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L_BumpMapBitmap

Summary

Adds a three-dimensional texture pattern created by applying the bump image to the destination image.

Syntax

#include "l_bitmap.h"

L_LTIMGSFX_API L_INT L_BumpMapBitmap(pBitmapDst, pBumpBitmap, pBumpData, uFlags)

Parameters

pBITMAPHANDLE pBitmapDst

Pointer to the bitmap handle referencing the destination bitmap. This bitmap will be updated by the function.

pBITMAPHANDLE pBumpBitmap

Pointer to the bitmap handle referencing the Bump bitmap.

pBUMPDATA pBumpData

Pointer to a BUMPDATA structure that contains information about the bump parameter.

Returns

Value	Meaning
SUCCESS	The function was successful.
< 1	An error occurred. Refer to Return Codes.

Comments

This function does not support signed data images. It returns the error code ERROR_SIGNED_DATA_NOT_SUPPORTED if a signed data image is passed to this function.

To update a status bar or detect a user interrupt during execution of this function, refer to L_SetStatusCallback.

This function supports 12 and 16-bit grayscale and 48 and 64-bit color images. Support for 12 and 16-bit grayscale and 48 and 64-bit color images is available in the Document and Medical Imaging toolkits.

This function does not support 32-bit grayscale images. It returns the error code ERROR_GRAY32_UNSUPPORTED if a 32-bit grayscale image is passed to this function.

Bump Map Function - Before

Bump Map Function - After

View additional platform support for this Bump Map function.

Required DLLs and Libraries

LTIMGSFX
For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Platforms

Win32, x64.

Example

L_INT BumpMapBitmapExample(L_VOID) 
{ 
   L_INT nRet; 
   BUMPDATA BumpData; 
   BITMAPHANDLE LeadBitmap; /* Bitmap handle to hold the loaded image */ 
   BITMAPHANDLE TmpBitmap;  /* Temporary bitmap */ 
 
   /* Load each bitmap, at its own bits per pixel */ 
   nRet = L_LoadBitmap(MAKE_IMAGE_PATH(TEXT("Image2.cmp")), &LeadBitmap, sizeof(BITMAPHANDLE), 0, ORDER_BGR, NULL, NULL); 
   if (nRet != SUCCESS) 
      return nRet; 
 
   nRet = L_LoadBitmap(MAKE_IMAGE_PATH(TEXT("ULAY1.BMP")), &TmpBitmap, sizeof(BITMAPHANDLE), 0, ORDER_BGR, NULL, NULL); 
   if (nRet != SUCCESS) 
      return nRet; 
 
   BumpData.uStructSize = sizeof(BUMPDATA); 
   BumpData.bTile = TRUE; 
   BumpData.nAzimuth = 5; 
   BumpData.nBright = 50; 
   BumpData.nIntensity = 0; 
   BumpData.nXDst = 0; 
   BumpData.nYDst = 0; 
   BumpData.nXOffset = 0; 
   BumpData.nYOffset = 0; 
   BumpData.uDepth = 3; 
   BumpData.uElevation = 0; 
   BumpData.pLut = NULL; 
 
   nRet = L_BumpMapBitmap(&LeadBitmap, &TmpBitmap, &BumpData, 0); 
   if (nRet != SUCCESS) 
      return nRet; 
 
   nRet = L_SaveBitmap(MAKE_IMAGE_PATH(TEXT("Result.BMP")), &LeadBitmap, FILE_BMP, 24, 0, NULL); 
   if (nRet != SUCCESS) 
      return nRet; 
 
   //free bitmap 
   if (LeadBitmap.Flags.Allocated) 
      L_FreeBitmap(&LeadBitmap); 
 
   //free Bitm 
   if (TmpBitmap.Flags.Allocated) 
      L_FreeBitmap(&TmpBitmap); 
 
   return SUCCESS; 
}