--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/testoverlay2.c	Fri Aug 08 21:31:18 2003 +0000
@@ -0,0 +1,572 @@
+/********************************************************************************
+ *                                                                              *
+ * 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);
+}
+
+void Draw()
+{
+}
+
+static void PrintUsage(char *argv0)
+{
+    fprintf(stderr, "Usage: %s [arg] [arg] [arg] ...\n", argv0);
+    fprintf(stderr, "Where 'arg' is one of:\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 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", "r");
+    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 640x480 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);
+
+    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;
+                     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)
+        {
+            if ((SDL_GetTicks()-lastftick)>fpsdelay)
+            {
+                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);
+                i++;
+                if (i==10)
+                {
+                    i=0;
+                }
+            }
+        }
+        /* kind of timeslice to OS */
+        SDL_Delay(1);
+    }
+
+    return 0;
+}
+