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Diffstat (limited to 'tools/colorspaceinfo.cpp')
-rw-r--r-- | tools/colorspaceinfo.cpp | 683 |
1 files changed, 0 insertions, 683 deletions
diff --git a/tools/colorspaceinfo.cpp b/tools/colorspaceinfo.cpp deleted file mode 100644 index 2873e46508..0000000000 --- a/tools/colorspaceinfo.cpp +++ /dev/null @@ -1,683 +0,0 @@ -/* - * Copyright 2016 Google Inc. - * - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - */ - -#include "Resources.h" - -#include "SkBitmap.h" -#include "SkCanvas.h" -#include "SkCodec.h" -#include "SkColorSpacePriv.h" -#include "SkColorSpace_A2B.h" -#include "SkColorSpace_XYZ.h" -#include "SkCommandLineFlags.h" -#include "SkICCPriv.h" -#include "SkImageEncoder.h" -#include "SkMatrix44.h" -#include "SkOSFile.h" -#include "SkRasterPipeline.h" -#include "../src/jumper/SkJumper.h" - -#include "sk_tool_utils.h" - -#include <sstream> -#include <string> -#include <vector> - -DEFINE_string(input, "input.png", "A path to the input image (or icc profile with --icc)."); -DEFINE_string(output, ".", "A path to the output image directory."); -DEFINE_bool(icc, false, "Indicates that the input is an icc profile."); -DEFINE_bool(sRGB_gamut, false, "Draws the sRGB gamut on the gamut visualization."); -DEFINE_bool(adobeRGB, false, "Draws the Adobe RGB gamut on the gamut visualization."); -DEFINE_bool(sRGB_gamma, false, "Draws the sRGB gamma on all gamma output images."); -DEFINE_string(uncorrected, "", "A path to reencode the uncorrected input image."); - - -//------------------------------------------------------------------------------------------------- -//------------------------------------ Gamma visualizations --------------------------------------- - -static const char* kRGBChannelNames[3] = { - "Red ", - "Green", - "Blue " -}; -static const SkColor kRGBChannelColors[3] = { - SkColorSetARGB(128, 255, 0, 0), - SkColorSetARGB(128, 0, 255, 0), - SkColorSetARGB(128, 0, 0, 255) -}; - -static const char* kGrayChannelNames[1] = { "Gray"}; -static const SkColor kGrayChannelColors[1] = { SkColorSetRGB(128, 128, 128) }; - -static const char* kCMYKChannelNames[4] = { - "Cyan ", - "Magenta", - "Yellow ", - "Black " -}; -static const SkColor kCMYKChannelColors[4] = { - SkColorSetARGB(128, 0, 255, 255), - SkColorSetARGB(128, 255, 0, 255), - SkColorSetARGB(128, 255, 255, 0), - SkColorSetARGB(128, 16, 16, 16) -}; - -static const char*const*const kChannelNames[4] = { - kGrayChannelNames, - kRGBChannelNames, - kRGBChannelNames, - kCMYKChannelNames -}; -static const SkColor*const kChannelColors[4] = { - kGrayChannelColors, - kRGBChannelColors, - kRGBChannelColors, - kCMYKChannelColors -}; - -static void dump_transfer_fn(SkGammaNamed gammaNamed) { - switch (gammaNamed) { - case kSRGB_SkGammaNamed: - SkDebugf("Transfer Function: sRGB\n"); - return; - case k2Dot2Curve_SkGammaNamed: - SkDebugf("Exponential Transfer Function: Exponent 2.2\n"); - return; - case kLinear_SkGammaNamed: - SkDebugf("Transfer Function: Linear\n"); - return; - default: - break; - } - -} - -static constexpr int kGammaImageWidth = 500; -static constexpr int kGammaImageHeight = 500; - -static void dump_transfer_fn(const SkGammas& gammas) { - SkASSERT(gammas.channels() <= 4); - const char*const*const channels = kChannelNames[gammas.channels() - 1]; - for (int i = 0; i < gammas.channels(); i++) { - if (gammas.isNamed(i)) { - switch (gammas.data(i).fNamed) { - case kSRGB_SkGammaNamed: - SkDebugf("%s Transfer Function: sRGB\n", channels[i]); - return; - case k2Dot2Curve_SkGammaNamed: - SkDebugf("%s Transfer Function: Exponent 2.2\n", channels[i]); - return; - case kLinear_SkGammaNamed: - SkDebugf("%s Transfer Function: Linear\n", channels[i]); - return; - default: - SkASSERT(false); - continue; - } - } else if (gammas.isValue(i)) { - SkDebugf("%s Transfer Function: Exponent %.3f\n", channels[i], gammas.data(i).fValue); - } else if (gammas.isParametric(i)) { - const SkColorSpaceTransferFn& fn = gammas.data(i).params(&gammas); - SkDebugf("%s Transfer Function: Parametric A = %.3f, B = %.3f, C = %.3f, D = %.3f, " - "E = %.3f, F = %.3f, G = %.3f\n", channels[i], fn.fA, fn.fB, fn.fC, fn.fD, - fn.fE, fn.fF, fn.fG); - } else { - SkASSERT(gammas.isTable(i)); - SkDebugf("%s Transfer Function: Table (%d entries)\n", channels[i], - gammas.data(i).fTable.fSize); - } - } -} - -static inline float parametric(const SkColorSpaceTransferFn& fn, float x) { - return x >= fn.fD ? powf(fn.fA*x + fn.fB, fn.fG) + fn.fE - : fn.fC*x + fn.fF; -} - -static void draw_transfer_fn(SkCanvas* canvas, SkGammaNamed gammaNamed, const SkGammas* gammas, - SkColor color) { - SkColorSpaceTransferFn fn[4]; - struct TableInfo { - const float* fTable; - int fSize; - }; - TableInfo table[4]; - bool isTable[4] = {false, false, false, false}; - const int channels = gammas ? gammas->channels() : 1; - SkASSERT(channels <= 4); - if (kNonStandard_SkGammaNamed != gammaNamed) { - dump_transfer_fn(gammaNamed); - for (int i = 0; i < channels; ++i) { - named_to_parametric(&fn[i], gammaNamed); - } - } else { - SkASSERT(gammas); - dump_transfer_fn(*gammas); - for (int i = 0; i < channels; ++i) { - if (gammas->isTable(i)) { - table[i].fTable = gammas->table(i); - table[i].fSize = gammas->data(i).fTable.fSize; - isTable[i] = true; - } else { - switch (gammas->type(i)) { - case SkGammas::Type::kNamed_Type: - named_to_parametric(&fn[i], gammas->data(i).fNamed); - break; - case SkGammas::Type::kValue_Type: - value_to_parametric(&fn[i], gammas->data(i).fValue); - break; - case SkGammas::Type::kParam_Type: - fn[i] = gammas->params(i); - break; - default: - SkASSERT(false); - } - } - } - } - SkPaint paint; - paint.setStyle(SkPaint::kStroke_Style); - paint.setColor(color); - paint.setStrokeWidth(2.0f); - // note: gamma has positive values going up in this image so this origin is - // the bottom left and we must subtract y instead of adding. - const float gap = 16.0f; - const float gammaWidth = kGammaImageWidth - 2 * gap; - const float gammaHeight = kGammaImageHeight - 2 * gap; - // gamma origin point - const float ox = gap; - const float oy = gap + gammaHeight; - for (int i = 0; i < channels; ++i) { - if (kNonStandard_SkGammaNamed == gammaNamed) { - paint.setColor(kChannelColors[channels - 1][i]); - } else { - paint.setColor(color); - } - if (isTable[i]) { - auto tx = [&table,i](int index) { - return index / (table[i].fSize - 1.0f); - }; - for (int ti = 1; ti < table[i].fSize; ++ti) { - canvas->drawLine(ox + gammaWidth * tx(ti - 1), - oy - gammaHeight * table[i].fTable[ti - 1], - ox + gammaWidth * tx(ti), - oy - gammaHeight * table[i].fTable[ti], - paint); - } - } else { - const float step = 0.01f; - float yPrev = parametric(fn[i], 0.0f); - for (float x = step; x <= 1.0f; x += step) { - const float y = parametric(fn[i], x); - canvas->drawLine(ox + gammaWidth * (x - step), oy - gammaHeight * yPrev, - ox + gammaWidth * x, oy - gammaHeight * y, - paint); - yPrev = y; - } - } - } - paint.setColor(0xFF000000); - paint.setStrokeWidth(3.0f); - canvas->drawRect({ ox, oy - gammaHeight, ox + gammaWidth, oy }, paint); -} - -//------------------------------------------------------------------------------------------------- -//------------------------------------ CLUT visualizations ---------------------------------------- -static void dump_clut(const SkColorLookUpTable& clut) { - SkDebugf("CLUT: "); - for (int i = 0; i < clut.inputChannels(); ++i) { - SkDebugf("[%d]", clut.gridPoints(i)); - } - SkDebugf(" -> [%d]\n", clut.outputChannels()); -} - -constexpr int kClutGap = 8; -constexpr float kClutCanvasSize = 2000; - -static inline int usedGridPoints(const SkColorLookUpTable& clut, int dimension) { - const int gp = clut.gridPoints(dimension); - return gp <= 16 ? gp : 16; -} - -// how many rows of cross-section cuts to display -static inline int cut_rows(const SkColorLookUpTable& clut, int dimOrder[4]) { - // and vertical ones for the 4th dimension (if applicable) - return clut.inputChannels() >= 4 ? usedGridPoints(clut, dimOrder[3]) : 1; -} - -// how many columns of cross-section cuts to display -static inline int cut_cols(const SkColorLookUpTable& clut, int dimOrder[4]) { - // do horizontal cuts for the 3rd dimension (if applicable) - return clut.inputChannels() >= 3 ? usedGridPoints(clut, dimOrder[2]) : 1; -} - -// gets the width/height to use for cross-sections of a CLUT -static int cut_size(const SkColorLookUpTable& clut, int dimOrder[4]) { - const int rows = cut_rows(clut, dimOrder); - const int cols = cut_cols(clut, dimOrder); - // make sure the cross-section CLUT cuts are square still by using the - // smallest of the width/height, then adjust the gaps between accordingly - const int cutWidth = (kClutCanvasSize - kClutGap * (1 + cols)) / cols; - const int cutHeight = (kClutCanvasSize - kClutGap * (1 + rows)) / rows; - return cutWidth < cutHeight ? cutWidth : cutHeight; -} - -static void clut_interp(const SkColorLookUpTable& clut, float out[3], const float in[4]) { - // This is kind of a toy implementation. - // You generally wouldn't want to do this 1 pixel at a time. - - SkJumper_ColorLookupTableCtx ctx; - ctx.table = clut.table(); - for (int i = 0; i < clut.inputChannels(); i++) { - ctx.limits[i] = clut.gridPoints(i); - } - - SkSTArenaAlloc<256> alloc; - SkRasterPipeline p(&alloc); - p.append_constant_color(&alloc, in); - p.append(clut.inputChannels() == 3 ? SkRasterPipeline::clut_3D - : SkRasterPipeline::clut_4D, &ctx); - p.append(SkRasterPipeline::clamp_0); - p.append(SkRasterPipeline::clamp_1); - p.append(SkRasterPipeline::store_f32, &out); - p.run(0,0, 1,1); -} - -static void draw_clut(SkCanvas* canvas, const SkColorLookUpTable& clut, int dimOrder[4]) { - dump_clut(clut); - - const int cutSize = cut_size(clut, dimOrder); - const int rows = cut_rows(clut, dimOrder); - const int cols = cut_cols(clut, dimOrder); - const int cutHorizGap = (kClutCanvasSize - cutSize * cols) / (1 + cols); - const int cutVertGap = (kClutCanvasSize - cutSize * rows) / (1 + rows); - - SkPaint paint; - for (int row = 0; row < rows; ++row) { - for (int col = 0; col < cols; ++col) { - // make sure to move at least one pixel, but otherwise move per-gridpoint - const float xStep = 1.0f / (SkTMin(cutSize, clut.gridPoints(dimOrder[0])) - 1); - const float yStep = 1.0f / (SkTMin(cutSize, clut.gridPoints(dimOrder[1])) - 1); - const float ox = clut.inputChannels() >= 3 ? (1 + col) * cutHorizGap + col * cutSize - : kClutGap; - const float oy = clut.inputChannels() >= 4 ? (1 + row) * cutVertGap + row * cutSize - : kClutGap; - // for each cross-section cut, draw a bunch of squares whose colour is the top-left's - // colour in the CLUT (usually this will just draw the gridpoints) - for (float x = 0.0f; x < 1.0f; x += xStep) { - for (float y = 0.0f; y < 1.0f; y += yStep) { - const float z = col / (cols - 1.0f); - const float w = row / (rows - 1.0f); - const float input[4] = {x, y, z, w}; - float output[3]; - clut_interp(clut, output, input); - paint.setColor(SkColorSetRGB(255*output[0], 255*output[1], 255*output[2])); - canvas->drawRect(SkRect::MakeLTRB(ox + cutSize * x, oy + cutSize * y, - ox + cutSize * (x + xStep), - oy + cutSize * (y + yStep)), paint); - } - } - } - } -} - - -//------------------------------------------------------------------------------------------------- -//------------------------------------ Gamut visualizations --------------------------------------- -static void dump_matrix(const SkMatrix44& m) { - for (int r = 0; r < 4; ++r) { - SkDebugf("|"); - for (int c = 0; c < 4; ++c) { - SkDebugf(" %f ", m.get(r, c)); - } - SkDebugf("|\n"); - } -} - -/** - * Loads the triangular gamut as a set of three points. - */ -static void load_gamut(SkPoint rgb[], const SkMatrix44& xyz) { - // rx = rX / (rX + rY + rZ) - // ry = rX / (rX + rY + rZ) - // gx, gy, bx, and gy are calulcated similarly. - float rSum = xyz.get(0, 0) + xyz.get(1, 0) + xyz.get(2, 0); - float gSum = xyz.get(0, 1) + xyz.get(1, 1) + xyz.get(2, 1); - float bSum = xyz.get(0, 2) + xyz.get(1, 2) + xyz.get(2, 2); - rgb[0].fX = xyz.get(0, 0) / rSum; - rgb[0].fY = xyz.get(1, 0) / rSum; - rgb[1].fX = xyz.get(0, 1) / gSum; - rgb[1].fY = xyz.get(1, 1) / gSum; - rgb[2].fX = xyz.get(0, 2) / bSum; - rgb[2].fY = xyz.get(1, 2) / bSum; -} - -/** - * Calculates the area of the triangular gamut. - */ -static float calculate_area(SkPoint abc[]) { - SkPoint a = abc[0]; - SkPoint b = abc[1]; - SkPoint c = abc[2]; - return 0.5f * SkTAbs(a.fX*b.fY + b.fX*c.fY - a.fX*c.fY - c.fX*b.fY - b.fX*a.fY); -} - -static void draw_gamut(SkCanvas* canvas, const SkMatrix44& xyz, const char* name, SkColor color, - bool label) { - // Report the XYZ values. - SkDebugf("%s\n", name); - SkDebugf(" R G B\n"); - SkDebugf("X %.3f %.3f %.3f\n", xyz.get(0, 0), xyz.get(0, 1), xyz.get(0, 2)); - SkDebugf("Y %.3f %.3f %.3f\n", xyz.get(1, 0), xyz.get(1, 1), xyz.get(1, 2)); - SkDebugf("Z %.3f %.3f %.3f\n", xyz.get(2, 0), xyz.get(2, 1), xyz.get(2, 2)); - - // Calculate the points in the gamut from the XYZ values. - SkPoint rgb[4]; - load_gamut(rgb, xyz); - - // Report the area of the gamut. - SkDebugf("Area of Gamut: %.3f\n\n", calculate_area(rgb)); - - // Magic constants that help us place the gamut triangles in the appropriate position - // on the canvas. - const float xScale = 2071.25f; // Num pixels from 0 to 1 in x - const float xOffset = 241.0f; // Num pixels until start of x-axis - const float yScale = 2067.78f; // Num pixels from 0 to 1 in y - const float yOffset = -144.78f; // Num pixels until start of y-axis - // (negative because y extends beyond image bounds) - - // Now transform the points so they can be drawn on our canvas. - // Note that y increases as we move down the canvas. - rgb[0].fX = xOffset + xScale * rgb[0].fX; - rgb[0].fY = yOffset + yScale * (1.0f - rgb[0].fY); - rgb[1].fX = xOffset + xScale * rgb[1].fX; - rgb[1].fY = yOffset + yScale * (1.0f - rgb[1].fY); - rgb[2].fX = xOffset + xScale * rgb[2].fX; - rgb[2].fY = yOffset + yScale * (1.0f - rgb[2].fY); - - // Repeat the first point to connect the polygon. - rgb[3] = rgb[0]; - SkPaint paint; - paint.setColor(color); - paint.setStrokeWidth(6.0f); - paint.setTextSize(75.0f); - canvas->drawPoints(SkCanvas::kPolygon_PointMode, 4, rgb, paint); - if (label) { - canvas->drawString("R", rgb[0].fX + 5.0f, rgb[0].fY + 75.0f, paint); - canvas->drawString("G", rgb[1].fX + 5.0f, rgb[1].fY - 5.0f, paint); - canvas->drawString("B", rgb[2].fX - 75.0f, rgb[2].fY - 5.0f, paint); - } -} - - -//------------------------------------------------------------------------------------------------- -//----------------------------------------- Main code --------------------------------------------- -static SkBitmap transparentBitmap(int width, int height) { - SkBitmap bitmap; - bitmap.allocN32Pixels(width, height); - bitmap.eraseColor(SkColorSetARGB(0, 0, 0, 0)); - return bitmap; -} - -class OutputCanvas { -public: - OutputCanvas(SkBitmap&& bitmap) - :fBitmap(bitmap) - ,fCanvas(fBitmap) - {} - - bool save(std::vector<std::string>* output, const std::string& filename) { - // Finally, encode the result to the output file. - sk_sp<SkData> out = sk_tool_utils::EncodeImageToData(fBitmap, SkEncodedImageFormat::kPNG, - 100); - if (!out) { - SkDebugf("Failed to encode %s output.\n", filename.c_str()); - return false; - } - SkFILEWStream stream(filename.c_str()); - if (!stream.write(out->data(), out->size())) { - SkDebugf("Failed to write %s output.\n", filename.c_str()); - return false; - } - // record name of canvas - output->push_back(filename); - return true; - } - - SkCanvas* canvas() { return &fCanvas; } - -private: - SkBitmap fBitmap; - SkCanvas fCanvas; -}; - -int main(int argc, char** argv) { - SkCommandLineFlags::SetUsage( - "Usage: colorspaceinfo --input <path to input image (or icc profile with --icc)> " - "--output <directory to output images> " - "--icc <indicates that the input is an icc profile>" - "--sRGB_gamut <draw canonical sRGB gamut> " - "--adobeRGB <draw canonical Adobe RGB gamut> " - "--sRGB_gamma <draw sRGB gamma> " - "--uncorrected <path to reencoded, uncorrected input image>\n" - "Description: Writes visualizations of the color space to the output image(s) ." - "Also, if a path is provided, writes uncorrected bytes to an unmarked " - "png, for comparison with the input image.\n"); - SkCommandLineFlags::Parse(argc, argv); - const char* input = FLAGS_input[0]; - const char* output = FLAGS_output[0]; - if (!input || !output) { - SkCommandLineFlags::PrintUsage(); - return -1; - } - - sk_sp<SkData> data(SkData::MakeFromFileName(input)); - if (!data) { - SkDebugf("Cannot find input image.\n"); - return -1; - } - - std::unique_ptr<SkCodec> codec = nullptr; - sk_sp<SkColorSpace> colorSpace = nullptr; - if (FLAGS_icc) { - colorSpace = SkColorSpace::MakeICC(data->bytes(), data->size()); - } else { - codec = SkCodec::MakeFromData(data); - colorSpace = sk_ref_sp(codec->getInfo().colorSpace()); - SkDebugf("SkCodec would naturally decode as colorType=%s\n", - sk_tool_utils::colortype_name(codec->getInfo().colorType())); - } - - if (!colorSpace) { - SkDebugf("Cannot create codec or icc profile from input file.\n"); - return -1; - } - - { - SkColorSpaceTransferFn colorSpaceTransferFn; - SkMatrix44 toXYZD50(SkMatrix44::kIdentity_Constructor); - if (colorSpace->isNumericalTransferFn(&colorSpaceTransferFn) && - colorSpace->toXYZD50(&toXYZD50)) { - SkString description = SkICCGetColorProfileTag(colorSpaceTransferFn, toXYZD50); - SkDebugf("Color Profile Description: \"%s\"\n", description.c_str()); - } - } - - // TODO: command line tweaking of this order - int dimOrder[4] = {0, 1, 2, 3}; - - std::vector<std::string> outputFilenames; - - auto createOutputFilename = [output](const char* category, int index) -> std::string { - std::stringstream ss; - ss << output << '/' << category << '_' << index << ".png"; - return ss.str(); - }; - - if (colorSpace->toXYZD50()) { - SkDebugf("XYZ/TRC color space\n"); - - // Load a graph of the CIE XYZ color gamut. - SkBitmap gamutCanvasBitmap; - if (!GetResourceAsBitmap("images/gamut.png", &gamutCanvasBitmap)) { - SkDebugf("Program failure (could not load gamut.png).\n"); - return -1; - } - OutputCanvas gamutCanvas(std::move(gamutCanvasBitmap)); - // Draw the sRGB gamut if requested. - if (FLAGS_sRGB_gamut) { - sk_sp<SkColorSpace> sRGBSpace = SkColorSpace::MakeSRGB(); - const SkMatrix44* mat = sRGBSpace->toXYZD50(); - SkASSERT(mat); - draw_gamut(gamutCanvas.canvas(), *mat, "sRGB", 0xFFFF9394, false); - } - - // Draw the Adobe RGB gamut if requested. - if (FLAGS_adobeRGB) { - sk_sp<SkColorSpace> adobeRGBSpace = SkColorSpace::MakeRGB( - SkColorSpace::kSRGB_RenderTargetGamma, SkColorSpace::kAdobeRGB_Gamut); - const SkMatrix44* mat = adobeRGBSpace->toXYZD50(); - SkASSERT(mat); - draw_gamut(gamutCanvas.canvas(), *mat, "Adobe RGB", 0xFF31a9e1, false); - } - const SkMatrix44* mat = colorSpace->toXYZD50(); - SkASSERT(mat); - auto xyz = static_cast<SkColorSpace_XYZ*>(colorSpace.get()); - draw_gamut(gamutCanvas.canvas(), *mat, input, 0xFF000000, true); - if (!gamutCanvas.save(&outputFilenames, createOutputFilename("gamut", 0))) { - return -1; - } - - OutputCanvas gammaCanvas(transparentBitmap(kGammaImageWidth, kGammaImageHeight)); - if (FLAGS_sRGB_gamma) { - draw_transfer_fn(gammaCanvas.canvas(), kSRGB_SkGammaNamed, nullptr, 0xFFFF9394); - } - draw_transfer_fn(gammaCanvas.canvas(), colorSpace->gammaNamed(), xyz->gammas(), 0xFF000000); - if (!gammaCanvas.save(&outputFilenames, createOutputFilename("gamma", 0))) { - return -1; - } - } else { - SkDebugf("A2B color space"); - SkColorSpace_A2B* a2b = static_cast<SkColorSpace_A2B*>(colorSpace.get()); - SkDebugf("Conversion type: "); - switch (a2b->iccType()) { - case SkColorSpace::kRGB_Type: - SkDebugf("RGB"); - break; - case SkColorSpace::kCMYK_Type: - SkDebugf("CMYK"); - break; - case SkColorSpace::kGray_Type: - SkDebugf("Gray"); - break; - default: - SkASSERT(false); - break; - - } - SkDebugf(" -> "); - switch (a2b->pcs()) { - case SkColorSpace_A2B::PCS::kXYZ: - SkDebugf("XYZ\n"); - break; - case SkColorSpace_A2B::PCS::kLAB: - SkDebugf("LAB\n"); - break; - } - int clutCount = 0; - int gammaCount = 0; - for (int i = 0; i < a2b->count(); ++i) { - const SkColorSpace_A2B::Element& e = a2b->element(i); - switch (e.type()) { - case SkColorSpace_A2B::Element::Type::kGammaNamed: { - OutputCanvas gammaCanvas(transparentBitmap(kGammaImageWidth, - kGammaImageHeight)); - if (FLAGS_sRGB_gamma) { - draw_transfer_fn(gammaCanvas.canvas(), kSRGB_SkGammaNamed, nullptr, - 0xFFFF9394); - } - draw_transfer_fn(gammaCanvas.canvas(), e.gammaNamed(), nullptr, - 0xFF000000); - if (!gammaCanvas.save(&outputFilenames, - createOutputFilename("gamma", gammaCount++))) { - return -1; - } - } - break; - case SkColorSpace_A2B::Element::Type::kGammas: { - OutputCanvas gammaCanvas(transparentBitmap(kGammaImageWidth, - kGammaImageHeight)); - if (FLAGS_sRGB_gamma) { - draw_transfer_fn(gammaCanvas.canvas(), kSRGB_SkGammaNamed, nullptr, - 0xFFFF9394); - } - draw_transfer_fn(gammaCanvas.canvas(), kNonStandard_SkGammaNamed, - &e.gammas(), 0xFF000000); - if (!gammaCanvas.save(&outputFilenames, - createOutputFilename("gamma", gammaCount++))) { - return -1; - } - } - break; - case SkColorSpace_A2B::Element::Type::kCLUT: { - const SkColorLookUpTable& clut = e.colorLUT(); - const int cutSize = cut_size(clut, dimOrder); - const int clutWidth = clut.inputChannels() >= 3 ? kClutCanvasSize - : 2 * kClutGap + cutSize; - const int clutHeight = clut.inputChannels() >= 4 ? kClutCanvasSize - : 2 * kClutGap + cutSize; - OutputCanvas clutCanvas(transparentBitmap(clutWidth, clutHeight)); - draw_clut(clutCanvas.canvas(), e.colorLUT(), dimOrder); - if (!clutCanvas.save(&outputFilenames, - createOutputFilename("clut", clutCount++))) { - return -1; - } - } - break; - case SkColorSpace_A2B::Element::Type::kMatrix: - dump_matrix(e.matrix()); - break; - } - } - } - - // marker to tell the web-tool the names of all images output - SkDebugf("=========\n"); - for (const std::string& filename : outputFilenames) { - SkDebugf("%s\n", filename.c_str()); - } - if (!FLAGS_icc) { - SkDebugf("%s\n", input); - } - // Also, if requested, decode and reencode the uncorrected input image. - if (!FLAGS_uncorrected.isEmpty() && !FLAGS_icc) { - SkBitmap bitmap; - int width = codec->getInfo().width(); - int height = codec->getInfo().height(); - bitmap.allocN32Pixels(width, height, kOpaque_SkAlphaType == codec->getInfo().alphaType()); - SkImageInfo decodeInfo = SkImageInfo::MakeN32(width, height, kUnpremul_SkAlphaType); - if (SkCodec::kSuccess != codec->getPixels(decodeInfo, bitmap.getPixels(), - bitmap.rowBytes())) { - SkDebugf("Could not decode input image.\n"); - return -1; - } - sk_sp<SkData> out = sk_tool_utils::EncodeImageToData(bitmap, SkEncodedImageFormat::kPNG, - 100); - if (!out) { - SkDebugf("Failed to encode uncorrected image.\n"); - return -1; - } - SkFILEWStream bitmapStream(FLAGS_uncorrected[0]); - if (!bitmapStream.write(out->data(), out->size())) { - SkDebugf("Failed to write uncorrected image output.\n"); - return -1; - } - SkDebugf("%s\n", FLAGS_uncorrected[0]); - } - - return 0; -} |