fegger
7c04506dde
A headless receiver has no window manager, so a windowed window is meaningless there — the screencast should simply fill the screen. The renderer now goes borderless fullscreen automatically when SDL runs the KMSDRM backend, and --fullscreen forces the same behavior in desktop sessions. The video keeps its aspect ratio via SDL_SetRenderLogicalPresentation(LETTERBOX): a 4:3 desktop on a 16:9 TV renders with black bars instead of a stretched picture, the cursor is hidden, and the clear-before-draw keeps the bars black. Verified live on a 3440x1440 monitor: the --fullscreen receiver window covered the entire display while a 4:3 synthetic feed rendered with pure-black pillarbox bars (Y=0/SAT=0) and a saturated-red center (V=254). meson test 5/5 in both build configurations.
40 lines
965 B
C++
40 lines
965 B
C++
#pragma once
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#include "screencast/codec/decoder.h"
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#include "screencast/render/error.h"
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#include <memory>
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#include <string>
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namespace sc {
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struct RendererConfig {
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std::string window_title = "screencast receiver";
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int initial_width = 1280;
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int initial_height = 720;
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// Borderless fullscreen. On the headless KMSDRM backend (no window
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// manager) fullscreen is enabled automatically.
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bool fullscreen = false;
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};
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class Renderer {
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public:
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virtual ~Renderer() = default;
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// Present one decoded frame. Returns false if the window was closed.
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virtual bool present(const DecodedFrame& frame) = 0;
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// Pump events (window close, resize). Non-blocking.
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virtual bool poll_events() = 0;
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// Destroy the window and release GPU resources.
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virtual void shutdown() = 0;
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};
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class RendererFactory {
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public:
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static RendererResult<std::unique_ptr<Renderer>> create(const RendererConfig& config);
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};
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} // namespace sc
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