[TEST] Playing with SGSR

src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/view/SettingsItem.kt

@@ -586,6 +586,7 @@ abstract class SettingsItem(
                     IntSetting.FSR_SHARPENING_SLIDER,
                     titleId = R.string.fsr_sharpness,
                     descriptionId = R.string.fsr_sharpness_description,
+                    max = 200,
                     units = "%"
                 )
             )

src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/EmulationFragment.kt

@@ -1182,7 +1182,7 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
                     container,
                     IntSetting.FSR_SHARPENING_SLIDER,
                     minValue = 0,
-                    maxValue = 100,
+                    maxValue = 200,
                     units = "%"
                 )
             }

src/video_core/host_shaders/sgsr1_shader.vert

@@ -7,6 +7,7 @@ layout(push_constant) uniform constants {
     vec2 scale;
     vec2 size;
     vec2 resize_factor;
+    vec2 crop_offset;
     float edge_sharpness;
 };
 layout(location = 0) out highp vec2 texcoord;
@@ -15,5 +16,5 @@ void main() {
     float x = float((gl_VertexIndex & 1) << 2);
     float y = float((gl_VertexIndex & 2) << 1);
     gl_Position = vec4(x - 1.0f, y - 1.0f, 0.0, 1.0f) * vec4(sign(resize_factor), 1.f, 1.f);
-    texcoord = vec2(x, y) * abs(resize_factor) * 0.5;
+    texcoord = crop_offset + vec2(x, y) * abs(resize_factor) * 0.5;
 }

src/video_core/host_shaders/sgsr1_shader_mobile.frag

@@ -14,6 +14,7 @@ layout(push_constant) uniform constants {
     vec2 scale;
     vec2 size;
     vec2 resize_factor;
+    vec2 crop_offset;
     float edge_sharpness;
 };
 layout(set = 0, binding = 0) uniform sampler2D sampler0;

src/video_core/host_shaders/sgsr1_shader_mobile_edge_direction.frag

@@ -13,6 +13,7 @@
 layout( push_constant ) uniform constants {
     vec4 ViewportInfo[1];
     vec2 ResizeFactor;
+    vec2 CropOffset;
     float EdgeSharpness;
 };
 layout(set = 0, binding = 0) uniform sampler2D ps0;

src/video_core/renderer_vulkan/present/sgsr.cpp

@@ -1,6 +1,8 @@
 // SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
 // SPDX-License-Identifier: GPL-3.0-or-later
 
+#include <algorithm>
+
 #include "common/common_types.h"
 #include "common/div_ceil.h"
 #include "common/settings.h"
@@ -17,7 +19,7 @@
 
 namespace Vulkan {
 
-using PushConstants = std::array<u32, 4 + 2 + 1>;
+using PushConstants = std::array<u32, 4 + 2 + 2 + 1>;
 
 SGSR::SGSR(const Device& device, MemoryAllocator& memory_allocator, size_t image_count, VkExtent2D extent, bool edge_dir)
     : m_memory_allocator{memory_allocator}
@@ -100,26 +102,28 @@ VkImageView SGSR::Draw(const Device& device, Scheduler& scheduler, size_t image_
 
     const f32 input_image_width = f32(input_image_extent.width);
     const f32 input_image_height = f32(input_image_extent.height);
-    const f32 viewport_width = (crop_rect.right - crop_rect.left) * input_image_width;
-    const f32 viewport_height = (crop_rect.bottom - crop_rect.top) * input_image_height;
-    // expected [0, 2]
-    const f32 sharpening = f32(Settings::values.fsr_sharpening_slider.GetValue()) / 100.0f;
+    const f32 crop_width = (crop_rect.right - crop_rect.left) * input_image_width;
+    const f32 crop_height = (crop_rect.bottom - crop_rect.top) * input_image_height;
+    static constexpr f32 EDGE_SHARPNESS_MAX = 2.0f;
+    const f32 edge_sharpness =
+        EDGE_SHARPNESS_MAX - f32(Settings::values.fsr_sharpening_slider.GetValue()) / 200.0f;
 
-    // p = (tex * viewport) / input = [0,n] (normalized texcoords)
-    // p * input = [0,1024], [0,768]
     // layout( push_constant ) uniform constants {
     //     highp vec4 ViewportInfo[1];
     //     highp vec2 ResizeFactor;
+    //     highp vec2 CropOffset;
     //     highp float EdgeSharpness;
     // };
     PushConstants viewport_con{};
-    viewport_con[0] = std::bit_cast<u32>(std::abs(1.f / viewport_width));
-    viewport_con[1] = std::bit_cast<u32>(std::abs(1.f / viewport_height));
-    viewport_con[2] = std::bit_cast<u32>(std::abs(viewport_width));
-    viewport_con[3] = std::bit_cast<u32>(std::abs(viewport_height));
-    viewport_con[4] = std::bit_cast<u32>(viewport_width / input_image_width);
-    viewport_con[5] = std::bit_cast<u32>(viewport_height / input_image_height);
-    viewport_con[6] = std::bit_cast<u32>(sharpening);
+    viewport_con[0] = std::bit_cast<u32>(1.f / input_image_width);
+    viewport_con[1] = std::bit_cast<u32>(1.f / input_image_height);
+    viewport_con[2] = std::bit_cast<u32>(input_image_width);
+    viewport_con[3] = std::bit_cast<u32>(input_image_height);
+    viewport_con[4] = std::bit_cast<u32>(crop_width / input_image_width);
+    viewport_con[5] = std::bit_cast<u32>(crop_height / input_image_height);
+    viewport_con[6] = std::bit_cast<u32>((std::min)(crop_rect.left, crop_rect.right));
+    viewport_con[7] = std::bit_cast<u32>((std::min)(crop_rect.top, crop_rect.bottom));
+    viewport_con[8] = std::bit_cast<u32>(edge_sharpness);
 
     UploadImages(device, scheduler);
     UpdateDescriptorSets(device, source_image_view, image_index);