update external headers

ios/include/geometry/Transcoder.h

@@ -1,104 +0,0 @@
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef TNT_GEOMETRY_TRANSCODER_H
-#define TNT_GEOMETRY_TRANSCODER_H
-
-#include <utils/compiler.h>
-
-#include <stddef.h>
-#include <stdint.h>
-
-namespace filament {
-namespace geometry {
-
-enum class ComponentType {
-    BYTE,   //!< If normalization is enabled, this maps from [-127,127] to [-1,+1]
-    UBYTE,  //!< If normalization is enabled, this maps from [0,255] to [0, +1]
-    SHORT,  //!< If normalization is enabled, this maps from [-32767,32767] to [-1,+1]
-    USHORT, //!< If normalization is enabled, this maps from [0,65535] to [0, +1]
-    HALF,   //!< 1 sign bit, 5 exponent bits, and 5 mantissa bits.
-};
-
-/**
- * Creates a function object that can convert vertex attribute data into tightly packed floats.
- *
- * This is especially useful for 3-component formats which are not supported by all backends.
- * e.g. The Vulkan minspec includes float3 but not short3.
- *
- * Usage Example:
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- * using filament::geometry::Transcoder;
- * using filament::geometry::ComponentType;
- *
- * Transcoder transcode({
- *     .componentType = ComponentType::BYTE,
- *     .normalized = true,
- *     .componentCount = 3,
- *     .inputStrideBytes = 0
- * });
- *
- * transcode(outputPtr, inputPtr, count);
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- * The interpretation of signed normalized data is consistent with Vulkan and OpenGL ES 3.0+.
- * Note that this slightly differs from earlier versions of OpenGL ES.  For example, a signed byte
- * value of -127 maps exactly to -1.0f under ES3 and VK rules, but not ES2.
- */
-class UTILS_PUBLIC Transcoder {
-public:
-    /**
-     * Describes the format of all input data that get passed to this transcoder object.
-     */
-    struct Config {
-        ComponentType componentType;
-        bool normalized;
-        uint32_t componentCount;
-        uint32_t inputStrideBytes = 0; //!< If stride is 0, the transcoder assumes tight packing.
-    };
-
-    /**
-     * Creates an immutable function object with the specified configuration.
-     *
-     * The config is not passed by const reference to allow for type inference at the call site.
-     */
-    Transcoder(Config config) noexcept : mConfig(config) {}
-
-    /**
-     * Converts arbitrary data into tightly packed 32-bit floating point values.
-     *
-     * If target is non-null, writes up to "count" items into target and returns the number of bytes
-     * actually written.
-     *
-     * If target is null, returns the number of bytes required.
-     *
-     * @param target Client owned area to write into, or null for a size query
-     * @param source Pointer to the data to read from (does not get retained)
-     * @param count The maximum number of items to write (i.e. number of float3 values, not bytes)
-     * @return Number of bytes required to contain "count" items after conversion to packed floats
-     *
-     */
-    size_t operator()(float* UTILS_RESTRICT target, void const* UTILS_RESTRICT source,
-            size_t count) const noexcept;
-
-private:
-    const Config mConfig;
-};
-
-} // namespace geometry
-} // namespace filament
-
-#endif // TNT_GEOMETRY_TRANSCODER_H