mirror of
https://github.com/php/php-src.git
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8d6cfb797b
. GD is now thread-safe thanks to wrappers around freetype library . Significant optimization to png writing code. . Miscellaneous fixes. Fixed memory leak inside php_imagettftext_common() Make ext/gd compile with GD 2.0.17+ (gdFreeFontCache() is not avaliable)
129 lines
2.3 KiB
C
129 lines
2.3 KiB
C
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/*
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* io_file.c
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*
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* Implements the file interface.
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*
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* As will all I/O modules, most functions are for local use only (called
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* via function pointers in the I/O context).
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*
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* Most functions are just 'wrappers' for standard file functions.
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*
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* Written/Modified 1999, Philip Warner.
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*
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*/
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/* For platforms with incomplete ANSI defines. Fortunately,
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SEEK_SET is defined to be zero by the standard. */
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#ifndef SEEK_SET
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#define SEEK_SET 0
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#endif /* SEEK_SET */
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#include <math.h>
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#include <string.h>
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#include <stdlib.h>
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#include "gd.h"
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#include "gdhelpers.h"
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/* this is used for creating images in main memory */
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typedef struct fileIOCtx
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{
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gdIOCtx ctx;
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FILE *f;
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} fileIOCtx;
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gdIOCtx *newFileCtx (FILE * f);
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static int fileGetbuf (gdIOCtx *, void *, int);
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static int filePutbuf (gdIOCtx *, const void *, int);
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static void filePutchar (gdIOCtx *, int);
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static int fileGetchar (gdIOCtx * ctx);
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static int fileSeek (struct gdIOCtx *, const int);
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static long fileTell (struct gdIOCtx *);
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static void gdFreeFileCtx (gdIOCtx * ctx);
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/* return data as a dynamic pointer */
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gdIOCtx * gdNewFileCtx (FILE * f)
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{
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fileIOCtx *ctx;
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ctx = (fileIOCtx *) gdMalloc(sizeof (fileIOCtx));
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ctx->f = f;
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ctx->ctx.getC = fileGetchar;
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ctx->ctx.putC = filePutchar;
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ctx->ctx.getBuf = fileGetbuf;
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ctx->ctx.putBuf = filePutbuf;
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ctx->ctx.tell = fileTell;
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ctx->ctx.seek = fileSeek;
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ctx->ctx.gd_free = gdFreeFileCtx;
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return (gdIOCtx *) ctx;
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}
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static void gdFreeFileCtx (gdIOCtx * ctx)
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{
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gdFree(ctx);
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}
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static int filePutbuf (gdIOCtx * ctx, const void *buf, int size)
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{
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fileIOCtx *fctx;
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fctx = (fileIOCtx *) ctx;
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return fwrite(buf, 1, size, fctx->f);
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}
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static int fileGetbuf (gdIOCtx * ctx, void *buf, int size)
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{
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fileIOCtx *fctx;
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fctx = (fileIOCtx *) ctx;
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return fread(buf, 1, size, fctx->f);
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}
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static void filePutchar (gdIOCtx * ctx, int a)
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{
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unsigned char b;
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fileIOCtx *fctx;
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fctx = (fileIOCtx *) ctx;
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b = a;
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putc (b, fctx->f);
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}
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static int fileGetchar (gdIOCtx * ctx)
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{
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fileIOCtx *fctx;
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fctx = (fileIOCtx *) ctx;
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return getc (fctx->f);
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}
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static int fileSeek (struct gdIOCtx *ctx, const int pos)
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{
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fileIOCtx *fctx;
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fctx = (fileIOCtx *) ctx;
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return (fseek (fctx->f, pos, SEEK_SET) == 0);
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}
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static long fileTell (struct gdIOCtx *ctx)
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{
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fileIOCtx *fctx;
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fctx = (fileIOCtx *) ctx;
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return ftell (fctx->f);
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}
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