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Banshee/Voodoo3: Added 16 bpp to 32 bpp pixel format conversion

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for screen-to-screen bitblt operation (big endian code untested).
This commit is contained in:
Volker Ruppert 2024-09-22 17:05:11 +02:00
parent e1a160e81e
commit 3ca671ca80
1 changed files with 23 additions and 1 deletions
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24
bochs/iodev/display/banshee.cc
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@ -1985,7 +1985,8 @@ void bx_banshee_c::blt_screen_to_screen()
w = BLT.dst_w;
h = BLT.dst_h;
BX_DEBUG(("Screen to screen blt: %d x %d ROP0 %02X", w, h, BLT.rop[0]));
if ((BLT.src_fmt != 0) && (BLT.dst_fmt != BLT.src_fmt)) {
if ((BLT.src_fmt != 0) && (BLT.dst_fmt != BLT.src_fmt) &&
!(BLT.src_fmt == 3 && BLT.dst_fmt == 5)) {
BX_ERROR(("Pixel format conversion not supported yet"));
}
if (!blt_apply_clipwindow(&sx, &sy, &dx, &dy, &w, &h)) {
@ -2059,6 +2060,27 @@ void bx_banshee_c::blt_screen_to_screen()
src_ptr += spitch;
dst_ptr += dpitch;
} while (--nrows);
} else if (BLT.src_fmt == 3 && BLT.dst_fmt == 5) {
int spxsize = 2;
src_ptr += (sy * abs(spitch) + sx * spxsize);
nrows = h;
do {
src_ptr1 = src_ptr;
dst_ptr1 = dst_ptr;
ncols = w;
do {
#ifdef BX_LITTLE_ENDIAN
BLT.rop_fn[0](dst_ptr1, (Bit8u*)&v->fbi.pen[*(Bit16u*)src_ptr1], dpitch, spitch, abs(dpxsize), 1);
#else
Bit32u color32 = bx_bswap32(v->fbi.pen[bx_bswap16(*(Bit16u*)src_ptr1)]);
BLT.rop_fn[0](dst_ptr1, (Bit8u*)&color32, dpitch, spitch, abs(dpxsize), 1);
#endif
src_ptr1 += spxsize;
dst_ptr1 += dpxsize;
} while (--ncols);
src_ptr += spitch;
dst_ptr += dpitch;
} while (--nrows);
} else {
src_ptr += (sy * abs(spitch) + sx * abs(dpxsize) + bkw_adj);
BLT.rop_fn[0](dst_ptr + bkw_adj, src_ptr, dpitch, spitch, w * abs(dpxsize), h);