In the SDL wiki it says
Use this function to perform a fast blit from the source surface to the destination surface.
However that doesn't help me much.
What does the term surface blitting mean in this context?
What is a Blit in SDL?
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4 Answers
It copies memory from one place in memory (source) to another place in memory (destination).
Eg. It can copy the pixels from one bitmap to another, from a bitmap to texture, or any of the above to the screen's surface or the screen's back buffer surface.
Say you have an image/tile that you want to display on the screen. You would perform a "blit" to copy the memory making up the image to the memory that is used on the screen.
It is, essentially, calling a function very much similar to memcpy() which copies the bytes specified as the source one-by-one to the bytes specified as the destination.
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