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Frame Studio and Frame Home: cross-platform builds
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>
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// SPDX-License-Identifier: Apache-2.0
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// ----------------------------------------------------------------------------
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// Copyright 2025-2026 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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/**
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* @brief Unit tests for the vectorized SIMD functionality.
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*/
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#include <limits>
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#include "gtest/gtest.h"
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#include "../astcenc.h"
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namespace astcenc
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{
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/** @brief Input overflow tests for xy * z. */
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TEST(compress, overflow_in_z)
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{
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astcenc_error status;
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astcenc_config config;
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astcenc_context* context;
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static const 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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astcenc_config_init(ASTCENC_PRF_LDR, 4, 4, 1, ASTCENC_PRE_MEDIUM, 0, &config);
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status = astcenc_context_alloc(&config, 1, &context, nullptr);
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EXPECT_EQ(status, ASTCENC_SUCCESS);
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// Arrays are too short, but should never be touched
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uint8_t data[1];
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uint8_t input[1];
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astcenc_image image;
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// x * y always fits in 64-bit size_t, but xy * z will overflow
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image.dim_x = 0xFFFFFFFFu;
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image.dim_y = 0xFFFFFFFFu;
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image.dim_z = 0xFFFFFFFFu;
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image.data_type = ASTCENC_TYPE_U8;
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uint8_t* slices = input;
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image.data = reinterpret_cast<void**>(&slices);
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status = astcenc_compress_image(context, &image, &swizzle, data, -1, 0);
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EXPECT_EQ(status, ASTCENC_ERR_BAD_PARAM);
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astcenc_context_free(context);
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}
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/** @brief Input overflow tests for xyz * 16. */
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TEST(compress, overflow_in_16)
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{
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astcenc_error status;
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astcenc_config config;
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astcenc_context* context;
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static const 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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astcenc_config_init(ASTCENC_PRF_LDR, 4, 4, 1, ASTCENC_PRE_MEDIUM, 0, &config);
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status = astcenc_context_alloc(&config, 1, &context, nullptr);
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EXPECT_EQ(status, ASTCENC_SUCCESS);
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// Arrays are too short, but should never be touched
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uint8_t data[1];
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uint8_t input[1];
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astcenc_image image;
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// xyz (in blocks) always fits in 64-bit size_t, but xyz * 16 will overflow
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image.dim_x = 0x80000000u;
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image.dim_y = 0x80000000u;
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image.dim_z = 0x00000010u;
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image.data_type = ASTCENC_TYPE_U8;
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uint8_t* slices = input;
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image.data = reinterpret_cast<void**>(&slices);
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status = astcenc_compress_image(context, &image, &swizzle, data, -1, 0);
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EXPECT_EQ(status, ASTCENC_ERR_BAD_PARAM);
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astcenc_context_free(context);
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}
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/** @brief Input data buffer overrun tests. */
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TEST(compress, data_buffer_exceeded)
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{
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astcenc_error status;
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astcenc_config config;
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astcenc_context* context;
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static const 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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astcenc_config_init(ASTCENC_PRF_LDR, 4, 4, 1, ASTCENC_PRE_MEDIUM, 0, &config);
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status = astcenc_context_alloc(&config, 1, &context, nullptr);
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EXPECT_EQ(status, ASTCENC_SUCCESS);
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// Arrays are too short, but should never be touched
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uint8_t data[1];
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uint8_t input[1];
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astcenc_image image;
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image.dim_x = 0x4u;
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image.dim_y = 0x4u;
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image.dim_z = 0x1u;
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image.data_type = ASTCENC_TYPE_U8;
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uint8_t* slices = input;
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image.data = reinterpret_cast<void**>(&slices);
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// Data size is 1 byte too short so this should error
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status = astcenc_compress_image(context, &image, &swizzle, data, 15, 0);
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EXPECT_EQ(status, ASTCENC_ERR_OUT_OF_MEM);
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astcenc_context_free(context);
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}
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/** @brief Helper to run a compression on a single 4x4 block */
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static void run_positive_test(
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astcenc_profile profile,
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float* input
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) {
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astcenc_error status;
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astcenc_config config;
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astcenc_context* context;
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static const 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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astcenc_config_init(profile, 4, 4, 1, ASTCENC_PRE_MEDIUM, 0, &config);
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status = astcenc_context_alloc(&config, 1, &context, nullptr);
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EXPECT_EQ(status, ASTCENC_SUCCESS);
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// Single 16 byte block output data
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uint8_t data[16];
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astcenc_image image;
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image.dim_x = 4u;
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image.dim_y = 4u;
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image.dim_z = 1u;
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image.data_type = ASTCENC_TYPE_F32;
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float* slices = input;
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image.data = reinterpret_cast<void**>(&slices);
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// Should not error or trip any UBSAN errors
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status = astcenc_compress_image(context, &image, &swizzle, data, 16, 0);
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EXPECT_EQ(status, ASTCENC_SUCCESS);
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astcenc_context_free(context);
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}
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/** @brief Input data contains negative infinities. */
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TEST(compress, data_neg_inf_ldr)
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{
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// Cycle through a single bad value in each color channel
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for(int offset = 0; offset < 4; offset++)
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{
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// 4x4 block input data
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std::vector<float> input(4 * 4 * 4, 0.5f);
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input[0 + offset] = -std::numeric_limits<float>::infinity();
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// Make data more complex to hit more compressor paths
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input[4 + offset] = 0.75f;
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input[8 + offset] = 0.35f;
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input[12 + offset] = 0.0f;
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run_positive_test(ASTCENC_PRF_LDR, input.data());
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}
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}
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/** @brief Input data contains negative infinities. */
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TEST(compress, data_neg_inf_hdr)
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{
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// Cycle through a single bad value in each color channel
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for(int offset = 0; offset < 4; offset++)
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{
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// 4x4 block input data
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std::vector<float> input(4 * 4 * 4, 0.5f);
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input[0 + offset] = -std::numeric_limits<float>::infinity();
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run_positive_test(ASTCENC_PRF_HDR, input.data());
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}
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}
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/** @brief Input data contains negative infinities. */
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TEST(compress, data_neg_inf_hdr_ldra)
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{
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// Cycle through a single bad value in each color channel
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for(int offset = 0; offset < 4; offset++)
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{
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// 4x4 block input data
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std::vector<float> input(4 * 4 * 4, 0.5f);
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input[0 + offset] = -std::numeric_limits<float>::infinity();
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run_positive_test(ASTCENC_PRF_HDR_RGB_LDR_A, input.data());
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}
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}
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/** @brief Input data contains positive infinities. */
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TEST(compress, data_pos_inf_ldr)
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{
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// Cycle through a single bad value in each color channel
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for(int offset = 0; offset < 4; offset++)
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{
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// 4x4 block input data
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std::vector<float> input(4 * 4 * 4, 0.5f);
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input[0 + offset] = std::numeric_limits<float>::infinity();
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run_positive_test(ASTCENC_PRF_LDR, input.data());
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}
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}
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/** @brief Input data contains positive infinities. */
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TEST(compress, data_pos_inf_hdr)
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{
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// Cycle through a single bad value in each color channel
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for(int offset = 0; offset < 4; offset++)
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{
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// 4x4 block input data
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std::vector<float> input(4 * 4 * 4, 0.5f);
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input[0 + offset] = std::numeric_limits<float>::infinity();
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run_positive_test(ASTCENC_PRF_HDR, input.data());
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}
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}
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/** @brief Input data contains positive infinities. */
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TEST(compress, data_pos_inf_hdr_ldra)
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{
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// Cycle through a single bad value in each color channel
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for(int offset = 0; offset < 4; offset++)
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{
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// 4x4 block input data
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std::vector<float> input(4 * 4 * 4, 0.5f);
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input[0 + offset] = std::numeric_limits<float>::infinity();
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run_positive_test(ASTCENC_PRF_HDR_RGB_LDR_A, input.data());
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}
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}
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/** @brief Input data contains NaN. */
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TEST(compress, data_nan_ldr)
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{
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// Cycle through a single bad value in each color channel
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for(int offset = 0; offset < 4; offset++)
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{
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// 4x4 block input data
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std::vector<float> input(4 * 4 * 4, 0.5f);
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input[0 + offset] = std::numeric_limits<float>::quiet_NaN();
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run_positive_test(ASTCENC_PRF_LDR, input.data());
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}
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}
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/** @brief Input data contains NaN. */
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TEST(compress, data_nan_hdr)
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{
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// Cycle through a single bad value in each color channel
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for(int offset = 0; offset < 4; offset++)
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{
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// 4x4 block input data
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std::vector<float> input(4 * 4 * 4, 0.5f);
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input[0 + offset] = std::numeric_limits<float>::quiet_NaN();
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run_positive_test(ASTCENC_PRF_HDR, input.data());
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}
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}
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/** @brief Input data contains NaN. */
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TEST(compress, data_nan_hdr_ldra)
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{
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// Cycle through a single bad value in each color channel
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for(int offset = 0; offset < 4; offset++)
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{
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// 4x4 block input data
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std::vector<float> input(4 * 4 * 4, 0.5f);
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input[0 + offset] = std::numeric_limits<float>::quiet_NaN();
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run_positive_test(ASTCENC_PRF_HDR_RGB_LDR_A, input.data());
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}
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}
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}
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