How to install SDL_gfx on windows

[Suceru]

Mingw is currently installed, its directory is in D:\Program Files\mingw-w64\x86_64-8.1.0-win32-seh-rt_v6-rev0\mingw64 , the SDL_image and ttf are installed to copy the entire SDL2_image-devel-2.0.5-mingw.tar.gz\SDL2_image-devel-2.0.5-mingw.tar\SDL2_image-2.0.5\x86_64-w64-mingw32 folder to D:\Program Files\mingw-w64\x86_64-8.1.0-win32-seh-rt_v6-rev0\mingw64\x86_64-w64-mingw32

But SDL_gfx is different from SDL_ttf, it does not have the x86_64-w64-mingw32 folder, I do not understand how to install SDL_gfx-2.0.26.tar.gz to Windows 10 .

[veeableful]

Hi @Suceru! Sorry for the late reply. Could you try this method and see if it works for you? I will add it to the README if it's simple enough to follow.

[Suceru]

Hi @Suceru! Sorry for the late reply. Could you try this method and see if it works for you? I will add it to the README if it's simple enough to follow. @veeableful I'm not familiar with mingw, i downloadedSDL2_gfx.dll and put it in the \bin directory like SDL_image. Then copy all the .h files to the x86_64-w64-mingw32\include\SDL2 folder, and change the file name and header file to 2 (eg:like SDL2_gfxPrimitives.h). When using go run C:\Users\fidax\go\src\github.com\veandco\go-sdl2\.go-sdl2-examples\examples\gfx command, it prompts ld.exe: cannot find -lSDL2_gfx

copy to

change the file names

In CMD run go run gfx.go

[veeableful]

Hi @Suceru, have you tried to put it inside lib as well?

[Suceru]

@veeableful Sorry, when I did this, I didn't know what I should do next. I have put SDL2_gfx.dll in \lib, Run ... .

# github.com/veandco/go-sdl2/gfx
go\src\github.com\veandco\go-sdl2\gfx\sdl_gfx.go:91:90: cannot use _cgo0 (type *_Ctype_struct_SDL_Renderer) as type *_Ctype_struct_SDL_Surface in argument to _Cfunc_pixelColor
go\src\github.com\veandco\go-sdl2\gfx\sdl_gfx.go:103:86: cannot use _cgo0 (type *_Ctype_struct_SDL_Renderer) as type *_Ctype_struct_SDL_Surface in argument to _Cfunc_pixelRGBA
go\src\github.com\veandco\go-sdl2\gfx\sdl_gfx.go:113:81: cannot use _cgo0 (type *_Ctype_struct_SDL_Renderer) as type *_Ctype_struct_SDL_Surface in argument to _Cfunc_hlineColor
go\src\github.com\veandco\go-sdl2\gfx\sdl_gfx.go:126:92: cannot use _cgo0 (type *_Ctype_struct_SDL_Renderer) as type *_Ctype_struct_SDL_Surface in argument to _Cfunc_hlineRGBA
go\src\github.com\veandco\go-sdl2\gfx\sdl_gfx.go:136:81: cannot use _cgo0 (type *_Ctype_struct_SDL_Renderer) as type *_Ctype_struct_SDL_Surface in argument to _Cfunc_vlineColor
go\src\github.com\veandco\go-sdl2\gfx\sdl_gfx.go:149:92: cannot use _cgo0 (type *_Ctype_struct_SDL_Renderer) as type *_Ctype_struct_SDL_Surface in argument to _Cfunc_vlineRGBA
go\src\github.com\veandco\go-sdl2\gfx\sdl_gfx.go:160:91: cannot use _cgo0 (type *_Ctype_struct_SDL_Renderer) as type *_Ctype_struct_SDL_Surface in argument to _Cfunc_rectangleColor
go\src\github.com\veandco\go-sdl2\gfx\sdl_gfx.go:174:102: cannot use _cgo0 (type *_Ctype_struct_SDL_Renderer) as type *_Ctype_struct_SDL_Surface in argument to _Cfunc_rectangleRGBA
go\src\github.com\veandco\go-sdl2\gfx\sdl_gfx.go:186:104: cannot use _cgo0 (type *_Ctype_struct_SDL_Renderer) as type *_Ctype_struct_SDL_Surface in argument to _Cfunc_roundedRectangleColor
go\src\github.com\veandco\go-sdl2\gfx\sdl_gfx.go:201:115: cannot use _cgo0 (type *_Ctype_struct_SDL_Renderer) as type *_Ctype_struct_SDL_Surface in argument to _Cfunc_roundedRectangleRGBA
go\src\github.com\veandco\go-sdl2\gfx\sdl_gfx.go:201:115: too many errors

[veeableful]

Hmm that's strange.. are you using sdl.Surface instead of sdl.Renderer with gfx functions?

[Suceru]

@veeableful I am directly running the code for the example.

go\src\github.com\veandco\go-sdl2.go-sdl2-examples\examples\gfx\gfx.go

That's what he originally wrote. So, I don't known

[veeableful]

Hi @Suceru, I see that you are using sdl.Surface (at least from what I can tell in the screenshot above) and the example doesn't have sdl.Surface. Are you using the latest go-sdl2?

[Suceru]

Yes, go-sdl2 is the latest version. There is no SDL_surface code in the examples, only SDL_renderer. The location of this error message comes from the file SDL_gfx.go

. # github.com/veandco/go-sdl2/gfx go\src\github.com\veandco\go-sdl2\gfx\sdl_gfx.go:91:90: cannot use _cgo0 (type _Ctype_struct_SDL_Renderer) as type _Ctype_struct_SDL_Surface in argument to _Cfunc_pixelColor

My other SDL2 configurations can be used normally, but sdl_gfx does not know how to install. I put the sdl_gfx.dll in the link you posted earlier into the \ binand \ lib folders (I don't know if it is correct). In addition, copy the .h file in the downloaded sdl_gfx archive to the\included\sdl2 folder and then#include <SDL/SDL.h> inside changed to #include <SDL2/SDL.h> When the#include <SDL2 / SDL.h> error is not prompted, show the SDL_surface cannot be used. My intuition is that only go-sdl_gfx is correct, there should be problems in the setting part ofmingw

[veeableful]

Hmm that's weird... Could you post the definition of pixelColor in the SDL2_gfxPrimitives.h file? It should be in the include directory. The one I have looks like this:

SDL2_GFXPRIMITIVES_SCOPE int pixelColor(SDL_Renderer * renderer, Sint16 x, Sint16 y, Uint32 color);

[Suceru]

@veeableful Oh, thank you guys, I have configured. First of all, I mistakenly regarded the gfx of SDLas the gfx of SDL2 (I saw two versions 1.0.4 and 2.0.25 on the website, I didn't pay much attention to 2.0.25 as the latest version of SDL2). Then I copied the .h and .c files of SDL2-gfx to the \include\SDL2 of mingw folder and it worked fine. The correct is:

The err is:

put .h and .c to \SDL2

put SDL_gfx.dll to \bin and \lib(If this are missing , will be errs:1. exit status 3221225781 and 2. ``` /x86_64-w64-mingw32/bin/ld.exe: cannot find -lSDL2_gfx collect2.exe: error: ld returned 1 exit status

<img width="582" alt="SDL2_gfx-dll" src="https://user-images.githubusercontent.com/20983345/72696786-81527300-3b78-11ea-9dd4-a72021db1537.PNG">

[Suceru]

@veeableful It turns out that the method you proposed earlier is correct, as long as you download the .dll file and .h and .c files, you can use it. oh, thank you!!!

[veeableful]

No problem @Suceru! Glad I could help 😃