git.y1.nz

commit 6b947c46bc69689292b109515bd9ce53bf2ba3ad
parent 893d7d162ac6b9656d4c87d3f3db3404e378044a
Author: Lior Halphon <LIJI32@gmail.com>
Date:   Sat,  9 Oct 2021 22:41:43 +0300

Correct blank image detection on SGB

Diffstat:
M
Tester/main.c
20
++++++++++++++++----

1 file changed, 16 insertions(+), 4 deletions(-)
diff --git a/Tester/main.c b/Tester/main.c
@@ -140,10 +140,22 @@ static void vblank(GB_gameboy_t *gb)
 
     if (frames >= test_length && !gb->disable_rendering) {
         bool is_screen_blank = true;
-        for (unsigned i = GB_get_screen_width(gb) * GB_get_screen_height(gb); i--;) {
-            if (bitmap[i] != bitmap[0]) {
-                is_screen_blank = false;
-                break;
+        if (!gb->sgb) {
+            for (unsigned i = 160 * 144; i--;) {
+                if (bitmap[i] != bitmap[0]) {
+                    is_screen_blank = false;
+                    break;
+                }
+            }
+        }
+        else {
+            if (gb->sgb->mask_mode == 0) {
+                for (unsigned i = 160 * 144; i--;) {
+                    if (gb->sgb->screen_buffer[i] != gb->sgb->screen_buffer[0]) {
+                        is_screen_blank = false;
+                        break;
+                    }
+                }
             }
         }
         

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