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video/gticlub.c: Improved texture coordinate rounding (again)

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This commit is contained in:
Ville Linde 2012-09-16 14:35:39 +00:00
parent 24f50df0fb
commit 06c9b3d85f
1 changed files with 8 additions and 14 deletions
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22
src/mame/video/gticlub.c
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@ -601,15 +601,12 @@ static void draw_scanline_2d_tex(void *dest, INT32 scanline, const poly_extent *
for (x = extent->startx; x < extent->stopx; x++)
{
int iu = (int)(u);
int iv = (int)(v);
int iu = (int)(u * 0.0625f);
int iv = (int)(v * 0.0625f);
int iiv, iiu, texel;
int iu2 = (iu >> 4) + ((iu & 0x8) ? 1 : 0);
int iv2 = (iv >> 4) + ((iv & 0x8) ? 1 : 0);
iiu = texture_x + x_mirror_table[iu2 & 0x7f];
iiv = texture_y + y_mirror_table[iv2 & 0x7f];
iiu = texture_x + x_mirror_table[iu & 0x7f];
iiv = texture_y + y_mirror_table[iv & 0x7f];
texel = texrom[((iiv & 0x1ff) * 512) + (iiu & 0x1ff)];
color = K001006_palette[pal_chip][palette_index + texel];
@ -742,14 +739,11 @@ static void draw_scanline_tex(void *dest, INT32 scanline, const poly_extent *ext
int iu, iv;
int iiv, iiu, texel;
iu = u * oow;
iv = v * oow;
iu = u * oow * 0.0625f;
iv = v * oow * 0.0625f;
int iu2 = (iu >> 4) + ((iu & 0x8) ? 1 : 0);
int iv2 = (iv >> 4) + ((iv & 0x8) ? 1 : 0);
iiu = texture_x + x_mirror_table[iu2 & 0x7f];
iiv = texture_y + y_mirror_table[iv2 & 0x7f];
iiu = texture_x + x_mirror_table[iu & 0x7f];
iiv = texture_y + y_mirror_table[iv & 0x7f];
texel = texrom[((iiv & 0x1ff) * 512) + (iiu & 0x1ff)];
color = K001006_palette[pal_chip][palette_index + texel];