Merge pull request #49 from zao/fix/check-cfg-window-size

fix: clamp saved window size to minimum size

Author: Wires77

engine/core/core_video.cpp

@@ -92,6 +92,9 @@ void core_video_c::Apply(bool shown)
 			set.flags|= VID_MAXIMIZE;
 		} else if (vid_resizable->intVal == 3) {
 			if (sscanf(vid_last->strVal.c_str(), "%d,%d,%d,%d,%d", set.save.size + 0, set.save.size + 1, set.save.pos + 0, set.save.pos + 1, (int*)&set.save.maximised) == 5) {
+				// Clamp saved window size as it may be persisted as zero before.
+				set.save.size[0] = (std::max)(CFG_VID_MINWIDTH, set.save.size[0]);
+				set.save.size[1] = (std::max)(CFG_VID_MINHEIGHT, set.save.size[1]);
 				set.flags|= VID_USESAVED;
 			} else {
 				set.flags|= VID_MAXIMIZE;

engine/system/win/sys_video.cpp

@@ -604,15 +604,21 @@ void sys_video_c::FramebufferSizeChanged(int width, int height) {
 
 void sys_video_c::SizeChanged(int width, int height, bool max)
 {
-	vid.size[0] = width;
-	vid.size[1] = height;
-	vid.maximised = max;
+	// Avoid persisting an invalid window size from being minimized.
+	if (!glfwGetWindowAttrib(wnd, GLFW_ICONIFIED)) {
+		vid.size[0] = width;
+		vid.size[1] = height;
+		vid.maximised = max;
+	}
 }
 
 void sys_video_c::PosChanged(int x, int y)
 {
-	vid.pos[0] = x;
-	vid.pos[1] = y;
+	// Avoid persisting an invalid window location from being minimized.
+	if (!glfwGetWindowAttrib(wnd, GLFW_ICONIFIED)) {
+		vid.pos[0] = x;
+		vid.pos[1] = y;
+	}
 }
 
 void sys_video_c::GetMinSize(int& width, int& height)