void IHDRParse(struct XPng* xpng, struct XBitmap* xbitmap, const unsigned char* stream,const char* bmpFileName)
{
int pixelFormat;
xpng->m_header.width= BYTE_TO_INT(stream);
xpng->m_header.height = BYTE_TO_INT(stream+4);
xpng->m_header.bitDepth = BYTE_TO_CHAR(stream+8);
xpng->m_header.colorType = BYTE_TO_CHAR(stream+9);
xpng->m_header.compressionMethod = BYTE_TO_CHAR(stream+10);
xpng->m_header.filterMode = BYTE_TO_CHAR(stream+11);
xpng->m_header.interlaceMethod = BYTE_TO_CHAR(stream+12);
printf("HEAD parsing %d %d %02x %02x %02x %02x %02x\n",
xpng->m_header.width,xpng->m_header.height,
xpng->m_header.bitDepth,xpng->m_header.colorType,
xpng->m_header.compressionMethod,xpng->m_header.filterMode,
xpng->m_header.interlaceMethod);
xpng->m_ColorMapTablePos = 0;
xpng->m_bPaletted = false;
if(xpng->m_header.colorType==COLORTYPE_COLOR_ALPHA)
{
xpng->m_ColorMapTableCur = colorMapTable_RGBA_2_BGRA;
xpng->m_ColorMapTableLen = sizeof(colorMapTable_RGBA_2_BGRA) / sizeof(colorMapTable_RGBA_2_BGRA[0]); // 결국은 4
pixelFormat = PIXELFORMAT_32;
}
else if(xpng->m_header.colorType==COLORTYPE_COLOR)
{
xpng->m_ColorMapTableCur = colorMapTable_RGB_2_BGR;
xpng->m_ColorMapTableLen = sizeof(colorMapTable_RGB_2_BGR) / sizeof(colorMapTable_RGB_2_BGR[0]); // 결국은 3
pixelFormat = PIXELFORMAT_24;
}
else if(xpng->m_header.colorType==COLORTYPE_COLOR_PAL)
{
// 빨레트를 쓴다. ALPHA 는 없다. 그래서 RGB 2 BGR 사용
xpng->m_ColorMapTableCur = colorMapTable_RGB_2_BGR;
xpng->m_ColorMapTableLen = sizeof(colorMapTable_RGB_2_BGR) / sizeof(colorMapTable_RGB_2_BGR[0]); // 결국은 3
xpng->m_bPaletted = true;
pixelFormat = PIXELFORMAT_32;
}
else
{
}
CreateDib(xbitmap, xpng->m_header.width, xpng->m_header.height, pixelFormat);
SetDecodeData(xpng, xbitmap->m_pixel, xbitmap->m_stride, xbitmap->m_paddingByte, xbitmap->m_pixelFormat / 8);
// BMP Header 생성
MakeBMPHeader(xbitmap, bmpFileName);
}
int ParsePng(const unsigned char* buffer, const unsigned char *stream, const char* bmpFileName)
{
int chunkLength;
int marker;
int end_marker = 0;
// xpng, bitmap 초기화
struct XPng *xpng;
struct XBitmap *xbitmap;
xpng = (struct XPng *)malloc(sizeof(struct XPng));
Init_png(xpng);
xbitmap = (struct XBitmap *)malloc(sizeof(struct XBitmap));
Init_Bmp(xbitmap);
// xpng 의 멤버인 inflate 초기화
xpng->m_pInflate = (struct XInflate *)calloc(1, sizeof(struct XInflate));
Init_inf(xpng->m_pInflate);
// end_marker를 만날때까지 돈다
while(!end_marker)
{
chunkLength = BYTE_TO_INT(stream); // 청크의 길이
marker = BYTE_TO_INT(stream+4); // 청크명
switch(marker)
{
case IHDR:
stream += 4 + 4; // data length(4) + chunk length(4)
printf("HEAD parsing..length : %d\n", chunkLength);
IHDRParse(xpng, xbitmap, stream, bmpFileName);
stream += chunkLength; // chunk size
break;
case sRGB:
stream += 4 + 4; // data length(4) + chunk length(4)
printf("sRGB parsing..length : %d\n", chunkLength);
stream += chunkLength; // chunk size
break;
case pHYs:
stream += 4 + 4; // data length(4) + chunk length(4)
printf("pHYs parsing..length : %d\n", chunkLength);
stream += chunkLength; // chunk size
break;
case gAMA:
stream += 4 + 4; // data length(4) + chunk length(4)
printf("gAMA parsing..length : %d\n", chunkLength);
stream += chunkLength; // chunk size
break;
case PLTE:
stream += 4 + 4; // data length(4) + chunk length(4)
printf("PLTE parsing..length : %d\n", chunkLength);
PLTEParse(xpng, stream, chunkLength);
stream += chunkLength; // chunk size
break;
case IDAT:
stream += 4 + 4; // data length(4) + chunk length(4)
printf("IDAT parsing..length : %d\n", chunkLength);
if(!xpng->m_bEnd)
{
stream += 2;
chunkLength -= 2;
xpng->m_filter_b_dummy = (unsigned char*)calloc(1, xpng->m_imageStride);
// IDATParse 안에서 true로 바꾼다
//xpng->m_bEnd = true;
}
IDATParse(xpng, xpng->m_pInflate, xbitmap, stream, chunkLength);
stream += chunkLength; // chunk size
break;
case tIME:
stream += 4 + 4; // data length(4) + chunk length(4)
printf("tIME parsing..length : %d\n", chunkLength);
stream += chunkLength; // chunk size
break;
case tEXt:
stream += 4 + 4; // data length(4) + chunk length(4)
printf("tEXt parsing..length : %d\n", chunkLength);
stream += chunkLength; // chunk size
break;
case IEND:
end_marker = 1;
IENDParse(xbitmap);
printf("IEND.....\n");
break;
default:
break;
}
stream += 4; // CRC(4)
}
// png, bitmap 해제
Destroy_inf(xpng->m_pInflate);
Destory_png(xpng);
free(xpng);
Destroy_Bmp(xbitmap);
free(xbitmap);
return 1;
}
void FORTE_F_BYTE_TO_INT::executeEvent(int pa_nEIID){
if(scm_nEventREQID == pa_nEIID){
OUT() = BYTE_TO_INT(IN());
sendOutputEvent(scm_nEventCNFID);
}
}
