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GPUDevice: Fix incorrect positioning with PostFX and GL

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This commit is contained in:
Stenzek
2023-12-10 23:26:43 +10:00
parent 27162e34a0
commit 39913b2a39
5 changed files with 33 additions and 35 deletions
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30
src/util/opengl_device.cpp
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@ -1193,38 +1193,12 @@ void OpenGLDevice::SetScissor(s32 x, s32 y, s32 width, s32 height)
UpdateScissor();
}
std::tuple<s32, s32, s32, s32> OpenGLDevice::GetFlippedViewportScissor(const Common::Rectangle<s32>& rc) const
{
// Only when rendering to window framebuffer.
// We draw everything else upside-down.
s32 x, y, width, height;
if (m_current_fbo == 0)
{
const s32 sh = static_cast<s32>(m_window_info.surface_height);
const s32 rh = rc.GetHeight();
x = rc.left;
y = sh - rc.top - rh;
width = rc.GetWidth();
height = rh;
}
else
{
x = rc.left;
y = rc.top;
width = rc.GetWidth();
height = rc.GetHeight();
}
return std::tie(x, y, width, height);
}
void OpenGLDevice::UpdateViewport()
{
const auto& [x, y, width, height] = GetFlippedViewportScissor(m_last_viewport);
glViewport(x, y, width, height);
glViewport(m_last_viewport.left, m_last_viewport.top, m_last_viewport.GetWidth(), m_last_viewport.GetHeight());
}
void OpenGLDevice::UpdateScissor()
{
const auto& [x, y, width, height] = GetFlippedViewportScissor(m_last_scissor);
glScissor(x, y, width, height);
glScissor(m_last_scissor.left, m_last_scissor.top, m_last_scissor.GetWidth(), m_last_scissor.GetHeight());
}