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Added SDL_CreateSurfacePalette()

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This commit is contained in:
Sam Lantinga
2024-07-13 14:18:35 -07:00
parent 9379e2eb8d
commit 650271af46
9 changed files with 87 additions and 18 deletions
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docs/README-migration.md
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@@ -1644,7 +1644,20 @@ The `format` member of SDL_Surface is now an enumerated pixel format value. You
The userdata member of SDL_Surface has been replaced with a more general properties interface, which can be queried with SDL_GetSurfaceProperties()
Indexed format surfaces no longer have a palette by default. Surfaces without a palette will copy the pixels untranslated between surfaces. You should use SDL_CreatePalette() to create a palette and call SDL_SetSurfacePalette() to associate it with the final indexed surface before copying it to color pixels.
Indexed format surfaces no longer have a palette by default. Surfaces without a palette will copy the pixels untranslated between surfaces.
Code that used to look like this:
```c
SDL_Surface *surface = SDL_CreateRGBSurfaceWithFormat(0, 32, 32, 8, SDL_PIXELFORMAT_INDEX8);
SDL_Palette *palette = surface->format->palette;
...
```
should be changed to:
```c
SDL_Surface *surface = SDL_CreateSurface(32, 32, SDL_PIXELFORMAT_INDEX8);
SDL_Palette *palette = SDL_CreateSurfacePalette(surface);
...
```
Removed the unused 'flags' parameter from SDL_ConvertSurface.