Frame rate switching method and apparatus

An electronic device, comprising:

• a processor;
• and
• a memory storing a computer program, which when executed by the processor, cause the processor to perform a method, the method comprising:
• drawing and rendering, by an application thread, a first image frame at a frame interval corresponding to a first frame rate in a first period;
• drawing and rendering, by the application thread, a second image frame at a frame interval corresponding to a second frame rate in a second period, wherein the second period is preceded by the first period, and the second frame rate is different from the first frame rate;
• transmitting, by a compositing thread, a first frame-rate-switching request to a hardware composer thread in a third period, wherein the third period is preceded by the second period, or the third period coincides with the second period;
• and
• switching, by the hardware composer thread, from the first frame rate to the second frame rate in response to the first frame-rate-switching request so that the second image frame is displayed at the second frame rate wherein in a case that 0 buffers are accumulated in a queue buffer corresponding to the application thread, the third period coincides with the second period.

A non-transitory computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, and when the computer instructions are run on an electronic device, the electronic device is enabled to perform a method, the method comprising:

• drawing and rendering, by an application thread, a first image frame at a frame interval corresponding to a first frame rate in a first period;
• drawing and rendering, by the application thread, a second image frame at a frame interval corresponding to a second frame rate in a second period, wherein the second period is preceded by the first period, and the second frame rate is different from the first frame rate;
• transmitting, by a compositing thread, a first frame-rate-switching request to a hardware composer thread in a third period, wherein the third period is preceded by the second period, or the third period coincides with the second period;
• and
• switching, by the hardware composer thread, from the first frame rate to the second frame rate in response to the first frame-rate-switching request so that the second image frame is displayed at the second frame rate, wherein in a case that 0 buffers are accumulated in a queue buffer corresponding to the application thread, the third period coincides with the second period.