1 /*
2 * Copyright © Microsoft Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 */
23
24
25 #include <windows.h>
26
27 #include "util/u_debug.h"
28 #include "stw_winsys.h"
29 #include "stw_device.h"
30 #include "gdi/gdi_sw_winsys.h"
31
32 #include "softpipe/sp_texture.h"
33 #include "softpipe/sp_screen.h"
34 #include "softpipe/sp_public.h"
35
36 #ifndef GALLIUM_D3D12
37 #error "This file must be compiled only with the D3D12 driver"
38 #endif
39 #include "d3d12/wgl/d3d12_wgl_public.h"
40
41 static struct pipe_screen *
gdi_screen_create(HDC hDC)42 gdi_screen_create(HDC hDC)
43 {
44 struct pipe_screen *screen = NULL;
45 struct sw_winsys *winsys;
46
47 winsys = gdi_create_sw_winsys();
48 if(!winsys)
49 goto no_winsys;
50
51 screen = d3d12_wgl_create_screen( winsys, hDC );
52
53 if(!screen)
54 goto no_screen;
55
56 return screen;
57
58 no_screen:
59 winsys->destroy(winsys);
60 no_winsys:
61 return NULL;
62 }
63
64
65 static void
gdi_present(struct pipe_screen * screen,struct pipe_context * context,struct pipe_resource * res,HDC hDC)66 gdi_present(struct pipe_screen *screen,
67 struct pipe_context *context,
68 struct pipe_resource *res,
69 HDC hDC)
70 {
71 d3d12_wgl_present(screen, context, res, hDC);
72 }
73
74
75 static boolean
gdi_get_adapter_luid(struct pipe_screen * screen,HDC hDC,LUID * adapter_luid)76 gdi_get_adapter_luid(struct pipe_screen *screen,
77 HDC hDC,
78 LUID *adapter_luid)
79 {
80 if (!stw_dev || !stw_dev->callbacks.pfnGetAdapterLuid)
81 return false;
82
83 stw_dev->callbacks.pfnGetAdapterLuid(hDC, adapter_luid);
84 return true;
85 }
86
87
88 static unsigned
gdi_get_pfd_flags(struct pipe_screen * screen)89 gdi_get_pfd_flags(struct pipe_screen *screen)
90 {
91 return d3d12_wgl_get_pfd_flags(screen);
92 }
93
94
95 static struct stw_winsys_framebuffer *
gdi_create_framebuffer(struct pipe_screen * screen,HWND hWnd,int iPixelFormat)96 gdi_create_framebuffer(struct pipe_screen *screen,
97 HWND hWnd,
98 int iPixelFormat)
99 {
100 return d3d12_wgl_create_framebuffer(screen, hWnd, iPixelFormat);
101 }
102
103 static const char *
get_name(void)104 get_name(void)
105 {
106 return "d3d12";
107 }
108
109 static const struct stw_winsys stw_winsys = {
110 &gdi_screen_create,
111 &gdi_present,
112 &gdi_get_adapter_luid,
113 NULL, /* shared_surface_open */
114 NULL, /* shared_surface_close */
115 NULL, /* compose */
116 &gdi_get_pfd_flags,
117 &gdi_create_framebuffer,
118 &get_name,
119 };
120
121
122 EXTERN_C BOOL WINAPI
123 DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved);
124
125
126 BOOL WINAPI
DllMain(HINSTANCE hinstDLL,DWORD fdwReason,LPVOID lpvReserved)127 DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
128 {
129 switch (fdwReason) {
130 case DLL_PROCESS_ATTACH:
131 stw_init(&stw_winsys);
132 stw_init_thread();
133 break;
134
135 case DLL_THREAD_ATTACH:
136 stw_init_thread();
137 break;
138
139 case DLL_THREAD_DETACH:
140 stw_cleanup_thread();
141 break;
142
143 case DLL_PROCESS_DETACH:
144 if (lpvReserved == NULL) {
145 // We're being unloaded from the process.
146 stw_cleanup_thread();
147 stw_cleanup();
148 } else {
149 // Process itself is terminating, and all threads and modules are
150 // being detached.
151 //
152 // The order threads (including llvmpipe rasterizer threads) are
153 // destroyed can not be relied up, so it's not safe to cleanup.
154 //
155 // However global destructors (e.g., LLVM's) will still be called, and
156 // if Microsoft OPENGL32.DLL's DllMain is called after us, it will
157 // still try to invoke DrvDeleteContext to destroys all outstanding,
158 // so set stw_dev to NULL to return immediately if that happens.
159 stw_dev = NULL;
160 }
161 break;
162 }
163 return TRUE;
164 }
165