nemunaire/waveshareteam-e-Paper
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Update GUI_BMPfile.c

Browse source 
This is present in all GUI_BMPFiles.  It causes a segfault.  You don't need to multiply the index by 4, C takes care of this for you already.  The previous code will write beyond the bounds of the array.
This commit is contained in:
Simon Spooner 2019-03-27 14:04:41 -07:00 • committed by GitHub
commit 3afa0a3ad6
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 1 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

2
2.7inch_e-paper_code/bcm2835/obj/GUI_BMPfile.c
View file

@ -84,7 +84,7 @@ UBYTE GUI_ReadBmp(const char *path, UWORD Xstart, UWORD Ystart)
BMPRGBQUAD bmprgbquad[bmprgbquadsize]; //palette BMPRGBQUAD bmprgbquad[bmprgbquadsize]; //palette
for(i = 0; i < bmprgbquadsize; i++){ for(i = 0; i < bmprgbquadsize; i++){
fread(&bmprgbquad[i * 4], sizeof(BMPRGBQUAD), 1, fp); fread(&bmprgbquad[i], sizeof(BMPRGBQUAD), 1, fp);
} }
if(bmprgbquad[0].rgbBlue == 0xff && bmprgbquad[0].rgbGreen == 0xff && bmprgbquad[0].rgbRed == 0xff){ if(bmprgbquad[0].rgbBlue == 0xff && bmprgbquad[0].rgbGreen == 0xff && bmprgbquad[0].rgbRed == 0xff){
Bcolor = BLACK; Bcolor = BLACK;