video_core: Implement vulkan QuadStrip topology

1 files changed, 6 insertions, 2 deletions

diff --git a/src/video_core/renderer_vulkan/vk_rasterizer.cpp b/src/video_core/renderer_vulkan/vk_rasterizer.cpp
index 823b9ca2a..3774f303a 100644
--- a/src/video_core/renderer_vulkan/vk_rasterizer.cpp
+++ b/src/video_core/renderer_vulkan/vk_rasterizer.cpp
@@ -138,12 +138,16 @@ DrawParams MakeDrawParams(const MaxwellDrawState& draw_state, u32 num_instances,
         .first_index = is_indexed ? draw_state.index_buffer.first : 0,
         .is_indexed = is_indexed,
     };
+    // 6 triangle vertices per quad, base vertex is part of the index
+    // See BindQuadIndexBuffer for more details
     if (draw_state.topology == Maxwell::PrimitiveTopology::Quads) {
-        // 6 triangle vertices per quad, base vertex is part of the index
-        // See BindQuadArrayIndexBuffer for more details
         params.num_vertices = (params.num_vertices / 4) * 6;
         params.base_vertex = 0;
         params.is_indexed = true;
+    } else if (draw_state.topology == Maxwell::PrimitiveTopology::QuadStrip) {
+        params.num_vertices = (params.num_vertices - 2) / 2 * 6;
+        params.base_vertex = 0;
+        params.is_indexed = true;
     }
     return params;
 }