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https://github.com/italicsjenga/slang-shaders.git
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255 lines
8.2 KiB
Plaintext
255 lines
8.2 KiB
Plaintext
#version 450
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/*
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Interlacing
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Copyright (C) 2020 guest(r) - guest.r@gmail.com
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "../base/common/globals-and-screen-scale-params.inc"
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layout(push_constant) uniform Push
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{
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vec4 OriginalSize;
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vec4 OutputSize;
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uint FrameCount;
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// float GAMMA_INPUT;
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// float inter;
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// float interm;
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// float inters;
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// float iscan;
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// float intres;
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// float downsample_level;
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// float prescalex;
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} params;
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/*
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layout(std140, set = 0, binding = 0) uniform UBO
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{
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vec4 SourceSize;
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mat4 MVP;
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} global;
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// #pragma parameter GAMMA_INPUT "Gamma Input" 2.4 1.0 5.0 0.05
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*/
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/*
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// #pragma parameter bogus_interlacing "[ INTERLACING OPTIONS ]: " 0.0 0.0 0.0 1.0
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// #pragma parameter inter " Interlace Trigger Resolution :" 350.0 0.0 800.0 25.0
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// #define inter params.inter // interlace resolution
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// #pragma parameter interm " Interlace Mode: OFF, Normal 1-3, Interpolation 4-5" 1.0 0.0 5.0 1.0
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*/
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#define interm HSM_INTERLACE_MODE // interlace mode
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/*
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// #pragma parameter inters " Interlacing Effect Smoothness" 0.0 0.0 0.5 0.05 // Joint parameter with main pass, values must match
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*/
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#define inters HSM_INTERLACE_EFFECT_SMOOTHNESS_INTERS // interlacing effect smoothing
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/*
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// #pragma parameter iscan " Interlacing Scanline Effect" 0.20 0.0 1.0 0.05
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*/
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#define iscan HSM_INTERLACE_SCANLINE_EFFECT // interlacing effect scanlining
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/*
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// #pragma parameter intres " Internal Resolution Y: 224p/240p, 1.5...y-dowsample" 0.0 0.0 6.0 0.5 // Joint parameter with main pass, values must match
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// #define intres params.intres // interlace resolution
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// #pragma parameter downsample_levelx " Downsampling-X (High-res content, pre-scalers)" 0.0 0.0 2.0 0.25
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*/
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#define downsample_level HSM_DOWNSAMPLE_BLUR_SCANLINE_DIR // downsample level
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// #pragma parameter downsample_levely " Downsampling-Y (High-res content, pre-scalers)" 0.0 0.0 2.0 0.25
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// #pragma parameter prescalex " Prescale-X Factor (for xBR...pre-shader)" 1.0 1.0 4.0 1.0 // Joint parameter with main pass, values must match
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// #define prescalex params.prescalex // prescale-x factor
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#pragma parameter iscans " Interlacing (Scanline) Saturation" 0.25 0 1 0.05
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#define iscans global.iscans
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bool use_vert_scanlines_bool = false;
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#pragma stage vertex
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layout(location = 0) in vec4 Position;
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layout(location = 1) in vec2 TexCoord;
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layout(location = 0) out vec2 vTexCoord;
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void main()
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{
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gl_Position = global.MVP * Position;
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vTexCoord = TexCoord * 1.0001;
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}
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#pragma stage fragment
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layout(location = 0) in vec2 vTexCoord;
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layout(location = 0) out vec4 FragColor;
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layout(set = 0, binding = 1) uniform sampler2D InfoCachePass;
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layout(set = 0, binding = 2) uniform sampler2D InfoCachePassFeedback;
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layout(set = 0, binding = 3) uniform sampler2D PrePass;
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layout(set = 0, binding = 4) uniform sampler2D NegativeCropAddedPass;
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#define COMPAT_TEXTURE(c,d) texture(c,d)
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vec3 plant (vec3 tar, float r)
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{
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float t = max(max(tar.r,tar.g),tar.b) + 0.00001;
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return tar * r / t;
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}
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// TODO need to adjust downsample
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vec3 fetch_pixel(vec2 coord)
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{
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vec2 prescale_tex_size = textureSize(NegativeCropAddedPass, 0);
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vec2 dx = vec2(1 / prescale_tex_size.x, 0.0) * HSM_DOWNSAMPLE_BLUR_SCANLINE_DIR;
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vec2 dy = vec2(0.0, 1 / prescale_tex_size.y) * HSM_DOWNSAMPLE_BLUR_OPPOSITE_DIR;
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if (use_vert_scanlines_bool)
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{
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dx = vec2(1 / prescale_tex_size.x, 0.0) * HSM_DOWNSAMPLE_BLUR_OPPOSITE_DIR;
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dy = vec2(0.0, 1 / prescale_tex_size.y) * HSM_DOWNSAMPLE_BLUR_SCANLINE_DIR;
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}
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vec2 d1 = dx + dy;
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vec2 d2 = dx - dy;
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float sum = 15.0;
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vec3 result = 3.0*COMPAT_TEXTURE(PrePass, coord ).rgb +
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2.0*COMPAT_TEXTURE(PrePass, coord + dx).rgb +
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2.0*COMPAT_TEXTURE(PrePass, coord - dx).rgb +
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2.0*COMPAT_TEXTURE(PrePass, coord + dy).rgb +
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2.0*COMPAT_TEXTURE(PrePass, coord - dy).rgb +
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COMPAT_TEXTURE(PrePass, coord + d1).rgb +
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COMPAT_TEXTURE(PrePass, coord - d1).rgb +
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COMPAT_TEXTURE(PrePass, coord + d2).rgb +
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COMPAT_TEXTURE(PrePass, coord - d2).rgb;
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return result/sum;
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}
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void main()
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{
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/* HSM Removed
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vec3 c1 = COMPAT_TEXTURE(PrePass, vTexCoord).rgb;
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vec3 c2 = COMPAT_TEXTURE(PrePass, vTexCoord + vec2(0.0, params.OriginalSize.w)).rgb;
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*/
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vec3 c1 = vec3(0);
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vec3 c2 = vec3(0);
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// HSM Added
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HSM_UpdateGlobalScreenValuesFromCache(InfoCachePass, InfoCachePassFeedback, vTexCoord);
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use_vert_scanlines_bool = (USE_VERTICAL_SCANLINES > 0.5);
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// HSM Added
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if (HSM_ROTATE_CORE_IMAGE > 0.5)
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{
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use_vert_scanlines_bool = !use_vert_scanlines_bool;
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}
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vec2 rotated_derezed_size = HSM_GetRotatedDerezedSize();
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float derezed_opposite_dir_res = use_vert_scanlines_bool ? rotated_derezed_size.x : rotated_derezed_size.y;
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float derezed_scaled_opposite_dir_res = derezed_opposite_dir_res * HSM_CORE_RES_SAMPLING_MULT_OPPOSITE_DIR;
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float orig_opposite_dir_res = use_vert_scanlines_bool ? ROTATED_CORE_PREPPED_SIZE.x : ROTATED_CORE_PREPPED_SIZE.y;
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float scaled_opposite_dir_res = orig_opposite_dir_res * HSM_CORE_RES_SAMPLING_MULT_OPPOSITE_DIR;
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float orig_scanline_dir_res = use_vert_scanlines_bool ? ROTATED_CORE_PREPPED_SIZE.y : ROTATED_CORE_PREPPED_SIZE.x;
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float tex_coord_scan_dir = use_vert_scanlines_bool ? vTexCoord.x : vTexCoord.y;
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vec2 downsample_offset = vec2(0, 1 / orig_opposite_dir_res / NEGATIVE_CROP_EXPAND_MULTIPLIER );
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if (use_vert_scanlines_bool)
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downsample_offset = vec2(1 / orig_opposite_dir_res / NEGATIVE_CROP_EXPAND_MULTIPLIER, 0 );
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if ((HSM_DOWNSAMPLE_BLUR_SCANLINE_DIR + HSM_DOWNSAMPLE_BLUR_OPPOSITE_DIR) > 0.0)
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{
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c1 = fetch_pixel(vTexCoord);
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c2 = fetch_pixel(vTexCoord + downsample_offset);
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}
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else
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{
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c1 = COMPAT_TEXTURE(PrePass, vTexCoord).rgb;
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c2 = COMPAT_TEXTURE(PrePass, vTexCoord + downsample_offset).rgb;
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}
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vec3 c = c1;
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float intera = 1.0;
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float gamma_in = clamp(GAMMA_INPUT, 1.0, 5.0);
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float m1 = max(max(c1.r,c1.g),c1.b);
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float m2 = max(max(c2.r,c2.g),c2.b);
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vec3 df = abs(c1-c2);
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float d = max(max(df.r,df.g),df.b);
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if (interm == 2.0) d = mix(0.1*d,10.0*d, step(m1/(m2+0.0001),m2/(m1+0.0001)));
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float r = m1;
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/* HSM Removed
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float yres_div = 1.0; if (intres > 1.25) yres_div = intres;
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if (inter < params.OriginalSize.y/yres_div && interm > 0.5 && intres != 1.0 && intres != 0.5)
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*/
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// HSM Added
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if (HSM_INTERLACE_TRIGGER_RES <= derezed_scaled_opposite_dir_res && interm > 0.5)
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{
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intera = 0.25;
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/* HSM Removed
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float line_no = clamp(floor(mod(params.OriginalSize.y*vTexCoord.y, 2.0)), 0.0, 1.0);
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*/
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// HSM Added
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float line_no = clamp( floor( mod( orig_opposite_dir_res * tex_coord_scan_dir, 2.0 ) ), 0.0, 1.0 );
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float frame_no = clamp(floor(mod(float(params.FrameCount),2.0)), 0.0, 1.0);
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float ii = abs(line_no-frame_no);
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if (interm < 3.5)
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{
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c2 = plant(mix(c2, c2*c2, iscans), max(max(c2.r,c2.g),c2.b));
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r = clamp(max(m1*ii, (1.0-iscan)*min(m1,m2)), 0.0, 1.0);
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c = plant( mix(mix(c1,c2, min(mix(m1, 1.0-m2, min(m1,1.0-m1))/(d+0.00001),1.0)), c1, ii), r);
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if (interm == 3.0) c = (1.0-0.5*iscan)*mix(c2, c1, ii);
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intera = 0.0;
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}
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if (interm == 4.0) { c = plant(mix(c, c*c, 0.5*iscans), max(max(c.r,c.g),c.b)); intera = 0.45; }
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if (interm == 5.0) { c = mix(c2, c1, 0.5); c = plant(mix(c, c*c, 0.5*iscans), max(max(c.r,c.g),c.b)); intera = 0.45; }
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}
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c = pow(c, vec3(gamma_in));
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// if (USE_VERTICAL_SCANLINES > 0.5)
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// intera = 1;
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if (vTexCoord.x > 0.5) gamma_in = intera; else gamma_in = 1.0/gamma_in;
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FragColor = vec4(c, gamma_in);
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} |