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Message-ID: <20240812123147.81356-3-jfalempe@redhat.com>
Date: Mon, 12 Aug 2024 14:24:19 +0200
From: Jocelyn Falempe <jfalempe@...hat.com>
To: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>,
Thomas Zimmermann <tzimmermann@...e.de>,
David Airlie <airlied@...il.com>,
Daniel Vetter <daniel@...ll.ch>,
Miguel Ojeda <ojeda@...nel.org>,
Alex Gaynor <alex.gaynor@...il.com>,
Wedson Almeida Filho <wedsonaf@...il.com>,
Boqun Feng <boqun.feng@...il.com>,
Gary Guo <gary@...yguo.net>,
"Bjorn Roy Baron" <bjorn3_gh@...tonmail.com>,
Benno Lossin <benno.lossin@...ton.me>,
Andreas Hindborg <a.hindborg@...sung.com>,
Alice Ryhl <aliceryhl@...gle.com>,
linux-kernel@...r.kernel.org,
dri-devel@...ts.freedesktop.org,
rust-for-linux@...r.kernel.org,
Danilo Krummrich <dakr@...hat.com>
Cc: Jocelyn Falempe <jfalempe@...hat.com>
Subject: [PATCH v6 2/4] drm/rect: Add drm_rect_overlap()
Check if two rectangles overlap.
It's a bit similar to drm_rect_intersect() but this won't modify
the rectangle.
Simplifies a bit drm_panic.
Signed-off-by: Jocelyn Falempe <jfalempe@...hat.com>
---
drivers/gpu/drm/drm_panic.c | 3 +--
include/drm/drm_rect.h | 15 +++++++++++++++
2 files changed, 16 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/drm_panic.c b/drivers/gpu/drm/drm_panic.c
index 0a047152f88b8..59fba23e5fd7a 100644
--- a/drivers/gpu/drm/drm_panic.c
+++ b/drivers/gpu/drm/drm_panic.c
@@ -529,8 +529,7 @@ static void draw_panic_static_user(struct drm_scanout_buffer *sb)
/* Fill with the background color, and draw text on top */
drm_panic_fill(sb, &r_screen, bg_color);
- if ((r_msg.x1 >= logo_width || r_msg.y1 >= logo_height) &&
- logo_width <= sb->width && logo_height <= sb->height) {
+ if (!drm_rect_overlap(&r_logo, &r_msg)) {
if (logo_mono)
drm_panic_blit(sb, &r_logo, logo_mono->data, DIV_ROUND_UP(logo_width, 8),
fg_color);
diff --git a/include/drm/drm_rect.h b/include/drm/drm_rect.h
index 73fcb899a01da..7bafde747d560 100644
--- a/include/drm/drm_rect.h
+++ b/include/drm/drm_rect.h
@@ -238,6 +238,21 @@ static inline void drm_rect_fp_to_int(struct drm_rect *dst,
drm_rect_height(src) >> 16);
}
+/**
+ * drm_rect_overlap - Check if two rectangles overlap
+ * @r1: first rectangle
+ * @r2: second rectangle
+ *
+ * RETURNS:
+ * %true if the rectangles overlap, %false otherwise.
+ */
+static inline bool drm_rect_overlap(const struct drm_rect *r1,
+ const struct drm_rect *r2)
+{
+ return (r1->x2 > r2->x1 && r2->x2 > r1->x1 &&
+ r1->y2 > r2->y1 && r2->y2 > r1->y1);
+}
+
bool drm_rect_intersect(struct drm_rect *r, const struct drm_rect *clip);
bool drm_rect_clip_scaled(struct drm_rect *src, struct drm_rect *dst,
const struct drm_rect *clip);
--
2.46.0
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