Use case

As a developer of other platforms, we use the common API(shell/platform/common) to develop plugins . In the common API, I found that txture only supports pixel buffer data.As we know, there are performance problems when using pixel buffer data because it copies data from CPU to GPU.

Proposal

When using Texture, we need Common API to support GPU buffer Data:
1.we can add a new struct for gpu buffer data.

typedef struct {
 // The gpu data buffer.
 const void* buffer;
 // Width of the gpu buffer.
 size_t width;
 // Height of the gpu buffer.
 size_t height;
} FlutterDesktopGpuBuffer;

2.we can add a new callback to obtain gpu buffer data pointer when tiggle gl_external_texture_frame_callback.
3.Add a destruction callback when GPU render finished.