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graphics: reintroduce flipped screens for fbdev

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Change-Id: Ide3510d2efc1c1b39c756691776938e42424b61d
This commit is contained in:
Ethan Yonker
2016-02-01 10:31:59 -06:00
parent 7509bc53ca
commit 871b07f7b4
1 changed files with 29 additions and 11 deletions
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minuitwrp/graphics_fbdev.cpp
+29 -11
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@@ -243,19 +243,20 @@ static GRSurface* fbdev_init(minui_backend* backend) {
}
static GRSurface* 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;
}
// 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
#ifndef BOARD_HAS_FLIPPED_SCREEN
if (double_buffered) {
// Copy from the in-memory surface to the framebuffer.
memcpy(gr_framebuffer[1-displayed_buffer].data, gr_draw->data,
gr_draw->height * gr_draw->row_bytes);
@@ -265,6 +266,23 @@ static GRSurface* fbdev_flip(minui_backend* backend __unused) {
memcpy(gr_framebuffer[0].data, gr_draw->data,
gr_draw->height * gr_draw->row_bytes);
}
#else
int gr_active_fb = 0;
if (double_buffered)
gr_active_fb = 1-displayed_buffer;
/* flip buffer 180 degrees for devices with physicaly inverted screens */
unsigned int i, j;
for (i = 0; i < vi.yres; i++) {
for (j = 0; j < vi.xres; j++) {
memcpy(gr_framebuffer[gr_active_fb].data + (i * vi.xres_virtual + j) * gr_framebuffer[0].pixel_bytes,
gr_draw->data + ((vi.yres - i - 1) * vi.xres_virtual + vi.xres - j - 1) * gr_framebuffer[0].pixel_bytes,
gr_framebuffer[0].pixel_bytes);
}
}
if (double_buffered)
set_displayed_framebuffer(1-displayed_buffer);
#endif
return gr_draw;
}