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mojoshader-compiler.c
1098 lines (955 loc) · 34.9 KB
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/**
* MojoShader; generate shader programs from bytecode of compiled
* Direct3D shaders.
*
* Please see the file LICENSE.txt in the source's root directory.
*
* This file written by Ryan C. Gordon.
*/
#include <stdio.h>
#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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#include "mojoshader.h"
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#ifdef _WIN32
#define snprintf _snprintf // !!! FIXME: not a safe replacement!
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#endif
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static const char **include_paths = NULL;
static unsigned int include_path_count = 0;
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#define MOJOSHADER_DEBUG_MALLOC 0
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#if MOJOSHADER_DEBUG_MALLOC
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static void *Malloc(int len, void *d)
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{
void *ptr = malloc(len + sizeof (int));
int *store = (int *) ptr;
printf("malloc() %d bytes (%p)\n", len, ptr);
if (ptr == NULL) return NULL;
*store = len;
return (void *) (store + 1);
} // Malloc
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static void Free(void *_ptr, void *d)
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{
int *ptr = (((int *) _ptr) - 1);
int len = *ptr;
printf("free() %d bytes (%p)\n", len, ptr);
free(ptr);
} // Free
#else
#define Malloc NULL
#define Free NULL
#endif
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static void fail(const char *err)
{
printf("%s.\n", err);
exit(1);
} // fail
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static void print_unroll_attr(FILE *io, const int unroll)
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{
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// -1 means "unroll at compiler's discretion",
// -2 means user didn't specify the attribute.
switch (unroll)
{
case 0:
fprintf(io, "[loop] ");
break;
case -1:
fprintf(io, "[unroll] ");
break;
case -2:
/* no-op. */
break;
default:
assert(unroll > 0);
fprintf(io, "[unroll(%d)] ", unroll);
break;
} // case
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} // print_unroll_attr
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static void print_ast_datatype(FILE *io, const MOJOSHADER_astDataType *dt)
{
int i;
if (dt == NULL)
return;
switch (dt->type)
{
case MOJOSHADER_AST_DATATYPE_BOOL:
fprintf(io, "bool");
return;
case MOJOSHADER_AST_DATATYPE_INT:
fprintf(io, "int");
return;
case MOJOSHADER_AST_DATATYPE_UINT:
fprintf(io, "uint");
return;
case MOJOSHADER_AST_DATATYPE_FLOAT:
fprintf(io, "float");
return;
case MOJOSHADER_AST_DATATYPE_FLOAT_SNORM:
fprintf(io, "snorm float");
return;
case MOJOSHADER_AST_DATATYPE_FLOAT_UNORM:
fprintf(io, "unorm float");
return;
case MOJOSHADER_AST_DATATYPE_HALF:
fprintf(io, "half");
return;
case MOJOSHADER_AST_DATATYPE_DOUBLE:
fprintf(io, "double");
return;
case MOJOSHADER_AST_DATATYPE_STRING:
fprintf(io, "string");
return;
case MOJOSHADER_AST_DATATYPE_SAMPLER_1D:
fprintf(io, "sampler1D");
return;
case MOJOSHADER_AST_DATATYPE_SAMPLER_2D:
fprintf(io, "sampler2D");
return;
case MOJOSHADER_AST_DATATYPE_SAMPLER_3D:
fprintf(io, "sampler3D");
return;
case MOJOSHADER_AST_DATATYPE_SAMPLER_CUBE:
fprintf(io, "samplerCUBE");
return;
case MOJOSHADER_AST_DATATYPE_SAMPLER_STATE:
fprintf(io, "sampler_state");
return;
case MOJOSHADER_AST_DATATYPE_SAMPLER_COMPARISON_STATE:
fprintf(io, "SamplerComparisonState");
return;
case MOJOSHADER_AST_DATATYPE_STRUCT:
fprintf(io, "struct { ");
for (i = 0; i < dt->structure.member_count; i++)
{
print_ast_datatype(io, dt->structure.members[i].datatype);
fprintf(io, " %s; ", dt->structure.members[i].identifier);
} // for
fprintf(io, "}");
return;
case MOJOSHADER_AST_DATATYPE_ARRAY:
print_ast_datatype(io, dt->array.base);
if (dt->array.elements < 0)
fprintf(io, "[]");
else
fprintf(io, "[%d]", dt->array.elements);
return;
case MOJOSHADER_AST_DATATYPE_VECTOR:
fprintf(io, "vector<");
print_ast_datatype(io, dt->vector.base);
fprintf(io, ",%d>", dt->vector.elements);
return;
case MOJOSHADER_AST_DATATYPE_MATRIX:
fprintf(io, "matrix<");
print_ast_datatype(io, dt->matrix.base);
fprintf(io, ",%d,%d>", dt->matrix.rows, dt->matrix.columns);
return;
case MOJOSHADER_AST_DATATYPE_BUFFER:
fprintf(io, "buffer<");
print_ast_datatype(io, dt->buffer.base);
fprintf(io, ">");
return;
case MOJOSHADER_AST_DATATYPE_USER:
fprintf(io, "%s", dt->user.name);
return;
//case MOJOSHADER_AST_DATATYPE_NONE:
//case MOJOSHADER_AST_DATATYPE_FUNCTION:
default:
assert(0 && "Unexpected datatype.");
return;
} // switch
} // print_ast_datatype
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// !!! FIXME: this screws up on order of operations.
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static void print_ast(FILE *io, const int substmt, const void *_ast)
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{
const MOJOSHADER_astNode *ast = (const MOJOSHADER_astNode *) _ast;
const char *nl = substmt ? "" : "\n";
int typeint = 0;
static int indent = 0;
int isblock = 0;
int i;
// These _HAVE_ to be in the same order as MOJOSHADER_astNodeType!
static const char *binary[] =
{
",", "*", "/", "%", "+", "-", "<<", ">>", "<", ">", "<=", ">=", "==",
"!=", "&", "^", "|", "&&", "||", "=", "*=", "/=", "%=", "+=", "-=",
"<<=", ">>=", "&=", "^=", "|="
};
static const char *pre_unary[] = { "++", "--", "-", "~", "!" };
static const char *post_unary[] = { "++", "--" };
static const char *simple_stmt[] = { "", "break", "continue", "discard" };
static const char *inpmod[] = { "", "in ", "out ", "in out ", "uniform " };
static const char *fnstorage[] = { "", "inline " };
static const char *interpmod[] = {
"", " linear", " centroid", " nointerpolation",
" noperspective", " sample"
};
if (!ast) return;
typeint = (int) ast->ast.type;
#define DO_INDENT do { \
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if (!substmt) { for (i = 0; i < indent; i++) fprintf(io, " "); } \
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} while (0)
switch (ast->ast.type)
{
case MOJOSHADER_AST_OP_PREINCREMENT:
case MOJOSHADER_AST_OP_PREDECREMENT:
case MOJOSHADER_AST_OP_NEGATE:
case MOJOSHADER_AST_OP_COMPLEMENT:
case MOJOSHADER_AST_OP_NOT:
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fprintf(io, "%s", pre_unary[(typeint-MOJOSHADER_AST_OP_START_RANGE_UNARY)-1]);
print_ast(io, 0, ast->unary.operand);
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break;
case MOJOSHADER_AST_OP_POSTINCREMENT:
case MOJOSHADER_AST_OP_POSTDECREMENT:
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print_ast(io, 0, ast->unary.operand);
fprintf(io, "%s", post_unary[typeint-MOJOSHADER_AST_OP_POSTINCREMENT]);
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break;
case MOJOSHADER_AST_OP_MULTIPLY:
case MOJOSHADER_AST_OP_DIVIDE:
case MOJOSHADER_AST_OP_MODULO:
case MOJOSHADER_AST_OP_ADD:
case MOJOSHADER_AST_OP_SUBTRACT:
case MOJOSHADER_AST_OP_LSHIFT:
case MOJOSHADER_AST_OP_RSHIFT:
case MOJOSHADER_AST_OP_LESSTHAN:
case MOJOSHADER_AST_OP_GREATERTHAN:
case MOJOSHADER_AST_OP_LESSTHANOREQUAL:
case MOJOSHADER_AST_OP_GREATERTHANOREQUAL:
case MOJOSHADER_AST_OP_EQUAL:
case MOJOSHADER_AST_OP_NOTEQUAL:
case MOJOSHADER_AST_OP_BINARYAND:
case MOJOSHADER_AST_OP_BINARYXOR:
case MOJOSHADER_AST_OP_BINARYOR:
case MOJOSHADER_AST_OP_LOGICALAND:
case MOJOSHADER_AST_OP_LOGICALOR:
case MOJOSHADER_AST_OP_ASSIGN:
case MOJOSHADER_AST_OP_MULASSIGN:
case MOJOSHADER_AST_OP_DIVASSIGN:
case MOJOSHADER_AST_OP_MODASSIGN:
case MOJOSHADER_AST_OP_ADDASSIGN:
case MOJOSHADER_AST_OP_SUBASSIGN:
case MOJOSHADER_AST_OP_LSHIFTASSIGN:
case MOJOSHADER_AST_OP_RSHIFTASSIGN:
case MOJOSHADER_AST_OP_ANDASSIGN:
case MOJOSHADER_AST_OP_XORASSIGN:
case MOJOSHADER_AST_OP_ORASSIGN:
case MOJOSHADER_AST_OP_COMMA:
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print_ast(io, 0, ast->binary.left);
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if (ast->ast.type != MOJOSHADER_AST_OP_COMMA)
fprintf(io, " "); // no space before the comma.
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fprintf(io, "%s ", binary[
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(typeint - MOJOSHADER_AST_OP_START_RANGE_BINARY) - 1]);
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print_ast(io, 0, ast->binary.right);
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break;
case MOJOSHADER_AST_OP_DEREF_ARRAY:
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print_ast(io, 0, ast->binary.left);
fprintf(io, "[");
print_ast(io, 0, ast->binary.right);
fprintf(io, "]");
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break;
case MOJOSHADER_AST_OP_DEREF_STRUCT:
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print_ast(io, 0, ast->derefstruct.identifier);
fprintf(io, ".");
fprintf(io, "%s", ast->derefstruct.member);
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break;
case MOJOSHADER_AST_OP_CONDITIONAL:
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print_ast(io, 0, ast->ternary.left);
fprintf(io, " ? ");
print_ast(io, 0, ast->ternary.center);
fprintf(io, " : ");
print_ast(io, 0, ast->ternary.right);
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break;
case MOJOSHADER_AST_OP_IDENTIFIER:
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fprintf(io, "%s", ast->identifier.identifier);
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break;
case MOJOSHADER_AST_OP_INT_LITERAL:
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fprintf(io, "%d", ast->intliteral.value);
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break;
case MOJOSHADER_AST_OP_FLOAT_LITERAL:
{
const float f = ast->floatliteral.value;
const long long flr = (long long) f;
if (((float) flr) == f)
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fprintf(io, "%lld.0", flr);
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else
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fprintf(io, "%.16g", f);
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break;
} // case
case MOJOSHADER_AST_OP_STRING_LITERAL:
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fprintf(io, "\"%s\"", ast->stringliteral.string);
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break;
case MOJOSHADER_AST_OP_BOOLEAN_LITERAL:
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fprintf(io, "%s", ast->boolliteral.value ? "true" : "false");
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break;
case MOJOSHADER_AST_ARGUMENTS:
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print_ast(io, 0, ast->arguments.argument);
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if (ast->arguments.next != NULL)
{
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fprintf(io, ", ");
print_ast(io, 0, ast->arguments.next);
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} // if
break;
case MOJOSHADER_AST_OP_CALLFUNC:
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print_ast(io, 0, ast->callfunc.identifier);
fprintf(io, "(");
print_ast(io, 0, ast->callfunc.args);
fprintf(io, ")");
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break;
case MOJOSHADER_AST_OP_CONSTRUCTOR:
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print_ast_datatype(io, ast->constructor.datatype);
fprintf(io, "(");
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print_ast(io, 0, ast->constructor.args);
fprintf(io, ")");
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break;
case MOJOSHADER_AST_OP_CAST:
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fprintf(io, "(");
print_ast_datatype(io, ast->cast.datatype);
fprintf(io, ") (");
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print_ast(io, 0, ast->cast.operand);
fprintf(io, ")");
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break;
case MOJOSHADER_AST_STATEMENT_EXPRESSION:
DO_INDENT;
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print_ast(io, 0, ast->exprstmt.expr); // !!! FIXME: This is named badly...
fprintf(io, ";%s", nl);
print_ast(io, 0, ast->exprstmt.next);
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break;
case MOJOSHADER_AST_STATEMENT_IF:
DO_INDENT;
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fprintf(io, "if (");
print_ast(io, 0, ast->ifstmt.expr);
fprintf(io, ")\n");
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isblock = ast->ifstmt.statement->ast.type == MOJOSHADER_AST_STATEMENT_BLOCK;
if (!isblock) indent++;
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print_ast(io, 0, ast->ifstmt.statement);
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if (!isblock) indent--;
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print_ast(io, 0, ast->ifstmt.next);
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break;
case MOJOSHADER_AST_STATEMENT_TYPEDEF:
DO_INDENT;
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print_ast(io, 1, ast->typedefstmt.type_info);
fprintf(io, "%s", nl);
print_ast(io, 0, ast->typedefstmt.next);
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break;
case MOJOSHADER_AST_STATEMENT_SWITCH:
DO_INDENT;
switch ( ast->switchstmt.attributes )
{
case MOJOSHADER_AST_SWITCHATTR_NONE: break;
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case MOJOSHADER_AST_SWITCHATTR_FLATTEN: fprintf(io, "[flatten] "); break;
case MOJOSHADER_AST_SWITCHATTR_BRANCH: fprintf(io, "[branch] "); break;
case MOJOSHADER_AST_SWITCHATTR_FORCECASE: fprintf(io, "[forcecase] "); break;
case MOJOSHADER_AST_SWITCHATTR_CALL: fprintf(io, "[call] "); break;
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} // switch
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fprintf(io, "switch (");
print_ast(io, 0, ast->switchstmt.expr);
fprintf(io, ")\n");
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DO_INDENT;
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fprintf(io, "{\n");
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indent++;
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print_ast(io, 0, ast->switchstmt.cases);
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indent--;
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fprintf(io, "\n");
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DO_INDENT;
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fprintf(io, "}\n");
print_ast(io, 0, ast->switchstmt.next);
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break;
case MOJOSHADER_AST_SWITCH_CASE:
DO_INDENT;
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fprintf(io, "case ");
print_ast(io, 0, ast->cases.expr);
fprintf(io, ":\n");
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isblock = ast->cases.statement->ast.type == MOJOSHADER_AST_STATEMENT_BLOCK;
if (!isblock) indent++;
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print_ast(io, 0, ast->cases.statement);
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if (!isblock) indent--;
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print_ast(io, 0, ast->cases.next);
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break;
case MOJOSHADER_AST_STATEMENT_STRUCT:
DO_INDENT;
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print_ast(io, 0, ast->structstmt.struct_info);
fprintf(io, ";%s%s", nl, nl); // always space these out.
print_ast(io, 0, ast->structstmt.next);
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break;
case MOJOSHADER_AST_STATEMENT_VARDECL:
DO_INDENT;
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print_ast(io, 1, ast->vardeclstmt.declaration);
fprintf(io, ";%s", nl);
print_ast(io, 0, ast->vardeclstmt.next);
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break;
case MOJOSHADER_AST_STATEMENT_BLOCK:
DO_INDENT;
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fprintf(io, "{\n");
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indent++;
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print_ast(io, 0, ast->blockstmt.statements);
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indent--;
DO_INDENT;
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fprintf(io, "}\n");
print_ast(io, 0, ast->blockstmt.next);
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break;
case MOJOSHADER_AST_STATEMENT_FOR:
DO_INDENT;
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print_unroll_attr(io, ast->forstmt.unroll);
fprintf(io, "for (");
print_ast(io, 1, ast->forstmt.var_decl);
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if (ast->forstmt.initializer != NULL)
{
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fprintf(io, " = ");
print_ast(io, 1, ast->forstmt.initializer);
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} // if
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fprintf(io, "; ");
print_ast(io, 1, ast->forstmt.looptest);
fprintf(io, "; ");
print_ast(io, 1, ast->forstmt.counter);
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fprintf(io, ")\n");
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isblock = ast->forstmt.statement->ast.type == MOJOSHADER_AST_STATEMENT_BLOCK;
if (!isblock) indent++;
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print_ast(io, 0, ast->forstmt.statement);
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if (!isblock) indent--;
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print_ast(io, 0, ast->forstmt.next);
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break;
case MOJOSHADER_AST_STATEMENT_DO:
DO_INDENT;
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print_unroll_attr(io, ast->dostmt.unroll);
fprintf(io, "do\n");
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isblock = ast->dostmt.statement->ast.type == MOJOSHADER_AST_STATEMENT_BLOCK;
if (!isblock) indent++;
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print_ast(io, 0, ast->dostmt.statement);
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if (!isblock) indent--;
DO_INDENT;
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fprintf(io, "while (");
print_ast(io, 0, ast->dostmt.expr);
fprintf(io, ");\n");
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print_ast(io, 0, ast->dostmt.next);
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break;
case MOJOSHADER_AST_STATEMENT_WHILE:
DO_INDENT;
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print_unroll_attr(io, ast->whilestmt.unroll);
fprintf(io, "while (");
print_ast(io, 0, ast->whilestmt.expr);
fprintf(io, ")\n");
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isblock = ast->whilestmt.statement->ast.type == MOJOSHADER_AST_STATEMENT_BLOCK;
if (!isblock) indent++;
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print_ast(io, 0, ast->whilestmt.statement);
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if (!isblock) indent--;
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print_ast(io, 0, ast->whilestmt.next);
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break;
case MOJOSHADER_AST_STATEMENT_RETURN:
DO_INDENT;
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fprintf(io, "return");
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if (ast->returnstmt.expr)
{
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fprintf(io, " ");
print_ast(io, 0, ast->returnstmt.expr);
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} // if
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fprintf(io, ";%s", nl);
print_ast(io, 0, ast->returnstmt.next);
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break;
case MOJOSHADER_AST_STATEMENT_EMPTY:
case MOJOSHADER_AST_STATEMENT_BREAK:
case MOJOSHADER_AST_STATEMENT_CONTINUE:
case MOJOSHADER_AST_STATEMENT_DISCARD:
DO_INDENT;
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fprintf(io, "%s;%s",
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simple_stmt[(typeint-MOJOSHADER_AST_STATEMENT_START_RANGE)-1],
nl);
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print_ast(io, 0, ast->stmt.next);
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break;
case MOJOSHADER_AST_COMPUNIT_FUNCTION:
DO_INDENT;
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print_ast(io, 0, ast->funcunit.declaration);
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if (ast->funcunit.definition == NULL)
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fprintf(io, ";%s", nl);
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else
{
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fprintf(io, "%s", nl);
print_ast(io, 0, ast->funcunit.definition);
fprintf(io, "%s", nl);
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} // else
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print_ast(io, 0, ast->funcunit.next);
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break;
case MOJOSHADER_AST_COMPUNIT_TYPEDEF:
DO_INDENT;
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print_ast(io, 0, ast->typedefunit.type_info);
fprintf(io, "%s", nl);
print_ast(io, 0, ast->typedefunit.next);
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break;
case MOJOSHADER_AST_COMPUNIT_STRUCT:
DO_INDENT;
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print_ast(io, 0, ast->structunit.struct_info);
fprintf(io, ";%s%s", nl, nl); // always space these out.
print_ast(io, 0, ast->structunit.next);
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break;
case MOJOSHADER_AST_COMPUNIT_VARIABLE:
DO_INDENT;
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print_ast(io, 1, ast->varunit.declaration);
fprintf(io, ";%s", nl);
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if (ast->varunit.next &&
ast->varunit.next->ast.type!=MOJOSHADER_AST_COMPUNIT_VARIABLE)
{
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fprintf(io, "%s", nl); // group vars together, and space out other things.
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} // if
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print_ast(io, 0, ast->varunit.next);
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break;
case MOJOSHADER_AST_SCALAR_OR_ARRAY:
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fprintf(io, "%s", ast->soa.identifier);
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if (ast->soa.isarray)
{
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fprintf(io, "[");
print_ast(io, 0, ast->soa.dimension);
fprintf(io, "]");
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} // if
break;
case MOJOSHADER_AST_TYPEDEF:
DO_INDENT;
573
574
575
fprintf(io, "typedef %s", ast->typdef.isconst ? "const " : "");
print_ast_datatype(io, ast->typdef.datatype);
fprintf(io, " ");
576
577
print_ast(io, 0, ast->typdef.details);
fprintf(io, ";%s", nl);
578
579
580
break;
case MOJOSHADER_AST_FUNCTION_PARAMS:
581
fprintf(io, "%s", inpmod[(int) ast->params.input_modifier]);
582
583
print_ast_datatype(io, ast->params.datatype);
fprintf(io, " %s", ast->params.identifier);
584
if (ast->params.semantic)
585
586
fprintf(io, " : %s", ast->params.semantic);
fprintf(io, "%s", interpmod[(int) ast->params.interpolation_modifier]);
587
588
589
if (ast->params.initializer)
{
590
591
fprintf(io, " = ");
print_ast(io, 0, ast->params.initializer);
592
593
594
595
} // if
if (ast->params.next)
{
596
597
fprintf(io, ", ");
print_ast(io, 0, ast->params.next);
598
599
600
601
} // if
break;
case MOJOSHADER_AST_FUNCTION_SIGNATURE:
602
fprintf(io, "%s", fnstorage[(int) ast->funcsig.storage_class]);
603
604
605
606
607
if (ast->funcsig.datatype)
print_ast_datatype(io, ast->funcsig.datatype);
else
fprintf(io, "void");
fprintf(io, " %s(", ast->funcsig.identifier);
608
609
print_ast(io, 0, ast->funcsig.params);
fprintf(io, ")");
610
if (ast->funcsig.semantic)
611
fprintf(io, " : %s", ast->funcsig.semantic);
612
613
614
break;
case MOJOSHADER_AST_STRUCT_DECLARATION:
615
fprintf(io, "struct %s\n", ast->structdecl.name);
616
DO_INDENT;
617
fprintf(io, "{\n");
618
indent++;
619
print_ast(io, 0, ast->structdecl.members);
620
621
indent--;
DO_INDENT;
622
fprintf(io, "}");
623
624
625
626
break;
case MOJOSHADER_AST_STRUCT_MEMBER:
DO_INDENT;
627
fprintf(io, "%s", interpmod[(int)ast->structmembers.interpolation_mod]);
628
629
print_ast_datatype(io, ast->structmembers.datatype);
fprintf(io, " ");
630
print_ast(io, 0, ast->structmembers.details);
631
if (ast->structmembers.semantic)
632
633
634
fprintf(io, " : %s", ast->structmembers.semantic);
fprintf(io, ";%s", nl);
print_ast(io, 0, ast->structmembers.next);
635
636
637
638
639
break;
case MOJOSHADER_AST_VARIABLE_DECLARATION:
DO_INDENT;
if (ast->vardecl.attributes & MOJOSHADER_AST_VARATTR_EXTERN)
640
fprintf(io, "extern ");
641
if (ast->vardecl.attributes & MOJOSHADER_AST_VARATTR_NOINTERPOLATION)
642
fprintf(io, "nointerpolation ");
643
if (ast->vardecl.attributes & MOJOSHADER_AST_VARATTR_SHARED)
644
fprintf(io, "shared");
645
if (ast->vardecl.attributes & MOJOSHADER_AST_VARATTR_STATIC)
646
fprintf(io, "static ");
647
if (ast->vardecl.attributes & MOJOSHADER_AST_VARATTR_UNIFORM)
648
fprintf(io, "uniform ");
649
if (ast->vardecl.attributes & MOJOSHADER_AST_VARATTR_VOLATILE)
650
fprintf(io, "nointerpolation ");
651
if (ast->vardecl.attributes & MOJOSHADER_AST_VARATTR_CONST)
652
fprintf(io, "const ");
653
if (ast->vardecl.attributes & MOJOSHADER_AST_VARATTR_ROWMAJOR)
654
fprintf(io, "rowmajor ");
655
if (ast->vardecl.attributes & MOJOSHADER_AST_VARATTR_COLUMNMAJOR)
656
fprintf(io, "columnmajor ");
657
658
if (ast->vardecl.datatype)
659
print_ast_datatype(io, ast->vardecl.datatype);
660
else
661
662
663
print_ast(io, 0, ast->vardecl.anonymous_datatype);
fprintf(io, " ");
print_ast(io, 0, ast->vardecl.details);
664
if (ast->vardecl.semantic)
665
fprintf(io, " : %s", ast->vardecl.semantic);
666
667
if (ast->vardecl.annotations)
{
668
669
fprintf(io, " ");
print_ast(io, 0, ast->vardecl.annotations);
670
671
672
} // if
if (ast->vardecl.initializer != NULL)
{
673
674
fprintf(io, " = ");
print_ast(io, 0, ast->vardecl.initializer);
675
} // if
676
print_ast(io, 0, ast->vardecl.lowlevel);
677
678
if (ast->vardecl.next == NULL)
679
fprintf(io, "%s", nl);
680
681
682
else
{
const int attr = ast->vardecl.next->attributes;
683
fprintf(io, ", ");
684
ast->vardecl.next->attributes = 0;
685
print_ast(io, 1, ast->vardecl.next);
686
687
688
689
690
ast->vardecl.next->attributes = attr;
} // if
break;
case MOJOSHADER_AST_PACK_OFFSET:
691
fprintf(io, " : packoffset(%s%s%s)", ast->packoffset.ident1,
692
693
694
695
696
ast->packoffset.ident2 ? "." : "",
ast->packoffset.ident2 ? ast->packoffset.ident2 : "");
break;
case MOJOSHADER_AST_VARIABLE_LOWLEVEL:
697
print_ast(io, 0, ast->varlowlevel.packoffset);
698
if (ast->varlowlevel.register_name)
699
fprintf(io, " : register(%s)", ast->varlowlevel.register_name);
700
701
702
703
704
break;
case MOJOSHADER_AST_ANNOTATION:
{
const MOJOSHADER_astAnnotations *a = &ast->annotations;
705
fprintf(io, "<");
706
707
while (a)
{
708
709
fprintf(io, " ");
print_ast_datatype(io, a->datatype);
710
711
if (a->initializer != NULL)
{
712
713
fprintf(io, " = ");
print_ast(io, 0, a->initializer);
714
715
} // if
if (a->next)
716
fprintf(io, ",");
717
718
a = a->next;
} // while
719
fprintf(io, " >");
720
721
722
723
724
725
726
727
728
729
730
break;
} // case
default:
assert(0 && "unexpected type");
break;
} // switch
#undef DO_INDENT
} // print_ast
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
static int open_include(MOJOSHADER_includeType inctype, const char *fname,
const char *parent, const char **outdata,
unsigned int *outbytes, MOJOSHADER_malloc m,
MOJOSHADER_free f, void *d)
{
int i;
for (i = 0; i < include_path_count; i++)
{
const char *path = include_paths[i];
const size_t len = strlen(path) + strlen(fname) + 2;
char *buf = (char *) m(len, d);
if (buf == NULL)
return 0;
snprintf(buf, len, "%s/%s", path, fname);
FILE *io = fopen(buf, "rb");
f(buf, d);
if (io == NULL)
continue;
if (fseek(io, 0, SEEK_END) != -1)
{
const long fsize = ftell(io);
if ((fsize == -1) || (fseek(io, 0, SEEK_SET) == -1))
{
fclose(io);
return 0;
} // if
char *data = (char *) m(fsize, d);
if (data == NULL)
{
fclose(io);
return 0;
} // if
if (fread(data, fsize, 1, io) != 1)
{
f(data, d);
fclose(io);
return 0;
} // if
fclose(io);
*outdata = data;
*outbytes = (unsigned int) fsize;
return 1;
} // if
} // for
return 0;
} // open_include
786
787
static void close_include(const char *data, MOJOSHADER_malloc m,
MOJOSHADER_free f, void *d)
788
789
790
791
792
{
f((void *) data, d);
} // close_include
793
static int preprocess(const char *fname, const char *buf, int len,
794
795
const char *outfile,
const MOJOSHADER_preprocessorDefine *defs,
796
unsigned int defcount, FILE *io)
797
798
799
800
{
const MOJOSHADER_preprocessData *pd;
int retval = 0;
801
802
pd = MOJOSHADER_preprocess(fname, buf, len, defs, defcount, open_include,
close_include, Malloc, Free, NULL);
803
804
805
806
807
808
if (pd->error_count > 0)
{
int i;
for (i = 0; i < pd->error_count; i++)
{
809
fprintf(stderr, "%s:%d: ERROR: %s\n",
810
pd->errors[i].filename ? pd->errors[i].filename : "???",
811
812
813
814
815
816
817
818
pd->errors[i].error_position,
pd->errors[i].error);
} // for
} // if
else
{
if (pd->output != NULL)
{
819
820
const int len = pd->output_len;
if ((len) && (fwrite(pd->output, len, 1, io) != 1))
821
printf(" ... fwrite('%s') failed.\n", outfile);
822
else if ((outfile != NULL) && (fclose(io) == EOF))
823
824
825
826
827
828
829
830
printf(" ... fclose('%s') failed.\n", outfile);
else
retval = 1;
} // if
} // else
MOJOSHADER_freePreprocessData(pd);
return retval;
831
} // preprocess
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
static int assemble(const char *fname, const char *buf, int len,
const char *outfile,
const MOJOSHADER_preprocessorDefine *defs,
unsigned int defcount, FILE *io)
{
const MOJOSHADER_parseData *pd;
int retval = 0;
pd = MOJOSHADER_assemble(fname, buf, len, NULL, 0, NULL, 0,
defs, defcount, open_include, close_include,
Malloc, Free, NULL);
if (pd->error_count > 0)
{
int i;
for (i = 0; i < pd->error_count; i++)
{
851
fprintf(stderr, "%s:%d: ERROR: %s\n",
852
853
854
855
856
857
858
859
860
pd->errors[i].filename ? pd->errors[i].filename : "???",
pd->errors[i].error_position,
pd->errors[i].error);
} // for
} // if
else
{
if (pd->output != NULL)
{
861
862
const int len = pd->output_len;
if ((len) && (fwrite(pd->output, len, 1, io) != 1))
863
864
865
866
867
868
869
870
871
872
873
874
printf(" ... fwrite('%s') failed.\n", outfile);
else if ((outfile != NULL) && (fclose(io) == EOF))
printf(" ... fclose('%s') failed.\n", outfile);
else
retval = 1;
} // if
} // else
MOJOSHADER_freeParseData(pd);
return retval;
} // assemble
875
876
877
878
static int ast(const char *fname, const char *buf, int len,
const char *outfile, const MOJOSHADER_preprocessorDefine *defs,
unsigned int defcount, FILE *io)
{
879
880
const MOJOSHADER_astData *ad;
int retval = 0;
881
882
ad = MOJOSHADER_parseAst(MOJOSHADER_SRC_PROFILE_HLSL_PS_1_1, // !!! FIXME
883
884
fname, buf, len, defs, defcount,
open_include, close_include, Malloc, Free, NULL);
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
if (ad->error_count > 0)
{
int i;
for (i = 0; i < ad->error_count; i++)
{
fprintf(stderr, "%s:%d: ERROR: %s\n",
ad->errors[i].filename ? ad->errors[i].filename : "???",
ad->errors[i].error_position,
ad->errors[i].error);
} // for
} // if
else
{
print_ast(io, 0, ad->ast);
if ((outfile != NULL) && (fclose(io) == EOF))
printf(" ... fclose('%s') failed.\n", outfile);
else
retval = 1;
} // else
905
MOJOSHADER_freeAstData(ad);
906
907
return retval;
908
} // ast
909
910
911
912
913
914
static int compile(const char *fname, const char *buf, int len,
const char *outfile,
const MOJOSHADER_preprocessorDefine *defs,
unsigned int defcount, FILE *io)
{
915
916
917
// !!! FIXME: write me.
//const MOJOSHADER_parseData *pd;
//int retval = 0;
918
919
920
MOJOSHADER_compile(MOJOSHADER_SRC_PROFILE_HLSL_PS_1_1, // !!! FIXME
fname, buf, len, defs, defcount,
921
922
923
924
open_include, close_include,
Malloc, Free, NULL);
return 1;
} // compile
925
926
927
928
typedef enum
{
ACTION_UNKNOWN,
929
ACTION_VERSION,
930
931
ACTION_PREPROCESS,
ACTION_ASSEMBLE,
932
ACTION_AST,
933
ACTION_COMPILE,
934
935
936
} Action;
937
938
int main(int argc, char **argv)
{
939
Action action = ACTION_UNKNOWN;
940
int retval = 1;
941
942
943
const char *infile = NULL;
const char *outfile = NULL;
int i;
944
945
946
947
MOJOSHADER_preprocessorDefine *defs = NULL;
unsigned int defcount = 0;
948
949
950
951
include_paths = (const char **) malloc(sizeof (char *));
include_paths[0] = ".";
include_path_count = 1;
952
// !!! FIXME: clean this up.
953
954
955
956
for (i = 1; i < argc; i++)
{
const char *arg = argv[i];
957
958
if (strcmp(arg, "-P") == 0)
{
959
if ((action != ACTION_UNKNOWN) && (action != ACTION_PREPROCESS))
960
961
962
963
964
965
fail("Multiple actions specified");
action = ACTION_PREPROCESS;
} // if
else if (strcmp(arg, "-A") == 0)
{
966
if ((action != ACTION_UNKNOWN) && (action != ACTION_ASSEMBLE))
967
968
969
970
fail("Multiple actions specified");
action = ACTION_ASSEMBLE;
} // else if
971
972
973
974
975
976
977
else if (strcmp(arg, "-T") == 0)
{
if ((action != ACTION_UNKNOWN) && (action != ACTION_AST))
fail("Multiple actions specified");
action = ACTION_AST;
} // else if
978
979
980
981
982
983
984
else if (strcmp(arg, "-C") == 0)
{
if ((action != ACTION_UNKNOWN) && (action != ACTION_COMPILE))
fail("Multiple actions specified");
action = ACTION_COMPILE;
} // else if
985
986
987
988
989
990
991
else if ((strcmp(arg, "-V") == 0) || (strcmp(arg, "--version") == 0))
{
if ((action != ACTION_UNKNOWN) && (action != ACTION_VERSION))
fail("Multiple actions specified");
action = ACTION_VERSION;
} // else if
992
else if (strcmp(arg, "-o") == 0)
993
994
{
if (outfile != NULL)
995
fail("multiple output files specified");
996
997
998
arg = argv[++i];
if (arg == NULL)
999
fail("no filename after '-o'");
1000
outfile = arg;