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ToastconcernandClaude Opus 5.5
f7345a5ac3
Frame Studio now builds for Windows (x64, x86, ARM64), Linux (x64, x86, ARM64)
and macOS (Apple Silicon, Intel):
- studio/platform.h with Win32 and POSIX implementations (dialogs through
tinyfiledialogs on Linux/macOS), a GLFW window beside the Win32 one, and a
platform-neutral frame pacer
- MoltenVK support in the renderer (portability enumeration) and bundled in
the macOS app
- 32-bit builds: large-address-aware, LZMA packing within a 32-bit address space
- unaligned file reads in the loaders go through loadUnaligned (no UB)
- scripts/build-studio.sh, studio/build_windows.bat [x64|x86|arm64],
cmake/llvm-mingw.cmake, and a GitHub Actions workflow building every target
Frame Home installs without Studio: frame/install-frame-home.{sh,ps1} and
"Install Frame Home.bat" (packaged as FrameHome-installer.zip).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
107 lines
3.4 KiB
C++
107 lines
3.4 KiB
C++
// SPDX-License-Identifier: Apache-2.0
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// ----------------------------------------------------------------------------
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// Copyright 2026 Arm Limited
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not
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// use this file except in compliance with the License. You may obtain a copy
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// of the License at:
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations
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// under the License.
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// ----------------------------------------------------------------------------
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#include "astcenc.h"
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#include <fuzzer/FuzzedDataProvider.h>
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#include <vector>
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#include <iostream>
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extern "C" int LLVMFuzzerTestOneInput(
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const uint8_t *data,
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size_t size
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) {
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FuzzedDataProvider fdp(data, size);
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// Randomize block size
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// Legal 2D block sizes: 4x4, 5x4, 5x5, 6x5, 6x6, 8x5, 8x6, 8x8, 10x5, 10x6, 10x8, 10x10, 12x10, 12x12
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static const struct { uint8_t x, y; } block_sizes[] = {
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{4, 4}, {5, 4}, {5, 5}, {6, 5}, {6, 6}, {8, 5}, {8, 6}, {8, 8},
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{10, 5}, {10, 6}, {10, 8}, {10, 10}, {12, 10}, {12, 12}
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};
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int bs_idx = fdp.ConsumeIntegralInRange<int>(0, (sizeof(block_sizes) / sizeof(block_sizes[0])) - 1);
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uint32_t block_x = block_sizes[bs_idx].x;
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uint32_t block_y = block_sizes[bs_idx].y;
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uint32_t block_z = 1;
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// Randomize profile
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astcenc_profile profile = (astcenc_profile)fdp.ConsumeIntegralInRange<int>(0, 3);
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// Randomize quality
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float quality = fdp.ConsumeFloatingPointInRange<float>(ASTCENC_PRE_FASTEST, ASTCENC_PRE_EXHAUSTIVE);
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// Randomize flags, but constrain to be safe with arbitrary input data
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unsigned int flags = fdp.ConsumeIntegralInRange<unsigned int>(0, ASTCENC_ALL_FLAGS);
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flags &= ~ASTCENC_FLG_SELF_DECOMPRESS_ONLY;
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astcenc_config config;
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astcenc_error status = astcenc_config_init(profile, block_x, block_y, block_z, quality, flags, &config);
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if (status != ASTCENC_SUCCESS)
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{
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return 0;
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}
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astcenc_context* context = nullptr;
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status = astcenc_context_alloc(&config, 1, &context, nullptr);
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if (status != ASTCENC_SUCCESS)
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{
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return 0;
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}
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// Prepare for decompression
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// We need some "compressed" data. ASTC blocks are 16 bytes.
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// Let's decide how many blocks to decompress.
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size_t num_blocks_x = fdp.ConsumeIntegralInRange<size_t>(1, 4);
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size_t num_blocks_y = fdp.ConsumeIntegralInRange<size_t>(1, 4);
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size_t compressed_data_len = num_blocks_x * num_blocks_y * 16;
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if (fdp.remaining_bytes() < compressed_data_len)
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{
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astcenc_context_free(context);
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return 0;
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}
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std::vector<uint8_t> compressed_data = fdp.ConsumeBytes<uint8_t>(compressed_data_len);
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// Image dimensions
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uint32_t dim_x = num_blocks_x * block_x;
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uint32_t dim_y = num_blocks_y * block_y;
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uint32_t dim_z = 1;
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// Allocate output image
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astcenc_image image_out;
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image_out.dim_x = dim_x;
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image_out.dim_y = dim_y;
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image_out.dim_z = dim_z;
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image_out.data_type = ASTCENC_TYPE_U8;
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uint8_t* slice_data = new uint8_t[dim_x * dim_y * 4];
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void* slices[] = { slice_data };
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image_out.data = slices;
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astcenc_swizzle swizzle = {
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ASTCENC_SWZ_R, ASTCENC_SWZ_G, ASTCENC_SWZ_B, ASTCENC_SWZ_A
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};
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status = astcenc_decompress_image(context, compressed_data.data(), compressed_data.size(), &image_out, &swizzle, 0);
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delete[] slice_data;
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astcenc_context_free(context);
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return 0;
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}
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