SDL  2.0
SDL_yuv_sw_c.h
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1 /*
2  Simple DirectMedia Layer
3  Copyright (C) 1997-2020 Sam Lantinga <slouken@libsdl.org>
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 #include "SDL_video.h"
28 
29 /* This is the software implementation of the YUV texture support */
30 
32 {
35  int w, h;
37 
38  /* These are just so we don't have to allocate them separately */
41 
42  /* This is a temporary surface in case we have to stretch copy */
45 };
46 
48 
51  int *pitch);
53  const void *pixels, int pitch);
55  const Uint8 *Yplane, int Ypitch,
56  const Uint8 *Uplane, int Upitch,
57  const Uint8 *Vplane, int Vpitch);
59  void **pixels, int *pitch);
61 int SDL_SW_CopyYUVToRGB(SDL_SW_YUVTexture * swdata, const SDL_Rect * srcrect,
62  Uint32 target_format, int w, int h, void *pixels,
63  int pitch);
65 
66 /* FIXME: This breaks on various versions of GCC and should be rewritten using intrinsics */
67 #if 0 /* (__GNUC__ > 2) && defined(__i386__) && __OPTIMIZE__ && SDL_ASSEMBLY_ROUTINES && !defined(__clang__) */
68 #define USE_MMX_ASSEMBLY 1
69 #endif
70 
71 #endif /* SDL_yuv_sw_c_h_ */
72 
73 /* vi: set ts=4 sw=4 expandtab: */
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1572
Uint32
uint32_t Uint32
Definition: SDL_stdinc.h:203
SDL_Surface
A collection of pixels used in software blitting.
Definition: SDL_surface.h:70
SDL_SW_UpdateYUVTexturePlanar
int SDL_SW_UpdateYUVTexturePlanar(SDL_SW_YUVTexture *swdata, const SDL_Rect *rect, const Uint8 *Yplane, int Ypitch, const Uint8 *Uplane, int Upitch, const Uint8 *Vplane, int Vpitch)
Definition: SDL_yuv_sw.c:249
SDL_SW_YUVTexture::stretch
SDL_Surface * stretch
Definition: SDL_yuv_sw_c.h:43
SDL_SW_YUVTexture::pitches
Uint16 pitches[3]
Definition: SDL_yuv_sw_c.h:39
SDL_SW_DestroyYUVTexture
void SDL_SW_DestroyYUVTexture(SDL_SW_YUVTexture *swdata)
Definition: SDL_yuv_sw.c:406
SDL_SW_CopyYUVToRGB
int SDL_SW_CopyYUVToRGB(SDL_SW_YUVTexture *swdata, const SDL_Rect *srcrect, Uint32 target_format, int w, int h, void *pixels, int pitch)
Definition: SDL_yuv_sw.c:336
h
GLfloat GLfloat GLfloat GLfloat h
Definition: SDL_opengl_glext.h:1949
SDL_SW_YUVTexture::h
int h
Definition: SDL_yuv_sw_c.h:35
SDL_SW_QueryYUVTexturePixels
int SDL_SW_QueryYUVTexturePixels(SDL_SW_YUVTexture *swdata, void **pixels, int *pitch)
Definition: SDL_yuv_sw.c:132
rect
SDL_Rect rect
Definition: testrelative.c:27
SDL_SW_YUVTexture::display
SDL_Surface * display
Definition: SDL_yuv_sw_c.h:44
Uint16
uint16_t Uint16
Definition: SDL_stdinc.h:191
SDL_SW_YUVTexture::format
Uint32 format
Definition: SDL_yuv_sw_c.h:33
pixels
GLint GLint GLsizei GLsizei GLsizei GLint GLenum GLenum const GLvoid * pixels
Definition: SDL_opengl.h:1572
SDL_SW_YUVTexture::target_format
Uint32 target_format
Definition: SDL_yuv_sw_c.h:34
SDL_SW_UpdateYUVTexture
int SDL_SW_UpdateYUVTexture(SDL_SW_YUVTexture *swdata, const SDL_Rect *rect, const void *pixels, int pitch)
Definition: SDL_yuv_sw.c:141
SDL_SW_LockYUVTexture
int SDL_SW_LockYUVTexture(SDL_SW_YUVTexture *swdata, const SDL_Rect *rect, void **pixels, int *pitch)
Definition: SDL_yuv_sw.c:304
SDL_Rect
A rectangle, with the origin at the upper left (integer).
Definition: SDL_rect.h:77
SDL_SW_YUVTexture
Definition: SDL_yuv_sw_c.h:31
SDL_video.h
SDL_SW_YUVTexture::pixels
Uint8 * pixels
Definition: SDL_yuv_sw_c.h:36
SDL_SW_UnlockYUVTexture
void SDL_SW_UnlockYUVTexture(SDL_SW_YUVTexture *swdata)
Definition: SDL_yuv_sw.c:331
SDL_SW_CreateYUVTexture
SDL_SW_YUVTexture * SDL_SW_CreateYUVTexture(Uint32 format, int w, int h)
Definition: SDL_yuv_sw.c:33
SDL_SW_YUVTexture::planes
Uint8 * planes[3]
Definition: SDL_yuv_sw_c.h:40
SDL_SW_YUVTexture::w
int w
Definition: SDL_yuv_sw_c.h:35
w
GLubyte GLubyte GLubyte GLubyte w
Definition: SDL_opengl_glext.h:734
Uint8
uint8_t Uint8
Definition: SDL_stdinc.h:179