Some GPU drivers set a maximal extent size of 0x0 when the window gets
minimized. One example is Intel on Windows. A swapchain with extent
size of 0x0 is invalid, so we cannot reinitialize the renderer... Work
around that by postponing the restart as long as the maxmimal extent
size stays 0x0.
This could should be done in the client (don't call into th renderer
when the window is minimized), but it would need a lot of changes
to the client <-> renderer interactions. So take the easy route.
The client might call into the renderer after it was shut down by
`VID_ShutdownRenderer()` or initialized `VID_LoadRenderer()`. This
is arguably a client bug, but hard to fix on client side and not
a problem for all other renderers. Work around it by marking the
current frame as 'not started' at Vulkan shutdown and init.
This is more in line with the rest of the code. Reinitializing the
internal state when building a new context is saver than relying on
Vulkan telling us that something is wrong an reacting to that.
Just calling `QVk_Shutdown()` is wrong. It doesn't wait for Vulkan to
finish, which can cause crashes. And it leaks some ressources which
makes the GPU driver unhappy.
The ref_vk renderer was written for vkQ2 which has differend renderer
<-> client semantics. In YQ2 we can end up initializing or shutting the
renderer down several times. Not by the client, but by the client not
knowing of the renderer has already initialized / shutdown it's internal
state. This is fatal, leading to ressource leaks, crashes and other fun.
Introduce a new global variable `vk_initialize` and use it to track if
we're initialized or not.
Since `vid_fullscreen` isn't special anymore, it's completely handled by
`Vid_Restart_f()`, which in turn simplifies the spaghetti code in the vk
renderer. If I understand that glibberish correctly the only we need to
handle is the partial restart in `QVk_Restart()`.
VK_WARNING: Validation Performance Warning: [ UNASSIGNED-BestPractices-vkCreateRenderPass-image-requires-memory ] Object 0: handle = 0x58e7d23ea0, type = VK_OBJECT_TYPE_DEVICE; | MessageID = 0x4003982 | Attachment 2 in the VkRenderPass is a multisampled image with 4 samples, but it uses loadOp/storeOp which requires accessing data from memory. Multisampled images should always be loadOp = CLEAR or DONT_CARE, storeOp = DONT_CARE. This allows the implementation to use lazily allocated memory effectively. (performance)
This brings yquake2 closer to vkQuake2 regarding renderer restarts when
the swapchain is out of date, among other situations that trigger a
Vulkan renderer restart.
Basically, the current behavior has the problem that when the renderer
is restarted at the beginning of the frame, the models are lost and we
end up with "ERROR: Mod_PointInLeaf: bad model" when attempting to
render anything after that restart.
To solve this, we move the restart logic to EndFrame and add a twist to
it: we use a vid_refresh variable to signal the server that the client
needs re-registration before starting the next frame cleanly, which will
trigger the registration logic to prepare the models again.
When creating the Vulkan texture samplers, make them have the real
anisotropic filtering value selected by the user. This has two side
effects:
* We no longer need two sets of texture samplers in Vulkan (one with and
another one without anisotropic filtering).
* The anisotropic filter value in Vulkan is no longer an on/off switch
and we use the value as chosen by the user.
Switching this back to Vanilla Q2 behavior fixes at least one lightning
problem in the space map in baseq2. It'll break the lighting in some
addon maps, but is more correct from a global standpoint. You can't
have everything...
Closes#677.
If an error is detected in vkAcquireNextImageKHR or vkQueuePresentKHR,
avoid restarting the whole video system and the game window. Instead,
shut down the Vulkan subsystem as gracefully as possible and restart it
without touching the window.
This fixes the problem with infinite video restarts under the Gnome
desktop environment.
When windowed or in "switch resolution" mode, the viewport must be kept
in the top-left corner or it will appear cut while in fullscreen.
Also, make offset and width calculations safe from the point of view of
the swapchain extent, in case there's a mismatch.
Since we are now loading the world color buffer content before drawing
on them again, we need to make sure the attachment layout transition
from shader-read-optimal to color-attachment-optimal happens before
color attachment read operations.
The contents of the previous drawn frame, used to mask geometry glitches
due to geometry sometimes not being watertight, was not being correctly
loaded for MSAA cases.
When MSAA is not used, the single-sample attachment needs to be loaded
and stored. With MSAA enabled, it's the multisample attachment the one
needing to be loaded and stored.
The pipeline used to draw a texture quad was only created compatible
with the RP_UI render pass, which has a single-sample color attachment.
This made the pipeline work when MSAA was disabled, but it did not work
properly with it enabled.
To fix the issue, create a set of pipelines, instead of a single one,
with compatibility with the different types of render passes, as the
pipeline is used for both the scaled down view borders as well as UI
elements in the third render pass.
src/client/refresh/soft/sw_main.c:
1512 (style) Variable 'err' is assigned a value that is never used. [unreadVariable]
src/client/refresh/vk/vk_rmain.c:
1023 (style) Suspicious calculation. Please use parentheses to clarify the code. The code ''a&b?c:d'' should be written as either ''(a&b)?c:d'' or ''a&(b?c:d)''. [clarifyCalculation]
src/client/sound/ogg.c:
335 (style,inconclusive) Function 'OGG_PlayTrack' argument 1 names different: declaration 'track' definition 'trackNo'. [funcArgNamesDifferent]
212 (style) Local variable 'gogTrack' shadows outer variable [shadowVariable]
src/client/sound/sdl.c:
179 (style) The scope of the variable 'i' can be reduced.
180 (style) The scope of the variable 'lpos' can be reduced.
181 (style) The scope of the variable 'ls_paintedtime' can be reduced.
182 (style) The scope of the variable 'out_idx' can be reduced.
183 (style) The scope of the variable 'count' can be reduced.
185 (style) The scope of the variable 'p' can be reduced.
186 (style) The scope of the variable 'snd_linear_count' can be reduced.
187 (style) The scope of the variable 'step' can be reduced.
189 (style) The scope of the variable 'snd_out' can be reduced.
330 (style) The scope of the variable 'data' can be reduced.
368 (style) The scope of the variable 'data' can be reduced.
369 (style) The scope of the variable 'left' can be reduced.
369 (style) The scope of the variable 'right' can be reduced.
401 (style) The scope of the variable 'end' can be reduced.
529 (style) The scope of the variable 's' can be reduced.
799 (style) The scope of the variable 'i' can be reduced.
874 (style) The scope of the variable 'scale' can be reduced.
910 (style) The scope of the variable 'srcsample' can be reduced.
1093 (style) The scope of the variable 'total' can be reduced.
196 (style) Local variable 'i' shadows outer variable [shadowVariable]
197 (style) Local variable 'count' shadows outer variable [shadowVariable]
src/client/sound/sound.c:
450 (style) The scope of the variable 'maleFilename' can be reduced.
980 (style) The scope of the variable 'num' can be reduced.
1085 (style) The scope of the variable 'sfx' can be reduced.
423 (style,inconclusive) Function 'S_RegisterSound' argument 1 names different: declaration 'sample' definition 'name'. [funcArgNamesDifferent]
909 (style,inconclusive) Function 'S_StartLocalSound' argument 1 names different: declaration 's' definition 'sound'. [funcArgNamesDifferent]
1048 (style,inconclusive) Function 'S_Update' argument 2 names different: declaration 'v_forward' definition 'forward'. [funcArgNamesDifferent]
1048 (style,inconclusive) Function 'S_Update' argument 3 names different: declaration 'v_right' definition 'right'. [funcArgNamesDifferent]
1048 (style,inconclusive) Function 'S_Update' argument 4 names different: declaration 'v_up' definition 'up'. [funcArgNamesDifferent]
This commit removes the previous R_CleanupBorders hack and fixes
textured border drawing, so borders are correctly drawn in the right
place and are not taken into account when applying the underwater
effect.
This commit includes the following changes:
* When vid_fullscreen is 1, the game is now drawn centered in the
screen instead of the top left corner, by modifying the viewport and
scissor when drawing the world warp and UI render passes.
* When vid_fullscreen is 1, the world view no longer has an incorrect
size and/or aspect ratio. This was due to the world warp and UI
render passes sampling from the whole color buffer instead of the
restricted render area. To fix this, the postprocessing and world warp
shaders now use unnormalized coordinates, corrected with the frame
offset, and sample directly from the appropriate texels.
* The game no longer outputs pixels which have not been written to,
which are usually displayed black but may come out with undefined
colors. For this, some output color attachments are cleared before
drawing the final elements in the frame.
