1 /**************************************************************************
2 *
3 * Copyright 2012-2021 VMware, Inc.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
18 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
19 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
20 * USE OR OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * The above copyright notice and this permission notice (including the
23 * next paragraph) shall be included in all copies or substantial portions
24 * of the Software.
25 *
26 *
27 **************************************************************************/
28
29
30 #include "util/u_debug.h"
31 #include "target-helpers/inline_debug_helper.h"
32 #include "llvmpipe/lp_public.h"
33 #include "softpipe/sp_public.h"
34 #include "sw/gdi/gdi_sw_winsys.h"
35
36 #include "winddk_compat.h"
37 #include <d3dkmthk.h>
38
39 extern struct pipe_screen *
40 d3d10_create_screen(void);
41
d3d10_gdi_acquire_hdc(void * winsys_drawable_handle)42 HDC d3d10_gdi_acquire_hdc(void *winsys_drawable_handle) {
43 D3DKMT_PRESENT *pPresentInfo = (D3DKMT_PRESENT *)winsys_drawable_handle;
44
45 HWND hWnd = pPresentInfo->hWindow;
46 return GetDC(hWnd);
47 }
48
d3d10_gdi_release_hdc(void * winsys_drawable_handle,HDC hDC)49 void d3d10_gdi_release_hdc(void *winsys_drawable_handle, HDC hDC) {
50 D3DKMT_PRESENT *pPresentInfo = (D3DKMT_PRESENT *)winsys_drawable_handle;
51
52 HWND hWnd = pPresentInfo->hWindow;
53 ReleaseDC(hWnd, hDC);
54 }
55
56 struct pipe_screen *
d3d10_create_screen(void)57 d3d10_create_screen(void)
58 {
59 const char *default_driver;
60 const char *driver;
61 struct pipe_screen *screen = NULL;
62 struct sw_winsys *winsys;
63
64 winsys = gdi_create_sw_winsys(d3d10_gdi_acquire_hdc, d3d10_gdi_release_hdc);
65 if(!winsys)
66 goto no_winsys;
67
68 #ifdef GALLIUM_LLVMPIPE
69 default_driver = "llvmpipe";
70 #else
71 default_driver = "softpipe";
72 #endif
73
74 driver = debug_get_option("GALLIUM_DRIVER", default_driver);
75
76 #ifdef GALLIUM_LLVMPIPE
77 if (strcmp(driver, "llvmpipe") == 0) {
78 screen = llvmpipe_create_screen( winsys );
79 }
80 #else
81 (void)driver;
82 #endif
83
84 if (screen == NULL) {
85 screen = softpipe_create_screen( winsys );
86 }
87
88 if (screen == NULL)
89 goto no_screen;
90
91 return debug_screen_wrap( screen );
92
93 no_screen:
94 winsys->destroy(winsys);
95 no_winsys:
96 return NULL;
97 }
98