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 "memory/InitMemory.h"
25 #include "util/u_cpu_detect.h"
26 #include "util/u_dl.h"
27 #include "swr_public.h"
28 #include "swr_screen.h"
29
30 #include <stdio.h>
31
32 // Helper function to resolve the backend filename based on architecture
33 static bool
swr_initialize_screen_interface(struct swr_screen * screen,const char arch[])34 swr_initialize_screen_interface(struct swr_screen *screen, const char arch[])
35 {
36 #ifdef HAVE_SWR_BUILTIN
37 screen->pLibrary = NULL;
38 screen->pfnSwrGetInterface = SwrGetInterface;
39 screen->pfnSwrGetTileInterface = SwrGetTileIterface;
40 InitTilesTable();
41 swr_print_info("(using: builtin).\n");
42 #else
43 char filename[256] = { 0 };
44 sprintf(filename, "%sswr%s%s", UTIL_DL_PREFIX, arch, UTIL_DL_EXT);
45
46 screen->pLibrary = util_dl_open(filename);
47 if (!screen->pLibrary) {
48 fprintf(stderr, "(skipping: %s).\n", util_dl_error());
49 return false;
50 }
51
52 util_dl_proc pApiProc = util_dl_get_proc_address(screen->pLibrary,
53 "SwrGetInterface");
54 util_dl_proc pTileApiProc = util_dl_get_proc_address(screen->pLibrary,
55 "SwrGetTileIterface");
56 util_dl_proc pInitFunc = util_dl_get_proc_address(screen->pLibrary,
57 "InitTilesTable");
58 if (!pApiProc || !pInitFunc || !pTileApiProc) {
59 fprintf(stderr, "(skipping: %s).\n", util_dl_error());
60 util_dl_close(screen->pLibrary);
61 screen->pLibrary = NULL;
62 return false;
63 }
64
65 screen->pfnSwrGetInterface = (PFNSwrGetInterface)pApiProc;
66 screen->pfnSwrGetTileInterface = (PFNSwrGetTileInterface)pTileApiProc;
67
68 SWR_ASSERT(screen->pfnSwrGetInterface != nullptr);
69 SWR_ASSERT(screen->pfnSwrGetTileInterface != nullptr);
70 SWR_ASSERT(pInitFunc != nullptr);
71
72 pInitFunc();
73
74 swr_print_info("(using: %s).\n", filename);
75 #endif
76
77 return true;
78 }
79
80
81 struct pipe_screen *
swr_create_screen(struct sw_winsys * winsys)82 swr_create_screen(struct sw_winsys *winsys)
83 {
84 struct pipe_screen *p_screen = swr_create_screen_internal(winsys);
85 if (!p_screen) {
86 return NULL;
87 }
88
89 struct swr_screen *screen = swr_screen(p_screen);
90 screen->is_knl = false;
91
92 util_cpu_detect();
93
94 if (util_cpu_caps.has_avx512f && util_cpu_caps.has_avx512er) {
95 swr_print_info("SWR detected KNL instruction support ");
96 #ifndef HAVE_SWR_KNL
97 swr_print_info("(skipping: not built).\n");
98 #else
99 if (swr_initialize_screen_interface(screen, "KNL")) {
100 screen->is_knl = true;
101 return p_screen;
102 }
103 #endif
104 }
105
106 if (util_cpu_caps.has_avx512f && util_cpu_caps.has_avx512bw) {
107 swr_print_info("SWR detected SKX instruction support ");
108 #ifndef HAVE_SWR_SKX
109 swr_print_info("(skipping not built).\n");
110 #else
111 if (swr_initialize_screen_interface(screen, "SKX"))
112 return p_screen;
113 #endif
114 }
115
116 if (util_cpu_caps.has_avx2) {
117 swr_print_info("SWR detected AVX2 instruction support ");
118 #ifndef HAVE_SWR_AVX2
119 swr_print_info("(skipping not built).\n");
120 #else
121 if (swr_initialize_screen_interface(screen, "AVX2"))
122 return p_screen;
123 #endif
124 }
125
126 if (util_cpu_caps.has_avx) {
127 swr_print_info("SWR detected AVX instruction support ");
128 #ifndef HAVE_SWR_AVX
129 swr_print_info("(skipping not built).\n");
130 #else
131 if (swr_initialize_screen_interface(screen, "AVX"))
132 return p_screen;
133 #endif
134 }
135
136 fprintf(stderr, "SWR could not initialize a supported CPU architecture.\n");
137 swr_destroy_screen_internal(&screen);
138
139 return NULL;
140 }
141
142
143 #ifdef _WIN32
144 // swap function called from libl_gdi.c
145
146 void
swr_gdi_swap(struct pipe_screen * screen,struct pipe_resource * res,void * hDC)147 swr_gdi_swap(struct pipe_screen *screen,
148 struct pipe_resource *res,
149 void *hDC)
150 {
151 screen->flush_frontbuffer(screen,
152 res,
153 0, 0,
154 hDC,
155 NULL);
156 }
157
158 #endif /* _WIN32 */
159