1 /****************************************************************************
2 * Copyright (C) 2016 Intel Corporation. All Rights Reserved.
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 #include "util/u_cpu_detect.h"
25 #include "util/u_dl.h"
26 #include "swr_public.h"
27 #include "swr_screen.h"
28
29 #include <stdio.h>
30
31 // Helper function to resolve the backend filename based on architecture
32 static bool
swr_initialize_screen_interface(struct swr_screen * screen,const char arch[])33 swr_initialize_screen_interface(struct swr_screen *screen, const char arch[])
34 {
35 #ifdef HAVE_SWR_BUILTIN
36 screen->pLibrary = NULL;
37 screen->pfnSwrGetInterface = SwrGetInterface;
38 fprintf(stderr, "(using: builtin).\n");
39 #else
40 char filename[256] = { 0 };
41 sprintf(filename, "%sswr%s%s", UTIL_DL_PREFIX, arch, UTIL_DL_EXT);
42
43 screen->pLibrary = util_dl_open(filename);
44 if (!screen->pLibrary) {
45 fprintf(stderr, "(skipping: %s).\n", util_dl_error());
46 return false;
47 }
48
49 util_dl_proc pApiProc = util_dl_get_proc_address(screen->pLibrary,
50 "SwrGetInterface");
51 if (!pApiProc) {
52 fprintf(stderr, "(skipping: %s).\n", util_dl_error());
53 util_dl_close(screen->pLibrary);
54 screen->pLibrary = NULL;
55 return false;
56 }
57
58 screen->pfnSwrGetInterface = (PFNSwrGetInterface)pApiProc;
59 fprintf(stderr, "(using: %s).\n", filename);
60 #endif
61 return true;
62 }
63
64
65 struct pipe_screen *
swr_create_screen(struct sw_winsys * winsys)66 swr_create_screen(struct sw_winsys *winsys)
67 {
68 struct pipe_screen *p_screen = swr_create_screen_internal(winsys);
69 if (!p_screen) {
70 return NULL;
71 }
72
73 struct swr_screen *screen = swr_screen(p_screen);
74 screen->is_knl = false;
75
76 util_cpu_detect();
77
78 if (util_cpu_caps.has_avx512f && util_cpu_caps.has_avx512er) {
79 fprintf(stderr, "SWR detected KNL instruction support ");
80 #ifndef HAVE_SWR_KNL
81 fprintf(stderr, "(skipping: not built).\n");
82 #else
83 if (swr_initialize_screen_interface(screen, "KNL")) {
84 screen->is_knl = true;
85 return p_screen;
86 }
87 #endif
88 }
89
90 if (util_cpu_caps.has_avx512f && util_cpu_caps.has_avx512bw) {
91 fprintf(stderr, "SWR detected SKX instruction support ");
92 #ifndef HAVE_SWR_SKX
93 fprintf(stderr, "(skipping not built).\n");
94 #else
95 if (swr_initialize_screen_interface(screen, "SKX"))
96 return p_screen;
97 #endif
98 }
99
100 if (util_cpu_caps.has_avx2) {
101 fprintf(stderr, "SWR detected AVX2 instruction support ");
102 #ifndef HAVE_SWR_AVX2
103 fprintf(stderr, "(skipping not built).\n");
104 #else
105 if (swr_initialize_screen_interface(screen, "AVX2"))
106 return p_screen;
107 #endif
108 }
109
110 if (util_cpu_caps.has_avx) {
111 fprintf(stderr, "SWR detected AVX instruction support ");
112 #ifndef HAVE_SWR_AVX
113 fprintf(stderr, "(skipping not built).\n");
114 #else
115 if (swr_initialize_screen_interface(screen, "AVX"))
116 return p_screen;
117 #endif
118 }
119
120 fprintf(stderr, "SWR could not initialize a supported CPU architecture.\n");
121 swr_destroy_screen_internal(&screen);
122
123 return NULL;
124 }
125
126
127 #ifdef _WIN32
128 // swap function called from libl_gdi.c
129
130 void
swr_gdi_swap(struct pipe_screen * screen,struct pipe_resource * res,void * hDC)131 swr_gdi_swap(struct pipe_screen *screen,
132 struct pipe_resource *res,
133 void *hDC)
134 {
135 screen->flush_frontbuffer(screen,
136 res,
137 0, 0,
138 hDC,
139 NULL);
140 }
141
142 #endif /* _WIN32 */
143