Emulates negative y viewports with ARB_clip_control. This allows us to
more easily emulated pipelines with tessellation and/or geometry shader
stages. It also avoids corrupting games with transform feedbacks and
negative viewports (gl_Position.y was being modified).
Update src/video_core/shader/control_flow.cpp
Co-Authored-By: Mat M. <mathew1800@gmail.com>
Update src/video_core/shader/control_flow.cpp
Co-Authored-By: Mat M. <mathew1800@gmail.com>
Update src/video_core/shader/control_flow.cpp
Co-Authored-By: Mat M. <mathew1800@gmail.com>
Update src/video_core/shader/control_flow.cpp
Co-Authored-By: Mat M. <mathew1800@gmail.com>
Update src/video_core/shader/control_flow.cpp
Co-Authored-By: Mat M. <mathew1800@gmail.com>
Update src/video_core/shader/control_flow.cpp
Co-Authored-By: Mat M. <mathew1800@gmail.com>
Nvidia's OpenGL driver maps gl(Named)BufferSubData with some requirements
to a fast. This path has an extra memcpy but updates the buffer without
orphaning or waiting for previous calls. It can be seen as a better
model for "push constants" that can upload a whole UBO instead of 256
bytes.
This path has some requirements established here:
http://on-demand.gputechconf.com/gtc/2014/presentations/S4379-opengl-44-scene-rendering-techniques.pdf#page=24
Instead of using the stream buffer, this commits moves constant buffers
uploads to calls of glNamedBufferSubData and from my testing it brings a
performance improvement. This is disabled when the vendor is not Nvidia
since it brings performance regressions.
Originally on the last commit I thought TLD4 acted the same as TLD4S and
didn't have a mask. It actually does have a component mask. This commit
corrects that.
This commit fixes an issue where not all 4 results of tld4 were being
written, the color component was defaulted to red, among other things.
It also implements the bindless variant.
Bindless textures were using u64 to pack the buffer and offset from
where they come from. Drop this in favor of separated entries in the
struct.
Remove the usage of std::set in favor of std::list (it's not std::vector
to avoid reference invalidations) for samplers and images.
