A simple C funtion for saving RGB/RGBA image as uncompressed BMP.
- RGB or RGBA format. (RGBA format can't be displayed correctly in BMP)
- Single function
- No dependency
Basically, you fopen() a binary file for writing, then call this function with the image data. The pixels are packed linearly from bottom to top, left to right.
For 24-bit RGB, parameter alpha should be set to 0, the R, G, B components are stored as img[(w*y+x)*3], img[(w*y+x)*3+1], img[(w*y+x)*3+2], respectively.
For 32-bit RGBA, parameter alpha should be set to 0, the R, G, B, A components are stored as img[(w*y+x)*4], img[(w*y+x)*4+1], img[(w*y+x)*4+2], respectively.
test.c saves a RGB aand a RGBA BMP.
