* [PATCH 2/8] fbcon: Console Rotation - Add support to rotate the logo
@ 2005-11-07 11:03 Antonino A. Daplas
0 siblings, 0 replies; only message in thread
From: Antonino A. Daplas @ 2005-11-07 11:03 UTC (permalink / raw)
To: Andrew Morton; +Cc: Linux Fbdev development list
Add support for rotating and positioning of the logo. Rotation and position
depends on 'int rotate' parameter added to fb_prepare_logo() and
fb_show_logo().
Signed-off-by: Antonino Daplas <adaplas@pol.net>
---
drivers/video/console/fbcon.c | 5 -
drivers/video/fbmem.c | 130 +++++++++++++++++++++++++++++++++++++-----
include/linux/fb.h | 4 -
3 files changed, 122 insertions(+), 17 deletions(-)
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index b5d678c..26935e2 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -499,6 +499,7 @@ static void fbcon_prepare_logo(struct vc
int cols, int rows, int new_cols, int new_rows)
{
/* Need to make room for the logo */
+ struct fbcon_ops *ops = info->fbcon_par;
int cnt, erase = vc->vc_video_erase_char, step;
unsigned short *save = NULL, *r, *q;
@@ -508,7 +509,7 @@ static void fbcon_prepare_logo(struct vc
*/
if (fb_get_color_depth(&info->var, &info->fix) == 1)
erase &= ~0x400;
- logo_height = fb_prepare_logo(info);
+ logo_height = fb_prepare_logo(info, ops->rotate);
logo_lines = (logo_height + vc->vc_font.height - 1) /
vc->vc_font.height;
q = (unsigned short *) (vc->vc_origin +
@@ -2073,7 +2074,7 @@ static int fbcon_switch(struct vc_data *
logo_shown = fg_console;
/* This is protected above by initmem_freed */
- fb_show_logo(info);
+ fb_show_logo(info, ops->rotate);
update_region(vc,
vc->vc_origin + vc->vc_size_row * vc->vc_top,
vc->vc_size_row * (vc->vc_bottom -
diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
index e2667dd..7a2a8fa 100644
--- a/drivers/video/fbmem.c
+++ b/drivers/video/fbmem.c
@@ -323,9 +323,103 @@ static struct logo_data {
const struct linux_logo *logo;
} fb_logo;
-int fb_prepare_logo(struct fb_info *info)
+static void fb_rotate_logo_ud(const u8 *in, u8 *out, u32 width, u32 height)
+{
+ u32 size = width * height, i;
+
+ out += size - 1;
+
+ for (i = size; i--; )
+ *out-- = *in++;
+}
+
+static void fb_rotate_logo_cw(const u8 *in, u8 *out, u32 width, u32 height)
+{
+ int i, j, w = width - 1;
+
+ for (i = 0; i < height; i++)
+ for (j = 0; j < width; j++)
+ out[height * j + w - i] = *in++;
+}
+
+static void fb_rotate_logo_ccw(const u8 *in, u8 *out, u32 width, u32 height)
+{
+ int i, j, w = width - 1;
+
+ for (i = 0; i < height; i++)
+ for (j = 0; j < width; j++)
+ out[height * (w - j) + i] = *in++;
+}
+
+static void fb_rotate_logo(struct fb_info *info, u8 *dst,
+ struct fb_image *image, int rotate)
+{
+ u32 tmp;
+
+ if (rotate == FB_ROTATE_UD) {
+ image->dx = info->var.xres - image->width;
+ image->dy = info->var.yres - image->height;
+ fb_rotate_logo_ud(image->data, dst, image->width,
+ image->height);
+ } else if (rotate == FB_ROTATE_CW) {
+ tmp = image->width;
+ image->width = image->height;
+ image->height = tmp;
+ image->dx = info->var.xres - image->height;
+ fb_rotate_logo_cw(image->data, dst, image->width,
+ image->height);
+ } else if (rotate == FB_ROTATE_CCW) {
+ tmp = image->width;
+ image->width = image->height;
+ image->height = tmp;
+ image->dy = info->var.yres - image->width;
+ fb_rotate_logo_ccw(image->data, dst, image->width,
+ image->height);
+ }
+
+ image->data = dst;
+}
+
+static void fb_do_show_logo(struct fb_info *info, struct fb_image *image,
+ int rotate)
+{
+ int x;
+
+ if (rotate == FB_ROTATE_UR) {
+ for (x = 0; x < num_online_cpus() &&
+ x * (fb_logo.logo->width + 8) <=
+ info->var.xres - fb_logo.logo->width; x++) {
+ info->fbops->fb_imageblit(info, image);
+ image->dx += fb_logo.logo->width + 8;
+ }
+ } else if (rotate == FB_ROTATE_UD) {
+ for (x = 0; x < num_online_cpus() &&
+ x * (fb_logo.logo->width + 8) <=
+ info->var.xres - fb_logo.logo->width; x++) {
+ info->fbops->fb_imageblit(info, image);
+ image->dx -= fb_logo.logo->width + 8;
+ }
+ } else if (rotate == FB_ROTATE_CW) {
+ for (x = 0; x < num_online_cpus() &&
+ x * (fb_logo.logo->width + 8) <=
+ info->var.yres - fb_logo.logo->width; x++) {
+ info->fbops->fb_imageblit(info, image);
+ image->dy += fb_logo.logo->width + 8;
+ }
+ } else if (rotate == FB_ROTATE_CCW) {
+ for (x = 0; x < num_online_cpus() &&
+ x * (fb_logo.logo->width + 8) <=
+ info->var.yres - fb_logo.logo->width; x++) {
+ info->fbops->fb_imageblit(info, image);
+ image->dy -= fb_logo.logo->width + 8;
+ }
+ }
+}
+
+int fb_prepare_logo(struct fb_info *info, int rotate)
{
int depth = fb_get_color_depth(&info->var, &info->fix);
+ int yres;
memset(&fb_logo, 0, sizeof(struct logo_data));
@@ -358,10 +452,16 @@ int fb_prepare_logo(struct fb_info *info
/* Return if no suitable logo was found */
fb_logo.logo = fb_find_logo(depth);
- if (!fb_logo.logo || fb_logo.logo->height > info->var.yres) {
+ if (rotate == FB_ROTATE_UR || rotate == FB_ROTATE_UD)
+ yres = info->var.yres;
+ else
+ yres = info->var.xres;
+
+ if (fb_logo.logo && fb_logo.logo->height > yres) {
fb_logo.logo = NULL;
return 0;
}
+
/* What depth we asked for might be different from what we get */
if (fb_logo.logo->type == LINUX_LOGO_CLUT224)
fb_logo.depth = 8;
@@ -372,12 +472,11 @@ int fb_prepare_logo(struct fb_info *info
return fb_logo.logo->height;
}
-int fb_show_logo(struct fb_info *info)
+int fb_show_logo(struct fb_info *info, int rotate)
{
u32 *palette = NULL, *saved_pseudo_palette = NULL;
- unsigned char *logo_new = NULL;
+ unsigned char *logo_new = NULL, *logo_rotate = NULL;
struct fb_image image;
- int x;
/* Return if the frame buffer is not mapped or suspended */
if (fb_logo.logo == NULL || info->state != FBINFO_STATE_RUNNING)
@@ -417,25 +516,30 @@ int fb_show_logo(struct fb_info *info)
fb_set_logo(info, fb_logo.logo, logo_new, fb_logo.depth);
}
+ image.dx = 0;
+ image.dy = 0;
image.width = fb_logo.logo->width;
image.height = fb_logo.logo->height;
- image.dy = 0;
- for (x = 0; x < num_online_cpus() * (fb_logo.logo->width + 8) &&
- x <= info->var.xres-fb_logo.logo->width; x += (fb_logo.logo->width + 8)) {
- image.dx = x;
- info->fbops->fb_imageblit(info, &image);
+ if (rotate) {
+ logo_rotate = kmalloc(fb_logo.logo->width *
+ fb_logo.logo->height, GFP_KERNEL);
+ if (logo_rotate)
+ fb_rotate_logo(info, logo_rotate, &image, rotate);
}
-
+
+ fb_do_show_logo(info, &image, rotate);
+
kfree(palette);
if (saved_pseudo_palette != NULL)
info->pseudo_palette = saved_pseudo_palette;
kfree(logo_new);
+ kfree(logo_rotate);
return fb_logo.logo->height;
}
#else
-int fb_prepare_logo(struct fb_info *info) { return 0; }
-int fb_show_logo(struct fb_info *info) { return 0; }
+int fb_prepare_logo(struct fb_info *info, int rotate) { return 0; }
+int fb_show_logo(struct fb_info *info, int rotate) { return 0; }
#endif /* CONFIG_LOGO */
static int fbmem_read_proc(char *buf, char **start, off_t offset,
diff --git a/include/linux/fb.h b/include/linux/fb.h
index 51791dc..357dd3a 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -825,8 +825,8 @@ extern void cfb_imageblit(struct fb_info
/* drivers/video/fbmem.c */
extern int register_framebuffer(struct fb_info *fb_info);
extern int unregister_framebuffer(struct fb_info *fb_info);
-extern int fb_prepare_logo(struct fb_info *fb_info);
-extern int fb_show_logo(struct fb_info *fb_info);
+extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);
+extern int fb_show_logo(struct fb_info *fb_info, int rotate);
extern char* fb_get_buffer_offset(struct fb_info *info, struct fb_pixmap *buf, u32 size);
extern void fb_pad_unaligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 idx,
u32 height, u32 shift_high, u32 shift_low, u32 mod);
-------------------------------------------------------
SF.Net email is sponsored by:
Tame your development challenges with Apache's Geronimo App Server. Download
it for free - -and be entered to win a 42" plasma tv or your very own
Sony(tm)PSP. Click here to play: http://sourceforge.net/geronimo.php
^ permalink raw reply related [flat|nested] only message in thread
only message in thread, other threads:[~2005-11-07 11:28 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2005-11-07 11:03 [PATCH 2/8] fbcon: Console Rotation - Add support to rotate the logo Antonino A. Daplas
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.