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graphics: Stop unnecessary copy of elements (projection matrix)

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This commit is contained in:
Hajime Hoshi 2018-02-20 01:36:56 +09:00
parent 40b1948baa
commit 30e48d5c3c
1 changed files with 3 additions and 1 deletions
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4
internal/graphics/program.go
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@ -261,7 +261,9 @@ func (s *openGLState) useProgram(proj []float32, texture opengl.Texture, sourceW
if s.lastProjectionMatrix == nil {
s.lastProjectionMatrix = make([]float32, 16)
}
copy(s.lastProjectionMatrix, proj)
// (*framebuffer).projectionMatrix is always same for the same framebuffer.
// It's OK to hold the reference without copying.
s.lastProjectionMatrix = proj
}
esBody, esTranslate := colorM.UnsafeElements()