/
imagick_helpers.c
2018 lines (1800 loc) · 79.8 KB
/
imagick_helpers.c
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/*
+----------------------------------------------------------------------+
| PHP Version 5 / Imagick |
+----------------------------------------------------------------------+
| Copyright (c) 2006-2013 Mikko Koppanen, Scott MacVicar |
| ImageMagick (c) ImageMagick Studio LLC |
+----------------------------------------------------------------------+
| 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. |
+----------------------------------------------------------------------+
| Author: Mikko Kopppanen <mkoppanen@php.net> |
| Scott MacVicar <scottmac@php.net> |
+----------------------------------------------------------------------+
*/
#include "php_imagick.h"
#include "php_imagick_defs.h"
#include "php_imagick_macros.h"
#include "php_imagick_helpers.h"
MagickBooleanType php_imagick_progress_monitor(const char *text, const MagickOffsetType offset, const MagickSizeType span, void *client_data)
{
FILE *fp;
php_imagick_object *intern = (php_imagick_object *)client_data;
if (!intern) {
return MagickFalse;
}
if (!intern->progress_monitor_name) {
return MagickFalse;
}
fp = fopen(intern->progress_monitor_name, "a+");
if (!fp) {
return MagickFalse;
}
fprintf(fp, "text: %s, offset: %lld, span: %lld\n", text, offset, span);
fclose(fp);
return MagickTrue;
}
void php_imagick_cleanup_progress_callback(php_imagick_callback* progress_callback TSRMLS_DC) {
if (progress_callback) {
if (progress_callback->previous_callback) {
php_imagick_cleanup_progress_callback(progress_callback->previous_callback TSRMLS_CC);
efree(progress_callback->previous_callback);
}
#if PHP_VERSION_ID >= 70000
zval_ptr_dtor(&progress_callback->user_callback);
#else
zval_ptr_dtor(&progress_callback->user_callback);
#endif
}
}
MagickBooleanType php_imagick_progress_monitor_callable(const char *text, const MagickOffsetType offset, const MagickSizeType span, void *userData)
{
int error;
zend_fcall_info fci;
zend_fcall_info_cache fci_cache;
#if PHP_VERSION_ID >= 70000
zval zargs[2];
zval retval;
#else
zval **zargs[2];
zval *retval_ptr;
#endif
//We can get the data both via the passed param and via
//IMAGICK_G(progress_callback) - this should be quicker
php_imagick_callback *callback = (php_imagick_callback*)userData;
// This suppresses an 'unused parameter' warning.
// We could maybe use text.
(void)text;
#if PHP_VERSION_ID >= 70000 && defined(ZTS)
if( NULL == tsrm_get_ls_cache() ) {
return MagickTrue;
}
#endif
#if PHP_VERSION_ID < 70000
TSRMLS_FETCH_FROM_CTX(callback->thread_ctx);
#endif
fci_cache = empty_fcall_info_cache;
fci = empty_fcall_info;
fci.size = sizeof(fci);
#if PHP_VERSION_ID < 70100
fci.function_table = EG(function_table);
#endif
#if PHP_VERSION_ID >= 70000
//fci.function_name = *callback->user_callback;
ZVAL_COPY_VALUE(&fci.function_name, &callback->user_callback);
fci.retval = &retval;
#else
retval_ptr = NULL;
fci.function_name = callback->user_callback;
fci.retval_ptr_ptr = &retval_ptr;
#endif
fci.param_count = 2;
fci.params = zargs;
#if PHP_VERSION_ID >= 70000
ZVAL_LONG(&zargs[0], offset);
ZVAL_LONG(&zargs[1], span);
#else
zargs[0] = emalloc(sizeof(zval *));
MAKE_STD_ZVAL(*zargs[0]);
ZVAL_LONG(*zargs[0], offset);
zargs[1] = emalloc(sizeof(zval *));
MAKE_STD_ZVAL(*zargs[1]);
ZVAL_LONG(*zargs[1], span);
#endif
error = zend_call_function(&fci, &fci_cache TSRMLS_CC);
if (error == FAILURE) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "An error occurred while invoking the callback");
//Abort processing as user callback is no longer callable
return MagickFalse;
}
#if PHP_VERSION_ID >= 70000
if (Z_TYPE(retval) == IS_FALSE) {
//User returned false - tell Imagick to abort processing.
return MagickFalse;
}
#else
zval_ptr_dtor(zargs[0]);
zval_ptr_dtor(zargs[1]);
if (retval_ptr) {
if (Z_TYPE_P(retval_ptr) == IS_BOOL) {
if (Z_LVAL_P(retval_ptr) == 0) {
//User returned false - tell Imagick to abort processing.
return MagickFalse;
}
}
}
#endif
return MagickTrue;
}
/* This is not universally safe to use, but is safe enough for values that will
be encountered for image dimensions.
*/
static inline double im_round_helper(double value) {
if (value >= 0.0) {
// Prevent zero width/height images
if (value < 1) {
return 1;
}
return floor(value + 0.5);
} else {
return ceil(value - 0.5);
}
}
zend_bool php_imagick_thumbnail_dimensions(MagickWand *magick_wand, zend_bool bestfit, im_long desired_width, im_long desired_height, im_long *new_width, im_long *new_height, zend_bool legacy)
{
im_long orig_width, orig_height;
orig_width = MagickGetImageWidth(magick_wand);
orig_height = MagickGetImageHeight(magick_wand);
if ((orig_width == desired_width) && (orig_height == desired_height)) {
*new_width = desired_width;
*new_height = desired_height;
return 1;
}
if (bestfit) {
double ratio_x, ratio_y;
if (desired_width <= 0 || desired_height <= 0) {
return 0;
}
ratio_x = (double) desired_width / (double) orig_width;
ratio_y = (double) desired_height / (double) orig_height;
//in the case of square images there should be no rounding error
if (ratio_x == ratio_y) {
*new_width = desired_width;
*new_height = desired_height;
} else if (ratio_x < ratio_y) {
*new_width = desired_width;
if (legacy) {
*new_height = ratio_x * ((double) orig_height);
}
else {
*new_height = im_round_helper(ratio_x * ((double) orig_height));
}
} else {
*new_height = desired_height;
if (legacy) {
*new_width = ratio_y * ((double) orig_width);
}
else {
*new_width = im_round_helper(ratio_y * ((double) orig_width));
}
}
*new_width = (*new_width < 1) ? 1 : *new_width;
*new_height = (*new_height < 1) ? 1 : *new_height;
} else {
double ratio;
if (desired_width <= 0 && desired_height <= 0) {
return 0;
}
if (desired_width <= 0 || desired_height <= 0) {
if (desired_width <= 0) {
ratio = (double) orig_height / (double) desired_height;
if (legacy) {
*new_width = ((double) orig_width) / ratio;
}
else {
*new_width = im_round_helper(((double) orig_width) / ratio);
}
*new_height = desired_height;
} else {
ratio = (double) orig_width / (double) desired_width;
if (legacy) {
*new_height = ((double) orig_height) / ratio;
}
else {
*new_height = im_round_helper(((double) orig_height) / ratio);
}
*new_width = desired_width;
}
} else {
*new_width = desired_width;
*new_height = desired_height;
}
}
return 1;
}
zend_bool php_imagick_validate_map(const char *map TSRMLS_DC)
{
zend_bool match;
const char *p = map;
char allow_map[] = { 'R', 'G', 'B',
'A', 'O', 'C',
'Y', 'M', 'K',
'I', 'P' };
while (*p != '\0') {
char *it = allow_map;
match = 0;
while(*it != '\0') {
if (*(it++) == *p) {
match = 1;
break;
}
}
if (!match) {
return 0;
}
p++;
}
return 1;
}
double *php_imagick_zval_to_double_array(zval *param_array, im_long *num_elements TSRMLS_DC)
{
double *double_array;
long i = 0;
#if PHP_VERSION_ID >= 70000
zval *pzvalue;
#else
zval **ppzval;
#endif
*num_elements = zend_hash_num_elements(Z_ARRVAL_P(param_array));
if (*num_elements == 0) {
return NULL;
}
double_array = ecalloc(*num_elements, sizeof(double));
#if PHP_VERSION_ID >= 70000
ZEND_HASH_FOREACH_VAL(Z_ARRVAL_P(param_array), pzvalue) {
ZVAL_DEREF(pzvalue);
double_array[i] = zval_get_double(pzvalue);
i++;
} ZEND_HASH_FOREACH_END();
#else
for (zend_hash_internal_pointer_reset(Z_ARRVAL_P(param_array));
zend_hash_get_current_data(Z_ARRVAL_P(param_array), (void **) &ppzval) == SUCCESS;
zend_hash_move_forward(Z_ARRVAL_P(param_array)), i++)
{
zval tmp_zval, *tmp_pzval;
double value = 0.0;
if (Z_TYPE_PP(ppzval) == IS_DOUBLE) {
value = Z_DVAL_PP(ppzval);
}
else {
tmp_zval = **ppzval;
zval_copy_ctor(&tmp_zval);
tmp_pzval = &tmp_zval;
convert_to_double(tmp_pzval);
value = Z_DVAL_P(tmp_pzval);
zval_dtor (tmp_pzval);
}
double_array[i] = value;
}
#endif
return double_array;
}
im_long *php_imagick_zval_to_long_array(zval *param_array, im_long *num_elements TSRMLS_DC)
{
im_long *long_array;
im_long i = 0;
#if PHP_VERSION_ID >= 70000
zval *pzvalue;
#else
zval **ppzval;
#endif
*num_elements = zend_hash_num_elements(Z_ARRVAL_P(param_array));
if (*num_elements == 0) {
return NULL;
}
long_array = ecalloc(*num_elements, sizeof(im_long));
#if PHP_VERSION_ID >= 70000
ZEND_HASH_FOREACH_VAL(Z_ARRVAL_P(param_array), pzvalue) {
ZVAL_DEREF(pzvalue);
long_array[i] = zval_get_long(pzvalue);
i++;
} ZEND_HASH_FOREACH_END();
#else
for (zend_hash_internal_pointer_reset(Z_ARRVAL_P(param_array));
zend_hash_get_current_data(Z_ARRVAL_P(param_array), (void **) &ppzval) == SUCCESS;
zend_hash_move_forward(Z_ARRVAL_P(param_array)), i++)
{
zval tmp_zval, *tmp_pzval;
im_long value = 0;
if (Z_TYPE_PP(ppzval) == IS_DOUBLE) {
value = Z_LVAL_PP(ppzval);
}
else {
tmp_zval = **ppzval;
zval_copy_ctor(&tmp_zval);
tmp_pzval = &tmp_zval;
convert_to_long(tmp_pzval);
value = Z_LVAL_P(tmp_pzval);
zval_dtor (tmp_pzval);
}
long_array[i] = value;
}
#endif
return long_array;
}
unsigned char *php_imagick_zval_to_char_array(zval *param_array, im_long *num_elements TSRMLS_DC)
{
unsigned char *char_array;
im_long i = 0;
#if PHP_VERSION_ID >= 70000
zval *pzvalue;
#else
zval **ppzval;
#endif
*num_elements = zend_hash_num_elements(Z_ARRVAL_P(param_array));
if (*num_elements == 0) {
return NULL;
}
char_array = ecalloc(*num_elements, sizeof(unsigned char));
#if PHP_VERSION_ID >= 70000
ZEND_HASH_FOREACH_VAL(Z_ARRVAL_P(param_array), pzvalue) {
ZVAL_DEREF(pzvalue);
char_array[i] = zval_get_long(pzvalue);
i++;
} ZEND_HASH_FOREACH_END();
#else
for (zend_hash_internal_pointer_reset(Z_ARRVAL_P(param_array));
zend_hash_get_current_data(Z_ARRVAL_P(param_array), (void **) &ppzval) == SUCCESS;
zend_hash_move_forward(Z_ARRVAL_P(param_array)), i++)
{
zval tmp_zval, *tmp_pzval;
im_long value = 0;
if (Z_TYPE_PP(ppzval) == IS_DOUBLE) {
value = Z_LVAL_PP(ppzval);
}
else {
tmp_zval = **ppzval;
zval_copy_ctor(&tmp_zval);
tmp_pzval = &tmp_zval;
convert_to_long(tmp_pzval);
value = Z_LVAL_P(tmp_pzval);
zval_dtor (tmp_pzval);
}
char_array[i] = value;
}
#endif
return char_array;
}
zend_bool php_imagick_check_font(char *font, int font_len TSRMLS_DC)
{
zend_bool retval = 0;
char **fonts;
unsigned long i = 0;
size_t num_fonts = 0;
/* Check that user is only able to set a proper font */
fonts = MagickQueryFonts("*", &num_fonts);
for(i = 0 ; i < num_fonts ; i++) {
/* Let's see if the font is among configured fonts */
if (strncasecmp(fonts[i], font, font_len) == 0) {
retval = 1;
break;
}
}
IMAGICK_FREE_MAGICK_MEMORY(fonts);
return retval;
}
php_imagick_rw_result_t php_imagick_file_access_check (const char *filename TSRMLS_DC)
{
if (strlen(filename) >= MAXPATHLEN)
return IMAGICK_RW_FILENAME_TOO_LONG;
#if defined(CHECKUID_CHECK_FILE_AND_DIR)
if (PG(safe_mode) && (!php_checkuid_ex(filename, NULL, CHECKUID_CHECK_FILE_AND_DIR, CHECKUID_NO_ERRORS)))
return IMAGICK_RW_SAFE_MODE_ERROR;
#endif
if (php_check_open_basedir_ex(filename, 0 TSRMLS_CC))
return IMAGICK_RW_OPEN_BASEDIR_ERROR;
if (VCWD_ACCESS(filename, F_OK) != 0)
return IMAGICK_RW_PATH_DOES_NOT_EXIST;
if (VCWD_ACCESS(filename, R_OK) != 0)
return IMAGICK_RW_PERMISSION_DENIED;
return IMAGICK_RW_OK;
}
static
void s_rw_fail_to_exception (php_imagick_rw_result_t rc, const char *filename TSRMLS_DC)
{
switch (rc) {
case IMAGICK_RW_SAFE_MODE_ERROR:
zend_throw_exception_ex(php_imagick_exception_class_entry, 1 TSRMLS_CC, "Safe mode restricts user to read the file: %s", filename);
break;
case IMAGICK_RW_OPEN_BASEDIR_ERROR:
zend_throw_exception_ex(php_imagick_exception_class_entry, 1 TSRMLS_CC, "open_basedir restriction in effect. File(%s) is not within the allowed path(s)", filename);
break;
case IMAGICK_RW_PERMISSION_DENIED:
zend_throw_exception_ex(php_imagick_exception_class_entry, 1 TSRMLS_CC, "Permission denied to: %s", filename);
break;
case IMAGICK_RW_FILENAME_TOO_LONG:
zend_throw_exception_ex(php_imagick_exception_class_entry, 1 TSRMLS_CC, "Filename too long: %s", filename);
break;
case IMAGICK_RW_PATH_DOES_NOT_EXIST:
zend_throw_exception_ex(php_imagick_exception_class_entry, 1 TSRMLS_CC, "The path does not exist: %s", filename);
break;
case IMAGICK_RW_PATH_IS_DIR:
zend_throw_exception_ex(php_imagick_exception_class_entry, 1 TSRMLS_CC, "The path is a directory: %s", filename);
break;
default:
zend_throw_exception_ex(php_imagick_exception_class_entry, 1 TSRMLS_CC, "Unknown error");
break;
}
}
void php_imagick_rw_fail_to_exception (MagickWand *magick_wand, php_imagick_rw_result_t rc, const char *filename TSRMLS_DC)
{
if (rc == IMAGICK_RW_UNDERLYING_LIBRARY) {
php_imagick_convert_imagick_exception (magick_wand, "Failed to read the file" TSRMLS_CC);
return;
}
s_rw_fail_to_exception (rc, filename TSRMLS_CC);
}
void php_imagick_imagickdraw_rw_fail_to_exception (DrawingWand *drawing_wand, php_imagick_rw_result_t rc, const char *filename TSRMLS_DC)
{
if (rc == IMAGICK_RW_UNDERLYING_LIBRARY) {
php_imagick_convert_imagickdraw_exception (drawing_wand, "Failed to read the file" TSRMLS_CC);
return;
}
s_rw_fail_to_exception (rc, filename TSRMLS_CC);
}
PointInfo *php_imagick_zval_to_pointinfo_array(zval *coordinate_array, int *num_elements TSRMLS_DC)
{
PointInfo *coordinates;
long elements, sub_elements, i;
HashTable *sub_array;
#if PHP_VERSION_ID >= 70000
zval *pzvalue;
#else
HashTable *coords;
zval **ppzval;
#endif
i = 0;
elements = zend_hash_num_elements(Z_ARRVAL_P(coordinate_array));
if (elements < 1) {
coordinates = (PointInfo *)NULL;
*num_elements = 0;
return coordinates;
}
*num_elements = elements;
coordinates = emalloc(sizeof(PointInfo) * elements);
#if PHP_VERSION_ID >= 70000
ZEND_HASH_FOREACH_VAL(Z_ARRVAL_P(coordinate_array), pzvalue) {
zval *pz_x, *pz_y;
ZVAL_DEREF(pzvalue);
/* If its something than array lets error here */
if(Z_TYPE_P(pzvalue) != IS_ARRAY) {
efree(coordinates);
*num_elements = 0;
return NULL;
}
/* Subarray should have two elements. X and Y */
sub_elements = zend_hash_num_elements(Z_ARRVAL_P(pzvalue));
/* Exactly two elements */
if (sub_elements != 2) {
efree(coordinates);
*num_elements = 0;
return NULL;
}
/* Subarray values */
sub_array = Z_ARRVAL_P(pzvalue);
/* Get X */
if ((pz_x = zend_hash_str_find(sub_array, "x", sizeof("x")-1)) == NULL) {
efree(coordinates);
*num_elements = 0;
return NULL;
}
/* Get Y */
if ((pz_y = zend_hash_str_find(sub_array, "y", sizeof("y")-1)) == NULL) {
efree(coordinates);
*num_elements = 0;
return NULL;
}
/* Assign X and Y */
coordinates[i].x = zval_get_double(pz_x);
coordinates[i].y = zval_get_double(pz_y);
i++;
} ZEND_HASH_FOREACH_END();
#else
coords = Z_ARRVAL_P(coordinate_array);
zend_hash_internal_pointer_reset_ex(coords, (HashPosition *) 0);
for (i = 0, zend_hash_internal_pointer_reset(coords);
zend_hash_get_current_data(coords, (void **) &ppzval) == SUCCESS;
zend_hash_move_forward(coords), i++
) {
zval **ppz_x, **ppz_y;
zval tmp_zx, *tmp_pzx, tmp_zy, *tmp_pzy;
/* If its something than array lets error here */
if(Z_TYPE_PP(ppzval) != IS_ARRAY) {
efree(coordinates);
*num_elements = 0;
return NULL;
}
/* Subarray should have two elements. X and Y */
sub_elements = zend_hash_num_elements(Z_ARRVAL_PP(ppzval));
/* Exactly two elements */
if (sub_elements != 2) {
efree(coordinates);
*num_elements = 0;
return NULL;
}
/* Subarray values */
sub_array = Z_ARRVAL_PP(ppzval);
/* Get X */
if (zend_hash_find(sub_array, "x", sizeof("x"), (void**)&ppz_x) == FAILURE) {
efree(coordinates);
*num_elements = 0;
return NULL;
}
tmp_zx = **ppz_x;
zval_copy_ctor(&tmp_zx);
tmp_pzx = &tmp_zx;
convert_to_double(tmp_pzx);
/* Get Y */
if (zend_hash_find(sub_array, "y", sizeof("y"), (void**)&ppz_y) == FAILURE) {
efree(coordinates);
*num_elements = 0;
return NULL;
}
tmp_zy = **ppz_y;
zval_copy_ctor(&tmp_zy);
tmp_pzy = &tmp_zy;
convert_to_double(tmp_pzy);
/* Assign X and Y */
coordinates[i].x = Z_DVAL(tmp_zx);
coordinates[i].y = Z_DVAL(tmp_zy);
}
#endif
return coordinates;
}
void php_imagick_throw_exception (php_imagick_class_type_t type, const char *description TSRMLS_DC)
{
int code;
zend_class_entry *ce = NULL;
switch (type) {
case IMAGICK_CLASS:
default:
ce = php_imagick_exception_class_entry;
code = 1;
break;
case IMAGICKDRAW_CLASS:
ce = php_imagickdraw_exception_class_entry;
code = 2;
break;
case IMAGICKPIXELITERATOR_CLASS:
ce = php_imagickpixeliterator_exception_class_entry;
code = 3;
break;
case IMAGICKPIXEL_CLASS:
ce = php_imagickpixel_exception_class_entry;
code = 4;
break;
#ifdef IMAGICK_WITH_KERNEL
case IMAGICKKERNEL_CLASS:
ce = php_imagickkernel_exception_class_entry;
code = 5;
break;
#endif
}
zend_throw_exception(ce, description, code TSRMLS_CC);
}
static
void s_convert_exception (char *description, const char *default_message, long severity, int code TSRMLS_DC)
{
// No description provided or empty one
if (!description || (strlen (description) == 0)) {
if (description) {
description = MagickRelinquishMemory (description);
}
zend_throw_exception(php_imagick_exception_class_entry, default_message, code TSRMLS_CC);
return;
}
zend_throw_exception(php_imagick_exception_class_entry, description, severity TSRMLS_CC);
MagickRelinquishMemory (description);
}
/**
Convert ImageMagick MagickWand exception to PHP exception
*/
void php_imagick_convert_imagick_exception (MagickWand *magick_wand, const char *default_message TSRMLS_DC)
{
ExceptionType severity;
char *description;
description = MagickGetException(magick_wand, &severity);
MagickClearException (magick_wand);
s_convert_exception (description, default_message, severity, 1 TSRMLS_CC);
}
void php_imagick_convert_imagickdraw_exception (DrawingWand *drawing_wand, const char *default_message TSRMLS_DC)
{
ExceptionType severity;
char *description;
description = DrawGetException(drawing_wand, &severity);
DrawClearException (drawing_wand);
s_convert_exception (description, default_message, severity, 2 TSRMLS_CC);
}
void php_imagick_convert_imagickpixeliterator_exception (PixelIterator *pixel_iterator, const char *default_message TSRMLS_DC)
{
ExceptionType severity;
char *description;
description = PixelGetIteratorException(pixel_iterator, &severity);
PixelClearIteratorException (pixel_iterator);
s_convert_exception (description, default_message, severity, 3 TSRMLS_CC);
}
void php_imagick_convert_imagickpixel_exception (PixelWand *pixel_wand, const char *default_message TSRMLS_DC)
{
ExceptionType severity;
char *description;
description = PixelGetException(pixel_wand, &severity);
PixelClearException (pixel_wand);
s_convert_exception (description, default_message, severity, 4 TSRMLS_CC);
}
PixelWand *php_imagick_zval_to_pixelwand (zval *param, php_imagick_class_type_t caller, zend_bool *allocated TSRMLS_DC)
{
PixelWand *pixel_wand = NULL;
*allocated = 0;
#if PHP_VERSION_ID >= 70000
ZVAL_DEREF(param);
#endif
if (Z_TYPE_P (param) == IS_LONG || Z_TYPE_P (param) == IS_DOUBLE) {
zval var;
var = *param;
zval_copy_ctor(&var);
convert_to_string(&var);
param = &var;
}
switch (Z_TYPE_P(param)) {
case IS_STRING:
{
pixel_wand = NewPixelWand();
if (!pixel_wand) {
zend_error(E_ERROR, "Failed to allocate PixelWand structure");
}
*allocated = 1;
if (PixelSetColor (pixel_wand, Z_STRVAL_P(param)) == MagickFalse) {
pixel_wand = DestroyPixelWand(pixel_wand);
php_imagick_throw_exception (caller, "Unrecognized color string" TSRMLS_CC);
return NULL;
}
}
break;
case IS_OBJECT:
if (instanceof_function(Z_OBJCE_P(param), php_imagickpixel_sc_entry TSRMLS_CC)) {
php_imagickpixel_object *intern = Z_IMAGICKPIXEL_P(param);
pixel_wand = intern->pixel_wand;
} else
php_imagick_throw_exception(caller, "The parameter must be an instance of ImagickPixel or a string" TSRMLS_CC);
break;
default:
php_imagick_throw_exception(caller, "Invalid color parameter provided" TSRMLS_CC);
}
return pixel_wand;
}
PixelWand *php_imagick_zval_to_opacity (zval *param, php_imagick_class_type_t caller, zend_bool *allocated TSRMLS_DC)
{
PixelWand *pixel_wand = NULL;
*allocated = 0;
#if PHP_VERSION_ID >= 70000
ZVAL_DEREF(param);
#endif
if (Z_TYPE_P (param) == IS_STRING) {
zval var;
var = *param;
zval_copy_ctor(&var);
convert_to_double(&var);
param = &var;
}
switch (Z_TYPE_P(param)) {
case IS_LONG:
case IS_DOUBLE:
{
pixel_wand = NewPixelWand();
if (!pixel_wand) {
zend_error(E_ERROR, "Failed to allocate PixelWand structure");
}
#if MagickLibVersion >= 0x700
//TOOD - this should be one minus? Or should we just make a BC break
// and make users do it in user land?
PixelSetAlpha(pixel_wand, Z_DVAL_P(param));
#else
PixelSetOpacity(pixel_wand, Z_DVAL_P(param));
#endif
*allocated = 1;
}
break;
case IS_OBJECT:
if (instanceof_function(Z_OBJCE_P(param), php_imagickpixel_sc_entry TSRMLS_CC)) {
php_imagickpixel_object *intern = Z_IMAGICKPIXEL_P(param);
pixel_wand = intern->pixel_wand;
} else
php_imagick_throw_exception(caller, "The parameter must be an instance of ImagickPixel or a string" TSRMLS_CC);
break;
default:
php_imagick_throw_exception(caller, "Invalid color parameter provided" TSRMLS_CC);
}
return pixel_wand;
}
/**
* Changes the locale to IMAGICK_LC_NUMERIC_LOCALE if imagick.locale_fix is on
* and returns the locale set before calling this function.
* If locale is not changed, NULL is returned
*
*/
char *php_imagick_set_locale (TSRMLS_D)
{
char *current_locale;
if (!IMAGICK_G(locale_fix))
return NULL;
current_locale = setlocale(LC_NUMERIC, NULL);
if (current_locale != NULL) {
if (strcmp (current_locale, IMAGICK_LC_NUMERIC_LOCALE) != 0) {
setlocale (LC_NUMERIC, IMAGICK_LC_NUMERIC_LOCALE);
return estrdup (current_locale);
}
}
return NULL;
}
void php_imagick_restore_locale (const char *old_locale)
{
if (!old_locale)
return;
if (strcmp (old_locale, IMAGICK_LC_NUMERIC_LOCALE) != 0)
setlocale (LC_NUMERIC, old_locale);
}
PixelWand *php_imagick_clone_pixelwand (PixelWand *source)
{
#if MagickLibVersion >= 0x635
return ClonePixelWand(source);
#else
PixelWand *target = NewPixelWand ();
if (!target)
return NULL;
PixelSetColorCount (target, PixelGetColorCount (source));
PixelSetRed (target, PixelGetRed (source));
PixelSetGreen (target, PixelGetGreen (source));
PixelSetBlue (target, PixelGetBlue (source));
PixelSetOpacity (target, PixelGetOpacity (source));
PixelSetAlpha (target, PixelGetAlpha (source));
return target;
#endif
}
void php_imagick_replace_magickwand (php_imagick_object *obj, MagickWand *new_wand)
{
if (!obj->magick_wand)
obj->magick_wand = new_wand;
else {
obj->magick_wand = DestroyMagickWand(obj->magick_wand);
obj->magick_wand = new_wand;
}
}
void php_imagick_replace_drawingwand (php_imagickdraw_object *obj, DrawingWand *new_wand)
{
if (!obj->drawing_wand)
obj->drawing_wand = new_wand;
else {
obj->drawing_wand = DestroyDrawingWand(obj->drawing_wand);
obj->drawing_wand = new_wand;
}
}
void php_imagick_replace_pixelwand (php_imagickpixel_object *obj, PixelWand *new_wand)
{
if (obj->pixel_wand && obj->initialized_via_iterator != 1) {
obj->pixel_wand = DestroyPixelWand(obj->pixel_wand);
obj->pixel_wand = new_wand;
} else
obj->pixel_wand = new_wand;
}
zend_bool php_imagick_ensure_not_empty (MagickWand *magick_wand)
{
if (MagickGetNumberImages(magick_wand) == 0) {
TSRMLS_FETCH ();
php_imagick_throw_exception (IMAGICK_CLASS, "Can not process empty Imagick object" TSRMLS_CC);
return 0;
}
return 1;
}
zend_bool php_imagickpixel_ensure_not_null(PixelWand *pixel_wand)
{
if (pixel_wand == NULL) {
TSRMLS_FETCH ();
php_imagick_throw_exception (IMAGICKPIXEL_CLASS, "Can not process empty ImagickPixel object" TSRMLS_CC);
return 0;
}
return 1;
}
void php_imagick_initialize_constants(TSRMLS_D)
{
#define IMAGICK_REGISTER_CONST_LONG(const_name, value)\
zend_declare_class_constant_long(php_imagick_sc_entry, const_name, sizeof(const_name)-1, (long)value TSRMLS_CC);
#define IMAGICK_REGISTER_CONST_STRING(const_name, value)\
zend_declare_class_constant_string(php_imagick_sc_entry, const_name, sizeof(const_name)-1, value TSRMLS_CC);
/* Constants defined in php_imagick.h */
IMAGICK_REGISTER_CONST_LONG("COLOR_BLACK", PHP_IMAGICK_COLOR_BLACK);
IMAGICK_REGISTER_CONST_LONG("COLOR_BLUE", PHP_IMAGICK_COLOR_BLUE);
IMAGICK_REGISTER_CONST_LONG("COLOR_CYAN", PHP_IMAGICK_COLOR_CYAN);
IMAGICK_REGISTER_CONST_LONG("COLOR_GREEN", PHP_IMAGICK_COLOR_GREEN);
IMAGICK_REGISTER_CONST_LONG("COLOR_RED", PHP_IMAGICK_COLOR_RED);
IMAGICK_REGISTER_CONST_LONG("COLOR_YELLOW", PHP_IMAGICK_COLOR_YELLOW);
IMAGICK_REGISTER_CONST_LONG("COLOR_MAGENTA", PHP_IMAGICK_COLOR_MAGENTA);
#if MagickLibVersion < 0x700
IMAGICK_REGISTER_CONST_LONG("COLOR_OPACITY", PHP_IMAGICK_COLOR_OPACITY);
#endif
IMAGICK_REGISTER_CONST_LONG("COLOR_ALPHA", PHP_IMAGICK_COLOR_ALPHA);
IMAGICK_REGISTER_CONST_LONG("COLOR_FUZZ", PHP_IMAGICK_COLOR_FUZZ);
/* Returning the version as a constant string */
IMAGICK_REGISTER_CONST_LONG("IMAGICK_EXTNUM", PHP_IMAGICK_EXTNUM);
IMAGICK_REGISTER_CONST_STRING("IMAGICK_EXTVER", PHP_IMAGICK_VERSION);
#if defined(MagickQuantumRange)
IMAGICK_REGISTER_CONST_LONG("QUANTUM_RANGE", atoi (MagickQuantumRange));
#endif
/* Are we using PHP allocations */
#ifdef PHP_IMAGICK_ZEND_MM
IMAGICK_REGISTER_CONST_LONG("USE_ZEND_MM", 1);
#else