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Fixed and simplified setup of source and destination pitch.

This commit is contained in:
Volker Ruppert 2021-07-06 09:08:12 +00:00
parent 4bf3b23983
commit e17539861c
1 changed files with 27 additions and 31 deletions
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58
bochs/iodev/display/banshee.cc
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@ -1157,26 +1157,37 @@ void bx_banshee_c::blt_reg_write(Bit8u reg, Bit32u value)
case blt_dstBaseAddr:
BLT.dst_base = BLT.reg[reg] & v->fbi.mask;
BLT.dst_tiled = BLT.reg[reg] >> 31;
BLT.dst_pitch = BLT.reg[blt_dstFormat] & 0x3fff;
if (BLT.dst_tiled) {
BLT.dst_pitch *= 128;
BLT.dst_pitch = (BLT.reg[blt_dstFormat] & 0x7f) << 7;
} else {
BLT.dst_pitch = BLT.reg[blt_dstFormat] & 0x3fff;
}
break;
case blt_dstFormat:
BLT.dst_fmt = (BLT.reg[reg] >> 16) & 0x07;
BLT.dst_pitch = BLT.reg[reg] & 0x3fff;
if (BLT.dst_tiled) {
BLT.dst_pitch *= 128;
BLT.dst_pitch = (BLT.reg[reg] & 0x7f) << 7;
} else {
BLT.dst_pitch = BLT.reg[reg] & 0x3fff;
}
break;
case blt_srcBaseAddr:
BLT.src_base = BLT.reg[reg] & v->fbi.mask;
BLT.src_tiled = BLT.reg[reg] >> 31;
if (BLT.src_tiled) {
BLT.src_pitch = (BLT.reg[blt_srcFormat] & 0x7f) << 7;
} else {
BLT.src_pitch = BLT.reg[blt_srcFormat] & 0x3fff;
}
break;
case blt_srcFormat:
BLT.src_fmt = (BLT.reg[reg] >> 16) & 0x0f;
BLT.src_pitch = BLT.reg[reg] & 0x3fff;
BLT.src_swizzle = (BLT.reg[reg] >> 20) & 0x03;
if (BLT.src_tiled) {
BLT.src_pitch = (BLT.reg[reg] & 0x7f) << 7;
} else {
BLT.src_pitch = BLT.reg[reg] & 0x3fff;
}
break;
case blt_pattern0Alias:
BLT.cpat[0][0] = value & 0xff;
@ -1347,13 +1358,13 @@ void bx_banshee_c::blt_launch_area_setup()
if (BLT.src_fmt == 0) {
for (int i = 0; i < BLT.dst_h; i++) {
pbytes += ((((BLT.dst_w + pxstart + 7) >> 3) + 3) & ~3);
pxstart += (Bit8u)(BLT.src_pitch << 3);
pxstart += (Bit8u)(BLT.reg[blt_srcFormat] << 3);
pxstart &= 0x1f;
}
} else {
for (int i = 0; i < BLT.dst_h; i++) {
pbytes += ((BLT.dst_w * pxsize + pxstart + 3) & ~3);
pxstart += (Bit8u)BLT.src_pitch;
pxstart += (Bit8u)BLT.reg[blt_srcFormat];
pxstart &= 0x03;
}
}
@ -1885,9 +1896,7 @@ void bx_banshee_c::blt_screen_to_screen()
return;
}
BX_LOCK(render_mutex);
if (BLT.src_tiled) {
spitch = BLT.src_pitch * 128;
} else if ((BLT.src_fmt == 0) && (pxpack == 1)) {
if ((BLT.src_fmt == 0) && (pxpack == 1)) {
spitch = (BLT.dst_w + 7) / 8;
} else {
spitch = BLT.src_pitch;
@ -1969,7 +1978,7 @@ void bx_banshee_c::blt_screen_to_screen_pattern()
Bit8u *pat_ptr = &BLT.cpat[0][0];
Bit8u *src_ptr1, *dst_ptr1, *pat_ptr1, *pat_ptr2 = NULL;
int dpxsize = (BLT.dst_fmt > 1) ? (BLT.dst_fmt - 1) : 1;
int spitch;
int spitch = BLT.src_pitch;
int dpitch = BLT.dst_pitch;
bool patmono = (BLT.reg[blt_command] >> 13) & 1;
bool patrow0 = (BLT.reg[blt_commandExtra] & 0x08) > 0;
@ -1994,11 +2003,6 @@ void bx_banshee_c::blt_screen_to_screen_pattern()
return;
}
BX_LOCK(render_mutex);
if (BLT.src_tiled) {
spitch = BLT.src_pitch * 128;
} else {
spitch = BLT.src_pitch;
}
if (BLT.x_dir) {
dpxsize *= -1;
}
@ -2072,9 +2076,11 @@ void bx_banshee_c::blt_screen_to_screen_stretch()
Bit8u *dst_ptr = &v->fbi.ram[BLT.dst_base];
Bit8u *src_ptr1, *dst_ptr1;
Bit8u dpxsize = (BLT.dst_fmt > 1) ? (BLT.dst_fmt - 1) : 1;
int spitch = BLT.src_pitch;
int dpitch = BLT.dst_pitch;
Bit8u colorkey_en = BLT.reg[blt_commandExtra] & 3;
Bit8u rop = 0;
int spitch, dpitch, nrows, stepy;
int nrows, stepy;
int dx, dy, x2, x3, y2, y3, w0, h0, w1, h1;
double fx, fy;
@ -2088,16 +2094,6 @@ void bx_banshee_c::blt_screen_to_screen_stretch()
BX_ERROR(("Pixel format conversion not supported yet"));
}
BX_LOCK(render_mutex);
if (BLT.src_tiled) {
spitch = BLT.src_pitch * 128;
} else {
spitch = BLT.src_pitch;
}
if (BLT.dst_tiled) {
dpitch = BLT.dst_pitch * 128;
} else {
dpitch = BLT.dst_pitch;
}
if (BLT.y_dir) {
spitch *= -1;
dpitch *= -1;
@ -2254,11 +2250,11 @@ void bx_banshee_c::blt_host_to_screen()
src_ptr += spitch;
if (pxpack == 0) {
if (srcfmt == 0) {
xs += (Bit8u)(BLT.src_pitch << 3);
xs += (Bit8u)(BLT.reg[blt_srcFormat] << 3);
xs &= 0x1f;
spitch = ((((w + xs + 7) >> 3) + 3) & ~3);
} else {
xs += (Bit8u)BLT.src_pitch;
xs += (Bit8u)BLT.reg[blt_srcFormat];
xs &= 0x03;
spitch = ((w * spxsize + xs + 3) & ~3);
}
@ -2388,11 +2384,11 @@ void bx_banshee_c::blt_host_to_screen_pattern()
src_ptr += spitch;
if (pxpack == 0) {
if (srcfmt == 0) {
xs += (Bit8u)(BLT.src_pitch << 3);
xs += (Bit8u)(BLT.reg[blt_srcFormat] << 3);
xs &= 0x1f;
spitch = ((((w + xs + 7) >> 3) + 3) & ~3);
} else {
xs += (Bit8u)BLT.src_pitch;
xs += (Bit8u)BLT.reg[blt_srcFormat];
xs &= 0x03;
spitch = ((w * spxsize + xs + 3) & ~3);
}