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PHP ImageIsTrueColor函数代码示例

本文整理汇总了PHP中ImageIsTrueColor函数的典型用法代码示例。如果您正苦于以下问题:PHP ImageIsTrueColor函数的具体用法?PHP ImageIsTrueColor怎么用?PHP ImageIsTrueColor使用的例子?那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。


在下文中一共展示了ImageIsTrueColor函数的8个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的PHP代码示例。

示例1: ImprovedImageRotate

 public static function ImprovedImageRotate(&$gdimg_source, $rotate_angle = 0, $config_background_hexcolor = 'FFFFFF', $bg = null, &$phpThumbObject)
 {
     while ($rotate_angle < 0) {
         $rotate_angle += 360;
     }
     $rotate_angle = $rotate_angle % 360;
     if ($rotate_angle != 0) {
         $background_color = phpthumb_functions::ImageHexColorAllocate($gdimg_source, $config_background_hexcolor);
         if (phpthumb_functions::gd_version() >= 2 && !$bg && $rotate_angle % 90) {
             //$this->DebugMessage('Using alpha rotate', __FILE__, __LINE__);
             if ($gdimg_rotate_mask = phpthumb_functions::ImageCreateFunction(ImageSX($gdimg_source), ImageSY($gdimg_source))) {
                 for ($i = 0; $i <= 255; $i++) {
                     $color_mask[$i] = ImageColorAllocate($gdimg_rotate_mask, $i, $i, $i);
                 }
                 ImageFilledRectangle($gdimg_rotate_mask, 0, 0, ImageSX($gdimg_rotate_mask), ImageSY($gdimg_rotate_mask), $color_mask[255]);
                 $imageX = ImageSX($gdimg_source);
                 $imageY = ImageSY($gdimg_source);
                 for ($x = 0; $x < $imageX; $x++) {
                     for ($y = 0; $y < $imageY; $y++) {
                         $pixelcolor = phpthumb_functions::GetPixelColor($gdimg_source, $x, $y);
                         ImageSetPixel($gdimg_rotate_mask, $x, $y, $color_mask[255 - round($pixelcolor['alpha'] * 255 / 127)]);
                     }
                 }
                 $gdimg_rotate_mask = ImageRotate($gdimg_rotate_mask, $rotate_angle, $color_mask[0]);
                 $gdimg_source = ImageRotate($gdimg_source, $rotate_angle, $background_color);
                 ImageAlphaBlending($gdimg_source, false);
                 ImageSaveAlpha($gdimg_source, true);
                 //$this->is_alpha = true;
                 $phpThumbFilters = new phpthumb_filters();
                 //$phpThumbFilters->phpThumbObject = $this;
                 $phpThumbFilters->phpThumbObject = $phpThumbObject;
                 $phpThumbFilters->ApplyMask($gdimg_rotate_mask, $gdimg_source);
                 ImageDestroy($gdimg_rotate_mask);
             } else {
                 //$this->DebugMessage('ImageCreateFunction() failed', __FILE__, __LINE__);
             }
         } else {
             if (phpthumb_functions::gd_version() < 2) {
                 //$this->DebugMessage('Using non-alpha rotate because gd_version is "'.phpthumb_functions::gd_version().'"', __FILE__, __LINE__);
             } elseif ($bg) {
                 //$this->DebugMessage('Using non-alpha rotate because $this->bg is "'.$bg.'"', __FILE__, __LINE__);
             } elseif ($rotate_angle % 90) {
                 //$this->DebugMessage('Using non-alpha rotate because ($rotate_angle % 90) = "'.($rotate_angle % 90).'"', __FILE__, __LINE__);
             } else {
                 //$this->DebugMessage('Using non-alpha rotate because $this->thumbnailFormat is "'.$this->thumbnailFormat.'"', __FILE__, __LINE__);
             }
             if (ImageColorTransparent($gdimg_source) >= 0) {
                 // ImageRotate() forgets all about an image's transparency and sets the transparent color to black
                 // To compensate, flood-fill the transparent color of the source image with the specified background color first
                 // then rotate and the colors should match
                 if (!function_exists('ImageIsTrueColor') || !ImageIsTrueColor($gdimg_source)) {
                     // convert paletted image to true-color before rotating to prevent nasty aliasing artifacts
                     //$this->source_width  = ImageSX($gdimg_source);
                     //$this->source_height = ImageSY($gdimg_source);
                     $gdimg_newsrc = phpthumb_functions::ImageCreateFunction(ImageSX($gdimg_source), ImageSY($gdimg_source));
                     $background_color = phpthumb_functions::ImageHexColorAllocate($gdimg_newsrc, $config_background_hexcolor);
                     ImageFilledRectangle($gdimg_newsrc, 0, 0, ImageSX($gdimg_source), ImageSY($gdimg_source), phpthumb_functions::ImageHexColorAllocate($gdimg_newsrc, $config_background_hexcolor));
                     ImageCopy($gdimg_newsrc, $gdimg_source, 0, 0, 0, 0, ImageSX($gdimg_source), ImageSY($gdimg_source));
                     ImageDestroy($gdimg_source);
                     unset($gdimg_source);
                     $gdimg_source = $gdimg_newsrc;
                     unset($gdimg_newsrc);
                 } else {
                     ImageColorSet($gdimg_source, ImageColorTransparent($gdimg_source), hexdec(substr($config_background_hexcolor, 0, 2)), hexdec(substr($config_background_hexcolor, 2, 2)), hexdec(substr($config_background_hexcolor, 4, 2)));
                     ImageColorTransparent($gdimg_source, -1);
                 }
             }
             $gdimg_source = ImageRotate($gdimg_source, $rotate_angle, $background_color);
         }
     }
     return true;
 }
开发者ID:exside,项目名称:phpThumb,代码行数:72,代码来源:phpthumb.filters.php

示例2: ImageCopyResampleBicubic

 function ImageCopyResampleBicubic($dst_img, $src_img, $dst_x, $dst_y, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h)
 {
     // ron at korving dot demon dot nl
     // http://www.php.net/imagecopyresampled
     $scaleX = ($src_w - 1) / $dst_w;
     $scaleY = ($src_h - 1) / $dst_h;
     $scaleX2 = $scaleX / 2.0;
     $scaleY2 = $scaleY / 2.0;
     $isTrueColor = ImageIsTrueColor($src_img);
     for ($y = $src_y; $y < $src_y + $dst_h; $y++) {
         $sY = $y * $scaleY;
         $siY = (int) $sY;
         $siY2 = (int) $sY + $scaleY2;
         for ($x = $src_x; $x < $src_x + $dst_w; $x++) {
             $sX = $x * $scaleX;
             $siX = (int) $sX;
             $siX2 = (int) $sX + $scaleX2;
             if ($isTrueColor) {
                 $c1 = ImageColorAt($src_img, $siX, $siY2);
                 $c2 = ImageColorAt($src_img, $siX, $siY);
                 $c3 = ImageColorAt($src_img, $siX2, $siY2);
                 $c4 = ImageColorAt($src_img, $siX2, $siY);
                 $r = $c1 + $c2 + $c3 + $c4 >> 2 & 0xff0000;
                 $g = ($c1 & 0xff00) + ($c2 & 0xff00) + ($c3 & 0xff00) + ($c4 & 0xff00) >> 2 & 0xff00;
                 $b = ($c1 & 0xff) + ($c2 & 0xff) + ($c3 & 0xff) + ($c4 & 0xff) >> 2;
             } else {
                 $c1 = ImageColorsForIndex($src_img, ImageColorAt($src_img, $siX, $siY2));
                 $c2 = ImageColorsForIndex($src_img, ImageColorAt($src_img, $siX, $siY));
                 $c3 = ImageColorsForIndex($src_img, ImageColorAt($src_img, $siX2, $siY2));
                 $c4 = ImageColorsForIndex($src_img, ImageColorAt($src_img, $siX2, $siY));
                 $r = $c1['red'] + $c2['red'] + $c3['red'] + $c4['red'] << 14;
                 $g = $c1['green'] + $c2['green'] + $c3['green'] + $c4['green'] << 6;
                 $b = $c1['blue'] + $c2['blue'] + $c3['blue'] + $c4['blue'] >> 2;
             }
             ImageSetPixel($dst_img, $dst_x + $x - $src_x, $dst_y + $y - $src_y, $r + $g + $b);
         }
     }
     return true;
 }
开发者ID:mashbro,项目名称:Codefight-CMS,代码行数:39,代码来源:phpthumb.functions.php

示例3: GD2ICOstring

 function GD2ICOstring(&$gd_image_array)
 {
     foreach ($gd_image_array as $key => $gd_image) {
         $ImageWidths[$key] = ImageSX($gd_image);
         $ImageHeights[$key] = ImageSY($gd_image);
         $bpp[$key] = ImageIsTrueColor($gd_image) ? 32 : 24;
         $totalcolors[$key] = ImageColorsTotal($gd_image);
         $icXOR[$key] = '';
         for ($y = $ImageHeights[$key] - 1; $y >= 0; $y--) {
             for ($x = 0; $x < $ImageWidths[$key]; $x++) {
                 $argb = phpthumb_functions::GetPixelColor($gd_image, $x, $y);
                 $a = round(255 * ((127 - $argb['alpha']) / 127));
                 $r = $argb['red'];
                 $g = $argb['green'];
                 $b = $argb['blue'];
                 if ($bpp[$key] == 32) {
                     $icXOR[$key] .= chr($b) . chr($g) . chr($r) . chr($a);
                 } elseif ($bpp[$key] == 24) {
                     $icXOR[$key] .= chr($b) . chr($g) . chr($r);
                 }
                 if ($a < 128) {
                     @($icANDmask[$key][$y] .= '1');
                 } else {
                     @($icANDmask[$key][$y] .= '0');
                 }
             }
             // mask bits are 32-bit aligned per scanline
             while (strlen($icANDmask[$key][$y]) % 32) {
                 $icANDmask[$key][$y] .= '0';
             }
         }
         $icAND[$key] = '';
         foreach ($icANDmask[$key] as $y => $scanlinemaskbits) {
             for ($i = 0; $i < strlen($scanlinemaskbits); $i += 8) {
                 $icAND[$key] .= chr(bindec(str_pad(substr($scanlinemaskbits, $i, 8), 8, '0', STR_PAD_LEFT)));
             }
         }
     }
     foreach ($gd_image_array as $key => $gd_image) {
         $biSizeImage = $ImageWidths[$key] * $ImageHeights[$key] * ($bpp[$key] / 8);
         // BITMAPINFOHEADER - 40 bytes
         $BitmapInfoHeader[$key] = '';
         $BitmapInfoHeader[$key] .= "(";
         // DWORD  biSize;
         $BitmapInfoHeader[$key] .= phpthumb_functions::LittleEndian2String($ImageWidths[$key], 4);
         // LONG   biWidth;
         // The biHeight member specifies the combined
         // height of the XOR and AND masks.
         $BitmapInfoHeader[$key] .= phpthumb_functions::LittleEndian2String($ImageHeights[$key] * 2, 4);
         // LONG   biHeight;
         $BitmapInfoHeader[$key] .= "";
         // WORD   biPlanes;
         $BitmapInfoHeader[$key] .= chr($bpp[$key]) . "";
         // wBitCount;
         $BitmapInfoHeader[$key] .= "";
         // DWORD  biCompression;
         $BitmapInfoHeader[$key] .= phpthumb_functions::LittleEndian2String($biSizeImage, 4);
         // DWORD  biSizeImage;
         $BitmapInfoHeader[$key] .= "";
         // LONG   biXPelsPerMeter;
         $BitmapInfoHeader[$key] .= "";
         // LONG   biYPelsPerMeter;
         $BitmapInfoHeader[$key] .= "";
         // DWORD  biClrUsed;
         $BitmapInfoHeader[$key] .= "";
         // DWORD  biClrImportant;
     }
     $icondata = "";
     // idReserved;   // Reserved (must be 0)
     $icondata .= "";
     // idType;       // Resource Type (1 for icons)
     $icondata .= phpthumb_functions::LittleEndian2String(count($gd_image_array), 2);
     // idCount;      // How many images?
     $dwImageOffset = 6 + count($gd_image_array) * 16;
     foreach ($gd_image_array as $key => $gd_image) {
         // ICONDIRENTRY   idEntries[1]; // An entry for each image (idCount of 'em)
         $icondata .= chr($ImageWidths[$key]);
         // bWidth;          // Width, in pixels, of the image
         $icondata .= chr($ImageHeights[$key]);
         // bHeight;         // Height, in pixels, of the image
         $icondata .= chr($totalcolors[$key]);
         // bColorCount;     // Number of colors in image (0 if >=8bpp)
         $icondata .= "";
         // bReserved;       // Reserved ( must be 0)
         $icondata .= "";
         // wPlanes;         // Color Planes
         $icondata .= chr($bpp[$key]) . "";
         // wBitCount;       // Bits per pixel
         $dwBytesInRes = 40 + strlen($icXOR[$key]) + strlen($icAND[$key]);
         $icondata .= phpthumb_functions::LittleEndian2String($dwBytesInRes, 4);
         // dwBytesInRes;    // How many bytes in this resource?
         $icondata .= phpthumb_functions::LittleEndian2String($dwImageOffset, 4);
         // dwImageOffset;   // Where in the file is this image?
         $dwImageOffset += strlen($BitmapInfoHeader[$key]);
         $dwImageOffset += strlen($icXOR[$key]);
         $dwImageOffset += strlen($icAND[$key]);
     }
     foreach ($gd_image_array as $key => $gd_image) {
         $icondata .= $BitmapInfoHeader[$key];
         $icondata .= $icXOR[$key];
//.........这里部分代码省略.........
开发者ID:Vatia13,项目名称:funtime,代码行数:101,代码来源:phpthumb.ico.php

示例4: isImageTrueColor

 static function isImageTrueColor(&$imageObject, $mimeData)
 {
     return ImageIsTrueColor($imageObject);
 }
开发者ID:jordanmanning,项目名称:ezpublish,代码行数:4,代码来源:ezimagegdhandler.php

示例5: Rotate

 function Rotate()
 {
     if (!function_exists('ImageRotate')) {
         return false;
     }
     if (!empty($this->ra) || !empty($this->ar)) {
         $this->config_background_hexcolor = !empty($this->bg) ? $this->bg : $this->config_background_hexcolor;
         if (!eregi('^[0-9A-F]{6}$', $this->config_background_hexcolor)) {
             $this->ErrorImage('Invalid hex color string "' . $this->config_background_hexcolor . '" for parameter "bg"');
         }
         $rotate_angle = 0;
         if (!empty($this->ra)) {
             $rotate_angle = floatval($this->ra);
         } else {
             if ($this->ar == 'l' && $this->source_height > $this->source_width) {
                 $rotate_angle = 270;
             } elseif ($this->ar == 'L' && $this->source_height > $this->source_width) {
                 $rotate_angle = 90;
             } elseif ($this->ar == 'p' && $this->source_width > $this->source_height) {
                 $rotate_angle = 90;
             } elseif ($this->ar == 'P' && $this->source_width > $this->source_height) {
                 $rotate_angle = 270;
             }
         }
         while ($rotate_angle < 0) {
             $rotate_angle += 360;
         }
         $rotate_angle = $rotate_angle % 360;
         if ($rotate_angle != 0) {
             if (ImageColorTransparent($this->gdimg_source) >= 0) {
                 // ImageRotate() forgets all about an image's transparency and sets the transparent color to black
                 // To compensate, flood-fill the transparent color of the source image with the specified background color first
                 // then rotate and the colors should match
                 if (!function_exists('ImageIsTrueColor') || !ImageIsTrueColor($this->gdimg_source)) {
                     // convert paletted image to true-color before rotating to prevent nasty aliasing artifacts
                     $this->source_width = ImageSX($this->gdimg_source);
                     $this->source_height = ImageSY($this->gdimg_source);
                     $gdimg_newsrc = $this->ImageCreateFunction($this->source_width, $this->source_height);
                     $background_color = phpthumb_functions::ImageHexColorAllocate($gdimg_newsrc, $this->config_background_hexcolor);
                     ImageFilledRectangle($gdimg_newsrc, 0, 0, $this->source_width, $this->source_height, phpthumb_functions::ImageHexColorAllocate($gdimg_newsrc, $this->config_background_hexcolor));
                     ImageCopy($gdimg_newsrc, $this->gdimg_source, 0, 0, 0, 0, $this->source_width, $this->source_height);
                     ImageDestroy($this->gdimg_source);
                     unset($this->gdimg_source);
                     $this->gdimg_source = $gdimg_newsrc;
                     unset($gdimg_newsrc);
                 } else {
                     ImageColorSet($this->gdimg_source, ImageColorTransparent($this->gdimg_source), hexdec(substr($this->config_background_hexcolor, 0, 2)), hexdec(substr($this->config_background_hexcolor, 2, 2)), hexdec(substr($this->config_background_hexcolor, 4, 2)));
                     ImageColorTransparent($this->gdimg_source, -1);
                 }
             }
             $background_color = phpthumb_functions::ImageHexColorAllocate($this->gdimg_source, $this->config_background_hexcolor);
             $this->gdimg_source = ImageRotate($this->gdimg_source, $rotate_angle, $background_color);
             $this->source_width = ImageSX($this->gdimg_source);
             $this->source_height = ImageSY($this->gdimg_source);
         }
     }
     return true;
 }
开发者ID:BackupTheBerlios,项目名称:ydframework-svn,代码行数:58,代码来源:phpthumb.class.php

示例6: Rotate


//.........这里部分代码省略.........
                                         $rotate_angle = 180;
                                         break;
                                     case 6:
                                         $rotate_angle = 270;
                                         break;
                                     case 8:
                                         $rotate_angle = 90;
                                         break;
                                     default:
                                         $this->DebugMessage('EXIF auto-rotate failed because unknown $exif_data[Orientation] "' . @$exif_data['Orientation'] . '"', __FILE__, __LINE__);
                                         return false;
                                         break;
                                 }
                                 $this->DebugMessage('EXIF auto-rotate set to ' . $rotate_angle . ' degrees ($exif_data[Orientation] = "' . @$exif_data['Orientation'] . '")', __FILE__, __LINE__);
                             } else {
                                 $this->DebugMessage('failed: exif_read_data(' . $this->sourceFilename . ')', __FILE__, __LINE__);
                                 return false;
                             }
                         } else {
                             $this->DebugMessage('!function_exists(exif_read_data)', __FILE__, __LINE__);
                             return false;
                         }
                     } else {
                         $this->DebugMessage('Cannot auto-rotate from EXIF data because $this->sourceFilename is empty', __FILE__, __LINE__);
                         return false;
                     }
                 } else {
                     $this->DebugMessage('Cannot auto-rotate from EXIF data because PHP is less than v4.2.0 (' . phpversion() . ')', __FILE__, __LINE__);
                     return false;
                 }
             } elseif ($this->ar == 'l' && $this->source_height > $this->source_width) {
                 $rotate_angle = 270;
             } elseif ($this->ar == 'L' && $this->source_height > $this->source_width) {
                 $rotate_angle = 90;
             } elseif ($this->ar == 'p' && $this->source_width > $this->source_height) {
                 $rotate_angle = 90;
             } elseif ($this->ar == 'P' && $this->source_width > $this->source_height) {
                 $rotate_angle = 270;
             }
         }
         while ($rotate_angle < 0) {
             $rotate_angle += 360;
         }
         $rotate_angle = $rotate_angle % 360;
         if ($rotate_angle != 0) {
             $background_color = phpthumb_functions::ImageHexColorAllocate($this->gdimg_source, $this->config_background_hexcolor);
             if (phpthumb_functions::gd_version() >= 2 && $this->thumbnailFormat == 'png' && !$this->bg && $rotate_angle % 90) {
                 if ($gdimg_rotate_mask = phpthumb_functions::ImageCreateFunction(ImageSX($this->gdimg_source), ImageSY($this->gdimg_source))) {
                     $this->gdimg_source = ImageRotate($this->gdimg_source, $rotate_angle, $background_color);
                     $color_mask_opaque = ImageColorAllocate($gdimg_rotate_mask, 0xff, 0xff, 0xff);
                     $color_mask_transparent = ImageColorAllocate($gdimg_rotate_mask, 0x0, 0x0, 0x0);
                     ImageFilledRectangle($gdimg_rotate_mask, 0, 0, ImageSX($gdimg_rotate_mask), ImageSY($gdimg_rotate_mask), $color_mask_opaque);
                     $gdimg_rotate_mask = ImageRotate($gdimg_rotate_mask, $rotate_angle, $color_mask_transparent);
                     ImageAlphaBlending($this->gdimg_source, false);
                     if (phpthumb_functions::version_compare_replacement(phpversion(), '4.3.2', '>=')) {
                         ImageSaveAlpha($this->gdimg_source, true);
                     }
                     $this->is_alpha = true;
                     phpthumb_filters::ApplyMask($gdimg_rotate_mask, $this->gdimg_source);
                     ImageDestroy($gdimg_rotate_mask);
                     $this->source_width = ImageSX($this->gdimg_source);
                     $this->source_height = ImageSY($this->gdimg_source);
                 } else {
                     $this->DebugMessage('ImageCreateFromStringReplacement() failed for "' . $MaskFilename . '"', __FILE__, __LINE__);
                 }
             } else {
                 if (phpthumb_functions::gd_version() >= 2) {
                     $this->DebugMessage('Using non-alpha rotate because gd_version is "' . phpthumb_functions::gd_version() . '"', __FILE__, __LINE__);
                 } else {
                     $this->DebugMessage('Using non-alpha rotate because $this->thumbnailFormat is "' . $this->thumbnailFormat . '"', __FILE__, __LINE__);
                 }
                 if (ImageColorTransparent($this->gdimg_source) >= 0) {
                     // ImageRotate() forgets all about an image's transparency and sets the transparent color to black
                     // To compensate, flood-fill the transparent color of the source image with the specified background color first
                     // then rotate and the colors should match
                     if (!function_exists('ImageIsTrueColor') || !ImageIsTrueColor($this->gdimg_source)) {
                         // convert paletted image to true-color before rotating to prevent nasty aliasing artifacts
                         $this->source_width = ImageSX($this->gdimg_source);
                         $this->source_height = ImageSY($this->gdimg_source);
                         $gdimg_newsrc = phpthumb_functions::ImageCreateFunction($this->source_width, $this->source_height);
                         $background_color = phpthumb_functions::ImageHexColorAllocate($gdimg_newsrc, $this->config_background_hexcolor);
                         ImageFilledRectangle($gdimg_newsrc, 0, 0, $this->source_width, $this->source_height, phpthumb_functions::ImageHexColorAllocate($gdimg_newsrc, $this->config_background_hexcolor));
                         ImageCopy($gdimg_newsrc, $this->gdimg_source, 0, 0, 0, 0, $this->source_width, $this->source_height);
                         ImageDestroy($this->gdimg_source);
                         unset($this->gdimg_source);
                         $this->gdimg_source = $gdimg_newsrc;
                         unset($gdimg_newsrc);
                     } else {
                         ImageColorSet($this->gdimg_source, ImageColorTransparent($this->gdimg_source), hexdec(substr($this->config_background_hexcolor, 0, 2)), hexdec(substr($this->config_background_hexcolor, 2, 2)), hexdec(substr($this->config_background_hexcolor, 4, 2)));
                         ImageColorTransparent($this->gdimg_source, -1);
                     }
                 }
                 $this->gdimg_source = ImageRotate($this->gdimg_source, $rotate_angle, $background_color);
                 $this->source_width = ImageSX($this->gdimg_source);
                 $this->source_height = ImageSY($this->gdimg_source);
             }
         }
     }
     return true;
 }
开发者ID:alanhaggai,项目名称:plogger,代码行数:101,代码来源:phpthumb.class.php

示例7: image_preview

function image_preview($path_to_primary_image, $maximum_width)
{
    //Globalize appropriate variables.
    global $CONFIG, $lang_image_processor_php, $preview_image_directory;
    //Determine thumbnail method.
    $method = $CONFIG['thumb_method'];
    if ($method == 'gd2' and !function_exists('imageistruecolor')) {
        //Set ignore imageistruecolor to false.
        $ignore = 0;
    } else {
        //Set $ignore image is true color to true.
        $ignore = 1;
    }
    // Get image info.
    $source_image_size_and_type = getimagesize($path_to_primary_image) or die($lang_image_processor_php['file_corrupt']);
    $source_image_width = $source_image_size_and_type[0];
    $source_image_height = $source_image_size_and_type[1];
    $source_image_type = $source_image_size_and_type[2];
    //We need specify the path for the transitory file.
    // Create a prefix for easier human recognition.
    $prefix = "pre_";
    //Set the correct file extension.
    if ($source_image_type == '1') {
        $suffix = '.gif';
    } elseif ($source_image_type == '2') {
        $suffix = '.jpg';
    } elseif ($source_image_type == '3') {
        $suffix = '.png';
    }
    // Generate the unique name.
    do {
        $seed = substr(md5(microtime() . getmypid()), 0, 8);
        $path_to_preview_image = $preview_image_directory . $prefix . $seed . $suffix;
    } while (file_exists($path_to_preview_image));
    //Now we can upload the file.
    // Calculate dimensions.
    if ($source_image_width > $maximum_width) {
        $new_width = (int) $maximum_width;
        $new_height = (int) ($source_image_height * ($maximum_width / $source_image_width));
    } else {
        $new_width = $source_image_width;
        $new_height = $source_image_height;
    }
    //Begin processing if GD is used.
    if ($method == "gd2" or $method == "gd1") {
        // Get image handle
        $image_handle = get_handle($path_to_primary_image);
        // Create the destination image handle.
        if ($method == "gd2") {
            if ($ignore) {
                if (ImageIsTrueColor($image_handle)) {
                    $destination_image_handle = ImageCreateTrueColor($new_width, $new_height);
                } else {
                    $destination_image_handle = ImageCreate($new_width, $new_height);
                }
            } else {
                $destination_image_handle = ImageCreate($new_width, $new_height);
            }
        } elseif ($method == "gd1") {
            $destination_image_handle = ImageCreate($new_width, $new_height);
        }
        // Resize the image
        if ($method == "gd2") {
            //Use the higher quality function imagecopyresampled.
            imagecopyresampled($destination_image_handle, $image_handle, 0, 0, 0, 0, $new_width, $new_height, $source_image_width, $source_image_height);
        } elseif ($method == "gd1") {
            //Use the lower quality imagecopyresized.
            imagecopyresized($destination_image_handle, $image_handle, 0, 0, 0, 0, $new_width, $new_height, $source_image_width, $source_image_height);
        }
        //Destroy $image_handle
        imagedestroy($image_handle);
        // Write the image to disk.
        if ($source_image_type == "2") {
            imagejpeg($destination_image_handle, $path_to_preview_image) or die($lang_image_processor_php['no_write']);
        } elseif ($source_image_type == "3") {
            imagepng($destination_image_handle, $path_to_preview_image) or die($lang_image_processor_php['no_write']);
        }
        // Destroy $destination_image_handle.
        imagedestroy($destination_image_handle);
    } elseif ($method == "im") {
        // Set IM path.
        $im_path = $CONFIG['impath'];
        //Check the IM path for the final slash.
        if (eregi('/$', $im_path) or empty($im_path)) {
            $trailing_slash = "";
        } else {
            $trailing_slash = "/";
        }
        //Determine real paths to files.
        $real_path_to_primary_image = realpath($path_to_primary_image);
        $real_path_to_preview_image = realpath($path_to_preview_image);
        // Prevent the user from creating a process zombie by aborting while IM does its work.
        ignore_user_abort(true);
        // Issue the command for resizing to IM.  Have ImageMagick write the image to disk.
        $output = array();
        $cmd = "{$CONFIG['impath']}" . $trailing_slash . "convert -geometry {$new_width}x{$new_height} \"{$real_path_to_primary_image}\" \"{$real_path_to_preview_image}\"";
        exec($cmd, $output, $retval);
        // Restore the user abort setting.
        ignore_user_abort(false);
        if ($retval) {
//.........这里部分代码省略.........
开发者ID:BackupTheBerlios,项目名称:milaninegw-svn,代码行数:101,代码来源:image_processor.php

示例8: GDtoICOstr

 function GDtoICOstr(&$gd_ico_array)
 {
     foreach ($gd_ico_array as $key => $gd_image) {
         $IcoWidths[$key] = ImageSX($gd_image);
         $IcoHeights[$key] = ImageSY($gd_image);
         $bpp[$key] = ImageIsTrueColor($gd_image) ? 32 : 24;
         $totalcolors[$key] = ImageColorsTotal($gd_image);
         $icXOR[$key] = '';
         for ($y = $IcoHeights[$key] - 1; $y >= 0; $y--) {
             for ($x = 0; $x < $IcoWidths[$key]; $x++) {
                 $argb = $this->gpc($gd_image, $x, $y);
                 $a = round(255 * ((127 - $argb['alpha']) / 127));
                 $r = $argb['red'];
                 $g = $argb['green'];
                 $b = $argb['blue'];
                 if ($bpp[$key] == 32) {
                     $icXOR[$key] .= chr($b) . chr($g) . chr($r) . chr($a);
                 } elseif ($bpp[$key] == 24) {
                     $icXOR[$key] .= chr($b) . chr($g) . chr($r);
                 }
                 if ($a < 128) {
                     @($icANDmask[$key][$y] .= '1');
                 } else {
                     @($icANDmask[$key][$y] .= '0');
                 }
             }
             while (strlen($icANDmask[$key][$y]) % 32) {
                 $icANDmask[$key][$y] .= '0';
             }
         }
         $icAND[$key] = '';
         foreach ($icANDmask[$key] as $y => $scanlinemaskbits) {
             for ($i = 0; $i < strlen($scanlinemaskbits); $i += 8) {
                 $icAND[$key] .= chr(bindec(str_pad(substr($scanlinemaskbits, $i, 8), 8, '0', STR_PAD_LEFT)));
             }
         }
     }
     foreach ($gd_ico_array as $key => $gd_image) {
         $biSizeImage = $IcoWidths[$key] * $IcoHeights[$key] * ($bpp[$key] / 8);
         $bfh[$key] = '';
         $bfh[$key] .= "(";
         $bfh[$key] .= $this->le2s($IcoWidths[$key], 4);
         $bfh[$key] .= $this->le2s($IcoHeights[$key] * 2, 4);
         $bfh[$key] .= "";
         $bfh[$key] .= chr($bpp[$key]) . "";
         $bfh[$key] .= "";
         $bfh[$key] .= $this->le2s($biSizeImage, 4);
         $bfh[$key] .= "";
         $bfh[$key] .= "";
         $bfh[$key] .= "";
         $bfh[$key] .= "";
     }
     $icondata = "";
     $icondata .= "";
     $icondata .= $this->le2s(count($gd_ico_array), 2);
     $dwImageOffset = 6 + count($gd_ico_array) * 16;
     foreach ($gd_ico_array as $key => $gd_image) {
         $icondata .= chr($IcoWidths[$key]);
         $icondata .= chr($IcoHeights[$key]);
         $icondata .= chr($totalcolors[$key]);
         $icondata .= "";
         $icondata .= "";
         $icondata .= chr($bpp[$key]) . "";
         $dwBytesInRes = 40 + strlen($icXOR[$key]) + strlen($icAND[$key]);
         $icondata .= $this->le2s($dwBytesInRes, 4);
         $icondata .= $this->le2s($dwImageOffset, 4);
         $dwImageOffset += strlen($bfh[$key]);
         $dwImageOffset += strlen($icXOR[$key]);
         $dwImageOffset += strlen($icAND[$key]);
     }
     foreach ($gd_ico_array as $key => $gd_image) {
         $icondata .= $bfh[$key];
         $icondata .= $icXOR[$key];
         $icondata .= $icAND[$key];
     }
     return $icondata;
 }
开发者ID:diandianxiyu,项目名称:ApiTesting,代码行数:77,代码来源:Iconv.php


注:本文中的ImageIsTrueColor函数示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。