How does SDL pack pixels?

2019年5月15日 — A given SDL_Renderer is going to support at least one SDL_PixelFormatEnum; Other formats will work but may incur a conversion penalty at creation and/or use.

2018年7月20日 — Each pixel is byte-aligned, and can be 8, 16, 24 or 32-bit long. Even when palettes are used, each pixel has its own byte.

2016年1月21日 — This function converts pixels from any supported PixelFormat to another one. Plus, a suggestion for everybody: When working with bits, remember to check the ...

The SDL2 pixel formats fall into 3 different categories: packed formats, array formats and index formats (not described in this guide).

2018年6月14日 — Typically 32-bit colour on desktops means 8 red, 8 green, 8 blue and the remainder unused. Likewise, several APIs will report RGB or R8G8B8, ...

This function maps the RGB color value to the specified pixel format and returns the pixel value best approximating the given RGB color value for the given ...

An SDL_PixelFormat describes the format of the pixel data stored at the pixels field of an SDL_Surface. Every surface stores an SDL_PixelFormat in the format field. If you wish to do pixel level modifications on a surface, then understanding how SDL store

SDL_PIXELTYPE(format). the type of the pixel format; see Remarks for details. SDL_PIXELORDER(format). the ordering of channels or bits in the pixel format; ...

PixelFormat is only created in a SDL::Surface . This module only provides getters to the surface's pixelformat. Later on we will provide setting capability.

Description. A SDL_PixelFormat describes the format of the pixel data stored at the pixels field of a SDL_Surface. Every surface stores a SDL_PixelFormat ...