SDL_yuv_sw.c File Reference

#include "SDL_config.h"
#include "SDL_assert.h"
#include "SDL_video.h"
#include "SDL_cpuinfo.h"
#include "SDL_yuv_sw_c.h"

Go to the source code of this file.

Functions
static void	Color16DitherYUY2Mod1X (int *colortab, Uint32 *rgb_2_pix, unsigned char *lum, unsigned char *cr, unsigned char *cb, unsigned char *out, int rows, int cols, int mod)
static void	Color16DitherYUY2Mod2X (int *colortab, Uint32 *rgb_2_pix, unsigned char *lum, unsigned char *cr, unsigned char *cb, unsigned char *out, int rows, int cols, int mod)
static void	Color16DitherYV12Mod1X (int *colortab, Uint32 *rgb_2_pix, unsigned char *lum, unsigned char *cr, unsigned char *cb, unsigned char *out, int rows, int cols, int mod)
static void	Color16DitherYV12Mod2X (int *colortab, Uint32 *rgb_2_pix, unsigned char *lum, unsigned char *cr, unsigned char *cb, unsigned char *out, int rows, int cols, int mod)
static void	Color24DitherYUY2Mod1X (int *colortab, Uint32 *rgb_2_pix, unsigned char *lum, unsigned char *cr, unsigned char *cb, unsigned char *out, int rows, int cols, int mod)
static void	Color24DitherYUY2Mod2X (int *colortab, Uint32 *rgb_2_pix, unsigned char *lum, unsigned char *cr, unsigned char *cb, unsigned char *out, int rows, int cols, int mod)
static void	Color24DitherYV12Mod1X (int *colortab, Uint32 *rgb_2_pix, unsigned char *lum, unsigned char *cr, unsigned char *cb, unsigned char *out, int rows, int cols, int mod)
static void	Color24DitherYV12Mod2X (int *colortab, Uint32 *rgb_2_pix, unsigned char *lum, unsigned char *cr, unsigned char *cb, unsigned char *out, int rows, int cols, int mod)
static void	Color32DitherYUY2Mod1X (int *colortab, Uint32 *rgb_2_pix, unsigned char *lum, unsigned char *cr, unsigned char *cb, unsigned char *out, int rows, int cols, int mod)
static void	Color32DitherYUY2Mod2X (int *colortab, Uint32 *rgb_2_pix, unsigned char *lum, unsigned char *cr, unsigned char *cb, unsigned char *out, int rows, int cols, int mod)
static void	Color32DitherYV12Mod1X (int *colortab, Uint32 *rgb_2_pix, unsigned char *lum, unsigned char *cr, unsigned char *cb, unsigned char *out, int rows, int cols, int mod)
static void	Color32DitherYV12Mod2X (int *colortab, Uint32 *rgb_2_pix, unsigned char *lum, unsigned char *cr, unsigned char *cb, unsigned char *out, int rows, int cols, int mod)
static int	free_bits_at_bottom (Uint32 a)
static int	number_of_bits_set (Uint32 a)
int	SDL_SW_CopyYUVToRGB (SDL_SW_YUVTexture *swdata, const SDL_Rect *srcrect, Uint32 target_format, int w, int h, void *pixels, int pitch)
SDL_SW_YUVTexture *	SDL_SW_CreateYUVTexture (Uint32 format, int w, int h)
void	SDL_SW_DestroyYUVTexture (SDL_SW_YUVTexture *swdata)
int	SDL_SW_LockYUVTexture (SDL_SW_YUVTexture *swdata, const SDL_Rect *rect, void **pixels, int *pitch)
int	SDL_SW_QueryYUVTexturePixels (SDL_SW_YUVTexture *swdata, void **pixels, int *pitch)
static int	SDL_SW_SetupYUVDisplay (SDL_SW_YUVTexture *swdata, Uint32 target_format)
void	SDL_SW_UnlockYUVTexture (SDL_SW_YUVTexture *swdata)
int	SDL_SW_UpdateYUVTexture (SDL_SW_YUVTexture *swdata, const SDL_Rect *rect, const void *pixels, int pitch)
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)

Function Documentation

static void Color16DitherYUY2Mod1X ( int *  colortab, Uint32 *  rgb_2_pix, unsigned char *  lum, unsigned char *  cr, unsigned char *  cb, unsigned char *  out, int  rows, int  cols, int  mod  )

static

Definition at line 566 of file SDL_yuv_sw.c.

Referenced by SDL_SW_SetupYUVDisplay().

static void Color16DitherYUY2Mod2X ( int *  colortab, Uint32 *  rgb_2_pix, unsigned char *  lum, unsigned char *  cr, unsigned char *  cb, unsigned char *  out, int  rows, int  cols, int  mod  )

static

Definition at line 710 of file SDL_yuv_sw.c.

Referenced by SDL_SW_SetupYUVDisplay().

static void Color16DitherYV12Mod1X ( int *  colortab, Uint32 *  rgb_2_pix, unsigned char *  lum, unsigned char *  cr, unsigned char *  cb, unsigned char *  out, int  rows, int  cols, int  mod  )

static

Definition at line 105 of file SDL_yuv_sw.c.

Referenced by SDL_SW_SetupYUVDisplay().

static void Color16DitherYV12Mod2X ( int *  colortab, Uint32 *  rgb_2_pix, unsigned char *  lum, unsigned char *  cr, unsigned char *  cb, unsigned char *  out, int  rows, int  cols, int  mod  )

static

Definition at line 326 of file SDL_yuv_sw.c.

Referenced by SDL_SW_SetupYUVDisplay().

static void Color24DitherYUY2Mod1X ( int *  colortab, Uint32 *  rgb_2_pix, unsigned char *  lum, unsigned char *  cr, unsigned char *  cb, unsigned char *  out, int  rows, int  cols, int  mod  )

static

Definition at line 612 of file SDL_yuv_sw.c.

Referenced by SDL_SW_SetupYUVDisplay().

static void Color24DitherYUY2Mod2X ( int *  colortab, Uint32 *  rgb_2_pix, unsigned char *  lum, unsigned char *  cr, unsigned char *  cb, unsigned char *  out, int  rows, int  cols, int  mod  )

static

Definition at line 756 of file SDL_yuv_sw.c.

Referenced by SDL_SW_SetupYUVDisplay().

static void Color24DitherYV12Mod1X ( int *  colortab, Uint32 *  rgb_2_pix, unsigned char *  lum, unsigned char *  cr, unsigned char *  cb, unsigned char *  out, int  rows, int  cols, int  mod  )

static

Definition at line 175 of file SDL_yuv_sw.c.

Referenced by SDL_SW_SetupYUVDisplay().

static void Color24DitherYV12Mod2X ( int *  colortab, Uint32 *  rgb_2_pix, unsigned char *  lum, unsigned char *  cr, unsigned char *  cb, unsigned char *  out, int  rows, int  cols, int  mod  )

static

Definition at line 399 of file SDL_yuv_sw.c.

Referenced by SDL_SW_SetupYUVDisplay().

static void Color32DitherYUY2Mod1X ( int *  colortab, Uint32 *  rgb_2_pix, unsigned char *  lum, unsigned char *  cr, unsigned char *  cb, unsigned char *  out, int  rows, int  cols, int  mod  )

static

Definition at line 662 of file SDL_yuv_sw.c.

Referenced by SDL_SW_SetupYUVDisplay().

static void Color32DitherYUY2Mod2X ( int *  colortab, Uint32 *  rgb_2_pix, unsigned char *  lum, unsigned char *  cr, unsigned char *  cb, unsigned char *  out, int  rows, int  cols, int  mod  )

static

Definition at line 812 of file SDL_yuv_sw.c.

Referenced by SDL_SW_SetupYUVDisplay().

static void Color32DitherYV12Mod1X ( int *  colortab, Uint32 *  rgb_2_pix, unsigned char *  lum, unsigned char *  cr, unsigned char *  cb, unsigned char *  out, int  rows, int  cols, int  mod  )

static

Definition at line 255 of file SDL_yuv_sw.c.

Referenced by SDL_SW_SetupYUVDisplay().

static void Color32DitherYV12Mod2X ( int *  colortab, Uint32 *  rgb_2_pix, unsigned char *  lum, unsigned char *  cr, unsigned char *  cb, unsigned char *  out, int  rows, int  cols, int  mod  )

static

Definition at line 493 of file SDL_yuv_sw.c.

Referenced by SDL_SW_SetupYUVDisplay().

static int free_bits_at_bottom ( Uint32  a )

static

Definition at line 878 of file SDL_yuv_sw.c.

Referenced by SDL_SW_SetupYUVDisplay().

static int number_of_bits_set ( Uint32  a )

static

Definition at line 864 of file SDL_yuv_sw.c.

Referenced by SDL_SW_SetupYUVDisplay().

int SDL_SW_CopyYUVToRGB	(	SDL_SW_YUVTexture *	swdata,
		const SDL_Rect *	srcrect,
		Uint32	target_format,
		int	w,
		int	h,
		void *	pixels,
		int	pitch
	)

Definition at line 1272 of file SDL_yuv_sw.c.

References SDL_SW_YUVTexture::colortab, SDL_SW_YUVTexture::display, SDL_SW_YUVTexture::Display1X, SDL_SW_YUVTexture::Display2X, SDL_SW_YUVTexture::format, SDL_SW_YUVTexture::h, SDL_Rect::h, SDL_Surface::h, NULL, SDL_Surface::pitch, SDL_Surface::pixels, SDL_SW_YUVTexture::planes, SDL_SW_YUVTexture::rgb_2_pix, SDL_BYTESPERPIXEL, SDL_CreateRGBSurface(), SDL_CreateRGBSurfaceFrom(), SDL_PIXELFORMAT_IYUV, SDL_PIXELFORMAT_UYVY, SDL_PIXELFORMAT_YUY2, SDL_PIXELFORMAT_YV12, SDL_PIXELFORMAT_YVYU, SDL_PixelFormatEnumToMasks(), SDL_SetError(), SDL_SoftStretch(), SDL_SW_SetupYUVDisplay(), SDL_SW_YUVTexture::stretch, SDL_SW_YUVTexture::target_format, SDL_SW_YUVTexture::w, SDL_Rect::w, SDL_Surface::w, SDL_Rect::x, and SDL_Rect::y.

Referenced by SDL_UnlockTextureYUV(), SDL_UpdateTextureYUV(), and SDL_UpdateTextureYUVPlanar().

SDL_SW_YUVTexture* SDL_SW_CreateYUVTexture	(	Uint32	format,
		int	w,
		int	h
	)

Definition at line 1021 of file SDL_yuv_sw.c.

References SDL_SW_YUVTexture::colortab, SDL_SW_YUVTexture::format, SDL_SW_YUVTexture::h, i, int, NULL, SDL_SW_YUVTexture::pitches, SDL_SW_YUVTexture::pixels, SDL_SW_YUVTexture::planes, SDL_SW_YUVTexture::rgb_2_pix, SDL_assert, SDL_calloc(), SDL_malloc(), SDL_OutOfMemory, SDL_PIXELFORMAT_IYUV, SDL_PIXELFORMAT_UNKNOWN, SDL_PIXELFORMAT_UYVY, SDL_PIXELFORMAT_YUY2, SDL_PIXELFORMAT_YV12, SDL_PIXELFORMAT_YVYU, SDL_SetError(), SDL_SW_DestroyYUVTexture(), SDL_SW_YUVTexture::target_format, and SDL_SW_YUVTexture::w.

Referenced by SDL_CreateTexture().

void SDL_SW_DestroyYUVTexture

(

SDL_SW_YUVTexture *

swdata

)

Definition at line 1387 of file SDL_yuv_sw.c.

References SDL_SW_YUVTexture::colortab, SDL_SW_YUVTexture::display, SDL_SW_YUVTexture::pixels, SDL_SW_YUVTexture::rgb_2_pix, SDL_free(), SDL_FreeSurface(), and SDL_SW_YUVTexture::stretch.

Referenced by SDL_DestroyTexture(), and SDL_SW_CreateYUVTexture().

int SDL_SW_LockYUVTexture	(	SDL_SW_YUVTexture *	swdata,
		const SDL_Rect *	rect,
		void **	pixels,
		int *	pitch
	)

Definition at line 1242 of file SDL_yuv_sw.c.

References SDL_SW_YUVTexture::format, SDL_SW_YUVTexture::h, SDL_Rect::h, SDL_SW_YUVTexture::pitches, SDL_SW_YUVTexture::planes, SDL_PIXELFORMAT_IYUV, SDL_PIXELFORMAT_YV12, SDL_SetError(), SDL_SW_YUVTexture::w, SDL_Rect::w, SDL_Rect::x, and SDL_Rect::y.

Referenced by SDL_LockTextureYUV().

int SDL_SW_QueryYUVTexturePixels	(	SDL_SW_YUVTexture *	swdata,
		void **	pixels,
		int *	pitch
	)

Definition at line 1105 of file SDL_yuv_sw.c.

References SDL_SW_YUVTexture::pitches, and SDL_SW_YUVTexture::planes.

static int SDL_SW_SetupYUVDisplay ( SDL_SW_YUVTexture *  swdata, Uint32  target_format  )

static

Definition at line 889 of file SDL_yuv_sw.c.

References Color16DitherYUY2Mod1X(), Color16DitherYUY2Mod2X(), Color16DitherYV12Mod1X(), Color16DitherYV12Mod2X(), Color24DitherYUY2Mod1X(), Color24DitherYUY2Mod2X(), Color24DitherYV12Mod1X(), Color24DitherYV12Mod2X(), Color32DitherYUY2Mod1X(), Color32DitherYUY2Mod2X(), Color32DitherYV12Mod1X(), Color32DitherYV12Mod2X(), SDL_SW_YUVTexture::display, SDL_SW_YUVTexture::Display1X, SDL_SW_YUVTexture::Display2X, SDL_SW_YUVTexture::format, free_bits_at_bottom(), i, NULL, number_of_bits_set(), SDL_SW_YUVTexture::rgb_2_pix, SDL_BYTESPERPIXEL, SDL_FreeSurface(), SDL_HasMMX(), SDL_PIXELFORMAT_IYUV, SDL_PIXELFORMAT_UYVY, SDL_PIXELFORMAT_YUY2, SDL_PIXELFORMAT_YV12, SDL_PIXELFORMAT_YVYU, SDL_PixelFormatEnumToMasks(), SDL_SetError(), SDL_SW_YUVTexture::target_format, and SDL_SW_YUVTexture::w.

Referenced by SDL_SW_CopyYUVToRGB().

void SDL_SW_UnlockYUVTexture

(

SDL_SW_YUVTexture *

swdata

)

Definition at line 1267 of file SDL_yuv_sw.c.

int SDL_SW_UpdateYUVTexture	(	SDL_SW_YUVTexture *	swdata,
		const SDL_Rect *	rect,
		const void *	pixels,
		int	pitch
	)

Definition at line 1114 of file SDL_yuv_sw.c.

References for(), SDL_SW_YUVTexture::format, SDL_SW_YUVTexture::h, SDL_Rect::h, SDL_SW_YUVTexture::pitches, SDL_SW_YUVTexture::pixels, SDL_SW_YUVTexture::planes, SDL_memcpy(), SDL_PIXELFORMAT_IYUV, SDL_PIXELFORMAT_UYVY, SDL_PIXELFORMAT_YUY2, SDL_PIXELFORMAT_YV12, SDL_PIXELFORMAT_YVYU, SDL_SW_YUVTexture::w, SDL_Rect::w, SDL_Rect::x, and SDL_Rect::y.

Referenced by SDL_UpdateTextureYUV().

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 at line 1188 of file SDL_yuv_sw.c.

References SDL_SW_YUVTexture::format, SDL_SW_YUVTexture::h, SDL_Rect::h, SDL_SW_YUVTexture::pixels, SDL_memcpy(), SDL_PIXELFORMAT_IYUV, SDL_PIXELFORMAT_YV12, SDL_SW_YUVTexture::w, SDL_Rect::w, SDL_Rect::x, and SDL_Rect::y.

Referenced by SDL_UpdateTextureYUVPlanar().