mirror of
https://github.com/juce-framework/JUCE.git
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1590 lines
58 KiB
C++
1590 lines
58 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE library - "Jules' Utility Class Extensions"
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Copyright 2004-9 by Raw Material Software Ltd.
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------------------------------------------------------------------------------
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JUCE can be redistributed and/or modified under the terms of the GNU General
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Public License (Version 2), as published by the Free Software Foundation.
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A copy of the license is included in the JUCE distribution, or can be found
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online at www.gnu.org/licenses.
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JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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------------------------------------------------------------------------------
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To release a closed-source product which uses JUCE, commercial licenses are
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available: visit www.rawmaterialsoftware.com/juce for more information.
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==============================================================================
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*/
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#include "../../../core/juce_StandardHeader.h"
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BEGIN_JUCE_NAMESPACE
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#include "juce_LowLevelGraphicsSoftwareRenderer.h"
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#include "juce_EdgeTable.h"
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#include "../imaging/juce_Image.h"
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#include "../colour/juce_PixelFormats.h"
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#include "../geometry/juce_PathStrokeType.h"
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#include "../geometry/juce_Rectangle.h"
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#include "../../../core/juce_SystemStats.h"
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#include "../../../core/juce_Singleton.h"
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#include "../../../utilities/juce_DeletedAtShutdown.h"
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#if (JUCE_WINDOWS || JUCE_LINUX) && ! JUCE_64BIT
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#define JUCE_USE_SSE_INSTRUCTIONS 1
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#endif
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#if JUCE_MSVC && JUCE_DEBUG
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#pragma warning (disable: 4714) // warning about forcedinline methods not being inlined
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#endif
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#if JUCE_MSVC
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#pragma warning (push)
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#pragma warning (disable: 4127) // "expression is constant" warning
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#endif
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//==============================================================================
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template <class PixelType, bool replaceExisting = false>
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class SolidColourEdgeTableRenderer
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{
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public:
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SolidColourEdgeTableRenderer (const Image::BitmapData& data_, const PixelARGB& colour) throw()
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: data (data_),
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sourceColour (colour)
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{
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if (sizeof (PixelType) == 3)
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{
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areRGBComponentsEqual = sourceColour.getRed() == sourceColour.getGreen()
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&& sourceColour.getGreen() == sourceColour.getBlue();
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filler[0].set (sourceColour);
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filler[1].set (sourceColour);
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filler[2].set (sourceColour);
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filler[3].set (sourceColour);
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}
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}
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forcedinline void setEdgeTableYPos (const int y) throw()
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{
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linePixels = (PixelType*) data.getLinePointer (y);
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}
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forcedinline void handleEdgeTablePixel (const int x, const int alphaLevel) const throw()
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{
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if (replaceExisting)
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linePixels[x].set (sourceColour);
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else
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linePixels[x].blend (sourceColour, alphaLevel);
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}
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forcedinline void handleEdgeTableLine (const int x, int width, const int alphaLevel) const throw()
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{
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PixelARGB p (sourceColour);
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p.multiplyAlpha (alphaLevel);
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PixelType* dest = linePixels + x;
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if (replaceExisting || p.getAlpha() >= 0xff)
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replaceLine (dest, p, width);
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else
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blendLine (dest, p, width);
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}
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private:
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const Image::BitmapData& data;
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PixelType* linePixels;
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PixelARGB sourceColour;
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PixelRGB filler [4];
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bool areRGBComponentsEqual;
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forcedinline void blendLine (PixelType* dest, const PixelARGB& colour, int width) const throw()
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{
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do
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{
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dest->blend (colour);
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++dest;
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} while (--width > 0);
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}
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forcedinline void replaceLine (PixelRGB* dest, const PixelARGB& colour, int width) const throw()
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{
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if (areRGBComponentsEqual) // if all the component values are the same, we can cheat..
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{
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memset (dest, colour.getRed(), width * 3);
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}
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else
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{
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if (width >> 5)
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{
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const int* const intFiller = (const int*) filler;
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while (width > 8 && (((pointer_sized_int) dest) & 7) != 0)
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{
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dest->set (colour);
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++dest;
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--width;
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}
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while (width > 4)
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{
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((int*) dest) [0] = intFiller[0];
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((int*) dest) [1] = intFiller[1];
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((int*) dest) [2] = intFiller[2];
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dest = (PixelRGB*) (((uint8*) dest) + 12);
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width -= 4;
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}
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}
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while (--width >= 0)
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{
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dest->set (colour);
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++dest;
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}
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}
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}
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forcedinline void replaceLine (PixelAlpha* dest, const PixelARGB& colour, int width) const throw()
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{
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memset (dest, colour.getAlpha(), width);
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}
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forcedinline void replaceLine (PixelARGB* dest, const PixelARGB& colour, int width) const throw()
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{
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do
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{
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dest->set (colour);
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++dest;
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} while (--width > 0);
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}
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SolidColourEdgeTableRenderer (const SolidColourEdgeTableRenderer&);
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const SolidColourEdgeTableRenderer& operator= (const SolidColourEdgeTableRenderer&);
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};
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//==============================================================================
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class LinearGradientPixelGenerator
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{
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public:
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LinearGradientPixelGenerator (const ColourGradient& gradient, const AffineTransform& transform, const PixelARGB* const lookupTable_, const int numEntries_)
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: lookupTable (lookupTable_), numEntries (numEntries_)
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{
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jassert (numEntries_ >= 0);
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float x1 = gradient.x1;
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float y1 = gradient.y1;
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float x2 = gradient.x2;
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float y2 = gradient.y2;
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if (! transform.isIdentity())
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{
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const Line l (x2, y2, x1, y1);
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const Point p3 = l.getPointAlongLine (0.0, 100.0f);
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float x3 = p3.getX();
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float y3 = p3.getY();
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transform.transformPoint (x1, y1);
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transform.transformPoint (x2, y2);
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transform.transformPoint (x3, y3);
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const Line l2 (x2, y2, x3, y3);
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const float prop = l2.findNearestPointTo (x1, y1);
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const Point newP2 (l2.getPointAlongLineProportionally (prop));
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x2 = newP2.getX();
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y2 = newP2.getY();
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}
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vertical = fabs (x1 - x2) < 0.001f;
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horizontal = fabs (y1 - y2) < 0.001f;
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if (vertical)
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{
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scale = roundDoubleToInt ((numEntries << (int) numScaleBits) / (double) (y2 - y1));
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start = roundDoubleToInt (y1 * scale);
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}
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else if (horizontal)
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{
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scale = roundDoubleToInt ((numEntries << (int) numScaleBits) / (double) (x2 - x1));
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start = roundDoubleToInt (x1 * scale);
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}
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else
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{
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grad = (y2 - y1) / (double) (x1 - x2);
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yTerm = y1 - x1 / grad;
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scale = roundDoubleToInt ((numEntries << (int) numScaleBits) / (yTerm * grad - (y2 * grad - x2)));
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grad *= scale;
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}
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}
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forcedinline void setY (const int y) throw()
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{
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if (vertical)
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linePix = lookupTable [jlimit (0, numEntries, (y * scale - start) >> (int) numScaleBits)];
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else if (! horizontal)
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start = roundDoubleToInt ((y - yTerm) * grad);
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}
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forcedinline const PixelARGB getPixel (const int x) const throw()
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{
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return vertical ? linePix
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: lookupTable [jlimit (0, numEntries, (x * scale - start) >> (int) numScaleBits)];
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}
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private:
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const PixelARGB* const lookupTable;
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const int numEntries;
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PixelARGB linePix;
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int start, scale;
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double grad, yTerm;
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bool vertical, horizontal;
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enum { numScaleBits = 12 };
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LinearGradientPixelGenerator (const LinearGradientPixelGenerator&);
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const LinearGradientPixelGenerator& operator= (const LinearGradientPixelGenerator&);
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};
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//==============================================================================
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class RadialGradientPixelGenerator
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{
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public:
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RadialGradientPixelGenerator (const ColourGradient& gradient, const AffineTransform&,
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const PixelARGB* const lookupTable_, const int numEntries_) throw()
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: lookupTable (lookupTable_),
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numEntries (numEntries_),
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gx1 (gradient.x1),
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gy1 (gradient.y1)
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{
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jassert (numEntries_ >= 0);
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const float dx = gradient.x1 - gradient.x2;
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const float dy = gradient.y1 - gradient.y2;
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maxDist = dx * dx + dy * dy;
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invScale = numEntries / sqrt (maxDist);
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jassert (roundDoubleToInt (sqrt (maxDist) * invScale) <= numEntries);
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}
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forcedinline void setY (const int y) throw()
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{
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dy = y - gy1;
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dy *= dy;
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}
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forcedinline const PixelARGB getPixel (const int px) const throw()
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{
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double x = px - gx1;
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x *= x;
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x += dy;
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return lookupTable [x >= maxDist ? numEntries : roundDoubleToInt (sqrt (x) * invScale)];
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}
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protected:
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const PixelARGB* const lookupTable;
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const int numEntries;
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const double gx1, gy1;
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double maxDist, invScale, dy;
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RadialGradientPixelGenerator (const RadialGradientPixelGenerator&);
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const RadialGradientPixelGenerator& operator= (const RadialGradientPixelGenerator&);
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};
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//==============================================================================
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class TransformedRadialGradientPixelGenerator : public RadialGradientPixelGenerator
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{
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public:
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TransformedRadialGradientPixelGenerator (const ColourGradient& gradient, const AffineTransform& transform,
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const PixelARGB* const lookupTable_, const int numEntries_) throw()
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: RadialGradientPixelGenerator (gradient, transform, lookupTable_, numEntries_),
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inverseTransform (transform.inverted())
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{
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tM10 = inverseTransform.mat10;
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tM00 = inverseTransform.mat00;
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}
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forcedinline void setY (const int y) throw()
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{
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lineYM01 = inverseTransform.mat01 * y + inverseTransform.mat02 - gx1;
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lineYM11 = inverseTransform.mat11 * y + inverseTransform.mat12 - gy1;
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}
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forcedinline const PixelARGB getPixel (const int px) const throw()
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{
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double x = px;
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const double y = tM10 * x + lineYM11;
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x = tM00 * x + lineYM01;
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x *= x;
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x += y * y;
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if (x >= maxDist)
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return lookupTable [numEntries];
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else
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return lookupTable [jmin (numEntries, roundDoubleToInt (sqrt (x) * invScale))];
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}
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private:
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double tM10, tM00, lineYM01, lineYM11;
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const AffineTransform inverseTransform;
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TransformedRadialGradientPixelGenerator (const TransformedRadialGradientPixelGenerator&);
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const TransformedRadialGradientPixelGenerator& operator= (const TransformedRadialGradientPixelGenerator&);
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};
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//==============================================================================
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template <class PixelType, class GradientType>
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class GradientEdgeTableRenderer : public GradientType
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{
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public:
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GradientEdgeTableRenderer (const Image::BitmapData& destData_, const ColourGradient& gradient, const AffineTransform& transform,
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const PixelARGB* const lookupTable, const int numEntries) throw()
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: GradientType (gradient, transform, lookupTable, numEntries - 1),
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destData (destData_)
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{
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}
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forcedinline void setEdgeTableYPos (const int y) throw()
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{
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linePixels = (PixelType*) destData.getLinePointer (y);
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GradientType::setY (y);
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}
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forcedinline void handleEdgeTablePixel (const int x, const int alphaLevel) const throw()
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{
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linePixels[x].blend (GradientType::getPixel (x), alphaLevel);
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}
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forcedinline void handleEdgeTableLine (int x, int width, const int alphaLevel) const throw()
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{
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PixelType* dest = linePixels + x;
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if (alphaLevel < 0xff)
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{
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do
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{
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(dest++)->blend (GradientType::getPixel (x++), alphaLevel);
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} while (--width > 0);
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}
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else
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{
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do
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{
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(dest++)->blend (GradientType::getPixel (x++));
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} while (--width > 0);
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}
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}
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private:
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const Image::BitmapData& destData;
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PixelType* linePixels;
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GradientEdgeTableRenderer (const GradientEdgeTableRenderer&);
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const GradientEdgeTableRenderer& operator= (const GradientEdgeTableRenderer&);
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};
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//==============================================================================
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static forcedinline int safeModulo (int n, const int divisor) throw()
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{
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jassert (divisor > 0);
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n %= divisor;
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return (n < 0) ? (n + divisor) : n;
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}
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//==============================================================================
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template <class DestPixelType, class SrcPixelType, bool repeatPattern>
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class ImageFillEdgeTableRenderer
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{
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public:
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ImageFillEdgeTableRenderer (const Image::BitmapData& destData_,
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const Image::BitmapData& srcData_,
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const int extraAlpha_,
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const int x, const int y) throw()
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: destData (destData_),
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srcData (srcData_),
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extraAlpha (extraAlpha_ + 1),
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xOffset (repeatPattern ? safeModulo (x, srcData_.width) - srcData_.width : x),
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yOffset (repeatPattern ? safeModulo (y, srcData_.height) - srcData_.height : y)
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{
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}
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forcedinline void setEdgeTableYPos (int y) throw()
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{
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linePixels = (DestPixelType*) destData.getLinePointer (y);
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y -= yOffset;
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if (repeatPattern)
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{
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jassert (y >= 0);
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y %= srcData.height;
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}
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sourceLineStart = (SrcPixelType*) srcData.getLinePointer (y);
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}
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forcedinline void handleEdgeTablePixel (int x, int alphaLevel) const throw()
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{
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alphaLevel = (alphaLevel * extraAlpha) >> 8;
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linePixels[x].blend (sourceLineStart [repeatPattern ? ((x - xOffset) % srcData.width) : (x - xOffset)], alphaLevel);
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}
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forcedinline void handleEdgeTableLine (int x, int width, int alphaLevel) const throw()
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{
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DestPixelType* dest = linePixels + x;
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alphaLevel = (alphaLevel * extraAlpha) >> 8;
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x -= xOffset;
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jassert (repeatPattern || (x >= 0 && x + width <= srcData.width));
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if (alphaLevel < 0xfe)
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{
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do
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{
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dest++ ->blend (sourceLineStart [repeatPattern ? (x++ % srcData.width) : x++], alphaLevel);
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} while (--width > 0);
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}
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else
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{
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if (repeatPattern)
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{
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do
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{
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dest++ ->blend (sourceLineStart [x++ % srcData.width]);
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} while (--width > 0);
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}
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else
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{
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copyRow (dest, sourceLineStart + x, width);
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}
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}
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}
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void clipEdgeTableLine (EdgeTable& et, int x, int y, int width) throw()
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{
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jassert (x - xOffset >= 0 && x + width - xOffset <= srcData.width);
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SrcPixelType* sourceLineStart = (SrcPixelType*) srcData.getLinePointer (y - yOffset);
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uint8* mask = (uint8*) (sourceLineStart + x - xOffset);
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if (sizeof (SrcPixelType) == sizeof (PixelARGB))
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mask += PixelARGB::indexA;
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et.clipLineToMask (x, y, mask, sizeof (SrcPixelType), width);
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}
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private:
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const Image::BitmapData& destData;
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const Image::BitmapData& srcData;
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const int extraAlpha, xOffset, yOffset;
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DestPixelType* linePixels;
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SrcPixelType* sourceLineStart;
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|
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template <class PixelType1, class PixelType2>
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forcedinline static void copyRow (PixelType1* dest, PixelType2* src, int width) throw()
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{
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do
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{
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dest++ ->blend (*src++);
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} while (--width > 0);
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}
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forcedinline static void copyRow (PixelRGB* dest, PixelRGB* src, int width) throw()
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{
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memcpy (dest, src, width * sizeof (PixelRGB));
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}
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ImageFillEdgeTableRenderer (const ImageFillEdgeTableRenderer&);
|
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const ImageFillEdgeTableRenderer& operator= (const ImageFillEdgeTableRenderer&);
|
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};
|
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|
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//==============================================================================
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template <class DestPixelType, class SrcPixelType, bool repeatPattern>
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class TransformedImageFillEdgeTableRenderer
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{
|
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public:
|
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TransformedImageFillEdgeTableRenderer (const Image::BitmapData& destData_,
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const Image::BitmapData& srcData_,
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const AffineTransform& transform,
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const int extraAlpha_,
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const bool betterQuality_) throw()
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|
: interpolator (transform),
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destData (destData_),
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srcData (srcData_),
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extraAlpha (extraAlpha_ + 1),
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betterQuality (betterQuality_),
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pixelOffset (betterQuality_ ? 0.5f : 0.0f),
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pixelOffsetInt (betterQuality_ ? -128 : 0),
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maxX (srcData_.width - 1),
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maxY (srcData_.height - 1)
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{
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}
|
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|
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forcedinline void setEdgeTableYPos (const int newY) throw()
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{
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y = newY;
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linePixels = (DestPixelType*) destData.getLinePointer (newY);
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}
|
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|
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forcedinline void handleEdgeTablePixel (const int x, int alphaLevel) throw()
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|
{
|
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alphaLevel *= extraAlpha;
|
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alphaLevel >>= 8;
|
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|
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SrcPixelType p;
|
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generate (&p, x, 1);
|
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|
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linePixels[x].blend (p, alphaLevel);
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}
|
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|
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forcedinline void handleEdgeTableLine (const int x, int width, int alphaLevel) throw()
|
|
{
|
|
SrcPixelType* span = (SrcPixelType*) alloca (sizeof (SrcPixelType) * width);
|
|
generate (span, x, width);
|
|
|
|
DestPixelType* dest = linePixels + x;
|
|
alphaLevel *= extraAlpha;
|
|
alphaLevel >>= 8;
|
|
|
|
if (alphaLevel < 0xfe)
|
|
{
|
|
do
|
|
{
|
|
dest++ ->blend (*span++, alphaLevel);
|
|
} while (--width > 0);
|
|
}
|
|
else
|
|
{
|
|
do
|
|
{
|
|
dest++ ->blend (*span++);
|
|
} while (--width > 0);
|
|
}
|
|
}
|
|
|
|
void clipEdgeTableLine (EdgeTable& et, int x, int y_, int width) throw()
|
|
{
|
|
uint8* mask = (uint8*) alloca (sizeof (SrcPixelType) * width);
|
|
y = y_;
|
|
generate ((SrcPixelType*) mask, x, width);
|
|
|
|
if (sizeof (SrcPixelType) == sizeof (PixelARGB))
|
|
mask += PixelARGB::indexA;
|
|
|
|
et.clipLineToMask (x, y_, mask, sizeof (SrcPixelType), width);
|
|
}
|
|
|
|
private:
|
|
//==============================================================================
|
|
void generate (PixelARGB* dest, const int x, int numPixels) throw()
|
|
{
|
|
this->interpolator.setStartOfLine (x + pixelOffset, y + pixelOffset, numPixels);
|
|
|
|
do
|
|
{
|
|
int hiResX, hiResY;
|
|
this->interpolator.next (hiResX, hiResY);
|
|
hiResX += pixelOffsetInt;
|
|
hiResY += pixelOffsetInt;
|
|
|
|
int loResX = hiResX >> 8;
|
|
int loResY = hiResY >> 8;
|
|
|
|
if (repeatPattern)
|
|
{
|
|
loResX = safeModulo (loResX, srcData.width);
|
|
loResY = safeModulo (loResY, srcData.height);
|
|
}
|
|
|
|
if (betterQuality
|
|
&& ((unsigned int) loResX) < (unsigned int) maxX
|
|
&& ((unsigned int) loResY) < (unsigned int) maxY)
|
|
{
|
|
uint32 c[4] = { 256 * 128, 256 * 128, 256 * 128, 256 * 128 };
|
|
hiResX &= 255;
|
|
hiResY &= 255;
|
|
|
|
const uint8* src = this->srcData.getPixelPointer (loResX, loResY);
|
|
|
|
uint32 weight = (256 - hiResX) * (256 - hiResY);
|
|
c[0] += weight * src[0];
|
|
c[1] += weight * src[1];
|
|
c[2] += weight * src[2];
|
|
c[3] += weight * src[3];
|
|
|
|
weight = hiResX * (256 - hiResY);
|
|
c[0] += weight * src[4];
|
|
c[1] += weight * src[5];
|
|
c[2] += weight * src[6];
|
|
c[3] += weight * src[7];
|
|
|
|
src += this->srcData.lineStride;
|
|
|
|
weight = (256 - hiResX) * hiResY;
|
|
c[0] += weight * src[0];
|
|
c[1] += weight * src[1];
|
|
c[2] += weight * src[2];
|
|
c[3] += weight * src[3];
|
|
|
|
weight = hiResX * hiResY;
|
|
c[0] += weight * src[4];
|
|
c[1] += weight * src[5];
|
|
c[2] += weight * src[6];
|
|
c[3] += weight * src[7];
|
|
|
|
dest->setARGB ((uint8) (c[PixelARGB::indexA] >> 16),
|
|
(uint8) (c[PixelARGB::indexR] >> 16),
|
|
(uint8) (c[PixelARGB::indexG] >> 16),
|
|
(uint8) (c[PixelARGB::indexB] >> 16));
|
|
}
|
|
else
|
|
{
|
|
if (! repeatPattern)
|
|
{
|
|
// Beyond the edges, just repeat the edge pixels and leave the anti-aliasing to be handled by the edgetable
|
|
if (loResX < 0) loResX = 0;
|
|
if (loResY < 0) loResY = 0;
|
|
if (loResX > maxX) loResX = maxX;
|
|
if (loResY > maxY) loResY = maxY;
|
|
}
|
|
|
|
dest->set (*(const PixelARGB*) this->srcData.getPixelPointer (loResX, loResY));
|
|
}
|
|
|
|
++dest;
|
|
|
|
} while (--numPixels > 0);
|
|
}
|
|
|
|
void generate (PixelRGB* dest, const int x, int numPixels) throw()
|
|
{
|
|
this->interpolator.setStartOfLine (x + pixelOffset, y + pixelOffset, numPixels);
|
|
|
|
do
|
|
{
|
|
int hiResX, hiResY;
|
|
this->interpolator.next (hiResX, hiResY);
|
|
hiResX += pixelOffsetInt;
|
|
hiResY += pixelOffsetInt;
|
|
int loResX = hiResX >> 8;
|
|
int loResY = hiResY >> 8;
|
|
|
|
if (repeatPattern)
|
|
{
|
|
loResX = safeModulo (loResX, srcData.width);
|
|
loResY = safeModulo (loResY, srcData.height);
|
|
}
|
|
|
|
if (betterQuality
|
|
&& ((unsigned int) loResX) < (unsigned int) maxX
|
|
&& ((unsigned int) loResY) < (unsigned int) maxY)
|
|
{
|
|
uint32 c[3] = { 256 * 128, 256 * 128, 256 * 128 };
|
|
hiResX &= 255;
|
|
hiResY &= 255;
|
|
|
|
const uint8* src = this->srcData.getPixelPointer (loResX, loResY);
|
|
|
|
unsigned int weight = (256 - hiResX) * (256 - hiResY);
|
|
c[0] += weight * src[0];
|
|
c[1] += weight * src[1];
|
|
c[2] += weight * src[2];
|
|
|
|
weight = hiResX * (256 - hiResY);
|
|
c[0] += weight * src[3];
|
|
c[1] += weight * src[4];
|
|
c[2] += weight * src[5];
|
|
|
|
src += this->srcData.lineStride;
|
|
|
|
weight = (256 - hiResX) * hiResY;
|
|
c[0] += weight * src[0];
|
|
c[1] += weight * src[1];
|
|
c[2] += weight * src[2];
|
|
|
|
weight = hiResX * hiResY;
|
|
c[0] += weight * src[3];
|
|
c[1] += weight * src[4];
|
|
c[2] += weight * src[5];
|
|
|
|
dest->setARGB ((uint8) 255,
|
|
(uint8) (c[PixelRGB::indexR] >> 16),
|
|
(uint8) (c[PixelRGB::indexG] >> 16),
|
|
(uint8) (c[PixelRGB::indexB] >> 16));
|
|
}
|
|
else
|
|
{
|
|
if (! repeatPattern)
|
|
{
|
|
// Beyond the edges, just repeat the edge pixels and leave the anti-aliasing to be handled by the edgetable
|
|
if (loResX < 0) loResX = 0;
|
|
if (loResY < 0) loResY = 0;
|
|
if (loResX > maxX) loResX = maxX;
|
|
if (loResY > maxY) loResY = maxY;
|
|
}
|
|
|
|
dest->set (*(const PixelRGB*) this->srcData.getPixelPointer (loResX, loResY));
|
|
}
|
|
|
|
++dest;
|
|
|
|
} while (--numPixels > 0);
|
|
}
|
|
|
|
void generate (PixelAlpha* dest, const int x, int numPixels) throw()
|
|
{
|
|
this->interpolator.setStartOfLine (x + pixelOffset, y + pixelOffset, numPixels);
|
|
|
|
do
|
|
{
|
|
int hiResX, hiResY;
|
|
this->interpolator.next (hiResX, hiResY);
|
|
hiResX += pixelOffsetInt;
|
|
hiResY += pixelOffsetInt;
|
|
int loResX = hiResX >> 8;
|
|
int loResY = hiResY >> 8;
|
|
|
|
if (repeatPattern)
|
|
{
|
|
loResX = safeModulo (loResX, srcData.width);
|
|
loResY = safeModulo (loResY, srcData.height);
|
|
}
|
|
|
|
if (betterQuality
|
|
&& ((unsigned int) loResX) < (unsigned int) maxX
|
|
&& ((unsigned int) loResY) < (unsigned int) maxY)
|
|
{
|
|
hiResX &= 255;
|
|
hiResY &= 255;
|
|
|
|
const uint8* src = this->srcData.getPixelPointer (loResX, loResY);
|
|
uint32 c = 256 * 128;
|
|
c += src[0] * ((256 - hiResX) * (256 - hiResY));
|
|
c += src[1] * (hiResX * (256 - hiResY));
|
|
src += this->srcData.lineStride;
|
|
c += src[0] * ((256 - hiResX) * hiResY);
|
|
c += src[1] * (hiResX * hiResY);
|
|
|
|
*((uint8*) dest) = (uint8) c;
|
|
}
|
|
else
|
|
{
|
|
if (! repeatPattern)
|
|
{
|
|
// Beyond the edges, just repeat the edge pixels and leave the anti-aliasing to be handled by the edgetable
|
|
if (loResX < 0) loResX = 0;
|
|
if (loResY < 0) loResY = 0;
|
|
if (loResX > maxX) loResX = maxX;
|
|
if (loResY > maxY) loResY = maxY;
|
|
}
|
|
|
|
*((uint8*) dest) = *(this->srcData.getPixelPointer (loResX, loResY));
|
|
}
|
|
|
|
++dest;
|
|
|
|
} while (--numPixels > 0);
|
|
}
|
|
|
|
//==============================================================================
|
|
class TransformedImageSpanInterpolator
|
|
{
|
|
public:
|
|
TransformedImageSpanInterpolator (const AffineTransform& transform) throw()
|
|
: inverseTransform (transform.inverted())
|
|
{}
|
|
|
|
void setStartOfLine (float x, float y, const int numPixels) throw()
|
|
{
|
|
float x1 = x, y1 = y;
|
|
inverseTransform.transformPoint (x1, y1);
|
|
x += numPixels;
|
|
inverseTransform.transformPoint (x, y);
|
|
|
|
xBresenham.set ((int) (x1 * 256.0f), (int) (x * 256.0f), numPixels);
|
|
yBresenham.set ((int) (y1 * 256.0f), (int) (y * 256.0f), numPixels);
|
|
}
|
|
|
|
void next (int& x, int& y) throw()
|
|
{
|
|
x = xBresenham.n;
|
|
xBresenham.stepToNext();
|
|
y = yBresenham.n;
|
|
yBresenham.stepToNext();
|
|
}
|
|
|
|
private:
|
|
class BresenhamInterpolator
|
|
{
|
|
public:
|
|
BresenhamInterpolator() throw() {}
|
|
|
|
void set (const int n1, const int n2, const int numSteps_) throw()
|
|
{
|
|
numSteps = jmax (1, numSteps_);
|
|
step = (n2 - n1) / numSteps;
|
|
remainder = modulo = (n2 - n1) % numSteps;
|
|
n = n1;
|
|
|
|
if (modulo <= 0)
|
|
{
|
|
modulo += numSteps;
|
|
remainder += numSteps;
|
|
--step;
|
|
}
|
|
|
|
modulo -= numSteps;
|
|
}
|
|
|
|
forcedinline void stepToNext() throw()
|
|
{
|
|
modulo += remainder;
|
|
n += step;
|
|
|
|
if (modulo > 0)
|
|
{
|
|
modulo -= numSteps;
|
|
++n;
|
|
}
|
|
}
|
|
|
|
int n;
|
|
|
|
private:
|
|
int numSteps, step, modulo, remainder;
|
|
};
|
|
|
|
const AffineTransform inverseTransform;
|
|
BresenhamInterpolator xBresenham, yBresenham;
|
|
|
|
TransformedImageSpanInterpolator (const TransformedImageSpanInterpolator&);
|
|
const TransformedImageSpanInterpolator& operator= (const TransformedImageSpanInterpolator&);
|
|
};
|
|
|
|
//==============================================================================
|
|
TransformedImageSpanInterpolator interpolator;
|
|
const Image::BitmapData& destData;
|
|
const Image::BitmapData& srcData;
|
|
const int extraAlpha;
|
|
const bool betterQuality;
|
|
const float pixelOffset;
|
|
const int pixelOffsetInt, maxX, maxY;
|
|
int y;
|
|
DestPixelType* linePixels;
|
|
|
|
TransformedImageFillEdgeTableRenderer (const TransformedImageFillEdgeTableRenderer&);
|
|
const TransformedImageFillEdgeTableRenderer& operator= (const TransformedImageFillEdgeTableRenderer&);
|
|
};
|
|
|
|
//==============================================================================
|
|
class LLGCSavedState
|
|
{
|
|
public:
|
|
LLGCSavedState (const Rectangle& clip_, const int xOffset_, const int yOffset_,
|
|
const Font& font_, const FillType& fillType_,
|
|
const Graphics::ResamplingQuality interpolationQuality_) throw()
|
|
: edgeTable (new EdgeTableHolder (EdgeTable (clip_))),
|
|
xOffset (xOffset_), yOffset (yOffset_),
|
|
font (font_), fillType (fillType_),
|
|
interpolationQuality (interpolationQuality_)
|
|
{
|
|
}
|
|
|
|
LLGCSavedState (const LLGCSavedState& other) throw()
|
|
: edgeTable (other.edgeTable), xOffset (other.xOffset),
|
|
yOffset (other.yOffset), font (other.font),
|
|
fillType (other.fillType), interpolationQuality (other.interpolationQuality)
|
|
{
|
|
}
|
|
|
|
~LLGCSavedState() throw()
|
|
{
|
|
}
|
|
|
|
bool clipToRectangle (const Rectangle& r) throw()
|
|
{
|
|
dupeEdgeTableIfMultiplyReferenced();
|
|
edgeTable->edgeTable.clipToRectangle (r.translated (xOffset, yOffset));
|
|
return ! edgeTable->edgeTable.isEmpty();
|
|
}
|
|
|
|
bool clipToRectangleList (const RectangleList& r) throw()
|
|
{
|
|
dupeEdgeTableIfMultiplyReferenced();
|
|
RectangleList temp (r);
|
|
temp.offsetAll (xOffset, yOffset);
|
|
RectangleList totalArea (edgeTable->edgeTable.getMaximumBounds());
|
|
totalArea.subtract (temp);
|
|
|
|
for (RectangleList::Iterator i (totalArea); i.next();)
|
|
edgeTable->edgeTable.excludeRectangle (*i.getRectangle());
|
|
|
|
return ! edgeTable->edgeTable.isEmpty();
|
|
}
|
|
|
|
bool excludeClipRectangle (const Rectangle& r) throw()
|
|
{
|
|
dupeEdgeTableIfMultiplyReferenced();
|
|
edgeTable->edgeTable.excludeRectangle (r.translated (xOffset, yOffset));
|
|
return ! edgeTable->edgeTable.isEmpty();
|
|
}
|
|
|
|
void clipToPath (const Path& p, const AffineTransform& transform) throw()
|
|
{
|
|
dupeEdgeTableIfMultiplyReferenced();
|
|
EdgeTable et (edgeTable->edgeTable.getMaximumBounds(), p, transform.translated ((float) xOffset, (float) yOffset));
|
|
edgeTable->edgeTable.clipToEdgeTable (et);
|
|
}
|
|
|
|
//==============================================================================
|
|
void fillEdgeTable (Image& image, EdgeTable& et, const bool replaceContents = false) throw()
|
|
{
|
|
et.clipToEdgeTable (edgeTable->edgeTable);
|
|
|
|
Image::BitmapData destData (image, 0, 0, image.getWidth(), image.getHeight(), true);
|
|
|
|
if (fillType.isGradient())
|
|
{
|
|
jassert (! replaceContents); // that option is just for solid colours
|
|
|
|
ColourGradient g2 (*(fillType.gradient));
|
|
AffineTransform transform (fillType.transform.translated ((float) xOffset, (float) yOffset));
|
|
const bool isIdentity = transform.isOnlyTranslation();
|
|
|
|
if (isIdentity)
|
|
{
|
|
// If our translation doesn't involve any distortion, we can speed it up..
|
|
transform.transformPoint (g2.x1, g2.y1);
|
|
transform.transformPoint (g2.x2, g2.y2);
|
|
transform = AffineTransform::identity;
|
|
}
|
|
|
|
int numLookupEntries;
|
|
PixelARGB* const lookupTable = g2.createLookupTable (transform, numLookupEntries);
|
|
jassert (numLookupEntries > 0);
|
|
|
|
switch (image.getFormat())
|
|
{
|
|
case Image::ARGB: renderGradient <PixelARGB> (et, destData, g2, transform, lookupTable, numLookupEntries, isIdentity); break;
|
|
case Image::RGB: renderGradient <PixelRGB> (et, destData, g2, transform, lookupTable, numLookupEntries, isIdentity); break;
|
|
default: renderGradient <PixelAlpha> (et, destData, g2, transform, lookupTable, numLookupEntries, isIdentity); break;
|
|
}
|
|
|
|
juce_free (lookupTable);
|
|
}
|
|
else if (fillType.isTiledImage())
|
|
{
|
|
renderImage (image, *(fillType.image), Rectangle (0, 0, fillType.image->getWidth(), fillType.image->getHeight()),
|
|
fillType.transform, &et);
|
|
}
|
|
else
|
|
{
|
|
const PixelARGB fillColour (fillType.colour.getPixelARGB());
|
|
|
|
switch (image.getFormat())
|
|
{
|
|
case Image::ARGB: renderSolidFill2 <PixelARGB> (et, destData, fillColour, replaceContents); break;
|
|
case Image::RGB: renderSolidFill2 <PixelRGB> (et, destData, fillColour, replaceContents); break;
|
|
default: renderSolidFill2 <PixelAlpha> (et, destData, fillColour, replaceContents); break;
|
|
}
|
|
}
|
|
}
|
|
|
|
//==============================================================================
|
|
void renderImage (Image& destImage, const Image& sourceImage, const Rectangle& srcClip,
|
|
const AffineTransform& t, const EdgeTable* const tiledFillClipRegion) throw()
|
|
{
|
|
const AffineTransform transform (t.translated ((float) xOffset, (float) yOffset));
|
|
|
|
jassert (Rectangle (0, 0, sourceImage.getWidth(), sourceImage.getHeight()).contains (srcClip));
|
|
|
|
const Image::BitmapData destData (destImage, 0, 0, destImage.getWidth(), destImage.getHeight(), true);
|
|
const Image::BitmapData srcData (sourceImage, srcClip.getX(), srcClip.getY(), srcClip.getWidth(), srcClip.getHeight());
|
|
const int alpha = fillType.colour.getAlpha();
|
|
const bool betterQuality = (interpolationQuality != Graphics::lowResamplingQuality);
|
|
|
|
if (transform.isOnlyTranslation())
|
|
{
|
|
// If our translation doesn't involve any distortion, just use a simple blit..
|
|
const int tx = (int) (transform.getTranslationX() * 256.0f);
|
|
const int ty = (int) (transform.getTranslationY() * 256.0f);
|
|
|
|
if ((! betterQuality) || ((tx | ty) & 224) == 0)
|
|
{
|
|
const Rectangle srcRect (srcClip.translated ((tx + 128) >> 8, (ty + 128) >> 8));
|
|
|
|
if (tiledFillClipRegion != 0)
|
|
{
|
|
blittedRenderImage3 <true> (sourceImage, destImage, *tiledFillClipRegion, destData, srcData, alpha, srcRect.getX(), srcRect.getY());
|
|
}
|
|
else
|
|
{
|
|
EdgeTable et (srcRect.getIntersection (Rectangle (0, 0, destImage.getWidth(), destImage.getHeight())));
|
|
et.clipToEdgeTable (edgeTable->edgeTable);
|
|
|
|
if (! et.isEmpty())
|
|
blittedRenderImage3 <false> (sourceImage, destImage, et, destData, srcData, alpha, srcRect.getX(), srcRect.getY());
|
|
}
|
|
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (transform.isSingularity())
|
|
return;
|
|
|
|
if (tiledFillClipRegion != 0)
|
|
{
|
|
transformedRenderImage3 <true> (sourceImage, destImage, *tiledFillClipRegion, destData, srcData, alpha, transform, betterQuality);
|
|
}
|
|
else
|
|
{
|
|
Path p;
|
|
p.addRectangle (srcClip);
|
|
|
|
EdgeTable et (edgeTable->edgeTable.getMaximumBounds(), p, transform);
|
|
et.clipToEdgeTable (edgeTable->edgeTable);
|
|
|
|
if (! et.isEmpty())
|
|
transformedRenderImage3 <false> (sourceImage, destImage, et, destData, srcData, alpha, transform, betterQuality);
|
|
}
|
|
}
|
|
|
|
//==============================================================================
|
|
void clipToImageAlpha (const Image& image, const Rectangle& srcClip, const AffineTransform& t) throw()
|
|
{
|
|
if (! image.hasAlphaChannel())
|
|
{
|
|
Path p;
|
|
p.addRectangle (srcClip);
|
|
clipToPath (p, t);
|
|
return;
|
|
}
|
|
|
|
dupeEdgeTableIfMultiplyReferenced();
|
|
|
|
const AffineTransform transform (t.translated ((float) xOffset, (float) yOffset));
|
|
const Image::BitmapData srcData (image, srcClip.getX(), srcClip.getY(), srcClip.getWidth(), srcClip.getHeight());
|
|
const bool betterQuality = (interpolationQuality != Graphics::lowResamplingQuality);
|
|
EdgeTable& et = edgeTable->edgeTable;
|
|
|
|
if (transform.isOnlyTranslation())
|
|
{
|
|
// If our translation doesn't involve any distortion, just use a simple blit..
|
|
const int tx = (int) (transform.getTranslationX() * 256.0f);
|
|
const int ty = (int) (transform.getTranslationY() * 256.0f);
|
|
|
|
if ((! betterQuality) || ((tx | ty) & 224) == 0)
|
|
{
|
|
const int imageX = ((tx + 128) >> 8);
|
|
const int imageY = ((ty + 128) >> 8);
|
|
|
|
if (image.getFormat() == Image::ARGB)
|
|
straightClipImage <PixelARGB> (et, srcData, imageX, imageY);
|
|
else
|
|
straightClipImage <PixelAlpha> (et, srcData, imageX, imageY);
|
|
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (transform.isSingularity())
|
|
{
|
|
et.clipToRectangle (Rectangle());
|
|
return;
|
|
}
|
|
|
|
{
|
|
Path p;
|
|
p.addRectangle (0, 0, (float) srcData.width, (float) srcData.height);
|
|
EdgeTable et2 (et.getMaximumBounds(), p, transform);
|
|
et.clipToEdgeTable (et2);
|
|
}
|
|
|
|
if (! et.isEmpty())
|
|
{
|
|
if (image.getFormat() == Image::ARGB)
|
|
transformedClipImage <PixelARGB> (et, srcData, transform, betterQuality);
|
|
else
|
|
transformedClipImage <PixelAlpha> (et, srcData, transform, betterQuality);
|
|
}
|
|
}
|
|
|
|
template <class SrcPixelType>
|
|
void transformedClipImage (EdgeTable& et, const Image::BitmapData& srcData, const AffineTransform& transform, const bool betterQuality) throw()
|
|
{
|
|
TransformedImageFillEdgeTableRenderer <SrcPixelType, SrcPixelType, false> renderer (srcData, srcData, transform, 255, betterQuality);
|
|
|
|
for (int y = 0; y < et.getMaximumBounds().getHeight(); ++y)
|
|
renderer.clipEdgeTableLine (et, et.getMaximumBounds().getX(), y + et.getMaximumBounds().getY(),
|
|
et.getMaximumBounds().getWidth());
|
|
}
|
|
|
|
template <class SrcPixelType>
|
|
void straightClipImage (EdgeTable& et, const Image::BitmapData& srcData, int imageX, int imageY) throw()
|
|
{
|
|
Rectangle r (imageX, imageY, srcData.width, srcData.height);
|
|
et.clipToRectangle (r);
|
|
|
|
ImageFillEdgeTableRenderer <SrcPixelType, SrcPixelType, false> renderer (srcData, srcData, 255, imageX, imageY);
|
|
|
|
for (int y = 0; y < r.getHeight(); ++y)
|
|
renderer.clipEdgeTableLine (et, r.getX(), y + r.getY(), r.getWidth());
|
|
}
|
|
|
|
//==============================================================================
|
|
class EdgeTableHolder : public ReferenceCountedObject
|
|
{
|
|
public:
|
|
EdgeTableHolder (const EdgeTable& e) throw() : edgeTable (e) {}
|
|
|
|
EdgeTable edgeTable;
|
|
};
|
|
|
|
ReferenceCountedObjectPtr<EdgeTableHolder> edgeTable;
|
|
int xOffset, yOffset;
|
|
Font font;
|
|
FillType fillType;
|
|
Graphics::ResamplingQuality interpolationQuality;
|
|
|
|
private:
|
|
const LLGCSavedState& operator= (const LLGCSavedState&);
|
|
|
|
void dupeEdgeTableIfMultiplyReferenced() throw()
|
|
{
|
|
if (edgeTable->getReferenceCount() > 1)
|
|
edgeTable = new EdgeTableHolder (edgeTable->edgeTable);
|
|
}
|
|
|
|
//==============================================================================
|
|
template <class DestPixelType>
|
|
void renderGradient (EdgeTable& et, const Image::BitmapData& destData, const ColourGradient& g, const AffineTransform& transform,
|
|
const PixelARGB* const lookupTable, const int numLookupEntries, const bool isIdentity) throw()
|
|
{
|
|
jassert (destData.pixelStride == sizeof (DestPixelType));
|
|
|
|
if (g.isRadial)
|
|
{
|
|
if (isIdentity)
|
|
{
|
|
GradientEdgeTableRenderer <DestPixelType, RadialGradientPixelGenerator> renderer (destData, g, transform, lookupTable, numLookupEntries);
|
|
et.iterate (renderer);
|
|
}
|
|
else
|
|
{
|
|
GradientEdgeTableRenderer <DestPixelType, TransformedRadialGradientPixelGenerator> renderer (destData, g, transform, lookupTable, numLookupEntries);
|
|
et.iterate (renderer);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
GradientEdgeTableRenderer <DestPixelType, LinearGradientPixelGenerator> renderer (destData, g, transform, lookupTable, numLookupEntries);
|
|
et.iterate (renderer);
|
|
}
|
|
}
|
|
|
|
//==============================================================================
|
|
template <class DestPixelType, bool replaceContents>
|
|
void renderSolidFill1 (EdgeTable& et, const Image::BitmapData& destData, const PixelARGB& fillColour) throw()
|
|
{
|
|
jassert (destData.pixelStride == sizeof (DestPixelType));
|
|
SolidColourEdgeTableRenderer <DestPixelType, replaceContents> renderer (destData, fillColour);
|
|
et.iterate (renderer);
|
|
}
|
|
|
|
template <class DestPixelType>
|
|
void renderSolidFill2 (EdgeTable& et, const Image::BitmapData& destData, const PixelARGB& fillColour, const bool replaceContents) throw()
|
|
{
|
|
if (replaceContents)
|
|
renderSolidFill1 <DestPixelType, true> (et, destData, fillColour);
|
|
else
|
|
renderSolidFill1 <DestPixelType, false> (et, destData, fillColour);
|
|
}
|
|
|
|
//==============================================================================
|
|
template <class SrcPixelType, class DestPixelType, bool repeatPattern>
|
|
void transformedRenderImage1 (const EdgeTable& et, const Image::BitmapData& destData, const Image::BitmapData& srcData,
|
|
const int alpha, const AffineTransform& transform, const bool betterQuality) throw()
|
|
{
|
|
TransformedImageFillEdgeTableRenderer <DestPixelType, SrcPixelType, repeatPattern> renderer (destData, srcData, transform, alpha, betterQuality);
|
|
et.iterate (renderer);
|
|
}
|
|
|
|
template <class SrcPixelType, bool repeatPattern>
|
|
void transformedRenderImage2 (Image& destImage, const EdgeTable& et, const Image::BitmapData& destData, const Image::BitmapData& srcData,
|
|
const int alpha, const AffineTransform& transform, const bool betterQuality) throw()
|
|
{
|
|
switch (destImage.getFormat())
|
|
{
|
|
case Image::ARGB: transformedRenderImage1 <SrcPixelType, PixelARGB, repeatPattern> (et, destData, srcData, alpha, transform, betterQuality); break;
|
|
case Image::RGB: transformedRenderImage1 <SrcPixelType, PixelRGB, repeatPattern> (et, destData, srcData, alpha, transform, betterQuality); break;
|
|
default: transformedRenderImage1 <SrcPixelType, PixelAlpha, repeatPattern> (et, destData, srcData, alpha, transform, betterQuality); break;
|
|
}
|
|
}
|
|
|
|
template <bool repeatPattern>
|
|
void transformedRenderImage3 (const Image& srcImage, Image& destImage, const EdgeTable& et, const Image::BitmapData& destData, const Image::BitmapData& srcData,
|
|
const int alpha, const AffineTransform& transform, const bool betterQuality) throw()
|
|
{
|
|
switch (srcImage.getFormat())
|
|
{
|
|
case Image::ARGB: transformedRenderImage2 <PixelARGB, repeatPattern> (destImage, et, destData, srcData, alpha, transform, betterQuality); break;
|
|
case Image::RGB: transformedRenderImage2 <PixelRGB, repeatPattern> (destImage, et, destData, srcData, alpha, transform, betterQuality); break;
|
|
default: transformedRenderImage2 <PixelAlpha, repeatPattern> (destImage, et, destData, srcData, alpha, transform, betterQuality); break;
|
|
}
|
|
}
|
|
|
|
//==============================================================================
|
|
template <class SrcPixelType, class DestPixelType, bool repeatPattern>
|
|
void blittedRenderImage1 (const EdgeTable& et, const Image::BitmapData& destData, const Image::BitmapData& srcData,
|
|
const int alpha, int x, int y) throw()
|
|
{
|
|
ImageFillEdgeTableRenderer <DestPixelType, SrcPixelType, repeatPattern> renderer (destData, srcData, alpha, x, y);
|
|
et.iterate (renderer);
|
|
}
|
|
|
|
template <class SrcPixelType, bool repeatPattern>
|
|
void blittedRenderImage2 (Image& destImage, const EdgeTable& et, const Image::BitmapData& destData,
|
|
const Image::BitmapData& srcData, const int alpha, int x, int y) throw()
|
|
{
|
|
switch (destImage.getFormat())
|
|
{
|
|
case Image::ARGB: blittedRenderImage1 <SrcPixelType, PixelARGB, repeatPattern> (et, destData, srcData, alpha, x, y); break;
|
|
case Image::RGB: blittedRenderImage1 <SrcPixelType, PixelRGB, repeatPattern> (et, destData, srcData, alpha, x, y); break;
|
|
default: blittedRenderImage1 <SrcPixelType, PixelAlpha, repeatPattern> (et, destData, srcData, alpha, x, y); break;
|
|
}
|
|
}
|
|
|
|
template <bool repeatPattern>
|
|
void blittedRenderImage3 (const Image& srcImage, Image& destImage, const EdgeTable& et, const Image::BitmapData& destData,
|
|
const Image::BitmapData& srcData, const int alpha, int x, int y) throw()
|
|
{
|
|
switch (srcImage.getFormat())
|
|
{
|
|
case Image::ARGB: blittedRenderImage2 <PixelARGB, repeatPattern> (destImage, et, destData, srcData, alpha, x, y); break;
|
|
case Image::RGB: blittedRenderImage2 <PixelRGB, repeatPattern> (destImage, et, destData, srcData, alpha, x, y); break;
|
|
default: blittedRenderImage2 <PixelAlpha, repeatPattern> (destImage, et, destData, srcData, alpha, x, y); break;
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
//==============================================================================
|
|
LowLevelGraphicsSoftwareRenderer::LowLevelGraphicsSoftwareRenderer (Image& image_)
|
|
: image (image_),
|
|
stateStack (20)
|
|
{
|
|
currentState = new LLGCSavedState (Rectangle (0, 0, image_.getWidth(), image_.getHeight()),
|
|
0, 0, Font(), FillType(), Graphics::mediumResamplingQuality);
|
|
}
|
|
|
|
LowLevelGraphicsSoftwareRenderer::~LowLevelGraphicsSoftwareRenderer()
|
|
{
|
|
delete currentState;
|
|
}
|
|
|
|
bool LowLevelGraphicsSoftwareRenderer::isVectorDevice() const
|
|
{
|
|
return false;
|
|
}
|
|
|
|
//==============================================================================
|
|
void LowLevelGraphicsSoftwareRenderer::setOrigin (int x, int y)
|
|
{
|
|
currentState->xOffset += x;
|
|
currentState->yOffset += y;
|
|
}
|
|
|
|
bool LowLevelGraphicsSoftwareRenderer::clipToRectangle (const Rectangle& r)
|
|
{
|
|
return currentState->clipToRectangle (r);
|
|
}
|
|
|
|
bool LowLevelGraphicsSoftwareRenderer::clipToRectangleList (const RectangleList& clipRegion)
|
|
{
|
|
return currentState->clipToRectangleList (clipRegion);
|
|
}
|
|
|
|
void LowLevelGraphicsSoftwareRenderer::excludeClipRectangle (const Rectangle& r)
|
|
{
|
|
currentState->excludeClipRectangle (r);
|
|
}
|
|
|
|
void LowLevelGraphicsSoftwareRenderer::clipToPath (const Path& path, const AffineTransform& transform)
|
|
{
|
|
currentState->clipToPath (path, transform);
|
|
}
|
|
|
|
void LowLevelGraphicsSoftwareRenderer::clipToImageAlpha (const Image& sourceImage, const Rectangle& srcClip, const AffineTransform& transform)
|
|
{
|
|
currentState->clipToImageAlpha (sourceImage, srcClip, transform);
|
|
}
|
|
|
|
bool LowLevelGraphicsSoftwareRenderer::clipRegionIntersects (const Rectangle& r)
|
|
{
|
|
return currentState->edgeTable->edgeTable.getMaximumBounds()
|
|
.intersects (r.translated (currentState->xOffset, currentState->yOffset));
|
|
}
|
|
|
|
const Rectangle LowLevelGraphicsSoftwareRenderer::getClipBounds() const
|
|
{
|
|
return currentState->edgeTable->edgeTable.getMaximumBounds().translated (-currentState->xOffset, -currentState->yOffset);
|
|
}
|
|
|
|
bool LowLevelGraphicsSoftwareRenderer::isClipEmpty() const
|
|
{
|
|
return currentState->edgeTable->edgeTable.isEmpty();
|
|
}
|
|
|
|
//==============================================================================
|
|
void LowLevelGraphicsSoftwareRenderer::saveState()
|
|
{
|
|
stateStack.add (new LLGCSavedState (*currentState));
|
|
}
|
|
|
|
void LowLevelGraphicsSoftwareRenderer::restoreState()
|
|
{
|
|
LLGCSavedState* const top = stateStack.getLast();
|
|
|
|
if (top != 0)
|
|
{
|
|
delete currentState;
|
|
currentState = top;
|
|
stateStack.removeLast (1, false);
|
|
}
|
|
else
|
|
{
|
|
jassertfalse // trying to pop with an empty stack!
|
|
}
|
|
}
|
|
|
|
//==============================================================================
|
|
void LowLevelGraphicsSoftwareRenderer::setFill (const FillType& fillType)
|
|
{
|
|
currentState->fillType = fillType;
|
|
}
|
|
|
|
void LowLevelGraphicsSoftwareRenderer::setOpacity (float opacity)
|
|
{
|
|
currentState->fillType.colour = currentState->fillType.colour.withAlpha (opacity);
|
|
}
|
|
|
|
void LowLevelGraphicsSoftwareRenderer::setInterpolationQuality (Graphics::ResamplingQuality quality)
|
|
{
|
|
currentState->interpolationQuality = quality;
|
|
}
|
|
|
|
//==============================================================================
|
|
void LowLevelGraphicsSoftwareRenderer::fillRect (const Rectangle& r, const bool replaceExistingContents)
|
|
{
|
|
const Rectangle& totalClip = currentState->edgeTable->edgeTable.getMaximumBounds();
|
|
const Rectangle clipped (totalClip.getIntersection (r.translated (currentState->xOffset, currentState->yOffset)));
|
|
|
|
if (! clipped.isEmpty())
|
|
{
|
|
EdgeTable et (clipped);
|
|
currentState->fillEdgeTable (image, et, replaceExistingContents);
|
|
}
|
|
}
|
|
|
|
void LowLevelGraphicsSoftwareRenderer::fillPath (const Path& path, const AffineTransform& transform)
|
|
{
|
|
EdgeTable et (currentState->edgeTable->edgeTable.getMaximumBounds(),
|
|
path, transform.translated ((float) currentState->xOffset,
|
|
(float) currentState->yOffset));
|
|
|
|
currentState->fillEdgeTable (image, et);
|
|
}
|
|
|
|
void LowLevelGraphicsSoftwareRenderer::drawImage (const Image& sourceImage, const Rectangle& srcClip,
|
|
const AffineTransform& transform, const bool fillEntireClipAsTiles)
|
|
{
|
|
currentState->renderImage (image, sourceImage, srcClip, transform,
|
|
fillEntireClipAsTiles ? &(currentState->edgeTable->edgeTable) : 0);
|
|
}
|
|
|
|
//==============================================================================
|
|
void LowLevelGraphicsSoftwareRenderer::drawLine (double x1, double y1, double x2, double y2)
|
|
{
|
|
Path p;
|
|
p.addLineSegment ((float) x1, (float) y1, (float) x2, (float) y2, 1.0f);
|
|
fillPath (p, AffineTransform::identity);
|
|
}
|
|
|
|
void LowLevelGraphicsSoftwareRenderer::drawVerticalLine (const int x, double top, double bottom)
|
|
{
|
|
EdgeTable et ((float) (x + currentState->xOffset), (float) (top + currentState->yOffset), 1.0f, (float) (bottom - top));
|
|
currentState->fillEdgeTable (image, et);
|
|
}
|
|
|
|
void LowLevelGraphicsSoftwareRenderer::drawHorizontalLine (const int y, double left, double right)
|
|
{
|
|
EdgeTable et ((float) (left + currentState->xOffset), (float) (y + currentState->yOffset),
|
|
(float) (right - left), 1.0f);
|
|
currentState->fillEdgeTable (image, et);
|
|
}
|
|
|
|
//==============================================================================
|
|
class GlyphCache : private DeletedAtShutdown
|
|
{
|
|
public:
|
|
GlyphCache() throw()
|
|
: accessCounter (0), hits (0), misses (0)
|
|
{
|
|
for (int i = 120; --i >= 0;)
|
|
glyphs.add (new CachedGlyph());
|
|
}
|
|
|
|
~GlyphCache() throw()
|
|
{
|
|
clearSingletonInstance();
|
|
}
|
|
|
|
juce_DeclareSingleton_SingleThreaded_Minimal (GlyphCache);
|
|
|
|
//==============================================================================
|
|
void drawGlyph (LLGCSavedState& state, Image& image, const Font& font, const int glyphNumber, float x, float y) throw()
|
|
{
|
|
++accessCounter;
|
|
int oldestCounter = INT_MAX;
|
|
CachedGlyph* oldest = 0;
|
|
|
|
for (int i = glyphs.size(); --i >= 0;)
|
|
{
|
|
CachedGlyph* const glyph = glyphs.getUnchecked (i);
|
|
|
|
if (glyph->glyph == glyphNumber && glyph->font == font)
|
|
{
|
|
++hits;
|
|
glyph->lastAccessCount = accessCounter;
|
|
glyph->draw (state, image, x, y);
|
|
return;
|
|
}
|
|
|
|
if (glyph->lastAccessCount <= oldestCounter)
|
|
{
|
|
oldestCounter = glyph->lastAccessCount;
|
|
oldest = glyph;
|
|
}
|
|
}
|
|
|
|
if (hits + ++misses > (glyphs.size() << 4))
|
|
{
|
|
if (misses * 2 > hits)
|
|
{
|
|
for (int i = 32; --i >= 0;)
|
|
glyphs.add (new CachedGlyph());
|
|
}
|
|
|
|
hits = misses = 0;
|
|
oldest = glyphs.getLast();
|
|
}
|
|
|
|
jassert (oldest != 0);
|
|
oldest->lastAccessCount = accessCounter;
|
|
oldest->generate (font, glyphNumber);
|
|
oldest->draw (state, image, x, y);
|
|
}
|
|
|
|
//==============================================================================
|
|
class CachedGlyph
|
|
{
|
|
public:
|
|
CachedGlyph() throw() : glyph (0), lastAccessCount (0), edgeTable (0) {}
|
|
~CachedGlyph() throw() { delete edgeTable; }
|
|
|
|
void draw (LLGCSavedState& state, Image& image, const float x, const float y) const throw()
|
|
{
|
|
if (edgeTable != 0)
|
|
{
|
|
EdgeTable et (*edgeTable);
|
|
et.translate (x, roundFloatToInt (y));
|
|
state.fillEdgeTable (image, et, false);
|
|
}
|
|
}
|
|
|
|
void generate (const Font& newFont, const int glyphNumber) throw()
|
|
{
|
|
font = newFont;
|
|
glyph = glyphNumber;
|
|
deleteAndZero (edgeTable);
|
|
|
|
Path glyphPath;
|
|
font.getTypeface()->getOutlineForGlyph (glyphNumber, glyphPath);
|
|
|
|
if (! glyphPath.isEmpty())
|
|
{
|
|
const float fontHeight = font.getHeight();
|
|
const AffineTransform transform (AffineTransform::scale (fontHeight * font.getHorizontalScale(), fontHeight));
|
|
|
|
float px, py, pw, ph;
|
|
glyphPath.getBoundsTransformed (transform, px, py, pw, ph);
|
|
|
|
Rectangle clip ((int) floorf (px), (int) floorf (py),
|
|
roundFloatToInt (pw) + 2, roundFloatToInt (ph) + 2);
|
|
|
|
edgeTable = new EdgeTable (clip, glyphPath, transform);
|
|
}
|
|
}
|
|
|
|
int glyph, lastAccessCount;
|
|
Font font;
|
|
|
|
//==============================================================================
|
|
juce_UseDebuggingNewOperator
|
|
|
|
private:
|
|
EdgeTable* edgeTable;
|
|
|
|
CachedGlyph (const CachedGlyph&);
|
|
const CachedGlyph& operator= (const CachedGlyph&);
|
|
};
|
|
|
|
//==============================================================================
|
|
juce_UseDebuggingNewOperator
|
|
|
|
private:
|
|
OwnedArray <CachedGlyph> glyphs;
|
|
int accessCounter, hits, misses;
|
|
|
|
GlyphCache (const GlyphCache&);
|
|
const GlyphCache& operator= (const GlyphCache&);
|
|
};
|
|
|
|
juce_ImplementSingleton_SingleThreaded (GlyphCache);
|
|
|
|
|
|
void LowLevelGraphicsSoftwareRenderer::setFont (const Font& newFont)
|
|
{
|
|
currentState->font = newFont;
|
|
}
|
|
|
|
const Font LowLevelGraphicsSoftwareRenderer::getFont()
|
|
{
|
|
return currentState->font;
|
|
}
|
|
|
|
void LowLevelGraphicsSoftwareRenderer::drawGlyph (int glyphNumber, const AffineTransform& transform)
|
|
{
|
|
Font& f = currentState->font;
|
|
|
|
if (transform.isOnlyTranslation())
|
|
{
|
|
GlyphCache::getInstance()->drawGlyph (*currentState, image, f, glyphNumber,
|
|
transform.getTranslationX() + (float) currentState->xOffset,
|
|
roundFloatToInt (transform.getTranslationY() + (float) currentState->yOffset));
|
|
}
|
|
else
|
|
{
|
|
Path p;
|
|
f.getTypeface()->getOutlineForGlyph (glyphNumber, p);
|
|
fillPath (p, AffineTransform::scale (f.getHeight() * f.getHorizontalScale(), f.getHeight()).followedBy (transform));
|
|
}
|
|
}
|
|
|
|
#if JUCE_MSVC
|
|
#pragma warning (pop)
|
|
#endif
|
|
|
|
END_JUCE_NAMESPACE
|