d3dx9: Implement ID3DXSprite_Flush.

dlls/d3dx9_36/sprite.c

@@ -302,10 +302,60 @@ static HRESULT WINAPI ID3DXSpriteImpl_Draw(LPD3DXSPRITE iface, LPDIRECT3DTEXTURE
 static HRESULT WINAPI ID3DXSpriteImpl_Flush(LPD3DXSPRITE iface)
 {
     ID3DXSpriteImpl *This=(ID3DXSpriteImpl*)iface;
+    SPRITEVERTEX *vertices;
     int i;
-    FIXME("(%p): stub\n", This);
+    TRACE("(%p): relay\n", This);
 
     if(!This->ready) return D3DERR_INVALIDCALL;
+    if(!This->sprite_count) return D3D_OK;
+
+/* TODO: use of a vertex buffer here */
+    vertices=HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(SPRITEVERTEX)*4*This->sprite_count);
+
+    for(i=0;i<This->sprite_count;i++) {
+        float spritewidth=(float)This->sprites[i].rect.right-(float)This->sprites[i].rect.left;
+        float spriteheight=(float)This->sprites[i].rect.bottom-(float)This->sprites[i].rect.top;
+
+        vertices[4*i  ].pos.x = This->sprites[i].pos.x - This->sprites[i].center.x;
+        vertices[4*i  ].pos.y = This->sprites[i].pos.y - This->sprites[i].center.y;
+        vertices[4*i  ].pos.z = This->sprites[i].pos.z - This->sprites[i].center.z;
+        vertices[4*i+1].pos.x = spritewidth + This->sprites[i].pos.x - This->sprites[i].center.x;
+        vertices[4*i+1].pos.y = This->sprites[i].pos.y - This->sprites[i].center.y;
+        vertices[4*i+1].pos.z = This->sprites[i].pos.z - This->sprites[i].center.z;
+        vertices[4*i+2].pos.x = spritewidth + This->sprites[i].pos.x - This->sprites[i].center.x;
+        vertices[4*i+2].pos.y = spriteheight + This->sprites[i].pos.y - This->sprites[i].center.y;
+        vertices[4*i+2].pos.z = This->sprites[i].pos.z - This->sprites[i].center.z;
+        vertices[4*i+3].pos.x = This->sprites[i].pos.x - This->sprites[i].center.x;
+        vertices[4*i+3].pos.y = spriteheight + This->sprites[i].pos.y - This->sprites[i].center.y;
+        vertices[4*i+3].pos.z = This->sprites[i].pos.z - This->sprites[i].center.z;
+        vertices[4*i  ].col   = This->sprites[i].color;
+        vertices[4*i+1].col   = This->sprites[i].color;
+        vertices[4*i+2].col   = This->sprites[i].color;
+        vertices[4*i+3].col   = This->sprites[i].color;
+        vertices[4*i  ].tex.x = (float)This->sprites[i].rect.left / (float)This->sprites[i].texw;
+        vertices[4*i  ].tex.y = (float)This->sprites[i].rect.top / (float)This->sprites[i].texh;
+        vertices[4*i+1].tex.x = (float)This->sprites[i].rect.right / (float)This->sprites[i].texw;
+        vertices[4*i+1].tex.y = (float)This->sprites[i].rect.top / (float)This->sprites[i].texh;
+        vertices[4*i+2].tex.x = (float)This->sprites[i].rect.right / (float)This->sprites[i].texw;
+        vertices[4*i+2].tex.y = (float)This->sprites[i].rect.bottom / (float)This->sprites[i].texh;
+        vertices[4*i+3].tex.x = (float)This->sprites[i].rect.left / (float)This->sprites[i].texw;
+        vertices[4*i+3].tex.y = (float)This->sprites[i].rect.bottom / (float)This->sprites[i].texh;
+    }
+
+    D3DXVec3TransformCoordArray(&vertices[0].pos, sizeof(SPRITEVERTEX), &vertices[0].pos, sizeof(SPRITEVERTEX), &This->transform, 4*This->sprite_count);
+    D3DXVec3TransformCoordArray(&vertices[0].pos, sizeof(SPRITEVERTEX), &vertices[0].pos, sizeof(SPRITEVERTEX), &This->view,      4*This->sprite_count);
+
+    IDirect3DDevice9_SetVertexDeclaration(This->device, This->vdecl);
+
+    for(i=0;i<This->sprite_count;i++) {
+        if(!i)
+            IDirect3DDevice9_SetTexture(This->device, 0, (LPDIRECT3DBASETEXTURE9)(This->sprites[i].texture));
+        else if(This->sprites[i].texture!=This->sprites[i-1].texture)
+            IDirect3DDevice9_SetTexture(This->device, 0, (LPDIRECT3DBASETEXTURE9)(This->sprites[i].texture));
+
+        IDirect3DDevice9_DrawPrimitiveUP(This->device, D3DPT_TRIANGLEFAN, 2, vertices+4*i, sizeof(SPRITEVERTEX));
+    }
+    HeapFree(GetProcessHeap(), 0, vertices);
 
     for(i=0;i<This->sprite_count;i++)
         if(This->sprites[i].texture)
@@ -315,7 +365,7 @@ static HRESULT WINAPI ID3DXSpriteImpl_Flush(LPD3DXSPRITE iface)
 
     /* Flush may be called more than once, so we don't reset This->ready here */
 
-    return E_NOTIMPL;
+    return D3D_OK;
 }
 
 static HRESULT WINAPI ID3DXSpriteImpl_End(LPD3DXSPRITE iface)