本文整理汇总了C++中GrTexture::releaseRenderTarget方法的典型用法代码示例。如果您正苦于以下问题：C++ GrTexture::releaseRenderTarget方法的具体用法？C++ GrTexture::releaseRenderTarget怎么用？C++ GrTexture::releaseRenderTarget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GrTexture的用法示例。
在下文中一共展示了GrTexture::releaseRenderTarget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: copyToTexturePixelRef
static SkGrPixelRef* copyToTexturePixelRef(GrTexture* texture, const SkIRect* subset) {
if (NULL == texture) {
return NULL;
}
GrContext* context = texture->getContext();
if (NULL == context) {
return NULL;
}
GrTextureDesc desc;
SkIPoint pointStorage;
SkIPoint* topLeft;
if (subset != NULL) {
SkASSERT(SkIRect::MakeWH(texture->width(), texture->height()).contains(*subset));
// Create a new texture that is the size of subset.
desc.fWidth = subset->width();
desc.fHeight = subset->height();
pointStorage.set(subset->x(), subset->y());
topLeft = &pointStorage;
} else {
desc.fWidth = texture->width();
desc.fHeight = texture->height();
topLeft = NULL;
}
desc.fFlags = kRenderTarget_GrTextureFlagBit | kNoStencil_GrTextureFlagBit;
desc.fConfig = texture->config();
SkImageInfo info;
if (!GrPixelConfig2ColorType(desc.fConfig, &info.fColorType)) {
return NULL;
}
info.fWidth = desc.fWidth;
info.fHeight = desc.fHeight;
info.fAlphaType = kPremul_SkAlphaType;
GrTexture* dst = context->createUncachedTexture(desc, NULL, 0);
if (NULL == dst) {
return NULL;
}
context->copyTexture(texture, dst->asRenderTarget(), topLeft);
// TODO: figure out if this is responsible for Chrome canvas errors
#if 0
// The render texture we have created (to perform the copy) isn't fully
// functional (since it doesn't have a stencil buffer). Release it here
// so the caller doesn't try to render to it.
// TODO: we can undo this release when dynamic stencil buffer attach/
// detach has been implemented
dst->releaseRenderTarget();
#endif
SkGrPixelRef* pixelRef = SkNEW_ARGS(SkGrPixelRef, (info, dst));
SkSafeUnref(dst);
return pixelRef;
}