CameraView() {
fRX = fRY = fRZ = 0;
fShaderIndex = 0;
fFrontFace = false;
for (int i = 0;; i++) {
SkString str;
str.printf("/skimages/elephant%d.jpeg", i);
SkBitmap bm;
if (SkImageDecoder::DecodeFile(str.c_str(), &bm)) {
SkShader* s = SkShader::CreateBitmapShader(bm,
SkShader::kClamp_TileMode,
SkShader::kClamp_TileMode);
SkRect src = { 0, 0, SkIntToScalar(bm.width()), SkIntToScalar(bm.height()) };
SkRect dst = { -150, -150, 150, 150 };
SkMatrix matrix;
matrix.setRectToRect(src, dst, SkMatrix::kFill_ScaleToFit);
s->setLocalMatrix(matrix);
*fShaders.append() = s;
} else {
break;
}
}
this->setBGColor(0xFFDDDDDD);
}
virtual void onDraw(SkCanvas* canvas) {
SkPoint pts[2] = {
{ 0, 0 },
{ SkIntToScalar(100), SkIntToScalar(100) }
};
SkShader::TileMode tm = SkShader::kClamp_TileMode;
SkRect r = { 0, 0, SkIntToScalar(100), SkIntToScalar(100) };
SkPaint paint;
paint.setAntiAlias(true);
canvas->translate(SkIntToScalar(20), SkIntToScalar(20));
for (size_t i = 0; i < SK_ARRAY_COUNT(gGradData); i++) {
canvas->save();
for (size_t j = 0; j < SK_ARRAY_COUNT(gGradMakers); j++) {
SkMatrix scale = SkMatrix::I();
if (i == 5) { // if the clamp case
scale.setScale(0.5f, 0.5f);
scale.postTranslate(25.f, 25.f);
}
SkShader* shader = gGradMakers[j](pts, gGradData[i], tm, scale);
paint.setShader(shader);
canvas->drawRect(r, paint);
shader->unref();
canvas->translate(0, SkIntToScalar(120));
}
canvas->restore();
canvas->translate(SkIntToScalar(120), 0);
}
}
static void gradient_slide(SkCanvas* canvas) {
SkPoint pts[2] = {
{ 0, 0 },
{ SkIntToScalar(100), SkIntToScalar(100) }
};
SkShader::TileMode tm = SkShader::kClamp_TileMode;
SkRect r = { 0, 0, SkIntToScalar(100), SkIntToScalar(100) };
SkPaint paint;
paint.setAntiAlias(true);
paint.setDither(true);
canvas->translate(SkIntToScalar(20), SkIntToScalar(10));
for (size_t i = 0; i < SK_ARRAY_COUNT(gGradData); i++) {
canvas->save();
for (size_t j = 0; j < SK_ARRAY_COUNT(gGradMakers); j++) {
SkShader* shader = gGradMakers[j](pts, gGradData[i], tm);
paint.setShader(shader);
canvas->drawRect(r, paint);
shader->unref();
canvas->translate(0, SkIntToScalar(120));
}
canvas->restore();
canvas->translate(SkIntToScalar(120), 0);
}
}
SkPDFShader::State::State(const SkShader& shader,
const SkMatrix& canvasTransform, const SkIRect& bbox)
: fCanvasTransform(canvasTransform),
fBBox(bbox),
fPixelGeneration(0) {
fInfo.fColorCount = 0;
fInfo.fColors = NULL;
fInfo.fColorOffsets = NULL;
fShaderTransform = shader.getLocalMatrix();
fImageTileModes[0] = fImageTileModes[1] = SkShader::kClamp_TileMode;
fType = shader.asAGradient(&fInfo);
if (fType == SkShader::kNone_GradientType) {
SkShader::BitmapType bitmapType;
SkMatrix matrix;
bitmapType = shader.asABitmap(&fImage, &matrix, fImageTileModes);
if (bitmapType != SkShader::kDefault_BitmapType) {
fImage.reset();
return;
}
SkASSERT(matrix.isIdentity());
fPixelGeneration = fImage.getGenerationID();
} else {
AllocateGradientInfoStorage();
shader.asAGradient(&fInfo);
}
}
/* Hit a few SkPicture::Analysis cases not handled elsewhere. */
static void test_analysis(skiatest::Reporter* reporter) {
SkPictureRecorder recorder;
SkCanvas* canvas = recorder.beginRecording(100, 100);
{
canvas->drawRect(SkRect::MakeWH(10, 10), SkPaint ());
}
SkAutoTUnref<SkPicture> picture(recorder.endRecording());
REPORTER_ASSERT(reporter, !picture->willPlayBackBitmaps());
canvas = recorder.beginRecording(100, 100);
{
SkPaint paint;
// CreateBitmapShader is too smart for us; an empty (or 1x1) bitmap shader
// gets optimized into a non-bitmap form, so we create a 2x2 bitmap here.
SkBitmap bitmap;
bitmap.allocPixels(SkImageInfo::MakeN32Premul(2, 2));
bitmap.eraseColor(SK_ColorBLUE);
*(bitmap.getAddr32(0, 0)) = SK_ColorGREEN;
SkShader* shader = SkShader::CreateBitmapShader(bitmap, SkShader::kClamp_TileMode,
SkShader::kClamp_TileMode);
paint.setShader(shader)->unref();
REPORTER_ASSERT(reporter,
shader->asABitmap(NULL, NULL, NULL) == SkShader::kDefault_BitmapType);
canvas->drawRect(SkRect::MakeWH(10, 10), paint);
}
picture.reset(recorder.endRecording());
REPORTER_ASSERT(reporter, picture->willPlayBackBitmaps());
}
void PlatformContextSkiaJava::drawRect(SkRect rect)
{
SkPaint paint;
int fillcolorNotTransparent = m_state->m_fillColor & 0xFF000000;
if (fillcolorNotTransparent) {
setupPaintForFilling(&paint);
canvas()->drawRect(rect, paint);
}
if (m_state->m_strokeStyle != WebCore::NoStroke &&
(m_state->m_strokeColor & 0xFF000000)) {
// We do a fill of four rects to simulate the stroke of a border.
SkColor oldFillColor = m_state->m_fillColor;
// setFillColor() will set the shader to NULL, so save a ref to it now.
SkShader* oldFillShader = m_state->m_fillShader;
oldFillShader->safeRef();
setFillColor(m_state->m_strokeColor);
paint.reset();
setupPaintForFilling(&paint);
SkRect topBorder = { rect.fLeft, rect.fTop, rect.fRight, rect.fTop + 1 };
canvas()->drawRect(topBorder, paint);
SkRect bottomBorder = { rect.fLeft, rect.fBottom - 1, rect.fRight, rect.fBottom };
canvas()->drawRect(bottomBorder, paint);
SkRect leftBorder = { rect.fLeft, rect.fTop + 1, rect.fLeft + 1, rect.fBottom - 1 };
canvas()->drawRect(leftBorder, paint);
SkRect rightBorder = { rect.fRight - 1, rect.fTop + 1, rect.fRight, rect.fBottom - 1 };
canvas()->drawRect(rightBorder, paint);
setFillColor(oldFillColor);
setFillShader(oldFillShader);
oldFillShader->safeUnref();
}
}
SkPDFShader::State::State(const SkShader& shader,
const SkMatrix& canvasTransform, const SkIRect& bbox)
: fCanvasTransform(canvasTransform),
fBBox(bbox),
fPixelGeneration(0) {
fInfo.fColorCount = 0;
fInfo.fColors = NULL;
fInfo.fColorOffsets = NULL;
shader.getLocalMatrix(&fShaderTransform);
fImageTileModes[0] = fImageTileModes[1] = SkShader::kClamp_TileMode;
fType = shader.asAGradient(&fInfo);
if (fType == SkShader::kNone_GradientType) {
SkShader::BitmapType bitmapType;
SkMatrix matrix;
bitmapType = shader.asABitmap(&fImage, &matrix, fImageTileModes, NULL);
if (bitmapType != SkShader::kDefault_BitmapType) {
fImage.reset();
return;
}
SkASSERT(matrix.isIdentity());
fPixelGeneration = fImage.getGenerationID();
} else {
fColorData.set(sk_malloc_throw(
fInfo.fColorCount * (sizeof(SkColor) + sizeof(SkScalar))));
fInfo.fColors = reinterpret_cast<SkColor*>(fColorData.get());
fInfo.fColorOffsets =
reinterpret_cast<SkScalar*>(fInfo.fColors + fInfo.fColorCount);
shader.asAGradient(&fInfo);
}
}
void
DrawTargetSkia::DrawSurface(SourceSurface *aSurface,
const Rect &aDest,
const Rect &aSource,
const DrawSurfaceOptions &aSurfOptions,
const DrawOptions &aOptions)
{
if (aSurface->GetType() != SURFACE_SKIA) {
return;
}
if (aSource.IsEmpty()) {
return;
}
MarkChanged();
SkRect destRect = RectToSkRect(aDest);
SkRect sourceRect = RectToSkRect(aSource);
SkMatrix matrix;
matrix.setRectToRect(sourceRect, destRect, SkMatrix::kFill_ScaleToFit);
const SkBitmap& bitmap = static_cast<SourceSurfaceSkia*>(aSurface)->GetBitmap();
AutoPaintSetup paint(mCanvas.get(), aOptions);
SkShader *shader = SkShader::CreateBitmapShader(bitmap, SkShader::kClamp_TileMode, SkShader::kClamp_TileMode);
shader->setLocalMatrix(matrix);
SkSafeUnref(paint.mPaint.setShader(shader));
if (aSurfOptions.mFilter != FILTER_LINEAR) {
paint.mPaint.setFilterBitmap(false);
}
mCanvas->drawRect(destRect, paint.mPaint);
}
virtual void onDraw(SkCanvas* canvas) {
SkPoint pts[2] = {
{ 0, 0 },
{ SkIntToScalar(100), SkIntToScalar(100) }
};
SkShader::TileMode tm = SkShader::kClamp_TileMode;
SkRect r = { 0, 0, SkIntToScalar(100), SkIntToScalar(100) };
SkPaint paint;
paint.setAntiAlias(true);
canvas->translate(SkIntToScalar(20), SkIntToScalar(20));
for (size_t i = 0; i < SK_ARRAY_COUNT(gGradData); i++) {
canvas->save();
for (size_t j = 0; j < SK_ARRAY_COUNT(gGradMakers); j++) {
SkShader* shader = gGradMakers[j](pts, gGradData[i], tm, NULL);
// apply an increasing y perspective as we move to the right
SkMatrix perspective;
perspective.setIdentity();
perspective.setPerspY(SkScalarDiv(SkIntToScalar((unsigned) i+1),
SkIntToScalar(500)));
perspective.setSkewX(SkScalarDiv(SkIntToScalar((unsigned) i+1),
SkIntToScalar(10)));
shader->setLocalMatrix(perspective);
paint.setShader(shader);
canvas->drawRect(r, paint);
shader->unref();
canvas->translate(0, SkIntToScalar(120));
}
canvas->restore();
canvas->translate(SkIntToScalar(120), 0);
}
}
/*
* When a function want to use the paint associated with a canvas to
* draw, it should call _prepare_paint() can make the paint ready.
* And, call _finish_paint() when the paint is no more used.
*/
static void
_prepare_paint(mbe_t *mbe, SkPaint::Style style) {
SkPaint *paint = mbe->paint;
mbe_pattern_t *ptn = mbe->states->ptn;
SkShader *shader;
co_aix matrix[6];
SkMatrix skmatrix;
paint->setStyle(style);
if(ptn != NULL) {
/* Local matrix of SkShader is a mapping from source pattern to
* user space. Unlikely, for Cairo is a mapping from user space
* to source pattern.
*/
shader = ptn->shader;
matrix_mul(mbe->states->matrix, ptn->matrix, matrix);
MB_MATRIX_2_SKMATRIX(skmatrix, matrix);
shader->setLocalMatrix(skmatrix);
paint->setShader(shader);
}
if(style == SkPaint::kStroke_Style)
paint->setStrokeWidth(CO_AIX_2_SKSCALAR(mbe->states->line_width));
if(ptn != NULL && ptn->has_size)
_prepare_sized_pattern(mbe, ptn);
}
ShaderView()
{
SkImageDecoder::DecodeFile("/cover.png", &fBitmap);
SkPoint pts[2];
SkColor colors[2];
pts[0].set(0, 0);
pts[1].set(SkIntToScalar(100), 0);
colors[0] = SK_ColorRED;
colors[1] = SK_ColorBLUE;
SkShader* shaderA = SkGradientShader::CreateLinear(pts, colors, NULL, 2, SkShader::kClamp_TileMode);
pts[0].set(0, 0);
pts[1].set(0, SkIntToScalar(100));
colors[0] = SK_ColorBLACK;
colors[1] = SkColorSetARGB(0x80, 0, 0, 0);
SkShader* shaderB = SkGradientShader::CreateLinear(pts, colors, NULL, 2, SkShader::kClamp_TileMode);
SkXfermode* mode = SkPorterDuff::CreateXfermode(SkPorterDuff::kDstIn_Mode);
fShader = new SkComposeShader(shaderA, shaderB, mode);
shaderA->unref();
shaderB->unref();
mode->unref();
}
static cairo_status_t
_cairo_skia_context_set_source (void *abstract_cr,
cairo_pattern_t *source)
{
cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
SkColor color;
if (cr->source != NULL) {
if (cr->source_image != NULL) {
_cairo_surface_release_source_image (cr->source, cr->source_image, cr->source_extra);
cr->source_image = NULL;
}
cairo_surface_destroy (cr->source);
cr->source = NULL;
}
if (pattern_to_sk_color (source, color)) {
cr->paint->setColor (color);
} else {
SkShader *shader = source_to_sk_shader (cr, source);
if (shader == NULL) {
UNSUPPORTED;
return CAIRO_STATUS_SUCCESS;
}
cr->paint->setShader (shader);
shader->unref ();
cr->paint->setFilterBitmap (pattern_filter_to_sk (source));
}
/* XXX change notification */
return CAIRO_STATUS_SUCCESS;
}
bool SkPaint2GrPaint(GrContext* context, GrRenderTarget* rt, const SkPaint& skPaint,
const SkMatrix& viewM, bool constantColor, GrPaint* grPaint) {
SkShader* shader = skPaint.getShader();
if (NULL == shader) {
return SkPaint2GrPaintNoShader(context, rt, skPaint, SkColor2GrColor(skPaint.getColor()),
constantColor, grPaint);
}
GrColor paintColor = SkColor2GrColor(skPaint.getColor());
// Start a new block here in order to preserve our context state after calling
// asFragmentProcessor(). Since these calls get passed back to the client, we don't really
// want them messing around with the context.
{
// Allow the shader to modify paintColor and also create an effect to be installed as
// the first color effect on the GrPaint.
GrFragmentProcessor* fp = NULL;
if (!shader->asFragmentProcessor(context, skPaint, viewM, NULL, &paintColor,
grPaint->getProcessorDataManager(), &fp)) {
return false;
}
if (fp) {
grPaint->addColorProcessor(fp)->unref();
constantColor = false;
}
}
// The grcolor is automatically set when calling asFragmentProcessor.
// If the shader can be seen as an effect it returns true and adds its effect to the grpaint.
return SkPaint2GrPaintNoShader(context, rt, skPaint, paintColor, constantColor, grPaint);
}
static void drawmarshmallow(SkCanvas* canvas) {
SkBitmap bitmap;
SkPaint paint;
SkRect r;
SkMatrix m;
SkImageDecoder::DecodeFile("/Users/reed/Downloads/3elfs.jpg", &bitmap);
if (!bitmap.pixelRef()) {
return;
}
SkShader* s = SkShader::CreateBitmapShader(bitmap,
SkShader::kRepeat_TileMode,
SkShader::kRepeat_TileMode);
paint.setShader(s)->unref();
m.setTranslate(SkIntToScalar(250), SkIntToScalar(134));
s->setLocalMatrix(m);
r.set(SkIntToScalar(250),
SkIntToScalar(134),
SkIntToScalar(250 + 449),
SkIntToScalar(134 + 701));
paint.setFlags(2);
canvas->drawRect(r, paint);
}
GrFragmentProcessor* GrPerlinNoiseEffect::TestCreate(SkRandom* random,
GrContext* context,
const GrCaps&,
GrTexture**) {
int numOctaves = random->nextRangeU(2, 10);
bool stitchTiles = random->nextBool();
SkScalar seed = SkIntToScalar(random->nextU());
SkISize tileSize = SkISize::Make(random->nextRangeU(4, 4096), random->nextRangeU(4, 4096));
SkScalar baseFrequencyX = random->nextRangeScalar(0.01f,
0.99f);
SkScalar baseFrequencyY = random->nextRangeScalar(0.01f,
0.99f);
SkShader* shader = random->nextBool() ?
SkPerlinNoiseShader::CreateFractalNoise(baseFrequencyX, baseFrequencyY, numOctaves, seed,
stitchTiles ? &tileSize : NULL) :
SkPerlinNoiseShader::CreateTurbulence(baseFrequencyX, baseFrequencyY, numOctaves, seed,
stitchTiles ? &tileSize : NULL);
SkPaint paint;
GrColor paintColor;
GrFragmentProcessor* effect;
SkAssertResult(shader->asFragmentProcessor(context, paint,
GrTest::TestMatrix(random), NULL,
&paintColor, &effect));
SkDELETE(shader);
return effect;
}
// Set a bitmap shader that mimics dashing by width-on, width-off.
// Returns false if it could not succeed (e.g. there was an existing shader)
static bool setBitmapDash(SkPaint* paint, int width) {
if (width <= 0 || paint->getShader())
return false;
SkColor c = paint->getColor();
SkBitmap bm;
bm.setConfig(SkBitmap::kARGB_8888_Config, 2, 1);
bm.allocPixels();
bm.lockPixels();
// set the ON pixel
*bm.getAddr32(0, 0) = SkPreMultiplyARGB(0xFF, SkColorGetR(c),
SkColorGetG(c), SkColorGetB(c));
// set the OFF pixel
*bm.getAddr32(1, 0) = 0;
bm.unlockPixels();
SkMatrix matrix;
matrix.setScale(SkIntToScalar(width), SK_Scalar1);
SkShader* s = SkShader::CreateBitmapShader(bm, SkShader::kRepeat_TileMode,
SkShader::kClamp_TileMode);
s->setLocalMatrix(matrix);
paint->setShader(s)->unref();
return true;
}
int
sk_test_linear_gradient(caskbench_context_t *ctx)
{
int w = ctx->canvas_width;
int h = ctx->canvas_height;
int stops = 10;
SkPoint pts[2];
pts[0].iset(0, 0);
pts[1].iset(100, 100);
SkColor colors[10];
SkScalar pos[10];
for (int i = 0; i < stops; i++) {
pos[i] = i / SkIntToScalar(stops - 1);
colors[i] = skiaRandomColor();
}
SkShader *shader = SkGradientShader::CreateLinear(pts, colors, pos, stops,
SkShader::kClamp_TileMode);
ctx->skia_paint->setShader(shader);
shapes_t shape;
shape_copy(&ctx->shape_defaults, &shape);
for (int i=0; i<ctx->size; i++) {
double x1 = (double)rnd()/RAND_MAX * w;
double x2 = (double)rnd()/RAND_MAX * w;
double y1 = (double)rnd()/RAND_MAX * h;
double y2 = (double)rnd()/RAND_MAX * h;
double xx = MIN(x1, x2);
double yy = MIN(x1, x2);
double ww = abs(x2 - x1);
double hh = abs(y2 - y1);
ctx->skia_canvas->save();
ctx->skia_canvas->translate(SkDoubleToScalar(xx), SkDoubleToScalar(yy));
ctx->skia_canvas->scale(SkDoubleToScalar(ww/100), SkDoubleToScalar(hh/100));
// transform(shape.width/100, 0, 0, shape.height/100, 0, 0)
shape.x = 0;
shape.y = 0;
shape.width = 100;
shape.height = 100;
shape.fill_type = CB_FILL_LINEAR_GRADIENT;
ctx->skia_paint->setStyle(SkPaint::kFill_Style);
ctx->skia_paint->setShader(shader);
skiaDrawRectangle(ctx, &shape);
ctx->skia_canvas->restore();
}
if (shader)
shader->unref();
return 1;
}
virtual void onDraw(SkCanvas* canvas) {
SkMatrix m;
m.reset();
m.setRotate(33 * SK_Scalar1);
m.postScale(3000 * SK_Scalar1, 3000 * SK_Scalar1);
m.postTranslate(6000 * SK_Scalar1, -5000 * SK_Scalar1);
canvas->concat(m);
SkPaint paint;
paint.setColor(SK_ColorRED);
paint.setAntiAlias(true);
bool success = m.invert(&m);
SkASSERT(success);
(void) success; // silence compiler :(
SkPath path;
SkPoint pt = {10 * SK_Scalar1, 10 * SK_Scalar1};
SkScalar small = 1 / (500 * SK_Scalar1);
m.mapPoints(&pt, 1);
path.addCircle(pt.fX, pt.fY, small);
canvas->drawPath(path, paint);
pt.set(30 * SK_Scalar1, 10 * SK_Scalar1);
m.mapPoints(&pt, 1);
SkRect rect = {pt.fX - small, pt.fY - small,
pt.fX + small, pt.fY + small};
canvas->drawRect(rect, paint);
SkBitmap bmp;
bmp.setConfig(SkBitmap::kARGB_8888_Config, 2, 2);
bmp.allocPixels();
bmp.lockPixels();
uint32_t* pixels = reinterpret_cast<uint32_t*>(bmp.getPixels());
pixels[0] = SkPackARGB32(0xFF, 0xFF, 0x00, 0x00);
pixels[1] = SkPackARGB32(0xFF, 0x00, 0xFF, 0x00);
pixels[2] = SkPackARGB32(0x80, 0x00, 0x00, 0x00);
pixels[3] = SkPackARGB32(0xFF, 0x00, 0x00, 0xFF);
bmp.unlockPixels();
pt.set(30 * SK_Scalar1, 30 * SK_Scalar1);
m.mapPoints(&pt, 1);
SkShader* shader = SkShader::CreateBitmapShader(
bmp,
SkShader::kRepeat_TileMode,
SkShader::kRepeat_TileMode);
SkMatrix s;
s.reset();
s.setScale(SK_Scalar1 / 1000, SK_Scalar1 / 1000);
shader->setLocalMatrix(s);
paint.setShader(shader)->unref();
paint.setAntiAlias(false);
paint.setFilterLevel(SkPaint::kLow_FilterLevel);
rect.setLTRB(pt.fX - small, pt.fY - small,
pt.fX + small, pt.fY + small);
canvas->drawRect(rect, paint);
}
static void paintButtonLike(RenderTheme* theme, RenderObject* o, const RenderObject::PaintInfo& i, const IntRect& rect)
{
SkCanvas* const canvas = i.context->platformContext()->canvas();
SkPaint paint;
SkRect skrect;
const int right = rect.x() + rect.width();
const int bottom = rect.y() + rect.height();
SkColor baseColor = SkColorSetARGB(0xff, 0xdd, 0xdd, 0xdd);
if (o->style()->hasBackground())
baseColor = o->style()->backgroundColor().rgb();
double h, s, l;
Color(baseColor).getHSL(h, s, l);
// Our standard gradient is from 0xdd to 0xf8. This is the amount of
// increased luminance between those values.
SkColor lightColor(brightenColor(h, s, l, 0.105));
// If the button is too small, fallback to drawing a single, solid color
if (rect.width() < 5 || rect.height() < 5) {
paint.setColor(baseColor);
skrect.set(rect.x(), rect.y(), right, bottom);
canvas->drawRect(skrect, paint);
return;
}
const int borderAlpha = theme->isHovered(o) ? 0x80 : 0x55;
paint.setARGB(borderAlpha, 0, 0, 0);
canvas->drawLine(rect.x() + 1, rect.y(), right - 1, rect.y(), paint);
canvas->drawLine(right - 1, rect.y() + 1, right - 1, bottom - 1, paint);
canvas->drawLine(rect.x() + 1, bottom - 1, right - 1, bottom - 1, paint);
canvas->drawLine(rect.x(), rect.y() + 1, rect.x(), bottom - 1, paint);
paint.setARGB(0xff, 0, 0, 0);
SkPoint p[2];
const int lightEnd = theme->isPressed(o) ? 1 : 0;
const int darkEnd = !lightEnd;
p[lightEnd].set(SkIntToScalar(rect.x()), SkIntToScalar(rect.y()));
p[darkEnd].set(SkIntToScalar(rect.x()), SkIntToScalar(bottom - 1));
SkColor colors[2];
colors[0] = lightColor;
colors[1] = baseColor;
SkShader* shader = SkGradientShader::CreateLinear(
p, colors, NULL, 2, SkShader::kClamp_TileMode, NULL);
paint.setStyle(SkPaint::kFill_Style);
paint.setShader(shader);
shader->unref();
skrect.set(rect.x() + 1, rect.y() + 1, right - 1, bottom - 1);
canvas->drawRect(skrect, paint);
paint.setShader(NULL);
paint.setColor(brightenColor(h, s, l, -0.0588));
canvas->drawPoint(rect.x() + 1, rect.y() + 1, paint);
canvas->drawPoint(right - 2, rect.y() + 1, paint);
canvas->drawPoint(rect.x() + 1, bottom - 2, paint);
canvas->drawPoint(right - 2, bottom - 2, paint);
}
void GraphicsContext::setPlatformFillPattern(Pattern* pattern)
{
if (paintingDisabled())
return;
SkShader* pat = pattern->createPlatformPattern(getCTM());
platformContext()->setFillShader(pat);
pat->safeUnref();
}
void addBitmapFromPaint(const SkPaint& paint) {
SkShader* shader = paint.getShader();
if (shader) {
SkBitmap bm;
if (shader->asABitmap(&bm, NULL, NULL)) {
fPRSet->add(bm.pixelRef());
}
}
}
void SkARGB32_Shader_Blitter::blitMask(const SkMask& mask, const SkIRect& clip) {
// we only handle kA8 with an xfermode
if (fXfermode && (SkMask::kA8_Format != mask.fFormat)) {
this->INHERITED::blitMask(mask, clip);
return;
}
SkASSERT(mask.fBounds.contains(clip));
SkBlitMask::RowProc proc = NULL;
if (!fXfermode) {
unsigned flags = 0;
if (fShader->getFlags() & SkShader::kOpaqueAlpha_Flag) {
flags |= SkBlitMask::kSrcIsOpaque_RowFlag;
}
proc = SkBlitMask::RowFactory(SkBitmap::kARGB_8888_Config, mask.fFormat,
(SkBlitMask::RowFlags)flags);
if (NULL == proc) {
this->INHERITED::blitMask(mask, clip);
return;
}
}
const int x = clip.fLeft;
const int width = clip.width();
int y = clip.fTop;
int height = clip.height();
char* dstRow = (char*)fDevice.getAddr32(x, y);
const size_t dstRB = fDevice.rowBytes();
const uint8_t* maskRow = (const uint8_t*)mask.getAddr(x, y);
const size_t maskRB = mask.fRowBytes;
SkShader* shader = fShader;
SkPMColor* span = fBuffer;
if (fXfermode) {
SkASSERT(SkMask::kA8_Format == mask.fFormat);
SkXfermode* xfer = fXfermode;
do {
shader->shadeSpan(x, y, span, width);
xfer->xfer32((SkPMColor*)dstRow, span, width, maskRow);
dstRow += dstRB;
maskRow += maskRB;
y += 1;
} while (--height > 0);
} else {
do {
shader->shadeSpan(x, y, span, width);
proc(dstRow, maskRow, span, width);
dstRow += dstRB;
maskRow += maskRB;
y += 1;
} while (--height > 0);
}
}
void Image::drawPattern(GraphicsContext* ctxt, const FloatRect& tileRect,
const TransformationMatrix& patternTransform,
const FloatPoint& phase, CompositeOperator compositeOp,
const FloatRect& destRect)
{
SkBitmapRef* image = this->nativeImageForCurrentFrame();
if (!image) { // If it's too early we won't have an image yet.
return;
}
// in case we get called with an incomplete bitmap
const SkBitmap& bitmap = image->bitmap();
if (bitmap.getPixels() == NULL && bitmap.pixelRef() == NULL) {
return;
}
SkRect dstR;
android_setrect(&dstR, destRect);
if (dstR.isEmpty()) {
return;
}
SkCanvas* canvas = ctxt->platformContext()->mCanvas;
SkPaint paint;
SkShader* shader = SkShader::CreateBitmapShader(bitmap,
SkShader::kRepeat_TileMode,
SkShader::kRepeat_TileMode);
paint.setShader(shader)->unref();
// now paint is the only owner of shader
paint.setPorterDuffXfermode(android_convert_compositeOp(compositeOp));
paint.setFilterBitmap(true);
SkMatrix matrix(patternTransform);
float scaleX = (float)image->origWidth() / bitmap.width();
float scaleY = (float)image->origHeight() / bitmap.height();
matrix.preScale(SkFloatToScalar(scaleX), SkFloatToScalar(scaleY));
matrix.postTranslate(SkFloatToScalar(phase.x()),
SkFloatToScalar(phase.y()));
shader->setLocalMatrix(matrix);
canvas->drawRect(dstR, paint);
#ifdef TRACE_SUBSAMPLED_BITMAPS
if (bitmap.width() != image->origWidth() ||
bitmap.height() != image->origHeight()) {
SkDebugf("--- Image::drawPattern [%d %d] orig [%d %d] dst [%g %g]\n",
bitmap.width(), bitmap.height(),
image->origWidth(), image->origHeight(),
SkScalarToFloat(dstR.width()), SkScalarToFloat(dstR.height()));
}
#endif
}
static cairo_int_status_t
_cairo_skia_surface_paint (void *asurface,
cairo_operator_t op,
const cairo_pattern_t *source,
cairo_clip_t *clip)
{
cairo_skia_surface_t *surface = (cairo_skia_surface_t *) asurface;
cairo_image_surface_t *image = NULL;
cairo_status_t status;
void *image_extra;
SkColor color;
status = _cairo_surface_clipper_set_clip (&surface->clipper, clip);
if (unlikely (status))
return (cairo_int_status_t) status;
if (pattern_to_sk_color (source, color)) {
surface->canvas->drawColor (color, operator_to_sk (op));
return CAIRO_INT_STATUS_SUCCESS;
}
SkMatrix bitmapMatrix;
SkBitmap *bitmap = pattern_to_sk_bitmap (surface, source, &bitmapMatrix,
&image, &image_extra);
SkShader *shader = NULL;
if (!bitmap)
shader = pattern_to_sk_shader (surface, source, &image, &image_extra);
if (!bitmap && !shader)
return UNSUPPORTED("pattern to bitmap and shader conversion");
SkPaint paint;
paint.setFilterBitmap (pattern_filter_to_sk (source));
paint.setXfermodeMode (operator_to_sk (op));
if (shader) {
paint.setShader (shader);
surface->canvas->drawPaint (paint);
} else {
surface->canvas->drawBitmapMatrix (*bitmap, bitmapMatrix, &paint);
}
if (bitmap)
delete bitmap;
if (shader)
shader->unref ();
if (image != NULL) {
_cairo_surface_release_source_image (&surface->base,
image, image_extra);
}
return CAIRO_INT_STATUS_SUCCESS;
}
void make_bitmap() {
fBitmap.allocN32Pixels(80, 80);
SkCanvas canvas(fBitmap);
canvas.clear(0x00000000);
SkPaint paint;
paint.setAntiAlias(true);
SkShader* shader = MakeLinear();
paint.setShader(shader);
SkRect r = { 0, 0, SkIntToScalar(80), SkIntToScalar(80) };
canvas.drawRect(r, paint);
shader->unref();
}
SkShader* Gradient::getShader(SkShader::TileMode mode)
{
if (NULL == m_gradient)
m_gradient = new PlatformGradientRec;
else if (mode == m_gradient->m_tileMode)
return m_gradient->m_shader;
// need to ensure that the m_stops array is sorted. We call getColor()
// which, as a side effect, does the sort.
// TODO: refactor Gradient.h to formally expose a sort method
{
float r, g, b, a;
this->getColor(0, &r, &g, &b, &a);
}
SkPoint pts[2] = { m_p0, m_p1 }; // convert to SkPoint
const size_t count = m_stops.size();
SkAutoMalloc storage(count * (sizeof(SkColor) + sizeof(SkScalar)));
SkColor* colors = (SkColor*)storage.get();
SkScalar* pos = (SkScalar*)(colors + count);
Vector<ColorStop>::iterator iter = m_stops.begin();
for (int i = 0; iter != m_stops.end(); i++) {
pos[i] = SkFloatToScalar(iter->stop);
colors[i] = SkColorSetARGB(F2B(iter->alpha), F2B(iter->red),
F2B(iter->green), F2B(iter->blue));
++iter;
}
SkShader* s;
if (m_radial)
s = SkGradientShader::CreateTwoPointRadial(pts[0],
SkFloatToScalar(m_r0),
pts[1],
SkFloatToScalar(m_r1),
colors, pos, count, mode);
else
s = SkGradientShader::CreateLinear(pts, colors, pos, count, mode);
if (NULL == s)
s = new SkColorShader(0);
// zap our previous shader, if present
SkSafeUnref(m_gradient->m_shader);
m_gradient->m_shader = s;
m_gradient->m_tileMode = mode;
SkMatrix matrix = m_gradientSpaceTransformation;
s->setLocalMatrix(matrix);
return s;
}
SkGLDevice::TexCache* SkGLDevice::setupGLPaintShader(const SkPaint& paint) {
SkGL::SetPaint(paint);
SkShader* shader = paint.getShader();
if (NULL == shader) {
return NULL;
}
if (!shader->setContext(this->accessBitmap(false), paint, this->matrix())) {
return NULL;
}
SkBitmap bitmap;
SkMatrix matrix;
SkShader::TileMode tileModes[2];
if (!shader->asABitmap(&bitmap, &matrix, tileModes)) {
return NULL;
}
bitmap.lockPixels();
if (!bitmap.readyToDraw()) {
return NULL;
}
// see if we've already cached the bitmap from the shader
SkPoint max;
GLuint name;
TexCache* cache = SkGLDevice::LockTexCache(bitmap, &name, &max);
// the lock has already called glBindTexture for us
SkGL::SetTexParams(paint.isFilterBitmap(), tileModes[0], tileModes[1]);
// since our texture coords will be in local space, we wack the texture
// matrix to map them back into 0...1 before we load it
SkMatrix localM;
if (shader->getLocalMatrix(&localM)) {
SkMatrix inverse;
if (localM.invert(&inverse)) {
matrix.preConcat(inverse);
}
}
matrix.postScale(max.fX / bitmap.width(), max.fY / bitmap.height());
glMatrixMode(GL_TEXTURE);
SkGL::LoadMatrix(matrix);
glMatrixMode(GL_MODELVIEW);
// since we're going to use a shader/texture, we don't want the color,
// just its alpha
SkGL::SetAlpha(paint.getAlpha());
// report that we have setup the texture
return cache;
}
void addBitmapFromPaint(const SkPaint& paint) {
SkShader* shader = paint.getShader();
if (shader) {
SkBitmap bm;
// Check whether the shader is a gradient in order to short-circuit
// call to asABitmap to prevent generation of bitmaps from
// gradient shaders, which implement asABitmap.
if (SkShader::kNone_GradientType == shader->asAGradient(NULL) &&
shader->asABitmap(&bm, NULL, NULL)) {
fPRSet->add(bm.pixelRef());
}
}
}
static cairo_int_status_t
_cairo_skia_surface_fill (void *asurface,
cairo_operator_t op,
const cairo_pattern_t *source,
cairo_path_fixed_t *path,
cairo_fill_rule_t fill_rule,
double tolerance,
cairo_antialias_t antialias,
cairo_clip_t *clip)
{
cairo_skia_surface_t *surface = (cairo_skia_surface_t *) asurface;
cairo_image_surface_t *image = NULL;
cairo_status_t status;
void *image_extra;
status = _cairo_surface_clipper_set_clip (&surface->clipper, clip);
if (unlikely (status))
return (cairo_int_status_t) status;
SkPaint paint;
paint.setStyle (SkPaint::kFill_Style);
SkColor color;
if (pattern_to_sk_color (source, color)) {
paint.setColor (color);
} else {
SkShader *shader = pattern_to_sk_shader (surface,
source, &image, &image_extra);
if (shader == NULL)
return UNSUPPORTED("pattern to shader conversion");
paint.setShader (shader);
shader->unref ();
paint.setFilterBitmap (pattern_filter_to_sk (source));
}
paint.setXfermodeMode (operator_to_sk (op));
paint.setAntiAlias (antialias != CAIRO_ANTIALIAS_NONE);
surface->canvas->drawPath (path_to_sk (path, fill_rule), paint);
if (image != NULL) {
_cairo_surface_release_source_image (&surface->base,
image, image_extra);
}
return CAIRO_INT_STATUS_SUCCESS;
}
static void copybits(SkCanvas* canvas, const SkBitmap& bm, const SkRect& dst, const SkPaint& paint)
{
SkRect src;
SkMatrix matrix;
src.set(0, 0, SkIntToScalar(bm.width()), SkIntToScalar(bm.height()));
if (matrix.setRectToRect(src, dst))
{
SkPaint p(paint);
SkShader* shader = SkShader::CreateBitmapShader(bm, false, SkPaint::kNo_FilterType, SkShader::kClamp_TileMode);
p.setShader(shader)->unref();
shader->setLocalMatrix(matrix);
canvas->drawRect(dst, p);
}
}
