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#include <stddef.h>
#include <stdint.h>
#include <stdlib.h>
#include "ISP583.h"
#include "data.h"
#include "leddrv.h"
uint32_t bigendian16_sum(uint16_t *s, int len)
{
uint32_t sum = 0;
while (len-- > 0) {
sum += bswap16(s[len]);
}
return sum;
}
uint32_t data_flatSave(uint8_t *data, uint32_t len)
{
uint32_t r = EEPROM_ERASE(0, len);
if (r)
return r;
return EEPROM_WRITE(0, data, len);
}
data_legacy_t *data_get_header(int read_anyway)
{
static data_legacy_t *cache;
if (cache == NULL) {
cache = malloc(sizeof(data_legacy_t));
read_anyway = 1;
}
if (read_anyway) {
EEPROM_READ(0, cache, LEGACY_HEADER_SIZE);
}
return cache;
}
uint16_t data_flash2newmem(uint8_t **chunk, uint32_t n)
{
data_legacy_t *header = data_get_header(0);
if (memcmp(header->header, "wang", 5))
return 0;
uint16_t size = bswap16(header->sizes[n]) * LED_ROWS;
if (size == 0)
return 0;
uint16_t offs = LEGACY_HEADER_SIZE
+ bigendian16_sum(header->sizes, n) * LED_ROWS;
*chunk = malloc(size);
EEPROM_READ(offs, *chunk, size);
return size;
}
static void __chunk2buffer(uint16_t *bm, uint8_t *chunk, int col)
{
uint16_t tmpbm[8] = {0};
for (int i=0; i<8; i++) {
for (int j=0; j<11; j++) {
tmpbm[i] |= ((chunk[j] >> (7-i)) & 0x01) << j;
}
}
for (int i=0; i<8; i++) {
bm[col+i] = tmpbm[i];
}
}
void chunk2buffer(uint8_t *chunk, uint16_t size, uint16_t *buf)
{
for (int i=0; i<size/11; i++) {
__chunk2buffer(buf, &chunk[i*11], 8 * i);
}
}
void chunk2bm(uint8_t *chunk, uint16_t size, bm_t *bm)
{
chunk2buffer(chunk, size, bm->buf);
}
bm_t *chunk2newbm(uint8_t *chunk, uint16_t size)
{
bm_t *bm = bm_new((size*8)/11);
chunk2bm(chunk, size, bm);
return bm;
}
bm_t *flash2newbm(uint32_t n)
{
uint8_t *buf;
uint16_t size = data_flash2newmem(&buf, n);
if (size == 0)
return NULL;
bm_t *bm = chunk2newbm(buf, size);
data_legacy_t *header = data_get_header(0);
bm->is_flash = (header->flash & (1 << n)) != 0;
bm->is_marquee = (header->marquee & (1 << n)) != 0;
bm->modes = header->modes[n];
free(buf);
return bm;
}
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