diff --git a/xbrz/4xbrz-linear.glslp b/xbrz/4xbrz-linear.glslp
new file mode 100644
index 0000000..4c2b1b7
--- /dev/null
+++ b/xbrz/4xbrz-linear.glslp
@@ -0,0 +1,9 @@
+shaders = 2
+
+shader0 = shaders/4xbrz.glsl
+filter_linear0 = false
+scale_type0 = source
+scale0 = 4.0
+
+shader1 = ../stock.glsl
+filter_linear1 = true
diff --git a/xbrz/5xbrz-linear.glslp b/xbrz/5xbrz-linear.glslp
new file mode 100644
index 0000000..09da31e
--- /dev/null
+++ b/xbrz/5xbrz-linear.glslp
@@ -0,0 +1,9 @@
+shaders = 2
+
+shader0 = shaders/5xbrz.glsl
+filter_linear0 = false
+scale_type0 = source
+scale0 = 5.0
+
+shader1 = ../stock.glsl
+filter_linear1 = true
diff --git a/xbrz/6xbrz-linear.glslp b/xbrz/6xbrz-linear.glslp
new file mode 100644
index 0000000..337c008
--- /dev/null
+++ b/xbrz/6xbrz-linear.glslp
@@ -0,0 +1,9 @@
+shaders = 2
+
+shader0 = shaders/6xbrz.glsl
+filter_linear0 = false
+scale_type0 = source
+scale0 = 6.0
+
+shader1 = ../stock.glsl
+filter_linear1 = true
diff --git a/xbrz/shaders/4xbrz.glsl b/xbrz/shaders/4xbrz.glsl
new file mode 100644
index 0000000..8270434
--- /dev/null
+++ b/xbrz/shaders/4xbrz.glsl
@@ -0,0 +1,434 @@
+ // 4xBRZ shader - Copyright (C) 2014-2016 DeSmuME team
+ //
+ // This file is free software: you can redistribute it and/or modify
+ // it under the terms of the GNU General Public License as published by
+ // the Free Software Foundation, either version 2 of the License, or
+ // (at your option) any later version.
+ //
+ // This file is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ // GNU General Public License for more details.
+ //
+ // You should have received a copy of the GNU General Public License
+ // along with the this software. If not, see .
+
+
+/*
+ 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.
+
+*/
+
+// Compatibility #ifdefs needed for parameters
+#ifdef GL_ES
+#define COMPAT_PRECISION mediump
+#else
+#define COMPAT_PRECISION
+#endif
+
+#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
+
+ const float one_sixth = 1.0 / 6.0;
+ const float two_sixth = 2.0 / 6.0;
+ const float four_sixth = 4.0 / 6.0;
+ const float five_sixth = 5.0 / 6.0;
+
+ float reduce(const vec3 color)
+ {
+ return dot(color, vec3(65536.0, 256.0, 1.0));
+ }
+
+ float DistYCbCr(const vec3 pixA, const 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, 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);
+ }
+
+ bool IsBlendingNeeded(const ivec4 blend)
+ {
+ return any(notEqual(blend, ivec4(BLEND_NONE)));
+ }
+
+ //---------------------------------------
+ // Input Pixel Mapping: --|21|22|23|--
+ // 19|06|07|08|09
+ // 18|05|00|01|10
+ // 17|04|03|02|11
+ // --|15|14|13|--
+ //
+ // Output Pixel Mapping: 20|21|22|23|24|25
+ // 19|06|07|08|09|26
+ // 18|05|00|01|10|27
+ // 17|04|03|02|11|28
+ // 16|15|14|13|12|29
+ // 35|34|33|32|31|30
+
+#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;
+COMPAT_VARYING vec4 t1;
+COMPAT_VARYING vec4 t2;
+COMPAT_VARYING vec4 t3;
+COMPAT_VARYING vec4 t4;
+COMPAT_VARYING vec4 t5;
+COMPAT_VARYING vec4 t6;
+COMPAT_VARYING vec4 t7;
+
+uniform mat4 MVPMatrix;
+uniform int FrameDirection;
+uniform int FrameCount;
+uniform COMPAT_PRECISION vec2 OutputSize;
+uniform COMPAT_PRECISION vec2 TextureSize;
+uniform COMPAT_PRECISION vec2 InputSize;
+
+// vertex 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;
+ COL0 = COLOR;
+ TEX0.xy = TexCoord.xy;
+ vec2 ps = vec2(SourceSize.z, SourceSize.w);
+ float dx = ps.x;
+ float dy = ps.y;
+
+ // A1 B1 C1
+ // A0 A B C C4
+ // D0 D E F F4
+ // G0 G H I I4
+ // G5 H5 I5
+
+ t1 = vTexCoord.xxxy + vec4( -dx, 0.0, dx,-2.0*dy); // A1 B1 C1
+ t2 = vTexCoord.xxxy + vec4( -dx, 0.0, dx, -dy); // A B C
+ t3 = vTexCoord.xxxy + vec4( -dx, 0.0, dx, 0.0); // D E F
+ t4 = vTexCoord.xxxy + vec4( -dx, 0.0, dx, dy); // G H I
+ t5 = vTexCoord.xxxy + vec4( -dx, 0.0, dx, 2.0*dy); // G5 H5 I5
+ t6 = vTexCoord.xyyy + vec4(-2.0*dx,-dy, 0.0, dy); // A0 D0 G0
+ t7 = vTexCoord.xyyy + vec4( 2.0*dx,-dy, 0.0, dy); // C4 F4 I4
+}
+
+#elif defined(FRAGMENT)
+
+#if __VERSION__ >= 130
+#define COMPAT_VARYING in
+#define COMPAT_TEXTURE texture
+out vec4 FragColor;
+#else
+#define COMPAT_VARYING varying
+#define FragColor gl_FragColor
+#define COMPAT_TEXTURE texture2D
+#endif
+
+#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
+
+uniform int FrameDirection;
+uniform int FrameCount;
+uniform COMPAT_PRECISION vec2 OutputSize;
+uniform COMPAT_PRECISION vec2 TextureSize;
+uniform COMPAT_PRECISION vec2 InputSize;
+uniform sampler2D Texture;
+COMPAT_VARYING vec4 TEX0;
+COMPAT_VARYING vec4 t1;
+COMPAT_VARYING vec4 t2;
+COMPAT_VARYING vec4 t3;
+COMPAT_VARYING vec4 t4;
+COMPAT_VARYING vec4 t5;
+COMPAT_VARYING vec4 t6;
+COMPAT_VARYING vec4 t7;
+
+// fragment compatibility #defines
+#define Source Texture
+#define vTexCoord TEX0.xy
+#define texture(c, d) COMPAT_TEXTURE(c, d)
+#define SourceSize vec4(TextureSize, 1.0 / TextureSize) //either TextureSize or InputSize
+#define outsize vec4(OutputSize, 1.0 / OutputSize)
+
+// delete all '' or 'registers.' or whatever in the fragment
+
+void main()
+{
+vec2 f = fract(vTexCoord.xy * SourceSize.xy);
+
+ //---------------------------------------
+ // Input Pixel Mapping: 20|21|22|23|24
+ // 19|06|07|08|09
+ // 18|05|00|01|10
+ // 17|04|03|02|11
+ // 16|15|14|13|12
+
+ vec3 src[25];
+
+ src[21] = texture(Source, t1.xw).rgb;
+ src[22] = texture(Source, t1.yw).rgb;
+ src[23] = texture(Source, t1.zw).rgb;
+ src[ 6] = texture(Source, t2.xw).rgb;
+ src[ 7] = texture(Source, t2.yw).rgb;
+ src[ 8] = texture(Source, t2.zw).rgb;
+ src[ 5] = texture(Source, t3.xw).rgb;
+ src[ 0] = texture(Source, t3.yw).rgb;
+ src[ 1] = texture(Source, t3.zw).rgb;
+ src[ 4] = texture(Source, t4.xw).rgb;
+ src[ 3] = texture(Source, t4.yw).rgb;
+ src[ 2] = texture(Source, t4.zw).rgb;
+ src[15] = texture(Source, t5.xw).rgb;
+ src[14] = texture(Source, t5.yw).rgb;
+ src[13] = texture(Source, t5.zw).rgb;
+ src[19] = texture(Source, t6.xy).rgb;
+ src[18] = texture(Source, t6.xz).rgb;
+ src[17] = texture(Source, t6.xw).rgb;
+ src[ 9] = texture(Source, t7.xy).rgb;
+ src[10] = texture(Source, t7.xz).rgb;
+ src[11] = texture(Source, t7.xw).rgb;
+
+ float v[9];
+ v[0] = reduce(src[0]);
+ v[1] = reduce(src[1]);
+ v[2] = reduce(src[2]);
+ v[3] = reduce(src[3]);
+ v[4] = reduce(src[4]);
+ v[5] = reduce(src[5]);
+ v[6] = reduce(src[6]);
+ v[7] = reduce(src[7]);
+ v[8] = reduce(src[8]);
+
+ ivec4 blendResult = ivec4(BLEND_NONE);
+
+ // Preprocess corners
+ // Pixel Tap Mapping: --|--|--|--|--
+ // --|--|07|08|--
+ // --|05|00|01|10
+ // --|04|03|02|11
+ // --|--|14|13|--
+ // Corner (1, 1)
+ if ( ((v[0] == v[1] && v[3] == v[2]) || (v[0] == v[3] && v[1] == v[2])) == false)
+ {
+ float dist_03_01 = DistYCbCr(src[ 4], src[ 0]) + DistYCbCr(src[ 0], src[ 8]) + DistYCbCr(src[14], src[ 2]) + DistYCbCr(src[ 2], src[10]) + (4.0 * DistYCbCr(src[ 3], src[ 1]));
+ float dist_00_02 = DistYCbCr(src[ 5], src[ 3]) + DistYCbCr(src[ 3], src[13]) + DistYCbCr(src[ 7], src[ 1]) + DistYCbCr(src[ 1], src[11]) + (4.0 * DistYCbCr(src[ 0], src[ 2]));
+ bool dominantGradient = (DOMINANT_DIRECTION_THRESHOLD * dist_03_01) < dist_00_02;
+ blendResult[2] = ((dist_03_01 < dist_00_02) && (v[0] != v[1]) && (v[0] != v[3])) ? ((dominantGradient) ? BLEND_DOMINANT : BLEND_NORMAL) : BLEND_NONE;
+ }
+
+ // Pixel Tap Mapping: --|--|--|--|--
+ // --|06|07|--|--
+ // 18|05|00|01|--
+ // 17|04|03|02|--
+ // --|15|14|--|--
+ // Corner (0, 1)
+ if ( ((v[5] == v[0] && v[4] == v[3]) || (v[5] == v[4] && v[0] == v[3])) == false)
+ {
+ float dist_04_00 = DistYCbCr(src[17], src[ 5]) + DistYCbCr(src[ 5], src[ 7]) + DistYCbCr(src[15], src[ 3]) + DistYCbCr(src[ 3], src[ 1]) + (4.0 * DistYCbCr(src[ 4], src[ 0]));
+ float dist_05_03 = DistYCbCr(src[18], src[ 4]) + DistYCbCr(src[ 4], src[14]) + DistYCbCr(src[ 6], src[ 0]) + DistYCbCr(src[ 0], src[ 2]) + (4.0 * DistYCbCr(src[ 5], src[ 3]));
+ bool dominantGradient = (DOMINANT_DIRECTION_THRESHOLD * dist_05_03) < dist_04_00;
+ blendResult[3] = ((dist_04_00 > dist_05_03) && (v[0] != v[5]) && (v[0] != v[3])) ? ((dominantGradient) ? BLEND_DOMINANT : BLEND_NORMAL) : BLEND_NONE;
+ }
+
+ // Pixel Tap Mapping: --|--|22|23|--
+ // --|06|07|08|09
+ // --|05|00|01|10
+ // --|--|03|02|--
+ // --|--|--|--|--
+ // Corner (1, 0)
+ if ( ((v[7] == v[8] && v[0] == v[1]) || (v[7] == v[0] && v[8] == v[1])) == false)
+ {
+ float dist_00_08 = DistYCbCr(src[ 5], src[ 7]) + DistYCbCr(src[ 7], src[23]) + DistYCbCr(src[ 3], src[ 1]) + DistYCbCr(src[ 1], src[ 9]) + (4.0 * DistYCbCr(src[ 0], src[ 8]));
+ float dist_07_01 = DistYCbCr(src[ 6], src[ 0]) + DistYCbCr(src[ 0], src[ 2]) + DistYCbCr(src[22], src[ 8]) + DistYCbCr(src[ 8], src[10]) + (4.0 * DistYCbCr(src[ 7], src[ 1]));
+ bool dominantGradient = (DOMINANT_DIRECTION_THRESHOLD * dist_07_01) < dist_00_08;
+ blendResult[1] = ((dist_00_08 > dist_07_01) && (v[0] != v[7]) && (v[0] != v[1])) ? ((dominantGradient) ? BLEND_DOMINANT : BLEND_NORMAL) : BLEND_NONE;
+ }
+
+ // Pixel Tap Mapping: --|21|22|--|--
+ // 19|06|07|08|--
+ // 18|05|00|01|--
+ // --|04|03|--|--
+ // --|--|--|--|--
+ // Corner (0, 0)
+ if ( ((v[6] == v[7] && v[5] == v[0]) || (v[6] == v[5] && v[7] == v[0])) == false)
+ {
+ float dist_05_07 = DistYCbCr(src[18], src[ 6]) + DistYCbCr(src[ 6], src[22]) + DistYCbCr(src[ 4], src[ 0]) + DistYCbCr(src[ 0], src[ 8]) + (4.0 * DistYCbCr(src[ 5], src[ 7]));
+ float dist_06_00 = DistYCbCr(src[19], src[ 5]) + DistYCbCr(src[ 5], src[ 3]) + DistYCbCr(src[21], src[ 7]) + DistYCbCr(src[ 7], src[ 1]) + (4.0 * DistYCbCr(src[ 6], src[ 0]));
+ bool dominantGradient = (DOMINANT_DIRECTION_THRESHOLD * dist_05_07) < dist_06_00;
+ blendResult[0] = ((dist_05_07 < dist_06_00) && (v[0] != v[5]) && (v[0] != v[7])) ? ((dominantGradient) ? BLEND_DOMINANT : BLEND_NORMAL) : BLEND_NONE;
+ }
+
+ vec3 dst[16];
+ dst[ 0] = src[0];
+ dst[ 1] = src[0];
+ dst[ 2] = src[0];
+ dst[ 3] = src[0];
+ dst[ 4] = src[0];
+ dst[ 5] = src[0];
+ dst[ 6] = src[0];
+ dst[ 7] = src[0];
+ dst[ 8] = src[0];
+ dst[ 9] = src[0];
+ dst[10] = src[0];
+ dst[11] = src[0];
+ dst[12] = src[0];
+ dst[13] = src[0];
+ dst[14] = src[0];
+ dst[15] = src[0];
+
+ // Scale pixel
+ if (IsBlendingNeeded(blendResult) == true)
+ {
+ float dist_01_04 = DistYCbCr(src[1], src[4]);
+ float dist_03_08 = DistYCbCr(src[3], src[8]);
+ bool haveShallowLine = (STEEP_DIRECTION_THRESHOLD * dist_01_04 <= dist_03_08) && (v[0] != v[4]) && (v[5] != v[4]);
+ bool haveSteepLine = (STEEP_DIRECTION_THRESHOLD * dist_03_08 <= dist_01_04) && (v[0] != v[8]) && (v[7] != v[8]);
+ bool needBlend = (blendResult[2] != BLEND_NONE);
+ bool doLineBlend = ( blendResult[2] >= BLEND_DOMINANT ||
+ ((blendResult[1] != BLEND_NONE && !IsPixEqual(src[0], src[4])) ||
+ (blendResult[3] != BLEND_NONE && !IsPixEqual(src[0], src[8])) ||
+ (IsPixEqual(src[4], src[3]) && IsPixEqual(src[3], src[2]) && IsPixEqual(src[2], src[1]) && IsPixEqual(src[1], src[8]) && IsPixEqual(src[0], src[2]) == false) ) == false );
+
+ vec3 blendPix = ( DistYCbCr(src[0], src[1]) <= DistYCbCr(src[0], src[3]) ) ? src[1] : src[3];
+ dst[ 2] = mix(dst[ 2], blendPix, (needBlend && doLineBlend) ? ((haveShallowLine) ? ((haveSteepLine) ? 1.0/3.0 : 0.25) : ((haveSteepLine) ? 0.25 : 0.00)) : 0.00);
+ dst[ 9] = mix(dst[ 9], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 0.25 : 0.00);
+ dst[10] = mix(dst[10], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 0.75 : 0.00);
+ dst[11] = mix(dst[11], blendPix, (needBlend) ? ((doLineBlend) ? ((haveSteepLine) ? 1.00 : ((haveShallowLine) ? 0.75 : 0.50)) : 0.08677704501) : 0.00);
+ dst[12] = mix(dst[12], blendPix, (needBlend) ? ((doLineBlend) ? 1.00 : 0.6848532563) : 0.00);
+ dst[13] = mix(dst[13], blendPix, (needBlend) ? ((doLineBlend) ? ((haveShallowLine) ? 1.00 : ((haveSteepLine) ? 0.75 : 0.50)) : 0.08677704501) : 0.00);
+ dst[14] = mix(dst[14], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 0.75 : 0.00);
+ dst[15] = mix(dst[15], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 0.25 : 0.00);
+
+ dist_01_04 = DistYCbCr(src[7], src[2]);
+ dist_03_08 = DistYCbCr(src[1], src[6]);
+ haveShallowLine = (STEEP_DIRECTION_THRESHOLD * dist_01_04 <= dist_03_08) && (v[0] != v[2]) && (v[3] != v[2]);
+ haveSteepLine = (STEEP_DIRECTION_THRESHOLD * dist_03_08 <= dist_01_04) && (v[0] != v[6]) && (v[5] != v[6]);
+ needBlend = (blendResult[1] != BLEND_NONE);
+ doLineBlend = ( blendResult[1] >= BLEND_DOMINANT ||
+ !((blendResult[0] != BLEND_NONE && !IsPixEqual(src[0], src[2])) ||
+ (blendResult[2] != BLEND_NONE && !IsPixEqual(src[0], src[6])) ||
+ (IsPixEqual(src[2], src[1]) && IsPixEqual(src[1], src[8]) && IsPixEqual(src[8], src[7]) && IsPixEqual(src[7], src[6]) && !IsPixEqual(src[0], src[8])) ) );
+
+ blendPix = ( DistYCbCr(src[0], src[7]) <= DistYCbCr(src[0], src[1]) ) ? src[7] : src[1];
+ dst[ 1] = mix(dst[ 1], blendPix, (needBlend && doLineBlend) ? ((haveShallowLine) ? ((haveSteepLine) ? 1.0/3.0 : 0.25) : ((haveSteepLine) ? 0.25 : 0.00)) : 0.00);
+ dst[ 6] = mix(dst[ 6], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 0.25 : 0.00);
+ dst[ 7] = mix(dst[ 7], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 0.75 : 0.00);
+ dst[ 8] = mix(dst[ 8], blendPix, (needBlend) ? ((doLineBlend) ? ((haveSteepLine) ? 1.00 : ((haveShallowLine) ? 0.75 : 0.50)) : 0.08677704501) : 0.00);
+ dst[ 9] = mix(dst[ 9], blendPix, (needBlend) ? ((doLineBlend) ? 1.00 : 0.6848532563) : 0.00);
+ dst[10] = mix(dst[10], blendPix, (needBlend) ? ((doLineBlend) ? ((haveShallowLine) ? 1.00 : ((haveSteepLine) ? 0.75 : 0.50)) : 0.08677704501) : 0.00);
+ dst[11] = mix(dst[11], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 0.75 : 0.00);
+ dst[12] = mix(dst[12], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 0.25 : 0.00);
+
+ dist_01_04 = DistYCbCr(src[5], src[8]);
+ dist_03_08 = DistYCbCr(src[7], src[4]);
+ haveShallowLine = (STEEP_DIRECTION_THRESHOLD * dist_01_04 <= dist_03_08) && (v[0] != v[8]) && (v[1] != v[8]);
+ haveSteepLine = (STEEP_DIRECTION_THRESHOLD * dist_03_08 <= dist_01_04) && (v[0] != v[4]) && (v[3] != v[4]);
+ needBlend = (blendResult[0] != BLEND_NONE);
+ doLineBlend = ( blendResult[0] >= BLEND_DOMINANT ||
+ !((blendResult[3] != BLEND_NONE && !IsPixEqual(src[0], src[8])) ||
+ (blendResult[1] != BLEND_NONE && !IsPixEqual(src[0], src[4])) ||
+ (IsPixEqual(src[8], src[7]) && IsPixEqual(src[7], src[6]) && IsPixEqual(src[6], src[5]) && IsPixEqual(src[5], src[4]) && !IsPixEqual(src[0], src[6])) ) );
+
+ blendPix = ( DistYCbCr(src[0], src[5]) <= DistYCbCr(src[0], src[7]) ) ? src[5] : src[7];
+ dst[ 0] = mix(dst[ 0], blendPix, (needBlend && doLineBlend) ? ((haveShallowLine) ? ((haveSteepLine) ? 1.0/3.0 : 0.25) : ((haveSteepLine) ? 0.25 : 0.00)) : 0.00);
+ dst[15] = mix(dst[15], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 0.25 : 0.00);
+ dst[ 4] = mix(dst[ 4], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 0.75 : 0.00);
+ dst[ 5] = mix(dst[ 5], blendPix, (needBlend) ? ((doLineBlend) ? ((haveSteepLine) ? 1.00 : ((haveShallowLine) ? 0.75 : 0.50)) : 0.08677704501) : 0.00);
+ dst[ 6] = mix(dst[ 6], blendPix, (needBlend) ? ((doLineBlend) ? 1.00 : 0.6848532563) : 0.00);
+ dst[ 7] = mix(dst[ 7], blendPix, (needBlend) ? ((doLineBlend) ? ((haveShallowLine) ? 1.00 : ((haveSteepLine) ? 0.75 : 0.50)) : 0.08677704501) : 0.00);
+ dst[ 8] = mix(dst[ 8], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 0.75 : 0.00);
+ dst[ 9] = mix(dst[ 9], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 0.25 : 0.00);
+
+
+ dist_01_04 = DistYCbCr(src[3], src[6]);
+ dist_03_08 = DistYCbCr(src[5], src[2]);
+ haveShallowLine = (STEEP_DIRECTION_THRESHOLD * dist_01_04 <= dist_03_08) && (v[0] != v[6]) && (v[7] != v[6]);
+ haveSteepLine = (STEEP_DIRECTION_THRESHOLD * dist_03_08 <= dist_01_04) && (v[0] != v[2]) && (v[1] != v[2]);
+ needBlend = (blendResult[3] != BLEND_NONE);
+ doLineBlend = ( blendResult[3] >= BLEND_DOMINANT ||
+ !((blendResult[2] != BLEND_NONE && !IsPixEqual(src[0], src[6])) ||
+ (blendResult[0] != BLEND_NONE && !IsPixEqual(src[0], src[2])) ||
+ (IsPixEqual(src[6], src[5]) && IsPixEqual(src[5], src[4]) && IsPixEqual(src[4], src[3]) && IsPixEqual(src[3], src[2]) && !IsPixEqual(src[0], src[4])) ) );
+
+ blendPix = ( DistYCbCr(src[0], src[3]) <= DistYCbCr(src[0], src[5]) ) ? src[3] : src[5];
+ dst[ 3] = mix(dst[ 3], blendPix, (needBlend && doLineBlend) ? ((haveShallowLine) ? ((haveSteepLine) ? 1.0/3.0 : 0.25) : ((haveSteepLine) ? 0.25 : 0.00)) : 0.00);
+ dst[12] = mix(dst[12], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 0.25 : 0.00);
+ dst[13] = mix(dst[13], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 0.75 : 0.00);
+ dst[14] = mix(dst[14], blendPix, (needBlend) ? ((doLineBlend) ? ((haveSteepLine) ? 1.00 : ((haveShallowLine) ? 0.75 : 0.50)) : 0.08677704501) : 0.00);
+ dst[15] = mix(dst[15], blendPix, (needBlend) ? ((doLineBlend) ? 1.00 : 0.6848532563) : 0.00);
+ dst[ 4] = mix(dst[ 4], blendPix, (needBlend) ? ((doLineBlend) ? ((haveShallowLine) ? 1.00 : ((haveSteepLine) ? 0.75 : 0.50)) : 0.08677704501) : 0.00);
+ dst[ 5] = mix(dst[ 5], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 0.75 : 0.00);
+ dst[ 6] = mix(dst[ 6], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 0.25 : 0.00);
+ }
+
+ vec3 res = mix( mix( mix( mix(dst[ 6], dst[ 7], step(0.25, f.x)), mix(dst[ 8], dst[ 9], step(0.75, f.x)), step(0.50, f.x)),
+ mix( mix(dst[ 5], dst[ 0], step(0.25, f.x)), mix(dst[ 1], dst[10], step(0.75, f.x)), step(0.50, f.x)), step(0.25, f.y)),
+ mix( mix( mix(dst[ 4], dst[ 3], step(0.25, f.x)), mix(dst[ 2], dst[11], step(0.75, f.x)), step(0.50, f.x)),
+ mix( mix(dst[15], dst[14], step(0.25, f.x)), mix(dst[13], dst[12], step(0.75, f.x)), step(0.50, f.x)), step(0.75, f.y)),
+ step(0.50, f.y));
+
+ FragColor = vec4(res, 1.0);
+}
+#endif
diff --git a/xbrz/shaders/5xbrz.glsl b/xbrz/shaders/5xbrz.glsl
new file mode 100644
index 0000000..19d0a6a
--- /dev/null
+++ b/xbrz/shaders/5xbrz.glsl
@@ -0,0 +1,459 @@
+ // 5xBRZ shader - Copyright (C) 2014-2016 DeSmuME team
+ //
+ // This file is free software: you can redistribute it and/or modify
+ // it under the terms of the GNU General Public License as published by
+ // the Free Software Foundation, either version 2 of the License, or
+ // (at your option) any later version.
+ //
+ // This file is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ // GNU General Public License for more details.
+ //
+ // You should have received a copy of the GNU General Public License
+ // along with the this software. If not, see .
+
+
+/*
+ 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.
+
+*/
+
+// Compatibility #ifdefs needed for parameters
+#ifdef GL_ES
+#define COMPAT_PRECISION mediump
+#else
+#define COMPAT_PRECISION
+#endif
+
+#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
+
+ const float one_sixth = 1.0 / 6.0;
+ const float two_sixth = 2.0 / 6.0;
+ const float four_sixth = 4.0 / 6.0;
+ const float five_sixth = 5.0 / 6.0;
+
+ float reduce(const vec3 color)
+ {
+ return dot(color, vec3(65536.0, 256.0, 1.0));
+ }
+
+ float DistYCbCr(const vec3 pixA, const 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, 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);
+ }
+
+ bool IsBlendingNeeded(const ivec4 blend)
+ {
+ return any(notEqual(blend, ivec4(BLEND_NONE)));
+ }
+
+ //---------------------------------------
+ // Input Pixel Mapping: --|21|22|23|--
+ // 19|06|07|08|09
+ // 18|05|00|01|10
+ // 17|04|03|02|11
+ // --|15|14|13|--
+ //
+ // Output Pixel Mapping: 20|21|22|23|24|25
+ // 19|06|07|08|09|26
+ // 18|05|00|01|10|27
+ // 17|04|03|02|11|28
+ // 16|15|14|13|12|29
+ // 35|34|33|32|31|30
+
+#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;
+COMPAT_VARYING vec4 t1;
+COMPAT_VARYING vec4 t2;
+COMPAT_VARYING vec4 t3;
+COMPAT_VARYING vec4 t4;
+COMPAT_VARYING vec4 t5;
+COMPAT_VARYING vec4 t6;
+COMPAT_VARYING vec4 t7;
+
+uniform mat4 MVPMatrix;
+uniform int FrameDirection;
+uniform int FrameCount;
+uniform COMPAT_PRECISION vec2 OutputSize;
+uniform COMPAT_PRECISION vec2 TextureSize;
+uniform COMPAT_PRECISION vec2 InputSize;
+
+// vertex 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;
+ COL0 = COLOR;
+ TEX0.xy = TexCoord.xy;
+ vec2 ps = vec2(SourceSize.z, SourceSize.w);
+ float dx = ps.x;
+ float dy = ps.y;
+
+ // A1 B1 C1
+ // A0 A B C C4
+ // D0 D E F F4
+ // G0 G H I I4
+ // G5 H5 I5
+
+ t1 = vTexCoord.xxxy + vec4( -dx, 0.0, dx,-2.0*dy); // A1 B1 C1
+ t2 = vTexCoord.xxxy + vec4( -dx, 0.0, dx, -dy); // A B C
+ t3 = vTexCoord.xxxy + vec4( -dx, 0.0, dx, 0.0); // D E F
+ t4 = vTexCoord.xxxy + vec4( -dx, 0.0, dx, dy); // G H I
+ t5 = vTexCoord.xxxy + vec4( -dx, 0.0, dx, 2.0*dy); // G5 H5 I5
+ t6 = vTexCoord.xyyy + vec4(-2.0*dx,-dy, 0.0, dy); // A0 D0 G0
+ t7 = vTexCoord.xyyy + vec4( 2.0*dx,-dy, 0.0, dy); // C4 F4 I4
+}
+
+#elif defined(FRAGMENT)
+
+#if __VERSION__ >= 130
+#define COMPAT_VARYING in
+#define COMPAT_TEXTURE texture
+out vec4 FragColor;
+#else
+#define COMPAT_VARYING varying
+#define FragColor gl_FragColor
+#define COMPAT_TEXTURE texture2D
+#endif
+
+#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
+
+uniform int FrameDirection;
+uniform int FrameCount;
+uniform COMPAT_PRECISION vec2 OutputSize;
+uniform COMPAT_PRECISION vec2 TextureSize;
+uniform COMPAT_PRECISION vec2 InputSize;
+uniform sampler2D Texture;
+COMPAT_VARYING vec4 TEX0;
+COMPAT_VARYING vec4 t1;
+COMPAT_VARYING vec4 t2;
+COMPAT_VARYING vec4 t3;
+COMPAT_VARYING vec4 t4;
+COMPAT_VARYING vec4 t5;
+COMPAT_VARYING vec4 t6;
+COMPAT_VARYING vec4 t7;
+
+// fragment compatibility #defines
+#define Source Texture
+#define vTexCoord TEX0.xy
+#define texture(c, d) COMPAT_TEXTURE(c, d)
+#define SourceSize vec4(TextureSize, 1.0 / TextureSize) //either TextureSize or InputSize
+#define outsize vec4(OutputSize, 1.0 / OutputSize)
+
+void main()
+{
+vec2 f = fract(vTexCoord.xy * SourceSize.xy);
+
+ //---------------------------------------
+ // Input Pixel Mapping: 20|21|22|23|24
+ // 19|06|07|08|09
+ // 18|05|00|01|10
+ // 17|04|03|02|11
+ // 16|15|14|13|12
+
+ vec3 src[25];
+
+ src[21] = texture(Source, t1.xw).rgb;
+ src[22] = texture(Source, t1.yw).rgb;
+ src[23] = texture(Source, t1.zw).rgb;
+ src[ 6] = texture(Source, t2.xw).rgb;
+ src[ 7] = texture(Source, t2.yw).rgb;
+ src[ 8] = texture(Source, t2.zw).rgb;
+ src[ 5] = texture(Source, t3.xw).rgb;
+ src[ 0] = texture(Source, t3.yw).rgb;
+ src[ 1] = texture(Source, t3.zw).rgb;
+ src[ 4] = texture(Source, t4.xw).rgb;
+ src[ 3] = texture(Source, t4.yw).rgb;
+ src[ 2] = texture(Source, t4.zw).rgb;
+ src[15] = texture(Source, t5.xw).rgb;
+ src[14] = texture(Source, t5.yw).rgb;
+ src[13] = texture(Source, t5.zw).rgb;
+ src[19] = texture(Source, t6.xy).rgb;
+ src[18] = texture(Source, t6.xz).rgb;
+ src[17] = texture(Source, t6.xw).rgb;
+ src[ 9] = texture(Source, t7.xy).rgb;
+ src[10] = texture(Source, t7.xz).rgb;
+ src[11] = texture(Source, t7.xw).rgb;
+
+ float v[9];
+ v[0] = reduce(src[0]);
+ v[1] = reduce(src[1]);
+ v[2] = reduce(src[2]);
+ v[3] = reduce(src[3]);
+ v[4] = reduce(src[4]);
+ v[5] = reduce(src[5]);
+ v[6] = reduce(src[6]);
+ v[7] = reduce(src[7]);
+ v[8] = reduce(src[8]);
+
+ ivec4 blendResult = ivec4(BLEND_NONE);
+
+ // Preprocess corners
+ // Pixel Tap Mapping: --|--|--|--|--
+ // --|--|07|08|--
+ // --|05|00|01|10
+ // --|04|03|02|11
+ // --|--|14|13|--
+ // Corner (1, 1)
+ if ( ((v[0] == v[1] && v[3] == v[2]) || (v[0] == v[3] && v[1] == v[2])) == false)
+ {
+ float dist_03_01 = DistYCbCr(src[ 4], src[ 0]) + DistYCbCr(src[ 0], src[ 8]) + DistYCbCr(src[14], src[ 2]) + DistYCbCr(src[ 2], src[10]) + (4.0 * DistYCbCr(src[ 3], src[ 1]));
+ float dist_00_02 = DistYCbCr(src[ 5], src[ 3]) + DistYCbCr(src[ 3], src[13]) + DistYCbCr(src[ 7], src[ 1]) + DistYCbCr(src[ 1], src[11]) + (4.0 * DistYCbCr(src[ 0], src[ 2]));
+ bool dominantGradient = (DOMINANT_DIRECTION_THRESHOLD * dist_03_01) < dist_00_02;
+ blendResult[2] = ((dist_03_01 < dist_00_02) && (v[0] != v[1]) && (v[0] != v[3])) ? ((dominantGradient) ? BLEND_DOMINANT : BLEND_NORMAL) : BLEND_NONE;
+ }
+
+ // Pixel Tap Mapping: --|--|--|--|--
+ // --|06|07|--|--
+ // 18|05|00|01|--
+ // 17|04|03|02|--
+ // --|15|14|--|--
+ // Corner (0, 1)
+ if ( ((v[5] == v[0] && v[4] == v[3]) || (v[5] == v[4] && v[0] == v[3])) == false)
+ {
+ float dist_04_00 = DistYCbCr(src[17], src[ 5]) + DistYCbCr(src[ 5], src[ 7]) + DistYCbCr(src[15], src[ 3]) + DistYCbCr(src[ 3], src[ 1]) + (4.0 * DistYCbCr(src[ 4], src[ 0]));
+ float dist_05_03 = DistYCbCr(src[18], src[ 4]) + DistYCbCr(src[ 4], src[14]) + DistYCbCr(src[ 6], src[ 0]) + DistYCbCr(src[ 0], src[ 2]) + (4.0 * DistYCbCr(src[ 5], src[ 3]));
+ bool dominantGradient = (DOMINANT_DIRECTION_THRESHOLD * dist_05_03) < dist_04_00;
+ blendResult[3] = ((dist_04_00 > dist_05_03) && (v[0] != v[5]) && (v[0] != v[3])) ? ((dominantGradient) ? BLEND_DOMINANT : BLEND_NORMAL) : BLEND_NONE;
+ }
+
+ // Pixel Tap Mapping: --|--|22|23|--
+ // --|06|07|08|09
+ // --|05|00|01|10
+ // --|--|03|02|--
+ // --|--|--|--|--
+ // Corner (1, 0)
+ if ( ((v[7] == v[8] && v[0] == v[1]) || (v[7] == v[0] && v[8] == v[1])) == false)
+ {
+ float dist_00_08 = DistYCbCr(src[ 5], src[ 7]) + DistYCbCr(src[ 7], src[23]) + DistYCbCr(src[ 3], src[ 1]) + DistYCbCr(src[ 1], src[ 9]) + (4.0 * DistYCbCr(src[ 0], src[ 8]));
+ float dist_07_01 = DistYCbCr(src[ 6], src[ 0]) + DistYCbCr(src[ 0], src[ 2]) + DistYCbCr(src[22], src[ 8]) + DistYCbCr(src[ 8], src[10]) + (4.0 * DistYCbCr(src[ 7], src[ 1]));
+ bool dominantGradient = (DOMINANT_DIRECTION_THRESHOLD * dist_07_01) < dist_00_08;
+ blendResult[1] = ((dist_00_08 > dist_07_01) && (v[0] != v[7]) && (v[0] != v[1])) ? ((dominantGradient) ? BLEND_DOMINANT : BLEND_NORMAL) : BLEND_NONE;
+ }
+
+ // Pixel Tap Mapping: --|21|22|--|--
+ // 19|06|07|08|--
+ // 18|05|00|01|--
+ // --|04|03|--|--
+ // --|--|--|--|--
+ // Corner (0, 0)
+ if ( ((v[6] == v[7] && v[5] == v[0]) || (v[6] == v[5] && v[7] == v[0])) == false)
+ {
+ float dist_05_07 = DistYCbCr(src[18], src[ 6]) + DistYCbCr(src[ 6], src[22]) + DistYCbCr(src[ 4], src[ 0]) + DistYCbCr(src[ 0], src[ 8]) + (4.0 * DistYCbCr(src[ 5], src[ 7]));
+ float dist_06_00 = DistYCbCr(src[19], src[ 5]) + DistYCbCr(src[ 5], src[ 3]) + DistYCbCr(src[21], src[ 7]) + DistYCbCr(src[ 7], src[ 1]) + (4.0 * DistYCbCr(src[ 6], src[ 0]));
+ bool dominantGradient = (DOMINANT_DIRECTION_THRESHOLD * dist_05_07) < dist_06_00;
+ blendResult[0] = ((dist_05_07 < dist_06_00) && (v[0] != v[5]) && (v[0] != v[7])) ? ((dominantGradient) ? BLEND_DOMINANT : BLEND_NORMAL) : BLEND_NONE;
+ }
+
+ vec3 dst[25];
+ dst[ 0] = src[0];
+ dst[ 1] = src[0];
+ dst[ 2] = src[0];
+ dst[ 3] = src[0];
+ dst[ 4] = src[0];
+ dst[ 5] = src[0];
+ dst[ 6] = src[0];
+ dst[ 7] = src[0];
+ dst[ 8] = src[0];
+ dst[ 9] = src[0];
+ dst[10] = src[0];
+ dst[11] = src[0];
+ dst[12] = src[0];
+ dst[13] = src[0];
+ dst[14] = src[0];
+ dst[15] = src[0];
+ dst[16] = src[0];
+ dst[17] = src[0];
+ dst[18] = src[0];
+ dst[19] = src[0];
+ dst[20] = src[0];
+ dst[21] = src[0];
+ dst[22] = src[0];
+ dst[23] = src[0];
+ dst[24] = src[0];
+
+ // Scale pixel
+ if (IsBlendingNeeded(blendResult) == true)
+ {
+ float dist_01_04 = DistYCbCr(src[1], src[4]);
+ float dist_03_08 = DistYCbCr(src[3], src[8]);
+ bool haveShallowLine = (STEEP_DIRECTION_THRESHOLD * dist_01_04 <= dist_03_08) && (v[0] != v[4]) && (v[5] != v[4]);
+ bool haveSteepLine = (STEEP_DIRECTION_THRESHOLD * dist_03_08 <= dist_01_04) && (v[0] != v[8]) && (v[7] != v[8]);
+ bool needBlend = (blendResult[2] != BLEND_NONE);
+ bool doLineBlend = ( blendResult[2] >= BLEND_DOMINANT ||
+ ((blendResult[1] != BLEND_NONE && !IsPixEqual(src[0], src[4])) ||
+ (blendResult[3] != BLEND_NONE && !IsPixEqual(src[0], src[8])) ||
+ (IsPixEqual(src[4], src[3]) && IsPixEqual(src[3], src[2]) && IsPixEqual(src[2], src[1]) && IsPixEqual(src[1], src[8]) && IsPixEqual(src[0], src[2]) == false) ) == false );
+
+ vec3 blendPix = ( DistYCbCr(src[0], src[1]) <= DistYCbCr(src[0], src[3]) ) ? src[1] : src[3];
+ dst[ 1] = mix(dst[ 1], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 0.250 : 0.000);
+ dst[ 2] = mix(dst[ 2], blendPix, (needBlend && doLineBlend) ? ((haveShallowLine) ? ((haveSteepLine) ? 2.0/3.0 : 0.750) : ((haveSteepLine) ? 0.750 : 0.125)) : 0.000);
+ dst[ 3] = mix(dst[ 3], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 0.250 : 0.000);
+ dst[ 9] = mix(dst[ 9], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 0.750 : 0.000);
+ dst[10] = mix(dst[10], blendPix, (needBlend && doLineBlend) ? ((haveSteepLine) ? 1.000 : ((haveShallowLine) ? 0.250 : 0.125)) : 0.000);
+ dst[11] = mix(dst[11], blendPix, (needBlend) ? ((doLineBlend) ? ((!haveShallowLine && !haveSteepLine) ? 0.875 : 1.000) : 0.2306749731) : 0.000);
+ dst[12] = mix(dst[12], blendPix, (needBlend) ? ((doLineBlend) ? 1.000 : 0.8631434088) : 0.000);
+ dst[13] = mix(dst[13], blendPix, (needBlend) ? ((doLineBlend) ? ((!haveShallowLine && !haveSteepLine) ? 0.875 : 1.000) : 0.2306749731) : 0.000);
+ dst[14] = mix(dst[14], blendPix, (needBlend && doLineBlend) ? ((haveShallowLine) ? 1.000 : ((haveSteepLine) ? 0.250 : 0.125)) : 0.000);
+ dst[15] = mix(dst[15], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 0.750 : 0.000);
+ dst[16] = mix(dst[16], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 0.250 : 0.000);
+ dst[24] = mix(dst[24], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 0.250 : 0.000);
+
+ dist_01_04 = DistYCbCr(src[7], src[2]);
+ dist_03_08 = DistYCbCr(src[1], src[6]);
+ haveShallowLine = (STEEP_DIRECTION_THRESHOLD * dist_01_04 <= dist_03_08) && (v[0] != v[2]) && (v[3] != v[2]);
+ haveSteepLine = (STEEP_DIRECTION_THRESHOLD * dist_03_08 <= dist_01_04) && (v[0] != v[6]) && (v[5] != v[6]);
+ needBlend = (blendResult[1] != BLEND_NONE);
+ doLineBlend = ( blendResult[1] >= BLEND_DOMINANT ||
+ !((blendResult[0] != BLEND_NONE && !IsPixEqual(src[0], src[2])) ||
+ (blendResult[2] != BLEND_NONE && !IsPixEqual(src[0], src[6])) ||
+ (IsPixEqual(src[2], src[1]) && IsPixEqual(src[1], src[8]) && IsPixEqual(src[8], src[7]) && IsPixEqual(src[7], src[6]) && !IsPixEqual(src[0], src[8])) ) );
+
+ blendPix = ( DistYCbCr(src[0], src[7]) <= DistYCbCr(src[0], src[1]) ) ? src[7] : src[1];
+ dst[ 7] = mix(dst[ 7], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 0.250 : 0.000);
+ dst[ 8] = mix(dst[ 8], blendPix, (needBlend && doLineBlend) ? ((haveShallowLine) ? ((haveSteepLine) ? 2.0/3.0 : 0.750) : ((haveSteepLine) ? 0.750 : 0.125)) : 0.000);
+ dst[ 1] = mix(dst[ 1], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 0.250 : 0.000);
+ dst[21] = mix(dst[21], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 0.750 : 0.000);
+ dst[22] = mix(dst[22], blendPix, (needBlend && doLineBlend) ? ((haveSteepLine) ? 1.000 : ((haveShallowLine) ? 0.250 : 0.125)) : 0.000);
+ dst[23] = mix(dst[23], blendPix, (needBlend) ? ((doLineBlend) ? ((!haveShallowLine && !haveSteepLine) ? 0.875 : 1.000) : 0.2306749731) : 0.000);
+ dst[24] = mix(dst[24], blendPix, (needBlend) ? ((doLineBlend) ? 1.000 : 0.8631434088) : 0.000);
+ dst[ 9] = mix(dst[ 9], blendPix, (needBlend) ? ((doLineBlend) ? ((!haveShallowLine && !haveSteepLine) ? 0.875 : 1.000) : 0.2306749731) : 0.000);
+ dst[10] = mix(dst[10], blendPix, (needBlend && doLineBlend) ? ((haveShallowLine) ? 1.000 : ((haveSteepLine) ? 0.250 : 0.125)) : 0.000);
+ dst[11] = mix(dst[11], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 0.750 : 0.000);
+ dst[12] = mix(dst[12], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 0.250 : 0.000);
+ dst[20] = mix(dst[20], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 0.250 : 0.000);
+
+ dist_01_04 = DistYCbCr(src[5], src[8]);
+ dist_03_08 = DistYCbCr(src[7], src[4]);
+ haveShallowLine = (STEEP_DIRECTION_THRESHOLD * dist_01_04 <= dist_03_08) && (v[0] != v[8]) && (v[1] != v[8]);
+ haveSteepLine = (STEEP_DIRECTION_THRESHOLD * dist_03_08 <= dist_01_04) && (v[0] != v[4]) && (v[3] != v[4]);
+ needBlend = (blendResult[0] != BLEND_NONE);
+ doLineBlend = ( blendResult[0] >= BLEND_DOMINANT ||
+ !((blendResult[3] != BLEND_NONE && !IsPixEqual(src[0], src[8])) ||
+ (blendResult[1] != BLEND_NONE && !IsPixEqual(src[0], src[4])) ||
+ (IsPixEqual(src[8], src[7]) && IsPixEqual(src[7], src[6]) && IsPixEqual(src[6], src[5]) && IsPixEqual(src[5], src[4]) && !IsPixEqual(src[0], src[6])) ) );
+
+ blendPix = ( DistYCbCr(src[0], src[5]) <= DistYCbCr(src[0], src[7]) ) ? src[5] : src[7];
+ dst[ 5] = mix(dst[ 5], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 0.250 : 0.000);
+ dst[ 6] = mix(dst[ 6], blendPix, (needBlend && doLineBlend) ? ((haveShallowLine) ? ((haveSteepLine) ? 2.0/3.0 : 0.750) : ((haveSteepLine) ? 0.750 : 0.125)) : 0.000);
+ dst[ 7] = mix(dst[ 7], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 0.250 : 0.000);
+ dst[17] = mix(dst[17], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 0.750 : 0.000);
+ dst[18] = mix(dst[18], blendPix, (needBlend && doLineBlend) ? ((haveSteepLine) ? 1.000 : ((haveShallowLine) ? 0.250 : 0.125)) : 0.000);
+ dst[19] = mix(dst[19], blendPix, (needBlend) ? ((doLineBlend) ? ((!haveShallowLine && !haveSteepLine) ? 0.875 : 1.000) : 0.2306749731) : 0.000);
+ dst[20] = mix(dst[20], blendPix, (needBlend) ? ((doLineBlend) ? 1.000 : 0.8631434088) : 0.000);
+ dst[21] = mix(dst[21], blendPix, (needBlend) ? ((doLineBlend) ? ((!haveShallowLine && !haveSteepLine) ? 0.875 : 1.000) : 0.2306749731) : 0.000);
+ dst[22] = mix(dst[22], blendPix, (needBlend && doLineBlend) ? ((haveShallowLine) ? 1.000 : ((haveSteepLine) ? 0.250 : 0.125)) : 0.000);
+ dst[23] = mix(dst[23], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 0.750 : 0.000);
+ dst[24] = mix(dst[24], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 0.250 : 0.000);
+ dst[16] = mix(dst[16], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 0.250 : 0.000);
+
+
+ dist_01_04 = DistYCbCr(src[3], src[6]);
+ dist_03_08 = DistYCbCr(src[5], src[2]);
+ haveShallowLine = (STEEP_DIRECTION_THRESHOLD * dist_01_04 <= dist_03_08) && (v[0] != v[6]) && (v[7] != v[6]);
+ haveSteepLine = (STEEP_DIRECTION_THRESHOLD * dist_03_08 <= dist_01_04) && (v[0] != v[2]) && (v[1] != v[2]);
+ needBlend = (blendResult[3] != BLEND_NONE);
+ doLineBlend = ( blendResult[3] >= BLEND_DOMINANT ||
+ !((blendResult[2] != BLEND_NONE && !IsPixEqual(src[0], src[6])) ||
+ (blendResult[0] != BLEND_NONE && !IsPixEqual(src[0], src[2])) ||
+ (IsPixEqual(src[6], src[5]) && IsPixEqual(src[5], src[4]) && IsPixEqual(src[4], src[3]) && IsPixEqual(src[3], src[2]) && !IsPixEqual(src[0], src[4])) ) );
+
+ blendPix = ( DistYCbCr(src[0], src[3]) <= DistYCbCr(src[0], src[5]) ) ? src[3] : src[5];
+ dst[ 3] = mix(dst[ 3], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 0.250 : 0.000);
+ dst[ 4] = mix(dst[ 4], blendPix, (needBlend && doLineBlend) ? ((haveShallowLine) ? ((haveSteepLine) ? 2.0/3.0 : 0.750) : ((haveSteepLine) ? 0.750 : 0.125)) : 0.000);
+ dst[ 5] = mix(dst[ 5], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 0.250 : 0.000);
+ dst[13] = mix(dst[13], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 0.750 : 0.000);
+ dst[14] = mix(dst[14], blendPix, (needBlend && doLineBlend) ? ((haveSteepLine) ? 1.000 : ((haveShallowLine) ? 0.250 : 0.125)) : 0.000);
+ dst[15] = mix(dst[15], blendPix, (needBlend) ? ((doLineBlend) ? ((!haveShallowLine && !haveSteepLine) ? 0.875 : 1.000) : 0.2306749731) : 0.000);
+ dst[16] = mix(dst[16], blendPix, (needBlend) ? ((doLineBlend) ? 1.000 : 0.8631434088) : 0.000);
+ dst[17] = mix(dst[17], blendPix, (needBlend) ? ((doLineBlend) ? ((!haveShallowLine && !haveSteepLine) ? 0.875 : 1.000) : 0.2306749731) : 0.000);
+ dst[18] = mix(dst[18], blendPix, (needBlend && doLineBlend) ? ((haveShallowLine) ? 1.000 : ((haveSteepLine) ? 0.250 : 0.125)) : 0.000);
+ dst[19] = mix(dst[19], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 0.750 : 0.000);
+ dst[20] = mix(dst[20], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 0.250 : 0.000);
+ dst[12] = mix(dst[12], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 0.250 : 0.000);
+ }
+
+ vec3 res = mix( mix( dst[20], mix( mix(dst[21], dst[22], step(0.40, f.x)), mix(dst[23], dst[24], step(0.80, f.x)), step(0.60, f.x)), step(0.20, f.x) ),
+ mix( mix( mix( dst[19], mix( mix(dst[ 6], dst[ 7], step(0.40, f.x)), mix(dst[ 8], dst[ 9], step(0.80, f.x)), step(0.60, f.x)), step(0.20, f.x) ),
+ mix( dst[18], mix( mix(dst[ 5], dst[ 0], step(0.40, f.x)), mix(dst[ 1], dst[10], step(0.80, f.x)), step(0.60, f.x)), step(0.20, f.x) ), step(0.40, f.y)),
+ mix( mix( dst[17], mix( mix(dst[ 4], dst[ 3], step(0.40, f.x)), mix(dst[ 2], dst[11], step(0.80, f.x)), step(0.60, f.x)), step(0.20, f.x) ),
+ mix( dst[16], mix( mix(dst[15], dst[14], step(0.40, f.x)), mix(dst[13], dst[12], step(0.80, f.x)), step(0.60, f.x)), step(0.20, f.x) ), step(0.80, f.y)),
+ step(0.60, f.y)),
+ step(0.20, f.y));
+
+ FragColor = vec4(res, 1.0);
+}
+#endif
diff --git a/xbrz/shaders/6xbrz.glsl b/xbrz/shaders/6xbrz.glsl
new file mode 100644
index 0000000..c7e6cc5
--- /dev/null
+++ b/xbrz/shaders/6xbrz.glsl
@@ -0,0 +1,497 @@
+ // 6xBRZ shader - Copyright (C) 2014-2016 DeSmuME team
+ //
+ // This file is free software: you can redistribute it and/or modify
+ // it under the terms of the GNU General Public License as published by
+ // the Free Software Foundation, either version 2 of the License, or
+ // (at your option) any later version.
+ //
+ // This file is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ // GNU General Public License for more details.
+ //
+ // You should have received a copy of the GNU General Public License
+ // along with the this software. If not, see .
+
+
+/*
+ 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.
+
+*/
+
+// Compatibility #ifdefs needed for parameters
+#ifdef GL_ES
+#define COMPAT_PRECISION mediump
+#else
+#define COMPAT_PRECISION
+#endif
+
+#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
+
+ const float one_sixth = 1.0 / 6.0;
+ const float two_sixth = 2.0 / 6.0;
+ const float four_sixth = 4.0 / 6.0;
+ const float five_sixth = 5.0 / 6.0;
+
+ float reduce(const vec3 color)
+ {
+ return dot(color, vec3(65536.0, 256.0, 1.0));
+ }
+
+ float DistYCbCr(const vec3 pixA, const 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, 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);
+ }
+
+ bool IsBlendingNeeded(const ivec4 blend)
+ {
+ return any(notEqual(blend, ivec4(BLEND_NONE)));
+ }
+
+ //---------------------------------------
+ // Input Pixel Mapping: --|21|22|23|--
+ // 19|06|07|08|09
+ // 18|05|00|01|10
+ // 17|04|03|02|11
+ // --|15|14|13|--
+ //
+ // Output Pixel Mapping: 20|21|22|23|24|25
+ // 19|06|07|08|09|26
+ // 18|05|00|01|10|27
+ // 17|04|03|02|11|28
+ // 16|15|14|13|12|29
+ // 35|34|33|32|31|30
+
+#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;
+COMPAT_VARYING vec4 t1;
+COMPAT_VARYING vec4 t2;
+COMPAT_VARYING vec4 t3;
+COMPAT_VARYING vec4 t4;
+COMPAT_VARYING vec4 t5;
+COMPAT_VARYING vec4 t6;
+COMPAT_VARYING vec4 t7;
+
+uniform mat4 MVPMatrix;
+uniform int FrameDirection;
+uniform int FrameCount;
+uniform COMPAT_PRECISION vec2 OutputSize;
+uniform COMPAT_PRECISION vec2 TextureSize;
+uniform COMPAT_PRECISION vec2 InputSize;
+
+// vertex 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;
+ COL0 = COLOR;
+ TEX0.xy = TexCoord.xy;
+ vec2 ps = vec2(SourceSize.z, SourceSize.w);
+ float dx = ps.x;
+ float dy = ps.y;
+
+ // A1 B1 C1
+ // A0 A B C C4
+ // D0 D E F F4
+ // G0 G H I I4
+ // G5 H5 I5
+
+ t1 = vTexCoord.xxxy + vec4( -dx, 0.0, dx,-2.0*dy); // A1 B1 C1
+ t2 = vTexCoord.xxxy + vec4( -dx, 0.0, dx, -dy); // A B C
+ t3 = vTexCoord.xxxy + vec4( -dx, 0.0, dx, 0.0); // D E F
+ t4 = vTexCoord.xxxy + vec4( -dx, 0.0, dx, dy); // G H I
+ t5 = vTexCoord.xxxy + vec4( -dx, 0.0, dx, 2.0*dy); // G5 H5 I5
+ t6 = vTexCoord.xyyy + vec4(-2.0*dx,-dy, 0.0, dy); // A0 D0 G0
+ t7 = vTexCoord.xyyy + vec4( 2.0*dx,-dy, 0.0, dy); // C4 F4 I4
+}
+
+#elif defined(FRAGMENT)
+
+#if __VERSION__ >= 130
+#define COMPAT_VARYING in
+#define COMPAT_TEXTURE texture
+out vec4 FragColor;
+#else
+#define COMPAT_VARYING varying
+#define FragColor gl_FragColor
+#define COMPAT_TEXTURE texture2D
+#endif
+
+#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
+
+uniform int FrameDirection;
+uniform int FrameCount;
+uniform COMPAT_PRECISION vec2 OutputSize;
+uniform COMPAT_PRECISION vec2 TextureSize;
+uniform COMPAT_PRECISION vec2 InputSize;
+uniform sampler2D Texture;
+COMPAT_VARYING vec4 TEX0;
+COMPAT_VARYING vec4 t1;
+COMPAT_VARYING vec4 t2;
+COMPAT_VARYING vec4 t3;
+COMPAT_VARYING vec4 t4;
+COMPAT_VARYING vec4 t5;
+COMPAT_VARYING vec4 t6;
+COMPAT_VARYING vec4 t7;
+
+// fragment compatibility #defines
+#define Source Texture
+#define vTexCoord TEX0.xy
+#define texture(c, d) COMPAT_TEXTURE(c, d)
+#define SourceSize vec4(TextureSize, 1.0 / TextureSize) //either TextureSize or InputSize
+#define outsize vec4(OutputSize, 1.0 / OutputSize)
+
+void main()
+{
+vec2 f = fract(vTexCoord.xy * SourceSize.xy);
+
+ //---------------------------------------
+ // Input Pixel Mapping: 20|21|22|23|24
+ // 19|06|07|08|09
+ // 18|05|00|01|10
+ // 17|04|03|02|11
+ // 16|15|14|13|12
+
+ vec3 src[25];
+
+ src[21] = texture(Source, t1.xw).rgb;
+ src[22] = texture(Source, t1.yw).rgb;
+ src[23] = texture(Source, t1.zw).rgb;
+ src[ 6] = texture(Source, t2.xw).rgb;
+ src[ 7] = texture(Source, t2.yw).rgb;
+ src[ 8] = texture(Source, t2.zw).rgb;
+ src[ 5] = texture(Source, t3.xw).rgb;
+ src[ 0] = texture(Source, t3.yw).rgb;
+ src[ 1] = texture(Source, t3.zw).rgb;
+ src[ 4] = texture(Source, t4.xw).rgb;
+ src[ 3] = texture(Source, t4.yw).rgb;
+ src[ 2] = texture(Source, t4.zw).rgb;
+ src[15] = texture(Source, t5.xw).rgb;
+ src[14] = texture(Source, t5.yw).rgb;
+ src[13] = texture(Source, t5.zw).rgb;
+ src[19] = texture(Source, t6.xy).rgb;
+ src[18] = texture(Source, t6.xz).rgb;
+ src[17] = texture(Source, t6.xw).rgb;
+ src[ 9] = texture(Source, t7.xy).rgb;
+ src[10] = texture(Source, t7.xz).rgb;
+ src[11] = texture(Source, t7.xw).rgb;
+
+ float v[9];
+ v[0] = reduce(src[0]);
+ v[1] = reduce(src[1]);
+ v[2] = reduce(src[2]);
+ v[3] = reduce(src[3]);
+ v[4] = reduce(src[4]);
+ v[5] = reduce(src[5]);
+ v[6] = reduce(src[6]);
+ v[7] = reduce(src[7]);
+ v[8] = reduce(src[8]);
+
+ ivec4 blendResult = ivec4(BLEND_NONE);
+
+ // Preprocess corners
+ // Pixel Tap Mapping: --|--|--|--|--
+ // --|--|07|08|--
+ // --|05|00|01|10
+ // --|04|03|02|11
+ // --|--|14|13|--
+ // Corner (1, 1)
+ if ( ((v[0] == v[1] && v[3] == v[2]) || (v[0] == v[3] && v[1] == v[2])) == false)
+ {
+ float dist_03_01 = DistYCbCr(src[ 4], src[ 0]) + DistYCbCr(src[ 0], src[ 8]) + DistYCbCr(src[14], src[ 2]) + DistYCbCr(src[ 2], src[10]) + (4.0 * DistYCbCr(src[ 3], src[ 1]));
+ float dist_00_02 = DistYCbCr(src[ 5], src[ 3]) + DistYCbCr(src[ 3], src[13]) + DistYCbCr(src[ 7], src[ 1]) + DistYCbCr(src[ 1], src[11]) + (4.0 * DistYCbCr(src[ 0], src[ 2]));
+ bool dominantGradient = (DOMINANT_DIRECTION_THRESHOLD * dist_03_01) < dist_00_02;
+ blendResult[2] = ((dist_03_01 < dist_00_02) && (v[0] != v[1]) && (v[0] != v[3])) ? ((dominantGradient) ? BLEND_DOMINANT : BLEND_NORMAL) : BLEND_NONE;
+ }
+
+ // Pixel Tap Mapping: --|--|--|--|--
+ // --|06|07|--|--
+ // 18|05|00|01|--
+ // 17|04|03|02|--
+ // --|15|14|--|--
+ // Corner (0, 1)
+ if ( ((v[5] == v[0] && v[4] == v[3]) || (v[5] == v[4] && v[0] == v[3])) == false)
+ {
+ float dist_04_00 = DistYCbCr(src[17], src[ 5]) + DistYCbCr(src[ 5], src[ 7]) + DistYCbCr(src[15], src[ 3]) + DistYCbCr(src[ 3], src[ 1]) + (4.0 * DistYCbCr(src[ 4], src[ 0]));
+ float dist_05_03 = DistYCbCr(src[18], src[ 4]) + DistYCbCr(src[ 4], src[14]) + DistYCbCr(src[ 6], src[ 0]) + DistYCbCr(src[ 0], src[ 2]) + (4.0 * DistYCbCr(src[ 5], src[ 3]));
+ bool dominantGradient = (DOMINANT_DIRECTION_THRESHOLD * dist_05_03) < dist_04_00;
+ blendResult[3] = ((dist_04_00 > dist_05_03) && (v[0] != v[5]) && (v[0] != v[3])) ? ((dominantGradient) ? BLEND_DOMINANT : BLEND_NORMAL) : BLEND_NONE;
+ }
+
+ // Pixel Tap Mapping: --|--|22|23|--
+ // --|06|07|08|09
+ // --|05|00|01|10
+ // --|--|03|02|--
+ // --|--|--|--|--
+ // Corner (1, 0)
+ if ( ((v[7] == v[8] && v[0] == v[1]) || (v[7] == v[0] && v[8] == v[1])) == false)
+ {
+ float dist_00_08 = DistYCbCr(src[ 5], src[ 7]) + DistYCbCr(src[ 7], src[23]) + DistYCbCr(src[ 3], src[ 1]) + DistYCbCr(src[ 1], src[ 9]) + (4.0 * DistYCbCr(src[ 0], src[ 8]));
+ float dist_07_01 = DistYCbCr(src[ 6], src[ 0]) + DistYCbCr(src[ 0], src[ 2]) + DistYCbCr(src[22], src[ 8]) + DistYCbCr(src[ 8], src[10]) + (4.0 * DistYCbCr(src[ 7], src[ 1]));
+ bool dominantGradient = (DOMINANT_DIRECTION_THRESHOLD * dist_07_01) < dist_00_08;
+ blendResult[1] = ((dist_00_08 > dist_07_01) && (v[0] != v[7]) && (v[0] != v[1])) ? ((dominantGradient) ? BLEND_DOMINANT : BLEND_NORMAL) : BLEND_NONE;
+ }
+
+ // Pixel Tap Mapping: --|21|22|--|--
+ // 19|06|07|08|--
+ // 18|05|00|01|--
+ // --|04|03|--|--
+ // --|--|--|--|--
+ // Corner (0, 0)
+ if ( ((v[6] == v[7] && v[5] == v[0]) || (v[6] == v[5] && v[7] == v[0])) == false)
+ {
+ float dist_05_07 = DistYCbCr(src[18], src[ 6]) + DistYCbCr(src[ 6], src[22]) + DistYCbCr(src[ 4], src[ 0]) + DistYCbCr(src[ 0], src[ 8]) + (4.0 * DistYCbCr(src[ 5], src[ 7]));
+ float dist_06_00 = DistYCbCr(src[19], src[ 5]) + DistYCbCr(src[ 5], src[ 3]) + DistYCbCr(src[21], src[ 7]) + DistYCbCr(src[ 7], src[ 1]) + (4.0 * DistYCbCr(src[ 6], src[ 0]));
+ bool dominantGradient = (DOMINANT_DIRECTION_THRESHOLD * dist_05_07) < dist_06_00;
+ blendResult[0] = ((dist_05_07 < dist_06_00) && (v[0] != v[5]) && (v[0] != v[7])) ? ((dominantGradient) ? BLEND_DOMINANT : BLEND_NORMAL) : BLEND_NONE;
+ }
+
+ vec3 dst[36];
+ dst[ 0] = src[0];
+ dst[ 1] = src[0];
+ dst[ 2] = src[0];
+ dst[ 3] = src[0];
+ dst[ 4] = src[0];
+ dst[ 5] = src[0];
+ dst[ 6] = src[0];
+ dst[ 7] = src[0];
+ dst[ 8] = src[0];
+ dst[ 9] = src[0];
+ dst[10] = src[0];
+ dst[11] = src[0];
+ dst[12] = src[0];
+ dst[13] = src[0];
+ dst[14] = src[0];
+ dst[15] = src[0];
+ dst[16] = src[0];
+ dst[17] = src[0];
+ dst[18] = src[0];
+ dst[19] = src[0];
+ dst[20] = src[0];
+ dst[21] = src[0];
+ dst[22] = src[0];
+ dst[23] = src[0];
+ dst[24] = src[0];
+ dst[25] = src[0];
+ dst[26] = src[0];
+ dst[27] = src[0];
+ dst[28] = src[0];
+ dst[29] = src[0];
+ dst[30] = src[0];
+ dst[31] = src[0];
+ dst[32] = src[0];
+ dst[33] = src[0];
+ dst[34] = src[0];
+ dst[35] = src[0];
+
+ // Scale pixel
+ if (IsBlendingNeeded(blendResult) == true)
+ {
+ float dist_01_04 = DistYCbCr(src[1], src[4]);
+ float dist_03_08 = DistYCbCr(src[3], src[8]);
+ bool haveShallowLine = (STEEP_DIRECTION_THRESHOLD * dist_01_04 <= dist_03_08) && (v[0] != v[4]) && (v[5] != v[4]);
+ bool haveSteepLine = (STEEP_DIRECTION_THRESHOLD * dist_03_08 <= dist_01_04) && (v[0] != v[8]) && (v[7] != v[8]);
+ bool needBlend = (blendResult[2] != BLEND_NONE);
+ bool doLineBlend = ( blendResult[2] >= BLEND_DOMINANT ||
+ ((blendResult[1] != BLEND_NONE && !IsPixEqual(src[0], src[4])) ||
+ (blendResult[3] != BLEND_NONE && !IsPixEqual(src[0], src[8])) ||
+ (IsPixEqual(src[4], src[3]) && IsPixEqual(src[3], src[2]) && IsPixEqual(src[2], src[1]) && IsPixEqual(src[1], src[8]) && IsPixEqual(src[0], src[2]) == false) ) == false );
+
+ vec3 blendPix = ( DistYCbCr(src[0], src[1]) <= DistYCbCr(src[0], src[3]) ) ? src[1] : src[3];
+ dst[10] = mix(dst[10], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 0.250 : 0.000);
+ dst[11] = mix(dst[11], blendPix, (needBlend && doLineBlend) ? ((haveSteepLine) ? 0.750 : ((haveShallowLine) ? 0.250 : 0.000)) : 0.000);
+ dst[12] = mix(dst[12], blendPix, (needBlend && doLineBlend) ? ((!haveShallowLine && !haveSteepLine) ? 0.500 : 1.000) : 0.000);
+ dst[13] = mix(dst[13], blendPix, (needBlend && doLineBlend) ? ((haveShallowLine) ? 0.750 : ((haveSteepLine) ? 0.250 : 0.000)) : 0.000);
+ dst[14] = mix(dst[14], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 0.250 : 0.000);
+ dst[25] = mix(dst[25], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 0.250 : 0.000);
+ dst[26] = mix(dst[26], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 0.750 : 0.000);
+ dst[27] = mix(dst[27], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 1.000 : 0.000);
+ dst[28] = mix(dst[28], blendPix, (needBlend) ? ((doLineBlend) ? ((haveSteepLine) ? 1.000 : ((haveShallowLine) ? 0.750 : 0.500)) : 0.05652034508) : 0.000);
+ dst[29] = mix(dst[29], blendPix, (needBlend) ? ((doLineBlend) ? 1.000 : 0.4236372243) : 0.000);
+ dst[30] = mix(dst[30], blendPix, (needBlend) ? ((doLineBlend) ? 1.000 : 0.9711013910) : 0.000);
+ dst[31] = mix(dst[31], blendPix, (needBlend) ? ((doLineBlend) ? 1.000 : 0.4236372243) : 0.000);
+ dst[32] = mix(dst[32], blendPix, (needBlend) ? ((doLineBlend) ? ((haveShallowLine) ? 1.000 : ((haveSteepLine) ? 0.750 : 0.500)) : 0.05652034508) : 0.000);
+ dst[33] = mix(dst[33], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 1.000 : 0.000);
+ dst[34] = mix(dst[34], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 0.750 : 0.000);
+ dst[35] = mix(dst[35], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 0.250 : 0.000);
+
+ dist_01_04 = DistYCbCr(src[7], src[2]);
+ dist_03_08 = DistYCbCr(src[1], src[6]);
+ haveShallowLine = (STEEP_DIRECTION_THRESHOLD * dist_01_04 <= dist_03_08) && (v[0] != v[2]) && (v[3] != v[2]);
+ haveSteepLine = (STEEP_DIRECTION_THRESHOLD * dist_03_08 <= dist_01_04) && (v[0] != v[6]) && (v[5] != v[6]);
+ needBlend = (blendResult[1] != BLEND_NONE);
+ doLineBlend = ( blendResult[1] >= BLEND_DOMINANT ||
+ !((blendResult[0] != BLEND_NONE && !IsPixEqual(src[0], src[2])) ||
+ (blendResult[2] != BLEND_NONE && !IsPixEqual(src[0], src[6])) ||
+ (IsPixEqual(src[2], src[1]) && IsPixEqual(src[1], src[8]) && IsPixEqual(src[8], src[7]) && IsPixEqual(src[7], src[6]) && !IsPixEqual(src[0], src[8])) ) );
+
+ dist_01_04 = DistYCbCr(src[7], src[2]);
+ dist_03_08 = DistYCbCr(src[1], src[6]);
+ haveShallowLine = (STEEP_DIRECTION_THRESHOLD * dist_01_04 <= dist_03_08) && (v[0] != v[2]) && (v[3] != v[2]);
+ haveSteepLine = (STEEP_DIRECTION_THRESHOLD * dist_03_08 <= dist_01_04) && (v[0] != v[6]) && (v[5] != v[6]);
+ needBlend = (blendResult[1] != BLEND_NONE);
+ doLineBlend = ( blendResult[1] >= BLEND_DOMINANT ||
+ !((blendResult[0] != BLEND_NONE && !IsPixEqual(src[0], src[2])) ||
+ (blendResult[2] != BLEND_NONE && !IsPixEqual(src[0], src[6])) ||
+ (IsPixEqual(src[2], src[1]) && IsPixEqual(src[1], src[8]) && IsPixEqual(src[8], src[7]) && IsPixEqual(src[7], src[6]) && !IsPixEqual(src[0], src[8])) ) );
+
+ blendPix = ( DistYCbCr(src[0], src[7]) <= DistYCbCr(src[0], src[1]) ) ? src[7] : src[1];
+ dst[ 7] = mix(dst[ 7], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 0.250 : 0.000);
+ dst[ 8] = mix(dst[ 8], blendPix, (needBlend && doLineBlend) ? ((haveSteepLine) ? 0.750 : ((haveShallowLine) ? 0.250 : 0.000)) : 0.000);
+ dst[ 9] = mix(dst[ 9], blendPix, (needBlend && doLineBlend) ? ((!haveShallowLine && !haveSteepLine) ? 0.500 : 1.000) : 0.000);
+ dst[10] = mix(dst[10], blendPix, (needBlend && doLineBlend) ? ((haveShallowLine) ? 0.750 : ((haveSteepLine) ? 0.250 : 0.000)) : 0.000);
+ dst[11] = mix(dst[11], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 0.250 : 0.000);
+ dst[20] = mix(dst[20], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 0.250 : 0.000);
+ dst[21] = mix(dst[21], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 0.750 : 0.000);
+ dst[22] = mix(dst[22], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 1.000 : 0.000);
+ dst[23] = mix(dst[23], blendPix, (needBlend) ? ((doLineBlend) ? ((haveSteepLine) ? 1.000 : ((haveShallowLine) ? 0.750 : 0.500)) : 0.05652034508) : 0.000);
+ dst[24] = mix(dst[24], blendPix, (needBlend) ? ((doLineBlend) ? 1.000 : 0.4236372243) : 0.000);
+ dst[25] = mix(dst[25], blendPix, (needBlend) ? ((doLineBlend) ? 1.000 : 0.9711013910) : 0.000);
+ dst[26] = mix(dst[26], blendPix, (needBlend) ? ((doLineBlend) ? 1.000 : 0.4236372243) : 0.000);
+ dst[27] = mix(dst[27], blendPix, (needBlend) ? ((doLineBlend) ? ((haveShallowLine) ? 1.000 : ((haveSteepLine) ? 0.750 : 0.500)) : 0.05652034508) : 0.000);
+ dst[28] = mix(dst[28], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 1.000 : 0.000);
+ dst[29] = mix(dst[29], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 0.750 : 0.000);
+ dst[30] = mix(dst[30], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 0.250 : 0.000);
+
+ dist_01_04 = DistYCbCr(src[5], src[8]);
+ dist_03_08 = DistYCbCr(src[7], src[4]);
+ haveShallowLine = (STEEP_DIRECTION_THRESHOLD * dist_01_04 <= dist_03_08) && (v[0] != v[8]) && (v[1] != v[8]);
+ haveSteepLine = (STEEP_DIRECTION_THRESHOLD * dist_03_08 <= dist_01_04) && (v[0] != v[4]) && (v[3] != v[4]);
+ needBlend = (blendResult[0] != BLEND_NONE);
+ doLineBlend = ( blendResult[0] >= BLEND_DOMINANT ||
+ !((blendResult[3] != BLEND_NONE && !IsPixEqual(src[0], src[8])) ||
+ (blendResult[1] != BLEND_NONE && !IsPixEqual(src[0], src[4])) ||
+ (IsPixEqual(src[8], src[7]) && IsPixEqual(src[7], src[6]) && IsPixEqual(src[6], src[5]) && IsPixEqual(src[5], src[4]) && !IsPixEqual(src[0], src[6])) ) );
+
+ blendPix = ( DistYCbCr(src[0], src[5]) <= DistYCbCr(src[0], src[7]) ) ? src[5] : src[7];
+ dst[ 4] = mix(dst[ 4], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 0.250 : 0.000);
+ dst[ 5] = mix(dst[ 5], blendPix, (needBlend && doLineBlend) ? ((haveSteepLine) ? 0.750 : ((haveShallowLine) ? 0.250 : 0.000)) : 0.000);
+ dst[ 6] = mix(dst[ 6], blendPix, (needBlend && doLineBlend) ? ((!haveShallowLine && !haveSteepLine) ? 0.500 : 1.000) : 0.000);
+ dst[ 7] = mix(dst[ 7], blendPix, (needBlend && doLineBlend) ? ((haveShallowLine) ? 0.750 : ((haveSteepLine) ? 0.250 : 0.000)) : 0.000);
+ dst[ 8] = mix(dst[ 8], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 0.250 : 0.000);
+ dst[35] = mix(dst[35], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 0.250 : 0.000);
+ dst[16] = mix(dst[16], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 0.750 : 0.000);
+ dst[17] = mix(dst[17], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 1.000 : 0.000);
+ dst[18] = mix(dst[18], blendPix, (needBlend) ? ((doLineBlend) ? ((haveSteepLine) ? 1.000 : ((haveShallowLine) ? 0.750 : 0.500)) : 0.05652034508) : 0.000);
+ dst[19] = mix(dst[19], blendPix, (needBlend) ? ((doLineBlend) ? 1.000 : 0.4236372243) : 0.000);
+ dst[20] = mix(dst[20], blendPix, (needBlend) ? ((doLineBlend) ? 1.000 : 0.9711013910) : 0.000);
+ dst[21] = mix(dst[21], blendPix, (needBlend) ? ((doLineBlend) ? 1.000 : 0.4236372243) : 0.000);
+ dst[22] = mix(dst[22], blendPix, (needBlend) ? ((doLineBlend) ? ((haveShallowLine) ? 1.000 : ((haveSteepLine) ? 0.750 : 0.500)) : 0.05652034508) : 0.000);
+ dst[23] = mix(dst[23], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 1.000 : 0.000);
+ dst[24] = mix(dst[24], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 0.750 : 0.000);
+ dst[25] = mix(dst[25], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 0.250 : 0.000);
+
+
+ dist_01_04 = DistYCbCr(src[3], src[6]);
+ dist_03_08 = DistYCbCr(src[5], src[2]);
+ haveShallowLine = (STEEP_DIRECTION_THRESHOLD * dist_01_04 <= dist_03_08) && (v[0] != v[6]) && (v[7] != v[6]);
+ haveSteepLine = (STEEP_DIRECTION_THRESHOLD * dist_03_08 <= dist_01_04) && (v[0] != v[2]) && (v[1] != v[2]);
+ needBlend = (blendResult[3] != BLEND_NONE);
+ doLineBlend = ( blendResult[3] >= BLEND_DOMINANT ||
+ !((blendResult[2] != BLEND_NONE && !IsPixEqual(src[0], src[6])) ||
+ (blendResult[0] != BLEND_NONE && !IsPixEqual(src[0], src[2])) ||
+ (IsPixEqual(src[6], src[5]) && IsPixEqual(src[5], src[4]) && IsPixEqual(src[4], src[3]) && IsPixEqual(src[3], src[2]) && !IsPixEqual(src[0], src[4])) ) );
+
+ blendPix = ( DistYCbCr(src[0], src[3]) <= DistYCbCr(src[0], src[5]) ) ? src[3] : src[5];
+ dst[13] = mix(dst[13], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 0.250 : 0.000);
+ dst[14] = mix(dst[14], blendPix, (needBlend && doLineBlend) ? ((haveSteepLine) ? 0.750 : ((haveShallowLine) ? 0.250 : 0.000)) : 0.000);
+ dst[15] = mix(dst[15], blendPix, (needBlend && doLineBlend) ? ((!haveShallowLine && !haveSteepLine) ? 0.500 : 1.000) : 0.000);
+ dst[ 4] = mix(dst[ 4], blendPix, (needBlend && doLineBlend) ? ((haveShallowLine) ? 0.750 : ((haveSteepLine) ? 0.250 : 0.000)) : 0.000);
+ dst[ 5] = mix(dst[ 5], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 0.250 : 0.000);
+ dst[30] = mix(dst[30], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 0.250 : 0.000);
+ dst[31] = mix(dst[31], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 0.750 : 0.000);
+ dst[32] = mix(dst[32], blendPix, (needBlend && doLineBlend && haveSteepLine) ? 1.000 : 0.000);
+ dst[33] = mix(dst[33], blendPix, (needBlend) ? ((doLineBlend) ? ((haveSteepLine) ? 1.000 : ((haveShallowLine) ? 0.750 : 0.500)) : 0.05652034508) : 0.000);
+ dst[34] = mix(dst[34], blendPix, (needBlend) ? ((doLineBlend) ? 1.000 : 0.4236372243) : 0.000);
+ dst[35] = mix(dst[35], blendPix, (needBlend) ? ((doLineBlend) ? 1.000 : 0.9711013910) : 0.000);
+ dst[16] = mix(dst[16], blendPix, (needBlend) ? ((doLineBlend) ? 1.000 : 0.4236372243) : 0.000);
+ dst[17] = mix(dst[17], blendPix, (needBlend) ? ((doLineBlend) ? ((haveShallowLine) ? 1.000 : ((haveSteepLine) ? 0.750 : 0.500)) : 0.05652034508) : 0.000);
+ dst[18] = mix(dst[18], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 1.000 : 0.000);
+ dst[19] = mix(dst[19], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 0.750 : 0.000);
+ dst[20] = mix(dst[20], blendPix, (needBlend && doLineBlend && haveShallowLine) ? 0.250 : 0.000);
+
+ }
+
+ vec3 res = mix( mix( mix( mix( mix( mix(dst[20], dst[21], step(one_sixth, f.x) ), dst[22], step(two_sixth, f.x) ), mix( mix(dst[23], dst[24], step(four_sixth, f.x) ), dst[25], step(five_sixth, f.x) ), step(0.50, f.x) ),
+ mix( mix( mix(dst[19], dst[ 6], step(one_sixth, f.x) ), dst[ 7], step(two_sixth, f.x) ), mix( mix(dst[ 8], dst[ 9], step(four_sixth, f.x) ), dst[26], step(five_sixth, f.x) ), step(0.50, f.x) ), step(one_sixth, f.y) ),
+ mix( mix( mix(dst[18], dst[ 5], step(one_sixth, f.x) ), dst[ 0], step(two_sixth, f.x) ), mix( mix(dst[ 1], dst[10], step(four_sixth, f.x) ), dst[27], step(five_sixth, f.x) ), step(0.50, f.x) ), step(two_sixth, f.y) ),
+ mix( mix( mix( mix( mix(dst[17], dst[ 4], step(one_sixth, f.x) ), dst[ 3], step(two_sixth, f.x) ), mix( mix(dst[ 2], dst[11], step(four_sixth, f.x) ), dst[28], step(five_sixth, f.x) ), step(0.50, f.x) ),
+ mix( mix( mix(dst[16], dst[15], step(one_sixth, f.x) ), dst[14], step(two_sixth, f.x) ), mix( mix(dst[13], dst[12], step(four_sixth, f.x) ), dst[29], step(five_sixth, f.x) ), step(0.50, f.x) ), step(four_sixth, f.y) ),
+ mix( mix( mix(dst[35], dst[34], step(one_sixth, f.x) ), dst[33], step(two_sixth, f.x) ), mix( mix(dst[32], dst[31], step(four_sixth, f.x) ), dst[30], step(five_sixth, f.x) ), step(0.50, f.x) ), step(five_sixth, f.y) ),
+ step(0.50, f.y) );
+
+ FragColor = vec4(res, 1.0);
+}
+#endif