gl_texture_cache: Correct asserts

src/video_core/renderer_opengl/gl_resource_manager.cpp

@@ -149,7 +149,7 @@ void OGLBuffer::Release() {
 }
 
 void OGLBuffer::MakeStreamCopy(std::size_t buffer_size) {
-    ASSERT_OR_EXECUTE((handle == 0 || buffer_size == 0), { return; });
+    ASSERT_OR_EXECUTE((handle != 0 && buffer_size != 0), { return; });
 
     glNamedBufferData(handle, buffer_size, nullptr, GL_STREAM_COPY);
 }

src/video_core/renderer_opengl/gl_texture_cache.cpp

@@ -590,7 +590,7 @@ void TextureCacheOpenGL::BufferCopy(Surface& src_surface, Surface& dst_surface)
 }
 
 GLuint TextureCacheOpenGL::FetchPBO(std::size_t buffer_size) {
-    ASSERT_OR_EXECUTE(buffer_size <= 0, { return 0; });
+    ASSERT_OR_EXECUTE(buffer_size > 0, { return 0; });
     const u32 l2 = Common::Log2Ceil64(static_cast<u64>(buffer_size));
     OGLBuffer& cp = copy_pbo_cache[l2];
     if (cp.handle == 0) {