mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-22 01:48:52 +09:00
![Simon Glass](/assets/img/avatar_default.png)
Adjust the bitmap code to sync to the copy framebuffer when done. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Anatolij Gustschin <agust@denx.de> Tested-by: Bin Meng <bmeng.cn@gmail.com>
387 lines
8.9 KiB
C
387 lines
8.9 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (c) 2015 Google, Inc
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <bmp_layout.h>
|
|
#include <dm.h>
|
|
#include <log.h>
|
|
#include <mapmem.h>
|
|
#include <splash.h>
|
|
#include <video.h>
|
|
#include <watchdog.h>
|
|
#include <asm/unaligned.h>
|
|
|
|
#ifdef CONFIG_VIDEO_BMP_RLE8
|
|
#define BMP_RLE8_ESCAPE 0
|
|
#define BMP_RLE8_EOL 0
|
|
#define BMP_RLE8_EOBMP 1
|
|
#define BMP_RLE8_DELTA 2
|
|
|
|
static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap,
|
|
int cnt)
|
|
{
|
|
while (cnt > 0) {
|
|
*(*fbp)++ = cmap[*bmap++];
|
|
cnt--;
|
|
}
|
|
}
|
|
|
|
static void draw_encoded_bitmap(ushort **fbp, ushort col, int cnt)
|
|
{
|
|
ushort *fb = *fbp;
|
|
|
|
while (cnt > 0) {
|
|
*fb++ = col;
|
|
cnt--;
|
|
}
|
|
*fbp = fb;
|
|
}
|
|
|
|
static void video_display_rle8_bitmap(struct udevice *dev,
|
|
struct bmp_image *bmp, ushort *cmap,
|
|
uchar *fb, int x_off, int y_off,
|
|
ulong width, ulong height)
|
|
{
|
|
struct video_priv *priv = dev_get_uclass_priv(dev);
|
|
uchar *bmap;
|
|
ulong cnt, runlen;
|
|
int x, y;
|
|
int decode = 1;
|
|
|
|
debug("%s\n", __func__);
|
|
bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset);
|
|
|
|
x = 0;
|
|
y = height - 1;
|
|
|
|
while (decode) {
|
|
if (bmap[0] == BMP_RLE8_ESCAPE) {
|
|
switch (bmap[1]) {
|
|
case BMP_RLE8_EOL:
|
|
/* end of line */
|
|
bmap += 2;
|
|
x = 0;
|
|
y--;
|
|
/* 16bpix, 2-byte per pixel, width should *2 */
|
|
fb -= (width * 2 + priv->line_length);
|
|
break;
|
|
case BMP_RLE8_EOBMP:
|
|
/* end of bitmap */
|
|
decode = 0;
|
|
break;
|
|
case BMP_RLE8_DELTA:
|
|
/* delta run */
|
|
x += bmap[2];
|
|
y -= bmap[3];
|
|
/* 16bpix, 2-byte per pixel, x should *2 */
|
|
fb = (uchar *)(priv->fb + (y + y_off - 1)
|
|
* priv->line_length + (x + x_off) * 2);
|
|
bmap += 4;
|
|
break;
|
|
default:
|
|
/* unencoded run */
|
|
runlen = bmap[1];
|
|
bmap += 2;
|
|
if (y < height) {
|
|
if (x < width) {
|
|
if (x + runlen > width)
|
|
cnt = width - x;
|
|
else
|
|
cnt = runlen;
|
|
draw_unencoded_bitmap(
|
|
(ushort **)&fb,
|
|
bmap, cmap, cnt);
|
|
}
|
|
x += runlen;
|
|
}
|
|
bmap += runlen;
|
|
if (runlen & 1)
|
|
bmap++;
|
|
}
|
|
} else {
|
|
/* encoded run */
|
|
if (y < height) {
|
|
runlen = bmap[0];
|
|
if (x < width) {
|
|
/* aggregate the same code */
|
|
while (bmap[0] == 0xff &&
|
|
bmap[2] != BMP_RLE8_ESCAPE &&
|
|
bmap[1] == bmap[3]) {
|
|
runlen += bmap[2];
|
|
bmap += 2;
|
|
}
|
|
if (x + runlen > width)
|
|
cnt = width - x;
|
|
else
|
|
cnt = runlen;
|
|
draw_encoded_bitmap((ushort **)&fb,
|
|
cmap[bmap[1]], cnt);
|
|
}
|
|
x += runlen;
|
|
}
|
|
bmap += 2;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
__weak void fb_put_byte(uchar **fb, uchar **from)
|
|
{
|
|
*(*fb)++ = *(*from)++;
|
|
}
|
|
|
|
#if defined(CONFIG_BMP_16BPP)
|
|
__weak void fb_put_word(uchar **fb, uchar **from)
|
|
{
|
|
*(*fb)++ = *(*from)++;
|
|
*(*fb)++ = *(*from)++;
|
|
}
|
|
#endif /* CONFIG_BMP_16BPP */
|
|
|
|
/**
|
|
* video_splash_align_axis() - Align a single coordinate
|
|
*
|
|
*- if a coordinate is 0x7fff then the image will be centred in
|
|
* that direction
|
|
*- if a coordinate is -ve then it will be offset to the
|
|
* left/top of the centre by that many pixels
|
|
*- if a coordinate is positive it will be used unchnaged.
|
|
*
|
|
* @axis: Input and output coordinate
|
|
* @panel_size: Size of panel in pixels for that axis
|
|
* @picture_size: Size of bitmap in pixels for that axis
|
|
*/
|
|
static void video_splash_align_axis(int *axis, unsigned long panel_size,
|
|
unsigned long picture_size)
|
|
{
|
|
long panel_picture_delta = panel_size - picture_size;
|
|
long axis_alignment;
|
|
|
|
if (*axis == BMP_ALIGN_CENTER)
|
|
axis_alignment = panel_picture_delta / 2;
|
|
else if (*axis < 0)
|
|
axis_alignment = panel_picture_delta + *axis + 1;
|
|
else
|
|
return;
|
|
|
|
*axis = max(0, (int)axis_alignment);
|
|
}
|
|
|
|
static void video_set_cmap(struct udevice *dev,
|
|
struct bmp_color_table_entry *cte, unsigned colours)
|
|
{
|
|
struct video_priv *priv = dev_get_uclass_priv(dev);
|
|
int i;
|
|
ushort *cmap = priv->cmap;
|
|
|
|
debug("%s: colours=%d\n", __func__, colours);
|
|
for (i = 0; i < colours; ++i) {
|
|
*cmap = ((cte->red << 8) & 0xf800) |
|
|
((cte->green << 3) & 0x07e0) |
|
|
((cte->blue >> 3) & 0x001f);
|
|
cmap++;
|
|
cte++;
|
|
}
|
|
}
|
|
|
|
int video_bmp_display(struct udevice *dev, ulong bmp_image, int x, int y,
|
|
bool align)
|
|
{
|
|
struct video_priv *priv = dev_get_uclass_priv(dev);
|
|
ushort *cmap_base = NULL;
|
|
int i, j;
|
|
uchar *start, *fb;
|
|
struct bmp_image *bmp = map_sysmem(bmp_image, 0);
|
|
uchar *bmap;
|
|
ushort padded_width;
|
|
unsigned long width, height, byte_width;
|
|
unsigned long pwidth = priv->xsize;
|
|
unsigned colours, bpix, bmp_bpix;
|
|
struct bmp_color_table_entry *palette;
|
|
int hdr_size;
|
|
int ret;
|
|
|
|
if (!bmp || !(bmp->header.signature[0] == 'B' &&
|
|
bmp->header.signature[1] == 'M')) {
|
|
printf("Error: no valid bmp image at %lx\n", bmp_image);
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
width = get_unaligned_le32(&bmp->header.width);
|
|
height = get_unaligned_le32(&bmp->header.height);
|
|
bmp_bpix = get_unaligned_le16(&bmp->header.bit_count);
|
|
hdr_size = get_unaligned_le16(&bmp->header.size);
|
|
debug("hdr_size=%d, bmp_bpix=%d\n", hdr_size, bmp_bpix);
|
|
palette = (void *)bmp + 14 + hdr_size;
|
|
|
|
colours = 1 << bmp_bpix;
|
|
|
|
bpix = VNBITS(priv->bpix);
|
|
|
|
if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) {
|
|
printf("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
|
|
bpix, bmp_bpix);
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
/*
|
|
* We support displaying 8bpp and 24bpp BMPs on 16bpp LCDs
|
|
* and displaying 24bpp BMPs on 32bpp LCDs
|
|
*/
|
|
if (bpix != bmp_bpix &&
|
|
!(bmp_bpix == 8 && bpix == 16) &&
|
|
!(bmp_bpix == 8 && bpix == 24) &&
|
|
!(bmp_bpix == 8 && bpix == 32) &&
|
|
!(bmp_bpix == 24 && bpix == 16) &&
|
|
!(bmp_bpix == 24 && bpix == 32)) {
|
|
printf("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
|
|
bpix, get_unaligned_le16(&bmp->header.bit_count));
|
|
return -EPERM;
|
|
}
|
|
|
|
debug("Display-bmp: %d x %d with %d colours, display %d\n",
|
|
(int)width, (int)height, (int)colours, 1 << bpix);
|
|
|
|
if (bmp_bpix == 8)
|
|
video_set_cmap(dev, palette, colours);
|
|
|
|
padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width);
|
|
|
|
if (align) {
|
|
video_splash_align_axis(&x, priv->xsize, width);
|
|
video_splash_align_axis(&y, priv->ysize, height);
|
|
}
|
|
|
|
if ((x + width) > pwidth)
|
|
width = pwidth - x;
|
|
if ((y + height) > priv->ysize)
|
|
height = priv->ysize - y;
|
|
|
|
bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset);
|
|
start = (uchar *)(priv->fb +
|
|
(y + height) * priv->line_length + x * bpix / 8);
|
|
|
|
/* Move back to the final line to be drawn */
|
|
fb = start - priv->line_length;
|
|
|
|
switch (bmp_bpix) {
|
|
case 1:
|
|
case 8: {
|
|
struct bmp_color_table_entry *cte;
|
|
cmap_base = priv->cmap;
|
|
#ifdef CONFIG_VIDEO_BMP_RLE8
|
|
u32 compression = get_unaligned_le32(&bmp->header.compression);
|
|
debug("compressed %d %d\n", compression, BMP_BI_RLE8);
|
|
if (compression == BMP_BI_RLE8) {
|
|
if (bpix != 16) {
|
|
/* TODO implement render code for bpix != 16 */
|
|
printf("Error: only support 16 bpix");
|
|
return -EPROTONOSUPPORT;
|
|
}
|
|
video_display_rle8_bitmap(dev, bmp, cmap_base, fb, x,
|
|
y, width, height);
|
|
break;
|
|
}
|
|
#endif
|
|
byte_width = width * (bpix / 8);
|
|
if (!byte_width)
|
|
byte_width = width;
|
|
|
|
for (i = 0; i < height; ++i) {
|
|
WATCHDOG_RESET();
|
|
for (j = 0; j < width; j++) {
|
|
if (bpix == 8) {
|
|
fb_put_byte(&fb, &bmap);
|
|
} else if (bpix == 16) {
|
|
*(uint16_t *)fb = cmap_base[*bmap];
|
|
bmap++;
|
|
fb += sizeof(uint16_t) / sizeof(*fb);
|
|
} else {
|
|
/* Only support big endian */
|
|
cte = &palette[*bmap];
|
|
bmap++;
|
|
if (bpix == 24) {
|
|
*(fb++) = cte->red;
|
|
*(fb++) = cte->green;
|
|
*(fb++) = cte->blue;
|
|
} else {
|
|
*(fb++) = cte->blue;
|
|
*(fb++) = cte->green;
|
|
*(fb++) = cte->red;
|
|
*(fb++) = 0;
|
|
}
|
|
}
|
|
}
|
|
bmap += (padded_width - width);
|
|
fb -= byte_width + priv->line_length;
|
|
}
|
|
break;
|
|
}
|
|
#if defined(CONFIG_BMP_16BPP)
|
|
case 16:
|
|
for (i = 0; i < height; ++i) {
|
|
WATCHDOG_RESET();
|
|
for (j = 0; j < width; j++)
|
|
fb_put_word(&fb, &bmap);
|
|
|
|
bmap += (padded_width - width) * 2;
|
|
fb -= width * 2 + priv->line_length;
|
|
}
|
|
break;
|
|
#endif /* CONFIG_BMP_16BPP */
|
|
#if defined(CONFIG_BMP_24BPP)
|
|
case 24:
|
|
for (i = 0; i < height; ++i) {
|
|
for (j = 0; j < width; j++) {
|
|
if (bpix == 16) {
|
|
/* 16bit 555RGB format */
|
|
*(u16 *)fb = ((bmap[2] >> 3) << 10) |
|
|
((bmap[1] >> 3) << 5) |
|
|
(bmap[0] >> 3);
|
|
bmap += 3;
|
|
fb += 2;
|
|
} else {
|
|
*(fb++) = *(bmap++);
|
|
*(fb++) = *(bmap++);
|
|
*(fb++) = *(bmap++);
|
|
*(fb++) = 0;
|
|
}
|
|
}
|
|
fb -= priv->line_length + width * (bpix / 8);
|
|
bmap += (padded_width - width) * 3;
|
|
}
|
|
break;
|
|
#endif /* CONFIG_BMP_24BPP */
|
|
#if defined(CONFIG_BMP_32BPP)
|
|
case 32:
|
|
for (i = 0; i < height; ++i) {
|
|
for (j = 0; j < width; j++) {
|
|
*(fb++) = *(bmap++);
|
|
*(fb++) = *(bmap++);
|
|
*(fb++) = *(bmap++);
|
|
*(fb++) = *(bmap++);
|
|
}
|
|
fb -= priv->line_length + width * (bpix / 8);
|
|
}
|
|
break;
|
|
#endif /* CONFIG_BMP_32BPP */
|
|
default:
|
|
break;
|
|
};
|
|
|
|
/* Find the position of the top left of the image in the framebuffer */
|
|
fb = (uchar *)(priv->fb + y * priv->line_length + x * bpix / 8);
|
|
ret = video_sync_copy(dev, start, fb);
|
|
if (ret)
|
|
return log_ret(ret);
|
|
|
|
video_sync(dev, false);
|
|
|
|
return 0;
|
|
}
|
|
|