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Polygon offset

This commit is contained in:
Jannik Vogel 2015-08-20 16:05:49 +02:00
parent 0edbf5b8c6
commit 9a514dd795
1 changed files with 20 additions and 0 deletions
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20
hw/xbox/nv2a.c
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@ -541,6 +541,8 @@
#define NV_PGRAPH_TEXPALETTE3 0x00001A40
#define NV_PGRAPH_ZSTENCILCLEARVALUE 0x00001A88
#define NV_PGRAPH_ZCLIPMIN 0x00001A90
#define NV_PGRAPH_ZOFFSETBIAS 0x00001AA4
#define NV_PGRAPH_ZOFFSETFACTOR 0x00001AA8
#define NV_PGRAPH_EYEVEC0 0x00001AAC
#define NV_PGRAPH_EYEVEC1 0x00001AB0
#define NV_PGRAPH_EYEVEC2 0x00001AB4
@ -851,6 +853,8 @@
# define NV097_SET_STENCIL_OP_V_INVERT 0x150A
# define NV097_SET_STENCIL_OP_V_INCR 0x8507
# define NV097_SET_STENCIL_OP_V_DECR 0x8508
# define NV097_SET_POLYGON_OFFSET_SCALE_FACTOR 0x00970384
# define NV097_SET_POLYGON_OFFSET_BIAS 0x00970388
# define NV097_SET_FRONT_POLYGON_MODE 0x0097038C
# define NV097_SET_FRONT_POLYGON_MODE_V_POINT 0x1B00
# define NV097_SET_FRONT_POLYGON_MODE_V_LINE 0x1B01
@ -4518,6 +4522,12 @@ static void pgraph_method(NV2AState *d,
kelvin_map_stencil_op(parameter));
break;
case NV097_SET_POLYGON_OFFSET_SCALE_FACTOR:
pg->regs[NV_PGRAPH_ZOFFSETFACTOR] = parameter;
break;
case NV097_SET_POLYGON_OFFSET_BIAS:
pg->regs[NV_PGRAPH_ZOFFSETBIAS] = parameter;
break;
case NV097_SET_FRONT_POLYGON_MODE:
SET_MASK(pg->regs[NV_PGRAPH_SETUPRASTER],
NV_PGRAPH_SETUPRASTER_FRONTFACEMODE,
@ -5248,6 +5258,16 @@ static void pgraph_method(NV2AState *d,
glPolygonMode(GL_FRONT_AND_BACK,
pgraph_polygon_mode_map[front_mode]);
/* Polygon offset */
GLfloat zfactor = *(float*)&pg->regs[NV_PGRAPH_ZOFFSETFACTOR];
GLfloat zbias = *(float*)&pg->regs[NV_PGRAPH_ZOFFSETBIAS];
glEnable(GL_POLYGON_OFFSET_FILL);
glEnable(GL_POLYGON_OFFSET_LINE);
glEnable(GL_POLYGON_OFFSET_POINT);
/* FIXME: Implementation-specific, maybe we should do this in VS? */
glPolygonOffset(zfactor, zbias);
/* Depth testing */
if (depth_test) {
glEnable(GL_DEPTH_TEST);