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Flip the viewport for lower-left origin when the viewport transform is disabled (#373) 

The normal viewport path already flips Y when the window origin is lower left. The disabled-transform path did not, so the image was upside down in that case.
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Bruno 2026-10-07 04:39:30 +02:00 committed by GitHub
parent 362dff4ba8
commit da49c4c6e4
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1 changed files with 9 additions and 5 deletions
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14
src/yuzu_video_core/renderer_vulkan/vk_rasterizer.cpp
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@ -1030,14 +1030,18 @@ void RasterizerVulkan::UpdateViewportsState(Tegra::Engines::Maxwell3D::Regs& reg
}
if (!regs.viewport_scale_offset_enabled) {
const auto x = static_cast<float>(regs.surface_clip.x);
const auto y = static_cast<float>(regs.surface_clip.y);
const auto width = static_cast<float>(regs.surface_clip.width);
const auto height = static_cast<float>(regs.surface_clip.height);
float y = static_cast<float>(regs.surface_clip.y);
const float width = std::max(1.0f, static_cast<float>(regs.surface_clip.width));
float height = std::max(1.0f, static_cast<float>(regs.surface_clip.height));
if (regs.window_origin.mode != Maxwell::WindowOrigin::Mode::UpperLeft) {
y += height;
height = -height;
}
VkViewport viewport{
.x = x,
.y = y,
.width = width != 0.0f ? width : 1.0f,
.height = height != 0.0f ? height : 1.0f,
.width = width,
.height = height,
.minDepth = 0.0f,
.maxDepth = 1.0f,
};