mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-06 11:16:15 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
353 lines
8.0 KiB
C
353 lines
8.0 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (c) 2015 Google, Inc
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <bmp_layout.h>
|
|
#include <dm.h>
|
|
#include <mapmem.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)
|
|
{
|
|
struct video_priv *priv = dev_get_uclass_priv(dev);
|
|
uchar *bmap;
|
|
ulong width, height;
|
|
ulong cnt, runlen;
|
|
int x, y;
|
|
int decode = 1;
|
|
|
|
debug("%s\n", __func__);
|
|
width = get_unaligned_le32(&bmp->header.width);
|
|
height = get_unaligned_le32(&bmp->header.height);
|
|
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 */
|
|
|
|
#define BMP_ALIGN_CENTER 0x7fff
|
|
|
|
/**
|
|
* 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)
|
|
{
|
|
unsigned long panel_picture_delta = panel_size - picture_size;
|
|
unsigned 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 *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;
|
|
|
|
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 BMPs on 16bpp LCDs
|
|
* and displaying 24bpp BMPs on 32bpp LCDs
|
|
* */
|
|
if (bpix != bmp_bpix &&
|
|
!(bmp_bpix == 8 && 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);
|
|
fb = (uchar *)(priv->fb +
|
|
(y + height - 1) * priv->line_length + x * bpix / 8);
|
|
|
|
switch (bmp_bpix) {
|
|
case 1:
|
|
case 8: {
|
|
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);
|
|
break;
|
|
}
|
|
#endif
|
|
|
|
if (bpix != 16)
|
|
byte_width = width;
|
|
else
|
|
byte_width = width * 2;
|
|
|
|
for (i = 0; i < height; ++i) {
|
|
WATCHDOG_RESET();
|
|
for (j = 0; j < width; j++) {
|
|
if (bpix != 16) {
|
|
fb_put_byte(&fb, &bmap);
|
|
} else {
|
|
*(uint16_t *)fb = cmap_base[*bmap];
|
|
bmap++;
|
|
fb += sizeof(uint16_t) / sizeof(*fb);
|
|
}
|
|
}
|
|
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++) {
|
|
*(fb++) = *(bmap++);
|
|
*(fb++) = *(bmap++);
|
|
*(fb++) = *(bmap++);
|
|
*(fb++) = 0;
|
|
}
|
|
fb -= priv->line_length + width * (bpix / 8);
|
|
}
|
|
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;
|
|
};
|
|
|
|
video_sync(dev);
|
|
|
|
return 0;
|
|
}
|
|
|