71 lines
1.7 KiB
Haxe
71 lines
1.7 KiB
Haxe
package kha.graphics4;
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class VertexStructure {
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public var elements: Array<VertexElement>;
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public var instanced: Bool;
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public function new() {
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elements = new Array<VertexElement>();
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instanced = false;
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}
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public function add(name: String, data: VertexData) {
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elements.push(new VertexElement(name, data));
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}
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@:keep
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public function size(): Int {
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return elements.length;
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}
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public function byteSize(): Int {
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var byteSize = 0;
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for (i in 0...elements.length) {
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byteSize += dataByteSize(elements[i].data);
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}
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return byteSize;
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}
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public static function dataByteSize(data: VertexData): Int {
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switch (data) {
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case Float32_1X:
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return 1 * 4;
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case Float32_2X:
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return 2 * 4;
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case Float32_3X:
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return 3 * 4;
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case Float32_4X:
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return 4 * 4;
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case Float32_4X4:
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return 4 * 4 * 4;
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case Int8_1X, UInt8_1X, Int8_1X_Normalized, UInt8_1X_Normalized:
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return 1 * 1;
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case Int8_2X, UInt8_2X, Int8_2X_Normalized, UInt8_2X_Normalized:
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return 2 * 1;
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case Int8_4X, UInt8_4X, Int8_4X_Normalized, UInt8_4X_Normalized:
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return 4 * 1;
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case Int16_1X, UInt16_1X, Int16_1X_Normalized, UInt16_1X_Normalized:
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return 1 * 2;
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case Int16_2X, UInt16_2X, Int16_2X_Normalized, UInt16_2X_Normalized:
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return 2 * 2;
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case Int16_4X, UInt16_4X, Int16_4X_Normalized, UInt16_4X_Normalized:
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return 4 * 2;
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case Int32_1X, UInt32_1X:
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return 1 * 4;
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case Int32_2X, UInt32_2X:
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return 2 * 4;
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case Int32_3X, UInt32_3X:
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return 3 * 4;
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case Int32_4X, UInt32_4X:
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return 4 * 4;
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}
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}
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@:keep
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public function get(index: Int): VertexElement {
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return elements[index];
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}
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}
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