| /* |
| * Copyright 2015 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "src/gpu/v1/Device_v1.h" |
| |
| #include "include/gpu/GrDirectContext.h" |
| #include "include/gpu/GrRecordingContext.h" |
| #include "include/private/SkTPin.h" |
| #include "src/core/SkDraw.h" |
| #include "src/core/SkImagePriv.h" |
| #include "src/core/SkMaskFilterBase.h" |
| #include "src/core/SkSpecialImage.h" |
| #include "src/gpu/GrBlurUtils.h" |
| #include "src/gpu/GrCaps.h" |
| #include "src/gpu/GrColorSpaceXform.h" |
| #include "src/gpu/GrOpsTypes.h" |
| #include "src/gpu/GrRecordingContextPriv.h" |
| #include "src/gpu/GrStyle.h" |
| #include "src/gpu/SkGr.h" |
| #include "src/gpu/effects/GrBicubicEffect.h" |
| #include "src/gpu/effects/GrBlendFragmentProcessor.h" |
| #include "src/gpu/effects/GrTextureEffect.h" |
| #include "src/gpu/geometry/GrRect.h" |
| #include "src/gpu/geometry/GrStyledShape.h" |
| #include "src/gpu/v1/SurfaceDrawContext_v1.h" |
| #include "src/image/SkImage_Base.h" |
| #include "src/image/SkImage_Gpu.h" |
| |
| namespace { |
| |
| inline bool use_shader(bool textureIsAlphaOnly, const SkPaint& paint) { |
| return textureIsAlphaOnly && paint.getShader(); |
| } |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| // Helper functions for dropping src rect subset with GrSamplerState::Filter::kLinear. |
| |
| static const SkScalar kColorBleedTolerance = 0.001f; |
| |
| bool has_aligned_samples(const SkRect& srcRect, const SkRect& transformedRect) { |
| // detect pixel disalignment |
| if (SkScalarAbs(SkScalarRoundToScalar(transformedRect.left()) - transformedRect.left()) < kColorBleedTolerance && |
| SkScalarAbs(SkScalarRoundToScalar(transformedRect.top()) - transformedRect.top()) < kColorBleedTolerance && |
| SkScalarAbs(transformedRect.width() - srcRect.width()) < kColorBleedTolerance && |
| SkScalarAbs(transformedRect.height() - srcRect.height()) < kColorBleedTolerance) { |
| return true; |
| } |
| return false; |
| } |
| |
| bool may_color_bleed(const SkRect& srcRect, |
| const SkRect& transformedRect, |
| const SkMatrix& m, |
| int numSamples) { |
| // 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); |
| if (numSamples > 1) { |
| innerSrcRect.inset(SK_Scalar1, SK_Scalar1); |
| } else { |
| 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(kColorBleedTolerance, kColorBleedTolerance); |
| innerTransformedRect.outset(kColorBleedTolerance, kColorBleedTolerance); |
| 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; |
| } |
| |
| bool can_ignore_linear_filtering_subset(const SkRect& srcSubset, |
| const SkMatrix& srcRectToDeviceSpace, |
| int numSamples) { |
| if (srcRectToDeviceSpace.rectStaysRect()) { |
| // sampling is axis-aligned |
| SkRect transformedRect; |
| srcRectToDeviceSpace.mapRect(&transformedRect, srcSubset); |
| |
| if (has_aligned_samples(srcSubset, transformedRect) || |
| !may_color_bleed(srcSubset, transformedRect, srcRectToDeviceSpace, numSamples)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| // Helper functions for tiling a large SkBitmap |
| |
| static const int kBmpSmallTileSize = 1 << 10; |
| |
| 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; |
| } |
| |
| int determine_tile_size(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. |
| SkIRect determine_clipped_src_rect(int width, int height, |
| const GrClip* clip, |
| const SkMatrix& viewMatrix, |
| const SkMatrix& srcToDstRect, |
| const SkISize& imageDimensions, |
| const SkRect* srcRectPtr) { |
| SkIRect clippedSrcIRect = clip ? clip->getConservativeBounds() |
| : SkIRect::MakeWH(width, height); |
| SkMatrix inv = SkMatrix::Concat(viewMatrix, srcToDstRect); |
| if (!inv.invert(&inv)) { |
| return SkIRect::MakeEmpty(); |
| } |
| SkRect clippedSrcRect = SkRect::Make(clippedSrcIRect); |
| inv.mapRect(&clippedSrcRect); |
| if (srcRectPtr) { |
| if (!clippedSrcRect.intersect(*srcRectPtr)) { |
| return SkIRect::MakeEmpty(); |
| } |
| } |
| clippedSrcRect.roundOut(&clippedSrcIRect); |
| SkIRect bmpBounds = SkIRect::MakeSize(imageDimensions); |
| if (!clippedSrcIRect.intersect(bmpBounds)) { |
| return SkIRect::MakeEmpty(); |
| } |
| |
| return clippedSrcIRect; |
| } |
| |
| // tileSize and clippedSubset are valid if true is returned |
| bool should_tile_image_id(GrRecordingContext* context, |
| SkISize rtSize, |
| const GrClip* clip, |
| uint32_t imageID, |
| const SkISize& imageSize, |
| const SkMatrix& ctm, |
| const SkMatrix& srcToDst, |
| const SkRect* src, |
| int maxTileSize, |
| int* tileSize, |
| SkIRect* clippedSubset) { |
| // if it's larger than the max tile size, then we have no choice but tiling. |
| if (imageSize.width() > maxTileSize || imageSize.height() > maxTileSize) { |
| *clippedSubset = determine_clipped_src_rect(rtSize.width(), rtSize.height(), clip, ctm, |
| srcToDst, imageSize, src); |
| *tileSize = determine_tile_size(*clippedSubset, maxTileSize); |
| return true; |
| } |
| |
| // If the image would only produce 4 tiles of the smaller size, don't bother tiling it. |
| const size_t area = imageSize.width() * imageSize.height(); |
| if (area < 4 * kBmpSmallTileSize * kBmpSmallTileSize) { |
| 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. |
| // NOTE: if the context is not a direct context, it doesn't have access to the resource cache, |
| // and theoretically, the resource cache's limits could be being changed on another thread, so |
| // even having access to just the limit wouldn't be a reliable test during recording here. |
| // Instead, we will just upload the entire image to be on the safe side and not tile. |
| auto direct = context->asDirectContext(); |
| if (!direct) { |
| return false; |
| } |
| |
| // assumption here is that sw bitmap size is a good proxy for its size as |
| // a texture |
| size_t bmpSize = area * sizeof(SkPMColor); // assume 32bit pixels |
| size_t cacheSize = direct->getResourceCacheLimit(); |
| if (bmpSize < cacheSize / 2) { |
| return false; |
| } |
| |
| // Figure out how much of the src we will need based on the src rect and clipping. Reject if |
| // tiling memory savings would be < 50%. |
| *clippedSubset = determine_clipped_src_rect(rtSize.width(), rtSize.height(), clip, ctm, |
| srcToDst, imageSize, src); |
| *tileSize = kBmpSmallTileSize; // already know whole bitmap fits in one max sized tile. |
| size_t usedTileBytes = get_tile_count(*clippedSubset, kBmpSmallTileSize) * |
| kBmpSmallTileSize * kBmpSmallTileSize * |
| sizeof(SkPMColor); // assume 32bit pixels; |
| |
| return usedTileBytes * 2 < bmpSize; |
| } |
| |
| // 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. |
| 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; |
| } |
| } |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| // Helper functions for drawing an image with v1::SurfaceDrawContext |
| |
| enum class ImageDrawMode { |
| // Src and dst have been restricted to the image content. May need to clamp, no need to decal. |
| kOptimized, |
| // Src and dst are their original sizes, requires use of a decal instead of plain clamping. |
| // This is used when a dst clip is provided and extends outside of the optimized dst rect. |
| kDecal, |
| // Src or dst are empty, or do not intersect the image content so don't draw anything. |
| kSkip |
| }; |
| |
| /** |
| * Optimize the src rect sampling area within an image (sized 'width' x 'height') such that |
| * 'outSrcRect' will be completely contained in the image's bounds. The corresponding rect |
| * to draw will be output to 'outDstRect'. The mapping between src and dst will be cached in |
| * 'srcToDst'. Outputs are not always updated when kSkip is returned. |
| * |
| * If 'origSrcRect' is null, implicitly use the image bounds. If 'origDstRect' is null, use the |
| * original src rect. 'dstClip' should be null when there is no additional clipping. |
| */ |
| ImageDrawMode optimize_sample_area(const SkISize& image, const SkRect* origSrcRect, |
| const SkRect* origDstRect, const SkPoint dstClip[4], |
| SkRect* outSrcRect, SkRect* outDstRect, |
| SkMatrix* srcToDst) { |
| SkRect srcBounds = SkRect::MakeIWH(image.fWidth, image.fHeight); |
| |
| SkRect src = origSrcRect ? *origSrcRect : srcBounds; |
| SkRect dst = origDstRect ? *origDstRect : src; |
| |
| if (src.isEmpty() || dst.isEmpty()) { |
| return ImageDrawMode::kSkip; |
| } |
| |
| if (outDstRect) { |
| *srcToDst = SkMatrix::RectToRect(src, dst); |
| } else { |
| srcToDst->setIdentity(); |
| } |
| |
| if (origSrcRect && !srcBounds.contains(src)) { |
| if (!src.intersect(srcBounds)) { |
| return ImageDrawMode::kSkip; |
| } |
| srcToDst->mapRect(&dst, src); |
| |
| // Both src and dst have gotten smaller. If dstClip is provided, confirm it is still |
| // contained in dst, otherwise cannot optimize the sample area and must use a decal instead |
| if (dstClip) { |
| for (int i = 0; i < 4; ++i) { |
| if (!dst.contains(dstClip[i].fX, dstClip[i].fY)) { |
| // Must resort to using a decal mode restricted to the clipped 'src', and |
| // use the original dst rect (filling in src bounds as needed) |
| *outSrcRect = src; |
| *outDstRect = (origDstRect ? *origDstRect |
| : (origSrcRect ? *origSrcRect : srcBounds)); |
| return ImageDrawMode::kDecal; |
| } |
| } |
| } |
| } |
| |
| // The original src and dst were fully contained in the image, or there was no dst clip to |
| // worry about, or the clip was still contained in the restricted dst rect. |
| *outSrcRect = src; |
| *outDstRect = dst; |
| return ImageDrawMode::kOptimized; |
| } |
| |
| /** |
| * Checks whether the paint is compatible with using SurfaceDrawContext::drawTexture. It is more |
| * efficient than the SkImage general case. |
| */ |
| bool can_use_draw_texture(const SkPaint& paint, bool useCubicResampler, SkMipmapMode mm) { |
| return (!paint.getColorFilter() && !paint.getShader() && !paint.getMaskFilter() && |
| !paint.getImageFilter() && !paint.getBlender() && !paint.isDither() && |
| !useCubicResampler && mm == SkMipmapMode::kNone); |
| } |
| |
| SkPMColor4f texture_color(SkColor4f paintColor, float entryAlpha, GrColorType srcColorType, |
| const GrColorInfo& dstColorInfo) { |
| paintColor.fA *= entryAlpha; |
| if (GrColorTypeIsAlphaOnly(srcColorType)) { |
| return SkColor4fPrepForDst(paintColor, dstColorInfo).premul(); |
| } else { |
| float paintAlpha = SkTPin(paintColor.fA, 0.f, 1.f); |
| return { paintAlpha, paintAlpha, paintAlpha, paintAlpha }; |
| } |
| } |
| |
| // Assumes srcRect and dstRect have already been optimized to fit the proxy |
| void draw_texture(skgpu::v1::SurfaceDrawContext* sdc, |
| const GrClip* clip, |
| const SkMatrix& ctm, |
| const SkPaint& paint, |
| GrSamplerState::Filter filter, |
| const SkRect& srcRect, |
| const SkRect& dstRect, |
| const SkPoint dstClip[4], |
| GrAA aa, |
| GrQuadAAFlags aaFlags, |
| SkCanvas::SrcRectConstraint constraint, |
| GrSurfaceProxyView view, |
| const GrColorInfo& srcColorInfo) { |
| if (GrColorTypeIsAlphaOnly(srcColorInfo.colorType())) { |
| view.concatSwizzle(skgpu::Swizzle("aaaa")); |
| } |
| const GrColorInfo& dstInfo = sdc->colorInfo(); |
| auto textureXform = GrColorSpaceXform::Make(srcColorInfo, sdc->colorInfo()); |
| GrSurfaceProxy* proxy = view.proxy(); |
| // Must specify the strict constraint when the proxy is not functionally exact and the src |
| // rect would access pixels outside the proxy's content area without the constraint. |
| if (constraint != SkCanvas::kStrict_SrcRectConstraint && !proxy->isFunctionallyExact()) { |
| // Conservative estimate of how much a coord could be outset from src rect: |
| // 1/2 pixel for AA and 1/2 pixel for linear filtering |
| float buffer = 0.5f * (aa == GrAA::kYes) + |
| 0.5f * (filter == GrSamplerState::Filter::kLinear); |
| SkRect safeBounds = proxy->getBoundsRect(); |
| safeBounds.inset(buffer, buffer); |
| if (!safeBounds.contains(srcRect)) { |
| constraint = SkCanvas::kStrict_SrcRectConstraint; |
| } |
| } |
| |
| SkPMColor4f color = texture_color(paint.getColor4f(), 1.f, srcColorInfo.colorType(), dstInfo); |
| if (dstClip) { |
| // Get source coords corresponding to dstClip |
| SkPoint srcQuad[4]; |
| GrMapRectPoints(dstRect, srcRect, dstClip, srcQuad, 4); |
| |
| sdc->drawTextureQuad(clip, |
| std::move(view), |
| srcColorInfo.colorType(), |
| srcColorInfo.alphaType(), |
| filter, |
| GrSamplerState::MipmapMode::kNone, |
| paint.getBlendMode_or(SkBlendMode::kSrcOver), |
| color, |
| srcQuad, |
| dstClip, |
| aa, |
| aaFlags, |
| constraint == SkCanvas::kStrict_SrcRectConstraint ? &srcRect : nullptr, |
| ctm, |
| std::move(textureXform)); |
| } else { |
| sdc->drawTexture(clip, |
| std::move(view), |
| srcColorInfo.alphaType(), |
| filter, |
| GrSamplerState::MipmapMode::kNone, |
| paint.getBlendMode_or(SkBlendMode::kSrcOver), |
| color, |
| srcRect, |
| dstRect, |
| aa, |
| aaFlags, |
| constraint, |
| ctm, |
| std::move(textureXform)); |
| } |
| } |
| |
| // Assumes srcRect and dstRect have already been optimized to fit the proxy. |
| void draw_image(GrRecordingContext* rContext, |
| skgpu::v1::SurfaceDrawContext* sdc, |
| const GrClip* clip, |
| const SkMatrixProvider& matrixProvider, |
| const SkPaint& paint, |
| const SkImage_Base& image, |
| const SkRect& src, |
| const SkRect& dst, |
| const SkPoint dstClip[4], |
| const SkMatrix& srcToDst, |
| GrAA aa, |
| GrQuadAAFlags aaFlags, |
| SkCanvas::SrcRectConstraint constraint, |
| SkSamplingOptions sampling, |
| SkTileMode tm = SkTileMode::kClamp) { |
| const SkMatrix& ctm(matrixProvider.localToDevice()); |
| if (tm == SkTileMode::kClamp && |
| !image.isYUVA() && |
| can_use_draw_texture(paint, sampling.useCubic, sampling.mipmap)) { |
| // We've done enough checks above to allow us to pass ClampNearest() and not check for |
| // scaling adjustments. |
| auto [view, ct] = image.asView(rContext, GrMipmapped::kNo); |
| if (!view) { |
| return; |
| } |
| GrColorInfo info(image.imageInfo().colorInfo()); |
| info = info.makeColorType(ct); |
| draw_texture(sdc, |
| clip, |
| ctm, |
| paint, |
| sampling.filter, |
| src, |
| dst, |
| dstClip, |
| aa, |
| aaFlags, |
| constraint, |
| std::move(view), |
| info); |
| return; |
| } |
| |
| const SkMaskFilter* mf = paint.getMaskFilter(); |
| |
| // The shader expects proper local coords, so we can't replace local coords with texture coords |
| // if the shader will be used. If we have a mask filter we will change the underlying geometry |
| // that is rendered. |
| bool canUseTextureCoordsAsLocalCoords = !use_shader(image.isAlphaOnly(), paint) && !mf; |
| |
| // Specifying the texture coords as local coordinates is an attempt to enable more GrDrawOp |
| // combining by not baking anything about the srcRect, dstRect, or ctm, into the texture |
| // FP. In the future this should be an opaque optimization enabled by the combination of |
| // GrDrawOp/GP and FP. |
| if (mf && as_MFB(mf)->hasFragmentProcessor()) { |
| mf = nullptr; |
| } |
| |
| bool restrictToSubset = SkCanvas::kStrict_SrcRectConstraint == constraint; |
| |
| // If we have to outset for AA then we will generate texture coords outside the src rect. The |
| // same happens for any mask filter that extends the bounds rendered in the dst. |
| // This is conservative as a mask filter does not have to expand the bounds rendered. |
| bool coordsAllInsideSrcRect = aaFlags == GrQuadAAFlags::kNone && !mf; |
| |
| // Check for optimization to drop the src rect constraint when using linear filtering. |
| // TODO: Just rely on image to handle this. |
| if (!sampling.useCubic && |
| sampling.filter == SkFilterMode::kLinear && |
| restrictToSubset && |
| sampling.mipmap == SkMipmapMode::kNone && |
| coordsAllInsideSrcRect && |
| !image.isYUVA()) { |
| SkMatrix combinedMatrix; |
| combinedMatrix.setConcat(ctm, srcToDst); |
| if (can_ignore_linear_filtering_subset(src, combinedMatrix, sdc->numSamples())) { |
| restrictToSubset = false; |
| } |
| } |
| |
| SkMatrix textureMatrix; |
| if (canUseTextureCoordsAsLocalCoords) { |
| textureMatrix = SkMatrix::I(); |
| } else { |
| if (!srcToDst.invert(&textureMatrix)) { |
| return; |
| } |
| } |
| const SkRect* subset = restrictToSubset ? &src : nullptr; |
| const SkRect* domain = coordsAllInsideSrcRect ? &src : nullptr; |
| SkTileMode tileModes[] = {tm, tm}; |
| std::unique_ptr<GrFragmentProcessor> fp = image.asFragmentProcessor(rContext, |
| sampling, |
| tileModes, |
| textureMatrix, |
| subset, |
| domain); |
| fp = GrColorSpaceXformEffect::Make(std::move(fp), |
| image.imageInfo().colorInfo(), |
| sdc->colorInfo()); |
| if (image.isAlphaOnly()) { |
| if (const auto* shader = as_SB(paint.getShader())) { |
| auto shaderFP = shader->asFragmentProcessor( |
| GrFPArgs(rContext, matrixProvider, &sdc->colorInfo())); |
| if (!shaderFP) { |
| return; |
| } |
| fp = GrBlendFragmentProcessor::Make( |
| std::move(fp), std::move(shaderFP), SkBlendMode::kDstIn); |
| } else { |
| // Multiply the input (paint) color by the texture (alpha) |
| fp = GrFragmentProcessor::MulInputByChildAlpha(std::move(fp)); |
| } |
| } |
| |
| GrPaint grPaint; |
| if (!SkPaintToGrPaintReplaceShader( |
| rContext, sdc->colorInfo(), paint, matrixProvider, std::move(fp), &grPaint)) { |
| return; |
| } |
| |
| if (!mf) { |
| // Can draw the image directly (any mask filter on the paint was converted to an FP already) |
| if (dstClip) { |
| SkPoint srcClipPoints[4]; |
| SkPoint* srcClip = nullptr; |
| if (canUseTextureCoordsAsLocalCoords) { |
| // Calculate texture coordinates that match the dst clip |
| GrMapRectPoints(dst, src, dstClip, srcClipPoints, 4); |
| srcClip = srcClipPoints; |
| } |
| sdc->fillQuadWithEdgeAA(clip, std::move(grPaint), aa, aaFlags, ctm, dstClip, srcClip); |
| } else { |
| // Provide explicit texture coords when possible, otherwise rely on texture matrix |
| sdc->fillRectWithEdgeAA(clip, std::move(grPaint), aa, aaFlags, ctm, dst, |
| canUseTextureCoordsAsLocalCoords ? &src : nullptr); |
| } |
| } else { |
| // Must draw the mask filter as a GrStyledShape. For now, this loses the per-edge AA |
| // information since it always draws with AA, but that should not be noticeable since the |
| // mask filter is probably a blur. |
| GrStyledShape shape; |
| if (dstClip) { |
| // Represent it as an SkPath formed from the dstClip |
| SkPath path; |
| path.addPoly(dstClip, 4, true); |
| shape = GrStyledShape(path); |
| } else { |
| shape = GrStyledShape(dst); |
| } |
| |
| GrBlurUtils::drawShapeWithMaskFilter( |
| rContext, sdc, clip, shape, std::move(grPaint), ctm, mf); |
| } |
| } |
| |
| void draw_tiled_bitmap(GrRecordingContext* rContext, |
| skgpu::v1::SurfaceDrawContext* sdc, |
| const GrClip* clip, |
| const SkBitmap& bitmap, |
| int tileSize, |
| const SkMatrixProvider& matrixProvider, |
| const SkMatrix& srcToDst, |
| const SkRect& srcRect, |
| const SkIRect& clippedSrcIRect, |
| const SkPaint& paint, |
| GrAA aa, |
| SkCanvas::SrcRectConstraint constraint, |
| SkSamplingOptions sampling, |
| SkTileMode tileMode) { |
| 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.setLTRB(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; |
| } |
| |
| SkIRect iTileR; |
| tileR.roundOut(&iTileR); |
| SkVector offset = SkPoint::Make(SkIntToScalar(iTileR.fLeft), |
| SkIntToScalar(iTileR.fTop)); |
| SkRect rectToDraw = tileR; |
| srcToDst.mapRect(&rectToDraw); |
| if (sampling.filter != SkFilterMode::kNearest || sampling.useCubic) { |
| SkIRect iClampRect; |
| |
| if (SkCanvas::kFast_SrcRectConstraint == constraint) { |
| // 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 = sampling.useCubic ? GrBicubicEffect::kFilterTexelPad : 1; |
| clamped_outset_with_offset(&iTileR, outset, &offset, iClampRect); |
| } |
| |
| // We must subset as a bitmap and then turn into an SkImage if we want caching to work. |
| // Image subsets always make a copy of the pixels and lose the association with the |
| // original's SkPixelRef. |
| if (SkBitmap subsetBmp; bitmap.extractSubset(&subsetBmp, iTileR)) { |
| auto image = SkMakeImageFromRasterBitmap(subsetBmp, kNever_SkCopyPixelsMode); |
| // We should have already handled bitmaps larger than the max texture size. |
| SkASSERT(image->width() <= rContext->priv().caps()->maxTextureSize() && |
| image->height() <= rContext->priv().caps()->maxTextureSize()); |
| |
| GrQuadAAFlags aaFlags = GrQuadAAFlags::kNone; |
| if (aa == GrAA::kYes) { |
| // If the entire bitmap was anti-aliased, turn on AA for the outside tile edges. |
| if (tileR.fLeft <= srcRect.fLeft) { |
| aaFlags |= GrQuadAAFlags::kLeft; |
| } |
| if (tileR.fRight >= srcRect.fRight) { |
| aaFlags |= GrQuadAAFlags::kRight; |
| } |
| if (tileR.fTop <= srcRect.fTop) { |
| aaFlags |= GrQuadAAFlags::kTop; |
| } |
| if (tileR.fBottom >= srcRect.fBottom) { |
| aaFlags |= GrQuadAAFlags::kBottom; |
| } |
| } |
| |
| // now offset it to make it "local" to our tmp bitmap |
| tileR.offset(-offset.fX, -offset.fY); |
| SkMatrix offsetSrcToDst = srcToDst; |
| offsetSrcToDst.preTranslate(offset.fX, offset.fY); |
| draw_image(rContext, |
| sdc, |
| clip, |
| matrixProvider, |
| paint, |
| *as_IB(image.get()), |
| tileR, |
| rectToDraw, |
| nullptr, |
| offsetSrcToDst, |
| aa, |
| aaFlags, |
| constraint, |
| sampling, |
| tileMode); |
| } |
| } |
| } |
| } |
| |
| SkFilterMode downgrade_to_filter(const SkSamplingOptions& sampling) { |
| SkFilterMode filter = sampling.filter; |
| if (sampling.useCubic || sampling.mipmap != SkMipmapMode::kNone) { |
| // if we were "fancier" than just bilerp, only do bilerp |
| filter = SkFilterMode::kLinear; |
| } |
| return filter; |
| } |
| |
| bool can_disable_mipmap(const SkMatrix& viewM, |
| const SkMatrix& localM, |
| bool sharpenMipmappedTextures) { |
| SkMatrix matrix; |
| matrix.setConcat(viewM, localM); |
| // With sharp mips, we bias lookups by -0.5. That means our final LOD is >= 0 until |
| // the computed LOD is >= 0.5. At what scale factor does a texture get an LOD of |
| // 0.5? |
| // |
| // Want: 0 = log2(1/s) - 0.5 |
| // 0.5 = log2(1/s) |
| // 2^0.5 = 1/s |
| // 1/2^0.5 = s |
| // 2^0.5/2 = s |
| SkScalar mipScale = sharpenMipmappedTextures ? SK_ScalarRoot2Over2 : SK_Scalar1; |
| return matrix.getMinScale() >= mipScale; |
| } |
| |
| } // anonymous namespace |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| namespace skgpu::v1 { |
| |
| void Device::drawSpecial(SkSpecialImage* special, |
| const SkMatrix& localToDevice, |
| const SkSamplingOptions& origSampling, |
| const SkPaint& paint) { |
| SkASSERT(!paint.getMaskFilter() && !paint.getImageFilter()); |
| SkASSERT(special->isTextureBacked()); |
| |
| SkRect src = SkRect::Make(special->subset()); |
| SkRect dst = SkRect::MakeWH(special->width(), special->height()); |
| SkMatrix srcToDst = SkMatrix::RectToRect(src, dst); |
| |
| SkSamplingOptions sampling = SkSamplingOptions(downgrade_to_filter(origSampling)); |
| GrAA aa = fSurfaceDrawContext->chooseAA(paint); |
| GrQuadAAFlags aaFlags = (aa == GrAA::kYes) ? GrQuadAAFlags::kAll : GrQuadAAFlags::kNone; |
| |
| SkColorInfo colorInfo(special->colorType(), |
| special->alphaType(), |
| sk_ref_sp(special->getColorSpace())); |
| |
| GrSurfaceProxyView view = special->view(this->recordingContext()); |
| SkImage_Gpu image(sk_ref_sp(special->getContext()), |
| special->uniqueID(), |
| std::move(view), |
| std::move(colorInfo)); |
| // In most cases this ought to hit draw_texture since there won't be a color filter, |
| // alpha-only texture+shader, or a high filter quality. |
| SkOverrideDeviceMatrixProvider matrixProvider(localToDevice); |
| draw_image(fContext.get(), |
| fSurfaceDrawContext.get(), |
| this->clip(), |
| matrixProvider, |
| paint, |
| image, |
| src, |
| dst, |
| nullptr, |
| srcToDst, |
| aa, |
| aaFlags, |
| SkCanvas::kStrict_SrcRectConstraint, |
| sampling); |
| } |
| |
| void Device::drawImageQuad(const SkImage* image, |
| const SkRect* srcRect, |
| const SkRect* dstRect, |
| const SkPoint dstClip[4], |
| GrAA aa, |
| GrQuadAAFlags aaFlags, |
| const SkMatrix* preViewMatrix, |
| const SkSamplingOptions& origSampling, |
| const SkPaint& paint, |
| SkCanvas::SrcRectConstraint constraint) { |
| SkRect src; |
| SkRect dst; |
| SkMatrix srcToDst; |
| ImageDrawMode mode = optimize_sample_area(SkISize::Make(image->width(), image->height()), |
| srcRect, dstRect, dstClip, &src, &dst, &srcToDst); |
| if (mode == ImageDrawMode::kSkip) { |
| return; |
| } |
| |
| if (src.contains(image->bounds())) { |
| constraint = SkCanvas::kFast_SrcRectConstraint; |
| } |
| // Depending on the nature of image, it can flow through more or less optimal pipelines |
| SkTileMode tileMode = mode == ImageDrawMode::kDecal ? SkTileMode::kDecal : SkTileMode::kClamp; |
| |
| // Get final CTM matrix |
| SkPreConcatMatrixProvider matrixProvider(this->asMatrixProvider(), |
| preViewMatrix ? *preViewMatrix : SkMatrix::I()); |
| const SkMatrix& ctm(matrixProvider.localToDevice()); |
| |
| SkSamplingOptions sampling = origSampling; |
| bool sharpenMM = fContext->priv().options().fSharpenMipmappedTextures; |
| if (sampling.mipmap != SkMipmapMode::kNone && can_disable_mipmap(ctm, srcToDst, sharpenMM)) { |
| sampling = SkSamplingOptions(sampling.filter); |
| } |
| auto clip = this->clip(); |
| |
| if (!image->isTextureBacked() && !as_IB(image)->isPinnedOnContext(fContext.get())) { |
| int tileFilterPad; |
| if (sampling.useCubic) { |
| tileFilterPad = GrBicubicEffect::kFilterTexelPad; |
| } else if (sampling.filter == SkFilterMode::kNearest) { |
| tileFilterPad = 0; |
| } else { |
| tileFilterPad = 1; |
| } |
| int maxTileSize = fContext->priv().caps()->maxTextureSize() - 2*tileFilterPad; |
| int tileSize; |
| SkIRect clippedSubset; |
| if (should_tile_image_id(fContext.get(), |
| fSurfaceDrawContext->dimensions(), |
| clip, |
| image->unique(), |
| image->dimensions(), |
| ctm, |
| srcToDst, |
| &src, |
| maxTileSize, |
| &tileSize, |
| &clippedSubset)) { |
| // Extract pixels on the CPU, since we have to split into separate textures before |
| // sending to the GPU if tiling. |
| if (SkBitmap bm; as_IB(image)->getROPixels(nullptr, &bm)) { |
| // This is the funnel for all paths that draw tiled bitmaps/images. |
| draw_tiled_bitmap(fContext.get(), |
| fSurfaceDrawContext.get(), |
| clip, |
| bm, |
| tileSize, |
| matrixProvider, |
| srcToDst, |
| src, |
| clippedSubset, |
| paint, |
| aa, |
| constraint, |
| sampling, |
| tileMode); |
| return; |
| } |
| } |
| } |
| |
| draw_image(fContext.get(), |
| fSurfaceDrawContext.get(), |
| clip, |
| matrixProvider, |
| paint, |
| *as_IB(image), |
| src, |
| dst, |
| dstClip, |
| srcToDst, |
| aa, |
| aaFlags, |
| constraint, |
| sampling); |
| return; |
| } |
| |
| void Device::drawEdgeAAImageSet(const SkCanvas::ImageSetEntry set[], int count, |
| const SkPoint dstClips[], const SkMatrix preViewMatrices[], |
| const SkSamplingOptions& sampling, const SkPaint& paint, |
| SkCanvas::SrcRectConstraint constraint) { |
| SkASSERT(count > 0); |
| if (!can_use_draw_texture(paint, sampling.useCubic, sampling.mipmap)) { |
| // Send every entry through drawImageQuad() to handle the more complicated paint |
| int dstClipIndex = 0; |
| for (int i = 0; i < count; ++i) { |
| // Only no clip or quad clip are supported |
| SkASSERT(!set[i].fHasClip || dstClips); |
| SkASSERT(set[i].fMatrixIndex < 0 || preViewMatrices); |
| |
| SkTCopyOnFirstWrite<SkPaint> entryPaint(paint); |
| if (set[i].fAlpha != 1.f) { |
| auto paintAlpha = paint.getAlphaf(); |
| entryPaint.writable()->setAlphaf(paintAlpha * set[i].fAlpha); |
| } |
| // Always send GrAA::kYes to preserve seaming across tiling in MSAA |
| this->drawImageQuad( |
| set[i].fImage.get(), &set[i].fSrcRect, &set[i].fDstRect, |
| set[i].fHasClip ? dstClips + dstClipIndex : nullptr, GrAA::kYes, |
| SkToGrQuadAAFlags(set[i].fAAFlags), |
| set[i].fMatrixIndex < 0 ? nullptr : preViewMatrices + set[i].fMatrixIndex, |
| sampling, *entryPaint, constraint); |
| dstClipIndex += 4 * set[i].fHasClip; |
| } |
| return; |
| } |
| |
| GrSamplerState::Filter filter = sampling.filter == SkFilterMode::kNearest |
| ? GrSamplerState::Filter::kNearest |
| : GrSamplerState::Filter::kLinear; |
| SkBlendMode mode = paint.getBlendMode_or(SkBlendMode::kSrcOver); |
| |
| SkAutoTArray<GrTextureSetEntry> textures(count); |
| // We accumulate compatible proxies until we find an an incompatible one or reach the end and |
| // issue the accumulated 'n' draws starting at 'base'. 'p' represents the number of proxy |
| // switches that occur within the 'n' entries. |
| int base = 0, n = 0, p = 0; |
| auto draw = [&](int nextBase) { |
| if (n > 0) { |
| auto textureXform = GrColorSpaceXform::Make(set[base].fImage->imageInfo().colorInfo(), |
| fSurfaceDrawContext->colorInfo()); |
| fSurfaceDrawContext->drawTextureSet(this->clip(), |
| textures.get() + base, |
| n, |
| p, |
| filter, |
| GrSamplerState::MipmapMode::kNone, |
| mode, |
| GrAA::kYes, |
| constraint, |
| this->localToDevice(), |
| std::move(textureXform)); |
| } |
| base = nextBase; |
| n = 0; |
| p = 0; |
| }; |
| int dstClipIndex = 0; |
| for (int i = 0; i < count; ++i) { |
| SkASSERT(!set[i].fHasClip || dstClips); |
| SkASSERT(set[i].fMatrixIndex < 0 || preViewMatrices); |
| |
| // Manage the dst clip pointer tracking before any continues are used so we don't lose |
| // our place in the dstClips array. |
| const SkPoint* clip = set[i].fHasClip ? dstClips + dstClipIndex : nullptr; |
| dstClipIndex += 4 * set[i].fHasClip; |
| |
| // The default SkBaseDevice implementation is based on drawImageRect which does not allow |
| // non-sorted src rects. TODO: Decide this is OK or make sure we handle it. |
| if (!set[i].fSrcRect.isSorted()) { |
| draw(i + 1); |
| continue; |
| } |
| |
| GrSurfaceProxyView view; |
| const SkImage_Base* image = as_IB(set[i].fImage.get()); |
| // Extract view from image, but skip YUV images so they get processed through |
| // drawImageQuad and the proper effect to dynamically sample their planes. |
| if (!image->isYUVA()) { |
| std::tie(view, std::ignore) = image->asView(this->recordingContext(), GrMipmapped::kNo); |
| if (image->isAlphaOnly()) { |
| skgpu::Swizzle swizzle = skgpu::Swizzle::Concat(view.swizzle(), |
| skgpu::Swizzle("aaaa")); |
| view = {view.detachProxy(), view.origin(), swizzle}; |
| } |
| } |
| |
| if (!view) { |
| // This image can't go through the texture op, send through general image pipeline |
| // after flushing current batch. |
| draw(i + 1); |
| SkTCopyOnFirstWrite<SkPaint> entryPaint(paint); |
| if (set[i].fAlpha != 1.f) { |
| auto paintAlpha = paint.getAlphaf(); |
| entryPaint.writable()->setAlphaf(paintAlpha * set[i].fAlpha); |
| } |
| this->drawImageQuad( |
| image, &set[i].fSrcRect, &set[i].fDstRect, clip, GrAA::kYes, |
| SkToGrQuadAAFlags(set[i].fAAFlags), |
| set[i].fMatrixIndex < 0 ? nullptr : preViewMatrices + set[i].fMatrixIndex, |
| sampling, *entryPaint, constraint); |
| continue; |
| } |
| |
| textures[i].fProxyView = std::move(view); |
| textures[i].fSrcAlphaType = image->alphaType(); |
| textures[i].fSrcRect = set[i].fSrcRect; |
| textures[i].fDstRect = set[i].fDstRect; |
| textures[i].fDstClipQuad = clip; |
| textures[i].fPreViewMatrix = |
| set[i].fMatrixIndex < 0 ? nullptr : preViewMatrices + set[i].fMatrixIndex; |
| textures[i].fColor = texture_color(paint.getColor4f(), set[i].fAlpha, |
| SkColorTypeToGrColorType(image->colorType()), |
| fSurfaceDrawContext->colorInfo()); |
| textures[i].fAAFlags = SkToGrQuadAAFlags(set[i].fAAFlags); |
| |
| if (n > 0 && |
| (!GrTextureProxy::ProxiesAreCompatibleAsDynamicState( |
| textures[i].fProxyView.proxy(), |
| textures[base].fProxyView.proxy()) || |
| textures[i].fProxyView.swizzle() != textures[base].fProxyView.swizzle() || |
| set[i].fImage->alphaType() != set[base].fImage->alphaType() || |
| !SkColorSpace::Equals(set[i].fImage->colorSpace(), set[base].fImage->colorSpace()))) { |
| draw(i); |
| } |
| // Whether or not we submitted a draw in the above if(), this ith entry is in the current |
| // set being accumulated so increment n, and increment p if proxies are different. |
| ++n; |
| if (n == 1 || textures[i - 1].fProxyView.proxy() != textures[i].fProxyView.proxy()) { |
| // First proxy or a different proxy (that is compatible, otherwise we'd have drawn up |
| // to i - 1). |
| ++p; |
| } |
| } |
| draw(count); |
| } |
| |
| } // namespace skgpu::v1 |
