diff options
author | Benjamin Barenblat <bbarenblat@gmail.com> | 2022-01-17 23:12:32 -0500 |
---|---|---|
committer | Benjamin Barenblat <bbarenblat@gmail.com> | 2022-01-30 15:55:27 -0500 |
commit | d0e18bdb7924c71cdca8dd983711171d87ef28be (patch) | |
tree | 6be11aae0b7c8874e6507b75b4ef26d1353952c7 /src/x/screen.h |
glplanet draws Earth like it currently appears from space, putting
nighttime areas in shadow and daytime areas in light. It’s modeled
after Xplanet (http://xplanet.sourceforge.net/), but whereas Xplanet is
entirely a CPU-resident program, glplanet draws using OpenGL. It’s thus
much less resource-intensive, particularly when using high-resolution
textures.
Diffstat (limited to 'src/x/screen.h')
-rw-r--r-- | src/x/screen.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/src/x/screen.h b/src/x/screen.h new file mode 100644 index 0000000..88acae5 --- /dev/null +++ b/src/x/screen.h @@ -0,0 +1,51 @@ +// Copyright 2021 Benjamin Barenblat +// +// Licensed under the Apache License, Version 2.0 (the "License"); you may not +// use this file except in compliance with the License. You may obtain a copy of +// the License at +// +// https://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations under +// the License. + +#ifndef GLPLANET_SRC_X_SCREEN_H_ +#define GLPLANET_SRC_X_SCREEN_H_ + +#include <stdint.h> +#include <xcb/xcb.h> +#include <xcb/xcb_aux.h> + +#include "src/x/types.h" + +namespace x { + +// An X screen. +// +// This class is thread-safe. +class Screen final { + public: + explicit Screen(xcb_screen_t* screen) noexcept : screen_(screen) {} + + Screen(Screen&&) noexcept = default; + Screen& operator=(Screen&&) noexcept = default; + + Id root() const noexcept { return screen_->root; } + Id black_pixel() const noexcept { return screen_->black_pixel; } + + uint8_t DepthOfVisual(Id visual) const noexcept { + return xcb_aux_get_depth_of_visual(screen_, visual); + } + + xcb_screen_t* AsXcbScreen() const noexcept { return screen_; } + + private: + xcb_screen_t* screen_; +}; + +} // namespace x + +#endif // GLPLANET_SRC_X_SCREEN_H_ |