--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/libsdl-trunk/test/graywin.c Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,257 @@
+
+/* Simple program: Fill a colormap with gray and stripe it down the screen */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+#include "SDL.h"
+
+#ifdef TEST_VGA16 /* Define this if you want to test VGA 16-color video modes */
+#define NUM_COLORS 16
+#else
+#define NUM_COLORS 256
+#endif
+
+/* Draw a randomly sized and colored box centered about (X,Y) */
+void DrawBox(SDL_Surface *screen, int X, int Y, int width, int height)
+{
+ static unsigned int seeded = 0;
+ SDL_Rect area;
+ Uint32 color;
+ Uint32 randc;
+
+ /* Seed the random number generator */
+ if ( seeded == 0 ) {
+ srand(time(NULL));
+ seeded = 1;
+ }
+
+ /* Get the bounds of the rectangle */
+ area.w = (rand()%width);
+ area.h = (rand()%height);
+ area.x = X-(area.w/2);
+ area.y = Y-(area.h/2);
+ randc = (rand()%NUM_COLORS);
+
+ if (screen->format->BytesPerPixel==1)
+ {
+ color = randc;
+ }
+ else
+ {
+ color = SDL_MapRGB(screen->format, randc, randc, randc);
+ }
+
+ /* Do it! */
+ SDL_FillRect(screen, &area, color);
+ if ( screen->flags & SDL_DOUBLEBUF ) {
+ SDL_Flip(screen);
+ } else {
+ SDL_UpdateRects(screen, 1, &area);
+ }
+}
+
+void DrawBackground(SDL_Surface *screen)
+{
+ int i, j, k;
+ Uint8 *buffer;
+ Uint16 *buffer16;
+ Uint16 color;
+ Uint8 gradient;
+
+ /* Set the surface pixels and refresh! */
+ /* Use two loops in case the surface is double-buffered (both sides) */
+
+ for ( j=0; j<2; ++j ) {
+ if ( SDL_LockSurface(screen) < 0 ) {
+ fprintf(stderr, "Couldn't lock display surface: %s\n",
+ SDL_GetError());
+ return;
+ }
+ buffer = (Uint8 *)screen->pixels;
+
+ if (screen->format->BytesPerPixel!=2) {
+ for ( i=0; i<screen->h; ++i ) {
+ memset(buffer,(i*(NUM_COLORS-1))/screen->h, screen->w * screen->format->BytesPerPixel);
+ buffer += screen->pitch;
+ }
+ }
+ else
+ {
+ for ( i=0; i<screen->h; ++i ) {
+ gradient=((i*(NUM_COLORS-1))/screen->h);
+ color = SDL_MapRGB(screen->format, gradient, gradient, gradient);
+ buffer16=(Uint16*)buffer;
+ for (k=0; k<screen->w; k++)
+ {
+ *(buffer16+k)=color;
+ }
+ buffer += screen->pitch;
+ }
+ }
+
+ SDL_UnlockSurface(screen);
+ if ( screen->flags & SDL_DOUBLEBUF ) {
+ SDL_Flip(screen);
+ } else {
+ SDL_UpdateRect(screen, 0, 0, 0, 0);
+ break;
+ }
+ }
+}
+
+SDL_Surface *CreateScreen(Uint16 w, Uint16 h, Uint8 bpp, Uint32 flags)
+{
+ SDL_Surface *screen;
+ int i;
+ SDL_Color palette[NUM_COLORS];
+
+ /* Set the video mode */
+ screen = SDL_SetVideoMode(w, h, bpp, flags);
+ if ( screen == NULL ) {
+ fprintf(stderr, "Couldn't set display mode: %s\n",
+ SDL_GetError());
+ return(NULL);
+ }
+ fprintf(stderr, "Screen is in %s mode\n",
+ (screen->flags & SDL_FULLSCREEN) ? "fullscreen" : "windowed");
+
+ if (bpp==8) {
+ /* Set a gray colormap, reverse order from white to black */
+ for ( i=0; i<NUM_COLORS; ++i ) {
+ palette[i].r = (NUM_COLORS-1)-i * (256 / NUM_COLORS);
+ palette[i].g = (NUM_COLORS-1)-i * (256 / NUM_COLORS);
+ palette[i].b = (NUM_COLORS-1)-i * (256 / NUM_COLORS);
+ }
+ SDL_SetColors(screen, palette, 0, NUM_COLORS);
+ }
+
+ return(screen);
+}
+
+int main(int argc, char *argv[])
+{
+ SDL_Surface *screen;
+ Uint32 videoflags;
+ int done;
+ SDL_Event event;
+ int width, height, bpp;
+
+ /* Initialize SDL */
+ if ( SDL_Init(SDL_INIT_VIDEO) < 0 ) {
+ fprintf(stderr, "Couldn't initialize SDL: %s\n",SDL_GetError());
+ exit(1);
+ }
+
+ /* See if we try to get a hardware colormap */
+ width = 640;
+ height = 480;
+ bpp = 8;
+ videoflags = SDL_SWSURFACE;
+ while ( argc > 1 ) {
+ --argc;
+ if ( argv[argc-1] && (strcmp(argv[argc-1], "-width") == 0) ) {
+ width = atoi(argv[argc]);
+ --argc;
+ } else
+ if ( argv[argc-1] && (strcmp(argv[argc-1], "-height") == 0) ) {
+ height = atoi(argv[argc]);
+ --argc;
+ } else
+ if ( argv[argc-1] && (strcmp(argv[argc-1], "-bpp") == 0) ) {
+ bpp = atoi(argv[argc]);
+ --argc;
+ } else
+ if ( argv[argc] && (strcmp(argv[argc], "-hw") == 0) ) {
+ videoflags |= SDL_HWSURFACE;
+ } else
+ if ( argv[argc] && (strcmp(argv[argc], "-hwpalette") == 0) ) {
+ videoflags |= SDL_HWPALETTE;
+ } else
+ if ( argv[argc] && (strcmp(argv[argc], "-flip") == 0) ) {
+ videoflags |= SDL_DOUBLEBUF;
+ } else
+ if ( argv[argc] && (strcmp(argv[argc], "-noframe") == 0) ) {
+ videoflags |= SDL_NOFRAME;
+ } else
+ if ( argv[argc] && (strcmp(argv[argc], "-resize") == 0) ) {
+ videoflags |= SDL_RESIZABLE;
+ } else
+ if ( argv[argc] && (strcmp(argv[argc], "-fullscreen") == 0) ) {
+ videoflags |= SDL_FULLSCREEN;
+ } else {
+ fprintf(stderr, "Usage: %s [-width] [-height] [-bpp] [-hw] [-hwpalette] [-flip] [-noframe] [-fullscreen] [-resize]\n",
+ argv[0]);
+ exit(1);
+ }
+ }
+
+ /* Set a video mode */
+ screen = CreateScreen(width, height, bpp, videoflags);
+ if ( screen == NULL ) {
+ exit(2);
+ }
+
+ DrawBackground(screen);
+
+ /* Wait for a keystroke */
+ done = 0;
+ while ( !done && SDL_WaitEvent(&event) ) {
+ switch (event.type) {
+ case SDL_MOUSEBUTTONDOWN:
+ DrawBox(screen, event.button.x, event.button.y, width, height);
+ break;
+ case SDL_KEYDOWN:
+ /* Ignore ALT-TAB for windows */
+ if ( (event.key.keysym.sym == SDLK_LALT) ||
+ (event.key.keysym.sym == SDLK_TAB) ) {
+ break;
+ }
+ /* Center the mouse on <SPACE> */
+ if ( event.key.keysym.sym == SDLK_SPACE ) {
+ SDL_WarpMouse(width/2, height/2);
+ break;
+ }
+ /* Toggle fullscreen mode on <RETURN> */
+ if ( event.key.keysym.sym == SDLK_RETURN ) {
+ videoflags ^= SDL_FULLSCREEN;
+ screen = CreateScreen(
+ screen->w, screen->h,
+ screen->format->BitsPerPixel,
+ videoflags);
+ if ( screen == NULL ) {
+ fprintf(stderr,
+ "Couldn't toggle fullscreen mode\n");
+ done = 1;
+ }
+ DrawBackground(screen);
+ break;
+ }
+ /* Any other key quits the application... */
+ case SDL_QUIT:
+ done = 1;
+ break;
+ case SDL_VIDEOEXPOSE:
+ DrawBackground(screen);
+ break;
+ case SDL_VIDEORESIZE:
+ screen = CreateScreen(
+ event.resize.w, event.resize.h,
+ screen->format->BitsPerPixel,
+ videoflags);
+ if ( screen == NULL ) {
+ fprintf(stderr,
+ "Couldn't resize video mode\n");
+ done = 1;
+ }
+ DrawBackground(screen);
+ break;
+ default:
+ break;
+ }
+ }
+ SDL_Quit();
+ return(0);
+}