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【PHP】 php在线生成ico代码
作者:javas2s.com / 发布于2011/4/26/ 803
<div><?php 
////////////////////////////////////////////////////////////// 
/// phpThumb() by James Heinrich <<a href="mailto:info@silisoftware.com">info@silisoftware.com</a>> //</div>
<div>
// available at <a href="http://phpthumb.sourceforge.net">http://phpthumb.sourceforge.net</a> /// 
////////////////////////////////////////////////////////////// 
/// // 
// phpthumb.ico.php - .ICO output format functions // 
// ///</div>
<div>
//////////////////////////////////////////////////////////////</div>
<div>
class phpthumb_ico {</div>
<div> function phpthumb_ico() { 
 return true; 
 }
<div>
 function GD2ICOstring(&$gd_image_array) { 
 foreach ($gd_image_array as $key => $gd_image) { //开源OSPhP.COM.CN</div>
<div> $ImageWidths[$key] = ImageSX($gd_image); 
 $ImageHeights[$key] = ImageSY($gd_image); 
 $bpp[$key] = ImageIsTrueColor($gd_image) ? 32 : 24;</div>
<div>
 $totalcolors[$key] = ImageColorsTotal($gd_image);</div>
<div> $icXOR[$key] = ''; 
 for ($y = $ImageHeights[$key] - 1; $y >= 0; $y--) {</div>
<div>
 for ($x = 0; $x < $ImageWidths[$key]; $x++) { 
 $argb = phpthumb_functions::GetPixelColor($gd_image, $x, $y); //OSPHP.com.CN 
 $a = round(255 * ((127 - $argb['alpha']) / 127)); 
 $r = $argb['red']; //OSPHP.com.CN 
 $g = $argb['green']; 
 $b = $argb['blue'];</div>
<div> if ($bpp[$key] == 32) { //OsPHP.COM.CN 
 $icXOR[$key] .= chr($b).chr($g).chr($r).chr($a); 
 } elseif ($bpp[$key] == 24) {</div>
<div>
 $icXOR[$key] .= chr($b).chr($g).chr($r); 
 }
<div> if ($a < 128) {</div>
<div>
 @$icANDmask[$key][$y] .= '1'; 
 } else { 
 @$icANDmask[$key][$y] .= '0'; //OSPHP.COm.CN 
 } 
 } 
 // 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, $i, 8), 8, '0', STR_PAD_LEFT)));</div>
<div>
 } 
 }
<div> }
<div> foreach ($gd_image_array as $key => $gd_image) { 
 $biSizeImage = $ImageWidths[$key] * $ImageHeights[$key] * ($bpp[$key] / 8);</div>
<div></div>
<div> // BITMAPINFOHEADER - 40 bytes 
 $BitmapInfoHeader[$key] = ''; 
 $BitmapInfoHeader[$key] .= "x28x00x00x00"; // DWORD biSize; //开源代码OSPhP.COm.CN 
 $BitmapInfoHeader[$key] .= phpthumb_functions::LittleEndian2String($ImageWidths[$key], 4); // LONG biWidth;
 // The biHeight member specifies the combined 
 // height of the XOR and AND masks.</div>
<div>
 $BitmapInfoHeader[$key] .= phpthumb_functions::LittleEndian2String($ImageHeights[$key] * 2, 4); // LONG biHeight;
 $BitmapInfoHeader[$key] .= "x01x00"; // WORD biPlanes; //OSPHP.COm.CN 
 $BitmapInfoHeader[$key] .= chr($bpp[$key])."x00"; // wBitCount;
 $BitmapInfoHeader[$key] .= "x00x00x00x00"; // DWORD biCompression; //OsPHP.COM.CN 
 $BitmapInfoHeader[$key] .= phpthumb_functions::LittleEndian2String($biSizeImage, 4); // DWORD biSizeImage;
 $BitmapInfoHeader[$key] .= "x00x00x00x00"; // LONG biXPelsPerMeter; //开源代码OSPHP.COM.Cn 
 $BitmapInfoHeader[$key] .= "x00x00x00x00"; // LONG biYPelsPerMeter;
 $BitmapInfoHeader[$key] .= "x00x00x00x00"; // DWORD biClrUsed; 
 $BitmapInfoHeader[$key] .= "x00x00x00x00"; // DWORD biClrImportant;
 }
<div>
 $icondata = "x00x00"; // idReserved; // Reserved (must be 0) //PHP开源代码 
 $icondata .= "x01x00"; // idType; // Resource Type (1 for icons)
 $icondata .= phpthumb_functions::LittleEndian2String(count($gd_image_array), 2); // idCount; // How many images? //PHP开源代码</div>
<div> $dwImageOffset = 6 + (count($gd_image_array) * 16); 
 foreach ($gd_image_array as $key => $gd_image) { 
 // ICONDIRENTRY idEntries[1]; // An entry for each image (idCount of 'em)</div>
<div></div>
<div> $icondata .= chr($ImageWidths[$key]); // bWidth; // Width, in pixels, of the image
 $icondata .= chr($ImageHeights[$key]); // bHeight; // Height, in pixels, of the image //开源代码OSPhP.COm.CN 
 $icondata .= chr($totalcolors[$key]); // bColorCount; // Number of colors in image (0 if >=8bpp)
 $icondata .= "x00"; // bReserved; // Reserved ( must be 0)</div>
<div></div>
<div> $icondata .= "x01x00"; // wPlanes; // Color Planes
 $icondata .= chr($bpp[$key])."x00"; // wBitCount; // Bits per pixel //开源OSPhP.COM.CN</div>
<div> $dwBytesInRes = 40 + strlen($icXOR[$key]) + strlen($icAND[$key]); 
 $icondata .= phpthumb_functions::LittleEndian2String($dwBytesInRes, 4); // dwBytesInRes; // How many bytes in this resource?</div>
<div></div>
<div> $icondata .= phpthumb_functions::LittleEndian2String($dwImageOffset, 4); // dwImageOffset; // Where in the file is this image?
 $dwImageOffset += strlen($BitmapInfoHeader[$key]);</div>
<div>
 $dwImageOffset += strlen($icXOR[$key]); 
 $dwImageOffset += strlen($icAND[$key]); 
 }
<div> foreach ($gd_image_array as $key => $gd_image) { //开源代码OSPHP.COM.Cn 
 $icondata .= $BitmapInfoHeader[$key]; 
 $icondata .= $icXOR[$key]; 
 $icondata .= $icAND[$key]; 
 }
<div> return $icondata; 
 }
<div>}
<div>?> 
</div>
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