| /* |
| * Copyright 2018 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "gm/gm.h" |
| #include "include/core/SkBitmap.h" |
| #include "include/core/SkBlendMode.h" |
| #include "include/core/SkCanvas.h" |
| #include "include/core/SkColor.h" |
| #include "include/core/SkColorFilter.h" |
| #include "include/core/SkColorPriv.h" |
| #include "include/core/SkColorSpace.h" |
| #include "include/core/SkFont.h" |
| #include "include/core/SkFontStyle.h" |
| #include "include/core/SkFontTypes.h" |
| #include "include/core/SkImage.h" |
| #include "include/core/SkImageGenerator.h" |
| #include "include/core/SkImageInfo.h" |
| #include "include/core/SkMatrix.h" |
| #include "include/core/SkPaint.h" |
| #include "include/core/SkPath.h" |
| #include "include/core/SkPixmap.h" |
| #include "include/core/SkPoint.h" |
| #include "include/core/SkRect.h" |
| #include "include/core/SkRefCnt.h" |
| #include "include/core/SkScalar.h" |
| #include "include/core/SkSize.h" |
| #include "include/core/SkString.h" |
| #include "include/core/SkTypeface.h" |
| #include "include/core/SkTypes.h" |
| #include "include/gpu/GrBackendSurface.h" |
| #include "include/gpu/GrConfig.h" |
| #include "include/gpu/GrDirectContext.h" |
| #include "include/gpu/GrRecordingContext.h" |
| #include "include/gpu/GrTypes.h" |
| #include "include/private/GrTypesPriv.h" |
| #include "include/private/SkHalf.h" |
| #include "include/private/SkTArray.h" |
| #include "include/private/SkTDArray.h" |
| #include "include/private/SkTPin.h" |
| #include "include/private/SkTemplates.h" |
| #include "include/utils/SkTextUtils.h" |
| #include "src/core/SkConvertPixels.h" |
| #include "src/core/SkYUVMath.h" |
| #include "src/gpu/GrCaps.h" |
| #include "src/gpu/GrRecordingContextPriv.h" |
| #include "tools/ToolUtils.h" |
| #include "tools/gpu/YUVUtils.h" |
| |
| #include <math.h> |
| #include <string.h> |
| #include <initializer_list> |
| #include <memory> |
| #include <utility> |
| |
| static const int kTileWidthHeight = 128; |
| static const int kLabelWidth = 64; |
| static const int kLabelHeight = 32; |
| static const int kSubsetPadding = 8; |
| static const int kPad = 1; |
| |
| enum YUVFormat { |
| // 4:2:0 formats, 24 bpp |
| kP016_YUVFormat, // 16-bit Y plane + 2x2 down sampled interleaved U/V plane (2 textures) |
| // 4:2:0 formats, "15 bpp" (but really 24 bpp) |
| kP010_YUVFormat, // same as kP016 except "10 bpp". Note that it is the same memory layout |
| // except that the bottom 6 bits are zeroed out (2 textures) |
| // TODO: we're cheating a bit w/ P010 and just treating it as unorm 16. This means its |
| // fully saturated values are 65504 rather than 65535 (that is just .9995 out of 1.0 though). |
| |
| // This is laid out the same as kP016 and kP010 but uses F16 unstead of U16. In this case |
| // the 10 bits/channel vs 16 bits/channel distinction isn't relevant. |
| kP016F_YUVFormat, |
| |
| // 4:4:4 formats, 64 bpp |
| kY416_YUVFormat, // 16-bit AVYU values all interleaved (1 texture) |
| |
| // 4:4:4 formats, 32 bpp |
| kAYUV_YUVFormat, // 8-bit YUVA values all interleaved (1 texture) |
| kY410_YUVFormat, // AVYU w/ 10bpp for YUV and 2 for A all interleaved (1 texture) |
| |
| // 4:2:0 formats, 12 bpp |
| kNV12_YUVFormat, // 8-bit Y plane + 2x2 down sampled interleaved U/V planes (2 textures) |
| kNV21_YUVFormat, // same as kNV12 but w/ U/V reversed in the interleaved texture (2 textures) |
| |
| kI420_YUVFormat, // 8-bit Y plane + separate 2x2 down sampled U and V planes (3 textures) |
| kYV12_YUVFormat, // 8-bit Y plane + separate 2x2 down sampled V and U planes (3 textures) |
| |
| kLast_YUVFormat = kYV12_YUVFormat |
| }; |
| |
| // Does the YUVFormat contain a slot for alpha? If not an external alpha plane is required for |
| // transparency. |
| static bool has_alpha_channel(YUVFormat format) { |
| switch (format) { |
| case kP016_YUVFormat: return false; |
| case kP010_YUVFormat: return false; |
| case kP016F_YUVFormat: return false; |
| case kY416_YUVFormat: return true; |
| case kAYUV_YUVFormat: return true; |
| case kY410_YUVFormat: return true; |
| case kNV12_YUVFormat: return false; |
| case kNV21_YUVFormat: return false; |
| case kI420_YUVFormat: return false; |
| case kYV12_YUVFormat: return false; |
| } |
| SkUNREACHABLE; |
| } |
| |
| class YUVAPlanarConfig { |
| public: |
| YUVAPlanarConfig(YUVFormat format, bool opaque, SkEncodedOrigin origin) : fOrigin(origin) { |
| switch (format) { |
| case kP016_YUVFormat: |
| case kP010_YUVFormat: |
| case kP016F_YUVFormat: |
| case kNV12_YUVFormat: |
| if (opaque) { |
| fPlaneConfig = SkYUVAInfo::PlaneConfig::kY_UV; |
| fSubsampling = SkYUVAInfo::Subsampling::k420; |
| } else { |
| fPlaneConfig = SkYUVAInfo::PlaneConfig::kY_UV_A; |
| fSubsampling = SkYUVAInfo::Subsampling::k420; |
| } |
| break; |
| case kY416_YUVFormat: |
| case kY410_YUVFormat: |
| if (opaque) { |
| fPlaneConfig = SkYUVAInfo::PlaneConfig::kUYV; |
| fSubsampling = SkYUVAInfo::Subsampling::k444; |
| } else { |
| fPlaneConfig = SkYUVAInfo::PlaneConfig::kUYVA; |
| fSubsampling = SkYUVAInfo::Subsampling::k444; |
| } |
| break; |
| case kAYUV_YUVFormat: |
| if (opaque) { |
| fPlaneConfig = SkYUVAInfo::PlaneConfig::kYUV; |
| fSubsampling = SkYUVAInfo::Subsampling::k444; |
| } else { |
| fPlaneConfig = SkYUVAInfo::PlaneConfig::kYUVA; |
| fSubsampling = SkYUVAInfo::Subsampling::k444; |
| } |
| break; |
| case kNV21_YUVFormat: |
| if (opaque) { |
| fPlaneConfig = SkYUVAInfo::PlaneConfig::kY_VU; |
| fSubsampling = SkYUVAInfo::Subsampling::k420; |
| } else { |
| fPlaneConfig = SkYUVAInfo::PlaneConfig::kY_VU_A; |
| fSubsampling = SkYUVAInfo::Subsampling::k420; |
| } |
| break; |
| case kI420_YUVFormat: |
| if (opaque) { |
| fPlaneConfig = SkYUVAInfo::PlaneConfig::kY_U_V; |
| fSubsampling = SkYUVAInfo::Subsampling::k420; |
| } else { |
| fPlaneConfig = SkYUVAInfo::PlaneConfig::kY_U_V_A; |
| fSubsampling = SkYUVAInfo::Subsampling::k420; |
| } |
| break; |
| case kYV12_YUVFormat: |
| if (opaque) { |
| fPlaneConfig = SkYUVAInfo::PlaneConfig::kY_V_U; |
| fSubsampling = SkYUVAInfo::Subsampling::k420; |
| } else { |
| fPlaneConfig = SkYUVAInfo::PlaneConfig::kY_V_U_A; |
| fSubsampling = SkYUVAInfo::Subsampling::k420; |
| } |
| break; |
| } |
| } |
| |
| int numPlanes() const { return SkYUVAInfo::NumPlanes(fPlaneConfig); } |
| |
| SkYUVAPixmaps makeYUVAPixmaps(SkISize dimensions, |
| SkYUVColorSpace yuvColorSpace, |
| const SkBitmap bitmaps[], |
| int numBitmaps) const; |
| |
| private: |
| SkYUVAInfo::PlaneConfig fPlaneConfig; |
| SkYUVAInfo::Subsampling fSubsampling; |
| SkEncodedOrigin fOrigin; |
| }; |
| |
| SkYUVAPixmaps YUVAPlanarConfig::makeYUVAPixmaps(SkISize dimensions, |
| SkYUVColorSpace yuvColorSpace, |
| const SkBitmap bitmaps[], |
| int numBitmaps) const { |
| SkYUVAInfo info(dimensions, fPlaneConfig, fSubsampling, yuvColorSpace, fOrigin); |
| SkPixmap pmaps[SkYUVAInfo::kMaxPlanes]; |
| int n = info.numPlanes(); |
| if (numBitmaps < n) { |
| return {}; |
| } |
| for (int i = 0; i < n; ++i) { |
| pmaps[i] = bitmaps[i].pixmap(); |
| } |
| return SkYUVAPixmaps::FromExternalPixmaps(info, pmaps); |
| } |
| |
| // All the planes we need to construct the various YUV formats |
| struct PlaneData { |
| SkBitmap fYFull; |
| SkBitmap fUFull; |
| SkBitmap fVFull; |
| SkBitmap fAFull; |
| SkBitmap fUQuarter; // 2x2 downsampled U channel |
| SkBitmap fVQuarter; // 2x2 downsampled V channel |
| |
| SkBitmap fFull; |
| SkBitmap fQuarter; // 2x2 downsampled YUVA |
| }; |
| |
| // Add a portion of a circle to 'path'. The points 'o1' and 'o2' are on the border of the circle |
| // and have tangents 'v1' and 'v2'. |
| static void add_arc(SkPath* path, |
| const SkPoint& o1, const SkVector& v1, |
| const SkPoint& o2, const SkVector& v2, |
| SkTDArray<SkRect>* circles, bool takeLongWayRound) { |
| |
| SkVector v3 = { -v1.fY, v1.fX }; |
| SkVector v4 = { v2.fY, -v2.fX }; |
| |
| SkScalar t = ((o2.fX - o1.fX) * v4.fY - (o2.fY - o1.fY) * v4.fX) / v3.cross(v4); |
| SkPoint center = { o1.fX + t * v3.fX, o1.fY + t * v3.fY }; |
| |
| SkRect r = { center.fX - t, center.fY - t, center.fX + t, center.fY + t }; |
| |
| if (circles) { |
| circles->push_back(r); |
| } |
| |
| SkVector startV = o1 - center, endV = o2 - center; |
| startV.normalize(); |
| endV.normalize(); |
| |
| SkScalar startDeg = SkRadiansToDegrees(SkScalarATan2(startV.fY, startV.fX)); |
| SkScalar endDeg = SkRadiansToDegrees(SkScalarATan2(endV.fY, endV.fX)); |
| |
| startDeg += 360.0f; |
| startDeg = fmodf(startDeg, 360.0f); |
| |
| endDeg += 360.0f; |
| endDeg = fmodf(endDeg, 360.0f); |
| |
| if (endDeg < startDeg) { |
| endDeg += 360.0f; |
| } |
| |
| SkScalar sweepDeg = SkTAbs(endDeg - startDeg); |
| if (!takeLongWayRound) { |
| sweepDeg = sweepDeg - 360; |
| } |
| |
| path->arcTo(r, startDeg, sweepDeg, false); |
| } |
| |
| static SkPath create_splat(const SkPoint& o, SkScalar innerRadius, SkScalar outerRadius, |
| SkScalar ratio, int numLobes, SkTDArray<SkRect>* circles) { |
| if (numLobes <= 1) { |
| return SkPath(); |
| } |
| |
| SkPath p; |
| |
| int numDivisions = 2 * numLobes; |
| SkScalar fullLobeDegrees = 360.0f / numLobes; |
| SkScalar outDegrees = ratio * fullLobeDegrees / (ratio + 1.0f); |
| SkScalar innerDegrees = fullLobeDegrees / (ratio + 1.0f); |
| SkMatrix outerStep, innerStep; |
| outerStep.setRotate(outDegrees); |
| innerStep.setRotate(innerDegrees); |
| SkVector curV = SkVector::Make(0.0f, 1.0f); |
| |
| if (circles) { |
| circles->push_back(SkRect::MakeLTRB(o.fX - innerRadius, o.fY - innerRadius, |
| o.fX + innerRadius, o.fY + innerRadius)); |
| } |
| |
| p.moveTo(o.fX + innerRadius * curV.fX, o.fY + innerRadius * curV.fY); |
| |
| for (int i = 0; i < numDivisions; ++i) { |
| |
| SkVector nextV; |
| if (0 == (i % 2)) { |
| nextV = outerStep.mapVector(curV.fX, curV.fY); |
| |
| SkPoint top = SkPoint::Make(o.fX + outerRadius * curV.fX, |
| o.fY + outerRadius * curV.fY); |
| SkPoint nextTop = SkPoint::Make(o.fX + outerRadius * nextV.fX, |
| o.fY + outerRadius * nextV.fY); |
| |
| p.lineTo(top); |
| add_arc(&p, top, curV, nextTop, nextV, circles, true); |
| } else { |
| nextV = innerStep.mapVector(curV.fX, curV.fY); |
| |
| SkPoint bot = SkPoint::Make(o.fX + innerRadius * curV.fX, |
| o.fY + innerRadius * curV.fY); |
| SkPoint nextBot = SkPoint::Make(o.fX + innerRadius * nextV.fX, |
| o.fY + innerRadius * nextV.fY); |
| |
| p.lineTo(bot); |
| add_arc(&p, bot, curV, nextBot, nextV, nullptr, false); |
| } |
| |
| curV = nextV; |
| } |
| |
| p.close(); |
| |
| return p; |
| } |
| |
| static SkBitmap make_bitmap(SkColorType colorType, const SkPath& path, |
| const SkTDArray<SkRect>& circles, bool opaque, bool padWithRed) { |
| const SkColor kGreen = ToolUtils::color_to_565(SkColorSetARGB(0xFF, 178, 240, 104)); |
| const SkColor kBlue = ToolUtils::color_to_565(SkColorSetARGB(0xFF, 173, 167, 252)); |
| const SkColor kYellow = ToolUtils::color_to_565(SkColorSetARGB(0xFF, 255, 221, 117)); |
| const SkColor kMagenta = ToolUtils::color_to_565(SkColorSetARGB(0xFF, 255, 60, 217)); |
| const SkColor kCyan = ToolUtils::color_to_565(SkColorSetARGB(0xFF, 45, 237, 205)); |
| |
| int widthHeight = kTileWidthHeight + (padWithRed ? 2 * kSubsetPadding : 0); |
| |
| SkImageInfo ii = SkImageInfo::Make(widthHeight, widthHeight, |
| colorType, kPremul_SkAlphaType); |
| |
| SkBitmap bm; |
| bm.allocPixels(ii); |
| |
| std::unique_ptr<SkCanvas> canvas = SkCanvas::MakeRasterDirect(ii, |
| bm.getPixels(), |
| bm.rowBytes()); |
| if (padWithRed) { |
| canvas->clear(SK_ColorRED); |
| canvas->translate(kSubsetPadding, kSubsetPadding); |
| canvas->clipRect(SkRect::MakeWH(kTileWidthHeight, kTileWidthHeight)); |
| } |
| canvas->clear(opaque ? kGreen : SK_ColorTRANSPARENT); |
| |
| SkPaint paint; |
| paint.setAntiAlias(false); // serialize-8888 doesn't seem to work well w/ partial transparency |
| paint.setColor(kBlue); |
| |
| canvas->drawPath(path, paint); |
| |
| paint.setBlendMode(SkBlendMode::kSrc); |
| for (int i = 0; i < circles.count(); ++i) { |
| SkColor color; |
| switch (i % 3) { |
| case 0: color = kYellow; break; |
| case 1: color = kMagenta; break; |
| default: color = kCyan; break; |
| } |
| paint.setColor(color); |
| paint.setAlpha(opaque ? 0xFF : 0x40); |
| SkRect r = circles[i]; |
| r.inset(r.width()/4, r.height()/4); |
| canvas->drawOval(r, paint); |
| } |
| |
| return bm; |
| } |
| |
| static void convert_rgba_to_yuva(const float mtx[20], SkColor col, uint8_t yuv[4]) { |
| const uint8_t r = SkColorGetR(col); |
| const uint8_t g = SkColorGetG(col); |
| const uint8_t b = SkColorGetB(col); |
| |
| yuv[0] = SkTPin(SkScalarRoundToInt(mtx[ 0]*r + mtx[ 1]*g + mtx[ 2]*b + mtx[ 4]*255), 0, 255); |
| yuv[1] = SkTPin(SkScalarRoundToInt(mtx[ 5]*r + mtx[ 6]*g + mtx[ 7]*b + mtx[ 9]*255), 0, 255); |
| yuv[2] = SkTPin(SkScalarRoundToInt(mtx[10]*r + mtx[11]*g + mtx[12]*b + mtx[14]*255), 0, 255); |
| yuv[3] = SkColorGetA(col); |
| } |
| |
| static void extract_planes(const SkBitmap& origBM, |
| SkYUVColorSpace yuvColorSpace, |
| SkEncodedOrigin origin, |
| PlaneData* planes) { |
| SkImageInfo ii = origBM.info(); |
| if (SkEncodedOriginSwapsWidthHeight(origin)) { |
| ii = ii.makeWH(ii.height(), ii.width()); |
| } |
| SkBitmap orientedBM; |
| orientedBM.allocPixels(ii); |
| SkCanvas canvas(orientedBM); |
| SkMatrix matrix = SkEncodedOriginToMatrix(origin, origBM.width(), origBM.height()); |
| SkAssertResult(matrix.invert(&matrix)); |
| canvas.concat(matrix); |
| canvas.drawImage(origBM.asImage(), 0, 0); |
| |
| if (yuvColorSpace == kIdentity_SkYUVColorSpace) { |
| // To test the identity color space we use JPEG YUV planes |
| yuvColorSpace = kJPEG_SkYUVColorSpace; |
| } |
| |
| SkASSERT(!(ii.width() % 2)); |
| SkASSERT(!(ii.height() % 2)); |
| planes->fYFull.allocPixels( |
| SkImageInfo::Make(ii.dimensions(), kGray_8_SkColorType, kUnpremul_SkAlphaType)); |
| planes->fUFull.allocPixels( |
| SkImageInfo::Make(ii.dimensions(), kGray_8_SkColorType, kUnpremul_SkAlphaType)); |
| planes->fVFull.allocPixels( |
| SkImageInfo::Make(ii.dimensions(), kGray_8_SkColorType, kUnpremul_SkAlphaType)); |
| planes->fAFull.allocPixels(SkImageInfo::MakeA8(ii.dimensions())); |
| planes->fUQuarter.allocPixels(SkImageInfo::Make(ii.width()/2, ii.height()/2, |
| kGray_8_SkColorType, kUnpremul_SkAlphaType)); |
| planes->fVQuarter.allocPixels(SkImageInfo::Make(ii.width()/2, ii.height()/2, |
| kGray_8_SkColorType, kUnpremul_SkAlphaType)); |
| |
| planes->fFull.allocPixels( |
| SkImageInfo::Make(ii.dimensions(), kRGBA_F32_SkColorType, kUnpremul_SkAlphaType)); |
| planes->fQuarter.allocPixels(SkImageInfo::Make(ii.width()/2, ii.height()/2, |
| kRGBA_F32_SkColorType, kUnpremul_SkAlphaType)); |
| |
| float mtx[20]; |
| SkColorMatrix_RGB2YUV(yuvColorSpace, mtx); |
| |
| SkColor4f* dst = (SkColor4f *) planes->fFull.getAddr(0, 0); |
| for (int y = 0; y < orientedBM.height(); ++y) { |
| for (int x = 0; x < orientedBM.width(); ++x) { |
| SkColor col = orientedBM.getColor(x, y); |
| |
| uint8_t yuva[4]; |
| |
| convert_rgba_to_yuva(mtx, col, yuva); |
| |
| *planes->fYFull.getAddr8(x, y) = yuva[0]; |
| *planes->fUFull.getAddr8(x, y) = yuva[1]; |
| *planes->fVFull.getAddr8(x, y) = yuva[2]; |
| *planes->fAFull.getAddr8(x, y) = yuva[3]; |
| |
| // TODO: render in F32 rather than converting here |
| dst->fR = yuva[0] / 255.0f; |
| dst->fG = yuva[1] / 255.0f; |
| dst->fB = yuva[2] / 255.0f; |
| dst->fA = yuva[3] / 255.0f; |
| ++dst; |
| } |
| } |
| |
| dst = (SkColor4f *) planes->fQuarter.getAddr(0, 0); |
| for (int y = 0; y < orientedBM.height()/2; ++y) { |
| for (int x = 0; x < orientedBM.width()/2; ++x) { |
| uint32_t yAccum = 0, uAccum = 0, vAccum = 0, aAccum = 0; |
| |
| yAccum += *planes->fYFull.getAddr8(2*x, 2*y); |
| yAccum += *planes->fYFull.getAddr8(2*x+1, 2*y); |
| yAccum += *planes->fYFull.getAddr8(2*x, 2*y+1); |
| yAccum += *planes->fYFull.getAddr8(2*x+1, 2*y+1); |
| |
| uAccum += *planes->fUFull.getAddr8(2*x, 2*y); |
| uAccum += *planes->fUFull.getAddr8(2*x+1, 2*y); |
| uAccum += *planes->fUFull.getAddr8(2*x, 2*y+1); |
| uAccum += *planes->fUFull.getAddr8(2*x+1, 2*y+1); |
| |
| *planes->fUQuarter.getAddr8(x, y) = uAccum / 4.0f; |
| |
| vAccum += *planes->fVFull.getAddr8(2*x, 2*y); |
| vAccum += *planes->fVFull.getAddr8(2*x+1, 2*y); |
| vAccum += *planes->fVFull.getAddr8(2*x, 2*y+1); |
| vAccum += *planes->fVFull.getAddr8(2*x+1, 2*y+1); |
| |
| *planes->fVQuarter.getAddr8(x, y) = vAccum / 4.0f; |
| |
| aAccum += *planes->fAFull.getAddr8(2*x, 2*y); |
| aAccum += *planes->fAFull.getAddr8(2*x+1, 2*y); |
| aAccum += *planes->fAFull.getAddr8(2*x, 2*y+1); |
| aAccum += *planes->fAFull.getAddr8(2*x+1, 2*y+1); |
| |
| // TODO: render in F32 rather than converting here |
| dst->fR = yAccum / (4.0f * 255.0f); |
| dst->fG = uAccum / (4.0f * 255.0f); |
| dst->fB = vAccum / (4.0f * 255.0f); |
| dst->fA = aAccum / (4.0f * 255.0f); |
| ++dst; |
| } |
| } |
| } |
| |
| // Create a 2x2 downsampled SkBitmap. It is stored in an RG texture. It can optionally be |
| // uv (i.e., NV12) or vu (i.e., NV21). |
| static SkBitmap make_quarter_2_channel(const SkBitmap& fullY, |
| const SkBitmap& quarterU, |
| const SkBitmap& quarterV, |
| bool uv) { |
| SkBitmap result; |
| |
| result.allocPixels(SkImageInfo::Make(fullY.width()/2, |
| fullY.height()/2, |
| kR8G8_unorm_SkColorType, |
| kUnpremul_SkAlphaType)); |
| |
| for (int y = 0; y < fullY.height()/2; ++y) { |
| for (int x = 0; x < fullY.width()/2; ++x) { |
| uint8_t u8 = *quarterU.getAddr8(x, y); |
| uint8_t v8 = *quarterV.getAddr8(x, y); |
| |
| if (uv) { |
| *result.getAddr16(x, y) = (v8 << 8) | u8; |
| } else { |
| *result.getAddr16(x, y) = (u8 << 8) | v8; |
| } |
| } |
| } |
| |
| return result; |
| } |
| |
| // Create some flavor of a 16bits/channel bitmap from a RGBA_F32 source |
| static SkBitmap make_16(const SkBitmap& src, SkColorType dstCT, |
| std::function<void(uint16_t* dstPixel, const float* srcPixel)> convert) { |
| SkASSERT(src.colorType() == kRGBA_F32_SkColorType); |
| |
| SkBitmap result; |
| |
| result.allocPixels(SkImageInfo::Make(src.dimensions(), dstCT, kUnpremul_SkAlphaType)); |
| |
| for (int y = 0; y < src.height(); ++y) { |
| for (int x = 0; x < src.width(); ++x) { |
| const float* srcPixel = (const float*) src.getAddr(x, y); |
| uint16_t* dstPixel = (uint16_t*) result.getAddr(x, y); |
| |
| convert(dstPixel, srcPixel); |
| } |
| } |
| |
| return result; |
| } |
| |
| static uint16_t flt_2_uint16(float flt) { return SkScalarRoundToInt(flt * 65535.0f); } |
| |
| // Recombine the separate planes into some YUV format. Returns the number of planes. |
| static int create_YUV(const PlaneData& planes, |
| YUVFormat yuvFormat, |
| SkBitmap resultBMs[], |
| bool opaque) { |
| int nextLayer = 0; |
| |
| switch (yuvFormat) { |
| case kY416_YUVFormat: { |
| resultBMs[nextLayer++] = make_16(planes.fFull, kR16G16B16A16_unorm_SkColorType, |
| [] (uint16_t* dstPixel, const float* srcPixel) { |
| dstPixel[0] = flt_2_uint16(srcPixel[1]); // U |
| dstPixel[1] = flt_2_uint16(srcPixel[0]); // Y |
| dstPixel[2] = flt_2_uint16(srcPixel[2]); // V |
| dstPixel[3] = flt_2_uint16(srcPixel[3]); // A |
| }); |
| break; |
| } |
| case kAYUV_YUVFormat: { |
| SkBitmap yuvaFull; |
| |
| yuvaFull.allocPixels(SkImageInfo::Make(planes.fYFull.width(), planes.fYFull.height(), |
| kRGBA_8888_SkColorType, kUnpremul_SkAlphaType)); |
| |
| for (int y = 0; y < planes.fYFull.height(); ++y) { |
| for (int x = 0; x < planes.fYFull.width(); ++x) { |
| |
| uint8_t Y = *planes.fYFull.getAddr8(x, y); |
| uint8_t U = *planes.fUFull.getAddr8(x, y); |
| uint8_t V = *planes.fVFull.getAddr8(x, y); |
| uint8_t A = *planes.fAFull.getAddr8(x, y); |
| |
| // NOT premul! |
| // V and Y swapped to match RGBA layout |
| SkColor c = SkColorSetARGB(A, V, U, Y); |
| *yuvaFull.getAddr32(x, y) = c; |
| } |
| } |
| |
| resultBMs[nextLayer++] = yuvaFull; |
| break; |
| } |
| case kY410_YUVFormat: { |
| SkBitmap yuvaFull; |
| uint32_t Y, U, V; |
| uint8_t A; |
| |
| yuvaFull.allocPixels(SkImageInfo::Make(planes.fYFull.width(), planes.fYFull.height(), |
| kRGBA_1010102_SkColorType, |
| kUnpremul_SkAlphaType)); |
| |
| for (int y = 0; y < planes.fYFull.height(); ++y) { |
| for (int x = 0; x < planes.fYFull.width(); ++x) { |
| |
| Y = SkScalarRoundToInt((*planes.fYFull.getAddr8(x, y) / 255.0f) * 1023.0f); |
| U = SkScalarRoundToInt((*planes.fUFull.getAddr8(x, y) / 255.0f) * 1023.0f); |
| V = SkScalarRoundToInt((*planes.fVFull.getAddr8(x, y) / 255.0f) * 1023.0f); |
| A = SkScalarRoundToInt((*planes.fAFull.getAddr8(x, y) / 255.0f) * 3.0f); |
| |
| // NOT premul! |
| *yuvaFull.getAddr32(x, y) = (A << 30) | (V << 20) | (Y << 10) | (U << 0); |
| } |
| } |
| |
| resultBMs[nextLayer++] = yuvaFull; |
| break; |
| } |
| case kP016_YUVFormat: // fall through |
| case kP010_YUVFormat: { |
| resultBMs[nextLayer++] = make_16(planes.fFull, kA16_unorm_SkColorType, |
| [tenBitsPP = (yuvFormat == kP010_YUVFormat)] |
| (uint16_t* dstPixel, const float* srcPixel) { |
| uint16_t val16 = flt_2_uint16(srcPixel[0]); |
| dstPixel[0] = tenBitsPP ? (val16 & 0xFFC0) |
| : val16; |
| }); |
| resultBMs[nextLayer++] = make_16(planes.fQuarter, kR16G16_unorm_SkColorType, |
| [tenBitsPP = (yuvFormat == kP010_YUVFormat)] |
| (uint16_t* dstPixel, const float* srcPixel) { |
| uint16_t u16 = flt_2_uint16(srcPixel[1]); |
| uint16_t v16 = flt_2_uint16(srcPixel[2]); |
| dstPixel[0] = tenBitsPP ? (u16 & 0xFFC0) : u16; |
| dstPixel[1] = tenBitsPP ? (v16 & 0xFFC0) : v16; |
| }); |
| if (!opaque) { |
| resultBMs[nextLayer++] = make_16(planes.fFull, kA16_unorm_SkColorType, |
| [tenBitsPP = (yuvFormat == kP010_YUVFormat)] |
| (uint16_t* dstPixel, const float* srcPixel) { |
| uint16_t val16 = flt_2_uint16(srcPixel[3]); |
| dstPixel[0] = tenBitsPP ? (val16 & 0xFFC0) |
| : val16; |
| }); |
| } |
| return nextLayer; |
| } |
| case kP016F_YUVFormat: { |
| resultBMs[nextLayer++] = make_16(planes.fFull, kA16_float_SkColorType, |
| [] (uint16_t* dstPixel, const float* srcPixel) { |
| dstPixel[0] = SkFloatToHalf(srcPixel[0]); |
| }); |
| resultBMs[nextLayer++] = make_16(planes.fQuarter, kR16G16_float_SkColorType, |
| [] (uint16_t* dstPixel, const float* srcPixel) { |
| dstPixel[0] = SkFloatToHalf(srcPixel[1]); |
| dstPixel[1] = SkFloatToHalf(srcPixel[2]); |
| }); |
| if (!opaque) { |
| resultBMs[nextLayer++] = make_16(planes.fFull, kA16_float_SkColorType, |
| [] (uint16_t* dstPixel, const float* srcPixel) { |
| dstPixel[0] = SkFloatToHalf(srcPixel[3]); |
| }); |
| } |
| return nextLayer; |
| } |
| case kNV12_YUVFormat: { |
| SkBitmap uvQuarter = make_quarter_2_channel(planes.fYFull, |
| planes.fUQuarter, |
| planes.fVQuarter, true); |
| resultBMs[nextLayer++] = planes.fYFull; |
| resultBMs[nextLayer++] = uvQuarter; |
| break; |
| } |
| case kNV21_YUVFormat: { |
| SkBitmap vuQuarter = make_quarter_2_channel(planes.fYFull, |
| planes.fUQuarter, |
| planes.fVQuarter, false); |
| resultBMs[nextLayer++] = planes.fYFull; |
| resultBMs[nextLayer++] = vuQuarter; |
| break; |
| } |
| case kI420_YUVFormat: |
| resultBMs[nextLayer++] = planes.fYFull; |
| resultBMs[nextLayer++] = planes.fUQuarter; |
| resultBMs[nextLayer++] = planes.fVQuarter; |
| break; |
| case kYV12_YUVFormat: |
| resultBMs[nextLayer++] = planes.fYFull; |
| resultBMs[nextLayer++] = planes.fVQuarter; |
| resultBMs[nextLayer++] = planes.fUQuarter; |
| break; |
| } |
| |
| if (!opaque && !has_alpha_channel(yuvFormat)) { |
| resultBMs[nextLayer++] = planes.fAFull; |
| } |
| return nextLayer; |
| } |
| |
| static void draw_col_label(SkCanvas* canvas, int x, int yuvColorSpace, bool opaque) { |
| static const char* kYUVColorSpaceNames[] = {"JPEG", "601", "709F", "709L", |
| "2020_8F", "2020_8L", "2020_10F", "2020_10L", |
| "2020_12F", "2020_12L", "Identity"}; |
| static_assert(SK_ARRAY_COUNT(kYUVColorSpaceNames) == kLastEnum_SkYUVColorSpace + 1); |
| |
| SkPaint paint; |
| SkFont font(ToolUtils::create_portable_typeface(nullptr, SkFontStyle::Bold()), 16); |
| font.setEdging(SkFont::Edging::kAlias); |
| |
| SkRect textRect; |
| SkString colLabel; |
| |
| colLabel.printf("%s", kYUVColorSpaceNames[yuvColorSpace]); |
| font.measureText(colLabel.c_str(), colLabel.size(), SkTextEncoding::kUTF8, &textRect); |
| int y = textRect.height(); |
| |
| SkTextUtils::DrawString(canvas, colLabel.c_str(), x, y, font, paint, SkTextUtils::kCenter_Align); |
| |
| colLabel.printf("%s", opaque ? "Opaque" : "Transparent"); |
| |
| font.measureText(colLabel.c_str(), colLabel.size(), SkTextEncoding::kUTF8, &textRect); |
| y += textRect.height(); |
| |
| SkTextUtils::DrawString(canvas, colLabel.c_str(), x, y, font, paint, SkTextUtils::kCenter_Align); |
| } |
| |
| static void draw_row_label(SkCanvas* canvas, int y, int yuvFormat) { |
| static const char* kYUVFormatNames[] = { |
| "P016", "P010", "P016F", "Y416", "AYUV", "Y410", "NV12", "NV21", "I420", "YV12" |
| }; |
| static_assert(SK_ARRAY_COUNT(kYUVFormatNames) == kLast_YUVFormat + 1); |
| |
| SkPaint paint; |
| SkFont font(ToolUtils::create_portable_typeface(nullptr, SkFontStyle::Bold()), 16); |
| font.setEdging(SkFont::Edging::kAlias); |
| |
| SkRect textRect; |
| SkString rowLabel; |
| |
| rowLabel.printf("%s", kYUVFormatNames[yuvFormat]); |
| font.measureText(rowLabel.c_str(), rowLabel.size(), SkTextEncoding::kUTF8, &textRect); |
| y += kTileWidthHeight/2 + textRect.height()/2; |
| |
| canvas->drawString(rowLabel, 0, y, font, paint); |
| } |
| |
| static sk_sp<SkColorFilter> yuv_to_rgb_colorfilter() { |
| static const float kJPEGConversionMatrix[20] = { |
| 1.0f, 0.0f, 1.402f, 0.0f, -180.0f/255, |
| 1.0f, -0.344136f, -0.714136f, 0.0f, 136.0f/255, |
| 1.0f, 1.772f, 0.0f, 0.0f, -227.6f/255, |
| 0.0f, 0.0f, 0.0f, 1.0f, 0.0f |
| }; |
| |
| return SkColorFilters::Matrix(kJPEGConversionMatrix); |
| } |
| |
| namespace skiagm { |
| |
| // This GM creates an opaque and transparent bitmap, extracts the planes and then recombines |
| // them into various YUV formats. It then renders the results in the grid: |
| // |
| // JPEG 601 709 Identity |
| // Transparent Opaque Transparent Opaque Transparent Opaque Transparent Opaque |
| // originals |
| // P016 |
| // P010 |
| // P016F |
| // Y416 |
| // AYUV |
| // Y410 |
| // NV12 |
| // NV21 |
| // I420 |
| // YV12 |
| class WackyYUVFormatsGM : public GM { |
| public: |
| using Type = sk_gpu_test::LazyYUVImage::Type; |
| |
| WackyYUVFormatsGM(bool useTargetColorSpace, bool useSubset, Type type) |
| : fUseTargetColorSpace(useTargetColorSpace), fUseSubset(useSubset), fImageType(type) { |
| this->setBGColor(0xFFCCCCCC); |
| } |
| |
| protected: |
| SkString onShortName() override { |
| SkString name("wacky_yuv_formats"); |
| if (fUseTargetColorSpace) { |
| name += "_cs"; |
| } |
| if (fUseSubset) { |
| name += "_domain"; |
| } |
| switch (fImageType) { |
| case Type::kFromPixmaps: |
| name += "_frompixmaps"; |
| break; |
| case Type::kFromTextures: |
| break; |
| case Type::kFromGenerator: |
| name += "_imggen"; |
| break; |
| } |
| |
| return name; |
| } |
| |
| SkISize onISize() override { |
| int numCols = 2 * (kLastEnum_SkYUVColorSpace + 1); // opacity x #-color-spaces |
| int numRows = 1 + (kLast_YUVFormat + 1); // original + #-yuv-formats |
| int wh = SkScalarCeilToInt(kTileWidthHeight * (fUseSubset ? 1.5f : 1.f)); |
| return SkISize::Make(kLabelWidth + numCols * (wh + kPad), |
| kLabelHeight + numRows * (wh + kPad)); |
| } |
| |
| void createBitmaps() { |
| SkPoint origin = { kTileWidthHeight/2.0f, kTileWidthHeight/2.0f }; |
| float outerRadius = kTileWidthHeight/2.0f - 20.0f; |
| float innerRadius = 20.0f; |
| |
| { |
| // transparent |
| SkTDArray<SkRect> circles; |
| SkPath path = create_splat(origin, innerRadius, outerRadius, 1.0f, 5, &circles); |
| fOriginalBMs[0] = make_bitmap(kRGBA_8888_SkColorType, path, circles, false, fUseSubset); |
| } |
| |
| { |
| // opaque |
| SkTDArray<SkRect> circles; |
| SkPath path = create_splat(origin, innerRadius, outerRadius, 1.0f, 7, &circles); |
| fOriginalBMs[1] = make_bitmap(kRGBA_8888_SkColorType, path, circles, true, fUseSubset); |
| } |
| |
| if (fUseTargetColorSpace) { |
| fTargetColorSpace = SkColorSpace::MakeSRGB()->makeColorSpin(); |
| } |
| } |
| |
| bool createImages(GrDirectContext* dContext) { |
| int origin = 0; |
| for (bool opaque : { false, true }) { |
| for (int cs = kJPEG_SkYUVColorSpace; cs <= kLastEnum_SkYUVColorSpace; ++cs) { |
| PlaneData planes; |
| extract_planes(fOriginalBMs[opaque], |
| static_cast<SkYUVColorSpace>(cs), |
| static_cast<SkEncodedOrigin>(origin + 1), // valid origins are 1...8 |
| &planes); |
| |
| for (int f = kP016_YUVFormat; f <= kLast_YUVFormat; ++f) { |
| auto format = static_cast<YUVFormat>(f); |
| SkBitmap resultBMs[4]; |
| |
| int numPlanes = create_YUV(planes, format, resultBMs, opaque); |
| const YUVAPlanarConfig planarConfig(format, |
| opaque, |
| static_cast<SkEncodedOrigin>(origin + 1)); |
| SkYUVAPixmaps pixmaps = |
| planarConfig.makeYUVAPixmaps(fOriginalBMs[opaque].dimensions(), |
| static_cast<SkYUVColorSpace>(cs), |
| resultBMs, |
| numPlanes); |
| auto lazyYUV = sk_gpu_test::LazyYUVImage::Make(std::move(pixmaps)); |
| |
| fImages[opaque][cs][format] = lazyYUV->refImage(dContext, fImageType); |
| } |
| origin = (origin + 1) % 8; |
| } |
| } |
| |
| if (dContext) { |
| // Some backends (e.g., Vulkan) require all work be completed for backend textures |
| // before they are deleted. Since we don't know when we'll next have access to a |
| // direct context, flush all the work now. |
| dContext->flush(); |
| dContext->submit(true); |
| } |
| |
| return true; |
| } |
| |
| DrawResult onGpuSetup(GrDirectContext* dContext, SkString* errorMsg) override { |
| this->createBitmaps(); |
| |
| if (dContext && dContext->abandoned()) { |
| // This isn't a GpuGM so a null 'context' is okay but an abandoned context |
| // if forbidden. |
| return DrawResult::kSkip; |
| } |
| |
| // Only the generator is expected to work with the CPU backend. |
| if (fImageType != Type::kFromGenerator && !dContext) { |
| return DrawResult::kSkip; |
| } |
| |
| if (!this->createImages(dContext)) { |
| *errorMsg = "Failed to create YUV images"; |
| return DrawResult::kFail; |
| } |
| |
| return DrawResult::kOk; |
| } |
| |
| void onGpuTeardown() override { |
| for (int i = 0; i < 2; ++i) { |
| for (int j = 0; j <= kLastEnum_SkYUVColorSpace; ++j) { |
| for (int k = 0; k <= kLast_YUVFormat; ++k) { |
| fImages[i][j][k] = nullptr; |
| } |
| } |
| } |
| } |
| |
| void onDraw(SkCanvas* canvas) override { |
| auto direct = GrAsDirectContext(canvas->recordingContext()); |
| |
| float cellWidth = kTileWidthHeight, cellHeight = kTileWidthHeight; |
| if (fUseSubset) { |
| cellWidth *= 1.5f; |
| cellHeight *= 1.5f; |
| } |
| |
| SkRect srcRect = SkRect::Make(fOriginalBMs[0].dimensions()); |
| SkRect dstRect = SkRect::MakeXYWH(kLabelWidth, 0.f, srcRect.width(), srcRect.height()); |
| |
| SkCanvas::SrcRectConstraint constraint = SkCanvas::kFast_SrcRectConstraint; |
| if (fUseSubset) { |
| srcRect.inset(kSubsetPadding, kSubsetPadding); |
| // Draw a larger rectangle to ensure bilerp filtering would normally read outside the |
| // srcRect and hit the red pixels, if strict constraint weren't used. |
| dstRect.fRight = kLabelWidth + 1.5f * srcRect.width(); |
| dstRect.fBottom = 1.5f * srcRect.height(); |
| constraint = SkCanvas::kStrict_SrcRectConstraint; |
| } |
| |
| SkSamplingOptions sampling(SkFilterMode::kLinear); |
| for (int cs = kJPEG_SkYUVColorSpace; cs <= kLastEnum_SkYUVColorSpace; ++cs) { |
| SkPaint paint; |
| if (kIdentity_SkYUVColorSpace == cs) { |
| // The identity color space needs post processing to appear correctly |
| paint.setColorFilter(yuv_to_rgb_colorfilter()); |
| } |
| |
| for (int opaque : { 0, 1 }) { |
| dstRect.offsetTo(dstRect.fLeft, kLabelHeight); |
| |
| draw_col_label(canvas, dstRect.fLeft + cellWidth / 2, cs, opaque); |
| |
| canvas->drawImageRect(fOriginalBMs[opaque].asImage(), srcRect, dstRect, |
| SkSamplingOptions(), nullptr, constraint); |
| dstRect.offset(0.f, cellHeight + kPad); |
| |
| for (int format = kP016_YUVFormat; format <= kLast_YUVFormat; ++format) { |
| draw_row_label(canvas, dstRect.fTop, format); |
| if (fUseTargetColorSpace && fImages[opaque][cs][format]) { |
| // Making a CS-specific version of a kIdentity_SkYUVColorSpace YUV image |
| // doesn't make a whole lot of sense. The colorSpace conversion will |
| // operate on the YUV components rather than the RGB components. |
| sk_sp<SkImage> csImage = |
| fImages[opaque][cs][format]->makeColorSpace(fTargetColorSpace, direct); |
| canvas->drawImageRect(csImage, srcRect, dstRect, sampling, |
| &paint, constraint); |
| } else { |
| canvas->drawImageRect(fImages[opaque][cs][format], srcRect, dstRect, |
| sampling, &paint, constraint); |
| } |
| dstRect.offset(0.f, cellHeight + kPad); |
| } |
| |
| dstRect.offset(cellWidth + kPad, 0.f); |
| } |
| } |
| } |
| |
| private: |
| SkBitmap fOriginalBMs[2]; |
| sk_sp<SkImage> fImages[2][kLastEnum_SkYUVColorSpace + 1][kLast_YUVFormat + 1]; |
| bool fUseTargetColorSpace; |
| bool fUseSubset; |
| Type fImageType; |
| sk_sp<SkColorSpace> fTargetColorSpace; |
| |
| using INHERITED = GM; |
| }; |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| DEF_GM(return new WackyYUVFormatsGM(/* target cs */ false, |
| /* subset */ false, |
| WackyYUVFormatsGM::Type::kFromTextures);) |
| DEF_GM(return new WackyYUVFormatsGM(/* target cs */ false, |
| /* subset */ true, |
| WackyYUVFormatsGM::Type::kFromTextures);) |
| DEF_GM(return new WackyYUVFormatsGM(/* target cs */ true, |
| /* subset */ false, |
| WackyYUVFormatsGM::Type::kFromTextures);) |
| DEF_GM(return new WackyYUVFormatsGM(/* target cs */ false, |
| /* subset */ false, |
| WackyYUVFormatsGM::Type::kFromGenerator);) |
| DEF_GM(return new WackyYUVFormatsGM(/* target cs */ false, |
| /* subset */ false, |
| WackyYUVFormatsGM::Type::kFromPixmaps);) |
| |
| class YUVMakeColorSpaceGM : public GM { |
| public: |
| YUVMakeColorSpaceGM() { |
| this->setBGColor(0xFFCCCCCC); |
| } |
| |
| protected: |
| SkString onShortName() override { |
| return SkString("yuv_make_color_space"); |
| } |
| |
| SkISize onISize() override { |
| int numCols = 4; // (transparent, opaque) x (untagged, tagged) |
| int numRows = 5; // original, YUV, subset, makeNonTextureImage, readPixels |
| return SkISize::Make(numCols * (kTileWidthHeight + kPad) + kPad, |
| numRows * (kTileWidthHeight + kPad) + kPad); |
| } |
| |
| void createBitmaps() { |
| SkPoint origin = { kTileWidthHeight/2.0f, kTileWidthHeight/2.0f }; |
| float outerRadius = kTileWidthHeight/2.0f - 20.0f; |
| float innerRadius = 20.0f; |
| |
| { |
| // transparent |
| SkTDArray<SkRect> circles; |
| SkPath path = create_splat(origin, innerRadius, outerRadius, 1.0f, 5, &circles); |
| fOriginalBMs[0] = make_bitmap(kN32_SkColorType, path, circles, false, false); |
| } |
| |
| { |
| // opaque |
| SkTDArray<SkRect> circles; |
| SkPath path = create_splat(origin, innerRadius, outerRadius, 1.0f, 7, &circles); |
| fOriginalBMs[1] = make_bitmap(kN32_SkColorType, path, circles, true, false); |
| } |
| |
| fTargetColorSpace = SkColorSpace::MakeSRGB()->makeColorSpin(); |
| } |
| |
| bool createImages(GrDirectContext* context) { |
| for (bool opaque : { false, true }) { |
| PlaneData planes; |
| extract_planes(fOriginalBMs[opaque], |
| kJPEG_SkYUVColorSpace, |
| kTopLeft_SkEncodedOrigin, |
| &planes); |
| |
| SkBitmap resultBMs[4]; |
| |
| create_YUV(planes, kAYUV_YUVFormat, resultBMs, opaque); |
| |
| YUVAPlanarConfig planarConfig(kAYUV_YUVFormat, opaque, kTopLeft_SkEncodedOrigin); |
| |
| auto yuvaPixmaps = planarConfig.makeYUVAPixmaps(fOriginalBMs[opaque].dimensions(), |
| kJPEG_Full_SkYUVColorSpace, |
| resultBMs, |
| SK_ARRAY_COUNT(resultBMs)); |
| |
| int i = 0; |
| for (sk_sp<SkColorSpace> cs : {sk_sp<SkColorSpace>(nullptr), |
| SkColorSpace::MakeSRGB()}) { |
| auto lazyYUV = sk_gpu_test::LazyYUVImage::Make(yuvaPixmaps, |
| GrMipmapped::kNo, |
| std::move(cs)); |
| fImages[opaque][i++] = |
| lazyYUV->refImage(context, sk_gpu_test::LazyYUVImage::Type::kFromTextures); |
| } |
| } |
| |
| // Some backends (e.g., Vulkan) require all work be completed for backend textures before |
| // they are deleted. Since we don't know when we'll next have access to a direct context, |
| // flush all the work now. |
| context->flush(); |
| context->submit(true); |
| |
| return true; |
| } |
| |
| DrawResult onGpuSetup(GrDirectContext* dContext, SkString* errorMsg) override { |
| if (!dContext || dContext->abandoned()) { |
| *errorMsg = "DirectContext required to create YUV images"; |
| return DrawResult::kSkip; |
| } |
| |
| this->createBitmaps(); |
| if (!this->createImages(dContext)) { |
| *errorMsg = "Failed to create YUV images"; |
| return DrawResult::kFail; |
| } |
| |
| return DrawResult::kOk; |
| } |
| |
| void onGpuTeardown() override { |
| fImages[0][0] = fImages[0][1] = fImages[1][0] = fImages[1][1] = nullptr; |
| } |
| |
| DrawResult onDraw(SkCanvas* canvas, SkString* msg) override { |
| SkASSERT(fImages[0][0] && fImages[0][1] && fImages[1][0] && fImages[1][1]); |
| |
| auto dContext = GrAsDirectContext(canvas->recordingContext()); |
| if (!dContext) { |
| *msg = "YUV ColorSpace image creation requires a direct context."; |
| return DrawResult::kSkip; |
| } |
| |
| int x = kPad; |
| for (int tagged : { 0, 1 }) { |
| for (int opaque : { 0, 1 }) { |
| int y = kPad; |
| |
| auto raster = fOriginalBMs[opaque].asImage()->makeColorSpace(fTargetColorSpace, |
| nullptr); |
| canvas->drawImage(raster, x, y); |
| y += kTileWidthHeight + kPad; |
| |
| if (fImages[opaque][tagged]) { |
| auto yuv = fImages[opaque][tagged]->makeColorSpace(fTargetColorSpace, dContext); |
| SkASSERT(yuv); |
| SkASSERT(SkColorSpace::Equals(yuv->colorSpace(), fTargetColorSpace.get())); |
| canvas->drawImage(yuv, x, y); |
| y += kTileWidthHeight + kPad; |
| |
| SkIRect bounds = SkIRect::MakeWH(kTileWidthHeight / 2, kTileWidthHeight / 2); |
| auto subset = yuv->makeSubset(bounds, dContext); |
| SkASSERT(subset); |
| canvas->drawImage(subset, x, y); |
| y += kTileWidthHeight + kPad; |
| |
| auto nonTexture = yuv->makeNonTextureImage(); |
| SkASSERT(nonTexture); |
| canvas->drawImage(nonTexture, x, y); |
| y += kTileWidthHeight + kPad; |
| |
| SkBitmap readBack; |
| readBack.allocPixels(yuv->imageInfo()); |
| SkAssertResult(yuv->readPixels(dContext, readBack.pixmap(), 0, 0)); |
| canvas->drawImage(readBack.asImage(), x, y); |
| } |
| x += kTileWidthHeight + kPad; |
| } |
| } |
| return DrawResult::kOk; |
| } |
| |
| private: |
| SkBitmap fOriginalBMs[2]; |
| sk_sp<SkImage> fImages[2][2]; |
| sk_sp<SkColorSpace> fTargetColorSpace; |
| |
| using INHERITED = GM; |
| }; |
| |
| DEF_GM(return new YUVMakeColorSpaceGM();) |
| |
| } // namespace skiagm |
| |
| /////////////// |
| |
| #include "include/effects/SkColorMatrix.h" |
| #include "src/core/SkAutoPixmapStorage.h" |
| #include "tools/Resources.h" |
| |
| static void draw_diff(SkCanvas* canvas, SkScalar x, SkScalar y, |
| const SkImage* a, const SkImage* b) { |
| auto sh = SkShaders::Blend(SkBlendMode::kDifference, |
| a->makeShader(SkSamplingOptions()), |
| b->makeShader(SkSamplingOptions())); |
| SkPaint paint; |
| paint.setShader(sh); |
| canvas->save(); |
| canvas->translate(x, y); |
| canvas->drawRect(SkRect::MakeWH(a->width(), a->height()), paint); |
| |
| SkColorMatrix cm; |
| cm.setScale(64, 64, 64); |
| paint.setShader(sh->makeWithColorFilter(SkColorFilters::Matrix(cm))); |
| canvas->translate(0, a->height()); |
| canvas->drawRect(SkRect::MakeWH(a->width(), a->height()), paint); |
| |
| canvas->restore(); |
| } |
| |
| // Exercises SkColorMatrix_RGB2YUV for yuv colorspaces, showing the planes, and the |
| // resulting (recombined) images (gpu only for now). |
| // |
| class YUVSplitterGM : public skiagm::GM { |
| sk_sp<SkImage> fOrig; |
| |
| public: |
| YUVSplitterGM() {} |
| |
| protected: |
| |
| SkString onShortName() override { |
| return SkString("yuv_splitter"); |
| } |
| |
| SkISize onISize() override { |
| return SkISize::Make(1280, 768); |
| } |
| |
| void onOnceBeforeDraw() override { |
| fOrig = GetResourceAsImage("images/mandrill_256.png"); |
| } |
| |
| void onDraw(SkCanvas* canvas) override { |
| canvas->translate(fOrig->width(), 0); |
| canvas->save(); |
| SkYUVAInfo info; |
| std::array<sk_sp<SkImage>, SkYUVAInfo::kMaxPlanes> planes; |
| for (auto cs : {kRec709_SkYUVColorSpace, |
| kRec601_SkYUVColorSpace, |
| kJPEG_SkYUVColorSpace, |
| kBT2020_SkYUVColorSpace}) { |
| std::tie(planes, info) = sk_gpu_test::MakeYUVAPlanesAsA8(fOrig.get(), |
| cs, |
| SkYUVAInfo::Subsampling::k444, |
| /*recording context*/ nullptr); |
| SkPixmap pixmaps[4]; |
| for (int i = 0; i < info.numPlanes(); ++i) { |
| planes[i]->peekPixels(&pixmaps[i]); |
| } |
| auto yuvaPixmaps = SkYUVAPixmaps::FromExternalPixmaps(info, pixmaps); |
| auto img = SkImage::MakeFromYUVAPixmaps(canvas->recordingContext(), |
| yuvaPixmaps, |
| GrMipMapped::kNo, |
| /* limit to max tex size */ false, |
| /* color space */ nullptr); |
| if (img) { |
| canvas->drawImage(img, 0, 0); |
| draw_diff(canvas, 0, fOrig->height(), fOrig.get(), img.get()); |
| } |
| canvas->translate(fOrig->width(), 0); |
| } |
| canvas->restore(); |
| canvas->translate(-fOrig->width(), 0); |
| int y = 0; |
| for (int i = 0; i < info.numPlanes(); ++i) { |
| canvas->drawImage(planes[i], 0, y); |
| y += planes[i]->height(); |
| } |
| } |
| |
| private: |
| using INHERITED = GM; |
| }; |
| DEF_GM( return new YUVSplitterGM; ) |
