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https://github.com/php/php-src.git
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115 lines
2.6 KiB
C
115 lines
2.6 KiB
C
#include "php_gd.h"
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#define CTX_PUTC(c,ctx) ctx->putC(ctx, c)
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static void _php_image_output_putc(struct gdIOCtx *ctx, int c)
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{
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TSRMLS_FETCH();
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php_write(&c, 1 TSRMLS_CC);
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}
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static int _php_image_output_putbuf(struct gdIOCtx *ctx, const void* buf, int l)
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{
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TSRMLS_FETCH();
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return php_write((void *)buf, l TSRMLS_CC);
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}
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static void _php_image_output_ctxfree(struct gdIOCtx *ctx)
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{
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if(ctx) {
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efree(ctx);
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}
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}
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static void _php_image_output_ctx(INTERNAL_FUNCTION_PARAMETERS, int image_type, char *tn, void (*func_p)())
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{
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zval **imgind, **file, **quality;
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gdImagePtr im;
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char *fn = NULL;
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FILE *fp = NULL;
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int argc = ZEND_NUM_ARGS();
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int q = -1, i;
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gdIOCtx *ctx;
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/* The quality parameter for Wbmp stands for the threshold when called from image2wbmp() */
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if (argc < 1 || argc > 3 || zend_get_parameters_ex(argc, &imgind, &file, &quality) == FAILURE)
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{
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WRONG_PARAM_COUNT;
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}
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ZEND_FETCH_RESOURCE(im, gdImagePtr, imgind, -1, "Image", phpi_get_le_gd());
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if (argc > 1) {
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convert_to_string_ex(file);
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fn = Z_STRVAL_PP(file);
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if (argc == 3) {
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convert_to_long_ex(quality);
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q = Z_LVAL_PP(quality);
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}
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}
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if ((argc == 2) || (argc == 3 && Z_STRLEN_PP(file))) {
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if (!fn || fn == empty_string || php_check_open_basedir(fn TSRMLS_CC)) {
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "Invalid filename '%s'", fn);
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RETURN_FALSE;
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}
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fp = VCWD_FOPEN(fn, "wb");
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if (!fp) {
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to open '%s' for writing", fn);
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RETURN_FALSE;
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}
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ctx = gdNewFileCtx(fp);
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} else {
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ctx = emalloc(sizeof(gdIOCtx));
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ctx->putC = _php_image_output_putc;
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ctx->putBuf = _php_image_output_putbuf;
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#if HAVE_LIBGD204
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ctx->gd_free = _php_image_output_ctxfree;
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#else
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ctx->free = _php_image_output_ctxfree;
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#endif
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#if APACHE && defined(CHARSET_EBCDIC)
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/* XXX this is unlikely to work any more thies@thieso.net */
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/* This is a binary file already: avoid EBCDIC->ASCII conversion */
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ap_bsetflag(php3_rqst->connection->client, B_EBCDIC2ASCII, 0);
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#endif
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}
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switch(image_type) {
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case PHP_GDIMG_CONVERT_WBM:
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if(q<0||q>255) {
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "Invalid threshold value '%d'. It must be between 0 and 255", q);
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}
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case PHP_GDIMG_TYPE_JPG:
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(*func_p)(im, ctx, q);
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break;
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case PHP_GDIMG_TYPE_WBM:
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for(i=0; i < gdImageColorsTotal(im); i++) {
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if(gdImageRed(im, i) == 0) break;
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}
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(*func_p)(im, i, ctx);
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break;
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default:
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(*func_p)(im, ctx);
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break;
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}
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#if HAVE_LIBGD204
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ctx->gd_free(ctx);
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#else
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ctx->free(ctx);
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#endif
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if(fp) {
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fflush(fp);
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fclose(fp);
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}
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RETURN_TRUE;
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}
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