Add GBC color shader and presets

handheld/gbc-color.glsl

@@ -0,0 +1,121 @@
+/*
+   GBC Color Correction Shader
+   A shader that replicates the LCD dynamics from a Game Boy Color
+   Color values are derived from Gambatte's color correction implementation.
+
+   Based on Color Mangler
+   Author: hunterk
+   License: Public domain
+*/
+
+// Compatibility #ifdefs needed for parameters
+#ifdef GL_ES
+#define COMPAT_PRECISION mediump
+#else
+#define COMPAT_PRECISION
+#endif
+
+
+#define blr 0.0
+#define blg 0.0
+#define blb 0.0
+#define r 0.78824
+#define g 0.72941
+#define b 0.66667
+#define rg 0.00
+#define rb 0.18039
+#define gr 0.12157
+#define gb 0.12157
+#define br 0.05882
+#define bg 0.24314
+
+#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;
+
+uniform mat4 MVPMatrix;
+uniform COMPAT_PRECISION int FrameDirection;
+uniform COMPAT_PRECISION int FrameCount;
+uniform COMPAT_PRECISION vec2 OutputSize;
+uniform COMPAT_PRECISION vec2 TextureSize;
+uniform COMPAT_PRECISION vec2 InputSize;
+
+void main()
+{
+    gl_Position = MVPMatrix * VertexCoord;
+    COL0 = COLOR;
+    TEX0.xy = TexCoord.xy;
+}
+
+#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 COMPAT_PRECISION int FrameDirection;
+uniform COMPAT_PRECISION int FrameCount;
+uniform COMPAT_PRECISION vec2 OutputSize;
+uniform COMPAT_PRECISION vec2 TextureSize;
+uniform COMPAT_PRECISION vec2 InputSize;
+uniform sampler2D Texture;
+COMPAT_VARYING vec4 TEX0;
+
+// compatibility #defines
+#define Source Texture
+#define vTexCoord TEX0.xy
+
+#define SourceSize vec4(TextureSize, 1.0 / TextureSize) //either TextureSize or InputSize
+#define outsize vec4(OutputSize, 1.0 / OutputSize)
+
+void main()
+{
+   vec4 screen = COMPAT_TEXTURE(Source, vTexCoord);
+
+   //                r   g    b   black
+   mat4 color = mat4(r,  rg,  rb, 0.0,       //red channel
+                     gr,  g,   gb, 0.0,      //green channel
+                     br,  bg,  b,  0.0,      //blue channel
+                     blr, blg, blb,    0.0); //alpha channel; these numbers do nothing for our purposes.
+
+   screen = color * screen;
+   FragColor = screen;
+} 
+#endif

handheld/lcd-grid-v2-gbc-color-motionblur.glslp

@@ -0,0 +1,32 @@
+shaders = "3"
+
+shader0 = "../motionblur/shaders/motionblur-simple.glsl"
+filter_linear0 = "false"
+scale_type0 = "source"
+scale0 = "1.0"
+
+shader1 = "shaders/lcd-cgwg/lcd-grid-v2.glsl"
+filter_linear1 = "false"
+scale_type1 = "viewport"
+scale1 = "1.0"
+
+shader2 = "shaders/color/gbc-color.glsl"
+filter_linear2 = "false"
+scale_type2 = "source"
+scale2 = "1.0"
+
+parameters = "RSUBPIX_R;RSUBPIX_G;RSUBPIX_B;GSUBPIX_R;GSUBPIX_G;GSUBPIX_B;BSUBPIX_R;BSUBPIX_G;BSUBPIX_B;gain;gamma;blacklevel;ambient;BGR"
+RSUBPIX_R = "0.750000"
+RSUBPIX_G = "0.000000"
+RSUBPIX_B = "0.000000"
+GSUBPIX_R = "0.000000"
+GSUBPIX_G = "0.750000"
+GSUBPIX_B = "0.000000"
+BSUBPIX_R = "0.000000"
+BSUBPIX_G = "0.000000"
+BSUBPIX_B = "0.750000"
+gain = "1.500000"
+gamma = "2.200000"
+blacklevel = "0.000000"
+ambient = "0.000000"
+BGR = "1.000000"

handheld/lcd-grid-v2-gbc-color.glslp

@@ -0,0 +1,27 @@
+shaders = "2"
+
+shader0 = "shaders/lcd-cgwg/lcd-grid-v2.glsl"
+filter_linear0 = "false"
+scale_type0 = "viewport"
+scale0 = "1.0"
+
+shader1 = "shaders/color/gbc-color.glsl"
+filter_linear1 = "false"
+scale_type1 = "source"
+scale1 = "1.0"
+
+parameters = "RSUBPIX_R;RSUBPIX_G;RSUBPIX_B;GSUBPIX_R;GSUBPIX_G;GSUBPIX_B;BSUBPIX_R;BSUBPIX_G;BSUBPIX_B;gain;gamma;blacklevel;ambient;BGR"
+RSUBPIX_R = "0.750000"
+RSUBPIX_G = "0.000000"
+RSUBPIX_B = "0.000000"
+GSUBPIX_R = "0.000000"
+GSUBPIX_G = "0.750000"
+GSUBPIX_B = "0.000000"
+BSUBPIX_R = "0.000000"
+BSUBPIX_G = "0.000000"
+BSUBPIX_B = "0.750000"
+gain = "1.500000"
+gamma = "2.200000"
+blacklevel = "0.000000"
+ambient = "0.000000"
+BGR = "1.000000"

handheld/lcd-shader-gbc-color.glslp

@@ -0,0 +1,33 @@
+shaders = 5
+shader0 = shaders/lcd-shader/lcd-pass-0.glsl
+shader1 = shaders/lcd-shader/lcd-pass-1.glsl
+shader2 = shaders/lcd-shader/lcd-pass-2.glsl
+shader3 = shaders/lcd-shader/lcd-pass-3.glsl
+shader4 = shaders/color/gbc-color.glsl
+
+scale_type0 = viewport
+scale0 = 1
+
+scale_type1 = source
+scale1 = 1
+
+scale_type2 = source
+scale2 = 1
+
+scale_type3 = source
+scale3 = 1
+
+scale_type4 = source
+scale4 = 1
+
+filter_linear0 = false
+filter_linear1 = false
+filter_linear2 = false
+filter_linear3 = false
+filter_linear4 = false
+
+textures = BACKGROUND
+BACKGROUND = shaders/lcd-shader/background.png
+BACKGROUND_linear = true
+parameters = "display_gamma"
+display_gamma = "2.200000"

handheld/shaders/color/gbc-color.glsl

@@ -0,0 +1,121 @@
+/*
+   GBC Color Correction Shader
+   A shader that replicates the LCD dynamics from a Game Boy Color
+   Color values are derived from Gambatte's color correction implementation.
+
+   Based on Color Mangler
+   Author: hunterk
+   License: Public domain
+*/
+
+// Compatibility #ifdefs needed for parameters
+#ifdef GL_ES
+#define COMPAT_PRECISION mediump
+#else
+#define COMPAT_PRECISION
+#endif
+
+
+#define blr 0.0
+#define blg 0.0
+#define blb 0.0
+#define r 0.78824
+#define g 0.72941
+#define b 0.66667
+#define rg 0.00
+#define rb 0.18039
+#define gr 0.12157
+#define gb 0.12157
+#define br 0.05882
+#define bg 0.24314
+
+#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;
+
+uniform mat4 MVPMatrix;
+uniform COMPAT_PRECISION int FrameDirection;
+uniform COMPAT_PRECISION int FrameCount;
+uniform COMPAT_PRECISION vec2 OutputSize;
+uniform COMPAT_PRECISION vec2 TextureSize;
+uniform COMPAT_PRECISION vec2 InputSize;
+
+void main()
+{
+    gl_Position = MVPMatrix * VertexCoord;
+    COL0 = COLOR;
+    TEX0.xy = TexCoord.xy;
+}
+
+#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 COMPAT_PRECISION int FrameDirection;
+uniform COMPAT_PRECISION int FrameCount;
+uniform COMPAT_PRECISION vec2 OutputSize;
+uniform COMPAT_PRECISION vec2 TextureSize;
+uniform COMPAT_PRECISION vec2 InputSize;
+uniform sampler2D Texture;
+COMPAT_VARYING vec4 TEX0;
+
+// compatibility #defines
+#define Source Texture
+#define vTexCoord TEX0.xy
+
+#define SourceSize vec4(TextureSize, 1.0 / TextureSize) //either TextureSize or InputSize
+#define outsize vec4(OutputSize, 1.0 / OutputSize)
+
+void main()
+{
+   vec4 screen = COMPAT_TEXTURE(Source, vTexCoord);
+
+   //                r   g    b   black
+   mat4 color = mat4(r,  rg,  rb, 0.0,       //red channel
+                     gr,  g,   gb, 0.0,      //green channel
+                     br,  bg,  b,  0.0,      //blue channel
+                     blr, blg, blb,    0.0); //alpha channel; these numbers do nothing for our purposes.
+
+   screen = color * screen;
+   FragColor = screen;
+} 
+#endif

presets/retro-v2+gbc-color.glslp

@@ -0,0 +1,13 @@
+shaders = "2"
+
+shader0 = "../handheld/shaders/color/gbc-color.glsl"
+shader1 = "../retro/shaders/retro-v2.glsl"
+
+filter_linear0 = "false"
+scale_type0 = "source"
+scale0 = "1.000000"
+
+filter_linear1 = "false"
+
+parameters = "RETRO_PIXEL_SIZE"
+RETRO_PIXEL_SIZE = "0.840000"