chacha/glide
1
0
Fork 0
Code Issues Pull Requests Actions Packages Releases Activity

added workaround for 8bit wide texture downloads for old revision TMUs

Browse Source
This commit is contained in:
koolsmoky
2005-04-23 18:33:33 +00:00
parent 0c01d45d7a
commit 881c63f226
1 changed files with 40 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

49
glide2x/cvg/glide/src/gtexdl.c
View File

@@ -19,6 +19,9 @@
**
** $Header$
** $Log$
** Revision 1.2.2.2 2005/01/22 14:52:02 koolsmoky
** enabled packed argb for cmd packet type 3
**
** Revision 1.2.2.1 2004/12/23 20:45:56 koolsmoky
** converted to nasm syntax
** added x86 asm, 3dnow! triangle and mmx, 3dnow! texture download optimizations
@@ -486,10 +489,7 @@ GR_ENTRY(grTexDownloadMipMapLevelPartial,
REG_GROUP_END();
}
#if GLIDE_DISPATCH_DOWNLOAD /* cpu optimized texture downloads */
/* XXX [koolsmoky] need to implement work around for 8bit-wide downloads
* for old revision TMUs.
*/
#if GLIDE_DISPATCH_DOWNLOAD
/* Do the download */
{
const FxU32
@@ -508,11 +508,42 @@ GR_ENTRY(grTexDownloadMipMapLevelPartial,
if (widthSel > 2) widthSel = 3;
_GlideRoot.stats.texBytes += max_s * (max_t - t + 1) * 4;
(*((*_GlideRoot.deviceArchProcs.curTexProcs)[formatSel][widthSel]))(gc,
tmuBaseAddr,
max_s, t, max_t,
data);
if ((sh == 3) && !formatSel && (width > 4)) {
/* 8-bit >4xN texture with Old revision TMUs (GR_SSTTYPE_VOODOO) */
const FxU8* src8 = (const FxU8*)data;
/* Compute Physical Write Pointer */
const FxU32
tmu_baseaddress = (FxU32)gc->tex_ptr +
(((FxU32)tmu) << 21) + (((FxU32)thisLod) << 17);
for (; t <= max_t; t++) {
FxU32
s,
tex_address = tmu_baseaddress + TEX_ROW_ADDR_INCR(t);
LINEAR_WRITE_BEGIN(max_s, kLinearWriteTex,
(FxU32)tex_address - (FxU32)gc->tex_ptr,
0x00UL, 0x00UL);
for (s = 0; s < max_s; s+=2) {
const FxU32 t0 = *(const FxU32*)(src8 );
const FxU32 t1 = *(const FxU32*)(src8 + sizeof(FxU32));
LINEAR_WRITE_SET_8(tex_address , t0);
LINEAR_WRITE_SET_8(tex_address + sizeof(FxU32), t1);
tex_address += 16;
src8 += (sizeof(FxU32) << 1);
}
LINEAR_WRITE_END();
}
} else {
/* GR_SSTTYPE_Voodoo2 all go through here */
(*((*_GlideRoot.deviceArchProcs.curTexProcs)[formatSel][widthSel]))(gc,
tmuBaseAddr,
max_s, t, max_t,
data);
}
}
#else
/*------------------------------------------------------------