1
2 #ifndef SW_HELPER_H
3 #define SW_HELPER_H
4
5 #include "util/compiler.h"
6 #include "util/u_debug.h"
7 #include "target-helpers/sw_helper_public.h"
8 #include "frontend/sw_winsys.h"
9
10
11 /* Helper function to choose and instantiate one of the software rasterizers:
12 * llvmpipe, softpipe.
13 */
14
15 #ifdef GALLIUM_ZINK
16 #include "zink/zink_public.h"
17 #endif
18
19 #ifdef GALLIUM_D3D12
20 #include "d3d12/d3d12_public.h"
21 #endif
22
23 #ifdef GALLIUM_SOFTPIPE
24 #include "softpipe/sp_public.h"
25 #endif
26
27 #ifdef GALLIUM_LLVMPIPE
28 #include "llvmpipe/lp_public.h"
29 #endif
30
31 #ifdef GALLIUM_VIRGL
32 #include "virgl/virgl_public.h"
33 #include "virgl/vtest/virgl_vtest_public.h"
34 #endif
35
36 static inline struct pipe_screen *
sw_screen_create_named(struct sw_winsys * winsys,const struct pipe_screen_config * config,const char * driver)37 sw_screen_create_named(struct sw_winsys *winsys, const struct pipe_screen_config *config, const char *driver)
38 {
39 struct pipe_screen *screen = NULL;
40
41 #if defined(GALLIUM_LLVMPIPE)
42 if (screen == NULL && strcmp(driver, "llvmpipe") == 0)
43 screen = llvmpipe_create_screen(winsys);
44 #endif
45
46 #if defined(GALLIUM_VIRGL)
47 if (screen == NULL && strcmp(driver, "virpipe") == 0) {
48 struct virgl_winsys *vws;
49 vws = virgl_vtest_winsys_wrap(winsys);
50 screen = virgl_create_screen(vws, NULL);
51 }
52 #endif
53
54 #if defined(GALLIUM_SOFTPIPE)
55 if (screen == NULL && strcmp(driver, "softpipe") == 0)
56 screen = softpipe_create_screen(winsys);
57 #endif
58
59 #if defined(GALLIUM_ZINK)
60 if (screen == NULL && strcmp(driver, "zink") == 0)
61 screen = zink_create_screen(winsys, config);
62 #endif
63
64 #if defined(GALLIUM_D3D12)
65 if (screen == NULL && strcmp(driver, "d3d12") == 0)
66 screen = d3d12_create_dxcore_screen(winsys, NULL);
67 #endif
68
69 return screen;
70 }
71
72 struct pipe_screen *
sw_screen_create_vk(struct sw_winsys * winsys,const struct pipe_screen_config * config,bool sw_vk)73 sw_screen_create_vk(struct sw_winsys *winsys, const struct pipe_screen_config *config, bool sw_vk)
74 {
75 UNUSED bool only_sw = debug_get_bool_option("LIBGL_ALWAYS_SOFTWARE", false);
76 const char *drivers[] = {
77 (sw_vk ? "" : debug_get_option("GALLIUM_DRIVER", "")),
78 #if defined(GALLIUM_D3D12)
79 (sw_vk || only_sw) ? "" : "d3d12",
80 #endif
81 #if defined(GALLIUM_LLVMPIPE)
82 "llvmpipe",
83 #endif
84 #if defined(GALLIUM_SOFTPIPE)
85 sw_vk ? "" : "softpipe",
86 #endif
87 };
88
89 for (unsigned i = 0; i < ARRAY_SIZE(drivers); i++) {
90 struct pipe_screen *screen = sw_screen_create_named(winsys, config, drivers[i]);
91 if (screen)
92 return screen;
93 /* If the env var is set, don't keep trying things */
94 else if (i == 0 && drivers[i][0] != '\0')
95 return NULL;
96 }
97 return NULL;
98 }
99
100 struct pipe_screen *
sw_screen_create_zink(struct sw_winsys * winsys,const struct pipe_screen_config * config,bool whatever)101 sw_screen_create_zink(struct sw_winsys *winsys, const struct pipe_screen_config *config, bool whatever)
102 {
103 #if defined(GALLIUM_ZINK)
104 return zink_create_screen(winsys, config);
105 #else
106 return NULL;
107 #endif
108 }
109
110 struct pipe_screen *
sw_screen_create(struct sw_winsys * winsys)111 sw_screen_create(struct sw_winsys *winsys)
112 {
113 return sw_screen_create_vk(winsys, NULL, false);
114 }
115 #endif
116