Help on drmModeSetPlane

[Xie, William]

To make it more specific,

For example:
1: video frame size is 1280x720,
2: screen resolution is 3200x1800,

How can I set crtc and src parameters?

1: crtc (0, 0, 3200, 1800)  src (0, 0, 3200<<16, 1800<<16)
2: crtc (0, 0, 3200, 1800)  src (0, 0, 1280<<16, 720<<16)

Which one is correct?

William

From: Xie, William
Sent: Wednesday, April 15, 2015 3:55 PM
To: DRI Development; DRI Development
Subject: Help on drmModeSetPlane

Question please, could someone share the meaning of the parameters for drmModeSetPlane in libdrm?

int drmModeSetPlane(int fd, uint32_t plane_id, uint32_t crtc_id,
                                    uint32_t fb_id, uint32_t flags,
                                    int32_t crtc_x, int32_t crtc_y,
                                    uint32_t crtc_w, uint32_t crtc_h,
                                    uint32_t src_x, uint32_t src_y,
                                    uint32_t src_w, uint32_t src_h)


My problem is, whatever value I set, the video is not full screen mode,
Anything I missed?

Thanks
William




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