42 lines
1.2 KiB
Go
42 lines
1.2 KiB
Go
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package pixelgl
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import (
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"github.com/go-gl/gl/v3.3-core/gl"
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"github.com/pkg/errors"
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)
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// GetLastError returns (and consumes) the last error generated by OpenGL.
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// If no error has been generated, this function returns nil.
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//
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// Call this function only inside the OpenGL thread (Do, DoErr or DoVal function). It's not guaranteed
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// to work correctly outside of it, because the thread swallows extra unchecked errors.
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func GetLastError() error {
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err := uint32(gl.NO_ERROR)
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for e := gl.GetError(); e != gl.NO_ERROR; e = gl.GetError() {
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err = e
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}
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if err == gl.NO_ERROR {
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return nil
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}
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switch err {
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case gl.INVALID_ENUM:
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return errors.New("invalid enum")
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case gl.INVALID_VALUE:
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return errors.New("invalid value")
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case gl.INVALID_OPERATION:
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return errors.New("invalid operation")
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case gl.STACK_OVERFLOW:
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return errors.New("stack overflow")
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case gl.STACK_UNDERFLOW:
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return errors.New("stack underflow")
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case gl.OUT_OF_MEMORY:
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return errors.New("out of memory")
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case gl.INVALID_FRAMEBUFFER_OPERATION:
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return errors.New("invalid framebuffer operation")
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case gl.CONTEXT_LOST:
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return errors.New("context lost")
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default:
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return errors.New("unknown error")
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}
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}
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