Shaders, pipelines, textures, staging textures and framebuffers call
into the classes of the backend in use, which each backend's Gfx sets
as g_video_backend_kind; those classes are final, so the calls are
direct. A std::default_delete specialization deletes them as their own
class. The Null and Software renderers use the base shader and pipeline
types.
Nothing is drawn over the game any more. The OSD message queue, the
ImGui overlay that drew it (with the shader-compile progress window and
the statistics, projection and scissor windows), and the imgui and implot
libraries are removed from the build.
Core::DisplayMessage now writes to the log, and the former OSD calls
go through it. Shader compilation no longer presents frames outside
retro_run while it waits.
Deleted with it: the "OSD enabled" core option, the OSD, FPS, speed,
graph, statistics and internal-resolution display settings, and the
ImGui shaders and texture conversion.
Enable through command line options:
-C Graphics.Settings.TexturePNGCompressionLevel=[0-9]
Or from GFX.ini:
[Settings]
TexturePNGCompressionLevel=[0-9]
@see #10792
Almost all the virtual functions in Renderer are part of dolphin's
"graphics api abstraction layer", which has slowly formed over the
last decade or two.
Most of the work was done previously with the introduction of the
various "AbstractX" classes, associated with texture cache cleanups
and implementation of newer graphics APIs (Direct3D 12, Vulkan, Metal).
We are simply taking the last step and yeeting these functions out
of Renderer.
This "AbstractGfx" class is now completely agnostic of any details
from the flipper/hollywood GPU we are emulating, though somewhat
specialized.
(Will not build, this commit only contains changes outside VideoBackends)
SPDX standardizes how source code conveys its copyright and licensing
information. See https://spdx.github.io/spdx-spec/1-rationale/ . SPDX
tags are adopted in many large projects, including things like the Linux
kernel.
This is already initialized in the class definition. This would
previously cause a -Wreorder warning on macOS, as m_config is
defined after m_currently_mapped.
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