vh/HackBGRT
1
0
Fork 0
mirror of https://github.com/Metabolix/HackBGRT.git synced 2025-12-07 09:36:10 -08:00
Code Issues Actions Packages Projects Releases Wiki Activity

Fix a potentian null pointer reference

Browse Source 
If GOP is not available and there's no old_bmp, the coordinates can't
be automatically calculated.
This commit is contained in:
Lauri Kenttä
2016-05-14 10:51:21 +03:00
parent cc44e6eb9b
commit 9891039b06
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
src/main.c
View File

@@ -81,11 +81,11 @@ static void FillBGRT(ACPI_BGRT* bgrt, BMP* new_bmp, int new_x, int new_y) {
BMP* bmp = (BMP*) (UINTN) bgrt->image_address;
// Calculate the automatically centered position for the image.
int x_auto, y_auto;
int x_auto = 0, y_auto = 0;
if (GOP()) {
x_auto = max(0, ((int)GOP()->Mode->Info->HorizontalResolution - (int)bmp->width) / 2);
y_auto = max(0, ((int)GOP()->Mode->Info->VerticalResolution * 2/3 - (int)bmp->height) / 2);
} else {
} else if (old_bmp) {
x_auto = max(0, (int)bgrt0.image_offset_x + ((int)old_bmp->width - (int)bmp->width) / 2);
y_auto = max(0, (int)bgrt0.image_offset_y + ((int)old_bmp->height - (int)bmp->height) / 2);
}