+++ /dev/null
-
-/*
- * Copyright 2011 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-#include "SampleCode.h"
-#include "SkView.h"
-#include "SkCanvas.h"
-#include "Sk64.h"
-#include "SkCornerPathEffect.h"
-#include "SkGradientShader.h"
-#include "SkGraphics.h"
-#include "SkImageDecoder.h"
-#include "SkKernel33MaskFilter.h"
-#include "SkPath.h"
-#include "SkRandom.h"
-#include "SkRegion.h"
-#include "SkShader.h"
-#include "SkUtils.h"
-#include "SkColorPriv.h"
-#include "SkColorFilter.h"
-#include "SkTime.h"
-#include "SkTypeface.h"
-#include "SkXfermode.h"
-
-#include "SkStream.h"
-#include "SkXMLParser.h"
-#include "SkColorPriv.h"
-#include "SkImageDecoder.h"
-
-static void setNamedTypeface(SkPaint* paint, const char name[]) {
- SkTypeface* face = SkTypeface::CreateFromName(name, SkTypeface::kNormal);
- paint->setTypeface(face);
- SkSafeUnref(face);
-}
-
-#if 0
-static int newscale(U8CPU a, U8CPU b, int shift) {
- unsigned prod = a * b + (1 << (shift - 1));
- return (prod + (prod >> shift)) >> shift;
-}
-
-static void test_srcover565(SkCanvas* canvas) {
- const int width = 32;
- SkBitmap bm1, bm2, bm3;
- bm1.setConfig(SkBitmap::kRGB_565_Config, width, 256); bm1.allocPixels(NULL);
- bm2.setConfig(SkBitmap::kRGB_565_Config, width, 256); bm2.allocPixels(NULL);
- bm3.setConfig(SkBitmap::kRGB_565_Config, width, 256); bm3.allocPixels(NULL);
-
- int rgb = 0x18;
- int r = rgb >> 3;
- int g = rgb >> 2;
- uint16_t dst = SkPackRGB16(r, g, r);
- for (int alpha = 0; alpha <= 255; alpha++) {
- SkPMColor pm = SkPreMultiplyARGB(alpha, rgb, rgb, rgb);
- uint16_t newdst = SkSrcOver32To16(pm, dst);
- sk_memset16(bm1.getAddr16(0, alpha), newdst, bm1.width());
-
- int ia = 255 - alpha;
- int iscale = SkAlpha255To256(ia);
- int dr = (SkGetPackedR32(pm) + (r * iscale >> 5)) >> 3;
- int dg = (SkGetPackedG32(pm) + (g * iscale >> 6)) >> 2;
-
- sk_memset16(bm2.getAddr16(0, alpha), SkPackRGB16(dr, dg, dr), bm2.width());
-
- int dr2 = (SkMulDiv255Round(alpha, rgb) + newscale(r, ia, 5)) >> 3;
- int dg2 = (SkMulDiv255Round(alpha, rgb) + newscale(g, ia, 6)) >> 2;
-
- sk_memset16(bm3.getAddr16(0, alpha), SkPackRGB16(dr2, dg2, dr2), bm3.width());
-
-// if (mr != dr || mg != dg)
- {
-// SkDebugf("[%d] macro [%d %d] inline [%d %d] new [%d %d]\n", alpha, mr, mg, dr, dg, dr2, dg2);
- }
- }
-
- SkScalar dx = SkIntToScalar(width+4);
-
- canvas->drawBitmap(bm1, 0, 0, NULL); canvas->translate(dx, 0);
- canvas->drawBitmap(bm2, 0, 0, NULL); canvas->translate(dx, 0);
- canvas->drawBitmap(bm3, 0, 0, NULL); canvas->translate(dx, 0);
-
- SkRect rect = { 0, 0, SkIntToScalar(bm1.width()), SkIntToScalar(bm1.height()) };
- SkPaint p;
- p.setARGB(0xFF, rgb, rgb, rgb);
- canvas->drawRect(rect, p);
-}
-#endif
-
-static void make_bitmaps(int w, int h, SkBitmap* src, SkBitmap* dst) {
- src->setConfig(SkBitmap::kARGB_8888_Config, w, h);
- src->allocPixels();
- src->eraseColor(0);
-
- SkCanvas c(*src);
- SkPaint p;
- SkRect r;
- SkScalar ww = SkIntToScalar(w);
- SkScalar hh = SkIntToScalar(h);
-
- p.setAntiAlias(true);
- p.setColor(0xFFFFCC44);
- r.set(0, 0, ww*3/4, hh*3/4);
- c.drawOval(r, p);
-
- dst->setConfig(SkBitmap::kARGB_8888_Config, w, h);
- dst->allocPixels();
- dst->eraseColor(0);
- c.setBitmapDevice(*dst);
-
- p.setColor(0xFF66AAFF);
- r.set(ww/3, hh/3, ww*19/20, hh*19/20);
- c.drawRect(r, p);
-}
-
-static uint16_t gBG[] = { 0xFFFF, 0xCCCF, 0xCCCF, 0xFFFF };
-
-class XfermodesView : public SampleView {
- SkBitmap fBG;
- SkBitmap fSrcB, fDstB;
-
- void draw_mode(SkCanvas* canvas, SkXfermode* mode, int alpha,
- SkScalar x, SkScalar y) {
- SkPaint p;
-
- canvas->drawBitmap(fSrcB, x, y, &p);
- p.setAlpha(alpha);
- p.setXfermode(mode);
- canvas->drawBitmap(fDstB, x, y, &p);
- }
-
-public:
- const static int W = 64;
- const static int H = 64;
- bool fOnce;
-
- XfermodesView() {
- fOnce = false;
- }
-
- void init() {
- if (fOnce) {
- return;
- }
- fOnce = true;
-
- const int W = 64;
- const int H = 64;
-
- fBG.setConfig(SkBitmap::kARGB_4444_Config, 2, 2, 4);
- fBG.setPixels(gBG);
- fBG.setIsOpaque(true);
-
- make_bitmaps(W, H, &fSrcB, &fDstB);
- }
-
-protected:
- // overrides from SkEventSink
- virtual bool onQuery(SkEvent* evt) {
- if (SampleCode::TitleQ(*evt)) {
- SampleCode::TitleR(evt, "Xfermodes");
- return true;
- }
- return this->INHERITED::onQuery(evt);
- }
-
- virtual void onDrawContent(SkCanvas* canvas) {
- this->init();
-
- canvas->translate(SkIntToScalar(10), SkIntToScalar(20));
-
- const struct {
- SkXfermode::Mode fMode;
- const char* fLabel;
- } gModes[] = {
- { SkXfermode::kClear_Mode, "Clear" },
- { SkXfermode::kSrc_Mode, "Src" },
- { SkXfermode::kDst_Mode, "Dst" },
- { SkXfermode::kSrcOver_Mode, "SrcOver" },
- { SkXfermode::kDstOver_Mode, "DstOver" },
- { SkXfermode::kSrcIn_Mode, "SrcIn" },
- { SkXfermode::kDstIn_Mode, "DstIn" },
- { SkXfermode::kSrcOut_Mode, "SrcOut" },
- { SkXfermode::kDstOut_Mode, "DstOut" },
- { SkXfermode::kSrcATop_Mode, "SrcATop" },
- { SkXfermode::kDstATop_Mode, "DstATop" },
- { SkXfermode::kXor_Mode, "Xor" },
-
- { SkXfermode::kPlus_Mode, "Plus" },
- { SkXfermode::kMultiply_Mode, "Multiply" },
- { SkXfermode::kScreen_Mode, "Screen" },
- { SkXfermode::kOverlay_Mode, "Overlay" },
- { SkXfermode::kDarken_Mode, "Darken" },
- { SkXfermode::kLighten_Mode, "Lighten" },
- { SkXfermode::kColorDodge_Mode, "ColorDodge" },
- { SkXfermode::kColorBurn_Mode, "ColorBurn" },
- { SkXfermode::kHardLight_Mode, "HardLight" },
- { SkXfermode::kSoftLight_Mode, "SoftLight" },
- { SkXfermode::kDifference_Mode, "Difference" },
- { SkXfermode::kExclusion_Mode, "Exclusion" },
- };
-
- const SkScalar w = SkIntToScalar(W);
- const SkScalar h = SkIntToScalar(H);
- SkShader* s = SkShader::CreateBitmapShader(fBG,
- SkShader::kRepeat_TileMode,
- SkShader::kRepeat_TileMode);
- SkMatrix m;
- m.setScale(SkIntToScalar(6), SkIntToScalar(6));
- s->setLocalMatrix(m);
-
- SkPaint labelP;
- labelP.setAntiAlias(true);
- labelP.setLCDRenderText(true);
- labelP.setTextAlign(SkPaint::kCenter_Align);
- setNamedTypeface(&labelP, "Menlo Regular");
-// labelP.setTextSize(SkIntToScalar(11));
-
- const int W = 5;
-
- SkScalar x0 = 0;
- for (int twice = 0; twice < 2; twice++) {
- SkScalar x = x0, y = 0;
- for (size_t i = 0; i < SK_ARRAY_COUNT(gModes); i++) {
- SkXfermode* mode = SkXfermode::Create(gModes[i].fMode);
- SkAutoUnref aur(mode);
- SkRect r;
- r.set(x, y, x+w, y+h);
-
- SkPaint p;
- p.setStyle(SkPaint::kFill_Style);
- p.setShader(s);
- canvas->drawRect(r, p);
-
- canvas->saveLayer(&r, NULL, SkCanvas::kARGB_ClipLayer_SaveFlag);
- // canvas->save();
- draw_mode(canvas, mode, twice ? 0x88 : 0xFF, r.fLeft, r.fTop);
- canvas->restore();
-
- r.inset(-SK_ScalarHalf, -SK_ScalarHalf);
- p.setStyle(SkPaint::kStroke_Style);
- p.setShader(NULL);
- canvas->drawRect(r, p);
-
-#if 1
- canvas->drawText(gModes[i].fLabel, strlen(gModes[i].fLabel),
- x + w/2, y - labelP.getTextSize()/2, labelP);
-#endif
- x += w + SkIntToScalar(10);
- if ((i % W) == W - 1) {
- x = x0;
- y += h + SkIntToScalar(30);
- }
- }
- x0 += SkIntToScalar(400);
- }
- s->unref();
- }
-
-private:
- typedef SampleView INHERITED;
-};
-
-//////////////////////////////////////////////////////////////////////////////
-
-static SkView* MyFactory() { return new XfermodesView; }
-static SkViewRegister reg(MyFactory);
-