From 9f2b20443b71668f3e173b1392c49a92a3e0cb53 Mon Sep 17 00:00:00 2001
From: Billy Laws <blaws05@gmail.com>
Date: Thu, 29 Sep 2022 20:55:08 +0100
Subject: [PATCH] Implement Maxwell3D draws

---
 .../interconnect/maxwell_3d/maxwell_3d.cpp    | 21 ++++++++++++++++---
 1 file changed, 18 insertions(+), 3 deletions(-)

diff --git a/app/src/main/cpp/skyline/gpu/interconnect/maxwell_3d/maxwell_3d.cpp b/app/src/main/cpp/skyline/gpu/interconnect/maxwell_3d/maxwell_3d.cpp
index f094fd40..e22596ce 100644
--- a/app/src/main/cpp/skyline/gpu/interconnect/maxwell_3d/maxwell_3d.cpp
+++ b/app/src/main/cpp/skyline/gpu/interconnect/maxwell_3d/maxwell_3d.cpp
@@ -240,16 +240,31 @@ namespace skyline::gpu::interconnect::maxwell3d {
             builder.SetDescriptorSetWithUpdate(descUpdateInfo, activeDescriptorSet, oldSet);
         }
 
+        auto stateUpdater{builder.Build()};
+
+        struct DrawParams {
+            u32 count;
+            u32 first;
+            u32 instanceCount;
+            u32 vertexOffset;
+            u32 firstInstance;
+            bool indexed;
+        };
+        auto *drawParams{ctx.executor.allocator->EmplaceUntracked<DrawParams>(DrawParams{count, first, instanceCount, vertexOffset, firstInstance, indexed})};
+
         const auto &surfaceClip{clearEngineRegisters.surfaceClip};
         vk::Rect2D scissor{
             {surfaceClip.horizontal.x, surfaceClip.vertical.y},
             {surfaceClip.horizontal.width, surfaceClip.vertical.height}
         };
 
-        auto stateUpdater{builder.Build()};
-        ctx.executor.AddSubpass([stateUpdater](vk::raii::CommandBuffer &commandBuffer, const std::shared_ptr<FenceCycle> &, GPU &gpu, vk::RenderPass, u32) {
+        ctx.executor.AddSubpass([stateUpdater, drawParams](vk::raii::CommandBuffer &commandBuffer, const std::shared_ptr<FenceCycle> &, GPU &gpu, vk::RenderPass, u32) {
             stateUpdater.RecordAll(gpu, commandBuffer);
-        }, scissor, {}, activeState.GetColorAttachments(), activeState.GetDepthAttachment());
+            if (drawParams->indexed)
+                commandBuffer.drawIndexed(drawParams->count, drawParams->instanceCount, drawParams->first, static_cast<i32>(drawParams->vertexOffset), drawParams->firstInstance);
+            else
+                commandBuffer.draw(drawParams->count, drawParams->instanceCount, drawParams->first, drawParams->firstInstance);
+        }, scissor, {}, activeState.GetColorAttachments(), activeState.GetDepthAttachment(), !ctx.gpu.traits.quirks.relaxedRenderPassCompatibility);
 
         constantBuffers.ResetQuickBind();
     }