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我正在尝试将 SDL_Surface 成员传递给 SDL_LockTexture：

texture = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_STREAMING, width, height)
surface = SDL_CreateRGBSurface(0, width, height, 32, 0x00FF0000, 0x0000FF00, 0x000000FF, 0xFF000000)
SDL_LockTexture(texture, 0, ctypes.byref(surface.contents.pixels), ctypes.byref(surface.contents.pitch))

TypeError: byref() argument must be a ctypes instance, not 'int'

SDL_Surface 在这里定义：surface.py

...
class SDL_Surface(Structure):
_fields_ = [
            ...
            ("pitch", c_int),
            ("pixels", c_void_p),
            ...
...

SDL_LockTexture 在这里定义：render.py

SDL_LockTexture = _bind("SDL_LockTexture", [POINTER(SDL_Texture), POINTER(SDL_Rect), POINTER(c_void_p), POINTER(c_int)], c_int)

在调用 SDL_CreateRGBSurface 后，调试器说表面的像素和间距成员都是 int 类型。我究竟做错了什么？

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1 回答 1

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我遇到了同样的问题，试图将像素传递给PyOpenGL函数。由于某种原因，该字段存储为int. 您需要将其转换为void pointer. 尝试：

SDL_LockTexture(texture, 0, ctypes.byref(ctypes.c_void_p(surface.contents.pixels)), ctypes.byref(ctypes.c_int(surface.contents.pitch))
于 2014-02-10T12:50:21.550 回答