采集卡bug修复
This commit is contained in:
80
preview.py
80
preview.py
@@ -194,8 +194,9 @@ class PreviewWindow:
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canvas = Canvas(root, bg='black', width=preview_width, height=preview_height)
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canvas.pack(fill=tk.BOTH, expand=True)
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# 存储图像对象
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self.photo_objects = {}
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# 存储图像对象(使用列表保存所有PhotoImage引用,防止GC)
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self.photo_objects_list = []
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self.photo_objects = {} # 按索引映射
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# 用于控制调试输出(只打印前几次)
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self.debug_count = 0
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@@ -219,10 +220,27 @@ class PreviewWindow:
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root.after(33, update_frames_once)
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return
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# 重新读取配置,确保获取最新值(修复配置读取问题)
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config_manager.load_config()
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display = config_manager.config.get('display', {})
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current_preview_width = display.get('preview_width', 1000)
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current_preview_height = display.get('preview_height', 700)
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current_columns = display.get('preview_columns', 2)
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current_rows = display.get('preview_rows', 2)
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# 验证配置值是否有效
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if current_preview_width < 100 or current_preview_height < 100:
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current_preview_width = 1000
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current_preview_height = 700
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if current_columns < 1 or current_columns > 10:
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current_columns = 2
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if current_rows < 1 or current_rows > 10:
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current_rows = 2
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# 计算每个预览窗口的位置和大小
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# 直接使用配置值作为画布尺寸(macOS上窗口尺寸可能在显示前返回默认值)
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canvas_width = preview_width
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canvas_height = preview_height
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# 直接使用配置值作为画布尺寸
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canvas_width = current_preview_width
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canvas_height = current_preview_height
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# 尝试获取实际的窗口尺寸,如果有效则使用(大于配置值说明可能被手动调整了)
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try:
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@@ -237,8 +255,8 @@ class PreviewWindow:
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except:
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pass # 如果获取失败,使用配置值
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cell_width = max(10, canvas_width // columns)
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cell_height = max(10, canvas_height // rows)
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cell_width = max(10, canvas_width // current_columns)
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cell_height = max(10, canvas_height // current_rows)
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# 先收集所有需要显示的图像
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images_to_draw = []
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@@ -250,8 +268,8 @@ class PreviewWindow:
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texts_to_draw.append((canvas_width // 2, canvas_height // 2, "未找到采集卡", 'red'))
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for idx in self.caps.keys():
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row = frame_idx // columns
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col = frame_idx % columns
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row = frame_idx // current_columns
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col = frame_idx % current_columns
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x = col * cell_width
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y = row * cell_height
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center_x = x + cell_width // 2
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@@ -289,7 +307,7 @@ class PreviewWindow:
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self.debug_count += 1
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if self.debug_count <= 3: # 只打印前3次
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print(f"🔍 预览调试 #{self.debug_count}:")
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print(f" 配置尺寸: {preview_width}x{preview_height}")
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print(f" 配置尺寸: {current_preview_width}x{current_preview_height}")
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print(f" 实际画布: {canvas_width}x{canvas_height}")
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print(f" 单元格大小: {cell_width}x{cell_height}")
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print(f" 原始帧: {w}x{h}")
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@@ -303,8 +321,10 @@ class PreviewWindow:
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resized_frame = cv2.cvtColor(resized_frame, cv2.COLOR_BGR2RGB)
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pil_image = Image.fromarray(resized_frame)
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photo = ImageTk.PhotoImage(image=pil_image)
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# 保持引用,避免被GC
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self.photo_objects[idx] = photo
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# 多重引用保护,防止被GC回收
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self.photo_objects[idx] = photo # 按索引保存
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self.photo_objects_list.append(photo) # 在列表中保存(防止GC)
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images_to_draw.append((photo, center_x, center_y))
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texts_to_draw.append((center_x, y + 15, name, 'white'))
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@@ -324,21 +344,26 @@ class PreviewWindow:
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texts_to_draw.append((center_x, center_y, f"{name}\n等待画面...", 'gray'))
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frame_idx += 1
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# 清空画布
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# 清空画布(保留photo引用,只清空画布内容)
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canvas.delete("all")
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# 先绘制所有图像(底层)
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if self.debug_count <= 3:
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print(f"📊 绘制状态: {len(images_to_draw)} 个图像, {len(texts_to_draw)} 个文本, 画布={canvas_width}x{canvas_height}")
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print(f" 当前保存的照片对象数量: {len(self.photo_objects_list)}")
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if images_to_draw:
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# 创建一个临时列表保存所有photo引用,防止在绘制时被GC
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photos_to_keep = []
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for i, (photo, x, y) in enumerate(images_to_draw):
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try:
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# 确保坐标在画布范围内
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if 0 <= x <= canvas_width and 0 <= y <= canvas_height:
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# 在绘制前保存引用
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photos_to_keep.append(photo)
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canvas.create_image(x, y, image=photo, anchor='center')
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if self.debug_count <= 3 and i == 0:
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print(f" 绘制图像 #{i} 到位置 ({x}, {y})")
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print(f" 绘制图像 #{i} 到位置 ({x}, {y}), photo id: {id(photo)}")
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else:
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if self.debug_count <= 3:
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print(f" ⚠️ 图像 #{i} 位置 ({x}, {y}) 超出画布范围")
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@@ -346,6 +371,13 @@ class PreviewWindow:
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print(f" 绘制图像 #{i} 错误: {e}")
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import traceback
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traceback.print_exc()
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# 确保照片对象不被回收(保存引用到实例变量)
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# 只保留最近的一批照片对象,避免内存泄漏
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self.photo_objects_list = photos_to_keep[:] # 复制列表
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# 限制列表大小,只保留最近的20个对象
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if len(self.photo_objects_list) > 20:
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self.photo_objects_list = self.photo_objects_list[-20:]
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else:
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# 如果没有图像,至少显示一些提示
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if self.debug_count <= 3:
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@@ -377,7 +409,7 @@ class PreviewWindow:
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# 绘制分割线,区分不同的采集卡窗口
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try:
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# 绘制垂直分割线(列之间的分割线)
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for col in range(1, columns):
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for col in range(1, current_columns):
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x = col * cell_width
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canvas.create_line(
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x, 0,
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@@ -388,7 +420,7 @@ class PreviewWindow:
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)
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# 绘制水平分割线(行之间的分割线)
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for row in range(1, rows):
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for row in range(1, current_rows):
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y = row * cell_height
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canvas.create_line(
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0, y,
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@@ -409,14 +441,20 @@ class PreviewWindow:
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def on_canvas_click(event):
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"""点击画布事件"""
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window_width = root.winfo_width()
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window_height = root.winfo_height()
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cell_width = window_width // columns
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cell_height = window_height // rows
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# 重新读取配置以获取最新的columns和rows
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config_manager.load_config()
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display = config_manager.config.get('display', {})
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click_columns = display.get('preview_columns', 2)
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click_rows = display.get('preview_rows', 2)
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window_width = root.winfo_width() if root.winfo_width() > 1 else preview_width
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window_height = root.winfo_height() if root.winfo_height() > 1 else preview_height
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cell_width = window_width // click_columns
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cell_height = window_height // click_rows
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col = int(event.x // cell_width)
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row = int(event.y // cell_height)
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index = row * columns + col
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index = row * click_columns + col
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# 找到对应的配置
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if index < len(self.caps):
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