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-rw-r--r--splash/SplashState.cc349
1 files changed, 349 insertions, 0 deletions
diff --git a/splash/SplashState.cc b/splash/SplashState.cc
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--- /dev/null
+++ b/splash/SplashState.cc
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+//========================================================================
+//
+// SplashState.cc
+//
+// Copyright 2003-2013 Glyph & Cog, LLC
+//
+//========================================================================
+
+#include <aconf.h>
+
+#ifdef USE_GCC_PRAGMAS
+#pragma implementation
+#endif
+
+#include <string.h>
+#include "gmem.h"
+#include "gmempp.h"
+#include "SplashPattern.h"
+#include "SplashScreen.h"
+#include "SplashClip.h"
+#include "SplashBitmap.h"
+#include "SplashState.h"
+
+//------------------------------------------------------------------------
+// SplashState
+//------------------------------------------------------------------------
+
+// number of components in each color mode
+int splashColorModeNComps[] = {
+ 1, 1, 3, 3
+#if SPLASH_CMYK
+ , 4
+#endif
+};
+
+SplashState::SplashState(int width, int height, GBool vectorAntialias,
+ SplashScreenParams *screenParams) {
+ SplashColor color;
+ int i;
+
+ matrix[0] = 1; matrix[1] = 0;
+ matrix[2] = 0; matrix[3] = 1;
+ matrix[4] = 0; matrix[5] = 0;
+ memset(&color, 0, sizeof(SplashColor));
+ strokePattern = new SplashSolidColor(color);
+ fillPattern = new SplashSolidColor(color);
+ screen = new SplashScreen(screenParams);
+ blendFunc = NULL;
+ strokeAlpha = 1;
+ fillAlpha = 1;
+ lineWidth = 1;
+ lineCap = splashLineCapButt;
+ lineJoin = splashLineJoinMiter;
+ miterLimit = 10;
+ flatness = 1;
+ lineDash = NULL;
+ lineDashLength = 0;
+ lineDashPhase = 0;
+ strokeAdjust = splashStrokeAdjustOff;
+ clip = new SplashClip(0, 0, width, height);
+ clipIsShared = gFalse;
+ softMask = NULL;
+ deleteSoftMask = gFalse;
+ inNonIsolatedGroup = gFalse;
+ inKnockoutGroup = gFalse;
+#if SPLASH_CMYK
+ rgbTransferR = (Guchar *)gmalloc(8 * 256);
+ rgbTransferG = rgbTransferR + 256;
+ rgbTransferB = rgbTransferG + 256;
+ grayTransfer = rgbTransferB + 256;
+ cmykTransferC = grayTransfer + 256;
+ cmykTransferM = cmykTransferC + 256;
+ cmykTransferY = cmykTransferM + 256;
+ cmykTransferK = cmykTransferY + 256;
+#else
+ rgbTransferR = (Guchar *)gmalloc(4 * 256);
+ rgbTransferG = rgbTransferR + 256;
+ rgbTransferB = rgbTransferG + 256;
+ grayTransfer = rgbTransferB + 256;
+#endif
+ for (i = 0; i < 256; ++i) {
+ rgbTransferR[i] = (Guchar)i;
+ rgbTransferG[i] = (Guchar)i;
+ rgbTransferB[i] = (Guchar)i;
+ grayTransfer[i] = (Guchar)i;
+#if SPLASH_CMYK
+ cmykTransferC[i] = (Guchar)i;
+ cmykTransferM[i] = (Guchar)i;
+ cmykTransferY[i] = (Guchar)i;
+ cmykTransferK[i] = (Guchar)i;
+#endif
+ }
+ transferIsShared = gFalse;
+ overprintMask = 0xffffffff;
+ enablePathSimplification = gFalse;
+ next = NULL;
+}
+
+SplashState::SplashState(int width, int height, GBool vectorAntialias,
+ SplashScreen *screenA) {
+ SplashColor color;
+ int i;
+
+ matrix[0] = 1; matrix[1] = 0;
+ matrix[2] = 0; matrix[3] = 1;
+ matrix[4] = 0; matrix[5] = 0;
+ memset(&color, 0, sizeof(SplashColor));
+ strokePattern = new SplashSolidColor(color);
+ fillPattern = new SplashSolidColor(color);
+ screen = screenA->copy();
+ blendFunc = NULL;
+ strokeAlpha = 1;
+ fillAlpha = 1;
+ lineWidth = 1;
+ lineCap = splashLineCapButt;
+ lineJoin = splashLineJoinMiter;
+ miterLimit = 10;
+ flatness = 1;
+ lineDash = NULL;
+ lineDashLength = 0;
+ lineDashPhase = 0;
+ strokeAdjust = splashStrokeAdjustOff;
+ clip = new SplashClip(0, 0, width, height);
+ clipIsShared = gFalse;
+ softMask = NULL;
+ deleteSoftMask = gFalse;
+ inNonIsolatedGroup = gFalse;
+ inKnockoutGroup = gFalse;
+#if SPLASH_CMYK
+ rgbTransferR = (Guchar *)gmalloc(8 * 256);
+ rgbTransferG = rgbTransferR + 256;
+ rgbTransferB = rgbTransferG + 256;
+ grayTransfer = rgbTransferB + 256;
+ cmykTransferC = grayTransfer + 256;
+ cmykTransferM = cmykTransferC + 256;
+ cmykTransferY = cmykTransferM + 256;
+ cmykTransferK = cmykTransferY + 256;
+#else
+ rgbTransferR = (Guchar *)gmalloc(4 * 256);
+ rgbTransferG = rgbTransferR + 256;
+ rgbTransferB = rgbTransferG + 256;
+ grayTransfer = rgbTransferB + 256;
+#endif
+ for (i = 0; i < 256; ++i) {
+ rgbTransferR[i] = (Guchar)i;
+ rgbTransferG[i] = (Guchar)i;
+ rgbTransferB[i] = (Guchar)i;
+ grayTransfer[i] = (Guchar)i;
+#if SPLASH_CMYK
+ cmykTransferC[i] = (Guchar)i;
+ cmykTransferM[i] = (Guchar)i;
+ cmykTransferY[i] = (Guchar)i;
+ cmykTransferK[i] = (Guchar)i;
+#endif
+ }
+ transferIsShared = gFalse;
+ overprintMask = 0xffffffff;
+ enablePathSimplification = gFalse;
+ next = NULL;
+}
+
+SplashState::SplashState(SplashState *state) {
+ memcpy(matrix, state->matrix, 6 * sizeof(SplashCoord));
+ strokePattern = state->strokePattern->copy();
+ fillPattern = state->fillPattern->copy();
+ screen = state->screen->copy();
+ blendFunc = state->blendFunc;
+ strokeAlpha = state->strokeAlpha;
+ fillAlpha = state->fillAlpha;
+ lineWidth = state->lineWidth;
+ lineCap = state->lineCap;
+ lineJoin = state->lineJoin;
+ miterLimit = state->miterLimit;
+ flatness = state->flatness;
+ if (state->lineDash) {
+ lineDashLength = state->lineDashLength;
+ lineDash = (SplashCoord *)gmallocn(lineDashLength, sizeof(SplashCoord));
+ memcpy(lineDash, state->lineDash, lineDashLength * sizeof(SplashCoord));
+ } else {
+ lineDash = NULL;
+ lineDashLength = 0;
+ }
+ lineDashPhase = state->lineDashPhase;
+ strokeAdjust = state->strokeAdjust;
+ clip = state->clip;
+ clipIsShared = gTrue;
+ softMask = state->softMask;
+ deleteSoftMask = gFalse;
+ inNonIsolatedGroup = state->inNonIsolatedGroup;
+ inKnockoutGroup = state->inKnockoutGroup;
+ rgbTransferR = state->rgbTransferR;
+ rgbTransferG = state->rgbTransferG;
+ rgbTransferB = state->rgbTransferB;
+ grayTransfer = state->grayTransfer;
+#if SPLASH_CMYK
+ cmykTransferC = state->cmykTransferC;
+ cmykTransferM = state->cmykTransferM;
+ cmykTransferY = state->cmykTransferY;
+ cmykTransferK = state->cmykTransferK;
+#endif
+ transferIsShared = gTrue;
+ overprintMask = state->overprintMask;
+ enablePathSimplification = state->enablePathSimplification;
+ next = NULL;
+}
+
+SplashState::~SplashState() {
+ delete strokePattern;
+ delete fillPattern;
+ delete screen;
+ gfree(lineDash);
+ if (!clipIsShared) {
+ delete clip;
+ }
+ if (!transferIsShared) {
+ gfree(rgbTransferR);
+ }
+ if (deleteSoftMask && softMask) {
+ delete softMask;
+ }
+}
+
+void SplashState::setStrokePattern(SplashPattern *strokePatternA) {
+ delete strokePattern;
+ strokePattern = strokePatternA;
+}
+
+void SplashState::setFillPattern(SplashPattern *fillPatternA) {
+ delete fillPattern;
+ fillPattern = fillPatternA;
+}
+
+void SplashState::setScreen(SplashScreen *screenA) {
+ delete screen;
+ screen = screenA;
+}
+
+void SplashState::setLineDash(SplashCoord *lineDashA, int lineDashLengthA,
+ SplashCoord lineDashPhaseA) {
+ gfree(lineDash);
+ lineDashLength = lineDashLengthA;
+ if (lineDashLength > 0) {
+ lineDash = (SplashCoord *)gmallocn(lineDashLength, sizeof(SplashCoord));
+ memcpy(lineDash, lineDashA, lineDashLength * sizeof(SplashCoord));
+ } else {
+ lineDash = NULL;
+ }
+ lineDashPhase = lineDashPhaseA;
+}
+
+GBool SplashState::lineDashContainsZeroLengthDashes() {
+ int i;
+
+ if (lineDashLength == 0) {
+ return gFalse;
+ }
+
+ // if the line dash array has an odd number of elements, we need to
+ // check all of the elements; if the length is even, we only need to
+ // check even-number elements
+ if (lineDashLength & 1) {
+ for (i = 0; i < lineDashLength; ++i) {
+ if (lineDash[i] == 0) {
+ return gTrue;
+ }
+ }
+ } else {
+ for (i = 0; i < lineDashLength; i += 2) {
+ if (lineDash[i] == 0) {
+ return gTrue;
+ }
+ }
+ }
+ return gFalse;
+}
+
+void SplashState::clipResetToRect(SplashCoord x0, SplashCoord y0,
+ SplashCoord x1, SplashCoord y1) {
+ if (clipIsShared) {
+ clip = clip->copy();
+ clipIsShared = gFalse;
+ }
+ clip->resetToRect(x0, y0, x1, y1);
+}
+
+SplashError SplashState::clipToRect(SplashCoord x0, SplashCoord y0,
+ SplashCoord x1, SplashCoord y1) {
+ if (clipIsShared) {
+ clip = clip->copy();
+ clipIsShared = gFalse;
+ }
+ return clip->clipToRect(x0, y0, x1, y1);
+}
+
+SplashError SplashState::clipToPath(SplashPath *path, GBool eo) {
+ if (clipIsShared) {
+ clip = clip->copy();
+ clipIsShared = gFalse;
+ }
+ return clip->clipToPath(path, matrix, flatness, eo,
+ enablePathSimplification, strokeAdjust);
+}
+
+void SplashState::setSoftMask(SplashBitmap *softMaskA, GBool deleteBitmap) {
+ if (deleteSoftMask) {
+ delete softMask;
+ }
+ softMask = softMaskA;
+ deleteSoftMask = deleteBitmap;
+}
+
+void SplashState::setTransfer(Guchar *red, Guchar *green, Guchar *blue,
+ Guchar *gray) {
+#if SPLASH_CMYK
+ int i;
+#endif
+
+ if (transferIsShared) {
+#if SPLASH_CMYK
+ rgbTransferR = (Guchar *)gmalloc(8 * 256);
+ rgbTransferG = rgbTransferR + 256;
+ rgbTransferB = rgbTransferG + 256;
+ grayTransfer = rgbTransferB + 256;
+ cmykTransferC = grayTransfer + 256;
+ cmykTransferM = cmykTransferC + 256;
+ cmykTransferY = cmykTransferM + 256;
+ cmykTransferK = cmykTransferY + 256;
+#else
+ rgbTransferR = (Guchar *)gmalloc(4 * 256);
+ rgbTransferG = rgbTransferR + 256;
+ rgbTransferB = rgbTransferG + 256;
+ grayTransfer = rgbTransferB + 256;
+#endif
+ transferIsShared = gFalse;
+ }
+ memcpy(rgbTransferR, red, 256);
+ memcpy(rgbTransferG, green, 256);
+ memcpy(rgbTransferB, blue, 256);
+ memcpy(grayTransfer, gray, 256);
+#if SPLASH_CMYK
+ for (i = 0; i < 256; ++i) {
+ cmykTransferC[i] = (Guchar)(255 - rgbTransferR[255 - i]);
+ cmykTransferM[i] = (Guchar)(255 - rgbTransferG[255 - i]);
+ cmykTransferY[i] = (Guchar)(255 - rgbTransferB[255 - i]);
+ cmykTransferK[i] = (Guchar)(255 - grayTransfer[255 - i]);
+ }
+#endif
+}
+
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