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Commit Graph

5 Commits

Author SHA1 Message Date
Lynne
135e1c0adf
lavu/vulkan: check for initialization when freeing buffers
What happens on startup is that ffmpeg.c initializes the filter,
then frees it without feeding a single frame through. With no
input frame, the filter lacks a hardware device. The rest of the
uninit code checks if Vulkan objects exist, which they must if there's
a hardware device, but vk->DeviceWaitIdle does not require an object.
So, add a check for it.
2021-11-20 01:48:45 +01:00
Lynne
da72aca7b0
lavu/vulkan: add support for using libshaderc as a GLSL compiler
It's got a much better API that's actually maintained, it eliminates
race conditions, it comes with a pkg-config file by default, and
unfortunately isn't currently packaged by Debian or other large
distributions.
2021-11-19 16:47:30 +01:00
Lynne
f6dd30df24
lavfi/vulkan: split off lavfi-specific code into vulkan_filter.c
The issue is that libavfilter depends on libavcodec, and when doing a
static build, if libavcodec also includes "libavfilter/vulkan.c", then
during link-time, compiling programs will fail as there would be multiple
definitions of the same symbols in both libavfilter and libavcodec's
object files.
Linkers are, however, more permitting if both files that include
a common file that's used as a template are one-to-one identical.
Hence, to make both files the same in the future, export all avfilter
specific functions to a separate file.
There is some work in progress to make templated files like this be
compiled only once, so this is not a long-term solution.

This also removes a macro that could be used to toggle SPIRV compilation
capability on #include-time, as this could cause the files to be different.
2021-11-19 16:47:26 +01:00
Lynne
b2aec70bd6
lavu/vulkan: add option to switch between shader compilers and cleanup glslang 2021-11-19 13:44:47 +01:00
Lynne
d1133e8c44
lavu/vulkan: move common Vulkan code from libavfilter to libavutil 2021-11-19 13:44:45 +01:00