| /* | |
| * Copyright 2011 Google Inc. | |
| * | |
| * Use of this source code is governed by a BSD-style license that can be | |
| * found in the LICENSE file. | |
| */ | |
| #include "SkGpuDevice.h" | |
| #include "effects/GrBicubicEffect.h" | |
| #include "effects/GrDashingEffect.h" | |
| #include "effects/GrPorterDuffXferProcessor.h" | |
| #include "effects/GrTextureDomain.h" | |
| #include "effects/GrSimpleTextureEffect.h" | |
| #include "GrContext.h" | |
| #include "GrBitmapTextContext.h" | |
| #include "GrDistanceFieldTextContext.h" | |
| #include "GrLayerHoister.h" | |
| #include "GrRecordReplaceDraw.h" | |
| #include "GrStrokeInfo.h" | |
| #include "GrTracing.h" | |
| #include "GrGpu.h" | |
| #include "SkGrTexturePixelRef.h" | |
| #include "SkCanvasPriv.h" | |
| #include "SkDeviceImageFilterProxy.h" | |
| #include "SkDrawProcs.h" | |
| #include "SkGlyphCache.h" | |
| #include "SkImageFilter.h" | |
| #include "SkLayerInfo.h" | |
| #include "SkMaskFilter.h" | |
| #include "SkPathEffect.h" | |
| #include "SkPicture.h" | |
| #include "SkPictureData.h" | |
| #include "SkRecord.h" | |
| #include "SkRRect.h" | |
| #include "SkStroke.h" | |
| #include "SkSurface.h" | |
| #include "SkTLazy.h" | |
| #include "SkUtils.h" | |
| #include "SkVertState.h" | |
| #include "SkXfermode.h" | |
| #include "SkErrorInternals.h" | |
| #if SK_SUPPORT_GPU | |
| enum { kDefaultImageFilterCacheSize = 32 * 1024 * 1024 }; | |
| #if 0 | |
| extern bool (*gShouldDrawProc)(); | |
| #define CHECK_SHOULD_DRAW(draw) \ | |
| do { \ | |
| if (gShouldDrawProc && !gShouldDrawProc()) return; \ | |
| this->prepareDraw(draw); \ | |
| } while (0) | |
| #else | |
| #define CHECK_SHOULD_DRAW(draw) this->prepareDraw(draw) | |
| #endif | |
| // This constant represents the screen alignment criterion in texels for | |
| // requiring texture domain clamping to prevent color bleeding when drawing | |
| // a sub region of a larger source image. | |
| #define COLOR_BLEED_TOLERANCE 0.001f | |
| #define DO_DEFERRED_CLEAR() \ | |
| do { \ | |
| if (fNeedClear) { \ | |
| this->clearAll(); \ | |
| } \ | |
| } while (false) \ | |
| /////////////////////////////////////////////////////////////////////////////// | |
| #define CHECK_FOR_ANNOTATION(paint) \ | |
| do { if (paint.getAnnotation()) { return; } } while (0) | |
| /////////////////////////////////////////////////////////////////////////////// | |
| // Helper for turning a bitmap into a texture. If the bitmap is GrTexture backed this | |
| // just accesses the backing GrTexture. Otherwise, it creates a cached texture | |
| // representation and releases it in the destructor. | |
| class AutoBitmapTexture : public SkNoncopyable { | |
| public: | |
| AutoBitmapTexture() {} | |
| AutoBitmapTexture(GrContext* context, | |
| const SkBitmap& bitmap, | |
| const GrTextureParams* params, | |
| GrTexture** texture) { | |
| SkASSERT(texture); | |
| *texture = this->set(context, bitmap, params); | |
| } | |
| GrTexture* set(GrContext* context, | |
| const SkBitmap& bitmap, | |
| const GrTextureParams* params) { | |
| // Either get the texture directly from the bitmap, or else use the cache and | |
| // remember to unref it. | |
| if (GrTexture* bmpTexture = bitmap.getTexture()) { | |
| fTexture.reset(NULL); | |
| return bmpTexture; | |
| } else { | |
| fTexture.reset(GrRefCachedBitmapTexture(context, bitmap, params)); | |
| return fTexture.get(); | |
| } | |
| } | |
| private: | |
| SkAutoTUnref<GrTexture> fTexture; | |
| }; | |
| /////////////////////////////////////////////////////////////////////////////// | |
| struct GrSkDrawProcs : public SkDrawProcs { | |
| public: | |
| GrContext* fContext; | |
| GrTextContext* fTextContext; | |
| GrFontScaler* fFontScaler; // cached in the skia glyphcache | |
| }; | |
| /////////////////////////////////////////////////////////////////////////////// | |
| SkGpuDevice* SkGpuDevice::Create(GrRenderTarget* rt, const SkSurfaceProps* props, unsigned flags) { | |
| if (!rt || rt->wasDestroyed()) { | |
| return NULL; | |
| } | |
| return SkNEW_ARGS(SkGpuDevice, (rt, props, flags)); | |
| } | |
| static SkDeviceProperties surfaceprops_to_deviceprops(const SkSurfaceProps* props) { | |
| if (props) { | |
| return SkDeviceProperties(props->pixelGeometry()); | |
| } else { | |
| return SkDeviceProperties(SkDeviceProperties::kLegacyLCD_InitType); | |
| } | |
| } | |
| static SkSurfaceProps copy_or_default_props(const SkSurfaceProps* props) { | |
| if (props) { | |
| return SkSurfaceProps(*props); | |
| } else { | |
| return SkSurfaceProps(SkSurfaceProps::kLegacyFontHost_InitType); | |
| } | |
| } | |
| SkGpuDevice::SkGpuDevice(GrRenderTarget* rt, const SkSurfaceProps* props, unsigned flags) | |
| : INHERITED(surfaceprops_to_deviceprops(props)) | |
| , fSurfaceProps(copy_or_default_props(props)) | |
| { | |
| fDrawProcs = NULL; | |
| fContext = SkRef(rt->getContext()); | |
| fNeedClear = flags & kNeedClear_Flag; | |
| fRenderTarget = SkRef(rt); | |
| SkImageInfo info = rt->surfacePriv().info(); | |
| SkPixelRef* pr = SkNEW_ARGS(SkGrPixelRef, (info, rt)); | |
| fLegacyBitmap.setInfo(info); | |
| fLegacyBitmap.setPixelRef(pr)->unref(); | |
| bool useDFT = fSurfaceProps.isUseDistanceFieldFonts(); | |
| fTextContext = fContext->createTextContext(fRenderTarget, this->getLeakyProperties(), useDFT); | |
| } | |
| SkGpuDevice* SkGpuDevice::Create(GrContext* context, SkSurface::Budgeted budgeted, | |
| const SkImageInfo& origInfo, int sampleCount, | |
| const SkSurfaceProps* props, unsigned flags) { | |
| if (kUnknown_SkColorType == origInfo.colorType() || | |
| origInfo.width() < 0 || origInfo.height() < 0) { | |
| return NULL; | |
| } | |
| if (!context) { | |
| return NULL; | |
| } | |
| SkColorType ct = origInfo.colorType(); | |
| SkAlphaType at = origInfo.alphaType(); | |
| if (kRGB_565_SkColorType == ct) { | |
| at = kOpaque_SkAlphaType; // force this setting | |
| } else if (ct != kBGRA_8888_SkColorType && ct != kRGBA_8888_SkColorType) { | |
| // Fall back from whatever ct was to default of kRGBA or kBGRA which is aliased as kN32 | |
| ct = kN32_SkColorType; | |
| } | |
| if (kOpaque_SkAlphaType != at) { | |
| at = kPremul_SkAlphaType; // force this setting | |
| } | |
| const SkImageInfo info = SkImageInfo::Make(origInfo.width(), origInfo.height(), ct, at); | |
| GrSurfaceDesc desc; | |
| desc.fFlags = kRenderTarget_GrSurfaceFlag; | |
| desc.fWidth = info.width(); | |
| desc.fHeight = info.height(); | |
| desc.fConfig = SkImageInfo2GrPixelConfig(info); | |
| desc.fSampleCnt = sampleCount; | |
| SkAutoTUnref<GrTexture> texture; | |
| if (SkSurface::kYes_Budgeted == budgeted) { | |
| texture.reset(context->refScratchTexture(desc, GrContext::kExact_ScratchTexMatch)); | |
| } else { | |
| texture.reset(context->createUncachedTexture(desc, NULL, 0)); | |
| } | |
| if (!texture) { | |
| return NULL; | |
| } | |
| return SkNEW_ARGS(SkGpuDevice, (texture->asRenderTarget(), props, flags)); | |
| } | |
| SkGpuDevice::~SkGpuDevice() { | |
| if (fDrawProcs) { | |
| delete fDrawProcs; | |
| } | |
| delete fTextContext; | |
| // The GrContext takes a ref on the target. We don't want to cause the render | |
| // target to be unnecessarily kept alive. | |
| if (fContext->getRenderTarget() == fRenderTarget) { | |
| fContext->setRenderTarget(NULL); | |
| } | |
| if (fContext->getClip() == &fClipData) { | |
| fContext->setClip(NULL); | |
| } | |
| fRenderTarget->unref(); | |
| fContext->unref(); | |
| } | |
| /////////////////////////////////////////////////////////////////////////////// | |
| bool SkGpuDevice::onReadPixels(const SkImageInfo& dstInfo, void* dstPixels, size_t dstRowBytes, | |
| int x, int y) { | |
| DO_DEFERRED_CLEAR(); | |
| // TODO: teach fRenderTarget to take ImageInfo directly to specify the src pixels | |
| GrPixelConfig config = SkImageInfo2GrPixelConfig(dstInfo); | |
| if (kUnknown_GrPixelConfig == config) { | |
| return false; | |
| } | |
| uint32_t flags = 0; | |
| if (kUnpremul_SkAlphaType == dstInfo.alphaType()) { | |
| flags = GrContext::kUnpremul_PixelOpsFlag; | |
| } | |
| return fContext->readRenderTargetPixels(fRenderTarget, x, y, dstInfo.width(), dstInfo.height(), | |
| config, dstPixels, dstRowBytes, flags); | |
| } | |
| bool SkGpuDevice::onWritePixels(const SkImageInfo& info, const void* pixels, size_t rowBytes, | |
| int x, int y) { | |
| // TODO: teach fRenderTarget to take ImageInfo directly to specify the src pixels | |
| GrPixelConfig config = SkImageInfo2GrPixelConfig(info); | |
| if (kUnknown_GrPixelConfig == config) { | |
| return false; | |
| } | |
| uint32_t flags = 0; | |
| if (kUnpremul_SkAlphaType == info.alphaType()) { | |
| flags = GrContext::kUnpremul_PixelOpsFlag; | |
| } | |
| fRenderTarget->writePixels(x, y, info.width(), info.height(), config, pixels, rowBytes, flags); | |
| // need to bump our genID for compatibility with clients that "know" we have a bitmap | |
| fLegacyBitmap.notifyPixelsChanged(); | |
| return true; | |
| } | |
| const SkBitmap& SkGpuDevice::onAccessBitmap() { | |
| DO_DEFERRED_CLEAR(); | |
| return fLegacyBitmap; | |
| } | |
| void SkGpuDevice::onAttachToCanvas(SkCanvas* canvas) { | |
| INHERITED::onAttachToCanvas(canvas); | |
| // Canvas promises that this ptr is valid until onDetachFromCanvas is called | |
| fClipData.fClipStack = canvas->getClipStack(); | |
| } | |
| void SkGpuDevice::onDetachFromCanvas() { | |
| INHERITED::onDetachFromCanvas(); | |
| fClipData.fClipStack = NULL; | |
| } | |
| // call this every draw call, to ensure that the context reflects our state, | |
| // and not the state from some other canvas/device | |
| void SkGpuDevice::prepareDraw(const SkDraw& draw) { | |
| SkASSERT(fClipData.fClipStack); | |
| fContext->setRenderTarget(fRenderTarget); | |
| SkASSERT(draw.fClipStack && draw.fClipStack == fClipData.fClipStack); | |
| fClipData.fOrigin = this->getOrigin(); | |
| fContext->setClip(&fClipData); | |
| DO_DEFERRED_CLEAR(); | |
| } | |
| GrRenderTarget* SkGpuDevice::accessRenderTarget() { | |
| DO_DEFERRED_CLEAR(); | |
| return fRenderTarget; | |
| } | |
| void SkGpuDevice::clearAll() { | |
| GrColor color = 0; | |
| GR_CREATE_TRACE_MARKER_CONTEXT("SkGpuDevice::clearAll", fContext); | |
| SkIRect rect = SkIRect::MakeWH(this->width(), this->height()); | |
| fContext->clear(&rect, color, true, fRenderTarget); | |
| fNeedClear = false; | |
| } | |
| /////////////////////////////////////////////////////////////////////////////// | |
| SK_COMPILE_ASSERT(SkShader::kNone_BitmapType == 0, shader_type_mismatch); | |
| SK_COMPILE_ASSERT(SkShader::kDefault_BitmapType == 1, shader_type_mismatch); | |
| SK_COMPILE_ASSERT(SkShader::kRadial_BitmapType == 2, shader_type_mismatch); | |
| SK_COMPILE_ASSERT(SkShader::kSweep_BitmapType == 3, shader_type_mismatch); | |
| SK_COMPILE_ASSERT(SkShader::kTwoPointRadial_BitmapType == 4, | |
| shader_type_mismatch); | |
| SK_COMPILE_ASSERT(SkShader::kTwoPointConical_BitmapType == 5, | |
| shader_type_mismatch); | |
| SK_COMPILE_ASSERT(SkShader::kLinear_BitmapType == 6, shader_type_mismatch); | |
| SK_COMPILE_ASSERT(SkShader::kLast_BitmapType == 6, shader_type_mismatch); | |
| /////////////////////////////////////////////////////////////////////////////// | |
| void SkGpuDevice::drawPaint(const SkDraw& draw, const SkPaint& paint) { | |
| CHECK_SHOULD_DRAW(draw); | |
| GR_CREATE_TRACE_MARKER_CONTEXT("SkGpuDevice::drawPaint", fContext); | |
| GrPaint grPaint; | |
| SkPaint2GrPaintShader(this->context(), paint, *draw.fMatrix, true, &grPaint); | |
| fContext->drawPaint(grPaint, *draw.fMatrix); | |
| } | |
| // must be in SkCanvas::PointMode order | |
| static const GrPrimitiveType gPointMode2PrimtiveType[] = { | |
| kPoints_GrPrimitiveType, | |
| kLines_GrPrimitiveType, | |
| kLineStrip_GrPrimitiveType | |
| }; | |
| void SkGpuDevice::drawPoints(const SkDraw& draw, SkCanvas::PointMode mode, | |
| size_t count, const SkPoint pts[], const SkPaint& paint) { | |
| CHECK_FOR_ANNOTATION(paint); | |
| CHECK_SHOULD_DRAW(draw); | |
| SkScalar width = paint.getStrokeWidth(); | |
| if (width < 0) { | |
| return; | |
| } | |
| if (paint.getPathEffect() && 2 == count && SkCanvas::kLines_PointMode == mode) { | |
| GrStrokeInfo strokeInfo(paint, SkPaint::kStroke_Style); | |
| GrPaint grPaint; | |
| SkPaint2GrPaintShader(this->context(), paint, *draw.fMatrix, true, &grPaint); | |
| SkPath path; | |
| path.setIsVolatile(true); | |
| path.moveTo(pts[0]); | |
| path.lineTo(pts[1]); | |
| fContext->drawPath(grPaint, *draw.fMatrix, path, strokeInfo); | |
| return; | |
| } | |
| // we only handle hairlines and paints without path effects or mask filters, | |
| // else we let the SkDraw call our drawPath() | |
| if (width > 0 || paint.getPathEffect() || paint.getMaskFilter()) { | |
| draw.drawPoints(mode, count, pts, paint, true); | |
| return; | |
| } | |
| GrPaint grPaint; | |
| SkPaint2GrPaintShader(this->context(), paint, *draw.fMatrix, true, &grPaint); | |
| fContext->drawVertices(grPaint, | |
| *draw.fMatrix, | |
| gPointMode2PrimtiveType[mode], | |
| SkToS32(count), | |
| (SkPoint*)pts, | |
| NULL, | |
| NULL, | |
| NULL, | |
| 0); | |
| } | |
| /////////////////////////////////////////////////////////////////////////////// | |
| void SkGpuDevice::drawRect(const SkDraw& draw, const SkRect& rect, | |
| const SkPaint& paint) { | |
| GR_CREATE_TRACE_MARKER_CONTEXT("SkGpuDevice::drawRect", fContext); | |
| CHECK_FOR_ANNOTATION(paint); | |
| CHECK_SHOULD_DRAW(draw); | |
| bool doStroke = paint.getStyle() != SkPaint::kFill_Style; | |
| SkScalar width = paint.getStrokeWidth(); | |
| /* | |
| We have special code for hairline strokes, miter-strokes, bevel-stroke | |
| and fills. Anything else we just call our path code. | |
| */ | |
| bool usePath = doStroke && width > 0 && | |
| (paint.getStrokeJoin() == SkPaint::kRound_Join || | |
| (paint.getStrokeJoin() == SkPaint::kBevel_Join && rect.isEmpty())); | |
| // another two reasons we might need to call drawPath... | |
| if (paint.getMaskFilter()) { | |
| usePath = true; | |
| } | |
| if (!usePath && paint.isAntiAlias() && !draw.fMatrix->rectStaysRect()) { | |
| #if defined(SHADER_AA_FILL_RECT) || !defined(IGNORE_ROT_AA_RECT_OPT) | |
| if (doStroke) { | |
| #endif | |
| usePath = true; | |
| #if defined(SHADER_AA_FILL_RECT) || !defined(IGNORE_ROT_AA_RECT_OPT) | |
| } else { | |
| usePath = !draw.fMatrix->preservesRightAngles(); | |
| } | |
| #endif | |
| } | |
| // until we can both stroke and fill rectangles | |
| if (paint.getStyle() == SkPaint::kStrokeAndFill_Style) { | |
| usePath = true; | |
| } | |
| GrStrokeInfo strokeInfo(paint); | |
| const SkPathEffect* pe = paint.getPathEffect(); | |
| if (!usePath && pe && !strokeInfo.isDashed()) { | |
| usePath = true; | |
| } | |
| if (usePath) { | |
| SkPath path; | |
| path.setIsVolatile(true); | |
| path.addRect(rect); | |
| this->drawPath(draw, path, paint, NULL, true); | |
| return; | |
| } | |
| GrPaint grPaint; | |
| SkPaint2GrPaintShader(this->context(), paint, *draw.fMatrix, true, &grPaint); | |
| fContext->drawRect(grPaint, *draw.fMatrix, rect, &strokeInfo); | |
| } | |
| /////////////////////////////////////////////////////////////////////////////// | |
| void SkGpuDevice::drawRRect(const SkDraw& draw, const SkRRect& rect, | |
| const SkPaint& paint) { | |
| GR_CREATE_TRACE_MARKER_CONTEXT("SkGpuDevice::drawRRect", fContext); | |
| CHECK_FOR_ANNOTATION(paint); | |
| CHECK_SHOULD_DRAW(draw); | |
| GrPaint grPaint; | |
| SkPaint2GrPaintShader(this->context(), paint, *draw.fMatrix, true, &grPaint); | |
| GrStrokeInfo strokeInfo(paint); | |
| if (paint.getMaskFilter()) { | |
| // try to hit the fast path for drawing filtered round rects | |
| SkRRect devRRect; | |
| if (rect.transform(*draw.fMatrix, &devRRect)) { | |
| if (devRRect.allCornersCircular()) { | |
| SkRect maskRect; | |
| if (paint.getMaskFilter()->canFilterMaskGPU(devRRect.rect(), | |
| draw.fClip->getBounds(), | |
| *draw.fMatrix, | |
| &maskRect)) { | |
| SkIRect finalIRect; | |
| maskRect.roundOut(&finalIRect); | |
| if (draw.fClip->quickReject(finalIRect)) { | |
| // clipped out | |
| return; | |
| } | |
| if (paint.getMaskFilter()->directFilterRRectMaskGPU(fContext, &grPaint, | |
| *draw.fMatrix, | |
| strokeInfo.getStrokeRec(), | |
| devRRect)) { | |
| return; | |
| } | |
| } | |
| } | |
| } | |
| } | |
| bool usePath = false; | |
| if (paint.getMaskFilter()) { | |
| usePath = true; | |
| } else { | |
| const SkPathEffect* pe = paint.getPathEffect(); | |
| if (pe && !strokeInfo.isDashed()) { | |
| usePath = true; | |
| } | |
| } | |
| if (usePath) { | |
| SkPath path; | |
| path.setIsVolatile(true); | |
| path.addRRect(rect); | |
| this->drawPath(draw, path, paint, NULL, true); | |
| return; | |
| } | |
| fContext->drawRRect(grPaint, *draw.fMatrix, rect, strokeInfo); | |
| } | |
| void SkGpuDevice::drawDRRect(const SkDraw& draw, const SkRRect& outer, | |
| const SkRRect& inner, const SkPaint& paint) { | |
| SkStrokeRec stroke(paint); | |
| if (stroke.isFillStyle()) { | |
| CHECK_FOR_ANNOTATION(paint); | |
| CHECK_SHOULD_DRAW(draw); | |
| GrPaint grPaint; | |
| SkPaint2GrPaintShader(this->context(), paint, *draw.fMatrix, true, &grPaint); | |
| if (NULL == paint.getMaskFilter() && NULL == paint.getPathEffect()) { | |
| fContext->drawDRRect(grPaint, *draw.fMatrix, outer, inner); | |
| return; | |
| } | |
| } | |
| SkPath path; | |
| path.setIsVolatile(true); | |
| path.addRRect(outer); | |
| path.addRRect(inner); | |
| path.setFillType(SkPath::kEvenOdd_FillType); | |
| this->drawPath(draw, path, paint, NULL, true); | |
| } | |
| ///////////////////////////////////////////////////////////////////////////// | |
| void SkGpuDevice::drawOval(const SkDraw& draw, const SkRect& oval, | |
| const SkPaint& paint) { | |
| GR_CREATE_TRACE_MARKER_CONTEXT("SkGpuDevice::drawOval", fContext); | |
| CHECK_FOR_ANNOTATION(paint); | |
| CHECK_SHOULD_DRAW(draw); | |
| GrStrokeInfo strokeInfo(paint); | |
| bool usePath = false; | |
| // some basic reasons we might need to call drawPath... | |
| if (paint.getMaskFilter()) { | |
| usePath = true; | |
| } else { | |
| const SkPathEffect* pe = paint.getPathEffect(); | |
| if (pe && !strokeInfo.isDashed()) { | |
| usePath = true; | |
| } | |
| } | |
| if (usePath) { | |
| SkPath path; | |
| path.setIsVolatile(true); | |
| path.addOval(oval); | |
| this->drawPath(draw, path, paint, NULL, true); | |
| return; | |
| } | |
| GrPaint grPaint; | |
| SkPaint2GrPaintShader(this->context(), paint, *draw.fMatrix, true, &grPaint); | |
| fContext->drawOval(grPaint, *draw.fMatrix, oval, strokeInfo); | |
| } | |
| #include "SkMaskFilter.h" | |
| /////////////////////////////////////////////////////////////////////////////// | |
| // helpers for applying mask filters | |
| namespace { | |
| // Draw a mask using the supplied paint. Since the coverage/geometry | |
| // is already burnt into the mask this boils down to a rect draw. | |
| // Return true if the mask was successfully drawn. | |
| bool draw_mask(GrContext* context, const SkMatrix& viewMatrix, const SkRect& maskRect, | |
| GrPaint* grp, GrTexture* mask) { | |
| SkMatrix matrix; | |
| matrix.setTranslate(-maskRect.fLeft, -maskRect.fTop); | |
| matrix.postIDiv(mask->width(), mask->height()); | |
| grp->addCoverageProcessor(GrSimpleTextureEffect::Create(mask, matrix, | |
| kDevice_GrCoordSet))->unref(); | |
| SkMatrix inverse; | |
| if (!viewMatrix.invert(&inverse)) { | |
| return false; | |
| } | |
| context->drawNonAARectWithLocalMatrix(*grp, SkMatrix::I(), maskRect, inverse); | |
| return true; | |
| } | |
| bool draw_with_mask_filter(GrContext* context, const SkMatrix& viewMatrix, const SkPath& devPath, | |
| SkMaskFilter* filter, const SkRegion& clip, | |
| GrPaint* grp, SkPaint::Style style) { | |
| SkMask srcM, dstM; | |
| if (!SkDraw::DrawToMask(devPath, &clip.getBounds(), filter, &viewMatrix, &srcM, | |
| SkMask::kComputeBoundsAndRenderImage_CreateMode, style)) { | |
| return false; | |
| } | |
| SkAutoMaskFreeImage autoSrc(srcM.fImage); | |
| if (!filter->filterMask(&dstM, srcM, viewMatrix, NULL)) { | |
| return false; | |
| } | |
| // this will free-up dstM when we're done (allocated in filterMask()) | |
| SkAutoMaskFreeImage autoDst(dstM.fImage); | |
| if (clip.quickReject(dstM.fBounds)) { | |
| return false; | |
| } | |
| // we now have a device-aligned 8bit mask in dstM, ready to be drawn using | |
| // the current clip (and identity matrix) and GrPaint settings | |
| GrSurfaceDesc desc; | |
| desc.fWidth = dstM.fBounds.width(); | |
| desc.fHeight = dstM.fBounds.height(); | |
| desc.fConfig = kAlpha_8_GrPixelConfig; | |
| SkAutoTUnref<GrTexture> texture( | |
| context->refScratchTexture(desc, GrContext::kApprox_ScratchTexMatch)); | |
| if (!texture) { | |
| return false; | |
| } | |
| texture->writePixels(0, 0, desc.fWidth, desc.fHeight, desc.fConfig, | |
| dstM.fImage, dstM.fRowBytes); | |
| SkRect maskRect = SkRect::Make(dstM.fBounds); | |
| return draw_mask(context, viewMatrix, maskRect, grp, texture); | |
| } | |
| // Create a mask of 'devPath' and place the result in 'mask'. | |
| GrTexture* create_mask_GPU(GrContext* context, | |
| const SkRect& maskRect, | |
| const SkPath& devPath, | |
| const GrStrokeInfo& strokeInfo, | |
| bool doAA, | |
| int sampleCnt) { | |
| GrSurfaceDesc desc; | |
| desc.fFlags = kRenderTarget_GrSurfaceFlag; | |
| desc.fWidth = SkScalarCeilToInt(maskRect.width()); | |
| desc.fHeight = SkScalarCeilToInt(maskRect.height()); | |
| desc.fSampleCnt = doAA ? sampleCnt : 0; | |
| // We actually only need A8, but it often isn't supported as a | |
| // render target so default to RGBA_8888 | |
| desc.fConfig = kRGBA_8888_GrPixelConfig; | |
| if (context->isConfigRenderable(kAlpha_8_GrPixelConfig, | |
| desc.fSampleCnt > 0)) { | |
| desc.fConfig = kAlpha_8_GrPixelConfig; | |
| } | |
| GrTexture* mask = context->refScratchTexture(desc,GrContext::kApprox_ScratchTexMatch); | |
| if (NULL == mask) { | |
| return NULL; | |
| } | |
| SkRect clipRect = SkRect::MakeWH(maskRect.width(), maskRect.height()); | |
| GrContext::AutoRenderTarget art(context, mask->asRenderTarget()); | |
| GrContext::AutoClip ac(context, clipRect); | |
| context->clear(NULL, 0x0, true, mask->asRenderTarget()); | |
| GrPaint tempPaint; | |
| if (doAA) { | |
| tempPaint.setAntiAlias(true); | |
| // AA uses the "coverage" stages on GrDrawTarget. Coverage with a dst | |
| // blend coeff of zero requires dual source blending support in order | |
| // to properly blend partially covered pixels. This means the AA | |
| // code path may not be taken. So we use a dst blend coeff of ISA. We | |
| // could special case AA draws to a dst surface with known alpha=0 to | |
| // use a zero dst coeff when dual source blending isn't available. | |
| tempPaint.setPorterDuffXPFactory(kOne_GrBlendCoeff, kISC_GrBlendCoeff); | |
| } | |
| // Draw the mask into maskTexture with the path's top-left at the origin using tempPaint. | |
| SkMatrix translate; | |
| translate.setTranslate(-maskRect.fLeft, -maskRect.fTop); | |
| context->drawPath(tempPaint, translate, devPath, strokeInfo); | |
| return mask; | |
| } | |
| SkBitmap wrap_texture(GrTexture* texture) { | |
| SkBitmap result; | |
| result.setInfo(texture->surfacePriv().info()); | |
| result.setPixelRef(SkNEW_ARGS(SkGrPixelRef, (result.info(), texture)))->unref(); | |
| return result; | |
| } | |
| }; | |
| void SkGpuDevice::drawPath(const SkDraw& draw, const SkPath& origSrcPath, | |
| const SkPaint& paint, const SkMatrix* prePathMatrix, | |
| bool pathIsMutable) { | |
| CHECK_FOR_ANNOTATION(paint); | |
| CHECK_SHOULD_DRAW(draw); | |
| GR_CREATE_TRACE_MARKER_CONTEXT("SkGpuDevice::drawPath", fContext); | |
| SkASSERT(!pathIsMutable || origSrcPath.isVolatile()); | |
| GrPaint grPaint; | |
| SkPaint2GrPaintShader(this->context(), paint, *draw.fMatrix, true, &grPaint); | |
| // If we have a prematrix, apply it to the path, optimizing for the case | |
| // where the original path can in fact be modified in place (even though | |
| // its parameter type is const). | |
| SkPath* pathPtr = const_cast<SkPath*>(&origSrcPath); | |
| SkTLazy<SkPath> tmpPath; | |
| SkTLazy<SkPath> effectPath; | |
| if (prePathMatrix) { | |
| SkPath* result = pathPtr; | |
| if (!pathIsMutable) { | |
| result = tmpPath.init(); | |
| result->setIsVolatile(true); | |
| pathIsMutable = true; | |
| } | |
| // should I push prePathMatrix on our MV stack temporarily, instead | |
| // of applying it here? See SkDraw.cpp | |
| pathPtr->transform(*prePathMatrix, result); | |
| pathPtr = result; | |
| } | |
| // at this point we're done with prePathMatrix | |
| SkDEBUGCODE(prePathMatrix = (const SkMatrix*)0x50FF8001;) | |
| GrStrokeInfo strokeInfo(paint); | |
| SkPathEffect* pathEffect = paint.getPathEffect(); | |
| const SkRect* cullRect = NULL; // TODO: what is our bounds? | |
| SkStrokeRec* strokePtr = strokeInfo.getStrokeRecPtr(); | |
| if (pathEffect && pathEffect->filterPath(effectPath.init(), *pathPtr, strokePtr, | |
| cullRect)) { | |
| pathPtr = effectPath.get(); | |
| pathIsMutable = true; | |
| strokeInfo.removeDash(); | |
| } | |
| const SkStrokeRec& stroke = strokeInfo.getStrokeRec(); | |
| if (paint.getMaskFilter()) { | |
| if (!stroke.isHairlineStyle()) { | |
| SkPath* strokedPath = pathIsMutable ? pathPtr : tmpPath.init(); | |
| if (stroke.applyToPath(strokedPath, *pathPtr)) { | |
| pathPtr = strokedPath; | |
| pathIsMutable = true; | |
| strokeInfo.setFillStyle(); | |
| } | |
| } | |
| // avoid possibly allocating a new path in transform if we can | |
| SkPath* devPathPtr = pathIsMutable ? pathPtr : tmpPath.init(); | |
| if (!pathIsMutable) { | |
| devPathPtr->setIsVolatile(true); | |
| } | |
| // transform the path into device space | |
| pathPtr->transform(*draw.fMatrix, devPathPtr); | |
| SkRect maskRect; | |
| if (paint.getMaskFilter()->canFilterMaskGPU(devPathPtr->getBounds(), | |
| draw.fClip->getBounds(), | |
| *draw.fMatrix, | |
| &maskRect)) { | |
| // The context's matrix may change while creating the mask, so save the CTM here to | |
| // pass to filterMaskGPU. | |
| const SkMatrix ctm = *draw.fMatrix; | |
| SkIRect finalIRect; | |
| maskRect.roundOut(&finalIRect); | |
| if (draw.fClip->quickReject(finalIRect)) { | |
| // clipped out | |
| return; | |
| } | |
| if (paint.getMaskFilter()->directFilterMaskGPU(fContext, &grPaint, *draw.fMatrix, | |
| stroke, *devPathPtr)) { | |
| // the mask filter was able to draw itself directly, so there's nothing | |
| // left to do. | |
| return; | |
| } | |
| SkAutoTUnref<GrTexture> mask(create_mask_GPU(fContext, maskRect, *devPathPtr, | |
| strokeInfo, grPaint.isAntiAlias(), | |
| fRenderTarget->numSamples())); | |
| if (mask) { | |
| GrTexture* filtered; | |
| if (paint.getMaskFilter()->filterMaskGPU(mask, ctm, maskRect, &filtered, true)) { | |
| // filterMaskGPU gives us ownership of a ref to the result | |
| SkAutoTUnref<GrTexture> atu(filtered); | |
| if (draw_mask(fContext, *draw.fMatrix, maskRect, &grPaint, filtered)) { | |
| // This path is completely drawn | |
| return; | |
| } | |
| } | |
| } | |
| } | |
| // draw the mask on the CPU - this is a fallthrough path in case the | |
| // GPU path fails | |
| SkPaint::Style style = stroke.isHairlineStyle() ? SkPaint::kStroke_Style : | |
| SkPaint::kFill_Style; | |
| draw_with_mask_filter(fContext, *draw.fMatrix, *devPathPtr, paint.getMaskFilter(), | |
| *draw.fClip, &grPaint, style); | |
| return; | |
| } | |
| fContext->drawPath(grPaint, *draw.fMatrix, *pathPtr, strokeInfo); | |
| } | |
| static const int kBmpSmallTileSize = 1 << 10; | |
| static inline int get_tile_count(const SkIRect& srcRect, int tileSize) { | |
| int tilesX = (srcRect.fRight / tileSize) - (srcRect.fLeft / tileSize) + 1; | |
| int tilesY = (srcRect.fBottom / tileSize) - (srcRect.fTop / tileSize) + 1; | |
| return tilesX * tilesY; | |
| } | |
| static int determine_tile_size(const SkBitmap& bitmap, const SkIRect& src, int maxTileSize) { | |
| if (maxTileSize <= kBmpSmallTileSize) { | |
| return maxTileSize; | |
| } | |
| size_t maxTileTotalTileSize = get_tile_count(src, maxTileSize); | |
| size_t smallTotalTileSize = get_tile_count(src, kBmpSmallTileSize); | |
| maxTileTotalTileSize *= maxTileSize * maxTileSize; | |
| smallTotalTileSize *= kBmpSmallTileSize * kBmpSmallTileSize; | |
| if (maxTileTotalTileSize > 2 * smallTotalTileSize) { | |
| return kBmpSmallTileSize; | |
| } else { | |
| return maxTileSize; | |
| } | |
| } | |
| // Given a bitmap, an optional src rect, and a context with a clip and matrix determine what | |
| // pixels from the bitmap are necessary. | |
| static void determine_clipped_src_rect(const GrContext* context, | |
| const SkMatrix& viewMatrix, | |
| const SkBitmap& bitmap, | |
| const SkRect* srcRectPtr, | |
| SkIRect* clippedSrcIRect) { | |
| const GrClipData* clip = context->getClip(); | |
| clip->getConservativeBounds(context->getRenderTarget(), clippedSrcIRect, NULL); | |
| SkMatrix inv; | |
| if (!viewMatrix.invert(&inv)) { | |
| clippedSrcIRect->setEmpty(); | |
| return; | |
| } | |
| SkRect clippedSrcRect = SkRect::Make(*clippedSrcIRect); | |
| inv.mapRect(&clippedSrcRect); | |
| if (srcRectPtr) { | |
| // we've setup src space 0,0 to map to the top left of the src rect. | |
| clippedSrcRect.offset(srcRectPtr->fLeft, srcRectPtr->fTop); | |
| if (!clippedSrcRect.intersect(*srcRectPtr)) { | |
| clippedSrcIRect->setEmpty(); | |
| return; | |
| } | |
| } | |
| clippedSrcRect.roundOut(clippedSrcIRect); | |
| SkIRect bmpBounds = SkIRect::MakeWH(bitmap.width(), bitmap.height()); | |
| if (!clippedSrcIRect->intersect(bmpBounds)) { | |
| clippedSrcIRect->setEmpty(); | |
| } | |
| } | |
| bool SkGpuDevice::shouldTileBitmap(const SkBitmap& bitmap, | |
| const SkMatrix& viewMatrix, | |
| const GrTextureParams& params, | |
| const SkRect* srcRectPtr, | |
| int maxTileSize, | |
| int* tileSize, | |
| SkIRect* clippedSrcRect) const { | |
| // if bitmap is explictly texture backed then just use the texture | |
| if (bitmap.getTexture()) { | |
| return false; | |
| } | |
| // if it's larger than the max tile size, then we have no choice but tiling. | |
| if (bitmap.width() > maxTileSize || bitmap.height() > maxTileSize) { | |
| determine_clipped_src_rect(fContext, viewMatrix, bitmap, srcRectPtr, clippedSrcRect); | |
| *tileSize = determine_tile_size(bitmap, *clippedSrcRect, maxTileSize); | |
| return true; | |
| } | |
| if (bitmap.width() * bitmap.height() < 4 * kBmpSmallTileSize * kBmpSmallTileSize) { | |
| return false; | |
| } | |
| // if the entire texture is already in our cache then no reason to tile it | |
| if (GrIsBitmapInCache(fContext, bitmap, ¶ms)) { | |
| return false; | |
| } | |
| // At this point we know we could do the draw by uploading the entire bitmap | |
| // as a texture. However, if the texture would be large compared to the | |
| // cache size and we don't require most of it for this draw then tile to | |
| // reduce the amount of upload and cache spill. | |
| // assumption here is that sw bitmap size is a good proxy for its size as | |
| // a texture | |
| size_t bmpSize = bitmap.getSize(); | |
| size_t cacheSize; | |
| fContext->getResourceCacheLimits(NULL, &cacheSize); | |
| if (bmpSize < cacheSize / 2) { | |
| return false; | |
| } | |
| // Figure out how much of the src we will need based on the src rect and clipping. | |
| determine_clipped_src_rect(fContext, viewMatrix, bitmap, srcRectPtr, clippedSrcRect); | |
| *tileSize = kBmpSmallTileSize; // already know whole bitmap fits in one max sized tile. | |
| size_t usedTileBytes = get_tile_count(*clippedSrcRect, kBmpSmallTileSize) * | |
| kBmpSmallTileSize * kBmpSmallTileSize; | |
| return usedTileBytes < 2 * bmpSize; | |
| } | |
| void SkGpuDevice::drawBitmap(const SkDraw& origDraw, | |
| const SkBitmap& bitmap, | |
| const SkMatrix& m, | |
| const SkPaint& paint) { | |
| SkMatrix concat; | |
| SkTCopyOnFirstWrite<SkDraw> draw(origDraw); | |
| if (!m.isIdentity()) { | |
| concat.setConcat(*draw->fMatrix, m); | |
| draw.writable()->fMatrix = &concat; | |
| } | |
| this->drawBitmapCommon(*draw, bitmap, NULL, NULL, paint, SkCanvas::kNone_DrawBitmapRectFlag); | |
| } | |
| // This method outsets 'iRect' by 'outset' all around and then clamps its extents to | |
| // 'clamp'. 'offset' is adjusted to remain positioned over the top-left corner | |
| // of 'iRect' for all possible outsets/clamps. | |
| static inline void clamped_outset_with_offset(SkIRect* iRect, | |
| int outset, | |
| SkPoint* offset, | |
| const SkIRect& clamp) { | |
| iRect->outset(outset, outset); | |
| int leftClampDelta = clamp.fLeft - iRect->fLeft; | |
| if (leftClampDelta > 0) { | |
| offset->fX -= outset - leftClampDelta; | |
| iRect->fLeft = clamp.fLeft; | |
| } else { | |
| offset->fX -= outset; | |
| } | |
| int topClampDelta = clamp.fTop - iRect->fTop; | |
| if (topClampDelta > 0) { | |
| offset->fY -= outset - topClampDelta; | |
| iRect->fTop = clamp.fTop; | |
| } else { | |
| offset->fY -= outset; | |
| } | |
| if (iRect->fRight > clamp.fRight) { | |
| iRect->fRight = clamp.fRight; | |
| } | |
| if (iRect->fBottom > clamp.fBottom) { | |
| iRect->fBottom = clamp.fBottom; | |
| } | |
| } | |
| static bool has_aligned_samples(const SkRect& srcRect, | |
| const SkRect& transformedRect) { | |
| // detect pixel disalignment | |
| if (SkScalarAbs(SkScalarRoundToScalar(transformedRect.left()) - | |
| transformedRect.left()) < COLOR_BLEED_TOLERANCE && | |
| SkScalarAbs(SkScalarRoundToScalar(transformedRect.top()) - | |
| transformedRect.top()) < COLOR_BLEED_TOLERANCE && | |
| SkScalarAbs(transformedRect.width() - srcRect.width()) < | |
| COLOR_BLEED_TOLERANCE && | |
| SkScalarAbs(transformedRect.height() - srcRect.height()) < | |
| COLOR_BLEED_TOLERANCE) { | |
| return true; | |
| } | |
| return false; | |
| } | |
| static bool may_color_bleed(const SkRect& srcRect, | |
| const SkRect& transformedRect, | |
| const SkMatrix& m) { | |
| // Only gets called if has_aligned_samples returned false. | |
| // So we can assume that sampling is axis aligned but not texel aligned. | |
| SkASSERT(!has_aligned_samples(srcRect, transformedRect)); | |
| SkRect innerSrcRect(srcRect), innerTransformedRect, | |
| outerTransformedRect(transformedRect); | |
| innerSrcRect.inset(SK_ScalarHalf, SK_ScalarHalf); | |
| m.mapRect(&innerTransformedRect, innerSrcRect); | |
| // The gap between outerTransformedRect and innerTransformedRect | |
| // represents the projection of the source border area, which is | |
| // problematic for color bleeding. We must check whether any | |
| // destination pixels sample the border area. | |
| outerTransformedRect.inset(COLOR_BLEED_TOLERANCE, COLOR_BLEED_TOLERANCE); | |
| innerTransformedRect.outset(COLOR_BLEED_TOLERANCE, COLOR_BLEED_TOLERANCE); | |
| SkIRect outer, inner; | |
| outerTransformedRect.round(&outer); | |
| innerTransformedRect.round(&inner); | |
| // If the inner and outer rects round to the same result, it means the | |
| // border does not overlap any pixel centers. Yay! | |
| return inner != outer; | |
| } | |
| static bool needs_texture_domain(const SkBitmap& bitmap, | |
| const SkRect& srcRect, | |
| GrTextureParams ¶ms, | |
| const SkMatrix& contextMatrix, | |
| bool bicubic) { | |
| bool needsTextureDomain = false; | |
| if (bicubic || params.filterMode() != GrTextureParams::kNone_FilterMode) { | |
| // Need texture domain if drawing a sub rect | |
| needsTextureDomain = srcRect.width() < bitmap.width() || | |
| srcRect.height() < bitmap.height(); | |
| if (!bicubic && needsTextureDomain && contextMatrix.rectStaysRect()) { | |
| // sampling is axis-aligned | |
| SkRect transformedRect; | |
| contextMatrix.mapRect(&transformedRect, srcRect); | |
| if (has_aligned_samples(srcRect, transformedRect)) { | |
| params.setFilterMode(GrTextureParams::kNone_FilterMode); | |
| needsTextureDomain = false; | |
| } else { | |
| needsTextureDomain = may_color_bleed(srcRect, transformedRect, contextMatrix); | |
| } | |
| } | |
| } | |
| return needsTextureDomain; | |
| } | |
| void SkGpuDevice::drawBitmapCommon(const SkDraw& draw, | |
| const SkBitmap& bitmap, | |
| const SkRect* srcRectPtr, | |
| const SkSize* dstSizePtr, | |
| const SkPaint& paint, | |
| SkCanvas::DrawBitmapRectFlags flags) { | |
| CHECK_SHOULD_DRAW(draw); | |
| SkRect srcRect; | |
| SkSize dstSize; | |
| // If there is no src rect, or the src rect contains the entire bitmap then we're effectively | |
| // in the (easier) bleed case, so update flags. | |
| if (NULL == srcRectPtr) { | |
| SkScalar w = SkIntToScalar(bitmap.width()); | |
| SkScalar h = SkIntToScalar(bitmap.height()); | |
| dstSize.fWidth = w; | |
| dstSize.fHeight = h; | |
| srcRect.set(0, 0, w, h); | |
| flags = (SkCanvas::DrawBitmapRectFlags) (flags | SkCanvas::kBleed_DrawBitmapRectFlag); | |
| } else { | |
| SkASSERT(dstSizePtr); | |
| srcRect = *srcRectPtr; | |
| dstSize = *dstSizePtr; | |
| if (srcRect.fLeft <= 0 && srcRect.fTop <= 0 && | |
| srcRect.fRight >= bitmap.width() && srcRect.fBottom >= bitmap.height()) { | |
| flags = (SkCanvas::DrawBitmapRectFlags) (flags | SkCanvas::kBleed_DrawBitmapRectFlag); | |
| } | |
| } | |
| // If the render target is not msaa and draw is antialiased, we call | |
| // drawRect instead of drawing on the render target directly. | |
| // FIXME: the tiled bitmap code path doesn't currently support | |
| // anti-aliased edges, we work around that for now by drawing directly | |
| // if the image size exceeds maximum texture size. | |
| int maxTextureSize = fContext->getMaxTextureSize(); | |
| bool directDraw = fRenderTarget->isMultisampled() || | |
| !paint.isAntiAlias() || | |
| bitmap.width() > maxTextureSize || | |
| bitmap.height() > maxTextureSize; | |
| // we check whether dst rect are pixel aligned | |
| if (!directDraw) { | |
| bool staysRect = draw.fMatrix->rectStaysRect(); | |
| if (staysRect) { | |
| SkRect rect; | |
| SkRect dstRect = SkRect::MakeXYWH(0, 0, dstSize.fWidth, dstSize.fHeight); | |
| draw.fMatrix->mapRect(&rect, dstRect); | |
| const SkScalar *scalars = rect.asScalars(); | |
| bool isDstPixelAligned = true; | |
| for (int i = 0; i < 4; i++) { | |
| if (!SkScalarIsInt(scalars[i])) { | |
| isDstPixelAligned = false; | |
| break; | |
| } | |
| } | |
| if (isDstPixelAligned) | |
| directDraw = true; | |
| } | |
| } | |
| if (paint.getMaskFilter() || !directDraw) { | |
| // Convert the bitmap to a shader so that the rect can be drawn | |
| // through drawRect, which supports mask filters. | |
| SkBitmap tmp; // subset of bitmap, if necessary | |
| const SkBitmap* bitmapPtr = &bitmap; | |
| SkMatrix localM; | |
| if (srcRectPtr) { | |
| localM.setTranslate(-srcRectPtr->fLeft, -srcRectPtr->fTop); | |
| localM.postScale(dstSize.fWidth / srcRectPtr->width(), | |
| dstSize.fHeight / srcRectPtr->height()); | |
| // In bleed mode we position and trim the bitmap based on the src rect which is | |
| // already accounted for in 'm' and 'srcRect'. In clamp mode we need to chop out | |
| // the desired portion of the bitmap and then update 'm' and 'srcRect' to | |
| // compensate. | |
| if (!(SkCanvas::kBleed_DrawBitmapRectFlag & flags)) { | |
| SkIRect iSrc; | |
| srcRect.roundOut(&iSrc); | |
| SkPoint offset = SkPoint::Make(SkIntToScalar(iSrc.fLeft), | |
| SkIntToScalar(iSrc.fTop)); | |
| if (!bitmap.extractSubset(&tmp, iSrc)) { | |
| return; // extraction failed | |
| } | |
| bitmapPtr = &tmp; | |
| srcRect.offset(-offset.fX, -offset.fY); | |
| // The source rect has changed so update the matrix | |
| localM.preTranslate(offset.fX, offset.fY); | |
| } | |
| } else { | |
| localM.reset(); | |
| } | |
| SkPaint paintWithShader(paint); | |
| paintWithShader.setShader(SkShader::CreateBitmapShader(*bitmapPtr, | |
| SkShader::kClamp_TileMode, SkShader::kClamp_TileMode, &localM))->unref(); | |
| SkRect dstRect = {0, 0, dstSize.fWidth, dstSize.fHeight}; | |
| this->drawRect(draw, dstRect, paintWithShader); | |
| return; | |
| } | |
| // If there is no mask filter than it is OK to handle the src rect -> dst rect scaling using | |
| // the view matrix rather than a local matrix. | |
| SkMatrix m; | |
| m.setScale(dstSize.fWidth / srcRect.width(), | |
| dstSize.fHeight / srcRect.height()); | |
| SkMatrix viewM = *draw.fMatrix; | |
| viewM.preConcat(m); | |
| GrTextureParams params; | |
| SkPaint::FilterLevel paintFilterLevel = paint.getFilterLevel(); | |
| GrTextureParams::FilterMode textureFilterMode; | |
| bool doBicubic = false; | |
| switch(paintFilterLevel) { | |
| case SkPaint::kNone_FilterLevel: | |
| textureFilterMode = GrTextureParams::kNone_FilterMode; | |
| break; | |
| case SkPaint::kLow_FilterLevel: | |
| textureFilterMode = GrTextureParams::kBilerp_FilterMode; | |
| break; | |
| case SkPaint::kMedium_FilterLevel: | |
| if (viewM.getMinScale() < SK_Scalar1) { | |
| textureFilterMode = GrTextureParams::kMipMap_FilterMode; | |
| } else { | |
| // Don't trigger MIP level generation unnecessarily. | |
| textureFilterMode = GrTextureParams::kBilerp_FilterMode; | |
| } | |
| break; | |
| case SkPaint::kHigh_FilterLevel: | |
| // Minification can look bad with the bicubic effect. | |
| doBicubic = | |
| GrBicubicEffect::ShouldUseBicubic(viewM, &textureFilterMode); | |
| break; | |
| default: | |
| SkErrorInternals::SetError( kInvalidPaint_SkError, | |
| "Sorry, I don't understand the filtering " | |
| "mode you asked for. Falling back to " | |
| "MIPMaps."); | |
| textureFilterMode = GrTextureParams::kMipMap_FilterMode; | |
| break; | |
| } | |
| int tileFilterPad; | |
| if (doBicubic) { | |
| tileFilterPad = GrBicubicEffect::kFilterTexelPad; | |
| } else if (GrTextureParams::kNone_FilterMode == textureFilterMode) { | |
| tileFilterPad = 0; | |
| } else { | |
| tileFilterPad = 1; | |
| } | |
| params.setFilterMode(textureFilterMode); | |
| int maxTileSize = fContext->getMaxTextureSize() - 2 * tileFilterPad; | |
| int tileSize; | |
| SkIRect clippedSrcRect; | |
| if (this->shouldTileBitmap(bitmap, viewM, params, srcRectPtr, maxTileSize, &tileSize, | |
| &clippedSrcRect)) { | |
| this->drawTiledBitmap(bitmap, viewM, srcRect, clippedSrcRect, params, paint, flags, | |
| tileSize, doBicubic); | |
| } else { | |
| // take the simple case | |
| bool needsTextureDomain = needs_texture_domain(bitmap, | |
| srcRect, | |
| params, | |
| viewM, | |
| doBicubic); | |
| this->internalDrawBitmap(bitmap, | |
| viewM, | |
| srcRect, | |
| params, | |
| paint, | |
| flags, | |
| doBicubic, | |
| needsTextureDomain); | |
| } | |
| } | |
| // Break 'bitmap' into several tiles to draw it since it has already | |
| // been determined to be too large to fit in VRAM | |
| void SkGpuDevice::drawTiledBitmap(const SkBitmap& bitmap, | |
| const SkMatrix& viewMatrix, | |
| const SkRect& srcRect, | |
| const SkIRect& clippedSrcIRect, | |
| const GrTextureParams& params, | |
| const SkPaint& paint, | |
| SkCanvas::DrawBitmapRectFlags flags, | |
| int tileSize, | |
| bool bicubic) { | |
| // The following pixel lock is technically redundant, but it is desirable | |
| // to lock outside of the tile loop to prevent redecoding the whole image | |
| // at each tile in cases where 'bitmap' holds an SkDiscardablePixelRef that | |
| // is larger than the limit of the discardable memory pool. | |
| SkAutoLockPixels alp(bitmap); | |
| SkRect clippedSrcRect = SkRect::Make(clippedSrcIRect); | |
| int nx = bitmap.width() / tileSize; | |
| int ny = bitmap.height() / tileSize; | |
| for (int x = 0; x <= nx; x++) { | |
| for (int y = 0; y <= ny; y++) { | |
| SkRect tileR; | |
| tileR.set(SkIntToScalar(x * tileSize), | |
| SkIntToScalar(y * tileSize), | |
| SkIntToScalar((x + 1) * tileSize), | |
| SkIntToScalar((y + 1) * tileSize)); | |
| if (!SkRect::Intersects(tileR, clippedSrcRect)) { | |
| continue; | |
| } | |
| if (!tileR.intersect(srcRect)) { | |
| continue; | |
| } | |
| SkBitmap tmpB; | |
| SkIRect iTileR; | |
| tileR.roundOut(&iTileR); | |
| SkPoint offset = SkPoint::Make(SkIntToScalar(iTileR.fLeft), | |
| SkIntToScalar(iTileR.fTop)); | |
| // Adjust the context matrix to draw at the right x,y in device space | |
| SkMatrix viewM = viewMatrix; | |
| SkMatrix tmpM; | |
| tmpM.setTranslate(offset.fX - srcRect.fLeft, offset.fY - srcRect.fTop); | |
| viewM.preConcat(tmpM); | |
| if (GrTextureParams::kNone_FilterMode != params.filterMode() || bicubic) { | |
| SkIRect iClampRect; | |
| if (SkCanvas::kBleed_DrawBitmapRectFlag & flags) { | |
| // In bleed mode we want to always expand the tile on all edges | |
| // but stay within the bitmap bounds | |
| iClampRect = SkIRect::MakeWH(bitmap.width(), bitmap.height()); | |
| } else { | |
| // In texture-domain/clamp mode we only want to expand the | |
| // tile on edges interior to "srcRect" (i.e., we want to | |
| // not bleed across the original clamped edges) | |
| srcRect.roundOut(&iClampRect); | |
| } | |
| int outset = bicubic ? GrBicubicEffect::kFilterTexelPad : 1; | |
| clamped_outset_with_offset(&iTileR, outset, &offset, iClampRect); | |
| } | |
| if (bitmap.extractSubset(&tmpB, iTileR)) { | |
| // now offset it to make it "local" to our tmp bitmap | |
| tileR.offset(-offset.fX, -offset.fY); | |
| GrTextureParams paramsTemp = params; | |
| bool needsTextureDomain = needs_texture_domain(bitmap, | |
| srcRect, | |
| paramsTemp, | |
| viewM, | |
| bicubic); | |
| this->internalDrawBitmap(tmpB, | |
| viewM, | |
| tileR, | |
| paramsTemp, | |
| paint, | |
| flags, | |
| bicubic, | |
| needsTextureDomain); | |
| } | |
| } | |
| } | |
| } | |
| /* | |
| * This is called by drawBitmap(), which has to handle images that may be too | |
| * large to be represented by a single texture. | |
| * | |
| * internalDrawBitmap assumes that the specified bitmap will fit in a texture | |
| * and that non-texture portion of the GrPaint has already been setup. | |
| */ | |
| void SkGpuDevice::internalDrawBitmap(const SkBitmap& bitmap, | |
| const SkMatrix& viewMatrix, | |
| const SkRect& srcRect, | |
| const GrTextureParams& params, | |
| const SkPaint& paint, | |
| SkCanvas::DrawBitmapRectFlags flags, | |
| bool bicubic, | |
| bool needsTextureDomain) { | |
| SkASSERT(bitmap.width() <= fContext->getMaxTextureSize() && | |
| bitmap.height() <= fContext->getMaxTextureSize()); | |
| GrTexture* texture; | |
| AutoBitmapTexture abt(fContext, bitmap, ¶ms, &texture); | |
| if (NULL == texture) { | |
| return; | |
| } | |
| SkRect dstRect = {0, 0, srcRect.width(), srcRect.height() }; | |
| SkRect paintRect; | |
| SkScalar wInv = SkScalarInvert(SkIntToScalar(texture->width())); | |
| SkScalar hInv = SkScalarInvert(SkIntToScalar(texture->height())); | |
| paintRect.setLTRB(SkScalarMul(srcRect.fLeft, wInv), | |
| SkScalarMul(srcRect.fTop, hInv), | |
| SkScalarMul(srcRect.fRight, wInv), | |
| SkScalarMul(srcRect.fBottom, hInv)); | |
| SkRect textureDomain = SkRect::MakeEmpty(); | |
| SkAutoTUnref<GrFragmentProcessor> fp; | |
| if (needsTextureDomain && !(flags & SkCanvas::kBleed_DrawBitmapRectFlag)) { | |
| // Use a constrained texture domain to avoid color bleeding | |
| SkScalar left, top, right, bottom; | |
| if (srcRect.width() > SK_Scalar1) { | |
| SkScalar border = SK_ScalarHalf / texture->width(); | |
| left = paintRect.left() + border; | |
| right = paintRect.right() - border; | |
| } else { | |
| left = right = SkScalarHalf(paintRect.left() + paintRect.right()); | |
| } | |
| if (srcRect.height() > SK_Scalar1) { | |
| SkScalar border = SK_ScalarHalf / texture->height(); | |
| top = paintRect.top() + border; | |
| bottom = paintRect.bottom() - border; | |
| } else { | |
| top = bottom = SkScalarHalf(paintRect.top() + paintRect.bottom()); | |
| } | |
| textureDomain.setLTRB(left, top, right, bottom); | |
| if (bicubic) { | |
| fp.reset(GrBicubicEffect::Create(texture, SkMatrix::I(), textureDomain)); | |
| } else { | |
| fp.reset(GrTextureDomainEffect::Create(texture, | |
| SkMatrix::I(), | |
| textureDomain, | |
| GrTextureDomain::kClamp_Mode, | |
| params.filterMode())); | |
| } | |
| } else if (bicubic) { | |
| SkASSERT(GrTextureParams::kNone_FilterMode == params.filterMode()); | |
| SkShader::TileMode tileModes[2] = { params.getTileModeX(), params.getTileModeY() }; | |
| fp.reset(GrBicubicEffect::Create(texture, SkMatrix::I(), tileModes)); | |
| } else { | |
| fp.reset(GrSimpleTextureEffect::Create(texture, SkMatrix::I(), params)); | |
| } | |
| // Construct a GrPaint by setting the bitmap texture as the first effect and then configuring | |
| // the rest from the SkPaint. | |
| GrPaint grPaint; | |
| grPaint.addColorProcessor(fp); | |
| bool alphaOnly = !(kAlpha_8_SkColorType == bitmap.colorType()); | |
| GrColor paintColor = (alphaOnly) ? SkColor2GrColorJustAlpha(paint.getColor()) : | |
| SkColor2GrColor(paint.getColor()); | |
| SkPaint2GrPaintNoShader(this->context(), paint, paintColor, false, &grPaint); | |
| fContext->drawNonAARectToRect(grPaint, viewMatrix, dstRect, paintRect); | |
| } | |
| bool SkGpuDevice::filterTexture(GrContext* context, GrTexture* texture, | |
| const SkImageFilter* filter, | |
| const SkImageFilter::Context& ctx, | |
| SkBitmap* result, SkIPoint* offset) { | |
| SkASSERT(filter); | |
| // FIXME: plumb actual surface props such that we don't have to lie about the flags here | |
| // (https://code.google.com/p/skia/issues/detail?id=3148). | |
| SkDeviceImageFilterProxy proxy(this, SkSurfaceProps(0, getLeakyProperties().pixelGeometry())); | |
| if (filter->canFilterImageGPU()) { | |
| // Save the render target and set it to NULL, so we don't accidentally draw to it in the | |
| // filter. Also set the clip wide open and the matrix to identity. | |
| GrContext::AutoWideOpenIdentityDraw awo(context, NULL); | |
| return filter->filterImageGPU(&proxy, wrap_texture(texture), ctx, result, offset); | |
| } else { | |
| return false; | |
| } | |
| } | |
| void SkGpuDevice::drawSprite(const SkDraw& draw, const SkBitmap& bitmap, | |
| int left, int top, const SkPaint& paint) { | |
| // drawSprite is defined to be in device coords. | |
| CHECK_SHOULD_DRAW(draw); | |
| SkAutoLockPixels alp(bitmap, !bitmap.getTexture()); | |
| if (!bitmap.getTexture() && !bitmap.readyToDraw()) { | |
| return; | |
| } | |
| int w = bitmap.width(); | |
| int h = bitmap.height(); | |
| GrTexture* texture; | |
| // draw sprite uses the default texture params | |
| AutoBitmapTexture abt(fContext, bitmap, NULL, &texture); | |
| SkImageFilter* filter = paint.getImageFilter(); | |
| // This bitmap will own the filtered result as a texture. | |
| SkBitmap filteredBitmap; | |
| if (filter) { | |
| SkIPoint offset = SkIPoint::Make(0, 0); | |
| SkMatrix matrix(*draw.fMatrix); | |
| matrix.postTranslate(SkIntToScalar(-left), SkIntToScalar(-top)); | |
| SkIRect clipBounds = SkIRect::MakeWH(bitmap.width(), bitmap.height()); | |
| SkAutoTUnref<SkImageFilter::Cache> cache(getImageFilterCache()); | |
| // This cache is transient, and is freed (along with all its contained | |
| // textures) when it goes out of scope. | |
| SkImageFilter::Context ctx(matrix, clipBounds, cache); | |
| if (this->filterTexture(fContext, texture, filter, ctx, &filteredBitmap, | |
| &offset)) { | |
| texture = (GrTexture*) filteredBitmap.getTexture(); | |
| w = filteredBitmap.width(); | |
| h = filteredBitmap.height(); | |
| left += offset.x(); | |
| top += offset.y(); | |
| } else { | |
| return; | |
| } | |
| } | |
| GrPaint grPaint; | |
| grPaint.addColorTextureProcessor(texture, SkMatrix::I()); | |
| SkPaint2GrPaintNoShader(this->context(), paint, SkColor2GrColorJustAlpha(paint.getColor()), | |
| false, &grPaint); | |
| fContext->drawNonAARectToRect(grPaint, | |
| SkMatrix::I(), | |
| SkRect::MakeXYWH(SkIntToScalar(left), | |
| SkIntToScalar(top), | |
| SkIntToScalar(w), | |
| SkIntToScalar(h)), | |
| SkRect::MakeXYWH(0, | |
| 0, | |
| SK_Scalar1 * w / texture->width(), | |
| SK_Scalar1 * h / texture->height())); | |
| } | |
| void SkGpuDevice::drawBitmapRect(const SkDraw& origDraw, const SkBitmap& bitmap, | |
| const SkRect* src, const SkRect& dst, | |
| const SkPaint& paint, | |
| SkCanvas::DrawBitmapRectFlags flags) { | |
| SkMatrix matrix; | |
| SkRect bitmapBounds, tmpSrc; | |
| bitmapBounds.set(0, 0, | |
| SkIntToScalar(bitmap.width()), | |
| SkIntToScalar(bitmap.height())); | |
| // Compute matrix from the two rectangles | |
| if (src) { | |
| tmpSrc = *src; | |
| } else { | |
| tmpSrc = bitmapBounds; | |
| } | |
| matrix.setRectToRect(tmpSrc, dst, SkMatrix::kFill_ScaleToFit); | |
| // clip the tmpSrc to the bounds of the bitmap. No check needed if src==null. | |
| if (src) { | |
| if (!bitmapBounds.contains(tmpSrc)) { | |
| if (!tmpSrc.intersect(bitmapBounds)) { | |
| return; // nothing to draw | |
| } | |
| } | |
| } | |
| SkRect tmpDst; | |
| matrix.mapRect(&tmpDst, tmpSrc); | |
| SkTCopyOnFirstWrite<SkDraw> draw(origDraw); | |
| if (0 != tmpDst.fLeft || 0 != tmpDst.fTop) { | |
| // Translate so that tempDst's top left is at the origin. | |
| matrix = *origDraw.fMatrix; | |
| matrix.preTranslate(tmpDst.fLeft, tmpDst.fTop); | |
| draw.writable()->fMatrix = &matrix; | |
| } | |
| SkSize dstSize; | |
| dstSize.fWidth = tmpDst.width(); | |
| dstSize.fHeight = tmpDst.height(); | |
| this->drawBitmapCommon(*draw, bitmap, &tmpSrc, &dstSize, paint, flags); | |
| } | |
| void SkGpuDevice::drawDevice(const SkDraw& draw, SkBaseDevice* device, | |
| int x, int y, const SkPaint& paint) { | |
| // clear of the source device must occur before CHECK_SHOULD_DRAW | |
| GR_CREATE_TRACE_MARKER_CONTEXT("SkGpuDevice::drawDevice", fContext); | |
| SkGpuDevice* dev = static_cast<SkGpuDevice*>(device); | |
| if (fNeedClear) { | |
| // TODO: could check here whether we really need to draw at all | |
| dev->clearAll(); | |
| } | |
| // drawDevice is defined to be in device coords. | |
| CHECK_SHOULD_DRAW(draw); | |
| GrRenderTarget* devRT = dev->accessRenderTarget(); | |
| GrTexture* devTex; | |
| if (NULL == (devTex = devRT->asTexture())) { | |
| return; | |
| } | |
| const SkImageInfo ii = dev->imageInfo(); | |
| int w = ii.width(); | |
| int h = ii.height(); | |
| SkImageFilter* filter = paint.getImageFilter(); | |
| // This bitmap will own the filtered result as a texture. | |
| SkBitmap filteredBitmap; | |
| if (filter) { | |
| SkIPoint offset = SkIPoint::Make(0, 0); | |
| SkMatrix matrix(*draw.fMatrix); | |
| matrix.postTranslate(SkIntToScalar(-x), SkIntToScalar(-y)); | |
| SkIRect clipBounds = SkIRect::MakeWH(devTex->width(), devTex->height()); | |
| // This cache is transient, and is freed (along with all its contained | |
| // textures) when it goes out of scope. | |
| SkAutoTUnref<SkImageFilter::Cache> cache(getImageFilterCache()); | |
| SkImageFilter::Context ctx(matrix, clipBounds, cache); | |
| if (this->filterTexture(fContext, devTex, filter, ctx, &filteredBitmap, | |
| &offset)) { | |
| devTex = filteredBitmap.getTexture(); | |
| w = filteredBitmap.width(); | |
| h = filteredBitmap.height(); | |
| x += offset.fX; | |
| y += offset.fY; | |
| } else { | |
| return; | |
| } | |
| } | |
| GrPaint grPaint; | |
| grPaint.addColorTextureProcessor(devTex, SkMatrix::I()); | |
| SkPaint2GrPaintNoShader(this->context(), paint, SkColor2GrColorJustAlpha(paint.getColor()), | |
| false, &grPaint); | |
| SkRect dstRect = SkRect::MakeXYWH(SkIntToScalar(x), | |
| SkIntToScalar(y), | |
| SkIntToScalar(w), | |
| SkIntToScalar(h)); | |
| // The device being drawn may not fill up its texture (e.g. saveLayer uses approximate | |
| // scratch texture). | |
| SkRect srcRect = SkRect::MakeWH(SK_Scalar1 * w / devTex->width(), | |
| SK_Scalar1 * h / devTex->height()); | |
| fContext->drawNonAARectToRect(grPaint, SkMatrix::I(), dstRect, srcRect); | |
| } | |
| bool SkGpuDevice::canHandleImageFilter(const SkImageFilter* filter) { | |
| return filter->canFilterImageGPU(); | |
| } | |
| bool SkGpuDevice::filterImage(const SkImageFilter* filter, const SkBitmap& src, | |
| const SkImageFilter::Context& ctx, | |
| SkBitmap* result, SkIPoint* offset) { | |
| // want explicitly our impl, so guard against a subclass of us overriding it | |
| if (!this->SkGpuDevice::canHandleImageFilter(filter)) { | |
| return false; | |
| } | |
| SkAutoLockPixels alp(src, !src.getTexture()); | |
| if (!src.getTexture() && !src.readyToDraw()) { | |
| return false; | |
| } | |
| GrTexture* texture; | |
| // We assume here that the filter will not attempt to tile the src. Otherwise, this cache lookup | |
| // must be pushed upstack. | |
| AutoBitmapTexture abt(fContext, src, NULL, &texture); | |
| return this->filterTexture(fContext, texture, filter, ctx, result, offset); | |
| } | |
| /////////////////////////////////////////////////////////////////////////////// | |
| // must be in SkCanvas::VertexMode order | |
| static const GrPrimitiveType gVertexMode2PrimitiveType[] = { | |
| kTriangles_GrPrimitiveType, | |
| kTriangleStrip_GrPrimitiveType, | |
| kTriangleFan_GrPrimitiveType, | |
| }; | |
| void SkGpuDevice::drawVertices(const SkDraw& draw, SkCanvas::VertexMode vmode, | |
| int vertexCount, const SkPoint vertices[], | |
| const SkPoint texs[], const SkColor colors[], | |
| SkXfermode* xmode, | |
| const uint16_t indices[], int indexCount, | |
| const SkPaint& paint) { | |
| CHECK_SHOULD_DRAW(draw); | |
| GR_CREATE_TRACE_MARKER_CONTEXT("SkGpuDevice::drawVertices", fContext); | |
| const uint16_t* outIndices; | |
| SkAutoTDeleteArray<uint16_t> outAlloc(NULL); | |
| GrPrimitiveType primType; | |
| GrPaint grPaint; | |
| // If both textures and vertex-colors are NULL, strokes hairlines with the paint's color. | |
| if ((NULL == texs || NULL == paint.getShader()) && NULL == colors) { | |
| texs = NULL; | |
| SkPaint copy(paint); | |
| copy.setStyle(SkPaint::kStroke_Style); | |
| copy.setStrokeWidth(0); | |
| // we ignore the shader if texs is null. | |
| SkPaint2GrPaintNoShader(this->context(), copy, SkColor2GrColor(copy.getColor()), | |
| NULL == colors, &grPaint); | |
| primType = kLines_GrPrimitiveType; | |
| int triangleCount = 0; | |
| int n = (NULL == indices) ? vertexCount : indexCount; | |
| switch (vmode) { | |
| case SkCanvas::kTriangles_VertexMode: | |
| triangleCount = n / 3; | |
| break; | |
| case SkCanvas::kTriangleStrip_VertexMode: | |
| case SkCanvas::kTriangleFan_VertexMode: | |
| triangleCount = n - 2; | |
| break; | |
| } | |
| VertState state(vertexCount, indices, indexCount); | |
| VertState::Proc vertProc = state.chooseProc(vmode); | |
| //number of indices for lines per triangle with kLines | |
| indexCount = triangleCount * 6; | |
| outAlloc.reset(SkNEW_ARRAY(uint16_t, indexCount)); | |
| outIndices = outAlloc.get(); | |
| uint16_t* auxIndices = outAlloc.get(); | |
| int i = 0; | |
| while (vertProc(&state)) { | |
| auxIndices[i] = state.f0; | |
| auxIndices[i + 1] = state.f1; | |
| auxIndices[i + 2] = state.f1; | |
| auxIndices[i + 3] = state.f2; | |
| auxIndices[i + 4] = state.f2; | |
| auxIndices[i + 5] = state.f0; | |
| i += 6; | |
| } | |
| } else { | |
| outIndices = indices; | |
| primType = gVertexMode2PrimitiveType[vmode]; | |
| if (NULL == texs || NULL == paint.getShader()) { | |
| SkPaint2GrPaintNoShader(this->context(), paint, SkColor2GrColor(paint.getColor()), | |
| NULL == colors, &grPaint); | |
| } else { | |
| SkPaint2GrPaintShader(this->context(), paint, *draw.fMatrix, NULL == colors, &grPaint); | |
| } | |
| } | |
| #if 0 | |
| if (xmode && texs && colors) { | |
| if (!SkXfermode::IsMode(xmode, SkXfermode::kModulate_Mode)) { | |
| SkDebugf("Unsupported vertex-color/texture xfer mode.\n"); | |
| return; | |
| } | |
| } | |
| #endif | |
| SkAutoSTMalloc<128, GrColor> convertedColors(0); | |
| if (colors) { | |
| // need to convert byte order and from non-PM to PM | |
| convertedColors.reset(vertexCount); | |
| SkColor color; | |
| for (int i = 0; i < vertexCount; ++i) { | |
| color = colors[i]; | |
| if (paint.getAlpha() != 255) { | |
| color = SkColorSetA(color, SkMulDiv255Round(SkColorGetA(color), paint.getAlpha())); | |
| } | |
| convertedColors[i] = SkColor2GrColor(color); | |
| } | |
| colors = convertedColors.get(); | |
| } | |
| fContext->drawVertices(grPaint, | |
| *draw.fMatrix, | |
| primType, | |
| vertexCount, | |
| vertices, | |
| texs, | |
| colors, | |
| outIndices, | |
| indexCount); | |
| } | |
| /////////////////////////////////////////////////////////////////////////////// | |
| void SkGpuDevice::drawText(const SkDraw& draw, const void* text, | |
| size_t byteLength, SkScalar x, SkScalar y, | |
| const SkPaint& paint) { | |
| CHECK_SHOULD_DRAW(draw); | |
| GR_CREATE_TRACE_MARKER_CONTEXT("SkGpuDevice::drawText", fContext); | |
| GrPaint grPaint; | |
| SkPaint2GrPaintShader(this->context(), paint, *draw.fMatrix, true, &grPaint); | |
| SkDEBUGCODE(this->validate();) | |
| if (!fTextContext->drawText(grPaint, paint, *draw.fMatrix, (const char *)text, byteLength, x, | |
| y)) { | |
| // this will just call our drawPath() | |
| draw.drawText_asPaths((const char*)text, byteLength, x, y, paint); | |
| } | |
| } | |
| void SkGpuDevice::drawPosText(const SkDraw& draw, const void* text, size_t byteLength, | |
| const SkScalar pos[], int scalarsPerPos, | |
| const SkPoint& offset, const SkPaint& paint) { | |
| GR_CREATE_TRACE_MARKER_CONTEXT("SkGpuDevice::drawPosText", fContext); | |
| CHECK_SHOULD_DRAW(draw); | |
| GrPaint grPaint; | |
| SkPaint2GrPaintShader(this->context(), paint, *draw.fMatrix, true, &grPaint); | |
| SkDEBUGCODE(this->validate();) | |
| if (!fTextContext->drawPosText(grPaint, paint, *draw.fMatrix, (const char *)text, byteLength, | |
| pos, scalarsPerPos, offset)) { | |
| // this will just call our drawPath() | |
| draw.drawPosText_asPaths((const char*)text, byteLength, pos, scalarsPerPos, offset, paint); | |
| } | |
| } | |
| void SkGpuDevice::drawTextOnPath(const SkDraw& draw, const void* text, | |
| size_t len, const SkPath& path, | |
| const SkMatrix* m, const SkPaint& paint) { | |
| CHECK_SHOULD_DRAW(draw); | |
| SkASSERT(draw.fDevice == this); | |
| draw.drawTextOnPath((const char*)text, len, path, m, paint); | |
| } | |
| /////////////////////////////////////////////////////////////////////////////// | |
| bool SkGpuDevice::onShouldDisableLCD(const SkPaint& paint) const { | |
| if (paint.getShader() || | |
| !SkXfermode::IsMode(paint.getXfermode(), SkXfermode::kSrcOver_Mode) || | |
| paint.getMaskFilter() || | |
| paint.getRasterizer() || | |
| paint.getColorFilter() || | |
| paint.getPathEffect() || | |
| paint.isFakeBoldText() || | |
| paint.getStyle() != SkPaint::kFill_Style) | |
| { | |
| return true; | |
| } | |
| return false; | |
| } | |
| void SkGpuDevice::flush() { | |
| DO_DEFERRED_CLEAR(); | |
| fRenderTarget->prepareForExternalRead(); | |
| } | |
| /////////////////////////////////////////////////////////////////////////////// | |
| SkBaseDevice* SkGpuDevice::onCreateCompatibleDevice(const CreateInfo& cinfo) { | |
| GrSurfaceDesc desc; | |
| desc.fConfig = fRenderTarget->config(); | |
| desc.fFlags = kRenderTarget_GrSurfaceFlag; | |
| desc.fWidth = cinfo.fInfo.width(); | |
| desc.fHeight = cinfo.fInfo.height(); | |
| desc.fSampleCnt = fRenderTarget->numSamples(); | |
| SkAutoTUnref<GrTexture> texture; | |
| // Skia's convention is to only clear a device if it is non-opaque. | |
| unsigned flags = cinfo.fInfo.isOpaque() ? 0 : kNeedClear_Flag; | |
| // layers are never draw in repeat modes, so we can request an approx | |
| // match and ignore any padding. | |
| const GrContext::ScratchTexMatch match = (kSaveLayer_Usage == cinfo.fUsage) ? | |
| GrContext::kApprox_ScratchTexMatch : | |
| GrContext::kExact_ScratchTexMatch; | |
| texture.reset(fContext->refScratchTexture(desc, match)); | |
| if (texture) { | |
| SkSurfaceProps props(fSurfaceProps.flags(), cinfo.fPixelGeometry); | |
| return SkGpuDevice::Create(texture->asRenderTarget(), &props, flags); | |
| } else { | |
| SkDebugf("---- failed to create compatible device texture [%d %d]\n", | |
| cinfo.fInfo.width(), cinfo.fInfo.height()); | |
| return NULL; | |
| } | |
| } | |
| SkSurface* SkGpuDevice::newSurface(const SkImageInfo& info, const SkSurfaceProps& props) { | |
| // TODO: Change the signature of newSurface to take a budgeted parameter. | |
| static const SkSurface::Budgeted kBudgeted = SkSurface::kNo_Budgeted; | |
| return SkSurface::NewRenderTarget(fContext, kBudgeted, info, fRenderTarget->numSamples(), | |
| &props); | |
| } | |
| bool SkGpuDevice::EXPERIMENTAL_drawPicture(SkCanvas* mainCanvas, const SkPicture* mainPicture, | |
| const SkMatrix* matrix, const SkPaint* paint) { | |
| #ifndef SK_IGNORE_GPU_LAYER_HOISTING | |
| // todo: should handle this natively | |
| if (paint) { | |
| return false; | |
| } | |
| SkPicture::AccelData::Key key = SkLayerInfo::ComputeKey(); | |
| const SkPicture::AccelData* data = mainPicture->EXPERIMENTAL_getAccelData(key); | |
| if (!data) { | |
| return false; | |
| } | |
| SkRect clipBounds; | |
| if (!mainCanvas->getClipBounds(&clipBounds)) { | |
| return true; | |
| } | |
| SkAutoCanvasMatrixPaint acmp(mainCanvas, matrix, paint, mainPicture->cullRect()); | |
| const SkMatrix initialMatrix = mainCanvas->getTotalMatrix(); | |
| SkTDArray<GrHoistedLayer> atlasedNeedRendering, atlasedRecycled; | |
| GrLayerHoister::FindLayersToAtlas(fContext, mainPicture, | |
| initialMatrix, | |
| clipBounds, | |
| &atlasedNeedRendering, &atlasedRecycled, | |
| fRenderTarget->numSamples()); | |
| GrLayerHoister::DrawLayersToAtlas(fContext, atlasedNeedRendering); | |
| SkTDArray<GrHoistedLayer> needRendering, recycled; | |
| GrLayerHoister::FindLayersToHoist(fContext, mainPicture, | |
| initialMatrix, | |
| clipBounds, | |
| &needRendering, &recycled, | |
| fRenderTarget->numSamples()); | |
| GrLayerHoister::DrawLayers(fContext, needRendering); | |
| // Render the entire picture using new layers | |
| GrRecordReplaceDraw(mainPicture, mainCanvas, fContext->getLayerCache(), | |
| initialMatrix, NULL); | |
| GrLayerHoister::UnlockLayers(fContext, needRendering); | |
| GrLayerHoister::UnlockLayers(fContext, recycled); | |
| GrLayerHoister::UnlockLayers(fContext, atlasedNeedRendering); | |
| GrLayerHoister::UnlockLayers(fContext, atlasedRecycled); | |
| return true; | |
| #else | |
| return false; | |
| #endif | |
| } | |
| SkImageFilter::Cache* SkGpuDevice::getImageFilterCache() { | |
| // We always return a transient cache, so it is freed after each | |
| // filter traversal. | |
| return SkImageFilter::Cache::Create(kDefaultImageFilterCacheSize); | |
| } | |
| #endif |