How to video playback under DOS system in BC


Is how to make pictures of rapid succession show



For help

CodePudding user response:

"The rapid succession of display with pictures" is simple, if you want to support specific video formats are complex

CodePudding user response:

reference 1/f, play big shoot early nuclear response:

"rapid continuous display with pictures" is simple, if you want to support specific video format is complex

All I require is the former
Do you have what method or source code

I'm a bit too late time please

CodePudding user response:

Combined with your previous post, the so-called continuous display, is a picture of the data (in accordance with the format of the current resolution and color mode) is copied to the memory, for a small time delay, copy the picture,
Is a cycle in the execution memcpy, delay is to cooperate with display refresh rate, avoid memory update too fast to show out,
If a frame data is less than or equal to 64 k, it's as simple as that, if the big, also have to consider another page,

CodePudding user response:

Fine processing graphics driver, for example, consider to write memory away from the screen refresh read memory bus cycle, ensure the quality of images, but the za this retro code need not consider so fine,