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GPU: Add pixel aspect ratio option

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Can display in 4:3, 16:9, 1:1 ratios.
This commit is contained in:
Connor McLaughlin
2020-04-10 15:12:16 +10:00
parent 3325d2c42c
commit fbfd838e22
10 changed files with 101 additions and 41 deletions
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27
src/core/host_display.cpp
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@ -20,32 +20,6 @@ void HostDisplay::WindowResized(s32 new_window_width, s32 new_window_height)
std::tuple<s32, s32, s32, s32> HostDisplay::CalculateDrawRect() const
{
#if 0
// convert display region to correct pixel aspect ratio
float display_width, display_height, active_left, active_top, active_width, active_height;
if (m_display_width >= m_display_height)
{
display_width = static_cast<float>(m_display_width);
display_height = static_cast<float>(m_display_width) / m_display_pixel_aspect_ratio;
const float scale = display_height / static_cast<float>(m_display_height);
active_left = static_cast<float>(m_display_active_left);
active_top = static_cast<float>(m_display_active_top) * scale;
active_width = static_cast<float>(m_display_active_width);
active_height = static_cast<float>(m_display_active_width) / m_display_pixel_aspect_ratio;
}
else
{
display_width = static_cast<float>(m_display_height) * m_display_pixel_aspect_ratio;
display_height = static_cast<float>(m_display_height);
const float scale = display_width / static_cast<float>(m_display_width);
active_left = static_cast<float>(m_display_active_left) * scale;
active_top = static_cast<float>(m_display_active_top);
active_width = static_cast<float>(m_display_active_height) * m_display_pixel_aspect_ratio;
active_height = static_cast<float>(m_display_active_height);
}
#else
const float y_scale =
(static_cast<float>(m_display_width) / static_cast<float>(m_display_height)) / m_display_pixel_aspect_ratio;
const float display_width = static_cast<float>(m_display_width);
@ -54,7 +28,6 @@ std::tuple<s32, s32, s32, s32> HostDisplay::CalculateDrawRect() const
const float active_top = static_cast<float>(m_display_active_top) * y_scale;
const float active_width = static_cast<float>(m_display_active_width);
const float active_height = static_cast<float>(m_display_active_height) * y_scale;
#endif
// now fit it within the window
const s32 window_width = m_window_width;