kc3-lang/angle/src/image_util/AstcDecompressor.h

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• Hash : e0fafcdf
  Author :
  Date : 2024-12-10T17:46:44
  

  add missing includes for the build with use_libcxx_modules
  
  This is to fix build error when we set use_libcxx_modules=true in
  chromium build.
  
  Bug: chromium:40440396
  Change-Id: Ic1f2655b91eaf949150d61a9a42c0ee0221afac9
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6084012
  Auto-Submit: Takuto Ikuta <tikuta@chromium.org>
  Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
  Commit-Queue: Yuly Novikov <ynovikov@chromium.org>
  

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• src/image_util/AstcDecompressor.h

• //
  // Copyright 2022 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  // AstcDecompressor.h: Decodes ASTC-encoded textures.
  
  #ifndef IMAGE_UTIL_ASTC_CPU_DECOMPRESSOR_H_
  #define IMAGE_UTIL_ASTC_CPU_DECOMPRESSOR_H_
  
  #include <stdint.h>
  
  #include <memory>
  #include <string>
  
  namespace angle
  {
  class WorkerThreadPool;
  
  // This class is responsible for decompressing ASTC textures on the CPU.
  // This class is thread-safe and all its methods can be called by any thread.
  class AstcDecompressor
  {
    public:
      // Returns the global singleton instance of this class.
      static AstcDecompressor &get();
  
      virtual ~AstcDecompressor() = default;
  
      // Whether the ASTC decompressor is available. Reasons why it may not be available include:
      //   - It wasn't compiled on this platform.
      //   - The CPU doesn't support AVX2 instructions.
      // If this returns false, decompress() will fail.
      virtual bool available() const = 0;
  
      // Decompress an ASTC texture.
      //
      // singleThreadPool: a thread pool that runs tasks on the current thread. Must not be null.
      // multiThreadPool: (optional) a multi-threaded pool. If non-null, this will be used if the
      //                  image is large enough to benefit from it.
      // imgWidth, imgHeight: width and height of the texture, in texels.
      // blockWidth, blockHeight: ASTC encoding block size.
      // input: pointer to the ASTC data to decompress
      // inputLength: size of astData
      // output: where to white the decompressed output. This buffer must be able to hold at least
      //         imgWidth * imgHeight * 4 bytes.
      //
      // Returns 0 on success, or a non-zero status code on error. Use getStatusString() to convert
      // this status code to an error string.
      virtual int32_t decompress(std::shared_ptr<WorkerThreadPool> singleThreadPool,
                                 std::shared_ptr<WorkerThreadPool> multiThreadPool,
                                 uint32_t imgWidth,
                                 uint32_t imgHeight,
                                 uint32_t blockWidth,
                                 uint32_t blockHeight,
                                 const uint8_t *input,
                                 size_t inputLength,
                                 uint8_t *output) = 0;
  
      // Returns an error string for a given status code. Will always return non-null.
      virtual const char *getStatusString(int32_t statusCode) const = 0;
  };
  
  }  // namespace angle
  
  #endif  // IMAGE_UTIL_ASTC_CPU_DECOMPRESSOR_H_
  

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