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Diffstat (limited to 'dependencies/SDL/SDL_metal.h')
-rw-r--r-- | dependencies/SDL/SDL_metal.h | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/dependencies/SDL/SDL_metal.h b/dependencies/SDL/SDL_metal.h new file mode 100644 index 0000000..9285471 --- /dev/null +++ b/dependencies/SDL/SDL_metal.h @@ -0,0 +1,113 @@ +/* + Simple DirectMedia Layer + Copyright (C) 1997-2022 Sam Lantinga <slouken@libsdl.org> + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. +*/ + +/** + * \file SDL_metal.h + * + * Header file for functions to creating Metal layers and views on SDL windows. + */ + +#ifndef SDL_metal_h_ +#define SDL_metal_h_ + +#include "SDL_video.h" + +#include "begin_code.h" +/* Set up for C function definitions, even when using C++ */ +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief A handle to a CAMetalLayer-backed NSView (macOS) or UIView (iOS/tvOS). + * + * \note This can be cast directly to an NSView or UIView. + */ +typedef void *SDL_MetalView; + +/** + * \name Metal support functions + */ +/* @{ */ + +/** + * Create a CAMetalLayer-backed NSView/UIView and attach it to the specified + * window. + * + * On macOS, this does *not* associate a MTLDevice with the CAMetalLayer on + * its own. It is up to user code to do that. + * + * The returned handle can be casted directly to a NSView or UIView. To access + * the backing CAMetalLayer, call SDL_Metal_GetLayer(). + * + * \since This function is available since SDL 2.0.12. + * + * \sa SDL_Metal_DestroyView + * \sa SDL_Metal_GetLayer + */ +extern DECLSPEC SDL_MetalView SDLCALL SDL_Metal_CreateView(SDL_Window * window); + +/** + * Destroy an existing SDL_MetalView object. + * + * This should be called before SDL_DestroyWindow, if SDL_Metal_CreateView was + * called after SDL_CreateWindow. + * + * \since This function is available since SDL 2.0.12. + * + * \sa SDL_Metal_CreateView + */ +extern DECLSPEC void SDLCALL SDL_Metal_DestroyView(SDL_MetalView view); + +/** + * Get a pointer to the backing CAMetalLayer for the given view. + * + * \since This function is available since SDL 2.0.14. + * + * \sa SDL_Metal_CreateView + */ +extern DECLSPEC void *SDLCALL SDL_Metal_GetLayer(SDL_MetalView view); + +/** + * Get the size of a window's underlying drawable in pixels (for use with + * setting viewport, scissor & etc). + * + * \param window SDL_Window from which the drawable size should be queried + * \param w Pointer to variable for storing the width in pixels, may be NULL + * \param h Pointer to variable for storing the height in pixels, may be NULL + * + * \since This function is available since SDL 2.0.14. + * + * \sa SDL_GetWindowSize + * \sa SDL_CreateWindow + */ +extern DECLSPEC void SDLCALL SDL_Metal_GetDrawableSize(SDL_Window* window, int *w, + int *h); + +/* @} *//* Metal support functions */ + +/* Ends C function definitions when using C++ */ +#ifdef __cplusplus +} +#endif +#include "close_code.h" + +#endif /* SDL_metal_h_ */ |