From 260743f371236f7c57b01334b1c3474b15a47c39 Mon Sep 17 00:00:00 2001
From: ReinUsesLisp <reinuseslisp@airmail.cc>
Date: Fri, 19 Mar 2021 19:28:31 -0300
Subject: shader: Add partial rasterizer integration

---
 src/video_core/renderer_vulkan/maxwell_to_vk.cpp | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

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

diff --git a/src/video_core/renderer_vulkan/maxwell_to_vk.cpp b/src/video_core/renderer_vulkan/maxwell_to_vk.cpp
index f088447e9..dc4ff0da2 100644
--- a/src/video_core/renderer_vulkan/maxwell_to_vk.cpp
+++ b/src/video_core/renderer_vulkan/maxwell_to_vk.cpp
@@ -741,4 +741,28 @@ VkSamplerReductionMode SamplerReduction(Tegra::Texture::SamplerReduction reducti
     return VK_SAMPLER_REDUCTION_MODE_WEIGHTED_AVERAGE_EXT;
 }
 
+VkSampleCountFlagBits MsaaMode(Tegra::Texture::MsaaMode msaa_mode) {
+    switch (msaa_mode) {
+    case Tegra::Texture::MsaaMode::Msaa1x1:
+        return VK_SAMPLE_COUNT_1_BIT;
+    case Tegra::Texture::MsaaMode::Msaa2x1:
+    case Tegra::Texture::MsaaMode::Msaa2x1_D3D:
+        return VK_SAMPLE_COUNT_2_BIT;
+    case Tegra::Texture::MsaaMode::Msaa2x2:
+    case Tegra::Texture::MsaaMode::Msaa2x2_VC4:
+    case Tegra::Texture::MsaaMode::Msaa2x2_VC12:
+        return VK_SAMPLE_COUNT_4_BIT;
+    case Tegra::Texture::MsaaMode::Msaa4x2:
+    case Tegra::Texture::MsaaMode::Msaa4x2_D3D:
+    case Tegra::Texture::MsaaMode::Msaa4x2_VC8:
+    case Tegra::Texture::MsaaMode::Msaa4x2_VC24:
+        return VK_SAMPLE_COUNT_8_BIT;
+    case Tegra::Texture::MsaaMode::Msaa4x4:
+        return VK_SAMPLE_COUNT_16_BIT;
+    default:
+        UNREACHABLE_MSG("Invalid msaa_mode={}", static_cast<int>(msaa_mode));
+        return VK_SAMPLE_COUNT_1_BIT;
+    }
+}
+
 } // namespace Vulkan::MaxwellToVK
-- 
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