linux-pipewire: Factor out formats list into a file

This will help share these formats with the upcoming Camera portal
code.

plugins/linux-pipewire/CMakeLists.txt

@@ -23,7 +23,9 @@ add_library(OBS::pipewire ALIAS linux-pipewire)
 
 target_sources(
   linux-pipewire
-  PRIVATE linux-pipewire.c
+  PRIVATE formats.c
+          formats.h
+          linux-pipewire.c
           pipewire.c
           pipewire.h
           portal.c

plugins/linux-pipewire/formats.c

@@ -0,0 +1,122 @@
+/*
+ * formats.c
+ *
+ * Copyright 2023 Georges Basile Stavracas Neto <georges.stavracas@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "formats.h"
+
+#include <libdrm/drm_fourcc.h>
+#include <pipewire/pipewire.h>
+
+static const struct obs_pw_video_format supported_formats[] = {
+	{
+		SPA_VIDEO_FORMAT_BGRA,
+		DRM_FORMAT_ARGB8888,
+		GS_BGRA,
+		VIDEO_FORMAT_BGRA,
+		false,
+		4,
+		"ARGB8888",
+	},
+	{
+		SPA_VIDEO_FORMAT_RGBA,
+		DRM_FORMAT_ABGR8888,
+		GS_RGBA,
+		VIDEO_FORMAT_RGBA,
+		false,
+		4,
+		"ABGR8888",
+	},
+	{
+		SPA_VIDEO_FORMAT_BGRx,
+		DRM_FORMAT_XRGB8888,
+		GS_BGRX,
+		VIDEO_FORMAT_BGRX,
+		false,
+		4,
+		"XRGB8888",
+	},
+	{
+		SPA_VIDEO_FORMAT_RGBx,
+		DRM_FORMAT_XBGR8888,
+		GS_BGRX,
+		VIDEO_FORMAT_NONE,
+		true,
+		4,
+		"XBGR8888",
+	},
+	{
+		SPA_VIDEO_FORMAT_YUY2,
+		DRM_FORMAT_YUYV,
+		GS_UNKNOWN,
+		VIDEO_FORMAT_YUY2,
+		false,
+		2,
+		"YUYV422",
+	},
+	{
+		SPA_VIDEO_FORMAT_NV12,
+		DRM_FORMAT_NV12,
+		GS_UNKNOWN,
+		VIDEO_FORMAT_NV12,
+		false,
+		2,
+		"NV12",
+	},
+#if PW_CHECK_VERSION(0, 3, 41)
+	{
+		SPA_VIDEO_FORMAT_ABGR_210LE,
+		DRM_FORMAT_ABGR2101010,
+		GS_R10G10B10A2,
+		VIDEO_FORMAT_NONE,
+		false,
+		10,
+		"ABGR2101010",
+
+	},
+	{
+		SPA_VIDEO_FORMAT_xBGR_210LE,
+		DRM_FORMAT_XBGR2101010,
+		GS_R10G10B10A2,
+		VIDEO_FORMAT_NONE,
+		false,
+		10,
+		"XBGR2101010",
+
+	},
+#endif
+};
+
+#define N_SUPPORTED_FORMATS \
+	(sizeof(supported_formats) / sizeof(supported_formats[0]))
+
+bool obs_pw_video_format_from_spa_format(
+	uint32_t spa_format, struct obs_pw_video_format *out_video_format)
+{
+	for (size_t i = 0; i < N_SUPPORTED_FORMATS; i++) {
+		if (supported_formats[i].spa_format != spa_format)
+			continue;
+
+		if (out_video_format)
+			*out_video_format = supported_formats[i];
+
+		return true;
+	}
+	return false;
+}

plugins/linux-pipewire/formats.h

@@ -0,0 +1,39 @@
+/*
+ * formats.h
+ *
+ * Copyright 2023 Georges Basile Stavracas Neto <georges.stavracas@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#pragma once
+
+#include <obs-module.h>
+
+#include <spa/param/video/format-utils.h>
+
+struct obs_pw_video_format {
+	uint32_t spa_format;
+	uint32_t drm_format;
+	enum gs_color_format gs_format;
+	enum video_format video_format;
+	bool swap_red_blue;
+	uint32_t bpp;
+	const char *pretty_name;
+};
+
+bool obs_pw_video_format_from_spa_format(
+	uint32_t spa_format, struct obs_pw_video_format *out_format_info);