forked from joejulian/gio
Elias Naur
9b5e9ae607
To ease the integration with foreign OpenGL contexts, carefully save the context state before rendering a frame and restore it afterwards. Gio rendering can then be mixed with OpenGL code that expects exclusive control over context state. Signed-off-by: Elias Naur <mail@eliasnaur.com>
77 lines
1.3 KiB
Go
77 lines
1.3 KiB
Go
// +build !js
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package gl
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type (
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Object struct{ V uint }
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Buffer Object
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Framebuffer Object
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Program Object
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Renderbuffer Object
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Shader Object
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Texture Object
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Query Object
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Uniform struct{ V int }
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VertexArray Object
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)
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func (o Object) valid() bool {
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return o.V != 0
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}
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func (o Object) equal(o2 Object) bool {
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return o == o2
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}
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func (u Framebuffer) Valid() bool {
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return Object(u).valid()
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}
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func (u Uniform) Valid() bool {
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return u.V != -1
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}
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func (p Program) Valid() bool {
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return Object(p).valid()
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}
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func (s Shader) Valid() bool {
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return Object(s).valid()
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}
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func (a VertexArray) Valid() bool {
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return Object(a).valid()
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}
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func (f Framebuffer) Equal(f2 Framebuffer) bool {
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return Object(f).equal(Object(f2))
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}
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func (p Program) Equal(p2 Program) bool {
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return Object(p).equal(Object(p2))
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}
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func (s Shader) Equal(s2 Shader) bool {
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return Object(s).equal(Object(s2))
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}
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func (u Uniform) Equal(u2 Uniform) bool {
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return u == u2
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}
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func (a VertexArray) Equal(a2 VertexArray) bool {
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return Object(a).equal(Object(a2))
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}
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func (r Renderbuffer) Equal(r2 Renderbuffer) bool {
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return Object(r).equal(Object(r2))
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}
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func (t Texture) Equal(t2 Texture) bool {
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return Object(t).equal(Object(t2))
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}
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func (b Buffer) Equal(b2 Buffer) bool {
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return Object(b).equal(Object(b2))
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}
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