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Add 32bpp blitter support for adjusting brightness of drawn sprites

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Jonathan G Rennison
2021-02-26 18:02:13 +00:00
parent 42e57995dd
commit 4ef363422a
10 changed files with 260 additions and 21 deletions
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src/blitter/base.hpp
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@@ -23,6 +23,8 @@ enum BlitterMode {
BM_TRANSPARENT, ///< Perform transparency colour remapping.
BM_CRASH_REMAP, ///< Perform a crash remapping.
BM_BLACK_REMAP, ///< Perform remapping to a completely blackened sprite
BM_NORMAL_WITH_BRIGHTNESS, ///< Perform a simple blitting with brightness adjustment
BM_COLOUR_REMAP_WITH_BRIGHTNESS, ///< Perform a colour remapping with brightness adjustment
};
/** Helper for using specialised functions designed to prevent whenever it's possible things like:
@@ -47,6 +49,7 @@ public:
struct BlitterParams {
const void *sprite; ///< Pointer to the sprite how ever the encoder stored it
const byte *remap; ///< XXX -- Temporary storage for remap array
int brightness_adjust; ///< Brightness adjustment
int skip_left; ///< How much pixels of the source to skip on the left (based on zoom of dst)
int skip_top; ///< How much pixels of the source to skip on the top (based on zoom of dst)