mirror of
https://github.com/RetroDECK/Duckstation.git
synced 2025-01-23 16:45:37 +00:00
bf1b023f12
- A new port of crt-royale. More faithful to original. It uses the same mask textures. - The only thing not ported is the original geometry pass. It was replaced by geom curvature code. - It's configured for 1080p displays. 4k displays need to adjust param mask_triad_size_desired from 3.0 to 4.0. OBS: It's up to you decide if the two versions should be maintained.
96 lines
4.2 KiB
HLSL
96 lines
4.2 KiB
HLSL
///////////////////////////////// MIT LICENSE ////////////////////////////////
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// Copyright (C) 2014 TroggleMonkey
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to
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// deal in the Software without restriction, including without limitation the
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// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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// sell copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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// IN THE SOFTWARE.
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///////////////////////////// SETTINGS MANAGEMENT ////////////////////////////
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// PASS SETTINGS:
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// gamma-management.h needs to know what kind of pipeline we're using and
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// what pass this is in that pipeline. This will become obsolete if/when we
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// can #define things like this in the .cgp preset file.
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//#define GAMMA_ENCODE_EVERY_FBO
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//#define FIRST_PASS
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//#define LAST_PASS
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//#define SIMULATE_CRT_ON_LCD
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//#define SIMULATE_GBA_ON_LCD
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//#define SIMULATE_LCD_ON_CRT
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//#define SIMULATE_GBA_ON_CRT
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////////////////////////////////// INCLUDES //////////////////////////////////
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#include "../include/gamma-management.fxh"
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#include "../include/blur-functions.fxh"
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///////////////////////////////// STRUCTURES /////////////////////////////////
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struct out_vertex_p3
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{
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float2 blur_dxdy : TEXCOORD1;
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};
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//////////////////////////////// VERTEX SHADER ///////////////////////////////
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// Vertex shader generating a triangle covering the entire screen
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void VS_Blur9Fast_Vertical(in uint id : SV_VertexID, out float4 position : SV_Position, out float2 texcoord : TEXCOORD, out out_vertex_p3 OUT)
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{
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texcoord.x = (id == 2) ? 2.0 : 0.0;
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texcoord.y = (id == 1) ? 2.0 : 0.0;
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position = float4(texcoord * float2(2.0, -2.0) + float2(-1.0, 1.0), 0.0, 1.0);
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/*
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float2 texture_size = 1.0/NormalizedNativePixelSize;
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float2 output_size = (ViewportSize*BufferToViewportRatio);
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float2 video_size = 1.0/NormalizedNativePixelSize;
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*/
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// float2 texture_size = float2(320.0, 240.0);
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float2 texture_size = BLUR9FAST_VERTICAL_texture_size;
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float2 output_size = VIEWPORT_SIZE;
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// float2 output_size = VIEWPORT_SIZE/4.0;
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// float2 output_size = VIEWPORT_SIZE*NormalizedNativePixelSize/float2(320.0, 240.0);
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// float2 output_size = 1.0/NormalizedNativePixelSize;
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// Get the uv sample distance between output pixels. Blurs are not generic
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// Gaussian resizers, and correct blurs require:
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// 1.) IN.output_size == IN.video_size * 2^m, where m is an integer <= 0.
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// 2.) mipmap_inputN = "true" for this pass in .cgp preset if m != 0
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// 3.) filter_linearN = "true" except for 1x scale nearest neighbor blurs
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// Gaussian resizers would upsize using the distance between input texels
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// (not output pixels), but we avoid this and consistently blur at the
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// destination size. Otherwise, combining statically calculated weights
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// with bilinear sample exploitation would result in terrible artifacts.
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const float2 dxdy_scale = video_size/output_size;
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const float2 dxdy = dxdy_scale/texture_size;
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// This blur is vertical-only, so zero out the horizontal offset:
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OUT.blur_dxdy = float2(0.0, dxdy.y);
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}
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/////////////////////////////// FRAGMENT SHADER //////////////////////////////
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float4 PS_Blur9Fast_Vertical(float4 vpos: SV_Position, float2 vTexCoord : TEXCOORD, in out_vertex_p3 VAR) : SV_Target
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{
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float3 color = tex2Dblur9fast(BLOOM_APPROX, vTexCoord, VAR.blur_dxdy);
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// Encode and output the blurred image:
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return encode_output(float4(color, 1.0));
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}
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