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framebuffer.c
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framebuffer.c
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/***********************************************************
* K O U L E S *
*----------------------------------------------------------*
* C1995 JAHUSOFT *
* Jan Hubicka *
* Dukelskych Bojovniku 1944 *
* 390 03 Tabor *
* Czech Republic *
* Phone: 0041-361-32613 *
* eMail: [email protected] *
*----------------------------------------------------------*
* Copyright(c)1995,1996 by Jan Hubicka.See README for *
* licence details. *
*----------------------------------------------------------*
* framebuffer.c fast 8 bit framebuffer bitmap creation *
* routines *
***********************************************************/
#include "koules.h"
#define NCOLORS 32
#define HOLE_XCENTER (2*HOLE_RADIUS-3*HOLE_RADIUS/4)
#define HOLE_YCENTER (2*HOLE_RADIUS-HOLE_RADIUS/4)
#define HOLE_MAX_RADIUS (HOLE_RADIUS/DIV+0.5*HOLE_RADIUS/DIV)
#define HOLE_SIZE_MAX (radius*radius)
//DKS
//#ifndef NODIRECT
/*
* hardcoded bitmap drawing routines
*/
//DKS - modified & replaced below
//static char *
//draw_ball_bitmap (int radius, CONST int color)
//{
// char *bitmap = NULL, *point;
// int x, y, r;
// radius /= DIV;
// if ((bitmap = alloca ((radius * 2) * (radius * 2) + 2)) == NULL)
// perror ("create_ball_bitmap"), exit (-1);
// point = bitmap;
// for (y = 0; y < radius * 2; y++)
// for (x = 0; x < radius * 2; x++, point++)
// {
// if ((x - radius) * (x - radius) + (y - radius) * (y - radius)
// < (radius - 0.5) * (radius - 0.5))
// {
// r = (x - 3 * radius / 4) * (x - 3 * radius / 4) +
// (y - radius / 4) * (y - radius / 4);
// r = r * 32 / (1.5 * radius) / (1.5 * radius);
// if (r > 31)
// r = 31;
// *point = color + r;
// }
// else
// *point = 0;
// }
// return (CompileBitmap (radius * 2, radius * 2, (char *) bitmap));
//}
//DKS - modified
static SDL_Surface *draw_ball_bitmap (int radius, const int color)
{
SDL_Surface *newsurface = NULL;
int x, y, r;
radius /= DIV;
if ((newsurface = SDL_CreateRGBSurface(SDL_HWSURFACE | SDL_RLEACCEL | SDL_SRCCOLORKEY, radius * 2, radius * 2, physicalscreen->format->BitsPerPixel,
physicalscreen->format->Rmask, physicalscreen->format->Gmask, physicalscreen->format->Bmask, physicalscreen->format->Amask)) == NULL)
printf("create_ball_bitmap error\n"), exit (-1);
if SDL_MUSTLOCK(newsurface)
SDL_LockSurface(newsurface);
for (y = 0; y < radius * 2; y++)
for (x = 0; x < radius * 2; x++)
{
if ((x - radius) * (x - radius) + (y - radius) * (y - radius)
< (radius - 0.5) * (radius - 0.5))
{
r = (x - 3 * radius / 4) * (x - 3 * radius / 4) +
(y - radius / 4) * (y - radius / 4);
r = r * 32 / (1.5 * radius) / (1.5 * radius);
if (r > 31)
r = 31;
//*point = color + r;
SSetPixel(newsurface, x, y, color + r);
}
else
SSetPixel(newsurface, x, y, 0);
}
if SDL_MUSTLOCK(newsurface)
SDL_UnlockSurface(newsurface);
//DKS
#ifdef GCW
SDL_SetColorKey(newsurface, SDL_SRCCOLORKEY, colors_RGBA[0]);
#else
SDL_SetColorKey(newsurface, SDL_SRCCOLORKEY, colors_16bit[0]);
#endif
return newsurface;
}
//DKS - modified and replaced
//static char *
//draw_reversed_ball_bitmap (int radius, CONST int color)
//{
// char *bitmap = NULL, *point;
// int x, y, r;
// radius /= DIV;
// if ((bitmap = alloca ((radius * 2) * (radius * 2) + 2)) == NULL)
// perror ("create_ball_bitmap"), exit (-1);
// point = bitmap;
// for (y = 0; y < radius * 2; y++)
// for (x = 0; x < radius * 2; x++, point++)
// {
// if ((x - radius) * (x - radius) + (y - radius) * (y - radius)
// < (radius - 0.5) * (radius - 0.5))
// {
// r = (x - 3 * radius / 4) * (x - 3 * radius / 4) +
// (y - radius / 4) * (y - radius / 4);
// r = r * 32 / (1.5 * radius) / (1.5 * radius);
// if (r > 31)
// r = 31;
// *point = color + 16 + r / 2;
// }
// else
// *point = 0;
// }
// return (CompileBitmap (radius * 2, radius * 2, (char *) bitmap));
//}
//DKS - modified
static SDL_Surface *
draw_reversed_ball_bitmap (int radius, CONST int color)
{
SDL_Surface *newsurface = NULL;
int x, y, r;
radius /= DIV;
if ((newsurface = SDL_CreateRGBSurface(SDL_HWSURFACE | SDL_RLEACCEL | SDL_SRCCOLORKEY,radius * 2, radius * 2, physicalscreen->format->BitsPerPixel,
physicalscreen->format->Rmask, physicalscreen->format->Gmask, physicalscreen->format->Bmask, physicalscreen->format->Amask)) == NULL)
printf("create_ball_bitmap error\n"), exit (-1);
if SDL_MUSTLOCK(newsurface)
SDL_LockSurface(newsurface);
for (y = 0; y < radius * 2; y++)
for (x = 0; x < radius * 2; x++)
{
if ((x - radius) * (x - radius) + (y - radius) * (y - radius)
< (radius - 0.5) * (radius - 0.5))
{
r = (x - 3 * radius / 4) * (x - 3 * radius / 4) +
(y - radius / 4) * (y - radius / 4);
r = r * 32 / (1.5 * radius) / (1.5 * radius);
if (r > 31)
r = 31;
SSetPixel(newsurface, x, y, (color + 16 + r / 2));
}
else
SSetPixel(newsurface, x, y, 0);
}
if SDL_MUSTLOCK(newsurface)
SDL_UnlockSurface(newsurface);
#ifdef SDL32BPP
SDL_SetColorKey(newsurface, SDL_RLEACCEL | SDL_SRCCOLORKEY, colors_RGBA[0]);
#else
SDL_SetColorKey(newsurface, SDL_RLEACCEL | SDL_SRCCOLORKEY, colors_16bit[0]);
#endif
return newsurface;
}
//DKS - modified and replacede
//static char *
//draw_apple_bitmap (int radius, CONST int color)
//{
// char *bitmap = NULL, *point;
// int x, y, r;
// int radius1;
// radius /= DIV;
// if ((bitmap = alloca ((radius * 2) * (radius * 2) + 2)) == NULL)
// perror ("create_ball_bitmap"), exit (-1);
// point = bitmap;
// for (y = 0; y < radius * 2; y++)
// for (x = 0; x < radius * 2; x++, point++)
// {
// if (DIV == 2)
// radius1 = radius * (abs (x - radius) / 2 + 25) / 30;
// else
// radius1 = radius * (abs (x - radius) / 2 + 50) / 60;
// if (radius1 > radius)
// radius1 = radius;
// if ((x - radius) * (x - radius) + (y - radius) * (y - radius)
// < ((radius1) * (radius1)))
// {
// r = (x - 3 * radius / 4) * (x - 3 * radius / 4) +
// (y - radius / 4) * (y - radius / 4);
// r = 3 + r * 22 / (1.5 * radius1) / (1.5 * radius1);
// if (r > 31)
// r = 31;
// *point = color + r;
// }
// else
// *point = 0;
// }
// return (CompileBitmap (radius * 2, radius * 2, (char *) bitmap));
//}
//DKS - modified
static SDL_Surface *
draw_apple_bitmap (int radius, CONST int color)
{
SDL_Surface *newsurface = NULL;
int x, y, r;
int radius1;
radius /= DIV;
if ((newsurface = SDL_CreateRGBSurface(SDL_HWSURFACE | SDL_RLEACCEL | SDL_SRCCOLORKEY,radius * 2, radius * 2, physicalscreen->format->BitsPerPixel,
physicalscreen->format->Rmask, physicalscreen->format->Gmask, physicalscreen->format->Bmask, physicalscreen->format->Amask)) == NULL)
printf("create_ball_bitmap error\n"), exit (-1);
if SDL_MUSTLOCK(newsurface)
SDL_LockSurface(newsurface);
for (y = 0; y < radius * 2; y++)
for (x = 0; x < radius * 2; x++)
{
if (DIV == 2)
radius1 = radius * (abs (x - radius) / 2 + 25) / 30;
else
radius1 = radius * (abs (x - radius) / 2 + 50) / 60;
if (radius1 > radius)
radius1 = radius;
if ((x - radius) * (x - radius) + (y - radius) * (y - radius)
< ((radius1) * (radius1)))
{
r = (x - 3 * radius / 4) * (x - 3 * radius / 4) +
(y - radius / 4) * (y - radius / 4);
r = 3 + r * 22 / (1.5 * radius1) / (1.5 * radius1);
if (r > 31)
r = 31;
SSetPixel(newsurface, x, y, (color + r));
}
else
SSetPixel(newsurface, x, y, 0);
}
if SDL_MUSTLOCK(newsurface)
SDL_UnlockSurface(newsurface);
#ifdef SDL32BPP
SDL_SetColorKey(newsurface, SDL_RLEACCEL | SDL_SRCCOLORKEY, colors_RGBA[0]);
#else
SDL_SetColorKey(newsurface, SDL_RLEACCEL | SDL_SRCCOLORKEY, colors_16bit[0]);
#endif
return newsurface;
}
//DKS #else
//DKS static float err = 0.0;
//DKS
//#ifdef XSUPPORT
//static INLINE int
//errdist (int c)
//{
// float sat, merr;
// int i;
// int p;
// c &= 0xff;
// sat = opixels[c] + err;
// merr = sat - spixels[c];
// p = c;
// if (sat < spixels[c])
// {
// int max = c / 32;
// max = (max + 1) * 32;
// for (i = c; i < max && i < 255; i++)
// {
// if (fabs (merr) > fabs (spixels[i] - sat))
// {
// p = i;
// merr = sat - spixels[i];
// }
// }
// }
// if (sat > spixels[c])
// {
// int min = c / 32;
// min *= 32;
// for (i = c; i > min && i > 0; i--)
// {
// if (fabs (merr) > fabs (spixels[i] - sat))
// {
// p = i;
// merr = sat - spixels[i];
// }
// }
// }
// if (fabs (merr) > fabs (64 - sat))
// {
// p = 255;
// merr = sat - 64;
// }
// if (fabs (merr) > fabs (sat))
// {
// p = 32;
// merr = sat;
// }
// err = merr;
// return (p);
//}
//DKS #else
#define errdist(c) c
//DKS#endif
//DKS
//static BitmapType
//draw_ball_bitmap (int radius, CONST int color)
//{
// RawBitmapType bbitmap;
// int x, y, r, c;
// radius /= DIV;
// err = 0.0;
// bbitmap = CreateBitmap ((radius * 2), (radius * 2));
// for (y = 0; y < radius * 2; y++)
// for (x = 0; x < radius * 2; x++)
// {
// if ((x - radius) * (x - radius) + (y - radius) * (y - radius)
// < (radius - 0.5) * (radius - 0.5))
// {
// r = (x - 3 * radius / 4) * (x - 3 * radius / 4) +
// (y - radius / 4) * (y - radius / 4);
// r = r * 32 / (1.5 * radius) / (1.5 * radius);
// if (r > 31)
// r = 31;
// c = errdist (color + r);
// BSetPixel (bbitmap, x, y, c);
// }
// else
// {
// err = 0.0;
// BSetPixel (bbitmap, x, y, 0);
// }
// }
// return (CompileBitmap (radius * 2, radius * 2, bbitmap));
//}
//static BitmapType
//draw_reversed_ball_bitmap (int radius, CONST int color)
//{
// RawBitmapType bbitmap;
// int x, y, r, c;
// radius /= DIV;
// err = 0.0;
// bbitmap = CreateBitmap ((radius * 2), (radius * 2));
// for (y = 0; y < radius * 2; y++)
// for (x = 0; x < radius * 2; x++)
// {
// if ((x - radius) * (x - radius) + (y - radius) * (y - radius)
// < (radius - 0.5) * (radius - 0.5))
// {
// r = (x - 3 * radius / 4) * (x - 3 * radius / 4) +
// (y - radius / 4) * (y - radius / 4);
// r = r * 32 / (1.5 * radius) / (1.5 * radius);
// if (r > 31)
// r = 31;
// c = errdist (color + 16 + r / 2);
// BSetPixel (bbitmap, x, y, c);
// }
// else
// {
// err = 0.0;
// BSetPixel (bbitmap, x, y, 0);
// }
// }
// return (CompileBitmap (radius * 2, radius * 2, bbitmap));
//}
//static BitmapType
//draw_apple_bitmap (int radius, CONST int color)
//{
// RawBitmapType bitmap;
// int x, y, r, c;
// int radius1;
// radius /= DIV;
// bitmap = CreateBitmap ((radius * 2), (radius * 2));
// err = 0;
// for (y = 0; y < radius * 2; y++)
// for (x = 0; x < radius * 2; x++)
// {
// if (DIV == 2)
// radius1 = radius * (abs (x - radius) / 2 + 25) / 30;
// else
// radius1 = radius * (abs (x - radius) / 2 + 50) / 60;
// if (radius1 > radius)
// radius1 = radius;
// if ((x - radius) * (x - radius) + (y - radius) * (y - radius)
// < ((radius1) * (radius1)))
// {
// r = (x - 3 * radius / 4) * (x - 3 * radius / 4) +
// (y - radius / 4) * (y - radius / 4);
// r = 3 + r * 22 / (1.5 * radius1) / (1.5 * radius1);
// if (r > 31)
// r = 31;
// c = errdist (color + r);
// BSetPixel (bitmap, x, y, c);
// }
// else
// {
// BSetPixel (bitmap, x, y, 0);
// }
// }
// return (CompileBitmap (radius * 2, radius * 2, bitmap));
//}
//#endif
//
//void
//create_bitmap ()
//{
// int x, y, r, po, radius;
//#ifndef NODIRECT
// char hole_data[HOLE_RADIUS * 2][HOLE_RADIUS * 2];
// char ehole_data[HOLE_RADIUS * 2][HOLE_RADIUS * 2];
//#else
// int c;
// RawBitmapType hole_data, ehole_data;
//#endif
// printf ("creating bitmaps...\n");
//#ifndef NODIRECT
// for (x = 0; x < HOLE_RADIUS * 2; x++)
// for (y = 0; y < HOLE_RADIUS * 2; y++)
// {
// if (DIV == 1)
// radius = HOLE_RADIUS / 2 + (int) (atan (fabs (x - HOLE_RADIUS + 0.5) / fabs (y - HOLE_RADIUS + 0.5)) * HOLE_RADIUS / 2) % (HOLE_RADIUS / 2);
// else
// radius = HOLE_RADIUS / 4;
// if ((x - HOLE_RADIUS / DIV) * (x - HOLE_RADIUS / DIV) + (y - HOLE_RADIUS / DIV) * (y - HOLE_RADIUS / DIV)
// < radius * radius)
// {
// r = (x - HOLE_RADIUS / DIV) * (x - HOLE_RADIUS / DIV) +
// (y - HOLE_RADIUS / DIV) * (y - HOLE_RADIUS / DIV);
// r = r * 24 / HOLE_SIZE_MAX;
// if (r > 23)
// r = 23;
// hole_data[x][y] = 64 + r + 1;
// ehole_data[x][y] = 128 + r + 1;
// }
// else
// hole_data[x][y] = 0,
// ehole_data[x][y] = 0;
// }
// hole_bitmap = (CompileBitmap (HOLE_RADIUS * 2, HOLE_RADIUS * 2, (char *) hole_data));
// ehole_bitmap = (CompileBitmap (HOLE_RADIUS * 2, HOLE_RADIUS * 2, (char *) ehole_data));
//#else
// ehole_data = CreateBitmap ((HOLE_RADIUS * 2), (HOLE_RADIUS * 2));
// hole_data = CreateBitmap ((HOLE_RADIUS * 2), (HOLE_RADIUS * 2));
// err = 0;
// for (x = 0; x < HOLE_RADIUS * 2; x++)
// for (y = 0; y < HOLE_RADIUS * 2; y++)
// {
// if (DIV == 1)
// radius = HOLE_RADIUS / 2 + (int) (atan (fabs (x - HOLE_RADIUS + 0.5) / fabs (y - HOLE_RADIUS + 0.5)) * HOLE_RADIUS / 2) % (HOLE_RADIUS / 2);
// else
// radius = HOLE_RADIUS / 4;
// if ((x - HOLE_RADIUS / DIV) * (x - HOLE_RADIUS / DIV) + (y - HOLE_RADIUS / DIV) * (y - HOLE_RADIUS / DIV)
// < radius * radius)
// {
// r = (x - HOLE_RADIUS / DIV) * (x - HOLE_RADIUS / DIV) +
// (y - HOLE_RADIUS / DIV) * (y - HOLE_RADIUS / DIV);
// r = r * 24 / HOLE_SIZE_MAX;
// if (r > 23)
// r = 23;
// c = errdist (64 + r + 1);
// BSetPixel (hole_data, x, y, c);
// c = errdist (128 + r + 1);
// BSetPixel (ehole_data, x, y, c);
// }
// else
// {
// BSetPixel (hole_data, x, y, 0);
// BSetPixel (ehole_data, x, y, 0);
// }
// }
// ehole_bitmap = (CompileBitmap ((HOLE_RADIUS * 2), (HOLE_RADIUS * 2), ehole_data));
// hole_bitmap = (CompileBitmap (HOLE_RADIUS * 2, HOLE_RADIUS * 2, hole_data));
//#endif
//
// for (po = 0; po < MAXROCKETS; po++)
// {
// eye_bitmap[po] = draw_ball_bitmap (EYE_RADIUS, 32 + 32 * po);
// }
// ball_bitmap = draw_ball_bitmap (BALL_RADIUS, ball (0));
// mouse_bitmap = draw_ball_bitmap (MOUSE_RADIUS * DIV, 32 + 32 * 2);
// bball_bitmap = draw_ball_bitmap (BBALL_RADIUS, 4 * 32);
// apple_bitmap = draw_apple_bitmap (APPLE_RADIUS, ball (0));
// inspector_bitmap = draw_ball_bitmap (INSPECTOR_RADIUS, 160);
// lunatic_bitmap = draw_reversed_ball_bitmap (LUNATIC_RADIUS, 192);
// lball_bitmap[0] = draw_ball_bitmap (BALL_RADIUS, 4 * 32);
// lball_bitmap[1] = draw_ball_bitmap (BALL_RADIUS, 5 * 32);
// lball_bitmap[2] = draw_reversed_ball_bitmap (BALL_RADIUS, 192);
// lball_bitmap[3] = draw_reversed_ball_bitmap (BALL_RADIUS, 0);
// lball_bitmap[4] = draw_reversed_ball_bitmap (BALL_RADIUS, 3 * 32 - 5);
// /* lball_bitmap[5] = draw_reversed_ball_bitmap (BALL_RADIUS, 4 * 32 - 5);*/
//
// for (x = 0; x < 5; x++)
// rocket_bitmap[x] = draw_ball_bitmap (ROCKET_RADIUS, rocketcolor[x]);
//
//
//
//}
void
create_bitmap ()
{
int x, y, r, po, radius;
//#ifndef NODIRECT
if ((hole_bitmap = SDL_CreateRGBSurface(SDL_HWSURFACE | SDL_RLEACCEL | SDL_SRCCOLORKEY, (HOLE_RADIUS * 2 / DIV), (HOLE_RADIUS * 2 / DIV), physicalscreen->format->BitsPerPixel,
physicalscreen->format->Rmask, physicalscreen->format->Gmask, physicalscreen->format->Bmask, physicalscreen->format->Amask)) == NULL)
printf("create_bitmap() framebuffer.c error"), exit (-1);
if ((ehole_bitmap = SDL_CreateRGBSurface(SDL_HWSURFACE | SDL_RLEACCEL | SDL_SRCCOLORKEY,(HOLE_RADIUS * 2 / DIV), (HOLE_RADIUS * 2 / DIV), physicalscreen->format->BitsPerPixel,
physicalscreen->format->Rmask, physicalscreen->format->Gmask, physicalscreen->format->Bmask, physicalscreen->format->Amask)) == NULL)
printf("create_bitmap() framebuffer.c error"), exit (-1);
if SDL_MUSTLOCK(hole_bitmap)
SDL_LockSurface(hole_bitmap);
// This code looks a lil' wacky.. - DKS
// The original code made a bitmap twice as big as it needed
// for cases where DIV = 2. let's assume they meant otherwise
// char hole_data[HOLE_RADIUS * 2][HOLE_RADIUS * 2];
// char ehole_data[HOLE_RADIUS * 2][HOLE_RADIUS * 2];
//#else
int c;
//RawBitmapType hole_data, ehole_data;
//#endif
printf ("creating bitmaps...\n");
//#ifndef NODIRECT
for (x = 0; x < HOLE_RADIUS * 2 / DIV; x++)
for (y = 0; y < HOLE_RADIUS * 2 / DIV; y++)
{
if (DIV == 1)
radius = HOLE_RADIUS / 2 + (int) (atan (fabs (x - HOLE_RADIUS + 0.5) / fabs (y - HOLE_RADIUS + 0.5)) * HOLE_RADIUS / 2) % (HOLE_RADIUS / 2);
else
radius = HOLE_RADIUS / 4;
if ((x - HOLE_RADIUS / DIV) * (x - HOLE_RADIUS / DIV) + (y - HOLE_RADIUS / DIV) * (y - HOLE_RADIUS / DIV)
< radius * radius)
{
r = (x - HOLE_RADIUS / DIV) * (x - HOLE_RADIUS / DIV) +
(y - HOLE_RADIUS / DIV) * (y - HOLE_RADIUS / DIV);
r = r * 24 / HOLE_SIZE_MAX;
if (r > 23)
r = 23;
// hole_data[x][y] = 64 + r + 1;
// ehole_data[x][y] = 128 + r + 1;
SSetPixel(hole_bitmap, x, y, 64 + r + 1);
}
else
SSetPixel(hole_bitmap, x, y, 0);
// hole_data[x][y] = 0,
// ehole_data[x][y] = 0;
}
if SDL_MUSTLOCK(hole_bitmap)
SDL_UnlockSurface(hole_bitmap);
if SDL_MUSTLOCK(ehole_bitmap)
SDL_LockSurface(ehole_bitmap);
for (x = 0; x < HOLE_RADIUS * 2 / DIV; x++)
for (y = 0; y < HOLE_RADIUS * 2 / DIV; y++)
{
if (DIV == 1)
radius = HOLE_RADIUS / 2 + (int) (atan (fabs (x - HOLE_RADIUS + 0.5) / fabs (y - HOLE_RADIUS + 0.5)) * HOLE_RADIUS / 2) % (HOLE_RADIUS / 2);
else
radius = HOLE_RADIUS / 4;
if ((x - HOLE_RADIUS / DIV) * (x - HOLE_RADIUS / DIV) + (y - HOLE_RADIUS / DIV) * (y - HOLE_RADIUS / DIV)
< radius * radius)
{
r = (x - HOLE_RADIUS / DIV) * (x - HOLE_RADIUS / DIV) +
(y - HOLE_RADIUS / DIV) * (y - HOLE_RADIUS / DIV);
r = r * 24 / HOLE_SIZE_MAX;
if (r > 23)
r = 23;
// hole_data[x][y] = 64 + r + 1;
// ehole_data[x][y] = 128 + r + 1;
SSetPixel(ehole_bitmap, x, y, 128 + r + 1);
}
else
SSetPixel(ehole_bitmap, x, y, 0);
// hole_data[x][y] = 0,
// ehole_data[x][y] = 0;
}
if SDL_MUSTLOCK(ehole_bitmap)
SDL_UnlockSurface(ehole_bitmap);
#ifdef SDL32BPP
SDL_SetColorKey(hole_bitmap, SDL_RLEACCEL | SDL_SRCCOLORKEY, colors_RGBA[0]);
SDL_SetColorKey(ehole_bitmap, SDL_RLEACCEL | SDL_SRCCOLORKEY, colors_RGBA[0]);
#else
SDL_SetColorKey(hole_bitmap, SDL_RLEACCEL | SDL_SRCCOLORKEY, colors_16bit[0]);
SDL_SetColorKey(ehole_bitmap, SDL_RLEACCEL | SDL_SRCCOLORKEY, colors_16bit[0]);
#endif
// hole_bitmap = (CompileBitmap (HOLE_RADIUS * 2, HOLE_RADIUS * 2, (char *) hole_data));
// ehole_bitmap = (CompileBitmap (HOLE_RADIUS * 2, HOLE_RADIUS * 2, (char *) ehole_data));
//#else
// ehole_data = CreateBitmap ((HOLE_RADIUS * 2), (HOLE_RADIUS * 2));
// hole_data = CreateBitmap ((HOLE_RADIUS * 2), (HOLE_RADIUS * 2));
// err = 0;
// for (x = 0; x < HOLE_RADIUS * 2; x++)
// for (y = 0; y < HOLE_RADIUS * 2; y++)
// {
// if (DIV == 1)
// radius = HOLE_RADIUS / 2 + (int) (atan (fabs (x - HOLE_RADIUS + 0.5) / fabs (y - HOLE_RADIUS + 0.5)) * HOLE_RADIUS / 2) % (HOLE_RADIUS / 2);
// else
// radius = HOLE_RADIUS / 4;
// if ((x - HOLE_RADIUS / DIV) * (x - HOLE_RADIUS / DIV) + (y - HOLE_RADIUS / DIV) * (y - HOLE_RADIUS / DIV)
// < radius * radius)
// {
// r = (x - HOLE_RADIUS / DIV) * (x - HOLE_RADIUS / DIV) +
// (y - HOLE_RADIUS / DIV) * (y - HOLE_RADIUS / DIV);
// r = r * 24 / HOLE_SIZE_MAX;
// if (r > 23)
// r = 23;
// c = errdist (64 + r + 1);
// BSetPixel (hole_data, x, y, c);
// c = errdist (128 + r + 1);
// BSetPixel (ehole_data, x, y, c);
// }
// else
// {
// BSetPixel (hole_data, x, y, 0);
// BSetPixel (ehole_data, x, y, 0);
// }
// }
// ehole_bitmap = (CompileBitmap ((HOLE_RADIUS * 2), (HOLE_RADIUS * 2), ehole_data));
// hole_bitmap = (CompileBitmap (HOLE_RADIUS * 2, HOLE_RADIUS * 2, hole_data));
//#endif
for (po = 0; po < MAXROCKETS; po++)
{
eye_bitmap[po] = draw_ball_bitmap (EYE_RADIUS, 32 + 32 * po);
}
ball_bitmap = draw_ball_bitmap (BALL_RADIUS, ball (0));
mouse_bitmap = draw_ball_bitmap (MOUSE_RADIUS * DIV, 32 + 32 * 2);
bball_bitmap = draw_ball_bitmap (BBALL_RADIUS, 4 * 32);
apple_bitmap = draw_apple_bitmap (APPLE_RADIUS, ball (0));
inspector_bitmap = draw_ball_bitmap (INSPECTOR_RADIUS, 160);
lunatic_bitmap = draw_reversed_ball_bitmap (LUNATIC_RADIUS, 192);
lball_bitmap[0] = draw_ball_bitmap (BALL_RADIUS, 4 * 32);
lball_bitmap[1] = draw_ball_bitmap (BALL_RADIUS, 5 * 32);
lball_bitmap[2] = draw_reversed_ball_bitmap (BALL_RADIUS, 192);
lball_bitmap[3] = draw_reversed_ball_bitmap (BALL_RADIUS, 0);
lball_bitmap[4] = draw_reversed_ball_bitmap (BALL_RADIUS, 3 * 32 - 5);
/* lball_bitmap[5] = draw_reversed_ball_bitmap (BALL_RADIUS, 4 * 32 - 5);*/
for (x = 0; x < 5; x++)
rocket_bitmap[x] = draw_ball_bitmap (ROCKET_RADIUS, rocketcolor[x]);
}
// Modified - DKS
#ifndef SDL32BPP
static void
createbackground ()
// DKS - just can't get this to work, color 41 will suffice.
{
//
///* Create fancy dark red background */
// int x, y;
//
//
////DKS - new
// Uint8 tmp_bitmap[MAPWIDTH * (MAPHEIGHT + 20)];
//
// // Lock surface for direct access
// if SDL_MUSTLOCK(background)
// SDL_LockSurface(background);
//
// for (y = 0; y < MAPHEIGHT + 20; y++)
// for (x = 0; x < MAPWIDTH; x++)
// {
// int i = 0;
// int n = 0;
// int c;
// if (x > 0)
// {
// //DKS
// //i += SGetPixel (tmp_surface, x - 1, y);
// i += tmp_bitmap[(x - 1) + (y * MAPWIDTH)];
// n++;
// }
// if (y > 0)
// {
// //DKS
// //i += SGetPixel (tmp_surface, x, y - 1);
// i += tmp_bitmap[ x + ((y - 1) * MAPWIDTH)];
// n++;
// }
// c = (i + (rand () % 16)) / (n + 1);
// //DEBUG printf("c: %d\b", c);
// if (c > 9)
// c = 9;
// //DKS
// //SSetPixel (tmp_surface, x, y, back (0) + c);
// tmp_bitmap[ x + (y * MAPWIDTH)] = (Uint8) (back (0) + c);
// }
//
// //DKS - new
// for (y = 0; y < MAPHEIGHT + 20; y++)
// for (x = 0; x < MAPWIDTH; x++)
// {
// //DEBUG printf("%d\n", tmp_bitmap[x + (y * MAPWIDTH)]);
// SSetPixel (background, x, y, tmp_bitmap[x + (y * MAPWIDTH)]);
// //SSetPixel (background, x, y, 41);
// }
//
// if SDL_MUSTLOCK(background)
// SDL_UnlockSurface(background);
//
// SDL_SetColorKey(background, 0, 0);
//#ifdef GCW
// SDL_FillRect(background, NULL, colors_RGBA[41]);
//#else
// Generic ugly blue background for 16bpp platforms.. When I get to doing another 16bpp port, I'll adapt the
// plasma code below this #ifdef to work on 16bpp too..
SDL_FillRect(background, NULL, colors_16bit[41]);
//#endif
}
#else
// On 32BPP SDL platforms, we'll do a fancy palette-rotating plasma background to spice things up:
static unsigned int palette[256];
static void generate_palette(void)
{
unsigned int value = 0;
for (int i = 0; i < 128; i++) {
palette[i] = ((value>>1) << 16) ^ (value>>1); // magenta
value += 1;
}
for (int i=128; i < 256; i++) {
palette[i] = ((value>>1) << 16) ^ (value>>1); // magenta
value -= 1;
}
}
#define Plasma_SSetPixel(passed_surface, x, y, color) (((Uint32 *)(passed_surface->pixels))[ ( (y) * passed_surface->w ) + (x) ] = (Uint32) (color))
// pretty plasma-generating routine by DKS:
static void
createbackground ()
{
const int w = background->w;
const int h = background->h;
generate_palette();
if SDL_MUSTLOCK(background)
SDL_LockSurface(background);
srand(time(NULL));
int circle_centerx = rand() % w;
int circle_centery = rand() % h;
int circle_centerx2 = rand() % w;
int circle_centery2 = rand() % h;
int circle_centerx3 = rand() % w;
int circle_centery3 = rand() % h;
float circle_freq = rand() % 30 + 25;
float circle_freq2 = rand() % 30 + 35;
float circle_freq3 = rand() % 30 + 45;
for(int y = 0; y < h; y++)
for(int x = 0; x < w; x++)
{
unsigned int color = (int)(
+ 128.0 + (128.0 * cos(sqrt((x - circle_centerx) * (x - circle_centerx) + (y - circle_centery) * (y - circle_centery)) / circle_freq))
+ 128.0 + (128.0 * cos(sqrt((x - circle_centerx2) * (x - circle_centerx2) + (y - circle_centery2) * (y - circle_centery2)) / circle_freq2))
+ 128.0 + (128.0 * cos(sqrt((x - circle_centerx3) * (x - circle_centerx3) + (y - circle_centery3) * (y - circle_centery3)) / circle_freq3))
) / 3;
color &= 0xFF;
unsigned int color32 = (color << 16 ^ color );
Plasma_SSetPixel(background, x, y, color32);
}
if SDL_MUSTLOCK(background)
SDL_UnlockSurface(background);
}
void copybackground(SDL_Surface *src, SDL_Surface *dest)
{
const float idx_increment = 1.0; // how much palette changes each call
static float palette_idx = 0;
unsigned int local_palette[256];
if ((int)palette_idx > 255)
palette_idx = 0;
unsigned int local_idx = (int)palette_idx;
for (unsigned int ctr = 0; ctr < 256; ctr++) {
if (local_idx > 255)
local_idx = 0;
local_palette[ctr] = palette[local_idx++];
}
if SDL_MUSTLOCK(src)
SDL_LockSurface(src);
if SDL_MUSTLOCK(dest)
SDL_LockSurface(dest);
unsigned int *srcpixel = src->pixels;
unsigned int *dstpixel = dest->pixels;
unsigned int srcw = src->w;
unsigned int srch = src->h;
for (int y = 0; y < srch; y++)
for (int x = 0; x < srcw; x++) {
*dstpixel++ = local_palette[(*srcpixel++) & 0xFF];
}
palette_idx += idx_increment;
if SDL_MUSTLOCK(src)
SDL_UnlockSurface(src);
if SDL_MUSTLOCK(dest)
SDL_UnlockSurface(dest);
}
#endif
//DKS
void drawbottom_bar()
{
if (bottom_bar) {
// SDL_FillRect(bottom_bar, NULL, 0xFF000000);
#ifdef SDL32BPP
SDL_FillRect(bottom_bar, NULL, SDL_MapRGBA(physicalscreen->format,0,0,0,255));
#else
SDL_FillRect(bottom_bar, NULL, SDL_MapRGB(physicalscreen->format,0,0,0));
#endif
SDL_SetAlpha(bottom_bar, SDL_SRCALPHA, 170);
SDL_Rect dest_rect = {.x=0, .y=MAPHEIGHT, .w=320, .h=320-MAPHEIGHT};
SDL_BlitSurface(bottom_bar, NULL, physicalscreen, &dest_rect);
}
}
void
drawbackground ()
{ /*int i; */
/* Build up background from map data */
//DKS
//SetScreen (background);
//ClearScreen ();
createbackground ();
//EnableClipping ();
// //DKS
// //Line (0, MAPHEIGHT, MAPWIDTH - 1, MAPHEIGHT, back (16));
//
// Line (background, 0, MAPHEIGHT, MAPWIDTH - 1, MAPHEIGHT, back (16));
//DisableClipping ();
}
//DKS - modified
void
drawstarbackground ()
{
/* Create fancy dark red background */
int x;
int x1, y1, c1;
/* DKS
SetScreen (starbackground);
ClearScreen ();
*/
ClearScreen(starbackground);
// lock surface for pixel access
if SDL_MUSTLOCK(starbackground)
SDL_LockSurface(starbackground);
for (x = 0; x < 700 / DIV / DIV; x++)
{
x1 = rand () % MAPWIDTH;
y1 = rand () % (MAPHEIGHT + 20);
c1 = rand () % 32 + 192;
SSetPixel (starbackground, x1, y1, c1);
}
// unlock surface
if SDL_MUSTLOCK(starbackground)
SDL_UnlockSurface(starbackground);
}