Files
scummvm/backends/base-backend.cpp
T
Wyatt Radkiewicz f062addfe2 BACKENDS: BaseBackend detect x86 SIMD extensions
Rebase conflict
Conflicts:
  backends/base-backend.h
2023-08-13 00:22:10 +02:00

127 lines
3.4 KiB
C++

/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "backends/base-backend.h"
#include "graphics/scalerplugin.h"
#ifndef DISABLE_DEFAULT_EVENT_MANAGER
#include "backends/events/default/default-events.h"
#endif
#ifndef DISABLE_DEFAULT_AUDIOCD_MANAGER
#include "backends/audiocd/default/default-audiocd.h"
#endif
#include "gui/message.h"
bool BaseBackend::setScaler(const char *name, int factor) {
if (!name)
return false;
if (!scumm_stricmp(name, "default"))
return setScaler(getDefaultScaler(), factor);
const PluginList &scalerPlugins = ScalerMan.getPlugins();
for (uint scalerIndex = 0; scalerIndex < scalerPlugins.size(); scalerIndex++) {
if (!scumm_stricmp(scalerPlugins[scalerIndex]->get<ScalerPluginObject>().getName(), name)) {
return setScaler(scalerIndex, factor);
}
}
return false;
}
void BaseBackend::displayMessageOnOSD(const Common::U32String &msg) {
// Display the message for 1.5 seconds
GUI::TimedMessageDialog dialog(msg, 1500);
dialog.runModal();
}
void BaseBackend::initBackend() {
// Init audio CD manager
#ifndef DISABLE_DEFAULT_AUDIOCD_MANAGER
if (!_audiocdManager)
_audiocdManager = new DefaultAudioCDManager();
#endif
#if defined(__x86_64__) || defined(__i686__)
uint32 ext_edx1 = 0, ext_ebx7 = 0;
# ifdef __GNUC__
asm ("mov $1, %%eax\n\t"
"cpuid\n\t"
"mov %%edx, %0\n\t"
"mov $7, %%eax\n\t"
"cpuid\n\t"
"mov %%ebx, %1\n\t"
: "=rm" (ext_edx1), "=rm" (ext_ebx7)
:
: "eax", "ebx", "ecx", "edx");
# elif _MSC_VER
__asm
{
mov eax,1
cpuid
mov ext_edx1,edx
mov ebx,7
cpuid
mov ext_ebx7,ebx
}
# endif // __GNUC__ and _MSC_VER
_x86features = (ext_edx1 & (1 << 26)) ? kX86FeatureSSE2 : kX86NoFeatures;
_x86features |= (ext_ebx7 & (1 << 5)) ? kX86FeatureAVX2 : kX86NoFeatures;
#else
_x86features = kX86NotX86;
#endif // __x86_64__ and __i686__
OSystem::initBackend();
}
bool BaseBackend::hasFeature(Feature f) {
if (f == kFeatureSSE2) return (_x86features & kX86FeatureSSE2) == kX86FeatureSSE2;
if (f == kFeatureAVX2) return (_x86features & kX86FeatureAVX2) == kX86FeatureAVX2;
return false;
}
void BaseBackend::fillScreen(uint32 col) {
Graphics::Surface *screen = lockScreen();
if (screen)
screen->fillRect(Common::Rect(screen->w, screen->h), col);
unlockScreen();
}
void BaseBackend::fillScreen(const Common::Rect &r, uint32 col) {
Graphics::Surface *screen = lockScreen();
if (screen)
screen->fillRect(r, col);
unlockScreen();
}
void EventsBaseBackend::initBackend() {
// Init Event manager
#ifndef DISABLE_DEFAULT_EVENT_MANAGER
if (!_eventManager)
_eventManager = new DefaultEventManager(this);
#endif
BaseBackend::initBackend();
}