本文整理汇总了C++中GrContext::getMaxRenderTargetSize方法的典型用法代码示例。如果您正苦于以下问题：C++ GrContext::getMaxRenderTargetSize方法的具体用法？C++ GrContext::getMaxRenderTargetSize怎么用？C++ GrContext::getMaxRenderTargetSize使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类GrContext的用法示例。
在下文中一共展示了GrContext::getMaxRenderTargetSize方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: testOne
void TestResult::testOne() {
sk_sp<SkPicture> pic;
{
SkString d;
d.printf(" {%d, \"%s\"},", fDirNo, fFilename);
SkString path = make_filepath(fDirNo, IN_DIR, fFilename);
SkFILEStream stream(path.c_str());
if (!stream.isValid()) {
SkDebugf("invalid stream %s\n", path.c_str());
goto finish;
}
if (fTestStep == kEncodeFiles) {
size_t length = stream.getLength();
SkTArray<char, true> bytes;
bytes.push_back_n(length);
stream.read(&bytes[0], length);
stream.rewind();
SkString wPath = make_filepath(0, outSkpDir, fFilename);
SkFILEWStream wStream(wPath.c_str());
wStream.write(&bytes[0], length);
wStream.flush();
}
pic = SkPicture::MakeFromStream(&stream);
if (!pic) {
SkDebugf("unable to decode %s\n", fFilename);
goto finish;
}
int pWidth = pic->width();
int pHeight = pic->height();
int pLargerWH = SkTMax(pWidth, pHeight);
GrContextFactory contextFactory;
#ifdef SK_BUILD_FOR_WIN
GrContext* context = contextFactory.get(kAngle);
#else
GrContext* context = contextFactory.get(kNative);
#endif
if (nullptr == context) {
SkDebugf("unable to allocate context for %s\n", fFilename);
goto finish;
}
int maxWH = context->getMaxRenderTargetSize();
int scale = 1;
while (pLargerWH / scale > maxWH) {
scale *= 2;
}
SkBitmap bitmap;
SkIPoint dim;
do {
dim.fX = (pWidth + scale - 1) / scale;
dim.fY = (pHeight + scale - 1) / scale;
bool success = bitmap.allocN32Pixels(dim.fX, dim.fY);
if (success) {
break;
}
SkDebugf("-%d-", scale);
} while ((scale *= 2) < 256);
if (scale >= 256) {
SkDebugf("unable to allocate bitmap for %s (w=%d h=%d) (sw=%d sh=%d)\n",
fFilename, pWidth, pHeight, dim.fX, dim.fY);
return;
}
SkCanvas skCanvas(bitmap);
drawPict(pic, &skCanvas, fScaleOversized ? scale : 1);
GrTextureDesc desc;
desc.fConfig = kRGBA_8888_GrPixelConfig;
desc.fFlags = kRenderTarget_GrTextureFlagBit;
desc.fWidth = dim.fX;
desc.fHeight = dim.fY;
desc.fSampleCnt = 0;
sk_sp<GrTexture> texture(context->createUncachedTexture(desc, nullptr, 0));
if (!texture) {
SkDebugf("unable to allocate texture for %s (w=%d h=%d)\n", fFilename,
dim.fX, dim.fY);
return;
}
SkGpuDevice grDevice(context, texture.get());
SkCanvas grCanvas(&grDevice);
drawPict(pic.get(), &grCanvas, fScaleOversized ? scale : 1);
SkBitmap grBitmap;
grBitmap.allocPixels(grCanvas.imageInfo());
grCanvas.readPixels(&grBitmap, 0, 0);
if (fTestStep == kCompareBits) {
fPixelError = similarBits(grBitmap, bitmap);
SkMSec skTime = timePict(pic, &skCanvas);
SkMSec grTime = timePict(pic, &grCanvas);
fTime = skTime - grTime;
} else if (fTestStep == kEncodeFiles) {
SkString pngStr = make_png_name(fFilename);
const char* pngName = pngStr.c_str();
writePict(grBitmap, outGrDir, pngName);
writePict(bitmap, outSkDir, pngName);
}
}
}