wined3d: Only update the screen when the frontbuffer was changed.
[wine] / dlls / wined3d / wined3d_main.c
1 /*
2  * Direct3D wine internal interface main
3  *
4  * Copyright 2002-2003 The wine-d3d team
5  * Copyright 2002-2003 Raphael Junqueira
6  * Copyright 2004      Jason Edmeades
7  * Copyright 2007-2008 Stefan Dösinger for CodeWeavers
8  *
9  * This library is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU Lesser General Public
11  * License as published by the Free Software Foundation; either
12  * version 2.1 of the License, or (at your option) any later version.
13  *
14  * This library is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
17  * Lesser General Public License for more details.
18  *
19  * You should have received a copy of the GNU Lesser General Public
20  * License along with this library; if not, write to the Free Software
21  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22  */
23
24 #include "config.h"
25
26 #include "initguid.h"
27 #include "wined3d_private.h"
28
29 WINE_DEFAULT_DEBUG_CHANNEL(d3d);
30
31 int num_lock = 0;
32 void (*CDECL wine_tsx11_lock_ptr)(void) = NULL;
33 void (*CDECL wine_tsx11_unlock_ptr)(void) = NULL;
34
35
36 /* When updating default value here, make sure to update winecfg as well,
37  * where appropriate. */
38 wined3d_settings_t wined3d_settings = 
39 {
40     VS_HW,          /* Hardware by default */
41     PS_HW,          /* Hardware by default */
42     VBO_HW,         /* Hardware by default */
43     TRUE,           /* Use of GLSL enabled by default */
44     ORM_FBO,        /* Use FBOs to do offscreen rendering */
45     RTL_AUTO,       /* Automatically determine best locking method */
46     PCI_VENDOR_NONE,/* PCI Vendor ID */
47     PCI_DEVICE_NONE,/* PCI Device ID */
48     0,              /* The default of memory is set in FillGLCaps */
49     NULL,           /* No wine logo by default */
50     FALSE           /* Disable multisampling for now due to Nvidia driver bugs which happens for some users */
51 };
52
53 IWineD3D* WINAPI WineDirect3DCreate(UINT dxVersion, IUnknown *parent) {
54     IWineD3DImpl* object;
55
56     object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IWineD3DImpl));
57     object->lpVtbl = &IWineD3D_Vtbl;
58     object->dxVersion = dxVersion;
59     object->ref = 1;
60     object->parent = parent;
61
62     if (!InitAdapters(object))
63     {
64         WARN("Failed to initialize direct3d adapters, Direct3D will not be available\n");
65         if (dxVersion > 7)
66         {
67             ERR("Direct3D%d is not available without opengl\n", dxVersion);
68             HeapFree(GetProcessHeap(), 0, object);
69             return NULL;
70         }
71     }
72
73     TRACE("Created WineD3D object @ %p for d3d%d support\n", object, dxVersion);
74
75     return (IWineD3D *)object;
76 }
77
78 static inline DWORD get_config_key(HKEY defkey, HKEY appkey, const char* name, char* buffer, DWORD size)
79 {
80     if (0 != appkey && !RegQueryValueExA( appkey, name, 0, NULL, (LPBYTE) buffer, &size )) return 0;
81     if (0 != defkey && !RegQueryValueExA( defkey, name, 0, NULL, (LPBYTE) buffer, &size )) return 0;
82     return ERROR_FILE_NOT_FOUND;
83 }
84
85 static inline DWORD get_config_key_dword(HKEY defkey, HKEY appkey, const char* name, DWORD *data)
86 {
87     DWORD type;
88     DWORD size = sizeof(DWORD);
89     if (0 != appkey && !RegQueryValueExA( appkey, name, 0, &type, (LPBYTE) data, &size ) && (type == REG_DWORD)) return 0;
90     if (0 != defkey && !RegQueryValueExA( defkey, name, 0, &type, (LPBYTE) data, &size ) && (type == REG_DWORD)) return 0;
91     return ERROR_FILE_NOT_FOUND;
92 }
93
94 static void CDECL wined3d_do_nothing(void)
95 {
96 }
97
98 static BOOL wined3d_init(HINSTANCE hInstDLL)
99 {
100     HMODULE mod;
101     char buffer[MAX_PATH+10];
102     DWORD size = sizeof(buffer);
103     HKEY hkey = 0;
104     HKEY appkey = 0;
105     DWORD len, tmpvalue;
106     WNDCLASSA wc;
107
108     /* We need our own window class for a fake window which we use to retrieve GL capabilities */
109     /* We might need CS_OWNDC in the future if we notice strange things on Windows.
110      * Various articles/posts about OpenGL problems on Windows recommend this. */
111     wc.style                = CS_HREDRAW | CS_VREDRAW;
112     wc.lpfnWndProc          = DefWindowProcA;
113     wc.cbClsExtra           = 0;
114     wc.cbWndExtra           = 0;
115     wc.hInstance            = hInstDLL;
116     wc.hIcon                = LoadIconA(NULL, (LPCSTR)IDI_WINLOGO);
117     wc.hCursor              = LoadCursorA(NULL, (LPCSTR)IDC_ARROW);
118     wc.hbrBackground        = NULL;
119     wc.lpszMenuName         = NULL;
120     wc.lpszClassName        = WINED3D_OPENGL_WINDOW_CLASS_NAME;
121
122     if (!RegisterClassA(&wc))
123     {
124         ERR("Failed to register window class 'WineD3D_OpenGL'!\n");
125         return FALSE;
126     }
127
128     DisableThreadLibraryCalls(hInstDLL);
129
130     mod = GetModuleHandleA( "winex11.drv" );
131     if (mod)
132     {
133         wine_tsx11_lock_ptr   = (void *)GetProcAddress( mod, "wine_tsx11_lock" );
134         wine_tsx11_unlock_ptr = (void *)GetProcAddress( mod, "wine_tsx11_unlock" );
135     }
136     else /* We are most likely on Windows */
137     {
138         wine_tsx11_lock_ptr   = wined3d_do_nothing;
139         wine_tsx11_unlock_ptr = wined3d_do_nothing;
140     }
141     /* @@ Wine registry key: HKCU\Software\Wine\Direct3D */
142     if ( RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\Direct3D", &hkey ) ) hkey = 0;
143
144     len = GetModuleFileNameA( 0, buffer, MAX_PATH );
145     if (len && len < MAX_PATH)
146     {
147         HKEY tmpkey;
148         /* @@ Wine registry key: HKCU\Software\Wine\AppDefaults\app.exe\Direct3D */
149         if (!RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\AppDefaults", &tmpkey ))
150         {
151             char *p, *appname = buffer;
152             if ((p = strrchr( appname, '/' ))) appname = p + 1;
153             if ((p = strrchr( appname, '\\' ))) appname = p + 1;
154             strcat( appname, "\\Direct3D" );
155             TRACE("appname = [%s]\n", appname);
156             if (RegOpenKeyA( tmpkey, appname, &appkey )) appkey = 0;
157             RegCloseKey( tmpkey );
158         }
159     }
160
161     if ( 0 != hkey || 0 != appkey )
162     {
163         if ( !get_config_key( hkey, appkey, "VertexShaderMode", buffer, size) )
164         {
165             if (!strcmp(buffer,"none"))
166             {
167                 TRACE("Disable vertex shaders\n");
168                 wined3d_settings.vs_mode = VS_NONE;
169             }
170         }
171         if ( !get_config_key( hkey, appkey, "PixelShaderMode", buffer, size) )
172         {
173             if (!strcmp(buffer,"enabled"))
174             {
175                 TRACE("Allow pixel shaders\n");
176                 wined3d_settings.ps_mode = PS_HW;
177             }
178             if (!strcmp(buffer,"disabled"))
179             {
180                 TRACE("Disable pixel shaders\n");
181                 wined3d_settings.ps_mode = PS_NONE;
182             }
183         }
184         if ( !get_config_key( hkey, appkey, "VertexBufferMode", buffer, size) )
185         {
186             if (!strcmp(buffer,"none"))
187             {
188                 TRACE("Disable Vertex Buffer Hardware support\n");
189                 wined3d_settings.vbo_mode = VBO_NONE;
190             }
191             else if (!strcmp(buffer,"hardware"))
192             {
193                 TRACE("Allow Vertex Buffer Hardware support\n");
194                 wined3d_settings.vbo_mode = VBO_HW;
195             }
196         }
197         if ( !get_config_key( hkey, appkey, "UseGLSL", buffer, size) )
198         {
199             if (!strcmp(buffer,"disabled"))
200             {
201                 TRACE("Use of GL Shading Language disabled\n");
202                 wined3d_settings.glslRequested = FALSE;
203             }
204         }
205         if ( !get_config_key( hkey, appkey, "OffscreenRenderingMode", buffer, size) )
206         {
207             if (!strcmp(buffer,"backbuffer"))
208             {
209                 TRACE("Using the backbuffer for offscreen rendering\n");
210                 wined3d_settings.offscreen_rendering_mode = ORM_BACKBUFFER;
211             }
212             else if (!strcmp(buffer,"pbuffer"))
213             {
214                 TRACE("Using PBuffers for offscreen rendering\n");
215                 wined3d_settings.offscreen_rendering_mode = ORM_PBUFFER;
216             }
217             else if (!strcmp(buffer,"fbo"))
218             {
219                 TRACE("Using FBOs for offscreen rendering\n");
220                 wined3d_settings.offscreen_rendering_mode = ORM_FBO;
221             }
222         }
223         if ( !get_config_key( hkey, appkey, "RenderTargetLockMode", buffer, size) )
224         {
225             if (!strcmp(buffer,"disabled"))
226             {
227                 TRACE("Disabling render target locking\n");
228                 wined3d_settings.rendertargetlock_mode = RTL_DISABLE;
229             }
230             else if (!strcmp(buffer,"readdraw"))
231             {
232                 TRACE("Using glReadPixels for render target reading and glDrawPixels for writing\n");
233                 wined3d_settings.rendertargetlock_mode = RTL_READDRAW;
234             }
235             else if (!strcmp(buffer,"readtex"))
236             {
237                 TRACE("Using glReadPixels for render target reading and textures for writing\n");
238                 wined3d_settings.rendertargetlock_mode = RTL_READTEX;
239             }
240             else if (!strcmp(buffer,"texdraw"))
241             {
242                 TRACE("Using textures for render target reading and glDrawPixels for writing\n");
243                 wined3d_settings.rendertargetlock_mode = RTL_TEXDRAW;
244             }
245             else if (!strcmp(buffer,"textex"))
246             {
247                 TRACE("Reading render targets via textures and writing via textures\n");
248                 wined3d_settings.rendertargetlock_mode = RTL_TEXTEX;
249             }
250         }
251         if ( !get_config_key_dword( hkey, appkey, "VideoPciDeviceID", &tmpvalue) )
252         {
253             int pci_device_id = tmpvalue;
254
255             /* A pci device id is 16-bit */
256             if(pci_device_id > 0xffff)
257             {
258                 ERR("Invalid value for VideoPciDeviceID. The value should be smaller or equal to 65535 or 0xffff\n");
259             }
260             else
261             {
262                 TRACE("Using PCI Device ID %04x\n", pci_device_id);
263                 wined3d_settings.pci_device_id = pci_device_id;
264             }
265         }
266         if ( !get_config_key_dword( hkey, appkey, "VideoPciVendorID", &tmpvalue) )
267         {
268             int pci_vendor_id = tmpvalue;
269
270             /* A pci device id is 16-bit */
271             if(pci_vendor_id > 0xffff)
272             {
273                 ERR("Invalid value for VideoPciVendorID. The value should be smaller or equal to 65535 or 0xffff\n");
274             }
275             else
276             {
277                 TRACE("Using PCI Vendor ID %04x\n", pci_vendor_id);
278                 wined3d_settings.pci_vendor_id = pci_vendor_id;
279             }
280         }
281         if ( !get_config_key( hkey, appkey, "VideoMemorySize", buffer, size) )
282         {
283             int TmpVideoMemorySize = atoi(buffer);
284             if(TmpVideoMemorySize > 0)
285             {
286                 wined3d_settings.emulated_textureram = TmpVideoMemorySize *1024*1024;
287                 TRACE("Use %iMB = %d byte for emulated_textureram\n",
288                         TmpVideoMemorySize,
289                         wined3d_settings.emulated_textureram);
290             }
291             else
292                 ERR("VideoMemorySize is %i but must be >0\n", TmpVideoMemorySize);
293         }
294         if ( !get_config_key( hkey, appkey, "WineLogo", buffer, size) )
295         {
296             wined3d_settings.logo = HeapAlloc(GetProcessHeap(), 0, strlen(buffer) + 1);
297             if(wined3d_settings.logo) strcpy(wined3d_settings.logo, buffer);
298         }
299         if ( !get_config_key( hkey, appkey, "Multisampling", buffer, size) )
300         {
301             if (!strcmp(buffer,"enabled"))
302             {
303                 TRACE("Allow multisampling\n");
304                 wined3d_settings.allow_multisampling = TRUE;
305             }
306         }
307     }
308     if (wined3d_settings.vs_mode == VS_HW)
309         TRACE("Allow HW vertex shaders\n");
310     if (wined3d_settings.ps_mode == PS_NONE)
311         TRACE("Disable pixel shaders\n");
312     if (wined3d_settings.vbo_mode == VBO_NONE)
313         TRACE("Disable Vertex Buffer Hardware support\n");
314     if (wined3d_settings.glslRequested)
315         TRACE("If supported by your system, GL Shading Language will be used\n");
316
317     if (appkey) RegCloseKey( appkey );
318     if (hkey) RegCloseKey( hkey );
319
320     return TRUE;
321 }
322
323 static BOOL wined3d_destroy(HINSTANCE hInstDLL)
324 {
325     HeapFree(GetProcessHeap(), 0, wined3d_settings.logo);
326     UnregisterClassA(WINED3D_OPENGL_WINDOW_CLASS_NAME, hInstDLL);
327
328     return TRUE;
329 }
330
331 /* At process attach */
332 BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpv)
333 {
334     TRACE("WineD3D DLLMain Reason=%u\n", fdwReason);
335
336     switch (fdwReason)
337     {
338         case DLL_PROCESS_ATTACH:
339             return wined3d_init(hInstDLL);
340
341         case DLL_PROCESS_DETACH:
342             return wined3d_destroy(hInstDLL);
343
344         default:
345             return TRUE;
346     }
347 }