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LibGfx: Rename 32-bit BitmapFormats to BGRA8888 and BGRx888x

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The previous names (RGBA32 and RGB32) were misleading since that's not
the actual byte order in memory. The new names reflect exactly how the
color values get laid out in bitmap data.
This commit is contained in:
Andreas Kling 2021-03-16 11:48:42 +01:00
parent 0bfdf95af6
commit e0f32626bc
31 changed files with 70 additions and 70 deletions
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6
Userland/Demos/LibGfxScaleDemo/main.cpp
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@ -58,15 +58,15 @@ private:
Canvas::Canvas()
{
m_bitmap_1x = Gfx::Bitmap::create(Gfx::BitmapFormat::RGB32, { WIDTH, HEIGHT }, 1);
m_bitmap_2x = Gfx::Bitmap::create(Gfx::BitmapFormat::RGB32, { WIDTH, HEIGHT }, 2);
m_bitmap_1x = Gfx::Bitmap::create(Gfx::BitmapFormat::BGRx8888, { WIDTH, HEIGHT }, 1);
m_bitmap_2x = Gfx::Bitmap::create(Gfx::BitmapFormat::BGRx8888, { WIDTH, HEIGHT }, 2);
// m_bitmap_1x and m_bitmap_2x have the same logical size, so LibGfx will try to draw them at the same physical size:
// When drawing on a 2x backing store it'd scale m_bitmap_1x up 2x and paint m_bitmap_2x at its physical size.
// When drawing on a 1x backing store it'd draw m_bitmap_1x at its physical size, and it would have to scale down m_bitmap_2x to 0.5x its size.
// But the system can't current scale down, and we want to draw the 2x bitmap at twice the size of the 1x bitmap in this particular application,
// so make a 1x alias of the 2x bitmap to make LibGfx paint it without any scaling at paint time, mapping once pixel to one pixel.
m_bitmap_2x_as_1x = Gfx::Bitmap::create_wrapper(Gfx::BitmapFormat::RGB32, m_bitmap_2x->physical_size(), 1, m_bitmap_2x->pitch(), m_bitmap_2x->scanline(0));
m_bitmap_2x_as_1x = Gfx::Bitmap::create_wrapper(Gfx::BitmapFormat::BGRx8888, m_bitmap_2x->physical_size(), 1, m_bitmap_2x->pitch(), m_bitmap_2x->scanline(0));
Gfx::Painter painter_1x(*m_bitmap_1x);
draw(painter_1x);