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rendersw: fix apparent bug in draw_quad_palette16_add

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hap 2024-11-18 22:27:32 +01:00
parent 8057df088a
commit fa14f782ae
1 changed files with 15 additions and 9 deletions
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24
src/emu/rendersw.hxx
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@ -577,7 +577,6 @@ private:
}
//**************************************************************************
// RECT RASTERIZERS
//**************************************************************************
@ -765,7 +764,8 @@ private:
//-------------------------------------------------
// draw_quad_palette16_add - perform
// rasterization of a 16bpp palettized texture
// rasterization by using RGB add after 16bpp
// conversion
//-------------------------------------------------
static void draw_quad_palette16_add(render_primitive const &prim, PixelType *dstdata, u32 pitch, quad_setup_data const &setup)
@ -787,7 +787,7 @@ private:
// loop over cols
for (s32 x = setup.startx; x < setup.endx; x++)
{
const u32 pix = get_texel_palette16(prim.texture, curu, curv);
u32 const pix = get_texel_palette16(prim.texture, curu, curv);
if ((pix & 0xffffff) != 0)
{
u32 const dpix = NoDestRead ? 0 : *dest;
@ -834,17 +834,17 @@ private:
r = (r | -(r >> (8 - SrcShiftR))) & (0xff >> SrcShiftR);
g = (g | -(g >> (8 - SrcShiftG))) & (0xff >> SrcShiftG);
b = (b | -(b >> (8 - SrcShiftB))) & (0xff >> SrcShiftB);
*dest++ = dest_assemble_rgb(r, g, b);
curu += setup.dudx;
curv += setup.dvdx;
*dest = dest_assemble_rgb(r, g, b);
}
dest++;
curu += setup.dudx;
curv += setup.dvdx;
}
}
}
}
//**************************************************************************
// 16-BIT YUY RASTERIZERS
//**************************************************************************
@ -976,6 +976,7 @@ private:
r = (r | -(r >> (8 - SrcShiftR))) & (0xff >> SrcShiftR);
g = (g | -(g >> (8 - SrcShiftG))) & (0xff >> SrcShiftG);
b = (b | -(b >> (8 - SrcShiftB))) & (0xff >> SrcShiftB);
*dest++ = dest_assemble_rgb(r, g, b);
curu += setup.dudx;
curv += setup.dvdx;
@ -1002,14 +1003,15 @@ private:
// loop over cols
for (s32 x = setup.startx; x < setup.endx; x++)
{
const u32 pix = ycc_to_rgb(get_texel_yuy16(prim.texture, curu, curv));
const u32 dpix = NoDestRead ? 0 : *dest;
u32 const pix = ycc_to_rgb(get_texel_yuy16(prim.texture, curu, curv));
u32 const dpix = NoDestRead ? 0 : *dest;
u32 r = ((source32_r(pix) * sr * sa) >> 16) + dest_r(dpix);
u32 g = ((source32_g(pix) * sg * sa) >> 16) + dest_g(dpix);
u32 b = ((source32_b(pix) * sb * sa) >> 16) + dest_b(dpix);
r = (r | -(r >> (8 - SrcShiftR))) & (0xff >> SrcShiftR);
g = (g | -(g >> (8 - SrcShiftG))) & (0xff >> SrcShiftG);
b = (b | -(b >> (8 - SrcShiftB))) & (0xff >> SrcShiftB);
*dest++ = dest_assemble_rgb(r, g, b);
curu += setup.dudx;
curv += setup.dvdx;
@ -1225,6 +1227,7 @@ private:
r = (r | -(r >> (8 - SrcShiftR))) & (0xff >> SrcShiftR);
g = (g | -(g >> (8 - SrcShiftG))) & (0xff >> SrcShiftG);
b = (b | -(b >> (8 - SrcShiftB))) & (0xff >> SrcShiftB);
*dest++ = dest_assemble_rgb(r, g, b);
curu += setup.dudx;
curv += setup.dvdx;
@ -1245,6 +1248,7 @@ private:
r = (r | -(r >> (8 - SrcShiftR))) & (0xff >> SrcShiftR);
g = (g | -(g >> (8 - SrcShiftG))) & (0xff >> SrcShiftG);
b = (b | -(b >> (8 - SrcShiftB))) & (0xff >> SrcShiftB);
*dest++ = dest_assemble_rgb(r, g, b);
curu += setup.dudx;
curv += setup.dvdx;
@ -1284,6 +1288,7 @@ private:
r = (r | -(r >> (8 - SrcShiftR))) & (0xff >> SrcShiftR);
g = (g | -(g >> (8 - SrcShiftG))) & (0xff >> SrcShiftG);
b = (b | -(b >> (8 - SrcShiftB))) & (0xff >> SrcShiftB);
*dest++ = dest_assemble_rgb(r, g, b);
curu += setup.dudx;
curv += setup.dvdx;
@ -1304,6 +1309,7 @@ private:
r = (r | -(r >> (8 - SrcShiftR))) & (0xff >> SrcShiftR);
g = (g | -(g >> (8 - SrcShiftG))) & (0xff >> SrcShiftG);
b = (b | -(b >> (8 - SrcShiftB))) & (0xff >> SrcShiftB);
*dest++ = dest_assemble_rgb(r, g, b);
curu += setup.dudx;
curv += setup.dvdx;