SDL  2.0
SDL_yuv_sw_c.h
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1 /*
2  Simple DirectMedia Layer
3  Copyright (C) 1997-2018 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 #include "../SDL_internal.h"
22 
23 #include "SDL_video.h"
24 
25 /* This is the software implementation of the YUV texture support */
26 
28 {
31  int w, h;
33 
34  /* These are just so we don't have to allocate them separately */
37 
38  /* This is a temporary surface in case we have to stretch copy */
41 };
42 
44 
47  int *pitch);
49  const void *pixels, int pitch);
51  const Uint8 *Yplane, int Ypitch,
52  const Uint8 *Uplane, int Upitch,
53  const Uint8 *Vplane, int Vpitch);
55  void **pixels, int *pitch);
57 int SDL_SW_CopyYUVToRGB(SDL_SW_YUVTexture * swdata, const SDL_Rect * srcrect,
58  Uint32 target_format, int w, int h, void *pixels,
59  int pitch);
61 
62 /* FIXME: This breaks on various versions of GCC and should be rewritten using intrinsics */
63 #if 0 /* (__GNUC__ > 2) && defined(__i386__) && __OPTIMIZE__ && SDL_ASSEMBLY_ROUTINES && !defined(__clang__) */
64 #define USE_MMX_ASSEMBLY 1
65 #endif
66 
67 /* vi: set ts=4 sw=4 expandtab: */
int SDL_SW_UpdateYUVTexture(SDL_SW_YUVTexture *swdata, const SDL_Rect *rect, const void *pixels, int pitch)
Definition: SDL_yuv_sw.c:139
SDL_Rect rect
Definition: testrelative.c:27
GLfloat GLfloat GLfloat GLfloat h
A collection of pixels used in software blitting.
Definition: SDL_surface.h:69
uint32_t Uint32
Definition: SDL_stdinc.h:181
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:247
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1572
SDL_SW_YUVTexture * SDL_SW_CreateYUVTexture(Uint32 format, int w, int h)
Definition: SDL_yuv_sw.c:31
uint8_t Uint8
Definition: SDL_stdinc.h:157
GLubyte GLubyte GLubyte GLubyte w
void SDL_SW_UnlockYUVTexture(SDL_SW_YUVTexture *swdata)
Definition: SDL_yuv_sw.c:329
void SDL_SW_DestroyYUVTexture(SDL_SW_YUVTexture *swdata)
Definition: SDL_yuv_sw.c:404
GLint GLint GLsizei GLsizei GLsizei GLint GLenum GLenum const GLvoid * pixels
Definition: SDL_opengl.h:1572
SDL_Surface * stretch
Definition: SDL_yuv_sw_c.h:39
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:334
Uint8 * planes[3]
Definition: SDL_yuv_sw_c.h:36
Uint16 pitches[3]
Definition: SDL_yuv_sw_c.h:35
uint16_t Uint16
Definition: SDL_stdinc.h:169
int SDL_SW_LockYUVTexture(SDL_SW_YUVTexture *swdata, const SDL_Rect *rect, void **pixels, int *pitch)
Definition: SDL_yuv_sw.c:302
int SDL_SW_QueryYUVTexturePixels(SDL_SW_YUVTexture *swdata, void **pixels, int *pitch)
Definition: SDL_yuv_sw.c:130
SDL_Surface * display
Definition: SDL_yuv_sw_c.h:40
A rectangle, with the origin at the upper left.
Definition: SDL_rect.h:64