Atlas - SDL_yuv_sw_c.h
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1/*
2  Simple DirectMedia Layer
3  Copyright (C) 1997-2026 Sam Lantinga <[email protected]>
4
5  This software is provided 'as-is', without any express or implied
6  warranty.  In no event will the authors be held liable for any damages
7  arising from the use of this software.
8
9  Permission is granted to anyone to use this software for any purpose,
10  including commercial applications, and to alter it and redistribute it
11  freely, subject to the following restrictions:
12
13  1. The origin of this software must not be misrepresented; you must not
14     claim that you wrote the original software. If you use this software
15     in a product, an acknowledgment in the product documentation would be
16     appreciated but is not required.
17  2. Altered source versions must be plainly marked as such, and must not be
18     misrepresented as being the original software.
19  3. This notice may not be removed or altered from any source distribution.
20*/
21
22#ifndef SDL_yuv_sw_c_h_
23#define SDL_yuv_sw_c_h_
24
25#include "SDL_internal.h"
26
27// This is the software implementation of the YUV texture support
28
29struct SDL_SW_YUVTexture
30{
31    SDL_PixelFormat format;
32    SDL_Colorspace colorspace;
33    SDL_PixelFormat target_format;
34    int w, h;
35    Uint8 *pixels;
36
37    // These are just so we don't have to allocate them separately
38    int pitches[3];
39    Uint8 *planes[3];
40
41    // This is a temporary surface in case we have to stretch copy
42    SDL_Surface *stretch;
43    SDL_Surface *display;
44};
45
46typedef struct SDL_SW_YUVTexture SDL_SW_YUVTexture;
47
48extern SDL_SW_YUVTexture *SDL_SW_CreateYUVTexture(SDL_PixelFormat format, SDL_Colorspace colorspace, int w, int h);
49extern bool SDL_SW_QueryYUVTexturePixels(SDL_SW_YUVTexture *swdata, void **pixels, int *pitch);
50extern bool SDL_SW_UpdateYUVTexture(SDL_SW_YUVTexture *swdata, const SDL_Rect *rect, const void *pixels, int pitch);
51extern bool SDL_SW_UpdateYUVTexturePlanar(SDL_SW_YUVTexture *swdata, const SDL_Rect *rect,
52                                         const Uint8 *Yplane, int Ypitch,
53                                         const Uint8 *Uplane, int Upitch,
54                                         const Uint8 *Vplane, int Vpitch);
55extern bool SDL_SW_UpdateNVTexturePlanar(SDL_SW_YUVTexture *swdata, const SDL_Rect *rect,
56                                         const Uint8 *Yplane, int Ypitch,
57                                         const Uint8 *UVplane, int UVpitch);
58extern bool SDL_SW_LockYUVTexture(SDL_SW_YUVTexture *swdata, const SDL_Rect *rect, void **pixels, int *pitch);
59extern void SDL_SW_UnlockYUVTexture(SDL_SW_YUVTexture *swdata);
60extern bool SDL_SW_CopyYUVToRGB(SDL_SW_YUVTexture *swdata, const SDL_Rect *srcrect, SDL_PixelFormat target_format, int w, int h, void *pixels, int pitch);
61extern void SDL_SW_DestroyYUVTexture(SDL_SW_YUVTexture *swdata);
62
63#endif // SDL_yuv_sw_c_h_
64
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