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Merge pull request #8049 from stenzek/crop

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Renderer: Adjust source rectangle when crop would draw off screen
This commit is contained in:
Connor McLaughlin
2019-06-08 20:57:52 +10:00
committed by GitHub
parent b13e00b003 32359bf2bb
commit 951b66e4ac
8 changed files with 83 additions and 28 deletions
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54
Source/Core/VideoCommon/RenderBase.cpp
View File

@ -556,6 +556,40 @@ float Renderer::CalculateDrawAspectRatio() const
}
}
void Renderer::AdjustRectanglesToFitBounds(MathUtil::Rectangle<int>* target_rect,
MathUtil::Rectangle<int>* source_rect, int fb_width,
int fb_height)
{
const int orig_target_width = target_rect->GetWidth();
const int orig_target_height = target_rect->GetHeight();
const int orig_source_width = source_rect->GetWidth();
const int orig_source_height = source_rect->GetHeight();
if (target_rect->left < 0)
{
const int offset = -target_rect->left;
target_rect->left = 0;
source_rect->left += offset * orig_source_width / orig_target_width;
}
if (target_rect->right > fb_width)
{
const int offset = target_rect->right - fb_width;
target_rect->right -= offset;
source_rect->right -= offset * orig_source_width / orig_target_width;
}
if (target_rect->top < 0)
{
const int offset = -target_rect->top;
target_rect->top = 0;
source_rect->top += offset * orig_source_height / orig_target_height;
}
if (target_rect->bottom > fb_height)
{
const int offset = target_rect->bottom - fb_height;
target_rect->right -= offset;
source_rect->right -= offset * orig_source_height / orig_target_height;
}
}
bool Renderer::IsHeadless() const
{
return true;
@ -1212,7 +1246,14 @@ void Renderer::Swap(u32 xfb_addr, u32 fb_width, u32 fb_stride, u32 fb_height, u6
{
BindBackbuffer({{0.0f, 0.0f, 0.0f, 1.0f}});
UpdateDrawRectangle();
RenderXFBToScreen(xfb_entry->texture.get(), xfb_rect);
// Adjust the source rectangle instead of using an oversized viewport to render the XFB.
auto render_target_rc = GetTargetRectangle();
auto render_source_rc = xfb_rect;
AdjustRectanglesToFitBounds(&render_target_rc, &xfb_rect, m_backbuffer_width,
m_backbuffer_height);
RenderXFBToScreen(render_target_rc, xfb_entry->texture.get(), render_source_rc);
DrawImGui();
// Present to the window system.
@ -1280,21 +1321,22 @@ void Renderer::Swap(u32 xfb_addr, u32 fb_width, u32 fb_stride, u32 fb_height, u6
}
}
void Renderer::RenderXFBToScreen(const AbstractTexture* texture, const MathUtil::Rectangle<int>& rc)
void Renderer::RenderXFBToScreen(const MathUtil::Rectangle<int>& target_rc,
const AbstractTexture* source_texture,
const MathUtil::Rectangle<int>& source_rc)
{
const auto target_rc = GetTargetRectangle();
if (g_ActiveConfig.stereo_mode == StereoMode::SBS ||
g_ActiveConfig.stereo_mode == StereoMode::TAB)
{
MathUtil::Rectangle<int> left_rc, right_rc;
std::tie(left_rc, right_rc) = ConvertStereoRectangle(target_rc);
m_post_processor->BlitFromTexture(left_rc, rc, texture, 0);
m_post_processor->BlitFromTexture(right_rc, rc, texture, 1);
m_post_processor->BlitFromTexture(left_rc, source_rc, source_texture, 0);
m_post_processor->BlitFromTexture(right_rc, source_rc, source_texture, 1);
}
else
{
m_post_processor->BlitFromTexture(target_rc, rc, texture, 0);
m_post_processor->BlitFromTexture(target_rc, source_rc, source_texture, 0);
}
}

12
Source/Core/VideoCommon/RenderBase.h
View File

@ -170,6 +170,13 @@ public:
const MathUtil::Rectangle<int>& GetTargetRectangle() const { return m_target_rectangle; }
float CalculateDrawAspectRatio() const;
// Crops the target rectangle to the framebuffer dimensions, reducing the size of the source
// rectangle if it is greater. Works even if the source and target rectangles don't have a
// 1:1 pixel mapping, scaling as appropriate.
void AdjustRectanglesToFitBounds(MathUtil::Rectangle<int>* target_rect,
MathUtil::Rectangle<int>* source_rect, int fb_width,
int fb_height);
std::tuple<float, float> ScaleToDisplayAspectRatio(int width, int height) const;
void UpdateDrawRectangle();
@ -215,8 +222,9 @@ public:
// Draws the specified XFB buffer to the screen, performing any post-processing.
// Assumes that the backbuffer has already been bound and cleared.
virtual void RenderXFBToScreen(const AbstractTexture* texture,
const MathUtil::Rectangle<int>& rc);
virtual void RenderXFBToScreen(const MathUtil::Rectangle<int>& target_rc,
const AbstractTexture* source_texture,
const MathUtil::Rectangle<int>& source_rc);
// Called when the configuration changes, and backend structures need to be updated.
virtual void OnConfigChanged(u32 bits) {}