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d3d9 renderer should now match glDepthRange more closely, hopefully.

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git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5238 fc73d0e0-1445-4013-8a0c-d673dee63da5
This commit is contained in:
Spoike 2018-04-09 06:10:38 +00:00
parent a1ff8a9f3c
commit 1490d00793
1 changed files with 54 additions and 17 deletions
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71
engine/d3d/d3d_backend.c
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@ -174,8 +174,8 @@ typedef struct
int curvertdecl;
unsigned int shaderbits;
unsigned int curcull;
float depthbias;
float depthfactor;
polyoffset_t curpolyoffset;
float gltod3d_depthunit; //multiplier to convert from gl's depthunit notches to d3d's range values
float m_model[16];
unsigned int lastpasscount;
vbo_t *batchvbo;
@ -654,6 +654,45 @@ void D3D9BE_Reset(qboolean before)
/*force all state to change, thus setting a known state*/
shaderstate.shaderbits = ~0;
BE_ApplyShaderBits(0);
shaderstate.gltod3d_depthunit = 1.0/((1u<<16) - 1u); //erk, panic.
{
IDirect3DSurface9 *surf = NULL;
D3DSURFACE_DESC desc = {D3DFMT_D16};
if (SUCCEEDED(IDirect3DDevice9_GetDepthStencilSurface(pD3DDev9, &surf)))
{
IDirect3DSurface9_GetDesc(surf, &desc);
IDirect3DSurface9_Release(surf);
switch(desc.Format)
{
case D3DFMT_D15S1:
shaderstate.gltod3d_depthunit = 1.0/((1u<<15) - 1u);
break;
case D3DFMT_D16_LOCKABLE:
case D3DFMT_D16:
shaderstate.gltod3d_depthunit = 1.0/((1u<<24) - 1u);
break;
case D3DFMT_D24S8:
case D3DFMT_D24X8:
case D3DFMT_D24X4S4:
shaderstate.gltod3d_depthunit = 1.0/((1u<<24) - 1u);
break;
default:
case D3DFMT_D32:
shaderstate.gltod3d_depthunit = 1.0/(quint32_t)(-1);
break;
//floating point depth formats are just messy as heck.
//I guess the definition issue here is more with opengl, and I don't know what it would say for 1 'notch', so lets just go by mantissa size.
case D3DFMT_D24FS8: //20e4
shaderstate.gltod3d_depthunit = 1.0/((1u<<20) - 1u);
break;
case D3DFMT_D32F_LOCKABLE: //23e8s1
shaderstate.gltod3d_depthunit = 1.0/((1u<<23) - 1u);
break;
}
}
}
}
}
@ -2383,32 +2422,30 @@ static void BE_DrawMeshChain_Internal(void)
unsigned int passno = 0;
shaderpass_t *pass;
shader_t *useshader = shaderstate.curshader;
float pushdepth = shaderstate.curshader->polyoffset.factor;
// float pushfactor;
polyoffset_t po = shaderstate.curshader->polyoffset;
#ifdef BEF_PUSHDEPTH
if (shaderstate.flags & BEF_PUSHDEPTH)
{
extern cvar_t r_polygonoffset_submodel_factor;
pushdepth += r_polygonoffset_submodel_factor.value;
extern cvar_t r_polygonoffset_submodel_factor, r_polygonoffset_submodel_offset;
po.factor += r_polygonoffset_submodel_factor.value;
po.unit += r_polygonoffset_submodel_offset.value;
}
#endif
pushdepth /= 0xffff;
D3D9BE_Cull(shaderstate.curshader->flags & (SHADER_CULL_FRONT | SHADER_CULL_BACK));
if (pushdepth != shaderstate.depthbias)
if (po.factor != shaderstate.curpolyoffset.factor)
{
shaderstate.depthbias = pushdepth;
IDirect3DDevice9_SetRenderState(pD3DDev9, D3DRS_DEPTHBIAS, *(DWORD*)&shaderstate.depthbias);
shaderstate.curpolyoffset.factor = po.factor;
IDirect3DDevice9_SetRenderState(pD3DDev9, D3DRS_SLOPESCALEDEPTHBIAS, *(DWORD*)&po.factor);
}
if (po.unit != shaderstate.curpolyoffset.unit)
{
shaderstate.curpolyoffset.unit = po.unit;
po.unit *= shaderstate.gltod3d_depthunit;
IDirect3DDevice9_SetRenderState(pD3DDev9, D3DRS_DEPTHBIAS, *(DWORD*)&po.unit);
}
// pushdepth = shaderstate.curshader->polyoffset.unit/-1;// + ((shaderstate.flags & BEF_PUSHDEPTH)?8:0);
// pushfactor = shaderstate.curshader->polyoffset.factor/-1;
// if (pushfactor != shaderstate.depthfactor)
// {
// shaderstate.depthfactor = pushfactor;
// IDirect3DDevice9_SetRenderState(pD3DDev9, D3DRS_SLOPESCALEDEPTHBIAS, *(DWORD*)&shaderstate.depthfactor);
// }
switch (shaderstate.mode)
{