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Support arrays and slices in buffers.(SetData/SetIndexBufData)

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bloeys
2022-07-03 23:08:20 +04:00
parent 71acc2e9ab
commit 8cf9be2830
1 changed files with 12 additions and 2 deletions
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14
buffers/buffers.go
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@ -30,7 +30,12 @@ func (b *Buffer) SetData(values []float32) {
gl.BindVertexArray(b.VAOID) gl.BindVertexArray(b.VAOID)
gl.BindBuffer(gl.ARRAY_BUFFER, b.BufID) gl.BindBuffer(gl.ARRAY_BUFFER, b.BufID)
gl.BufferData(gl.ARRAY_BUFFER, len(values)*4, gl.Ptr(values), BufUsage_Static.ToGL()) sizeInBytes := len(values) * 4
if sizeInBytes == 0 {
gl.BufferData(gl.ARRAY_BUFFER, 0, gl.Ptr(nil), BufUsage_Static.ToGL())
} else {
gl.BufferData(gl.ARRAY_BUFFER, sizeInBytes, gl.Ptr(&values[0]), BufUsage_Static.ToGL())
}
gl.BindVertexArray(0) gl.BindVertexArray(0)
gl.BindBuffer(gl.ARRAY_BUFFER, 0) gl.BindBuffer(gl.ARRAY_BUFFER, 0)
@ -42,7 +47,12 @@ func (b *Buffer) SetIndexBufData(values []uint32) {
gl.BindVertexArray(b.VAOID) gl.BindVertexArray(b.VAOID)
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, b.IndexBufID) gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, b.IndexBufID)
gl.BufferData(gl.ELEMENT_ARRAY_BUFFER, len(values)*4, gl.Ptr(values), BufUsage_Static.ToGL()) sizeInBytes := len(values) * 4
if sizeInBytes == 0 {
gl.BufferData(gl.ELEMENT_ARRAY_BUFFER, 0, gl.Ptr(nil), BufUsage_Static.ToGL())
} else {
gl.BufferData(gl.ELEMENT_ARRAY_BUFFER, sizeInBytes, gl.Ptr(&values[0]), BufUsage_Static.ToGL())
}
gl.BindVertexArray(0) gl.BindVertexArray(0)
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, 0) gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, 0)