mojoshader_preprocessor.c
author Ryan C. Gordon <icculus@icculus.org>
Tue, 10 Feb 2009 17:54:00 -0500
changeset 561 0d2535cc5ac3
parent 560 225d579ae929
child 564 c669568326fb
permissions -rw-r--r--
Added basic lexer debug output.
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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/**
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 * MojoShader; generate shader programs from bytecode of compiled
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 *  Direct3D shaders.
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 *
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 * Please see the file LICENSE.txt in the source's root directory.
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 *
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 *  This file written by Ryan C. Gordon.
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 */
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#define __MOJOSHADER_INTERNAL__ 1
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#include "mojoshader_internal.h"
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#define DEBUG_TOKENIZER 1
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typedef struct DefineHash
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{
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    MOJOSHADER_preprocessorDefine define;
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    struct DefineHash *next;
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} DefineHash;
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typedef struct Context
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{
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    int isfail;
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    int out_of_memory;
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    char failstr[128];
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    IncludeState *include_stack;
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    DefineHash *define_hashtable[256];
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    int pushedback;
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    const char *token;
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    unsigned int tokenlen;
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    MOJOSHADER_includeOpen open_callback;
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    MOJOSHADER_includeClose close_callback;
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    MOJOSHADER_malloc malloc;
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    MOJOSHADER_free free;
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    void *malloc_data;
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} Context;
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// Convenience functions for allocators...
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static inline void out_of_memory(Context *ctx)
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{
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    ctx->isfail = ctx->out_of_memory = 1;
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} // out_of_memory
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static inline void *Malloc(Context *ctx, const size_t len)
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{
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    void *retval = ctx->malloc((int) len, ctx->malloc_data);
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    if (retval == NULL)
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        out_of_memory(ctx);
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    return retval;
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} // Malloc
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static inline void Free(Context *ctx, void *ptr)
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{
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    if (ptr != NULL)  // check for NULL in case of dumb free() impl.
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        ctx->free(ptr, ctx->malloc_data);
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} // Free
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static inline char *StrDup(Context *ctx, const char *str)
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{
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    char *retval = (char *) Malloc(ctx, strlen(str) + 1);
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    if (retval != NULL)
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        strcpy(retval, str);
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    return retval;
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} // StrDup
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static void failf(Context *ctx, const char *fmt, ...) ISPRINTF(2,3);
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static void failf(Context *ctx, const char *fmt, ...)
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{
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    ctx->isfail = 1;
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    va_list ap;
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    va_start(ap, fmt);
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    vsnprintf(ctx->failstr, sizeof (ctx->failstr), fmt, ap);  // rebuild it.
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    va_end(ap);
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} // failf
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static inline void fail(Context *ctx, const char *reason)
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{
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    failf(ctx, "%s", reason);
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} // fail
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// Preprocessor define hashtable stuff...
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static unsigned char hash_define(const char *sym)
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{
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    unsigned char retval = 0;
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    while (sym)
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        retval += *(sym++);
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    return retval;
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} // hash_define
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static int add_define(Context *ctx, const char *sym, const char *val)
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{
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    char *identifier = NULL;
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    char *definition = NULL;
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    const unsigned char hash = hash_define(sym);
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    DefineHash *bucket = ctx->define_hashtable[hash];
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    while (bucket)
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    {
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        if (strcmp(bucket->define.identifier, sym) == 0)
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        {
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            failf(ctx, "'%s' already defined", sym);
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            return 0;
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        } // if
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        bucket = bucket->next;
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    } // while
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    bucket = (DefineHash *) Malloc(ctx, sizeof (DefineHash));
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    if (bucket == NULL)
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        return 0;
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    identifier = (char *) Malloc(ctx, strlen(sym) + 1);
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    definition = (char *) Malloc(ctx, strlen(val) + 1);
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    if ((identifier == NULL) || (definition == NULL))
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    {
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        Free(ctx, identifier);
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        Free(ctx, definition);
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        Free(ctx, bucket);
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        return 0;
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    } // if
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    strcpy(identifier, sym);
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    strcpy(definition, val);
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    bucket->define.identifier = identifier;
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    bucket->define.definition = definition;
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    bucket->next = ctx->define_hashtable[hash];
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    ctx->define_hashtable[hash] = bucket;
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    return 1;
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} // add_define
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static int remove_define(Context *ctx, const char *sym)
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{
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    const unsigned char hash = hash_define(sym);
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    DefineHash *bucket = ctx->define_hashtable[hash];
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    DefineHash *prev = NULL;
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    while (bucket)
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    {
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        if (strcmp(bucket->define.identifier, sym) == 0)
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        {
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            if (prev == NULL)
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                ctx->define_hashtable[hash] = bucket->next;
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            else
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                prev->next = bucket->next;
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            Free(ctx, (void *) bucket->define.identifier);
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            Free(ctx, (void *) bucket->define.definition);
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            Free(ctx, bucket);
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            return 1;
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        } // if
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        prev = bucket;
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        bucket = bucket->next;
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    } // while
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    failf(ctx, "'%s' not defined", sym);
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    return 0;
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} // remove_define
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static const char *find_define(Context *ctx, const char *sym)
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{
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    const unsigned char hash = hash_define(sym);
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    DefineHash *bucket = ctx->define_hashtable[hash];
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    while (bucket)
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    {
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        if (strcmp(bucket->define.identifier, sym) == 0)
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            return bucket->define.definition;
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        bucket = bucket->next;
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    } // while
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    return NULL;
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} // find_define
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static void free_all_defines(Context *ctx)
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{
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    int i;
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    for (i = 0; i < STATICARRAYLEN(ctx->define_hashtable); i++)
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    {
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        DefineHash *bucket = ctx->define_hashtable[i];
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        ctx->define_hashtable[i] = NULL;
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        while (bucket)
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   184
        {
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            DefineHash *next = bucket->next;
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            Free(ctx, (void *) bucket->define.identifier);
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            Free(ctx, (void *) bucket->define.definition);
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            Free(ctx, bucket);
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            bucket = next;
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        } // while
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    } // for
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} // find_define
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static int push_source(Context *ctx, const char *fname, const char *source,
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                       unsigned int srclen, int included)
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{
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    IncludeState *state = (IncludeState *) Malloc(ctx, sizeof (IncludeState));
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    if (state == NULL)
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        return 0;
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    memset(state, '\0', sizeof (IncludeState));
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560
225d579ae929 Handle NULL file names.
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    if (fname != NULL)
555
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    {
560
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        state->filename = StrDup(ctx, fname);
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   206
        if (state->filename == NULL)
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   207
        {
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            Free(ctx, state);
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   209
            return 0;
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   210
        } // if
555
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   211
    } // if
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   212
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    state->included = included;
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    state->source_base = source;
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   215
    state->source = source;
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    state->token = source;
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    state->insert_token = TOKEN_UNKNOWN;
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    state->insert_token2 = TOKEN_UNKNOWN;
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   219
    state->bytes_left = srclen;
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   220
    state->line = 1;
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   221
    state->next = ctx->include_stack;
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   222
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    ctx->include_stack = state;
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   224
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   225
    return 1;
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   226
} // push_source
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   227
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   228
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   229
static void pop_source(Context *ctx)
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   230
{
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   231
    IncludeState *state = ctx->include_stack;
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   232
    if (state == NULL)
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   233
        return;
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   234
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   235
    if (state->included)
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   236
    {
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   237
        ctx->close_callback(state->source_base, ctx->malloc,
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   238
                            ctx->free, ctx->malloc_data);
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   239
    } // if
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   240
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   241
    ctx->include_stack = state->next;
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   242
    Free(ctx, state->filename);
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   243
    Free(ctx, state);
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   244
} // pop_source
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   245
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   246
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   247
Preprocessor *preprocessor_start(const char *fname, const char *source,
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   248
                            unsigned int sourcelen,
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   249
                            MOJOSHADER_includeOpen open_callback,
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   250
                            MOJOSHADER_includeClose close_callback,
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   251
                            const MOJOSHADER_preprocessorDefine **defines,
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   252
                            unsigned int define_count,
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   253
                            MOJOSHADER_malloc m, MOJOSHADER_free f, void *d)
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   254
{
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   255
    int okay = 1;
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   256
    int i = 0;
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   257
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   258
    // the preprocessor is internal-only, so we verify all these are != NULL.
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   259
    assert(m != NULL);
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   260
    assert(f != NULL);
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   261
    assert(open_callback != NULL);
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diff changeset
   262
    assert(close_callback != NULL);
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diff changeset
   263
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   264
    Context *ctx = (Context *) m(sizeof (Context), d);
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diff changeset
   265
    if (ctx == NULL)
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diff changeset
   266
        return 0;
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diff changeset
   267
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   268
    memset(ctx, '\0', sizeof (Context));
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diff changeset
   269
    ctx->malloc = m;
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diff changeset
   270
    ctx->free = f;
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   271
    ctx->malloc_data = d;
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   272
    ctx->open_callback = open_callback;
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   273
    ctx->close_callback = close_callback;
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diff changeset
   274
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   275
    for (i = 0; i < define_count; i++)
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diff changeset
   276
    {
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   277
        if (!add_define(ctx, defines[i]->identifier, defines[i]->definition))
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diff changeset
   278
        {
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diff changeset
   279
            okay = 0;
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diff changeset
   280
            break;
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diff changeset
   281
        } // if
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diff changeset
   282
    } // for
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diff changeset
   283
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diff changeset
   284
    if ((okay) && (!push_source(ctx, fname, source, sourcelen, 0)))
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diff changeset
   285
        okay = 0;
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diff changeset
   286
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diff changeset
   287
    if (!okay)
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diff changeset
   288
    {
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diff changeset
   289
        preprocessor_end((Preprocessor *) ctx);
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diff changeset
   290
        return NULL;
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parents:
diff changeset
   291
    } // if
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diff changeset
   292
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diff changeset
   293
    return (Preprocessor *) ctx;
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parents:
diff changeset
   294
} // preprocessor_start
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diff changeset
   295
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diff changeset
   296
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   297
void preprocessor_end(Preprocessor *_ctx)
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   298
{
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   299
    Context *ctx = (Context *) _ctx;
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   300
    if (ctx == NULL)
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diff changeset
   301
        return;
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diff changeset
   302
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diff changeset
   303
    while (ctx->include_stack != NULL)
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diff changeset
   304
        pop_source(ctx);
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diff changeset
   305
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diff changeset
   306
    free_all_defines(ctx);
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diff changeset
   307
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diff changeset
   308
    Free(ctx, ctx);
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diff changeset
   309
} // preprocessor_end
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   310
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diff changeset
   311
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   312
const char *preprocessor_error(Preprocessor *_ctx)
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   313
{
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diff changeset
   314
    Context *ctx = (Context *) _ctx;
557
ef6a607a5618 Removed preprocessor_clearerror().
Ryan C. Gordon <icculus@icculus.org>
parents: 555
diff changeset
   315
    if (ctx->isfail)
ef6a607a5618 Removed preprocessor_clearerror().
Ryan C. Gordon <icculus@icculus.org>
parents: 555
diff changeset
   316
    {
ef6a607a5618 Removed preprocessor_clearerror().
Ryan C. Gordon <icculus@icculus.org>
parents: 555
diff changeset
   317
        ctx->isfail = 0;
ef6a607a5618 Removed preprocessor_clearerror().
Ryan C. Gordon <icculus@icculus.org>
parents: 555
diff changeset
   318
        return ctx->failstr;
ef6a607a5618 Removed preprocessor_clearerror().
Ryan C. Gordon <icculus@icculus.org>
parents: 555
diff changeset
   319
    } // if
ef6a607a5618 Removed preprocessor_clearerror().
Ryan C. Gordon <icculus@icculus.org>
parents: 555
diff changeset
   320
ef6a607a5618 Removed preprocessor_clearerror().
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
   321
    return NULL;
555
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diff changeset
   322
} // preprocessor_error
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   323
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diff changeset
   324
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Ryan C. Gordon <icculus@icculus.org>
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   325
int preprocessor_outofmemory(Preprocessor *_ctx)
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diff changeset
   326
{
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Ryan C. Gordon <icculus@icculus.org>
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diff changeset
   327
    Context *ctx = (Context *) _ctx;
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Ryan C. Gordon <icculus@icculus.org>
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diff changeset
   328
    return ctx->out_of_memory;
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Ryan C. Gordon <icculus@icculus.org>
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diff changeset
   329
} // preprocessor_outofmemory
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   330
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   331
561
0d2535cc5ac3 Added basic lexer debug output.
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diff changeset
   332
static inline const char *_preprocessor_nexttoken(Preprocessor *_ctx,
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
   333
                                             unsigned int *_len, Token *_token)
555
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diff changeset
   334
{
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   335
    Context *ctx = (Context *) _ctx;
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parents:
diff changeset
   336
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   337
    while (1)
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   338
    {
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   339
        IncludeState *state = ctx->include_stack;
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   340
        if (state == NULL)
559
d34ac77da171 Preprocessor should return TOKEN_EOI when we finish the whole include stack.
Ryan C. Gordon <icculus@icculus.org>
parents: 558
diff changeset
   341
        {
d34ac77da171 Preprocessor should return TOKEN_EOI when we finish the whole include stack.
Ryan C. Gordon <icculus@icculus.org>
parents: 558
diff changeset
   342
            *_token = TOKEN_EOI;
d34ac77da171 Preprocessor should return TOKEN_EOI when we finish the whole include stack.
Ryan C. Gordon <icculus@icculus.org>
parents: 558
diff changeset
   343
            *_len = 0;
555
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Ryan C. Gordon <icculus@icculus.org>
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diff changeset
   344
            return NULL;  // we're done!
559
d34ac77da171 Preprocessor should return TOKEN_EOI when we finish the whole include stack.
Ryan C. Gordon <icculus@icculus.org>
parents: 558
diff changeset
   345
        } // if
555
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diff changeset
   346
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   347
        if (state->insert_token != TOKEN_UNKNOWN)
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   348
        {
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   349
            state->insert_tokchar = (char) state->insert_token;
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   350
            *_token = state->insert_token;
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   351
            *_len = 1;
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   352
            state->insert_token = TOKEN_UNKNOWN;
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   353
            return &state->insert_tokchar;
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   354
        } // if
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   355
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   356
        else if (state->insert_token2 != TOKEN_UNKNOWN)
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   357
        {
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   358
            state->insert_tokchar = (char) state->insert_token2;
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   359
            *_token = state->insert_token2;
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   360
            *_len = 1;
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   361
            state->insert_token2 = TOKEN_UNKNOWN;
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   362
            return &state->insert_tokchar;
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   363
        } // if
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   364
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   365
        Token token = preprocessor_internal_lexer(state);
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   366
        if (token == TOKEN_EOI)
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   367
        {
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   368
            assert(state->bytes_left == 0);
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   369
            pop_source(ctx);
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   370
            continue;  // pick up again after parent's #include line.
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   371
        } // if
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   372
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   373
        // Microsoft's preprocessor is weird.
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   374
        // It ignores newlines, and then inserts its own around certain
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   375
        //  tokens. For example, after a semicolon. This allows HLSL code to
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   376
        //  be mostly readable, and lets the ';' work as a single line comment
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   377
        //  in the assembler.
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   378
        if ( (token == ((Token) ';')) || (token == ((Token) '}')) )
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   379
            state->insert_token = (Token) '\n';
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   380
        else if (token == ((Token) '{'))
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   381
        {
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   382
            state->insert_token = (Token) '{';
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   383
            state->insert_token2 = (Token) '\n';
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   384
            state->insert_tokchar = '\n';
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   385
            *_token = (Token) '\n';
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   386
            *_len = 1;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   387
            return &state->insert_tokchar;
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   388
        } // else if
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   389
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   390
        *_token = token;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   391
        *_len = (unsigned int) (state->source - state->token);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   392
        return state->token;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   393
    } // while
561
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   394
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   395
    assert(0 && "shouldn't hit this code");
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   396
    *_token = TOKEN_UNKNOWN;
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   397
    *_len = 0;
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   398
    return NULL;
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   399
} // _preprocessor_nexttoken
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   400
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   401
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   402
const char *preprocessor_nexttoken(Preprocessor *ctx, unsigned int *len,
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   403
                                   Token *token)
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   404
{
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   405
    const char *retval = _preprocessor_nexttoken(ctx, len, token);
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   406
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   407
    #if DEBUG_TOKENIZER
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   408
    printf("TOKEN: \"");
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   409
    unsigned int i;
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   410
    for (i = 0; i < *len; i++)
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   411
    {
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   412
        if (retval[i] == '\n')
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   413
            printf("\\n");
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   414
        else
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   415
            printf("%c", retval[i]);
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   416
    } // for
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   417
    printf("\" (");
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   418
    switch (*token)
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   419
    {
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   420
        #define TOKENCASE(x) case x: printf("%s", #x); break
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   421
        TOKENCASE(TOKEN_UNKNOWN);
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   422
        TOKENCASE(TOKEN_IDENTIFIER);
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   423
        TOKENCASE(TOKEN_INT_LITERAL);
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   424
        TOKENCASE(TOKEN_FLOAT_LITERAL);
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   425
        TOKENCASE(TOKEN_STRING_LITERAL);
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   426
        TOKENCASE(TOKEN_ELLIPSIS);
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   427
        TOKENCASE(TOKEN_RSHIFT);
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   428
        TOKENCASE(TOKEN_LSHIFT);
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   429
        TOKENCASE(TOKEN_ANDAND);
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   430
        TOKENCASE(TOKEN_OROR);
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   431
        TOKENCASE(TOKEN_LEQ);
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   432
        TOKENCASE(TOKEN_GEQ);
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   433
        TOKENCASE(TOKEN_EQL);
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   434
        TOKENCASE(TOKEN_NEQ);
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   435
        TOKENCASE(TOKEN_HASHHASH);
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   436
        TOKENCASE(TOKEN_PP_INCLUDE);
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   437
        TOKENCASE(TOKEN_PP_LINE);
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   438
        TOKENCASE(TOKEN_PP_DEFINE);
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   439
        TOKENCASE(TOKEN_PP_UNDEF);
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   440
        TOKENCASE(TOKEN_PP_IF);
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   441
        TOKENCASE(TOKEN_PP_IFDEF);
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   442
        TOKENCASE(TOKEN_PP_IFNDEF);
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   443
        TOKENCASE(TOKEN_PP_ELSE);
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   444
        TOKENCASE(TOKEN_PP_ELIF);
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   445
        TOKENCASE(TOKEN_PP_ENDIF);
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   446
        TOKENCASE(TOKEN_PP_ERROR);
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   447
        TOKENCASE(TOKEN_PP_INCOMPLETE_COMMENT);
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   448
        TOKENCASE(TOKEN_EOI);
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   449
        #undef TOKENCASE
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   450
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   451
        case ((Token) '\n'):
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   452
            printf("'\\n'");
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   453
            break;
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   454
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   455
        default:
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   456
            assert(((int)*token) < 256);
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   457
            printf("'%c'", (char) *token);
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   458
            break;
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   459
    } // switch
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   460
    printf(")\n");
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   461
    #endif
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   462
0d2535cc5ac3 Added basic lexer debug output.
Ryan C. Gordon <icculus@icculus.org>
parents: 560
diff changeset
   463
    return retval;
555
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   464
} // preprocessor_nexttoken
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   465
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   466
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   467
const char *preprocessor_sourcepos(Preprocessor *_ctx, unsigned int *pos)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   468
{
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   469
    Context *ctx = (Context *) _ctx;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   470
    if (ctx->include_stack == NULL)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   471
    {
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   472
        *pos = 0;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   473
        return NULL;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   474
    } // if
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   475
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   476
    *pos = ctx->include_stack->line;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   477
    return ctx->include_stack->filename;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   478
} // preprocessor_sourcepos
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   479
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   480
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   481
// public API...
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   482
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   483
static const MOJOSHADER_preprocessData out_of_mem_data_preprocessor = {
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   484
    1, &MOJOSHADER_out_of_mem_error, 0, 0, 0, 0, 0
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   485
};
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   486
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   487
#define BUFFER_LEN (64 * 1024)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   488
typedef struct BufferList
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   489
{
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   490
    char buffer[BUFFER_LEN];
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   491
    size_t bytes;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   492
    struct BufferList *next;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   493
} BufferList;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   494
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   495
typedef struct Buffer
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   496
{
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   497
    size_t total_bytes;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   498
    BufferList head;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   499
    BufferList *tail;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   500
} Buffer;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   501
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   502
static void buffer_init(Buffer *buffer)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   503
{
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   504
    buffer->total_bytes = 0;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   505
    buffer->head.bytes = 0;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   506
    buffer->head.next = NULL;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   507
    buffer->tail = &buffer->head;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   508
} // buffer_init
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   509
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   510
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   511
static int add_to_buffer(Buffer *buffer, const char *data,
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   512
                         size_t len, MOJOSHADER_malloc m, void *d)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   513
{
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   514
    buffer->total_bytes += len;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   515
    while (len > 0)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   516
    {
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   517
        const size_t avail = BUFFER_LEN - buffer->tail->bytes;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   518
        const size_t cpy = (avail > len) ? len : avail;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   519
        memcpy(buffer->tail->buffer + buffer->tail->bytes, data, cpy);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   520
        len -= cpy;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   521
        data += cpy;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   522
        buffer->tail->bytes += cpy;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   523
        assert(buffer->tail->bytes <= BUFFER_LEN);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   524
        if (buffer->tail->bytes == BUFFER_LEN)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   525
        {
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   526
            BufferList *item = (BufferList *) m(sizeof (BufferList), d);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   527
            if (item == NULL)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   528
                return 0;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   529
            item->bytes = 0;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   530
            item->next = NULL;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   531
            buffer->tail->next = item;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   532
            buffer->tail = item;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   533
        } // if
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   534
    } // while
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   535
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   536
    return 1;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   537
} // add_to_buffer
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   538
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   539
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   540
static int indent_buffer(Buffer *buffer, int n, int newline,
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   541
                         MOJOSHADER_malloc m, void *d)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   542
{
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   543
    static char spaces[4] = { ' ', ' ', ' ', ' ' };
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   544
    if (newline)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   545
    {
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   546
        while (n--)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   547
        {
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   548
            if (!add_to_buffer(buffer, spaces, sizeof (spaces), m, d))
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   549
                return 0;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   550
        } // while
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   551
    } // if
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   552
    else
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   553
    {
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   554
        if (!add_to_buffer(buffer, spaces, 1, m, d))
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   555
            return 0;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   556
    } // else
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   557
    return 1;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   558
} // indent_buffer
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   559
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   560
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   561
static char *flatten_buffer(Buffer *buffer, MOJOSHADER_malloc m, void *d)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   562
{
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   563
    char *retval = m(buffer->total_bytes + 1, d);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   564
    if (retval == NULL)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   565
        return NULL;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   566
    BufferList *item = &buffer->head;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   567
    char *ptr = retval;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   568
    while (item != NULL)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   569
    {
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   570
        BufferList *next = item->next;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   571
        memcpy(ptr, item->buffer, item->bytes);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   572
        ptr += item->bytes;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   573
        item = next;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   574
    } // while
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   575
    *ptr = '\0';
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   576
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   577
    assert(ptr == (retval + buffer->total_bytes));
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   578
    return retval;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   579
} // flatten_buffer
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   580
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   581
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   582
static void free_buffer(Buffer *buffer, MOJOSHADER_free f, void *d)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   583
{
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   584
    // head is statically allocated, so start with head.next...
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   585
    BufferList *item = buffer->head.next;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   586
    while (item != NULL)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   587
    {
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   588
        BufferList *next = item->next;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   589
        f(item, d);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   590
        item = next;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   591
    } // while
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   592
    buffer_init(buffer);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   593
} // free_buffer
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   594
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   595
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   596
// !!! FIXME: cut and paste.
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   597
static void free_error_list(ErrorList *item, MOJOSHADER_free f, void *d)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   598
{
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   599
    while (item != NULL)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   600
    {
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   601
        ErrorList *next = item->next;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   602
        f((void *) item->error.error, d);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   603
        f((void *) item->error.filename, d);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   604
        f(item, d);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   605
        item = next;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   606
    } // while
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   607
} // free_error_list
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   608
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   609
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   610
// !!! FIXME: cut and paste.
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   611
static MOJOSHADER_error *build_errors(ErrorList **errors, const int count,
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   612
                         MOJOSHADER_malloc m, MOJOSHADER_free f, void *d)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   613
{
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   614
    int total = 0;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   615
    MOJOSHADER_error *retval = (MOJOSHADER_error *)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   616
                                m(sizeof (MOJOSHADER_error) * count, d);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   617
    if (retval == NULL)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   618
        return NULL;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   619
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   620
    ErrorList *item = *errors;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   621
    while (item != NULL)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   622
    {
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   623
        ErrorList *next = item->next;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   624
        // reuse the string allocations
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   625
        memcpy(&retval[total], &item->error, sizeof (MOJOSHADER_error));
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   626
        f(item, d);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   627
        item = next;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   628
        total++;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   629
    } // while
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   630
    *errors = NULL;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   631
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   632
    assert(total == count);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   633
    return retval;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   634
} // build_errors
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   635
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   636
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   637
const MOJOSHADER_preprocessData *MOJOSHADER_preprocess(const char *source,
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   638
                             unsigned int sourcelen,
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   639
                             const MOJOSHADER_preprocessorDefine **defines,
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   640
                             unsigned int define_count,
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   641
                             MOJOSHADER_includeOpen include_open,
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   642
                             MOJOSHADER_includeClose include_close,
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   643
                             MOJOSHADER_malloc m, MOJOSHADER_free f, void *d)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   644
{
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   645
    ErrorList *errors = NULL;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   646
    int error_count = 0;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   647
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   648
    if (m == NULL) m = MOJOSHADER_internal_malloc;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   649
    if (f == NULL) f = MOJOSHADER_internal_free;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   650
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   651
include_open = (MOJOSHADER_includeOpen) 0x1;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   652
include_close = (MOJOSHADER_includeClose) 0x1;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   653
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   654
    const char *fname = "*";  // !!! FIXME
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   655
    Preprocessor *pp = preprocessor_start(fname, source, sourcelen,
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   656
                                          include_open, include_close,
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   657
                                          defines, define_count, m, f, d);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   658
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   659
    if (pp == NULL)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   660
        return &out_of_mem_data_preprocessor;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   661
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   662
    Token token = TOKEN_UNKNOWN;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   663
    const char *tokstr = NULL;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   664
    const char *err = NULL;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   665
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   666
    Buffer buffer;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   667
    buffer_init(&buffer);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   668
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   669
    int nl = 1;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   670
    int indent = 0;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   671
    unsigned int len = 0;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   672
    while ((tokstr = preprocessor_nexttoken(pp, &len, &token)) != NULL)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   673
    {
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   674
        #ifdef _WINDOWS
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   675
        static const char endline[] = { '\r', '\n' };
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   676
        #else
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   677
        static const char endline[] = { '\n' };
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   678
        #endif
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   679
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   680
        const int isnewline = (token == ((Token) '\n'));
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   681
        if (isnewline)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   682
        {
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   683
            tokstr = endline;  // convert to platform-specific.
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   684
            len = sizeof (endline);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   685
        } // if
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   686
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   687
        if ((token == ((Token) '}')) && (indent > 0))
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   688
            indent--;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   689
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   690
        int out_of_memory = preprocessor_outofmemory(pp);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   691
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   692
        if ((!out_of_memory) && (!isnewline))
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   693
            out_of_memory = !indent_buffer(&buffer, indent, nl, m, d);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   694
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   695
        if (!out_of_memory)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   696
            out_of_memory = !add_to_buffer(&buffer, tokstr, len, m, d);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   697
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   698
        if (token == ((Token) '{'))
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   699
            indent++;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   700
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   701
        nl = isnewline;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   702
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   703
        if ((!out_of_memory) && ((err = preprocessor_error(pp)) != NULL))
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   704
        {
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   705
            ErrorList *error = (ErrorList *) m(sizeof (ErrorList), d);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   706
            unsigned int pos = 0;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   707
            char *fname = NULL;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   708
            const char *str = preprocessor_sourcepos(pp, &pos);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   709
            if (str != NULL)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   710
            {
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   711
                fname = (char *) m(strlen(str) + 1, d);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   712
                if (fname != NULL)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   713
                    strcpy(fname, str);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   714
            } // if
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   715
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   716
            // !!! FIXME: cut and paste with other error handlers.
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   717
            char *errstr = (char *) m(strlen(err) + 1, d);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   718
            if (errstr != NULL)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   719
                strcpy(errstr, err);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   720
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   721
            out_of_memory = ((!error) || ((!fname) && (str)) || (!errstr));
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   722
            if (out_of_memory)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   723
            {
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   724
                if (errstr) f(errstr, d);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   725
                if (fname) f(fname, d);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   726
                if (error) f(error, d);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   727
            } // if
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   728
            else
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   729
            {
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   730
                error->error.error = errstr;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   731
                error->error.filename = fname;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   732
                error->error.error_position = pos;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   733
                error->next = NULL;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   734
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   735
                ErrorList *prev = NULL;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   736
                ErrorList *item = errors;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   737
                while (item != NULL)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   738
                {
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   739
                    prev = item;
558
314c86ff14dd Fixed stupid linked list bug.
Ryan C. Gordon <icculus@icculus.org>
parents: 557
diff changeset
   740
                    item = item->next;
555
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   741
                } // while
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   742
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   743
                if (prev == NULL)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   744
                    errors = error;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   745
                else
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   746
                    prev->next = error;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   747
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   748
                error_count++;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   749
            } // else
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   750
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   751
            continue;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   752
        } // if
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   753
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   754
        if (out_of_memory)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   755
        {
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   756
            preprocessor_end(pp);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   757
            free_buffer(&buffer, f, d);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   758
            free_error_list(errors, f, d);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   759
            return &out_of_mem_data_preprocessor;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   760
        } // if
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   761
    } // while
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   762
    
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   763
    preprocessor_end(pp);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   764
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   765
    const size_t total_bytes = buffer.total_bytes;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   766
    char *output = flatten_buffer(&buffer, m, d);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   767
    free_buffer(&buffer, f, d);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   768
    if (output == NULL)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   769
    {
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   770
        free_error_list(errors, f, d);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   771
        return &out_of_mem_data_preprocessor;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   772
    } // if
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   773
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   774
    MOJOSHADER_preprocessData *retval = (MOJOSHADER_preprocessData *)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   775
                                    m(sizeof (MOJOSHADER_preprocessData), d);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   776
    if (retval == NULL)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   777
    {
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   778
        free_error_list(errors, f, d);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   779
        f(output, d);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   780
        return &out_of_mem_data_preprocessor;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   781
    } // if
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   782
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   783
    retval->errors = build_errors(&errors, error_count, m, f, d);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   784
    if (retval->errors == NULL)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   785
    {
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   786
        free_error_list(errors, f, d);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   787
        f(retval, d);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   788
        f(output, d);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   789
        return &out_of_mem_data_preprocessor;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   790
    } // if
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   791
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   792
    retval->error_count = error_count;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   793
    retval->output = output;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   794
    retval->output_len = total_bytes;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   795
    retval->malloc = m;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   796
    retval->free = f;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   797
    retval->malloc_data = d;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   798
    return retval;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   799
} // MOJOSHADER_preprocess
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   800
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   801
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   802
void MOJOSHADER_freePreprocessData(const MOJOSHADER_preprocessData *_data)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   803
{
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   804
    MOJOSHADER_preprocessData *data = (MOJOSHADER_preprocessData *) _data;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   805
    if ((data == NULL) || (data == &out_of_mem_data_preprocessor))
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   806
        return;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   807
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   808
    MOJOSHADER_free f = (data->free == NULL) ? MOJOSHADER_internal_free : data->free;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   809
    void *d = data->malloc_data;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   810
    int i;
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   811
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   812
    if (data->output != NULL)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   813
        f((void *) data->output, d);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   814
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   815
    if (data->errors != NULL)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   816
    {
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   817
        for (i = 0; i < data->error_count; i++)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   818
        {
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   819
            if (data->errors[i].error != NULL)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   820
                f((void *) data->errors[i].error, d);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   821
            if (data->errors[i].filename != NULL)
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   822
                f((void *) data->errors[i].filename, d);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   823
        } // for
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   824
        f(data->errors, d);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   825
    } // if
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   826
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   827
    f(data, d);
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   828
} // MOJOSHADER_freePreprocessData
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   829
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   830
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   831
// end of mojoshader_preprocessor.c ...
940821555fda Initial work on preprocessor. Not yet complete!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   832