зеркало из https://github.com/mozilla/pjs.git
r=mkaply, sr=mkaply (platform specific), a=mkaply (OS/2 only) Patch from Rich Walsh - rewrite OS/2 icon code to fix some color corruption and overall cleanup
This commit is contained in:
Родитель
bd6a46d8d3
Коммит
039a061f6a
|
@ -24,6 +24,7 @@
|
||||||
* Scott MacGregor <mscott@netscape.com>
|
* Scott MacGregor <mscott@netscape.com>
|
||||||
* Neil Rashbrook <neil@parkwaycc.co.uk>
|
* Neil Rashbrook <neil@parkwaycc.co.uk>
|
||||||
* IBM Corp.
|
* IBM Corp.
|
||||||
|
* Rich Walsh <dragtext@e-vertise.com>
|
||||||
*
|
*
|
||||||
* Alternatively, the contents of this file may be used under the terms of
|
* Alternatively, the contents of this file may be used under the terms of
|
||||||
* either the GNU General Public License Version 2 or later (the "GPL"), or
|
* either the GNU General Public License Version 2 or later (the "GPL"), or
|
||||||
|
@ -39,50 +40,41 @@
|
||||||
*
|
*
|
||||||
* ***** END LICENSE BLOCK ***** */
|
* ***** END LICENSE BLOCK ***** */
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------
|
||||||
|
|
||||||
#include "nsIconChannel.h"
|
#include "nsIconChannel.h"
|
||||||
#include "nsIIconURI.h"
|
#include "nsIIconURI.h"
|
||||||
#include "nsIServiceManager.h"
|
|
||||||
#include "nsIInterfaceRequestor.h"
|
|
||||||
#include "nsIInterfaceRequestorUtils.h"
|
|
||||||
#include "nsXPIDLString.h"
|
|
||||||
#include "nsReadableUtils.h"
|
#include "nsReadableUtils.h"
|
||||||
#include "nsMimeTypes.h"
|
|
||||||
#include "nsMemory.h"
|
#include "nsMemory.h"
|
||||||
#include "nsIStringStream.h"
|
|
||||||
#include "nsIURL.h"
|
|
||||||
#include "nsNetUtil.h"
|
#include "nsNetUtil.h"
|
||||||
#include "nsInt64.h"
|
#include "nsInt64.h"
|
||||||
#include "nsIFile.h"
|
#include "nsIFile.h"
|
||||||
#include "nsIFileURL.h"
|
#include "nsIFileURL.h"
|
||||||
#include "nsIMIMEService.h"
|
#include "nsDirectoryServiceDefs.h"
|
||||||
#include "nsCExternalHandlerService.h"
|
|
||||||
|
|
||||||
#define INCL_WINWORKPLACE
|
|
||||||
#define INCL_WIN
|
|
||||||
#define INCL_PM
|
#define INCL_PM
|
||||||
#define INCL_DEV
|
|
||||||
#define INCL_GPI
|
|
||||||
#include <os2.h>
|
#include <os2.h>
|
||||||
#include <stdlib.h> // for getenv
|
|
||||||
|
|
||||||
// From Windows
|
//------------------------------------------------------------------------
|
||||||
#define SHGFI_ICON 0x0001
|
|
||||||
#define SHGFI_USEFILEATTRIBUTES 0x0002
|
|
||||||
#define SHGFI_LARGEICON 0x0004
|
|
||||||
#define SHGFI_SMALLICON 0x0008
|
|
||||||
|
|
||||||
// Due to byte swap the second is first of the pair
|
// Due to byte swap, the second nibble is the first pixel of the pair
|
||||||
#define FIRSTPEL(x) (0xF & (x >> 4))
|
#define FIRSTPEL(x) (0xF & (x >> 4))
|
||||||
#define SECONDPEL(x) (0xF & x)
|
#define SECONDPEL(x) (0xF & x)
|
||||||
|
|
||||||
// forward declarations of a couple of helper methods.
|
// nbr of bytes per row, rounded up to the nearest dword boundary
|
||||||
// Takes a bitmap from the windows registry and converts it into 4 byte RGB data.
|
#define ALIGNEDBPR(cx,bits) ((( ((cx)*(bits)) + 31) / 32) * 4)
|
||||||
void ConvertColorBitMap(PBYTE aBitmapBuffer, PBITMAPINFO2 pBitMapInfo, nsCString& iconBuffer);
|
|
||||||
void ConvertMaskBitMap(PBYTE aBitMaskBuffer, PBITMAPINFO2 pBitMapInfo, nsCString& iconBuffer);
|
|
||||||
PRUint32 CalcWordAlignedRowSpan(PRUint32 aWidth, PRUint32 aBitCount);
|
|
||||||
|
|
||||||
|
// native icon functions
|
||||||
|
HPOINTER GetFileIcon(nsCString& file, PRBool fExists);
|
||||||
|
|
||||||
|
void ConvertColorBitMap(PRUint8* inBuf, PBITMAPINFO2 pBMInfo, PRUint8* outBuf);
|
||||||
|
void ShrinkColorBitMap(PRUint8* inBuf, PBITMAPINFO2 pBMInfo, PRUint8* outBuf);
|
||||||
|
void ConvertMaskBitMap(PRUint8* inBuf, PBITMAPINFO2 pBMInfo, PRUint8* outBuf);
|
||||||
|
void ShrinkMaskBitMap(PRUint8* inBuf, PBITMAPINFO2 pBMInfo, PRUint8* outBuf);
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------
|
||||||
// nsIconChannel methods
|
// nsIconChannel methods
|
||||||
|
|
||||||
nsIconChannel::nsIconChannel()
|
nsIconChannel::nsIconChannel()
|
||||||
{
|
{
|
||||||
}
|
}
|
||||||
|
@ -106,7 +98,7 @@ nsresult nsIconChannel::Init(nsIURI* uri)
|
||||||
return rv;
|
return rv;
|
||||||
}
|
}
|
||||||
|
|
||||||
////////////////////////////////////////////////////////////////////////////////
|
//------------------------------------------------------------------------
|
||||||
// nsIRequest methods:
|
// nsIRequest methods:
|
||||||
|
|
||||||
NS_IMETHODIMP nsIconChannel::GetName(nsACString &result)
|
NS_IMETHODIMP nsIconChannel::GetName(nsACString &result)
|
||||||
|
@ -162,7 +154,7 @@ NS_IMETHODIMP nsIconChannel::SetLoadFlags(PRUint32 aLoadAttributes)
|
||||||
return mPump->SetLoadFlags(aLoadAttributes);
|
return mPump->SetLoadFlags(aLoadAttributes);
|
||||||
}
|
}
|
||||||
|
|
||||||
////////////////////////////////////////////////////////////////////////////////
|
//------------------------------------------------------------------------
|
||||||
// nsIChannel methods:
|
// nsIChannel methods:
|
||||||
|
|
||||||
NS_IMETHODIMP nsIconChannel::GetOriginalURI(nsIURI* *aURI)
|
NS_IMETHODIMP nsIconChannel::GetOriginalURI(nsIURI* *aURI)
|
||||||
|
@ -191,26 +183,27 @@ nsIconChannel::Open(nsIInputStream **_retval)
|
||||||
return MakeInputStream(_retval, PR_FALSE);
|
return MakeInputStream(_retval, PR_FALSE);
|
||||||
}
|
}
|
||||||
|
|
||||||
void InvertRows(PBYTE aInitialBuffer, PRUint32 sizeOfBuffer, PRUint32 numBytesPerRow)
|
NS_IMETHODIMP nsIconChannel::AsyncOpen(nsIStreamListener *aListener, nsISupports *ctxt)
|
||||||
{
|
{
|
||||||
if (!numBytesPerRow) return;
|
nsCOMPtr<nsIInputStream> inStream;
|
||||||
|
nsresult rv = MakeInputStream(getter_AddRefs(inStream), PR_TRUE);
|
||||||
|
if (NS_FAILED(rv))
|
||||||
|
return rv;
|
||||||
|
|
||||||
PRUint32 numRows = sizeOfBuffer / numBytesPerRow;
|
// Init our streampump
|
||||||
void * temporaryRowHolder = (void *) nsMemory::Alloc(numBytesPerRow);
|
rv = mPump->Init(inStream, nsInt64(-1), nsInt64(-1), 0, 0, PR_FALSE);
|
||||||
|
if (NS_FAILED(rv))
|
||||||
|
return rv;
|
||||||
|
|
||||||
PRUint32 currentRow = 0;
|
rv = mPump->AsyncRead(this, ctxt);
|
||||||
PRUint32 lastRow = (numRows - 1) * numBytesPerRow;
|
if (NS_SUCCEEDED(rv)) {
|
||||||
while (currentRow < lastRow)
|
// Store our real listener
|
||||||
{
|
mListener = aListener;
|
||||||
// store the current row into a temporary buffer
|
// Add ourself to the load group, if available
|
||||||
memcpy(temporaryRowHolder, (void *) &aInitialBuffer[currentRow], numBytesPerRow);
|
if (mLoadGroup)
|
||||||
memcpy((void *) &aInitialBuffer[currentRow], (void *)&aInitialBuffer[lastRow], numBytesPerRow);
|
mLoadGroup->AddRequest(this, nsnull);
|
||||||
memcpy((void *) &aInitialBuffer[lastRow], temporaryRowHolder, numBytesPerRow);
|
|
||||||
lastRow -= numBytesPerRow;
|
|
||||||
currentRow += numBytesPerRow;
|
|
||||||
}
|
}
|
||||||
|
return rv;
|
||||||
nsMemory::Free(temporaryRowHolder);
|
|
||||||
}
|
}
|
||||||
|
|
||||||
nsresult nsIconChannel::ExtractIconInfoFromUrl(nsIFile ** aLocalFile, PRUint32 * aDesiredImageSize, nsACString &aContentType, nsACString &aFileExtension)
|
nsresult nsIconChannel::ExtractIconInfoFromUrl(nsIFile ** aLocalFile, PRUint32 * aDesiredImageSize, nsACString &aContentType, nsACString &aFileExtension)
|
||||||
|
@ -239,396 +232,410 @@ nsresult nsIconChannel::ExtractIconInfoFromUrl(nsIFile ** aLocalFile, PRUint32 *
|
||||||
return NS_OK;
|
return NS_OK;
|
||||||
}
|
}
|
||||||
|
|
||||||
INT AddBGR(PRGB2 pColorTableEntry, nsCString& iconBuffer)
|
//------------------------------------------------------------------------
|
||||||
{
|
|
||||||
iconBuffer.Append((char) pColorTableEntry->bBlue);
|
|
||||||
iconBuffer.Append((char) pColorTableEntry->bGreen);
|
|
||||||
iconBuffer.Append((char) pColorTableEntry->bRed);
|
|
||||||
return 3;
|
|
||||||
}
|
|
||||||
|
|
||||||
void ConvertColorBitMap(PBYTE buffer, PBITMAPINFO2 pBitMapInfo, nsCString& iconBuffer)
|
// retrieves a native icon with 16, 256, or 16M colors and converts it
|
||||||
{
|
// to 24-bit BGR with 1-bit alpha data (BGR_A1 format); Note: this
|
||||||
// windows inverts the row order in their bitmaps. So we need to invert the rows back into a top-down order.
|
// implementation ignores the file's MIME-type because using it virtually
|
||||||
|
// guarantees we'll end up with an inappropriate icon (i.e. an .exe icon)
|
||||||
PRUint32 bytesPerPixel = pBitMapInfo->cBitCount / 8;
|
|
||||||
PRUint32 unalignedBytesPerRowRGB = pBitMapInfo->cx * 3;
|
|
||||||
PRInt32 iScanLineSize = pBitMapInfo->cSize1; // Stored early
|
|
||||||
PRInt32 iIter;
|
|
||||||
|
|
||||||
InvertRows(buffer, pBitMapInfo->cbImage, iScanLineSize);
|
|
||||||
|
|
||||||
PRUint32 alignedBytesPerRowRGB = CalcWordAlignedRowSpan(pBitMapInfo->cx, 24);
|
|
||||||
PRUint32 numBytesPaddingPerRowRGB = alignedBytesPerRowRGB - unalignedBytesPerRowRGB;
|
|
||||||
PRUint32 pos = 0;
|
|
||||||
if (numBytesPaddingPerRowRGB < 0) // this should never happen.....
|
|
||||||
numBytesPaddingPerRowRGB = 0;
|
|
||||||
|
|
||||||
PRGB2 pColorTable = &pBitMapInfo->argbColor[0]; // Note Color tables are only valid for 1, 4, 8 BPP maps
|
|
||||||
|
|
||||||
PRUint32 index = 0;
|
|
||||||
|
|
||||||
// Many OS2 Icons are 16 colors or 4 BPP so we need to map the colors to RGB
|
|
||||||
if (pBitMapInfo->cBitCount == 4 ||
|
|
||||||
pBitMapInfo->cBitCount == 8 )
|
|
||||||
{
|
|
||||||
PBYTE pPelPair;
|
|
||||||
PBYTE pPel;
|
|
||||||
if (pBitMapInfo->cBitCount == 4)
|
|
||||||
{
|
|
||||||
iIter = (pBitMapInfo->cx + 1) / 2; // Have 1/2 bytes as pels per row
|
|
||||||
}
|
|
||||||
else
|
|
||||||
{
|
|
||||||
iIter = pBitMapInfo->cx; // Bytes = Pels
|
|
||||||
}
|
|
||||||
for (ULONG j = 0; j < pBitMapInfo->cy; j++) //Number of rows
|
|
||||||
{
|
|
||||||
pPelPair = buffer;
|
|
||||||
pPel = (PBYTE)buffer;
|
|
||||||
for(INT i = 0; i < iIter; i++)
|
|
||||||
{
|
|
||||||
|
|
||||||
if (pBitMapInfo->cBitCount == 4)
|
|
||||||
{
|
|
||||||
AddBGR(&pColorTable[FIRSTPEL(*pPelPair)], iconBuffer);
|
|
||||||
AddBGR(&pColorTable[SECONDPEL(*pPelPair)], iconBuffer);
|
|
||||||
pPelPair++;
|
|
||||||
}
|
|
||||||
else
|
|
||||||
{
|
|
||||||
AddBGR(&pColorTable[*pPel], iconBuffer);
|
|
||||||
pPel++;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
if (numBytesPaddingPerRowRGB)
|
|
||||||
{
|
|
||||||
for (PRUint32 k = 0; k < numBytesPaddingPerRowRGB; k++)
|
|
||||||
{
|
|
||||||
iconBuffer.Append((char) 0);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
buffer += iScanLineSize;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
//else
|
|
||||||
//// if each pixel uses 16 bits to describe the color then each R, G, and B value uses 5 bites. Use some fancy
|
|
||||||
//// bit operations to blow up the 16 bit case into 1 byte per component color. Actually windows
|
|
||||||
//// is using a 5:6:5 scheme. so the green component gets 6 bits....
|
|
||||||
//if (pBitMapInfo->cBitCount == 16)
|
|
||||||
//{
|
|
||||||
// PRUint8 redValue, greenValue, blueValue;
|
|
||||||
// while (index < pBitMapInfo->cbImage)
|
|
||||||
// {
|
|
||||||
// PRUint16 num = 0;
|
|
||||||
// num = (PRUint8) buffer[index+1];
|
|
||||||
// num <<= 8;
|
|
||||||
// num |= (PRUint8) buffer[index];
|
|
||||||
// // be sure to ignore the top bit
|
|
||||||
// //num &= 0x7FFF; // only want the low 15 bits.....not the 16th...
|
|
||||||
//
|
|
||||||
// // use num as an offset into the color table....get the RGBQuad entry and read out
|
|
||||||
// // the RGB values.
|
|
||||||
// //RGBQUAD rgbValues = pBitMapInfo->bmiColors[num];
|
|
||||||
//
|
|
||||||
// //redValue = ( (num & 0xf800) >> 11);
|
|
||||||
// //greenValue = ( (num & 0x07E0) >> 5);
|
|
||||||
// //blueValue = ( num & 0x001F);
|
|
||||||
//
|
|
||||||
// redValue = ((PRUint32) (((float)(num & 0xf800) / 0xf800) * 0xFF0000) & 0xFF0000)>> 16;
|
|
||||||
// greenValue = ((PRUint32)(((float)(num & 0x07E0) / 0x07E0) * 0x00FF00) & 0x00FF00)>> 8;
|
|
||||||
// blueValue = ((PRUint32)(((float)(num & 0x001F) / 0x001F) * 0x0000FF) & 0x0000FF);
|
|
||||||
//
|
|
||||||
// // now we have the right RGB values...
|
|
||||||
// iconBuffer.Append((char) blueValue);
|
|
||||||
// iconBuffer.Append((char) greenValue);
|
|
||||||
// iconBuffer.Append((char) redValue);
|
|
||||||
// pos += 3;
|
|
||||||
// if (pos == unalignedBytesPerRow && numBytesPaddingPerRow) // if we have reached the end of a current row, add padding to force dword alignment
|
|
||||||
// {
|
|
||||||
// pos = 0;
|
|
||||||
// for (PRUint32 i = 0; i < numBytesPaddingPerRow; i++)
|
|
||||||
// {
|
|
||||||
// iconBuffer.Append((char) 0);
|
|
||||||
// }
|
|
||||||
// }
|
|
||||||
// index += bytesPerPixel;
|
|
||||||
// }
|
|
||||||
//}
|
|
||||||
else // otherwise we must be using 32 bits per pixel so each component value is getting one byte...
|
|
||||||
{
|
|
||||||
while (index < pBitMapInfo->cbImage)
|
|
||||||
{
|
|
||||||
iconBuffer.Append((char) buffer[index]);
|
|
||||||
iconBuffer.Append((char) buffer[index+1]);
|
|
||||||
iconBuffer.Append((char) buffer[index+2]);
|
|
||||||
pos += 3;
|
|
||||||
if (pos == unalignedBytesPerRowRGB && numBytesPaddingPerRowRGB) // if we have reached the end of a current row, add padding to force dword alignment
|
|
||||||
{
|
|
||||||
pos = 0;
|
|
||||||
for (PRUint32 i = 0; i < numBytesPaddingPerRowRGB; i++)
|
|
||||||
{
|
|
||||||
iconBuffer.Append((char) 0);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
index += bytesPerPixel;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
PRUint32 CalcWordAlignedRowSpan(PRUint32 aWidth, PRUint32 aBitCount)
|
|
||||||
{
|
|
||||||
PRUint32 spanBytes;
|
|
||||||
|
|
||||||
spanBytes = (aWidth * aBitCount) >> 5;
|
|
||||||
|
|
||||||
if (((PRUint32) aWidth * aBitCount) & 0x1F)
|
|
||||||
spanBytes++;
|
|
||||||
|
|
||||||
spanBytes <<= 2;
|
|
||||||
|
|
||||||
return spanBytes;
|
|
||||||
}
|
|
||||||
|
|
||||||
void ConvertMaskBitMap(PBYTE aBitMaskBuffer, PBITMAPINFO2 pBitMapInfo, nsCString& iconBuffer)
|
|
||||||
{
|
|
||||||
PRInt32 iScanLineSize = pBitMapInfo->cSize1; // Stored early
|
|
||||||
|
|
||||||
InvertRows(aBitMaskBuffer, pBitMapInfo->cbImage, iScanLineSize);
|
|
||||||
PRUint32 index = 0;
|
|
||||||
// for some reason the bit mask on windows are flipped from the values we really want for transparency.
|
|
||||||
// So complement each byte in the bit mask.
|
|
||||||
while (index < pBitMapInfo->cbImage)
|
|
||||||
{
|
|
||||||
aBitMaskBuffer[index]^=255;
|
|
||||||
index += 1;
|
|
||||||
}
|
|
||||||
iconBuffer.Append((char *) aBitMaskBuffer, pBitMapInfo->cbImage);
|
|
||||||
}
|
|
||||||
|
|
||||||
NS_IMETHODIMP nsIconChannel::AsyncOpen(nsIStreamListener *aListener, nsISupports *ctxt)
|
|
||||||
{
|
|
||||||
nsCOMPtr<nsIInputStream> inStream;
|
|
||||||
nsresult rv = MakeInputStream(getter_AddRefs(inStream), PR_TRUE);
|
|
||||||
if (NS_FAILED(rv))
|
|
||||||
return rv;
|
|
||||||
|
|
||||||
// Init our streampump
|
|
||||||
rv = mPump->Init(inStream, nsInt64(-1), nsInt64(-1), 0, 0, PR_FALSE);
|
|
||||||
if (NS_FAILED(rv))
|
|
||||||
return rv;
|
|
||||||
|
|
||||||
rv = mPump->AsyncRead(this, ctxt);
|
|
||||||
if (NS_SUCCEEDED(rv)) {
|
|
||||||
// Store our real listener
|
|
||||||
mListener = aListener;
|
|
||||||
// Add ourself to the load group, if available
|
|
||||||
if (mLoadGroup)
|
|
||||||
mLoadGroup->AddRequest(this, nsnull);
|
|
||||||
}
|
|
||||||
return rv;
|
|
||||||
}
|
|
||||||
|
|
||||||
nsresult nsIconChannel::MakeInputStream(nsIInputStream** _retval, PRBool nonBlocking)
|
nsresult nsIconChannel::MakeInputStream(nsIInputStream** _retval, PRBool nonBlocking)
|
||||||
{
|
{
|
||||||
|
// get some details about this icon
|
||||||
|
nsCOMPtr<nsIFile> localFile;
|
||||||
|
PRUint32 desiredImageSize;
|
||||||
nsXPIDLCString contentType;
|
nsXPIDLCString contentType;
|
||||||
nsCAutoString filePath;
|
nsCAutoString filePath;
|
||||||
nsCOMPtr<nsIFile> localFile; // file we want an icon for
|
|
||||||
PRUint32 desiredImageSize;
|
|
||||||
nsresult rv = ExtractIconInfoFromUrl(getter_AddRefs(localFile), &desiredImageSize, contentType, filePath);
|
nsresult rv = ExtractIconInfoFromUrl(getter_AddRefs(localFile), &desiredImageSize, contentType, filePath);
|
||||||
NS_ENSURE_SUCCESS(rv, rv);
|
NS_ENSURE_SUCCESS(rv, rv);
|
||||||
|
|
||||||
// if the file exists, we are going to use it's real attributes...otherwise we only want to use it for it's extension...
|
// if the file exists, get its path
|
||||||
UINT infoFlags = SHGFI_ICON;
|
|
||||||
|
|
||||||
PRBool fileExists = PR_FALSE;
|
PRBool fileExists = PR_FALSE;
|
||||||
|
if (localFile) {
|
||||||
if (localFile)
|
|
||||||
{
|
|
||||||
localFile->GetNativePath(filePath);
|
localFile->GetNativePath(filePath);
|
||||||
localFile->Exists(&fileExists);
|
localFile->Exists(&fileExists);
|
||||||
}
|
}
|
||||||
|
|
||||||
if (!fileExists)
|
// get the icon from the file
|
||||||
infoFlags |= SHGFI_USEFILEATTRIBUTES;
|
HPOINTER hIcon = GetFileIcon(filePath, fileExists);
|
||||||
|
|
||||||
if (desiredImageSize > 16)
|
|
||||||
infoFlags |= SHGFI_LARGEICON;
|
|
||||||
else
|
|
||||||
infoFlags |= SHGFI_SMALLICON;
|
|
||||||
|
|
||||||
// if we have a content type... then use it! but for existing files, we want
|
|
||||||
// to show their real icon.
|
|
||||||
if (!fileExists && !contentType.IsEmpty())
|
|
||||||
{
|
|
||||||
nsCOMPtr<nsIMIMEService> mimeService (do_GetService(NS_MIMESERVICE_CONTRACTID, &rv));
|
|
||||||
NS_ENSURE_SUCCESS(rv, rv);
|
|
||||||
|
|
||||||
nsCAutoString fileExt;
|
|
||||||
mimeService->GetPrimaryExtension(contentType, EmptyCString(), fileExt);
|
|
||||||
// If the mime service does not know about this mime type, we show
|
|
||||||
// the generic icon.
|
|
||||||
// In any case, we need to insert a '.' before the extension.
|
|
||||||
filePath = NS_LITERAL_CSTRING(".") + fileExt;
|
|
||||||
}
|
|
||||||
|
|
||||||
// (1) get an hIcon for the file
|
|
||||||
PSZ pszFileName = (PSZ)filePath.get();
|
|
||||||
HPOINTER hIcon = WinLoadFileIcon(pszFileName, FALSE);
|
|
||||||
if ((hIcon == NULLHANDLE) && (pszFileName[0] == '.')) {
|
|
||||||
/* Just trying to get an icon for an extension */
|
|
||||||
/* Create a temporary file to try to get an icon */
|
|
||||||
char* tmpdir = getenv("TMP");
|
|
||||||
if (tmpdir) {
|
|
||||||
char tmpfile[CCHMAXPATH];
|
|
||||||
strcpy(tmpfile, tmpdir);
|
|
||||||
strcat(tmpfile, pszFileName);
|
|
||||||
FILE* fp = fopen(tmpfile, "wb+");
|
|
||||||
if (fp) {
|
|
||||||
fclose(fp);
|
|
||||||
hIcon = WinLoadFileIcon(tmpfile, FALSE);
|
|
||||||
remove(tmpfile);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
if (hIcon == NULLHANDLE)
|
if (hIcon == NULLHANDLE)
|
||||||
return NS_ERROR_FAILURE;
|
return NS_ERROR_FAILURE;
|
||||||
// we got a handle to an icon. Now we want to get a bitmap for the icon using GetIconInfo....
|
|
||||||
|
// get the color & mask bitmaps used by the icon
|
||||||
POINTERINFO IconInfo;
|
POINTERINFO IconInfo;
|
||||||
BOOL fRC = WinQueryPointerInfo(hIcon, &IconInfo);
|
if (!WinQueryPointerInfo(hIcon, &IconInfo)) {
|
||||||
if (fRC == 0) {
|
WinFreeFileIcon( hIcon);
|
||||||
WinFreeFileIcon(hIcon);
|
|
||||||
return NS_ERROR_FAILURE;
|
|
||||||
}
|
|
||||||
nsCString iconBuffer;
|
|
||||||
BITMAPINFOHEADER2 BMHeader;
|
|
||||||
HBITMAP hBitmap;
|
|
||||||
HBITMAP hBitmapMask;
|
|
||||||
|
|
||||||
// Decide which icon to use
|
|
||||||
if ( infoFlags & SHGFI_LARGEICON )
|
|
||||||
{
|
|
||||||
hBitmap = IconInfo.hbmColor;
|
|
||||||
hBitmapMask = IconInfo.hbmPointer;
|
|
||||||
}
|
|
||||||
else
|
|
||||||
{
|
|
||||||
hBitmap = IconInfo.hbmMiniColor;
|
|
||||||
hBitmapMask = IconInfo.hbmMiniPointer;
|
|
||||||
}
|
|
||||||
|
|
||||||
// Get the basic info
|
|
||||||
BMHeader.cbFix = sizeof(BMHeader);
|
|
||||||
fRC = GpiQueryBitmapInfoHeader(hBitmap, &BMHeader);
|
|
||||||
if (fRC == 0) {
|
|
||||||
WinFreeFileIcon(hIcon);
|
|
||||||
return NS_ERROR_FAILURE;
|
return NS_ERROR_FAILURE;
|
||||||
}
|
}
|
||||||
|
|
||||||
///// // Calulate size of color table
|
// if we need a mini-icon, use those bitmaps if present;
|
||||||
///// LONG cbColorTable;
|
// otherwise, signal that the icon needs to be shrunk
|
||||||
///// if ( BMHeader.cBitCount > 8 )
|
PRBool fShrink = FALSE;
|
||||||
///// {
|
if (desiredImageSize <= 16) {
|
||||||
///// cbColorTable = 0;
|
if (IconInfo.hbmMiniPointer) {
|
||||||
///// }
|
IconInfo.hbmColor = IconInfo.hbmMiniColor;
|
||||||
///// else
|
IconInfo.hbmPointer = IconInfo.hbmMiniPointer;
|
||||||
///// {
|
|
||||||
///// cbColorTable = 1 << BMHeader.cBitCount;
|
|
||||||
///// }
|
|
||||||
LONG cbBitMapInfo = sizeof(BITMAPINFO2) + (sizeof(RGB2) * 255); // Max possible
|
|
||||||
LONG iScanLineSize = ((BMHeader.cBitCount * BMHeader.cx + 31) / 32) * 4;
|
|
||||||
LONG cbBuffer = iScanLineSize * BMHeader.cy;
|
|
||||||
// Allocate buffers, fill w/ 0
|
|
||||||
PBITMAPINFO2 pBitMapInfo = (PBITMAPINFO2)nsMemory::Alloc(cbBitMapInfo);
|
|
||||||
memset(pBitMapInfo, 0, cbBitMapInfo);
|
|
||||||
PBYTE buffer = (PBYTE)nsMemory::Alloc(cbBuffer);
|
|
||||||
memset(buffer, 0, cbBuffer);
|
|
||||||
// Copy over the header info
|
|
||||||
*((PBITMAPINFOHEADER2)pBitMapInfo ) = BMHeader;
|
|
||||||
|
|
||||||
// Create DC
|
|
||||||
DEVOPENSTRUC dop = {NULL, "DISPLAY", NULL, NULL, NULL, NULL, NULL, NULL, NULL};
|
|
||||||
HDC hdc = DevOpenDC( (HAB)0, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&dop, NULLHANDLE);
|
|
||||||
SIZEL sizel = {0,0};
|
|
||||||
HPS hps = GpiCreatePS((HAB)0, hdc, &sizel, GPIA_ASSOC | PU_PELS | GPIT_MICRO);
|
|
||||||
|
|
||||||
// Not sure if you need this but it is good form
|
|
||||||
HBITMAP hOldBM = GpiSetBitmap(hps, hBitmap);
|
|
||||||
|
|
||||||
// Get those bits
|
|
||||||
LONG lScanLines = GpiQueryBitmapBits(hps, 0L, (LONG)BMHeader.cy, buffer, pBitMapInfo);
|
|
||||||
if (lScanLines > 0)
|
|
||||||
{
|
|
||||||
// Set this since it is used all over
|
|
||||||
pBitMapInfo->cbImage = cbBuffer;
|
|
||||||
pBitMapInfo->cSize1 = iScanLineSize;
|
|
||||||
|
|
||||||
// temporary hack alert...currently moz-icon urls only support 16, 24 and 32 bit color. we don't support
|
|
||||||
// 8, 4 or 1 bit color yet. So convert OS/2 4 BPP to RGB
|
|
||||||
|
|
||||||
// The first 2 bytes into our output buffer needs to be the width and the height (in pixels) of the icon
|
|
||||||
// as specified by our data format.
|
|
||||||
iconBuffer.Assign((char) pBitMapInfo->cx);
|
|
||||||
iconBuffer.Append((char) pBitMapInfo->cy);
|
|
||||||
|
|
||||||
ConvertColorBitMap(buffer, pBitMapInfo, iconBuffer);
|
|
||||||
|
|
||||||
// now we need to tack on the alpha data...which is hbmMask
|
|
||||||
|
|
||||||
memset(pBitMapInfo, 0, cbBitMapInfo);
|
|
||||||
BMHeader.cbFix = sizeof(BMHeader);
|
|
||||||
fRC = GpiQueryBitmapInfoHeader(hBitmapMask, &BMHeader);
|
|
||||||
iScanLineSize = ((BMHeader.cBitCount * BMHeader.cx + 31) / 32) * 4;
|
|
||||||
LONG cbBufferMask = iScanLineSize * BMHeader.cy;
|
|
||||||
if (cbBufferMask > cbBuffer) // Need more for mask
|
|
||||||
{
|
|
||||||
nsMemory::Free(buffer);
|
|
||||||
buffer = (PBYTE)nsMemory::Alloc(cbBufferMask);
|
|
||||||
memset(buffer, 0, cbBufferMask);
|
|
||||||
}
|
}
|
||||||
|
else
|
||||||
|
fShrink = TRUE;
|
||||||
|
}
|
||||||
|
|
||||||
*((PBITMAPINFOHEADER2)pBitMapInfo ) = BMHeader;
|
// various resources to be allocated
|
||||||
hOldBM = GpiSetBitmap(hps, hBitmapMask);
|
PBITMAPINFO2 pBMInfo = 0;
|
||||||
|
PRUint8* pInBuf = 0;
|
||||||
|
PRUint8* pOutBuf = 0;
|
||||||
|
HDC hdc = 0;
|
||||||
|
HPS hps = 0;
|
||||||
|
|
||||||
lScanLines = GpiQueryBitmapBits(hps, 0L, (LONG)BMHeader.cy, buffer, pBitMapInfo);
|
// using this dummy do{...}while(0) "loop" guarantees resources will
|
||||||
if (lScanLines > 0)
|
// be deallocated, eliminates the need for nesting, and generally makes
|
||||||
|
// testing for & dealing with errors pretty painless (just 'break')
|
||||||
|
do {
|
||||||
|
rv = NS_ERROR_FAILURE;
|
||||||
|
|
||||||
|
// get the details for the color bitmap; if there isn't one
|
||||||
|
// or this is 1-bit color, exit
|
||||||
|
BITMAPINFOHEADER2 BMHeader;
|
||||||
|
BMHeader.cbFix = sizeof(BMHeader);
|
||||||
|
if (!IconInfo.hbmColor ||
|
||||||
|
!GpiQueryBitmapInfoHeader(IconInfo.hbmColor, &BMHeader) ||
|
||||||
|
BMHeader.cBitCount == 1)
|
||||||
|
break;
|
||||||
|
|
||||||
|
// alloc space for the color bitmap's info, including its color table
|
||||||
|
PRUint32 cbBMInfo = sizeof(BITMAPINFO2) + (sizeof(RGB2) * 255);
|
||||||
|
pBMInfo = (PBITMAPINFO2)nsMemory::Alloc(cbBMInfo);
|
||||||
|
if (!pBMInfo)
|
||||||
|
break;
|
||||||
|
|
||||||
|
// alloc space for the color bitmap data
|
||||||
|
PRUint32 cbInRow = ALIGNEDBPR( BMHeader.cx, BMHeader.cBitCount);
|
||||||
|
PRUint32 cbInBuf = cbInRow * BMHeader.cy;
|
||||||
|
pInBuf = (PRUint8*)nsMemory::Alloc(cbInBuf);
|
||||||
|
if (!pInBuf)
|
||||||
|
break;
|
||||||
|
memset( pInBuf, 0, cbInBuf);
|
||||||
|
|
||||||
|
// alloc space for the 24-bit BGR_A1 bitmap we're creating
|
||||||
|
PRUint32 cxOut = (fShrink ? BMHeader.cx / 2 : BMHeader.cx);
|
||||||
|
PRUint32 cyOut = (fShrink ? BMHeader.cy / 2 : BMHeader.cy);
|
||||||
|
PRUint32 cbColor = ALIGNEDBPR( cxOut, 24) * cyOut;
|
||||||
|
PRUint32 cbMask = ALIGNEDBPR( cxOut, 1) * cyOut;
|
||||||
|
PRUint32 cbOutBuf = 2 + cbColor + cbMask;
|
||||||
|
pOutBuf = (PRUint8*)nsMemory::Alloc(cbOutBuf);
|
||||||
|
if (!pOutBuf)
|
||||||
|
break;
|
||||||
|
memset( pOutBuf, 0, cbOutBuf);
|
||||||
|
|
||||||
|
// create a DC and PS
|
||||||
|
DEVOPENSTRUC dop = {NULL, "DISPLAY", NULL, NULL, NULL, NULL, NULL, NULL, NULL};
|
||||||
|
hdc = DevOpenDC( (HAB)0, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&dop, NULLHANDLE);
|
||||||
|
if (!hdc)
|
||||||
|
break;
|
||||||
|
|
||||||
|
SIZEL sizel = {0,0};
|
||||||
|
hps = GpiCreatePS((HAB)0, hdc, &sizel, GPIA_ASSOC | PU_PELS | GPIT_MICRO);
|
||||||
|
if (!hps)
|
||||||
|
break;
|
||||||
|
|
||||||
|
// get the color bits
|
||||||
|
memset( pBMInfo, 0, cbBMInfo);
|
||||||
|
*((PBITMAPINFOHEADER2)pBMInfo ) = BMHeader;
|
||||||
|
GpiSetBitmap(hps, IconInfo.hbmColor);
|
||||||
|
if (GpiQueryBitmapBits( hps, 0L, (LONG)BMHeader.cy,
|
||||||
|
(BYTE*)pInBuf, pBMInfo) <= 0)
|
||||||
|
break;
|
||||||
|
|
||||||
|
// The first 2 bytes are the width & height of the icon in pixels
|
||||||
|
PRUint8* outPtr = pOutBuf;
|
||||||
|
*outPtr++ = (PRUint8)cxOut;
|
||||||
|
*outPtr++ = (PRUint8)cyOut;
|
||||||
|
|
||||||
|
// convert the color bitmap
|
||||||
|
pBMInfo->cbImage = cbInBuf;
|
||||||
|
if (fShrink)
|
||||||
|
ShrinkColorBitMap( pInBuf, pBMInfo, outPtr);
|
||||||
|
else
|
||||||
|
ConvertColorBitMap( pInBuf, pBMInfo, outPtr);
|
||||||
|
outPtr += cbColor;
|
||||||
|
|
||||||
|
// now we need to tack on the alpha data
|
||||||
|
|
||||||
|
// Get the mask info
|
||||||
|
BMHeader.cbFix = sizeof(BMHeader);
|
||||||
|
if (!GpiQueryBitmapInfoHeader(IconInfo.hbmPointer, &BMHeader))
|
||||||
|
break;
|
||||||
|
|
||||||
|
// if the existing input buffer isn't large enough, reallocate it
|
||||||
|
cbInRow = ALIGNEDBPR( BMHeader.cx, BMHeader.cBitCount);
|
||||||
|
if ((cbInRow * BMHeader.cy) > cbInBuf) // Need more for mask
|
||||||
{
|
{
|
||||||
pBitMapInfo->cbImage = cbBufferMask;
|
cbInBuf = cbInRow * BMHeader.cy;
|
||||||
pBitMapInfo->cSize1 = iScanLineSize;
|
nsMemory::Free(pInBuf);
|
||||||
ConvertMaskBitMap(buffer, pBitMapInfo, iconBuffer);
|
pInBuf = (PRUint8*)nsMemory::Alloc(cbInBuf);
|
||||||
|
memset( pInBuf, 0, cbInBuf);
|
||||||
|
}
|
||||||
|
|
||||||
|
// get the mask/alpha bits
|
||||||
|
memset( pBMInfo, 0, cbBMInfo);
|
||||||
|
*((PBITMAPINFOHEADER2)pBMInfo ) = BMHeader;
|
||||||
|
GpiSetBitmap(hps, IconInfo.hbmPointer);
|
||||||
|
if (GpiQueryBitmapBits( hps, 0L, (LONG)BMHeader.cy,
|
||||||
|
(BYTE*)pInBuf, pBMInfo) <= 0)
|
||||||
|
break;
|
||||||
|
|
||||||
// Now, create a pipe and stuff our data into it
|
// convert the mask/alpha bitmap
|
||||||
nsCOMPtr<nsIInputStream> inStream;
|
pBMInfo->cbImage = cbInBuf;
|
||||||
nsCOMPtr<nsIOutputStream> outStream;
|
if (fShrink)
|
||||||
rv = NS_NewPipe(getter_AddRefs(inStream), getter_AddRefs(outStream),
|
ShrinkMaskBitMap( pInBuf, pBMInfo, outPtr);
|
||||||
iconBuffer.Length(), iconBuffer.Length(), nonBlocking);
|
else
|
||||||
if (NS_SUCCEEDED(rv)) {
|
ConvertMaskBitMap( pInBuf, pBMInfo, outPtr);
|
||||||
PRUint32 written;
|
|
||||||
rv = outStream->Write(iconBuffer.get(), iconBuffer.Length(), &written);
|
// create a pipe
|
||||||
if (NS_SUCCEEDED(rv)) {
|
nsCOMPtr<nsIInputStream> inStream;
|
||||||
NS_ADDREF(*_retval = inStream);
|
nsCOMPtr<nsIOutputStream> outStream;
|
||||||
}
|
rv = NS_NewPipe(getter_AddRefs(inStream), getter_AddRefs(outStream),
|
||||||
}
|
cbOutBuf, cbOutBuf, nonBlocking);
|
||||||
} // if we have a mask buffer to apply
|
if (NS_FAILED(rv))
|
||||||
|
break;
|
||||||
|
|
||||||
|
// put our data into the pipe
|
||||||
|
PRUint32 written;
|
||||||
|
rv = outStream->Write( NS_REINTERPRET_CAST(const char*, pOutBuf),
|
||||||
|
cbOutBuf, &written);
|
||||||
|
if (NS_FAILED(rv))
|
||||||
|
break;
|
||||||
|
|
||||||
|
// success! so addref the pipe
|
||||||
|
NS_ADDREF(*_retval = inStream);
|
||||||
|
|
||||||
|
} while (0);
|
||||||
|
|
||||||
} // if we got color info
|
// free all the resources we allocated
|
||||||
nsMemory::Free(buffer);
|
if (pOutBuf)
|
||||||
nsMemory::Free(pBitMapInfo);
|
nsMemory::Free( pOutBuf);
|
||||||
if (hps)
|
if (pInBuf)
|
||||||
{
|
nsMemory::Free( pInBuf);
|
||||||
|
if (pBMInfo)
|
||||||
|
nsMemory::Free( pBMInfo);
|
||||||
|
if (hps) {
|
||||||
GpiAssociate(hps, NULLHANDLE);
|
GpiAssociate(hps, NULLHANDLE);
|
||||||
GpiDestroyPS(hps);
|
GpiDestroyPS(hps);
|
||||||
}
|
}
|
||||||
if (hdc)
|
if (hdc)
|
||||||
{
|
|
||||||
DevCloseDC(hdc);
|
DevCloseDC(hdc);
|
||||||
}
|
|
||||||
if (hIcon)
|
if (hIcon)
|
||||||
WinFreeFileIcon(hIcon);
|
WinFreeFileIcon( hIcon);
|
||||||
|
|
||||||
return rv;
|
return rv;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------
|
||||||
|
|
||||||
|
// if the file exists, get its icon; if it doesn't, create a dummy file
|
||||||
|
// with the same extension, then use whatever icon the system assigns it
|
||||||
|
|
||||||
|
HPOINTER GetFileIcon(nsCString& file, PRBool fExists)
|
||||||
|
{
|
||||||
|
|
||||||
|
if (fExists)
|
||||||
|
return WinLoadFileIcon( file.get(), FALSE);
|
||||||
|
|
||||||
|
nsCOMPtr<nsIFile> dummyPath;
|
||||||
|
if (NS_FAILED(NS_GetSpecialDirectory(NS_OS_TEMP_DIR,
|
||||||
|
getter_AddRefs(dummyPath))))
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
if (file.First() == '.')
|
||||||
|
file.Insert("moztmp", 0);
|
||||||
|
|
||||||
|
if (NS_FAILED(dummyPath->AppendNative(file)))
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
nsCAutoString dummyFile;
|
||||||
|
dummyPath->GetNativePath(dummyFile);
|
||||||
|
|
||||||
|
HPOINTER hRtn = 0;
|
||||||
|
FILE* fp = fopen( dummyFile.get(), "wb+");
|
||||||
|
if (fp) {
|
||||||
|
fclose( fp);
|
||||||
|
hRtn = WinLoadFileIcon(dummyFile.get(), FALSE);
|
||||||
|
remove(dummyFile.get());
|
||||||
|
}
|
||||||
|
|
||||||
|
return hRtn;
|
||||||
|
}
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------
|
||||||
|
|
||||||
|
// converts 16, 256, & 16M color bitmaps to 24-bit BGR format; since the
|
||||||
|
// scanlines in OS/2 bitmaps run bottom-to-top, it starts at the end of the
|
||||||
|
// input buffer & works its way back; Note: because the input is already
|
||||||
|
// padded to a dword boundary, the output will be padded automatically
|
||||||
|
|
||||||
|
void ConvertColorBitMap(PRUint8* inBuf, PBITMAPINFO2 pBMInfo, PRUint8* outBuf)
|
||||||
|
{
|
||||||
|
|
||||||
|
PRUint32 bprIn = ALIGNEDBPR(pBMInfo->cx, pBMInfo->cBitCount);
|
||||||
|
PRUint8* pIn = inBuf + (pBMInfo->cy - 1) * bprIn;
|
||||||
|
PRUint8* pOut = outBuf;
|
||||||
|
PRGB2 pColorTable = &pBMInfo->argbColor[0];
|
||||||
|
|
||||||
|
if (pBMInfo->cBitCount == 4) {
|
||||||
|
for (PRUint32 row = pBMInfo->cy; row > 0; row--) {
|
||||||
|
for (PRUint32 ndx = 0; ndx < bprIn; ndx++, pIn++) {
|
||||||
|
pOut = 3 + (PRUint8*)memcpy( pOut, &pColorTable[FIRSTPEL(*pIn)], 3);
|
||||||
|
pOut = 3 + (PRUint8*)memcpy( pOut, &pColorTable[SECONDPEL(*pIn)], 3);
|
||||||
|
}
|
||||||
|
pIn -= 2 * bprIn;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
else
|
||||||
|
if (pBMInfo->cBitCount == 8) {
|
||||||
|
for (PRUint32 row = pBMInfo->cy; row > 0; row--) {
|
||||||
|
for (PRUint32 ndx = 0; ndx < bprIn; ndx++, pIn++) {
|
||||||
|
pOut = 3 + (PRUint8*)memcpy( pOut, &pColorTable[*pIn], 3);
|
||||||
|
}
|
||||||
|
pIn -= 2 * bprIn;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
else
|
||||||
|
if (pBMInfo->cBitCount == 24) {
|
||||||
|
for (PRUint32 row = pBMInfo->cy; row > 0; row--) {
|
||||||
|
pOut = bprIn + (PRUint8*)memcpy( pOut, pIn, bprIn);
|
||||||
|
pIn -= bprIn;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------
|
||||||
|
|
||||||
|
// similar to ConvertColorBitMap() except that it skips every other pixel
|
||||||
|
// horizontally, & every other line vertically; this is the exact reverse
|
||||||
|
// of what GPI does when it expands a mini-icon to full-size
|
||||||
|
|
||||||
|
void ShrinkColorBitMap(PRUint8* inBuf, PBITMAPINFO2 pBMInfo, PRUint8* outBuf)
|
||||||
|
{
|
||||||
|
|
||||||
|
PRUint32 bprIn = ALIGNEDBPR(pBMInfo->cx, pBMInfo->cBitCount);
|
||||||
|
PRUint8* pIn = inBuf + (pBMInfo->cy - 1) * bprIn;
|
||||||
|
PRUint8* pOut = outBuf;
|
||||||
|
PRGB2 pColorTable = &pBMInfo->argbColor[0];
|
||||||
|
|
||||||
|
if (pBMInfo->cBitCount == 4) {
|
||||||
|
for (PRUint32 row = pBMInfo->cy; row > 0; row -= 2) {
|
||||||
|
for (PRUint32 ndx = 0; ndx < bprIn; ndx++, pIn++) {
|
||||||
|
pOut = 3 + (PRUint8*)memcpy( pOut, &pColorTable[FIRSTPEL(*pIn)], 3);
|
||||||
|
}
|
||||||
|
pIn -= 3 * bprIn;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
else
|
||||||
|
if (pBMInfo->cBitCount == 8) {
|
||||||
|
for (PRUint32 row = pBMInfo->cy; row > 0; row -= 2) {
|
||||||
|
for (PRUint32 ndx = 0; ndx < bprIn; ndx += 2, pIn += 2) {
|
||||||
|
pOut = 3 + (PRUint8*)memcpy( pOut, &pColorTable[*pIn], 3);
|
||||||
|
}
|
||||||
|
pIn -= 3 * bprIn;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
else
|
||||||
|
if (pBMInfo->cBitCount == 24) {
|
||||||
|
for (PRUint32 row = pBMInfo->cy; row > 0; row -= 2) {
|
||||||
|
for (PRUint32 ndx = 0; ndx < bprIn; ndx += 6, pIn += 3) {
|
||||||
|
pOut = 3 + (PRUint8*)memcpy( pOut, pIn, 3);
|
||||||
|
pIn += 3;
|
||||||
|
}
|
||||||
|
pIn -= 3 * bprIn;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------
|
||||||
|
|
||||||
|
// converts an icon's AND mask into 1-bit alpha data; since the AND mask
|
||||||
|
// is the 2nd half of a pair of bitmaps & the scanlines run bottom-to-top,
|
||||||
|
// starting at the end & working back to the midpoint converts the entire
|
||||||
|
// bitmap; Note: because the input is already padded to a dword boundary,
|
||||||
|
// the output will be padded automatically
|
||||||
|
|
||||||
|
void ConvertMaskBitMap(PRUint8* inBuf, PBITMAPINFO2 pBMInfo, PRUint8* outBuf)
|
||||||
|
{
|
||||||
|
|
||||||
|
PRUint32 bprIn = ALIGNEDBPR(pBMInfo->cx, pBMInfo->cBitCount);
|
||||||
|
PRUint32 lprIn = bprIn / 4;
|
||||||
|
PRUint32* pOut32 = (PRUint32*)outBuf;
|
||||||
|
PRUint32* pIn32 = (PRUint32*)(inBuf + (pBMInfo->cy - 1) * bprIn);
|
||||||
|
|
||||||
|
for (PRUint32 row = pBMInfo->cy/2; row > 0; row--) {
|
||||||
|
for (PRUint32 ndx = 0; ndx < lprIn; ndx++) {
|
||||||
|
*pOut32++ = ~(*pIn32++);
|
||||||
|
}
|
||||||
|
pIn32 -= 2 * lprIn;
|
||||||
|
}
|
||||||
|
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------
|
||||||
|
|
||||||
|
// similar to ConvertMaskBitMap() except that it skips every other pixel
|
||||||
|
// horizontally, & every other line vertically; Note: this is the only
|
||||||
|
// one of these functions that may have to add padding to its output
|
||||||
|
|
||||||
|
void ShrinkMaskBitMap(PRUint8* inBuf, PBITMAPINFO2 pBMInfo, PRUint8* outBuf)
|
||||||
|
{
|
||||||
|
|
||||||
|
PRUint32 bprIn = ALIGNEDBPR(pBMInfo->cx, pBMInfo->cBitCount);
|
||||||
|
PRUint32 padOut = (bprIn / 2) & 3;
|
||||||
|
PRUint8* pOut = outBuf;
|
||||||
|
PRUint8* pIn = inBuf + (pBMInfo->cy - 1) * bprIn;
|
||||||
|
|
||||||
|
// for every other row
|
||||||
|
for (PRUint32 row = pBMInfo->cy/2; row > 0; row -= 2) {
|
||||||
|
PRUint8 dest = 0;
|
||||||
|
PRUint8 destMask = 0x80;
|
||||||
|
|
||||||
|
// for every byte in the row
|
||||||
|
for (PRUint32 ndx = 0; ndx < bprIn; ndx++) {
|
||||||
|
PRUint8 src = ~(*pIn++);
|
||||||
|
PRUint8 srcMask = 0x80;
|
||||||
|
|
||||||
|
// for every other bit in the current byte
|
||||||
|
for (PRUint32 bitNdx = 0; bitNdx < 8; bitNdx += 2) {
|
||||||
|
if (src & srcMask)
|
||||||
|
dest |= destMask;
|
||||||
|
srcMask >>= 2;
|
||||||
|
destMask >>= 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
// if we've filled an output byte from two input bytes, save it
|
||||||
|
if (!destMask) {
|
||||||
|
*pOut++ = dest;
|
||||||
|
dest = 0;
|
||||||
|
destMask = 0x80;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// after we've processed every input byte in the row,
|
||||||
|
// does the output row need padding?
|
||||||
|
if (padOut) {
|
||||||
|
memset( pOut, 0, padOut);
|
||||||
|
pOut += padOut;
|
||||||
|
}
|
||||||
|
|
||||||
|
pIn -= 3 * bprIn;
|
||||||
|
}
|
||||||
|
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------
|
||||||
|
|
||||||
NS_IMETHODIMP nsIconChannel::GetContentType(nsACString &aContentType)
|
NS_IMETHODIMP nsIconChannel::GetContentType(nsACString &aContentType)
|
||||||
{
|
{
|
||||||
aContentType.AssignLiteral("image/icon");
|
aContentType.AssignLiteral("image/icon");
|
||||||
|
@ -723,6 +730,7 @@ NS_IMETHODIMP nsIconChannel::OnStopRequest(nsIRequest* aRequest, nsISupports* aC
|
||||||
return NS_OK;
|
return NS_OK;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------
|
||||||
// nsIStreamListener methods
|
// nsIStreamListener methods
|
||||||
NS_IMETHODIMP nsIconChannel::OnDataAvailable(nsIRequest* aRequest,
|
NS_IMETHODIMP nsIconChannel::OnDataAvailable(nsIRequest* aRequest,
|
||||||
nsISupports* aContext,
|
nsISupports* aContext,
|
||||||
|
@ -734,3 +742,6 @@ NS_IMETHODIMP nsIconChannel::OnDataAvailable(nsIRequest* aRequest,
|
||||||
return mListener->OnDataAvailable(this, aContext, aStream, aOffset, aCount);
|
return mListener->OnDataAvailable(this, aContext, aStream, aOffset, aCount);
|
||||||
return NS_OK;
|
return NS_OK;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------
|
||||||
|
|
||||||
|
|
Загрузка…
Ссылка в новой задаче