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Merge pull request #49 from JayFoxRox/polygon-offset 

Polygon offset
This commit is contained in:
espes 2015-09-02 22:03:56 +10:00
parent bb981ab2bb 9a514dd795
commit c1e946a1ef
1 changed files with 27 additions and 0 deletions
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27
hw/xbox/nv2a.c
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@ -453,6 +453,7 @@
#define NV_PGRAPH_SHADERCLIPMODE 0x00001994
#define NV_PGRAPH_SHADERCTL 0x00001998
#define NV_PGRAPH_SHADERPROG 0x0000199C
#define NV_PGRAPH_SHADOWZSLOPETHRESHOLD 0x000019A8
#define NV_PGRAPH_SPECFOGFACTOR0 0x000019AC
#define NV_PGRAPH_SPECFOGFACTOR1 0x000019B0
#define NV_PGRAPH_TEXADDRESS0 0x000019BC
@ -539,6 +540,8 @@
#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
@ -849,6 +852,8 @@
# 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
@ -1056,6 +1061,7 @@
# define NV097_SET_SPECULAR_FOG_FACTOR 0x00971E20
# define NV097_SET_COMBINER_COLOR_OCW 0x00971E40
# define NV097_SET_COMBINER_CONTROL 0x00971E60
# define NV097_SET_SHADOW_ZSLOPE_THRESHOLD 0x00971E68
# define NV097_SET_SHADER_STAGE_PROGRAM 0x00971E70
# define NV097_SET_SHADER_OTHER_STAGE_INPUT 0x00971E78
# define NV097_SET_TRANSFORM_EXECUTION_MODE 0x00971E94
@ -4522,6 +4528,12 @@ 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,
@ -5250,6 +5262,16 @@ 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);
@ -5707,6 +5729,11 @@ static void pgraph_method(NV2AState *d,
pg->regs[NV_PGRAPH_COMBINECTL] = parameter;
break;
case NV097_SET_SHADOW_ZSLOPE_THRESHOLD:
pg->regs[NV_PGRAPH_SHADOWZSLOPETHRESHOLD] = parameter;
assert(parameter == 0x7F800000); /* FIXME: Unimplemented */
break;
case NV097_SET_SHADER_STAGE_PROGRAM:
pg->regs[NV_PGRAPH_SHADERPROG] = parameter;
break;