sdl

问题 I have started trying to use SDL in Xcode 4.3.2 so I started up a Cocoa application for Mac OS X and connected all my frameworks : OpenGL, SDL etc. I don't have SDL_Image, SDL_Mixer etc. (Do I need these?) When I try to compile the project that just has SDLmain.h and SDLmain.m I get this error: Undefined symbols for architecture x86_64: "_SDL_main", referenced from: -[SDLMain applicationDidFinishLaunching:] in SDLMain.o ld: symbol(s) not found for architecture x86_64 clang: error: linker

问题 I'm having troubles with sample templates and overall installing of SDL on my Xcode 4. There are no tutorials and old templates just don't work! If anybody has Xcode 4 SDL templates, please share. EDIT: @Joshua Nozzi I tried opening template from old version of XCODE, 3.2 and it opened, but there were no files in the project and it said - base sdk missing. I tried adding SDL.framework but it didn't help! 回答1: I just pushed my working SDL test Xcode project as a public Github repository, so

问题 Yes, I know how to create an SDL thread. int myfunc(void* data) { //my code... } SDL_CreateThread* mythread=SDL_CreateThread(myfunc,NULL); But what if i want to do something like: int myfunc(void* data,int myparameter1,char myparameter2) { //my code... } SDL_CreateThread* mythread=SDL_CreateThread(myfunc,NULL,42,'c'); i.e how to create a thread for a function with more than one parameters (parameters excluding the usual 'void* data') If this is not possible can you suggest any method by which

问题 I'm using the SDL library in my project and I'm working on a Windows platform. When I'd decided to move my project to SDL 2, I encountered a problem: There was an option in SDL 1.2 to print output from stdout/stderr into the console window, rather than to files by defining a NO_STDIO_REDIRECT macro. However, I haven't found that macro in SDL 2. Is there a way to print SDL 2 output to the console instead of the standard files? 回答1: I suspect that NO_STDIO_REDIRECT is no longer part of SDL2.

问题 I plan on making a game, and I want to create some background animations for said game. One of these animations is a rotating rectangle. I've looked all over, and I cannot find any form of math or logic that allows me to rotate a rectangle (SDL_Rect to be specific, but you might have already known that). I can't figure out the math for myself, I really don't have any working code for this, so I can't show anything. Essentially I'm looking for some type of logic that I can apply the rectangle

问题 I am running ffplay as a background process which supplies image data to my main UI process. I have set " SDL_VIDEODRIVER = dummy " to suppress the ffplay video being shown in a SDL window. The issue is that the ffplay process still appears as an application window (dock, CMD+TAB entries etc.) even if the video output window is not displayed. How can I avoid that? 回答1: The option -nodisp worked fine for me (together with -autoexit ). Tested in a Ubuntu 18.04, ffmpeg 3.4.6: ffplay -f lavfi -i

问题 System: black Macbook running Mac os X 10.5.5 (Leopard) I want to compile an SDL hello-world application using only g++. Xcode is good for macintosh but I want cross-platform compatibility, so I won't use any of the coaca framework (no menus, no buttons, etc). Also, porting Xcode projects to other os's is not something that sounds fun. I downloaded and installed SDL into /Library/Frameworks. The big question is: what goes in the makefile (assuming just a helloWorld.cpp file in the source). I

问题 After installing SDL and SDL-devel in MacOS X 10.6 (Snow Leopard), trying to configure some source code that requires SDL yields: checking for sdl-config... no checking for SDL - version >= 1.2.0... no *** The sdl-config script installed by SDL could not be found *** If SDL was installed in PREFIX, make sure PREFIX/bin is in *** your path, or set the SDL_CONFIG environment variable to the *** full path to sdl-config. configure: error: *** SDL version 1.2.0 not found! Does anyone know where to

问题 I have a working SDL/Haskell application that I would like to build using Cabal instead of the current Makefile (because that is the "Haskell way"). The Makefile is itself very simple, and I was hoping that the default cabal build process could allow me to reconstruct a build command specified in my Makefile. The problem is that it makes use of "sdl-config", a utility that gives you all the necessary cc- compiler options: wrapper.o: SDLWrapper_stub.h ghc -no-hs-main `sdl-config --cflags`

问题 Is there a way to use sdl-config in CMake? 回答1: Yes. Just use find_program() to find it and execute_process() to run it and capture its output. If you actually want to test for SDL and use it in your project, CMake comes with FindSDL.cmake , so you could just put find_package(SDL) in your CMakeLists.txt and then just access SDL_CFLAGS and so on directly. 来源： https://stackoverflow.com/questions/3792327/cmake-sdl-config