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25 
26 #include "D3DMaskCache.h"
27 
28 HRESULT
CreateInstance(D3DContext * pCtx,D3DMaskCache ** ppMaskCache)29 D3DMaskCache::CreateInstance(D3DContext *pCtx, D3DMaskCache **ppMaskCache)
30 {
31     HRESULT res;
32 
33     J2dTraceLn(J2D_TRACE_INFO, "D3DMaskCache::CreateInstance");
34 
35     *ppMaskCache = new D3DMaskCache();
36     if (FAILED(res = (*ppMaskCache)->Init(pCtx))) {
37         delete *ppMaskCache;
38         *ppMaskCache = NULL;
39     }
40     return res;
41 }
42 
D3DMaskCache()43 D3DMaskCache::D3DMaskCache()
44 {
45     J2dTraceLn(J2D_TRACE_INFO, "D3DMaskCache::D3DMaskCache");
46     this->pCtx = NULL;
47     maskCacheIndex = 0;
48 }
49 
~D3DMaskCache()50 D3DMaskCache::~D3DMaskCache()
51 {
52     J2dTraceLn(J2D_TRACE_INFO, "D3DMaskCache::~D3DMaskCache");
53     pCtx = NULL;
54     maskCacheIndex = 0;
55 }
56 
57 HRESULT
Init(D3DContext * pCtx)58 D3DMaskCache::Init(D3DContext *pCtx)
59 {
60     J2dTraceLn1(J2D_TRACE_INFO, "D3DMaskCache::Init pCtx=%x", pCtx);
61     this->pCtx = pCtx;
62     this->maskCacheIndex = 0;
63     return S_OK;
64 }
65 
Enable()66 HRESULT D3DMaskCache::Enable()
67 {
68     HRESULT res;
69 
70     J2dTraceLn(J2D_TRACE_INFO, "D3DMaskCache::Enable");
71 
72     D3DResource *pMaskTexRes;
73     res = pCtx->GetResourceManager()->GetMaskTexture(&pMaskTexRes);
74     RETURN_STATUS_IF_FAILED(res);
75 
76     res = pCtx->SetTexture(pMaskTexRes->GetTexture(), 0);
77 
78     IDirect3DDevice9 *pd3dDevice = pCtx->Get3DDevice();
79     D3DTEXTUREFILTERTYPE fhint =
80         pCtx->IsTextureFilteringSupported(D3DTEXF_NONE) ?
81             D3DTEXF_NONE : D3DTEXF_POINT;
82     pd3dDevice->SetSamplerState(0, D3DSAMP_MAGFILTER, fhint);
83     pd3dDevice->SetSamplerState(0, D3DSAMP_MINFILTER, fhint);
84 
85     return res;
86 }
87 
Disable()88 HRESULT D3DMaskCache::Disable()
89 {
90     J2dTraceLn(J2D_TRACE_INFO, "D3DMaskCache::Disable");
91 
92     maskCacheIndex = 0;
93 
94     return pCtx->SetTexture(NULL, 0);
95 }
96 
AddMaskQuad(int srcx,int srcy,int dstx,int dsty,int width,int height,int maskscan,void * mask)97 HRESULT D3DMaskCache::AddMaskQuad(int srcx, int srcy,
98                                   int dstx, int dsty,
99                                   int width, int height,
100                                   int maskscan, void *mask)
101 {
102     HRESULT res;
103     float tx1, ty1, tx2, ty2;
104     float dx1, dy1, dx2, dy2;
105 
106     J2dTraceLn1(J2D_TRACE_INFO, "D3DVertexCacher::AddMaskQuad: %d",
107                 maskCacheIndex);
108 
109     if (maskCacheIndex >= D3D_MASK_CACHE_MAX_INDEX ||
110         pCtx->pVCacher->GetFreeVertices() < 6)
111     {
112         res = pCtx->pVCacher->Render();
113         RETURN_STATUS_IF_FAILED(res);
114         maskCacheIndex = 0;
115     }
116 
117     if (mask != NULL) {
118         int texx = D3D_MASK_CACHE_TILE_WIDTH *
119             (maskCacheIndex % D3D_MASK_CACHE_WIDTH_IN_TILES);
120         int texy = D3D_MASK_CACHE_TILE_HEIGHT *
121             (maskCacheIndex / D3D_MASK_CACHE_WIDTH_IN_TILES);
122         D3DResource *pMaskTexRes;
123 
124         res = pCtx->GetResourceManager()->GetMaskTexture(&pMaskTexRes);
125         RETURN_STATUS_IF_FAILED(res);
126 
127         // copy alpha mask into texture tile
128         pCtx->UploadTileToTexture(pMaskTexRes, mask,
129                                   texx, texy,
130                                   srcx, srcy,
131                                   width, height,
132                                   maskscan,
133                                   TILEFMT_1BYTE_ALPHA);
134 
135         tx1 = ((float)texx) / D3D_MASK_CACHE_WIDTH_IN_TEXELS;
136         ty1 = ((float)texy) / D3D_MASK_CACHE_HEIGHT_IN_TEXELS;
137 
138         maskCacheIndex++;
139     } else {
140         // use special fully opaque tile
141         tx1 = ((float)D3D_MASK_CACHE_SPECIAL_TILE_X) /
142             D3D_MASK_CACHE_WIDTH_IN_TEXELS;
143         ty1 = ((float)D3D_MASK_CACHE_SPECIAL_TILE_Y) /
144             D3D_MASK_CACHE_HEIGHT_IN_TEXELS;
145     }
146 
147     tx2 = tx1 + (((float)width) / D3D_MASK_CACHE_WIDTH_IN_TEXELS);
148     ty2 = ty1 + (((float)height) / D3D_MASK_CACHE_HEIGHT_IN_TEXELS);
149 
150     dx1 = (float)dstx;
151     dy1 = (float)dsty;
152     dx2 = dx1 + width;
153     dy2 = dy1 + height;
154 
155     return pCtx->pVCacher->DrawTexture(dx1, dy1, dx2, dy2,
156                                        tx1, ty1, tx2, ty2);
157 }
158