From d50385e8d5c99e2feeb6169f8e16b079acf23002 Mon Sep 17 00:00:00 2001
From: Stefan Haun <tux@netz39.de>
Date: Sun, 6 Oct 2019 13:45:21 +0200
Subject: [PATCH] Check for BPP in display.c:compositor()
---
epicardium/modules/display.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/epicardium/modules/display.c b/epicardium/modules/display.c
index 8d309169..f8c34ea7 100644
--- a/epicardium/modules/display.c
+++ b/epicardium/modules/display.c
@@ -3,6 +3,7 @@
#include "FreeRTOS.h"
#include "LCD_Driver.h"
#include "epicardium.h"
+#include "framebuffer.h"
#include "gfx.h"
#include "gpio.h"
#include "task.h"
@@ -181,6 +182,15 @@ int epic_disp_circ(
void compositor()
{
+ /* Check that BPP is 2 for everything */
+ const size_t bpp_app = fb_bytes_per_pixel(application_screen.fb);
+ const size_t bpp_ovl = fb_bytes_per_pixel(overlay_screen.fb);
+ const size_t bpp_disp = fb_bytes_per_pixel(overlay_screen.fb);
+
+ if ((bpp_app != 2) || (bpp_ovl != 2) || (bpp_disp != 2))
+ return;
+
+ /* Compose overlay on application */
for (int y = 0; y < display_screen.height; y++) {
for (int x = 0; x < display_screen.width; x++) {
uint8_t *overlay_pixel =
--
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