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Unified Diff: src/core/SkDevice.cpp

Issue 23553006: Move SkBitmapDevice functions to their own file (Closed) Base URL: http://skia.googlecode.com/svn/trunk/
Patch Set: Add SkBitmapDevice.cpp to CL Created 7 years, 4 months ago
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Index: src/core/SkDevice.cpp
===================================================================
--- src/core/SkDevice.cpp (revision 11017)
+++ src/core/SkDevice.cpp (working copy)
@@ -5,32 +5,21 @@
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
-#include "SkBitmapDevice.h"
+
#include "SkDevice.h"
-#include "SkDeviceProperties.h"
-#include "SkDraw.h"
-#include "SkImageFilter.h"
#include "SkMetaData.h"
-#include "SkRasterClip.h"
-#include "SkRect.h"
-#include "SkRRect.h"
-#include "SkShader.h"
SK_DEFINE_INST_COUNT(SkBaseDevice)
-SK_DEFINE_INST_COUNT(SkBitmapDevice)
-///////////////////////////////////////////////////////////////////////////////
+#if SK_PMCOLOR_BYTE_ORDER(B,G,R,A)
+ const SkCanvas::Config8888 SkBaseDevice::kPMColorAlias = SkCanvas::kBGRA_Premul_Config8888;
+#elif SK_PMCOLOR_BYTE_ORDER(R,G,B,A)
+ const SkCanvas::Config8888 SkBaseDevice::kPMColorAlias = SkCanvas::kRGBA_Premul_Config8888;
+#else
+ const SkCanvas::Config8888 SkBaseDevice::kPMColorAlias = (SkCanvas::Config8888) -1;
+#endif
-#define CHECK_FOR_NODRAW_ANNOTATION(paint) \
- do { if (paint.isNoDrawAnnotation()) { return; } } while (0)
-
///////////////////////////////////////////////////////////////////////////////
-
-SkBitmapDevice::SkBitmapDevice(const SkBitmap& bitmap)
- : fBitmap(bitmap) {
- SkASSERT(SkBitmap::kARGB_4444_Config != bitmap.config());
-}
-
SkBaseDevice::SkBaseDevice()
: fLeakyProperties(SkDeviceProperties::MakeDefault())
#ifdef SK_DEBUG
@@ -41,11 +30,6 @@
fMetaData = NULL;
}
-SkBitmapDevice::SkBitmapDevice(const SkBitmap& bitmap, const SkDeviceProperties& deviceProperties)
- : SkBaseDevice(deviceProperties)
- , fBitmap(bitmap) {
-}
-
SkBaseDevice::SkBaseDevice(const SkDeviceProperties& deviceProperties)
: fLeakyProperties(deviceProperties)
#ifdef SK_DEBUG
@@ -56,41 +40,10 @@
fMetaData = NULL;
}
-SkBitmapDevice::SkBitmapDevice(SkBitmap::Config config, int width, int height, bool isOpaque) {
- fBitmap.setConfig(config, width, height);
- fBitmap.allocPixels();
- fBitmap.setIsOpaque(isOpaque);
- if (!isOpaque) {
- fBitmap.eraseColor(SK_ColorTRANSPARENT);
- }
-}
-
-SkBitmapDevice::SkBitmapDevice(SkBitmap::Config config, int width, int height, bool isOpaque,
- const SkDeviceProperties& deviceProperties)
- : SkBaseDevice(deviceProperties) {
-
- fBitmap.setConfig(config, width, height);
- fBitmap.allocPixels();
- fBitmap.setIsOpaque(isOpaque);
- if (!isOpaque) {
- fBitmap.eraseColor(SK_ColorTRANSPARENT);
- }
-}
-
SkBaseDevice::~SkBaseDevice() {
delete fMetaData;
}
-SkBitmapDevice::~SkBitmapDevice() {
-}
-
-void SkBitmapDevice::replaceBitmapBackendForRasterSurface(const SkBitmap& bm) {
- SkASSERT(bm.width() == fBitmap.width());
- SkASSERT(bm.height() == fBitmap.height());
- fBitmap = bm; // intent is to use bm's pixelRef (and rowbytes/config)
- fBitmap.lockPixels();
-}
-
SkBaseDevice* SkBaseDevice::createCompatibleDevice(SkBitmap::Config config,
int width, int height,
bool isOpaque) {
@@ -105,14 +58,6 @@
isOpaque, kSaveLayer_Usage);
}
-SkBaseDevice* SkBitmapDevice::onCreateCompatibleDevice(SkBitmap::Config config,
- int width, int height,
- bool isOpaque,
- Usage usage) {
- return SkNEW_ARGS(SkBitmapDevice,(config, width, height, isOpaque,
- this->getDeviceProperties()));
-}
-
SkMetaData& SkBaseDevice::getMetaData() {
// metadata users are rare, so we lazily allocate it. If that changes we
// can decide to just make it a field in the device (rather than a ptr)
@@ -122,18 +67,6 @@
return *fMetaData;
}
-void SkBitmapDevice::lockPixels() {
- if (fBitmap.lockPixelsAreWritable()) {
- fBitmap.lockPixels();
- }
-}
-
-void SkBitmapDevice::unlockPixels() {
- if (fBitmap.lockPixelsAreWritable()) {
- fBitmap.unlockPixels();
- }
-}
-
const SkBitmap& SkBaseDevice::accessBitmap(bool changePixels) {
const SkBitmap& bitmap = this->onAccessBitmap();
if (changePixels) {
@@ -142,38 +75,6 @@
return bitmap;
}
-void SkBitmapDevice::getGlobalBounds(SkIRect* bounds) const {
- if (bounds) {
- const SkIPoint& origin = this->getOrigin();
- bounds->setXYWH(origin.x(), origin.y(),
- fBitmap.width(), fBitmap.height());
- }
-}
-
-void SkBitmapDevice::clear(SkColor color) {
- fBitmap.eraseColor(color);
-}
-
-const SkBitmap& SkBitmapDevice::onAccessBitmap() {
- return fBitmap;
-}
-
-bool SkBitmapDevice::canHandleImageFilter(SkImageFilter*) {
- return false;
-}
-
-bool SkBitmapDevice::filterImage(SkImageFilter* filter, const SkBitmap& src,
- const SkMatrix& ctm, SkBitmap* result,
- SkIPoint* offset) {
- return false;
-}
-
-bool SkBitmapDevice::allowImageFilter(SkImageFilter*) {
- return true;
-}
-
-///////////////////////////////////////////////////////////////////////////////
-
bool SkBaseDevice::readPixels(SkBitmap* bitmap, int x, int y,
SkCanvas::Config8888 config8888) {
if (SkBitmap::kARGB_8888_Config != bitmap->config() ||
@@ -218,315 +119,3 @@
return result;
}
-#if SK_PMCOLOR_BYTE_ORDER(B,G,R,A)
- const SkCanvas::Config8888 SkBaseDevice::kPMColorAlias =
- SkCanvas::kBGRA_Premul_Config8888;
-#elif SK_PMCOLOR_BYTE_ORDER(R,G,B,A)
- const SkCanvas::Config8888 SkBaseDevice::kPMColorAlias =
- SkCanvas::kRGBA_Premul_Config8888;
-#else
- const SkCanvas::Config8888 SkBaseDevice::kPMColorAlias =
- (SkCanvas::Config8888) -1;
-#endif
-
-#include <SkConfig8888.h>
-
-bool SkBitmapDevice::onReadPixels(const SkBitmap& bitmap,
- int x, int y,
- SkCanvas::Config8888 config8888) {
- SkASSERT(SkBitmap::kARGB_8888_Config == bitmap.config());
- SkASSERT(!bitmap.isNull());
- SkASSERT(SkIRect::MakeWH(this->width(), this->height()).contains(SkIRect::MakeXYWH(x, y, bitmap.width(), bitmap.height())));
-
- SkIRect srcRect = SkIRect::MakeXYWH(x, y, bitmap.width(),
- bitmap.height());
- const SkBitmap& src = this->accessBitmap(false);
-
- SkBitmap subset;
- if (!src.extractSubset(&subset, srcRect)) {
- return false;
- }
- if (SkBitmap::kARGB_8888_Config != subset.config()) {
- // It'd be preferable to do this directly to bitmap.
- subset.copyTo(&subset, SkBitmap::kARGB_8888_Config);
- }
- SkAutoLockPixels alp(bitmap);
- uint32_t* bmpPixels = reinterpret_cast<uint32_t*>(bitmap.getPixels());
- SkCopyBitmapToConfig8888(bmpPixels, bitmap.rowBytes(), config8888, subset);
- return true;
-}
-
-void SkBitmapDevice::writePixels(const SkBitmap& bitmap,
- int x, int y,
- SkCanvas::Config8888 config8888) {
- if (bitmap.isNull() || bitmap.getTexture()) {
- return;
- }
- const SkBitmap* sprite = &bitmap;
- // check whether we have to handle a config8888 that doesn't match SkPMColor
- if (SkBitmap::kARGB_8888_Config == bitmap.config() &&
- SkCanvas::kNative_Premul_Config8888 != config8888 &&
- kPMColorAlias != config8888) {
-
- // We're going to have to convert from a config8888 to the native config
- // First we clip to the device bounds.
- SkBitmap dstBmp = this->accessBitmap(true);
- SkIRect spriteRect = SkIRect::MakeXYWH(x, y,
- bitmap.width(), bitmap.height());
- SkIRect devRect = SkIRect::MakeWH(dstBmp.width(), dstBmp.height());
- if (!spriteRect.intersect(devRect)) {
- return;
- }
-
- // write directly to the device if it has pixels and is SkPMColor
- bool drawSprite;
- if (SkBitmap::kARGB_8888_Config == dstBmp.config() && !dstBmp.isNull()) {
- // we can write directly to the dst when doing the conversion
- dstBmp.extractSubset(&dstBmp, spriteRect);
- drawSprite = false;
- } else {
- // we convert to a temporary bitmap and draw that as a sprite
- dstBmp.setConfig(SkBitmap::kARGB_8888_Config,
- spriteRect.width(),
- spriteRect.height());
- if (!dstBmp.allocPixels()) {
- return;
- }
- drawSprite = true;
- }
-
- // copy pixels to dstBmp and convert from config8888 to native config.
- SkAutoLockPixels alp(bitmap);
- uint32_t* srcPixels = bitmap.getAddr32(spriteRect.fLeft - x,
- spriteRect.fTop - y);
- SkCopyConfig8888ToBitmap(dstBmp,
- srcPixels,
- bitmap.rowBytes(),
- config8888);
-
- if (drawSprite) {
- // we've clipped the sprite when we made a copy
- x = spriteRect.fLeft;
- y = spriteRect.fTop;
- sprite = &dstBmp;
- } else {
- return;
- }
- }
-
- SkPaint paint;
- paint.setXfermodeMode(SkXfermode::kSrc_Mode);
- SkRasterClip clip(SkIRect::MakeWH(fBitmap.width(), fBitmap.height()));
- SkDraw draw;
- draw.fRC = &clip;
- draw.fClip = &clip.bwRgn();
- draw.fBitmap = &fBitmap; // canvas should have already called accessBitmap
- draw.fMatrix = &SkMatrix::I();
- this->drawSprite(draw, *sprite, x, y, paint);
-}
-
-///////////////////////////////////////////////////////////////////////////////
-
-void SkBitmapDevice::drawPaint(const SkDraw& draw, const SkPaint& paint) {
- draw.drawPaint(paint);
-}
-
-void SkBitmapDevice::drawPoints(const SkDraw& draw, SkCanvas::PointMode mode, size_t count,
- const SkPoint pts[], const SkPaint& paint) {
- CHECK_FOR_NODRAW_ANNOTATION(paint);
- draw.drawPoints(mode, count, pts, paint);
-}
-
-void SkBitmapDevice::drawRect(const SkDraw& draw, const SkRect& r, const SkPaint& paint) {
- CHECK_FOR_NODRAW_ANNOTATION(paint);
- draw.drawRect(r, paint);
-}
-
-void SkBitmapDevice::drawOval(const SkDraw& draw, const SkRect& oval, const SkPaint& paint) {
- CHECK_FOR_NODRAW_ANNOTATION(paint);
-
- SkPath path;
- path.addOval(oval);
- // call the VIRTUAL version, so any subclasses who do handle drawPath aren't
- // required to override drawOval.
- this->drawPath(draw, path, paint, NULL, true);
-}
-
-void SkBitmapDevice::drawRRect(const SkDraw& draw, const SkRRect& rrect, const SkPaint& paint) {
- CHECK_FOR_NODRAW_ANNOTATION(paint);
-
- SkPath path;
- path.addRRect(rrect);
- // call the VIRTUAL version, so any subclasses who do handle drawPath aren't
- // required to override drawRRect.
- this->drawPath(draw, path, paint, NULL, true);
-}
-
-void SkBitmapDevice::drawPath(const SkDraw& draw, const SkPath& path,
- const SkPaint& paint, const SkMatrix* prePathMatrix,
- bool pathIsMutable) {
- CHECK_FOR_NODRAW_ANNOTATION(paint);
- draw.drawPath(path, paint, prePathMatrix, pathIsMutable);
-}
-
-void SkBitmapDevice::drawBitmap(const SkDraw& draw, const SkBitmap& bitmap,
- const SkMatrix& matrix, const SkPaint& paint) {
- draw.drawBitmap(bitmap, matrix, paint);
-}
-
-void SkBitmapDevice::drawBitmapRect(const SkDraw& draw, const SkBitmap& bitmap,
- const SkRect* src, const SkRect& dst,
- const SkPaint& paint,
- SkCanvas::DrawBitmapRectFlags flags) {
- SkMatrix matrix;
- SkRect bitmapBounds, tmpSrc, tmpDst;
- SkBitmap tmpBitmap;
-
- bitmapBounds.isetWH(bitmap.width(), bitmap.height());
-
- // Compute matrix from the two rectangles
- if (src) {
- tmpSrc = *src;
- } else {
- tmpSrc = bitmapBounds;
- }
- matrix.setRectToRect(tmpSrc, dst, SkMatrix::kFill_ScaleToFit);
-
- const SkRect* dstPtr = &dst;
- const SkBitmap* bitmapPtr = &bitmap;
-
- // clip the tmpSrc to the bounds of the bitmap, and recompute dstRect if
- // needed (if the src was clipped). No check needed if src==null.
- if (src) {
- if (!bitmapBounds.contains(*src)) {
- if (!tmpSrc.intersect(bitmapBounds)) {
- return; // nothing to draw
- }
- // recompute dst, based on the smaller tmpSrc
- matrix.mapRect(&tmpDst, tmpSrc);
- dstPtr = &tmpDst;
- }
-
- // since we may need to clamp to the borders of the src rect within
- // the bitmap, we extract a subset.
- SkIRect srcIR;
- tmpSrc.roundOut(&srcIR);
- if (!bitmap.extractSubset(&tmpBitmap, srcIR)) {
- return;
- }
- bitmapPtr = &tmpBitmap;
-
- // Since we did an extract, we need to adjust the matrix accordingly
- SkScalar dx = 0, dy = 0;
- if (srcIR.fLeft > 0) {
- dx = SkIntToScalar(srcIR.fLeft);
- }
- if (srcIR.fTop > 0) {
- dy = SkIntToScalar(srcIR.fTop);
- }
- if (dx || dy) {
- matrix.preTranslate(dx, dy);
- }
-
- SkRect extractedBitmapBounds;
- extractedBitmapBounds.isetWH(bitmapPtr->width(), bitmapPtr->height());
- if (extractedBitmapBounds == tmpSrc) {
- // no fractional part in src, we can just call drawBitmap
- goto USE_DRAWBITMAP;
- }
- } else {
- USE_DRAWBITMAP:
- // We can go faster by just calling drawBitmap, which will concat the
- // matrix with the CTM, and try to call drawSprite if it can. If not,
- // it will make a shader and call drawRect, as we do below.
- this->drawBitmap(draw, *bitmapPtr, matrix, paint);
- return;
- }
-
- // construct a shader, so we can call drawRect with the dst
- SkShader* s = SkShader::CreateBitmapShader(*bitmapPtr,
- SkShader::kClamp_TileMode,
- SkShader::kClamp_TileMode);
- if (NULL == s) {
- return;
- }
- s->setLocalMatrix(matrix);
-
- SkPaint paintWithShader(paint);
- paintWithShader.setStyle(SkPaint::kFill_Style);
- paintWithShader.setShader(s)->unref();
-
- // Call ourself, in case the subclass wanted to share this setup code
- // but handle the drawRect code themselves.
- this->drawRect(draw, *dstPtr, paintWithShader);
-}
-
-void SkBitmapDevice::drawSprite(const SkDraw& draw, const SkBitmap& bitmap,
- int x, int y, const SkPaint& paint) {
- draw.drawSprite(bitmap, x, y, paint);
-}
-
-void SkBitmapDevice::drawText(const SkDraw& draw, const void* text, size_t len,
- SkScalar x, SkScalar y, const SkPaint& paint) {
- draw.drawText((const char*)text, len, x, y, paint);
-}
-
-void SkBitmapDevice::drawPosText(const SkDraw& draw, const void* text, size_t len,
- const SkScalar xpos[], SkScalar y,
- int scalarsPerPos, const SkPaint& paint) {
- draw.drawPosText((const char*)text, len, xpos, y, scalarsPerPos, paint);
-}
-
-void SkBitmapDevice::drawTextOnPath(const SkDraw& draw, const void* text,
- size_t len, const SkPath& path,
- const SkMatrix* matrix,
- const SkPaint& paint) {
- draw.drawTextOnPath((const char*)text, len, path, matrix, paint);
-}
-
-#ifdef SK_BUILD_FOR_ANDROID
-void SkBitmapDevice::drawPosTextOnPath(const SkDraw& draw, const void* text, size_t len,
- const SkPoint pos[], const SkPaint& paint,
- const SkPath& path, const SkMatrix* matrix) {
- draw.drawPosTextOnPath((const char*)text, len, pos, paint, path, matrix);
-}
-#endif
-
-void SkBitmapDevice::drawVertices(const SkDraw& draw, SkCanvas::VertexMode vmode,
- int vertexCount,
- const SkPoint verts[], const SkPoint textures[],
- const SkColor colors[], SkXfermode* xmode,
- const uint16_t indices[], int indexCount,
- const SkPaint& paint) {
- draw.drawVertices(vmode, vertexCount, verts, textures, colors, xmode,
- indices, indexCount, paint);
-}
-
-void SkBitmapDevice::drawDevice(const SkDraw& draw, SkBaseDevice* device,
- int x, int y, const SkPaint& paint) {
- const SkBitmap& src = device->accessBitmap(false);
- draw.drawSprite(src, x, y, paint);
-}
-
-///////////////////////////////////////////////////////////////////////////////
-
-bool SkBitmapDevice::filterTextFlags(const SkPaint& paint, TextFlags* flags) {
- if (!paint.isLCDRenderText() || !paint.isAntiAlias()) {
- // we're cool with the paint as is
- return false;
- }
-
- if (SkBitmap::kARGB_8888_Config != fBitmap.config() ||
- paint.getRasterizer() ||
- paint.getPathEffect() ||
- paint.isFakeBoldText() ||
- paint.getStyle() != SkPaint::kFill_Style ||
- !SkXfermode::IsMode(paint.getXfermode(), SkXfermode::kSrcOver_Mode)) {
- // turn off lcd
- flags->fFlags = paint.getFlags() & ~SkPaint::kLCDRenderText_Flag;
- flags->fHinting = paint.getHinting();
- return true;
- }
- // we're cool with the paint as is
- return false;
-}
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