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傲世三国之三分天下-高清HD加强版

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sma11case
2026-01-03 12:00:01 +08:00
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Shaders/xbrz/xbrz-freescale-multipass.glsl Normal file
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/*
Hyllian's xBR-vertex code and texel mapping
Copyright (C) 2011/2016 Hyllian - sergiogdb@gmail.com
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
// This shader also uses code and/or concepts from xBRZ as it appears
// in the Desmume source code. The license for which is as follows:
// ****************************************************************************
// * This file is part of the HqMAME project. It is distributed under *
// * GNU General Public License: http://www.gnu.org/licenses/gpl-3.0 *
// * Copyright (C) Zenju (zenju AT gmx DOT de) - All Rights Reserved *
// * *
// * Additionally and as a special exception, the author gives permission *
// * to link the code of this program with the MAME library (or with modified *
// * versions of MAME that use the same license as MAME), and distribute *
// * linked combinations including the two. You must obey the GNU General *
// * Public License in all respects for all of the code used other than MAME. *
// * If you modify this file, you may extend this exception to your version *
// * of the file, but you are not obligated to do so. If you do not wish to *
// * do so, delete this exception statement from your version. *
// ****************************************************************************
#if defined(VERTEX)
#if __VERSION__ >= 130
#define COMPAT_VARYING out
#define COMPAT_ATTRIBUTE in
#define COMPAT_TEXTURE texture
#else
#define COMPAT_VARYING varying
#define COMPAT_ATTRIBUTE attribute
#define COMPAT_TEXTURE texture2D
#endif
#ifdef GL_ES
#define COMPAT_PRECISION mediump
#else
#define COMPAT_PRECISION
#endif
COMPAT_ATTRIBUTE vec4 VertexCoord;
COMPAT_ATTRIBUTE vec4 COLOR;
COMPAT_ATTRIBUTE vec4 TexCoord;
COMPAT_VARYING vec4 COL0;
COMPAT_VARYING vec4 TEX0;
vec4 _oPosition1;
uniform mat4 MVPMatrix;
uniform COMPAT_PRECISION int FrameDirection;
uniform COMPAT_PRECISION int FrameCount;
uniform COMPAT_PRECISION vec2 OutputSize;
uniform COMPAT_PRECISION vec2 TextureSize;
uniform COMPAT_PRECISION vec2 InputSize;
// compatibility #defines
#define vTexCoord TEX0.xy
#define SourceSize vec4(TextureSize, 1.0 / TextureSize) //either TextureSize or InputSize
#define OutSize vec4(OutputSize, 1.0 / OutputSize)
void main()
{
gl_Position = MVPMatrix * VertexCoord;
TEX0.xy = TexCoord.xy * 1.0001;
}
#elif defined(FRAGMENT)
#ifdef GL_ES
#ifdef GL_FRAGMENT_PRECISION_HIGH
precision highp float;
#else
precision mediump float;
#endif
#define COMPAT_PRECISION mediump
#else
#define COMPAT_PRECISION
#endif
#if __VERSION__ >= 130
#define COMPAT_VARYING in
#define COMPAT_TEXTURE texture
out COMPAT_PRECISION vec4 FragColor;
#else
#define COMPAT_VARYING varying
#define FragColor gl_FragColor
#define COMPAT_TEXTURE texture2D
#endif
uniform COMPAT_PRECISION int FrameDirection;
uniform COMPAT_PRECISION int FrameCount;
uniform COMPAT_PRECISION vec2 OutputSize;
uniform COMPAT_PRECISION vec2 TextureSize;
uniform COMPAT_PRECISION vec2 InputSize;
uniform sampler2D Texture;
COMPAT_VARYING vec4 TEX0;
// in variables go here as COMPAT_VARYING whatever
// compatibility #defines
#define Source Texture
#define vTexCoord TEX0.xy
#define SourceSize vec4(TextureSize, 1.0 / TextureSize) //either TextureSize or InputSize
#define OutSize vec4(OutputSize, 1.0 / OutputSize)
#define BLEND_NONE 0
#define BLEND_NORMAL 1
#define BLEND_DOMINANT 2
#define LUMINANCE_WEIGHT 1.0
#define EQUAL_COLOR_TOLERANCE 30.0/255.0
#define STEEP_DIRECTION_THRESHOLD 2.2
#define DOMINANT_DIRECTION_THRESHOLD 3.6
float DistYCbCr(vec3 pixA, vec3 pixB)
{
const vec3 w = vec3(0.2627, 0.6780, 0.0593);
const float scaleB = 0.5 / (1.0 - w.b);
const float scaleR = 0.5 / (1.0 - w.r);
vec3 diff = pixA - pixB;
float Y = dot(diff.rgb, w);
float Cb = scaleB * (diff.b - Y);
float Cr = scaleR * (diff.r - Y);
return sqrt(((LUMINANCE_WEIGHT * Y) * (LUMINANCE_WEIGHT * Y)) + (Cb * Cb) + (Cr * Cr));
}
bool IsPixEqual(const vec3 pixA, const vec3 pixB)
{
return (DistYCbCr(pixA, pixB) < EQUAL_COLOR_TOLERANCE);
}
float get_left_ratio(vec2 center, vec2 origin, vec2 direction, vec2 scale)
{
vec2 P0 = center - origin;
vec2 proj = direction * (dot(P0, direction) / dot(direction, direction));
vec2 distv = P0 - proj;
vec2 orth = vec2(-direction.y, direction.x);
float side = sign(dot(P0, orth));
float v = side * length(distv * scale);
// return step(0, v);
return smoothstep(-sqrt(2.0)/2.0, sqrt(2.0)/2.0, v);
}
#define eq(a,b) (a == b)
#define neq(a,b) (a != b)
#define P(x,y) COMPAT_TEXTURE(Source, coord + SourceSize.zw * vec2(x, y)).rgb
void main()
{
//---------------------------------------
// Input Pixel Mapping: -|x|x|x|-
// x|A|B|C|x
// x|D|E|F|x
// x|G|H|I|x
// -|x|x|x|-
vec2 pos = fract(vTexCoord * SourceSize.xy) - vec2(0.5, 0.5);
vec2 coord = vTexCoord - pos * SourceSize.zw;
vec3 A = P(-1.,-1.);
vec3 B = P( 0.,-1.);
vec3 C = P( 1.,-1.);
vec3 D = P(-1., 0.);
vec3 E = P( 0., 0.);
vec3 F = P( 1., 0.);
vec3 G = P(-1., 1.);
vec3 H = P( 0., 1.);
vec3 I = P( 1., 1.);
// blendResult Mapping: x|y|
// w|z|
ivec4 blendResult = ivec4(BLEND_NONE,BLEND_NONE,BLEND_NONE,BLEND_NONE);
// Preprocess corners
// Pixel Tap Mapping: -|-|-|-|-
// -|-|B|C|-
// -|D|E|F|x
// -|G|H|I|x
// -|-|x|x|-
if (!((eq(E,F) && eq(H,I)) || (eq(E,H) && eq(F,I))))
{
float dist_H_F = DistYCbCr(G, E) + DistYCbCr(E, C) + DistYCbCr(P(0.,2.), I) + DistYCbCr(I, P(2.,0.)) + (4.0 * DistYCbCr(H, F));
float dist_E_I = DistYCbCr(D, H) + DistYCbCr(H, P(1.,2.)) + DistYCbCr(B, F) + DistYCbCr(F, P(2.,1.)) + (4.0 * DistYCbCr(E, I));
bool dominantGradient = (DOMINANT_DIRECTION_THRESHOLD * dist_H_F) < dist_E_I;
blendResult.z = ((dist_H_F < dist_E_I) && neq(E,F) && neq(E,H)) ? ((dominantGradient) ? BLEND_DOMINANT : BLEND_NORMAL) : BLEND_NONE;
}
// Pixel Tap Mapping: -|-|-|-|-
// -|A|B|-|-
// x|D|E|F|-
// x|G|H|I|-
// -|x|x|-|-
if (!((eq(D,E) && eq(G,H)) || (eq(D,G) && eq(E,H))))
{
float dist_G_E = DistYCbCr(P(-2.,1.) , D) + DistYCbCr(D, B) + DistYCbCr(P(-1.,2.), H) + DistYCbCr(H, F) + (4.0 * DistYCbCr(G, E));
float dist_D_H = DistYCbCr(P(-2.,0.) , G) + DistYCbCr(G, P(0.,2.)) + DistYCbCr(A, E) + DistYCbCr(E, I) + (4.0 * DistYCbCr(D, H));
bool dominantGradient = (DOMINANT_DIRECTION_THRESHOLD * dist_D_H) < dist_G_E;
blendResult.w = ((dist_G_E > dist_D_H) && neq(E,D) && neq(E,H)) ? ((dominantGradient) ? BLEND_DOMINANT : BLEND_NORMAL) : BLEND_NONE;
}
// Pixel Tap Mapping: -|-|x|x|-
// -|A|B|C|x
// -|D|E|F|x
// -|-|H|I|-
// -|-|-|-|-
if (!((eq(B,C) && eq(E,F)) || (eq(B,E) && eq(C,F))))
{
float dist_E_C = DistYCbCr(D, B) + DistYCbCr(B, P(1,-2)) + DistYCbCr(H, F) + DistYCbCr(F, P(2.,-1.)) + (4.0 * DistYCbCr(E, C));
float dist_B_F = DistYCbCr(A, E) + DistYCbCr(E, I) + DistYCbCr(P(0.,-2.), C) + DistYCbCr(C, P(2.,0.)) + (4.0 * DistYCbCr(B, F));
bool dominantGradient = (DOMINANT_DIRECTION_THRESHOLD * dist_B_F) < dist_E_C;
blendResult.y = ((dist_E_C > dist_B_F) && neq(E,B) && neq(E,F)) ? ((dominantGradient) ? BLEND_DOMINANT : BLEND_NORMAL) : BLEND_NONE;
}
// Pixel Tap Mapping: -|x|x|-|-
// x|A|B|C|-
// x|D|E|F|-
// -|G|H|-|-
// -|-|-|-|-
if (!((eq(A,B) && eq(D,E)) || (eq(A,D) && eq(B,E))))
{
float dist_D_B = DistYCbCr(P(-2.,0.), A) + DistYCbCr(A, P(0.,-2.)) + DistYCbCr(G, E) + DistYCbCr(E, C) + (4.0 * DistYCbCr(D, B));
float dist_A_E = DistYCbCr(P(-2.,-1.), D) + DistYCbCr(D, H) + DistYCbCr(P(-1.,-2.), B) + DistYCbCr(B, F) + (4.0 * DistYCbCr(A, E));
bool dominantGradient = (DOMINANT_DIRECTION_THRESHOLD * dist_D_B) < dist_A_E;
blendResult.x = ((dist_D_B < dist_A_E) && neq(E,D) && neq(E,B)) ? ((dominantGradient) ? BLEND_DOMINANT : BLEND_NORMAL) : BLEND_NONE;
}
FragColor = vec4(blendResult);
// Pixel Tap Mapping: -|-|-|-|-
// -|-|B|C|-
// -|D|E|F|x
// -|G|H|I|x
// -|-|x|x|-
if(blendResult.z == BLEND_DOMINANT || (blendResult.z == BLEND_NORMAL &&
!((blendResult.y != BLEND_NONE && !IsPixEqual(E, G)) || (blendResult.w != BLEND_NONE && !IsPixEqual(E, C)) ||
(IsPixEqual(G, H) && IsPixEqual(H, I) && IsPixEqual(I, F) && IsPixEqual(F, C) && !IsPixEqual(E, I)))))
{
FragColor.z += 4.0;
float dist_F_G = DistYCbCr(F, G);
float dist_H_C = DistYCbCr(H, C);
if((STEEP_DIRECTION_THRESHOLD * dist_F_G <= dist_H_C) && neq(E,G) && neq(D,G))
FragColor.z += 16.0;
if((STEEP_DIRECTION_THRESHOLD * dist_H_C <= dist_F_G) && neq(E,C) && neq(B,C))
FragColor.z += 64.0;
}
// Pixel Tap Mapping: -|-|-|-|-
// -|A|B|-|-
// x|D|E|F|-
// x|G|H|I|-
// -|x|x|-|-
if(blendResult.w == BLEND_DOMINANT || (blendResult.w == BLEND_NORMAL &&
!((blendResult.z != BLEND_NONE && !IsPixEqual(E, A)) || (blendResult.x != BLEND_NONE && !IsPixEqual(E, I)) ||
(IsPixEqual(A, D) && IsPixEqual(D, G) && IsPixEqual(G, H) && IsPixEqual(H, I) && !IsPixEqual(E, G)))))
{
FragColor.w += 4.0;
float dist_H_A = DistYCbCr(H, A);
float dist_D_I = DistYCbCr(D, I);
if((STEEP_DIRECTION_THRESHOLD * dist_H_A <= dist_D_I) && neq(E,A) && neq(B,A))
FragColor.w += 16.0;
if((STEEP_DIRECTION_THRESHOLD * dist_D_I <= dist_H_A) && neq(E,I) && neq(F,I))
FragColor.w += 64.0;
}
// Pixel Tap Mapping: -|-|x|x|-
// -|A|B|C|x
// -|D|E|F|x
// -|-|H|I|-
// -|-|-|-|-
if(blendResult.y == BLEND_DOMINANT || (blendResult.y == BLEND_NORMAL &&
!((blendResult.x != BLEND_NONE && !IsPixEqual(E, I)) || (blendResult.z != BLEND_NONE && !IsPixEqual(E, A)) ||
(IsPixEqual(I, F) && IsPixEqual(F, C) && IsPixEqual(C, B) && IsPixEqual(B, A) && !IsPixEqual(E, C)))))
{
FragColor.y += 4.0;
float dist_B_I = DistYCbCr(B, I);
float dist_F_A = DistYCbCr(F, A);
if((STEEP_DIRECTION_THRESHOLD * dist_B_I <= dist_F_A) && neq(E,I) && neq(H,I))
FragColor.y += 16.0;
if((STEEP_DIRECTION_THRESHOLD * dist_F_A <= dist_B_I) && neq(E,A) && neq(D,A))
FragColor.y += 64.0;
}
// Pixel Tap Mapping: -|x|x|-|-
// x|A|B|C|-
// x|D|E|F|-
// -|G|H|-|-
// -|-|-|-|-
if(blendResult.x == BLEND_DOMINANT || (blendResult.x == BLEND_NORMAL &&
!((blendResult.w != BLEND_NONE && !IsPixEqual(E, C)) || (blendResult.y != BLEND_NONE && !IsPixEqual(E, G)) ||
(IsPixEqual(C, B) && IsPixEqual(B, A) && IsPixEqual(A, D) && IsPixEqual(D, G) && !IsPixEqual(E, A)))))
{
FragColor.x += 4.0;
float dist_D_C = DistYCbCr(D, C);
float dist_B_G = DistYCbCr(B, G);
if((STEEP_DIRECTION_THRESHOLD * dist_D_C <= dist_B_G) && neq(E,C) && neq(F,C))
FragColor.x += 16.0;
if((STEEP_DIRECTION_THRESHOLD * dist_B_G <= dist_D_C) && neq(E,G) && neq(H,G))
FragColor.x += 64.0;
}
FragColor /= 255.0;
}
#endif

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/*
Hyllian's xBR-vertex code and texel mapping
Copyright (C) 2011/2016 Hyllian - sergiogdb@gmail.com
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
// This shader also uses code and/or concepts from xBRZ as it appears
// in the Desmume source code. The license for which is as follows:
// ****************************************************************************
// * This file is part of the HqMAME project. It is distributed under *
// * GNU General Public License: http://www.gnu.org/licenses/gpl-3.0 *
// * Copyright (C) Zenju (zenju AT gmx DOT de) - All Rights Reserved *
// * *
// * Additionally and as a special exception, the author gives permission *
// * to link the code of this program with the MAME library (or with modified *
// * versions of MAME that use the same license as MAME), and distribute *
// * linked combinations including the two. You must obey the GNU General *
// * Public License in all respects for all of the code used other than MAME. *
// * If you modify this file, you may extend this exception to your version *
// * of the file, but you are not obligated to do so. If you do not wish to *
// * do so, delete this exception statement from your version. *
// ****************************************************************************
#if defined(VERTEX)
#if __VERSION__ >= 130
#define COMPAT_VARYING out
#define COMPAT_ATTRIBUTE in
#define COMPAT_TEXTURE texture
#else
#define COMPAT_VARYING varying
#define COMPAT_ATTRIBUTE attribute
#define COMPAT_TEXTURE texture2D
#endif
#ifdef GL_ES
#define COMPAT_PRECISION mediump
#else
#define COMPAT_PRECISION
#endif
COMPAT_ATTRIBUTE vec4 VertexCoord;
COMPAT_ATTRIBUTE vec4 COLOR;
COMPAT_ATTRIBUTE vec4 TexCoord;
COMPAT_VARYING vec4 COL0;
COMPAT_VARYING vec4 TEX0;
vec4 _oPosition1;
uniform mat4 MVPMatrix;
uniform COMPAT_PRECISION int FrameDirection;
uniform COMPAT_PRECISION int FrameCount;
uniform COMPAT_PRECISION vec2 OutputSize;
uniform COMPAT_PRECISION vec2 TextureSize;
uniform COMPAT_PRECISION vec2 InputSize;
// compatibility #defines
#define vTexCoord TEX0.xy
#define SourceSize vec4(TextureSize, 1.0 / TextureSize) //either TextureSize or InputSize
#define OutSize vec4(OutputSize, 1.0 / OutputSize)
void main()
{
gl_Position = MVPMatrix * VertexCoord;
TEX0.xy = TexCoord.xy * 1.0001;
}
#elif defined(FRAGMENT)
#ifdef GL_ES
#ifdef GL_FRAGMENT_PRECISION_HIGH
precision highp float;
#else
precision mediump float;
#endif
#define COMPAT_PRECISION mediump
#else
#define COMPAT_PRECISION
#endif
#if __VERSION__ >= 130
#define COMPAT_VARYING in
#define COMPAT_TEXTURE texture
out COMPAT_PRECISION vec4 FragColor;
#else
#define COMPAT_VARYING varying
#define FragColor gl_FragColor
#define COMPAT_TEXTURE texture2D
#endif
uniform COMPAT_PRECISION int FrameDirection;
uniform COMPAT_PRECISION int FrameCount;
uniform COMPAT_PRECISION vec2 OutputSize;
uniform COMPAT_PRECISION vec2 TextureSize;
uniform COMPAT_PRECISION vec2 InputSize;
uniform sampler2D Texture;
uniform sampler2D PassPrev2Texture;
uniform COMPAT_PRECISION vec2 PassPrev2TextureSize;
COMPAT_VARYING vec4 TEX0;
// compatibility #defines
#define Source Texture
#define vTexCoord TEX0.xy
#define SourceSize vec4(TextureSize, 1.0 / TextureSize) //either TextureSize or InputSize
#define OutSize vec4(OutputSize, 1.0 / OutputSize)
#define OriginalSize vec4(PassPrev2TextureSize, 1.0 / PassPrev2TextureSize)
#define BLEND_NONE 0.
#define BLEND_NORMAL 1.
#define BLEND_DOMINANT 2.
#define LUMINANCE_WEIGHT 1.0
#define EQUAL_COLOR_TOLERANCE 30.0/255.0
#define STEEP_DIRECTION_THRESHOLD 2.2
#define DOMINANT_DIRECTION_THRESHOLD 3.6
float DistYCbCr(vec3 pixA, vec3 pixB)
{
const vec3 w = vec3(0.2627, 0.6780, 0.0593);
const float scaleB = 0.5 / (1.0 - w.b);
const float scaleR = 0.5 / (1.0 - w.r);
vec3 diff = pixA - pixB;
float Y = dot(diff.rgb, w);
float Cb = scaleB * (diff.b - Y);
float Cr = scaleR * (diff.r - Y);
return sqrt(((LUMINANCE_WEIGHT * Y) * (LUMINANCE_WEIGHT * Y)) + (Cb * Cb) + (Cr * Cr));
}
bool IsPixEqual(const vec3 pixA, const vec3 pixB)
{
return (DistYCbCr(pixA, pixB) < EQUAL_COLOR_TOLERANCE);
}
float get_left_ratio(vec2 center, vec2 origin, vec2 direction, vec2 scale)
{
vec2 P0 = center - origin;
vec2 proj = direction * (dot(P0, direction) / dot(direction, direction));
vec2 distv = P0 - proj;
vec2 orth = vec2(-direction.y, direction.x);
float side = sign(dot(P0, orth));
float v = side * length(distv * scale);
// return step(0, v);
return smoothstep(-sqrt(2.0)/2.0, sqrt(2.0)/2.0, v);
}
#define eq(a,b) (a == b)
#define neq(a,b) (a != b)
#define P(x,y) COMPAT_TEXTURE(PassPrev2Texture, coord + OriginalSize.zw * vec2(x, y)).rgb
void main()
{
//---------------------------------------
// Input Pixel Mapping: -|B|-
// D|E|F
// -|H|-
vec2 scale = OutputSize.xy * OriginalSize.zw;
vec2 pos = fract(vTexCoord * OriginalSize.xy) - vec2(0.5, 0.5);
vec2 coord = vTexCoord - pos * OriginalSize.zw;
vec3 B = P( 0.,-1.);
vec3 D = P(-1., 0.);
vec3 E = P( 0., 0.);
vec3 F = P( 1., 0.);
vec3 H = P( 0., 1.);
vec4 info = floor(COMPAT_TEXTURE(Source, coord) * 255.0 + 0.5);
// info Mapping: x|y|
// w|z|
vec4 blendResult = floor(mod(info, 4.0));
vec4 doLineBlend = floor(mod(info / 4.0, 4.0));
vec4 haveShallowLine = floor(mod(info / 16.0, 4.0));
vec4 haveSteepLine = floor(mod(info / 64.0, 4.0));
vec3 res = E;
// Pixel Tap Mapping: -|-|-
// -|E|F
// -|H|-
if(blendResult.z > BLEND_NONE)
{
vec2 origin = vec2(0.0, 1.0 / sqrt(2.0));
vec2 direction = vec2(1.0, -1.0);
if(doLineBlend.z > 0.0)
{
origin = haveShallowLine.z > 0.0? vec2(0.0, 0.25) : vec2(0.0, 0.5);
direction.x += haveShallowLine.z;
direction.y -= haveSteepLine.z;
}
vec3 blendPix = mix(H,F, step(DistYCbCr(E, F), DistYCbCr(E, H)));
res = mix(res, blendPix, get_left_ratio(pos, origin, direction, scale));
}
// Pixel Tap Mapping: -|-|-
// D|E|-
// -|H|-
if(blendResult.w > BLEND_NONE)
{
vec2 origin = vec2(-1.0 / sqrt(2.0), 0.0);
vec2 direction = vec2(1.0, 1.0);
if(doLineBlend.w > 0.0)
{
origin = haveShallowLine.w > 0.0? vec2(-0.25, 0.0) : vec2(-0.5, 0.0);
direction.y += haveShallowLine.w;
direction.x += haveSteepLine.w;
}
vec3 blendPix = mix(H,D, step(DistYCbCr(E, D), DistYCbCr(E, H)));
res = mix(res, blendPix, get_left_ratio(pos, origin, direction, scale));
}
// Pixel Tap Mapping: -|B|-
// -|E|F
// -|-|-
if(blendResult.y > BLEND_NONE)
{
vec2 origin = vec2(1.0 / sqrt(2.0), 0.0);
vec2 direction = vec2(-1.0, -1.0);
if(doLineBlend.y > 0.0)
{
origin = haveShallowLine.y > 0.0? vec2(0.25, 0.0) : vec2(0.5, 0.0);
direction.y -= haveShallowLine.y;
direction.x -= haveSteepLine.y;
}
vec3 blendPix = mix(F,B, step(DistYCbCr(E, B), DistYCbCr(E, F)));
res = mix(res, blendPix, get_left_ratio(pos, origin, direction, scale));
}
// Pixel Tap Mapping: -|B|-
// D|E|-
// -|-|-
if(blendResult.x > BLEND_NONE)
{
vec2 origin = vec2(0.0, -1.0 / sqrt(2.0));
vec2 direction = vec2(-1.0, 1.0);
if(doLineBlend.x > 0.0)
{
origin = haveShallowLine.x > 0.0? vec2(0.0, -0.25) : vec2(0.0, -0.5);
direction.x -= haveShallowLine.x;
direction.y += haveSteepLine.x;
}
vec3 blendPix = mix(D,B, step(DistYCbCr(E, B), DistYCbCr(E, D)));
res = mix(res, blendPix, get_left_ratio(pos, origin, direction, scale));
}
FragColor = vec4(res, 1.0);
}
#endif