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Merge pull request #118 from elvodqa/master

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Add SDL2_image
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Dan Balasescu 2022-05-27 14:32:51 +09:00 committed by GitHub
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#region License
/* SDL2# - C# Wrapper for SDL2
*
* Copyright (c) 2013-2021 Ethan Lee.
*
* 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.
*
* Ethan "flibitijibibo" Lee <flibitijibibo@flibitijibibo.com>
*
*/
#endregion
#region Using Statements
using System;
using System.Runtime.InteropServices;
#endregion
namespace SDL2
{
public static class SDL_image
{
#region SDL2# Variables
/* Used by DllImport to load the native library. */
private const string nativeLibName = "SDL2_image";
#endregion
#region SDL_image.h
/* Similar to the headers, this is the version we're expecting to be
* running with. You will likely want to check this somewhere in your
* program!
*/
public const int SDL_IMAGE_MAJOR_VERSION = 2;
public const int SDL_IMAGE_MINOR_VERSION = 0;
public const int SDL_IMAGE_PATCHLEVEL = 6;
[Flags]
public enum IMG_InitFlags
{
IMG_INIT_JPG = 0x00000001,
IMG_INIT_PNG = 0x00000002,
IMG_INIT_TIF = 0x00000004,
IMG_INIT_WEBP = 0x00000008
}
public static void SDL_IMAGE_VERSION(out SDL.SDL_version X)
{
X.major = SDL_IMAGE_MAJOR_VERSION;
X.minor = SDL_IMAGE_MINOR_VERSION;
X.patch = SDL_IMAGE_PATCHLEVEL;
}
[DllImport(nativeLibName, EntryPoint = "IMG_Linked_Version", CallingConvention = CallingConvention.Cdecl)]
private static extern IntPtr INTERNAL_IMG_Linked_Version();
public static SDL.SDL_version IMG_Linked_Version()
{
SDL.SDL_version result;
IntPtr result_ptr = INTERNAL_IMG_Linked_Version();
result = (SDL.SDL_version) Marshal.PtrToStructure(
result_ptr,
typeof(SDL.SDL_version)
);
return result;
}
[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
public static extern int IMG_Init(IMG_InitFlags flags);
[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
public static extern void IMG_Quit();
/* IntPtr refers to an SDL_Surface* */
[DllImport(nativeLibName, EntryPoint = "IMG_Load", CallingConvention = CallingConvention.Cdecl)]
private static extern unsafe IntPtr INTERNAL_IMG_Load(
byte* file
);
public static unsafe IntPtr IMG_Load(string file)
{
byte* utf8File = SDL.Utf8EncodeHeap(file);
IntPtr handle = INTERNAL_IMG_Load(
utf8File
);
Marshal.FreeHGlobal((IntPtr) utf8File);
return handle;
}
/* src refers to an SDL_RWops*, IntPtr to an SDL_Surface* */
/* THIS IS A PUBLIC RWops FUNCTION! */
[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
public static extern IntPtr IMG_Load_RW(
IntPtr src,
int freesrc
);
/* src refers to an SDL_RWops*, IntPtr to an SDL_Surface* */
/* THIS IS A PUBLIC RWops FUNCTION! */
[DllImport(nativeLibName, EntryPoint = "IMG_LoadTyped_RW", CallingConvention = CallingConvention.Cdecl)]
private static extern unsafe IntPtr INTERNAL_IMG_LoadTyped_RW(
IntPtr src,
int freesrc,
byte* type
);
public static unsafe IntPtr IMG_LoadTyped_RW(
IntPtr src,
int freesrc,
string type
) {
int utf8TypeBufSize = SDL.Utf8Size(type);
byte* utf8Type = stackalloc byte[utf8TypeBufSize];
return INTERNAL_IMG_LoadTyped_RW(
src,
freesrc,
SDL.Utf8Encode(type, utf8Type, utf8TypeBufSize)
);
}
/* IntPtr refers to an SDL_Texture*, renderer to an SDL_Renderer* */
[DllImport(nativeLibName, EntryPoint = "IMG_LoadTexture", CallingConvention = CallingConvention.Cdecl)]
private static extern unsafe IntPtr INTERNAL_IMG_LoadTexture(
IntPtr renderer,
byte* file
);
public static unsafe IntPtr IMG_LoadTexture(
IntPtr renderer,
string file
) {
byte* utf8File = SDL.Utf8EncodeHeap(file);
IntPtr handle = INTERNAL_IMG_LoadTexture(
renderer,
utf8File
);
Marshal.FreeHGlobal((IntPtr) utf8File);
return handle;
}
/* renderer refers to an SDL_Renderer*.
* src refers to an SDL_RWops*.
* IntPtr to an SDL_Texture*.
*/
/* THIS IS A PUBLIC RWops FUNCTION! */
[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
public static extern IntPtr IMG_LoadTexture_RW(
IntPtr renderer,
IntPtr src,
int freesrc
);
/* renderer refers to an SDL_Renderer*.
* src refers to an SDL_RWops*.
* IntPtr to an SDL_Texture*.
*/
/* THIS IS A PUBLIC RWops FUNCTION! */
[DllImport(nativeLibName, EntryPoint = "IMG_LoadTextureTyped_RW", CallingConvention = CallingConvention.Cdecl)]
private static extern unsafe IntPtr INTERNAL_IMG_LoadTextureTyped_RW(
IntPtr renderer,
IntPtr src,
int freesrc,
byte* type
);
public static unsafe IntPtr IMG_LoadTextureTyped_RW(
IntPtr renderer,
IntPtr src,
int freesrc,
string type
) {
byte* utf8Type = SDL.Utf8EncodeHeap(type);
IntPtr handle = INTERNAL_IMG_LoadTextureTyped_RW(
renderer,
src,
freesrc,
utf8Type
);
Marshal.FreeHGlobal((IntPtr) utf8Type);
return handle;
}
/* IntPtr refers to an SDL_Surface* */
[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
public static extern IntPtr IMG_ReadXPMFromArray(
[In()] [MarshalAs(UnmanagedType.LPArray, ArraySubType = UnmanagedType.LPStr)]
string[] xpm
);
/* surface refers to an SDL_Surface* */
[DllImport(nativeLibName, EntryPoint = "IMG_SavePNG", CallingConvention = CallingConvention.Cdecl)]
private static extern unsafe int INTERNAL_IMG_SavePNG(
IntPtr surface,
byte* file
);
public static unsafe int IMG_SavePNG(IntPtr surface, string file)
{
byte* utf8File = SDL.Utf8EncodeHeap(file);
int result = INTERNAL_IMG_SavePNG(
surface,
utf8File
);
Marshal.FreeHGlobal((IntPtr) utf8File);
return result;
}
/* surface refers to an SDL_Surface*, dst to an SDL_RWops* */
/* THIS IS A PUBLIC RWops FUNCTION! */
[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
public static extern int IMG_SavePNG_RW(
IntPtr surface,
IntPtr dst,
int freedst
);
/* surface refers to an SDL_Surface* */
[DllImport(nativeLibName, EntryPoint = "IMG_SaveJPG", CallingConvention = CallingConvention.Cdecl)]
private static extern unsafe int INTERNAL_IMG_SaveJPG(
IntPtr surface,
byte* file,
int quality
);
public static unsafe int IMG_SaveJPG(IntPtr surface, string file, int quality)
{
byte* utf8File = SDL.Utf8EncodeHeap(file);
int result = INTERNAL_IMG_SaveJPG(
surface,
utf8File,
quality
);
Marshal.FreeHGlobal((IntPtr) utf8File);
return result;
}
/* surface refers to an SDL_Surface*, dst to an SDL_RWops* */
/* THIS IS A PUBLIC RWops FUNCTION! */
[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
public static extern int IMG_SaveJPG_RW(
IntPtr surface,
IntPtr dst,
int freedst,
int quality
);
public static string IMG_GetError()
{
return SDL.SDL_GetError();
}
public static void IMG_SetError(string fmtAndArglist)
{
SDL.SDL_SetError(fmtAndArglist);
}
#region Animated Image Support
/* This region is only available in 2.0.6 or higher. */
public struct IMG_Animation
{
public int w;
public int h;
public IntPtr frames; /* SDL_Surface** */
public IntPtr delays; /* int* */
}
/* IntPtr refers to an IMG_Animation* */
[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
public static extern IntPtr IMG_LoadAnimation(
[In()] [MarshalAs(UnmanagedType.LPStr)]
string file
);
/* IntPtr refers to an IMG_Animation*, src to an SDL_RWops* */
/* THIS IS A PUBLIC RWops FUNCTION! */
[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
public static extern IntPtr IMG_LoadAnimation_RW(
IntPtr src,
int freesrc
);
/* IntPtr refers to an IMG_Animation*, src to an SDL_RWops* */
/* THIS IS A PUBLIC RWops FUNCTION! */
[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
public static extern IntPtr IMG_LoadAnimationTyped_RW(
IntPtr src,
int freesrc,
[In()] [MarshalAs(UnmanagedType.LPStr)]
string type
);
/* anim refers to an IMG_Animation* */
[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
public static extern void IMG_FreeAnimation(IntPtr anim);
/* IntPtr refers to an IMG_Animation*, src to an SDL_RWops* */
/* THIS IS A PUBLIC RWops FUNCTION! */
[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
public static extern IntPtr IMG_LoadGIFAnimation_RW(IntPtr src);
#endregion
#endregion
}
}