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waveshare: fix multiple issues in BMP RGB handling

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This commit is contained in:
Philippe Teuwen 2020-09-14 00:14:19 +02:00
commit b4aebd140a
1 changed files with 5 additions and 3 deletions
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8
client/src/cmdhfwaveshare.c
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@ -195,14 +195,14 @@ static int read_bmp_rgb(const uint8_t *bmp, const size_t bmpsize, uint8_t **blac
for (X = 0; X < pbmpheader->BMP_Width; X++) { // lines
B = bmp[offset++];
G = bmp[offset++];
G = bmp[offset++];
if (R < 30 && G < 30 && B < 30) {
R = bmp[offset++];
if (R < 128 && G < 128 && B < 128) {
Black_data = Black_data | (1);
} else if (R > 190 && G < 90 && B < 90) {
Red_data = Red_data | (1);
}
count++;
if (count >= 8) {
if ((count >= 8) || (X == pbmpheader->BMP_Width - 1)) {
(*black)[X / 8 + (pbmpheader->BMP_Height - Y - 1) * Image_Width_Byte] = ~Black_data;
(*red)[X / 8 + (pbmpheader->BMP_Height - Y - 1) * Image_Width_Byte] = ~Red_data;
count = 0;
@ -212,6 +212,8 @@ static int read_bmp_rgb(const uint8_t *bmp, const size_t bmpsize, uint8_t **blac
Black_data = Black_data << 1;
Red_data = Red_data << 1;
}
// Skip BMP line padding
offset+=(((pbmpheader->BMP_Width*3/4)+1)*4)-pbmpheader->BMP_Width*3;
}
return PM3_SUCCESS;
}