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renderer: add area sampling scaling method (#201)

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Adds Area Sampling to the list of scaling options. Works well to achieve a high-quality, smooth super-sampling effect. Dolphin has had this for a while and so has Ryujinx, so lui decided to port it.

Adapted from these two PRs:
https://github.com/Ryujinx/Ryujinx/pull/7304
https://github.com/dolphin-emu/dolphin/pull/11999

Credit: Torzu, lui

Reviewed-on: http://vub63vv26q6v27xzv2dtcd25xumubshogm67yrpaz2rculqxs7jlfqad.onion/torzu-emu/torzu/pulls/57
Co-authored-by: lui <lui@vub63vv26q6v27xzv2dtcd25xumubshogm67yrpaz2rculqxs7jlfqad.onion>
Co-committed-by: lui <lui@vub63vv26q6v27xzv2dtcd25xumubshogm67yrpaz2rculqxs7jlfqad.onion>

Co-authored-by: lui <lui@vub63vv26q6v27xzv2dtcd25xumubshogm67yrpaz2rculqxs7jlfqad.onion>
Co-authored-by: crueter <swurl@swurl.xyz>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/201
Co-authored-by: JPikachu <jpikachu.eden@gmail.com>
Co-committed-by: JPikachu <jpikachu.eden@gmail.com>
This commit is contained in:
JPikachu 2025-06-21 13:35:04 +00:00 • committed by JPikachu
parent 8c33b0bb5d
commit 2946cdbd2d
16 changed files with 205 additions and 1 deletions
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12
src/video_core/renderer_vulkan/present/filters.cpp
View file

@ -1,8 +1,15 @@
// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: Copyright 2024 Torzu Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "common/common_types.h"
#include "video_core/host_shaders/present_area_frag_spv.h"
#include "video_core/host_shaders/present_bicubic_frag_spv.h"
#include "video_core/host_shaders/present_gaussian_frag_spv.h"
#include "video_core/host_shaders/vulkan_present_frag_spv.h"
@ -53,4 +60,9 @@ std::unique_ptr<WindowAdaptPass> MakeScaleForce(const Device& device, VkFormat f
SelectScaleForceShader(device));
}
std::unique_ptr<WindowAdaptPass> MakeArea(const Device& device, VkFormat frame_format) {
return std::make_unique<WindowAdaptPass>(device, frame_format, CreateBilinearSampler(device),
BuildShader(device, PRESENT_AREA_FRAG_SPV));
}
} // namespace Vulkan

7
src/video_core/renderer_vulkan/present/filters.h
View file

@ -1,3 +1,9 @@
// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: Copyright 2024 Torzu Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
@ -14,5 +20,6 @@ std::unique_ptr<WindowAdaptPass> MakeBilinear(const Device& device, VkFormat fra
std::unique_ptr<WindowAdaptPass> MakeBicubic(const Device& device, VkFormat frame_format);
std::unique_ptr<WindowAdaptPass> MakeGaussian(const Device& device, VkFormat frame_format);
std::unique_ptr<WindowAdaptPass> MakeScaleForce(const Device& device, VkFormat frame_format);
std::unique_ptr<WindowAdaptPass> MakeArea(const Device& device, VkFormat frame_format);
} // namespace Vulkan

9
src/video_core/renderer_vulkan/vk_blit_screen.cpp
View file

@ -1,3 +1,9 @@
// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: Copyright 2024 Torzu Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
@ -43,6 +49,9 @@ void BlitScreen::SetWindowAdaptPass() {
case Settings::ScalingFilter::ScaleForce:
window_adapt = MakeScaleForce(device, swapchain_view_format);
break;
case Settings::ScalingFilter::Area:
window_adapt = MakeArea(device, swapchain_view_format);
break;
case Settings::ScalingFilter::Fsr:
case Settings::ScalingFilter::Bilinear:
default: