5a625e08f0
Bug: skia: Change-Id: I826190aa15cf42a3ca7f3c7d5271ead5b514c116 Reviewed-on: https://skia-review.googlesource.com/32220 Reviewed-by: Florin Malita <fmalita@chromium.org> Commit-Queue: Mike Reed <reed@google.com>
597 lines
19 KiB
C++
597 lines
19 KiB
C++
/*
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* Copyright 2014 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "sk_tool_utils.h"
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#include "sk_tool_utils_flags.h"
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#include "Resources.h"
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#include "SkBitmap.h"
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#include "SkCanvas.h"
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#include "SkCommonFlags.h"
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#include "SkFontMgr.h"
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#include "SkFontStyle.h"
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#include "SkPixelRef.h"
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#include "SkPM4f.h"
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#include "SkPoint3.h"
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#include "SkShader.h"
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#include "SkTestScalerContext.h"
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#include "SkTextBlob.h"
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DEFINE_bool(portableFonts, false, "Use portable fonts");
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namespace sk_tool_utils {
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/* these are the default fonts chosen by Chrome for serif, sans-serif, and monospace */
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static const char* gStandardFontNames[][3] = {
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{ "Times", "Helvetica", "Courier" }, // Mac
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{ "Times New Roman", "Helvetica", "Courier" }, // iOS
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{ "Times New Roman", "Arial", "Courier New" }, // Win
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{ "Times New Roman", "Arial", "Monospace" }, // Ubuntu
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{ "serif", "sans-serif", "monospace" }, // Android
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{ "Tinos", "Arimo", "Cousine" } // ChromeOS
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};
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const char* platform_font_name(const char* name) {
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SkString platform = major_platform_os_name();
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int index;
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if (!strcmp(name, "serif")) {
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index = 0;
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} else if (!strcmp(name, "san-serif")) {
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index = 1;
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} else if (!strcmp(name, "monospace")) {
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index = 2;
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} else {
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return name;
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}
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if (platform.equals("Mac")) {
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return gStandardFontNames[0][index];
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}
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if (platform.equals("iOS")) {
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return gStandardFontNames[1][index];
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}
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if (platform.equals("Win")) {
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return gStandardFontNames[2][index];
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}
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if (platform.equals("Ubuntu") || platform.equals("Debian")) {
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return gStandardFontNames[3][index];
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}
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if (platform.equals("Android")) {
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return gStandardFontNames[4][index];
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}
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if (platform.equals("ChromeOS")) {
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return gStandardFontNames[5][index];
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}
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return name;
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}
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const char* platform_os_emoji() {
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const char* osName = platform_os_name();
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if (!strcmp(osName, "Android") || !strcmp(osName, "Ubuntu") || !strcmp(osName, "Debian")) {
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return "CBDT";
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}
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if (!strncmp(osName, "Mac", 3) || !strncmp(osName, "iOS", 3)) {
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return "SBIX";
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}
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if (!strncmp(osName, "Win", 3)) {
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return "COLR";
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}
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return "";
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}
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sk_sp<SkTypeface> emoji_typeface() {
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if (!strcmp(sk_tool_utils::platform_os_emoji(), "CBDT")) {
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return MakeResourceAsTypeface("/fonts/Funkster.ttf");
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}
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if (!strcmp(sk_tool_utils::platform_os_emoji(), "SBIX")) {
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return SkTypeface::MakeFromName("Apple Color Emoji", SkFontStyle());
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}
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if (!strcmp(sk_tool_utils::platform_os_emoji(), "COLR")) {
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sk_sp<SkFontMgr> fm(SkFontMgr::RefDefault());
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const char *colorEmojiFontName = "Segoe UI Emoji";
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sk_sp<SkTypeface> typeface(fm->matchFamilyStyle(colorEmojiFontName, SkFontStyle()));
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if (typeface) {
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return typeface;
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}
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sk_sp<SkTypeface> fallback(fm->matchFamilyStyleCharacter(
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colorEmojiFontName, SkFontStyle(), nullptr /* bcp47 */, 0 /* bcp47Count */,
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0x1f4b0 /* character: 💰 */));
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if (fallback) {
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return fallback;
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}
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// If we don't have Segoe UI Emoji and can't find a fallback, try Segoe UI Symbol.
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// Windows 7 does not have Segoe UI Emoji; Segoe UI Symbol has the (non - color) emoji.
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return SkTypeface::MakeFromName("Segoe UI Symbol", SkFontStyle());
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}
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return nullptr;
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}
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const char* emoji_sample_text() {
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if (!strcmp(sk_tool_utils::platform_os_emoji(), "CBDT")) {
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return "Hamburgefons";
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}
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if (!strcmp(sk_tool_utils::platform_os_emoji(), "SBIX") ||
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!strcmp(sk_tool_utils::platform_os_emoji(), "COLR"))
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{
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return "\xF0\x9F\x92\xB0" "\xF0\x9F\x8F\xA1" "\xF0\x9F\x8E\x85" // 💰🏡🎅
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"\xF0\x9F\x8D\xAA" "\xF0\x9F\x8D\x95" "\xF0\x9F\x9A\x80" // 🍪🍕🚀
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"\xF0\x9F\x9A\xBB" "\xF0\x9F\x92\xA9" "\xF0\x9F\x93\xB7" // 🚻💩📷
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"\xF0\x9F\x93\xA6" // 📦
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"\xF0\x9F\x87\xBA" "\xF0\x9F\x87\xB8" "\xF0\x9F\x87\xA6"; // 🇺🇸🇦
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}
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return "";
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}
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const char* platform_os_name() {
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for (int index = 0; index < FLAGS_key.count(); index += 2) {
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if (!strcmp("os", FLAGS_key[index])) {
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return FLAGS_key[index + 1];
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}
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}
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// when running SampleApp or dm without a --key pair, omit the platform name
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return "";
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}
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// omit version number in returned value
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SkString major_platform_os_name() {
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SkString name;
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for (int index = 0; index < FLAGS_key.count(); index += 2) {
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if (!strcmp("os", FLAGS_key[index])) {
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const char* platform = FLAGS_key[index + 1];
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const char* end = platform;
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while (*end && (*end < '0' || *end > '9')) {
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++end;
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}
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name.append(platform, end - platform);
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break;
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}
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}
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return name;
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}
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const char* platform_extra_config(const char* config) {
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for (int index = 0; index < FLAGS_key.count(); index += 2) {
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if (!strcmp("extra_config", FLAGS_key[index]) && !strcmp(config, FLAGS_key[index + 1])) {
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return config;
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}
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}
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return "";
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}
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const char* colortype_name(SkColorType ct) {
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switch (ct) {
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case kUnknown_SkColorType: return "Unknown";
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case kAlpha_8_SkColorType: return "Alpha_8";
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case kARGB_4444_SkColorType: return "ARGB_4444";
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case kRGB_565_SkColorType: return "RGB_565";
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case kRGBA_8888_SkColorType: return "RGBA_8888";
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case kBGRA_8888_SkColorType: return "BGRA_8888";
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case kRGBA_F16_SkColorType: return "RGBA_F16";
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default:
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SkASSERT(false);
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return "unexpected colortype";
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}
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}
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SkColor color_to_565(SkColor color) {
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SkPMColor pmColor = SkPreMultiplyColor(color);
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U16CPU color16 = SkPixel32ToPixel16(pmColor);
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return SkPixel16ToColor(color16);
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}
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sk_sp<SkTypeface> create_portable_typeface(const char* name, SkFontStyle style) {
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return create_font(name, style);
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}
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void set_portable_typeface(SkPaint* paint, const char* name, SkFontStyle style) {
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paint->setTypeface(create_font(name, style));
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}
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void write_pixels(SkCanvas* canvas, const SkBitmap& bitmap, int x, int y,
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SkColorType colorType, SkAlphaType alphaType) {
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SkBitmap tmp(bitmap);
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const SkImageInfo info = SkImageInfo::Make(tmp.width(), tmp.height(), colorType, alphaType);
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canvas->writePixels(info, tmp.getPixels(), tmp.rowBytes(), x, y);
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}
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sk_sp<SkShader> create_checkerboard_shader(SkColor c1, SkColor c2, int size) {
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SkBitmap bm;
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bm.allocPixels(SkImageInfo::MakeS32(2 * size, 2 * size, kPremul_SkAlphaType));
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bm.eraseColor(c1);
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bm.eraseArea(SkIRect::MakeLTRB(0, 0, size, size), c2);
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bm.eraseArea(SkIRect::MakeLTRB(size, size, 2 * size, 2 * size), c2);
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return SkShader::MakeBitmapShader(
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bm, SkShader::kRepeat_TileMode, SkShader::kRepeat_TileMode);
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}
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SkBitmap create_checkerboard_bitmap(int w, int h, SkColor c1, SkColor c2, int checkSize) {
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SkBitmap bitmap;
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bitmap.allocPixels(SkImageInfo::MakeS32(w, h, kPremul_SkAlphaType));
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SkCanvas canvas(bitmap);
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sk_tool_utils::draw_checkerboard(&canvas, c1, c2, checkSize);
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return bitmap;
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}
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void draw_checkerboard(SkCanvas* canvas, SkColor c1, SkColor c2, int size) {
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SkPaint paint;
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paint.setShader(create_checkerboard_shader(c1, c2, size));
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paint.setBlendMode(SkBlendMode::kSrc);
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canvas->drawPaint(paint);
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}
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SkBitmap create_string_bitmap(int w, int h, SkColor c, int x, int y,
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int textSize, const char* str) {
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SkBitmap bitmap;
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bitmap.allocN32Pixels(w, h);
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SkCanvas canvas(bitmap);
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SkPaint paint;
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paint.setAntiAlias(true);
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sk_tool_utils::set_portable_typeface(&paint);
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paint.setColor(c);
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paint.setTextSize(SkIntToScalar(textSize));
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canvas.clear(0x00000000);
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canvas.drawString(str, SkIntToScalar(x), SkIntToScalar(y), paint);
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// Tag data as sRGB (without doing any color space conversion). Color-space aware configs
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// will process this correctly but legacy configs will render as if this returned N32.
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SkBitmap result;
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result.setInfo(SkImageInfo::MakeS32(w, h, kPremul_SkAlphaType));
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result.setPixelRef(sk_ref_sp(bitmap.pixelRef()), 0, 0);
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return result;
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}
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void add_to_text_blob(SkTextBlobBuilder* builder, const char* text, const SkPaint& origPaint,
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SkScalar x, SkScalar y) {
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SkPaint paint(origPaint);
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SkTDArray<uint16_t> glyphs;
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size_t len = strlen(text);
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glyphs.append(paint.textToGlyphs(text, len, nullptr));
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paint.textToGlyphs(text, len, glyphs.begin());
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paint.setTextEncoding(SkPaint::kGlyphID_TextEncoding);
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const SkTextBlobBuilder::RunBuffer& run = builder->allocRun(paint, glyphs.count(), x, y,
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nullptr);
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memcpy(run.glyphs, glyphs.begin(), glyphs.count() * sizeof(uint16_t));
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}
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#if !defined(__clang__) && defined(_MSC_VER)
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// MSVC takes ~2 minutes to compile this function with optimization.
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// We don't really care to wait that long for this function.
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#pragma optimize("", off)
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#endif
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void make_big_path(SkPath& path) {
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#include "BigPathBench.inc"
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}
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static float gaussian2d_value(int x, int y, float sigma) {
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// don't bother with the scale term since we're just going to normalize the
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// kernel anyways
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float temp = expf(-(x*x + y*y)/(2*sigma*sigma));
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return temp;
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}
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static float* create_2d_kernel(float sigma, int* filterSize) {
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// We will actually take 2*halfFilterSize+1 samples (i.e., our filter kernel
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// sizes are always odd)
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int halfFilterSize = SkScalarCeilToInt(6*sigma)/2;
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int wh = *filterSize = 2*halfFilterSize + 1;
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float* temp = new float[wh*wh];
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float filterTot = 0.0f;
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for (int yOff = 0; yOff < wh; ++yOff) {
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for (int xOff = 0; xOff < wh; ++xOff) {
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temp[yOff*wh+xOff] = gaussian2d_value(xOff-halfFilterSize, yOff-halfFilterSize, sigma);
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filterTot += temp[yOff*wh+xOff];
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}
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}
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// normalize the kernel
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for (int yOff = 0; yOff < wh; ++yOff) {
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for (int xOff = 0; xOff < wh; ++xOff) {
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temp[yOff*wh+xOff] /= filterTot;
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}
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}
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return temp;
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}
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static SkPMColor blur_pixel(const SkBitmap& bm, int x, int y, float* kernel, int wh) {
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SkASSERT(wh & 0x1);
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int halfFilterSize = (wh-1)/2;
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float r = 0.0f, g = 0.0f, b = 0.0f;
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for (int yOff = 0; yOff < wh; ++yOff) {
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int ySamp = y + yOff - halfFilterSize;
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if (ySamp < 0) {
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ySamp = 0;
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} else if (ySamp > bm.height()-1) {
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ySamp = bm.height()-1;
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}
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for (int xOff = 0; xOff < wh; ++xOff) {
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int xSamp = x + xOff - halfFilterSize;
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if (xSamp < 0) {
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xSamp = 0;
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} else if (xSamp > bm.width()-1) {
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xSamp = bm.width()-1;
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}
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float filter = kernel[yOff*wh + xOff];
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SkPMColor c = *bm.getAddr32(xSamp, ySamp);
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r += SkGetPackedR32(c) * filter;
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g += SkGetPackedG32(c) * filter;
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b += SkGetPackedB32(c) * filter;
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}
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}
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U8CPU r8, g8, b8;
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r8 = (U8CPU) (r+0.5f);
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g8 = (U8CPU) (g+0.5f);
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b8 = (U8CPU) (b+0.5f);
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return SkPackARGB32(255, r8, g8, b8);
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}
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SkBitmap slow_blur(const SkBitmap& src, float sigma) {
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SkBitmap dst;
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dst.allocN32Pixels(src.width(), src.height(), true);
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int wh;
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std::unique_ptr<float[]> kernel(create_2d_kernel(sigma, &wh));
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for (int y = 0; y < src.height(); ++y) {
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for (int x = 0; x < src.width(); ++x) {
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*dst.getAddr32(x, y) = blur_pixel(src, x, y, kernel.get(), wh);
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}
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}
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return dst;
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}
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// compute the intersection point between the diagonal and the ellipse in the
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// lower right corner
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static SkPoint intersection(SkScalar w, SkScalar h) {
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SkASSERT(w > 0.0f || h > 0.0f);
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return SkPoint::Make(w / SK_ScalarSqrt2, h / SK_ScalarSqrt2);
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}
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// Use the intersection of the corners' diagonals with their ellipses to shrink
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// the bounding rect
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SkRect compute_central_occluder(const SkRRect& rr) {
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const SkRect r = rr.getBounds();
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SkScalar newL = r.fLeft, newT = r.fTop, newR = r.fRight, newB = r.fBottom;
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SkVector radii = rr.radii(SkRRect::kUpperLeft_Corner);
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if (!radii.isZero()) {
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SkPoint p = intersection(radii.fX, radii.fY);
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newL = SkTMax(newL, r.fLeft + radii.fX - p.fX);
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newT = SkTMax(newT, r.fTop + radii.fY - p.fY);
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}
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radii = rr.radii(SkRRect::kUpperRight_Corner);
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if (!radii.isZero()) {
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SkPoint p = intersection(radii.fX, radii.fY);
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newR = SkTMin(newR, r.fRight + p.fX - radii.fX);
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newT = SkTMax(newT, r.fTop + radii.fY - p.fY);
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}
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radii = rr.radii(SkRRect::kLowerRight_Corner);
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if (!radii.isZero()) {
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SkPoint p = intersection(radii.fX, radii.fY);
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newR = SkTMin(newR, r.fRight + p.fX - radii.fX);
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newB = SkTMin(newB, r.fBottom - radii.fY + p.fY);
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}
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radii = rr.radii(SkRRect::kLowerLeft_Corner);
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if (!radii.isZero()) {
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SkPoint p = intersection(radii.fX, radii.fY);
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newL = SkTMax(newL, r.fLeft + radii.fX - p.fX);
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newB = SkTMin(newB, r.fBottom - radii.fY + p.fY);
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}
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return SkRect::MakeLTRB(newL, newT, newR, newB);
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}
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// The widest inset rect
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SkRect compute_widest_occluder(const SkRRect& rr) {
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const SkRect& r = rr.getBounds();
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const SkVector& ul = rr.radii(SkRRect::kUpperLeft_Corner);
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const SkVector& ur = rr.radii(SkRRect::kUpperRight_Corner);
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const SkVector& lr = rr.radii(SkRRect::kLowerRight_Corner);
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const SkVector& ll = rr.radii(SkRRect::kLowerLeft_Corner);
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SkScalar maxT = SkTMax(ul.fY, ur.fY);
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SkScalar maxB = SkTMax(ll.fY, lr.fY);
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return SkRect::MakeLTRB(r.fLeft, r.fTop + maxT, r.fRight, r.fBottom - maxB);
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}
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// The tallest inset rect
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SkRect compute_tallest_occluder(const SkRRect& rr) {
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const SkRect& r = rr.getBounds();
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const SkVector& ul = rr.radii(SkRRect::kUpperLeft_Corner);
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const SkVector& ur = rr.radii(SkRRect::kUpperRight_Corner);
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const SkVector& lr = rr.radii(SkRRect::kLowerRight_Corner);
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const SkVector& ll = rr.radii(SkRRect::kLowerLeft_Corner);
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SkScalar maxL = SkTMax(ul.fX, ll.fX);
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SkScalar maxR = SkTMax(ur.fX, lr.fX);
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return SkRect::MakeLTRB(r.fLeft + maxL, r.fTop, r.fRight - maxR, r.fBottom);
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}
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|
bool copy_to(SkBitmap* dst, SkColorType dstColorType, const SkBitmap& src) {
|
|
SkPixmap srcPM;
|
|
if (!src.peekPixels(&srcPM)) {
|
|
return false;
|
|
}
|
|
|
|
SkBitmap tmpDst;
|
|
SkImageInfo dstInfo = srcPM.info().makeColorType(dstColorType);
|
|
if (!tmpDst.setInfo(dstInfo)) {
|
|
return false;
|
|
}
|
|
|
|
if (!tmpDst.tryAllocPixels()) {
|
|
return false;
|
|
}
|
|
|
|
SkPixmap dstPM;
|
|
if (!tmpDst.peekPixels(&dstPM)) {
|
|
return false;
|
|
}
|
|
|
|
if (!srcPM.readPixels(dstPM)) {
|
|
return false;
|
|
}
|
|
|
|
dst->swap(tmpDst);
|
|
return true;
|
|
}
|
|
|
|
void copy_to_g8(SkBitmap* dst, const SkBitmap& src) {
|
|
SkASSERT(kBGRA_8888_SkColorType == src.colorType() ||
|
|
kRGBA_8888_SkColorType == src.colorType());
|
|
|
|
SkImageInfo grayInfo = src.info().makeColorType(kGray_8_SkColorType);
|
|
dst->allocPixels(grayInfo);
|
|
uint8_t* dst8 = (uint8_t*)dst->getPixels();
|
|
const uint32_t* src32 = (const uint32_t*)src.getPixels();
|
|
|
|
const int w = src.width();
|
|
const int h = src.height();
|
|
const bool isBGRA = (kBGRA_8888_SkColorType == src.colorType());
|
|
for (int y = 0; y < h; ++y) {
|
|
if (isBGRA) {
|
|
// BGRA
|
|
for (int x = 0; x < w; ++x) {
|
|
uint32_t s = src32[x];
|
|
dst8[x] = SkComputeLuminance((s >> 16) & 0xFF, (s >> 8) & 0xFF, s & 0xFF);
|
|
}
|
|
} else {
|
|
// RGBA
|
|
for (int x = 0; x < w; ++x) {
|
|
uint32_t s = src32[x];
|
|
dst8[x] = SkComputeLuminance(s & 0xFF, (s >> 8) & 0xFF, (s >> 16) & 0xFF);
|
|
}
|
|
}
|
|
src32 = (const uint32_t*)((const char*)src32 + src.rowBytes());
|
|
dst8 += dst->rowBytes();
|
|
}
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
static int scale255(float x) {
|
|
return sk_float_round2int(x * 255);
|
|
}
|
|
|
|
static unsigned diff(const SkColorType ct, const void* a, const void* b) {
|
|
int dr = 0,
|
|
dg = 0,
|
|
db = 0,
|
|
da = 0;
|
|
switch (ct) {
|
|
case kRGBA_8888_SkColorType:
|
|
case kBGRA_8888_SkColorType: {
|
|
SkPMColor c0 = *(const SkPMColor*)a;
|
|
SkPMColor c1 = *(const SkPMColor*)b;
|
|
dr = SkGetPackedR32(c0) - SkGetPackedR32(c1);
|
|
dg = SkGetPackedG32(c0) - SkGetPackedG32(c1);
|
|
db = SkGetPackedB32(c0) - SkGetPackedB32(c1);
|
|
da = SkGetPackedA32(c0) - SkGetPackedA32(c1);
|
|
} break;
|
|
case kRGB_565_SkColorType: {
|
|
uint16_t c0 = *(const uint16_t*)a;
|
|
uint16_t c1 = *(const uint16_t*)b;
|
|
dr = SkGetPackedR16(c0) - SkGetPackedR16(c1);
|
|
dg = SkGetPackedG16(c0) - SkGetPackedG16(c1);
|
|
db = SkGetPackedB16(c0) - SkGetPackedB16(c1);
|
|
} break;
|
|
case kARGB_4444_SkColorType: {
|
|
uint16_t c0 = *(const uint16_t*)a;
|
|
uint16_t c1 = *(const uint16_t*)b;
|
|
dr = SkGetPackedR4444(c0) - SkGetPackedR4444(c1);
|
|
dg = SkGetPackedG4444(c0) - SkGetPackedG4444(c1);
|
|
db = SkGetPackedB4444(c0) - SkGetPackedB4444(c1);
|
|
da = SkGetPackedA4444(c0) - SkGetPackedA4444(c1);
|
|
} break;
|
|
case kAlpha_8_SkColorType:
|
|
case kGray_8_SkColorType:
|
|
da = (const uint8_t*)a - (const uint8_t*)b;
|
|
break;
|
|
case kRGBA_F16_SkColorType: {
|
|
const SkPM4f* c0 = (const SkPM4f*)a;
|
|
const SkPM4f* c1 = (const SkPM4f*)b;
|
|
dr = scale255(c0->r() - c1->r());
|
|
dg = scale255(c0->g() - c1->g());
|
|
db = scale255(c0->b() - c1->b());
|
|
da = scale255(c0->a() - c1->a());
|
|
} break;
|
|
default:
|
|
return 0;
|
|
}
|
|
dr = SkAbs32(dr);
|
|
dg = SkAbs32(dg);
|
|
db = SkAbs32(db);
|
|
da = SkAbs32(da);
|
|
return SkMax32(dr, SkMax32(dg, SkMax32(db, da)));
|
|
}
|
|
|
|
bool equal_pixels(const SkPixmap& a, const SkPixmap& b, unsigned maxDiff) {
|
|
if (a.width() != b.width() ||
|
|
a.height() != b.height() ||
|
|
a.colorType() != b.colorType() ||
|
|
a.colorSpace() != b.colorSpace())
|
|
{
|
|
return false;
|
|
}
|
|
|
|
for (int y = 0; y < a.height(); ++y) {
|
|
const char* aptr = (const char*)a.addr(0, y);
|
|
const char* bptr = (const char*)b.addr(0, y);
|
|
if (memcmp(aptr, bptr, a.width() * a.info().bytesPerPixel())) {
|
|
for (int x = 0; x < a.width(); ++x) {
|
|
if (diff(a.colorType(), a.addr(x, y), b.addr(x, y)) > maxDiff) {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
aptr += a.rowBytes();
|
|
bptr += b.rowBytes();
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool equal_pixels(const SkBitmap& bm0, const SkBitmap& bm1, unsigned maxDiff) {
|
|
SkPixmap pm0, pm1;
|
|
return bm0.peekPixels(&pm0) && bm1.peekPixels(&pm1) && equal_pixels(pm0, pm1, maxDiff);
|
|
}
|
|
} // namespace sk_tool_utils
|