From 2f90694797e30088820937855acf613bdcf27247 Mon Sep 17 00:00:00 2001
From: FengChen <vonchenplus@gmail.com>
Date: Fri, 21 Oct 2022 19:14:22 +0800
Subject: video_core: Implement maxwell inline_index method

---
 src/video_core/renderer_vulkan/vk_rasterizer.cpp | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'src/video_core/renderer_vulkan/vk_rasterizer.cpp')

diff --git a/src/video_core/renderer_vulkan/vk_rasterizer.cpp b/src/video_core/renderer_vulkan/vk_rasterizer.cpp
index 9a7d90b2a..9f05a7a18 100644
--- a/src/video_core/renderer_vulkan/vk_rasterizer.cpp
+++ b/src/video_core/renderer_vulkan/vk_rasterizer.cpp
@@ -193,6 +193,8 @@ void RasterizerVulkan::Draw(bool is_indexed, u32 instance_count) {
     pipeline->SetEngine(maxwell3d, gpu_memory);
     pipeline->Configure(is_indexed);
 
+    BindInlineIndexBuffer();
+
     BeginTransformFeedback();
 
     UpdateDynamicStates();
@@ -1008,4 +1010,17 @@ void RasterizerVulkan::ReleaseChannel(s32 channel_id) {
     query_cache.EraseChannel(channel_id);
 }
 
+void RasterizerVulkan::BindInlineIndexBuffer() {
+    if (maxwell3d->inline_index_draw_indexes.empty()) {
+        return;
+    }
+    const auto data_count = static_cast<u32>(maxwell3d->inline_index_draw_indexes.size());
+    auto buffer = buffer_cache_runtime.UploadStagingBuffer(data_count);
+    std::memcpy(buffer.mapped_span.data(), maxwell3d->inline_index_draw_indexes.data(), data_count);
+    buffer_cache_runtime.BindIndexBuffer(
+        maxwell3d->regs.draw.topology, maxwell3d->regs.index_buffer.format,
+        maxwell3d->regs.index_buffer.first, maxwell3d->regs.index_buffer.count, buffer.buffer,
+        static_cast<u32>(buffer.offset), data_count);
+}
+
 } // namespace Vulkan
-- 
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