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return to 555, it is more native for this game and SDL supports it

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Ondřej Novák 2025-02-02 15:31:17 +01:00
parent f8a1501289
commit e717badc45
12 changed files with 67 additions and 76 deletions
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13
libs/bgraph2a.c
View file

@ -120,6 +120,10 @@ void line_32(int x,int y,int xs,int ys)
}
}
static inline word avg_pixels(word a, word b) {
return ((a & 0x7BDE)+(b & 0x7BDE)) >> 1;
}
void char_32(word *posit,const word *font,char znak)
//#pragma aux char_32 parm [edi] [esi] [eax] modify [eax ebx ecx edx]
@ -149,7 +153,7 @@ chr5:
ax = charcolors[(al-1)];
if (ax == 0xFFFF) goto chr4;
if (ax & BGSWITCHBIT) {
ax = ((*ebx & 0xF7DF) + (ax & 0xF7DF)) >> 1;
ax = avg_pixels(*ebx ,ax);
}
*ebx = ax;
goto chr4;
@ -339,7 +343,8 @@ void put_picture(word x,word y,const void *p)
for (i=0;i<yss;i++,adr+=scr_linelen2,data+=(xs-xss))
for (j=0;j<xss;j++)
{
adr[j]=((*data & ~0x1f)<<1) | (*data & 0x1f);
// adr[j]=((*data & ~0x1f)<<1) | (*data & 0x1f);
adr[j]=*data;
data++;
}
}
@ -400,7 +405,7 @@ void get_picture(word x,word y,word xs,word ys,void *p)
data[0]=xss;
data[1]=yss;
data[2]=16;
data[2]=15;
data+=3;
{
int i;
@ -644,7 +649,7 @@ ptb_skip2:
}
}
*/
#define MIXTRANSP(a,b) ((((a) & 0xF7DE)+((b) & 0xF7DE))>>1)
#define MIXTRANSP(a,b) ((((a) & 0x7BDE)+((b) & 0x7BDE))>>1)
void trans_bar(int x,int y,int xs,int ys,int barva)
{

16
libs/mgifmapmem.c
View file

@ -13,14 +13,14 @@ static short mgif_accnums[2];
static int32_t mgif_writepos;
static word *paleta;
static const word *paleta;
static word *picture;
static word *anim_render_buffer;
static void *sound;
static inline word avg_pixels(word a, word b) {
return ((a & 0xF7DE)+(a & 0xF7DE)) >> 1;
return ((a & 0x7BDE)+(b & 0x7BDE)) >> 1;
}
static void StretchImageHQ(word *src, word *trg, int32_t linelen, char full)
@ -86,7 +86,7 @@ static void StretchImageHQ(word *src, word *trg, int32_t linelen, char full)
word n5 = avg_pixels(n1, n2);
word n6 = avg_pixels(n3, n4);
word n7 = avg_pixels(n5, n6);
trg_row[x+linelen] = n7;
trg_row[x+linelen] = avg_pixels(n7,0);
}
trg_row += 2*linelen;
}
@ -167,13 +167,7 @@ void show_delta_lfb12e_dx(void *target,void *buff,void *paleta);
void show_full_lfb12e_dx(void *target,void *buff,void *paleta);
word * load_mgf_palette(const word *pal) {
static word paleta[256];
for (int i = 0; i < 256; ++i) {
paleta[i] = pal[i]+(pal[i]&0x7fe0);
}
return paleta;
}
void BigPlayProc(int act,const void *data,int csize)
{
@ -182,7 +176,7 @@ void BigPlayProc(int act,const void *data,int csize)
case MGIF_LZW:
case MGIF_COPY:show_full_lfb12e(anim_render_buffer,data,paleta);break;
case MGIF_DELTA:show_delta_lfb12e(anim_render_buffer,data,paleta);break;
case MGIF_PAL:paleta=load_mgf_palette(data);break;
case MGIF_PAL:paleta=data;break;
case MGIF_SOUND:
while (LoadNextVideoFrame(sound,data,csize,mgif_header->ampl_table,mgif_accnums,&mgif_writepos)==0);
}

11
libs/music.cpp
View file

@ -24,9 +24,8 @@ public:
iter += 4;
blocks = read_int();
iter += 8;
std::memcpy(btable,iter,sizeof(btable));
iter += sizeof(btable);
btable[0] = -31767;
btable = reinterpret_cast<const short *>(iter);
iter += 512;
}
}
@ -65,7 +64,7 @@ protected:
std::int16_t chans;
std::int32_t freq;
std::int32_t blocks;
short btable[256];
const short *btable;
const uint8_t *iter;
std::vector<int16_t> outbuff;
std::string_view unprocessed_buffer;
@ -96,12 +95,10 @@ protected:
uint8_t p = *iter++;
short val=accum[c]+btable[p];
accum[c]=val;
/*
if (p==0) //pridano jako provizorni reseni pro korekci chyby komprimacniho programu
if (p==0) //a bug in compression algorithm
{
val-=31767;
}
*/
c = (c + 1) % chans;
outbuff.push_back(val);
}

14
libs/pcx.c
View file

@ -68,7 +68,7 @@ void palette_shadow(const char *pal1,unsigned short pal2[][256],int tr,int tg,in
r=(tr+(*(bt++)-tr)*(3*SHADE_STEPS-3*j-1)/(3*SHADE_STEPS-1))>>3;
g=(tg+(*(bt++)-tg)*(3*SHADE_STEPS-3*j-1)/(3*SHADE_STEPS-1))>>3;
b=(tb+(*(bt++)-tb)*(3*SHADE_STEPS-3*j-1)/(3*SHADE_STEPS-1))>>3;
hi=(r<<11)+(g<<6)+b;
hi=RGB555(r,g,b);
pal2[j][i]=hi;
}
while (++i & 0xff);
@ -82,7 +82,7 @@ void palette_shadow(const char *pal1,unsigned short pal2[][256],int tr,int tg,in
r=((*(bt++))*(SHADE_STEPS-j)/SHADE_STEPS)>>3;
g=((*(bt++))*(SHADE_STEPS-j)/SHADE_STEPS)>>3;
b=((*(bt++))*(SHADE_STEPS-j)/SHADE_STEPS)>>3;
hi=(r<<11)+(g<<6)+b;
hi=RGB555(r,g,b);
pal2[j+SHADE_STEPS][i]=hi;
}
while (++i & 0xff);
@ -111,10 +111,12 @@ int load_pcx(const char *pcx,int32_t fsize,int conv_type,char **buffer, ... )
memcpy(get_palette_ptr,ptr1,768);
for (i=0;i<256;i++)
{
*ptr2=*(ptr1++)>>3;
*ptr2=(*ptr2<<5)+(*(ptr1++)>>3);
*ptr2=(*ptr2<<6)+(*(ptr1++)>>3);
ptr2++;
int r = ptr1[0];
int g = ptr1[1];
int b = ptr1[2];
*ptr2 = RGB888(r,g,b);
++ptr2;
ptr1+=3;
}
memcpy(&pcxdata,pcx,sizeof(pcxdata));