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LibGfx: Add Bitmap::strip_alpha_channel()

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Sets all alpha values to 0xff and sets the bitmap's format to BGRx8888.

Currently only implemented for BGRA8888 and BGRx8888.
This commit is contained in:
Nico Weber 2023-06-13 19:23:38 -04:00 • committed by Andreas Kling
parent 6e0fc5e221
commit d70ddc8961
2 changed files with 11 additions and 0 deletions
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3
Userland/Libraries/LibGfx/Bitmap.h
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@ -212,6 +212,9 @@ public:
[[nodiscard]] bool has_alpha_channel() const { return m_format == BitmapFormat::BGRA8888 || m_format == BitmapFormat::RGBA8888; }
[[nodiscard]] BitmapFormat format() const { return m_format; }
// Call only for BGRx8888 and BGRA8888 bitmaps.
void strip_alpha_channel();
void set_mmap_name(DeprecatedString const&);
[[nodiscard]] static constexpr size_t size_in_bytes(size_t pitch, int physical_height) { return pitch * physical_height; }