test/testalpha.c
author Sam Lantinga <slouken@libsdl.org>
Sun, 28 May 2006 13:04:16 +0000
branchSDL-1.3
changeset 1662 782fd950bd46
parent 1659 14717b52abc0
child 1668 4da1ee79c9af
permissions -rw-r--r--
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. WARNING: None of the video drivers have been updated for the new API yet! The API is still under design and very fluid. The code is now run through a consistent indent format: indent -i4 -nut -nsc -br -ce The headers are being converted to automatically generate doxygen documentation.
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/* Simple program:  Fill a colormap with gray and stripe it down the screen,
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		    Then move an alpha valued sprite around the screen.
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 */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <math.h>
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#include "SDL.h"
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#define FRAME_TICKS	(1000/30)       /* 30 frames/second */
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/* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
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static void
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quit (int rc)
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{
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    SDL_Quit ();
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    exit (rc);
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}
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/* Fill the screen with a gradient */
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static void
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FillBackground (SDL_Surface * screen)
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{
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    Uint8 *buffer;
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    Uint16 *buffer16;
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    Uint16 color;
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    Uint8 gradient;
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    int i, k;
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    /* Set the surface pixels and refresh! */
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    if (SDL_LockSurface (screen) < 0) {
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        fprintf (stderr, "Couldn't lock the display surface: %s\n",
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                 SDL_GetError ());
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        quit (2);
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    }
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    buffer = (Uint8 *) screen->pixels;
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    if (screen->format->BytesPerPixel != 2) {
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        for (i = 0; i < screen->h; ++i) {
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            memset (buffer, (i * 255) / screen->h,
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                    screen->w * screen->format->BytesPerPixel);
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            buffer += screen->pitch;
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        }
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    } else {
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        for (i = 0; i < screen->h; ++i) {
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            gradient = ((i * 255) / screen->h);
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            color =
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                (Uint16) SDL_MapRGB (screen->format, gradient, gradient,
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                                     gradient);
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            buffer16 = (Uint16 *) buffer;
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            for (k = 0; k < screen->w; k++) {
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                *(buffer16 + k) = color;
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            }
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            buffer += screen->pitch;
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        }
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    }
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    SDL_UnlockSurface (screen);
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    SDL_UpdateRect (screen, 0, 0, 0, 0);
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}
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/* Create a "light" -- a yellowish surface with variable alpha */
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SDL_Surface *
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CreateLight (int radius)
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{
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    Uint8 trans, alphamask;
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    int range, addition;
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    int xdist, ydist;
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    Uint16 x, y;
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    Uint16 skip;
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    Uint32 pixel;
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    SDL_Surface *light;
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#ifdef LIGHT_16BIT
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    Uint16 *buf;
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    /* Create a 16 (4/4/4/4) bpp square with a full 4-bit alpha channel */
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    /* Note: this isn't any faster than a 32 bit alpha surface */
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    alphamask = 0x0000000F;
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    light = SDL_CreateRGBSurface (SDL_SWSURFACE, 2 * radius, 2 * radius, 16,
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                                  0x0000F000, 0x00000F00, 0x000000F0,
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                                  alphamask);
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#else
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    Uint32 *buf;
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    /* Create a 32 (8/8/8/8) bpp square with a full 8-bit alpha channel */
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    alphamask = 0x000000FF;
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    light = SDL_CreateRGBSurface (SDL_SWSURFACE, 2 * radius, 2 * radius, 32,
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                                  0xFF000000, 0x00FF0000, 0x0000FF00,
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                                  alphamask);
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    if (light == NULL) {
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        fprintf (stderr, "Couldn't create light: %s\n", SDL_GetError ());
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        return (NULL);
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    }
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#endif
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    /* Fill with a light yellow-orange color */
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    skip = light->pitch - (light->w * light->format->BytesPerPixel);
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#ifdef LIGHT_16BIT
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    buf = (Uint16 *) light->pixels;
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#else
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    buf = (Uint32 *) light->pixels;
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#endif
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    /* Get a tranparent pixel value - we'll add alpha later */
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    pixel = SDL_MapRGBA (light->format, 0xFF, 0xDD, 0x88, 0);
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    for (y = 0; y < light->h; ++y) {
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        for (x = 0; x < light->w; ++x) {
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            *buf++ = pixel;
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        }
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        buf += skip;            /* Almost always 0, but just in case... */
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    }
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    /* Calculate alpha values for the surface. */
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#ifdef LIGHT_16BIT
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    buf = (Uint16 *) light->pixels;
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#else
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    buf = (Uint32 *) light->pixels;
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#endif
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    for (y = 0; y < light->h; ++y) {
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        for (x = 0; x < light->w; ++x) {
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            /* Slow distance formula (from center of light) */
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            xdist = x - (light->w / 2);
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            ydist = y - (light->h / 2);
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            range = (int) sqrt (xdist * xdist + ydist * ydist);
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            /* Scale distance to range of transparency (0-255) */
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            if (range > radius) {
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                trans = alphamask;
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            } else {
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                /* Increasing transparency with distance */
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                trans = (Uint8) ((range * alphamask) / radius);
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                /* Lights are very transparent */
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                addition = (alphamask + 1) / 8;
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                if ((int) trans + addition > alphamask) {
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                    trans = alphamask;
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                } else {
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                    trans += addition;
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                }
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            }
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            /* We set the alpha component as the right N bits */
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            *buf++ |= (255 - trans);
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        }
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        buf += skip;            /* Almost always 0, but just in case... */
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    }
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    /* Enable RLE acceleration of this alpha surface */
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    SDL_SetAlpha (light, SDL_SRCALPHA | SDL_RLEACCEL, 0);
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    /* We're done! */
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    return (light);
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}
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static Uint32 flashes = 0;
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static Uint32 flashtime = 0;
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void
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FlashLight (SDL_Surface * screen, SDL_Surface * light, int x, int y)
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{
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    SDL_Rect position;
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    Uint32 ticks1;
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    Uint32 ticks2;
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    /* Easy, center light */
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    position.x = x - (light->w / 2);
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    position.y = y - (light->h / 2);
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    position.w = light->w;
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    position.h = light->h;
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    ticks1 = SDL_GetTicks ();
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    SDL_BlitSurface (light, NULL, screen, &position);
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    ticks2 = SDL_GetTicks ();
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    SDL_UpdateRects (screen, 1, &position);
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    ++flashes;
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    /* Update time spend doing alpha blitting */
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    flashtime += (ticks2 - ticks1);
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}
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static int sprite_visible = 0;
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static SDL_Surface *sprite;
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static SDL_Surface *backing;
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static SDL_Rect position;
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static int x_vel, y_vel;
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static int alpha_vel;
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int
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LoadSprite (SDL_Surface * screen, char *file)
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{
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    SDL_Surface *converted;
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   191
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    /* Load the sprite image */
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    sprite = SDL_LoadBMP (file);
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    if (sprite == NULL) {
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        fprintf (stderr, "Couldn't load %s: %s", file, SDL_GetError ());
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        return (-1);
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   197
    }
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   198
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   199
    /* Set transparent pixel as the pixel at (0,0) */
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    if (sprite->format->palette) {
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        SDL_SetColorKey (sprite, SDL_SRCCOLORKEY, *(Uint8 *) sprite->pixels);
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   202
    }
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   203
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    /* Convert sprite to video format */
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    converted = SDL_DisplayFormat (sprite);
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    SDL_FreeSurface (sprite);
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    if (converted == NULL) {
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   208
        fprintf (stderr, "Couldn't convert background: %s\n",
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                 SDL_GetError ());
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        return (-1);
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   211
    }
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   212
    sprite = converted;
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   214
    /* Create the background */
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    backing = SDL_CreateRGBSurface (SDL_SWSURFACE, sprite->w, sprite->h, 8,
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                                    0, 0, 0, 0);
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    if (backing == NULL) {
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        fprintf (stderr, "Couldn't create background: %s\n", SDL_GetError ());
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        SDL_FreeSurface (sprite);
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        return (-1);
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   221
    }
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   223
    /* Convert background to video format */
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    converted = SDL_DisplayFormat (backing);
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    SDL_FreeSurface (backing);
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   226
    if (converted == NULL) {
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   227
        fprintf (stderr, "Couldn't convert background: %s\n",
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                 SDL_GetError ());
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        SDL_FreeSurface (sprite);
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   230
        return (-1);
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   231
    }
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    backing = converted;
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    /* Set the initial position of the sprite */
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    position.x = (screen->w - sprite->w) / 2;
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    position.y = (screen->h - sprite->h) / 2;
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    position.w = sprite->w;
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    position.h = sprite->h;
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    x_vel = 0;
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    y_vel = 0;
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    alpha_vel = 1;
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    /* We're ready to roll. :) */
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    return (0);
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}
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void
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AttractSprite (Uint16 x, Uint16 y)
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{
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    x_vel = ((int) x - position.x) / 10;
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    y_vel = ((int) y - position.y) / 10;
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}
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void
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MoveSprite (SDL_Surface * screen, SDL_Surface * light)
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{
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    SDL_Rect updates[2];
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    int alpha;
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    /* Erase the sprite if it was visible */
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    if (sprite_visible) {
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        updates[0] = position;
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        SDL_BlitSurface (backing, NULL, screen, &updates[0]);
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    } else {
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        updates[0].x = 0;
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        updates[0].y = 0;
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        updates[0].w = 0;
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        updates[0].h = 0;
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        sprite_visible = 1;
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    }
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    /* Since the sprite is off the screen, we can do other drawing
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       without being overwritten by the saved area behind the sprite.
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     */
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    if (light != NULL) {
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        int x, y;
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        SDL_GetMouseState (&x, &y);
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        FlashLight (screen, light, x, y);
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    }
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    /* Move the sprite, bounce at the wall */
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    position.x += x_vel;
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    if ((position.x < 0) || (position.x >= screen->w)) {
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        x_vel = -x_vel;
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        position.x += x_vel;
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    }
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    position.y += y_vel;
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   289
    if ((position.y < 0) || (position.y >= screen->h)) {
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        y_vel = -y_vel;
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        position.y += y_vel;
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    }
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   294
    /* Update transparency (fade in and out) */
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    alpha = sprite->format->alpha;
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   296
    if ((alpha + alpha_vel) < 0) {
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        alpha_vel = -alpha_vel;
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   298
    } else if ((alpha + alpha_vel) > 255) {
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   299
        alpha_vel = -alpha_vel;
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    }
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   301
    SDL_SetAlpha (sprite, SDL_SRCALPHA, (Uint8) (alpha + alpha_vel));
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   302
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   303
    /* Save the area behind the sprite */
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   304
    updates[1] = position;
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   305
    SDL_BlitSurface (screen, &updates[1], backing, NULL);
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   306
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   307
    /* Blit the sprite onto the screen */
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   308
    updates[1] = position;
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   309
    SDL_BlitSurface (sprite, NULL, screen, &updates[1]);
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   310
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   311
    /* Make it so! */
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   312
    SDL_UpdateRects (screen, 2, updates);
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   313
}
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   314
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   315
void
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   316
WarpSprite (SDL_Surface * screen, int x, int y)
0
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   317
{
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   318
    SDL_Rect updates[2];
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   319
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   320
    /* Erase, move, Draw, update */
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   321
    updates[0] = position;
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   322
    SDL_BlitSurface (backing, NULL, screen, &updates[0]);
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   323
    position.x = x - sprite->w / 2;     /* Center about X */
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   324
    position.y = y - sprite->h / 2;     /* Center about Y */
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   325
    updates[1] = position;
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   326
    SDL_BlitSurface (screen, &updates[1], backing, NULL);
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   327
    updates[1] = position;
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   328
    SDL_BlitSurface (sprite, NULL, screen, &updates[1]);
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   329
    SDL_UpdateRects (screen, 2, updates);
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   330
}
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   331
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   332
int
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   333
main (int argc, char *argv[])
0
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diff changeset
   334
{
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   335
    const SDL_VideoInfo *info;
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   336
    SDL_Surface *screen;
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   337
    int w, h;
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   338
    Uint8 video_bpp;
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   339
    Uint32 videoflags;
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   340
    int i, done;
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   341
    SDL_Event event;
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   342
    SDL_Surface *light;
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   343
    int mouse_pressed;
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   344
    Uint32 ticks, lastticks;
691
609543e2b3a1 Date: Fri, 15 Aug 2003 09:13:59 +0300
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   345
0
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   346
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   347
    /* Initialize SDL */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   348
    if (SDL_Init (SDL_INIT_VIDEO) < 0) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   349
        fprintf (stderr, "Couldn't initialize SDL: %s\n", SDL_GetError ());
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   350
        return (1);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   351
    }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   352
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   353
    /* Alpha blending doesn't work well at 8-bit color */
1465
8dfa9a6d69a5 Updated WinCE support by Dmitry (with some tweaks)
Sam Lantinga <slouken@libsdl.org>
parents: 1293
diff changeset
   354
#ifdef _WIN32_WCE
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   355
    /* Pocket PC */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   356
    w = 240;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   357
    h = 320;
1465
8dfa9a6d69a5 Updated WinCE support by Dmitry (with some tweaks)
Sam Lantinga <slouken@libsdl.org>
parents: 1293
diff changeset
   358
#else
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   359
    w = 640;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   360
    h = 480;
1465
8dfa9a6d69a5 Updated WinCE support by Dmitry (with some tweaks)
Sam Lantinga <slouken@libsdl.org>
parents: 1293
diff changeset
   361
#endif
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   362
    info = SDL_GetVideoInfo ();
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   363
    if (info->vfmt->BitsPerPixel > 8) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   364
        video_bpp = info->vfmt->BitsPerPixel;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   365
    } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   366
        video_bpp = 16;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   367
        fprintf (stderr, "forced 16 bpp mode\n");
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   368
    }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   369
    videoflags = SDL_SWSURFACE;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   370
    for (i = 1; argv[i]; ++i) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   371
        if (strcmp (argv[i], "-bpp") == 0) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   372
            video_bpp = atoi (argv[++i]);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   373
            if (video_bpp <= 8) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   374
                video_bpp = 16;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   375
                fprintf (stderr, "forced 16 bpp mode\n");
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   376
            }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   377
        } else if (strcmp (argv[i], "-hw") == 0) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   378
            videoflags |= SDL_HWSURFACE;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   379
        } else if (strcmp (argv[i], "-warp") == 0) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   380
            videoflags |= SDL_HWPALETTE;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   381
        } else if (strcmp (argv[i], "-width") == 0 && argv[i + 1]) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   382
            w = atoi (argv[++i]);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   383
        } else if (strcmp (argv[i], "-height") == 0 && argv[i + 1]) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   384
            h = atoi (argv[++i]);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   385
        } else if (strcmp (argv[i], "-resize") == 0) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   386
            videoflags |= SDL_RESIZABLE;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   387
        } else if (strcmp (argv[i], "-noframe") == 0) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   388
            videoflags |= SDL_NOFRAME;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   389
        } else if (strcmp (argv[i], "-fullscreen") == 0) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   390
            videoflags |= SDL_FULLSCREEN;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   391
        } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   392
            fprintf (stderr,
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   393
                     "Usage: %s [-width N] [-height N] [-bpp N] [-warp] [-hw] [-fullscreen]\n",
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   394
                     argv[0]);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   395
            quit (1);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   396
        }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   397
    }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   398
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   399
    /* Set video mode */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   400
    if ((screen = SDL_SetVideoMode (w, h, video_bpp, videoflags)) == NULL) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   401
        fprintf (stderr, "Couldn't set %dx%dx%d video mode: %s\n",
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   402
                 w, h, video_bpp, SDL_GetError ());
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   403
        quit (2);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   404
    }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   405
    FillBackground (screen);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   406
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   407
    /* Create the light */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   408
    light = CreateLight (82);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   409
    if (light == NULL) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   410
        quit (1);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   411
    }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   412
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   413
    /* Load the sprite */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   414
    if (LoadSprite (screen, "icon.bmp") < 0) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   415
        SDL_FreeSurface (light);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   416
        quit (1);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   417
    }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   418
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   419
    /* Print out information about our surfaces */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   420
    printf ("Screen is at %d bits per pixel\n", screen->format->BitsPerPixel);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   421
    if ((screen->flags & SDL_HWSURFACE) == SDL_HWSURFACE) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   422
        printf ("Screen is in video memory\n");
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   423
    } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   424
        printf ("Screen is in system memory\n");
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   425
    }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   426
    if ((screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   427
        printf ("Screen has double-buffering enabled\n");
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   428
    }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   429
    if ((sprite->flags & SDL_HWSURFACE) == SDL_HWSURFACE) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   430
        printf ("Sprite is in video memory\n");
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   431
    } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   432
        printf ("Sprite is in system memory\n");
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   433
    }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   434
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   435
    /* Run a sample blit to trigger blit acceleration */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   436
    MoveSprite (screen, NULL);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   437
    if ((sprite->flags & SDL_HWACCEL) == SDL_HWACCEL) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   438
        printf ("Sprite blit uses hardware alpha acceleration\n");
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   439
    } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   440
        printf ("Sprite blit dosn't uses hardware alpha acceleration\n");
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   441
    }
886
05c551e5bc64 Date: Sat, 24 Apr 2004 15:13:32 +0300
Sam Lantinga <slouken@libsdl.org>
parents: 691
diff changeset
   442
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   443
    /* Set a clipping rectangle to clip the outside edge of the screen */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   444
    {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   445
        SDL_Rect clip;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   446
        clip.x = 32;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   447
        clip.y = 32;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   448
        clip.w = screen->w - (2 * 32);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   449
        clip.h = screen->h - (2 * 32);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   450
        SDL_SetClipRect (screen, &clip);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   451
    }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   452
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   453
    /* Wait for a keystroke */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   454
    lastticks = SDL_GetTicks ();
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   455
    done = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   456
    mouse_pressed = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   457
    while (!done) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   458
        /* Update the frame -- move the sprite */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   459
        if (mouse_pressed) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   460
            MoveSprite (screen, light);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   461
            mouse_pressed = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   462
        } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   463
            MoveSprite (screen, NULL);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   464
        }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   465
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   466
        /* Slow down the loop to 30 frames/second */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   467
        ticks = SDL_GetTicks ();
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   468
        if ((ticks - lastticks) < FRAME_TICKS) {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   469
#ifdef CHECK_SLEEP_GRANULARITY
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   470
            fprintf (stderr, "Sleeping %d ticks\n",
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   471
                     FRAME_TICKS - (ticks - lastticks));
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   472
#endif
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   473
            SDL_Delay (FRAME_TICKS - (ticks - lastticks));
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   474
#ifdef CHECK_SLEEP_GRANULARITY
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   475
            fprintf (stderr, "Slept %d ticks\n", (SDL_GetTicks () - ticks));
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   476
#endif
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   477
        }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   478
        lastticks = ticks;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   479
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   480
        /* Check for events */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   481
        while (SDL_PollEvent (&event)) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   482
            switch (event.type) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   483
            case SDL_VIDEORESIZE:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   484
                screen =
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   485
                    SDL_SetVideoMode (event.resize.w, event.resize.h,
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   486
                                      video_bpp, videoflags);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   487
                if (screen) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   488
                    FillBackground (screen);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   489
                }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   490
                break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   491
                /* Attract sprite while mouse is held down */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   492
            case SDL_MOUSEMOTION:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   493
                if (event.motion.state != 0) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   494
                    AttractSprite (event.motion.x, event.motion.y);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   495
                    mouse_pressed = 1;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   496
                }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   497
                break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   498
            case SDL_MOUSEBUTTONDOWN:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   499
                if (event.button.button == 1) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   500
                    AttractSprite (event.button.x, event.button.y);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   501
                    mouse_pressed = 1;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   502
                } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   503
                    SDL_Rect area;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   504
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   505
                    area.x = event.button.x - 16;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   506
                    area.y = event.button.y - 16;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   507
                    area.w = 32;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   508
                    area.h = 32;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   509
                    SDL_FillRect (screen, &area, 0);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   510
                    SDL_UpdateRects (screen, 1, &area);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   511
                }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   512
                break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   513
            case SDL_KEYDOWN:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   514
                if (event.key.keysym.sym == SDLK_ESCAPE) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   515
                    done = 1;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   516
                }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   517
                break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   518
            case SDL_QUIT:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   519
                done = 1;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   520
                break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   521
            default:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   522
                break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   523
            }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   524
        }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   525
    }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   526
    SDL_FreeSurface (light);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   527
    SDL_FreeSurface (sprite);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   528
    SDL_FreeSurface (backing);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   529
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   530
    /* Print out some timing information */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   531
    if (flashes > 0) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   532
        printf ("%d alpha blits, ~%4.4f ms per blit\n",
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   533
                flashes, (float) flashtime / flashes);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   534
    }
1151
be9c9c8f6d53 Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents: 886
diff changeset
   535
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   536
    SDL_Quit ();
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
   537
    return (0);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   538
}