f88d6765a5
disabled for now in SkPaint.cpp (for further testing) git-svn-id: http://skia.googlecode.com/svn/trunk@917 2bbb7eff-a529-9590-31e7-b0007b416f81
257 lines
8.3 KiB
C++
257 lines
8.3 KiB
C++
#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 SkView {
|
|
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;
|
|
XfermodesView() {
|
|
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);
|
|
}
|
|
|
|
void drawBG(SkCanvas* canvas) {
|
|
canvas->drawColor(SK_ColorWHITE);
|
|
}
|
|
|
|
virtual void onDraw(SkCanvas* canvas) {
|
|
canvas->translate(SkIntToScalar(10), SkIntToScalar(20));
|
|
|
|
this->drawBG(canvas);
|
|
|
|
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 SkView INHERITED;
|
|
};
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
static SkView* MyFactory() { return new XfermodesView; }
|
|
static SkViewRegister reg(MyFactory);
|
|
|