From: Thomas Zimmermann <tzimmermann@suse.de>
To: daniel@ffwll.ch, airlied@linux.ie, mripard@kernel.org,
maarten.lankhorst@linux.intel.com, noralf@tronnes.org,
drawat.floss@gmail.com, airlied@redhat.com, kraxel@redhat.com,
david@lechnology.com, sam@ravnborg.org, javierm@redhat.com,
kernel@amanoeldawod.com, dirty.ice.hu@gmail.com,
michael+lkml@stapelberg.ch, aros@gmx.com,
joshua@stroblindustries.com, arnd@arndb.de
Cc: dri-devel@lists.freedesktop.org, linux-hyperv@vger.kernel.org,
virtualization@lists.linux-foundation.org,
Thomas Zimmermann <tzimmermann@suse.de>
Subject: [PATCH 1/9] drm/format-helper: Export drm_fb_clip_offset()
Date: Fri, 22 Oct 2021 15:28:21 +0200 [thread overview]
Message-ID: <20211022132829.7697-2-tzimmermann@suse.de> (raw)
In-Reply-To: <20211022132829.7697-1-tzimmermann@suse.de>
Provide a function that computes the offset into a blit destination
buffer. This will allow to move destination-buffer clipping into the
format-helper callers.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/gpu/drm/drm_format_helper.c | 10 ++++++++--
include/drm/drm_format_helper.h | 4 ++++
2 files changed, 12 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/drm_format_helper.c b/drivers/gpu/drm/drm_format_helper.c
index 69fde60e36b3..28e9d0d89270 100644
--- a/drivers/gpu/drm/drm_format_helper.c
+++ b/drivers/gpu/drm/drm_format_helper.c
@@ -17,12 +17,18 @@
#include <drm/drm_fourcc.h>
#include <drm/drm_rect.h>
-static unsigned int clip_offset(struct drm_rect *clip,
- unsigned int pitch, unsigned int cpp)
+static unsigned int clip_offset(const struct drm_rect *clip, unsigned int pitch, unsigned int cpp)
{
return clip->y1 * pitch + clip->x1 * cpp;
}
+unsigned long drm_fb_clip_offset(unsigned int pitch, const struct drm_format_info *format,
+ const struct drm_rect *clip)
+{
+ return clip_offset(clip, pitch, format->cpp[0]);
+}
+EXPORT_SYMBOL(drm_fb_clip_offset);
+
/**
* drm_fb_memcpy - Copy clip buffer
* @dst: Destination buffer
diff --git a/include/drm/drm_format_helper.h b/include/drm/drm_format_helper.h
index e86925cf07b9..90b9bd9ecb83 100644
--- a/include/drm/drm_format_helper.h
+++ b/include/drm/drm_format_helper.h
@@ -6,9 +6,13 @@
#ifndef __LINUX_DRM_FORMAT_HELPER_H
#define __LINUX_DRM_FORMAT_HELPER_H
+struct drm_format_info;
struct drm_framebuffer;
struct drm_rect;
+unsigned long drm_fb_clip_offset(unsigned int pitch, const struct drm_format_info *format,
+ const struct drm_rect *clip);
+
void drm_fb_memcpy(void *dst, void *vaddr, struct drm_framebuffer *fb,
struct drm_rect *clip);
void drm_fb_memcpy_dstclip(void __iomem *dst, unsigned int dst_pitch, void *vaddr,
--
2.33.0
next prev parent reply other threads:[~2021-10-22 13:28 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-22 13:28 [PATCH 0/9] drm/simpledrm: Enable damage clips and virtual screens Thomas Zimmermann
2021-10-22 13:28 ` Thomas Zimmermann [this message]
2021-10-24 8:25 ` [PATCH 1/9] drm/format-helper: Export drm_fb_clip_offset() Noralf Trønnes
[not found] ` <YXO+bGIW9sn9Rcfw@ravnborg.org>
2021-11-01 8:43 ` Thomas Zimmermann
2021-10-22 13:28 ` [PATCH 2/9] drm/format-helper: Rework format-helper memcpy functions Thomas Zimmermann
2021-10-24 8:25 ` Noralf Trønnes
2021-10-22 13:28 ` [PATCH 3/9] drm/format-helper: Add destination-buffer pitch to drm_fb_swab() Thomas Zimmermann
2021-10-24 8:33 ` Noralf Trønnes
2021-10-22 13:28 ` [PATCH 4/9] drm/format-helper: Rework format-helper conversion functions Thomas Zimmermann
2021-10-24 11:32 ` Noralf Trønnes
2021-11-01 13:38 ` Thomas Zimmermann
2021-10-22 13:28 ` [PATCH 5/9] drm/format-helper: Streamline blit-helper interface Thomas Zimmermann
2021-10-24 14:59 ` Noralf Trønnes
2021-10-22 13:28 ` [PATCH 6/9] drm/fb-helper: Allocate shadow buffer of surface height Thomas Zimmermann
2021-10-24 15:10 ` Noralf Trønnes
2021-10-22 13:28 ` [PATCH 7/9] drm/simpledrm: Enable FB_DAMAGE_CLIPS property Thomas Zimmermann
2021-10-24 15:20 ` Noralf Trønnes
2021-11-01 8:56 ` Thomas Zimmermann
2021-10-22 13:28 ` [PATCH 8/9] drm/simpledrm: Support virtual screen sizes Thomas Zimmermann
2021-10-22 13:28 ` [PATCH 9/9] drm: Clarify semantics of struct drm_mode_config.{min,max}_{width,height} Thomas Zimmermann
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