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LibWeb: Flip vertically PaintingSurface attached to WebGL context

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OpenGL's origin is at the bottom-left corner, while Skia's origin is at
the top-left corner. This change adds a transformation to compensate for
this difference when rendering PaintingSurface attached to WebGL
context.
This commit is contained in:
Aliaksandr Kalenik 2024-11-30 16:52:09 +01:00 • committed by Alexander Kalenik
commit 45e0f50463
Notes: github-actions[bot] 2024-12-03 22:37:23 +00:00
3 changed files with 15 additions and 0 deletions
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1
Libraries/LibWeb/WebGL/OpenGLContext.cpp
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@ -122,6 +122,7 @@ void OpenGLContext::allocate_painting_surface_if_needed()
auto iosurface = Core::IOSurfaceHandle::create(m_size.width(), m_size.height());
m_painting_surface = Gfx::PaintingSurface::wrap_iosurface(iosurface, m_skia_backend_context);
m_painting_surface->set_flip_vertically();
auto width = m_size.width();
auto height = m_size.height();