Make sure that the passed buffer size is not negative and that
evaluating the buffer size in bytes doesn't overflow. With that
we make sure that the buf_offset in the decoding loop can't wrap
around when it is updated.
v2: - move check to virgl_renderer_submit_cmd (Chia-I)
- remove the size conversion on both ends
v3: - keep conversion to size in bytes (Chia-I)
- explicitely convert to uint32_t to silence a warning
Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: Chia-I Wu <olvaffe@gmail.com>
Avoids compiling shader variants in the host driver if they will never
be used for rendering.
Wait to register shaders with the host GL driver until after shader
dependencies have been resolved and the selected set of variants is
known to be used for rendering.
The cost of this workaround is taht TGSI to GLSL conversion is still
performed for every variant (observed to happen twice for every
vertex/fragment shader in some cases), but this is expected to be much
cheaper than calling out to the host driver to compile unused variants.
Workaround for #180.
Signed-off-by: Ryan Neph <ryanneph@google.com>
Reviewed-by: Gert Wollny <gert.wollny@collabora.com>
Shader programs are submitted for linking in the host driver twice as
frequently as for native applications due to circular shader
dependencies, immediate TGSI conversion, and explicit shader variant
selection ordering at draw-time.
Circular dependencies are resolved by re-running shader variant
selection twice before emitting calling glUseProgram() in the host.
The cost of this workaround is that GLSL is still emitted to the host
driver for compilation into intermediate/native instructions even for
unused shader variants, but the extraneous linking has been eliminated.
Workaround for #180.
v2: changed shader select order on second pass; only select frag shader
once.
Signed-off-by: Ryan Neph <ryanneph@google.com>
Reviewed-by: Gert Wollny <gert.wollny@collabora.com>
This is useful when one wants to trace events like frame begin and end
Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: Rohan Garg <rohan.garg@collabora.com>
This implements accepting a marker message string from the
guest and passing it to the host implementation.
Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: Rohan Garg <rohan.garg@collabora.com>
On hosts that support the NVX_GPU_MEMORY_INFO extension, we can query
the total GPU memory through GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX.
Signed-off-by: Rohan Garg <rohan.garg@collabora.com>
Reviewed-by: Gert Wollny <gert.wollny@collabora.com>
Per-context fences signal in creation order only within a context. Two
per-context fences in two contexts might signal in any order.
When a per-context fence is created, a fence cookie can be specified.
The cookie will be passed to write_context_fence callback. This
replaces fence_id that is used in ctx0 fencing.
write_context_fence is called on each fence unless the fence has
VIRGL_RENDERER_FENCE_FLAG_MERGEABLE set. When the bit is set,
write_context_fence might be skipped.
Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
Acked-by: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: Louis-Francis Ratté-Boulianne <lfrb@collabora.com>
Other than hooking things up, vrend_renderer_check_fences and
vrend_renderer_export_ctx0_fence have some non-trivial changes. This is
because fence->ctx is no longer always vrend_state.ctx0. It can also
point to a user context or be NULL now.
Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
Acked-by: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: Louis-Francis Ratté-Boulianne <lfrb@collabora.com>
A fence cookie (void *) is more flexible than a fence id to the users.
When per-context fencing is introduced, its API will use fence cookies.
Conversions between fence ids and fence cookies are some free casts.
Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
Acked-by: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: Louis-Francis Ratté-Boulianne <lfrb@collabora.com>
Replace the unused ctx_id by a vrend_context pointer. When a
vrend_context is destroyed, remove fences associated with the context to
avoid dangling pointers.
For now, the context is always ctx0 which is never destroyed before the
fences. That will change later when per-context fencing is introduced.
Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
Acked-by: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: Louis-Francis Ratté-Boulianne <lfrb@collabora.com>
Being an interface of virgl_context, this provides per-context fencing.
This is motivated by Vulkan, where each context (i.e., VkInstance) is
independent from one another. Fences submitted to difference contexts
do not signal in the order they are submitted. It is in theory and in
practice also true for OpenGL when SW/HW scheduling or context priority
is considered.
Besides being per-context, fences in Vulkan are also per-VkDevice and
per-VkQueue within a context. This interface uses an opaque uint64_t to
identify the queue a fence is submitted to, similar to how an opaque
uint64_t is used to identify a blob.
Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
Acked-by: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: Louis-Francis Ratté-Boulianne <lfrb@collabora.com>
There are two calls of do_readpixels, and both of them creates a new
frame buffer object and destroys it immediately after that. This change
integrates those operations into do_readpixels.
One thing to note that glReadBuffer(GL_COLOR_ATTACHMENT0) has been
called after binding such a newly created frame buffer object and before
calling do_readpixels in vrend_transfer_send_readpixels. The call is
simply deleted because a new frame buffer object should have
GL_COLOR_ATTACHMENT0 as read buffer.
Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Reviewed-by: Gert Wollny <gert.wollny@collabora.com>
vrend resource could cache a frame buffer object to read a texture
back. However, vrend resource is independent of OpenGL context
while a frame buffer object is not because it is a container
object. On QEMU, a frame buffer object is typically cached on each
renderer context while its destruction operation is performed on
"0 context", resulting in destroying another frame buffer object
whose name is identical but is created in "0 context".
This change simply removes the caching mechanism and eliminates the
need of a context switch when destroying a cached frame buffer
object and some handling of cache misses.
Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Reviewed-by: Gert Wollny <gert.wollny@collabora.com>
Allow for querying of detailed GPU memory information
through the GL_ATI_meminfo and GL_NVX_gpu_memory_info
extensions.
Signed-off-by: Rohan Garg <rohan.garg@collabora.com>
Reviewed-by: Gert Wollny <gert.wollny@collabora.com>
Otherwise the code will simply crash, we should give it a chance to
exit cleanly.
Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: Rohan Garg <rohan.garg@collabora.com>
They were detected with clang-1200.0.32.29.
Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Reviewed-by: Gert Wollny <gert.wollny@collabora.com>
This will allow for the virgl userspace driver to be able to respond
to PIPE_CAP_VIDEO_MEMORY requests.
Signed-off-by: Rohan Garg <rohan.garg@collabora.com>
Reviewed-by: Gert Wollny <gert.wollny@collabora.com>
GL_TEXTURE_SWIZZLE_RGBA is not available on GLES
Fixes: 4ab4d4e ("vrend: pass texture swizzle as array")
Signed-off-by: Lepton Wu <lepton@chromium.org>
Reviewed-by: Gert Wollny <gert.wollny@collabora.com>
Percetto is available at:
https://github.com/olvaffe/percetto
Signed-off-by: John Bates <jbates@chromium.org>
Reviewed-By: Gert Wollny <gert.wollny@collabora.com>
As we transition to perfetto, there are more efficient ways
of adding metadata to traces that we can use when it is
needed.
Signed-off-by: John Bates <jbates@chromium.org>
Reviewed-By: Gert Wollny <gert.wollny@collabora.com>
We requre version 330 when we create a compute shader on OpenGL, so we
should also report the cap only when we have this version.
Closes#200
Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
This fixes a regression introduced by !462 which breaks some GLES3 and
GLES31 dEQP tests.
Fixes: 1b51495 ("vrend: replace if-chain by using switch/case")
Signed-off-by: Lepton Wu <lepton@chromium.org>
Reviewed-by: Gert Wollny <gert.wollny@collabora.com>
This reverts 374dd5bae8
Fix i965 crash with bin/gl-3.1-vao-broken-attrib
The crash with i965 can't be reproduced anymore, and the Gallium
drivers do the correct checks to not crash there, so it is
not necessary to do the extra checking.
Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: Reviewed-by: Chia-I Wu <olvaffe@gmail.com>
Also change the interface of called functions to take sub_ctx
Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: Reviewed-by: Chia-I Wu <olvaffe@gmail.com>
Gert Wollny
Ryan Neph
Gurchetan Singh
Rohan Garg
Chia-I Wu
Akihiko Odaki
cheyang
Lepton Wu
John Bates