[sdl_omap.git] / test / testoverlay2.c

/********************************************************************************
 *                                                                              *
 * Test of the overlay used for moved pictures, test more closed to real life.  *
 * Running trojan moose :) Coded by Mike Gorchak.                               *
 *                                                                              *
 ********************************************************************************/

#include <stdlib.h>
#include <stdio.h>
#include <string.h>

#include "SDL.h"

#define MOOSEPIC_W 64
#define MOOSEPIC_H 88

#define MOOSEFRAME_SIZE (MOOSEPIC_W * MOOSEPIC_H)
#define MOOSEFRAMES_COUNT 10

SDL_Color MooseColors[84]={
    { 49,  49,  49}, { 66,  24,   0}, { 66,  33,   0}, { 66,  66,  66},
    { 66, 115,  49}, { 74,  33,   0}, { 74,  41,  16}, { 82,  33,   8},
    { 82,  41,   8}, { 82,  49,  16}, { 82,  82,  82}, { 90,  41,   8},
    { 90,  41,  16}, { 90,  57,  24}, { 99,  49,  16}, { 99,  66,  24},
    { 99,  66,  33}, { 99,  74,  33}, {107,  57,  24}, {107,  82,  41},
    {115,  57,  33}, {115,  66,  33}, {115,  66,  41}, {115,  74,   0},
    {115,  90,  49}, {115, 115, 115}, {123,  82,   0}, {123,  99,  57},
    {132,  66,  41}, {132,  74,  41}, {132,  90,   8}, {132,  99,  33},
    {132,  99,  66}, {132, 107,  66}, {140,  74,  49}, {140,  99,  16},
    {140, 107,  74}, {140, 115,  74}, {148, 107,  24}, {148, 115,  82},
    {148, 123,  74}, {148, 123,  90}, {156, 115,  33}, {156, 115,  90},
    {156, 123,  82}, {156, 132,  82}, {156, 132,  99}, {156, 156, 156},
    {165, 123,  49}, {165, 123,  90}, {165, 132,  82}, {165, 132,  90},
    {165, 132,  99}, {165, 140,  90}, {173, 132,  57}, {173, 132,  99},
    {173, 140, 107}, {173, 140, 115}, {173, 148,  99}, {173, 173, 173},
    {181, 140,  74}, {181, 148, 115}, {181, 148, 123}, {181, 156, 107},
    {189, 148, 123}, {189, 156,  82}, {189, 156, 123}, {189, 156, 132},
    {189, 189, 189}, {198, 156, 123}, {198, 165, 132}, {206, 165,  99},
    {206, 165, 132}, {206, 173, 140}, {206, 206, 206}, {214, 173, 115},
    {214, 173, 140}, {222, 181, 148}, {222, 189, 132}, {222, 189, 156},
    {222, 222, 222}, {231, 198, 165}, {231, 231, 231}, {239, 206, 173}
};


/* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
static void quit(int rc)
{
	SDL_Quit();
	exit(rc);
}

/* All RGB2YUV conversion code and some other parts of code has been taken from testoverlay.c */

/* NOTE: These RGB conversion functions are not intended for speed,
         only as examples.
*/

void RGBtoYUV(Uint8 *rgb, int *yuv, int monochrome, int luminance)
{
    if (monochrome)
    {
#if 1 /* these are the two formulas that I found on the FourCC site... */
        yuv[0] = 0.299*rgb[0] + 0.587*rgb[1] + 0.114*rgb[2];
        yuv[1] = 128;
        yuv[2] = 128;
#else
        yuv[0] = (0.257 * rgb[0]) + (0.504 * rgb[1]) + (0.098 * rgb[2]) + 16;
        yuv[1] = 128;
        yuv[2] = 128;
#endif
    }
    else
    {
#if 1 /* these are the two formulas that I found on the FourCC site... */
        yuv[0] = 0.299*rgb[0] + 0.587*rgb[1] + 0.114*rgb[2];
        yuv[1] = (rgb[2]-yuv[0])*0.565 + 128;
        yuv[2] = (rgb[0]-yuv[0])*0.713 + 128;
#else
        yuv[0] = (0.257 * rgb[0]) + (0.504 * rgb[1]) + (0.098 * rgb[2]) + 16;
        yuv[1] = 128 - (0.148 * rgb[0]) - (0.291 * rgb[1]) + (0.439 * rgb[2]);
        yuv[2] = 128 + (0.439 * rgb[0]) - (0.368 * rgb[1]) - (0.071 * rgb[2]);
#endif
    }

    if (luminance!=100)
    {
        yuv[0]=yuv[0]*luminance/100;
        if (yuv[0]>255)
            yuv[0]=255;
    }
}

void ConvertRGBtoYV12(SDL_Surface *s, SDL_Overlay *o, int monochrome, int luminance)
{
	int x,y;
	int yuv[3];
	Uint8 *p,*op[3];

	SDL_LockSurface(s);
	SDL_LockYUVOverlay(o);

	/* Convert */
	for(y=0; y<s->h && y<o->h; y++)
	{
		p=((Uint8 *) s->pixels)+s->pitch*y;
		op[0]=o->pixels[0]+o->pitches[0]*y;
		op[1]=o->pixels[1]+o->pitches[1]*(y/2);
		op[2]=o->pixels[2]+o->pitches[2]*(y/2);
		for(x=0; x<s->w && x<o->w; x++)
		{
			RGBtoYUV(p, yuv, monochrome, luminance);
			*(op[0]++)=yuv[0];
			if(x%2==0 && y%2==0)
			{
				*(op[1]++)=yuv[2];
				*(op[2]++)=yuv[1];
			}
			p+=s->format->BytesPerPixel;
		}
	}

	SDL_UnlockYUVOverlay(o);
	SDL_UnlockSurface(s);
}

void ConvertRGBtoIYUV(SDL_Surface *s, SDL_Overlay *o, int monochrome, int luminance)
{
	int x,y;
	int yuv[3];
	Uint8 *p,*op[3];

	SDL_LockSurface(s);
	SDL_LockYUVOverlay(o);

	/* Convert */
	for(y=0; y<s->h && y<o->h; y++)
	{
		p=((Uint8 *) s->pixels)+s->pitch*y;
		op[0]=o->pixels[0]+o->pitches[0]*y;
		op[1]=o->pixels[1]+o->pitches[1]*(y/2);
		op[2]=o->pixels[2]+o->pitches[2]*(y/2);
		for(x=0; x<s->w && x<o->w; x++)
		{
			RGBtoYUV(p,yuv, monochrome, luminance);
			*(op[0]++)=yuv[0];
			if(x%2==0 && y%2==0)
			{
				*(op[1]++)=yuv[1];
				*(op[2]++)=yuv[2];
			}
			p+=s->format->BytesPerPixel;
		}
	}

	SDL_UnlockYUVOverlay(o);
	SDL_UnlockSurface(s);
}

void ConvertRGBtoUYVY(SDL_Surface *s, SDL_Overlay *o, int monochrome, int luminance)
{
	int x,y;
	int yuv[3];
	Uint8 *p,*op;

	SDL_LockSurface(s);
	SDL_LockYUVOverlay(o);

	for(y=0; y<s->h && y<o->h; y++)
	{
		p=((Uint8 *) s->pixels)+s->pitch*y;
		op=o->pixels[0]+o->pitches[0]*y;
		for(x=0; x<s->w && x<o->w; x++)
		{
			RGBtoYUV(p, yuv, monochrome, luminance);
			if(x%2==0)
			{
				*(op++)=yuv[1];
				*(op++)=yuv[0];
				*(op++)=yuv[2];
			}
			else
				*(op++)=yuv[0];

			p+=s->format->BytesPerPixel;
		}
	}

	SDL_UnlockYUVOverlay(o);
	SDL_UnlockSurface(s);
}

void ConvertRGBtoYVYU(SDL_Surface *s, SDL_Overlay *o, int monochrome, int luminance)
{
	int x,y;
	int yuv[3];
	Uint8 *p,*op;

	SDL_LockSurface(s);
	SDL_LockYUVOverlay(o);

	for(y=0; y<s->h && y<o->h; y++)
	{
		p=((Uint8 *) s->pixels)+s->pitch*y;
		op=o->pixels[0]+o->pitches[0]*y;
		for(x=0; x<s->w && x<o->w; x++)
		{
			RGBtoYUV(p,yuv, monochrome, luminance);
			if(x%2==0)
			{
				*(op++)=yuv[0];
				*(op++)=yuv[2];
				op[1]=yuv[1];
			}
			else
			{
				*op=yuv[0];
				op+=2;
			}

			p+=s->format->BytesPerPixel;
		}
	}

	SDL_UnlockYUVOverlay(o);
	SDL_UnlockSurface(s);
}

void ConvertRGBtoYUY2(SDL_Surface *s, SDL_Overlay *o, int monochrome, int luminance)
{
	int x,y;
	int yuv[3];
	Uint8 *p,*op;

	SDL_LockSurface(s);
	SDL_LockYUVOverlay(o);
        
	for(y=0; y<s->h && y<o->h; y++)
	{
		p=((Uint8 *) s->pixels)+s->pitch*y;
		op=o->pixels[0]+o->pitches[0]*y;
		for(x=0; x<s->w && x<o->w; x++)
		{
			RGBtoYUV(p,yuv, monochrome, luminance);
			if(x%2==0)
			{
				*(op++)=yuv[0];
				*(op++)=yuv[1];
				op[1]=yuv[2];
			}
			else
			{
				*op=yuv[0];
				op+=2;
			}

			p+=s->format->BytesPerPixel;
		}
	}

	SDL_UnlockYUVOverlay(o);
	SDL_UnlockSurface(s);
}

static void PrintUsage(char *argv0)
{
    fprintf(stderr, "Usage: %s [arg] [arg] [arg] ...\n", argv0);
    fprintf(stderr, "\n");
    fprintf(stderr, "Where 'arg' is any of the following options:\n");
    fprintf(stderr, "\n");
    fprintf(stderr, "	-fps <frames per second>\n");
    fprintf(stderr, "	-format <fmt> (one of the: YV12, IYUV, YUY2, UYVY, YVYU)\n");
    fprintf(stderr, "	-scale <scale factor> (initial scale of the overlay)\n");
    fprintf(stderr, "	-help (shows this help)\n");
    fprintf(stderr, "\n");
    fprintf(stderr, "Press ESC to exit, or SPACE to freeze the movie while application running.\n");
    fprintf(stderr, "\n");
}

int main(int argc, char **argv)
{
    Uint8* RawMooseData;
    SDL_RWops* handle;
    SDL_Surface* screen;
    SDL_Surface* MooseFrame[MOOSEFRAMES_COUNT];
    SDL_Overlay* overlay;
    SDL_Rect overlayrect;
    SDL_Event event;
    Uint32 lastftick;
    int paused=0;
    int resized=0;
    int i;
    int fps=12;
    int fpsdelay;
    int overlay_format=SDL_YUY2_OVERLAY;
    int scale=5;

    if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE) < 0)
    {
        fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError());
        return 3;
    }

    while ( argc > 1 )
    {
        if (strcmp(argv[1], "-fps")== 0)
        {
            if (argv[2])
            {
                fps = atoi(argv[2]);
                if (fps==0)
                {
                    fprintf(stderr, "The -fps option requires an argument [from 1 to 1000], default is 12.\n");
                    quit(10);
                }
                if ((fps<0) || (fps>1000))
                {
                    fprintf(stderr, "The -fps option must be in range from 1 to 1000, default is 12.\n");
                    quit(10);
                }
                argv += 2;
                argc -= 2;
            }
            else
            {
                fprintf(stderr, "The -fps option requires an argument [from 1 to 1000], default is 12.\n");
                quit(10);
            }
        } else
        if (strcmp(argv[1], "-format") == 0)
        {
            if (argv[2])
            {
                if (!strcmp(argv[2],"YV12"))
                    overlay_format = SDL_YV12_OVERLAY;
                else if(!strcmp(argv[2],"IYUV"))
                    overlay_format = SDL_IYUV_OVERLAY;
                else if(!strcmp(argv[2],"YUY2"))
                    overlay_format = SDL_YUY2_OVERLAY;
                else if(!strcmp(argv[2],"UYVY"))
                    overlay_format = SDL_UYVY_OVERLAY;
                else if(!strcmp(argv[2],"YVYU"))
                    overlay_format = SDL_YVYU_OVERLAY;
                else
                {
                    fprintf(stderr, "The -format option %s is not recognized, see help for info.\n", argv[2]);
                    quit(10);
                }
                argv += 2;
                argc -= 2;
            }
            else
            {
                fprintf(stderr, "The -format option requires an argument, default is YUY2.\n");
                quit(10);
            }
        } else
        if (strcmp(argv[1], "-scale") == 0)
        {
            if (argv[2])
            {
                scale = atoi(argv[2]);
                if (scale==0)
                {
                    fprintf(stderr, "The -scale option requires an argument [from 1 to 50], default is 5.\n");
                    quit(10);
                }
                if ((scale<0) || (scale>50))
                {
                    fprintf(stderr, "The -scale option must be in range from 1 to 50, default is 5.\n");
                    quit(10);
                }
                argv += 2;
                argc -= 2;
            }
            else
            {
                fprintf(stderr, "The -fps option requires an argument [from 1 to 1000], default is 12.\n");
                quit(10);
            }
        } else
        if ((strcmp(argv[1], "-help") == 0 ) || (strcmp(argv[1], "-h") == 0))
        {
            PrintUsage(argv[0]);
            quit(0);
        } else
        {
            fprintf(stderr, "Unrecognized option: %s.\n", argv[1]);
            quit(10);
        }
        break;
    }
   
    RawMooseData=(Uint8*)malloc(MOOSEFRAME_SIZE * MOOSEFRAMES_COUNT);
    if (RawMooseData==NULL)
    {
        fprintf(stderr, "Can't allocate memory for movie !\n");
        free(RawMooseData);
        quit(1);
    }

    /* load the trojan moose images */
    handle=SDL_RWFromFile("moose.dat", "rb");
    if (handle==NULL)
    {
        fprintf(stderr, "Can't find the file moose.dat !\n");
        free(RawMooseData);
        quit(2);
    }
   
    SDL_RWread(handle, RawMooseData, MOOSEFRAME_SIZE, MOOSEFRAMES_COUNT);

    SDL_RWclose(handle);

    /* Set video mode */
    if ( (screen=SDL_SetVideoMode(MOOSEPIC_W*scale, MOOSEPIC_H*scale, 0, SDL_RESIZABLE | SDL_SWSURFACE)) == NULL )
    {
        fprintf(stderr, "Couldn't set video mode: %s\n", SDL_GetError());
        free(RawMooseData);
        quit(4);
    }

    /* Set the window manager title bar */
    SDL_WM_SetCaption("SDL test overlay: running moose", "testoverlay2");

    for (i=0; i<MOOSEFRAMES_COUNT; i++)
    {
        MooseFrame[i]=SDL_CreateRGBSurfaceFrom(RawMooseData+i*MOOSEFRAME_SIZE, MOOSEPIC_W,
                                               MOOSEPIC_H, 8, MOOSEPIC_W, 0, 0, 0, 0);
        if (MooseFrame[i]==NULL)
        {
            fprintf(stderr, "Couldn't create SDL_Surfaces:%s\n", SDL_GetError());
            free(RawMooseData);
            quit(5);
        }
        SDL_SetColors(MooseFrame[i], MooseColors, 0, 84);

	{
		SDL_Surface *newsurf;
		SDL_PixelFormat format;

		format.palette=NULL;
		format.BitsPerPixel=32;
		format.BytesPerPixel=4;
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
		format.Rshift=0;
		format.Gshift=8;
		format.Bshift=16;
#else
		format.Rshift=24;
		format.Gshift=16;
		format.Bshift=8;
#endif
		format.Ashift=0;
		format.Rmask=0xff<<format.Rshift;
		format.Gmask=0xff<<format.Gshift;
		format.Bmask=0xff<<format.Bshift;
		format.Amask=0;
		format.Rloss=0;
		format.Gloss=0;
		format.Bloss=0;
		format.Aloss=8;
		format.colorkey=0;
		format.alpha=0;

		newsurf=SDL_ConvertSurface(MooseFrame[i], &format, SDL_SWSURFACE);
		if(!newsurf)
		{
                    fprintf(stderr, "Couldn't convert picture to 32bits RGB: %s\n", SDL_GetError());
                    quit(6);
		}
		SDL_FreeSurface(MooseFrame[i]);
		MooseFrame[i]=newsurf;
	}
    }

    free(RawMooseData);

    overlay=SDL_CreateYUVOverlay(MOOSEPIC_W, MOOSEPIC_H, overlay_format, screen);
    if (!overlay)
    {
        fprintf(stderr, "Couldn't create overlay: %s\n", SDL_GetError());
        quit(7);
    }

    printf("Created %dx%dx%d %s %s overlay\n",overlay->w,overlay->h,overlay->planes,
           overlay->hw_overlay?"hardware":"software",
           overlay->format==SDL_YV12_OVERLAY?"YV12":
           overlay->format==SDL_IYUV_OVERLAY?"IYUV":
           overlay->format==SDL_YUY2_OVERLAY?"YUY2":
           overlay->format==SDL_UYVY_OVERLAY?"UYVY":
           overlay->format==SDL_YVYU_OVERLAY?"YVYU":
           "Unknown");

    for(i=0; i<overlay->planes; i++)
    {
        printf("  plane %d: pitch=%d\n", i, overlay->pitches[i]);
    }

    overlayrect.x=0;
    overlayrect.y=0;
    overlayrect.w=MOOSEPIC_W*scale;
    overlayrect.h=MOOSEPIC_H*scale;

    /* set the start frame */
    i=0;
    fpsdelay=1000/fps;

    /* Ignore key up events, they don't even get filtered */
    SDL_EventState(SDL_KEYUP, SDL_IGNORE);

    lastftick=SDL_GetTicks();

    /* Loop, waiting for QUIT or RESIZE */
    while (1)
    {
        if (SDL_PollEvent(&event))
        {
            switch (event.type)
            {
                case SDL_VIDEORESIZE:
                     screen=SDL_SetVideoMode(event.resize.w, event.resize.h, 0, SDL_RESIZABLE | SDL_SWSURFACE);
                     overlayrect.w=event.resize.w;
                     overlayrect.h=event.resize.h;
                     if (paused)
                     {
                         resized=1;
                     }
                     break;
                case SDL_MOUSEBUTTONDOWN:
                     overlayrect.x = event.button.x - overlayrect.w/2;
                     overlayrect.y = event.button.y - overlayrect.h/2;
                     break;
                case SDL_KEYDOWN:
                     if (event.key.keysym.sym == SDLK_SPACE)
                     {
                         paused=!paused;
                         break;
                     }
                     if (event.key.keysym.sym != SDLK_ESCAPE)
                     {
                         break;
                     }
                case SDL_QUIT:
                     SDL_FreeYUVOverlay(overlay);
                     for (i=0; i<MOOSEFRAMES_COUNT; i++)
                     {
                         SDL_FreeSurface(MooseFrame[i]);
                     }
                     quit(0);
            }
        }

        if ((!paused)||(resized))
        {
            if (((SDL_GetTicks()-lastftick)>fpsdelay)||(resized))
            {
                lastftick=SDL_GetTicks();

                switch (overlay_format)
                {
                    case SDL_YUY2_OVERLAY:
                         ConvertRGBtoYUY2(MooseFrame[i], overlay, 0, 100);
                         break;
                    case SDL_YV12_OVERLAY:
                         ConvertRGBtoYV12(MooseFrame[i], overlay, 0, 100);
                         break;
                    case SDL_UYVY_OVERLAY:
                         ConvertRGBtoUYVY(MooseFrame[i], overlay, 0, 100);
                         break;
                    case SDL_YVYU_OVERLAY:
                         ConvertRGBtoYVYU(MooseFrame[i], overlay, 0, 100);
                         break;
                    case SDL_IYUV_OVERLAY:
                         ConvertRGBtoIYUV(MooseFrame[i], overlay, 0, 100);
                         break;
                }

                SDL_DisplayYUVOverlay(overlay, &overlayrect);
                if (!resized)
                {
                    i++;
                    if (i==10)
                    {
                        i=0;
                    }
                }
                else
                {
                    resized=0;
                }
            }
        }
        /* kind of timeslice to OS */
        SDL_Delay(1);
    }

	SDL_Quit();
    return 0;
}
Commit	Line	Data
e14743d1	1	/********************************************************************************
	2	* *
	3	* Test of the overlay used for moved pictures, test more closed to real life. *
	4	* Running trojan moose :) Coded by Mike Gorchak. *
	5	* *
	6	********************************************************************************/
	7
	8	#include <stdlib.h>
	9	#include <stdio.h>
	10	#include <string.h>
	11
	12	#include "SDL.h"
	13
	14	#define MOOSEPIC_W 64
	15	#define MOOSEPIC_H 88
	16
	17	#define MOOSEFRAME_SIZE (MOOSEPIC_W * MOOSEPIC_H)
	18	#define MOOSEFRAMES_COUNT 10
	19
	20	SDL_Color MooseColors[84]={
	21	{ 49, 49, 49}, { 66, 24, 0}, { 66, 33, 0}, { 66, 66, 66},
	22	{ 66, 115, 49}, { 74, 33, 0}, { 74, 41, 16}, { 82, 33, 8},
	23	{ 82, 41, 8}, { 82, 49, 16}, { 82, 82, 82}, { 90, 41, 8},
	24	{ 90, 41, 16}, { 90, 57, 24}, { 99, 49, 16}, { 99, 66, 24},
	25	{ 99, 66, 33}, { 99, 74, 33}, {107, 57, 24}, {107, 82, 41},
	26	{115, 57, 33}, {115, 66, 33}, {115, 66, 41}, {115, 74, 0},
	27	{115, 90, 49}, {115, 115, 115}, {123, 82, 0}, {123, 99, 57},
	28	{132, 66, 41}, {132, 74, 41}, {132, 90, 8}, {132, 99, 33},
	29	{132, 99, 66}, {132, 107, 66}, {140, 74, 49}, {140, 99, 16},
	30	{140, 107, 74}, {140, 115, 74}, {148, 107, 24}, {148, 115, 82},
	31	{148, 123, 74}, {148, 123, 90}, {156, 115, 33}, {156, 115, 90},
	32	{156, 123, 82}, {156, 132, 82}, {156, 132, 99}, {156, 156, 156},
	33	{165, 123, 49}, {165, 123, 90}, {165, 132, 82}, {165, 132, 90},
	34	{165, 132, 99}, {165, 140, 90}, {173, 132, 57}, {173, 132, 99},
	35	{173, 140, 107}, {173, 140, 115}, {173, 148, 99}, {173, 173, 173},
	36	{181, 140, 74}, {181, 148, 115}, {181, 148, 123}, {181, 156, 107},
	37	{189, 148, 123}, {189, 156, 82}, {189, 156, 123}, {189, 156, 132},
	38	{189, 189, 189}, {198, 156, 123}, {198, 165, 132}, {206, 165, 99},
	39	{206, 165, 132}, {206, 173, 140}, {206, 206, 206}, {214, 173, 115},
	40	{214, 173, 140}, {222, 181, 148}, {222, 189, 132}, {222, 189, 156},
	41	{222, 222, 222}, {231, 198, 165}, {231, 231, 231}, {239, 206, 173}
	42	};
	43
	44
	45	/* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
	46	static void quit(int rc)
	47	{
	48	SDL_Quit();
	49	exit(rc);
	50	}
	51
	52	/* All RGB2YUV conversion code and some other parts of code has been taken from testoverlay.c */
	53
	54	/* NOTE: These RGB conversion functions are not intended for speed,
	55	only as examples.
	56	*/
	57
	58	void RGBtoYUV(Uint8 rgb, int yuv, int monochrome, int luminance)
	59	{
	60	if (monochrome)
	61	{
	62	#if 1 /* these are the two formulas that I found on the FourCC site... */
	63	yuv[0] = 0.299rgb[0] + 0.587rgb[1] + 0.114*rgb[2];
	64	yuv[1] = 128;
65	yuv[2] = 128;
66	#else
67	yuv[0] = (0.257 * rgb[0]) + (0.504 * rgb[1]) + (0.098 * rgb[2]) + 16;
68	yuv[1] = 128;
69	yuv[2] = 128;
70	#endif
71	}
72	else
73	{
74	#if 1 /* these are the two formulas that I found on the FourCC site... */
75	yuv[0] = 0.299rgb[0] + 0.587rgb[1] + 0.114*rgb[2];
76	yuv[1] = (rgb[2]-yuv[0])*0.565 + 128;
77	yuv[2] = (rgb[0]-yuv[0])*0.713 + 128;
78	#else
79	yuv[0] = (0.257 * rgb[0]) + (0.504 * rgb[1]) + (0.098 * rgb[2]) + 16;
80	yuv[1] = 128 - (0.148 * rgb[0]) - (0.291 * rgb[1]) + (0.439 * rgb[2]);
81	yuv[2] = 128 + (0.439 * rgb[0]) - (0.368 * rgb[1]) - (0.071 * rgb[2]);
82	#endif
83	}
84
85	if (luminance!=100)
86	{
87	yuv[0]=yuv[0]*luminance/100;
88	if (yuv[0]>255)
89	yuv[0]=255;
90	}
91	}
92
93	void ConvertRGBtoYV12(SDL_Surface s, SDL_Overlay o, int monochrome, int luminance)
94	{
95	int x,y;
96	int yuv[3];
97	Uint8 p,op[3];
98
99	SDL_LockSurface(s);
100	SDL_LockYUVOverlay(o);
101
102	/* Convert */
103	for(y=0; y<s->h && y<o->h; y++)
104	{
105	p=((Uint8 ) s->pixels)+s->pitchy;
106	op[0]=o->pixels[0]+o->pitches[0]*y;
107	op[1]=o->pixels[1]+o->pitches[1]*(y/2);
108	op[2]=o->pixels[2]+o->pitches[2]*(y/2);
109	for(x=0; x<s->w && x<o->w; x++)
110	{
111	RGBtoYUV(p, yuv, monochrome, luminance);
112	*(op[0]++)=yuv[0];
113	if(x%2==0 && y%2==0)
114	{
115	*(op[1]++)=yuv[2];
116	*(op[2]++)=yuv[1];
117	}
118	p+=s->format->BytesPerPixel;
119	}
120	}
121
122	SDL_UnlockYUVOverlay(o);
123	SDL_UnlockSurface(s);
124	}
125
126	void ConvertRGBtoIYUV(SDL_Surface s, SDL_Overlay o, int monochrome, int luminance)
127	{
128	int x,y;
129	int yuv[3];
130	Uint8 p,op[3];
131
132	SDL_LockSurface(s);
133	SDL_LockYUVOverlay(o);
134
135	/* Convert */
136	for(y=0; y<s->h && y<o->h; y++)
137	{
138	p=((Uint8 ) s->pixels)+s->pitchy;
139	op[0]=o->pixels[0]+o->pitches[0]*y;
140	op[1]=o->pixels[1]+o->pitches[1]*(y/2);
141	op[2]=o->pixels[2]+o->pitches[2]*(y/2);
142	for(x=0; x<s->w && x<o->w; x++)
143	{
144	RGBtoYUV(p,yuv, monochrome, luminance);
145	*(op[0]++)=yuv[0];
146	if(x%2==0 && y%2==0)
147	{
148	*(op[1]++)=yuv[1];
149	*(op[2]++)=yuv[2];
150	}
151	p+=s->format->BytesPerPixel;
152	}
153	}
154
155	SDL_UnlockYUVOverlay(o);
156	SDL_UnlockSurface(s);
157	}
158
159	void ConvertRGBtoUYVY(SDL_Surface s, SDL_Overlay o, int monochrome, int luminance)
160	{
161	int x,y;
162	int yuv[3];
163	Uint8 p,op;
164
165	SDL_LockSurface(s);
166	SDL_LockYUVOverlay(o);
167
168	for(y=0; y<s->h && y<o->h; y++)
169	{
170	p=((Uint8 ) s->pixels)+s->pitchy;
171	op=o->pixels[0]+o->pitches[0]*y;
172	for(x=0; x<s->w && x<o->w; x++)
173	{
174	RGBtoYUV(p, yuv, monochrome, luminance);
175	if(x%2==0)
176	{
177	*(op++)=yuv[1];
178	*(op++)=yuv[0];
179	*(op++)=yuv[2];
180	}
181	else
182	*(op++)=yuv[0];
183
184	p+=s->format->BytesPerPixel;
185	}
186	}
187
188	SDL_UnlockYUVOverlay(o);
189	SDL_UnlockSurface(s);
190	}
191
192	void ConvertRGBtoYVYU(SDL_Surface s, SDL_Overlay o, int monochrome, int luminance)
193	{
194	int x,y;
195	int yuv[3];
196	Uint8 p,op;
197
198	SDL_LockSurface(s);
199	SDL_LockYUVOverlay(o);
200
201	for(y=0; y<s->h && y<o->h; y++)
202	{
203	p=((Uint8 ) s->pixels)+s->pitchy;
204	op=o->pixels[0]+o->pitches[0]*y;
205	for(x=0; x<s->w && x<o->w; x++)
206	{
207	RGBtoYUV(p,yuv, monochrome, luminance);
208	if(x%2==0)
209	{
210	*(op++)=yuv[0];
211	*(op++)=yuv[2];
212	op[1]=yuv[1];
213	}
214	else
215	{
216	*op=yuv[0];
217	op+=2;
218	}
219
220	p+=s->format->BytesPerPixel;
221	}
222	}
223
224	SDL_UnlockYUVOverlay(o);
225	SDL_UnlockSurface(s);
226	}
227
228	void ConvertRGBtoYUY2(SDL_Surface s, SDL_Overlay o, int monochrome, int luminance)
229	{
230	int x,y;
231	int yuv[3];
232	Uint8 p,op;
233
234	SDL_LockSurface(s);
235	SDL_LockYUVOverlay(o);
236
237	for(y=0; y<s->h && y<o->h; y++)
238	{
239	p=((Uint8 ) s->pixels)+s->pitchy;
240	op=o->pixels[0]+o->pitches[0]*y;
241	for(x=0; x<s->w && x<o->w; x++)
242	{
243	RGBtoYUV(p,yuv, monochrome, luminance);
244	if(x%2==0)
245	{
246	*(op++)=yuv[0];
247	*(op++)=yuv[1];
248	op[1]=yuv[2];
249	}
250	else
251	{
252	*op=yuv[0];
253	op+=2;
254	}
255
256	p+=s->format->BytesPerPixel;
257	}
258	}
259
260	SDL_UnlockYUVOverlay(o);
261	SDL_UnlockSurface(s);
262	}
263
264	static void PrintUsage(char *argv0)
265	{
266	fprintf(stderr, "Usage: %s [arg] [arg] [arg] ...\n", argv0);
267	fprintf(stderr, "\n");
268	fprintf(stderr, "Where 'arg' is any of the following options:\n");
269	fprintf(stderr, "\n");
270	fprintf(stderr, " -fps <frames per second>\n");
271	fprintf(stderr, " -format <fmt> (one of the: YV12, IYUV, YUY2, UYVY, YVYU)\n");
272	fprintf(stderr, " -scale <scale factor> (initial scale of the overlay)\n");
273	fprintf(stderr, " -help (shows this help)\n");
274	fprintf(stderr, "\n");
275	fprintf(stderr, "Press ESC to exit, or SPACE to freeze the movie while application running.\n");
276	fprintf(stderr, "\n");
277	}
278
279	int main(int argc, char **argv)
280	{
281	Uint8* RawMooseData;
282	SDL_RWops* handle;
283	SDL_Surface* screen;
284	SDL_Surface* MooseFrame[MOOSEFRAMES_COUNT];
285	SDL_Overlay* overlay;
286	SDL_Rect overlayrect;
287	SDL_Event event;
288	Uint32 lastftick;
289	int paused=0;
290	int resized=0;
291	int i;
292	int fps=12;
293	int fpsdelay;
294	int overlay_format=SDL_YUY2_OVERLAY;
295	int scale=5;
296
297	if (SDL_Init(SDL_INIT_VIDEO \| SDL_INIT_NOPARACHUTE) < 0)
298	{
299	fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError());
300	return 3;
301	}
302
303	while ( argc > 1 )
304	{
305	if (strcmp(argv[1], "-fps")== 0)
306	{
307	if (argv[2])
308	{
309	fps = atoi(argv[2]);
310	if (fps==0)
311	{
312	fprintf(stderr, "The -fps option requires an argument [from 1 to 1000], default is 12.\n");
313	quit(10);
314	}
315	if ((fps<0) \|\| (fps>1000))
316	{
317	fprintf(stderr, "The -fps option must be in range from 1 to 1000, default is 12.\n");
318	quit(10);
319	}
320	argv += 2;
321	argc -= 2;
322	}
323	else
324	{
325	fprintf(stderr, "The -fps option requires an argument [from 1 to 1000], default is 12.\n");
326	quit(10);
327	}
328	} else
329	if (strcmp(argv[1], "-format") == 0)
330	{
331	if (argv[2])
332	{
333	if (!strcmp(argv[2],"YV12"))
334	overlay_format = SDL_YV12_OVERLAY;
335	else if(!strcmp(argv[2],"IYUV"))
336	overlay_format = SDL_IYUV_OVERLAY;
337	else if(!strcmp(argv[2],"YUY2"))
338	overlay_format = SDL_YUY2_OVERLAY;
339	else if(!strcmp(argv[2],"UYVY"))
340	overlay_format = SDL_UYVY_OVERLAY;
341	else if(!strcmp(argv[2],"YVYU"))
342	overlay_format = SDL_YVYU_OVERLAY;
343	else
344	{
345	fprintf(stderr, "The -format option %s is not recognized, see help for info.\n", argv[2]);
346	quit(10);
347	}
348	argv += 2;
349	argc -= 2;
350	}
351	else
352	{
353	fprintf(stderr, "The -format option requires an argument, default is YUY2.\n");
354	quit(10);
355	}
356	} else
357	if (strcmp(argv[1], "-scale") == 0)
358	{
359	if (argv[2])
360	{
361	scale = atoi(argv[2]);
362	if (scale==0)
363	{
364	fprintf(stderr, "The -scale option requires an argument [from 1 to 50], default is 5.\n");
365	quit(10);
366	}
367	if ((scale<0) \|\| (scale>50))
368	{
369	fprintf(stderr, "The -scale option must be in range from 1 to 50, default is 5.\n");
370	quit(10);
371	}
372	argv += 2;
373	argc -= 2;
374	}
375	else
376	{
377	fprintf(stderr, "The -fps option requires an argument [from 1 to 1000], default is 12.\n");
378	quit(10);
379	}
380	} else
381	if ((strcmp(argv[1], "-help") == 0 ) \|\| (strcmp(argv[1], "-h") == 0))
382	{
383	PrintUsage(argv[0]);
384	quit(0);
385	} else
386	{
387	fprintf(stderr, "Unrecognized option: %s.\n", argv[1]);
388	quit(10);
389	}
390	break;
391	}
392
393	RawMooseData=(Uint8)malloc(MOOSEFRAME_SIZE MOOSEFRAMES_COUNT);
394	if (RawMooseData==NULL)
395	{
396	fprintf(stderr, "Can't allocate memory for movie !\n");
397	free(RawMooseData);
398	quit(1);
399	}
400
401	/* load the trojan moose images */
402	handle=SDL_RWFromFile("moose.dat", "rb");
403	if (handle==NULL)
404	{
405	fprintf(stderr, "Can't find the file moose.dat !\n");
406	free(RawMooseData);
407	quit(2);
408	}
409
410	SDL_RWread(handle, RawMooseData, MOOSEFRAME_SIZE, MOOSEFRAMES_COUNT);
411
412	SDL_RWclose(handle);
413
414	/* Set video mode */
415	if ( (screen=SDL_SetVideoMode(MOOSEPIC_Wscale, MOOSEPIC_Hscale, 0, SDL_RESIZABLE \| SDL_SWSURFACE)) == NULL )
416	{
417	fprintf(stderr, "Couldn't set video mode: %s\n", SDL_GetError());
418	free(RawMooseData);
419	quit(4);
420	}
421
422	/* Set the window manager title bar */
423	SDL_WM_SetCaption("SDL test overlay: running moose", "testoverlay2");
424
425	for (i=0; i<MOOSEFRAMES_COUNT; i++)
426	{
427	MooseFrame[i]=SDL_CreateRGBSurfaceFrom(RawMooseData+i*MOOSEFRAME_SIZE, MOOSEPIC_W,
428	MOOSEPIC_H, 8, MOOSEPIC_W, 0, 0, 0, 0);
429	if (MooseFrame[i]==NULL)
430	{
431	fprintf(stderr, "Couldn't create SDL_Surfaces:%s\n", SDL_GetError());
432	free(RawMooseData);
433	quit(5);
434	}
435	SDL_SetColors(MooseFrame[i], MooseColors, 0, 84);
436
437	{
438	SDL_Surface *newsurf;
439	SDL_PixelFormat format;
440
441	format.palette=NULL;
442	format.BitsPerPixel=32;
443	format.BytesPerPixel=4;
444	#if SDL_BYTEORDER == SDL_LIL_ENDIAN
445	format.Rshift=0;
446	format.Gshift=8;
447	format.Bshift=16;
448	#else
449	format.Rshift=24;
450	format.Gshift=16;
451	format.Bshift=8;
452	#endif
453	format.Ashift=0;
454	format.Rmask=0xff<<format.Rshift;
455	format.Gmask=0xff<<format.Gshift;
456	format.Bmask=0xff<<format.Bshift;
457	format.Amask=0;
458	format.Rloss=0;
459	format.Gloss=0;
460	format.Bloss=0;
461	format.Aloss=8;
462	format.colorkey=0;
463	format.alpha=0;
464
465	newsurf=SDL_ConvertSurface(MooseFrame[i], &format, SDL_SWSURFACE);
466	if(!newsurf)
467	{
468	fprintf(stderr, "Couldn't convert picture to 32bits RGB: %s\n", SDL_GetError());
469	quit(6);
470	}
471	SDL_FreeSurface(MooseFrame[i]);
472	MooseFrame[i]=newsurf;
473	}
474	}
475
476	free(RawMooseData);
477
478	overlay=SDL_CreateYUVOverlay(MOOSEPIC_W, MOOSEPIC_H, overlay_format, screen);
479	if (!overlay)
480	{
481	fprintf(stderr, "Couldn't create overlay: %s\n", SDL_GetError());
482	quit(7);
483	}
484
485	printf("Created %dx%dx%d %s %s overlay\n",overlay->w,overlay->h,overlay->planes,
486	overlay->hw_overlay?"hardware":"software",
487	overlay->format==SDL_YV12_OVERLAY?"YV12":
488	overlay->format==SDL_IYUV_OVERLAY?"IYUV":
489	overlay->format==SDL_YUY2_OVERLAY?"YUY2":
490	overlay->format==SDL_UYVY_OVERLAY?"UYVY":
491	overlay->format==SDL_YVYU_OVERLAY?"YVYU":
492	"Unknown");
493
494	for(i=0; i<overlay->planes; i++)
495	{
496	printf(" plane %d: pitch=%d\n", i, overlay->pitches[i]);
497	}
498
499	overlayrect.x=0;
500	overlayrect.y=0;
501	overlayrect.w=MOOSEPIC_W*scale;
502	overlayrect.h=MOOSEPIC_H*scale;
503
504	/* set the start frame */
505	i=0;
506	fpsdelay=1000/fps;
507
508	/* Ignore key up events, they don't even get filtered */
509	SDL_EventState(SDL_KEYUP, SDL_IGNORE);
510
511	lastftick=SDL_GetTicks();
512
513	/* Loop, waiting for QUIT or RESIZE */
514	while (1)
515	{
516	if (SDL_PollEvent(&event))
517	{
518	switch (event.type)
519	{
520	case SDL_VIDEORESIZE:
521	screen=SDL_SetVideoMode(event.resize.w, event.resize.h, 0, SDL_RESIZABLE \| SDL_SWSURFACE);
522	overlayrect.w=event.resize.w;
523	overlayrect.h=event.resize.h;
524	if (paused)
525	{
526	resized=1;
527	}
528	break;
529	case SDL_MOUSEBUTTONDOWN:
530	overlayrect.x = event.button.x - overlayrect.w/2;
531	overlayrect.y = event.button.y - overlayrect.h/2;
532	break;
533	case SDL_KEYDOWN:
534	if (event.key.keysym.sym == SDLK_SPACE)
535	{
536	paused=!paused;
537	break;
538	}
539	if (event.key.keysym.sym != SDLK_ESCAPE)
540	{
541	break;
542	}
543	case SDL_QUIT:
544	SDL_FreeYUVOverlay(overlay);
545	for (i=0; i<MOOSEFRAMES_COUNT; i++)
546	{
547	SDL_FreeSurface(MooseFrame[i]);
548	}
549	quit(0);
550	}
551	}
552
553	if ((!paused)\|\|(resized))
554	{
555	if (((SDL_GetTicks()-lastftick)>fpsdelay)\|\|(resized))
556	{
557	lastftick=SDL_GetTicks();
558
559	switch (overlay_format)
560	{
561	case SDL_YUY2_OVERLAY:
562	ConvertRGBtoYUY2(MooseFrame[i], overlay, 0, 100);
563	break;
564	case SDL_YV12_OVERLAY:
565	ConvertRGBtoYV12(MooseFrame[i], overlay, 0, 100);
566	break;
567	case SDL_UYVY_OVERLAY:
568	ConvertRGBtoUYVY(MooseFrame[i], overlay, 0, 100);
569	break;
570	case SDL_YVYU_OVERLAY:
571	ConvertRGBtoYVYU(MooseFrame[i], overlay, 0, 100);
572	break;
573	case SDL_IYUV_OVERLAY:
574	ConvertRGBtoIYUV(MooseFrame[i], overlay, 0, 100);
575	break;
576	}
577
578	SDL_DisplayYUVOverlay(overlay, &overlayrect);
579	if (!resized)
580	{
581	i++;
582	if (i==10)
583	{
584	i=0;
585	}
586	}
587	else
588	{
589	resized=0;
590	}
591	}
592	}
593	/* kind of timeslice to OS */
594	SDL_Delay(1);
595	}
596
597	SDL_Quit();
598	return 0;
599	}
600