When installing my application on the iphone 14 simulator or my iPhone 13, the app icon is shown side by side (repeated vertically). Interestingly enough it will show fine on an iPhone 12 simulator. When I open the app icon file used, the image will show fine in preview. Can anyone provide any insight please?

I am currently trying to use Tier 2 Argument Buffers with an array of buffers to access an indirect buffer but am running into some issues. I am trying to get a basic example up and running but am having trouble getting the shader to read the value in the buffer. Accessing the buffer directly, without an argument buffer, works fine and shows the expected value (12345). The argument buffer shows the buffer as well (has the same cpu address in the debugger), but it seems to have a different device address than the direct one, and also returns 0xDEADBEEF instead of the correct value, which I assume is out of bounds memory or such. The metal debugger, however, correctly links together the buffers, so I can inspect the buffer in the debugger through the argument buffer, and it contains the correct value. I have the following (Rust) code: rust // Setup let argument_desc = mtl::ArgumentDescriptor::new(); argument_desc.set_data_type(mtl::MTLDataType::Pointer); argument_desc.set_index(0); argument_desc.set_array_length(1024); let encoder = device.new_argument_encoder(mtl::Array::from_slice(&[argument_desc])); let argument_buffer = device.new_buffer(encoder.encoded_length(), mtl::MTLResourceOptions::empty()); encoder.set_argument_buffer(&argument_buffer, 0); let buffer = self.device.new_buffer_with_data( [12345u32].as_ptr() as _, mem::size_of::u32() as _, mtl::MTLResourceOptions::StorageModeShared | mtl::MTLResourceOptions::CPUCacheModeDefaultCache ); encoder.set_buffer(0, &buffer, 0); // Command Encoding let encoder = command_buffer.new_compute_command_encoder(); // ...set pipeline state encoder.set_buffer(0, Some(&bufferArray), 0); encoder.use_resource(&buffer, mtl::MTLResourceUsage::Read); encoder.set_bytes( 1, mem::size_of::u32() as _, &0 as *const _ as _, ); encoder.set_buffer( 2, Some(&buffer), 0, ); encoder.dispatch_thread_groups( mtl::MTLSize { width: 1, height: 1, depth: 1, }, mtl::MTLSize { width: 1, height: 1, depth: 1, }, ); This is the compute kernel (with Xcode debug annotations): msl #include metal_stdlib #include simd/simd.h using namespace metal; struct Argument { constant uint32_t *ptr; }; kernel void main0( constant Argument *bufferArray [[buffer(0)]], // bufferArray = 0x400400000 constant uint32_t& buffer_index [[buffer(1)]], // buffer_index = 0 constant uint32_t *buffer [[buffer(2)]] // buffer = 0x400024000 ) { uint32_t x = *buffer; // x = 12345 constant uint32_t *ptr = bufferArray[buffer_index].ptr; // ptr = 0x40002000 uint32_t y = *ptr; // y = 0xDEADBEEF } If anyone has any ideas as to why the buffer access seems to be invalid, I'd greatly appreciate it.

Thanks first:) #include <FL/Fl.H> #include <FL/Fl_Window.H> #include <FL/Fl_Box.H> int main(int argc, char **argv) { Fl_Window *window = new Fl_Window(340, 180); Fl_Box *box = new Fl_Box(20, 40, 300, 100, "Hello, World!"); box->box(FL_UP_BOX); box->labelfont(FL_BOLD + FL_ITALIC); box->labelsize(36); box->labeltype(FL_SHADOW_LABEL); window->end(); window->show(argc, argv); return Fl::run(); } _**This is the code. I am using Apple M1 Max. Below is the message I got:**_ Apple clang version 14.0.0 (clang-1400.0.29.202) Target: arm64-apple-darwin22.1.0 Thread model: posix InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin  "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang" -cc1 -triple arm64-apple-macosx13.0.0 -Wundef-prefix=TARGET_OS_ -Wdeprecated-objc-isa-usage -Werror=deprecated-objc-isa-usage -Werror=implicit-function-declaration -emit-obj -mrelax-all --mrelax-relocations -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name fltk_test.cpp -mrelocation-model pic -pic-level 2 -mframe-pointer=non-leaf -fno-strict-return -fno-rounding-math -funwind-tables=2 -fobjc-msgsend-selector-stubs -target-sdk-version=13.0 -fvisibility-inlines-hidden-static-local-var -target-cpu apple-m1 -target-feature +v8.5a -target-feature +fp-armv8 -target-feature +neon -target-feature +crc -target-feature +crypto -target-feature +dotprod -target-feature +fp16fml -target-feature +ras -target-feature +lse -target-feature +rdm -target-feature +rcpc -target-feature +zcm -target-feature +zcz -target-feature +fullfp16 -target-feature +sm4 -target-feature +sha3 -target-feature +sha2 -target-feature +aes -target-abi darwinpcs -fallow-half-arguments-and-returns -debugger-tuning=lldb -target-linker-version 820.1 -v -resource-dir /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/clang/14.0.0 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk -I/usr/local/include -stdlib=libc++ -internal-isystem /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/c++/v1 -internal-isystem /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/local/include -internal-isystem /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/clang/14.0.0/include -internal-externc-isystem /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include -internal-externc-isystem /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include -Wno-reorder-init-list -Wno-implicit-int-float-conversion -Wno-c99-designator -Wno-final-dtor-non-final-class -Wno-extra-semi-stmt -Wno-misleading-indentation -Wno-quoted-include-in-framework-header -Wno-implicit-fallthrough -Wno-enum-enum-conversion -Wno-enum-float-conversion -Wno-elaborated-enum-base -Wno-reserved-identifier -Wno-gnu-folding-constant -Wno-cast-function-type -Wno-bitwise-instead-of-logical -fdeprecated-macro -fdebug-compilation-dir=/Users/yuqing/git/repository/basic/src/test -ferror-limit 19 -stack-protector 1 -fstack-check -mdarwin-stkchk-strong-link -fblocks -fencode-extended-block-signature -fregister-global-dtors-with-atexit -fgnuc-version=4.2.1 -fno-cxx-modules -fcxx-exceptions -fexceptions -fmax-type-align=16 -fcommon -fcolor-diagnostics -clang-vendor-feature=+messageToSelfInClassMethodIdReturnType -clang-vendor-feature=+disableInferNewAvailabilityFromInit -clang-vendor-feature=+disableNonDependentMemberExprInCurrentInstantiation -fno-odr-hash-protocols -clang-vendor-feature=+enableAggressiveVLAFolding -clang-vendor-feature=+revert09abecef7bbf -clang-vendor-feature=+thisNoAlignAttr -clang-vendor-feature=+thisNoNullAttr -mllvm -disable-aligned-alloc-awareness=1 -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /var/folders/ns/60wdjhcd5cng9zqv135qjr3c0000gn/T/fltk_test-259428.o -x c++ fltk_test.cpp clang -cc1 version 14.0.0 (clang-1400.0.29.202) default target arm64-apple-darwin22.1.0 ignoring nonexistent directory "/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/local/include" ignoring nonexistent directory "/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/Library/Frameworks" #include "..." search starts here: #include <...> search starts here:  /usr/local/include  /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/c++/v1  /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/clang/14.0.0/include  /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include  /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include  /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks (framework directory) End of search list.  "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld" -demangle -lto_library /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/libLTO.dylib -no_deduplicate -dynamic -arch arm64 -platform_version macos 13.0.0 13.0 -syslibroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk -o a.out -L/usr/local/lib /var/folders/ns/60wdjhcd5cng9zqv135qjr3c0000gn/T/fltk_test-259428.o -lc++ -lSystem /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/clang/14.0.0/lib/darwin/libclang_rt.osx.a Undefined symbols for architecture arm64:  "fl_define_FL_SHADOW_LABEL()", referenced from:    _main in fltk_test-259428.o  "Fl::run()", referenced from:    _main in fltk_test-259428.o  "Fl_Box::Fl_Box(int, int, int, int, char const*)", referenced from:    _main in fltk_test-259428.o  "Fl_Group::end()", referenced from:    _main in fltk_test-259428.o  "Fl_Window::show(int, char**)", referenced from:    _main in fltk_test-259428.o  "Fl_Window::Fl_Window(int, int, char const*)", referenced from:    _main in fltk_test-259428.o ld: symbol(s) not found for architecture arm64 clang: error: linker command failed with exit code 1 (use -v to see invocation)

How can I create a dashed line using a Metal shader? I'm thinking something similar to the CoreGraphics "lineDash" property.

Hello I want to programmatically generate a random patterned image, think wallpaper. The method of generation is yet to be established and is unimportant for this question. The output will either be a UIImage or a CIImage object. Then I want to take a random area of that pattern, a crop effectively, and make one of any number of alterations to it. A non-exhaustive list might include: rotation, swapping colours, other colour effects, shift or scroll. The area affected might also be one of any number of shapes. A non-exhaustive list might include: square, rectangle, triangle, circle, oval. Essentially, I want to take a uniform pattern and break or disrupt it in random ways. So I've been Googling how I might do this and everything seems to point to the Core Image framework, particularly the filters. Although it seems less clear to me how to do transformations, crops and composite images. My question simply is, am I on the right path pursuing Core Image or are there other ways to achieve these effects? Thanks Jim