/**
* Write the contents of the surface proxy to a PNG. Returns true if successful.
* @param filename Full path to desired file
*/
static bool save_pixels(GrContext* context, GrSurfaceProxy* sProxy, const char* filename) {
if (!sProxy) {
return false;
}
SkImageInfo ii = SkImageInfo::Make(sProxy->width(), sProxy->height(),
kRGBA_8888_SkColorType, kPremul_SkAlphaType);
SkBitmap bm;
if (!bm.tryAllocPixels(ii)) {
return false;
}
sk_sp<GrSurfaceContext> sContext(context->contextPriv().makeWrappedSurfaceContext(
sk_ref_sp(sProxy),
nullptr));
if (!sContext || !sContext->asTextureProxy()) {
return false;
}
bool result = sContext->readPixels(ii, bm.getPixels(), bm.rowBytes(), 0, 0);
if (!result) {
SkDebugf("------ failed to read pixels for %s\n", filename);
return false;
}
// remove any previous version of this file
remove(filename);
SkFILEWStream file(filename);
if (!file.isValid()) {
SkDebugf("------ failed to create file: %s\n", filename);
remove(filename); // remove any partial file
return false;
}
if (!SkEncodeImage(&file, bm, SkEncodedImageFormat::kPNG, 100)) {
SkDebugf("------ failed to encode %s\n", filename);
remove(filename); // remove any partial file
return false;
}
return true;
}
sk_sp<SkImage> SkImage_Gpu::onMakeSubset(const SkIRect& subset) const {
GrSurfaceDesc desc = fProxy->desc();
desc.fWidth = subset.width();
desc.fHeight = subset.height();
sk_sp<GrSurfaceContext> sContext(fContext->contextPriv().makeDeferredSurfaceContext(
desc,
SkBackingFit::kExact,
fBudgeted));
if (!sContext) {
return nullptr;
}
if (!sContext->copy(fProxy.get(), subset, SkIPoint::Make(0, 0))) {
return nullptr;
}
// MDB: this call is okay bc we know 'sContext' was kExact
return sk_make_sp<SkImage_Gpu>(fContext, kNeedNewImageUniqueID,
fAlphaType, sContext->asTextureProxyRef(),
fColorSpace, fBudgeted);
}
BatchCreate::Result BatchCreate::addFormat(const xpr_tchar_t *aDir,
const xpr_tchar_t *aFormat,
xpr_size_t aCount)
{
XPR_ASSERT(aDir != XPR_NULL);
XPR_ASSERT(aFormat != XPR_NULL);
XPR_ASSERT(aCount > 0);
xpr::string sDir = aDir;
xpr::string sFormat = aFormat;
if (sDir[sDir.length()-1] != XPR_STRING_LITERAL('\\'))
{
sDir += XPR_STRING_LITERAL('\\');
}
if (mCreateType == CreateTypeTextFile)
{
sFormat += XPR_STRING_LITERAL(".txt");
}
Result sResult = ResultSucceeded;
xpr_size_t i = 0;
xpr_size_t sMaxNewLen;
xpr_bool_t sFolder = (mCreateType == CreateTypeFolder) ? XPR_TRUE : XPR_FALSE;
xpr_bool_t sAtLeastOneError = XPR_FALSE;
xpr::string sOrgFilePath;
xpr::string sOrgFileName;
xpr::string sOldFileName;
xpr::string sPath;
SYSTEMTIME sNowTime = {0,};
FormatSequence *sFormatSequence;
FileNameFormat sFileNameFormat;
ShortFormatParser &sShortFormatParser = SingletonManager::get<ShortFormatParser>();
sFormatSequence = new FormatSequence;
if (sShortFormatParser.parse(sFormat, *sFormatSequence) == XPR_FALSE)
{
XPR_SAFE_DELETE(sFormatSequence);
return ResultWrongFormat;
}
sFileNameFormat.add(sFormatSequence);
getLocalTime(sNowTime);
for (i = 0; i < aCount; ++i)
{
sMaxNewLen = XPR_MAX_PATH - sDir.length() - 1;
RenameContext sContext(sFolder,
sOrgFilePath,
sOrgFileName,
sOldFileName,
(xpr_sint_t)i,
sMaxNewLen,
sNowTime);
if (XPR_IS_FALSE(sFileNameFormat.rename(sContext)))
{
sAtLeastOneError = XPR_TRUE;
}
sPath = sDir + sContext.mNewFileName;
sResult = addPath(sPath);
if (sResult == ResultExcessPathLength)
{
break;
}
}
return sResult;
}
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ReadWriteAlpha, reporter, ctxInfo) {
GrContext* context = ctxInfo.grContext();
unsigned char alphaData[X_SIZE * Y_SIZE];
static const int kClearValue = 0x2;
bool match;
static const size_t kRowBytes[] = {0, X_SIZE, X_SIZE + 1, 2 * X_SIZE - 1};
{
GrSurfaceDesc desc;
desc.fFlags = kNone_GrSurfaceFlags;
desc.fConfig = kAlpha_8_GrPixelConfig; // it is a single channel texture
desc.fWidth = X_SIZE;
desc.fHeight = Y_SIZE;
// We are initializing the texture with zeros here
memset(alphaData, 0, X_SIZE * Y_SIZE);
sk_sp<GrTextureProxy> proxy(GrSurfaceProxy::MakeDeferred(context->resourceProvider(),
desc,
SkBudgeted::kNo,
alphaData, 0));
if (!proxy) {
ERRORF(reporter, "Could not create alpha texture.");
return;
}
sk_sp<GrSurfaceContext> sContext(context->contextPriv().makeWrappedSurfaceContext(
std::move(proxy), nullptr));
const SkImageInfo ii = SkImageInfo::MakeA8(X_SIZE, Y_SIZE);
sk_sp<SkSurface> surf(SkSurface::MakeRenderTarget(context, SkBudgeted::kNo, ii));
// create a distinctive texture
for (int y = 0; y < Y_SIZE; ++y) {
for (int x = 0; x < X_SIZE; ++x) {
alphaData[y * X_SIZE + x] = y*X_SIZE+x;
}
}
for (auto rowBytes : kRowBytes) {
// upload the texture (do per-rowbytes iteration because we may overwrite below).
bool result = sContext->writePixels(ii, alphaData, 0, 0, 0);
REPORTER_ASSERT_MESSAGE(reporter, result, "Initial A8 writePixels failed");
size_t nonZeroRowBytes = rowBytes ? rowBytes : X_SIZE;
std::unique_ptr<uint8_t[]> readback(new uint8_t[nonZeroRowBytes * Y_SIZE]);
// clear readback to something non-zero so we can detect readback failures
memset(readback.get(), kClearValue, nonZeroRowBytes * Y_SIZE);
// read the texture back
result = sContext->readPixels(ii, readback.get(), rowBytes, 0, 0);
REPORTER_ASSERT_MESSAGE(reporter, result, "Initial A8 readPixels failed");
// make sure the original & read back versions match
SkString msg;
msg.printf("rb:%d A8", SkToU32(rowBytes));
validate_alpha_data(reporter, X_SIZE, Y_SIZE, readback.get(), nonZeroRowBytes,
alphaData, msg);
// Now try writing to a single channel surface (if we could create one).
if (surf) {
SkCanvas* canvas = surf->getCanvas();
SkPaint paint;
const SkRect rect = SkRect::MakeLTRB(-10, -10, X_SIZE + 10, Y_SIZE + 10);
paint.setColor(SK_ColorWHITE);
canvas->drawRect(rect, paint);
memset(readback.get(), kClearValue, nonZeroRowBytes * Y_SIZE);
result = surf->readPixels(ii, readback.get(), nonZeroRowBytes, 0, 0);
REPORTER_ASSERT_MESSAGE(reporter, result, "A8 readPixels after clear failed");
match = true;
for (int y = 0; y < Y_SIZE && match; ++y) {
for (int x = 0; x < X_SIZE && match; ++x) {
uint8_t rbValue = readback.get()[y * nonZeroRowBytes + x];
if (0xFF != rbValue) {
ERRORF(reporter,
"Failed alpha readback after clear. Expected: 0xFF, Got: 0x%02x"
" at (%d,%d), rb:%d", rbValue, x, y, SkToU32(rowBytes));
match = false;
}
}
}
}
}
}
static const GrPixelConfig kRGBAConfigs[] {
kRGBA_8888_GrPixelConfig,
kBGRA_8888_GrPixelConfig,
kSRGBA_8888_GrPixelConfig
};
for (int y = 0; y < Y_SIZE; ++y) {
for (int x = 0; x < X_SIZE; ++x) {
alphaData[y * X_SIZE + x] = y*X_SIZE+x;
}
}
const SkImageInfo dstInfo = SkImageInfo::Make(X_SIZE, Y_SIZE,
kAlpha_8_SkColorType,
kPremul_SkAlphaType);
// Attempt to read back just alpha from a RGBA/BGRA texture. Once with a texture-only src and
// once with a render target.
for (auto config : kRGBAConfigs) {
for (int rt = 0; rt < 2; ++rt) {
GrSurfaceDesc desc;
desc.fFlags = rt ? kRenderTarget_GrSurfaceFlag : kNone_GrSurfaceFlags;
desc.fConfig = config;
desc.fWidth = X_SIZE;
desc.fHeight = Y_SIZE;
uint32_t rgbaData[X_SIZE * Y_SIZE];
// Make the alpha channel of the rgba texture come from alphaData.
for (int y = 0; y < Y_SIZE; ++y) {
for (int x = 0; x < X_SIZE; ++x) {
rgbaData[y * X_SIZE + x] = GrColorPackRGBA(6, 7, 8, alphaData[y * X_SIZE + x]);
}
}
sk_sp<GrTextureProxy> proxy =
GrSurfaceProxy::MakeDeferred(context->resourceProvider(), desc, SkBudgeted::kNo,
rgbaData, 0);
if (!proxy) {
// We always expect to be able to create a RGBA texture
if (!rt && kRGBA_8888_GrPixelConfig == desc.fConfig) {
ERRORF(reporter, "Failed to create RGBA texture.");
}
continue;
}
sk_sp<GrSurfaceContext> sContext = context->contextPriv().makeWrappedSurfaceContext(
std::move(proxy), nullptr);
for (auto rowBytes : kRowBytes) {
size_t nonZeroRowBytes = rowBytes ? rowBytes : X_SIZE;
std::unique_ptr<uint8_t[]> readback(new uint8_t[nonZeroRowBytes * Y_SIZE]);
// Clear so we don't accidentally see values from previous iteration.
memset(readback.get(), kClearValue, nonZeroRowBytes * Y_SIZE);
// read the texture back
bool result = sContext->readPixels(dstInfo, readback.get(), rowBytes, 0, 0);
REPORTER_ASSERT_MESSAGE(reporter, result, "8888 readPixels failed");
// make sure the original & read back versions match
SkString msg;
msg.printf("rt:%d, rb:%d 8888", rt, SkToU32(rowBytes));
validate_alpha_data(reporter, X_SIZE, Y_SIZE, readback.get(), nonZeroRowBytes,
alphaData, msg);
}
}
}
}