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validate_copy_tex_image_formats

script::dom::webgl::webglrenderingcontext

Function validate_copy_tex_image_formats 

Source 
fn validate_copy_tex_image_formats(
    source: TexFormat,
    destination: TexFormat,
) -> WebGLResult<Option<TexDataType>>
Expand description

Checks that copyTexImage2D may fill a texture of destination format from a color buffer of source format (OpenGL ES 3.0.6 section 3.8.5); InvalidOperation otherwise. Returns the type whose table 3.12 row is the new image’s effective format, None for a sized destination.