gpu: rename BufferTypeData to less vague BufferTypeVertices

Signed-off-by: Elias Naur <mail@eliasnaur.com>

gpu/backend.go

@@ -158,7 +158,7 @@ const (
 
 const (
 	BufferTypeIndices BufferType = iota
-	BufferTypeData
+	BufferTypeVertices
 )
 
 const (

gpu/gl/backend.go

@@ -166,7 +166,7 @@ func (b *Backend) NewBuffer(typ gpu.BufferType, data []byte) gpu.Buffer {
 	obj := b.funcs.CreateBuffer()
 	var gltyp Enum
 	switch typ {
-	case gpu.BufferTypeData:
+	case gpu.BufferTypeVertices:
 		gltyp = ARRAY_BUFFER
 	case gpu.BufferTypeIndices:
 		gltyp = ELEMENT_ARRAY_BUFFER

gpu/gpu.go

@@ -376,7 +376,7 @@ func newBlitter(ctx Backend) *blitter {
 	if err != nil {
 		panic(err)
 	}
-	quadVerts := ctx.NewBuffer(BufferTypeData,
+	quadVerts := ctx.NewBuffer(BufferTypeVertices,
 		gunsafe.BytesView([]float32{
 			-1, +1, 0, 0,
 			+1, +1, 1, 0,

gpu/path.go

@@ -239,7 +239,7 @@ func (c *coverer) release() {
 }
 
 func buildPath(ctx Backend, p []byte) *pathData {
-	buf := ctx.NewBuffer(BufferTypeData, p)
+	buf := ctx.NewBuffer(BufferTypeVertices, p)
 	return &pathData{
 		ncurves: len(p) / path.VertStride,
 		data:    buf,