site_archiver@lists.apple.com Delivered-To: pro-apps-dev@lists.apple.com 3rd Party Developers, So my questions to developers are these: Thanks, Darrin -- Darrin Cardani dcardani@apple.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.ap... I'd like to get a feel for how developers are using the -frameSetup::: method. I'm looking at a bug about software rendering, and it occurred to me that the current model for -frameSetup::: is flawed. The current situation: Motion (and I would bet FCP) currently call - frameSetup::: once per frame right before calling -renderOutput:::. Because -frameSetup::: is where the plugin tells the host app whether the plugin can render in hardware or software, we don't know that information at any other time than right before the plugin renders. So when we try to figure out if the output is going to be small enough to fit in VRAM, we don't yet know if the plugin will actually be using any VRAM. (i.e. if it's software, it likely won't be.) So in looking to the (far) future, I'm wondering if it would be a good idea to either split apart -frameSetup::: which allows your plugin to allocate memory and do any other necessary setup before rendering, and asking the plugin whether it's going to render in hardware or software, or if it would be reasonable to leave it as is, but call - frameSetup::: (and of course -frameCleanup) in more places. 1) In general, do you do much setup in -frameSetup:::? If so, what sorts of things are you doing? (Allocating memory, pBuffers, etc? Just doing some quick calcs?) 2) Do your filters generally work only in either hardware or software (but not both), or do your filters generally make a decision based on settings (like 8, 16, 32 bit rendering, frame size, etc.) to decide whether to render in hardware and/or software? In other words, do you generally hardcode the values for canRenderHardware/canRenderSoftware, or is there generally logic to determine what they should be set to? This email sent to site_archiver@lists.apple.com