----------Surface Creation-------------- DDSURFACEDESC2 ddsd;DXInitStruct(ddsd); // this is the memset/size thingddsd.dwFlags = DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH | DDSD_PIXELFORMAT;ddsd.ddsCaps.dwCaps = DDSCAPS_TEXTURE | DDSCAPS_WRITEONLY;ddsd.ddsCaps.dwCaps2 = DDSCAPS2_D3DTEXTUREMANAGE | DDSCAPS2_OPAQUE; ddsd.ddsCaps.dwCaps3 = 0;ddsd.ddsCaps.dwCaps4 = 0;ddsd.dwHeight = y; ddsd.dwWidth = x;memcpy(&ddsd.ddpfPixelFormat, &textureFormats[chosenTexFormatIndex], sizeof(DDPIXELFORMAT));IDirectDrawSurface7* surfaceData = 0;if (HRESULT res = directDraw->CreateSurface(&ddsd, &surfaceData, NULL)){ logFile << "Failed to create DDraw surface:" << GetDXReturnCode(res) << endl; return 0;}---------Rendering each tile--------------// Positions (vectors) firstconst float LEFT = static_cast<float>(dest.x);const float RIGHT = static_cast<float>(dest.x + dest.w);const float TOP = static_cast<float>(dest.y);const float BOTTOM = static_cast<float>(dest.y + dest.h);const float Z_VAL = 0.1f;const D3DVECTOR tl(LEFT, TOP, Z_VAL);const D3DVECTOR tr(RIGHT, TOP, Z_VAL);const D3DVECTOR bl(LEFT, BOTTOM, Z_VAL);const D3DVECTOR br(RIGHT, BOTTOM, Z_VAL);// Then actual verticesopacity = 1.0;const D3DCOLOR col = D3DRGBA(1.0, 1.0, 1.0, opacity);D3DTLVERTEX spriteVert[4];// Cast from Sprite to D3D7_Spriteconst D3D7_Sprite* d3dSprite = static_cast<const D3D7_Sprite*>(sprite); spriteVert[0] = D3DTLVERTEX(tl, 1, col, col, d3dSprite->u1, d3dSprite->v1); // TLspriteVert[1] = D3DTLVERTEX(tr, 1, col, col, d3dSprite->u2, d3dSprite->v1); // TRspriteVert[2] = D3DTLVERTEX(bl, 1, col, col, d3dSprite->u1, d3dSprite->v2); // BLspriteVert[3] = D3DTLVERTEX(br, 1, col, col, d3dSprite->u2, d3dSprite->v2); // BRHRESULT hr;// makes no differencedevice->SetTextureStageState(0, D3DTSS_COLORARG1, D3DTA_TEXTURE);device->SetTextureStageState(0, D3DTSS_COLOROP, D3DTOP_MODULATE);device->SetTextureStageState(0, D3DTSS_COLORARG2, D3DTA_CURRENT/*D3DTA_DIFFUSE*/);// Allow vertex alpha, and texture alphadevice->SetTextureStageState(0, D3DTSS_ALPHAARG1, D3DTA_TEXTURE);device->SetTextureStageState(0, D3DTSS_ALPHAOP, D3DTOP_MODULATE);device->SetTextureStageState(0, D3DTSS_ALPHAARG2, D3DTA_DIFFUSE);#ifdef DEBUGDWORD passes = -10;hr = device->ValidateDevice(&passes);Log::Get() << "ValidateDevice: " << GetDXReturnCode(hr) << ", passes: " << passes << endl;#endif // DEBUG// Set the appropriate texture// Cast from Surface to D3D7_SurfaceD3D7_Surface* d3dSurface = static_cast<D3D7_Surface*>(d3dSprite->surface);if (!d3dSurface){#ifdef DEBUG Log::Get() << "D3D7_Graphics::Render: d3dSurface is NULL!" << endl;#endif // DEBUG return false;}// This gets the IDirectDrawSurface7* from the D3D7_Surface objectif (FAILED(hr = d3dSurface->GetDDSurface()->IsLost())){#ifdef DEBUG Log::Get() << "D3D7_Graphics::Render: surface->IsLost(): " << GetDXReturnCode(hr) << endl;#endif // DEBUG return false;}// Use that as the textureif (FAILED(hr = device->SetTexture(0, d3dSurface->GetDDSurface()))){#ifdef DEBUG Log::Get() << "D3D7_Graphics::Render: SetTexture: " << GetDXReturnCode(hr) << endl;#endif // DEBUG return false;}// Draw the object using a DrawPrimitive() call.if (FAILED(hr = device->DrawPrimitive(D3DPT_TRIANGLESTRIP, D3DFVF_TLVERTEX, (void*)&spriteVert[0], 4, NULL))){#ifdef DEBUG Log::Get() << "D3D7_Graphics::Render: DrawPrimitive: " << GetDXReturnCode(hr) << endl;#endif // DEBUG return false;}
That''s my drawing and surface creation code. Will post the init code too if the above checks out ok.
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Try them both however this blending op is so basic that I doubt drivers are buggy. I would still create a small dx7 test app just to make sure the rendering logic and flag are set correctly then when the test app passes, compare it to the rendering code in your normal app.
