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basic algorithm

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This commit is contained in:
Laserlicht
2025-07-11 22:50:16 +02:00
parent 0d9fd09a6d
commit 7eae917497
8 changed files with 407 additions and 9 deletions
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41
client/renderSDL/SDLImage.cpp
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@@ -429,6 +429,47 @@ std::shared_ptr<const ISharedImage> SDLImageShared::verticalFlip() const
return ret;
}
std::shared_ptr<const ISharedImage> SDLImageShared::drawShadow(bool doSheer) const
{
if(upscalingInProgress)
throw std::runtime_error("Attempt to access images that is still being loaded!");
if (!surf)
return shared_from_this();
SDL_Surface * shadow = CSDL_Ext::drawShadow(surf, doSheer);
auto ret = std::make_shared<SDLImageShared>(shadow);
ret->fullSize = fullSize;
ret->margins.x = margins.x;
ret->margins.y = margins.y;
// erase our own reference
SDL_FreeSurface(shadow);
return ret;
}
std::shared_ptr<const ISharedImage> SDLImageShared::drawOutline(const ColorRGBA & color, int thickness) const
{
if(upscalingInProgress)
throw std::runtime_error("Attempt to access images that is still being loaded!");
if (!surf)
return shared_from_this();
SDL_Color sdlColor = { color.r, color.g, color.b, color.a };
SDL_Surface * outline = CSDL_Ext::drawOutline(surf, sdlColor, thickness);
auto ret = std::make_shared<SDLImageShared>(outline);
ret->fullSize = fullSize;
ret->margins.x = margins.x;
ret->margins.y = margins.y;
// erase our own reference
SDL_FreeSurface(outline);
return ret;
}
// Keep the original palette, in order to do color switching operation
void SDLImageShared::savePalette()
{