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pixel-formats: Added pixel_format_get_info_shm() helper for printing SHM buffers

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In current form SHM buffers pixel format can only be printed as 0 and 1.
With the help of this helper we align with DRM_FORMAT_ pixel format.

Signed-off-by: Marius Vlad <marius.vlad0@gmail.com>
This commit is contained in:
Marius Vlad 2018-11-20 17:04:57 +02:00
parent 62a9436417
commit a9a630401f
2 changed files with 25 additions and 0 deletions
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12
libweston/pixel-formats.c
View File

@ -32,6 +32,7 @@
#include <unistd.h>
#include <string.h>
#include <drm_fourcc.h>
#include <wayland-client-protocol.h>
#include "helpers.h"
#include "wayland-util.h"
@ -375,6 +376,17 @@ static const struct pixel_format_info pixel_format_table[] = {
},
};
WL_EXPORT const struct pixel_format_info *
pixel_format_get_info_shm(uint32_t format)
{
if (format == WL_SHM_FORMAT_XRGB8888)
return pixel_format_get_info(DRM_FORMAT_XRGB8888);
else if (format == WL_SHM_FORMAT_ARGB8888)
return pixel_format_get_info(DRM_FORMAT_ARGB8888);
else
return pixel_format_get_info(format);
}
WL_EXPORT const struct pixel_format_info *
pixel_format_get_info(uint32_t format)
{

13
libweston/pixel-formats.h
View File

@ -115,6 +115,19 @@ struct pixel_format_info {
const struct pixel_format_info *
pixel_format_get_info(uint32_t format);
/**
* Get pixel format information for a SHM format code
*
* Given a SHM format code, return a DRM pixel format info structure describing
* the properties of that format.
*
* @param format SHM format code to get info for.
* @returns A pixel format structure (must not be freed), or NULL if the
* format could not be found.
*/
const struct pixel_format_info *
pixel_format_get_info_shm(uint32_t format);
/**
* Get pixel format information for a named DRM format
*