mirror of
https://github.com/OpenRCT2/OpenRCT2
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758 lines
20 KiB
C++
758 lines
20 KiB
C++
#pragma region Copyright (c) 2014-2017 OpenRCT2 Developers
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/*****************************************************************************
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* OpenRCT2, an open source clone of Roller Coaster Tycoon 2.
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*
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* OpenRCT2 is the work of many authors, a full list can be found in contributors.md
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* For more information, visit https://github.com/OpenRCT2/OpenRCT2
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*
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* OpenRCT2 is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* A full copy of the GNU General Public License can be found in licence.txt
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*****************************************************************************/
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#pragma endregion
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#include <algorithm>
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#include <cstring>
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#include "../config/Config.h"
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#include "../Context.h"
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#include "../ui/UiContext.h"
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#include "../core/Math.hpp"
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#include "../interface/Screenshot.h"
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#include "IDrawingContext.h"
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#include "IDrawingEngine.h"
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#include "Rain.h"
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#include "X8DrawingEngine.h"
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#include "../Game.h"
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#include "../interface/Viewport.h"
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#include "../interface/Window.h"
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#include "../Intro.h"
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#include "Drawing.h"
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#include "LightFX.h"
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using namespace OpenRCT2;
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using namespace OpenRCT2::Drawing;
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using namespace OpenRCT2::Ui;
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X8RainDrawer::X8RainDrawer()
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{
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_rainPixels = new RainPixel[_rainPixelsCapacity];
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}
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X8RainDrawer::~X8RainDrawer()
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{
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delete [] _rainPixels;
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}
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void X8RainDrawer::SetDPI(rct_drawpixelinfo * dpi)
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{
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_screenDPI = dpi;
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}
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void X8RainDrawer::Draw(sint32 x, sint32 y, sint32 width, sint32 height, sint32 xStart, sint32 yStart)
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{
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static constexpr const uint8 RainPattern[] =
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{
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32, 32, 0, 12, 0, 14, 0, 16, 255, 0, 255, 0, 255, 0, 255, 0, 255,
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0, 255, 0, 255, 0, 255, 0, 255, 0, 255, 0, 255, 0, 255, 0, 255, 0,
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255, 0, 255, 0, 255, 0, 255, 0, 255, 0, 255, 0, 255, 0, 255, 0, 255,
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0, 255, 0, 255, 0, 255, 0, 255, 0, 255, 0, 255, 0, 255, 0, 0, 0
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};
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const uint8 * pattern = RainPattern;
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uint8 patternXSpace = *pattern++;
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uint8 patternYSpace = *pattern++;
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uint8 patternStartXOffset = xStart % patternXSpace;
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uint8 patternStartYOffset = yStart % patternYSpace;
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uint32 pixelOffset = (_screenDPI->pitch + _screenDPI->width) * y + x;
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uint8 patternYPos = patternStartYOffset % patternYSpace;
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uint8 * screenBits = _screenDPI->bits;
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//Stores the colours of changed pixels
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RainPixel * newPixels = &_rainPixels[_rainPixelsCount];
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for (; height != 0; height--)
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{
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uint8 patternX = pattern[patternYPos * 2];
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if (patternX != 0xFF)
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{
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if (_rainPixelsCount < (_rainPixelsCapacity - (uint32)width))
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{
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uint32 finalPixelOffset = width + pixelOffset;
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uint32 xPixelOffset = pixelOffset;
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xPixelOffset += ((uint8)(patternX - patternStartXOffset)) % patternXSpace;
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uint8 patternPixel = pattern[patternYPos * 2 + 1];
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for (; xPixelOffset < finalPixelOffset; xPixelOffset += patternXSpace)
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{
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uint8 current_pixel = screenBits[xPixelOffset];
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screenBits[xPixelOffset] = patternPixel;
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_rainPixelsCount++;
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// Store colour and position
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*newPixels++ = { xPixelOffset, current_pixel };
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}
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}
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}
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pixelOffset += _screenDPI->pitch + _screenDPI->width;
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patternYPos++;
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patternYPos %= patternYSpace;
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}
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}
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void X8RainDrawer::Restore()
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{
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if (_rainPixelsCount > 0)
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{
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uint32 numPixels = (_screenDPI->width + _screenDPI->pitch) * _screenDPI->height;
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uint8 * bits = _screenDPI->bits;
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for (uint32 i = 0; i < _rainPixelsCount; i++)
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{
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RainPixel rainPixel = _rainPixels[i];
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if (rainPixel.Position >= numPixels)
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{
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// Pixel out of bounds, bail
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break;
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}
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bits[rainPixel.Position] = rainPixel.Colour;
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}
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_rainPixelsCount = 0;
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}
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}
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#ifdef __WARN_SUGGEST_FINAL_METHODS__
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wsuggest-final-methods"
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#endif
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X8DrawingEngine::X8DrawingEngine(Ui::IUiContext * uiContext)
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{
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_drawingContext = new X8DrawingContext(this);
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#ifdef __ENABLE_LIGHTFX__
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lightfx_set_available(true);
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_lastLightFXenabled = (gConfigGeneral.enable_light_fx != 0);
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#endif
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}
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X8DrawingEngine::~X8DrawingEngine()
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{
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delete _drawingContext;
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delete [] _dirtyGrid.Blocks;
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delete [] _bits;
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}
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void X8DrawingEngine::Initialise()
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{
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}
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void X8DrawingEngine::Resize(uint32 width, uint32 height)
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{
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uint32 pitch = width;
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ConfigureBits(width, height, pitch);
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}
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void X8DrawingEngine::SetPalette(const rct_palette_entry * palette)
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{
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}
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void X8DrawingEngine::SetVSync(bool vsync)
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{
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// Not applicable for this engine
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}
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void X8DrawingEngine::Invalidate(sint32 left, sint32 top, sint32 right, sint32 bottom)
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{
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left = Math::Max(left, 0);
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top = Math::Max(top, 0);
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right = Math::Min(right, (sint32)_width);
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bottom = Math::Min(bottom, (sint32)_height);
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if (left >= right) return;
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if (top >= bottom) return;
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right--;
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bottom--;
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left >>= _dirtyGrid.BlockShiftX;
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right >>= _dirtyGrid.BlockShiftX;
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top >>= _dirtyGrid.BlockShiftY;
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bottom >>= _dirtyGrid.BlockShiftY;
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uint32 dirtyBlockColumns = _dirtyGrid.BlockColumns;
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uint8 * screenDirtyBlocks = _dirtyGrid.Blocks;
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for (sint16 y = top; y <= bottom; y++)
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{
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uint32 yOffset = y * dirtyBlockColumns;
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for (sint16 x = left; x <= right; x++)
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{
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screenDirtyBlocks[yOffset + x] = 0xFF;
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}
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}
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}
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void X8DrawingEngine::BeginDraw()
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{
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if (gIntroState == INTRO_STATE_NONE)
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{
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#ifdef __ENABLE_LIGHTFX__
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// HACK we need to re-configure the bits if light fx has been enabled / disabled
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if (_lastLightFXenabled != (gConfigGeneral.enable_light_fx != 0))
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{
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Resize(_width, _height);
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}
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#endif
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_rainDrawer.SetDPI(&_bitsDPI);
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_rainDrawer.Restore();
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}
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}
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void X8DrawingEngine::EndDraw()
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{
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}
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void X8DrawingEngine::PaintWindows()
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{
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window_reset_visibilities();
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// Redraw dirty regions before updating the viewports, otherwise
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// when viewports get panned, they copy dirty pixels
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DrawAllDirtyBlocks();
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window_update_all_viewports();
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DrawAllDirtyBlocks();
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// TODO move this out from drawing
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window_update_all();
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}
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void X8DrawingEngine::PaintRain()
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{
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DrawRain(&_bitsDPI, &_rainDrawer);
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}
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void X8DrawingEngine::CopyRect(sint32 x, sint32 y, sint32 width, sint32 height, sint32 dx, sint32 dy)
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{
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if (dx == 0 && dy == 0) return;
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// Originally 0x00683359
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// Adjust for move off screen
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// NOTE: when zooming, there can be x, y, dx, dy combinations that go off the
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// screen; hence the checks. This code should ultimately not be called when
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// zooming because this function is specific to updating the screen on move
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sint32 lmargin = Math::Min(x - dx, 0);
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sint32 rmargin = Math::Min((sint32)_width - (x - dx + width), 0);
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sint32 tmargin = Math::Min(y - dy, 0);
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sint32 bmargin = Math::Min((sint32)_height - (y - dy + height), 0);
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x -= lmargin;
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y -= tmargin;
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width += lmargin + rmargin;
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height += tmargin + bmargin;
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sint32 stride = _bitsDPI.width + _bitsDPI.pitch;
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uint8 * to = _bitsDPI.bits + y * stride + x;
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uint8 * from = _bitsDPI.bits + (y - dy) * stride + x - dx;
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if (dy > 0)
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{
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// If positive dy, reverse directions
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to += (height - 1) * stride;
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from += (height - 1) * stride;
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stride = -stride;
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}
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// Move bytes
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for (sint32 i = 0; i < height; i++)
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{
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memmove(to, from, width);
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to += stride;
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from += stride;
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}
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}
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sint32 X8DrawingEngine::Screenshot()
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{
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return screenshot_dump_png(&_bitsDPI);
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}
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IDrawingContext * X8DrawingEngine::GetDrawingContext(rct_drawpixelinfo * dpi)
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{
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_drawingContext->SetDPI(dpi);
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return _drawingContext;
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}
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rct_drawpixelinfo * X8DrawingEngine::GetDrawingPixelInfo()
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{
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return &_bitsDPI;
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}
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DRAWING_ENGINE_FLAGS X8DrawingEngine::GetFlags()
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{
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return DEF_DIRTY_OPTIMISATIONS;
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}
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void X8DrawingEngine::InvalidateImage(uint32 image)
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{
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// Not applicable for this engine
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}
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rct_drawpixelinfo * X8DrawingEngine::GetDPI()
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{
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return &_bitsDPI;
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}
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void X8DrawingEngine::ConfigureBits(uint32 width, uint32 height, uint32 pitch)
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{
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size_t newBitsSize = pitch * height;
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uint8 * newBits = new uint8[newBitsSize];
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if (_bits == nullptr)
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{
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std::fill_n(newBits, newBitsSize, 0);
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}
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else
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{
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if (_pitch == pitch)
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{
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std::copy_n(_bits, std::min(_bitsSize, newBitsSize), newBits);
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}
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else
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{
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uint8 * src = _bits;
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uint8 * dst = newBits;
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uint32 minWidth = Math::Min(_width, width);
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uint32 minHeight = Math::Min(_height, height);
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for (uint32 y = 0; y < minHeight; y++)
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{
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std::copy_n(src, minWidth, dst);
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if (pitch - minWidth > 0)
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{
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std::fill_n(dst + minWidth, pitch - minWidth, 0);
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}
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src += _pitch;
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dst += pitch;
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}
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}
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delete [] _bits;
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}
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_bits = newBits;
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_bitsSize = newBitsSize;
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_width = width;
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_height = height;
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_pitch = pitch;
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rct_drawpixelinfo * dpi = &_bitsDPI;
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dpi->bits = _bits;
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dpi->x = 0;
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dpi->y = 0;
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dpi->width = width;
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dpi->height = height;
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dpi->pitch = _pitch - width;
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ConfigureDirtyGrid();
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#ifdef __ENABLE_LIGHTFX__
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if (lightfx_is_available())
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{
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lightfx_update_buffers(dpi);
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}
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#endif
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}
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void X8DrawingEngine::OnDrawDirtyBlock(uint32 x, uint32 y, uint32 columns, uint32 rows)
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{
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}
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void X8DrawingEngine::ConfigureDirtyGrid()
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{
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_dirtyGrid.BlockShiftX = 7;
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_dirtyGrid.BlockShiftY = 6;
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_dirtyGrid.BlockWidth = 1 << _dirtyGrid.BlockShiftX;
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_dirtyGrid.BlockHeight = 1 << _dirtyGrid.BlockShiftY;
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_dirtyGrid.BlockColumns = (_width >> _dirtyGrid.BlockShiftX) + 1;
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_dirtyGrid.BlockRows = (_height >> _dirtyGrid.BlockShiftY) + 1;
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delete [] _dirtyGrid.Blocks;
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_dirtyGrid.Blocks = new uint8[_dirtyGrid.BlockColumns * _dirtyGrid.BlockRows];
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}
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void X8DrawingEngine::DrawAllDirtyBlocks()
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{
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uint32 dirtyBlockColumns = _dirtyGrid.BlockColumns;
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uint32 dirtyBlockRows = _dirtyGrid.BlockRows;
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uint8 * dirtyBlocks = _dirtyGrid.Blocks;
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for (uint32 x = 0; x < dirtyBlockColumns; x++)
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{
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for (uint32 y = 0; y < dirtyBlockRows; y++)
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{
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uint32 yOffset = y * dirtyBlockColumns;
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if (dirtyBlocks[yOffset + x] == 0)
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{
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continue;
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}
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// Determine columns
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uint32 xx;
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for (xx = x; xx < dirtyBlockColumns; xx++)
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{
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if (dirtyBlocks[yOffset + xx] == 0)
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{
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break;
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}
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}
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uint32 columns = xx - x;
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// Check rows
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uint32 yy;
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for (yy = y; yy < dirtyBlockRows; yy++)
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{
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uint32 yyOffset = yy * dirtyBlockColumns;
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for (xx = x; xx < x + columns; xx++)
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{
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if (dirtyBlocks[yyOffset + xx] == 0)
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{
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goto endRowCheck;
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}
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}
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}
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endRowCheck:
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uint32 rows = yy - y;
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DrawDirtyBlocks(x, y, columns, rows);
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}
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}
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}
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void X8DrawingEngine::DrawDirtyBlocks(uint32 x, uint32 y, uint32 columns, uint32 rows)
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{
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uint32 dirtyBlockColumns = _dirtyGrid.BlockColumns;
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uint8 * screenDirtyBlocks = _dirtyGrid.Blocks;
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// Unset dirty blocks
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for (uint32 top = y; top < y + rows; top++)
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{
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uint32 topOffset = top * dirtyBlockColumns;
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for (uint32 left = x; left < x + columns; left++)
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{
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screenDirtyBlocks[topOffset + left] = 0;
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}
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}
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// Determine region in pixels
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uint32 left = Math::Max<uint32>(0, x * _dirtyGrid.BlockWidth);
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uint32 top = Math::Max<uint32>(0, y * _dirtyGrid.BlockHeight);
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uint32 right = Math::Min(_width, left + (columns * _dirtyGrid.BlockWidth));
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uint32 bottom = Math::Min(_height, top + (rows * _dirtyGrid.BlockHeight));
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if (right <= left || bottom <= top)
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{
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return;
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}
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// Draw region
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OnDrawDirtyBlock(x, y, columns, rows);
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window_draw_all(&_bitsDPI, left, top, right, bottom);
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}
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#ifdef __WARN_SUGGEST_FINAL_METHODS__
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#pragma GCC diagnostic pop
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#endif
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X8DrawingContext::X8DrawingContext(X8DrawingEngine * engine)
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{
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_engine = engine;
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}
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X8DrawingContext::~X8DrawingContext()
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= default;
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IDrawingEngine * X8DrawingContext::GetEngine()
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{
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return _engine;
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}
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void X8DrawingContext::Clear(uint8 paletteIndex)
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{
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rct_drawpixelinfo * dpi = _dpi;
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sint32 w = dpi->width >> dpi->zoom_level;
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sint32 h = dpi->height >> dpi->zoom_level;
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uint8 * ptr = dpi->bits;
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for (sint32 y = 0; y < h; y++)
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{
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std::fill_n(ptr, w, paletteIndex);
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ptr += w + dpi->pitch;
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}
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}
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/** rct2: 0x0097FF04 */
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// clang-format off
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static constexpr const uint16 Pattern[] = {
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0b0111111110000000,
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0b0011111111000000,
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0b0001111111100000,
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0b0000111111110000,
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0b0000011111111000,
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0b0000001111111100,
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0b0000000111111110,
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0b0000000011111111,
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0b1000000001111111,
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0b1100000000111111,
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0b1110000000011111,
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0b1111000000001111,
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0b1111100000000111,
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0b1111110000000011,
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0b1111111000000001,
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0b1111111100000000,
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};
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/** rct2: 0x0097FF14 */
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static constexpr const uint16 PatternInverse[] = {
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0b1000000001111111,
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0b1100000000111111,
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0b1110000000011111,
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0b1111000000001111,
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0b1111100000000111,
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0b1111110000000011,
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0b1111111000000001,
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0b1111111100000000,
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0b0111111110000000,
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0b0011111111000000,
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0b0001111111100000,
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0b0000111111110000,
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0b0000011111111000,
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0b0000001111111100,
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0b0000000111111110,
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0b0000000011111111
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};
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/** rct2: 0x0097FEFC */
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static constexpr const uint16 * Patterns[] = {
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Pattern,
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PatternInverse
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};
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// clang-format on
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void X8DrawingContext::FillRect(uint32 colour, sint32 left, sint32 top, sint32 right, sint32 bottom)
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{
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rct_drawpixelinfo * dpi = _dpi;
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if (left > right) return;
|
|
if (top > bottom) return;
|
|
if (dpi->x > right) return;
|
|
if (left >= dpi->x + dpi->width) return;
|
|
if (bottom < dpi->y) return;
|
|
if (top >= dpi->y + dpi->height) return;
|
|
|
|
uint16 crossPattern = 0;
|
|
|
|
sint32 startX = left - dpi->x;
|
|
if (startX < 0)
|
|
{
|
|
crossPattern ^= startX;
|
|
startX = 0;
|
|
}
|
|
|
|
sint32 endX = right - dpi->x + 1;
|
|
if (endX > dpi->width)
|
|
{
|
|
endX = dpi->width;
|
|
}
|
|
|
|
sint32 startY = top - dpi->y;
|
|
if (startY < 0)
|
|
{
|
|
crossPattern ^= startY;
|
|
startY = 0;
|
|
}
|
|
|
|
sint32 endY = bottom - dpi->y + 1;
|
|
if (endY > dpi->height)
|
|
{
|
|
endY = dpi->height;
|
|
}
|
|
|
|
sint32 width = endX - startX;
|
|
sint32 height = endY - startY;
|
|
|
|
if (colour & 0x1000000)
|
|
{
|
|
// Cross hatching
|
|
uint8 * dst = (startY * (dpi->width + dpi->pitch)) + startX + dpi->bits;
|
|
for (sint32 i = 0; i < height; i++)
|
|
{
|
|
uint8 * nextdst = dst + dpi->width + dpi->pitch;
|
|
uint32 p = ror32(crossPattern, 1);
|
|
p = (p & 0xFFFF0000) | width;
|
|
|
|
// Fill every other pixel with the colour
|
|
for (; (p & 0xFFFF) != 0; p--)
|
|
{
|
|
p = p ^ 0x80000000;
|
|
if (p & 0x80000000)
|
|
{
|
|
*dst = colour & 0xFF;
|
|
}
|
|
dst++;
|
|
}
|
|
crossPattern ^= 1;
|
|
dst = nextdst;
|
|
}
|
|
}
|
|
else if (colour & 0x2000000)
|
|
{
|
|
assert(false);
|
|
}
|
|
else if (colour & 0x4000000)
|
|
{
|
|
uint8 * dst = startY * (dpi->width + dpi->pitch) + startX + dpi->bits;
|
|
|
|
// The pattern loops every 15 lines this is which
|
|
// part the pattern is on.
|
|
sint32 patternY = (startY + dpi->y) % 16;
|
|
|
|
// The pattern loops every 15 pixels this is which
|
|
// part the pattern is on.
|
|
sint32 startPatternX = (startX + dpi->x) % 16;
|
|
sint32 patternX = startPatternX;
|
|
|
|
const uint16 * patternsrc = Patterns[colour >> 28]; // or possibly uint8)[esi*4] ?
|
|
|
|
for (sint32 numLines = height; numLines > 0; numLines--)
|
|
{
|
|
uint8 * nextdst = dst + dpi->width + dpi->pitch;
|
|
uint16 pattern = patternsrc[patternY];
|
|
|
|
for (sint32 numPixels = width; numPixels > 0; numPixels--)
|
|
{
|
|
if (pattern & (1 << patternX))
|
|
{
|
|
*dst = colour & 0xFF;
|
|
}
|
|
patternX = (patternX + 1) % 16;
|
|
dst++;
|
|
}
|
|
patternX = startPatternX;
|
|
patternY = (patternY + 1) % 16;
|
|
dst = nextdst;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
uint8 * dst = startY * (dpi->width + dpi->pitch) + startX + dpi->bits;
|
|
for (sint32 i = 0; i < height; i++)
|
|
{
|
|
std::fill_n(dst, width, colour & 0xFF);
|
|
dst += dpi->width + dpi->pitch;
|
|
}
|
|
}
|
|
}
|
|
|
|
void X8DrawingContext::FilterRect(FILTER_PALETTE_ID palette, sint32 left, sint32 top, sint32 right, sint32 bottom)
|
|
{
|
|
rct_drawpixelinfo * dpi = _dpi;
|
|
|
|
if (left > right) return;
|
|
if (top > bottom) return;
|
|
if (dpi->x > right) return;
|
|
if (left >= dpi->x + dpi->width) return;
|
|
if (bottom < dpi->y) return;
|
|
if (top >= dpi->y + dpi->height) return;
|
|
|
|
sint32 startX = left - dpi->x;
|
|
if (startX < 0)
|
|
{
|
|
startX = 0;
|
|
}
|
|
|
|
sint32 endX = right - dpi->x + 1;
|
|
if (endX > dpi->width)
|
|
{
|
|
endX = dpi->width;
|
|
}
|
|
|
|
sint32 startY = top - dpi->y;
|
|
if (startY < 0)
|
|
{
|
|
startY = 0;
|
|
}
|
|
|
|
sint32 endY = bottom - dpi->y + 1;
|
|
if (endY > dpi->height)
|
|
{
|
|
endY = dpi->height;
|
|
}
|
|
|
|
sint32 width = endX - startX;
|
|
sint32 height = endY - startY;
|
|
|
|
|
|
//0x2000000
|
|
// 00678B7E 00678C83
|
|
// Location in screen buffer?
|
|
uint8 * dst = dpi->bits + (uint32)((startY >> (dpi->zoom_level)) * ((dpi->width >> dpi->zoom_level) + dpi->pitch) + (startX >> dpi->zoom_level));
|
|
|
|
// Find colour in colour table?
|
|
uint16 g1Index = palette_to_g1_offset[palette];
|
|
auto g1Element = gfx_get_g1_element(g1Index);
|
|
if (g1Element != nullptr)
|
|
{
|
|
auto g1Bits = g1Element->offset;
|
|
const sint32 scaled_width = width >> dpi->zoom_level;
|
|
const sint32 step = ((dpi->width >> dpi->zoom_level) + dpi->pitch);
|
|
|
|
// Fill the rectangle with the colours from the colour table
|
|
for (sint32 i = 0; i < height >> dpi->zoom_level; i++)
|
|
{
|
|
uint8 * nextdst = dst + step * i;
|
|
for (sint32 j = 0; j < scaled_width; j++)
|
|
{
|
|
*(nextdst + j) = g1Bits[*(nextdst + j)];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void X8DrawingContext::DrawLine(uint32 colour, sint32 x1, sint32 y1, sint32 x2, sint32 y2)
|
|
{
|
|
gfx_draw_line_software(_dpi, x1, y1, x2, y2, colour);
|
|
}
|
|
|
|
void X8DrawingContext::DrawSprite(uint32 image, sint32 x, sint32 y, uint32 tertiaryColour)
|
|
{
|
|
gfx_draw_sprite_software(_dpi, image, x, y, tertiaryColour);
|
|
}
|
|
|
|
void X8DrawingContext::DrawSpriteRawMasked(sint32 x, sint32 y, uint32 maskImage, uint32 colourImage)
|
|
{
|
|
gfx_draw_sprite_raw_masked_software(_dpi, x, y, maskImage, colourImage);
|
|
}
|
|
|
|
void X8DrawingContext::DrawSpriteSolid(uint32 image, sint32 x, sint32 y, uint8 colour)
|
|
{
|
|
uint8 palette[256];
|
|
memset(palette, colour, 256);
|
|
palette[0] = 0;
|
|
|
|
image &= 0x7FFFF;
|
|
gfx_draw_sprite_palette_set_software(_dpi, image | IMAGE_TYPE_REMAP, x, y, palette, nullptr);
|
|
}
|
|
|
|
void X8DrawingContext::DrawGlyph(uint32 image, sint32 x, sint32 y, uint8 * palette)
|
|
{
|
|
gfx_draw_sprite_palette_set_software(_dpi, image, x, y, palette, nullptr);
|
|
}
|
|
|
|
void X8DrawingContext::SetDPI(rct_drawpixelinfo * dpi)
|
|
{
|
|
_dpi = dpi;
|
|
}
|