Merge pull request #4081 from Morph1984/maxwell-to-gl-vk

maxwell_to_gl/vk: Miscellaneous changes

2 files changed, 19 insertions, 19 deletions

diff --git a/src/video_core/renderer_vulkan/maxwell_to_vk.cpp b/src/video_core/renderer_vulkan/maxwell_to_vk.cpp
index 62e950d31..1f2b6734b 100644
--- a/src/video_core/renderer_vulkan/maxwell_to_vk.cpp
+++ b/src/video_core/renderer_vulkan/maxwell_to_vk.cpp
@@ -21,29 +21,29 @@ namespace Sampler {
 
 VkFilter Filter(Tegra::Texture::TextureFilter filter) {
     switch (filter) {
-    case Tegra::Texture::TextureFilter::Linear:
-        return VK_FILTER_LINEAR;
     case Tegra::Texture::TextureFilter::Nearest:
         return VK_FILTER_NEAREST;
+    case Tegra::Texture::TextureFilter::Linear:
+        return VK_FILTER_LINEAR;
     }
-    UNIMPLEMENTED_MSG("Unimplemented sampler filter={}", static_cast<u32>(filter));
+    UNREACHABLE_MSG("Invalid sampler filter={}", static_cast<u32>(filter));
     return {};
 }
 
 VkSamplerMipmapMode MipmapMode(Tegra::Texture::TextureMipmapFilter mipmap_filter) {
     switch (mipmap_filter) {
     case Tegra::Texture::TextureMipmapFilter::None:
-        // TODO(Rodrigo): None seems to be mapped to OpenGL's mag and min filters without mipmapping
-        // (e.g. GL_NEAREST and GL_LINEAR). Vulkan doesn't have such a thing, find out if we have to
-        // use an image view with a single mipmap level to emulate this.
-        return VK_SAMPLER_MIPMAP_MODE_LINEAR;
-        ;
-    case Tegra::Texture::TextureMipmapFilter::Linear:
-        return VK_SAMPLER_MIPMAP_MODE_LINEAR;
+        // There are no Vulkan filter modes that directly correspond to OpenGL minification filters
+        // of GL_LINEAR or GL_NEAREST, but they can be emulated using
+        // VK_SAMPLER_MIPMAP_MODE_NEAREST, minLod = 0, and maxLod = 0.25, and using minFilter =
+        // VK_FILTER_LINEAR or minFilter = VK_FILTER_NEAREST, respectively.
+        return VK_SAMPLER_MIPMAP_MODE_NEAREST;
     case Tegra::Texture::TextureMipmapFilter::Nearest:
         return VK_SAMPLER_MIPMAP_MODE_NEAREST;
+    case Tegra::Texture::TextureMipmapFilter::Linear:
+        return VK_SAMPLER_MIPMAP_MODE_LINEAR;
     }
-    UNIMPLEMENTED_MSG("Unimplemented sampler mipmap mode={}", static_cast<u32>(mipmap_filter));
+    UNREACHABLE_MSG("Invalid sampler mipmap mode={}", static_cast<u32>(mipmap_filter));
     return {};
 }
 
@@ -78,10 +78,9 @@ VkSamplerAddressMode WrapMode(const VKDevice& device, Tegra::Texture::WrapMode w
     case Tegra::Texture::WrapMode::MirrorOnceBorder:
         UNIMPLEMENTED();
         return VK_SAMPLER_ADDRESS_MODE_MIRROR_CLAMP_TO_EDGE;
-    default:
-        UNIMPLEMENTED_MSG("Unimplemented wrap mode={}", static_cast<u32>(wrap_mode));
-        return {};
     }
+    UNIMPLEMENTED_MSG("Unimplemented wrap mode={}", static_cast<u32>(wrap_mode));
+    return {};
 }
 
 VkCompareOp DepthCompareFunction(Tegra::Texture::DepthCompareFunc depth_compare_func) {
@@ -288,10 +287,9 @@ VkPrimitiveTopology PrimitiveTopology([[maybe_unused]] const VKDevice& device,
         return VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST;
     case Maxwell::PrimitiveTopology::Patches:
         return VK_PRIMITIVE_TOPOLOGY_PATCH_LIST;
-    default:
-        UNIMPLEMENTED_MSG("Unimplemented topology={}", static_cast<u32>(topology));
-        return {};
     }
+    UNIMPLEMENTED_MSG("Unimplemented topology={}", static_cast<u32>(topology));
+    return {};
 }
 
 VkFormat VertexFormat(Maxwell::VertexAttribute::Type type, Maxwell::VertexAttribute::Size size) {
diff --git a/src/video_core/renderer_vulkan/vk_sampler_cache.cpp b/src/video_core/renderer_vulkan/vk_sampler_cache.cpp
index e6f2fa553..616eacc36 100644
--- a/src/video_core/renderer_vulkan/vk_sampler_cache.cpp
+++ b/src/video_core/renderer_vulkan/vk_sampler_cache.cpp
@@ -9,6 +9,8 @@
 #include "video_core/renderer_vulkan/wrapper.h"
 #include "video_core/textures/texture.h"
 
+using Tegra::Texture::TextureMipmapFilter;
+
 namespace Vulkan {
 
 namespace {
@@ -63,8 +65,8 @@ vk::Sampler VKSamplerCache::CreateSampler(const Tegra::Texture::TSCEntry& tsc) c
     ci.maxAnisotropy = tsc.GetMaxAnisotropy();
     ci.compareEnable = tsc.depth_compare_enabled;
     ci.compareOp = MaxwellToVK::Sampler::DepthCompareFunction(tsc.depth_compare_func);
-    ci.minLod = tsc.GetMinLod();
-    ci.maxLod = tsc.GetMaxLod();
+    ci.minLod = tsc.mipmap_filter == TextureMipmapFilter::None ? 0.0f : tsc.GetMinLod();
+    ci.maxLod = tsc.mipmap_filter == TextureMipmapFilter::None ? 0.25f : tsc.GetMaxLod();
     ci.borderColor = arbitrary_borders ? VK_BORDER_COLOR_INT_CUSTOM_EXT : ConvertBorderColor(color);
     ci.unnormalizedCoordinates = VK_FALSE;
     return device.GetLogical().CreateSampler(ci);