| Код |
bool TakeScreenshot(char* szFileName, int m_nWidth, int m_nHeight)
{
QGLImage Bitmap;
unsigned char* ImageData;
char szFilename[256];
CreateDirectory(szFileName, NULL);
sprintf(szFilename, "%s/screen%i.bmp", szFileName, numScreen);
ImageData= new unsigned char [m_nWidth*m_nHeight*3];
glReadPixels(-1, -1, m_nWidth, m_nHeight, GL_RGB, GL_UNSIGNED_BYTE, ImageData);//я вот за эту говорил.. т.е. поиши сотвествующую функцию в директе
SaveBMP(szFilename, m_nWidth, m_nHeight, ImageData);
numScreen++;
delete[] ImageData;
return true;
}
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ну и собственно сохраняем в BMP формат
Data - это указатель на данные нашей картинки
| Код |
bool QGLImage::SaveBMP(char* szFilename, unsigned int m_nWidth, unsigned int m_nHeight, unsigned char* Data)
{
FILE* pFile;
BITMAPFILEHEADER bitmapFileHeader;
BITMAPINFOHEADER bitmapInfoHeader;
unsigned char TempRGB;
unsigned int i;
pFile = fopen(szFilename, "wb");
if (!pFile) return false;
bitmapFileHeader.bfSize = sizeof(BITMAPFILEHEADER);
bitmapFileHeader.bfType = 0x4D42;
bitmapFileHeader.bfReserved1 = 0;
bitmapFileHeader.bfReserved2 = 0;
bitmapFileHeader.bfOffBits = sizeof(BITMAPFILEHEADER)+sizeof(BITMAPINFOHEADER);
bitmapInfoHeader.biSize = sizeof(BITMAPINFOHEADER);
bitmapInfoHeader.biPlanes = 1;
bitmapInfoHeader.biBitCount = 24;
bitmapInfoHeader.biCompression = BI_RGB;
bitmapInfoHeader.biSizeImage = m_nWidth*m_nHeight*3;
bitmapInfoHeader.biXPelsPerMeter = 0;
bitmapInfoHeader.biYPelsPerMeter = 0;
bitmapInfoHeader.biClrUsed = 0;
bitmapInfoHeader.biClrImportant = 0;
bitmapInfoHeader.biWidth = m_nWidth;
bitmapInfoHeader.biHeight = m_nHeight;
for( i=0; i<bitmapInfoHeader.biSizeImage; i+=3 )
{
TempRGB = Data[i];
Data[i] = Data[i+2];
Data[i+2] = TempRGB;
}
fwrite(&bitmapFileHeader, 1, sizeof(BITMAPFILEHEADER), pFile);
fwrite(&bitmapInfoHeader, 1, sizeof(BITMAPINFOHEADER), pFile);
fwrite(Data, 1, bitmapInfoHeader.biSizeImage, pFile);
fclose(pFile);
return true;
}
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