add gradient rect to tinywl

Author: WillPower3309

include/scenefx/types/fx/gradient.h

@@ -7,10 +7,8 @@ struct gradient {
     float origin[2]; //  center of the gradient, { 0.5, 0.5 } for normal
     bool is_linear; // else is conic
     float should_blend;
-
     int count;
     float *colors;
 };
 
-
 #endif // TYPES_FX_GRADIENT_H

render/fx_renderer/gles2/shaders/gradient.frag

@@ -19,20 +19,20 @@ vec4 gradient(vec4 colors[LEN], int count, vec2 size, vec2 grad_box,
 		uv = vec2(uv.x * cos(rad) - uv.y * sin(rad),
 				uv.x * sin(rad) + uv.y * cos(rad));
 
-		uv = vec2(-atan(uv.y, uv.x)/3.14159265 * 0.5 + 0.5, 0.0);
+		uv = vec2(-atan(uv.y, uv.x) / 3.14159265 * 0.5 + 0.5, 0.0);
 		step = uv.x;
 	}
 
 	if (!should_blend) {
-		float smooth = 1.0/float(count);
-		int ind = int(step/smooth);
+		float smooth = 1.0 / float(count);
+		int ind = int(step / smooth);
 
 		return colors[ind];
 	}
 
-	float smooth = 1.0/float(count - 1);
-    int ind = int(step/smooth);
-    float at = float(ind)*smooth;
+	float smooth = 1.0 / float(count - 1);
+    int ind = int(step / smooth);
+    float at = float(ind) * smooth;
 
     vec4 color = colors[ind];
     if(ind > 0) color = mix(colors[ind - 1], color, smoothstep(at - smooth, at, step));

tinywl/tinywl.c

@@ -1145,22 +1145,25 @@ int main(int argc, char *argv[]) {
 
 	/* Add a bottom rect to demonstrate optimized blur */
 	float bottom_rect_color[4] = { 1, 1, 1, 1 };
-	wlr_scene_rect_create(server.layers.bottom_layer, 200, 200, bottom_rect_color);
-	/*
+	struct wlr_scene_rect *bottom_rect = wlr_scene_rect_create(server.layers.bottom_layer,
+			200, 200, bottom_rect_color);
 	wlr_scene_rect_set_gradient(
 		bottom_rect,
 		(struct gradient) {
 			.degree = 0.0,
 			.range = (struct wlr_box) {
+				.x = 0,
+				.y = 0,
+				.width = 200,
+				.height = 200,
 			},
-			.origin = {},
+			.origin = { 0.5, 0.5 },
 			.is_linear = true,
 			.should_blend = true,
-			.count = 0,
-			.colors = {},
+			.count = 1,
+			.colors = bottom_rect_color,
 		}
 	);
-	*/
 
 	/* Set the size later */
 	server.layers.blur_layer = wlr_scene_optimized_blur_create(&server.scene->tree, 0, 0);