Function postFBData

gapis/api/gles/read_framebuffer.go:83–404

(ctx context.Context,
	id api.CmdID,
	thread uint64,
	width, height uint32,
	fb FramebufferId,
	attachment GLenum,
	version *Version,
	out transform.Writer,
	res replay.Result)

}

func postFBData(ctx context.Context,
	id api.CmdID,
	thread uint64,
	width, height uint32,
	fb FramebufferId,
	attachment GLenum,
	version *Version,
	out transform.Writer,
	res replay.Result) {

	s := out.State()
	c := GetContext(s, thread)

	if fb == 0 {
		var err error
		if fb, err = getBoundFramebufferID(thread, s); err != nil {
			log.W(ctx, "Could not read framebuffer after cmd %v: %v", id, err)
			res(nil, &service.ErrDataUnavailable{Reason: messages.ErrFramebufferUnavailable()})
			return
		}
	}

	fbai, err := GetState(s).getFramebufferAttachmentInfo(thread, fb, attachment)
	if err != nil {
		log.W(ctx, "Failed to read framebuffer after cmd %v: %v", id, err)
		res(nil, &service.ErrDataUnavailable{Reason: messages.ErrFramebufferUnavailable()})
		return
	}
	if fbai.sizedFormat == 0 {
		log.W(ctx, "Failed to read framebuffer after cmd %v: no image format", id)
		res(nil, &service.ErrDataUnavailable{Reason: messages.ErrFramebufferUnavailable()})
		return
	}

	var (
		inW  = int32(fbai.width)
		inH  = int32(fbai.height)
		outW = int32(width)
		outH = int32(height)
	)

	if outW == 0 {
		outW = inW
	}
	if outH == 0 {
		outH = inH
	}

	dID := id.Derived()
	cb := CommandBuilder{Thread: thread, Arena: s.Arena}
	t := newTweaker(out, dID, cb)
	defer t.revert(ctx)
	t.glBindFramebuffer_Read(ctx, fb)

	unsizedFormat, ty := getUnsizedFormatAndType(fbai.sizedFormat)

	imgFmt, err := getImageFormat(unsizedFormat, ty)
	if err != nil {