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I wish I had something even remotely polite to say about this code.... (nw)

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This commit is contained in:
David Haywood 2013-07-15 18:32:37 +00:00
parent 4254bc0d11
commit 873d0f9c56
2 changed files with 98 additions and 51 deletions
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15
src/mame/includes/konamigx.h
View File

@ -112,10 +112,17 @@ public:
void _gxcommoninitnosprites(running_machine &machine);
void _gxcommoninit(running_machine &machine);
DECLARE_READ32_MEMBER( k_6bpp_rom_long_r );
void konamigx_mixer(running_machine &machine, bitmap_rgb32 &bitmap, const rectangle &cliprect,
tilemap_t *sub1, int sub1flags,
tilemap_t *sub2, int sub2flags,
int mixerflags, bitmap_ind16 *extra_bitmap, int rushingheroes_hack);
void konamigx_mixer (running_machine &machine, bitmap_rgb32 &bitmap, const rectangle &cliprect,tilemap_t *sub1, int sub1flags,tilemap_t *sub2, int sub2flags,int mixerflags, bitmap_ind16 *extra_bitmap, int rushingheroes_hack);
void konamigx_mixer_draw(running_machine &machine, bitmap_rgb32 &bitmap, const rectangle &cliprect,
tilemap_t *sub1, int sub1flags,
tilemap_t *sub2, int sub2flags,
int mixerflags, bitmap_ind16 *extra_bitmap, int rushingheroes_hack,
int flipscreenx, int flipscreeny, int offx, int offy, int wrapsize, int xwraplim, int ywraplim,
struct GX_OBJ *objpool,
int *objbuf,
int nobj
);
void konamigx_esc_alert(UINT32 *srcbase, int srcoffs, int count, int mode);
void konamigx_precache_registers(void);

134
src/mame/video/konamigx.c
View File

@ -876,19 +876,13 @@ void konamigx_state::konamigx_mixer(running_machine &machine, bitmap_rgb32 &bitm
tilemap_t *sub2, int sub2flags,
int mixerflags, bitmap_ind16 *extra_bitmap, int rushingheroes_hack)
{
static const int xoffset[8] = { 0, 1, 4, 5, 16, 17, 20, 21 };
static const int yoffset[8] = { 0, 2, 8, 10, 32, 34, 40, 42 };
static int parity = 0;
int objbuf[GX_MAX_OBJECTS];
int shadowon[3], shdpri[3], layerid[6], layerpri[6];
int flipscreenx, flipscreeny, offx, offy;
struct GX_OBJ *objpool, *objptr;
int wrapsize, xwraplim, ywraplim, cltc_shdpri, /*prflp,*/ disp;
int xa,ya,ox,oy,zw,zh,flipx,flipy,mirrorx,mirrory,zoomx,zoomy,scalex,scaley,nozoom;
int screenwidth, flipscreenx, flipscreeny, offx, offy;
int nobj, i, j, k, l, temp, temp1, temp2, temp3, temp4, count;
int order, offs, code, color, zcode, pri = 0, spri, spri_min, shdprisel, shadow, alpha, drawmode;
// buffer can move when it's resized, so refresh the pointer
gx_objzbuf = &machine.priority_bitmap.pix8(0);
@ -899,7 +893,7 @@ void konamigx_state::konamigx_mixer(running_machine &machine, bitmap_rgb32 &bitm
// clear screen with backcolor and update flicker pulse
K054338_fill_backcolor(machine, bitmap, konamigx_wrport1_0 & 0x20);
parity ^= 1;
// abort if video has been disabled
disp = m_k055555->K055555_read_register(K55_INPUT_ENABLES);
@ -958,6 +952,8 @@ void konamigx_state::konamigx_mixer(running_machine &machine, bitmap_rgb32 &bitm
layerpri[4] = m_k055555->K055555_read_register(K55_PRIINP_9);
layerpri[5] = m_k055555->K055555_read_register(K55_PRIINP_10);
int shdprisel;
if (gx_primode == -1)
{
// Lethal Enforcer hack (requires pixel color comparison)
@ -979,11 +975,14 @@ void konamigx_state::konamigx_mixer(running_machine &machine, bitmap_rgb32 &bitm
shdpri[1] = m_k055555->K055555_read_register(K55_SHAD2_PRI);
shdpri[2] = m_k055555->K055555_read_register(K55_SHAD3_PRI);
spri_min = 0;
int spri_min = 0;
shadowon[2] = shadowon[1] = shadowon[0] = 0;
int k = 0;
if (!(mixerflags & GXMIX_NOSHADOW))
{
int i,j;
// only enable shadows beyond a +/-7 RGB threshold
for (j=0,i=0; i<3; j+=3,i++)
{
@ -993,7 +992,7 @@ void konamigx_state::konamigx_mixer(running_machine &machine, bitmap_rgb32 &bitm
}
// SHDON specifies layers on which shadows can be projected (see detail on p.65 7.2.8)
temp = m_k055555->K055555_read_register(K55_SHD_ON);
int temp = m_k055555->K055555_read_register(K55_SHD_ON);
for (i=0; i<4; i++) if (!(temp>>i & 1) && spri_min < layerpri[i]) spri_min = layerpri[i]; // HACK
// update shadows status
@ -1001,12 +1000,12 @@ void konamigx_state::konamigx_mixer(running_machine &machine, bitmap_rgb32 &bitm
}
// pre-sort layers
for (j=0; j<5; j++)
for (int j=0; j<5; j++)
{
temp1 = layerpri[j];
for (i=j+1; i<6; i++)
int temp1 = layerpri[j];
for (int i=j+1; i<6; i++)
{
temp2 = layerpri[i];
int temp2 = layerpri[i];
if ((UINT32)temp1 <= (UINT32)temp2)
{
layerpri[i] = temp1; layerpri[j] = temp1 = temp2;
@ -1017,11 +1016,13 @@ void konamigx_state::konamigx_mixer(running_machine &machine, bitmap_rgb32 &bitm
// build object database and create indices
objptr = objpool;
nobj = 0;
int nobj = 0;
for (i=5; i>=0; i--)
for (int i=5; i>=0; i--)
{
code = layerid[i];
int offs;
int code = layerid[i];
switch (code)
{
/*
@ -1058,19 +1059,22 @@ void konamigx_state::konamigx_mixer(running_machine &machine, bitmap_rgb32 &bitm
}
}
i = j = 0xff;
// i = j = 0xff;
int l = 0;
for (offs=0; offs<0x800; offs+=8)
for (int offs=0; offs<0x800; offs+=8)
{
int pri = 0;
if (!(gx_spriteram[offs] & 0x8000)) continue;
zcode = gx_spriteram[offs] & 0xff;
int zcode = gx_spriteram[offs] & 0xff;
// invert z-order when opset_pri is set (see p.51 OPSET PRI)
if (k053247_opset & 0x10) zcode = 0xff - zcode;
code = gx_spriteram[offs+1];
color = k = gx_spriteram[offs+6];
int code = gx_spriteram[offs+1];
int color = k = gx_spriteram[offs+6];
l = gx_spriteram[offs+7];
(*k053247_callback)(machine, &code, &color, &pri);
@ -1083,7 +1087,12 @@ void konamigx_state::konamigx_mixer(running_machine &machine, bitmap_rgb32 &bitm
temp3 = add shadow object
temp4 = shadow pens draw mode
*/
temp4 = temp3 = temp2 = temp1 = spri = shadow = 0;
int temp4 = 0;
int temp3 = 0;
int temp2 = 0;
int temp1 = 0;
int spri = 0;
int shadow = 0;
if (color & K055555_FULLSHADOW)
{
@ -1165,7 +1174,7 @@ void konamigx_state::konamigx_mixer(running_machine &machine, bitmap_rgb32 &bitm
if (temp1)
{
// add objects with solid or alpha pens
order = pri<<24 | zcode<<16 | offs<<(8-3) | temp2<<4;
int order = pri<<24 | zcode<<16 | offs<<(8-3) | temp2<<4;
objptr->order = order;
objptr->offs = offs;
objptr->code = code;
@ -1179,7 +1188,7 @@ void konamigx_state::konamigx_mixer(running_machine &machine, bitmap_rgb32 &bitm
if (temp3 && !(color & K055555_SKIPSHADOW) && !(mixerflags & GXMIX_NOSHADOW))
{
// add objects with shadows if enabled
order = spri<<24 | zcode<<16 | offs<<(8-3) | temp4<<4 | shadow;
int order = spri<<24 | zcode<<16 | offs<<(8-3) | temp4<<4 | shadow;
objptr->order = order;
objptr->offs = offs;
objptr->code = code;
@ -1195,24 +1204,58 @@ void konamigx_state::konamigx_mixer(running_machine &machine, bitmap_rgb32 &bitm
k = nobj;
l = nobj - 1;
for (j=0; j<l; j++)
for (int j=0; j<l; j++)
{
temp1 = objbuf[j];
temp2 = objpool[temp1].order;
for (i=j+1; i<k; i++)
int temp1 = objbuf[j];
int temp2 = objpool[temp1].order;
for (int i=j+1; i<k; i++)
{
temp3 = objbuf[i];
temp4 = objpool[temp3].order;
int temp3 = objbuf[i];
int temp4 = objpool[temp3].order;
if ((UINT32)temp2 <= (UINT32)temp4) { temp2 = temp4; objbuf[i] = temp1; objbuf[j] = temp1 = temp3; }
}
}
// traverse draw list
screenwidth = machine.primary_screen->width();
for (count=0; count<nobj; count++)
konamigx_mixer_draw(machine,bitmap,cliprect,sub1,sub1flags,sub2,sub2flags,mixerflags,extra_bitmap,rushingheroes_hack,
flipscreenx, flipscreeny, offx, offy, wrapsize, xwraplim, ywraplim,
objpool,
objbuf,
nobj
);
}
void konamigx_state::konamigx_mixer_draw(running_machine &machine, bitmap_rgb32 &bitmap, const rectangle &cliprect,
tilemap_t *sub1, int sub1flags,
tilemap_t *sub2, int sub2flags,
int mixerflags, bitmap_ind16 *extra_bitmap, int rushingheroes_hack,
/* passed from above function */
int flipscreenx, int flipscreeny, int offx, int offy, int wrapsize, int xwraplim, int ywraplim,
struct GX_OBJ *objpool,
int *objbuf,
int nobj
)
{
static int parity = 0;
parity ^= 1;
static const int xoffset[8] = { 0, 1, 4, 5, 16, 17, 20, 21 };
static const int yoffset[8] = { 0, 2, 8, 10, 32, 34, 40, 42 };
int xa,ya,ox,oy,zw,zh,flipx,flipy,mirrorx,mirrory,zoomx,zoomy,scalex,scaley,nozoom;
int temp, temp1, temp2, temp3, temp4;
int order, offs, code, color, zcode, pri = 0, alpha, drawmode;
// traverse draw list
int screenwidth = machine.primary_screen->width();
int disp = m_k055555->K055555_read_register(K55_INPUT_ENABLES);
for (int count=0; count<nobj; count++)
{
objptr = objpool + objbuf[count];
struct GX_OBJ *objptr = objpool + objbuf[count];
order = objptr->order;
offs = objptr->offs;
code = objptr->code;
@ -1224,9 +1267,9 @@ void konamigx_state::konamigx_mixer(running_machine &machine, bitmap_rgb32 &bitm
}
else
{
i = code<<1;
j = mixerflags>>i & 3;
k = 0;
int i = code<<1;
int j = mixerflags>>i & 3;
int k = 0;
switch (offs)
{
@ -1284,7 +1327,7 @@ void konamigx_state::konamigx_mixer(running_machine &machine, bitmap_rgb32 &bitm
if (temp4 < 255) k = (j == GXMIX_BLEND_FAST) ? ~parity : 1;
}
l = sub1flags & 0xf;
int l = sub1flags & 0xf;
if (offs == -2)
{
@ -1325,7 +1368,7 @@ void konamigx_state::konamigx_mixer(running_machine &machine, bitmap_rgb32 &bitm
if (temp4 < 255) k = (j == GXMIX_BLEND_FAST) ? ~parity : 1;
}
l = sub2flags & 0xf;
int l = sub2flags & 0xf;
if (offs == -3)
{
@ -1449,19 +1492,19 @@ void konamigx_state::konamigx_mixer(running_machine &machine, bitmap_rgb32 &bitm
temp = temp4>>8 & 0x0f;
k = 1 << (temp & 3);
l = 1 << (temp>>2 & 3);
int k = 1 << (temp & 3);
int l = 1 << (temp>>2 & 3);
ox -= (zoomx * k) >> 13;
oy -= (zoomy * l) >> 13;
// substitutes: i=x, j=y, k=w, l=h, temp=code, temp1=fx, temp2=fy, temp3=sx, temp4=sy;
for (j=0; j<l; j++)
for (int j=0; j<l; j++)
{
temp4 = oy + ((zoomy * j + (1<<11)) >> 12);
zh = (oy + ((zoomy * (j+1) + (1<<11)) >> 12)) - temp4;
for (i=0; i<k; i++)
for (int i=0; i<k; i++)
{
temp3 = ox + ((zoomx * i + (1<<11)) >> 12);
zw = (ox + ((zoomx * (i+1) + (1<<11)) >> 12)) - temp3;
@ -1524,9 +1567,6 @@ void konamigx_state::konamigx_mixer(running_machine &machine, bitmap_rgb32 &bitm
}
/* Run and Gun 2 / Rushing Heroes */
TILE_GET_INFO_MEMBER(konamigx_state::get_gx_psac_tile_info)
{