/ext/gd/gd.c
C | 4256 lines | 3054 code | 701 blank | 501 comment | 590 complexity | 9e81e9c1306da0033bb79831aabab579 MD5 | raw file
Possible License(s): BSD-2-Clause, BSD-3-Clause, MPL-2.0-no-copyleft-exception, LGPL-2.1
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- /*
- +----------------------------------------------------------------------+
- | Copyright (c) The PHP Group |
- +----------------------------------------------------------------------+
- | This source file is subject to version 3.01 of the PHP license, |
- | that is bundled with this package in the file LICENSE, and is |
- | available through the world-wide-web at the following url: |
- | http://www.php.net/license/3_01.txt |
- | If you did not receive a copy of the PHP license and are unable to |
- | obtain it through the world-wide-web, please send a note to |
- | license@php.net so we can mail you a copy immediately. |
- +----------------------------------------------------------------------+
- | Authors: Rasmus Lerdorf <rasmus@php.net> |
- | Stig Bakken <ssb@php.net> |
- | Jim Winstead <jimw@php.net> |
- +----------------------------------------------------------------------+
- */
- /* gd 1.2 is copyright 1994, 1995, Quest Protein Database Center,
- Cold Spring Harbor Labs. */
- /* Note that there is no code from the gd package in this file */
- #ifdef HAVE_CONFIG_H
- #include "config.h"
- #endif
- #include "php.h"
- #include "php_ini.h"
- #include "ext/standard/head.h"
- #include <math.h>
- #include "SAPI.h"
- #include "php_gd.h"
- #include "ext/standard/info.h"
- #include "php_open_temporary_file.h"
- #include "zend_object_handlers.h"
- #include "zend_interfaces.h"
- #ifdef HAVE_SYS_WAIT_H
- # include <sys/wait.h>
- #endif
- #ifdef HAVE_UNISTD_H
- # include <unistd.h>
- #endif
- #ifdef PHP_WIN32
- # include <io.h>
- # include <fcntl.h>
- # include <windows.h>
- # include <Winuser.h>
- # include <Wingdi.h>
- #endif
- #if defined(HAVE_GD_XPM) && defined(HAVE_GD_BUNDLED)
- # include <X11/xpm.h>
- #endif
- #include "gd_compat.h"
- static int le_gd_font;
- #include <gd.h>
- #include <gd_errors.h>
- #include <gdfontt.h> /* 1 Tiny font */
- #include <gdfonts.h> /* 2 Small font */
- #include <gdfontmb.h> /* 3 Medium bold font */
- #include <gdfontl.h> /* 4 Large font */
- #include <gdfontg.h> /* 5 Giant font */
- #if defined(HAVE_GD_FREETYPE) && defined(HAVE_GD_BUNDLED)
- # include <ft2build.h>
- # include FT_FREETYPE_H
- #endif
- #if defined(HAVE_GD_XPM) && defined(HAVE_GD_BUNDLED)
- # include "X11/xpm.h"
- #endif
- #ifndef M_PI
- #define M_PI 3.14159265358979323846
- #endif
- /* workaround typo in system libgd 2.3.0 */
- #if defined(GD_FLIP_HORINZONTAL) && !defined(GD_FLIP_HORIZONTAL)
- #define GD_FLIP_HORIZONTAL GD_FLIP_HORINZONTAL
- #endif
- #ifdef HAVE_GD_FREETYPE
- static void php_imagettftext_common(INTERNAL_FUNCTION_PARAMETERS, int, int);
- #endif
- #include "gd_arginfo.h"
- /* as it is not really public, duplicate declaration here to avoid
- pointless warnings */
- int overflow2(int a, int b);
- /* Section Filters Declarations */
- /* IMPORTANT NOTE FOR NEW FILTER
- * Do not forget to update:
- * IMAGE_FILTER_MAX: define the last filter index
- * IMAGE_FILTER_MAX_ARGS: define the biggest amount of arguments
- * image_filter array in PHP_FUNCTION(imagefilter)
- * */
- #define IMAGE_FILTER_NEGATE 0
- #define IMAGE_FILTER_GRAYSCALE 1
- #define IMAGE_FILTER_BRIGHTNESS 2
- #define IMAGE_FILTER_CONTRAST 3
- #define IMAGE_FILTER_COLORIZE 4
- #define IMAGE_FILTER_EDGEDETECT 5
- #define IMAGE_FILTER_EMBOSS 6
- #define IMAGE_FILTER_GAUSSIAN_BLUR 7
- #define IMAGE_FILTER_SELECTIVE_BLUR 8
- #define IMAGE_FILTER_MEAN_REMOVAL 9
- #define IMAGE_FILTER_SMOOTH 10
- #define IMAGE_FILTER_PIXELATE 11
- #define IMAGE_FILTER_SCATTER 12
- #define IMAGE_FILTER_MAX 12
- #define IMAGE_FILTER_MAX_ARGS 6
- static void php_image_filter_negate(INTERNAL_FUNCTION_PARAMETERS);
- static void php_image_filter_grayscale(INTERNAL_FUNCTION_PARAMETERS);
- static void php_image_filter_brightness(INTERNAL_FUNCTION_PARAMETERS);
- static void php_image_filter_contrast(INTERNAL_FUNCTION_PARAMETERS);
- static void php_image_filter_colorize(INTERNAL_FUNCTION_PARAMETERS);
- static void php_image_filter_edgedetect(INTERNAL_FUNCTION_PARAMETERS);
- static void php_image_filter_emboss(INTERNAL_FUNCTION_PARAMETERS);
- static void php_image_filter_gaussian_blur(INTERNAL_FUNCTION_PARAMETERS);
- static void php_image_filter_selective_blur(INTERNAL_FUNCTION_PARAMETERS);
- static void php_image_filter_mean_removal(INTERNAL_FUNCTION_PARAMETERS);
- static void php_image_filter_smooth(INTERNAL_FUNCTION_PARAMETERS);
- static void php_image_filter_pixelate(INTERNAL_FUNCTION_PARAMETERS);
- static void php_image_filter_scatter(INTERNAL_FUNCTION_PARAMETERS);
- /* End Section filters declarations */
- static gdImagePtr _php_image_create_from_string(zend_string *Data, char *tn, gdImagePtr (*ioctx_func_p)());
- static void _php_image_create_from(INTERNAL_FUNCTION_PARAMETERS, int image_type, char *tn, gdImagePtr (*func_p)(), gdImagePtr (*ioctx_func_p)());
- static void _php_image_output(INTERNAL_FUNCTION_PARAMETERS, int image_type, char *tn, void (*func_p)());
- static int _php_image_type(char data[12]);
- /* output streaming (formerly gd_ctx.c) */
- static void _php_image_output_ctx(INTERNAL_FUNCTION_PARAMETERS, int image_type, char *tn, void (*func_p)());
- /*********************************************************
- *
- * GD Object Representation
- *
- ********************************************************/
- zend_class_entry *gd_image_ce;
- typedef struct _gd_ext_image_object {
- gdImagePtr image;
- zend_object std;
- } php_gd_image_object;
- static zend_object_handlers php_gd_image_object_handlers;
- static const zend_function_entry gd_image_object_methods[] = {
- PHP_FE_END
- };
- static zend_function *php_gd_image_object_get_constructor(zend_object *object)
- {
- zend_throw_error(NULL, "You cannot initialize a GdImage object except through helper functions");
- return NULL;
- }
- /**
- * Returns the underlying php_gd_image_object from a zend_object
- */
- static zend_always_inline php_gd_image_object* php_gd_exgdimage_from_zobj_p(zend_object* obj)
- {
- return (php_gd_image_object *) ((char *) (obj) - XtOffsetOf(php_gd_image_object, std));
- }
- /**
- * Converts an extension GdImage instance contained within a zval into the gdImagePtr
- * for use with library APIs
- */
- static zend_always_inline gdImagePtr php_gd_libgdimageptr_from_zval_p(zval* zp)
- {
- return php_gd_exgdimage_from_zobj_p(Z_OBJ_P(zp))->image;
- }
- zend_object *php_gd_image_object_create(zend_class_entry *class_type)
- {
- size_t block_len = sizeof(php_gd_image_object) + zend_object_properties_size(class_type);
- php_gd_image_object *intern = emalloc(block_len);
- memset(intern, 0, block_len);
- zend_object_std_init(&intern->std, class_type);
- object_properties_init(&intern->std, class_type);
- intern->std.handlers = &php_gd_image_object_handlers;
- return &intern->std;
- }
- static void php_gd_image_object_free(zend_object *intern)
- {
- php_gd_image_object *img_obj_ptr = php_gd_exgdimage_from_zobj_p(intern);
- gdImageDestroy(img_obj_ptr->image);
- img_obj_ptr->image = NULL;
- zend_object_std_dtor(intern);
- }
- /**
- * Creates a new GdImage object wrapping the gdImagePtr and attaches it
- * to the zval (usually return_value).
- *
- * This function must only be called once per valid gdImagePtr
- */
- void php_gd_assign_libgdimageptr_as_extgdimage(zval *val, gdImagePtr image)
- {
- object_init_ex(val, gd_image_ce);
- php_gd_exgdimage_from_zobj_p(Z_OBJ_P(val))->image = image;
- }
- static void php_gd_object_minit_helper()
- {
- zend_class_entry ce;
- INIT_CLASS_ENTRY(ce, "GdImage", gd_image_object_methods);
- gd_image_ce = zend_register_internal_class(&ce);
- gd_image_ce->ce_flags |= ZEND_ACC_FINAL;
- gd_image_ce->create_object = php_gd_image_object_create;
- gd_image_ce->serialize = zend_class_serialize_deny;
- gd_image_ce->unserialize = zend_class_unserialize_deny;
- /* setting up the object handlers for the GdImage class */
- memcpy(&php_gd_image_object_handlers, &std_object_handlers, sizeof(zend_object_handlers));
- php_gd_image_object_handlers.clone_obj = NULL;
- php_gd_image_object_handlers.free_obj = php_gd_image_object_free;
- php_gd_image_object_handlers.get_constructor = php_gd_image_object_get_constructor;
- php_gd_image_object_handlers.offset = XtOffsetOf(php_gd_image_object, std);
- }
- /*********************************************************
- *
- * Extension Implementation
- *
- ********************************************************/
- zend_module_entry gd_module_entry = {
- STANDARD_MODULE_HEADER,
- "gd",
- ext_functions,
- PHP_MINIT(gd),
- PHP_MSHUTDOWN(gd),
- NULL,
- PHP_RSHUTDOWN(gd),
- PHP_MINFO(gd),
- PHP_GD_VERSION,
- STANDARD_MODULE_PROPERTIES
- };
- #ifdef COMPILE_DL_GD
- ZEND_GET_MODULE(gd)
- #endif
- /* {{{ PHP_INI_BEGIN */
- PHP_INI_BEGIN()
- PHP_INI_ENTRY("gd.jpeg_ignore_warning", "1", PHP_INI_ALL, NULL)
- PHP_INI_END()
- /* }}} */
- /* {{{ php_free_gd_font
- */
- static void php_free_gd_font(zend_resource *rsrc)
- {
- gdFontPtr fp = (gdFontPtr) rsrc->ptr;
- if (fp->data) {
- efree(fp->data);
- }
- efree(fp);
- }
- /* }}} */
- /* {{{ php_gd_error_method
- */
- void php_gd_error_method(int type, const char *format, va_list args)
- {
- switch (type) {
- #ifndef PHP_WIN32
- case GD_DEBUG:
- case GD_INFO:
- #endif
- case GD_NOTICE:
- type = E_NOTICE;
- break;
- case GD_WARNING:
- type = E_WARNING;
- break;
- default:
- type = E_ERROR;
- }
- php_verror(NULL, "", type, format, args);
- }
- /* }}} */
- /* {{{ PHP_MINIT_FUNCTION
- */
- PHP_MINIT_FUNCTION(gd)
- {
- le_gd_font = zend_register_list_destructors_ex(php_free_gd_font, NULL, "gd font", module_number);
- php_gd_object_minit_helper();
- #if defined(HAVE_GD_FREETYPE) && defined(HAVE_GD_BUNDLED)
- gdFontCacheMutexSetup();
- #endif
- gdSetErrorMethod(php_gd_error_method);
- REGISTER_INI_ENTRIES();
- REGISTER_LONG_CONSTANT("IMG_GIF", PHP_IMG_GIF, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_JPG", PHP_IMG_JPG, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_JPEG", PHP_IMG_JPEG, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_PNG", PHP_IMG_PNG, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_WBMP", PHP_IMG_WBMP, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_XPM", PHP_IMG_XPM, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_WEBP", PHP_IMG_WEBP, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_BMP", PHP_IMG_BMP, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_TGA", PHP_IMG_TGA, CONST_CS | CONST_PERSISTENT);
- /* special colours for gd */
- REGISTER_LONG_CONSTANT("IMG_COLOR_TILED", gdTiled, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_COLOR_STYLED", gdStyled, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_COLOR_BRUSHED", gdBrushed, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_COLOR_STYLEDBRUSHED", gdStyledBrushed, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_COLOR_TRANSPARENT", gdTransparent, CONST_CS | CONST_PERSISTENT);
- /* for imagefilledarc */
- REGISTER_LONG_CONSTANT("IMG_ARC_ROUNDED", gdArc, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_ARC_PIE", gdPie, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_ARC_CHORD", gdChord, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_ARC_NOFILL", gdNoFill, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_ARC_EDGED", gdEdged, CONST_CS | CONST_PERSISTENT);
- /* GD2 image format types */
- REGISTER_LONG_CONSTANT("IMG_GD2_RAW", GD2_FMT_RAW, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_GD2_COMPRESSED", GD2_FMT_COMPRESSED, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_FLIP_HORIZONTAL", GD_FLIP_HORIZONTAL, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_FLIP_VERTICAL", GD_FLIP_VERTICAL, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_FLIP_BOTH", GD_FLIP_BOTH, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_EFFECT_REPLACE", gdEffectReplace, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_EFFECT_ALPHABLEND", gdEffectAlphaBlend, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_EFFECT_NORMAL", gdEffectNormal, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_EFFECT_OVERLAY", gdEffectOverlay, CONST_CS | CONST_PERSISTENT);
- #ifdef gdEffectMultiply
- REGISTER_LONG_CONSTANT("IMG_EFFECT_MULTIPLY", gdEffectMultiply, CONST_CS | CONST_PERSISTENT);
- #endif
- REGISTER_LONG_CONSTANT("IMG_CROP_DEFAULT", GD_CROP_DEFAULT, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_CROP_TRANSPARENT", GD_CROP_TRANSPARENT, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_CROP_BLACK", GD_CROP_BLACK, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_CROP_WHITE", GD_CROP_WHITE, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_CROP_SIDES", GD_CROP_SIDES, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_CROP_THRESHOLD", GD_CROP_THRESHOLD, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_BELL", GD_BELL, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_BESSEL", GD_BESSEL, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_BILINEAR_FIXED", GD_BILINEAR_FIXED, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_BICUBIC", GD_BICUBIC, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_BICUBIC_FIXED", GD_BICUBIC_FIXED, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_BLACKMAN", GD_BLACKMAN, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_BOX", GD_BOX, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_BSPLINE", GD_BSPLINE, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_CATMULLROM", GD_CATMULLROM, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_GAUSSIAN", GD_GAUSSIAN, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_GENERALIZED_CUBIC", GD_GENERALIZED_CUBIC, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_HERMITE", GD_HERMITE, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_HAMMING", GD_HAMMING, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_HANNING", GD_HANNING, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_MITCHELL", GD_MITCHELL, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_POWER", GD_POWER, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_QUADRATIC", GD_QUADRATIC, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_SINC", GD_SINC, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_NEAREST_NEIGHBOUR", GD_NEAREST_NEIGHBOUR, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_WEIGHTED4", GD_WEIGHTED4, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_TRIANGLE", GD_TRIANGLE, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_AFFINE_TRANSLATE", GD_AFFINE_TRANSLATE, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_AFFINE_SCALE", GD_AFFINE_SCALE, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_AFFINE_ROTATE", GD_AFFINE_ROTATE, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_AFFINE_SHEAR_HORIZONTAL", GD_AFFINE_SHEAR_HORIZONTAL, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_AFFINE_SHEAR_VERTICAL", GD_AFFINE_SHEAR_VERTICAL, CONST_CS | CONST_PERSISTENT);
- #if defined(HAVE_GD_BUNDLED)
- REGISTER_LONG_CONSTANT("GD_BUNDLED", 1, CONST_CS | CONST_PERSISTENT);
- #else
- REGISTER_LONG_CONSTANT("GD_BUNDLED", 0, CONST_CS | CONST_PERSISTENT);
- #endif
- /* Section Filters */
- REGISTER_LONG_CONSTANT("IMG_FILTER_NEGATE", IMAGE_FILTER_NEGATE, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_FILTER_GRAYSCALE", IMAGE_FILTER_GRAYSCALE, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_FILTER_BRIGHTNESS", IMAGE_FILTER_BRIGHTNESS, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_FILTER_CONTRAST", IMAGE_FILTER_CONTRAST, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_FILTER_COLORIZE", IMAGE_FILTER_COLORIZE, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_FILTER_EDGEDETECT", IMAGE_FILTER_EDGEDETECT, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_FILTER_GAUSSIAN_BLUR", IMAGE_FILTER_GAUSSIAN_BLUR, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_FILTER_SELECTIVE_BLUR", IMAGE_FILTER_SELECTIVE_BLUR, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_FILTER_EMBOSS", IMAGE_FILTER_EMBOSS, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_FILTER_MEAN_REMOVAL", IMAGE_FILTER_MEAN_REMOVAL, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_FILTER_SMOOTH", IMAGE_FILTER_SMOOTH, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_FILTER_PIXELATE", IMAGE_FILTER_PIXELATE, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("IMG_FILTER_SCATTER", IMAGE_FILTER_SCATTER, CONST_CS | CONST_PERSISTENT);
- /* End Section Filters */
- #ifdef GD_VERSION_STRING
- REGISTER_STRING_CONSTANT("GD_VERSION", GD_VERSION_STRING, CONST_CS | CONST_PERSISTENT);
- #endif
- #if defined(GD_MAJOR_VERSION) && defined(GD_MINOR_VERSION) && defined(GD_RELEASE_VERSION) && defined(GD_EXTRA_VERSION)
- REGISTER_LONG_CONSTANT("GD_MAJOR_VERSION", GD_MAJOR_VERSION, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("GD_MINOR_VERSION", GD_MINOR_VERSION, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("GD_RELEASE_VERSION", GD_RELEASE_VERSION, CONST_CS | CONST_PERSISTENT);
- REGISTER_STRING_CONSTANT("GD_EXTRA_VERSION", GD_EXTRA_VERSION, CONST_CS | CONST_PERSISTENT);
- #endif
- #ifdef HAVE_GD_PNG
- /*
- * cannot include #include "png.h"
- * /usr/include/pngconf.h:310:2: error: #error png.h already includes setjmp.h with some additional fixup.
- * as error, use the values for now...
- */
- REGISTER_LONG_CONSTANT("PNG_NO_FILTER", 0x00, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("PNG_FILTER_NONE", 0x08, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("PNG_FILTER_SUB", 0x10, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("PNG_FILTER_UP", 0x20, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("PNG_FILTER_AVG", 0x40, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("PNG_FILTER_PAETH", 0x80, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("PNG_ALL_FILTERS", 0x08 | 0x10 | 0x20 | 0x40 | 0x80, CONST_CS | CONST_PERSISTENT);
- #endif
- return SUCCESS;
- }
- /* }}} */
- /* {{{ PHP_MSHUTDOWN_FUNCTION
- */
- PHP_MSHUTDOWN_FUNCTION(gd)
- {
- #if defined(HAVE_GD_FREETYPE) && defined(HAVE_GD_BUNDLED)
- gdFontCacheMutexShutdown();
- #endif
- UNREGISTER_INI_ENTRIES();
- return SUCCESS;
- }
- /* }}} */
- /* {{{ PHP_RSHUTDOWN_FUNCTION
- */
- PHP_RSHUTDOWN_FUNCTION(gd)
- {
- #ifdef HAVE_GD_FREETYPE
- gdFontCacheShutdown();
- #endif
- return SUCCESS;
- }
- /* }}} */
- #if defined(HAVE_GD_BUNDLED)
- #define PHP_GD_VERSION_STRING "bundled (2.1.0 compatible)"
- #else
- # define PHP_GD_VERSION_STRING GD_VERSION_STRING
- #endif
- /* {{{ PHP_MINFO_FUNCTION
- */
- PHP_MINFO_FUNCTION(gd)
- {
- php_info_print_table_start();
- php_info_print_table_row(2, "GD Support", "enabled");
- /* need to use a PHPAPI function here because it is external module in windows */
- #if defined(HAVE_GD_BUNDLED)
- php_info_print_table_row(2, "GD Version", PHP_GD_VERSION_STRING);
- #else
- php_info_print_table_row(2, "GD headers Version", PHP_GD_VERSION_STRING);
- #if defined(HAVE_GD_LIBVERSION)
- php_info_print_table_row(2, "GD library Version", gdVersionString());
- #endif
- #endif
- #ifdef HAVE_GD_FREETYPE
- php_info_print_table_row(2, "FreeType Support", "enabled");
- php_info_print_table_row(2, "FreeType Linkage", "with freetype");
- #ifdef HAVE_GD_BUNDLED
- {
- char tmp[256];
- #ifdef FREETYPE_PATCH
- snprintf(tmp, sizeof(tmp), "%d.%d.%d", FREETYPE_MAJOR, FREETYPE_MINOR, FREETYPE_PATCH);
- #elif defined(FREETYPE_MAJOR)
- snprintf(tmp, sizeof(tmp), "%d.%d", FREETYPE_MAJOR, FREETYPE_MINOR);
- #else
- snprintf(tmp, sizeof(tmp), "1.x");
- #endif
- php_info_print_table_row(2, "FreeType Version", tmp);
- }
- #endif
- #endif
- php_info_print_table_row(2, "GIF Read Support", "enabled");
- php_info_print_table_row(2, "GIF Create Support", "enabled");
- #ifdef HAVE_GD_JPG
- {
- php_info_print_table_row(2, "JPEG Support", "enabled");
- #if defined(HAVE_GD_BUNDLED)
- php_info_print_table_row(2, "libJPEG Version", gdJpegGetVersionString());
- #endif
- }
- #endif
- #ifdef HAVE_GD_PNG
- php_info_print_table_row(2, "PNG Support", "enabled");
- #if defined(HAVE_GD_BUNDLED)
- php_info_print_table_row(2, "libPNG Version", gdPngGetVersionString());
- #endif
- #endif
- php_info_print_table_row(2, "WBMP Support", "enabled");
- #if defined(HAVE_GD_XPM)
- php_info_print_table_row(2, "XPM Support", "enabled");
- #if defined(HAVE_GD_BUNDLED)
- {
- char tmp[12];
- snprintf(tmp, sizeof(tmp), "%d", XpmLibraryVersion());
- php_info_print_table_row(2, "libXpm Version", tmp);
- }
- #endif
- #endif
- php_info_print_table_row(2, "XBM Support", "enabled");
- #if defined(USE_GD_JISX0208)
- php_info_print_table_row(2, "JIS-mapped Japanese Font Support", "enabled");
- #endif
- #ifdef HAVE_GD_WEBP
- php_info_print_table_row(2, "WebP Support", "enabled");
- #endif
- #ifdef HAVE_GD_BMP
- php_info_print_table_row(2, "BMP Support", "enabled");
- #endif
- #ifdef HAVE_GD_TGA
- php_info_print_table_row(2, "TGA Read Support", "enabled");
- #endif
- php_info_print_table_end();
- DISPLAY_INI_ENTRIES();
- }
- /* }}} */
- /* {{{ proto array gd_info()
- */
- PHP_FUNCTION(gd_info)
- {
- if (zend_parse_parameters_none() == FAILURE) {
- RETURN_THROWS();
- }
- array_init(return_value);
- add_assoc_string(return_value, "GD Version", PHP_GD_VERSION_STRING);
- #ifdef HAVE_GD_FREETYPE
- add_assoc_bool(return_value, "FreeType Support", 1);
- add_assoc_string(return_value, "FreeType Linkage", "with freetype");
- #else
- add_assoc_bool(return_value, "FreeType Support", 0);
- #endif
- add_assoc_bool(return_value, "GIF Read Support", 1);
- add_assoc_bool(return_value, "GIF Create Support", 1);
- #ifdef HAVE_GD_JPG
- add_assoc_bool(return_value, "JPEG Support", 1);
- #else
- add_assoc_bool(return_value, "JPEG Support", 0);
- #endif
- #ifdef HAVE_GD_PNG
- add_assoc_bool(return_value, "PNG Support", 1);
- #else
- add_assoc_bool(return_value, "PNG Support", 0);
- #endif
- add_assoc_bool(return_value, "WBMP Support", 1);
- #if defined(HAVE_GD_XPM)
- add_assoc_bool(return_value, "XPM Support", 1);
- #else
- add_assoc_bool(return_value, "XPM Support", 0);
- #endif
- add_assoc_bool(return_value, "XBM Support", 1);
- #ifdef HAVE_GD_WEBP
- add_assoc_bool(return_value, "WebP Support", 1);
- #else
- add_assoc_bool(return_value, "WebP Support", 0);
- #endif
- #ifdef HAVE_GD_BMP
- add_assoc_bool(return_value, "BMP Support", 1);
- #else
- add_assoc_bool(return_value, "BMP Support", 0);
- #endif
- #ifdef HAVE_GD_TGA
- add_assoc_bool(return_value, "TGA Read Support", 1);
- #else
- add_assoc_bool(return_value, "TGA Read Support", 0);
- #endif
- #if defined(USE_GD_JISX0208)
- add_assoc_bool(return_value, "JIS-mapped Japanese Font Support", 1);
- #else
- add_assoc_bool(return_value, "JIS-mapped Japanese Font Support", 0);
- #endif
- }
- /* }}} */
- #define FLIPWORD(a) (((a & 0xff000000) >> 24) | ((a & 0x00ff0000) >> 8) | ((a & 0x0000ff00) << 8) | ((a & 0x000000ff) << 24))
- /* {{{ proto int imageloadfont(string filename)
- Load a new font */
- PHP_FUNCTION(imageloadfont)
- {
- zval *ind;
- zend_string *file;
- int hdr_size = sizeof(gdFont) - sizeof(char *);
- int body_size, n = 0, b, i, body_size_check;
- gdFontPtr font;
- php_stream *stream;
- if (zend_parse_parameters(ZEND_NUM_ARGS(), "P", &file) == FAILURE) {
- RETURN_THROWS();
- }
- stream = php_stream_open_wrapper(ZSTR_VAL(file), "rb", IGNORE_PATH | IGNORE_URL_WIN | REPORT_ERRORS, NULL);
- if (stream == NULL) {
- RETURN_FALSE;
- }
- /* Only supports a architecture-dependent binary dump format
- * at the moment.
- * The file format is like this on machines with 32-byte integers:
- *
- * byte 0-3: (int) number of characters in the font
- * byte 4-7: (int) value of first character in the font (often 32, space)
- * byte 8-11: (int) pixel width of each character
- * byte 12-15: (int) pixel height of each character
- * bytes 16-: (char) array with character data, one byte per pixel
- * in each character, for a total of
- * (nchars*width*height) bytes.
- */
- font = (gdFontPtr) emalloc(sizeof(gdFont));
- b = 0;
- while (b < hdr_size && (n = php_stream_read(stream, (char*)&font[b], hdr_size - b)) > 0) {
- b += n;
- }
- if (n <= 0) {
- efree(font);
- if (php_stream_eof(stream)) {
- php_error_docref(NULL, E_WARNING, "End of file while reading header");
- } else {
- php_error_docref(NULL, E_WARNING, "Error while reading header");
- }
- php_stream_close(stream);
- RETURN_FALSE;
- }
- i = php_stream_tell(stream);
- php_stream_seek(stream, 0, SEEK_END);
- body_size_check = php_stream_tell(stream) - hdr_size;
- php_stream_seek(stream, i, SEEK_SET);
- if (overflow2(font->nchars, font->h) || overflow2(font->nchars * font->h, font->w )) {
- php_error_docref(NULL, E_WARNING, "Error reading font, invalid font header");
- efree(font);
- php_stream_close(stream);
- RETURN_FALSE;
- }
- body_size = font->w * font->h * font->nchars;
- if (body_size != body_size_check) {
- font->w = FLIPWORD(font->w);
- font->h = FLIPWORD(font->h);
- font->nchars = FLIPWORD(font->nchars);
- body_size = font->w * font->h * font->nchars;
- }
- if (body_size != body_size_check) {
- php_error_docref(NULL, E_WARNING, "Error reading font");
- efree(font);
- php_stream_close(stream);
- RETURN_FALSE;
- }
- font->data = emalloc(body_size);
- b = 0;
- while (b < body_size && (n = php_stream_read(stream, &font->data[b], body_size - b)) > 0) {
- b += n;
- }
- if (n <= 0) {
- efree(font->data);
- efree(font);
- if (php_stream_eof(stream)) {
- php_error_docref(NULL, E_WARNING, "End of file while reading body");
- } else {
- php_error_docref(NULL, E_WARNING, "Error while reading body");
- }
- php_stream_close(stream);
- RETURN_FALSE;
- }
- php_stream_close(stream);
- ind = zend_list_insert(font, le_gd_font);
- /* Adding 5 to the font index so we will never have font indices
- * that overlap with the old fonts (with indices 1-5). The first
- * list index given out is always 1.
- */
- RETURN_LONG(Z_RES_HANDLE_P(ind) + 5);
- }
- /* }}} */
- /* {{{ proto bool imagesetstyle(resource im, array styles)
- Set the line drawing styles for use with imageline and IMG_COLOR_STYLED. */
- PHP_FUNCTION(imagesetstyle)
- {
- zval *IM, *styles, *item;
- gdImagePtr im;
- int *stylearr;
- int index = 0;
- uint32_t num_styles;
- if (zend_parse_parameters(ZEND_NUM_ARGS(), "Oa", &IM, gd_image_ce, &styles) == FAILURE) {
- RETURN_THROWS();
- }
- im = php_gd_libgdimageptr_from_zval_p(IM);
- num_styles = zend_hash_num_elements(Z_ARRVAL_P(styles));
- if (num_styles == 0) {
- zend_argument_value_error(2, "cannot be empty");
- RETURN_THROWS();
- }
- /* copy the style values in the stylearr */
- stylearr = safe_emalloc(sizeof(int), num_styles, 0);
- ZEND_HASH_FOREACH_VAL(Z_ARRVAL_P(styles), item) {
- stylearr[index++] = zval_get_long(item);
- } ZEND_HASH_FOREACH_END();
- gdImageSetStyle(im, stylearr, index);
- efree(stylearr);
- RETURN_TRUE;
- }
- /* }}} */
- /* {{{ proto resource imagecreatetruecolor(int x_size, int y_size)
- Create a new true color image */
- PHP_FUNCTION(imagecreatetruecolor)
- {
- zend_long x_size, y_size;
- gdImagePtr im;
- if (zend_parse_parameters(ZEND_NUM_ARGS(), "ll", &x_size, &y_size) == FAILURE) {
- RETURN_THROWS();
- }
- if (x_size <= 0 || x_size >= INT_MAX) {
- zend_argument_value_error(1, "must be greater than 0");
- RETURN_THROWS();
- }
- if (y_size <= 0 || y_size >= INT_MAX) {
- zend_argument_value_error(2, "must be greater than 0");
- RETURN_THROWS();
- }
- im = gdImageCreateTrueColor(x_size, y_size);
- if (!im) {
- RETURN_FALSE;
- }
- php_gd_assign_libgdimageptr_as_extgdimage(return_value, im);
- }
- /* }}} */
- /* {{{ proto bool imageistruecolor(resource im)
- return true if the image uses truecolor */
- PHP_FUNCTION(imageistruecolor)
- {
- zval *IM;
- gdImagePtr im;
- if (zend_parse_parameters(ZEND_NUM_ARGS(), "O", &IM, gd_image_ce) == FAILURE) {
- RETURN_THROWS();
- }
- im = php_gd_libgdimageptr_from_zval_p(IM);
- RETURN_BOOL(im->trueColor);
- }
- /* }}} */
- /* {{{ proto void imagetruecolortopalette(resource im, bool ditherFlag, int colorsWanted)
- Convert a true color image to a palette based image with a number of colors, optionally using dithering. */
- PHP_FUNCTION(imagetruecolortopalette)
- {
- zval *IM;
- zend_bool dither;
- zend_long ncolors;
- gdImagePtr im;
- if (zend_parse_parameters(ZEND_NUM_ARGS(), "Obl", &IM, gd_image_ce, &dither, &ncolors) == FAILURE) {
- RETURN_THROWS();
- }
- im = php_gd_libgdimageptr_from_zval_p(IM);
- if (ncolors <= 0 || ZEND_LONG_INT_OVFL(ncolors)) {
- zend_argument_value_error(3, "must be greater than 0 and less than %d", INT_MAX);
- RETURN_THROWS();
- }
- if (gdImageTrueColorToPalette(im, dither, (int)ncolors)) {
- RETURN_TRUE;
- } else {
- php_error_docref(NULL, E_WARNING, "Couldn't convert to palette");
- RETURN_FALSE;
- }
- }
- /* }}} */
- /* {{{ proto void imagepalettetotruecolor(resource im)
- Convert a palette based image to a true color image. */
- PHP_FUNCTION(imagepalettetotruecolor)
- {
- zval *IM;
- gdImagePtr im;
- if (zend_parse_parameters(ZEND_NUM_ARGS(), "O", &IM, gd_image_ce) == FAILURE) {
- RETURN_THROWS();
- }
- im = php_gd_libgdimageptr_from_zval_p(IM);
- if (gdImagePaletteToTrueColor(im) == 0) {
- RETURN_FALSE;
- }
- RETURN_TRUE;
- }
- /* }}} */
- /* {{{ proto bool imagecolormatch(resource im1, resource im2)
- Makes the colors of the palette version of an image more closely match the true color version */
- PHP_FUNCTION(imagecolormatch)
- {
- zval *IM1, *IM2;
- gdImagePtr im1, im2;
- int result;
- if (zend_parse_parameters(ZEND_NUM_ARGS(), "OO", &IM1, gd_image_ce, &IM2, gd_image_ce) == FAILURE) {
- RETURN_THROWS();
- }
- im1 = php_gd_libgdimageptr_from_zval_p(IM1);
- im2 = php_gd_libgdimageptr_from_zval_p(IM2);
- result = gdImageColorMatch(im1, im2);
- switch (result) {
- case -1:
- php_error_docref(NULL, E_WARNING, "Image1 must be TrueColor" );
- RETURN_FALSE;
- break;
- case -2:
- php_error_docref(NULL, E_WARNING, "Image2 must be Palette" );
- RETURN_FALSE;
- break;
- case -3:
- php_error_docref(NULL, E_WARNING, "Image1 and Image2 must be the same size" );
- RETURN_FALSE;
- break;
- case -4:
- php_error_docref(NULL, E_WARNING, "Image2 must have at least one color" );
- RETURN_FALSE;
- break;
- }
- RETURN_TRUE;
- }
- /* }}} */
- /* {{{ proto bool imagesetthickness(resource im, int thickness)
- Set line thickness for drawing lines, ellipses, rectangles, polygons etc. */
- PHP_FUNCTION(imagesetthickness)
- {
- zval *IM;
- zend_long thick;
- gdImagePtr im;
- if (zend_parse_parameters(ZEND_NUM_ARGS(), "Ol", &IM, gd_image_ce, &thick) == FAILURE) {
- RETURN_THROWS();
- }
- im = php_gd_libgdimageptr_from_zval_p(IM);
- gdImageSetThickness(im, thick);
- RETURN_TRUE;
- }
- /* }}} */
- /* {{{ proto bool imagefilledellipse(resource im, int cx, int cy, int w, int h, int color)
- Draw an ellipse */
- PHP_FUNCTION(imagefilledellipse)
- {
- zval *IM;
- zend_long cx, cy, w, h, color;
- gdImagePtr im;
- if (zend_parse_parameters(ZEND_NUM_ARGS(), "Olllll", &IM, gd_image_ce, &cx, &cy, &w, &h, &color) == FAILURE) {
- RETURN_THROWS();
- }
- im = php_gd_libgdimageptr_from_zval_p(IM);
- gdImageFilledEllipse(im, cx, cy, w, h, color);
- RETURN_TRUE;
- }
- /* }}} */
- /* {{{ proto bool imagefilledarc(resource im, int cx, int cy, int w, int h, int s, int e, int col, int style)
- Draw a filled partial ellipse */
- PHP_FUNCTION(imagefilledarc)
- {
- zval *IM;
- zend_long cx, cy, w, h, ST, E, col, style;
- gdImagePtr im;
- int e, st;
- if (zend_parse_parameters(ZEND_NUM_ARGS(), "Ollllllll", &IM, gd_image_ce, &cx, &cy, &w, &h, &ST, &E, &col, &style) == FAILURE) {
- RETURN_THROWS();
- }
- im = php_gd_libgdimageptr_from_zval_p(IM);
- e = E;
- if (e < 0) {
- e %= 360;
- }
- st = ST;
- if (st < 0) {
- st %= 360;
- }
- gdImageFilledArc(im, cx, cy, w, h, st, e, col, style);
- RETURN_TRUE;
- }
- /* }}} */
- /* {{{ proto bool imagealphablending(resource im, bool on)
- Turn alpha blending mode on or off for the given image */
- PHP_FUNCTION(imagealphablending)
- {
- zval *IM;
- zend_bool blend;
- gdImagePtr im;
- if (zend_parse_parameters(ZEND_NUM_ARGS(), "Ob", &IM, gd_image_ce, &blend) == FAILURE) {
- RETURN_THROWS();
- }
- im = php_gd_libgdimageptr_from_zval_p(IM);
- gdImageAlphaBlending(im, blend);
- RETURN_TRUE;
- }
- /* }}} */
- /* {{{ proto bool imagesavealpha(resource im, bool on)
- Include alpha channel to a saved image */
- PHP_FUNCTION(imagesavealpha)
- {
- zval *IM;
- zend_bool save;
- gdImagePtr im;
- if (zend_parse_parameters(ZEND_NUM_ARGS(), "Ob", &IM, gd_image_ce, &save) == FAILURE) {
- RETURN_THROWS();
- }
- im = php_gd_libgdimageptr_from_zval_p(IM);
- gdImageSaveAlpha(im, save);
- RETURN_TRUE;
- }
- /* }}} */
- /* {{{ proto bool imagelayereffect(resource im, int effect)
- Set the alpha blending flag to use the bundled libgd layering effects */
- PHP_FUNCTION(imagelayereffect)
- {
- zval *IM;
- zend_long effect;
- gdImagePtr im;
- if (zend_parse_parameters(ZEND_NUM_ARGS(), "Ol", &IM, gd_image_ce, &effect) == FAILURE) {
- RETURN_THROWS();
- }
- im = php_gd_libgdimageptr_from_zval_p(IM);
- gdImageAlphaBlending(im, effect);
- RETURN_TRUE;
- }
- /* }}} */
- #define CHECK_RGBA_RANGE(component, name, argument_number) \
- if (component < 0 || component > gd##name##Max) { \
- zend_argument_value_error(argument_number, "must be between 0 and %d (inclusive)", gd##name##Max); \
- RETURN_THROWS(); \
- }
- /* {{{ proto int imagecolorallocatealpha(resource im, int red, int green, int blue, int alpha)
- Allocate a color with an alpha level. Works for true color and palette based images */
- PHP_FUNCTION(imagecolorallocatealpha)
- {
- zval *IM;
- zend_long red, green, blue, alpha;
- gdImagePtr im;
- int ct = (-1);
- if (zend_parse_parameters(ZEND_NUM_ARGS(), "Ollll", &IM, gd_image_ce, &red, &green, &blue, &alpha) == FAILURE) {
- RETURN_THROWS();
- }
- im = php_gd_libgdimageptr_from_zval_p(IM);
- CHECK_RGBA_RANGE(red, Red, 2);
- CHECK_RGBA_RANGE(green, Green, 3);
- CHECK_RGBA_RANGE(blue, Blue, 4);
- CHECK_RGBA_RANGE(alpha, Alpha, 5);
- ct = gdImageColorAllocateAlpha(im, red, green, blue, alpha);
- if (ct < 0) {
- RETURN_FALSE;
- }
- RETURN_LONG((zend_long)ct);
- }
- /* }}} */
- /* {{{ proto int imagecolorresolvealpha(resource im, int red, int green, int blue, int alpha)
- Resolve/Allocate a colour with an alpha level. Works for true colour and palette based images */
- PHP_FUNCTION(imagecolorresolvealpha)
- {
- zval *IM;
- zend_long red, green, blue, alpha;
- gdImagePtr im;
- if (zend_parse_parameters(ZEND_NUM_ARGS(), "Ollll", &IM, gd_image_ce, &red, &green, &blue, &alpha) == FAILURE) {
- RETURN_THROWS();
- }
- im = php_gd_libgdimageptr_from_zval_p(IM);
- CHECK_RGBA_RANGE(red, Red, 2);
- CHECK_RGBA_RANGE(green, Green, 3);
- CHECK_RGBA_RANGE(blue, Blue, 4);
- CHECK_RGBA_RANGE(alpha, Alpha, 5);
- RETURN_LONG(gdImageColorResolveAlpha(im, red, green, blue, alpha));
- }
- /* }}} */
- /* {{{ proto int imagecolorclosestalpha(resource im, int red, int green, int blue, int alpha)
- Find the closest matching colour with alpha transparency */
- PHP_FUNCTION(imagecolorclosestalpha)
- {
- zval *IM;
- zend_long red, green, blue, alpha;
- gdImagePtr im;
- if (zend_parse_parameters(ZEND_NUM_ARGS(), "Ollll", &IM, gd_image_ce, &red, &green, &blue, &alpha) == FAILURE) {
- RETURN_THROWS();
- }
- im = php_gd_libgdimageptr_from_zval_p(IM);
- CHECK_RGBA_RANGE(red, Red, 2);
- CHECK_RGBA_RANGE(green, Green, 3);
- CHECK_RGBA_RANGE(blue, Blue, 4);
- CHECK_RGBA_RANGE(alpha, Alpha, 5);
- RETURN_LONG(gdImageColorClosestAlpha(im, red, green, blue, alpha));
- }
- /* }}} */
- /* {{{ proto int imagecolorexactalpha(resource im, int red, int green, int blue, int alpha)
- Find exact match for colour with transparency */
- PHP_FUNCTION(imagecolorexactalpha)
- {
- zval *IM;
- zend_long red, green, blue, alpha;
- gdImagePtr im;
- if (zend_parse_parameters(ZEND_NUM_ARGS(), "Ollll", &IM, gd_image_ce, &red, &green, &blue, &alpha) == FAILURE) {
- RETURN_THROWS();
- }
- im = php_gd_libgdimageptr_from_zval_p(IM);
- CHECK_RGBA_RANGE(red, Red, 2);
- CHECK_RGBA_RANGE(green, Green, 3);
- CHECK_RGBA_RANGE(blue, Blue, 4);
- CHECK_RGBA_RANGE(alpha, Alpha, 5);
- RETURN_LONG(gdImageColorExactAlpha(im, red, green, blue, alpha));
- }
- /* }}} */
- /* {{{ proto bool imagecopyresampled(resource dst_im, resource src_im, int dst_x, int dst_y, int src_x, int src_y, int dst_w, int dst_h, int src_w, int src_h)
- Copy and resize part of an image using resampling to help ensure clarity */
- PHP_FUNCTION(imagecopyresampled)
- {
- zval *SIM, *DIM;
- zend_long SX, SY, SW, SH, DX, DY, DW, DH;
- gdImagePtr im_dst, im_src;
- int srcH, srcW, dstH, dstW, srcY, srcX, dstY, dstX;
- if (zend_parse_parameters(ZEND_NUM_ARGS(), "OOllllllll", &DIM, gd_image_ce, &SIM, gd_image_ce, &DX, &DY, &SX, &SY, &DW, &DH, &SW, &SH) == FAILURE) {
- RETURN_THROWS();
- }
- im_src = php_gd_libgdimageptr_from_zval_p(SIM);
- im_dst = php_gd_libgdimageptr_from_zval_p(DIM);
- srcX = SX;
- srcY = SY;
- srcH = SH;
- srcW = SW;
- dstX = DX;
- dstY = DY;
- dstH = DH;
- dstW = DW;
- gdImageCopyResampled(im_dst, im_src, dstX, dstY, srcX, srcY, dstW, dstH, srcW, srcH);
- RETURN_TRUE;
- }
- /* }}} */
- #ifdef PHP_WIN32
- /* {{{ proto resource imagegrabwindow(int window_handle [, int client_area])
- Grab a window or its client area using a windows handle (HWND property in COM instance) */
- PHP_FUNCTION(imagegrabwindow)
- {
- HWND window;
- zend_long client_area = 0;
- RECT rc = {0};
- int Width, Height;
- HDC hdc;
- HDC memDC;
- HBITMAP memBM;
- HBITMAP hOld;
- zend_long lwindow_handle;
- gdImagePtr im = NULL;
- if (zend_parse_parameters(ZEND_NUM_ARGS(), "l|l", &lwindow_handle, &client_area) == FAILURE) {
- RETURN_THROWS();
- }
- window = (HWND) lwindow_handle;
- if (!IsWindow(window)) {
- php_error_docref(NULL, E_NOTICE, "Invalid window handle");
- RETURN_FALSE;
- }
- hdc = GetDC(0);
- if (client_area) {
- GetClientRect(window, &rc);
- Width = rc.right;
- Height = rc.bottom;
- } else {
- GetWindowRect(window, &rc);
- Width = rc.right - rc.left;
- Height = rc.bottom - rc.top;
- }
- Width = (Width/4)*4;
- memDC = CreateCompatibleDC(hdc);
- memBM = CreateCompatibleBitmap(hdc, Width, Height);
- hOld = (HBITMAP) SelectObject (memDC, memBM);
- PrintWindow(window, memDC, (UINT) client_area);
- im = gdImageCreateTrueColor(Width, Height);
- if (im) {
- int x,y;
- for (y=0; y <= Height; y++) {
- for (x=0; x <= Width; x++) {
- int c = GetPixel(memDC, x,y);
- gdImageSetPixel(im, x, y, gdTrueColor(GetRValue(c), GetGValue(c), GetBValue(c)));
- }
- }
- }
- SelectObject(memDC,hOld);
- DeleteObject(memBM);
- DeleteDC(memDC);
- ReleaseDC( 0, hdc );
- if (!im) {
- RETURN_FALSE;
- }
- php_gd_assign_libgdimageptr_as_extgdimage(return_value, im);
- }
- /* }}} */
- /* {{{ proto resource imagegrabscreen()
- Grab a screenshot */
- PHP_FUNCTION(imagegrabscreen)
- {
- HWND window = GetDesktopWindow();
- RECT rc = {0};
- int Width, Height;
- HDC hdc;
- HDC memDC;
- HBITMAP memBM;
- HBITMAP hOld;
- gdImagePtr im;
- hdc = GetDC(0);
- if (zend_parse_parameters_none() == FAILURE) {
- RETURN_THROWS();
- }
- if (!hdc) {
- RETURN_FALSE;
- }
- GetWindowRect(window, &rc);
- Width = rc.right - rc.left;
- Height = rc.bottom - rc.top;
- Width = (Width/4)*4;
- memDC = CreateCompatibleDC(hdc);
- memBM = CreateCompatibleBitmap(hdc, Width, Height);
- hOld = (HBITMAP) SelectObject (memDC, memBM);
- BitBlt( memDC, 0, 0, Width, Height , hdc, rc.left, rc.top , SRCCOPY );
- im = gdImageCreateTrueColor(Width, Height);
- if (im) {
- int x,y;
- for (y=0; y <= Height; y++) {
- for (x=0; x <= Width; x++) {
- int c = GetPixel(memDC, x,y);
- gdImageSetPixel(im, x, y, gdTrueColor(GetRValue(c), GetGValue(c), GetBValue(c)));
- }
- }
- }
- SelectObject(memDC,hOld);
- DeleteObject(memBM);
- DeleteDC(memDC);
- ReleaseDC( 0, hdc );
- if (!im) {
- RETURN_FALSE;
- }
- php_gd_assign_libgdimageptr_as_extgdimage(return_value, im);
- }
- /* }}} */
- #endif /* PHP_WIN32 */
- /* {{{ proto resource imagerotate(resource src_im, float angle, int bgdcolor [, int ignoretransparent])
- Rotate an image using a custom angle */
- PHP_FUNCTION(imagerotate)
- {
- zval *SIM;
- gdImagePtr im_dst, im_src;
- double degrees;
- zend_long color;
- zend_long ignoretransparent = 0;
- if (zend_parse_parameters(ZEND_NUM_ARGS(), "Odl|l", &SIM, gd_image_ce, °rees, &color, &ignoretransparent) == FAILURE) {
- RETURN_THROWS();
- }
- im_src = php_gd_libgdimageptr_from_zval_p(SIM);
- im_dst = gdImageRotateInterpolated(im_src, (const float)degrees, color);
- if (im_dst == NULL) {
- RETURN_FALSE;
- }
- php_gd_assign_libgdimageptr_as_extgdimage(return_value, im_dst);
- }
- /* }}} */
- /* {{{ proto bool imagesettile(resource image, resource tile)
- Set the tile image to $tile when filling $image with the "IMG_COLOR_TILED" color */
- PHP_FUNCTION(imagesettile)
- {
- zval *IM, *TILE;
- gdImagePtr im, tile;
- if (zend_parse_parameters(ZEND_NUM_ARGS(), "OO", &IM, gd_image_ce, &TILE, gd_image_ce) == FAILURE) {
- RETURN_THROWS();
- }
- im = php_gd_libgdimageptr_from_zval_p(IM);
- tile = php_gd_libgdimageptr_from_zval_p(TILE);
- gdImageSetTile(im, tile);
- RETURN_TRUE;
- }
- /* }}} */
- /* {{{ proto bool imagesetbrush(resource image, resource brush)
- Set the brush image to $brush when filling $image with the "IMG_COLOR_BRUSHED" color */
- PHP_FUNCTION(imagesetbrush)
- {
- zval *IM, *TILE;
- gdImagePtr im, tile;
- if (zend_parse_parameters(ZEND_NUM_ARGS(), "OO", &IM, gd_image_ce, &TILE, gd_image_ce) == FAILURE) {
- RETURN_THROWS();
- }
- im = php_gd_libgdimageptr_from_zval_p(IM);
- tile = php_gd_libgdimageptr_from_zval_p(TILE);
- gdImageSetBrush(im, tile);
- RETURN_TRUE;
- }
- /* }}} */
- /* {{{ proto resource imagecreate(int x_size, int y_size)
- Create a new image */
- PHP_FUNCTION(imagecreate)
- {
- zend_long x_size, y_size;
- gdImagePtr im;
- if (zend_parse_parameters(ZEND_NUM_ARGS(), "ll", &x_size, &y_size) == FAILURE) {
- RETURN_THROWS();
- }
- if (x_size <= 0 || x_size >= INT_MAX) {
- zend_argument_value_error(1, "must be greater than 0");
- RETURN_THROWS();
- }
- if (y_size <= 0 || y_size >= INT_MAX) {
- zend_argument_value_error(2, "must be greater than 0");
- RETURN_THROWS();
- }
- im = gdImageCreate(x_size, y_size);
- if (!im) {
- RETURN_FALSE;
- }
- php_gd_assign_libgdimageptr_as_extgdimage(return_value, im);
- }
- /* }}} */
- /* {{{ proto int imagetypes(void)
- Return the types of images supported in a bitfield - 1=GIF, 2=JPEG, 4=PNG, 8=WBMP, 16=XPM */
- PHP_FUNCTION(imagetypes)
- {
- int ret = 0;
- ret = PHP_IMG_GIF;
- #ifdef HAVE_GD_JPG
- ret |= PHP_IMG_JPG;
- #endif
- #ifdef HAVE_GD_PNG
- ret |= PHP_IMG_PNG;
- #endif
- ret |= PHP_IMG_WBMP;
- #if defined(HAVE_GD_XPM)
- ret |= PHP_IMG_XPM;
- #endif
- #ifdef HAVE_GD_WEBP
- ret |= PHP_IMG_WEBP;
- #endif
- #ifdef HAVE_GD_BMP
- ret |= PHP_IMG_BMP;
- #endif
- #ifdef HAVE_GD_TGA
- ret |= PHP_IMG_TGA;
- #endif
- if (zend_parse_parameters_none() == FAILURE) {
- RETURN_THROWS();
- }
- RETURN_LONG(ret);
- }
- /* }}} */
- /* {{{ _php_ctx_getmbi
- */
- static int _php_ctx_getmbi(gdIOCtx *ctx)
- {
- int i, mbi = 0;
- do {
- i = (ctx->getC)(ctx);
- if (i < 0) {
- return -1;
- }
- mbi = (mbi << 7) | (i & 0x7f);
- } while (i & 0x80);
- return mbi;
- }
- /* }}} */
- /* {{{ _php_image_type
- */
- static const char php_sig_gd2[3] = {'g', 'd', '2'};
- static int _php_image_type (char data[12])
- {
- /* Based on ext/standard/image.c */
- if (data == NULL) {
- return -1;
- }
- if (!memcmp(data, php_sig_gd2, sizeof(php_sig_gd2))) {
- return PHP_GDIMG_TYPE_GD2;
- } else if (!memcmp(data, php_sig_jpg, sizeof(php_sig_jpg))) {
- return PHP_GDIMG_TYPE_JPG;
- } else if (!memcmp(data, php_sig_png, sizeof(php_sig_png))) {
- return PHP_GDIMG_TYPE_PNG;
- } else if (!memcmp(data, php_sig_gif, sizeof(php_sig_gif))) {
- return PHP_GDIMG_TYPE_GIF;
- } else if (!memcmp(data, php_sig_bmp, sizeof(php_sig_bmp))) {
- return PHP_GDIMG_TYPE_BMP;
- } else if(!memcmp(data, php_sig_riff, sizeof(php_sig_riff)) && !memcmp(data + sizeof(php_sig_riff) + sizeof(uint32_t), php_sig_webp, sizeof(php_sig_webp))) {
- return PHP_GDIMG_TYPE_WEBP;
- }
- else {
- gdIOCtx *io_ctx;
- io_ctx = gdNewDynamicCtxEx(8, data, 0);
- if (io_ctx) {
- if (_php_ctx_getmbi(io_ctx) == 0 && _php_ctx_getmbi(io_ctx) >= 0) {
- io_ctx->gd_free(io_ctx);
- return PHP_GDIMG_TYPE_WBM;
- } else {
- io_ctx->gd_free(io_ctx);
- }
- }
- }
- return -1;
- }
- /* }}} */
- /* {{{ _php_image_create_from_string
- */
- gdImagePtr _php_image_create_from_string(zend_string *data, char *tn, gdImagePtr (*ioctx_func_p)())
- {
- gdImagePtr im;
- gdIOCtx *io_ctx;
- io_ctx = gdNewDynamicCtxEx(ZSTR_LEN(data), ZSTR_VAL(data), 0);
- if (!io_ctx) {
- return NULL;
- }
- im = (*ioctx_func_p)(io_ctx);
- if (!im) {
- php_error_docref(NULL, E_WARNING, "Passed data is not in '%s' format", tn);
- io_ctx->gd_free(io_ctx);
- return NULL;
- }
- io_ctx->gd_free(io_ctx);
- return im;
- }
- /* }}} */
- /* {{{ proto resource imagecreatefromstring(string image)
- Create a new image from the image stream in the string */
- PHP_FUNCTION(imagecreatefromstring)
- {
- zend_string *data;
- gdImagePtr im;
- int imtype;
- char sig[12];
- if (zend_parse_parameters(ZEND_NUM_ARGS(), "S", &data) == FAILURE) {
- RETURN_THROWS();
- }
- if (ZSTR_LEN(data) < sizeof(sig)) {
- php_error_docref(NULL, E_WARNING, "Empty string or invalid image");
- RETURN_FALSE;
- }
- memcpy(sig, ZSTR_VAL(data), sizeof(sig));
- imtype = _php_image_type(sig);
- switch (imtype) {
- case PHP_GDIMG_TYPE_JPG:
- #ifdef HAVE_GD_JPG
- im = _php_image_create_from_string(data, "JPEG", gdImageCreateFromJpegCtx);
- #else
- php_error_docref(NULL, E_WARNING, "No JPEG support in this PHP build");
- RETURN_FALSE;
- #endif
- break;
- case PHP_GDIMG_TYPE_PNG:
- #ifdef HAVE_GD_PNG
- im = _php_image_create_from_string(data, "PNG", gdImageCreateFromPngCtx);
- #else
- php_error_docref(NULL, E_WARNING, "No PNG support in this PHP build");
- RETURN_FALSE;
- #endif
- break;
- case PHP_GDIMG_TYPE_GIF:
- im = _php_image_create_from_string(data, "GIF", gdImageCreateFromGifCtx);
- break;
- case PHP_GDIMG_TYPE_WBM:
- im = _php_image_create_from_string(data, "WBMP", gdImageCreateFromWBMPCtx);
- break;
- case PHP_GDIMG_TYPE_GD2:
- im = _php_image_create_from_string(data, "GD2", gdImageCreateFromGd2Ctx);
- break;
- case PHP_GDIMG_TYPE_BMP:
- im = _php_image_create_from_string(data, "BMP", gdImageCreateFromBmpCtx);
- break;
- case PHP_GDIMG_TYPE_WEBP:
- #ifdef HAVE_GD_WEBP
- im = _php_image_create_from_string(data, "WEBP", gdImageCreateFromWebpCtx);
- break;
- #else
- php_error_docref(NULL, E_WARNING, "No WEBP support in this PHP build");
- RETURN_FALSE;
- #endif
- default:
- php_error_docref(NULL, E_WARNING, "Data is not in a recognized format");
- RETURN_FALSE;
- }
- if (!im) {
- php_error_docref(NULL, E_WARNING, "Couldn't create GD Image Stream out of Data");
- RETURN_FALSE;
- }
- php_gd_assign_libgdimageptr_as_extgdimage(return_value, im);
- }
- /* }}} */
- /* {{{ _php_image_create_from
- */
- static void _php_image_create_from(INTERNAL_FUNCTION_PARAMETERS, int image_type, char *tn, gdImagePtr (*func_p)(), gdImagePtr (*ioctx_func_p)())
- {
- char *file;
- size_t file_len;
- zend_long srcx, srcy, width, height;
- gdImagePtr im = NULL;
- php_stream *stream;
- FILE * fp = NULL;
- #ifdef HAVE_GD_JPG
- long ignore_warning;
- #endif
- if (image_type == PHP_GDIMG_TYPE_GD2PART) {
- if (zend_parse_parameters(ZEND_NUM_ARGS(), "pllll", &file, &file_len, &srcx, &srcy, &width, &height) == FAILURE) {
- RETURN_THROWS();
- }
- if (width < 1) {
- zend_argument_value_error(4, "must be greater than or equal to 1");
- RETURN_THROWS();
- }
- if (height < 1) {
- zend_argument_value_error(5, "must be greater than or equal to 1");
- RETURN_THROWS();
- }
- } else {
- if (zend_parse_parameters(ZEND_NUM_ARGS(), "p", &file, &file_len) == FAILURE) {
- RETURN_THROWS();
- }
- }
- stream = php_stream_open_wrapper(file, "rb", REPORT_ERRORS|IGNORE_PATH|IGNORE_URL_WIN, NULL);
- if (stream == NULL) {
- RETURN_FALSE;
- }
- /* try and avoid allocating a FILE* if the stream is not naturally a FILE* */
- if (php_stream_is(stream, PHP_STREAM_IS_STDIO)) {
- if (FAILURE == php_stream_cast(stream, PHP_STREAM_AS_STDIO, (void**)&fp, REPORT_ERRORS)) {
- goto out_err;
- }
- } else if (ioctx_func_p) {
- /* we can create an io context */
- gdIOCtx* io_ctx;
- zend_string *buff;
- char *pstr;
- buff = php_stream_copy_to_mem(stream, PHP_STREAM_COPY_ALL, 0);
- if (!buff) {
- php_error_docref(NULL, E_WARNING,"Cannot read image data");
- goto out_err;
- }
- /* needs to be malloc (persistent) - GD will free() it later */
- pstr = pestrndup(ZSTR_VAL(buff), ZSTR_LEN(buff), 1);
- io_ctx = gdNewDynamicCtxEx(ZSTR_LEN(buff), pstr, 0);
- if (!io_ctx) {
- pefree(pstr, 1);
- zend_string_release_ex(buff, 0);
- php_error_docref(NULL, E_WARNING,"Cannot allocate GD IO context");
- goto out_err;
- }
- if (image_type == PHP_GDIMG_TYPE_GD2PART) {
- im = (*ioctx_func_p)(io_ctx, srcx, srcy, width, height);
- } else {
- im = (*ioctx_func_p)(io_ctx);
- }
- io_ctx->gd_free(io_ctx);
- pefree(pstr, 1);
- zend_string_release_ex(buff, 0);
- }
- else if (php_stream_can_cast(stream, PHP_STREAM_AS_STDIO)) {
- /* try and force the stream to be FILE* */
- if (FAILURE == php_stream_cast(stream, PHP_STREAM_AS_STDIO | PHP_STREAM_CAST_TRY_HARD, (void **) &fp, REPORT_ERRORS)) {
- goto out_err;
- }
- }
- if (!im && fp) {
- switch (image_type) {
- case PHP_GDIMG_TYPE_GD2PART:
- im = (*func_p)(fp, srcx, srcy, width, height);
- break;
- #if defined(HAVE_GD_XPM)
- case PHP_GDIMG_TYPE_XPM:
- im = gdImageCreateFromXpm(file);
- break;
- #endif
- #ifdef HAVE_GD_JPG
- case PHP_GDIMG_TYPE_JPG:
- ignore_warning = INI_INT("gd.jpeg_ignore_warning");
- im = gdImageCreateFromJpegEx(fp, ignore_warning);
- break;
- #endif
- default:
- im = (*func_p)(fp);
- break;
- }
- fflush(fp);
- }
- /* register_im: */
- if (im) {
- php_stream_close(stream);
- php_gd_assign_libgdimageptr_as_extgdimage(return_value, im);
- return;
- }
- php_error_docref(NULL, E_WARNING, "'%s' is not a valid %s file", file, tn);
- out_err:
- php_stream_close(stream);
- RETURN_FALSE;
- }
- /* }}} */
- /* {{{ proto resource imagecreatefromgif(string filename)
- Create a new image from GIF file or URL */
- PHP_FUNCTION(imagecreatefromgif)
- {
- _php_image_create_from(INTERNAL_FUNCTION_PARAM_PASSTHRU, PHP_GDIMG_TYPE_GIF, "GIF", gdImageCreateFromGif, gdImageCreateFromGifCtx);
- }
- /* }}} */
- #ifdef HAVE_GD_JPG
- /* {{{ proto resource imagecreatefromjpeg(string filename)
- Create a new image from JPEG file or URL */
- PHP_FUNCTION(imagecreatefromjpeg)
- {
- _php_image_create_from(INTERNAL_FUNCTION_PARAM_PASSTHRU, PHP_GDIMG_TYPE_JPG, "JPEG", gdImageCreateFromJpeg, gdImageCreateFromJpegCtx);
- }
- /* }}} */
- #endif /* HAVE_GD_JPG */
- #ifde…
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