int FULLSCREEN_SetMode(int width, int height, int bpp)
{
SCREENMODEBLOCK smb;
_kernel_swi_regs regs;
smb.flags = 1;
smb.x_pixels = width;
smb.y_pixels = height;
smb.mode_vars[0] = -1;
switch(bpp)
{
case 8:
smb.pixel_depth = 3;
smb.mode_vars[0] = 0; smb.mode_vars[1] = 128;
smb.mode_vars[2] = 3; smb.mode_vars[3] = 255;
smb.mode_vars[4] = -1;
break;
case 15:
case 16:
smb.pixel_depth = 4;
break;
case 32:
smb.pixel_depth = 5;
break;
default:
SDL_SetError("Pixel depth not supported");
return 0;
break;
}
smb.frame_rate = -1;
regs.r[0] = 0;
regs.r[1] = (int)&smb;
if (_kernel_swi(OS_ScreenMode, ®s, ®s) != 0)
{
SDL_SetError("Couldn't set requested mode");
return 0;
}
_kernel_oswrch(23);_kernel_oswrch(1);_kernel_oswrch(0);
_kernel_oswrch(0);_kernel_oswrch(0);_kernel_oswrch(0);
_kernel_oswrch(0);_kernel_oswrch(0);_kernel_oswrch(0);
_kernel_oswrch(0);_kernel_oswrch(0);
return 1;
}
int FULLSCREEN_SetMode(int width, int height, int bpp)
{
SCREENMODEBLOCK smb;
_kernel_swi_regs regs;
smb.flags = 1;
smb.x_pixels = width;
smb.y_pixels = height;
smb.mode_vars[0] = -1;
switch(bpp)
{
case 8:
smb.pixel_depth = 3;
/* Note: Need to set ModeFlags to 128 and NColour variables to 255 get full 8 bit palette */
smb.mode_vars[0] = 0; smb.mode_vars[1] = 128; /* Mode flags */
smb.mode_vars[2] = 3; smb.mode_vars[3] = 255; /* NColour (number of colours -1) */
smb.mode_vars[4] = -1; /* End of list */
break;
case 15:
case 16:
smb.pixel_depth = 4;
break;
case 32:
smb.pixel_depth = 5;
break;
default:
SDL_SetError("Pixel depth not supported");
return 0;
break;
}
smb.frame_rate = -1;
regs.r[0] = 0;
regs.r[1] = (int)&smb;
if (_kernel_swi(OS_ScreenMode, ®s, ®s) != 0)
{
SDL_SetError("Couldn't set requested mode");
return 0;
}
/* Turn cursor off*/
_kernel_oswrch(23);_kernel_oswrch(1);_kernel_oswrch(0);
_kernel_oswrch(0);_kernel_oswrch(0);_kernel_oswrch(0);
_kernel_oswrch(0);_kernel_oswrch(0);_kernel_oswrch(0);
_kernel_oswrch(0);_kernel_oswrch(0);
return 1;
}
static void FULLSCREEN_UpdateRectsOS(_THIS, int numrects, SDL_Rect *rects)
{
_kernel_swi_regs regs;
_kernel_oserror *err;
int j;
int y;
regs.r[0] = 28 + 512;
regs.r[1] = (unsigned int)this->hidden->alloc_bank;
regs.r[2] = (unsigned int)this->hidden->alloc_bank+16;
regs.r[5] = 0;
for (j = 0; j < numrects; j++)
{
y = this->screen->h - rects->y;
_kernel_oswrch(24);
_kernel_oswrch((rects->x << this->hidden->xeig) & 0xFF);
_kernel_oswrch(((rects->x << this->hidden->xeig) >> 8) & 0xFF);
_kernel_oswrch(((y - rects->h) << this->hidden->yeig) & 0xFF);
_kernel_oswrch((((y - rects->h) << this->hidden->yeig)>> 8) & 0xFF);
_kernel_oswrch(((rects->x + rects->w - 1) << this->hidden->xeig) & 0xFF);
_kernel_oswrch((((rects->x + rects->w - 1)<< this->hidden->xeig) >> 8) & 0xFF);
_kernel_oswrch(((y-1) << this->hidden->yeig) & 0xFF);
_kernel_oswrch((((y-1) << this->hidden->yeig) >> 8) & 0xFF);
regs.r[3] = 0;
regs.r[4] = 0;
if ((err = _kernel_swi(OS_SpriteOp, ®s, ®s)) != 0)
{
printf("OS_SpriteOp failed \n%s\n",err->errmess);
}
rects++;
_kernel_oswrch(24);
_kernel_oswrch(0);
_kernel_oswrch(0);
_kernel_oswrch(0);
_kernel_oswrch(0);
_kernel_oswrch(((this->screen->w-1) << this->hidden->xeig) & 0xFF);
_kernel_oswrch((((this->screen->w-1) << this->hidden->xeig) >> 8) & 0xFF);
_kernel_oswrch(((this->screen->h-1) << this->hidden->yeig) & 0xFF);
_kernel_oswrch((((this->screen->h-1) << this->hidden->yeig) >> 8) & 0xFF);
}
}
//-----------------------------------------------------------------------------
//
// R_DrawPlanes
// At the end of each frame.
//
void R_DrawPlanes(void)
{
int i;
visplane_t *pl;
#ifdef RANGECHECK
if (ds_p > &drawsegs[MAXDRAWSEGS])
I_Error ("R_DrawPlanes: drawsegs overflow (%i)",
ds_p - drawsegs);
if (lastvisplane > &visplanes[MAXVISPLANES])
I_Error ("R_DrawPlanes: visplane overflow (%i)",
lastvisplane - visplanes);
if (lastopening > &openings[MAXOPENINGS])
I_Error ("R_DrawPlanes: opening overflow (%i)",
lastopening - openings);
#endif
if (showrplanestats)
{
#ifdef __riscos
extern void _kernel_oswrch (int);
_kernel_oswrch (31);
_kernel_oswrch (0);
_kernel_oswrch (0);
#endif
printf ("Drawsegs = %u/%u, Visplanes = %u/%u, Openings = %u/%u\n",
ds_p - drawsegs, MAXDRAWSEGS,
lastvisplane - visplanes, MAXVISPLANES,
lastopening - openings, MAXOPENINGS);
}
for (pl = visplanes ; pl < lastvisplane ; pl++)
{
if (pl->minx <= pl->maxx)
{
int picnum = pl->picnum;
// sky flat
if (picnum == skyflatnum || (picnum & PL_SKYFLAT))
{
int x;
int texture;
int offset;
angle_t an, flip;
rpatch_t *tex_patch;
// killough 10/98: allow skies to come from sidedefs.
// Allows scrolling and/or animated skies, as well as
// arbitrary multiple skies per level without having
// to use info lumps.
an = viewangle;
if (picnum & PL_SKYFLAT)
{
// Sky Linedef
const line_t *l = &lines[picnum & ~PL_SKYFLAT];
// Sky transferred from first sidedef
const side_t *s = *l->sidenum + sides;
// Texture comes from upper texture of reference sidedef
texture = texturetranslation[s->toptexture];
// Horizontal offset is turned into an angle offset,
// to allow sky rotation as well as careful positioning.
// However, the offset is scaled very small, so that it
// allows a long-period of sky rotation.
an += s->textureoffset;
// Vertical offset allows careful sky positioning.
dc_texturemid = s->rowoffset - 28 * FRACUNIT;
// We sometimes flip the picture horizontally.
//
// DOOM always flipped the picture, so we make it optional,
// to make it easier to use the new feature, while to still
// allow old sky textures to be used.
flip = l->special==272 ? 0u : ~0u;
}
else // Normal DOOM sky, only one allowed per level
{
dc_texturemid = skytexturemid; // Default y-offset
texture = skytexture; // Default texture
flip = 0; // DOOM flips it
}
// Sky is always drawn full bright,
// i.e. colormaps[0] is used.
// Because of this hack, sky is not affected
// by INVUL inverse mapping.
dc_colormap = (fixedcolormap ? fixedcolormap : colormaps);
dc_ylim = textureheight[texture];
dc_iscale = skyiscale;
tex_patch = R_CacheTextureCompositePatchNum (texture);
offset = skycolumnoffset >> FRACBITS;
for (x = pl->minx; x <= pl->maxx; x++)
{
dc_yl = pl->top[x+1];
dc_yh = pl->bottom[x+1];
if (dc_yl <= dc_yh)
{
dc_x = x;
dc_source = R_GetTextureColumn(tex_patch, (((an + xtoviewangle[x]) ^ flip)
>> ANGLETOSKYSHIFT) + offset);
dc_texturefrac = R_CalcFrac ();
colfunc();
}
}
R_UnlockTextureCompositePatchNum (texture);
}
