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authorLiam <byteslice@airmail.cc>2023-11-30 18:33:26 +0100
committerLiam <byteslice@airmail.cc>2023-11-30 18:33:26 +0100
commite7dd968ac40ba10dc644ccc7269c6f77b8c734a9 (patch)
tree3ccc98a35b4799927dd77a8c386bac29f157a854 /src/video_core
parentMerge pull request #12229 from liamwhite/qcom-wtf (diff)
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Diffstat (limited to 'src/video_core')
-rw-r--r--src/video_core/renderer_vulkan/vk_rasterizer.cpp14
1 files changed, 10 insertions, 4 deletions
diff --git a/src/video_core/renderer_vulkan/vk_rasterizer.cpp b/src/video_core/renderer_vulkan/vk_rasterizer.cpp
index 07222e603..b6f52e017 100644
--- a/src/video_core/renderer_vulkan/vk_rasterizer.cpp
+++ b/src/video_core/renderer_vulkan/vk_rasterizer.cpp
@@ -75,14 +75,20 @@ VkViewport GetViewportState(const Device& device, const Maxwell& regs, size_t in
const float width = conv(src.scale_x * 2.0f);
float y = conv(src.translate_y - src.scale_y);
float height = conv(src.scale_y * 2.0f);
- bool y_negate = regs.window_origin.mode != Maxwell::WindowOrigin::Mode::UpperLeft;
- if (!device.IsNvViewportSwizzleSupported()) {
- y_negate = y_negate != (src.swizzle.y == Maxwell::ViewportSwizzle::NegativeY);
+ const bool lower_left = regs.window_origin.mode != Maxwell::WindowOrigin::Mode::UpperLeft;
+ const bool y_negate = !device.IsNvViewportSwizzleSupported() &&
+ src.swizzle.y == Maxwell::ViewportSwizzle::NegativeY;
+
+ if (lower_left) {
+ // Flip by surface clip height
+ y += conv(static_cast<f32>(regs.surface_clip.height));
+ height = -height;
}
if (y_negate) {
- y += conv(static_cast<f32>(regs.surface_clip.height));
+ // Flip by viewport height
+ y += height;
height = -height;
}