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author | Matthew Hoops | 2011-09-29 01:13:38 -0400 |
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committer | Matthew Hoops | 2011-09-29 01:15:54 -0400 |
commit | 6440d4d5f6b4183cd857ee685cebd08937137cf8 (patch) | |
tree | 5578ea4926052244d5832b9a60613421c902465a /engines | |
parent | 091df1815e5fc4d5054f9005e6a80bd305588118 (diff) | |
download | scummvm-rg350-6440d4d5f6b4183cd857ee685cebd08937137cf8.tar.gz scummvm-rg350-6440d4d5f6b4183cd857ee685cebd08937137cf8.tar.bz2 scummvm-rg350-6440d4d5f6b4183cd857ee685cebd08937137cf8.zip |
PEGASUS: Implement the ScreenDimmer class
Diffstat (limited to 'engines')
-rw-r--r-- | engines/pegasus/elements.cpp | 46 | ||||
-rw-r--r-- | engines/pegasus/elements.h | 8 | ||||
-rw-r--r-- | engines/pegasus/pegasus.cpp | 3 | ||||
-rw-r--r-- | engines/pegasus/pegasus.h | 1 |
4 files changed, 58 insertions, 0 deletions
diff --git a/engines/pegasus/elements.cpp b/engines/pegasus/elements.cpp index 4fe449d69e..bd3b4db2cb 100644 --- a/engines/pegasus/elements.cpp +++ b/engines/pegasus/elements.cpp @@ -478,4 +478,50 @@ void SpriteSequence::newFrame(const uint16 frame) { _sprite.setCurrentFrameIndex(frame); } +#define DRAW_PIXEL() \ + if (bytesPerPixel == 2) \ + *((uint16 *)dst) = black; \ + else \ + *((uint32 *)dst) = black; \ + dst += bytesPerPixel + +#define SKIP_PIXEL() \ + dst += bytesPerPixel + +void ScreenDimmer::draw(const Common::Rect &r) { + // We're going to emulate QuickDraw's srcOr+gray mode here + // In this mode, every other y column is all black (odd-columns). + // Basically, every row does three black and then one transparent + // repeatedly. + + // The output is identical to the original + + uint32 black = g_system->getScreenFormat().RGBToColor(0, 0, 0); + Graphics::Surface *screen = ((PegasusEngine *)g_engine)->_gfx->getWorkArea(); + byte bytesPerPixel = g_system->getScreenFormat().bytesPerPixel; + + // We're currently doing it to the whole screen to simplify the code + + for (int y = 0; y < 480; y++) { + byte *dst = (byte *)screen->getBasePtr(0, y); + + for (int x = 0; x < 640; x += 4) { + if (y & 1) { + DRAW_PIXEL(); + DRAW_PIXEL(); + SKIP_PIXEL(); + DRAW_PIXEL(); + } else { + SKIP_PIXEL(); + DRAW_PIXEL(); + DRAW_PIXEL(); + DRAW_PIXEL(); + } + } + } +} + +#undef DRAW_PIXEL +#undef SKIP_PIXEL + } // End of namespace Pegasus diff --git a/engines/pegasus/elements.h b/engines/pegasus/elements.h index f806f26a17..84c390aa02 100644 --- a/engines/pegasus/elements.h +++ b/engines/pegasus/elements.h @@ -224,6 +224,14 @@ protected: Sprite _sprite; }; +class ScreenDimmer : public DisplayElement { +public: + ScreenDimmer() : DisplayElement(kScreenDimmerID) {} + virtual ~ScreenDimmer() {} + + virtual void draw(const Common::Rect &); +}; + } // End of namespace Pegasus #endif diff --git a/engines/pegasus/pegasus.cpp b/engines/pegasus/pegasus.cpp index ddc13d7a34..6af7f083af 100644 --- a/engines/pegasus/pegasus.cpp +++ b/engines/pegasus/pegasus.cpp @@ -142,6 +142,9 @@ Common::Error PegasusEngine::run() { _returnHotspot.setHotspotFlags(kInfoReturnSpotFlag); g_allHotspots.push_back(&_returnHotspot); + _screenDimmer.setBounds(Common::Rect(0, 0, 640, 480)); + _screenDimmer.setDisplayOrder(kScreenDimmerOrder); + while (!shouldQuit()) processShell(); diff --git a/engines/pegasus/pegasus.h b/engines/pegasus/pegasus.h index 8405a51dc1..c0a7d02631 100644 --- a/engines/pegasus/pegasus.h +++ b/engines/pegasus/pegasus.h @@ -232,6 +232,7 @@ private: GameMenu *_gameMenu; void doGameMenuCommand(const tGameMenuCommand); void doInterfaceOverview(); + ScreenDimmer _screenDimmer; // Energy int32 _savedEnergyValue; |