From e7ba91d1824bb94937cb024d41a4f8543c23f9b2 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Mon, 4 Sep 2023 07:18:39 +0530
Subject: [PATCH] Skip zero group_count images in draw_graphics()

Good to be defensive, ensures no infinite loop.
---
 kitty/shaders.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kitty/shaders.c b/kitty/shaders.c
index 5e23f6e0e..e8c01acd7 100644
--- a/kitty/shaders.c
+++ b/kitty/shaders.c
@@ -481,6 +481,7 @@ draw_graphics(int program, ssize_t vao_idx, ImageRenderData *data, GLuint start,
     for (GLuint i=0; i < count;) {
         ImageRenderData *group = data + start + i;
         glBindTexture(GL_TEXTURE_2D, group->texture_id);
+        if (group->group_count == 0) { i++; continue; }
         for (GLuint k=0; k < group->group_count; k++, i++) {
             ImageRenderData *rd = data + start + i;
             glUniform4f(u->src_rect, rd->src_rect.left, rd->src_rect.top, rd->src_rect.right, rd->src_rect.bottom);