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...based on https://github.com/johanmalm/checkpatch.pl ``` src/server.c:161: ERROR: space required before the open parenthesis '(' src/server.c:473: CHECK: Blank lines aren't necessary after an open brace '{' src/desktop.c:228: WARNING: function definition argument 'struct wl_list *' should also have an identifier name src/output.c:289: CHECK: Blank lines aren't necessary before a close brace '}' src/interactive.c:20: WARNING: suspect code indent for conditional statements (8, 17) src/interactive.c:27: WARNING: Statements should start on a tabstop src/config/rcxml.c:607: CHECK: Blank lines aren't necessary after an open brace '{' src/config/rcxml.c:638: CHECK: line length of 91 exceeds 90 columns src/config/rcxml.c:639: CHECK: Blank lines aren't necessary after an open brace '{' src/debug.c:126: WARNING: suspect code indent for conditional statements (8, 24) src/debug.c:129: WARNING: suspect code indent for conditional statements (8, 24) src/view.c:307: CHECK: Please use a blank line after function/struct/union/enum declarations src/workspaces.c:52: CHECK: Blank lines aren't necessary after an open brace '{' src/workspaces.c:147: ERROR: space prohibited before that close parenthesis ')' src/workspaces.c:226: CHECK: line length of 91 exceeds 90 columns src/workspaces.c:290: CHECK: Please don't use multiple blank lines src/workspaces.c:328: WARNING: else is not generally useful after a break or return src/cursor.c:18: ERROR: do not initialise statics to NULL src/cursor.c:20: CHECK: Please don't use multiple blank lines src/common/scaled_font_buffer.c:55: CHECK: Assignment operator '=' should be on the previous line src/common/graphic-helpers.c:44: CHECK: Blank lines aren't necessary after an open brace '{' src/common/graphic-helpers.c:71: CHECK: multiple assignments should be avoided src/common/scaled_scene_buffer.c:115: CHECK: Assignment operator '=' should be on the previous line src/common/scaled_scene_buffer.c:135: CHECK: Assignment operator '=' should be on the previous line src/common/fd_util.c:15: CHECK: line length of 106 exceeds 90 columns src/common/fd_util.c:22: CHECK: line length of 106 exceeds 90 columns src/common/fd_util.c:25: ERROR: code indent should use tabs where possible src/common/fd_util.c:25: WARNING: please, no spaces at the start of a line include/workspaces.h:13: ERROR: code indent should use tabs where possible include/workspaces.h:13: WARNING: Block comments use * on subsequent lines include/workspaces.h:13: WARNING: Block comments use a trailing */ on a separate line include/workspaces.h:20: CHECK: Please don't use multiple blank lines include/workspaces.h:26: ERROR: "foo * bar" should be "foo *bar" include/action.h:11: ERROR: code indent should use tabs where possible include/action.h:12: ERROR: code indent should use tabs where possible include/action.h:12: WARNING: Block comments use a trailing */ on a separate line include/common/scaled_scene_buffer.h:62: CHECK: Please don't use multiple blank lines ```
69 lines
2.3 KiB
C
69 lines
2.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#ifndef __LAB_COMMON_SCALED_SCENE_BUFFER_H
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#define __LAB_COMMON_SCALED_SCENE_BUFFER_H
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#define LAB_SCALED_BUFFER_MAX_CACHE 2
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struct wl_list;
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struct wlr_buffer;
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struct wl_listener;
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struct wlr_scene_tree;
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struct lab_data_buffer;
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struct scaled_scene_buffer;
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struct scaled_scene_buffer_impl {
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/* Return a new buffer optimized for the new scale */
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struct lab_data_buffer *(*create_buffer)
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(struct scaled_scene_buffer *scaled_buffer, double scale);
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/* Might be NULL or used for cleaning up */
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void (*destroy)(struct scaled_scene_buffer *scaled_buffer);
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};
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struct scaled_scene_buffer {
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struct wlr_scene_buffer *scene_buffer;
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int width; /* unscaled, read only */
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int height; /* unscaled, read only */
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void *data; /* opaque user data */
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/* Private */
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double active_scale;
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struct wl_list cache; /* struct scaled_buffer_cache_entry.link */
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struct wl_listener destroy;
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struct wl_listener output_enter;
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struct wl_listener output_leave;
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const struct scaled_scene_buffer_impl *impl;
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};
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/**
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* Create an auto scaling buffer that creates a wlr_scene_buffer
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* and subscribes to its output_enter and output_leave signals.
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*
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* If the maximal scale changes, it either sets an already existing buffer
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* that was rendered for the current scale or - if there is none - calls
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* implementation->create_buffer(self, scale) to get a new lab_data_buffer
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* optimized for the new scale.
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*
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* Up to LAB_SCALED_BUFFER_MAX_CACHE (2) buffers are cached in an LRU fashion
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* to handle the majority of use cases where a view is moved between no more
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* than two different scales.
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*
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* scaled_scene_buffer will clean up automatically once the internal
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* wlr_scene_buffer is being destroyed. If implementation->destroy is set
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* it will also get called so a consumer of this API may clean up its own
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* allocations.
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*/
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struct scaled_scene_buffer *scaled_scene_buffer_create(
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struct wlr_scene_tree *parent,
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const struct scaled_scene_buffer_impl *implementation);
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/* Clear the cache of existing buffers, useful in case the content changes */
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void scaled_scene_buffer_invalidate_cache(struct scaled_scene_buffer *self);
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/* Private */
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struct scaled_scene_buffer_cache_entry {
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struct wl_list link; /* struct scaled_scene_buffer.cache */
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struct wlr_buffer *buffer;
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double scale;
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};
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#endif /* __LAB_COMMON_SCALED_SCENE_BUFFER_H */
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