From 7d8a3f204e62e37c317f8f086acac10afb558038 Mon Sep 17 00:00:00 2001 From: hunterk Date: Mon, 6 Mar 2017 15:42:24 -0600 Subject: [PATCH] add xbrz manual conversions --- xbrz/4xbrz-linear.glslp | 9 + xbrz/5xbrz-linear.glslp | 9 + xbrz/6xbrz-linear.glslp | 9 + xbrz/shaders/4xbrz.glsl | 434 +++++++++++++++++++++++++++++++++++ xbrz/shaders/5xbrz.glsl | 459 +++++++++++++++++++++++++++++++++++++ xbrz/shaders/6xbrz.glsl | 497 ++++++++++++++++++++++++++++++++++++++++ 6 files changed, 1417 insertions(+) create mode 100644 xbrz/4xbrz-linear.glslp create mode 100644 xbrz/5xbrz-linear.glslp create mode 100644 xbrz/6xbrz-linear.glslp create mode 100644 xbrz/shaders/4xbrz.glsl create mode 100644 xbrz/shaders/5xbrz.glsl create mode 100644 xbrz/shaders/6xbrz.glsl 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