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88 lines
2.4 KiB
88 lines
2.4 KiB
#include "DiabloUI/art_draw.h" |
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#include "DiabloUI/diabloui.h" |
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#include "utils/display.h" |
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#include "utils/sdl_compat.h" |
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#include "palette.h" |
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namespace devilution { |
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void UpdatePalette(Art *art, const SDL_Surface *output) |
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{ |
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if (art->surface->format->BitsPerPixel != 8) |
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return; |
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if (art->palette_version == pal_surface_palette_version) |
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return; |
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if (output == nullptr || output->format->BitsPerPixel != 8) |
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output = PalSurface; |
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if (SDLC_SetSurfaceColors(art->surface.get(), output->format->palette) <= -1) |
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ErrSdl(); |
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art->palette_version = pal_surface_palette_version; |
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} |
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void DrawArt(Point screenPosition, Art *art, int nFrame, Uint16 srcW, Uint16 srcH) |
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{ |
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if (art->surface == nullptr || screenPosition.y >= gnScreenHeight || screenPosition.x >= gnScreenWidth) |
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return; |
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SDL_Rect srcRect = MakeSdlRect(0, nFrame * art->h(), art->w(), art->h()); |
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ScaleOutputRect(&srcRect); |
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if (srcW != 0 && srcW < srcRect.w) |
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srcRect.w = srcW; |
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if (srcH != 0 && srcH < srcRect.h) |
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srcRect.h = srcH; |
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if (screenPosition.x + srcRect.w <= 0 || screenPosition.y + srcRect.h <= 0) |
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return; |
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SDL_Rect dstRect = MakeSdlRect(screenPosition.x, screenPosition.y, srcRect.w, srcRect.h); |
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ScaleOutputRect(&dstRect); |
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UpdatePalette(art); |
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if (SDL_BlitSurface(art->surface.get(), &srcRect, DiabloUiSurface(), &dstRect) < 0) |
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ErrSdl(); |
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} |
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void DrawArt(const Surface &out, Point position, Art *art, int nFrame, Uint16 srcW, Uint16 srcH) |
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{ |
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if (art->surface == nullptr || position.y >= out.h() || position.x >= out.w()) |
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return; |
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SDL_Rect srcRect = MakeSdlRect(0, nFrame * art->h(), art->w(), art->h()); |
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if (srcW != 0 && srcW < srcRect.w) |
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srcRect.w = srcW; |
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if (srcH != 0 && srcH < srcRect.h) |
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srcRect.h = srcH; |
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if (position.x + srcRect.w <= 0 || position.y + srcRect.h <= 0) |
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return; |
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out.Clip(&srcRect, &position); |
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SDL_Rect dstRect = MakeSdlRect(position.x + out.region.x, position.y + out.region.y, 0, 0); |
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UpdatePalette(art, out.surface); |
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if (SDL_BlitSurface(art->surface.get(), &srcRect, out.surface, &dstRect) < 0) |
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ErrSdl(); |
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} |
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void DrawAnimatedArt(Art *art, Point screenPosition) |
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{ |
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DrawArt(screenPosition, art, GetAnimationFrame(art->frames)); |
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} |
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int GetAnimationFrame(int frames, int fps) |
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{ |
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int frame = (SDL_GetTicks() / fps) % frames; |
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return frame > frames ? 0 : frame; |
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} |
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} // namespace devilution
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