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rebrand as VTE passthrough
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roamic committed Jan 1, 2025
1 parent c230ed1 commit 8e944f9
Showing 1 changed file with 10 additions and 9 deletions.
19 changes: 10 additions & 9 deletions src/video_core/renderer_vulkan/vk_rasterizer.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -1074,16 +1074,17 @@ void Rasterizer::UpdateViewportScissorState() {
.extent = {vp_scsr.GetWidth(), vp_scsr.GetHeight()},
});

const bool viewport_disabled = !vp_ctl.xoffset_enable && !vp_ctl.xscale_enable &&
!vp_ctl.yoffset_enable && !vp_ctl.yscale_enable &&
!vp_ctl.zoffset_enable && !vp_ctl.zscale_enable;
if (viewport_disabled) {
// If viewport is disabled, normalized device coordinates should be treated as pixel
// coordinates and viewport should be at least as large as the scissors.
const bool vte_passthrough_enabled = !vp_ctl.xoffset_enable && !vp_ctl.xscale_enable &&
!vp_ctl.yoffset_enable && !vp_ctl.yscale_enable &&
!vp_ctl.zoffset_enable && !vp_ctl.zscale_enable &&
vp_ctl.xy_transformed && !vp_ctl.w_transformed;
if (vte_passthrough_enabled) {
// VTE passthrough is enabled. This means that vertex coordinates should be directly
// passed to pixel coordinates. Setup the viewport accordingly.
const auto& scissor = scissors.back();
const auto xoffset = float(scissor.offset.x);
const auto xscale = float(scissor.extent.width);
const auto yoffset = float(scissor.offset.y);
const auto xscale = float(scissor.extent.width);
const auto yscale = float(scissor.extent.height);
viewports.push_back({
.x = xoffset - xscale,
Expand All @@ -1095,10 +1096,10 @@ void Rasterizer::UpdateViewportScissorState() {
});
} else {
const auto xoffset = vp_ctl.xoffset_enable ? vp.xoffset : 0.f;
const auto xscale = vp_ctl.xscale_enable ? vp.xscale : 1.f;
const auto yoffset = vp_ctl.yoffset_enable ? vp.yoffset : 0.f;
const auto yscale = vp_ctl.yscale_enable ? vp.yscale : 1.f;
const auto zoffset = vp_ctl.zoffset_enable ? vp.zoffset : 0.f;
const auto xscale = vp_ctl.xscale_enable ? vp.xscale : 1.f;
const auto yscale = vp_ctl.yscale_enable ? vp.yscale : 1.f;
const auto zscale = vp_ctl.zscale_enable ? vp.zscale : 1.f;
viewports.push_back({
.x = xoffset - xscale,
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