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Commit e5879c36 authored by Heather Lee Wilson's avatar Heather Lee Wilson
Browse files

Byte swap to support BGRA in recovery mode 

Fixes color palate of recovery mode when double buffer enabled.

Bug: 18169447
Change-Id: Ia50b0fb9afd8001dfd740c09ce109fa421e691f7
parent be81e51c

minui/graphics_fbdev.c

+12 −0
Original line number Diff line number Diff line
@@ -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.