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1.1 misho 1: /*
2: +----------------------------------------------------------------------+
3: | PHP Version 5 |
4: +----------------------------------------------------------------------+
5: | Copyright (c) 1997-2012 The PHP Group |
6: +----------------------------------------------------------------------+
7: | This source file is subject to version 3.01 of the PHP license, |
8: | that is bundled with this package in the file LICENSE, and is |
9: | available through the world-wide-web at the following url: |
10: | http://www.php.net/license/3_01.txt |
11: | If you did not receive a copy of the PHP license and are unable to |
12: | obtain it through the world-wide-web, please send a note to |
13: | license@php.net so we can mail you a copy immediately. |
14: +----------------------------------------------------------------------+
15: | Authors: Stanislav Malyshev <stas@php.net> |
16: +----------------------------------------------------------------------+
17: */
18:
19: /* $Id: gd_ctx.c 321634 2012-01-01 13:15:04Z felipe $ */
20:
21: #include "php_gd.h"
22:
23: #define CTX_PUTC(c,ctx) ctx->putC(ctx, c)
24:
25: static void _php_image_output_putc(struct gdIOCtx *ctx, int c)
26: {
27: /* without the following downcast, the write will fail
28: * (i.e., will write a zero byte) for all
29: * big endian architectures:
30: */
31: unsigned char ch = (unsigned char) c;
32: TSRMLS_FETCH();
33: php_write(&ch, 1 TSRMLS_CC);
34: }
35:
36: static int _php_image_output_putbuf(struct gdIOCtx *ctx, const void* buf, int l)
37: {
38: TSRMLS_FETCH();
39: return php_write((void *)buf, l TSRMLS_CC);
40: }
41:
42: static void _php_image_output_ctxfree(struct gdIOCtx *ctx)
43: {
44: if(ctx) {
45: efree(ctx);
46: }
47: }
48:
49: /* {{{ _php_image_output_ctx */
50: static void _php_image_output_ctx(INTERNAL_FUNCTION_PARAMETERS, int image_type, char *tn, void (*func_p)())
51: {
52: zval *imgind;
53: char *file = NULL;
54: int file_len = 0;
55: long quality, basefilter;
56: gdImagePtr im;
57: FILE *fp = NULL;
58: int argc = ZEND_NUM_ARGS();
59: int q = -1, i;
60: int f = -1;
61: gdIOCtx *ctx;
62:
63: /* The third (quality) parameter for Wbmp stands for the threshold when called from image2wbmp().
64: * The third (quality) parameter for Wbmp and Xbm stands for the foreground color index when called
65: * from imagey<type>().
66: */
67:
68: if (image_type == PHP_GDIMG_TYPE_XBM) {
69: if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "rs!|ll", &imgind, &file, &file_len, &quality, &basefilter) == FAILURE) {
70: return;
71: }
72: } else {
73: /* PHP_GDIMG_TYPE_GIF
74: * PHP_GDIMG_TYPE_PNG
75: * PHP_GDIMG_TYPE_JPG
76: * PHP_GDIMG_TYPE_WBM */
77: if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "r|s!ll", &imgind, &file, &file_len, &quality, &basefilter) == FAILURE) {
78: return;
79: }
80: }
81:
82: ZEND_FETCH_RESOURCE(im, gdImagePtr, &imgind, -1, "Image", phpi_get_le_gd());
83:
84: if (argc > 1) {
85: if (argc >= 3) {
86: q = quality; /* or colorindex for foreground of BW images (defaults to black) */
87: if (argc == 4) {
88: f = basefilter;
89: }
90: }
91: }
92:
93: if (argc > 1 && file_len) {
94: if (strlen(file) != file_len) {
95: RETURN_FALSE;
96: }
97: PHP_GD_CHECK_OPEN_BASEDIR(file, "Invalid filename");
98:
99: fp = VCWD_FOPEN(file, "wb");
100: if (!fp) {
101: php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to open '%s' for writing: %s", file, strerror(errno));
102: RETURN_FALSE;
103: }
104:
105: ctx = gdNewFileCtx(fp);
106: } else {
107: ctx = emalloc(sizeof(gdIOCtx));
108: ctx->putC = _php_image_output_putc;
109: ctx->putBuf = _php_image_output_putbuf;
110: #if HAVE_LIBGD204
111: ctx->gd_free = _php_image_output_ctxfree;
112: #else
113: ctx->free = _php_image_output_ctxfree;
114: #endif
115:
116: #if APACHE && defined(CHARSET_EBCDIC)
117: /* XXX this is unlikely to work any more thies@thieso.net */
118: /* This is a binary file already: avoid EBCDIC->ASCII conversion */
119: ap_bsetflag(php3_rqst->connection->client, B_EBCDIC2ASCII, 0);
120: #endif
121: }
122:
123: switch(image_type) {
124: case PHP_GDIMG_CONVERT_WBM:
125: if(q<0||q>255) {
126: php_error_docref(NULL TSRMLS_CC, E_WARNING, "Invalid threshold value '%d'. It must be between 0 and 255", q);
127: }
128: case PHP_GDIMG_TYPE_JPG:
129: (*func_p)(im, ctx, q);
130: break;
131: case PHP_GDIMG_TYPE_PNG:
132: (*func_p)(im, ctx, q, f);
133: break;
134: case PHP_GDIMG_TYPE_XBM:
135: case PHP_GDIMG_TYPE_WBM:
136: if (argc < 3) {
137: for(i=0; i < gdImageColorsTotal(im); i++) {
138: if(!gdImageRed(im, i) && !gdImageGreen(im, i) && !gdImageBlue(im, i)) break;
139: }
140: q = i;
141: }
142: if (image_type == PHP_GDIMG_TYPE_XBM) {
143: (*func_p)(im, file, q, ctx);
144: } else {
145: (*func_p)(im, q, ctx);
146: }
147: break;
148: default:
149: (*func_p)(im, ctx);
150: break;
151: }
152:
153: #if HAVE_LIBGD204
154: ctx->gd_free(ctx);
155: #else
156: ctx->free(ctx);
157: #endif
158:
159: if(fp) {
160: fflush(fp);
161: fclose(fp);
162: }
163:
164: RETURN_TRUE;
165: }
166: /* }}} */
167:
168: /*
169: * Local variables:
170: * tab-width: 4
171: * c-basic-offset: 4
172: * End:
173: * vim600: sw=4 ts=4 fdm=marker
174: * vim<600: sw=4 ts=4
175: */