From 7f0883b383b73af7bc68dcf8c2ee845c5eab5807 Mon Sep 17 00:00:00 2001
From: Erik Reider <35975961+ErikReider@users.noreply.github.com>
Date: Tue, 27 Feb 2024 18:05:58 +0100
Subject: [FX Renderer] Add blur (#30)

* Initial blur implementation

* Added additional blur effects from SwayFX

* Simplified blur pass functions to match the other pass functions

* Minor fixes

* Added support for optimized blur

* tinywl: Don't set decoration values every frame

* Updated public blur function docs

* Simplified blur buffer management

* Moved ignore transparent bool into a per buffer option

* Clip the scene_buffer when blur is enabled

* Added back corner and shadow checks in opaque_region function

* Renamed fx_render_blur_options to fx_render_blur_pass_options

* Fixed nits

* Removed unused fx_framebuffer_bind_wlr_fbo function

* Removed wlr_scene impl. Should be moved into future PR instead

* Made blur impl independent of wlr_scene

* Moved shader init back into fx_renderer.c

* Renamed fx_framebuffer_get_or_create_bufferless to fx_framebuffer_get_or_create_custom
---
 types/fx/blur_data.c | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 types/fx/blur_data.c

(limited to 'types/fx/blur_data.c')

diff --git a/types/fx/blur_data.c b/types/fx/blur_data.c
new file mode 100644
index 0000000..3aa618b
--- /dev/null
+++ b/types/fx/blur_data.c
@@ -0,0 +1,32 @@
+#include "scenefx/types/fx/blur_data.h"
+
+struct blur_data blur_data_get_default(void) {
+	return (struct blur_data) {
+		.radius = 5,
+		.num_passes = 3,
+		.noise = 0.02,
+		.brightness = 0.9,
+		.contrast = 0.9,
+		.saturation = 1.1,
+	};
+}
+
+bool blur_data_should_parameters_blur_effects(struct blur_data *blur_data) {
+	return blur_data->brightness != 1.0f
+		|| blur_data->saturation != 1.0f
+		|| blur_data->contrast != 1.0f
+		|| blur_data->noise > 0.0f;
+}
+
+bool blur_data_cmp(struct blur_data *a, struct blur_data *b) {
+	return a->radius == b->radius &&
+		a->num_passes && b->num_passes &&
+		a->noise == b->noise &&
+		a->brightness == b->brightness &&
+		a->contrast == b->contrast &&
+		a->saturation == b->saturation;
+}
+
+int blur_data_calc_size(struct blur_data *blur_data) {
+	return pow(2, blur_data->num_passes + 1) * blur_data->radius;
+}
-- 
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