gettextsubimage: verify zoffset and depth are correct
According to OpenGL 4.6 spec, section 8.11.4 ("Texture Image Queries"), relative to errors for GetTextureSubImage() function: "An INVALID_VALUE error is generated if the effective target is TEXTURE_1D and either yoffset is not zero, or height is not one. An INVALID_VALUE error is generated if the effective target is TEXTURE_1D, TEXTURE_1D_ARRAY, TEXTURE_2D or TEXTURE_RECTANGLE, and either zoffset is not zero, or depth is not one." The commit fixes the check for height and depth. This fixes arb_get_texture_sub_image piglit tests. Signed-off-by:Juan A. Suarez Romero <jasuarez@igalia.com> Reviewed-by:
Iago Toral Quiroga <itoral@igalia.com>
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