+++ /dev/null
-/*
- *
- * (C) Copyright IBM Corp. 1998-2005 - All Rights Reserved
- *
- */
-
-#include "LETypes.h"
-#include "LEFontInstance.h"
-#include "OpenTypeTables.h"
-#include "ValueRecords.h"
-#include "DeviceTables.h"
-#include "GlyphIterator.h"
-#include "LESwaps.h"
-
-U_NAMESPACE_BEGIN
-
-#define Nibble(value, nibble) ((value >> (nibble * 4)) & 0xF)
-#define NibbleBits(value, nibble) (bitsInNibble[Nibble(value, nibble)])
-
-le_int16 ValueRecord::getFieldValue(ValueFormat valueFormat, ValueRecordField field) const
-{
- le_int16 valueIndex = getFieldIndex(valueFormat, field);
- le_int16 value = values[valueIndex];
-
- return SWAPW(value);
-}
-
-le_int16 ValueRecord::getFieldValue(le_int16 index, ValueFormat valueFormat, ValueRecordField field) const
-{
- le_int16 baseIndex = getFieldCount(valueFormat) * index;
- le_int16 valueIndex = getFieldIndex(valueFormat, field);
- le_int16 value = values[baseIndex + valueIndex];
-
- return SWAPW(value);
-}
-
-void ValueRecord::adjustPosition(ValueFormat valueFormat, const char *base, GlyphIterator &glyphIterator,
- const LEFontInstance *fontInstance) const
-{
- float xPlacementAdjustment = 0;
- float yPlacementAdjustment = 0;
- float xAdvanceAdjustment = 0;
- float yAdvanceAdjustment = 0;
-
- if ((valueFormat & vfbXPlacement) != 0) {
- le_int16 value = getFieldValue(valueFormat, vrfXPlacement);
- LEPoint pixels;
-
- fontInstance->transformFunits(value, 0, pixels);
-
- xPlacementAdjustment += fontInstance->xPixelsToUnits(pixels.fX);
- yPlacementAdjustment += fontInstance->yPixelsToUnits(pixels.fY);
- }
-
- if ((valueFormat & vfbYPlacement) != 0) {
- le_int16 value = getFieldValue(valueFormat, vrfYPlacement);
- LEPoint pixels;
-
- fontInstance->transformFunits(0, value, pixels);
-
- xPlacementAdjustment += fontInstance->xPixelsToUnits(pixels.fX);
- yPlacementAdjustment += fontInstance->yPixelsToUnits(pixels.fY);
- }
-
- if ((valueFormat & vfbXAdvance) != 0) {
- le_int16 value = getFieldValue(valueFormat, vrfXAdvance);
- LEPoint pixels;
-
- fontInstance->transformFunits(value, 0, pixels);
-
- xAdvanceAdjustment += fontInstance->xPixelsToUnits(pixels.fX);
- yAdvanceAdjustment += fontInstance->yPixelsToUnits(pixels.fY);
- }
-
- if ((valueFormat & vfbYAdvance) != 0) {
- le_int16 value = getFieldValue(valueFormat, vrfYAdvance);
- LEPoint pixels;
-
- fontInstance->transformFunits(0, value, pixels);
-
- xAdvanceAdjustment += fontInstance->xPixelsToUnits(pixels.fX);
- yAdvanceAdjustment += fontInstance->yPixelsToUnits(pixels.fY);
- }
-
- // FIXME: The device adjustments should really be transformed, but
- // the only way I know how to do that is to convert them to le_int16 units,
- // transform them, and then convert them back to pixels. Sigh...
- if ((valueFormat & vfbAnyDevice) != 0) {
- le_int16 xppem = (le_int16) fontInstance->getXPixelsPerEm();
- le_int16 yppem = (le_int16) fontInstance->getYPixelsPerEm();
-
- if ((valueFormat & vfbXPlaDevice) != 0) {
- Offset dtOffset = getFieldValue(valueFormat, vrfXPlaDevice);
-
- if (dtOffset != 0) {
- const DeviceTable *dt = (const DeviceTable *) (base + dtOffset);
- le_int16 xAdj = dt->getAdjustment(xppem);
-
- xPlacementAdjustment += fontInstance->xPixelsToUnits(xAdj);
- }
- }
-
- if ((valueFormat & vfbYPlaDevice) != 0) {
- Offset dtOffset = getFieldValue(valueFormat, vrfYPlaDevice);
-
- if (dtOffset != 0) {
- const DeviceTable *dt = (const DeviceTable *) (base + dtOffset);
- le_int16 yAdj = dt->getAdjustment(yppem);
-
- yPlacementAdjustment += fontInstance->yPixelsToUnits(yAdj);
- }
- }
-
- if ((valueFormat & vfbXAdvDevice) != 0) {
- Offset dtOffset = getFieldValue(valueFormat, vrfXAdvDevice);
-
- if (dtOffset != 0) {
- const DeviceTable *dt = (const DeviceTable *) (base + dtOffset);
- le_int16 xAdj = dt->getAdjustment(xppem);
-
- xAdvanceAdjustment += fontInstance->xPixelsToUnits(xAdj);
- }
- }
-
- if ((valueFormat & vfbYAdvDevice) != 0) {
- Offset dtOffset = getFieldValue(valueFormat, vrfYAdvDevice);
-
- if (dtOffset != 0) {
- const DeviceTable *dt = (const DeviceTable *) (base + dtOffset);
- le_int16 yAdj = dt->getAdjustment(yppem);
-
- yAdvanceAdjustment += fontInstance->yPixelsToUnits(yAdj);
- }
- }
- }
-
- glyphIterator.adjustCurrGlyphPositionAdjustment(
- xPlacementAdjustment, yPlacementAdjustment, xAdvanceAdjustment, yAdvanceAdjustment);
-}
-
-void ValueRecord::adjustPosition(le_int16 index, ValueFormat valueFormat, const char *base, GlyphIterator &glyphIterator,
- const LEFontInstance *fontInstance) const
-{
- float xPlacementAdjustment = 0;
- float yPlacementAdjustment = 0;
- float xAdvanceAdjustment = 0;
- float yAdvanceAdjustment = 0;
-
- if ((valueFormat & vfbXPlacement) != 0) {
- le_int16 value = getFieldValue(index, valueFormat, vrfXPlacement);
- LEPoint pixels;
-
- fontInstance->transformFunits(value, 0, pixels);
-
- xPlacementAdjustment += fontInstance->xPixelsToUnits(pixels.fX);
- yPlacementAdjustment += fontInstance->yPixelsToUnits(pixels.fY);
- }
-
- if ((valueFormat & vfbYPlacement) != 0) {
- le_int16 value = getFieldValue(index, valueFormat, vrfYPlacement);
- LEPoint pixels;
-
- fontInstance->transformFunits(0, value, pixels);
-
- xPlacementAdjustment += fontInstance->xPixelsToUnits(pixels.fX);
- yPlacementAdjustment += fontInstance->yPixelsToUnits(pixels.fY);
- }
-
- if ((valueFormat & vfbXAdvance) != 0) {
- le_int16 value = getFieldValue(index, valueFormat, vrfXAdvance);
- LEPoint pixels;
-
- fontInstance->transformFunits(value, 0, pixels);
-
- xAdvanceAdjustment += fontInstance->xPixelsToUnits(pixels.fX);
- yAdvanceAdjustment += fontInstance->yPixelsToUnits(pixels.fY);
- }
-
- if ((valueFormat & vfbYAdvance) != 0) {
- le_int16 value = getFieldValue(index, valueFormat, vrfYAdvance);
- LEPoint pixels;
-
- fontInstance->transformFunits(0, value, pixels);
-
- xAdvanceAdjustment += fontInstance->xPixelsToUnits(pixels.fX);
- yAdvanceAdjustment += fontInstance->yPixelsToUnits(pixels.fY);
- }
-
- // FIXME: The device adjustments should really be transformed, but
- // the only way I know how to do that is to convert them to le_int16 units,
- // transform them, and then convert them back to pixels. Sigh...
- if ((valueFormat & vfbAnyDevice) != 0) {
- le_int16 xppem = (le_int16) fontInstance->getXPixelsPerEm();
- le_int16 yppem = (le_int16) fontInstance->getYPixelsPerEm();
-
- if ((valueFormat & vfbXPlaDevice) != 0) {
- Offset dtOffset = getFieldValue(index, valueFormat, vrfXPlaDevice);
-
- if (dtOffset != 0) {
- const DeviceTable *dt = (const DeviceTable *) (base + dtOffset);
- le_int16 xAdj = dt->getAdjustment(xppem);
-
- xPlacementAdjustment += fontInstance->xPixelsToUnits(xAdj);
- }
- }
-
- if ((valueFormat & vfbYPlaDevice) != 0) {
- Offset dtOffset = getFieldValue(index, valueFormat, vrfYPlaDevice);
-
- if (dtOffset != 0) {
- const DeviceTable *dt = (const DeviceTable *) (base + dtOffset);
- le_int16 yAdj = dt->getAdjustment(yppem);
-
- yPlacementAdjustment += fontInstance->yPixelsToUnits(yAdj);
- }
- }
-
- if ((valueFormat & vfbXAdvDevice) != 0) {
- Offset dtOffset = getFieldValue(index, valueFormat, vrfXAdvDevice);
-
- if (dtOffset != 0) {
- const DeviceTable *dt = (const DeviceTable *) (base + dtOffset);
- le_int16 xAdj = dt->getAdjustment(xppem);
-
- xAdvanceAdjustment += fontInstance->xPixelsToUnits(xAdj);
- }
- }
-
- if ((valueFormat & vfbYAdvDevice) != 0) {
- Offset dtOffset = getFieldValue(index, valueFormat, vrfYAdvDevice);
-
- if (dtOffset != 0) {
- const DeviceTable *dt = (const DeviceTable *) (base + dtOffset);
- le_int16 yAdj = dt->getAdjustment(yppem);
-
- yAdvanceAdjustment += fontInstance->yPixelsToUnits(yAdj);
- }
- }
- }
-
- glyphIterator.adjustCurrGlyphPositionAdjustment(
- xPlacementAdjustment, yPlacementAdjustment, xAdvanceAdjustment, yAdvanceAdjustment);
-}
-
-le_int16 ValueRecord::getSize(ValueFormat valueFormat)
-{
- return getFieldCount(valueFormat) * sizeof(le_int16);
-}
-
-le_int16 ValueRecord::getFieldCount(ValueFormat valueFormat)
-{
- static const le_int16 bitsInNibble[] =
- {
- 0 + 0 + 0 + 0,
- 0 + 0 + 0 + 1,
- 0 + 0 + 1 + 0,
- 0 + 0 + 1 + 1,
- 0 + 1 + 0 + 0,
- 0 + 1 + 0 + 1,
- 0 + 1 + 1 + 0,
- 0 + 1 + 1 + 1,
- 1 + 0 + 0 + 0,
- 1 + 0 + 0 + 1,
- 1 + 0 + 1 + 0,
- 1 + 0 + 1 + 1,
- 1 + 1 + 0 + 0,
- 1 + 1 + 0 + 1,
- 1 + 1 + 1 + 0,
- 1 + 1 + 1 + 1
- };
-
- valueFormat &= ~vfbReserved;
-
- return NibbleBits(valueFormat, 0) + NibbleBits(valueFormat, 1) +
- NibbleBits(valueFormat, 2) + NibbleBits(valueFormat, 3);
-}
-
-le_int16 ValueRecord::getFieldIndex(ValueFormat valueFormat, ValueRecordField field)
-{
- static const le_uint16 beforeMasks[] =
- {
- 0x0000,
- 0x0001,
- 0x0003,
- 0x0007,
- 0x000F,
- 0x001F,
- 0x003F,
- 0x007F,
- 0x00FF,
- 0x01FF,
- 0x03FF,
- 0x07FF,
- 0x0FFF,
- 0x1FFF,
- 0x3FFF,
- 0x7FFF,
- 0xFFFF
- };
-
- return getFieldCount(valueFormat & beforeMasks[field]);
-}
-
-U_NAMESPACE_END
projects / apple / icu.git / blobdiff