From 642bdfd2d79c5f13a63397d281ec8092dbf5b288 Mon Sep 17 00:00:00 2001
From: Andrei Alexeyev <akari@taisei-project.org>
Date: Tue, 9 Jun 2020 03:18:40 +0300
Subject: [PATCH] portrait_render: make sure to not pass 0 as viewport
 width/height

That would trip an assertion. May happen with the null renderer (e.g.
replay verification mode), where the fake textures are always 1x1, or
with bad sprite data.
---
 src/portrait.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/portrait.c b/src/portrait.c
index 8bdea2ae..bf3506df 100644
--- a/src/portrait.c
+++ b/src/portrait.c
@@ -59,8 +59,8 @@ void portrait_render(Sprite *s_base, Sprite *s_face, Sprite *s_out) {
 
 	IntRect itc = sprite_denormalized_int_tex_coords(s_base);
 
-	uint tex_w = itc.w;
-	uint tex_h = itc.h;
+	uint tex_w = imax(itc.w, 1);
+	uint tex_h = imax(itc.h, 1);
 	uint spr_w = s_base->extent.w;
 	uint spr_h = s_base->extent.h;