make shaders cleaner

1 files changed, 73 insertions, 387 deletions

diff --git a/src/render/Shaders.hpp b/src/render/Shaders.hpp
index 2dbbee3f..d01e7775 100644
--- a/src/render/Shaders.hpp
+++ b/src/render/Shaders.hpp
@@ -2,45 +2,18 @@
 
 #include <string>
 
-inline const std::string QUADVERTSRC = R"#(
-uniform mat3 proj;
-uniform vec4 color;
-attribute vec2 pos;
-attribute vec2 texcoord;
-varying vec4 v_color;
-varying vec2 v_texcoord;
-
-void main() {
-    gl_Position = vec4(proj * vec3(pos, 1.0), 1.0);
-    v_color = color;
-    v_texcoord = texcoord;
-})#";
-
-inline const std::string QUADFRAGSRC = R"#(
-precision mediump float;
-varying vec4 v_color;
-varying vec2 v_texcoord;
-
-uniform vec2 topLeft;
-uniform vec2 bottomRight;
-uniform vec2 fullSize;
-uniform float radius;
-
-uniform int primitiveMultisample;
-
-void main() {
-	if (radius == 0.0) {
-		gl_FragColor = v_color;
-		return;
-	}
-
-    vec2 pixCoord = fullSize * v_texcoord;
-
-	if (pixCoord[0] < topLeft[0]) {
+inline static constexpr auto ROUNDED_SHADER_FUNC = [](const std::string colorVarName) -> std::string {
+    return R"#(
+		if (pixCoord[0] < topLeft[0]) {
 		// we're close left
 		if (pixCoord[1] < topLeft[1]) {
 			// top
 
+			if (ignoreCorners == 1) {
+				discard;
+				return;
+			}
+
 			float topLeftDistance = distance(topLeft, pixCoord);
 
 			if (topLeftDistance > radius - 1.0) {
@@ -61,13 +34,18 @@ void main() {
 
 					distances = distances / 4.0;
 
-					gl_FragColor = v_color * distances;
+					gl_FragColor = )#" + colorVarName + R"#( * distances;
 					return;
 				}
 			}
 		} else if (pixCoord[1] > bottomRight[1]) {
 			// bottom
 
+			if (ignoreCorners == 1) {
+				discard;
+				return;
+			}
+
 			float topLeftDistance = distance(vec2(topLeft[0], bottomRight[1]), pixCoord);
 
 			if (topLeftDistance > radius - 1.0) {
@@ -88,7 +66,7 @@ void main() {
 
 					distances = distances / 4.0;
 
-					gl_FragColor = v_color * distances;
+					gl_FragColor = )#" + colorVarName + R"#( * distances;
 					return;
 				}
 			}
@@ -99,6 +77,11 @@ void main() {
 		if (pixCoord[1] < topLeft[1]) {
 			// top
 
+			if (ignoreCorners == 1) {
+				discard;
+				return;
+			}
+
 			float topLeftDistance = distance(vec2(bottomRight[0], topLeft[1]), pixCoord);
 
 			if (topLeftDistance > radius - 1.0) {
@@ -119,13 +102,18 @@ void main() {
 
 					distances = distances / 4.0;
 
-					gl_FragColor = v_color * distances;
+					gl_FragColor = )#" + colorVarName + R"#( * distances;
 					return;
 				}
 			}
 		} else if (pixCoord[1] > bottomRight[1]) {
 			// bottom
 
+			if (ignoreCorners == 1) {
+				discard;
+				return;
+			}
+
 			float topLeftDistance = distance(bottomRight, pixCoord);
 
 			if (topLeftDistance > radius - 1.0) {
@@ -146,12 +134,51 @@ void main() {
 
 					distances = distances / 4.0;
 
-					gl_FragColor = v_color * distances;
+					gl_FragColor = )#" + colorVarName + R"#( * distances;
 					return;
 				}
 			}
 		}
 	}
+	)#";
+};
+
+inline const std::string QUADVERTSRC = R"#(
+uniform mat3 proj;
+uniform vec4 color;
+attribute vec2 pos;
+attribute vec2 texcoord;
+varying vec4 v_color;
+varying vec2 v_texcoord;
+
+void main() {
+    gl_Position = vec4(proj * vec3(pos, 1.0), 1.0);
+    v_color = color;
+    v_texcoord = texcoord;
+})#";
+
+inline const std::string QUADFRAGSRC = R"#(
+precision mediump float;
+varying vec4 v_color;
+varying vec2 v_texcoord;
+
+uniform vec2 topLeft;
+uniform vec2 bottomRight;
+uniform vec2 fullSize;
+uniform float radius;
+
+uniform int primitiveMultisample;
+uniform int ignoreCorners;
+
+void main() {
+	if (radius == 0.0) {
+		gl_FragColor = v_color;
+		return;
+	}
+
+    vec2 pixCoord = fullSize * v_texcoord;
+
+	)#" + ROUNDED_SHADER_FUNC("v_color") + R"#(
 
 	gl_FragColor = v_color;
 })#";
@@ -181,6 +208,7 @@ uniform float radius;
 uniform int discardOpaque;
 
 uniform int primitiveMultisample;
+uniform int ignoreCorners;
 
 void main() {
 
@@ -193,122 +221,8 @@ void main() {
 
 	vec2 pixCoord = fullSize * v_texcoord;
 
-	if (pixCoord[0] < topLeft[0]) {
-		// we're close left
-		if (pixCoord[1] < topLeft[1]) {
-			// top
-
-			float topLeftDistance = distance(topLeft, pixCoord);
-
-			if (topLeftDistance > radius - 1.0) {
-				if (primitiveMultisample == 0 && topLeftDistance > radius) {
-					discard;
-					return;
-				} else if (primitiveMultisample == 1) {
-					float distances = 0.0;
-					if (distance(topLeft, pixCoord + vec2(0.25, 0.25)) < radius) { distances = distances + 1.0; }
-					if (distance(topLeft, pixCoord + vec2(0.75, 0.25)) < radius) { distances = distances + 1.0; }
-					if (distance(topLeft, pixCoord + vec2(0.25, 0.75)) < radius) { distances = distances + 1.0; }
-					if (distance(topLeft, pixCoord + vec2(0.75, 0.75)) < radius) { distances = distances + 1.0; }
-
-					if (distances == 0.0) {
-						discard;
-						return;
-					}
-
-					distances = distances / 4.0;
-
-					gl_FragColor = pixColor * distances;
-					return;
-				}
-			}
-		} else if (pixCoord[1] > bottomRight[1]) {
-			// bottom
-
-			float topLeftDistance = distance(vec2(topLeft[0], bottomRight[1]), pixCoord);
-
-			if (topLeftDistance > radius - 1.0) {
-				if (primitiveMultisample == 0 && topLeftDistance > radius) {
-					discard;
-					return;
-				} else if (primitiveMultisample == 1) {
-					float distances = 0.0;
-					if (distance(vec2(topLeft[0], bottomRight[1]), pixCoord + vec2(0.25, 0.25)) < radius) { distances = distances + 1.0; }
-					if (distance(vec2(topLeft[0], bottomRight[1]), pixCoord + vec2(0.75, 0.25)) < radius) { distances = distances + 1.0; }
-					if (distance(vec2(topLeft[0], bottomRight[1]), pixCoord + vec2(0.25, 0.75)) < radius) { distances = distances + 1.0; }
-					if (distance(vec2(topLeft[0], bottomRight[1]), pixCoord + vec2(0.75, 0.75)) < radius) { distances = distances + 1.0; }
-
-					if (distances == 0.0) {
-						discard;
-						return;
-					}
-
-					distances = distances / 4.0;
-
-					gl_FragColor = pixColor * distances;
-					return;
-				}
-			}
-		}
-	}
-	else if (pixCoord[0] > bottomRight[0]) {
-		// we're close right
-		if (pixCoord[1] < topLeft[1]) {
-			// top
-
-			float topLeftDistance = distance(vec2(bottomRight[0], topLeft[1]), pixCoord);
-
-			if (topLeftDistance > radius - 1.0) {
-				if (primitiveMultisample == 0 && topLeftDistance > radius) {
-					discard;
-					return;
-				} else if (primitiveMultisample == 1) {
-					float distances = 0.0;
-					if (distance(vec2(bottomRight[0], topLeft[1]), pixCoord + vec2(0.25, 0.25)) < radius) { distances = distances + 1.0; }
-					if (distance(vec2(bottomRight[0], topLeft[1]), pixCoord + vec2(0.75, 0.25)) < radius) { distances = distances + 1.0; }
-					if (distance(vec2(bottomRight[0], topLeft[1]), pixCoord + vec2(0.25, 0.75)) < radius) { distances = distances + 1.0; }
-					if (distance(vec2(bottomRight[0], topLeft[1]), pixCoord + vec2(0.75, 0.75)) < radius) { distances = distances + 1.0; }
-
-					if (distances == 0.0) {
-						discard;
-						return;
-					}
-
-					distances = distances / 4.0;
-
-					gl_FragColor = pixColor * distances;
-					return;
-				}
-			}
-		} else if (pixCoord[1] > bottomRight[1]) {
-			// bottom
-
-			float topLeftDistance = distance(bottomRight, pixCoord);
-
-			if (topLeftDistance > radius - 1.0) {
-				if (primitiveMultisample == 0 && topLeftDistance > radius) {
-					discard;
-					return;
-				} else if (primitiveMultisample == 1) {
-					float distances = 0.0;
-					if (distance(bottomRight, pixCoord + vec2(0.25, 0.25)) < radius) { distances = distances + 1.0; }
-					if (distance(bottomRight, pixCoord + vec2(0.75, 0.25)) < radius) { distances = distances + 1.0; }
-					if (distance(bottomRight, pixCoord + vec2(0.25, 0.75)) < radius) { distances = distances + 1.0; }
-					if (distance(bottomRight, pixCoord + vec2(0.75, 0.75)) < radius) { distances = distances + 1.0; }
-
-					if (distances == 0.0) {
-						discard;
-						return;
-					}
-
-					distances = distances / 4.0;
-
-					gl_FragColor = pixColor * distances;
-					return;
-				}
-			}
-		}
-	}
+	)#" + ROUNDED_SHADER_FUNC("pixColor") +
+                                          R"#(
 
 	gl_FragColor = pixColor * alpha;
 })#";
@@ -327,6 +241,7 @@ uniform float radius;
 uniform int discardOpaque;
 
 uniform int primitiveMultisample;
+uniform int ignoreCorners;
 
 void main() {
 
@@ -339,122 +254,7 @@ void main() {
 	
 	vec2 pixCoord = fullSize * v_texcoord;
 
-	if (pixCoord[0] < topLeft[0]) {
-		// we're close left
-		if (pixCoord[1] < topLeft[1]) {
-			// top
-
-			float topLeftDistance = distance(topLeft, pixCoord);
-
-			if (topLeftDistance > radius - 1.0) {
-				if (primitiveMultisample == 0 && topLeftDistance > radius) {
-					discard;
-					return;
-				} else if (primitiveMultisample == 1) {
-					float distances = 0.0;
-					if (distance(topLeft, pixCoord + vec2(0.25, 0.25)) < radius) { distances = distances + 1.0; }
-					if (distance(topLeft, pixCoord + vec2(0.75, 0.25)) < radius) { distances = distances + 1.0; }
-					if (distance(topLeft, pixCoord + vec2(0.25, 0.75)) < radius) { distances = distances + 1.0; }
-					if (distance(topLeft, pixCoord + vec2(0.75, 0.75)) < radius) { distances = distances + 1.0; }
-
-					if (distances == 0.0) {
-						discard;
-						return;
-					}
-
-					distances = distances / 4.0;
-
-					gl_FragColor = pixColor * distances;
-					return;
-				}
-			}
-		} else if (pixCoord[1] > bottomRight[1]) {
-			// bottom
-
-			float topLeftDistance = distance(vec2(topLeft[0], bottomRight[1]), pixCoord);
-
-			if (topLeftDistance > radius - 1.0) {
-				if (primitiveMultisample == 0 && topLeftDistance > radius) {
-					discard;
-					return;
-				} else if (primitiveMultisample == 1) {
-					float distances = 0.0;
-					if (distance(vec2(topLeft[0], bottomRight[1]), pixCoord + vec2(0.25, 0.25)) < radius) { distances = distances + 1.0; }
-					if (distance(vec2(topLeft[0], bottomRight[1]), pixCoord + vec2(0.75, 0.25)) < radius) { distances = distances + 1.0; }
-					if (distance(vec2(topLeft[0], bottomRight[1]), pixCoord + vec2(0.25, 0.75)) < radius) { distances = distances + 1.0; }
-					if (distance(vec2(topLeft[0], bottomRight[1]), pixCoord + vec2(0.75, 0.75)) < radius) { distances = distances + 1.0; }
-
-					if (distances == 0.0) {
-						discard;
-						return;
-					}
-
-					distances = distances / 4.0;
-
-					gl_FragColor = pixColor * distances;
-					return;
-				}
-			}
-		}
-	}
-	else if (pixCoord[0] > bottomRight[0]) {
-		// we're close right
-		if (pixCoord[1] < topLeft[1]) {
-			// top
-
-			float topLeftDistance = distance(vec2(bottomRight[0], topLeft[1]), pixCoord);
-
-			if (topLeftDistance > radius - 1.0) {
-				if (primitiveMultisample == 0 && topLeftDistance > radius) {
-					discard;
-					return;
-				} else if (primitiveMultisample == 1) {
-					float distances = 0.0;
-					if (distance(vec2(bottomRight[0], topLeft[1]), pixCoord + vec2(0.25, 0.25)) < radius) { distances = distances + 1.0; }
-					if (distance(vec2(bottomRight[0], topLeft[1]), pixCoord + vec2(0.75, 0.25)) < radius) { distances = distances + 1.0; }
-					if (distance(vec2(bottomRight[0], topLeft[1]), pixCoord + vec2(0.25, 0.75)) < radius) { distances = distances + 1.0; }
-					if (distance(vec2(bottomRight[0], topLeft[1]), pixCoord + vec2(0.75, 0.75)) < radius) { distances = distances + 1.0; }
-
-					if (distances == 0.0) {
-						discard;
-						return;
-					}
-
-					distances = distances / 4.0;
-
-					gl_FragColor = pixColor * distances;
-					return;
-				}
-			}
-		} else if (pixCoord[1] > bottomRight[1]) {
-			// bottom
-
-			float topLeftDistance = distance(bottomRight, pixCoord);
-
-			if (topLeftDistance > radius - 1.0) {
-				if (primitiveMultisample == 0 && topLeftDistance > radius) {
-					discard;
-					return;
-				} else if (primitiveMultisample == 1) {
-					float distances = 0.0;
-					if (distance(bottomRight, pixCoord + vec2(0.25, 0.25)) < radius) { distances = distances + 1.0; }
-					if (distance(bottomRight, pixCoord + vec2(0.75, 0.25)) < radius) { distances = distances + 1.0; }
-					if (distance(bottomRight, pixCoord + vec2(0.25, 0.75)) < radius) { distances = distances + 1.0; }
-					if (distance(bottomRight, pixCoord + vec2(0.75, 0.75)) < radius) { distances = distances + 1.0; }
-
-					if (distances == 0.0) {
-						discard;
-						return;
-					}
-
-					distances = distances / 4.0;
-
-					gl_FragColor = pixColor * distances;
-					return;
-				}
-			}
-		}
-	}
+	)#" + ROUNDED_SHADER_FUNC("pixColor") + R"#(
 
 	gl_FragColor = pixColor * alpha;
 })#";
@@ -522,6 +322,7 @@ uniform float radius;
 uniform int discardOpaque;
 
 uniform int primitiveMultisample;
+uniform int ignoreCorners;
 
 void main() {
 
@@ -534,122 +335,7 @@ void main() {
 
 	vec2 pixCoord = fullSize * v_texcoord;
 
-	if (pixCoord[0] < topLeft[0]) {
-		// we're close left
-		if (pixCoord[1] < topLeft[1]) {
-			// top
-
-			float topLeftDistance = distance(topLeft, pixCoord);
-
-			if (topLeftDistance > radius - 1.0) {
-				if (primitiveMultisample == 0 && topLeftDistance > radius) {
-					discard;
-					return;
-				} else if (primitiveMultisample == 1) {
-					float distances = 0.0;
-					if (distance(topLeft, pixCoord + vec2(0.25, 0.25)) < radius) { distances = distances + 1.0; }
-					if (distance(topLeft, pixCoord + vec2(0.75, 0.25)) < radius) { distances = distances + 1.0; }
-					if (distance(topLeft, pixCoord + vec2(0.25, 0.75)) < radius) { distances = distances + 1.0; }
-					if (distance(topLeft, pixCoord + vec2(0.75, 0.75)) < radius) { distances = distances + 1.0; }
-
-					if (distances == 0.0) {
-						discard;
-						return;
-					}
-
-					distances = distances / 4.0;
-
-					gl_FragColor = pixColor * distances;
-					return;
-				}
-			}
-		} else if (pixCoord[1] > bottomRight[1]) {
-			// bottom
-
-			float topLeftDistance = distance(vec2(topLeft[0], bottomRight[1]), pixCoord);
-
-			if (topLeftDistance > radius - 1.0) {
-				if (primitiveMultisample == 0 && topLeftDistance > radius) {
-					discard;
-					return;
-				} else if (primitiveMultisample == 1) {
-					float distances = 0.0;
-					if (distance(vec2(topLeft[0], bottomRight[1]), pixCoord + vec2(0.25, 0.25)) < radius) { distances = distances + 1.0; }
-					if (distance(vec2(topLeft[0], bottomRight[1]), pixCoord + vec2(0.75, 0.25)) < radius) { distances = distances + 1.0; }
-					if (distance(vec2(topLeft[0], bottomRight[1]), pixCoord + vec2(0.25, 0.75)) < radius) { distances = distances + 1.0; }
-					if (distance(vec2(topLeft[0], bottomRight[1]), pixCoord + vec2(0.75, 0.75)) < radius) { distances = distances + 1.0; }
-
-					if (distances == 0.0) {
-						discard;
-						return;
-					}
-
-					distances = distances / 4.0;
-
-					gl_FragColor = pixColor * distances;
-					return;
-				}
-			}
-		}
-	}
-	else if (pixCoord[0] > bottomRight[0]) {
-		// we're close right
-		if (pixCoord[1] < topLeft[1]) {
-			// top
-
-			float topLeftDistance = distance(vec2(bottomRight[0], topLeft[1]), pixCoord);
-
-			if (topLeftDistance > radius - 1.0) {
-				if (primitiveMultisample == 0 && topLeftDistance > radius) {
-					discard;
-					return;
-				} else if (primitiveMultisample == 1) {
-					float distances = 0.0;
-					if (distance(vec2(bottomRight[0], topLeft[1]), pixCoord + vec2(0.25, 0.25)) < radius) { distances = distances + 1.0; }
-					if (distance(vec2(bottomRight[0], topLeft[1]), pixCoord + vec2(0.75, 0.25)) < radius) { distances = distances + 1.0; }
-					if (distance(vec2(bottomRight[0], topLeft[1]), pixCoord + vec2(0.25, 0.75)) < radius) { distances = distances + 1.0; }
-					if (distance(vec2(bottomRight[0], topLeft[1]), pixCoord + vec2(0.75, 0.75)) < radius) { distances = distances + 1.0; }
-
-					if (distances == 0.0) {
-						discard;
-						return;
-					}
-
-					distances = distances / 4.0;
-
-					gl_FragColor = pixColor * distances;
-					return;
-				}
-			}
-		} else if (pixCoord[1] > bottomRight[1]) {
-			// bottom
-
-			float topLeftDistance = distance(bottomRight, pixCoord);
-
-			if (topLeftDistance > radius - 1.0) {
-				if (primitiveMultisample == 0 && topLeftDistance > radius) {
-					discard;
-					return;
-				} else if (primitiveMultisample == 1) {
-					float distances = 0.0;
-					if (distance(bottomRight, pixCoord + vec2(0.25, 0.25)) < radius) { distances = distances + 1.0; }
-					if (distance(bottomRight, pixCoord + vec2(0.75, 0.25)) < radius) { distances = distances + 1.0; }
-					if (distance(bottomRight, pixCoord + vec2(0.25, 0.75)) < radius) { distances = distances + 1.0; }
-					if (distance(bottomRight, pixCoord + vec2(0.75, 0.75)) < radius) { distances = distances + 1.0; }
-
-					if (distances == 0.0) {
-						discard;
-						return;
-					}
-
-					distances = distances / 4.0;
-
-					gl_FragColor = pixColor * distances;
-					return;
-				}
-			}
-		}
-	}
+	)#" + ROUNDED_SHADER_FUNC("pixColor") + R"#(
 
 	gl_FragColor = pixColor * alpha;
 })#";