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waveshare: tolerate (but ignore) alpha channel

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This commit is contained in:
Philippe Teuwen 2020-10-19 21:25:24 +02:00
parent daabdf2e31
commit 8d14b46232
1 changed files with 13 additions and 5 deletions
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18
client/src/cmdhfwaveshare.c
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@ -351,7 +351,7 @@ static void map8to1(uint8_t *colormap, uint16_t width, uint16_t height, uint8_t
static int read_bmp_rgb(uint8_t *bmp, const size_t bmpsize, uint8_t model_nr, uint8_t **black, uint8_t **red, char *filename, bool save_conversions) {
BMP_HEADER *pbmpheader = (BMP_HEADER *)bmp;
// check file is full color
if (pbmpheader->bpp != 24) {
if ((pbmpheader->bpp != 24) && (pbmpheader->bpp != 32)) {
return PM3_ESOFT;
}
@ -400,6 +400,8 @@ static int read_bmp_rgb(uint8_t *bmp, const size_t bmpsize, uint8_t model_nr, ui
chanB[X + (height - Y - 1) * width] = bmp[offset++];
chanG[X + (height - Y - 1) * width] = bmp[offset++];
chanR[X + (height - Y - 1) * width] = bmp[offset++];
if (pbmpheader->bpp == 32) // Skip Alpha chan
offset++;
}
// Skip line padding
offset += width % 4;
@ -436,6 +438,8 @@ static int read_bmp_rgb(uint8_t *bmp, const size_t bmpsize, uint8_t model_nr, ui
bmp[offset++] = chanB[X + (height - Y - 1) * width] & 0xFF;
bmp[offset++] = chanG[X + (height - Y - 1) * width] & 0xFF;
bmp[offset++] = chanR[X + (height - Y - 1) * width] & 0xFF;
if (pbmpheader->bpp == 32) // Fill Alpha chan
bmp[offset++] = 0xFF;
}
// Skip line padding
offset += width % 4;
@ -500,6 +504,8 @@ static int read_bmp_rgb(uint8_t *bmp, const size_t bmpsize, uint8_t model_nr, ui
bmp[offset++] = chanGrey[X + (height - Y - 1) * width] & 0xFF;
bmp[offset++] = chanGrey[X + (height - Y - 1) * width] & 0xFF;
bmp[offset++] = chanGrey[X + (height - Y - 1) * width] & 0xFF;
if (pbmpheader->bpp == 32) // Fill Alpha chan
bmp[offset++] = 0xFF;
}
// Skip line padding
offset += width % 4;
@ -1059,11 +1065,13 @@ static int CmdHF14AWSLoadBmp(const char *Cmd) {
return PM3_ESOFT;
}
} else if (depth == 32) {
PrintAndLogEx(ERR, "Error, BMP color depth %i not supported. Remove alpha channel.", depth);
free(bmp);
return PM3_ESOFT;
PrintAndLogEx(DEBUG, "BMP file is a RGBA, we will ignore the Alpha channel");
if (read_bmp_rgb(bmp, bytes_read, model_nr, &black, &red, filename, save_conversions) != PM3_SUCCESS) {
free(bmp);
return PM3_ESOFT;
}
} else {
PrintAndLogEx(ERR, "Error, BMP color depth %i not supported. Must be 1 (BW) or 24 (RGB)", depth);
PrintAndLogEx(ERR, "Error, BMP color depth %i not supported. Must be 1 (BW), 24 (RGB) or 32 (RGBA)", depth);
free(bmp);
return PM3_ESOFT;
}