Mercurial > sdl-ios-xcode
view test/testoverlay2.c @ 937:1e6366bde299
Date: Tue, 27 Jul 2004 17:14:00 +0200
From: "Eckhard Stolberg"
Subject: Controller names in SDL for Windows
I'm working on an Atari 2600 emulator for different systems that uses
the SDL. Some time ago someone created an adaptor that lets you use
your old Atari controllers with your computer through the USB port.
Some of the Atari controllers require special handling by the emulator,
so it would be nice, if it would be possible to detect if any of the
controllers connected to the computer is this adaptor.
SDL would allow that with the SDL_JoystickName function, but unfortunately
it doesn't work properly on Windows. On Linux and MacOSX this function
returns the name of the controller, but on Windows you'll only get the
name of the joystick driver. Most joysticks nowadays use the generic
Microsoft driver, so they all return the same name.
In an old MSDN article
(http://msdn.microsoft.com/archive/default.asp?url=/archive/en-us/dnarinput/html/msdn_extdirect.asp)
Microsoft describes how to read out the OEM controller names from the registry.
I have implemented this for the SDL controller handler on Windows,
and now reading the joystick name works properly there too.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Sat, 21 Aug 2004 03:45:58 +0000 |
parents | 05c551e5bc64 |
children | 6b8f0543337c |
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/******************************************************************************** * * * 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; }