Proper console, run-time sim editing.

1 files changed, 12 insertions, 0 deletions

diff --git a/src/renderer.c b/src/renderer.c
index 3f01e88..d68287c 100644
--- a/src/renderer.c
+++ b/src/renderer.c
@@ -327,6 +327,12 @@ static int r_xsection_alloc(SDL_Renderer *renderer, SDL_Texture **texture,
 	int old_width, old_height;
 
 	if (*texture) {
+		if (!width || !height) {
+			SDL_DestroyTexture(*texture);
+			*texture = NULL;
+			return 0;
+		}
+
 		SDL_QueryTexture(*texture, NULL, NULL, &old_width, &old_height);
 
 		if (old_width != width || old_height != height) {
@@ -335,6 +341,9 @@ static int r_xsection_alloc(SDL_Renderer *renderer, SDL_Texture **texture,
 		}
 	}
 
+	if (!width || !height)
+		return 0;
+
 	if (!*texture) {
 		*texture = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_BGR888,
 		                             SDL_TEXTUREACCESS_STREAMING,
@@ -405,6 +414,9 @@ int r_xsection_update(r_window *rw, r_xsection *xsection, phy_sim *sim,
 		return 1;
 	}
 
+	if (!width || !height)
+		return 0;
+
 	SDL_LockTexture(xsection->texture, NULL, (void**)&pixels, &pitch);
 
 	if (flags & XSECTION_XY) {