Remove colorspaceinfo
We prefer skcms iccdump, and colorspaceinfo was relying on
soon-to-be-deleted internals of SkColorSpace.
Bug: skia:
Change-Id: I06f6e0365f1f6840339aaf2fb02a7c5aab43b39d
Reviewed-on: https://skia-review.googlesource.com/125748
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
diff --git a/BUILD.gn b/BUILD.gn
index aee0fd1..b117dd2 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -1782,17 +1782,6 @@
]
}
- test_app("colorspaceinfo") {
- sources = [
- "tools/colorspaceinfo.cpp",
- ]
- deps = [
- ":flags",
- ":skia",
- ":tool_utils",
- ]
- }
-
if (!is_ios && target_cpu != "wasm") {
test_app("skiaserve") {
sources = [
diff --git a/tools/colorspaceinfo.cpp b/tools/colorspaceinfo.cpp
deleted file mode 100644
index 2873e46..0000000
--- 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;
-}