tequilaOS/platform_bootable_recovery
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Byte swap to support BGRA in recovery mode

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Fixes color palate of recovery mode when double buffer enabled.

Bug: 18169447
Change-Id: Ia50b0fb9afd8001dfd740c09ce109fa421e691f7
This commit is contained in:
Heather Lee Wilson 2014-11-14 09:57:54 -08:00
parent be81e51c17
commit e5879c3639
1 changed files with 12 additions and 0 deletions
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12
minui/graphics_fbdev.c
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@ -179,6 +179,18 @@ static gr_surface fbdev_init(minui_backend* backend) {
static gr_surface fbdev_flip(minui_backend* backend __unused) {
if (double_buffered) {
#if defined(RECOVERY_BGRA)
// In case of BGRA, do some byte swapping
unsigned int idx;
unsigned char tmp;
unsigned char* ucfb_vaddr = (unsigned char*)gr_draw->data;
for (idx = 0 ; idx < (gr_draw->height * gr_draw->row_bytes);
idx += 4) {
tmp = ucfb_vaddr[idx];
ucfb_vaddr[idx ] = ucfb_vaddr[idx + 2];
ucfb_vaddr[idx + 2] = tmp;
}
#endif
// Change gr_draw to point to the buffer currently displayed,
// then flip the driver so we're displaying the other buffer
// instead.