- Queueing commands on the offloader is a good idea but unfortunately
page faults can still happen causing a cyclic dependency and eventual
deadlock. Characterized by a vk::wait_for_event timed out error
accompanied by severe hitching.
- Drain the fault-able commands before pushing a submit operation to the
queue. If a fault is in progress, bypass the queue system and submit
raw. Technically this is incorrect but there isn't much that can be
done about it right now.
- When using partial results on NVIDIA, a non-zero result is returned even when the draw is fully occluded.
This, I believe, violates spec which says the partial result shall be between 0 and the final result.
- Adds color interpolation and modulation pass and refactors the code a
bit. Elements with this pass applied have their color modulated by the
animated color from the pass. Modulation transform is multiplicative.
Instead of speed, direction and distance, the user now specifies
start/end offsets and how much time the transition should take.
Fixes:
- Stuttering caused from framerate estimation.
- An edge case where animations would go over their supposed limit.
Adds:
- The ability to specify arbitrary easing functions for the animations
- Implemented quadratic ease in and ease out and cubic ease in/out.
- Usage of cubic ease in/out in the trophy notification
- Slightly increases the size of the trophy dialog and the font size.
The old dimensions did not work with some libre fonts causing
alignment errors and other problems.
- Adds animation support. This commit adds the base framework and
implements a translate animation used to slide elements around the
screen. This is then used to implement the sliding animation for the
trophy notification.
- Properly synchronize DMA transfers when handling RSX pipeline
barriers. Texture read barrier is used to signify completion of DMA
routines and is often used to signal that Cell can overwrite vertex
data!
* Prefer default initializer over std::memset 0 when possible and more readable.
* Use std::format in trophy files name obtaining.
* Use vm::ptr<>::operator bool() instead of comparing vm::ptr to vm::null or using addr().
* Add a few std::memset calls in hle where it matters (or in some places just to document an actual firmware memcpy call).
- A few nagging issues remain, specifically that partial command stream
largely caused by poor synchronization structures for partial CS flush
and also the fact that occlusion map entries wait on a command buffer
and not an EID!
- Prefer lazy retire model. Sync commands are sent out and the reports will be
retired when they are available without forcing.
- To make this work with conditional rendering, hardware support is
required where the backend will automatically determine visibility by
itself during rendering.
Round-to-nearest integral based division, optimized for unsigned integral.
Used in sceNpTrophyGetGameProgress.
Do not allow signed values for aligned_div(), align().
This implementation optimises correctly on all relevant compilers,
unlike GSL’s which gave extremely slow code on any compiler other than
MSVC.
Supersedes #6948.
- When the point sprite flag is set, overrides the input similar to the
2D mask. The returned X and Y values are always the gl_PointCoord values
for the fragment.
- Stacks with the 2D mask to override the z and w coordinates.
- Adhere to workgroup count limits as exposed by the GPU vendor.
They already execute properly even when going beyond the limits but this removes validation noise.
- Fix invocation counts for deswizzle kernel. The count was incorrect if blocksize was not 4, causing a bunch of useless work to be done.
- Handles all LODs per layer meaning cubemaps are now fully handled in 6 passes instead of 6 * (log2(width)) passes.
- Handles all LODs of a 3D texture in one pass as well.
- The improvements do warrant dropping down the number of allowed compute invocations a bit
- Remove use of uniform buffers for compute static data. Use push
constants instead.
- Minor touchups to the deswizzle code to avoid redundant data copies.
- Allow delaying report flushes triggered by image_in or buffer_notify
- When the report is ready, all the delayed transfers will automatically
be done.
- TODO: Make this configurable?
* rsx: Optimise primitive_restart::upload_untouched() with SSE4.1
This optimisation is only applied when skip_restart is false.
I’ve only tested the u16 codepath, as it is the one used in NieR.
In some very unscientific profiling, this function used to take 2.76% of
the total frame time at the save point of the port town, it now takes
about 0.40%.
* rsx: Mark all SSE4.1 functions with attributes on gcc and clang
This assures the compiler we will take care of only calling these
functions after having checked that the CPU does support these
instructions.
* rsx: Add an AVX2 implementation of primitive restart ibo upload
* rsx: Remove redefinition of SSE4.1 instructions
Now that clang is aware that our functions are compiled with SSE4.1, it
lets us generate this code using its intrinsics.
* rsx: Optimise vector to scalar conversion
This is done using minpos and srli intrinsics and generate less code
than before.
Thanks Nekotekina for the suggestion!
- Simplify active instance management. While multicontext support will
be required in future, this is better done with multiple logical devices
rather than multiple instances.
- Destroy the WSI surface on exit
- Enable depthBoundsTest explicitly. TODO: Properly check for supported
features.
subresource_layout::dim_in_texel
- These two are not always linked when working with compressed textures.
The actual texels extend past the actual size of the image if the size
is not aligned. e.g if height is 1, the real height is 4, but its not
possible to determine this from the aligned size. It could be 1, 2, 3 or
4 for example.
- Fixes image out-of-bounds writes when uploading from CPU
This lowers the relative cost of this function from ~2.25% to ~1.80% on
gcc 9 which I found quite surprising, some of it probably gets inlined
better in the callers, but I haven’t been able to isolate which parts.
The current behaviour when going fullscreen from windowed was to keep
the previous size of the swapchain, with black borders on all sides,
which looks quite ugly.
The root of this issue is that rpcs3 only checks for frame resize if
vkQueuePresent() returns VK_SUBOPTIMAL_KHR, which drivers can’t do on
Wayland, see https://gitlab.freedesktop.org/mesa/mesa/issues/1979
- Noticed a glitch on AMD hw and windows drivers where discard seems to affect entire 4x4 cells.
- Dead fragments (outside the primitive boundary) could have their discards trigger as they do not have proper access to variables.
- This introduces dead fragments along triangle edges, causing a diagonal line pattern across the screen that is very annoying.
- Renormalizes arbitrary N-bit values as 8-bit normalized.
- NV hardware performs integer normalization at 8 bits if the size is less than 8.
- This can cause significant arithmetic drift because the error is multiplied by a huge number when sampling.
* allow sys_rsx_device_map to be called twice: in this case the DEVICE address retrived from the previous call returned
* Add ENOMEM checks for sys_rsx_memory_allocate and sys_rsx_context_allocate
* add EINVAL check for sys_rsx_context_allocate if memory handle is not found
* Separate sys_rsx_device_map allocation from sys_rsx_context_allocate's
* Implement sys_rsx_memory_free; used by cellGcmInit upon failure
* Added context_id checks
* Throw if sys_rsx_context_allocate was called twice.
- If either source data or dest is a render target, do image operations on the GPU same as before
- If swizzle is desired, use CPU fallback
- If no scaling and no format conversion is required, use CPU fallback
- If scaling is desired and the transfer target is in local memory, use the GPU
- When doing trivial copies, use the routine in rsx_methods instead of
duplicating code. Also has the benefit of better range checking.
- When commiting a block as fbo, keep blit_dst data as well.
- Avoids removing (and losing data from) blit targets that just happen to share a page with a framebuffer.
- Uncacheable resources can be reused as soon as they're made visible to the draw call.
- Since they're likely to be reused every draw call until the shader changes, it is important to reuse as much as possible
- If a stale reference is left lying around (e.g the texture bound to
depth has been deleted and we attach a color image) no operations
actually take place. glCheckFramebufferStatus also does not catch this
problem.
- Sometimes program-point-size is enabled, but the vs does not actually
write to the point size register. In this case, pass the incoming point
size along instead of the default register init.
- When compiling LLVM objects, it is possible to starve the driver thread and cause the timeouts to trigger
- Observed in RE6 when using SPU LLVM since the game generates a very large number of objects "infinitely"
- Allows frameskipping to occur naturally if RSX thread is bombarded with flip requests but just jumping to the last one if possible
- See request_emu_flip() for async frame submission and implicit skipping
- Also allows display queue to fill faster than the flip thread can drain the queue
Move se_t and se_storage to util/endian.hpp
Use single template instead of two specializations.
Add minor optimization for MSVC.
Remove v128 dependency.
Try to enable intrinsics for unaligned data.
Fix minor bug in u16/u32/u64 specializations.
- Separate displayed statistics from actual backend statistics.
Allows asynchronous flipping to work correctly as it just uses display stats.
The real stats are used by the frame scope marker to determine behavior like engaging the FIFO optimizer or skipping draw calls correctly.
- Add an explicit frame scope marker tied in with the queue_prepare command
Since queue_prepare is emitted at the end of a frame, it can be used as end-of-frame in games that emit this
- If this command is not emitted, fifo flatenner and frameskip will not work
- Calculate exact sizes when doing hit tests to avoid false negatives
- Defer page checking until actually require to do memory setup
- Introduce align2 helper to do non-pow2 alignments
- Allow use of intrinsics when SSSE3 and SSSE4.1 are not available in the build target environment
- Properly separate SSE4.1 code from SSSE3 code for some older proceessors without SSE4.1
- With harmonization between all texture types implemented, there is no difference between blit_engine_src and shader_read for supported formats
- Adds extra format filtering to ensure no conflicts when copying data
- While the mask for surface_a is at index 0, the surface cache expects the order to be maintained correctly!
Set the correct mask since surface store now checks each RTT individually
- Avoid silly broken tests due to queue_tag being called before pitch is initialized.
- Return actual memory range covered and exclude trailing padding.
- Coordinates in src are to be calculated with src_pitch, not required_pitch.
- This allows creating buffers with no MAP bits set which should ensure they are created for VRAM usage only
- TODO: Implement compute kernels to avoid software fallback mode for pack/unpack operations
- Fix 2D coordinate sampling of W coordinate.
W is actually HPOS.w and not 1. Z is however always 0.
- Optimize register usage a bit
Disassembling compiled SPV shows that global declaration results in less ops than using inout modifiers. Modifiers generate extra mov instructions.
- Fix reading of varying registers in FP
Different registers have different behavior
- Always write to varying registers. If a register is not written to, it is initialized to (0, 0, 0, 1)
- Reimplements two-sided lighting correctly without hacks
- Also bumps shader cache version
- Do not allow offloader to handle its own faults. Serialize them on RSX instead.
This approach introduces a GPU race condition that should be avoided with improved synchronization.
- TODO: Use proper GPU-side synchronization to avoid this situation
- Avoids memory appearing older when used for depth test without depth write
The write_barrier before the call will inherit new data but the tag will not update as no new information is added.
- Properly commit orphaned blocks not invalidating existing cache structures
- Do not ignore overwritten objects when commiting as unprotected fbo. Avoids stale references to invalidated surface objects.
- Load into memory as straightforward BGRA
- Fixes a bug in vulkan caused by byte shuffling in blit engine vs shader access
- Removes the need for memory shuffling when transferring into a rendertarget
- Implements render target data load (aka Read Color Buffer/Read Depth Buffer)
- Refactors vulkan surface barrier to be much cleaner.
- Removes redundant surface barrier invocations after doing a merged load
from surface cache.
- Adds explicit access modes when gathering surfaces from cache.
- Further improve aliased data preservation by unconditionally scanning.
Its is possible for cache aliasing to occur when doing memory split.
- Also sets up for RCB/RDB implementation
vkAcquireNextImageKHR can also return VK_SUBOPTIMAL_KHR and is non-fatal.
However, it's a good idea to still recreate the swap chain later to maintain
optimal presentation paths after temporary occlusion.
- ZCULL queue was updated to one-per-cb but the conditional render sync hint was not updated.
- Do not unconditionally flush the queue unless the upcoming ref is contained in the active CB.
- This avoids spamming queue flush, which frees up resources and improves performance
- Merge viewport raster window and scissor into one clipping region
- Viewport raster clip is different from viewport geometry clipping in
hardware as the latter is configurable separately
- After splitting, the sections may not be referenced at all for anything other than just pixel storage
- In such cases, either merge down or sample from the upstream source instead
- Texel borders are no longer actually supported in modern APIs
- Removes the border texels and uses border color instead which is incorrect but should work fine
- Tagged eventIDs can be used to safely delete resources that are no
longer used
- TODO: Expand gc to collect images as well
- TODO: Fix the texture cache to avoid over-allocating image resources
- Fix a typo in OpenAL
- Fix typo in cellHttp.h
- Unused variables in catch
- Use 64-bit shifts
- Use use_count with shared pointers, unique is depracated and getting removed
- Explicitly cast boolean to int
- Signed/unsigned issues with loop variables
- Fix missing return statement (the code path is unreachable, but compiler wants a return)
- */ ouside of comment
- Fix duplicate layout name
vm::spu max address was overflowing resulting in issues, so cast to u64 where needed. Fixes#6145.
Use vm::get_addr instead of manually substructing vm::base(0) from pointer in texture cache code.
Prefer std::atomic_thread_fence over _mm_?fence(), adjust usage to be more correct.
Used sequantially consistent ordering in semaphore_release for TSX path as well.
Improved memory ordering for sys_rsx_context_iounmap/map.
Fixed sync bugs in HLE gcm because of not using atomic instructions.
Use release memory barrier in lwsync for PPU LLVM, according to this xbox360 programming guide lwsync is a hw release memory barrier.
Also use release barrier where lwsync was originally used in liblv2 sys_lwmutex and cellSync.
Use acquire barrier for isync instruction, see https://devblogs.microsoft.com/oldnewthing/20180814-00/?p=99485
Prefer vm::ptr<>::ptr over vm::get_addr.
Prefer vm::_ptr/base over vm::g_base_addr with offset.
Added methods atomic_t<>::bts and atomic_t<>::btr .
Removed obsolute rsx:🧵:Read/WriteIO32 methods.
Removed wrong check in semaphore_release.
Added handling for PUTRx commands for RawSPU MFC proxy.
Prefer overloaded methods of v128 instead of _mm_... in VPKSHUS ppu interpreter precise.
Fixed more potential overflows that may result in wrong behaviour.
Added io/size alignment check for sys_rsx_context_iounmap.
Added rsx::constants::local_mem_base which represents RSX local memory base address.
Removed obsolute rsx:🧵:main_mem_addr/ioSize/ioAddress members.
-Indentation warnings
-prevent shift overflow
-This was declared extern in all contexts. Remove this for initialization
-Fix main return types. OH CANADA!
-Silence extraneos 'unused expression' warning
-Force use return value (warning)
-Remove tautological compare copy-pasta (char always < 256)
- Do not consume a slot every draw call, instead batch as many draws as possible
- Since renderpasses are dispatched per-draw-clause, keeping occlusion queries outside the renderpasses works fine
- If renderpasses are reorganized, occlusion tasks will have to be reorganized again
- Remove string comparisons from the hot-path!
- Use attribute streaming and push constants to avoid forcing a descriptor block copy every other draw call/pass.
While this isn't so bad on nvidia cards, it makes AMD cards a slideshow.
- When multithreaded RSX is enabled, the vertex cache just lowers performance
- The small cost of upload is paid by the asynchronous thread, allowing RSX to work optimally
- Multiple header files where missing #includes to other headers that
where used in the header. Correct header was included in correct
order in source files which caused everything to compile.
- Added missing #includes so header files correctly include all their
dependencies and fixes problems with IDEs being unable to parse
headers correctly due to missing symbols
- Add vm_locking.h and vm_reservation.h and move relevant functions
and types to these headers.
- Change include order and make vm_ptr.h, vm_var.h and vm_ref.h headers
usable invidually and them including vm.h instead of other way around
- Because usage of vm::ptr now requires including vm_ptr.h instead of
vm.h updated multiple #includes
- Added additional #includes to vm_reservation.h and vm_locking to
where vm::reservation_* and locking related functions are used
- Refactor overlays and resolve passes to support use of push constants instead of relying buffer map/unmap
- Add support for nvidia resolve (NV is the only vendor not supporting shader_stencil_export)
- TODO: Option to completely skip clamping in some architectures as it is not needed in most games
- Mostly affects older GPUs that do not have access to native fp16
- Removes a lot of wm_event code that was used to perform window management and is no longer needed.
- Significantly simplifies the vulkan code.
- Implements resource management when vulkan window is minimized to allow resources to be freed.
- Just use a semaphore and let the driver handle it instead of manual framepacing.
We lose framepace control but drivers have matured in the past few years so it should work fine.
- Ensures the current renderpass matches the image properties even when a cyclic reference is detected
- Solves SDK debug output error spam due to mismatching layouts and renderpasses
Intel ANV has been tested and verified to work without workaround
AMDVLK and the proprietary AMD driver have been confirmed to require workaround for window resizing
- Add double-buffered descriptor pools to avoid use-after-free situations
- Make descriptor pools more configurable
- Also adds in a hack to allow renderdoc to capture properly
- Use a simple queue to avoid redundant checks over all the contexts
- Poll queue if RSX pipe is idle
- Only check the queue when the frame context is dirty (after a queue operation)
- Reset descriptors at the start of the frame context to avoid having to synchronize mid-frame
- Fully synchronize if a descriptor reset is required mid-frame (spec compliance; also fixes flickering verts on some hardware)
- Transition attachments to LAYOUT_GENERAL in case of a feedback loop
- Fixes appearance of garbage along polygon edges in some
post-processing passes.
- Also reverse this transition when rendering goes back to normal
- Allows render targets to behave like stacked 3D views same as shader inputs are resolved
- Basically implements most of 'Read Color/Depth Buffers" option for 'free'.
- Allows splitting RTV/DSV resources if they are superceded by a partial surface
- Also allows intersecting new resources through the surface cache for proper inheritance from other scattered data
- TODO: Refactor bind_surface_as_rtt and bind_surface_as_ds to reduce asinine code duplication
TODO: Investigate the _s input modifier behaviour further, in case it can avoid generating zeroes from a MAD instruction.
x = MAD(+ve, -ve, -ve) with _s input modifier in BFBC expects result to be Non-zero
- Properly test for NaN and Inf when clamping down to fp16
- Optimize divsq a bit; mix(vec, vec, bvec) emits OpSelect which is what
we want here, instead of component-wise selection which is much slower.
- While mul(0, nan) = nan and 0 / 0 = nan, 0 / sqrt(0) = 0 because of hw
gremlins. normalize(0) is also nan so this behaviour does not work
around that particular case either which makes it even more baffling.
- The hw generates inaccurate values when doing perspective-correct
interpolation of vertex output attributes and makes the comparison (a ==
b) fail even when they are a fixed constant value.
- Increase equality tolerance when doing comparisons in fragment
shaders for NV cards only to work around this issue.
- Teepo fix
- The fixed-point D24S8 format does special Z clamping during compare which matches PS3 behaviour
- D32S8 is a floating point format and comparison with Dref > 1 always fails causing black edges/borders
- Improve support for float16_t by minimizing mixed inputs to functions
(ambiguous overloads)
- Minimize amount of downcasts in code by using opcode flags
- Re-enable float16_t support for vulkan
- Emulating f16 with f32 is not ideal and requires a lot of value clamping
- Using native data type can significantly improve performance and accuracy
- With openGL, check for the compatible extensions NV_gpu_shader5 and
AMD_gpu_shader_half_float
- With Vulkan, enable this functionality in the deviceFeatures if
applicable. (VK_KHR_shader_float16_int8 extension)
- Temporarily disable hw fp16 for vulkan
- When reverse scanning, offsets are inverted and offset value of 0 is logically equivalent to an offset of -1
- Add an explicit message if clipping happens to avoid silent errors/bugs
- Revert to using block metrics, but with optional per-channel decode
stage for the final transfer. Much cleaner than hacking in the width to
be in channels instead of blocks.
- Removes CPU-only transforms that broke GPU-side code.
-- Channels in GPU compute are laid out in cell-order, but CPU was uploading in favorable order and compensating with swizzles.
-- This leads to 2 different layouts depending on the location of the data (CPU vs GPU)
- Implement R8G8_R8B8 interleaved format decode
- General improvements
formats
- Allows D24S8 and D32S8 transport via typeless channels
- Allows uploading and downloading D24S8 data easily
- TODO: Implement optional byteswapping to fix flushed readbacks with
the same method
- Do not round up sub-pixel offsets, round down instead
- Do not allow incomplete sources for hw blit transfer
- Reimplement src clipping (slice_h)
- Check 'area' of incoming texels and correct for them before RTT lookup/transfer
- Filter out incomplete targets when performing RTT lookup (1 texel or less contribution)
- If a transfer writes to a RTT and depth mismatch happens, create a local target and the upload function will likely resolve between the two
- If a surface is rejected, reset the target region!
- Also refactors some bpp handling code
- Simplify texture intersection test to use a normalized/uniform coordinate space
- Fix broken bounds checking as well
- Batch dma transfers whenever possible and do them in one go
- vk: Always ensure that queued dma transfers are visible to the GPU before they are needed by the host
Requires a little refactoring to allow proper communication of the commandbuffer state
- vk: Code cleanup, the simplified mechanism makes it so that its not necessary to pass tons of args to methods
- vk: Fixup - do not forcefully do dma transfers on sections in an invalidation zone! They may have been speculated correctly already
- Properly wait for the buffer transfer operation to finish before map/readback!
- Change vkFence to vkEvent which works more like a GL fence which is what is needed.
- Implement supporting methods and functions
- Do not destroy fence by immediately waiting after copying to dma buffer
- Avoids blindly reusing blit dst sections as they may contain garbage.
If a section was unlocked for a flush, just discard it as its reuse introduces potential data corruption.
Since the data needs to be reuploaded anyway (for now), its better to start afresh
- In case of format mismatch, reset the calculated dst block
- Add a bounds check to determine if data contained in an atlas is good enough for sampling the cache.
If not enough data is provided, fall back to full upload
- Blit operations do format conversion automatically which is NOT what we want!
- Scale onto temp buffer with similar format before performing data cast.
- Use a 5-point tap with an X pattern across the target's memory space to reduce chances of false positives
- TODO: Potential false positives identified, requires some minor
restructuring of surface_store
- Properly synchronize when transitioning to/from GENERAL layout.
- General layout requires full pipeline dependency since its used in a 'general' sense. As such, its use is to be largely avoided.
- gl: Properly initialize and manage sampler states
- gl/vk: Snap overlay elements to pixel grid by aligning to pixel centers
- overlays: Disable grid snapping in stb since its now handled in the backend
- Make detail a separate text entity as it often contains a lot of noise
- Properly pad the entry if needed to avoid text sitting too close to the edge
- Use custom string conversion to ensure overlay deals with extended ascii whenever possible
- Improves language compatibility greatly and avoids empty spaces for unknown glyphs
- Adds all the major buttons to native dialog input options
- Adds more button options for the native osk
- Brighten osk cell backgrounds a bit to improve visibility
- NVIDIA drivers hook into the msq before our nativeEvent handler. This means NV is aware of events before rpcs3 is aware of them and sometimes stops until a new event is triggered.
If rpcs3 is inside a driver call at this time, the system will deadlock since the driver waits for msq which waits for the renderer which waits for the driver.
- Use explicit hook management to control window events
- Add fence timeout to attempt detection of surface loss events
- Disable DEPTH<->RGBA typeless transfers for now as they require a lot more work to work for all vendors
- Do not allow switching layouts to UNDEFINED/PREINITIALIZED formats
- Apply dither to edges that almost fail the straight-up alpha test
- Significantly improves alpha tested geometry far from the camera
- Also removes blend factor overrides/hacks as they give incorrect results due to background bleeding
- Index offset is ignored anyway and only used to calculate vertex attribute divisor index
- Specialized optimization for untouched xfer without primitive restart
- Avoid tagging and rely on read/write barriers and the dirty flag mechanism. Testing is done with a weak 8-byte memory test
- Introducing new data when tagging breaks applications with race conditions where tags can overwrite flushed data
- D24S8 targets have 2 aspects that are dealt with separately; Forcefully initialize the remaining data if a partial init is done. Its 'free' anyway
- It seems that the stencil mask matters when clearing unlike the depth mask and color mask
- gl: Include an execution state wrapper to ensure state changes are consistent. Also removes a lot of required 'cleanup' for helper methods
- texture_cache: Make execition context a mandatory field as it is required for all operations. Also removes a lot of situations where duplicate argument is added in for both fixed and vararg fields
- Explicit read/write barrier for framebuffer resources depending on
usage. Allows for operations like optional memory initialization before
reading
- Remove the required_xxx_pitch constraint as it makes no sense. The pitch controls what can be written per line.
- It is possible to have a huge surface width but only render to a small region at the beginning and have a smaller pitch than can fit the surface (NFS carbon)
- If draw call resources consume memory that intersects with NA parts of the texture cache, we get a framebuffer test mismatch.
This mismatch is false and happens because the thread has not yet reached the point of relocking the pages
- Implicitly invoke a memory barrier if actively reading from an unsynchronized texture
- Simplify memory transfer operations
- Should allow more games to work without strict mode
- Do not bind companion framebuffer when clearing single aspect; let the
contest mechanism sort it out instead
- Do not prematurely tag framebuffers, instead only do so at
write-confirmation time. Should avoid false tagging if setup does not
allow a render to occur.
- Immediate mode is isolated from the rest of the vertex configuration
- TODO: Verify register behaviour when immediate mode is used
Check if per-primitive const register values are supported (likely are)
- Implements a mirror view of D24S8 data that accesses the stencil components.
Finishes the implementation of TEX2D_DEPTH_RGBA as the stencil component was previously missing from the reconstructed data
- Add a few missing destructors
Image classes are inherited a lot and I forgot to make the dtors virtual
- Per-channel conditional execution introduces RAW hazards all over the place
- Its cheaper to process both branches and select between the two
- Also improves ShaderVariable functionality to allow functionality such as match_size and taking complex variables as inputs
* Restore stack in fifo error handling
* Update get register after the cmd execution
* Fix put pause in the middle of command
* Add restore points when branching to self
* Precise nopcmd detection
* Test all invalid cmds for early treatment of queue corruption
To avoid the need (and performance hit) of Read Color/Depth Buffers, we
may not invalidate overlapping fbos inside lock_memory_region unless
they are guaranteed to be superseded by the new one.
This avoids e.g. issues with overblooming, among others.
Fixes VRAM leaks and incorrect destruction of resources, which could
lead to drivers crashes.
Additionally, lock_memory_region is now able to flush superseded
sections. However, due to the potential performance impact of this
for little gain, a new debug setting ("Strict Flushing") has been
added to config.yaml
The hw doesnt fix pitch, when specifying src pitch 0 it copies the same pixels line to dst. keep in mind out_pitch = 0 is not allowed in image_in.
Same goes for buffer_notify, though it allows out_pitch to be 0.
* Dont bother capturing 'destination' blocks with no data. instead premap all main memory to ensure allocated
* Capture zcull and tile state as their compressed gcm forms
* Fix index array capturing, ignore empty sets
* hle gcm: Fix byteswaping in cellGcmSetZcull
* Added a helper function for fetching game's PARAM.SFO path
This should properly get SFO path for unlocked C00 games
* Normalized line endings
* Refresh game list after installing a RAP file
- Do not assume flip marks end-of-frame if executed via syscall
- Also disables skip_frame for these applications as there is no frame boundary
- NOTE: QUEUE_HEAD cannot be relied on as it is seemingly possible to flip the same head and not need to queue it
- Ignore barriers inserted after BEGIN but before any draw commands are emitted
- Properly process tail barriers inserted before END but after draw commands are submitted
- Ignore execution barriers with no effect (same register value written)
- Tries to detect when FIFO preprocessing is beneficial and only enables optimizations if the benefit outweighs the cost
- Current threshold is at least 500 draw calls saved at over 2000 draw calls to justify the overhead
- TODO: More tuning for other CPUs
- Improve vertex attribute layout format. Allows for full 16-bit attribute divisor
- Use actual pitch when declaring framebuffer rsx pitch instead of register value in case of swizzle? rendering
- Replace a few more vectors with simple_array<T>
- Avoid unnecessary string comparisons in backends. We already know referenced textures from the program analysers!
- Also fix visual corruption when using disjoint indexed draws
- Refactor draw call emit again (vk)
- Improve execution barrier resolve
- Allow vertex/index rebase inside begin/end pair
- Add ALPHA_TEST to list of excluded methods [TODO: defer raster state]
- gl bringup
- Simplify
- using the simple_array gets back a few more fps :)
* gcm: Fix tile offset setting
highest bit signifyies location, so ignore that while reading the offset.
* rsx-capture: Fix tile binding
fixes division by zero when dividing by pitch when the tile is not bound.
* rsx-capture: Fix zcull binding
- POS does not have to be fetched from ATTR[0]
- Confirmed with UC1 that uses WEIGHT for positions
- At least one POS stream has to exist to feed the position attribute which cannot repeat for a single triangle
- Matching attachments with resource id fails because drivers are reusing
handles!
- Properly sets up stale fbo ref counting and removal
- Properly sets up resource reference test with subsequent removal to
avoid using a broken fbo entry
- Orders flushing to preserve memory at all cost
- Avoids false positive where flushing overlapping sections can falsely invalidate another with head/tail test
- Forcefully downloads and reuploads data from the CPU in case of unexpected overlaps
- Properly detect correct size of newly created blit targets
- Remember to clear any existing views when changing the default component map!
* CMake: Refactor build to multiple libraries
- Refactor CMake build system by creating separate libraries for
different components
- Create interface libraries for most dependencies and add 3rdparty::*
ALIAS targets for ease of use and use them to try specifying correct
dependencies for each target
- Prefer 3rdparty:: ALIAS when linking dependencies
- Exclude xxHash subdirectory from ALL build target
- Add USE_SYSTEM_ZLIB option to select between using included ZLib and
the ZLib in CMake search path
* Add cstring include to Log.cpp
* CMake: Add 3rdparty::glew interface target
* Add Visual Studio CMakeSettings.json to gitignore
* CMake: Move building and finding LLVM to 3rdparty/llvm.cmake script
- LLVM is now built under 3rdparty/ directory in the binary directory
* CMake: Move finding Qt5 to 3rdparty/qt5.cmake script
- Script has to be included in rpcs3/CMakeLists.txt because it defines
Qt5::moc target which isn't available in that folder if it is
included in 3rdparty directory
- Set AUTOMOC and AUTOUIC properties for targets requiring them (rpcs3
and rpcs3_ui) instead of setting CMAKE_AUTOMOC and CMAKE_AUTOUIC so
those properties are not defined for all targets under rpcs3 dir
* CMake: Remove redundant code from rpcs3/CMakeLists.txt
* CMake: Add BUILD_LLVM_SUBMODULE option instead of hardcoded check
- Add BUILD_LLVM_SUBMODULE option (defaults to ON) to allow controlling
usage of the LLVM submodule.
- Move option definitions to root CMakeLists
* CMake: Remove separate Emu subtargets
- Based on discussion in pull request #5032, I decided to combine
subtargets under Emu folder back to a single rpcs3_emu target
* CMake: Remove utilities, loader and crypto targets: merge them to Emu
- Removed separate targets and merged them into rpcs3_emu target as
recommended in pull request (#5032) conversations. Separating targets
probably later in a separate pull request
* Fix relative includes in pad_thread.cpp
* Fix Travis-CI cloning all submodules needlessly
- NOTE: The address swizzle index is only for use as src. The address registers are only used one channel at a time.
- When the destination of ARL, the encoding is the same as the other temp registers
- Retag resources reprotected under flush_always rules
- Properly check for blit resource fitting taking into account format
mismatch, pitch mismatch and typeless transfers
- The x value contains the VP output value interpolated across primitive surface
- The y coordinate contains the fog fraction according to the selected fog formula
- Newer nvidia drivers are not exposing IMMEDIATE present mode unless you change options in nvidia control panel
This can cause severe performance degradation unless the vsync option is set to "off" in control panel
- Some games overflow the program buffer e.g Resistance games
The observed overflow is one instruction longer, likely an engine bug
with counting instructions
- Tags framebuffer resources on first use (when on_write is called to verify memory)
- Texture cache now selects the best match and even sorts atlas writes with memory write order to avoid older data showing over newer one
- Some formats are proven to ignore swizzle flag
- DXT compressed textures
- COMPRESSED_BG_GB class textures
- Some applications are using swizzled wide integer formats so those are confirmed to swizzle
- Use proper time checking; depending on what is being done one 'tick' can
be almost a millisecond long or several nanoseconds
- Avoid spamming the system timer unless necessary
- A possible deadlock is still present if rsx is trying to get a super_ptr whilst the vm lock holder is in an access violation
This patch makes this scenario very unlikely since each block need only be touched once
- Implement forced reading when calling update method to sync partial lists
- Defer conditional render evaluation and use a read barrier to avoid extra work
- Fix HLE gcm library when binding tiles & zcull RAM
- Do not do a full sync on a texture read barrier
- Avoid calling zcull sync in FIFO spin wait
- Do not flush memory to cache from the renderer side; this method is now obsolete
invalidate_range_impl_base does not mark all textures that will only be
unprotected as dirty when doing a deferred flush, since that is done by
flush_all.
However, if there are no sections to flush, the deferred flush will
use the same code path as non-deferred flushes for unprotecting textures
and forget to mark them as dirty.
This commit fixes this bug.
The existing implementation restarts the loop immediately after
finding a range_data instance that updates the trampled_range.
This commit refactors this method to continue the loop with the updated
trampled_range, and then repeat only those range_data instances that
were iterated through before the trampled_range was last updated.
As a result, the number of total iterations required is reduced.
When the trampled range changes, get_intersecting_set restarts the
outer loop. However, due to an off-by-one error, it skips the first
cache entry when doing so. This can cause a texture not to be
correctly unlocked, which could lead to issues or even deadlocks.
This commit fixes this off-by-one error.
If "address" is not page-aligned, the calculated end address for the
corresponding page is incorrect which can lead to false positives,
causing some textures to be re-uploaded unnecessarily.
This commit fixes this typo.
- Defer compilation process to worker threads
- vulkan: Fixup for graphics_pipeline_state.
Never use struct assignment operator on vk** structs due to padding after sType member (4 bytes)
- Adds proper support for vertex textures, including dimensions other than 2D textures
- Minor analyser fixup, removes spurious 'analyser failed' errors
- Minor optimizations for program state tracking
- Adds dead code elimination
- Fix absolute branch target addresses to take base address into account
- Patch branch targets relative to base address to improve hash matching
- Bumps shader cache version
- Enables shader logging option to write out vertex program binary,
helpful when debugging problems.
- Fix program abort logic to never abort before resolving later label addresses
Fixes jumping over broken code and jumping over END markers
- TEXTURE_CONTROL2 has indexing range of [0..15] without stride skipping!
This register does not have interleaving with other texture registers
- Track shader address poke as it seems to invalidate programs as well
- Avoid re-locking memory if there is no reason to do so (no draws issued)
- Actively bound regions should always get written to the backing cache
- Forcefully read memory during download if writes to the target have occured since last sync event
- Unroll main compute queue loop
- Do NOT run GPU cores on mappable memory! This has a dreadful impact on performance for obvious reasons
- Enable dynamic SSBO indexing (affects AMD)
- Make loop unrolling and loop length variable depending on hardware and find optimum
- Region pitch of 64 (disabled) can be used to indicate packed contents - do not assume it is the actual pitch!
- Also fixes interaction of AA factors with lockable_region size
- Use names for overlay command config and vertex data instead of std::pair.
- Make a couple of compiled_resource constructors explicitly named functions.
- Used to transfer D32S8 data where it makes sense to use this variant
- On nvidia cards, it is very slow to move aspects from D24S8 probably due to the format being faked.
For this reason, the unsafe variant is used for both D16 and D24S8 to avoid the heavy performance loss
- RADV does not keep a mapping ptr around for subsequent remap and falls back to heavy amdgpu methods every time
Explicitly manage pointer in the ring buffer structure to fix this
- Compute is now used to assist in some parts of blit operations, since there are no format conversions with vulkan like OGL does
- TODO: Integrate this into all types of GPU memory conversion operations instead of downloading to CPU then converting
- Removes the old depth scaling using an overlay.
It was never going to work properly due to per-pixel stencil writes being unavailable
- TODO: Preserve stencil buffer during ARGB8->D32S8 shader conversion pass
- Some applications (e.g Backbreaker) use an evil hack to resolve MSAA.
The application respecifies a formerly AA region as a region with no AA then performs a framebuffer feedback lookup.
The old memory keeps AA during read, but writes back to itself with AA resolved.
This is evil on several levels but it just happens to work on PS3
* Support for using arbitrary firmware fonts
* Support for specifying font extension in `font` constructor (useful for most firmware fonts that use .TTF)
- The benefits of FIFO optimizations are huge in some cases.
The optimizations also do not break any tested applications so no need to disable with strict mode
- A debug option is provided to disable this behaviour for testing
- Improves cleanup code to consist of 2 parts, remove then dispose. Remove
does not deallocate the item until dispose is called on it, allowing the
backends to first deallocate external references.
- Caller is responsible for managing list locking and tracking disposable list
of items when external references have been cleaned up before using
dispose method.
1. rsx: Rework section synchronization using the new memory mirrors
2. rsx: Tweaks
- Simplify peeking into the current rsx::thread instance.
Use a simple rsx::get_current_renderer instead of asking fxm for the same
- Fix global rsx super memory shm block management
3. rsx: Improve memory validation. test_framebuffer() and
tag_framebuffer() are simplified due to mirror support
4. rsx: Only write back confirmed memory range to avoid overapproximation errors in blit engine
5. rsx: Explicitly mark clobbered flushable sections as dirty to have them
removed
6. rsx: Cumulative fixes
- Reimplement rsx::buffered_section management routines
- blit engine subsections are not hit-tested against confirmed/committed memory range
Not all applications are 'honest' about region bounds, making the real cpu range useless for blit ops
Drop _xbegin family intrinsics due to bad codegen
Implemented `notifier` class, replacing vm::notify
Minor optimization: detach transactions from global mutex on TSX path
Minor optimization: don't acquire vm::passive_lock on PPU on TSX path
- Properly identify puller spin primitives
- Add a small wake delay after exiting a spin delay. Fixes desynchronization
It seems real hw has a small delay between cell edits to commandbuffer memory at the GET address and the changes becoming visible to the DMA puller
Simulated with a short busy_wait, large values will improve sync but degrade performance
- Reimplements the AMD workaround using an identity buffer to avoid the performance hit of doing multiple glDrawArrays for every single compiled set
- Reimplements first/count allocation using a scratch buffer to reduce allocation overhead when large number of draw calls is used
- Improve dirty state tracking affecting program state
- vk: Refactor out transform constants upload into a separate channel to avoid if possible
transform data uploads are quite expensive
- Introduces a gpu program analyser step to examine shader contents before attempting compilation or cache search
- Avoids detecting shader as being different because of unused textures having state changes
- Adds better program size detection for vertex programs
- Improved vertex program decompiler
- Properly support CAL type instructions
- Support jumping over instructions marked with a termination marker with BRA/CAL class opcodes
- Fix SRC checks and abort
- Fix CC register initialization
- NOTE: Even unused SRC registers have to be valid (usually referencing in.POS)
- Readback does not work at all with float textures on AMD openGL
Driver throws a bogus OUT_OF_MEMORY error regardless of amount of VRAM and system RAM available
- Formats support is linked to the physical device and by extension the logical device derived from it
It therefore makes no sense to track this as a separate object.
Simplifies parameter passing and template specialization.
Also avoids corner cases with AMD hardware (where D24S8 is not supported)
- vk: Clear dirty textures before copying 'old contents' in case the old data does not fill the new region
- rsx: Properly decode border color - seems to be in BGRA format
- vk: better approximation of border color to better choose between the presets
- vk: Individually clear color images outside render pass and without scissor
- vk: Fix renderpass selection for clear overlay pass
- vk: Include scissor region when emulating clear mask
NOTES:
- vk: Completely avoid using vkClearXXXXimage - its 'broken' on nvidia drivers
Spec is vague about the function so its not an actual bug
ClearAttachment is clearly defined as bypassing bound state which works correctly
- TODO: Implement memory sampling to simulate loading precleared memory if cell used memset to preinitialize the framebuffer
Autoclear depth to 1|255 and color to 0 is hacky!
- gl/vk: Fix subresource copy/blit
- gl/vk: Fix default_component_map reading
- vk: Reimplement cell readback path and improve software channel decoder
- Properly name the subresource layout field - its in blocks not bytes!
- Implement d24s8 upload from memory correctly
- Do not ignore DEPTH_FLOAT textures - they are depth textures and abide by the depth compare rules
- NOTE: Redirection of 16-bit textures is not implemented yet
Primary:
- Fix SET_SURFACE_CLEAR channel mask - it has been wrong for all these
years! Layout is RGBA not ARGB/BGRA like other registers
Other Fixes:
- vk: Implement subchannel clears using overla pass
- vk: Simplify and clean up state management
- gl: Fix nullptr deref in case of failed subresource copy
- vk/gl: Ignore float buffer clears as hardware seems to do
- Ignore unlocked blit sections [TODO]
- Do not attempt blit on hw if bytesize is unsupported
- gl: Implement typeless memory transfers
Uses pbo to handle type-agnostic memory transfer
- Mainly affected are colormasks and read swizzles
NOTES:
- Writes to G write to the second and fourth component (YW)
- Writes to B write to first and third component (XZ)
- This means the actual format layout is BGBG (RGBA) making RG mapping actually GR
- Clear does not seem to have any intended effect on this format (TLOU)
- Properly detect inline array registers vs constant value registers
- Silence needless spam, 306E is 2D surface engiine, the assumption that y is multiplied by 306E pitch is not crazy
Bug fix: don't display new data entry when not asked for
Use icon/title provided by the game for the new data entry
Display new data entry at the beginning of list when necessary
Minor cellSaveData cleanup
Fixes the following issues on Tales of Vesperia which requires SRM.
- Blacked out scene after the sleeping dog now renders correctly
- Ghosting effect. The ghosting was most noticeable as a delay between the character rendering and the cell shading around the character. This appears to be gone with this change.
- GL queries share the target binding (not asynchronous!)
- Discard active queries by closing them, leave closed queries alone (nothing to be done for discard op)
- Reimplements render target views used for sampling
- Optimizes access using an encoded control token
- Adds proper encoding for 24-bit textures (DRGB8 -> ORGB/OBGR)
- Adds proper encoding for ABGR textures (ABGR8 -> ARGB8)
- Silence some compiler warnings as well
- TODO: Real texture views for OGL current method is a hack
- Separate TXB from TXL: They are completely different!
- Properly perform TMU emulation in the fragment shader. Implemens SRGB conversion and alphakill at the moment
- Properly perform ROP emulation in the fragment shader. Implements FRAMEBUFFER_SRGB. While support on the chip looks to be incomplete (and wierd), it does work
- Document some more bits in SHADER_CONTROL register
- Export some debug information in the free texture register space components zw
Very useful when analysing renderdoc captures
- Enable shadow comparison on depth as long as compare function is active and texture is uploaded for depth read
Some engines (UE3) read all the components in the shader and use mul/mad with the result
gl/vk: Bump shader cache version
gl/vk: Disable anisotropic override when strict mode enabled as it is proven to alter some games negatively
gl: Clamp buffer view range to not exceed the backing buffer size. Also add assert for the same condition
- Track asynchronous operations in RSX core
- Add read barriers to force pending writes to finish.
Fixes zcull delay flicker in all UE3 titles without forcing hard stall
- Increase zcull latency as all writes should be synchronized now
- ZCULL unit emulation rewritten
- ZCULL reports are now deferred avoiding pipeline stalls
- Minor optimizations; replaced std::mutex with shared_mutex where contention is rare
- Silence unnecessary error message
- Small improvement to out of memory handling for vulkan and slightly bump vertex buffer heap
- Removes the duplicate local_transform_constants
- Resets the transform constants on every context reset
- Simplifies the code abit which should make it faster
- NOTE: Transform constants are persistent across context re-init events (VF5)
- TODO: Alot of work is still needed to execute draw commands out of order
Thats the only solution to games sending many draw calls with high frequency of state changes
- Adds support for compilation on MAC with moltenVK. Note that vulkan does
not work on MacOS yet. There are two main blockers:-
1) Texture component swizzles are not supported except for
RGBA8_UNORM->BGRA8_UNORM.
2) There is a bug in their SPIR-V -> MSL generator.
GLSL.std.450.xxxx functions are not implemented which breaks rpcs3
functionality. Trying to compile a vertex shader will throw because
unpackHalf2x16 is missing.
- According to NV_fragment_program spec, registers are zero initialized always
- A program even without writing to these registers will have black (0, 0, 0, 0) output
Confirmed behaviour with MotorStorm games. Their engine uses this quirk to clear color buffers when doing depth replace
Might be an unfixed game bug
According to the NV_fragment_program spec, its not feasible to have 16-bit depth wries
NOTE: NV_fragement_program precedes NV_fragment_program2 which is very
close to what RSX consumes. It is hardware from that era afterall
- Forces Bitcast of texture data if input format cannot possibly be the
same as the existing texture format
- rsx: Other minor improvements to texture cache :-
- remove obsolete blit engine incompatibility warning. The texture will be re-uploaded if it is indeed incompatible
- Implement warn_once and err_once to avoid spamming the log with systemic errors
- Track mispredicted flushes
- Reswizzle bitcasted texture data to native layout
TODO: Also needs reshuffle according to input remap vector
- A new step is added between decompilation and pipeline object creation allowing for properties to be updated based on shader contents
- Allos masking off attachment writes that are unmodified in the shader
- gl: Do not call makeCurrent every flip - it is already called in set_current()
- gl: Improve ring buffer behaviour; use sliding window to view buffers larger than maximum viewable hardware range
NV hardware can only view 128M at a time
- gl/vk: Bump transform constant heap size When lots of draw calls are issued, the heap is exhaused very fast (8k per draw)
- gl: Remove CLIENT_STORAGE_BIT from ring buffers. Performance is marginally better without this flag (at least on windows)
- Identify depth textures reaching the gpu via shader_read upload path
- Use correct timestamp counter for opengl
- inline draw_state::test_property because msvc doesnt do it for us
- Do not bother rechecking the dirty sampler pool for hits. Its faster to create new sampler than to search the pool
- Reserve some memory on vertex layout struct to reduce reallocation penalty
- Adds support for abstract implementations
- Adds native windowing implementations for WIN32 and X11 as fallbacks
when present support is lacking (headless configs)
- For some reason the hardware forgets that primitive restart is enabled and tries to actually read vertex index 65535
- Works correctly if uint32 vertex indices are used instead of uint16 for cases where primitive restart is active
- Fix for texture barriers
- vulkan: Rework texture cache handling of depth surfaces
- Support for scaled depth blit using overlay pass
- Support proper readback of D24S8 in both D32F_S8 and D24U_S8 variants
- Optimize the depth conversion routines with SSE
- vulkan: Replace slow single element copy with std::memcpy
- Check heap status before attempting blit operations
- Bump guard size on upload buffer as well
- Implement flush-always behaviour to partially fix readback from a currently bound fbo
- Without this, only the first read is correct, as more draws are added the results become 'wrong'
- Fixes WCB and cpublit behviour
- Synchronize blit_dst surfaces to avoid data loss when gpu texture scaling is used
- Its still faster in such cases to disable gpu texture scaling but some types cannot be disabled without force cpu blit (e.g framebuffer transfers)
- Memory management tuning
- rsx: on-demand texture cache rescanning for unprotected sections
- rsx: Only framebuffer resources are upscaled
- Do not resize regular blit engine resources
- Lazy initialize readback buffer when using opengl
-- These measures should help minimize vram usage
- For some surfaces, dimensions are passed via the log2 bits rather than surface pitch
-- This is similar to the setup for nv406e and probably means the surfaces are padded and swizzled
- Do not assume texture2D when creating new textures
- Flag invalid texture cache if readonly texture is trampled by fbo memory.
Avoids binding a stale handle to the pipeline and is rare enough that it should not hurt performance
- Do not add unused subroutines in shaders unless necessary
-- makes shaders easier to read and disassembled spir-v has less clutter
- glsl: Replace switch block with lookup table
- vulkan: Do not assume an aux frame context must exist in a well defined state as set in init_buffers() since the request might be external (via overlays path)
- gl: Do not bother waiting for idle before servicing external flip requests
- gl: Queue overlay cleanup requests to ensure only glthread attempts touching the context
- overlays: Do not compute size metrics for invalid/unsupported glyphs
- opengl driver optimization for nvidia. On nvidia glTextureBufferRange performance is horrendous
-- Initialize texture buffer to whole buffer at startup and use absolute offsets to read data instead
-- Over 2x performance in some cases (Resogun, TNT racers)
- gl/vk: Do not flip non-existent display buffers. Fixes spec violation at boot in TNT racers demo
- whitespace fixes for sys_rsx
- Implement low bit decode override flags for 2-component textures
- Properly implement alot of texture remaps according to the autotest results
rsx: Do not unnecessarily shuffle WZYX->RGBA unless we have proof
- From looking at format swizzles, this is incorrect
- Use edges of depth range to map clamped stuff
Disable range compression on regular draws vs extended range draws
- Some applications require full 0-1 usage without compromises.
-- TODO: This leaves the extended range z values to fight with regular draws in the .99 - 1.0 range
- The scale offset matrix is fine but on real hardware the z results seem to be independent of near/far clipping distances
-- If depth falls within near/far, clamp depth value to [0,1]
- Always flush the primary queue and wait if not involking readback from rsx thread
-- Should fix some instances of device_lost when using WCB
-- Marked remaining case as TODO
-- TODO: optimize amount of time rsx waits for external threads trying to read
- Track last working state and reset to it if RSX starts to desync
-- This is especially useful when running vulkan since the renderer will easily outpace the rest of the system when merely recording draw commands
- Ignore empty sets
-- Mark empty/invalid IB sets as having 0 element counts.
- Make all texture access on non-existent textures return 0
- If border color is closer to 0, then set alpha to 0 as well (might break some corner cases with alpha test)
- Zero initialize null sampler
- Force mipmap count to 1 if sampling from an RTV/DSV
- TODO: Better wcb flush detection, it should be better to re-upload the texture after it has been dwnloaded if expected mipmaps are > 1
- Sometimes square renders are done to surfaces with pitch=64 and re-uploaded with swizzle scanning
-- This setup avoids discarding targets if they are square and pitch == 64
- Abort nv406e semaphore acquire if the rsx thread stalls/crashes
- Fix texture size approximation to take mipmaps into account. Fixes some games hanging with WCB
- Avoid unprotecting memory until just before we have to write the data
- Avoids race conditions where the caller thread takes too long to enter the second phase and another thread accesses the "bad" memory
- Reorganize storage hash vs ucode hash
- Scan for actual fragment program start in case leading NOPed code precedes the actual instructions
-- e.g FEAR2 Demo has over 32k of padding before actual program code that messes up hashes
