GS/HW: Reduce number of copies for HDR #12254
Open
+462
−167
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Description of Changes
Tries to reduce the number of copies for HDR draws.
Rationale behind Changes
Master would copy the render target to a new texture, draw, then copy back, every single time, but a lot of games do a lot of separate draws in a row to the same target, so it's better to keep it in one place until the end of the chain. This PR will keep it HDR as long as possible before converting back, hugely reducing copies and render passes in some cases.
TL;DR: Makes some games go brr more
Suggested Testing Steps
Test the games listed below (sorry for the names)
Slightly Cherry Picked Reduction Results from Vulkan: