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https://git.eden-emu.dev/eden-emu/eden.git
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CamilleLaVey
ed566919f4
Very self-explanatory; implementation of the feature for post-processing shaders for Android (at least for now); will allow users to enhance the graphic quality of video games based on the use of multiple shaders adjustable, presets and more, inspired on the PPSSPP implementation, this feature adds 22 customizable shaders (1 pass) that lives on the overlay of the screen, which means that aside of the capability to chain multiple shaders on the screen, this doesn't have depths (pixel/ depth z-buffer) so it ensures the performance with it's use. Few shaders were a faithful port from PPSSPP with their respective attribution on the shader headers for their respective owners; and there are adaptations from public references/ cinematographic (Anime4K) and the rest are my own addition. _Special Credits:_ 1.- PPSSPP Team for their contribution on the public references for shaders: Henrik Rydgard, ShadX, SimoneT, KillaMaaki and guest(r). 2.- Niklas Haas. 3.- bloc97. Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4348 Reviewed-by: lizzie <lizzie@eden-emu.dev> Reviewed-by: Maufeat <sahyno1996@gmail.com>
44 lines
1.3 KiB
HLSL
44 lines
1.3 KiB
HLSL
// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
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// SPDX-License-Identifier: GPL-3.0-or-later
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texture BackBufferTex : COLOR;
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sampler BackBuffer { Texture = BackBufferTex; };
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uniform float Amount <
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ui_type = "slider";
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ui_label = "Amount";
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ui_min = 0.0; ui_max = 3.0; ui_step = 0.01;
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> = 0.6;
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void VS_PostProcess(in uint id : SV_VertexID, out float4 pos : SV_Position, out float2 uv : TEXCOORD)
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{
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uv = float2(float(id & 2), float((id & 1) << 1));
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pos = float4(uv * float2(2.0, -2.0) + float2(-1.0, 1.0), 0.0, 1.0);
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}
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float4 PS_Sharpen(float4 pos : SV_Position, float2 uv : TEXCOORD) : SV_Target
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{
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float2 texel = float2(BUFFER_RCP_WIDTH, BUFFER_RCP_HEIGHT);
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float3 centre = tex2D(BackBuffer, uv).rgb;
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float3 blur = tex2D(BackBuffer, uv + float2(-texel.x, 0.0)).rgb;
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blur += tex2D(BackBuffer, uv + float2(texel.x, 0.0)).rgb;
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blur += tex2D(BackBuffer, uv + float2(0.0, -texel.y)).rgb;
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blur += tex2D(BackBuffer, uv + float2(0.0, texel.y)).rgb;
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blur *= 0.25;
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return float4(centre + (centre - blur) * Amount, 1.0);
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}
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technique Sharpen <
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ui_label = "Sharpen";
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ui_tooltip = "Unsharp mask that brings back edge detail lost to scaling. Most useful after upscaling a low internal resolution.";
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>
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{
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pass
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{
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VertexShader = VS_PostProcess;
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PixelShader = PS_Sharpen;
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}
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}
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