void SkPictureRecord::drawPosTextH(const void* text, size_t byteLength,
const SkScalar xpos[], SkScalar constY,
const SkPaint& paint) {
size_t points = paint.countText(text, byteLength);
if (0 == points)
return;
bool fast = paint.canComputeFastBounds();
addDraw(fast ? DRAW_POS_TEXT_H_TOP_BOTTOM : DRAW_POS_TEXT_H);
addPaint(paint);
addText(text, byteLength);
addInt(points);
#ifdef SK_DEBUG_SIZE
size_t start = fWriter.size();
#endif
if (fast) {
addFontMetricsTopBottom(paint, constY);
}
addScalar(constY);
fWriter.writeMul4(xpos, points * sizeof(SkScalar));
#ifdef SK_DEBUG_SIZE
fPointBytes += fWriter.size() - start;
fPointWrites += points;
#endif
validate();
}
void SkRecorder::drawPosTextH(const void* text, size_t byteLength,
const SkScalar xpos[], SkScalar constY, const SkPaint& paint) {
const unsigned points = paint.countText(text, byteLength);
APPEND(DrawPosTextH,
this->copy((const char*)text, byteLength), byteLength,
this->copy(xpos, points), constY, delay_copy(paint));
}
void SkPipeCanvas::onDrawTextRSXform(const void* text, size_t byteLength, const SkRSXform xform[],
const SkRect* cull, const SkPaint& paint) {
SkASSERT(byteLength);
bool compact = fits_in(byteLength, 23);
unsigned extra = compact ? (byteLength << 1) : 0;
if (cull) {
extra |= 1;
}
SkPipeWriter writer(this);
writer.write32(pack_verb(SkPipeVerb::kDrawTextRSXform, extra));
if (!compact) {
writer.write32(SkToU32(byteLength));
}
write_pad(&writer, text, byteLength);
int count = paint.countText(text, byteLength);
writer.write32(count); // maybe we can/should store this in extra as well?
writer.write(xform, count * sizeof(SkRSXform));
if (cull) {
writer.writeRect(*cull);
}
write_paint(writer, paint, kText_PaintUsage);
}
void operator()(const char text[], size_t length, SkScalar x, SkScalar y,
const SkPaint& paint) override {
SkPaint p(paint);
p.setTextEncoding(SkPaint::kGlyphID_TextEncoding);
const int count = paint.countText(text, length);
paint.textToGlyphs(text, length, fBuilder.allocRun(p, count, x, y).glyphs);
}
void SkRecorder::onDrawTextRSXform(const void* text, size_t byteLength, const SkRSXform xform[],
const SkRect* cull, const SkPaint& paint) {
APPEND(DrawTextRSXform,
paint,
this->copy((const char*)text, byteLength),
byteLength,
this->copy(xform, paint.countText(text, byteLength)),
this->copy(cull));
}
void SkRecorder::onDrawPosText(const void* text, size_t byteLength,
const SkPoint pos[], const SkPaint& paint) {
const int points = paint.countText(text, byteLength);
APPEND(DrawPosText,
paint,
this->copy((const char*)text, byteLength),
byteLength,
this->copy(pos, points));
}
void SkRecorder::onDrawPosTextH(const void* text, size_t byteLength,
const SkScalar xpos[], SkScalar constY, const SkPaint& paint) {
const int points = paint.countText(text, byteLength);
APPEND(DrawPosTextH,
paint,
this->copy((const char*)text, byteLength),
SkToUInt(byteLength),
constY,
this->copy(xpos, points));
}
void LoggingCanvas::onDrawPosText(const void* text, size_t byteLength, const SkPoint pos[], const SkPaint& paint)
{
AutoLogger logger(this);
RefPtr<JSONObject> params = logger.logItemWithParams("drawPosText");
params->setString("text", stringForText(text, byteLength, paint));
size_t pointsCount = paint.countText(text, byteLength);
params->setArray("pos", arrayForSkPoints(pointsCount, pos));
params->setObject("paint", objectForSkPaint(paint));
this->SkCanvas::onDrawPosText(text, byteLength, pos, paint);
}
void SkPictureRecord::drawPosText(const void* text, size_t byteLength,
const SkPoint pos[], const SkPaint& paint) {
size_t points = paint.countText(text, byteLength);
if (0 == points)
return;
bool canUseDrawH = true;
// check if the caller really should have used drawPosTextH()
{
const SkScalar firstY = pos[0].fY;
for (size_t index = 1; index < points; index++) {
if (pos[index].fY != firstY) {
canUseDrawH = false;
break;
}
}
}
bool fast = canUseDrawH && paint.canComputeFastBounds();
if (fast) {
addDraw(DRAW_POS_TEXT_H_TOP_BOTTOM);
} else {
addDraw(canUseDrawH ? DRAW_POS_TEXT_H : DRAW_POS_TEXT);
}
addPaint(paint);
addText(text, byteLength);
addInt(points);
#ifdef SK_DEBUG_SIZE
size_t start = fWriter.size();
#endif
if (canUseDrawH) {
if (fast) {
addFontMetricsTopBottom(paint, pos[0].fY);
}
addScalar(pos[0].fY);
SkScalar* xptr = (SkScalar*)fWriter.reserve(points * sizeof(SkScalar));
for (size_t index = 0; index < points; index++)
*xptr++ = pos[index].fX;
}
else {
fWriter.writeMul4(pos, points * sizeof(SkPoint));
}
#ifdef SK_DEBUG_SIZE
fPointBytes += fWriter.size() - start;
fPointWrites += points;
#endif
validate();
}
void SkPipeCanvas::onDrawPosText(const void* text, size_t byteLength, const SkPoint pos[],
const SkPaint& paint) {
SkASSERT(byteLength);
bool compact = fits_in(byteLength, 24);
SkPipeWriter writer(this);
writer.write32(pack_verb(SkPipeVerb::kDrawPosText, compact ? (unsigned)byteLength : 0));
if (!compact) {
writer.write32(SkToU32(byteLength));
}
write_pad(&writer, text, byteLength);
writer.writePointArray(pos, paint.countText(text, byteLength));
write_paint(writer, paint, kText_PaintUsage);
}
static void exercise_draw_pos_text_h(SkCanvas* canvas,
const char* text,
SkScalar x, SkScalar y,
const SkPaint& paint) {
size_t textLen = strlen(text);
int count = paint.countText(text, textLen);
SkAutoTArray<SkScalar> widths(count);
paint.getTextWidths(text, textLen, &widths[0]);
SkAutoTArray<SkScalar> pos(count);
for (int i = 0; i < count; ++i) {
pos[i] = x;
x += widths[i];
}
canvas->drawPosTextH(text, textLen, &pos[0], y, paint);
}
void SkPictureRecord::onDrawPosText(const void* text, size_t byteLength, const SkPoint pos[],
const SkPaint& paint) {
int points = paint.countText(text, byteLength);
// op + paint index + length + 'length' worth of data + num points + x&y point data
size_t size = 3 * kUInt32Size + SkAlign4(byteLength) + kUInt32Size + points * sizeof(SkPoint);
DrawType op = DRAW_POS_TEXT;
size_t initialOffset = this->addDraw(op, &size);
this->addPaint(paint);
this->addText(text, byteLength);
this->addInt(points);
fWriter.writeMul4(pos, points * sizeof(SkPoint));
this->validate(initialOffset, size);
}
void SkPictureRecord::onDrawPosTextH(const void* text, size_t byteLength, const SkScalar xpos[],
SkScalar constY, const SkPaint& paint) {
int points = paint.countText(text, byteLength);
// op + paint index + length + 'length' worth of data + num points
size_t size = 3 * kUInt32Size + SkAlign4(byteLength) + 1 * kUInt32Size;
// + y + the actual points
size += 1 * kUInt32Size + points * sizeof(SkScalar);
size_t initialOffset = this->addDraw(DRAW_POS_TEXT_H, &size);
this->addPaint(paint);
this->addText(text, byteLength);
this->addInt(points);
this->addScalar(constY);
fWriter.writeMul4(xpos, points * sizeof(SkScalar));
this->validate(initialOffset, size);
}
void SkBBoxRecord::drawPosText(const void* text, size_t byteLength,
const SkPoint pos[], const SkPaint& paint) {
SkRect bbox;
bbox.set(pos, paint.countText(text, byteLength));
SkPaint::FontMetrics metrics;
paint.getFontMetrics(&metrics);
bbox.fTop += metrics.fTop;
bbox.fBottom += metrics.fBottom;
// pad on left and right by half of max vertical glyph extents
SkScalar pad = (metrics.fTop - metrics.fBottom) / 2;
bbox.fLeft += pad;
bbox.fRight -= pad;
if (this->transformBounds(bbox, &paint)) {
INHERITED::drawPosText(text, byteLength, pos, paint);
}
}
SkDrawPosTextCommand::SkDrawPosTextCommand(const void* text, size_t byteLength,
const SkPoint pos[], const SkPaint& paint)
: INHERITED(DRAW_POS_TEXT) {
size_t numPts = paint.countText(text, byteLength);
fText = new char[byteLength];
memcpy(fText, text, byteLength);
fByteLength = byteLength;
fPos = new SkPoint[numPts];
memcpy(fPos, pos, numPts * sizeof(SkPoint));
fPaint = paint;
fInfo.push(SkObjectParser::TextToString(text, byteLength, paint.getTextEncoding()));
// TODO(chudy): Test that this works.
fInfo.push(SkObjectParser::PointsToString(pos, 1));
fInfo.push(SkObjectParser::PaintToString(paint));
}
void SkBBoxRecord::onDrawPosTextH(const void* text, size_t byteLength, const SkScalar xpos[],
SkScalar constY, const SkPaint& paint) {
size_t numChars = paint.countText(text, byteLength);
if (numChars == 0) {
return;
}
const SkFlatData* flatPaintData = this->getFlatPaintData(paint);
WriteTopBot(paint, *flatPaintData);
SkScalar top = flatPaintData->topBot()[0];
SkScalar bottom = flatPaintData->topBot()[1];
SkScalar pad = top - bottom;
SkRect bbox;
bbox.fLeft = SK_ScalarMax;
bbox.fRight = SK_ScalarMin;
for (size_t i = 0; i < numChars; ++i) {
if (xpos[i] < bbox.fLeft) {
bbox.fLeft = xpos[i];
}
if (xpos[i] > bbox.fRight) {
bbox.fRight = xpos[i];
}
}
// pad horizontally by max glyph height
pad = hack_373785_amend_pad(pad);
bbox.fLeft += pad;
bbox.fRight -= pad;
bbox.fTop = top + constY;
bbox.fBottom = bottom + constY;
if (!this->transformBounds(bbox, &paint)) {
return;
}
// This is the equivalent of calling:
// INHERITED::drawPosTextH(text, byteLength, xpos, constY, paint);
// but we filled our flat paint beforehand so that we could get font metrics.
drawPosTextHImpl(text, byteLength, xpos, constY, paint, flatPaintData);
}
SkDrawPosTextHCommand::SkDrawPosTextHCommand(const void* text, size_t byteLength,
const SkScalar xpos[], SkScalar constY,
const SkPaint& paint)
: INHERITED(DRAW_POS_TEXT_H) {
size_t numPts = paint.countText(text, byteLength);
fText = new char[byteLength];
memcpy(fText, text, byteLength);
fByteLength = byteLength;
fXpos = new SkScalar[numPts];
memcpy(fXpos, xpos, numPts * sizeof(SkScalar));
fConstY = constY;
fPaint = paint;
fInfo.push(SkObjectParser::TextToString(text, byteLength, paint.getTextEncoding()));
fInfo.push(SkObjectParser::ScalarToString(xpos[0], "XPOS: "));
fInfo.push(SkObjectParser::ScalarToString(constY, "SkScalar constY: "));
fInfo.push(SkObjectParser::PaintToString(paint));
}
void SkPictureRecord::onDrawTextRSXform(const void* text, size_t byteLength,
const SkRSXform xform[], const SkRect* cull,
const SkPaint& paint) {
const int count = paint.countText(text, byteLength);
// [op + paint-index + count + flags + length] + [text] + [xform] + cull
size_t size = 5 * kUInt32Size + SkAlign4(byteLength) + count * sizeof(SkRSXform);
uint32_t flags = 0;
if (cull) {
flags |= DRAW_TEXT_RSXFORM_HAS_CULL;
size += sizeof(SkRect);
}
size_t initialOffset = this->addDraw(DRAW_TEXT_RSXFORM, &size);
this->addPaint(paint);
this->addInt(count);
this->addInt(flags);
this->addText(text, byteLength);
fWriter.write(xform, count * sizeof(SkRSXform));
if (cull) {
fWriter.write(cull, sizeof(SkRect));
}
this->validate(initialOffset, size);
}
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "gm.h"
// https://bugs.skia.org/5321
// two strings should draw the same. PDF did not.
DEF_SIMPLE_GM(skbug_5321, canvas, 128, 128) {
SkPaint paint;
paint.setStyle(SkPaint::kFill_Style);
paint.setTextSize(30);
paint.setTextEncoding(SkPaint::kUTF8_TextEncoding);
const char text[] = "x\314\200y"; // utf8(u"x\u0300y")
SkScalar x = 20, y = 45;
size_t byteLength = strlen(text);
canvas->drawText(text, byteLength, x, y, paint);
int glyph_count = paint.countText(text, byteLength);
SkAutoTMalloc<SkScalar> widths(glyph_count);
(void)paint.getTextWidths(text, byteLength, &widths[0]);
for (int i = 0; i < glyph_count; ++i) {
SkScalar w = widths[i];
widths[i] = x;
x += w;
}
y += paint.getFontMetrics(nullptr);
canvas->drawPosTextH(text, byteLength, &widths[0], y, paint);
}
