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implement a few more texture rules

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This commit is contained in:
davidhay 2009-05-09 13:52:47 +00:00
parent e3b4a07d07
commit 4796659533
1 changed files with 28 additions and 12 deletions
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40
src/mame/video/dc.c
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@ -93,7 +93,7 @@ typedef struct {
UINT32 paracontrol,paratype,endofstrip,listtype,global_paratype,parameterconfig;
UINT32 groupcontrol,groupen,striplen,userclip;
UINT32 objcontrol,shadow,volume,coltype,texture,offfset,gouraud,uv16bit;
UINT32 textureusize,texturevsize,texturesizes,textureaddress,scanorder,pixelformat;
UINT32 texturesizes,textureaddress,scanorder,pixelformat;
UINT32 blend_mode, srcselect,dstselect,fogcontrol,colorclamp, use_alpha;
UINT32 ignoretexalpha,flipuv,clampuv,filtermode,sstexture,mmdadjust,tsinstruction;
UINT32 depthcomparemode,cullingmode,zwritedisable,cachebypass,dcalcctrl,volumeinstruction,mipmapped,vqcompressed,strideselect,paletteselector;
@ -610,8 +610,10 @@ static void tex_get_info(texinfo *t, pvrta_state *sa)
if (!t->textured) return;
t->address = sa->textureaddress;
t->sizex = sa->textureusize;
t->sizey = sa->texturevsize;
t->mode = sa->scanorder + (sa->vqcompressed<<1);
/* Stride Select only valid when ScanOrder is 1 */
@ -621,7 +623,6 @@ static void tex_get_info(texinfo *t, pvrta_state *sa)
t->mode += (sa->strideselect<<2);
}
t->sizes = sa->texturesizes;
t->pf = sa->pixelformat;
/* Mipmapped is ignored if scanorder is 0 */
@ -634,6 +635,21 @@ static void tex_get_info(texinfo *t, pvrta_state *sa)
t->mipmapped = 0;
}
// Mipmapped textures are always square, ignore v size
if (t->mipmapped)
{
t->sizes = (sa->texturesizes & 0x38) | ((sa->texturesizes & 0x38) >> 3);
}
else
{
t->sizes = sa->texturesizes;
}
t->sizex = 1 << (3+((t->sizes >> 3) & 7));
t->sizey = 1 << (3+(t->sizes & 7));
t->palette = sa->paletteselector;
t->blend_mode = sa->blend_mode;
t->filter_mode = sa->filtermode;
@ -803,28 +819,28 @@ static void tex_get_info(texinfo *t, pvrta_state *sa)
static const int mipmap_4_8_offset[8] = { 0x00018, 0x00058, 0x00158, 0x00558, 0x01558, 0x05558, 0x15558, 0x55558 }; // 4bpp (4bit offset) / 8bpp (8bit offset)
static const int mipmap_np_offset[8] = { 0x00030, 0x000B0, 0x002B0, 0x00AB0, 0x02AB0, 0x0AAB0, 0x2AAB0, 0xAAAB0 }; // nonpalette textures
static const int mipmap_vq_offset[8] = { 0x00006, 0x00016, 0x00056, 0x00156, 0x00556, 0x01556, 0x05556, 0x15556 }; // vq textures
switch (miptype)
{
case 0: // 4bpp
//printf("4bpp\n");
t->address += mipmap_4_8_offset[t->sizes&7]>>1;
t->address += mipmap_4_8_offset[(t->sizes)&7]>>1;
break;
case 1: // 8bpp
//printf("8bpp\n");
t->address += mipmap_4_8_offset[t->sizes&7];
t->address += mipmap_4_8_offset[(t->sizes)&7];
break;
case 2: // nonpalette
//printf("np\n");
t->address += mipmap_np_offset[t->sizes&7];
t->address += mipmap_np_offset[(t->sizes)&7];
break;
case 3: // vq
//printf("vq\n");
t->address += mipmap_vq_offset[t->sizes&7];
t->address += mipmap_vq_offset[(t->sizes)&7];
break;
}
}
@ -1330,8 +1346,8 @@ void process_ta_fifo(running_machine* machine)
state_ta.dcalcctrl=(tafifo_buff[1] >> 20) & 1;
state_ta.volumeinstruction=(tafifo_buff[1] >> 29) & 7;
state_ta.textureusize=1 << (3+((tafifo_buff[2] >> 3) & 7));
state_ta.texturevsize=1 << (3+(tafifo_buff[2] & 7));
//state_ta.textureusize=1 << (3+((tafifo_buff[2] >> 3) & 7));
//state_ta.texturevsize=1 << (3+(tafifo_buff[2] & 7));
state_ta.texturesizes=tafifo_buff[2] & 0x3f;
state_ta.blend_mode = tafifo_buff[2] >> 26;
state_ta.srcselect=(tafifo_buff[2] >> 25) & 1;
@ -1356,7 +1372,7 @@ void process_ta_fifo(running_machine* machine)
state_ta.strideselect=(tafifo_buff[3] >> 25) & 1;
state_ta.paletteselector=(tafifo_buff[3] >> 21) & 0x3F;
#if DEBUG_PVRDLIST
mame_printf_verbose(" Texture %d x %d at %08x format %d\n", state_ta.textureusize, state_ta.texturevsize, (tafifo_buff[3] & 0x1FFFFF) << 3, state_ta.pixelformat);
mame_printf_verbose(" Texture at %08x format %d\n", (tafifo_buff[3] & 0x1FFFFF) << 3, state_ta.pixelformat);
#endif
}
if (state_ta.paratype == 4)