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use GetConstantDesc for sampler register index

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This commit is contained in:
Zack Buhman 2025-12-22 22:03:53 -06:00
parent e44f06353f
commit 708235e041
2 changed files with 16 additions and 5 deletions
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19
main.cpp
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@ -32,6 +32,7 @@ IDirect3DVertexShader9 * g_pVertexShader = NULL;
ID3DXConstantTable * g_pPixelConstantTable = NULL;
IDirect3DPixelShader9 * g_pPixelShader = NULL;
IDirect3DTexture9 * g_pTexture = NULL;
D3DXCONSTANT_DESC g_TextureConstDesc;
IDirectInput8 * g_pDI = NULL;
IDirectInputDevice8 * g_pdiDevice;
@ -154,10 +155,11 @@ void Render()
g_pd3dDevice->SetVertexShader(g_pVertexShader);
g_pd3dDevice->SetPixelShader(g_pPixelShader);
g_pd3dDevice->SetTexture(0, g_pTexture);
g_pd3dDevice->SetSamplerState(0, D3DSAMP_MINFILTER, D3DTEXF_POINT);
g_pd3dDevice->SetSamplerState(0, D3DSAMP_ADDRESSU, D3DTADDRESS_CLAMP);
g_pd3dDevice->SetSamplerState(0, D3DSAMP_ADDRESSV, D3DTADDRESS_CLAMP);
UINT registerIndex = g_TextureConstDesc.RegisterIndex;
g_pd3dDevice->SetTexture(registerIndex, g_pTexture);
g_pd3dDevice->SetSamplerState(registerIndex, D3DSAMP_MINFILTER, D3DTEXF_POINT);
g_pd3dDevice->Setsamplerstate(registerIndex, D3DSAMP_ADDRESSU, D3DTADDRESS_CLAMP);
g_pd3dDevice->SetSamplerState(registerIndex, D3DSAMP_ADDRESSV, D3DTADDRESS_CLAMP);
g_pd3dDevice->SetStreamSource(0, g_pVB, 0, (sizeof (CUSTOMVERTEX)));
g_pd3dDevice->DrawPrimitive(D3DPT_TRIANGLELIST, 0, 1);
@ -420,6 +422,15 @@ int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PWSTR pCmdLine
return res;
}
D3DXHANDLE handle;
handle = g_pPixelConstantTable->GetConstantByName(NULL, "BearTextureSampler");
assert(handle != NULL);
UINT count;
g_pPixelConstantTable->GetConstantDesc(handle, &g_TextureConstDesc, &count);
assert(g_TextureConstDesc.RegisterSet = D3DXRS_SAMPLER);
assert(count == 1);
//////////////////////////////////////////////////////////////////////
// texture
//////////////////////////////////////////////////////////////////////

2
main.psh
View File

@ -1,4 +1,4 @@
sampler2D BearTextureSampler;
sampler BearTextureSampler;
struct VS_OUTPUT
{