mirror of
https://github.com/DarkPlacesEngine/gmqcc.git
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202 lines
10 KiB
C
202 lines
10 KiB
C
/*
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* Copyright (C) 2012
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* Dale Weiler
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is furnished to do
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* so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* 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, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "gmqcc.h"
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typedef struct {
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uint32_t offset; /* Offset in file of where data begins */
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uint32_t length; /* Length of section (how many of) */
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} prog_section;
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typedef struct {
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uint32_t version; /* Program version (6) */
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uint32_t crc16; /* What is this? */
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prog_section statements; /* prog_section_statement */
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prog_section defs; /* prog_section_def */
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prog_section fields; /* prog_section_field */
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prog_section functions; /* prog_section_function */
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prog_section strings; /* What is this? */
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prog_section globals; /* What is this? */
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uint32_t entfield; /* Number of entity fields */
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} prog_header;
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/*
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* The macros below expand to a typesafe vector implementation, which
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* can be viewed in gmqcc.h
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*
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* code_statements_data -- raw prog_section_statement array
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* code_statements_elements -- number of elements
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* code_statements_allocated -- size of the array allocated
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* code_statements_add(T) -- add element (returns -1 on error)
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*
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* code_vars_data -- raw prog_section_var array
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* code_vars_elements -- number of elements
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* code_vars_allocated -- size of the array allocated
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* code_vars_add(T) -- add element (returns -1 on error)
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*
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* code_fields_data -- raw prog_section_field array
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* code_fields_elements -- number of elements
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* code_fields_allocated -- size of the array allocated
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* code_fields_add(T) -- add element (returns -1 on error)
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*
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* code_functions_data -- raw prog_section_function array
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* code_functions_elements -- number of elements
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* code_functions_allocated -- size of the array allocated
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* code_functions_add(T) -- add element (returns -1 on error)
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*
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* code_globals_data -- raw prog_section_def array
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* code_globals_elements -- number of elements
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* code_globals_allocated -- size of the array allocated
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* code_globals_add(T) -- add element (returns -1 on error)
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*
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* code_chars_data -- raw char* array
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* code_chars_elements -- number of elements
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* code_chars_allocated -- size of the array allocated
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* code_chars_add(T) -- add element (returns -1 on error)
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*/
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VECTOR_MAKE(prog_section_statement, code_statements);
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VECTOR_MAKE(prog_section_def, code_defs );
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VECTOR_MAKE(prog_section_field, code_fields );
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VECTOR_MAKE(prog_section_function, code_functions );
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VECTOR_MAKE(int, code_globals );
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VECTOR_MAKE(char, code_chars );
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int code_strings_add(const char *src) {
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size_t size = strlen(src);
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size_t iter = 0;
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while (iter < size)
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code_chars_add(src[iter++]);
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code_chars_add('\0');
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return code_chars_elements;
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}
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void code_init() {
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/*
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* The way progs.dat is suppose to work is odd, there needs to be
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* some null (empty) statements, functions, and 28 globals
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*/
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prog_section_function empty_function = {0,0,0,0,0,0,0,{0}};
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prog_section_statement empty_statement = {0,{0},{0},{0}};
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int i;
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for(i = 0; i < 28; i++)
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code_globals_add(0);
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code_chars_add ('\0');
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code_functions_add (empty_function);
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code_statements_add(empty_statement);
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}
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void code_test() {
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code_strings_add("m_init");
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code_strings_add("print");
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code_strings_add("hello world\n");
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code_strings_add("m_keydown");
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code_strings_add("m_draw");
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code_strings_add("m_toggle");
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code_strings_add("m_shutdown");
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code_globals_add(1); /* m_init */
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code_globals_add(2); /* print */
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code_globals_add(14); /* hello world in string table */
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/* now the defs */
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code_defs_add((prog_section_def){.type=TYPE_VOID, .offset=28/*globals[28]*/, .name=1 }); /* m_init */
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code_defs_add((prog_section_def){.type=TYPE_FUNCTION,.offset=29/*globals[29]*/, .name=8 }); /* print */
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code_defs_add((prog_section_def){.type=TYPE_STRING, .offset=30/*globals[30]*/, .name=14}); /*hello_world*/
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code_functions_add((prog_section_function){1, 0, 0, 0, .name=1, 0, 0, {0}}); /* m_init */
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code_functions_add((prog_section_function){-4, 0, 0, 0, .name=8, 0, 0, {0}}); /* print */
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code_functions_add((prog_section_function){0, 0, 0, 0, .name=14+13, 0,0, {0}}); /* m_keydown */
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code_functions_add((prog_section_function){0, 0, 0, 0, .name=14+13+10, 0,0, {0}});
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code_functions_add((prog_section_function){0, 0, 0, 0, .name=14+13+10+7, 0,0, {0}});
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code_functions_add((prog_section_function){0, 0, 0, 0, .name=14+13+10+7+9, 0,0, {0}});
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code_statements_add((prog_section_statement){INSTR_STORE_F, {30}/*30 is hello_world */, {OFS_PARM0}, {0}});
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code_statements_add((prog_section_statement){INSTR_CALL1, {29}/*29 is print */, {0}, {0}});
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code_statements_add((prog_section_statement){INSTR_RETURN, {0}, {0}, {0}});
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}
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void code_write() {
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prog_header code_header={0};
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code_header.version = 6;
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code_header.crc16 = 0; /* TODO: */
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code_header.statements = (prog_section){sizeof(prog_header), code_statements_elements };
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code_header.defs = (prog_section){code_header.statements.offset + sizeof(prog_section_statement)*code_statements_elements, code_defs_elements };
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code_header.fields = (prog_section){code_header.defs.offset + sizeof(prog_section_def) *code_defs_elements, code_fields_elements };
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code_header.functions = (prog_section){code_header.fields.offset + sizeof(prog_section_field) *code_fields_elements, code_functions_elements };
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code_header.globals = (prog_section){code_header.functions.offset + sizeof(prog_section_function) *code_functions_elements, code_globals_elements };
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code_header.strings = (prog_section){code_header.globals.offset + sizeof(int) *code_globals_elements, code_chars_elements };
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code_header.entfield = 0; /* TODO: */
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/* ensure all data is in LE format */
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util_endianswap(&code_header, sizeof(prog_header), 1);
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util_endianswap(code_statements_data, sizeof(prog_section_statement), code_statements_elements);
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util_endianswap(code_defs_data, sizeof(prog_section_def), code_defs_elements);
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util_endianswap(code_fields_data, sizeof(prog_section_field), code_fields_elements);
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util_endianswap(code_functions_data, sizeof(prog_section_function), code_functions_elements);
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util_endianswap(code_globals_data, sizeof(int), code_globals_elements);
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FILE *fp = fopen("program.dat", "wb");
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fwrite(&code_header, 1, sizeof(prog_header), fp);
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fwrite(code_statements_data, 1, sizeof(prog_section_statement)*code_statements_elements, fp);
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fwrite(code_defs_data, 1, sizeof(prog_section_def) *code_defs_elements, fp);
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fwrite(code_fields_data, 1, sizeof(prog_section_field) *code_fields_elements, fp);
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fwrite(code_functions_data, 1, sizeof(prog_section_function) *code_functions_elements, fp);
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fwrite(code_globals_data, 1, sizeof(int) *code_globals_elements, fp);
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fwrite(code_chars_data, 1, 1 *code_chars_elements, fp);
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util_debug("GEN","header:\n");
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util_debug("GEN"," version: = %d\n", code_header.version );
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util_debug("GEN"," crc16: = %d\n", code_header.crc16 );
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util_debug("GEN"," entfield: = %d\n", code_header.entfield);
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util_debug("GEN"," statements = {.offset = % 8d, .length = % 8d}\n", code_header.statements.offset, code_header.statements.length);
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util_debug("GEN"," defs = {.offset = % 8d, .length = % 8d}\n", code_header.defs .offset, code_header.defs .length);
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util_debug("GEN"," fields = {.offset = % 8d, .length = % 8d}\n", code_header.fields .offset, code_header.fields .length);
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util_debug("GEN"," functions = {.offset = % 8d, .length = % 8d}\n", code_header.functions .offset, code_header.functions .length);
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util_debug("GEN"," globals = {.offset = % 8d, .length = % 8d}\n", code_header.globals .offset, code_header.globals .length);
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util_debug("GEN"," strings = {.offset = % 8d, .length = % 8d}\n", code_header.strings .offset, code_header.strings .length);
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/* WRITE out all functions */
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util_debug("GEN", "functions:\n");
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size_t i = 0;
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for (; i < code_functions_elements; i++) {
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util_debug("GEN", " {.entry =% 5d, .firstlocal =% 5d, .locals =% 5d, .profile =% 5d, .name =% 5d, .file =% 5d, .nargs =% 5d, .argsize =%0X }\n",
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code_functions_data[i].entry,
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code_functions_data[i].firstlocal,
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code_functions_data[i].locals,
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code_functions_data[i].profile,
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code_functions_data[i].name,
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code_functions_data[i].file,
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code_functions_data[i].nargs,
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*((int32_t*)&code_functions_data[i].argsize)
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);
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}
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mem_d(code_statements_data);
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mem_d(code_defs_data);
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mem_d(code_fields_data);
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mem_d(code_functions_data);
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mem_d(code_globals_data);
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mem_d(code_chars_data);
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fclose(fp);
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}
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