diff --git a/src/platform/android/VideoSurface.h b/src/platform/android/VideoSurface.h
index ba57c88795..d52995acd7 100644
--- a/src/platform/android/VideoSurface.h
+++ b/src/platform/android/VideoSurface.h
@@ -28,10 +28,6 @@ class OESTexture : public tgfx::GLTexture {
 
   tgfx::Point getTextureCoord(float x, float y) const override;
 
-  size_t memoryUsage() const override {
-    return 0;
-  }
-
  protected:
   void onRelease(tgfx::Context* context) override;
 
diff --git a/src/rendering/caches/TextAtlas.cpp b/src/rendering/caches/TextAtlas.cpp
index bae2bcf117..4703225277 100644
--- a/src/rendering/caches/TextAtlas.cpp
+++ b/src/rendering/caches/TextAtlas.cpp
@@ -21,6 +21,7 @@
 #include "core/Mask.h"
 #include "gpu/Canvas.h"
 #include "gpu/Surface.h"
+#include "gpu/opengl/GLTexture.h"
 
 namespace pag {
 class Atlas {
@@ -103,11 +104,15 @@ class RectanglePack {
 };
 
 size_t Atlas::memoryUsage() const {
+  if (textures.empty()) {
+    return 0;
+  }
   size_t usage = 0;
   for (auto& texture : textures) {
-    usage += texture->memoryUsage();
+    usage += texture->width() * texture->height();
   }
-  return usage;
+  auto bytesPerPixels = textures[0]->getSampler()->format == tgfx::PixelFormat::ALPHA_8 ? 1 : 4;
+  return usage * bytesPerPixels;
 }
 
 static tgfx::PaintStyle ToTGFX(TextStyle style) {
diff --git a/src/rendering/graphics/Snapshot.cpp b/src/rendering/graphics/Snapshot.cpp
index a4144a21bc..98154d0764 100644
--- a/src/rendering/graphics/Snapshot.cpp
+++ b/src/rendering/graphics/Snapshot.cpp
@@ -22,6 +22,17 @@
 #include "rendering/caches/RenderCache.h"
 
 namespace pag {
+
+size_t Snapshot::memoryUsage() const {
+  float bytesPerPixels;
+  if (texture->isYUV()) {
+    bytesPerPixels = 1.5f;
+  } else {
+    bytesPerPixels = texture->getSampler()->format == tgfx::PixelFormat::ALPHA_8 ? 1 : 4;
+  }
+  return static_cast<size_t>(texture->width() * texture->height() * bytesPerPixels);
+}
+
 bool Snapshot::hitTest(RenderCache* cache, float x, float y) const {
   tgfx::Point local = {x, y};
   if (!MapPointInverted(matrix, &local)) {
diff --git a/src/rendering/graphics/Snapshot.h b/src/rendering/graphics/Snapshot.h
index 01e571663f..3be1e17572 100644
--- a/src/rendering/graphics/Snapshot.h
+++ b/src/rendering/graphics/Snapshot.h
@@ -56,9 +56,7 @@ class Snapshot {
   /**
    * Returns memory usage information for this Snapshot.
    */
-  size_t memoryUsage() const {
-    return texture->memoryUsage();
-  }
+  size_t memoryUsage() const;
 
   /**
    * Evaluates the Snapshot to see if it overlaps or intersects with the specified point. The point
diff --git a/tgfx/include/gpu/Texture.h b/tgfx/include/gpu/Texture.h
index 0d61117a7b..04aafeee02 100644
--- a/tgfx/include/gpu/Texture.h
+++ b/tgfx/include/gpu/Texture.h
@@ -102,11 +102,6 @@ class Texture : public Resource {
    */
   virtual Point getTextureCoord(float x, float y) const = 0;
 
-  /**
-   * Returns memory usage information for this Texture.
-   */
-  virtual size_t memoryUsage() const = 0;
-
   /**
    * Returns the default texture sampler.
    */
diff --git a/tgfx/src/gpu/opengl/GLTexture.cpp b/tgfx/src/gpu/opengl/GLTexture.cpp
index ac78b2d914..e5c3a3b874 100644
--- a/tgfx/src/gpu/opengl/GLTexture.cpp
+++ b/tgfx/src/gpu/opengl/GLTexture.cpp
@@ -29,10 +29,6 @@ class GLBackendTexture : public GLTexture {
     sampler = std::move(textureSampler);
   }
 
-  size_t memoryUsage() const override {
-    return 0;
-  }
-
  protected:
   void onRelease(Context* context) override {
     if (adopted) {
@@ -77,10 +73,6 @@ class GLAlphaTexture : public GLTexture {
     sampler = std::move(textureSampler);
   }
 
-  size_t memoryUsage() const override {
-    return static_cast<size_t>(width() * height());
-  }
-
  protected:
   void computeRecycleKey(BytesKey* recycleKey) const override {
     ComputeRecycleKey(recycleKey, width(), height());
@@ -107,10 +99,6 @@ class GLRGBATexture : public GLTexture {
     sampler = std::move(textureSampler);
   }
 
-  size_t memoryUsage() const override {
-    return width() * height() * 4;
-  }
-
  protected:
   void computeRecycleKey(BytesKey* recycleKey) const override {
     ComputeRecycleKey(recycleKey, width(), height());
diff --git a/tgfx/src/gpu/opengl/GLYUVTexture.cpp b/tgfx/src/gpu/opengl/GLYUVTexture.cpp
index d0dfb784f3..0a649b9e60 100644
--- a/tgfx/src/gpu/opengl/GLYUVTexture.cpp
+++ b/tgfx/src/gpu/opengl/GLYUVTexture.cpp
@@ -23,8 +23,6 @@
 namespace tgfx {
 #define I420_PLANE_COUNT 3
 #define NV12_PLANE_COUNT 2
-#define I420_PIXEL_BYTES 1.5
-#define NV12_PIXEL_BYTES 1.5
 
 struct YUVConfig {
   YUVConfig(YUVColorSpace colorSpace, YUVColorRange colorRange, int width, int height,
@@ -63,10 +61,6 @@ class GLI420Texture : public GLYUVTexture {
     return YUVPixelFormat::I420;
   }
 
-  size_t memoryUsage() const override {
-    return static_cast<size_t>(width() * height() * I420_PIXEL_BYTES);
-  }
-
  protected:
   void computeRecycleKey(BytesKey* recycleKey) const override {
     ComputeRecycleKey(recycleKey, width(), height());
@@ -88,9 +82,6 @@ class GLNV12Texture : public GLYUVTexture {
   YUVPixelFormat pixelFormat() const override {
     return YUVPixelFormat::NV12;
   }
-  size_t memoryUsage() const override {
-    return static_cast<size_t>(width() * height() * NV12_PIXEL_BYTES);
-  }
 
  protected:
   void computeRecycleKey(BytesKey* recycleKey) const override {
diff --git a/tgfx/src/gpu/opengl/cgl/CGLHardwareTexture.h b/tgfx/src/gpu/opengl/cgl/CGLHardwareTexture.h
index 0fa33545d5..0765c87415 100644
--- a/tgfx/src/gpu/opengl/cgl/CGLHardwareTexture.h
+++ b/tgfx/src/gpu/opengl/cgl/CGLHardwareTexture.h
@@ -31,7 +31,6 @@ class CGLHardwareTexture : public GLTexture {
 
   ~CGLHardwareTexture() override;
   Point getTextureCoord(float x, float y) const override;
-  size_t memoryUsage() const override;
 
  protected:
   void computeRecycleKey(BytesKey* recycleKey) const override;
diff --git a/tgfx/src/gpu/opengl/cgl/CGLHardwareTexture.mm b/tgfx/src/gpu/opengl/cgl/CGLHardwareTexture.mm
index 9c82becd20..834c896ec5 100644
--- a/tgfx/src/gpu/opengl/cgl/CGLHardwareTexture.mm
+++ b/tgfx/src/gpu/opengl/cgl/CGLHardwareTexture.mm
@@ -88,11 +88,6 @@
   return GLTexture::getTextureCoord(x, y);
 }
 
-size_t CGLHardwareTexture::memoryUsage() const {
-  // 显存来自 CVPixelBuffer，这里不做重复统计。
-  return 0;
-}
-
 void CGLHardwareTexture::computeRecycleKey(BytesKey* recycleKey) const {
   ComputeRecycleKey(recycleKey, pixelBuffer);
 }
diff --git a/tgfx/src/gpu/opengl/eagl/EAGLHardwareTexture.h b/tgfx/src/gpu/opengl/eagl/EAGLHardwareTexture.h
index d71e7a1046..4b64205f32 100644
--- a/tgfx/src/gpu/opengl/eagl/EAGLHardwareTexture.h
+++ b/tgfx/src/gpu/opengl/eagl/EAGLHardwareTexture.h
@@ -30,7 +30,6 @@ class EAGLHardwareTexture : public GLTexture {
   explicit EAGLHardwareTexture(CVPixelBufferRef pixelBuffer);
 
   ~EAGLHardwareTexture() override;
-  size_t memoryUsage() const override;
 
  protected:
   void computeRecycleKey(BytesKey* recycleKey) const override;
diff --git a/tgfx/src/gpu/opengl/eagl/EAGLHardwareTexture.mm b/tgfx/src/gpu/opengl/eagl/EAGLHardwareTexture.mm
index 91f51f7576..feb324b490 100644
--- a/tgfx/src/gpu/opengl/eagl/EAGLHardwareTexture.mm
+++ b/tgfx/src/gpu/opengl/eagl/EAGLHardwareTexture.mm
@@ -109,11 +109,6 @@ static CVOpenGLESTextureRef GetTextureRef(Context* context, CVPixelBufferRef pix
   }
 }
 
-size_t EAGLHardwareTexture::memoryUsage() const {
-  // 显存来自 CVPixelBuffer，这里不做重复统计。
-  return 0;
-}
-
 void EAGLHardwareTexture::computeRecycleKey(BytesKey* recycleKey) const {
   ComputeRecycleKey(recycleKey, pixelBuffer);
 }
diff --git a/tgfx/src/gpu/opengl/eagl/EAGLNV12Texture.h b/tgfx/src/gpu/opengl/eagl/EAGLNV12Texture.h
index b723b66cdd..e88acd86be 100644
--- a/tgfx/src/gpu/opengl/eagl/EAGLNV12Texture.h
+++ b/tgfx/src/gpu/opengl/eagl/EAGLNV12Texture.h
@@ -36,8 +36,6 @@ class EAGLNV12Texture : public GLYUVTexture {
     return YUVPixelFormat::NV12;
   }
 
-  size_t memoryUsage() const override;
-
  protected:
   void onRelease(Context* context) override;
 
diff --git a/tgfx/src/gpu/opengl/eagl/EAGLNV12Texture.mm b/tgfx/src/gpu/opengl/eagl/EAGLNV12Texture.mm
index a1e782b784..76356e5681 100644
--- a/tgfx/src/gpu/opengl/eagl/EAGLNV12Texture.mm
+++ b/tgfx/src/gpu/opengl/eagl/EAGLNV12Texture.mm
@@ -89,11 +89,6 @@ static GLSampler ToGLSampler(CVOpenGLESTextureRef texture, PixelFormat format) {
   }
 }
 
-size_t EAGLNV12Texture::memoryUsage() const {
-  // 显存来自 CVPixelBuffer，这里不做重复统计。
-  return 0;
-}
-
 void EAGLNV12Texture::onRelease(Context*) {
   if (lumaTexture == nil || chromaTexture == nil) {
     return;
diff --git a/tgfx/src/gpu/opengl/egl/EGLHardwareTexture.h b/tgfx/src/gpu/opengl/egl/EGLHardwareTexture.h
index 1d4d7ef372..e721c9f8ab 100644
--- a/tgfx/src/gpu/opengl/egl/EGLHardwareTexture.h
+++ b/tgfx/src/gpu/opengl/egl/EGLHardwareTexture.h
@@ -31,10 +31,6 @@ class EGLHardwareTexture : public GLTexture {
   static std::shared_ptr<EGLHardwareTexture> MakeFrom(Context* context,
                                                       AHardwareBuffer* hardwareBuffer);
 
-  size_t memoryUsage() const override {
-    return 0;
-  }
-
  private:
   AHardwareBuffer* hardwareBuffer = nullptr;
   EGLImageKHR eglImage = EGL_NO_IMAGE_KHR;