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https://gitlab.freedesktop.org/wlroots/wlroots.git
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e69e1b5f7a
Leverage go-kdfs [1] to automatically generate tables (basic info for single-plane formats, YUV list, opaque list). This allows us to drop our manually written tables and check format info in a kdfs viewer (the kdfs CLI or pixfmtdb) to ensure it's correct. Add a new gen-pixel-format ninja target to regenerate tables. Tables are checked in Git instead of being generated at build-time, so that the kdfs CLI isn't a build-time dependency. block_width/block_height are now never zero. [1]: https://gitlab.freedesktop.org/emersion/go-kdf
68 lines
1.3 KiB
Bash
Executable file
68 lines
1.3 KiB
Bash
Executable file
#!/bin/sh -eu
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#
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# usage: gen_pixel_format.sh pixel_format_table.c
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KDFS=${KDFS:-kdfs}
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output_file="$1"
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gen_info() {
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"$KDFS" show --json 'DRM_FORMAT_*' | jq -r '
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to_entries[]
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| select((.value.bytes_plane | length) == 1)
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" {\n" +
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" .drm_format = \(.key),\n" +
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" .bytes_per_block = \(.value.bytes_plane[0]),\n" +
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" .block_width = \(.value.texel_block_dimension[0]),\n" +
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" .block_height = \(.value.texel_block_dimension[1]),\n" +
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" },"
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'
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}
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gen_opaque() {
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"$KDFS" show --json 'DRM_FORMAT_*' | jq -r '
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to_entries[]
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| select(any(.value.sample_info[]; .channel == "a") | not)
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| " case \(.key):"
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'
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}
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gen_ycbcr() {
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"$KDFS" show --json 'DRM_FORMAT_*' | jq -r '
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to_entries[]
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| select(.value.color_model == "yuvsda")
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| " case \(.key):"
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'
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}
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cat >"$output_file" << EOF
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// Generated by gen_pixel_formats.sh - DO NOT EDIT
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#include <drm_fourcc.h>
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#include "render/pixel_format.h"
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const struct wlr_pixel_format_info pixel_format_info[] = {
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$(gen_info)
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};
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const size_t pixel_format_info_len = sizeof(pixel_format_info) / sizeof(pixel_format_info[0]);
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bool pixel_format_is_opaque(uint32_t format) {
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switch (format) {
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$(gen_opaque)
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return true;
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default:
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return false;
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}
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}
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bool pixel_format_is_ycbcr(uint32_t format) {
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switch (format) {
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$(gen_ycbcr)
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return true;
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default:
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return false;
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}
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}
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EOF
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