SkBitmapDevice::SkBitmapDevice(const SkBitmap& bitmap)
: INHERITED(bitmap.info(), SkSurfaceProps(SkSurfaceProps::kLegacyFontHost_InitType))
, fBitmap(bitmap)
{
SkASSERT(valid_for_bitmap_device(bitmap.info(), nullptr));
fBitmap.lockPixels();
}
static SkSurfaceProps make_props(SkSurface::TextRenderMode trm) {
uint32_t propsFlags = 0;
if (SkSurface::kDistanceField_TextRenderMode == trm) {
propsFlags |= SkSurfaceProps::kUseDistanceFieldFonts_Flag;
}
return SkSurfaceProps(propsFlags, SkSurfaceProps::kLegacyFontHost_InitType);
}
void SkWindow::setColorType(SkColorType ct, SkColorProfileType pt) {
const SkImageInfo& info = fBitmap.info();
this->resize(SkImageInfo::Make(info.width(), info.height(), ct, kPremul_SkAlphaType, pt));
// Set the global flag that enables or disables "legacy" mode, depending on our format.
// With sRGB 32-bit or linear FP 16, we turn on gamma-correct handling of inputs:
SkSurfaceProps props = this->getSurfaceProps();
uint32_t flags = (props.flags() & ~SkSurfaceProps::kAllowSRGBInputs_Flag) |
(SkColorAndProfileAreGammaCorrect(ct, pt) ? SkSurfaceProps::kAllowSRGBInputs_Flag : 0);
this->setSurfaceProps(SkSurfaceProps(flags, props.pixelGeometry()));
}
bool SkPictureImageGenerator::onGetPixels(const SkImageInfo& info, void* pixels, size_t rowBytes,
SkPMColor ctable[], int* ctableCount) {
if (ctable || ctableCount) {
return false;
}
SkBitmap bitmap;
if (!bitmap.installPixels(info, pixels, rowBytes)) {
return false;
}
bitmap.eraseColor(SK_ColorTRANSPARENT);
SkCanvas canvas(bitmap, SkSurfaceProps(0, kUnknown_SkPixelGeometry));
canvas.drawPicture(fPicture.get(), &fMatrix, fPaint.getMaybeNull());
return true;
}
SkSVGDevice::SkSVGDevice(const SkISize& size, SkXMLWriter* writer)
: INHERITED(SkSurfaceProps(0, kUnknown_SkPixelGeometry))
, fWriter(writer)
, fResourceBucket(SkNEW(ResourceBucket)) {
SkASSERT(writer);
fLegacyBitmap.setInfo(SkImageInfo::MakeUnknown(size.width(), size.height()));
fWriter->writeHeader();
// The root <svg> tag gets closed by the destructor.
fRootElement.reset(SkNEW_ARGS(AutoElement, ("svg", fWriter)));
fRootElement->addAttribute("xmlns", "http://www.w3.org/2000/svg");
fRootElement->addAttribute("xmlns:xlink", "http://www.w3.org/1999/xlink");
fRootElement->addAttribute("width", size.width());
fRootElement->addAttribute("height", size.height());
}
bool SkPictureImageGenerator::onGenerateScaledPixels(const SkISize& scaledSize,
const SkIPoint& scaledOrigin,
const SkPixmap& scaledPixels) {
int w = scaledSize.width();
int h = scaledSize.height();
const SkScalar scaleX = SkIntToScalar(w) / this->getInfo().width();
const SkScalar scaleY = SkIntToScalar(h) / this->getInfo().height();
SkMatrix matrix = SkMatrix::MakeScale(scaleX, scaleY);
matrix.postTranslate(-SkIntToScalar(scaledOrigin.x()), -SkIntToScalar(scaledOrigin.y()));
SkBitmap bitmap;
if (!bitmap.installPixels(scaledPixels)) {
return false;
}
bitmap.eraseColor(SK_ColorTRANSPARENT);
SkCanvas canvas(bitmap, SkSurfaceProps(0, kUnknown_SkPixelGeometry));
matrix.preConcat(fMatrix);
canvas.drawPicture(fPicture, &matrix, fPaint.getMaybeNull());
return true;
}
SkBitmapDevice* SkBitmapDevice::Create(const SkImageInfo& info) {
return Create(info, SkSurfaceProps(SkSurfaceProps::kLegacyFontHost_InitType));
}
SkBitmapDevice::SkBitmapDevice(const SkBitmap& bitmap)
: INHERITED(SkSurfaceProps(SkSurfaceProps::kLegacyFontHost_InitType))
, fBitmap(bitmap) {
SkASSERT(valid_for_bitmap_device(bitmap.info(), NULL));
}
DEF_GPUTEST(ReadWriteAlpha, reporter, factory) {
for (int type = 0; type < GrContextFactory::kLastGLContextType; ++type) {
GrContextFactory::GLContextType glType = static_cast<GrContextFactory::GLContextType>(type);
if (!GrContextFactory::IsRenderingGLContext(glType)) {
continue;
}
GrContext* context = factory->get(glType);
if (NULL == context) {
continue;
}
unsigned char textureData[X_SIZE][Y_SIZE];
memset(textureData, 0, X_SIZE * Y_SIZE);
GrTextureDesc desc;
// let Skia know we will be using this texture as a render target
desc.fFlags = kRenderTarget_GrTextureFlagBit;
// it is a single channel texture
desc.fConfig = kAlpha_8_GrPixelConfig;
desc.fWidth = X_SIZE;
desc.fHeight = Y_SIZE;
// We are initializing the texture with zeros here
GrTexture* texture = context->createUncachedTexture(desc, textureData, 0);
if (!texture) {
return;
}
SkAutoTUnref<GrTexture> au(texture);
// create a distinctive texture
for (int y = 0; y < Y_SIZE; ++y) {
for (int x = 0; x < X_SIZE; ++x) {
textureData[x][y] = x*Y_SIZE+y;
}
}
// upload the texture
texture->writePixels(0, 0, desc.fWidth, desc.fHeight, desc.fConfig,
textureData, 0);
unsigned char readback[X_SIZE][Y_SIZE];
// clear readback to something non-zero so we can detect readback failures
memset(readback, 0x1, X_SIZE * Y_SIZE);
// read the texture back
texture->readPixels(0, 0, desc.fWidth, desc.fHeight, desc.fConfig,
readback, 0);
// make sure the original & read back versions match
bool match = true;
for (int y = 0; y < Y_SIZE; ++y) {
for (int x = 0; x < X_SIZE; ++x) {
if (textureData[x][y] != readback[x][y]) {
match = false;
}
}
}
REPORTER_ASSERT(reporter, match);
// Now try writing on the single channel texture
SkAutoTUnref<SkBaseDevice> device(SkGpuDevice::Create(texture->asRenderTarget(),
SkSurfaceProps(SkSurfaceProps::kLegacyFontHost_InitType)));
SkCanvas canvas(device);
SkPaint paint;
const SkRect rect = SkRect::MakeLTRB(-10, -10, X_SIZE + 10, Y_SIZE + 10);
paint.setColor(SK_ColorWHITE);
canvas.drawRect(rect, paint);
texture->readPixels(0, 0, desc.fWidth, desc.fHeight, desc.fConfig,
readback, 0);
match = true;
for (int y = 0; y < Y_SIZE; ++y) {
for (int x = 0; x < X_SIZE; ++x) {
if (0xFF != readback[x][y]) {
match = false;
}
}
}
REPORTER_ASSERT(reporter, match);
}
}
static SkSurfaceProps copy_or_safe_defaults(const SkSurfaceProps* props) {
return props ? *props : SkSurfaceProps(0, kUnknown_SkPixelGeometry);
}
FakeDevice() : INHERITED(make_bm(100, 100), SkSurfaceProps(0, kUnknown_SkPixelGeometry)) {
}
