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Diffstat (limited to 'engines/sword25/gfx/graphicengine.cpp')
| -rwxr-xr-x | engines/sword25/gfx/graphicengine.cpp | 218 |
1 files changed, 218 insertions, 0 deletions
diff --git a/engines/sword25/gfx/graphicengine.cpp b/engines/sword25/gfx/graphicengine.cpp new file mode 100755 index 0000000000..b8ad3a04bd --- /dev/null +++ b/engines/sword25/gfx/graphicengine.cpp @@ -0,0 +1,218 @@ +// ----------------------------------------------------------------------------- +// This file is part of Broken Sword 2.5 +// Copyright (c) Malte Thiesen, Daniel Queteschiner and Michael Elsdörfer +// +// Broken Sword 2.5 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. +// +// Broken Sword 2.5 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 Broken Sword 2.5; if not, write to the Free Software +// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +// ----------------------------------------------------------------------------- + +#define BS_LOG_PREFIX "GRAPHICENGINE" + +#include "image/image.h" +#include "screenshot.h" +#include "kernel/memlog_off.h" +#include <memory> +#include <vector> +#include "kernel/memlog_on.h" +#include "kernel/inputpersistenceblock.h" +#include "kernel/outputpersistenceblock.h" + +extern "C" +{ +#include <lua.h> +#include <lauxlib.h> +} + +using namespace std; + +// ----------------------------------------------------------------------------- +// Constants +// ----------------------------------------------------------------------------- + +static const unsigned int FRAMETIME_SAMPLE_COUNT = 5; // Anzahl der Framezeiten über die, die Framezeit gemittelt wird + +// Includes +// ----------------------------------------------------------------------------- + +#include "graphicengine.h" + +// ----------------------------------------------------------------------------- + +BS_GraphicEngine::BS_GraphicEngine(BS_Kernel * pKernel) : + m_Width(0), + m_Height(0), + m_BitDepth(0), + m_Windowed(0), + m_LastTimeStamp(9223372036854775807), // max. BS_INT64 um beim ersten Aufruf von _UpdateLastFrameDuration() einen Reset zu erzwingen + m_LastFrameDuration(0), + m_TimerActive(true), + m_FrameTimeSamples(FRAMETIME_SAMPLE_COUNT, 0), + m_FrameTimeSampleSlot(0), + m_RepaintedPixels(0), + BS_ResourceService(pKernel) +{ + if (!RegisterScriptBindings()) + BS_LOG_ERRORLN("Script bindings could not be registered."); + else + BS_LOGLN("Script bindings registered."); +} + +// ----------------------------------------------------------------------------- + +void BS_GraphicEngine::UpdateLastFrameDuration() +{ + // Aktuelle Zeit holen + uint64_t CurrentTime = BS_Kernel::GetInstance()->GetMicroTicks(); + + // Verstrichene Zeit seit letztem Frame berechnen und zu große Zeitsprünge ( > 250 msek.) unterbinden + // (kann vorkommen bei geladenen Spielständen, während des Debuggings oder Hardwareungenauigkeiten) + m_FrameTimeSamples[m_FrameTimeSampleSlot] = static_cast<unsigned int>(CurrentTime - m_LastTimeStamp); + if (m_FrameTimeSamples[m_FrameTimeSampleSlot] > 250000) m_FrameTimeSamples[m_FrameTimeSampleSlot] = 250000; + m_FrameTimeSampleSlot = (m_FrameTimeSampleSlot + 1) % FRAMETIME_SAMPLE_COUNT; + + // Die Framezeit wird über mehrere Frames gemittelt um Ausreisser zu eliminieren + std::vector<unsigned int>::const_iterator it = m_FrameTimeSamples.begin(); + unsigned int Sum = *it; + for (it++; it != m_FrameTimeSamples.end(); it++) Sum += *it; + m_LastFrameDuration = Sum / FRAMETIME_SAMPLE_COUNT; + + // _LastTimeStamp auf die Zeit des aktuellen Frames setzen + m_LastTimeStamp = CurrentTime; +} + +// ----------------------------------------------------------------------------- + +namespace +{ + bool DoSaveScreenshot(BS_GraphicEngine & GraphicEngine, const std::string & Filename, bool Thumbnail) + { + unsigned int Width; + unsigned int Height; + vector<unsigned int> Data; + if (!GraphicEngine.GetScreenshot(Width, Height, Data)) + { + BS_LOG_ERRORLN("Call to GetScreenshot() failed. Cannot save screenshot."); + return false; + } + + unsigned int test = Data.size(); + + if (Thumbnail) + return BS_Screenshot::SaveThumbnailToFile(Width, Height, Data, Filename); + else + return BS_Screenshot::SaveToFile(Width, Height, Data, Filename); + } +} + +// ----------------------------------------------------------------------------- + +bool BS_GraphicEngine::SaveScreenshot(const std::string & Filename) +{ + return DoSaveScreenshot(*this, Filename, false); +} + +// ----------------------------------------------------------------------------- + +bool BS_GraphicEngine::SaveThumbnailScreenshot( const std::string & Filename ) +{ + return DoSaveScreenshot(*this, Filename, true); +} + +// ----------------------------------------------------------------------------- + +void BS_GraphicEngine::ARGBColorToLuaColor(lua_State * L, unsigned int Color) +{ + lua_Number Components[4] = + { + (Color >> 16) & 0xff, // Rot + (Color >> 8) & 0xff, // Grün + Color & 0xff, // Blau + Color >> 24, // Alpha + }; + + lua_newtable(L); + + for (unsigned int i = 1; i <= 4; i++) + { + lua_pushnumber(L, i); + lua_pushnumber(L, Components[i - 1]); + lua_settable(L, -3); + } +} + +// ----------------------------------------------------------------------------- + +unsigned int BS_GraphicEngine::LuaColorToARGBColor(lua_State * L, int StackIndex) +{ +#ifdef DEBUG + int __startStackDepth = lua_gettop(L); +#endif + + // Sicherstellen, dass wir wirklich eine Tabelle betrachten + luaL_checktype(L, StackIndex, LUA_TTABLE); + // Größe der Tabelle auslesen + unsigned int n = luaL_getn(L, StackIndex); + // RGB oder RGBA Farben werden unterstützt und sonst keine + if (n != 3 && n != 4) luaL_argcheck(L, 0, StackIndex, "at least 3 of the 4 color components have to be specified"); + + // Rote Farbkomponente auslesen + lua_rawgeti(L, StackIndex, 1); + unsigned int Red = static_cast<unsigned int>(lua_tonumber(L, -1)); + if (!lua_isnumber(L, -1) || Red >= 256) luaL_argcheck(L, 0, StackIndex, "red color component must be an integer between 0 and 255"); + lua_pop(L, 1); + + // Grüne Farbkomponente auslesen + lua_rawgeti(L, StackIndex, 2); + unsigned int Green = static_cast<unsigned int>(lua_tonumber(L, -1)); + if (!lua_isnumber(L, -1) || Green >= 256) luaL_argcheck(L, 0, StackIndex, "green color component must be an integer between 0 and 255"); + lua_pop(L, 1); + + // Blaue Farbkomponente auslesen + lua_rawgeti(L, StackIndex, 3); + unsigned int Blue = static_cast<unsigned int>(lua_tonumber(L, -1)); + if (!lua_isnumber(L, -1) || Blue >= 256) luaL_argcheck(L, 0, StackIndex, "blue color component must be an integer between 0 and 255"); + lua_pop(L, 1); + + // Alpha Farbkomponente auslesen + unsigned int Alpha = 0xff; + if (n == 4) + { + lua_rawgeti(L, StackIndex, 4); + Alpha = static_cast<unsigned int>(lua_tonumber(L, -1)); + if (!lua_isnumber(L, -1) || Alpha >= 256) luaL_argcheck(L, 0, StackIndex, "alpha color component must be an integer between 0 and 255"); + lua_pop(L, 1); + } + +#ifdef DEBUG + BS_ASSERT(__startStackDepth == lua_gettop(L)); +#endif + + return (Alpha << 24) | (Red << 16) | (Green << 8) | Blue; +} + +// ----------------------------------------------------------------------------- + +bool BS_GraphicEngine::Persist(BS_OutputPersistenceBlock & Writer) +{ + Writer.Write(m_TimerActive); + return true; +} + +// ----------------------------------------------------------------------------- + +bool BS_GraphicEngine::Unpersist(BS_InputPersistenceBlock & Reader) +{ + Reader.Read(m_TimerActive); + return Reader.IsGood(); +} |