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- #include <stdlib.h>
- #include <string.h>
- #include "System.h"
- #ifdef PATHS_IN_INCLUDES
- #include "GREEN/Image/Image.h"
- #include "ORANGE/File/file.h"
- #include "ORANGE/Laymage/laymage.h"
- #include "BLUE/Blue.h"
- #else
- #include "Image.h"
- #include "FILE.H"
- #include "LAYMAGE.H"
- #include "Blue.h"
- #endif
- RLaymage::RLaymage()
- {
- short i;
- for (i = 0; i < LAYMAGE_MAXCHANNELS; i++)
- m_pcChannels[i] = NULL;
- m_sNumLayers = 0;
- m_apImages = NULL;
- m_apszLayerNames = NULL;
- m_lTellLayers = 0;
- m_lTellChannels = 0;
- }
- RLaymage::~RLaymage()
- {
- Reset();
- }
- void RLaymage::Reset()
- {
- ClearChannelBuffers();
- FreeAllLayers();
- FreeLayerArrays();
- m_sNumLayers = 0;
- m_apImages = NULL;
- m_apszLayerNames = NULL;
- m_lTellLayers = 0;
- m_lTellChannels = 0;
- }
- void RLaymage::ClearChannelBuffers(void)
- {
- short i;
- for (i = 0; i < LAYMAGE_MAXCHANNELS; i++)
- if (m_pcChannels[i])
- {
- free(m_pcChannels[i]);
- m_pcChannels[i] = NULL;
- }
- }
- short RLaymage::AllocateChannelBuffers(ULONG ulSize)
- {
- short sReturn = SUCCESS;
- ClearChannelBuffers();
- m_pcChannels[LAYMAGE_RED] = (char*) calloc(ulSize, 1);
- m_pcChannels[LAYMAGE_GREEN] = (char*) calloc(ulSize, 1);
- m_pcChannels[LAYMAGE_BLUE] = (char*) calloc(ulSize, 1);
- m_pcChannels[LAYMAGE_ALPHA] = (char*) calloc(ulSize, 1);
- if (m_pcChannels[LAYMAGE_RED] &&
- m_pcChannels[LAYMAGE_GREEN] &&
- m_pcChannels[LAYMAGE_BLUE] &&
- m_pcChannels[LAYMAGE_ALPHA])
- sReturn = SUCCESS;
- else
- {
- sReturn = FAILURE;
- ClearChannelBuffers();
- }
- return sReturn;
- }
- short RLaymage::SetPSD(char* pszFilename)
- {
- RFile cf;
- RFile cfChannel;
- short sReturn = SUCCESS;
- short i;
- strcpy(m_szPhotoshopFilename, pszFilename);
- if (ReadPSDHeader(pszFilename) != SUCCESS)
- {
- TRACE("RLaymage::SetPSD - Failed - header could not be read\n");
- goto error;
- }
- if (cf.Open(pszFilename, "rb", RFile::BigEndian) != SUCCESS)
- {
- TRACE("RLaymage::SetPSD - Error cannot open file %s\n", pszFilename);
- goto error;
- }
- if (cfChannel.Open(pszFilename, "rb", RFile::BigEndian) != SUCCESS)
- {
- TRACE("RLaymage::SetPSD - Error cannot open channel file %s\n", pszFilename);
- goto error;
- }
- cf.Seek(m_lTellLayers, SEEK_SET);
- cfChannel.Seek(m_lTellChannels, SEEK_SET);
- i = 0;
- while (i < m_sNumLayers)
- ReadLayerName(i++, &cf);
- cf.Close();
- cfChannel.Close();
- return SUCCESS;
- error:
- cf.Close();
- cfChannel.Close();
- return FAILURE;
- }
- short RLaymage::LoadPSD(char* pszFilename)
- {
- RFile cf;
- RFile cfChannel;
- short sReturn = SUCCESS;
- short i;
- strcpy(m_szPhotoshopFilename, pszFilename);
- if (ReadPSDHeader(pszFilename) != SUCCESS)
- {
- TRACE("RLaymage::LoadPSD - Failed - header could not be read\n");
- goto error;
- }
- if (cf.Open(pszFilename, "rb", RFile::BigEndian) != SUCCESS)
- {
- TRACE("RLaymage::LoadPSD - Error cannot open file %s\n", pszFilename);
- goto error;
- }
- if (cfChannel.Open(pszFilename, "rb", RFile::BigEndian) != SUCCESS)
- {
- TRACE("RLaymage::LoadPSD - Error cannot open channel file %s\n", pszFilename);
- goto error;
- }
- cf.Seek(m_lTellLayers, SEEK_SET);
- cfChannel.Seek(m_lTellChannels, SEEK_SET);
- i = 0;
- while (i < m_sNumLayers)
- ReadLayerInfo(i++, &cf, &cfChannel);
- cf.Close();
- cfChannel.Close();
- return SUCCESS;
- error:
- cf.Close();
- cfChannel.Close();
- return FAILURE;
- }
- short RLaymage::ReadPSDHeader(char* pszFilename)
- {
- RFile cf;
- RFile cfChannel;
- short sReturn = SUCCESS;
- ULONG ulData;
- USHORT usData;
- if (cf.Open(pszFilename, "rb", RFile::BigEndian) != SUCCESS)
- {
- TRACE("RLaymage::ReadPSDHeader - Error cannot open file %s\n", pszFilename);
- goto error;
- }
- if (cfChannel.Open(pszFilename, "rb", RFile::BigEndian) != SUCCESS)
- {
- TRACE("RLaymage::ReadPSDHeader - Error cannot open channel file %s\n", pszFilename);
- goto error;
- }
-
-
-
-
-
-
- cf.Read(&ulData);
- if (ulData != LAYMAGE_PHOTOSHOP_SIGNATURE)
- {
- TRACE("RLaymage::ReadPSDHeader - Error - File signature is not 8BPS\n");
- goto error;
- }
-
- cf.Read(&usData);
- if (usData != 1)
- {
- TRACE("RLaymage::ReadPSDHeader - Error - File version is not 1\n");
- goto error;
- }
-
- cf.Seek(6, SEEK_CUR);
-
- cf.Read(&m_sSpecialNumChannels);
-
- cf.Read(&m_lHeight);
- cf.Read(&m_lWidth);
-
- cf.Seek(2, SEEK_CUR);
-
- cf.Read(&usData);
- if (usData != 3)
- {
- TRACE("RLaymage::ReadPSDHeader - Error - file not in RGB color mode\n");
- goto error;
- }
-
- cf.Read(&ulData);
- cf.Seek(ulData, SEEK_CUR);
-
- cf.Read(&ulData);
- cf.Seek(ulData, SEEK_CUR);
-
-
-
- cf.Read(&ulData);
- if (ulData > 0)
- {
-
- m_sHasLayerInfo = 1;
-
- cf.Read(&ulData);
-
- cf.Read(&m_sNumLayers);
- if (m_sNumLayers < 0)
- m_sNumLayers = -m_sNumLayers;
-
-
- cfChannel.Seek(cf.Tell(), SEEK_SET);
- SetChannelPointer(m_sNumLayers, &cfChannel);
- }
- else
- {
-
- m_sHasLayerInfo = 0;
-
- m_sNumLayers = 1;
-
-
- cfChannel.Seek(cf.Tell(), SEEK_SET);
- }
- m_lTellLayers = cf.Tell();
- m_lTellChannels = cfChannel.Tell();
-
- if (AllocateLayerArrays(m_sNumLayers) != SUCCESS)
- {
- TRACE("RLaymage::ReadPSDHeader - Error allocating layer arrays\n");
- goto error;
- }
- cf.Close();
- cfChannel.Close();
- return SUCCESS;
- error:
- cf.Close();
- cfChannel.Close();
- return FAILURE;
- }
- short RLaymage::ReadLayer(short sRequestedLayer)
- {
- RFile cf;
- RFile cfChannel;
- short sReturn = SUCCESS;
- short i;
- if (cf.Open(m_szPhotoshopFilename, "rb", RFile::BigEndian) != SUCCESS)
- {
- TRACE("RLaymage::ReadLayer - Error cannot open file %s\n", m_szPhotoshopFilename);
- goto error;
- }
- if (cfChannel.Open(m_szPhotoshopFilename, "rb", RFile::BigEndian) != SUCCESS)
- {
- TRACE("RLaymage::ReadPSDHeader - Error cannot open channel file %s\n", m_szPhotoshopFilename);
- goto error;
- }
-
- cf.Seek(m_lTellLayers, SEEK_SET);
- cfChannel.Seek(m_lTellChannels, SEEK_SET);
- i = 0;
- while (i < sRequestedLayer)
- {
- if (ReadLayerInfo(i, &cf, &cfChannel) != SUCCESS)
- goto error;
- FreeLayer(i);
- i++;
- }
- if (i == sRequestedLayer)
- if (ReadLayerInfo(i, &cf, &cfChannel) != SUCCESS)
- goto error;
- cf.Close();
- cfChannel.Close();
- return SUCCESS;
- error:
- cf.Close();
- cfChannel.Close();
- return FAILURE;
- }
- short RLaymage::SetChannelPointer(short sNumLayers, RFile* pcfChannel)
- {
- ULONG ulData;
- USHORT usNumChannels = 0;
- USHORT i;
- UCHAR ucData;
- short sReturn = FAILURE;
- short sLayer;
- if (pcfChannel && pcfChannel->IsOpen())
- {
- pcfChannel->ClearError();
- for (sLayer = 0; sLayer < sNumLayers; sLayer++)
- {
-
- pcfChannel->Seek(16, SEEK_CUR);
- pcfChannel->Read(&usNumChannels);
-
- for (i = 0; i < usNumChannels; i++)
- pcfChannel->Seek(6, SEEK_CUR);
-
-
- pcfChannel->Seek(16, SEEK_CUR);
-
- pcfChannel->Read(&ulData);
- pcfChannel->Seek(ulData, SEEK_CUR);
-
- pcfChannel->Read(&ulData);
- pcfChannel->Seek(ulData, SEEK_CUR);
-
-
- pcfChannel->Read(&ucData);
- char* pszName = (char*) malloc(ucData);
- pcfChannel->Read(pszName, ucData);
- free (pszName);
-
-
- if ((ucData+1) % 4)
- pcfChannel->Seek((4-((ucData+1) % 4)), SEEK_CUR);
- }
- if (!pcfChannel->Error())
- sReturn = SUCCESS;
- }
- return sReturn;
- }
- short RLaymage::ReadLayerInfo(short sLayerNum, RFile* pcfLayer,
- RFile* pcfChannel)
- {
- ULONG ulData;
- USHORT usData;
- UCHAR ucData;
- short asChannelID[LAYMAGE_MAXCHANNELS];
- USHORT usNextChannel = 0;
- USHORT usNumChannels = 0;
- ULONG ulTop;
- ULONG ulBottom;
- ULONG ulLeft;
- ULONG ulRight;
- USHORT k;
- USHORT i;
- short sReturn = SUCCESS;
- pcfLayer->ClearError();
- pcfChannel->ClearError();
-
- if (m_sHasLayerInfo)
- {
-
- pcfLayer->Read(&ulTop);
- pcfLayer->Read(&ulLeft);
- pcfLayer->Read(&ulBottom);
- pcfLayer->Read(&ulRight);
-
- pcfLayer->Read(&usNumChannels);
-
- for (i = 0; i < usNumChannels; i++)
- {
- pcfLayer->Read(&asChannelID[i]);
- pcfLayer->Read(&ulData);
- }
-
- pcfLayer->Seek(16, SEEK_CUR);
-
- pcfLayer->Read(&ulData);
- pcfLayer->Seek(ulData, SEEK_CUR);
-
- pcfLayer->Read(&ulData);
- pcfLayer->Seek(ulData, SEEK_CUR);
-
-
- pcfLayer->Read(&ucData);
-
-
- if (m_apszLayerNames[sLayerNum])
- pcfLayer->Seek(ucData, SEEK_CUR);
- else
- {
- m_apszLayerNames[sLayerNum] = new char[ucData+1];
- pcfLayer->Read(m_apszLayerNames[sLayerNum], ucData);
- m_apszLayerNames[sLayerNum][ucData] = 0;
- }
-
- if ((ucData+1) % 4)
- pcfLayer->Seek((4 - (ucData+1) % 4), SEEK_CUR);
-
- if (AllocateChannelBuffers((ulBottom-ulTop)*(ulRight-ulLeft)) == SUCCESS)
- {
-
- short sChannelSel;
- for (k = 0; k < usNumChannels; k++)
- {
-
- if (asChannelID[k] > -2 && asChannelID[k] < 3)
- {
- switch (asChannelID[k])
- {
- case -1:
- sChannelSel = LAYMAGE_ALPHA;
- break;
- case 0:
- sChannelSel = LAYMAGE_RED;
- break;
- case 1:
- sChannelSel = LAYMAGE_GREEN;
- break;
- case 2:
- sChannelSel = LAYMAGE_BLUE;
- break;
- default:
- sChannelSel = LAYMAGE_IGNORE;
- break;
- }
-
- pcfChannel->Read(&usData);
- if (usData == 0)
- {
-
- if (!m_pcChannels[sChannelSel])
- TRACE("RLaymage::ReadLayerInfo - Error allocating memory for channel buffer\n");
- else
- pcfChannel->Read(m_pcChannels[sChannelSel], (ulBottom-ulTop)*(ulRight-ulLeft));
- }
- else
- {
-
- USHORT m;
- ULONG ulCompSize = 0;
- for (m = 0; m < ulBottom-ulTop; m++)
- {
- pcfChannel->Read(&usData);
- ulCompSize += usData;
- }
- if (!m_pcChannels[sChannelSel])
- TRACE("RLaymage::ReadLayerInfo - Error allocating memory for channel buffer\n");
- else
- RLE_Decompress(m_pcChannels[sChannelSel], ulCompSize, pcfChannel);
- }
- }
- else
- {
-
-
- pcfChannel->Read(&usData);
- if (usData == 0)
- {
-
-
- pcfChannel->Seek((ulBottom-ulTop)*(ulRight-ulLeft), SEEK_CUR);
- }
- else
- {
-
-
-
- USHORT j;
- ULONG ulSkip = 0;
- for (j = 0; j < ulBottom - ulTop; j++)
- {
- pcfChannel->Read(&usData);
- ulSkip += usData;
- }
- pcfChannel->Seek(ulSkip, SEEK_CUR);
- }
- }
- }
-
- ConvertToImage(sLayerNum, ulTop, ulBottom, ulLeft, ulRight);
- }
- else
- {
- sReturn = FAILURE;
- TRACE("RLaymage::ReadLayerInfo - Error allocating channel buffers\n");
- }
- }
- else
- {
-
- if (m_apszLayerNames[sLayerNum] == 0)
- {
- m_apszLayerNames[sLayerNum] = new char[20+1];
- strcpy(m_apszLayerNames[sLayerNum], "background");
- }
-
- if (AllocateChannelBuffers(m_lWidth * m_lHeight) == SUCCESS)
- {
-
- USHORT usComp;
- pcfChannel->Read(&usComp);
-
-
-
- if (usComp == 0)
- {
-
- pcfChannel->Read(m_pcChannels[LAYMAGE_RED], m_lWidth * m_lHeight);
- pcfChannel->Read(m_pcChannels[LAYMAGE_GREEN], m_lWidth * m_lHeight);
- pcfChannel->Read(m_pcChannels[LAYMAGE_BLUE], m_lWidth * m_lHeight);
- pcfChannel->Read(m_pcChannels[LAYMAGE_ALPHA], m_lWidth * m_lHeight);
- }
- else
- {
-
-
-
-
- ULONG ulCompSize[4] = { 0, 0, 0, 0 };
- for (k = 0; k < 4; k++)
- {
- for (USHORT m = 0; m < m_lHeight; m++)
- {
- pcfChannel->Read(&usData);
- ulCompSize[k] += usData;
- }
- }
- RLE_Decompress(m_pcChannels[LAYMAGE_RED], ulCompSize[0], pcfChannel);
- RLE_Decompress(m_pcChannels[LAYMAGE_GREEN], ulCompSize[1], pcfChannel);
- RLE_Decompress(m_pcChannels[LAYMAGE_BLUE], ulCompSize[2], pcfChannel);
- RLE_Decompress(m_pcChannels[LAYMAGE_ALPHA], ulCompSize[3], pcfChannel);
- }
-
- ConvertToImage(sLayerNum, 0, m_lHeight, 0, m_lWidth);
- }
- else
- {
- sReturn = FAILURE;
- TRACE("RLaymage::ReadLayerInfo - Error allocating channel buffers\n");
- }
- }
- ClearChannelBuffers();
- return sReturn;
- }
- short RLaymage::ReadLayerName(short sLayerNum, RFile* pcfLayer)
- {
- ULONG ulData;
- USHORT usData;
- UCHAR ucData;
- ULONG* pulChannelLength = NULL;
- short* psChannelID = NULL;
- USHORT usNextChannel = 0;
- USHORT usNumChannels = 0;
- ULONG ulTop;
- ULONG ulBottom;
- ULONG ulLeft;
- ULONG ulRight;
- USHORT i;
- short sReturn = SUCCESS;
- pcfLayer->ClearError();
-
-
- pcfLayer->Read(&ulTop);
- pcfLayer->Read(&ulLeft);
- pcfLayer->Read(&ulBottom);
- pcfLayer->Read(&ulRight);
- pcfLayer->Read(&usNumChannels);
- pulChannelLength = (ULONG*) calloc(usNumChannels, sizeof(ULONG));
- psChannelID = (short*) calloc(usNumChannels, sizeof(short));
- if (pulChannelLength == NULL || psChannelID == NULL)
- {
- TRACE("RLaymage::ReadLayerInfo - Error allocating buffers for channel data\n");
- sReturn = FAILURE;
- }
- for (i = 0; i < usNumChannels; i++)
- {
-
- pcfLayer->Read(&usData);
- psChannelID[i] = usData;
- pcfLayer->Read(&ulData);
- pulChannelLength[usNextChannel++] = ulData;
- }
-
- pcfLayer->Read(&ulData);
-
- pcfLayer->Seek(12, SEEK_CUR);
-
- pcfLayer->Read(&ulData);
- pcfLayer->Seek(ulData, SEEK_CUR);
-
- pcfLayer->Read(&ulData);
- pcfLayer->Seek(ulData, SEEK_CUR);
-
-
- pcfLayer->Read(&ucData);
- m_apszLayerNames[sLayerNum] = new char[ucData+1];
- pcfLayer->Read(m_apszLayerNames[sLayerNum], ucData);
- m_apszLayerNames[sLayerNum][ucData] = 0;
-
- if ((ucData+1) % 4)
- pcfLayer->Seek((4 - (ucData+1) % 4), SEEK_CUR);
-
- if (AllocateChannelBuffers((ulBottom-ulTop)*(ulRight-ulLeft)) != SUCCESS)
- TRACE("RLaymage::ReadLayerInfo - Error allocating channel buffers\n");
- return sReturn;
- }
- short RLaymage::RLE_Decompress(char* pcBuffer, ULONG ulCompSize, RFile* pcfRLE)
- {
- short sReturn;
- ULONG ulRead = 0;
- ULONG ulBufferPos = 0;
- ULONG ulBufferFill = 0;
- signed char cData;
- signed char cFlag;
- UCHAR ucRun;
- USHORT i;
- if (pcfRLE && pcfRLE->IsOpen())
- {
- pcfRLE->ClearError();
- while (ulRead < ulCompSize)
- {
- pcfRLE->Read(&cFlag);
- ulRead++;
- if (cFlag < 0)
- {
- if (cFlag == 0x80)
- {
- pcfRLE->Read(&cData);
- ulRead++;
- }
- else
- {
-
- ucRun = -cFlag + 1;
-
- pcfRLE->Read(&cData);
- ulRead++;
- for (i = 0; i < ucRun; i++)
- pcBuffer[ulBufferPos++] = cData;
- ulBufferFill += ucRun;
- }
- }
- else
- {
-
- ucRun = cFlag + 1;
- pcfRLE->Read(&(pcBuffer[ulBufferPos]), ucRun);
- ulBufferPos += ucRun;
- ulRead += ucRun;
- ulBufferFill += ucRun;
- }
- }
- if (pcfRLE->Error())
- sReturn = FAILURE;
- else
- sReturn = SUCCESS;
- }
- else
- sReturn = FAILURE;
- return sReturn;
- }
- short RLaymage::ConvertToImage(short sLayerNum, ULONG ulTop, ULONG ulBottom,
- ULONG ulLeft, ULONG ulRight)
- {
- short sReturn = SUCCESS;
- RImage* pImage;
- ULONG row;
- ULONG col;
- ULONG i;
- ULONG ulPixel;
- pImage = m_apImages[sLayerNum] = new RImage(m_lWidth*m_lHeight*4);
- if (pImage)
- {
-
-
-
-
- U32* pu32 = (U32*) pImage->m_pData;
- for (i = 0; i < pImage->m_ulSize / 4; i++)
- pu32[i] = 0x00ffffff;
- pImage->m_type = pImage->m_typeDestination = RImage::SCREEN32_ARGB;
- pImage->m_sWidth = (short)m_lWidth;
- pImage->m_sHeight = (short)m_lHeight;
- pImage->m_sDepth = 32;
- pImage->m_lPitch = (long)pImage->m_sWidth * (pImage->m_sDepth/8);
- ULONG* ulp32 = (ULONG*) pImage->m_pData;
- long lDestPitch = pImage->m_lPitch / 4;
- i = 0;
- for (row = ulTop; row < ulBottom; row++)
- for (col = ulLeft; col < ulRight; col++)
- {
- ulPixel = ((UCHAR) m_pcChannels[LAYMAGE_ALPHA][i]) * 0x01000000 |
- ((UCHAR) m_pcChannels[LAYMAGE_RED][i]) * 0x00010000 |
- ((UCHAR) m_pcChannels[LAYMAGE_GREEN][i]) * 0x00000100 |
- ((UCHAR) m_pcChannels[LAYMAGE_BLUE][i]);
- i++;
- ulp32[row*lDestPitch + col] = ulPixel;
- }
- }
- return sReturn;
- }
- short RLaymage::Load(char* pszFilename)
- {
- RFile cf;
- short sReturn = SUCCESS;
- if (cf.Open(pszFilename, "rb", RFile::LittleEndian) != SUCCESS)
- {
- TRACE("RLaymage::Load - could not open file %s\n", pszFilename);
- return FAILURE;
- }
- sReturn = Load(&cf);
- cf.Close();
- return sReturn;
- }
- short RLaymage::Load(RFile* pcf)
- {
- short sReturn = SUCCESS;
- ULONG ulFileType = 0;
- ULONG ulVersion = 0;
- if (pcf && pcf->IsOpen())
- {
- if (pcf->Read(&ulFileType) == 1)
- {
- if (ulFileType == LAYMAGE_COOKIE)
- {
- if (pcf->Read(&ulVersion) == 1)
- {
- if (ulVersion == LAYMAGE_CURRENT_VERSION)
- {
-
-
-
- }
- else
- {
- TRACE("RLaymage::Load - Error: File version is %d Current code version is %d\n", ulVersion, LAYMAGE_CURRENT_VERSION);
- sReturn = FAILURE;
- }
- }
- else
- {
- TRACE("RLaymage::Load - Error reading file version\n");
- sReturn = FAILURE;
- }
- }
- else
- {
- TRACE("RLaymage::Load - Error: File typs is not \"IML \"\n");
- sReturn = FAILURE;
- }
- }
- else
- {
- TRACE("RLaymage::Load - Error reading file type\n");
- sReturn = FAILURE;
- }
- }
- else
- {
- TRACE("RLaymage::Load - Error RFile pointer does not refer to an open file\n");
- sReturn = FAILURE;
- }
- return sReturn;
- }
- short RLaymage::Save(char* pszFilename)
- {
- RFile cf;
- short sReturn = SUCCESS;
- if (cf.Open(pszFilename, "wb", RFile::LittleEndian) != SUCCESS)
- {
- TRACE("RLaymage::Save - could not open file %s for output\n", pszFilename);
- return FAILURE;
- }
- sReturn = Save(&cf);
- cf.Close();
- return sReturn;
- }
- short RLaymage::Save(RFile* )
- {
- return FAILURE;
- }
- RImage* RLaymage::GetLayer(char* pszLayerName)
- {
- short i = 0;
- RImage* pLayerImage = NULL;
- while (i < m_sNumLayers && pLayerImage == NULL)
- {
- if (strcmp(pszLayerName, m_apszLayerNames[i]) == 0)
- {
- pLayerImage = m_apImages[i];
- if (pLayerImage == NULL)
- {
- ReadLayer(i);
- pLayerImage = m_apImages[i];
- }
- }
- else
- i++;
- }
- return pLayerImage;
- }
- RImage* RLaymage::GetLayer(short sLayerNumber)
- {
- RImage* pLayerImage = NULL;
- if (sLayerNumber >= 0 && sLayerNumber < m_sNumLayers)
- {
- pLayerImage = m_apImages[sLayerNumber];
-
- if (pLayerImage == NULL)
- {
- ReadLayer(sLayerNumber);
- pLayerImage = m_apImages[sLayerNumber];
- }
- }
- return pLayerImage;
- }
- void RLaymage::FreeLayer(char* pszLayerName)
- {
- short i = 0;
- short bFound = FALSE;
- while (i < m_sNumLayers && !bFound)
- {
- if (strcmp(pszLayerName, m_apszLayerNames[i]) == 0)
- bFound = TRUE;
- else
- i++;
- }
- if (bFound && m_apImages[i] != NULL)
- {
- delete m_apImages[i];
- m_apImages[i] = NULL;
- }
- }
- void RLaymage::FreeLayer(short sLayerNumber)
- {
- if (sLayerNumber >= 0 && sLayerNumber < m_sNumLayers)
- if (m_apImages[sLayerNumber])
- {
- delete m_apImages[sLayerNumber];
- m_apImages[sLayerNumber] = NULL;
- }
- }
- void RLaymage::FreeAllLayers(void)
- {
- short i;
- for (i = 0; i < m_sNumLayers; i++)
- {
- if (m_apImages[i])
- {
- delete m_apImages[i];
- m_apImages[i] = NULL;
- }
- }
- }
- short RLaymage::GetLayerName(short sLayer, char* pszNameBuffer)
- {
- short sReturn = FAILURE;
-
- if (pszNameBuffer && sLayer >= 0 && sLayer < m_sNumLayers)
- {
- strcpy(pszNameBuffer, m_apszLayerNames[sLayer]);
- sReturn = SUCCESS;
- }
-
- return sReturn;
- }
- void RLaymage::FreeLayerArrays(void)
- {
- if (m_apImages)
- {
- FreeAllLayers();
- delete []m_apImages;
- m_apImages = NULL;
- }
- if (m_apszLayerNames)
- {
- short i;
- for (i = 0; i < m_sNumLayers; i++)
- if (m_apszLayerNames[i])
- delete []m_apszLayerNames[i];
- delete []m_apszLayerNames;
- m_apszLayerNames = NULL;
- }
- }
- short RLaymage::AllocateLayerArrays(short sNumLayers)
- {
- short sReturn = SUCCESS;
- short i;
- FreeLayerArrays();
-
- m_apImages = new RImage*[m_sNumLayers];
- if (m_apImages)
- {
- m_apszLayerNames = new char*[m_sNumLayers];
- if (!m_apszLayerNames)
- sReturn = FAILURE;
- }
- else
- sReturn = FAILURE;
- if (sReturn == SUCCESS)
- {
- for (i = 0; i < sNumLayers; i++)
- {
- m_apImages[i] = NULL;
- m_apszLayerNames[i] = NULL;
- }
- }
- return sReturn;
- }
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