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GPU: Implement "Crop Mode" (none, overscan, all borders)

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This commit is contained in:
Connor McLaughlin
2020-02-28 17:01:01 +10:00
parent 5df7fbd68c
commit fcc0ae9571
28 changed files with 491 additions and 337 deletions
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31
src/core/host_display.cpp
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@ -4,24 +4,45 @@ HostDisplayTexture::~HostDisplayTexture() = default;
HostDisplay::~HostDisplay() = default;
std::tuple<int, int, int, int> HostDisplay::CalculateDrawRect(int window_width, int window_height, float display_ratio)
void HostDisplay::WindowResized(s32 new_window_width, s32 new_window_height)
{
const float window_ratio = float(window_width) / float(window_height);
m_window_width = new_window_width;
m_window_height = new_window_height;
}
std::tuple<s32, s32, s32, s32> HostDisplay::CalculateDrawRect() const
{
const s32 window_width = m_window_width;
const s32 window_height = m_window_height - m_display_top_margin;
const float window_ratio = static_cast<float>(window_width) / static_cast<float>(window_height);
float scale;
int left, top, width, height;
if (window_ratio >= display_ratio)
if (window_ratio >= m_display_aspect_ratio)
{
width = static_cast<int>(float(window_height) * display_ratio);
width = static_cast<int>(static_cast<float>(window_height) * m_display_aspect_ratio);
height = static_cast<int>(window_height);
scale = static_cast<float>(window_height) / static_cast<float>(m_display_height);
left = (window_width - width) / 2;
top = 0;
}
else
{
width = static_cast<int>(window_width);
height = static_cast<int>(float(window_width) / display_ratio);
height = static_cast<int>(float(window_width) / m_display_aspect_ratio);
scale = static_cast<float>(window_width) / static_cast<float>(m_display_width);
left = 0;
top = (window_height - height) / 2;
}
// add in padding
left += static_cast<s32>(static_cast<float>(m_display_area.left) * scale);
top += static_cast<s32>(static_cast<float>(m_display_area.top) * scale);
width -= static_cast<s32>(static_cast<float>(m_display_area.left + (m_display_width - m_display_area.right)) * scale);
height -=
static_cast<s32>(static_cast<float>(m_display_area.top + (m_display_height - m_display_area.bottom)) * scale);
// add in margin
top += m_display_top_margin;
return std::tie(left, top, width, height);
}