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/****************************************************************************
* Copyright (C) 2016 Intel Corporation. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
***************************************************************************/
#include "util/u_cpu_detect.h"
#include "util/u_dl.h"
#include "swr_public.h"
#include "swr_screen.h"
#include <stdio.h>
// Helper function to resolve the backend filename based on architecture
inline void get_swr_arch_filename(const char arch[], char filename[])
{
#ifdef HAVE_SWR_BUILTIN
strcpy(filename , "builtin");
#else
sprintf(filename, "%sswr%s%s", UTIL_DL_PREFIX, arch, UTIL_DL_EXT);
#endif
}
struct pipe_screen *
swr_create_screen(struct sw_winsys *winsys)
{
char filename[256] = { 0 };
bool found = false;
bool is_knl = false;
PFNSwrGetInterface pfnSwrGetInterface = nullptr;
util_cpu_detect();
if (!found && util_cpu_caps.has_avx512f && util_cpu_caps.has_avx512er) {
fprintf(stderr, "SWR detected KNL instruction support ");
#ifndef HAVE_SWR_KNL
fprintf(stderr, "(skipping not built).\n");
#else
get_swr_arch_filename("KNL", filename);
found = true;
is_knl = true;
#endif
}
if (!found && util_cpu_caps.has_avx512f && util_cpu_caps.has_avx512bw) {
fprintf(stderr, "SWR detected SKX instruction support ");
#ifndef HAVE_SWR_SKX
fprintf(stderr, "(skipping not built).\n");
#else
get_swr_arch_filename("SKX", filename);
found = true;
#endif
}
if (!found && util_cpu_caps.has_avx2) {
fprintf(stderr, "SWR detected AVX2 instruction support ");
#ifndef HAVE_SWR_AVX2
fprintf(stderr, "(skipping not built).\n");
#else
get_swr_arch_filename("AVX2", filename);
found = true;
#endif
}
if (!found && util_cpu_caps.has_avx) {
fprintf(stderr, "SWR detected AVX instruction support ");
#ifndef HAVE_SWR_AVX
fprintf(stderr, "(skipping not built).\n");
#else
get_swr_arch_filename("AVX", filename);
found = true;
#endif
}
if (!found) {
fprintf(stderr, "SWR could not detect a supported CPU architecture.\n");
exit(-1);
}
fprintf(stderr, "(using %s).\n", filename);
#ifdef HAVE_SWR_BUILTIN
pfnSwrGetInterface = SwrGetInterface;
#else
util_dl_library *pLibrary = util_dl_open(filename);
if (!pLibrary) {
fprintf(stderr, "SWR library load failure: %s\n", util_dl_error());
exit(-1);
}
util_dl_proc pApiProc = util_dl_get_proc_address(pLibrary, "SwrGetInterface");
if (!pApiProc) {
fprintf(stderr, "SWR library search failure: %s\n", util_dl_error());
exit(-1);
}
pfnSwrGetInterface = (PFNSwrGetInterface)pApiProc;
#endif
struct pipe_screen *screen = swr_create_screen_internal(winsys);
swr_screen(screen)->is_knl = is_knl;
swr_screen(screen)->pfnSwrGetInterface = pfnSwrGetInterface;
return screen;
}
#ifdef _WIN32
// swap function called from libl_gdi.c
void
swr_gdi_swap(struct pipe_screen *screen,
struct pipe_resource *res,
void *hDC)
{
screen->flush_frontbuffer(screen,
res,
0, 0,
hDC,
NULL);
}
#endif /* _WIN32 */
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