Esempio n. 1
0
def init_capture(w, h, pixel_depth=32):
    capture = None
    if SHADOW_NVFBC:
        try:
            from xpra.codecs.nvfbc.fbc_capture_win import init_nvfbc_library
        except ImportError:
            log("NvFBC capture is not available", exc_info=True)
        else:
            try:
                if init_nvfbc_library():
                    log("NVFBC_CUDA=%s", NVFBC_CUDA)
                    pixel_format = {
                        24: "RGB",
                        32: "BGRX",
                        30: "r210",
                    }[pixel_depth]
                    if NVFBC_CUDA:
                        from xpra.codecs.nvfbc.fbc_capture_win import NvFBC_CUDACapture  #@UnresolvedImport
                        capture = NvFBC_CUDACapture()
                    else:
                        from xpra.codecs.nvfbc.fbc_capture_win import NvFBC_SysCapture  #@UnresolvedImport
                        capture = NvFBC_SysCapture()
                    capture.init_context(w, h, pixel_format)
            except Exception as e:
                capture = None
                log("NvFBC_Capture", exc_info=True)
                log.warn(
                    "Warning: NvFBC screen capture initialization failed:")
                for x in str(e).replace(". ", ":").split(":"):
                    if x.strip() and x != "nvfbc":
                        log.warn(" %s", x.strip())
                log.warn(" xpra is using the slower GDI capture code")
                del e
    if not capture:
        if SHADOW_GDI:
            capture = GDICapture()
        if not capture:
            raise Exception(
                "no screen capture methods enabled (GDI capture is disabled)")
    log("init_capture()=%s", capture)
    return capture
Esempio n. 2
0
def init_capture(pixel_depth=32):
    capture = None
    if SHADOW_NVFBC:
        try:
            from xpra.codecs.nvfbc.fbc_capture_win import init_nvfbc_library
        except ImportError:
            log("NvFBC capture is not available", exc_info=True)
        else:
            try:
                if init_nvfbc_library():
                    log("NVFBC_CUDA=%s", NVFBC_CUDA)
                    pixel_format = {
                        24: "RGB",
                        32: "BGRX",
                        30: "r210",
                    }[pixel_depth]
                    if NVFBC_CUDA:
                        from xpra.codecs.nvfbc.fbc_capture_win import NvFBC_CUDACapture
                        capture = NvFBC_CUDACapture()
                    else:
                        from xpra.codecs.nvfbc.fbc_capture_win import NvFBC_SysCapture
                        capture = NvFBC_SysCapture()
                    capture.init_context(-1, -1, pixel_format)
            except Exception as e:
                log("NvFBC_Capture", exc_info=True)
                log.warn(
                    "Warning: NvFBC screen capture initialization failed:")
                log.warn(" %s", e)
                log.warn(" using the slower GDI capture code")
                del e
    if not capture:
        if SHADOW_GDI:
            capture = GDICapture()
        if not capture:
            raise Exception(
                "no screen capture methods enabled (GDI capture is disabled)")
    log("init_capture()=%s", capture)
    return capture