149 lines
5.4 KiB
C++
149 lines
5.4 KiB
C++
/*
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* Copyright 2011 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 "gm/gm.h"
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#include "include/core/SkBitmap.h"
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#include "include/core/SkCanvas.h"
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#include "include/core/SkColor.h"
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#include "include/core/SkFont.h"
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#include "include/core/SkFontTypes.h"
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#include "include/core/SkImageInfo.h"
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#include "include/core/SkPaint.h"
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#include "include/core/SkRect.h"
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#include "include/core/SkScalar.h"
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#include "include/core/SkSize.h"
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#include "include/core/SkString.h"
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#include "include/core/SkTypeface.h"
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#include "include/core/SkTypes.h"
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#include "tools/ToolUtils.h"
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#include <string.h>
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namespace {
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static const char* color_type_name(SkColorType colorType) {
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switch (colorType) {
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case kUnknown_SkColorType: return "unknown";
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case kAlpha_8_SkColorType: return "A8";
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case kRGB_565_SkColorType: return "565";
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case kARGB_4444_SkColorType: return "4444";
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case kRGBA_8888_SkColorType: return "8888";
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case kRGB_888x_SkColorType: return "888x";
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case kBGRA_8888_SkColorType: return "8888";
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case kRGBA_1010102_SkColorType: return "1010102";
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case kRGB_101010x_SkColorType: return "101010x";
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case kBGRA_1010102_SkColorType: return "bgra1010102";
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case kBGR_101010x_SkColorType: return "bgr101010x";
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case kGray_8_SkColorType: return "G8";
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case kRGBA_F16Norm_SkColorType: return "F16Norm";
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case kRGBA_F16_SkColorType: return "F16";
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case kRGBA_F32_SkColorType: return "F32";
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case kR8G8_unorm_SkColorType: return "R8G8_unorm";
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case kA16_unorm_SkColorType: return "A16_unorm";
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case kR16G16_unorm_SkColorType: return "R16G16_unorm";
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case kA16_float_SkColorType: return "A16_float";
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case kR16G16_float_SkColorType: return "R16G16_float";
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case kR16G16B16A16_unorm_SkColorType: return "R16G16B16A16_unorm";
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case kSRGBA_8888_SkColorType: return "SRGBA_8888";
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case kR8_unorm_SkColorType: return "R8_unorm";
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}
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return "";
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}
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constexpr SkColorType gColorTypes[] = {
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kRGB_565_SkColorType,
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kARGB_4444_SkColorType,
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kN32_SkColorType,
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};
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#define NUM_CONFIGS SK_ARRAY_COUNT(gColorTypes)
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static void draw_checks(SkCanvas* canvas, int width, int height) {
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SkPaint paint;
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paint.setColor(SK_ColorRED);
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canvas->drawRect(SkRect::MakeIWH(width/2, height/2), paint);
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paint.setColor(SK_ColorGREEN);
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canvas->drawRect({ SkIntToScalar(width/2), 0, SkIntToScalar(width), SkIntToScalar(height/2) },
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paint);
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paint.setColor(SK_ColorBLUE);
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canvas->drawRect({ 0, SkIntToScalar(height/2), SkIntToScalar(width/2), SkIntToScalar(height) },
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paint);
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paint.setColor(SK_ColorYELLOW);
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canvas->drawRect({ SkIntToScalar(width/2), SkIntToScalar(height/2), SkIntToScalar(width),
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SkIntToScalar(height) }, paint);
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}
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class BitmapCopyGM : public skiagm::GM {
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SkBitmap fDst[NUM_CONFIGS];
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void onOnceBeforeDraw() override { this->setBGColor(0xFFDDDDDD); }
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SkString onShortName() override { return SkString("bitmapcopy"); }
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SkISize onISize() override { return {540, 330}; }
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void onDraw(SkCanvas* canvas) override {
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SkPaint paint;
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SkScalar horizMargin = 10;
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SkScalar vertMargin = 10;
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SkBitmap src;
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src.allocN32Pixels(40, 40, kOpaque_SkAlphaType);
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SkCanvas canvasTmp(src);
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draw_checks(&canvasTmp, 40, 40);
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for (unsigned i = 0; i < NUM_CONFIGS; ++i) {
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ToolUtils::copy_to(&fDst[i], gColorTypes[i], src);
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}
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canvas->clear(0xFFDDDDDD);
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paint.setAntiAlias(true);
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SkFont font(ToolUtils::create_portable_typeface());
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SkScalar width = SkIntToScalar(40);
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SkScalar height = SkIntToScalar(40);
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if (font.getSpacing() > height) {
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height = font.getSpacing();
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}
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for (unsigned i = 0; i < NUM_CONFIGS; i++) {
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const char* name = color_type_name(src.colorType());
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SkScalar textWidth = font.measureText(name, strlen(name), SkTextEncoding::kUTF8);
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if (textWidth > width) {
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width = textWidth;
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}
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}
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SkScalar horizOffset = width + horizMargin;
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SkScalar vertOffset = height + vertMargin;
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canvas->translate(SkIntToScalar(20), SkIntToScalar(20));
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for (unsigned i = 0; i < NUM_CONFIGS; i++) {
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canvas->save();
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// Draw destination config name
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const char* name = color_type_name(fDst[i].colorType());
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SkScalar textWidth = font.measureText(name, strlen(name), SkTextEncoding::kUTF8);
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SkScalar x = (width - textWidth) / SkScalar(2);
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SkScalar y = font.getSpacing() / SkScalar(2);
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canvas->drawSimpleText(name, strlen(name), SkTextEncoding::kUTF8, x, y, font, paint);
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// Draw destination bitmap
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canvas->translate(0, vertOffset);
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x = (width - 40) / SkScalar(2);
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canvas->drawImage(fDst[i].asImage(), x, 0, SkSamplingOptions(), &paint);
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canvas->restore();
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canvas->translate(horizOffset, 0);
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}
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}
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};
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} // namespace
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//////////////////////////////////////////////////////////////////////////////
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DEF_GM( return new BitmapCopyGM; )
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