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/* 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 2
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "backends/graphics/sdl/sdl-graphics.h"
#include "backends/platform/sdl/sdl-sys.h"
#include "backends/events/sdl/sdl-events.h"
#include "common/config-manager.h"
#include "common/textconsole.h"
#include "graphics/scaler/aspect.h"
SdlGraphicsManager::SdlGraphicsManager(SdlEventSource *source, SdlWindow *window)
: _eventSource(source), _window(window), _hwScreen(nullptr)
#if SDL_VERSION_ATLEAST(2, 0, 0)
, _allowWindowSizeReset(false), _hintedWidth(0), _hintedHeight(0), _lastFlags(0)
#endif
{}
void SdlGraphicsManager::activateManager() {
_eventSource->setGraphicsManager(this);
}
void SdlGraphicsManager::deactivateManager() {
_eventSource->setGraphicsManager(0);
}
SdlGraphicsManager::State SdlGraphicsManager::getState() const {
State state;
state.screenWidth = getWidth();
state.screenHeight = getHeight();
state.aspectRatio = getFeatureState(OSystem::kFeatureAspectRatioCorrection);
state.fullscreen = getFeatureState(OSystem::kFeatureFullscreenMode);
state.cursorPalette = getFeatureState(OSystem::kFeatureCursorPalette);
#ifdef USE_RGB_COLOR
state.pixelFormat = getScreenFormat();
#endif
return state;
}
bool SdlGraphicsManager::setState(const State &state) {
beginGFXTransaction();
#ifdef USE_RGB_COLOR
initSize(state.screenWidth, state.screenHeight, &state.pixelFormat);
#else
initSize(state.screenWidth, state.screenHeight, nullptr);
#endif
setFeatureState(OSystem::kFeatureAspectRatioCorrection, state.aspectRatio);
setFeatureState(OSystem::kFeatureFullscreenMode, state.fullscreen);
setFeatureState(OSystem::kFeatureCursorPalette, state.cursorPalette);
if (endGFXTransaction() != OSystem::kTransactionSuccess) {
return false;
} else {
return true;
}
}
bool SdlGraphicsManager::defaultGraphicsModeConfig() const {
const Common::ConfigManager::Domain *transientDomain = ConfMan.getDomain(Common::ConfigManager::kTransientDomain);
if (transientDomain && transientDomain->contains("gfx_mode")) {
const Common::String &mode = transientDomain->getVal("gfx_mode");
if (!mode.equalsIgnoreCase("normal") && !mode.equalsIgnoreCase("default")) {
return false;
}
}
const Common::ConfigManager::Domain *gameDomain = ConfMan.getActiveDomain();
if (gameDomain && gameDomain->contains("gfx_mode")) {
const Common::String &mode = gameDomain->getVal("gfx_mode");
if (!mode.equalsIgnoreCase("normal") && !mode.equalsIgnoreCase("default")) {
return false;
}
}
return true;
}
int SdlGraphicsManager::getGraphicsModeIdByName(const Common::String &name) const {
const OSystem::GraphicsMode *mode = getSupportedGraphicsModes();
while (mode && mode->name != nullptr) {
if (name.equalsIgnoreCase(mode->name)) {
return mode->id;
}
++mode;
}
return -1;
}
void SdlGraphicsManager::initSizeHint(const Graphics::ModeList &modes) {
#if SDL_VERSION_ATLEAST(2, 0, 0)
const bool useDefault = defaultGraphicsModeConfig();
int scale = getGraphicsModeScale(getGraphicsModeIdByName(ConfMan.get("gfx_mode")));
if (scale == -1) {
warning("Unknown scaler; defaulting to 1");
scale = 1;
}
int16 bestWidth = 0, bestHeight = 0;
const Graphics::ModeList::const_iterator end = modes.end();
for (Graphics::ModeList::const_iterator it = modes.begin(); it != end; ++it) {
int16 width = it->width, height = it->height;
// TODO: Normalize AR correction by passing a PAR in the mode list
// instead of checking the dimensions here like this, since not all
// 320x200/640x400 uses are with non-square pixels (e.g. DreamWeb).
if (ConfMan.getBool("aspect_ratio")) {
if ((width == 320 && height == 200) || (width == 640 && height == 400)) {
height = real2Aspect(height);
}
}
if (!useDefault || width <= 320) {
width *= scale;
height *= scale;
}
if (bestWidth < width) {
bestWidth = width;
}
if (bestHeight < height) {
bestHeight = height;
}
}
_hintedWidth = bestWidth;
_hintedHeight = bestHeight;
#endif
}
bool SdlGraphicsManager::showMouse(const bool visible) {
if (visible == _cursorVisible) {
return visible;
}
int showCursor = SDL_DISABLE;
if (visible) {
// _cursorX and _cursorY are currently always clipped to the active
// area, so we need to ask SDL where the system's mouse cursor is
// instead
int x, y;
SDL_GetMouseState(&x, &y);
if (!_activeArea.drawRect.contains(Common::Point(x, y))) {
showCursor = SDL_ENABLE;
}
}
SDL_ShowCursor(showCursor);
return WindowedGraphicsManager::showMouse(visible);
}
void SdlGraphicsManager::notifyMousePosition(Common::Point &mouse) {
int showCursor = SDL_DISABLE;
if (!_activeArea.drawRect.contains(mouse)) {
mouse.x = CLIP<int>(mouse.x, _activeArea.drawRect.left, _activeArea.drawRect.right - 1);
mouse.y = CLIP<int>(mouse.y, _activeArea.drawRect.top, _activeArea.drawRect.bottom - 1);
if (_window->mouseIsGrabbed()) {
setSystemMousePosition(mouse.x, mouse.y);
} else if (_cursorVisible) {
showCursor = SDL_ENABLE;
}
}
SDL_ShowCursor(showCursor);
setMousePosition(mouse.x, mouse.y);
mouse = convertWindowToVirtual(mouse.x, mouse.y);
}
void SdlGraphicsManager::handleResizeImpl(const int width, const int height) {
_eventSource->resetKeyboardEmulation(width - 1, height - 1);
_forceRedraw = true;
}
#if SDL_VERSION_ATLEAST(2, 0, 0)
bool SdlGraphicsManager::createOrUpdateWindow(int width, int height, const Uint32 flags) {
if (!_window) {
return false;
}
// We only update the actual window when flags change (which usually means
// fullscreen mode is entered/exited) or when updates are forced so that we
// do not reset the window size whenever a game makes a call to change the
// size or pixel format of the internal game surface (since a user may have
// resized the game window)
if (!_window->getSDLWindow() || _lastFlags != flags || _allowWindowSizeReset) {
if (_hintedWidth) {
width = _hintedWidth;
}
if (_hintedHeight) {
height = _hintedHeight;
}
if (!_window->createOrUpdateWindow(width, height, flags)) {
return false;
}
_lastFlags = flags;
_allowWindowSizeReset = false;
}
return true;
}
#endif
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