test/testoverlay2.c
author Sam Lantinga <slouken@libsdl.org>
Thu, 06 May 2004 15:55:06 +0000
changeset 886 05c551e5bc64
parent 753 b14fdadd8311
child 1030 6b8f0543337c
permissions -rw-r--r--
Date: Sat, 24 Apr 2004 15:13:32 +0300 From: "Mike Gorchak" Subject: SDL updates for the QNX6 1. Updated the README.QNX 2. Updated libtool scripts, which are shipped with SDL for QNX6 support. 3. Added some code to support the new QNX 6.3.0, which is in beta now. 4. Added code to detect the hw features, which driver supports. 5. Added hw alpha blits code. 6. Fixed bug when application switches to fullscreen more the 2 times. (afte\ r that window becames always stay on top). 7. Updated a bit README for the tests. 8. Added information about acceleration show in the testalpha.c test. 9. Added small fixes to the testoverlay2.c test. 10. Added alpha and cc+alpha blits benchmarks to the testvidinfo.c test.

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

#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}
};

/* 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)
{
    int i;

    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;
    }
}

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);
}

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);
}

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);
}

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);
}

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;

    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");
                    return -1;
                }
                if ((fps<0) || (fps>1000))
                {
                    fprintf(stderr, "The -fps option must be in range from 1 to 1000, default is 12.\n");
                    return -1;
                }
                argv += 2;
                argc -= 2;
            }
            else
            {
                fprintf(stderr, "The -fps option requires an argument [from 1 to 1000], default is 12.\n");
                return -1;
            }
        } 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]);
                    return -1;
                }
                argv += 2;
                argc -= 2;
            }
            else
            {
                fprintf(stderr, "The -format option requires an argument, default is YUY2.\n");
                return -1;
            }
        } 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");
                    return -1;
                }
                if ((scale<0) || (scale>50))
                {
                    fprintf(stderr, "The -scale option must be in range from 1 to 50, default is 5.\n");
                    return -1;
                }
                argv += 2;
                argc -= 2;
            }
            else
            {
                fprintf(stderr, "The -fps option requires an argument [from 1 to 1000], default is 12.\n");
                return -1;
            }
        } else
        if ((strcmp(argv[1], "-help") == 0 ) || (strcmp(argv[1], "-h") == 0))
        {
            PrintUsage(argv[0]);
            return 0;
        } else
        {
            fprintf(stderr, "Unrecognized option: %s.\n", argv[1]);
            return -1;
        }
        break;
    }
   
    RawMooseData=(Uint8*)malloc(MOOSEFRAME_SIZE * MOOSEFRAMES_COUNT);
    if (RawMooseData==NULL)
    {
        fprintf(stderr, "Can't allocate memory for movie !\n");
        free(RawMooseData);
        return 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);
        return 2;
    }
   
    SDL_RWread(handle, RawMooseData, MOOSEFRAME_SIZE, MOOSEFRAMES_COUNT);

    SDL_RWclose(handle);

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

    /* 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", 0, SDL_GetError());
        free(RawMooseData);
        return 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", 0, SDL_GetError());
            free(RawMooseData);
            return 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());
                    return 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());
        return 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_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]);
                     }
                     return 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);
    }

    return 0;
}