Method

CoglTextureget_data

Declaration [src]

int
cogl_texture_get_data (
  CoglTexture* texture,
  CoglPixelFormat format,
  unsigned int rowstride,
  uint8_t* data
)

Description [src]

Copies the pixel data from a cogl texture to system memory.

Don’t pass the value of cogl_texture_get_rowstride() as the rowstride argument, the rowstride should be the rowstride you want for the destination data buffer not the rowstride of the source texture.

Parameters

format

Type: CoglPixelFormat

The CoglPixelFormat to store the texture as.

rowstride

Type: unsigned int

The rowstride of data in bytes or pass 0 to calculate from the bytes-per-pixel of format multiplied by the texture width.

data

Type: An array of uint8_t

Memory location to write the texture‘s contents, or NULL to only query the data size through the return value.

The argument can be NULL.

The data is owned by the caller of the method.

Return value

Type: int

The size of the texture data in bytes.