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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 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 "ags/engine/ac/dynobj/script_drawing_surface.h"
#include "ags/engine/ac/dynobj/dynobj_manager.h"
#include "ags/shared/ac/sprite_cache.h"
#include "ags/engine/ac/runtime_defines.h"
#include "ags/shared/ac/common.h"
#include "ags/engine/ac/draw.h"
#include "ags/engine/ac/drawing_surface.h"
#include "ags/engine/ac/game_state.h"
#include "ags/shared/ac/game_setup_struct.h"
#include "ags/shared/game/room_struct.h"
#include "ags/shared/gfx/bitmap.h"
#include "ags/globals.h"
namespace AGS3 {
using namespace AGS::Shared;
Bitmap *ScriptDrawingSurface::GetBitmapSurface() {
// TODO: consider creating weak_ptr here, and store one in the DrawingSurface!
if (roomBackgroundNumber >= 0)
return _GP(thisroom).BgFrames[roomBackgroundNumber].Graphic.get();
else if (dynamicSpriteNumber >= 0)
return _GP(spriteset)[dynamicSpriteNumber];
else if (dynamicSurfaceNumber >= 0)
return _G(dynamicallyCreatedSurfaces)[dynamicSurfaceNumber].get();
else if (linkedBitmapOnly != nullptr)
return linkedBitmapOnly;
else if (roomMaskType > kRoomAreaNone)
return _GP(thisroom).GetMask(roomMaskType);
quit("!DrawingSurface: attempted to use surface after Release was called");
return nullptr;
}
Bitmap *ScriptDrawingSurface::StartDrawing() {
return this->GetBitmapSurface();
}
void ScriptDrawingSurface::FinishedDrawingReadOnly() {
}
void ScriptDrawingSurface::FinishedDrawing() {
FinishedDrawingReadOnly();
modified = 1;
}
int ScriptDrawingSurface::Dispose(void *address, bool force) {
// dispose the drawing surface
DrawingSurface_Release(this);
delete this;
return 1;
}
const char *ScriptDrawingSurface::GetType() {
return "DrawingSurface";
}
size_t ScriptDrawingSurface::CalcSerializeSize(const void * /*address*/) {
return sizeof(int32_t) * 9;
}
void ScriptDrawingSurface::Serialize(const void *address, Stream *out) {
// pack mask type in the last byte of a negative integer
// note: (-1) is reserved for "unused", for backward compatibility
if (roomMaskType > 0)
out->WriteInt32(0xFFFFFF00 | roomMaskType);
else
out->WriteInt32(roomBackgroundNumber);
out->WriteInt32(dynamicSpriteNumber);
out->WriteInt32(dynamicSurfaceNumber);
out->WriteInt32(currentColour);
out->WriteInt32(currentColourScript);
out->WriteInt32(highResCoordinates);
out->WriteInt32(modified);
out->WriteInt32(hasAlphaChannel);
out->WriteInt32(isLinkedBitmapOnly ? 1 : 0);
}
void ScriptDrawingSurface::Unserialize(int index, Stream *in, size_t data_sz) {
int room_ds = in->ReadInt32();
if (room_ds >= 0)
roomBackgroundNumber = room_ds;
// negative value may contain a mask type
else if ((room_ds & 0xFF) != 0xFF)
roomMaskType = (RoomAreaMask)(room_ds & 0xFF);
dynamicSpriteNumber = in->ReadInt32();
dynamicSurfaceNumber = in->ReadInt32();
currentColour = in->ReadInt32();
currentColourScript = in->ReadInt32();
highResCoordinates = in->ReadInt32();
modified = in->ReadInt32();
hasAlphaChannel = in->ReadInt32();
isLinkedBitmapOnly = (in->ReadInt32() != 0);
ccRegisterUnserializedObject(index, this, this);
}
ScriptDrawingSurface::ScriptDrawingSurface() {
roomBackgroundNumber = -1;
roomMaskType = kRoomAreaNone;
dynamicSpriteNumber = -1;
dynamicSurfaceNumber = -1;
isLinkedBitmapOnly = false;
linkedBitmapOnly = nullptr;
currentColour = _GP(play).raw_color;
currentColourScript = 0;
modified = 0;
hasAlphaChannel = 0;
highResCoordinates = 0;
// NOTE: Normally in contemporary games coordinates ratio will always be 1:1.
// But we still support legacy drawing, so have to set this up even for modern games,
// otherwise we'd have to complicate conversion conditions further.
if (_GP(game).IsLegacyHiRes() && _GP(game).IsDataInNativeCoordinates()) {
highResCoordinates = 1;
}
}
} // namespace AGS3
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