miscellaneous shader changes

Since sequence resolution is provided to the nodes now, it no longer needs to be a global in the shaders
Removed some unused shaders
Added default params to ShaderCode to allow skipping types that aren't used

app/shaders/blur.frag

@@ -4,8 +4,8 @@ uniform float radius_in;
 uniform bool horiz_in;
 uniform bool vert_in;
 uniform bool repeat_edge_pixels_in;
+uniform vec2 resolution_in;
 
-uniform vec2 ove_resolution;
 uniform int ove_iteration;
 
 in vec2 ove_texcoord;
@@ -107,9 +107,9 @@ void main(void) {
 
         vec2 pixel_coord = ove_texcoord;
         if (mode == MODE_HORIZONTAL) {
-            pixel_coord.x += i / ove_resolution.x;
+            pixel_coord.x += i / resolution_in.x;
         } else if (mode == MODE_VERTICAL) {
-            pixel_coord.y += i / ove_resolution.y;
+            pixel_coord.y += i / resolution_in.y;
         }
 
         if (repeat_edge_pixels_in

app/shaders/colorgradient.frag

@@ -1,26 +0,0 @@
-// Inputs
-uniform int orientation;
-uniform vec3 color_a;
-uniform vec3 color_b;
-
-// Standard inputs
-uniform vec2 ove_resolution;
-
-in vec2 ove_texcoord;
-
-out vec4 fragColor;
-
-void main(void) {
-    float t;
-
-    // This very roughly conforms to Qt::Orientation
-    if (orientation == 1) {
-        // Horizontal orientation
-        t = ove_texcoord.x;
-    } else {
-        // Vertical orientation
-        t = 1.0 - ove_texcoord.y;
-    }
-
-    fragColor = vec4(mix(color_a, color_b, t), 1.0);
-}

app/shaders/colorwheel.frag

@@ -1,92 +0,0 @@
-// Custom inputs
-uniform float hsv_value;
-
-// Standard inputs
-uniform vec2 ove_resolution;
-
-in vec2 ove_texcoord;
-
-out vec4 fragColor;
-
-// Color wheel uses PI
-#define M_PI 3.1415926535897932384626433832795
-
-vec3 hsv_to_rgb(float H, float S, float V) {
-    float C = S * V;
-    float X = C * (1.0 - abs(mod(H / 60.0, 2.0) - 1.0));
-    float m = V - C;
-    float Rs, Gs, Bs;
-
-    if(H >= 0.0 && H < 60.0) {
-        Rs = C;
-        Gs = X;
-        Bs = 0.0; 
-    }
-    else if(H >= 60.0 && H < 120.0) {   
-        Rs = X;
-        Gs = C;
-        Bs = 0.0; 
-    }
-    else if(H >= 120.0 && H < 180.0) {
-        Rs = 0.0;
-        Gs = C;
-        Bs = X; 
-    }
-    else if(H >= 180.0 && H < 240.0) {
-        Rs = 0.0;
-        Gs = X;
-        Bs = C; 
-    }
-    else if(H >= 240.0 && H < 300.0) {
-        Rs = X;
-        Gs = 0.0;
-        Bs = C; 
-    }
-    else {
-        Rs = C;
-        Gs = 0.0;
-        Bs = X; 
-    }
-
-    return vec3(Rs + m, Gs + m, Bs + m);
-}
-
-void main(void) {
-    vec2 center = vec2(0.5, 0.5);
-    float radius = 0.5;
-
-    vec2 flipped_texcoord = vec2(ove_texcoord.x, (1.0 - ove_texcoord.y));
-
-    // Calculate scale
-    if (ove_resolution.x != ove_resolution.y) {
-        // Scale around center
-        flipped_texcoord -= vec2(0.5, 0.5);
-
-        if (ove_resolution.x > ove_resolution.y) {
-            flipped_texcoord.x *= ove_resolution.x / ove_resolution.y;
-        } else {
-            flipped_texcoord.y *= ove_resolution.y / ove_resolution.x;
-        }
-        
-        flipped_texcoord += vec2(0.5, 0.5);
-    }
-
-    float dist = distance(flipped_texcoord, center);
-
-    if (dist <= radius) {
-        float opposite = flipped_texcoord.y - center.y;
-        float adjacent = flipped_texcoord.x - center.x;
-
-        float hue = atan(opposite, adjacent) * 180.0 / M_PI + 180.0;
-        float sat = dist / radius;
-
-        // Extremely simple antialiasing, we taper off the edges between (radius) and (radius - 1)
-        float pixel_radius = min(ove_resolution.x, ove_resolution.y) * 0.5;
-        float pixel_dist = (pixel_radius / radius) * dist;
-        float alpha = min((pixel_radius - pixel_dist), 1.0);
-
-        fragColor = vec4(hsv_to_rgb(hue, sat, hsv_value), alpha);
-    } else {
-        fragColor = vec4(0.0);
-    }
-}

app/shaders/crop.frag

@@ -0,0 +1,55 @@
+// Input variables
+uniform sampler2D tex_in;
+uniform float left_in;
+uniform float top_in;
+uniform float right_in;
+uniform float bottom_in;
+uniform float feather_in;
+uniform vec2 resolution_in;
+
+// Input texture coordinate
+in vec2 ove_texcoord;
+
+// Output color
+out vec4 fragColor;
+
+void main() {
+    float multiplier = 1.0;
+
+    vec2 feather_normalized = vec2(feather_in / resolution_in.x, feather_in / resolution_in.y);
+    vec2 feather_normalized_half = feather_normalized * 0.5;
+
+    // Calculate left cropping
+    float left_adjustment;
+    float right_adjustment;
+    float top_adjustment;
+    float bottom_adjustment;
+
+    if (feather_in == 0.0) {
+        if (ove_texcoord.x < left_in
+            || ove_texcoord.x > (1.0-right_in)
+            || ove_texcoord.y < (top_in)
+            || ove_texcoord.y > (1.0-bottom_in)) {
+            multiplier = 0.0;
+        }
+    } else {
+        float left_adjustment = clamp((ove_texcoord.x - (left_in - feather_normalized.x*(1.0-left_in))) / feather_normalized.x, 0.0, 1.0);
+        multiplier *= left_adjustment;
+
+        float right_adjustment = 1.0-clamp((ove_texcoord.x - ((1.0-right_in) - feather_normalized.x*(right_in))) / feather_normalized.x, 0.0, 1.0);
+        multiplier *= right_adjustment;
+
+        float top_adjustment = clamp((ove_texcoord.y - (top_in - feather_normalized.y*(1.0-top_in))) / feather_normalized.y, 0.0, 1.0);
+        multiplier *= top_adjustment;
+
+        float bottom_adjustment = 1.0-clamp((ove_texcoord.y - ((1.0-bottom_in) - feather_normalized.y*(bottom_in))) / feather_normalized.y, 0.0, 1.0);
+        multiplier *= bottom_adjustment;
+    }
+
+    if (multiplier > 0.0) {
+        vec4 color = texture(tex_in, ove_texcoord) * multiplier;
+        fragColor = color;
+    } else {
+        fragColor = vec4(0.0);
+    }
+}

app/shaders/deinterlace.frag

@@ -1,5 +1,6 @@
 uniform sampler2D ove_maintex;
-uniform vec2 ove_resolution;
+
+uniform vec2 resolution_in;
 
 in vec2 ove_texcoord;
 
@@ -11,9 +12,9 @@ void main() {
     // A very basic deinterlace that halves the vertical
     // resolution and linearly interpolates the two fields
     // by reading the texture coord between them.
-    float half_vert = round(ove_resolution.y / 2.0);
+    float half_vert = round(resolution_in.y / 2.0);
     using_texcoord.y = (round(using_texcoord.y * half_vert) + 0.25) / half_vert;
 
-    vec4 color = %1(texture(ove_maintex, using_texcoord));
+    vec4 color = texture(ove_maintex, using_texcoord);
     fragColor = color;
 }

app/shaders/polygon.frag

@@ -2,7 +2,7 @@ uniform vec2[256] points_in;
 uniform int points_in_count;
 uniform vec4 color_in;
 
-uniform vec2 ove_resolution;
+uniform vec2 resolution_in;
 
 in vec2 ove_texcoord;
 
@@ -34,7 +34,7 @@ bool pnpoly(vec2 p) {
 }
 
 void main(void) {
-    if (points_in_count > 0 && pnpoly(ove_texcoord * ove_resolution)) {
+    if (points_in_count > 0 && pnpoly(ove_texcoord * resolution_in)) {
         fragColor = color_in;
     } else {
         fragColor = vec4(0.0, 0.0, 0.0, 0.0);

app/shaders/rgbwaveform.vert

@@ -1,5 +1,4 @@
 uniform float waveform_scale;
-uniform vec2 ove_resolution;
 
 in vec4 a_position;
 in vec2 a_texcoord;
@@ -24,4 +23,4 @@ void main() {
 
     gl_Position = transform * a_position;
     ove_texcoord = a_texcoord;
-}
+}

app/shaders/stroke.frag

@@ -4,9 +4,9 @@ uniform vec4 color_in;
 uniform float radius_in;
 uniform float opacity_in;
 uniform bool inner_in;
+uniform vec2 resolution_in;
 
 // Standard inputs
-uniform vec2 ove_resolution;
 uniform int ove_iteration;
 
 in vec2 ove_texcoord;
@@ -32,10 +32,10 @@ void main(void) {
 
     // Loop over box
     for (float i=-radius + 0.5; i<=radius; i += 2.0) {
-        float x_coord = i / ove_resolution.x;
+        float x_coord = i / resolution_in.x;
 
         for (float j=-radius + 0.5; j<=radius; j += 2.0) {
-            float y_coord = j / ove_resolution.y;
+            float y_coord = j / resolution_in.y;
 
             if (abs(length(vec2(i, j))) < radius) {
                 // Get pixel here