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Merge pull request #54 from JayFoxRox/dither 

Add dither support
This commit is contained in:
espes 2015-09-06 10:13:03 +10:00
parent af64c017d7 5c017a2367
commit ad8215cfbd
1 changed files with 24 additions and 0 deletions
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24
hw/xbox/nv2a.c
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@ -393,6 +393,7 @@
# define NV_PGRAPH_CONTROL_0_ZFUNC_NOTEQUAL 5
# define NV_PGRAPH_CONTROL_0_ZFUNC_GEQUAL 6
# define NV_PGRAPH_CONTROL_0_ZFUNC_ALWAYS 7
# define NV_PGRAPH_CONTROL_0_DITHERENABLE (1 << 22)
# define NV_PGRAPH_CONTROL_0_ZWRITEENABLE (1 << 24)
# define NV_PGRAPH_CONTROL_0_STENCIL_WRITE_ENABLE (1 << 25)
# define NV_PGRAPH_CONTROL_0_ALPHA_WRITE_ENABLE (1 << 26)
@ -787,6 +788,7 @@
# define NV097_SET_BLEND_ENABLE 0x00970304
# define NV097_SET_CULL_FACE_ENABLE 0x00970308
# define NV097_SET_DEPTH_TEST_ENABLE 0x0097030C
# define NV097_SET_DITHER_ENABLE 0x00970310
# define NV097_SET_LIGHTING_ENABLE 0x00970314
# define NV097_SET_SKIN_MODE 0x00970328
# define NV097_SET_SKIN_MODE_OFF 0
@ -4384,6 +4386,10 @@ static void pgraph_method(NV2AState *d,
SET_MASK(pg->regs[NV_PGRAPH_CONTROL_0], NV_PGRAPH_CONTROL_0_ZENABLE,
parameter);
break;
case NV097_SET_DITHER_ENABLE:
SET_MASK(pg->regs[NV_PGRAPH_CONTROL_0],
NV_PGRAPH_CONTROL_0_DITHERENABLE, parameter);
break;
case NV097_SET_LIGHTING_ENABLE:
SET_MASK(pg->regs[NV_PGRAPH_CSV0_C], NV_PGRAPH_CSV0_C_LIGHTING,
parameter);
@ -5400,6 +5406,15 @@ static void pgraph_method(NV2AState *d,
glDisable(GL_STENCIL_TEST);
}
/* Dither */
/* FIXME: GL implementation dependent */
if (pg->regs[NV_PGRAPH_CONTROL_0] &
NV_PGRAPH_CONTROL_0_DITHERENABLE) {
glEnable(GL_DITHER);
} else {
glDisable(GL_DITHER);
}
pgraph_bind_shaders(pg);
pgraph_bind_textures(d);
@ -5861,6 +5876,15 @@ static void pgraph_method(NV2AState *d,
NV2A_DPRINTF("------------------CLEAR 0x%x %d,%d - %d,%d %x---------------\n",
parameter, xmin, ymin, xmax, ymax, d->pgraph.regs[NV_PGRAPH_COLORCLEARVALUE]);
/* Dither */
/* FIXME: Maybe also disable it here? + GL implementation dependent */
if (pg->regs[NV_PGRAPH_CONTROL_0] &
NV_PGRAPH_CONTROL_0_DITHERENABLE) {
glEnable(GL_DITHER);
} else {
glDisable(GL_DITHER);
}
glClear(gl_mask);
glDisable(GL_SCISSOR_TEST);