]));
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
|
|
*/
|
|
|
|
}
|
|
|
|
Error ShaderLanguage::parse_variable_declaration(Parser& parser,BlockNode *p_block) {
|
|
|
|
bool uniform = parser.get_next_token(-1).type==TK_UNIFORM;
|
|
|
|
DataType type=get_token_datatype(parser.get_next_token_type(0));
|
|
bool iscolor = parser.get_next_token_type(0)==TK_TYPE_COLOR;
|
|
|
|
if (type==TYPE_VOID) {
|
|
|
|
parser.set_error("Cannot Declare a 'void' Variable");
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
|
|
if (type==TYPE_TEXTURE && !uniform) {
|
|
|
|
parser.set_error("Cannot Declare a Non-Uniform Texture");
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
if (type==TYPE_CUBEMAP && !uniform) {
|
|
|
|
parser.set_error("Cannot Declare a Non-Uniform Cubemap");
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
|
|
|
|
parser.advance();
|
|
int found=0;
|
|
|
|
while(true) {
|
|
|
|
|
|
if (found && parser.get_next_token_type()!=TK_COMMA) {
|
|
break;
|
|
}
|
|
|
|
if (parser.get_next_token_type()!=TK_INDENTIFIER) {
|
|
|
|
parser.set_error("Identifier Expected");
|
|
return ERR_PARSE_ERROR;
|
|
|
|
}
|
|
|
|
StringName name = parser.get_next_token().text;
|
|
|
|
if (test_existing_identifier(p_block,name)) {
|
|
parser.set_error("Duplicate Identifier (existing variable/function): "+name);
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
|
|
found=true;
|
|
|
|
parser.advance();
|
|
//see if declaration has an initializer
|
|
if (parser.get_next_token_type()==TK_OP_ASSIGN) {
|
|
parser.advance();
|
|
OperatorNode * op = parser.create_node<OperatorNode>(p_block);
|
|
VariableNode * var = parser.create_node<VariableNode>(op);
|
|
var->name=name;
|
|
var->datatype_cache=type;
|
|
var->uniform=uniform;
|
|
Node *expr;
|
|
Error err = parse_expression(parser,p_block,&expr);
|
|
|
|
if (err)
|
|
return err;
|
|
|
|
if (var->uniform) {
|
|
|
|
if (expr->type!=Node::TYPE_CONSTANT) {
|
|
|
|
parser.set_error("Uniform can only be initialized to a constant.");
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
|
|
Uniform u;
|
|
u.order=parser.program->uniforms.size();
|
|
u.type=type;
|
|
u.default_value=static_cast<ConstantNode*>(expr)->value;
|
|
if (iscolor && u.default_value.get_type()==Variant::PLANE) {
|
|
Color c;
|
|
Plane p = u.default_value;
|
|
c=Color(p.normal.x,p.normal.y,p.normal.z,p.d);
|
|
u.default_value=c;
|
|
}
|
|
parser.program->uniforms[var->name]=u;
|
|
} else {
|
|
op->op=OP_ASSIGN;
|
|
op->arguments.push_back(var);
|
|
op->arguments.push_back(expr);
|
|
Node *n=validate_operator(parser,op);
|
|
if (!n) {
|
|
parser.set_error("Invalid initializer for variable: "+name);
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
p_block->statements.push_back(n);
|
|
}
|
|
|
|
} else {
|
|
//initialize it EMPTY
|
|
|
|
OperatorNode * op = parser.create_node<OperatorNode>(p_block);
|
|
VariableNode * var = parser.create_node<VariableNode>(op);
|
|
ConstantNode * con = parser.create_node<ConstantNode>(op);
|
|
|
|
var->name=name;
|
|
var->datatype_cache=type;
|
|
var->uniform=uniform;
|
|
con->datatype=type;
|
|
|
|
switch(type) {
|
|
case TYPE_BOOL: con->value=false; break;
|
|
case TYPE_FLOAT: con->value=0.0; break;
|
|
case TYPE_VEC2: con->value=Vector2(); break;
|
|
case TYPE_VEC3: con->value=Vector3(); break;
|
|
case TYPE_VEC4: con->value=iscolor?Variant(Color()):Variant(Plane()); break;
|
|
case TYPE_MAT2: con->value=Matrix32(); break;
|
|
case TYPE_MAT3: con->value=Matrix3(); break;
|
|
case TYPE_MAT4: con->value=Transform(); break;
|
|
case TYPE_TEXTURE:
|
|
case TYPE_CUBEMAP: con->value=RID(); break;
|
|
default: {}
|
|
}
|
|
|
|
if (uniform) {
|
|
Uniform u;
|
|
u.type=type;
|
|
u.default_value=con->value;
|
|
u.order=parser.program->uniforms.size();
|
|
parser.program->uniforms[var->name]=u;
|
|
|
|
} else {
|
|
op->op=OP_ASSIGN;
|
|
op->arguments.push_back(var);
|
|
op->arguments.push_back(con);
|
|
p_block->statements.push_back(op);
|
|
}
|
|
|
|
}
|
|
|
|
if (!uniform)
|
|
p_block->variables[name]=type;
|
|
|
|
}
|
|
|
|
if (parser.get_next_token_type()!=TK_SEMICOLON) {
|
|
parser.set_error("Expected ';'");
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
|
|
|
|
return OK;
|
|
|
|
}
|
|
|
|
Error ShaderLanguage::parse_flow_if(Parser& parser,Node *p_parent,Node **r_statement) {
|
|
|
|
ControlFlowNode *cf = parser.create_node<ControlFlowNode>(p_parent);
|
|
|
|
cf->flow_op=FLOW_OP_IF;
|
|
|
|
parser.advance();
|
|
|
|
if (parser.get_next_token_type()!=TK_PARENTHESIS_OPEN) {
|
|
parser.set_error("Expected '(' after 'if'");
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
parser.advance();
|
|
|
|
Node *expression=NULL;
|
|
Error err = parse_expression(parser,cf,&expression);
|
|
if (err)
|
|
return err;
|
|
|
|
if (compute_node_type(expression)!=TYPE_BOOL) {
|
|
|
|
parser.set_error("Expression for 'if' is not boolean");
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
|
|
cf->statements.push_back(expression);
|
|
|
|
if (parser.get_next_token_type()!=TK_PARENTHESIS_CLOSE) {
|
|
parser.set_error("Expected ')' after expression");
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
|
|
parser.advance();
|
|
|
|
if (parser.get_next_token_type()!=TK_CURLY_BRACKET_OPEN) {
|
|
parser.set_error("Expected statement block after 'if()'");
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
|
|
Node *substatement=NULL;
|
|
err = parse_statement(parser,cf,&substatement);
|
|
if (err)
|
|
return err;
|
|
|
|
cf->statements.push_back(substatement);
|
|
|
|
if (parser.get_next_token_type()==TK_CF_ELSE) {
|
|
|
|
parser.advance();
|
|
|
|
if (parser.get_next_token_type()!=TK_CURLY_BRACKET_OPEN) {
|
|
parser.set_error("Expected statement block after 'else'");
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
|
|
substatement=NULL;
|
|
err = parse_statement(parser,cf,&substatement);
|
|
if (err)
|
|
return err;
|
|
|
|
cf->statements.push_back(substatement);
|
|
}
|
|
|
|
|
|
|
|
*r_statement=cf;
|
|
|
|
return OK;
|
|
}
|
|
|
|
Error ShaderLanguage::parse_flow_return(Parser& parser,Node *p_parent,Node **r_statement) {
|
|
|
|
|
|
FunctionNode *function=NULL;
|
|
|
|
Node *parent=p_parent;
|
|
|
|
while(parent) {
|
|
|
|
if (parent->type==Node::TYPE_FUNCTION) {
|
|
|
|
function=(FunctionNode*)parent;
|
|
break;
|
|
}
|
|
|
|
parent=parent->parent;
|
|
}
|
|
|
|
if (!function) {
|
|
|
|
parser.set_error("'return' must be inside a function");
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
|
|
ControlFlowNode *cf = parser.create_node<ControlFlowNode>(p_parent);
|
|
|
|
cf->flow_op=FLOW_OP_RETURN;
|
|
|
|
parser.advance();
|
|
|
|
if (function->return_type!=TYPE_VOID) {
|
|
// should expect a return expression.
|
|
|
|
Node *expr=NULL;
|
|
Error err = parse_expression(parser,cf,&expr);
|
|
if (err)
|
|
return err;
|
|
|
|
if (compute_node_type(expr)!=function->return_type) {
|
|
parser.set_error("Invalid type for 'return' expression");
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
cf->statements.push_back(expr);
|
|
}
|
|
|
|
*r_statement=cf;
|
|
|
|
|
|
if (parser.get_next_token_type()!=TK_SEMICOLON) {
|
|
parser.set_error("Expected ';'");
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
Error ShaderLanguage::parse_statement(Parser& parser,Node *p_parent,Node **r_statement) {
|
|
|
|
*r_statement=NULL;
|
|
|
|
TokenType token_type = parser.get_next_token_type();
|
|
|
|
if (token_type==TK_CURLY_BRACKET_OPEN) {
|
|
//sub-block
|
|
parser.advance();
|
|
BlockNode *block = parser.create_node<BlockNode>(p_parent);
|
|
|
|
*r_statement=block;
|
|
return parse_block(parser,block);
|
|
} else if (token_type==TK_SEMICOLON) {
|
|
// empty ;
|
|
parser.advance();
|
|
return OK;
|
|
} else if (token_type==TK_CF_IF) {
|
|
return parse_flow_if(parser,p_parent,r_statement);
|
|
|
|
} else if (token_type==TK_CF_RETURN) {
|
|
return parse_flow_return(parser,p_parent,r_statement);
|
|
} else {
|
|
Error err=parse_expression(parser,p_parent,r_statement);
|
|
|
|
if (err)
|
|
return err;
|
|
|
|
if (parser.get_next_token_type()!=TK_SEMICOLON) {
|
|
parser.set_error("Expected ';'");
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
Error ShaderLanguage::parse_block(Parser& parser,BlockNode *p_block) {
|
|
|
|
while(true) {
|
|
|
|
if (parser.is_at_end()) {
|
|
if (p_block->parent->type!=Node::TYPE_PROGRAM) {
|
|
parser.set_error("Unexpected End of File");
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
return OK; //bye
|
|
}
|
|
|
|
TokenType token_type = parser.get_next_token_type();
|
|
|
|
if (token_type==TK_CURLY_BRACKET_CLOSE) {
|
|
if (p_block->parent->type==Node::TYPE_PROGRAM) {
|
|
parser.set_error("Unexpected '}'");
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
parser.advance();
|
|
return OK; // exit block
|
|
|
|
} else if (token_type==TK_UNIFORM) {
|
|
|
|
if (p_block!=parser.program->body) {
|
|
|
|
parser.set_error("Uniform only allowed in main program body.");
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
parser.advance();
|
|
Error err=parse_variable_declaration(parser,p_block);
|
|
if (err)
|
|
return err;
|
|
|
|
} else if (is_token_datatype(token_type)) {
|
|
|
|
Error err=OK;
|
|
if (parser_is_at_function(parser))
|
|
err = parse_function(parser,p_block);
|
|
else {
|
|
err = parse_variable_declaration(parser,p_block);
|
|
}
|
|
|
|
if (err)
|
|
return err;
|
|
|
|
} else {
|
|
// must be a statement
|
|
Node *statement=NULL;
|
|
|
|
Error err = parse_statement(parser,p_block,&statement);
|
|
if (err)
|
|
return err;
|
|
if (statement) {
|
|
p_block->statements.push_back(statement);
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
|
|
|
|
Error ShaderLanguage::parse(const Vector<Token>& p_tokens,ShaderType p_type,CompileFunc p_compile_func,void *p_userdata,String *r_error,int *r_err_line,int *r_err_column) {
|
|
|
|
|
|
Parser parser(p_tokens);
|
|
parser.program = parser.create_node<ProgramNode>(NULL);
|
|
parser.program->body = parser.create_node<BlockNode>(parser.program);
|
|
|
|
|
|
//add builtins
|
|
switch(p_type) {
|
|
case SHADER_MATERIAL_VERTEX: {
|
|
int idx=0;
|
|
while (vertex_builtins_defs[idx].name) {
|
|
parser.program->builtin_variables[vertex_builtins_defs[idx].name]=vertex_builtins_defs[idx].type;
|
|
idx++;
|
|
}
|
|
} break;
|
|
case SHADER_MATERIAL_FRAGMENT: {
|
|
int idx=0;
|
|
while (fragment_builtins_defs[idx].name) {
|
|
parser.program->builtin_variables[fragment_builtins_defs[idx].name]=fragment_builtins_defs[idx].type;
|
|
idx++;
|
|
}
|
|
} break;
|
|
case SHADER_MATERIAL_LIGHT: {
|
|
int idx=0;
|
|
while (light_builtins_defs[idx].name) {
|
|
parser.program->builtin_variables[light_builtins_defs[idx].name]=light_builtins_defs[idx].type;
|
|
idx++;
|
|
}
|
|
} break;
|
|
case SHADER_CANVAS_ITEM_VERTEX: {
|
|
int idx=0;
|
|
while (ci_vertex_builtins_defs[idx].name) {
|
|
parser.program->builtin_variables[ci_vertex_builtins_defs[idx].name]=ci_vertex_builtins_defs[idx].type;
|
|
idx++;
|
|
}
|
|
} break;
|
|
case SHADER_CANVAS_ITEM_FRAGMENT: {
|
|
int idx=0;
|
|
while (ci_fragment_builtins_defs[idx].name) {
|
|
parser.program->builtin_variables[ci_fragment_builtins_defs[idx].name]=ci_fragment_builtins_defs[idx].type;
|
|
idx++;
|
|
}
|
|
} break;
|
|
case SHADER_CANVAS_ITEM_LIGHT: {
|
|
int idx=0;
|
|
while (ci_light_builtins_defs[idx].name) {
|
|
parser.program->builtin_variables[ci_light_builtins_defs[idx].name]=ci_light_builtins_defs[idx].type;
|
|
idx++;
|
|
}
|
|
} break;
|
|
case SHADER_POST_PROCESS: {
|
|
int idx=0;
|
|
while (postprocess_fragment_builtins_defs[idx].name) {
|
|
parser.program->builtin_variables[postprocess_fragment_builtins_defs[idx].name]=postprocess_fragment_builtins_defs[idx].type;
|
|
idx++;
|
|
}
|
|
} break;
|
|
}
|
|
|
|
Error err = parse_block(parser,parser.program->body);
|
|
if (err) {
|
|
parser.get_error(r_error,r_err_line,r_err_column);
|
|
return err;
|
|
}
|
|
|
|
if (p_compile_func) {
|
|
err = p_compile_func(p_userdata,parser.program);
|
|
}
|
|
|
|
//clean up nodes created
|
|
while(parser.nodegc.size()) {
|
|
|
|
memdelete( parser.nodegc.front()->get() );
|
|
parser.nodegc.pop_front();
|
|
}
|
|
return err;
|
|
}
|
|
|
|
Error ShaderLanguage::compile(const String& p_code,ShaderType p_type,CompileFunc p_compile_func,void *p_userdata,String *r_error,int *r_err_line,int *r_err_column) {
|
|
|
|
*r_error="";
|
|
*r_err_line=0;
|
|
*r_err_column=0;
|
|
Vector<Token> tokens;
|
|
|
|
Error err = tokenize(p_code,&tokens,r_error,r_err_line,r_err_column);
|
|
if (err!=OK) {
|
|
print_line("tokenizer error!");
|
|
}
|
|
|
|
if (err!=OK) {
|
|
return err;
|
|
}
|
|
err = parse(tokens,p_type,p_compile_func,p_userdata,r_error,r_err_line,r_err_column);
|
|
if (err!=OK) {
|
|
return err;
|
|
}
|
|
return OK;
|
|
}
|
|
|
|
|
|
void ShaderLanguage::get_keyword_list(ShaderType p_type, List<String> *p_keywords) {
|
|
|
|
int idx=0;
|
|
|
|
p_keywords->push_back("uniform");
|
|
p_keywords->push_back("texture");
|
|
p_keywords->push_back("cubemap");
|
|
p_keywords->push_back("color");
|
|
p_keywords->push_back("if");
|
|
p_keywords->push_back("else");
|
|
|
|
while(intrinsic_func_defs[idx].name) {
|
|
|
|
p_keywords->push_back(intrinsic_func_defs[idx].name);
|
|
idx++;
|
|
}
|
|
|
|
|
|
switch(p_type) {
|
|
case SHADER_MATERIAL_VERTEX: {
|
|
idx=0;
|
|
while (vertex_builtins_defs[idx].name) {
|
|
p_keywords->push_back(vertex_builtins_defs[idx].name);
|
|
idx++;
|
|
}
|
|
} break;
|
|
case SHADER_MATERIAL_FRAGMENT: {
|
|
idx=0;
|
|
while (fragment_builtins_defs[idx].name) {
|
|
p_keywords->push_back(fragment_builtins_defs[idx].name);
|
|
idx++;
|
|
}
|
|
} break;
|
|
case SHADER_MATERIAL_LIGHT: {
|
|
idx=0;
|
|
while (light_builtins_defs[idx].name) {
|
|
p_keywords->push_back(light_builtins_defs[idx].name);
|
|
idx++;
|
|
}
|
|
} break;
|
|
case SHADER_CANVAS_ITEM_VERTEX: {
|
|
idx=0;
|
|
while (ci_vertex_builtins_defs[idx].name) {
|
|
p_keywords->push_back(ci_vertex_builtins_defs[idx].name);
|
|
idx++;
|
|
}
|
|
} break;
|
|
case SHADER_CANVAS_ITEM_FRAGMENT: {
|
|
idx=0;
|
|
while (ci_fragment_builtins_defs[idx].name) {
|
|
p_keywords->push_back(ci_fragment_builtins_defs[idx].name);
|
|
idx++;
|
|
}
|
|
} break;
|
|
case SHADER_CANVAS_ITEM_LIGHT: {
|
|
idx=0;
|
|
while (ci_light_builtins_defs[idx].name) {
|
|
p_keywords->push_back(ci_light_builtins_defs[idx].name);
|
|
idx++;
|
|
}
|
|
} break;
|
|
|
|
case SHADER_POST_PROCESS: {
|
|
idx=0;
|
|
while (postprocess_fragment_builtins_defs[idx].name) {
|
|
p_keywords->push_back(postprocess_fragment_builtins_defs[idx].name);
|
|
idx++;
|
|
}
|
|
} break;
|
|
|
|
}
|
|
|
|
}
|