[PATCH v4 1/1] video console: refactoring and optimization
Dzmitry Sankouski
dsankouski at gmail.com
Fri Feb 17 16:00:46 CET 2023
- move common code to vidconsole_internal.h
- unite probe functions
- get rid of code duplications in switch across bpp values
- extract common pixel fill logic in two functions one per
horizontal and vertical filling
- rearrange statements in put_xy* methods in unified way
- replace types - uint*_t to u*
Signed-off-by: Dzmitry Sankouski <dsankouski at gmail.com>
---
Changes for v2: none
Changes for v3: none
Changes for v4:
- move common code to vidconsole_internal.h
- unite probe functions
drivers/video/console_normal.c | 150 +++---------
drivers/video/console_rotate.c | 364 ++++++++--------------------
drivers/video/vidconsole_internal.h | 148 +++++++++++
3 files changed, 288 insertions(+), 374 deletions(-)
create mode 100644 drivers/video/vidconsole_internal.h
diff --git a/drivers/video/console_normal.c b/drivers/video/console_normal.c
index 04f022491e..57186bedd8 100644
--- a/drivers/video/console_normal.c
+++ b/drivers/video/console_normal.c
@@ -1,10 +1,9 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2015 Google, Inc
- * (C) Copyright 2001-2015
- * DENX Software Engineering -- wd at denx.de
- * Compulab Ltd - http://compulab.co.il/
+ * (C) Copyright 2015
* Bernecker & Rainer Industrieelektronik GmbH - http://www.br-automation.com
+ * (C) Copyright 2023 Dzmitry Sankouski <dsankouski at gmail.com>
*/
#include <common.h>
@@ -12,47 +11,28 @@
#include <video.h>
#include <video_console.h>
#include <video_font.h> /* Get font data, width and height */
+#include "vidconsole_internal.h"
-static int console_normal_set_row(struct udevice *dev, uint row, int clr)
+static int console_set_row(struct udevice *dev, uint row, int clr)
{
struct video_priv *vid_priv = dev_get_uclass_priv(dev->parent);
- void *line, *end;
+ void *line, *dst, *end;
int pixels = VIDEO_FONT_HEIGHT * vid_priv->xsize;
int ret;
int i;
+ int pbytes;
+
+ ret = check_bpix_support(vid_priv->bpix);
+ if (ret)
+ return ret;
line = vid_priv->fb + row * VIDEO_FONT_HEIGHT * vid_priv->line_length;
- switch (vid_priv->bpix) {
- case VIDEO_BPP8:
- if (IS_ENABLED(CONFIG_VIDEO_BPP8)) {
- uint8_t *dst = line;
-
- for (i = 0; i < pixels; i++)
- *dst++ = clr;
- end = dst;
- break;
- }
- case VIDEO_BPP16:
- if (IS_ENABLED(CONFIG_VIDEO_BPP16)) {
- uint16_t *dst = line;
-
- for (i = 0; i < pixels; i++)
- *dst++ = clr;
- end = dst;
- break;
- }
- case VIDEO_BPP32:
- if (IS_ENABLED(CONFIG_VIDEO_BPP32)) {
- uint32_t *dst = line;
-
- for (i = 0; i < pixels; i++)
- *dst++ = clr;
- end = dst;
- break;
- }
- default:
- return -ENOSYS;
- }
+ dst = line;
+ pbytes = VNBYTES(vid_priv->bpix);
+ for (i = 0; i < pixels; i++)
+ fill_pixel_and_goto_next(&dst, clr, pbytes, pbytes);
+ end = dst;
+
ret = vidconsole_sync_copy(dev, line, end);
if (ret)
return ret;
@@ -60,8 +40,8 @@ static int console_normal_set_row(struct udevice *dev, uint row, int clr)
return 0;
}
-static int console_normal_move_rows(struct udevice *dev, uint rowdst,
- uint rowsrc, uint count)
+static int console_move_rows(struct udevice *dev, uint rowdst,
+ uint rowsrc, uint count)
{
struct video_priv *vid_priv = dev_get_uclass_priv(dev->parent);
void *dst;
@@ -79,70 +59,30 @@ static int console_normal_move_rows(struct udevice *dev, uint rowdst,
return 0;
}
-static int console_normal_putc_xy(struct udevice *dev, uint x_frac, uint y,
- char ch)
+static int console_putc_xy(struct udevice *dev, uint x_frac, uint y, char ch)
{
struct vidconsole_priv *vc_priv = dev_get_uclass_priv(dev);
struct udevice *vid = dev->parent;
struct video_priv *vid_priv = dev_get_uclass_priv(vid);
- int i, row;
- void *start;
- void *line;
- int ret;
+ int pbytes = VNBYTES(vid_priv->bpix);
+ int x, linenum, ret;
+ void *start, *line;
+ uchar *pfont = video_fontdata + (u8)ch * VIDEO_FONT_HEIGHT;
- start = vid_priv->fb + y * vid_priv->line_length +
- VID_TO_PIXEL(x_frac) * VNBYTES(vid_priv->bpix);
+ if (x_frac + VID_TO_POS(vc_priv->x_charsize) > vc_priv->xsize_frac)
+ return -EAGAIN;
+ linenum = y;
+ x = VID_TO_PIXEL(x_frac);
+ start = vid_priv->fb + linenum * vid_priv->line_length + x * pbytes;
line = start;
if (x_frac + VID_TO_POS(vc_priv->x_charsize) > vc_priv->xsize_frac)
return -EAGAIN;
- for (row = 0; row < VIDEO_FONT_HEIGHT; row++) {
- unsigned int idx = (u8)ch * VIDEO_FONT_HEIGHT + row;
- uchar bits = video_fontdata[idx];
-
- switch (vid_priv->bpix) {
- case VIDEO_BPP8:
- if (IS_ENABLED(CONFIG_VIDEO_BPP8)) {
- uint8_t *dst = line;
-
- for (i = 0; i < VIDEO_FONT_WIDTH; i++) {
- *dst++ = (bits & 0x80) ?
- vid_priv->colour_fg :
- vid_priv->colour_bg;
- bits <<= 1;
- }
- break;
- }
- case VIDEO_BPP16:
- if (IS_ENABLED(CONFIG_VIDEO_BPP16)) {
- uint16_t *dst = line;
-
- for (i = 0; i < VIDEO_FONT_WIDTH; i++) {
- *dst++ = (bits & 0x80) ?
- vid_priv->colour_fg :
- vid_priv->colour_bg;
- bits <<= 1;
- }
- break;
- }
- case VIDEO_BPP32:
- if (IS_ENABLED(CONFIG_VIDEO_BPP32)) {
- uint32_t *dst = line;
-
- for (i = 0; i < VIDEO_FONT_WIDTH; i++) {
- *dst++ = (bits & 0x80) ?
- vid_priv->colour_fg :
- vid_priv->colour_bg;
- bits <<= 1;
- }
- break;
- }
- default:
- return -ENOSYS;
- }
- line += vid_priv->line_length;
- }
+ ret = fill_char_vertically(pfont, &line, vid_priv, NORMAL_DIRECTION);
+ if (ret)
+ return ret;
+
ret = vidconsole_sync_copy(dev, start, line);
if (ret)
return ret;
@@ -150,29 +90,15 @@ static int console_normal_putc_xy(struct udevice *dev, uint x_frac, uint y,
return VID_TO_POS(VIDEO_FONT_WIDTH);
}
-static int console_normal_probe(struct udevice *dev)
-{
- struct vidconsole_priv *vc_priv = dev_get_uclass_priv(dev);
- struct udevice *vid_dev = dev->parent;
- struct video_priv *vid_priv = dev_get_uclass_priv(vid_dev);
-
- vc_priv->x_charsize = VIDEO_FONT_WIDTH;
- vc_priv->y_charsize = VIDEO_FONT_HEIGHT;
- vc_priv->cols = vid_priv->xsize / VIDEO_FONT_WIDTH;
- vc_priv->rows = vid_priv->ysize / VIDEO_FONT_HEIGHT;
-
- return 0;
-}
-
-struct vidconsole_ops console_normal_ops = {
- .putc_xy = console_normal_putc_xy,
- .move_rows = console_normal_move_rows,
- .set_row = console_normal_set_row,
+struct vidconsole_ops console_ops = {
+ .putc_xy = console_putc_xy,
+ .move_rows = console_move_rows,
+ .set_row = console_set_row,
};
U_BOOT_DRIVER(vidconsole_normal) = {
.name = "vidconsole0",
.id = UCLASS_VIDEO_CONSOLE,
- .ops = &console_normal_ops,
- .probe = console_normal_probe,
+ .ops = &console_ops,
+ .probe = console_probe,
};
diff --git a/drivers/video/console_rotate.c b/drivers/video/console_rotate.c
index 36c8d0609d..60ed2139bb 100644
--- a/drivers/video/console_rotate.c
+++ b/drivers/video/console_rotate.c
@@ -3,6 +3,7 @@
* Copyright (c) 2015 Google, Inc
* (C) Copyright 2015
* Bernecker & Rainer Industrieelektronik GmbH - http://www.br-automation.com
+ * (C) Copyright 2023 Dzmitry Sankouski <dsankouski at gmail.com>
*/
#include <common.h>
@@ -10,12 +11,73 @@
#include <video.h>
#include <video_console.h>
#include <video_font.h> /* Get font data, width and height */
+#include "vidconsole_internal.h"
+
+/**
+ * Fills 1 character in framebuffer horizontally.
+ * Horizontally means we're filling char font data columns across the lines.
+ *
+ * @param pfont a pointer to character font data.
+ * @param line a pointer to pointer to framebuffer. It's a point for upper left char corner
+ * @param vid_priv driver private data.
+ * @param direction controls character orientation. Can be normal or flipped.
+ * When normal: When flipped:
+ *|-----------------------------------------------|
+ *| * | line stepping |
+ *| ^ * * * * * | | |
+ *| | * * | v * * |
+ *| | | * * * * * |
+ *| line stepping | * |
+ *| | |
+ *| stepping -> | <- stepping |
+ *|---!!we're starting from upper left char corner|
+ *|-----------------------------------------------|
+ *
+ * @returns 0, if success, or else error code.
+ */
+static int fill_char_horizontally(uchar *pfont, void **line, struct video_priv *vid_priv,
+ bool direction)
+{
+ int step, line_step, pbytes, ret;
+ void *dst;
+ u8 mask = 0x80;
+
+ ret = check_bpix_support(vid_priv->bpix);
+ if (ret)
+ return ret;
+
+ pbytes = VNBYTES(vid_priv->bpix);
+ if (direction) {
+ step = -pbytes;
+ line_step = vid_priv->line_length;
+ } else {
+ step = pbytes;
+ line_step = -vid_priv->line_length;
+ }
+ for (int col = 0; col < VIDEO_FONT_WIDTH; col++) {
+ dst = *line;
+ for (int row = 0; row < VIDEO_FONT_HEIGHT; row++) {
+ u32 value = (pfont[row * VIDEO_FONT_BYTE_WIDTH] & mask) ?
+ vid_priv->colour_fg :
+ vid_priv->colour_bg;
+
+ fill_pixel_and_goto_next(&dst,
+ value,
+ pbytes,
+ step
+ );
+ }
+ *line += line_step;
+ mask >>= 1;
+ }
+ return ret;
+}
static int console_set_row_1(struct udevice *dev, uint row, int clr)
{
struct video_priv *vid_priv = dev_get_uclass_priv(dev->parent);
int pbytes = VNBYTES(vid_priv->bpix);
- void *start, *line;
+ void *start, *dst, *line;
int i, j;
int ret;
@@ -23,34 +85,9 @@ static int console_set_row_1(struct udevice *dev, uint row, int clr)
(row + 1) * VIDEO_FONT_HEIGHT * pbytes;
line = start;
for (j = 0; j < vid_priv->ysize; j++) {
- switch (vid_priv->bpix) {
- case VIDEO_BPP8:
- if (IS_ENABLED(CONFIG_VIDEO_BPP8)) {
- uint8_t *dst = line;
-
- for (i = 0; i < VIDEO_FONT_HEIGHT; i++)
- *dst++ = clr;
- break;
- }
- case VIDEO_BPP16:
- if (IS_ENABLED(CONFIG_VIDEO_BPP16)) {
- uint16_t *dst = line;
-
- for (i = 0; i < VIDEO_FONT_HEIGHT; i++)
- *dst++ = clr;
- break;
- }
- case VIDEO_BPP32:
- if (IS_ENABLED(CONFIG_VIDEO_BPP32)) {
- uint32_t *dst = line;
-
- for (i = 0; i < VIDEO_FONT_HEIGHT; i++)
- *dst++ = clr;
- break;
- }
- default:
- return -ENOSYS;
- }
+ dst = line;
+ for (i = 0; i < VIDEO_FONT_HEIGHT; i++)
+ fill_pixel_and_goto_next(&dst, clr, pbytes, pbytes);
line += vid_priv->line_length;
}
ret = vidconsole_sync_copy(dev, start, line);
@@ -61,7 +98,7 @@ static int console_set_row_1(struct udevice *dev, uint row, int clr)
}
static int console_move_rows_1(struct udevice *dev, uint rowdst, uint rowsrc,
- uint count)
+ uint count)
{
struct video_priv *vid_priv = dev_get_uclass_priv(dev->parent);
int pbytes = VNBYTES(vid_priv->bpix);
@@ -76,7 +113,7 @@ static int console_move_rows_1(struct udevice *dev, uint rowdst, uint rowsrc,
for (j = 0; j < vid_priv->ysize; j++) {
ret = vidconsole_memmove(dev, dst, src,
- VIDEO_FONT_HEIGHT * pbytes * count);
+ VIDEO_FONT_HEIGHT * pbytes * count);
if (ret)
return ret;
src += vid_priv->line_length;
@@ -91,60 +128,22 @@ static int console_putc_xy_1(struct udevice *dev, uint x_frac, uint y, char ch)
struct vidconsole_priv *vc_priv = dev_get_uclass_priv(dev);
struct udevice *vid = dev->parent;
struct video_priv *vid_priv = dev_get_uclass_priv(vid);
- uchar *pfont = video_fontdata + (u8)ch * VIDEO_FONT_HEIGHT;
int pbytes = VNBYTES(vid_priv->bpix);
- int i, col, x, linenum, ret;
- int mask = 0x80;
+ int x, linenum, ret;
void *start, *line;
+ uchar *pfont = video_fontdata + (u8)ch * VIDEO_FONT_HEIGHT;
+ if (x_frac + VID_TO_POS(vc_priv->x_charsize) > vc_priv->xsize_frac)
+ return -EAGAIN;
linenum = VID_TO_PIXEL(x_frac) + 1;
x = y + 1;
start = vid_priv->fb + linenum * vid_priv->line_length - x * pbytes;
line = start;
- if (x_frac + VID_TO_POS(vc_priv->x_charsize) > vc_priv->xsize_frac)
- return -EAGAIN;
- for (col = 0; col < VIDEO_FONT_HEIGHT; col++) {
- switch (vid_priv->bpix) {
- case VIDEO_BPP8:
- if (IS_ENABLED(CONFIG_VIDEO_BPP8)) {
- uint8_t *dst = line;
+ ret = fill_char_horizontally(pfont, &line, vid_priv, FLIPPED_DIRECTION);
+ if (ret)
+ return ret;
- for (i = 0; i < VIDEO_FONT_HEIGHT; i++) {
- *dst-- = (pfont[i] & mask) ?
- vid_priv->colour_fg :
- vid_priv->colour_bg;
- }
- break;
- }
- case VIDEO_BPP16:
- if (IS_ENABLED(CONFIG_VIDEO_BPP16)) {
- uint16_t *dst = line;
-
- for (i = 0; i < VIDEO_FONT_HEIGHT; i++) {
- *dst-- = (pfont[i] & mask) ?
- vid_priv->colour_fg :
- vid_priv->colour_bg;
- }
- break;
- }
- case VIDEO_BPP32:
- if (IS_ENABLED(CONFIG_VIDEO_BPP32)) {
- uint32_t *dst = line;
-
- for (i = 0; i < VIDEO_FONT_HEIGHT; i++) {
- *dst-- = (pfont[i] & mask) ?
- vid_priv->colour_fg :
- vid_priv->colour_bg;
- }
- break;
- }
- default:
- return -ENOSYS;
- }
- line += vid_priv->line_length;
- mask >>= 1;
- }
/* We draw backwards from 'start, so account for the first line */
ret = vidconsole_sync_copy(dev, start - vid_priv->line_length, line);
if (ret)
@@ -157,44 +156,18 @@ static int console_putc_xy_1(struct udevice *dev, uint x_frac, uint y, char ch)
static int console_set_row_2(struct udevice *dev, uint row, int clr)
{
struct video_priv *vid_priv = dev_get_uclass_priv(dev->parent);
- void *start, *line, *end;
+ void *start, *line, *dst, *end;
int pixels = VIDEO_FONT_HEIGHT * vid_priv->xsize;
int i, ret;
+ int pbytes = VNBYTES(vid_priv->bpix);
start = vid_priv->fb + vid_priv->ysize * vid_priv->line_length -
(row + 1) * VIDEO_FONT_HEIGHT * vid_priv->line_length;
line = start;
- switch (vid_priv->bpix) {
- case VIDEO_BPP8:
- if (IS_ENABLED(CONFIG_VIDEO_BPP8)) {
- uint8_t *dst = line;
-
- for (i = 0; i < pixels; i++)
- *dst++ = clr;
- end = dst;
- break;
- }
- case VIDEO_BPP16:
- if (IS_ENABLED(CONFIG_VIDEO_BPP16)) {
- uint16_t *dst = line;
-
- for (i = 0; i < pixels; i++)
- *dst++ = clr;
- end = dst;
- break;
- }
- case VIDEO_BPP32:
- if (IS_ENABLED(CONFIG_VIDEO_BPP32)) {
- uint32_t *dst = line;
-
- for (i = 0; i < pixels; i++)
- *dst++ = clr;
- end = dst;
- break;
- }
- default:
- return -ENOSYS;
- }
+ dst = line;
+ for (i = 0; i < pixels; i++)
+ fill_pixel_and_goto_next(&dst, clr, pbytes, pbytes);
+ end = dst;
ret = vidconsole_sync_copy(dev, start, end);
if (ret)
return ret;
@@ -227,8 +200,9 @@ static int console_putc_xy_2(struct udevice *dev, uint x_frac, uint y, char ch)
struct udevice *vid = dev->parent;
struct video_priv *vid_priv = dev_get_uclass_priv(vid);
int pbytes = VNBYTES(vid_priv->bpix);
- int i, row, x, linenum, ret;
+ int linenum, x, ret;
void *start, *line;
+ uchar *pfont = video_fontdata + (u8)ch * VIDEO_FONT_HEIGHT;
if (x_frac + VID_TO_POS(vc_priv->x_charsize) > vc_priv->xsize_frac)
return -EAGAIN;
@@ -237,52 +211,10 @@ static int console_putc_xy_2(struct udevice *dev, uint x_frac, uint y, char ch)
start = vid_priv->fb + linenum * vid_priv->line_length + x * pbytes;
line = start;
- for (row = 0; row < VIDEO_FONT_HEIGHT; row++) {
- unsigned int idx = (u8)ch * VIDEO_FONT_HEIGHT + row;
- uchar bits = video_fontdata[idx];
-
- switch (vid_priv->bpix) {
- case VIDEO_BPP8:
- if (IS_ENABLED(CONFIG_VIDEO_BPP8)) {
- uint8_t *dst = line;
+ ret = fill_char_vertically(pfont, &line, vid_priv, FLIPPED_DIRECTION);
+ if (ret)
+ return ret;
- for (i = 0; i < VIDEO_FONT_WIDTH; i++) {
- *dst-- = (bits & 0x80) ?
- vid_priv->colour_fg :
- vid_priv->colour_bg;
- bits <<= 1;
- }
- break;
- }
- case VIDEO_BPP16:
- if (IS_ENABLED(CONFIG_VIDEO_BPP16)) {
- uint16_t *dst = line;
-
- for (i = 0; i < VIDEO_FONT_WIDTH; i++) {
- *dst-- = (bits & 0x80) ?
- vid_priv->colour_fg :
- vid_priv->colour_bg;
- bits <<= 1;
- }
- break;
- }
- case VIDEO_BPP32:
- if (IS_ENABLED(CONFIG_VIDEO_BPP32)) {
- uint32_t *dst = line;
-
- for (i = 0; i < VIDEO_FONT_WIDTH; i++) {
- *dst-- = (bits & 0x80) ?
- vid_priv->colour_fg :
- vid_priv->colour_bg;
- bits <<= 1;
- }
- break;
- }
- default:
- return -ENOSYS;
- }
- line -= vid_priv->line_length;
- }
/* Add 4 bytes to allow for the first pixel writen */
ret = vidconsole_sync_copy(dev, start + 4, line);
if (ret)
@@ -295,40 +227,15 @@ static int console_set_row_3(struct udevice *dev, uint row, int clr)
{
struct video_priv *vid_priv = dev_get_uclass_priv(dev->parent);
int pbytes = VNBYTES(vid_priv->bpix);
- void *start, *line;
+ void *start, *dst, *line;
int i, j, ret;
start = vid_priv->fb + row * VIDEO_FONT_HEIGHT * pbytes;
line = start;
for (j = 0; j < vid_priv->ysize; j++) {
- switch (vid_priv->bpix) {
- case VIDEO_BPP8:
- if (IS_ENABLED(CONFIG_VIDEO_BPP8)) {
- uint8_t *dst = line;
-
- for (i = 0; i < VIDEO_FONT_HEIGHT; i++)
- *dst++ = clr;
- break;
- }
- case VIDEO_BPP16:
- if (IS_ENABLED(CONFIG_VIDEO_BPP16)) {
- uint16_t *dst = line;
-
- for (i = 0; i < VIDEO_FONT_HEIGHT; i++)
- *dst++ = clr;
- break;
- }
- case VIDEO_BPP32:
- if (IS_ENABLED(CONFIG_VIDEO_BPP32)) {
- uint32_t *dst = line;
-
- for (i = 0; i < VIDEO_FONT_HEIGHT; i++)
- *dst++ = clr;
- break;
- }
- default:
- return -ENOSYS;
- }
+ dst = line;
+ for (i = 0; i < VIDEO_FONT_HEIGHT; i++)
+ fill_pixel_and_goto_next(&dst, clr, pbytes, pbytes);
line += vid_priv->line_length;
}
ret = vidconsole_sync_copy(dev, start, line);
@@ -367,58 +274,21 @@ static int console_putc_xy_3(struct udevice *dev, uint x_frac, uint y, char ch)
struct vidconsole_priv *vc_priv = dev_get_uclass_priv(dev);
struct udevice *vid = dev->parent;
struct video_priv *vid_priv = dev_get_uclass_priv(vid);
- uchar *pfont = video_fontdata + (u8)ch * VIDEO_FONT_HEIGHT;
int pbytes = VNBYTES(vid_priv->bpix);
- int i, col, x, ret;
- int mask = 0x80;
+ int linenum, x, ret;
void *start, *line;
+ uchar *pfont = video_fontdata + (u8)ch * VIDEO_FONT_HEIGHT;
if (x_frac + VID_TO_POS(vc_priv->x_charsize) > vc_priv->xsize_frac)
return -EAGAIN;
- x = vid_priv->ysize - VID_TO_PIXEL(x_frac) - 1;
- start = vid_priv->fb + x * vid_priv->line_length + y * pbytes;
+ x = y;
+ linenum = vid_priv->ysize - VID_TO_PIXEL(x_frac) - 1;
+ start = vid_priv->fb + linenum * vid_priv->line_length + y * pbytes;
line = start;
- for (col = 0; col < VIDEO_FONT_HEIGHT; col++) {
- switch (vid_priv->bpix) {
- case VIDEO_BPP8:
- if (IS_ENABLED(CONFIG_VIDEO_BPP8)) {
- uint8_t *dst = line;
-
- for (i = 0; i < VIDEO_FONT_HEIGHT; i++) {
- *dst++ = (pfont[i] & mask) ?
- vid_priv->colour_fg :
- vid_priv->colour_bg;
- }
- break;
- }
- case VIDEO_BPP16:
- if (IS_ENABLED(CONFIG_VIDEO_BPP16)) {
- uint16_t *dst = line;
-
- for (i = 0; i < VIDEO_FONT_HEIGHT; i++) {
- *dst++ = (pfont[i] & mask) ?
- vid_priv->colour_fg :
- vid_priv->colour_bg;
- }
- break;
- }
- case VIDEO_BPP32:
- if (IS_ENABLED(CONFIG_VIDEO_BPP32)) {
- uint32_t *dst = line;
-
- for (i = 0; i < VIDEO_FONT_HEIGHT; i++) {
- *dst++ = (pfont[i] & mask) ?
- vid_priv->colour_fg :
- vid_priv->colour_bg;
- }
- break;
- }
- default:
- return -ENOSYS;
- }
- line -= vid_priv->line_length;
- mask >>= 1;
- }
+
+ ret = fill_char_horizontally(pfont, &line, vid_priv, NORMAL_DIRECTION);
+ if (ret)
+ return ret;
/* Add a line to allow for the first pixels writen */
ret = vidconsole_sync_copy(dev, start + vid_priv->line_length, line);
if (ret)
@@ -427,36 +297,6 @@ static int console_putc_xy_3(struct udevice *dev, uint x_frac, uint y, char ch)
return VID_TO_POS(VIDEO_FONT_WIDTH);
}
-
-static int console_probe_2(struct udevice *dev)
-{
- struct vidconsole_priv *vc_priv = dev_get_uclass_priv(dev);
- struct udevice *vid_dev = dev->parent;
- struct video_priv *vid_priv = dev_get_uclass_priv(vid_dev);
-
- vc_priv->x_charsize = VIDEO_FONT_WIDTH;
- vc_priv->y_charsize = VIDEO_FONT_HEIGHT;
- vc_priv->cols = vid_priv->xsize / VIDEO_FONT_WIDTH;
- vc_priv->rows = vid_priv->ysize / VIDEO_FONT_HEIGHT;
-
- return 0;
-}
-
-static int console_probe_1_3(struct udevice *dev)
-{
- struct vidconsole_priv *vc_priv = dev_get_uclass_priv(dev);
- struct udevice *vid_dev = dev->parent;
- struct video_priv *vid_priv = dev_get_uclass_priv(vid_dev);
-
- vc_priv->x_charsize = VIDEO_FONT_WIDTH;
- vc_priv->y_charsize = VIDEO_FONT_HEIGHT;
- vc_priv->cols = vid_priv->ysize / VIDEO_FONT_WIDTH;
- vc_priv->rows = vid_priv->xsize / VIDEO_FONT_HEIGHT;
- vc_priv->xsize_frac = VID_TO_POS(vid_priv->ysize);
-
- return 0;
-}
-
struct vidconsole_ops console_ops_1 = {
.putc_xy = console_putc_xy_1,
.move_rows = console_move_rows_1,
@@ -479,19 +319,19 @@ U_BOOT_DRIVER(vidconsole_1) = {
.name = "vidconsole1",
.id = UCLASS_VIDEO_CONSOLE,
.ops = &console_ops_1,
- .probe = console_probe_1_3,
+ .probe = console_probe,
};
U_BOOT_DRIVER(vidconsole_2) = {
.name = "vidconsole2",
.id = UCLASS_VIDEO_CONSOLE,
.ops = &console_ops_2,
- .probe = console_probe_2,
+ .probe = console_probe,
};
U_BOOT_DRIVER(vidconsole_3) = {
.name = "vidconsole3",
.id = UCLASS_VIDEO_CONSOLE,
.ops = &console_ops_3,
- .probe = console_probe_1_3,
+ .probe = console_probe,
};
diff --git a/drivers/video/vidconsole_internal.h b/drivers/video/vidconsole_internal.h
new file mode 100644
index 0000000000..20b7820af3
--- /dev/null
+++ b/drivers/video/vidconsole_internal.h
@@ -0,0 +1,148 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (c) 2015 Google, Inc
+ * (C) Copyright 2015
+ * Bernecker & Rainer Industrieelektronik GmbH - http://www.br-automation.com
+ * (C) Copyright 2023 Dzmitry Sankouski <dsankouski at gmail.com>
+ */
+
+#define VIDEO_FONT_BYTE_WIDTH ((VIDEO_FONT_WIDTH / 8) + (VIDEO_FONT_WIDTH % 8 > 0))
+
+#define FLIPPED_DIRECTION 1
+#define NORMAL_DIRECTION 0
+
+/**
+ * Checks if bits per pixel supported.
+ *
+ * @param bpix framebuffer bits per pixel.
+ *
+ * @returns 0, if supported, or else -ENOSYS.
+ */
+static int check_bpix_support(int bpix)
+{
+ switch (bpix) {
+ case VIDEO_BPP8:
+ if (IS_ENABLED(CONFIG_VIDEO_BPP8))
+ return 0;
+ case VIDEO_BPP16:
+ if (IS_ENABLED(CONFIG_VIDEO_BPP16))
+ return 0;
+ case VIDEO_BPP32:
+ if (IS_ENABLED(CONFIG_VIDEO_BPP32))
+ return 0;
+ default:
+ return -ENOSYS;
+ }
+}
+
+/**
+ * Fill 1 pixel in framebuffer, and go to next one.
+ *
+ * @param dstp a pointer to pointer to framebuffer.
+ * @param value value to write to framebuffer.
+ * @param pbytes framebuffer bytes per pixel.
+ * @param step framebuffer pointer increment. Usually is equal to pbytes,
+ * and may be negative to control filling direction.
+ */
+static inline void fill_pixel_and_goto_next(void **dstp, u32 value, int pbytes, int step)
+{
+ u8 *dst_byte = *dstp;
+
+ if (pbytes == 4) {
+ u32 *dst = *dstp;
+ *dst = value;
+ }
+ if (pbytes == 2) {
+ u16 *dst = *dstp;
+ *dst = value;
+ }
+ if (pbytes == 1) {
+ u8 *dst = *dstp;
+ *dst = value;
+ }
+ *dstp = dst_byte + step;
+}
+
+/**
+ * Fills 1 character in framebuffer vertically. Vertically means we're filling char font data rows
+ * across the lines.
+ *
+ * @param pfont a pointer to character font data.
+ * @param line a pointer to pointer to framebuffer. It's a point for upper left char corner
+ * @param vid_priv driver private data.
+ * @param direction controls character orientation. Can be normal or flipped.
+ * When normal: When flipped:
+ *|-----------------------------------------------|
+ *| line stepping | |
+ *| | | stepping -> |
+ *| * | | * * * |
+ *| * * v | * |
+ *| * | * |
+ *| * | * * ^ |
+ *| * * * | * | |
+ *| | | |
+ *| stepping -> | line stepping |
+ *|---!!we're starting from upper left char corner|
+ *|-----------------------------------------------|
+ *
+ * @returns 0, if success, or else error code.
+ */
+static int fill_char_vertically(uchar *pfont, void **line, struct video_priv *vid_priv,
+ bool direction)
+{
+ int step, line_step, pbytes, ret;
+ void *dst;
+
+ ret = check_bpix_support(vid_priv->bpix);
+ if (ret)
+ return ret;
+
+ pbytes = VNBYTES(vid_priv->bpix);
+ if (direction) {
+ step = -pbytes;
+ line_step = -vid_priv->line_length;
+ } else {
+ step = pbytes;
+ line_step = vid_priv->line_length;
+ }
+
+ for (int row = 0; row < VIDEO_FONT_HEIGHT; row++) {
+ dst = *line;
+ uchar bits = pfont[row];
+
+ for (int i = 0; i < VIDEO_FONT_WIDTH; i++) {
+ u32 value = (bits & 0x80) ?
+ vid_priv->colour_fg :
+ vid_priv->colour_bg;
+
+ fill_pixel_and_goto_next(&dst,
+ value,
+ pbytes,
+ step
+ );
+ bits <<= 1;
+ }
+ *line += line_step;
+ }
+ return ret;
+}
+
+static int console_probe(struct udevice *dev)
+{
+ struct vidconsole_priv *vc_priv = dev_get_uclass_priv(dev);
+ struct udevice *vid_dev = dev->parent;
+ struct video_priv *vid_priv = dev_get_uclass_priv(vid_dev);
+
+ vc_priv->x_charsize = VIDEO_FONT_WIDTH;
+ vc_priv->y_charsize = VIDEO_FONT_HEIGHT;
+ if (vid_priv->rot % 2) {
+ vc_priv->cols = vid_priv->ysize / VIDEO_FONT_WIDTH;
+ vc_priv->rows = vid_priv->xsize / VIDEO_FONT_HEIGHT;
+ vc_priv->xsize_frac = VID_TO_POS(vid_priv->ysize);
+ } else {
+ vc_priv->cols = vid_priv->xsize / VIDEO_FONT_WIDTH;
+ vc_priv->rows = vid_priv->ysize / VIDEO_FONT_HEIGHT;
+ }
+
+ return 0;
+}
--
2.30.2
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