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From: Max Staudt <mstaudt@suse.de>
To: b.zolnierkie@samsung.com, linux-fbdev@vger.kernel.org
Cc: michal@markovi.net, sndirsch@suse.com, oneukum@suse.com,
	tiwai@suse.com, dri-devel@lists.freedesktop.org,
	linux-kernel@vger.kernel.org, mstaudt@suse.de,
	bernhard.rosenkranzer@linaro.org, philm@manjaro.org
Subject: [RFC PATCH v2 04/13] bootsplash: Add corner positioning
Date: Wed, 13 Dec 2017 20:47:46 +0100
Message-ID: <20171213194755.3409-5-mstaudt@suse.de> (raw)
In-Reply-To: <20171213194755.3409-1-mstaudt@suse.de>

This allows showing multiple logos, each in its own position,
relative to the eight screen corners.

Signed-off-by: Max Staudt <mstaudt@suse.de>
---
 drivers/video/fbdev/core/bootsplash_render.c | 136 ++++++++++++++++++++++++++-
 include/uapi/linux/bootsplash_file.h         |  45 ++++++++-
 2 files changed, 178 insertions(+), 3 deletions(-)

diff --git a/drivers/video/fbdev/core/bootsplash_render.c b/drivers/video/fbdev/core/bootsplash_render.c
index 8c09c306ff67..07e3a4eab811 100644
--- a/drivers/video/fbdev/core/bootsplash_render.c
+++ b/drivers/video/fbdev/core/bootsplash_render.c
@@ -155,6 +155,7 @@ void bootsplash_do_render_pictures(struct fb_info *info,
 	for (i = 0; i < fp->header->num_pics; i++) {
 		struct splash_blob_priv *bp;
 		struct splash_pic_priv *pp = &fp->pics[i];
+		const struct splash_pic_header *ph = pp->pic_header;
 		long dst_xoff, dst_yoff;
 
 		if (pp->blobs_loaded < 1)
@@ -165,8 +166,139 @@ void bootsplash_do_render_pictures(struct fb_info *info,
 		if (!bp || bp->blob_header->type != 0)
 			continue;
 
-		dst_xoff = (info->var.xres - pp->pic_header->width) / 2;
-		dst_yoff = (info->var.yres - pp->pic_header->height) / 2;
+		switch (ph->position) {
+		case SPLASH_POS_FLAG_CORNER | SPLASH_CORNER_TOP_LEFT:
+			dst_xoff = 0;
+			dst_yoff = 0;
+
+			dst_xoff += ph->position_offset;
+			dst_yoff += ph->position_offset;
+			break;
+		case SPLASH_POS_FLAG_CORNER | SPLASH_CORNER_TOP:
+			dst_xoff = info->var.xres - pp->pic_header->width;
+			dst_xoff /= 2;
+			dst_yoff = 0;
+
+			dst_yoff += ph->position_offset;
+			break;
+		case SPLASH_POS_FLAG_CORNER | SPLASH_CORNER_TOP_RIGHT:
+			dst_xoff = info->var.xres - pp->pic_header->width;
+			dst_yoff = 0;
+
+			dst_xoff -= ph->position_offset;
+			dst_yoff += ph->position_offset;
+			break;
+		case SPLASH_POS_FLAG_CORNER | SPLASH_CORNER_RIGHT:
+			dst_xoff = info->var.xres - pp->pic_header->width;
+			dst_yoff = info->var.yres - pp->pic_header->height;
+			dst_yoff /= 2;
+
+			dst_xoff -= ph->position_offset;
+			break;
+		case SPLASH_POS_FLAG_CORNER | SPLASH_CORNER_BOTTOM_RIGHT:
+			dst_xoff = info->var.xres - pp->pic_header->width;
+			dst_yoff = info->var.yres - pp->pic_header->height;
+
+			dst_xoff -= ph->position_offset;
+			dst_yoff -= ph->position_offset;
+			break;
+		case SPLASH_POS_FLAG_CORNER | SPLASH_CORNER_BOTTOM:
+			dst_xoff = info->var.xres - pp->pic_header->width;
+			dst_xoff /= 2;
+			dst_yoff = info->var.yres - pp->pic_header->height;
+
+			dst_yoff -= ph->position_offset;
+			break;
+		case SPLASH_POS_FLAG_CORNER | SPLASH_CORNER_BOTTOM_LEFT:
+			dst_xoff = 0 + ph->position_offset;
+			dst_yoff = info->var.yres - pp->pic_header->height
+						  - ph->position_offset;
+			break;
+		case SPLASH_POS_FLAG_CORNER | SPLASH_CORNER_LEFT:
+			dst_xoff = 0;
+			dst_yoff = info->var.yres - pp->pic_header->height;
+			dst_yoff /= 2;
+
+			dst_xoff += ph->position_offset;
+			break;
+
+		case SPLASH_CORNER_TOP_LEFT:
+			dst_xoff = info->var.xres - pp->pic_header->width;
+			dst_xoff /= 2;
+			dst_yoff = info->var.yres - pp->pic_header->height;
+			dst_yoff /= 2;
+
+			dst_xoff -= ph->position_offset;
+			dst_yoff -= ph->position_offset;
+			break;
+		case SPLASH_CORNER_TOP:
+			dst_xoff = info->var.xres - pp->pic_header->width;
+			dst_xoff /= 2;
+			dst_yoff = info->var.yres - pp->pic_header->height;
+			dst_yoff /= 2;
+
+			dst_yoff -= ph->position_offset;
+			break;
+		case SPLASH_CORNER_TOP_RIGHT:
+			dst_xoff = info->var.xres - pp->pic_header->width;
+			dst_xoff /= 2;
+			dst_yoff = info->var.yres - pp->pic_header->height;
+			dst_yoff /= 2;
+
+			dst_xoff += ph->position_offset;
+			dst_yoff -= ph->position_offset;
+			break;
+		case SPLASH_CORNER_RIGHT:
+			dst_xoff = info->var.xres - pp->pic_header->width;
+			dst_xoff /= 2;
+			dst_yoff = info->var.yres - pp->pic_header->height;
+			dst_yoff /= 2;
+
+			dst_xoff += ph->position_offset;
+			break;
+		case SPLASH_CORNER_BOTTOM_RIGHT:
+			dst_xoff = info->var.xres - pp->pic_header->width;
+			dst_xoff /= 2;
+			dst_yoff = info->var.yres - pp->pic_header->height;
+			dst_yoff /= 2;
+
+			dst_xoff += ph->position_offset;
+			dst_yoff += ph->position_offset;
+			break;
+		case SPLASH_CORNER_BOTTOM:
+			dst_xoff = info->var.xres - pp->pic_header->width;
+			dst_xoff /= 2;
+			dst_yoff = info->var.yres - pp->pic_header->height;
+			dst_yoff /= 2;
+
+			dst_yoff += ph->position_offset;
+			break;
+		case SPLASH_CORNER_BOTTOM_LEFT:
+			dst_xoff = info->var.xres - pp->pic_header->width;
+			dst_xoff /= 2;
+			dst_yoff = info->var.yres - pp->pic_header->height;
+			dst_yoff /= 2;
+
+			dst_xoff -= ph->position_offset;
+			dst_yoff += ph->position_offset;
+			break;
+		case SPLASH_CORNER_LEFT:
+			dst_xoff = info->var.xres - pp->pic_header->width;
+			dst_xoff /= 2;
+			dst_yoff = info->var.yres - pp->pic_header->height;
+			dst_yoff /= 2;
+
+			dst_xoff -= ph->position_offset;
+			break;
+
+		default:
+			/* As a fallback, center the picture. */
+			dst_xoff = info->var.xres - pp->pic_header->width;
+			dst_xoff /= 2;
+			dst_yoff = info->var.yres - pp->pic_header->height;
+			dst_yoff /= 2;
+			break;
+		}
 
 		if (dst_xoff < 0
 		    || dst_yoff < 0
diff --git a/include/uapi/linux/bootsplash_file.h b/include/uapi/linux/bootsplash_file.h
index 89dc9cca8f0c..71cedcc68933 100644
--- a/include/uapi/linux/bootsplash_file.h
+++ b/include/uapi/linux/bootsplash_file.h
@@ -91,7 +91,32 @@ struct splash_pic_header {
 	 */
 	uint8_t num_blobs;
 
-	uint8_t padding[27];
+	/*
+	 * Corner to move the picture to / from.
+	 *  0x00 - Top left
+	 *  0x01 - Top
+	 *  0x02 - Top right
+	 *  0x03 - Right
+	 *  0x04 - Bottom right
+	 *  0x05 - Bottom
+	 *  0x06 - Bottom left
+	 *  0x07 - Left
+	 *
+	 * Flags:
+	 *  0x10 - Calculate offset from the corner towards the center,
+	 *         rather than from the center towards the corner
+	 */
+	uint8_t position;
+
+	/*
+	 * Pixel offset from the selected position.
+	 * Example: If the picture is in the top right corner, it will
+	 *          be placed position_offset pixels from the top and
+	 *          position_offset pixels from the right margin.
+	 */
+	uint16_t position_offset;
+
+	uint8_t padding[24];
 } __attribute__((__packed__));
 
 
@@ -115,4 +140,22 @@ struct splash_blob_header {
 	uint8_t padding[9];
 } __attribute__((__packed__));
 
+
+
+
+/*
+ * Enums for on-disk types
+ */
+enum splash_position {
+	SPLASH_CORNER_TOP_LEFT = 0,
+	SPLASH_CORNER_TOP = 1,
+	SPLASH_CORNER_TOP_RIGHT = 2,
+	SPLASH_CORNER_RIGHT = 3,
+	SPLASH_CORNER_BOTTOM_RIGHT = 4,
+	SPLASH_CORNER_BOTTOM = 5,
+	SPLASH_CORNER_BOTTOM_LEFT = 6,
+	SPLASH_CORNER_LEFT = 7,
+	SPLASH_POS_FLAG_CORNER = 0x10,
+};
+
 #endif
-- 
2.12.3

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  parent reply index

Thread overview: 68+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-13 19:47 [RFC PATCH v2 00/13] Kernel based bootsplash Max Staudt
2017-12-13 19:47 ` [RFC PATCH v2 01/13] bootsplash: Initial implementation showing black screen Max Staudt
2017-12-13 23:55   ` Randy Dunlap
2017-12-14 15:37     ` Max Staudt
2017-12-13 19:47 ` [RFC PATCH v2 02/13] bootsplash: Add file reading and picture rendering Max Staudt
2017-12-13 19:47 ` [RFC PATCH v2 03/13] bootsplash: Flush framebuffer after drawing Max Staudt
2017-12-13 21:35   ` Daniel Vetter
2017-12-14 15:36     ` Max Staudt
2017-12-19 12:23       ` Daniel Vetter
2017-12-19 13:34         ` Max Staudt
2017-12-19 13:57           ` Daniel Vetter
2017-12-19 14:07             ` Oliver Neukum
2017-12-31 12:53               ` Alan Cox
2018-01-03 18:04                 ` Max Staudt
2017-12-19 15:41             ` Max Staudt
2017-12-19 16:02               ` Daniel Vetter
2017-12-19 16:23                 ` Max Staudt
2017-12-20  9:45                   ` Daniel Vetter
2017-12-19 16:09               ` Daniel Vetter
2017-12-19 16:26                 ` Max Staudt
2017-12-19 21:01               ` Ray Strode
2017-12-20 13:14                 ` Max Staudt
2017-12-20 15:35                   ` Ray Strode
2017-12-20 16:52                     ` Max Staudt
2017-12-13 19:47 ` Max Staudt [this message]
2017-12-13 19:47 ` [RFC PATCH v2 05/13] bootsplash: Add animation support Max Staudt
2017-12-13 19:47 ` [RFC PATCH v2 06/13] vt: Redraw bootsplash fully on console_unblank Max Staudt
2017-12-13 19:47 ` [RFC PATCH v2 07/13] vt: Add keyboard hook to disable bootsplash Max Staudt
2017-12-13 19:47 ` [RFC PATCH v2 08/13] sysrq: Disable bootsplash on SAK Max Staudt
2017-12-13 19:47 ` [RFC PATCH v2 09/13] fbcon: Disable bootsplash on oops Max Staudt
2017-12-13 19:47 ` [RFC PATCH v2 10/13] Documentation: Add bootsplash main documentation Max Staudt
2017-12-13 19:47 ` [RFC PATCH v2 11/13] bootsplash: sysfs entries to load and unload files Max Staudt
2017-12-13 19:47 ` [RFC PATCH v2 12/13] tools/bootsplash: Add a basic splash file creation tool Max Staudt
2017-12-13 19:47 ` [RFC PATCH v2 13/13] tools/bootsplash: Add script and data to create sample file Max Staudt
2017-12-13 19:52 ` [RFC PATCH v2 00/13] Kernel based bootsplash Max Staudt
2017-12-19 16:16 ` Daniel Vetter
2017-12-19 17:04   ` Max Staudt
2017-12-19 17:26     ` Daniel Vetter
2017-12-19 18:40       ` Max Staudt
2017-12-20  9:43         ` Daniel Vetter
2017-12-20 10:06           ` Neil Armstrong
2017-12-20 10:14             ` Daniel Vetter
2017-12-20 14:55               ` Max Staudt
2017-12-20 15:11                 ` Daniel Vetter
2017-12-20 15:19                   ` Daniel Vetter
2017-12-20 15:22                     ` Daniel Vetter
2017-12-20 16:23                     ` Max Staudt
2017-12-20 16:15                   ` Max Staudt
2017-12-31 12:44                   ` Alan Cox
2018-01-03 18:00                     ` Max Staudt
2017-12-20 14:16             ` Max Staudt
2017-12-20 14:10           ` Max Staudt
2017-12-31 12:35         ` Alan Cox
2018-01-03 17:56           ` Max Staudt
2017-12-19 20:30     ` Ray Strode
2017-12-20 13:03       ` Max Staudt
2017-12-20 15:21         ` Ray Strode
2017-12-20 16:44           ` Max Staudt
2017-12-21 14:51             ` Ray Strode
2017-12-21 16:32               ` Max Staudt
2017-12-20 11:08   ` Johannes Thumshirn
2017-12-20 11:22     ` Daniel Stone
2017-12-20 12:48       ` Johannes Thumshirn
2017-12-29 17:13   ` Jani Nikula
2018-01-03 17:38     ` Max Staudt
2017-12-21  9:48 ` Daniel Vetter
2017-12-21 16:52   ` Max Staudt
2017-12-21 15:00 ` Philip Müller

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