Presentation: add Nearest Neighbor filter.

2 files changed, 37 insertions, 8 deletions

diff --git a/src/video_core/renderer_vulkan/vk_blit_screen.cpp b/src/video_core/renderer_vulkan/vk_blit_screen.cpp
index 8ce60e874..334eeb92e 100644
--- a/src/video_core/renderer_vulkan/vk_blit_screen.cpp
+++ b/src/video_core/renderer_vulkan/vk_blit_screen.cpp
@@ -152,7 +152,9 @@ VkSemaphore VKBlitScreen::Draw(const Tegra::FramebufferConfig& framebuffer,
         use_accelerated ? screen_info.image_view : *raw_image_views[image_index];
 
     if (!fsr) {
-        UpdateDescriptorSet(image_index, source_image_view);
+        const bool is_nn =
+            Settings::values.scaling_filter.GetValue() == Settings::ScalingFilter::NearestNeighbor;
+        UpdateDescriptorSet(image_index, source_image_view, is_nn);
     }
 
     BufferData data;
@@ -247,7 +249,7 @@ VkSemaphore VKBlitScreen::Draw(const Tegra::FramebufferConfig& framebuffer,
         crop_rect = crop_rect.Scale(Settings::values.resolution_info.up_factor);
         VkImageView fsr_image_view =
             fsr->Draw(scheduler, image_index, source_image_view, crop_rect);
-        UpdateDescriptorSet(image_index, fsr_image_view);
+        UpdateDescriptorSet(image_index, fsr_image_view, true);
     }
 
     scheduler.Record(
@@ -286,6 +288,9 @@ VkSemaphore VKBlitScreen::Draw(const Tegra::FramebufferConfig& framebuffer,
             const auto filter = Settings::values.scaling_filter.GetValue();
             cmdbuf.BeginRenderPass(renderpass_bi, VK_SUBPASS_CONTENTS_INLINE);
             switch (filter) {
+            case Settings::ScalingFilter::NearestNeighbor:
+                cmdbuf.BindPipeline(VK_PIPELINE_BIND_POINT_GRAPHICS, *bilinear_pipeline);
+                break;
             case Settings::ScalingFilter::Bilinear:
                 cmdbuf.BindPipeline(VK_PIPELINE_BIND_POINT_GRAPHICS, *bilinear_pipeline);
                 break;
@@ -745,13 +750,33 @@ void VKBlitScreen::CreateGraphicsPipeline() {
 }
 
 void VKBlitScreen::CreateSampler() {
-    bool linear = Settings::values.scaling_filter.GetValue() != Settings::ScalingFilter::Fsr;
     const VkSamplerCreateInfo ci{
         .sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO,
         .pNext = nullptr,
         .flags = 0,
-        .magFilter = linear ? VK_FILTER_LINEAR : VK_FILTER_NEAREST,
-        .minFilter = linear ? VK_FILTER_LINEAR : VK_FILTER_NEAREST,
+        .magFilter = VK_FILTER_LINEAR,
+        .minFilter = VK_FILTER_LINEAR,
+        .mipmapMode = VK_SAMPLER_MIPMAP_MODE_NEAREST,
+        .addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_BORDER,
+        .addressModeV = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_BORDER,
+        .addressModeW = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_BORDER,
+        .mipLodBias = 0.0f,
+        .anisotropyEnable = VK_FALSE,
+        .maxAnisotropy = 0.0f,
+        .compareEnable = VK_FALSE,
+        .compareOp = VK_COMPARE_OP_NEVER,
+        .minLod = 0.0f,
+        .maxLod = 0.0f,
+        .borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_BLACK,
+        .unnormalizedCoordinates = VK_FALSE,
+    };
+
+    const VkSamplerCreateInfo ci_nn{
+        .sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO,
+        .pNext = nullptr,
+        .flags = 0,
+        .magFilter = VK_FILTER_NEAREST,
+        .minFilter = VK_FILTER_NEAREST,
         .mipmapMode = VK_SAMPLER_MIPMAP_MODE_NEAREST,
         .addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_BORDER,
         .addressModeV = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_BORDER,
@@ -768,6 +793,7 @@ void VKBlitScreen::CreateSampler() {
     };
 
     sampler = device.GetLogical().CreateSampler(ci);
+    nn_sampler = device.GetLogical().CreateSampler(ci_nn);
 }
 
 void VKBlitScreen::CreateFramebuffers() {
@@ -862,7 +888,8 @@ void VKBlitScreen::CreateRawImages(const Tegra::FramebufferConfig& framebuffer)
     }
 }
 
-void VKBlitScreen::UpdateDescriptorSet(std::size_t image_index, VkImageView image_view) const {
+void VKBlitScreen::UpdateDescriptorSet(std::size_t image_index, VkImageView image_view,
+                                       bool nn) const {
     const VkDescriptorBufferInfo buffer_info{
         .buffer = *buffer,
         .offset = offsetof(BufferData, uniform),
@@ -883,7 +910,7 @@ void VKBlitScreen::UpdateDescriptorSet(std::size_t image_index, VkImageView imag
     };
 
     const VkDescriptorImageInfo image_info{
-        .sampler = *sampler,
+        .sampler = nn ? *nn_sampler : *sampler,
         .imageView = image_view,
         .imageLayout = VK_IMAGE_LAYOUT_GENERAL,
     };
diff --git a/src/video_core/renderer_vulkan/vk_blit_screen.h b/src/video_core/renderer_vulkan/vk_blit_screen.h
index 337931468..448a2fbe6 100644
--- a/src/video_core/renderer_vulkan/vk_blit_screen.h
+++ b/src/video_core/renderer_vulkan/vk_blit_screen.h
@@ -90,7 +90,7 @@ private:
     void CreateStagingBuffer(const Tegra::FramebufferConfig& framebuffer);
     void CreateRawImages(const Tegra::FramebufferConfig& framebuffer);
 
-    void UpdateDescriptorSet(std::size_t image_index, VkImageView image_view) const;
+    void UpdateDescriptorSet(std::size_t image_index, VkImageView image_view, bool nn) const;
     void SetUniformData(BufferData& data, const Layout::FramebufferLayout layout) const;
     void SetVertexData(BufferData& data, const Tegra::FramebufferConfig& framebuffer,
                        const Layout::FramebufferLayout layout) const;
@@ -115,12 +115,14 @@ private:
     vk::DescriptorPool descriptor_pool;
     vk::DescriptorSetLayout descriptor_set_layout;
     vk::PipelineLayout pipeline_layout;
+    vk::Pipeline nearest_neightbor_pipeline;
     vk::Pipeline bilinear_pipeline;
     vk::Pipeline bicubic_pipeline;
     vk::Pipeline scaleforce_pipeline;
     vk::RenderPass renderpass;
     std::vector<vk::Framebuffer> framebuffers;
     vk::DescriptorSets descriptor_sets;
+    vk::Sampler nn_sampler;
     vk::Sampler sampler;
 
     vk::Buffer buffer;